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Primasari I, Hoeboer CM, Bakker A, Olff M. Adaptation and validation study of the Indonesian version of the Global Psychotrauma Screen in an undergraduate student population. Compr Psychiatry 2024; 132:152485. [PMID: 38653061 DOI: 10.1016/j.comppsych.2024.152485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 04/05/2024] [Accepted: 04/13/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The high incidence of potentially traumatic events (PTEs) in Indonesia warrants early identification of those with probable trauma-related disorders in order to tailor prevention and intervention for trauma-related symptoms. OBJECTIVES This study aims to adapt and validate a novel brief transdiagnostic screener, the Global Psychotrauma Screen (GPS), in Indonesian undergraduate students. METHODS An online survey was administered among Indonesian undergraduate students (N = 322). Exploratory factor analysis, reliability analyses, clinical validity analyses, and correlational analyses were performed to evaluate the construct validity, reliability, clinical validity, and convergent-divergent validity of the Indonesian GPS. Hierarchical multiple regression was conducted to assess the relationship between risk factors and trauma-related symptoms. The relationship between four categories of trauma-related symptom severity and social/work functioning was measured using Analysis of Covariance. RESULTS Exploratory factor analysis yielded a single-factor solution. The Indonesian GPS demonstrated good internal consistency, test-retest correlation, and absolute agreement, indicating good reliability. The Indonesian GPS also had an acceptable area under the curve, sensitivity, and specificity for a probable diagnosis of Post-Traumatic Stress Disorder (PTSD), Complex-PTSD (CPTSD), depression, and generalized anxiety disorder (GAD). We also established evidence for the convergent and divergent validity of GPS. The GPS risk factors (low psychological resilience, other stressful events, history of mental illness, and low social support) contributed to predicting trauma-related symptoms after controlling for gender, age, employment status, and faculty background. Additionally, in comparison to participants from the mild and low categories of GPS symptoms scores, participants from the severe and moderate category reported impaired lowered social/work functioning. CONCLUSION The current findings indicate that the Indonesian GPS is a valid and reliable transdiagnostic trauma screener for Indonesian undergraduate students. This first comprehensive validation of the GPS in Indonesia calls for more research in Lower-middle Income Countries (LMICs) as a way towards prevention and early intervention for trauma-related symptoms.
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Affiliation(s)
- Indira Primasari
- Amsterdam UMC location University of Amsterdam, Psychiatry, Amsterdam Public Health, Amsterdam, the Netherlands; Faculty of Psychology, Universitas Indonesia, Depok, Indonesia.
| | - Chris M Hoeboer
- Amsterdam UMC location University of Amsterdam, Psychiatry, Amsterdam Public Health, Amsterdam, the Netherlands
| | - Anne Bakker
- Amsterdam UMC location University of Amsterdam, Psychiatry, Amsterdam Public Health, Amsterdam, the Netherlands; Department of Trauma Care, OLVG, Amsterdam, the Netherlands
| | - Miranda Olff
- Amsterdam UMC location University of Amsterdam, Psychiatry, Amsterdam Public Health, Amsterdam, the Netherlands; ARQ National Psychotrauma Centre, Diemen, the Netherlands
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Canada K, Mazloum-Farzaghi N, Rådman G, Adams J, Bakker A, Baumeister H, Berron D, Bocchetta M, Carr V, Dalton M, de Flores R, Keresztes A, La Joie R, Mueller S, Raz N, Santini T, Shaw T, Stark C, Tran T, Wang L, Wisse L, Wuestefeld A, Yushkevich P, Olsen R, Daugherty A. A (Sub)field Guide to Quality Control in Hippocampal Subfield Segmentation on Highresolution T 2-weighted MRI. bioRxiv 2023:2023.11.29.568895. [PMID: 38076964 PMCID: PMC10705396 DOI: 10.1101/2023.11.29.568895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Inquiries into properties of brain structure and function have progressed due to developments in magnetic resonance imaging (MRI). To sustain progress in investigating and quantifying neuroanatomical details in vivo, the reliability and validity of brain measurements are paramount. Quality control (QC) is a set of procedures for mitigating errors and ensuring the validity and reliability of brain measurements. Despite its importance, there is little guidance on best QC practices and reporting procedures. The study of hippocampal subfields in vivo is a critical case for QC because of their small size, inter-dependent boundary definitions, and common artifacts in the MRI data used for subfield measurements. We addressed this gap by surveying the broader scientific community studying hippocampal subfields on their views and approaches to QC. We received responses from 37 investigators spanning 10 countries, covering different career stages, and studying both healthy and pathological development and aging. In this sample, 81% of researchers considered QC to be very important or important, and 19% viewed it as fairly important. Despite this, only 46% of researchers reported on their QC processes in prior publications. In many instances, lack of reporting appeared due to ambiguous guidance on relevant details and guidance for reporting, rather than absence of QC. Here, we provide recommendations for correcting errors to maximize reliability and minimize bias. We also summarize threats to segmentation accuracy, review common QC methods, and make recommendations for best practices and reporting in publications. Implementing the recommended QC practices will collectively improve inferences to the larger population, as well as have implications for clinical practice and public health.
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Affiliation(s)
- K.L. Canada
- Institute of Gerontology, Wayne State University, Detroit, MI 48202
| | - N. Mazloum-Farzaghi
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada
- Rotman Research Institute, Baycrest Health Sciences, Toronto, Ontario, Canada
| | - G. Rådman
- Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - J.N. Adams
- Department of Neurobiology and Behavior, University of California, Irvine, CA 92697
| | - A. Bakker
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - H. Baumeister
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - D. Berron
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - M. Bocchetta
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, London, UK
- Centre for Cognitive and Clinical Neuroscience, Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, UK
| | - V. Carr
- Department of Psychology, San Jose State University, San Jose, CA 95192
| | - M.A. Dalton
- School of Psychology, University of Sydney, Sydney, Australia
| | - R. de Flores
- INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), Institut Blood and Brain @ Caen-Normandie, Caen-Normandie University, GIP Cyceron, France
| | - A. Keresztes
- Brain Imaging Centre, Research Centre for Natural Sciences, Eötvös Loránd Research Network (ELKH), Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - R. La Joie
- Memory and Aging Center, Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, CA 94158
| | - S.G. Mueller
- Department of Radiology, University of California, San Francisco, CA 94143
- Center for Imaging of Neurodegenerative Diseases, San Francisco VA Medical Center, San Francisco, California 94121
| | - N. Raz
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
- Department of Psychology, Stony Brook University, Stony Brook, NY 11794
| | - T. Santini
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213
| | - T. Shaw
- School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia
| | - C.E.L. Stark
- Department of Neurobiology and Behavior, University of California, Irvine, CA 92697
| | - T.T. Tran
- Department of Psychology, Stanford University, Stanford, CA 94305
| | - L. Wang
- Department of Psychiatry and Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH 43210
| | - L.E.M. Wisse
- Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - A. Wuestefeld
- Clinical Memory Research Unit, Department of Clinical Sciences, Malmö, Lund University, Sweden
| | - P.A. Yushkevich
- Penn Image, Computing and Science Laboratory, Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104
| | - R.K. Olsen
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada
- Rotman Research Institute, Baycrest Health Sciences, Toronto, Ontario, Canada
| | - A.M. Daugherty
- Institute of Gerontology, Wayne State University, Detroit, MI 48202
- Department of Psychology, Wayne State University, Detroit, MI 48202
- Michigan Alzheimer’s Disease Research Center, Ann Arbor, MI 48105
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Primasari I, Hoeboer CM, Bakker A, Olff M. Validation of the Indonesian resilience evaluation scale in an undergraduate student population. BMC Public Health 2022; 22:2410. [PMID: 36550465 PMCID: PMC9783966 DOI: 10.1186/s12889-022-14769-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Psychological resilience is an important factor in coping with Potentially Traumatic Events (PTEs) and might mitigate the development of trauma-related disorders. Due to the high risk of natural disasters, criminal activity, and transportation accidents among the Indonesian population, it is critical to assess psychological resilience as a protective factor. This study aimed to validate the Resilience Evaluation Scale (RES) in Indonesian undergraduate students. METHODS We recruited 327 students (78% female, the mean age is 19.61 (SD = 1.24)) between March and June 2020 using convenience sampling, 256 (78.28%) of whom completed the RES twice with an interval of 2 weeks for test-retest reliability purposes. Parallel Analysis and Exploratory Factor Analysis were performed to examine the construct validity of the RES. The internal consistency and the test-retest reliability were assessed using Cronbach Alpha, Pearson Correlations, and Interclass Correlation Coefficients (ICC). Convergent and divergent validity were examined using Pearson Correlations. RESULTS EFA analysis yielded a two-factor structure for the final eight-item Indonesian version of RES, which reflected two underlying constructs of resilience: self-confidence and self-efficacy. The Indonesian version of RES demonstrated good internal consistency (α = 0.74-0.82) and test-retest reliability (r = 0.68-0.78; ICC = 0.67-0.78). The result showed that the RES total and subscale scores positively correlated with all criterion variables (resilience, self-efficacy, self-esteem, level of global functioning, and adaptive coping strategy; r = 0.27-0.73). RES total and subscale scores negatively correlated with opposite constructs (PTSD, depression, social/work impairment, and maladaptive coping strategy; r = - 0.27- -0.46). CONCLUSIONS The current study showed that the Indonesian RES is a valid and reliable measurement of psychological resilience in Indonesian undergraduate students. The final 8-item Indonesian RES, a freely available resilience instrument, is recommended for future studies and public mental health initiatives in the Indonesian population.
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Affiliation(s)
- Indira Primasari
- grid.509540.d0000 0004 6880 3010Amsterdam UMC location University of Amsterdam, Psychiatry, Meibergdreef 9, Amsterdam, the Netherlands ,Amsterdam Public Health, Mental Health, Amsterdam, The Netherlands ,grid.9581.50000000120191471Faculty of Psychology, Universitas Indonesia, Depok, Indonesia
| | - Chris M. Hoeboer
- grid.509540.d0000 0004 6880 3010Amsterdam UMC location University of Amsterdam, Psychiatry, Meibergdreef 9, Amsterdam, the Netherlands ,Amsterdam Public Health, Mental Health, Amsterdam, The Netherlands
| | - Anne Bakker
- grid.509540.d0000 0004 6880 3010Amsterdam UMC location University of Amsterdam, Psychiatry, Meibergdreef 9, Amsterdam, the Netherlands ,Amsterdam Public Health, Mental Health, Amsterdam, The Netherlands
| | - Miranda Olff
- grid.509540.d0000 0004 6880 3010Amsterdam UMC location University of Amsterdam, Psychiatry, Meibergdreef 9, Amsterdam, the Netherlands ,Amsterdam Public Health, Mental Health, Amsterdam, The Netherlands ,grid.491097.2ARQ National Psychotrauma Centre, Diemen, The Netherlands
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van Dijk A, Anten J, Bakker A, Evers N, Hoekstra AT, Chang JC, Scheenstra MR, Veldhuizen EJA, Netea MG, Berkers CR, Haagsman HP. Innate Immune Training of Human Macrophages by Cathelicidin Analogs. Front Immunol 2022; 13:777530. [PMID: 35958593 PMCID: PMC9360325 DOI: 10.3389/fimmu.2022.777530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/15/2022] [Indexed: 11/21/2022] Open
Abstract
Trained innate immunity can be induced in human macrophages by microbial ligands, but it is unknown if exposure to endogenous alarmins such as cathelicidins can have similar effects. Previously, we demonstrated sustained protection against infection by the chicken cathelicidin-2 analog DCATH-2. Thus, we assessed the capacity of cathelicidins to induce trained immunity. PMA-differentiated THP-1 (dTHP1) cells were trained with cathelicidin analogs for 24 hours and restimulated after a 3-day rest period. DCATH-2 training of dTHP-1 cells amplified their proinflammatory cytokine response when restimulated with TLR2/4 agonists. Trained cells displayed a biased cellular metabolism towards mTOR-dependent aerobic glycolysis and long-chain fatty acid accumulation and augmented microbicidal activity. DCATH-2-induced trained immunity was inhibited by histone acetylase inhibitors, suggesting epigenetic regulation, and depended on caveolae/lipid raft-mediated uptake, MAPK p38 and purinergic signaling. To our knowledge, this is the first report of trained immunity by host defense peptides.
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Affiliation(s)
- Albert van Dijk
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
- *Correspondence: Albert van Dijk,
| | - Jennifer Anten
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Anne Bakker
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Noah Evers
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Anna T. Hoekstra
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, Netherlands
| | - Jung-Chin Chang
- Division Cell Biology, Metabolism & Cancer, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Maaike R. Scheenstra
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Edwin J. A. Veldhuizen
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Mihai G. Netea
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands
| | - Celia R. Berkers
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, Netherlands
- Division Cell Biology, Metabolism & Cancer, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Henk P. Haagsman
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
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Qing Y, Bakker A, van der Meer CAI, Te Brake H, Olff M. Assessing psychological resilience: translation and validation of the Chinese version of the resilience evaluation scale (RES). Eur J Psychotraumatol 2022; 13:2133358. [PMID: 36325258 PMCID: PMC9621262 DOI: 10.1080/20008066.2022.2133358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND The Resilience Evaluation Scale (RES) is a novel and freely available measure of psychological resilience (factored into self-confidence and self-efficacy). To date, psychometric properties were evaluated in Dutch and American samples, but not yet in a Chinese sample. OBJECTIVE We aimed to validate the RES in a Chinese sample by examining its factor structure, reliability, and construct validity. METHODS The RES was translated into Chinese following a cross-cultural translation and adaptation procedure. Self-report questionnaires including the RES, exposure to potentially traumatic events (PTE's), the PTSD checklist for DSM-5 (PCL-5), and scales for conceptually related constructs of psychological resilience were then administered via an online survey. RESULTS In total, 484 Chinese adults (females, 66.9%; age: 27.33 ± 6.86 years) participated. Parallel analysis results suggested a one-factor structure for the Chinese RES. The Chinese RES demonstrated good internal consistency (Cronbach's alpha = 0.88). Construct validity was demonstrated through significant associations with hypothesised related constructs and through a relation with lower levels of PTSD among the PTE-exposed subsample (n = 116) via the mediating role of avoidant coping strategies, i.e. behavioural disengagement and self-blame. CONCLUSION Our results suggest that the RES is a reliable and valid assessment of psychological resilience to use in Chinese, in addition to its Dutch and English versions. The RES could potentially be adopted to measure psychological resilience in cross-cultural contexts.
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Affiliation(s)
- Yulan Qing
- Department of Psychiatry, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Public Health Research Institute, Amsterdam, Netherlands.,Amsterdam Neuroscience Research Institute, Amsterdam, Netherlands
| | - Anne Bakker
- Department of Psychiatry, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Public Health Research Institute, Amsterdam, Netherlands.,Department of Trauma Care, OLVG, Amsterdam, Netherlands
| | | | - Hans Te Brake
- ARQ National Psychotrauma Centre, ARQ Centre of Excellence Impact, Diemen, Netherlands
| | - Miranda Olff
- Department of Psychiatry, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Public Health Research Institute, Amsterdam, Netherlands.,Amsterdam Neuroscience Research Institute, Amsterdam, Netherlands.,ARQ National Psychotrauma Centre, Diemen, Netherlands
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6
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Kok HP, van der Zee J, Guirado FN, Bakker A, Datta NR, Abdel-Rahman S, Schmidt M, Wust P, Crezee J. Treatment planning facilitates clinical decision making for hyperthermia treatments. Int J Hyperthermia 2021; 38:532-551. [PMID: 33784914 DOI: 10.1080/02656736.2021.1903583] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Background: Treatment quality is important in clinical hyperthermia. Guideline-based treatment protocols are used to determine system settings and treatment strategies to ensure effective tumor heating and prevent unwanted treatment-limiting normal tissue hot spots. Realizing both these goals can prove challenging using generic guideline-based and operator-dependent treatment strategies. Hyperthermia treatment planning (HTP) can be very useful to support treatment strategies. Although HTP is increasingly integrated into the standard clinical workflow, active clinical application is still limited to a small number of hyperthermia centers and should be further stimulated.Purpose: This paper aims to serve as a practical guide, demonstrating how HTP can be applied in clinical decision making for both superficial and locoregional hyperthermia treatments.HTP in clinical decision making: Seven problems that occur in daily clinical practice are described and we show how HTP can enhance insight to formulate an adequate treatment strategy. Examples use representative commercially available hyperthermia devices and cover all stages during the clinical workflow. Problems include selecting adequate phase settings, heating ability analysis, hot spot suppression, applicator selection, evaluation of target coverage and heating depth, and predicting possible thermal toxicity in case of an implant. Since we aim to promote a general use of HTP in daily practice, basic simulation strategies are used in these problems, avoiding a need for the application of dedicated advanced optimization routines that are not generally available.Conclusion: Even fairly basic HTP can facilitate clinical decision making, providing a meaningful and clinically relevant contribution to maintaining and improving treatment quality.
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Affiliation(s)
- H P Kok
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - J van der Zee
- Department of Radiation Oncology, Erasmus MC, Rotterdam, The Netherlands
| | - F Navarro Guirado
- Department of Medical Physics, Regional University Hospital of Málaga, Malaga, Spain
| | - A Bakker
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - N R Datta
- Kantonsspital Aarau, Centre for Radiation Oncology KSA-KSB, Aarau, Switzerland
| | - S Abdel-Rahman
- Department of Medicine III, University Hospital LMU Munich, Munich, Germany
| | - M Schmidt
- Department of Radiation Oncology, University Hospital Erlangen, Erlangen, Germany
| | - P Wust
- Department of Radiation Oncology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - J Crezee
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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Abstract
Atomically precise tailoring of interface structures is crucial for developing functional materials. We demonstrate an N-heterocyclic carbene (NHC) based molecular tool, which modifies the structure of a gold surface with atomic accuracy by the formation of gold nanorods. After adsorption on the gold surface, individual surface atoms are pulled out by the NHCs, generating single-atom surface defects and mobile NHC-Au species. Atomistic calculations reveal that these molecular "ballbots" can act as assembling tools to dislocate individual surface atoms. The predicted functionality of these carbene-based complexes is confirmed by scanning tunneling microscopy measurements. Cooperative operation of these NHC-Au species induces a step-wise formation of gold nanorods. Consequently, the surface is re-structured by a zipper-type mechanism. Our work presents a foundation to utilize molecular-based nanotools to design surface structures.
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Affiliation(s)
- Saeed Amirjalayer
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Straße 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstraße 1148149MünsterGermany
- Center for Multiscale Theory and ComputationWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
| | - Anne Bakker
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Straße 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstraße 1148149MünsterGermany
| | - Matthias Freitag
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
| | - Harald Fuchs
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Straße 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstraße 1148149MünsterGermany
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Amirjalayer S, Bakker A, Freitag M, Glorius F, Fuchs H. Inside Cover: Cooperation of N‐Heterocyclic Carbenes on a Gold Surface (Angew. Chem. Int. Ed. 47/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.202012187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Saeed Amirjalayer
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Germany
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Germany
- Center for Multiscale Theory and Computation Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Germany
| | - Anne Bakker
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Germany
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Germany
| | - Matthias Freitag
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Germany
| | - Harald Fuchs
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Germany
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Germany
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Amirjalayer S, Bakker A, Freitag M, Glorius F, Fuchs H. Innentitelbild: Kooperative Zusammenarbeit von N‐heterocyclischen Carbenen auf einer Goldoberfläche (Angew. Chem. 47/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Saeed Amirjalayer
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
- Center for Multiscale Theory and Computation Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Anne Bakker
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
| | - Matthias Freitag
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Harald Fuchs
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
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Bakker A, Mathijssen H, Balt J, Van Dijk V, Veltkamp M, Swaans M, Akdim F, Grutters J, Post M. Long-term monitoring of arrhythmias in cardiac sarcoidosis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Screening for cardiac sarcoidosis (CS) is recommended since it can manifest with ventricular arrhythmias (VA), atrioventricular conduction block (AVB) and sudden cardiac death (SCD). However, risk stratification for SCD is challenging, in particular in patients without overt cardiac symptoms.
Purpose
This study reports the practice-based risk stratification for SCD and the incidence of arrhythmias and mortality in CS patients by long-term monitoring of arrhythmias.
Methods
A retrospective, single center cohort study was performed in 537 patients with sarcoidosis screened for cardiac involvement with cardiac MRI and fluorodeoxyglucose PET in an hospital, a Dutch tertiary referral center. CS was diagnosed in 115 of 537 patients (21%), complete follow up was available in 108 patients (94%). After risk assessment for SCD (figure 1) an ICD was implanted in 16 high-risk patients. Within the92 low-risk patients, 80 had an internal loop recorder (ILR) implanted and 12 patients received no device. Chart review was performed to assess the occurrence of VA, AVB, death, ICD therapy and device related complications.
Results
During a mean follow-up of 31±15 months, 9 out of 80 ILR patients (11.3%) received an ICD of whom 7 (8.8%) based on recorded arrhythmias (VA in 5 and AVB in 2 patients).
Five out of the total 25 ICD patients (20%) experienced sustained VA successfully treated with anti-tachycardia pacing in 2 (8%) and terminated spontaneously in all other patients. Two ICD patients experienced a mild pocket infection, treated with antibiotics. Two deaths occurred in the low-risk patients: 1 non-cardiac death and 1 SCD due to asystole.
Conclusion
The practice-based risk stratification supported an ICD implantation in up to 5% of sarcoidosis patients screened for CS. Sustained VA occurred in 20% of ICD patients.Early detection of important arrhythmias with an ILR can optimize risk assessment for SCD in CS.
Practise-based risk stratification
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Bakker
- St Antonius Hospital, Cardiology, Nieuwegein, Netherlands (The)
| | - H Mathijssen
- St Antonius Hospital, Cardiology, Nieuwegein, Netherlands (The)
| | - J Balt
- St Antonius Hospital, Cardiology, Nieuwegein, Netherlands (The)
| | - V.F Van Dijk
- St Antonius Hospital, Cardiology, Nieuwegein, Netherlands (The)
| | - M Veltkamp
- St Antonius Hospital, Pulmonology, Nieuwegein, Netherlands (The)
| | - M Swaans
- St Antonius Hospital, Cardiology, Nieuwegein, Netherlands (The)
| | - F Akdim
- St Antonius Hospital, Cardiology, Nieuwegein, Netherlands (The)
| | - J.C Grutters
- St Antonius Hospital, Pulmonology, Nieuwegein, Netherlands (The)
| | - M.C Post
- St Antonius Hospital, Cardiology, Nieuwegein, Netherlands (The)
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11
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Abstract
E-health offers great potential in the field of traumatic stress to deliver training, assessment, prevention, and treatment of adverse outcomes after trauma worldwide. In order to encourage research on E-health applications in the field of traumatic stress, this current special issue of the European Journal of Psychotraumatology presents a series of papers divided into three emergent topics: I) development of digital interventions, II) the use of digital interventions to foster self-management and deliver therapy, and III) digital methods to improve prediction, assessment, and monitoring of post-trauma outcomes. These studies show acceptance of the tools by various end-user groups and improvements of current research and clinical practices, but also areas for improvement regarding the development process and making even better use of technological capabilities of E-Health. We propose three general themes to accelerate the quality of e-Health interventions and studies in this area in the coming years: optimizing user engagement and adherence, conducting more (innovative) research, and increasing implementation and dissemination activities. This issue appears in the midst of the COVID-19 pandemic. It is exactly at times like these that we need effective online interventions and we see an enormous increase in the use of e-Health. We hope this issue will contribute to help those affected and to serve the community worldwide.
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Affiliation(s)
- Anne Bakker
- Department of Psychiatry, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Heleen Riper
- Clinical, Neuro and Developmental Psychology, Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Miranda Olff
- Department of Psychiatry, Amsterdam Neuroscience Research Institute & Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,ARQ National Psychotrauma Centre, Diemen, the Netherlands
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12
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Amirjalayer S, Bakker A, Freitag M, Glorius F, Fuchs H. Kooperative Zusammenarbeit von N‐heterocyclischen Carbenen auf einer Goldoberfläche. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Saeed Amirjalayer
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
- Center for Multiscale Theory and Computation Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Anne Bakker
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
| | - Matthias Freitag
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Harald Fuchs
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
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13
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Ren J, Freitag M, Schwermann C, Bakker A, Amirjalayer S, Rühling A, Gao HY, Doltsinis NL, Glorius F, Fuchs H. A Unidirectional Surface-Anchored N-Heterocyclic Carbene Rotor. Nano Lett 2020; 20:5922-5928. [PMID: 32510964 DOI: 10.1021/acs.nanolett.0c01884] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A molecular rotor based on N-heterocyclic carbenes (NHCs) has been rationally designed following theoretical predictions, experimentally realized, and characterized. Utilizing the structural tunability of NHCs, a computational screening protocol was first applied to identify NHCs with asymmetric rotational potentials on a surface as a prerequisite for unidirectional molecular rotors. Suitable candidates were then synthesized and studied using scanning tunneling microscopy/spectroscopy (STM/STS), analytical theoretical models, and molecular dynamics simulations. For our best NHC rotor featuring a mesityl N substituent on one side and a chiral naphthylethyl substituent on the other, unidirectional rotation is driven by inelastic tunneling of electrons from the NHC to the STM tip. While electrons preferentially tunnel through the mesityl N substituent, the chiral naphthylethyl substituent controls the directionality. Such NHC-based surface rotors open up new possibilities for the design and construction of functionalized molecular systems with high catalytic applicability and superior stability compared with other classes of molecular rotors.
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Affiliation(s)
- Jindong Ren
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
| | - Matthias Freitag
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Christian Schwermann
- Institute of Solid State Theory and Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Anne Bakker
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
| | - Saeed Amirjalayer
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
- Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Andreas Rühling
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Hong-Ying Gao
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Nikos L Doltsinis
- Institute of Solid State Theory and Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Harald Fuchs
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing 210094, P. R. China
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14
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Bakker A, Freitag M, Kolodzeiski E, Bellotti P, Timmer A, Ren J, Schulze Lammers B, Moock D, Roesky HW, Mönig H, Amirjalayer S, Fuchs H, Glorius F. An Electron-Rich Cyclic (Alkyl)(Amino)Carbene on Au(111), Ag(111), and Cu(111) Surfaces. Angew Chem Int Ed Engl 2020; 59:13643-13646. [PMID: 32267051 PMCID: PMC7496406 DOI: 10.1002/anie.201915618] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 04/07/2020] [Indexed: 11/24/2022]
Abstract
The structural properties and binding motif of a strongly σ-electron-donating N-heterocyclic carbene have been investigated on different transition-metal surfaces. The examined cyclic (alkyl)(amino)carbene (CAAC) was found to be mobile on surfaces, and molecular islands with short-range order could be found at high coverage. A combination of scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT) calculations highlights how CAACs bind to the surface, which is of tremendous importance to gain an understanding of heterogeneous catalysts bearing CAACs as ligands.
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Affiliation(s)
- Anne Bakker
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
| | - Matthias Freitag
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
| | - Elena Kolodzeiski
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
- Center for Multiscale Theory and ComputationWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
| | - Peter Bellotti
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
| | - Alexander Timmer
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
- nanoAnalytics GmbHHeisenbergstrasse 1148149MünsterGermany
| | - Jindong Ren
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
| | - Bertram Schulze Lammers
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
| | - Daniel Moock
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
| | - Herbert W. Roesky
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstrasse 437077GöttingenGermany
| | - Harry Mönig
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
| | - Saeed Amirjalayer
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
- Center for Multiscale Theory and ComputationWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
| | - Harald Fuchs
- Physikalisches InstitutWestfälische Wilhelms-UniversitätWilhelm-Klemm-Strasse 1048149MünsterGermany
- Center for NanotechnologyHeisenbergstrasse 1148149MünsterGermany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
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15
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Karsten MDA, Wekker V, Bakker A, Groen H, Olff M, Hoek A, Laan ETM, Roseboom TJ. Sexual function and pelvic floor activity in women: the role of traumatic events and PTSD symptoms. Eur J Psychotraumatol 2020; 11:1764246. [PMID: 33029306 PMCID: PMC7473031 DOI: 10.1080/20008198.2020.1764246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Traumatic sexual experiences can negatively affect sexual functioning and increase pelvic floor activity in women, especially when post-traumatic stress disorder (PTSD) is developed. However, little is known about the effect of other types of interpersonal and non-interpersonal, traumatic experiences on sexual function and pelvic floor overactivity. OBJECTIVE The aim of this study was to examine the effects of lifetime traumatic experiences and subsequent PTSD symptoms on sexual function and pelvic floor activity and to investigate whether the effects differ for interpersonal and non-interpersonal trauma. METHODS Women (N=82) with obesity and a history of infertility, participating in a follow-up study of an RCT investigating a lifestyle intervention programme, completed questionnaires on lifetime exposure to traumatic events (LEC-5), PTSD symptoms (PC-PTSD-5), sexual function (MFSQ) and pelvic floor activity (AOPFS-SV). RESULTS A large majority of women (85%) reported exposure to at least one traumatic event during their lifetime. Sexual function and pelvic floor activity did not differ between women who experienced non-interpersonal or interpersonal (including sexual) trauma and those who did not experience traumatic events during their lifetime. Women who had developed PTSD symptoms, however, did have higher pelvic floor activity, but sexual function was not affected. Women with a positive screen for PTSD had the highest pelvic floor activity score, and individual PTSD symptoms nightmares and hypervigilance were associated with significantly higher pelvic floor activity scores. CONCLUSION Trauma exposure is associated with pelvic floor overactivity in women with a positive screen for PTSD, such that pelvic floor overactivity is more severe with greater PTSD severity. These findings suggest that the development of PTSD after interpersonal trauma is pivotal in this association. Sexual function was unrelated to trauma exposure and pelvic floor function, perhaps related to the fact that the interpersonal trauma events reported in this study were mainly non-sexual.
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Affiliation(s)
- Matty D A Karsten
- Department of Obstetrics and Gynaecology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands.,Department of Obstetrics and Gynaecology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Public Health Research Institute, Amsterdam UMC, Amsterdam, The Netherlands
| | - Vincent Wekker
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Public Health Research Institute, Amsterdam UMC, Amsterdam, The Netherlands
| | - Anne Bakker
- Amsterdam Public Health Research Institute, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Psychiatry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Henk Groen
- Department of Epidemiology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Miranda Olff
- Amsterdam Public Health Research Institute, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Psychiatry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,ARQ National Psychotrauma Centre, Diemen, The Netherlands.,Amsterdam Neuroscience Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Annemieke Hoek
- Department of Obstetrics and Gynaecology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Ellen T M Laan
- Department of Sexology and Psychosomatic Gynaecology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Tessa J Roseboom
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Public Health Research Institute, Amsterdam UMC, Amsterdam, The Netherlands
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16
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Bakker A, Freitag M, Kolodzeiski E, Bellotti P, Timmer A, Ren J, Schulze Lammers B, Moock D, Roesky HW, Mönig H, Amirjalayer S, Fuchs H, Glorius F. Ein elektronenreiches cyclisches (Alkyl)(amino)carben auf Au(111)‐, Ag(111)‐ und Cu(111)‐Oberflächen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915618] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Anne Bakker
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
| | - Matthias Freitag
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Elena Kolodzeiski
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
- Center for Multiscale Theory and Computation Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Peter Bellotti
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Alexander Timmer
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
- nanoAnalytics GmbH Heisenbergstraße 11 48149 Münster Deutschland
| | - Jindong Ren
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
| | - Bertram Schulze Lammers
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
| | - Daniel Moock
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Herbert W. Roesky
- Institut für Anorganische Chemie Georg-August-Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
| | - Harry Mönig
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
| | - Saeed Amirjalayer
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
- Center for Multiscale Theory and Computation Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Harald Fuchs
- Physikalisches Institut Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
- Center for Nanotechnology Heisenbergstraße 11 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
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17
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Hinault T, Kraut M, Bakker A, Dagher A, Courtney SM. Disrupted Neural Synchrony Mediates the Relationship between White Matter Integrity and Cognitive Performance in Older Adults. Cereb Cortex 2020; 30:5570-5582. [DOI: 10.1093/cercor/bhaa141] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/14/2020] [Accepted: 05/06/2020] [Indexed: 12/16/2022] Open
Abstract
Abstract
Our main goal was to determine the influence of white matter integrity on the dynamic coupling between brain regions and the individual variability of cognitive performance in older adults. Electroencephalography was recorded while participants performed a task specifically designed to engage working memory and inhibitory processes, and the associations among functional activity, structural integrity, and cognitive performance were assessed. We found that the association between white matter microstructural integrity and cognitive functioning with aging is mediated by time-varying alpha and gamma phase-locking value. Specifically, better preservation of the inferior fronto-occipital fasciculus in older individuals drives faster task-related modulations of alpha and gamma long-range phase-locking value between the inferior frontal gyrus and occipital lobe and lower local phase-amplitude coupling in occipital lobes, which in turn drives better cognitive control performance. Our results help delineate the role of individual variability of white matter microstructure in dynamic synchrony and cognitive performance during normal aging.
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Affiliation(s)
- T Hinault
- U1077 INSERM-EPHE-UNICAEN, Caen, 14000, France
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - M Kraut
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - A Bakker
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
- F.M. Kirby Research Center, Kennedy Krieger Institute, Baltimore, MD 21205, USA
| | - A Dagher
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montréal QC, H3A 2B4, Canada
| | - S M Courtney
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, 21218, USA
- F.M. Kirby Research Center, Kennedy Krieger Institute, Baltimore, MD 21205, USA
- Department of Neuroscience, Johns Hopkins University, Baltimore, MD 21205, USA
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18
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Habes EV, Jepma P, Parlevliet JL, Bakker A, Buurman BM. Video-based tools to enhance nurses' geriatric knowledge: A development and pilot study. Nurse Educ Today 2020; 90:104425. [PMID: 32311666 DOI: 10.1016/j.nedt.2020.104425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 01/15/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The need for health care professionals with geriatric knowledge is expected to increase due to aging of society. Educational tools that fit the specific learning styles of nurses and nursing students might be useful for this. Serioussoap.nl (available in Dutch and English) is an educational tool that integrates video-based gaming and storytelling, and it might be an effective way to improve the geriatric knowledge of nurses or nursing students. OBJECTIVES To investigate the effect of Serioussoap.nl on the geriatric knowledge of nurses and nursing students, and to evaluate its usability. DESIGN We conducted a development and an explorative pilot study, using a pretest posttest quantitative design to investigate the effect of Serioussoap.nl on geriatric knowledge. A qualitative approach was used to evaluate its usability. PARTICIPANTS AND SETTING Three vocational nursing schools (n = 119 second/third year students), one baccalaureate nursing university (n = 77 first year vocational nurses) and one home-care organization (n = 44 vocational nurses) in the Netherlands participated in the quantitative study, and 94 vocational students participated in the qualitative study. METHODS We measured the effect on geriatric knowledge with the Knowledge of Older People Questionnaire (KOP-Q, score 0-30). The qualitative study included observations of 94 participants while they played Serioussoap.nl, four semi-structured focus groups and eleven individual interviews. RESULTS The study demonstrated a significant increase of geriatric knowledge of 7.8% (+2.3 score on the KOP-Q, 95% Confidence Interval (1.4-3.2, p < 0.001). The qualitative data showed that Serioussoap.nl contributed to the reflective learning-style and enhanced meaningful learning. CONCLUSION Serioussoap.nl increased the students' geriatric knowledge and was perceived as a suitable and effective educational tool for vocational nursing students and nurses.
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Affiliation(s)
- E V Habes
- Faculty of Health Care, University of Applied Sciences Utrecht, Utrecht, the Netherlands.
| | - P Jepma
- ACHIEVE Centre for Applied Research, Faculty of Health, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands.
| | - J L Parlevliet
- Faculty of Health Care, University of Applied Sciences Utrecht, Utrecht, the Netherlands; Department of Internal Medicine, Section of Geriatric Medicine, Amsterdam University Medical Center, Amsterdam, the Netherlands.
| | - A Bakker
- Faculty of Nursing, MBO College Almere - ROC van Flevoland, Almere, the Netherlands.
| | - B M Buurman
- Faculty of Health Care, University of Applied Sciences Utrecht, Utrecht, the Netherlands; Department of Internal Medicine, Section of Geriatric Medicine, Amsterdam University Medical Center, Amsterdam, the Netherlands.
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19
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Suurmond J, Bakker A, Van Loey N. Psychological distress in ethnic minority parents of preschool children with burns. Burns 2020; 46:407-415. [DOI: 10.1016/j.burns.2019.07.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 07/05/2019] [Accepted: 07/27/2019] [Indexed: 10/26/2022]
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20
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Egberts MR, Engelhard IM, Schoot RVD, Bakker A, Geenen R, van der Heijden PGM, Van Loey NEE. Mothers' emotions after pediatric burn injury: Longitudinal associations with posttraumatic stress and depressive symptoms 18 months postburn. J Affect Disord 2020; 263:463-471. [PMID: 31969279 DOI: 10.1016/j.jad.2019.11.140] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/30/2019] [Accepted: 11/29/2019] [Indexed: 01/12/2023]
Abstract
BACKGROUND Various emotions are implicated in posttraumatic stress disorder (PTSD). Longitudinal studies examining temporal associations between emotions and posttraumatic stress may reveal who is at risk of chronic psychological problems. This study examined the longitudinal relationships of mothers' trauma-related emotions with posttraumatic stress and depressive symptoms after pediatric burn injury. METHODS Data from two cohort studies were used (n = 296). Mothers reported the intensity of burn-related emotions within the first month (T1) and 12 months postburn (T2). The Impact of Event Scale (IES) and the Hospital and Anxiety Depression Scale (HADS-D; depression subscale) were administered at T1 and 18 months postburn (T3). RESULTS Based on two exploratory factor analyses, emotion variables were combined into acute and long-term basic emotions (fear, sadness, horror, anger) and self-conscious emotions (guilt, shame). The path model showed a positive relationship between acute and long-term basic emotions. Higher long-term basic emotions were related to persistence of posttraumatic stress and depressive symptoms. Acute self-conscious emotions showed associations with posttraumatic stress and depressive symptoms at T1 and were longitudinally related to depressive, but not posttraumatic stress, symptoms. LIMITATIONS The posttraumatic stress measure was not based on DSM-5 PTSD criteria and results require replication using these criteria. CONCLUSIONS This study suggests that mothers' acute self-conscious and long-term basic emotions in relation to their child's burn injury are involved in the development of posttraumatic stress and depressive symptoms. Clinically, assessing and monitoring parents' early posttraumatic stress, depressive symptoms and burn-related emotions may be useful to identify parents at risk.
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Affiliation(s)
- Marthe R Egberts
- Association of Dutch Burn Centres, Beverwijk, the Netherlands; Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands; Department of Methods and Statistics, Utrecht University, Utrecht, the Netherlands.
| | - Iris M Engelhard
- Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands
| | - Rens van de Schoot
- Department of Methods and Statistics, Utrecht University, Utrecht, the Netherlands; Optentia Research Program, Faculty of Humanities, North-West University, Vanderbijlpark, South Africa
| | - Anne Bakker
- Amsterdam UMC, University of Amsterdam, Department of Psychiatry, research institute(s), Amsterdam, the Netherlands
| | - Rinie Geenen
- Department of Psychology, Utrecht University, Utrecht, the Netherlands
| | - Peter G M van der Heijden
- Department of Methods and Statistics, Utrecht University, Utrecht, the Netherlands; S3RI, University of Southampton, Southampton, United Kingdom
| | - Nancy E E Van Loey
- Association of Dutch Burn Centres, Beverwijk, the Netherlands; Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands
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21
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van Buschbach S, van der Meer CAI, Dijkman L, Olff M, Bakker A. Web-Based Peer Support Education Program for Health Care Professionals. Jt Comm J Qual Patient Saf 2020; 46:227-231. [PMID: 32008958 DOI: 10.1016/j.jcjq.2019.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 12/23/2019] [Accepted: 12/30/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND Health care professionals can routinely face potential critical incidents in the workplace, which can cause high levels of occupational distress and mental health problems. Peer support, in which a trained colleague provides psychosocial support after a work-related critical incident, is an early intervention strategy to support health care professionals. This study describes the development and evaluation of an innovative new online program to educate peer supporters. METHODS An interactive Web-based peer support education program (e-learning Peer Support) was developed to teach health care professionals the theory of peer support in preparation for face-to-face training (hybrid learning). User acceptance was determined with a 21-item online survey and technical user data. RESULTS Forty-four health care professionals completed the e-learning Peer Support and the online evaluation survey. Participants were nurses (68.2%), physicians (18.2%), residents (6.8%), and staff (6.8%). The e-learning was well received and positively evaluated with regard to all studied indicators of acceptance, including perceived usefulness, ease of use, actual use, and effectivity. All participants would recommend the e-learning to future trainees. CONCLUSION The e-learning is a valuable addition to the theoretical peer support training curriculum. Future steps include implementing the e-learning as a yearly continuing education meeting, as a clinical lecture, or as part of the standard curriculum for health care professionals in medical training. Developments like this e-learning may contribute to a standardized training method and, eventually, the implementation of peer support programs.
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22
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Olff M, Bakker A, Frewen P, Aakvaag H, Ajdukovic D, Brewer D, Elmore Borbon DL, Cloitre M, Hyland P, Kassam-Adams N, Knefel M, Lanza JA, Lueger-Schuster B, Nickerson A, Oe M, Pfaltz MC, Salgado C, Seedat S, Wagner A, Schnyder U. Screening for consequences of trauma - an update on the global collaboration on traumatic stress. Eur J Psychotraumatol 2020; 11:1752504. [PMID: 32489523 PMCID: PMC7241533 DOI: 10.1080/20008198.2020.1752504] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
This letter provides an update on the activities of "The Global Collaboration on Traumatic Stress" (GC-TS) as first described by Schnyder et al. in 2017. It presents in further detail the projects of the first theme, in particular the development of and initial data on the Global Psychotrauma Screen (GPS), a brief instrument designed to screen for the wide range of potential outcomes of trauma. English language data and ongoing studies in several languages provide a first indication that the GPS is a feasible, reliable and valid tool, a tool that may be very useful in the current pandemic of the coronavirus disease 2019 (COVID-19). Further multi-language and cross-cultural validation is needed. Since the start of the GC-TS, new themes have been introduced to focus on in the coming years: a) Forcibly displaced persons, b) Global prevalence of stress and trauma related disorders, c) Socio-emotional development across cultures, and d) Collaborating to make traumatic stress research data "FAIR". The most recent theme added is that of Global crises, currently focusing on COVID-19-related projects.
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Affiliation(s)
- Miranda Olff
- Department of Psychiatry, Amsterdam Neuroscience & Public Health, Amsterdam UMC, Amsterdam, The Netherlands.,ARQ National Psychotrauma Centre, Diemen, The Netherlands
| | - Anne Bakker
- Department of Psychiatry, Amsterdam UMC, Amsterdam, The Netherlands
| | - Paul Frewen
- Department of Psychiatry, Western University, London, Canada
| | - Helene Aakvaag
- Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway
| | - Dean Ajdukovic
- Department of Psychology, Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | - Douglas Brewer
- Ramsay Health Care, The Hollywood Clinic, Perth, Australia
| | - Diane L Elmore Borbon
- Policy Program, UCLA-Duke University National Center for Child Traumatic Stress, Washington, DC, USA
| | - Marylène Cloitre
- National Center for PTSD Dissemination and Training Division, Department of Psychiatry and Behavioral Sciences, VA Palo Alto Health Care System, Stanford University, Menlo Park, CA, USA
| | - Philip Hyland
- Department of Psychology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Nancy Kassam-Adams
- Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Center for Pediatric Traumatic Stress, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Juliana A Lanza
- Traumatic Stress Unit, Psychiatric Emergency Hospital, Buenos City, Argentina.,Human Factors, Emergency Medical Care System (SAME), Buenos Aires City, Argentina
| | | | | | - Misari Oe
- Department of Neuropsychiatry, Kurume University School of Medicine, Kurume, Japan
| | - Monique C Pfaltz
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Carolina Salgado
- Department of Psychiatry, Medical School of Universidad Catolica Del Maule, Chile
| | - Soraya Seedat
- Department of Psychiatry, Faculty of Medicine & Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Anne Wagner
- Department of Psychology, Ryerson University, Toronto, Canada and Remedy, Toronto, Canada
| | - Ulrich Schnyder
- Department of Psychiatry, Amsterdam Neuroscience & Public Health, Amsterdam UMC, Amsterdam, The Netherlands.,ARQ National Psychotrauma Centre, Diemen, The Netherlands.,Department of Psychiatry, Amsterdam UMC, Amsterdam, The Netherlands.,Department of Psychiatry, Western University, London, Canada.,Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway.,Department of Psychology, Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia.,Ramsay Health Care, The Hollywood Clinic, Perth, Australia.,Policy Program, UCLA-Duke University National Center for Child Traumatic Stress, Washington, DC, USA.,National Center for PTSD Dissemination and Training Division, Department of Psychiatry and Behavioral Sciences, VA Palo Alto Health Care System, Stanford University, Menlo Park, CA, USA.,Department of Psychology, Maynooth University, Maynooth, Co. Kildare, Ireland.,Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Center for Pediatric Traumatic Stress, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,University of Vienna, Vienna, Austria.,Traumatic Stress Unit, Psychiatric Emergency Hospital, Buenos City, Argentina.,Human Factors, Emergency Medical Care System (SAME), Buenos Aires City, Argentina.,Faculty of Psychology, Clinical Psychology, University of Vienna, Vienna, Austria.,UNSW School of Psychology, UNSW Sydney, Australia.,Department of Neuropsychiatry, Kurume University School of Medicine, Kurume, Japan.,Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Zurich, Switzerland.,Department of Psychiatry, Medical School of Universidad Catolica Del Maule, Chile.,Department of Psychiatry, Faculty of Medicine & Health Sciences, Stellenbosch University, Cape Town, South Africa.,Department of Psychology, Ryerson University, Toronto, Canada and Remedy, Toronto, Canada.,Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
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23
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van der Meer CAI, Bakker A, van Zuiden M, Lok A, Olff M. Help in hand after traumatic events: a randomized controlled trial in health care professionals on the efficacy, usability, and user satisfaction of a self-help app to reduce trauma-related symptoms. Eur J Psychotraumatol 2020; 11:1717155. [PMID: 32284818 PMCID: PMC7144205 DOI: 10.1080/20008198.2020.1717155] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 12/07/2019] [Accepted: 12/31/2019] [Indexed: 01/14/2023] Open
Abstract
Background: Despite the fact that many people are affected by trauma and suffer from posttraumatic stress symptoms (PTSS) there is a lack of easy-accessible interventions to self-manage these symptoms. Mobile apps may deliver low-intensity self-help to reduce trauma-related symptoms and empower individuals following trauma, such as high-risk professionals who are regularly exposed to potentially traumatic events. In this randomized controlled trial, we examined the efficacy, and evaluated the usability and user satisfaction of the app 'SUPPORT Coach' as a self-help tool to reduce trauma-related symptoms. Methods: Health care professionals (e.g. nurses, physicians, paramedics and ambulance drivers) completed an online screening on PTSS (T0). They were randomized when at least one PTSS was reported, either to the intervention (1 month unlimited access to SUPPORT Coach) or control condition (no access to SUPPORT Coach). Self-reported PTSS, negative trauma-related cognitions, psychological resilience, and social support were assessed online at baseline (T1), post-condition (T2), and 1 month follow-up (T3). Results: Of the 1175 participants screened, 287 (24.4%) indicated at least one posttraumatic stress symptom and were randomized. The majority of intervention condition participants (83%, n = 103) used SUPPORT Coach; they were slightly to moderately satisfied with the app. There was no significant group difference in change in PTSS and social support after one-month app usage. However, the intervention condition showed a greater decline in negative trauma-related cognitions at T2 and T3, and a larger increase in psychological resilience at T3 than the control condition. Conclusions: SUPPORT Coach without guidance could potentially provide easy-accessible self-help to diminish negative trauma-related cognitions, and strengthen resilience in coping with adversities. However, since the attrition rate was substantially higher in the intervention than in control condition, our findings should be interpreted with caution and warrant replication.
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Affiliation(s)
- Christianne A I van der Meer
- Amsterdam UMC, Department of Psychiatry, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Anne Bakker
- Amsterdam UMC, Department of Psychiatry, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Mirjam van Zuiden
- Amsterdam UMC, Department of Psychiatry, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Anja Lok
- Amsterdam UMC, Department of Psychiatry, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Miranda Olff
- Amsterdam UMC, Department of Psychiatry, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands.,ARQ National Psychotrauma Centre, Diemen, The Netherlands
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24
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Verma S, Gosline S, Peltonen S, Peltonen J, Soragni A, Wallace P, Le L, Topilko P, Gutmann D, Anastasaki C, Mattingly R, Serra E, Lee G, Knight P, LaRosa S, Bakker A, Blakeley J. LB1084 Developing uniform datasets for tissue based studies of cutaneous neurofibromas. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Boeschoten MA, Van der Aa N, Bakker A, Ter Heide FJJ, Hoofwijk MC, Jongedijk RA, Van Minnen A, Elzinga BM, Olff M. Development and Evaluation of the Dutch Clinician-Administered PTSD Scale for DSM-5 (CAPS-5). Eur J Psychotraumatol 2018; 9:1546085. [PMID: 30510643 PMCID: PMC6263102 DOI: 10.1080/20008198.2018.1546085] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/20/2018] [Indexed: 11/25/2022] Open
Abstract
Background: In 2013, the Clinician-Administered PTSD Scale, the golden standard to assess PTSD, was adapted to the DSM-5 (CAPS-5). Objective: This project aimed to develop a clinically relevant Dutch translation of the CAPS-5 and to investigate its psychometric properties. Method: We conducted a stepped translation including Delphi rounds with a crowd of 44 Dutch psychotrauma experts and five senior psychotrauma experts. Using partial crowd-translations, two professional translations and the official Dutch translation of the DSM-5, each senior expert aggregated one independent translation. Consensus was reached plenary. After back-translation, comparison with the original CAPS-5 and field testing, a last round with the senior experts resulted in the final version. After implementation clinicians conducted CAPS-5 interviews with 669 trauma-exposed individuals referred for specialized diagnostic assessment. Reliability of the Dutch CAPS-5 was investigated through internal consistency and interrater reliability analyses, and construct validity through confirmatory factor analysis (CFA). Results: CAPS-5 total severity score showed high internal consistency (α = .90) and interrater reliability (ICC = .98, 95% CI: .94-.99). CAPS-5 diagnosis showed modest interrater reliability (kappa = .59, 95% CI: .20-.98). CFA with alternative PTSD models revealed adequate support for the DSM-5 four-factor model, but a six-factor (Anhedonia) model fit the data best. Conclusions: The Dutch CAPS-5 is a carefully translated instrument with adequate psychometric properties. Current results add to the growing support for more refined (six and seven) factor models for DSM-5 PTSD indicating that the validity and clinical implications of these models should be objective of further research.
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Affiliation(s)
- Manon A. Boeschoten
- Foundation Centrum ‘45, Oegstgeest/Diemen, The Netherlands | Partner in Arq Psychotrauma Expert Group, Diemen, The Netherlands
| | - Niels Van der Aa
- Foundation Centrum ‘45, Oegstgeest/Diemen, The Netherlands | Partner in Arq Psychotrauma Expert Group, Diemen, The Netherlands
| | - Anne Bakker
- Department of Psychiatry, Academic Medical Center, Amsterdam, The Netherlands
| | - F. Jackie June Ter Heide
- Foundation Centrum ‘45, Oegstgeest/Diemen, The Netherlands | Partner in Arq Psychotrauma Expert Group, Diemen, The Netherlands
| | - Marthe C. Hoofwijk
- Foundation Centrum ‘45, Oegstgeest/Diemen, The Netherlands | Partner in Arq Psychotrauma Expert Group, Diemen, The Netherlands
- Psychotrauma Diagnosis Center, Diemen, The Netherlands | partner in Arq Psychotrauma Expert Group, Diemen, The Netherlands
| | - Ruud A. Jongedijk
- Foundation Centrum ‘45, Oegstgeest/Diemen, The Netherlands | Partner in Arq Psychotrauma Expert Group, Diemen, The Netherlands
- Arq Psychotrauma Expert Group, Diemen, The Netherlands
| | - Agnes Van Minnen
- PSYTREC, The Netherlands & Radboud University, Nijmegen, The Netherlands
| | - Bernet M. Elzinga
- Department of Clinical Psychology, Leiden University, Leiden, The Netherlands & Leiden Institute for Brain and Cognition, Leiden, The Netherlands
| | - Miranda Olff
- Department of Psychiatry, Academic Medical Center, Amsterdam, The Netherlands
- Arq Psychotrauma Expert Group, Diemen, The Netherlands
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26
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Schooneveldt G, Kok HP, Bakker A, Geijsen ED, Hulshof MCCM, Reijke TMD, Crezee J. The effect of air pockets in the urinary bladder on the temperature distribution during loco-regional hyperthermia treatment of bladder cancer patients. Int J Hyperthermia 2018; 35:441-449. [PMID: 30303415 DOI: 10.1080/02656736.2018.1506890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
PURPOSE Loco-regional hyperthermia combined with mitomycin C is used for treatment of nonmuscle invasive bladder cancer (NMIBC). Air pockets may be present in the bladder during treatment. The aim of this study is to quantify the effect of air pockets on the thermal dose of the bladder. METHODS We analysed 16 patients treated for NMIBC. Loco-regional hyperthermia was performed with the in-house developed 70 MHz AMC-4 hyperthermia device. We simulated treatments with the clinically applied device settings using Plan2Heat (developed in-house) including the air pockets delineated on CT scans made following treatment, and with the same volume filled with urine. Temperature distributions simulated with and without air pockets were compared. RESULTS The average air and fluid volumes in the bladder were 6.0 ml (range 0.8 - 19.3 ml) and 183 ml (range 47-322 ml), respectively. The effect of these air pockets varied strongly between patients. Averaged over all patients, the median bladder wall temperature (T50) remained unchanged when an air pocket was present. Temperature changes exceeded ±0.2 °C in, on average, 23% of the bladder wall volume (range 1.3-59%), in 6.0% (range 0.6-20%) changes exceeded ±0.5 °C and in 3.2% (range 0.0-7.4%) changes exceeded ±1.0 °C. There was no correlation between the differences in temperature and the air pocket or bladder volume. There was a positive correlation between air pocket surface and temperature heterogeneity. CONCLUSION Presence of air causes more heterogeneous bladder wall temperatures and lower T90, particularly for larger air pockets. The size of air pockets must therefore be minimized during bladder hyperthermia treatments.
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Affiliation(s)
- G Schooneveldt
- a Department of Radiation Oncology , Academic Medical Center , Amsterdam , The Netherlands
| | - H P Kok
- a Department of Radiation Oncology , Academic Medical Center , Amsterdam , The Netherlands
| | - A Bakker
- a Department of Radiation Oncology , Academic Medical Center , Amsterdam , The Netherlands
| | - E D Geijsen
- a Department of Radiation Oncology , Academic Medical Center , Amsterdam , The Netherlands
| | - M C C M Hulshof
- a Department of Radiation Oncology , Academic Medical Center , Amsterdam , The Netherlands
| | - T M de Reijke
- b Department of Urology , Academic Medical Center , Amsterdam , The Netherlands
| | - J Crezee
- a Department of Radiation Oncology , Academic Medical Center , Amsterdam , The Netherlands
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27
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Kok HP, Schooneveldt G, Bakker A, de Kroon-Oldenhof R, Korshuize-van Straten L, de Jong CE, Steggerda-Carvalho E, Geijsen ED, Stalpers LJA, Crezee J. Predictive value of simulated SAR and temperature for changes in measured temperature after phase-amplitude steering during locoregional hyperthermia treatments. Int J Hyperthermia 2018; 35:330-339. [DOI: 10.1080/02656736.2018.1500720] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- H. P. Kok
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - G. Schooneveldt
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - A. Bakker
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - R. de Kroon-Oldenhof
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - L. Korshuize-van Straten
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - C. E. de Jong
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - E. Steggerda-Carvalho
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - E. D. Geijsen
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - L. J. A. Stalpers
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - J. Crezee
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Bakker A, Timmer A, Kolodzeiski E, Freitag M, Gao HY, Mönig H, Amirjalayer S, Glorius F, Fuchs H. Elucidating the Binding Modes of N-Heterocyclic Carbenes on a Gold Surface. J Am Chem Soc 2018; 140:11889-11892. [DOI: 10.1021/jacs.8b06180] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anne Bakker
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
| | - Alexander Timmer
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
| | - Elena Kolodzeiski
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
- Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Matthias Freitag
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Hong Ying Gao
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
| | - Harry Mönig
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
| | - Saeed Amirjalayer
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
- Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Harald Fuchs
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany
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Ren J, Larkin E, Delaney C, Song Y, Jin X, Amirjalayer S, Bakker A, Du S, Gao H, Zhang YY, Draper SM, Fuchs H. Chemistry of 4-[(4-bromophenyl)ethynyl]pyridine at metal surfaces studied by STM. Chem Commun (Camb) 2018; 54:9305-9308. [PMID: 30069558 DOI: 10.1039/c8cc03986k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular architectures (Kagome networks, coordinated/covalent dimers and branched coordination chains) via self-assembly, Ullmann reaction and pyridine coordination of 4-[(4-bromophenyl)ethynyl]pyridine are found to be sensitive to the underlying metallic surfaces. The molecular species were characterised on the surface by low-temperature scanning tunnelling microscopy (LT-STM) at sub-molecular level.
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Affiliation(s)
- Jindong Ren
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany.
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30
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Lu HL, Cao Y, Qi J, Bakker A, Strassert CA, Lin X, Ernst KH, Du S, Fuchs H, Gao HJ. Modification of the Potential Landscape of Molecular Rotors on Au(111) by the Presence of an STM Tip. Nano Lett 2018; 18:4704-4709. [PMID: 29965769 DOI: 10.1021/acs.nanolett.8b01019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Molecular rotors on solid surfaces are fundamental components of molecular machines. No matter whether the rotation is activated by heat, electric field or light, it is determined by the intrinsic rotational potential landscape. Therefore, tuning the potential landscape is of great importance for future applications of controlled molecular rotors. Here, using scanning tunneling microscopy (STM), we demonstrate that both tip-molecule distance and sample bias can modify the rotational potential of molecular rotors. We achieve the potential energy difference variations of ∼0.3 meV/pm and ∼18 meV/V between two configurations of a molecular rotor, a tetra- tert-butyl nickel phthalocyanine molecule on Au(111) substrate. Further analysis indicates that the mechanism of modifying the rotational potential is a combination of the van der Waals interaction and the interaction between the molecular dipole and an electric field. This work provides insight into the methods used to modify the effective rotational potential energy of molecular rotors.
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Affiliation(s)
- Hong-Liang Lu
- Institute of Physics & University of Chinese Academy of Sciences , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Yun Cao
- Institute of Physics & University of Chinese Academy of Sciences , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Jing Qi
- Institute of Physics & University of Chinese Academy of Sciences , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Anne Bakker
- Physikalisches Institut , Westfälische Wilhelms-Universität & Center for Nanotechnology (CeNTech) , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany
| | - Cristian A Strassert
- Physikalisches Institut , Westfälische Wilhelms-Universität & Center for Nanotechnology (CeNTech) , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany
| | - Xiao Lin
- Institute of Physics & University of Chinese Academy of Sciences , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Karl-Heinz Ernst
- Nanoscale Materials Science , Empa, Swiss Federal Laboratories for Materials Testing and Research , Überlandstrasse 129 , CH-8600 Dübendorf , Switzerland
| | - Shixuan Du
- Institute of Physics & University of Chinese Academy of Sciences , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Harald Fuchs
- Physikalisches Institut , Westfälische Wilhelms-Universität & Center for Nanotechnology (CeNTech) , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany
| | - Hong-Jun Gao
- Institute of Physics & University of Chinese Academy of Sciences , Chinese Academy of Sciences , Beijing 100190 , P. R. China
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31
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Wilde S, Ma D, Koch T, Bakker A, Gonzalez-Abradelo D, Stegemann L, Daniliuc CG, Fuchs H, Gao H, Doltsinis NL, Duan L, Strassert CA. Toward Tunable Electroluminescent Devices by Correlating Function and Submolecular Structure in 3D Crystals, 2D-Confined Monolayers, and Dimers. ACS Appl Mater Interfaces 2018; 10:22460-22473. [PMID: 29931977 DOI: 10.1021/acsami.8b03528] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The synthesis of new Pt(II) complexes bearing tailored cyclometalated C^N*N^C luminophores is reported along with their photophysical properties. The emission of the monomeric species can be blue shifted upon formal isosteric replacement of two C-H units by N atoms at the two cyclometalating rings. Their remarkable stability upon sublimation was demonstrated by means of scanning tunneling microscopy, which also revealed a defined self-assembly behavior leading to supramolecular arrays, showing a 3-fold symmetry in 2D-confined monolayers. The supramolecular organization is driven by van der Waals interactions of the side chains and does not depend on the nature of the luminophores, as also observed in the crystalline phases showing no significant Pt-Pt interactions in 3D. Conversely, the luminescence properties in glassy matrices at 77 K and in amorphous solids are indicative of intermolecular interactions with sizable intermetallic coupling, which was demonstrated by reproducing the emission spectra of dimeric species by means of (TD)DFT calculations. The tendency toward aggregation was also traceable by cyclic voltammetry, whereas thermogravimetric analyses confirmed their stability. Solution-processed and vacuum-deposited OLED devices showed a concentration-dependent electroluminescence that red shifts with increasing doping ratios. Due to the stability of the complexes, solution-processed and vacuum-deposited devices showed identical electroluminescence spectra. Besides favoring aggregation, introduction of two N atoms has a detrimental effect on the device performance, due to the prolonged excited-state lifetimes favoring triplet-triplet annihilation.
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Affiliation(s)
- Sebastian Wilde
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , D-48149 Münster , Germany
| | - Dongxin Ma
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Tobias Koch
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation , Westfälische Wilhelms-Universität Münster , Wilhelm-Klemm-Strasse 10 , D-48149 Münster , Germany
| | - Anne Bakker
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , D-48149 Münster , Germany
| | - Dario Gonzalez-Abradelo
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , D-48149 Münster , Germany
| | - Linda Stegemann
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , D-48149 Münster , Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstrasse 40 , D-48149 Münster , Germany
| | - Harald Fuchs
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , D-48149 Münster , Germany
| | - Hongying Gao
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , D-48149 Münster , Germany
| | - Nikos L Doltsinis
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation , Westfälische Wilhelms-Universität Münster , Wilhelm-Klemm-Strasse 10 , D-48149 Münster , Germany
| | - Lian Duan
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Cristian A Strassert
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , D-48149 Münster , Germany
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Schotte R, Wagner K, Fatamawati C, Go D, Claassen Y, Bakker A, Spits H, Pos W. PO-402 Establishment of human monoclonal anti tumour antibodies with high affinity to CD9 using an in vitro B cell affinity maturation platform. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Bakker A, Siegel JA, Mendell MJ, Peccia J. Building and environmental factors that influence bacterial and fungal loading on air conditioning cooling coils. Indoor Air 2018; 28:689-696. [PMID: 29846963 DOI: 10.1111/ina.12474] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/08/2018] [Indexed: 06/08/2023]
Abstract
We investigated bacterial and fungal concentrations on cooling coils of commercial AC units and quantified associations between microbial loads and AC unit or building operational parameters. A field campaign was conducted to sample 25 AC units in the humid, subtropical climate of Southern CT, USA and 15 AC units in the hot-summer Mediterranean climate of Sacramento, CA, USA. Median concentrations (with interquartile range) of bacteria and fungi on the cooling coils were 1.2 × 107 (5.1 × 106 -3.9 × 107 ) cells/m2 and 7.6 × 105 (5.6 × 104 -4.4 × 106 ) spore equivalents (SE)/m2 , respectively. Concentrations varied among units with median unit concentrations ranging three orders of magnitude for bacteria and seven orders of magnitude for fungi. Controlled comparisons and multivariable regressions indicate that dominant factors associated with AC coil loading include the nominal efficiency of upstream filters (P = .008 for bacteria and P < .001 for fungi) and coil moisture, which was reflected in fungal loading differences between top and bottom halves of the AC coils in Southern CT (P = .05) and the dew points of the two climates considered (P = .04). Environmental and building characteristics explained 42% (P < .001) of bacterial concentration variability and 66% (P < .001) of fungal concentration variability among samples.
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Affiliation(s)
- A Bakker
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA
| | - J A Siegel
- Department of Civil Engineering, The University of Toronto, Toronto, ON, Canada
- Dalla Lana School of Public Health, The University of Toronto, Toronto, ON, Canada
| | - M J Mendell
- California Department of Public Health, Environmental Health Laboratory Branch, Richmond, CA, USA
| | - J Peccia
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA
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Abstract
OBJECTIVE The aim of this work was to investigate marker profiles for proposed anxiety subtypes in Parkinson disease (PD). METHODS We used the persistent anxiety, episodic anxiety, and avoidance behavior subscales of the Parkinson Anxiety Scale as dependent variables in multivariable linear regression analyses using a cross-sectional data set of 311 patients with PD. Independent variables consisted of a range of demographic, psychiatric, and disease-specific markers. RESULTS In the most parsimonious model of persistent anxiety, higher Hamilton Depression Rating Scale scores, a history of anxiety, fewer years of education, lower Mini-Mental State Examination scores, lower Lawton Instrumental Activities of Daily Living scores, female sex, and complications of therapy (higher Unified Parkinson Disease Rating Scale part IV scores) were all associated with more severe persistent anxiety. Markers associated with more severe episodic anxiety included PD-specific disturbances of activities of daily living, complications of therapy, higher Hamilton Depression Rating Scale scores, female sex, and a history of anxiety. Finally, higher Hamilton Depression Rating Scale scores, a history of anxiety, complications of therapy, and longer disease duration were associated with avoidance behavior. After excluding clinically depressed patients with PD, disease severity and longer disease duration were significantly associated with episodic anxiety, but not with persistent anxiety. CONCLUSION Persistent anxiety is mainly influenced by nonspecific markers, while episodic anxiety seems to be more PD-specific compared to persistent anxiety and may be more situational or contextual. These results provide support for possible distinct underlying constructs for anxiety subtypes in PD.
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Affiliation(s)
- Martinus P. G. Broen
- Department of Neurology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - A. F. G. Leentjens
- Department of Psychiatry, Maastricht University Medical Center, Maastricht, the Netherlands
| | - J. T. Hinkle
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A. J. H. Moonen
- Department of Psychiatry, Maastricht University Medical Center, Maastricht, the Netherlands
| | - M. L. Kuijf
- Department of Neurology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - N. M. Fischer
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - K. Perepezko
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A. Bakker
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - G. M. Pontone
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Nijdam MJ, van der Meer CAI, van Zuiden M, Dashtgard P, Medema D, Qing Y, Zhutovsky P, Bakker A, Olff M. Turning wounds into wisdom: Posttraumatic growth over the course of two types of trauma-focused psychotherapy in patients with PTSD. J Affect Disord 2018; 227:424-431. [PMID: 29154159 DOI: 10.1016/j.jad.2017.11.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/06/2017] [Accepted: 11/08/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Treatment studies in PTSD patients have mostly focused on adverse psychopathological outcomes whereas positive outcomes have received less attention. Objectives of this study were to investigate posttraumatic growth in response to two different psychotherapies, to examine the relationship between symptom improvement and growth, and to determine if posttraumatic growth predicted treatment response. METHODS Outpatients diagnosed with PTSD after various types of trauma (n = 116) participated in a randomized controlled trial that compared Brief Eclectic Psychotherapy for PTSD (BEP) and Eye Movement Desensitization and Reprocessing therapy (EMDR). Posttraumatic growth was assessed pre- and post-treatment. PTSD severity was measured weekly. RESULTS Posttraumatic growth scores significantly increased after trauma-focused psychotherapy, as well as scores in the subdomains personal strength, new possibilities, relating to others, and appreciation of life. Greater self-reported and clinician-rated PTSD decline was significantly related to greater increase in posttraumatic growth. No changes were found between treatment conditions, except for a stronger correlation between PTSD symptom decrease and increase in relating to others in BEP as compared to EMDR. No predictive effects were found. LIMITATIONS We were unable to control for time effects because for ethical reasons, no control group not receiving treatment was included, and the stability of the changes could not be determined. CONCLUSIONS Findings indicate that increases in posttraumatic growth accompany symptom decline in EMDR and BEP, and that these changes occur independent of whether the treatment specifically addresses posttraumatic growth as therapeutic process. Further research is encouraged to disentangle the contribution of therapeutic elements to growth.
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Affiliation(s)
- Mirjam J Nijdam
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands; Arq Psychotrauma Expert Group, Diemen, The Netherlands.
| | - Christianne A I van der Meer
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
| | - Mirjam van Zuiden
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
| | - Pasha Dashtgard
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
| | - Daniël Medema
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands; Arq Psychotrauma Expert Group, Diemen, The Netherlands
| | - Yulan Qing
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
| | - Paul Zhutovsky
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
| | - Anne Bakker
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
| | - Miranda Olff
- Center for Psychological Trauma, Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands; Arq Psychotrauma Expert Group, Diemen, The Netherlands
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Kuhn E, van der Meer C, Owen JE, Hoffman JE, Cash R, Carrese P, Olff M, Bakker A, Schellong J, Lorenz P, Schopp M, Rau H, Weidner K, Arnberg FK, Cernvall M, Iversen T. PTSD Coach around the world. Mhealth 2018; 4:15. [PMID: 29963560 PMCID: PMC5994444 DOI: 10.21037/mhealth.2018.05.01] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/03/2018] [Indexed: 11/06/2022] Open
Abstract
Posttraumatic stress disorder (PTSD) is a global public health problem. Unfortunately, many individuals with PTSD do not receive professional care due to a lack of available providers, stigma about mental illness, and other concerns. Technology-based interventions, including mobile phone applications (apps) may be a viable means of surmounting such barriers and reaching and helping those in need. Given this potential, in 2011 the U.S Veterans Affairs National Center for PTSD released PTSD Coach, a mobile app intended to provide psycho-education and self-management tools for trauma survivors with PTSD symptoms. Emerging research on PTSD Coach demonstrates high user satisfaction, feasibility, and improvement in PTSD symptoms and other psychosocial outcomes. A model of openly sharing the app's source code and content has resulted in versions being created by individuals in six other countries: Australia, Canada, The Netherlands, Germany, Sweden, and Denmark. These versions are described, highlighting their significant adaptations, enhancements, and expansions to the original PTSD Coach app as well as emerging research on them. It is clear that the sharing of app source code and content has benefited this emerging PTSD Coach community, as well as the populations they are targeting. Despite this success, challenges remain especially reaching trauma survivors in areas where few or no other mental health resources exist.
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Affiliation(s)
- Eric Kuhn
- VA National Center for PTSD, VA Palo Alto Healthcare System, Menlo Park, CA, USA
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Christianne van der Meer
- Academic Medical Centre, Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands
| | - Jason E. Owen
- VA National Center for PTSD, VA Palo Alto Healthcare System, Menlo Park, CA, USA
| | - Julia E. Hoffman
- VA National Center for PTSD, VA Palo Alto Healthcare System, Menlo Park, CA, USA
| | - Richard Cash
- Phoenix Australia, Department of Psychiatry, the University of Melbourne, Melbourne, Australia
| | | | - Miranda Olff
- Academic Medical Centre, Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands
- Arq Psychotrauma Expert Group, Diemen, The Netherlands
| | - Anne Bakker
- Academic Medical Centre, Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands
| | - Julia Schellong
- Department of Psychotherapy and Psychosomatic Medicine, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Patrick Lorenz
- Department of Psychotherapy and Psychosomatic Medicine, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Matthias Schopp
- Department of Computer Science, Universität der Bundeswehr München, Munich, Germany
| | - Heinrich Rau
- German Armed Forces Center for Military Mental Health (Psychotraumazentrum), Berlin, Germany
| | - Kerstin Weidner
- Department of Psychotherapy and Psychosomatic Medicine, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Filip K. Arnberg
- National Centre for Disaster Psychiatry, Department of Neuroscience, Psychiatry, Uppsala University, Uppsala, Sweden
- Stress Research Institute, Stockholm University, Stockholm, Sweden
| | - Martin Cernvall
- National Centre for Disaster Psychiatry, Department of Neuroscience, Psychiatry, Uppsala University, Uppsala, Sweden
| | - Thomas Iversen
- Department of Psychology, Aarhus University, Aarhus, Denmark
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van der Meer CAI, Te Brake H, van der Aa N, Dashtgard P, Bakker A, Olff M. Assessing Psychological Resilience: Development and Psychometric Properties of the English and Dutch Version of the Resilience Evaluation Scale (RES). Front Psychiatry 2018; 9:169. [PMID: 29867601 PMCID: PMC5968386 DOI: 10.3389/fpsyt.2018.00169] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 04/12/2018] [Indexed: 12/15/2022] Open
Abstract
Background: Psychological resilience is a distinct factor that affects mental health outcomes after adversities. This study describes the development, validity and measurement invariance (MI) of a Dutch and English scale on psychological resilience, called the Resilience Evaluation Scale (RES). Methods: Separate online surveys with the Dutch and English version of the RES and hypothesized related measures were distributed in a Dutch- and English-speaking group, both drawn from the general population. Results: Exploratory factor analysis, using data from 522 respondents (n = 296 Dutch, n = 226 English), yielded a two-factor structure for the final 9-item RES. The factors reflected the hypothesized underlying constructs of psychological resilience: self-confidence and self-efficacy. The items and constructs of psychological resilience as measured by the RES were interpreted and conceptualized in the same way by both language groups, with the exception of one item. The RES showed good convergent validity and good internal consistency. Conclusions: The current study establishes sound psychometric properties of a new, brief, and freely available scale on psychological resilience. This study contributes to the identification and measurement of psychological resilience after adversities. The final 9-item RES may serve as a valuable instrument in research and in clinical practice.
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Affiliation(s)
| | - Hans Te Brake
- Impact, Dutch Knowledge and Advice Center for Psychosocial Care and Safety Concerning Critical Incidents, Diemen, Netherlands.,Arq Psychotrauma Expert Group, Diemen, Netherlands
| | - Niels van der Aa
- Arq Psychotrauma Expert Group, Diemen, Netherlands.,Foundation Centrum'45, Diemen, Netherlands
| | - Pasha Dashtgard
- Department of Psychology and Social Behavior, University of California, Irvine, Irvine, CA, United States
| | - Anne Bakker
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Miranda Olff
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Arq Psychotrauma Expert Group, Diemen, Netherlands
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Schnyder U, Schäfer I, Aakvaag HF, Ajdukovic D, Bakker A, Bisson JI, Brewer D, Cloitre M, Dyb GA, Frewen P, Lanza J, Le Brocque R, Lueger-Schuster B, Mwiti GK, Oe M, Rosner R, Schellong J, Shigemura J, Wu K, Olff M. The global collaboration on traumatic stress. Eur J Psychotraumatol 2017; 8:1403257. [PMID: 29435201 PMCID: PMC5800488 DOI: 10.1080/20008198.2017.1403257] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 11/02/2017] [Indexed: 11/18/2022] Open
Abstract
Trauma is a global issue. The great majority of the global burden of disease arising from mental health conditions occurs in low- and middle-income countries (LMICs), among populations in political, economic, and/or cultural transition and those struck by forced migration. These mental health problems frequently arise as a result of traumatic events that adversely affect adults, children, and families, including war, mass violence, natural disasters, and accidents. In response to this, the International Society for Traumatic Stress Studies (ISTSS) launched the Global Initiative to have a stronger global impact on trauma-related issues. As part of this initiative, the Global Collaboration was established by representatives of eight professional organizations active in the field of traumatic stress. The group decided to focus on childhood abuse and neglect as its first collaboration. They collected guidelines worldwide, providing the basis for a synthesized core guide for prevention and treatment that can be customized for specific cultural contexts. The resulting 'Internet information on Childhood Abuse and Neglect' (iCAN) is a comprehensive guide for adults who have been affected by childhood abuse and neglect, as well as for the survivors' significant others. It is currently provided in eight languages, and is freely available at the homepage of ISTSS and other websites. A second achievement of the Global Collaboration is the validation of the Computerized Childhood Attachment and Relational Trauma Screen (CARTS), a self-report measure designed to measure occurrences of childhood maltreatment, and its translation into multiple languages, including Croatian, Dutch, French, Georgian, German, Italian, Japanese, Norwegian, Russian, and Spanish. A study is currently planned to collect normative responses to the questionnaire, and to conduct cross-cultural comparisons. The Global Collaboration's success may be seen as an encouraging step towards a truly global structure in the field of traumatic stress.
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Affiliation(s)
- Ulrich Schnyder
- Department of Psychiatry and Psychotherapy, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Ingo Schäfer
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Helene F. Aakvaag
- Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway
| | - Dean Ajdukovic
- Department of Psychology, Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | - Anne Bakker
- Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
| | - Jonathan I. Bisson
- Division of Psychological Medicine and Clinical Neurosciences, Cardiff University School of Medicine, Cardiff, UK
| | - Douglas Brewer
- Ramsay Health Care, The Hollywood Clinic, Perth, Australia
| | - Marylène Cloitre
- National Center for PTSD Dissemination and Training Division, VA Palo Alto Health Care System, Department of Psychiatry and Behavioral Sciences, Stanford University, Menlo Park, CA, USA
| | - Grete A. Dyb
- Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Paul Frewen
- Department of Psychiatry, Western University, London, Canada
| | - Juliana Lanza
- Argentine Society for Psychotrauma, Buenos Aires, Argentina
| | - Robyne Le Brocque
- School of Nursing, Midwifery, and Social Work, University of Queensland, Brisbane, Australia
| | | | - Gladys K. Mwiti
- Oasis Africa Centre for Transformational Psychology & Trauma, Nairobi, Kenya
| | - Misari Oe
- Department of Neuropsychiatry, Kurume University School of Medicine, Kurume, Japan
| | - Rita Rosner
- Department of Psychology, Catholic University Eichstätt-Ingolstadt, Eichstätt, Germany
| | - Julia Schellong
- Department of Psychotherapy and Psychosomatic Medicine, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Jun Shigemura
- Department of Psychiatry, National Defense Medical College, Tokorozawa, Japan
| | - Kitty Wu
- Asian Society for Traumatic Stress Studies, Hong Kong, China
- Clinical Psychological Services, Kwai Chung Hospital, Hospital Authority, Hong Kong, China
| | - Miranda Olff
- Department of Psychiatry, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands
- Arq Psychotrauma Expert Group, Diemen, The Netherlands
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Kok HP, Korshuize-van Straten L, Bakker A, de Kroon – Oldenhof R, Westerveld GH, Versteijne E, Stalpers LJA, Crezee J. Feasibility of on-line temperature-based hyperthermia treatment planning to improve tumour temperatures during locoregional hyperthermia. Int J Hyperthermia 2017; 34:1082-1091. [DOI: 10.1080/02656736.2017.1400120] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- H. P. Kok
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - L. Korshuize-van Straten
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - A. Bakker
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - R. de Kroon – Oldenhof
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - G. H. Westerveld
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - E. Versteijne
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - L. J. A. Stalpers
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - J. Crezee
- Department of Radiation Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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van der Meer CAI, Bakker A, Schrieken BAL, Hoofwijk MC, Olff M. Screening for trauma-related symptoms via a smartphone app: The validity of Smart Assessment on your Mobile in referred police officers. Int J Methods Psychiatr Res 2017; 26:e1579. [PMID: 28948699 PMCID: PMC5639363 DOI: 10.1002/mpr.1579] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 06/09/2017] [Accepted: 06/26/2017] [Indexed: 01/04/2023] Open
Abstract
To facilitate easily accessible screening for trauma-related symptoms, a web-based application called Smart Assessment on your Mobile (SAM) was developed. In this study, we examined whether SAM was able to accurately identify posttraumatic stress disorder (PTSD) and depression in adults. Eighty-nine referred police officers completed SAM, containing the PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders (DSM)-5 (PCL-5) and the Depression Anxiety and Stress Scale (DASS-21), on their own device prior to a diagnostic interview where the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) and Structured Clinical Interview for DSM-IV (SCID-I/P) were administered. Results showed a substantial agreement between SAM and the diagnostic interview in the assessment of PTSD and depression. An optimal trade-off between sensitivity (89%) and specificity (68%) levels was found at a cut-off score of 31 on the PTSD Checklist for DSM-5 (area under the curve = 0.845, 95% CI [0.765, 0.925], diagnostic odds ratio = 15.97). This is one of the first studies to support the validity and reliability of a mobile screener following trauma. SAM may facilitate screening for trauma-related symptoms on a large scale and could be a first step in a stepped-care model for trauma survivors to help identify individuals who need further diagnostics and care.
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Affiliation(s)
| | - Anne Bakker
- Academic Medical Centre, Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands
| | | | | | - Miranda Olff
- Academic Medical Centre, Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands.,Arq Psychotrauma Expert Group, Diemen, The Netherlands
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Saywell A, Bakker A, Mielke J, Kumagai T, Wolf M, García-López V, Chiang PT, Tour JM, Grill L. Light-Induced Translation of Motorized Molecules on a Surface. ACS Nano 2016; 10:10945-10952. [PMID: 27783488 DOI: 10.1021/acsnano.6b05650] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Molecular machines are a key component in the vision of molecular nanotechnology and have the potential to transport molecular species and cargo on surfaces. The motion of such machines should be triggered remotely, ultimately allowing a large number of molecules to be propelled by a single source, with light being an attractive stimulus. Here, we report upon the photoinduced translation of molecular machines across a surface by characterizing single molecules before and after illumination. Illumination of molecules containing a motor unit results in an enhancement in the diffusion of the molecules. The effect vanishes if an incompatible photon energy is used or if the motor unit is removed from the molecule, revealing that the enhanced motion is due to the presence of the wavelength-sensitive motor in each molecule.
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Affiliation(s)
- Alex Saywell
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
- School of Physics and Astronomy, The University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | - Anne Bakker
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Johannes Mielke
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Takashi Kumagai
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Martin Wolf
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Víctor García-López
- Departments of Chemistry and Materials Science and NanoEngineering and the Smalley Institute for Nanoscale Science and Technology, Rice University , Houston, Texas 77005, United States
| | - Pinn-Tsong Chiang
- Departments of Chemistry and Materials Science and NanoEngineering and the Smalley Institute for Nanoscale Science and Technology, Rice University , Houston, Texas 77005, United States
| | - James M Tour
- Departments of Chemistry and Materials Science and NanoEngineering and the Smalley Institute for Nanoscale Science and Technology, Rice University , Houston, Texas 77005, United States
| | - Leonhard Grill
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
- Department of Physical Chemistry, University of Graz , Heinrichstrasse 28, Graz 8010, Austria
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Schooneveldt G, Kok HP, Balidemaj E, Geijsen ED, van Ommen F, Sijbrands J, Bakker A, de la Rosette JJMCH, Hulshof MCCM, de Reijke TM, Crezee J. Improving hyperthermia treatment planning for the pelvis by accurate fluid modeling. Med Phys 2016; 43:5442. [DOI: 10.1118/1.4961741] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Schooneveldt G, Kok H, Bakker A, Geijsen E, de Reijke T, Crezee J. SU-F-J-05: The Effect of Air Pockets in the Urinary Bladder During Bladder Hyperthermia Treatment. Med Phys 2016. [DOI: 10.1118/1.4955913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Schooneveldt G, Kok H, Geijsen E, Bakker A, Balidemaj E, De la Rosette J, Hulshof M, De Reijke T, Crezee J. OC-0548: Hyperthermia treatment planning in the pelvis using thermophysical fluid modelling of the bladder. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31798-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Schooneveldt G, Geijsen E, Van Ommen F, Bakker A, Kok H, Westendarp Zanartu M, De la Rosette J, Hulshof M, De Reijke T, Crezee J. PO-0727: Thermophysical fluid modelling for loco-regional hyperthermia treatment of Non-Muscle Invasive Bladder Cancer. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40719-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Affiliation(s)
- Miranda Olff
- Department of Psychiatry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.,Arq Psychotrauma Expert Group, Diemen, The Netherlands;
| | - Mirjam Van Zuiden
- Department of Psychiatry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Anne Bakker
- Department of Psychiatry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
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Bakker A, Van der Heijden PGM, Van Son MJM, Van Loey NEE. Course of traumatic stress reactions in couples after a burn event to their young child. Health Psychol 2013; 32:1076-83. [PMID: 23957899 DOI: 10.1037/a0033983] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE This study examines traumatic stress reactions in couples that were followed prospectively for 18 months after a burn event to their child. METHOD The participants included 186 mothers and 159 fathers of 198 preschool children. Parents' self-reported traumatic stress reactions were measured with the Impact of Event Scale (IES). Predictors included parental emotions and the perceived life-threatening character of the child's injury. RESULTS Rates for clinically significant symptoms (IES ≥ 26) decreased from 50% within the first month to 18% at 18 months postburn for mothers and from 27% to 6% for fathers. The decline in symptoms was not entirely linear. Mothers had higher scores than fathers, but the discrepancy in intrusion symptoms among couples diminished over the course of time. Early appraisal of life threat and emotions about the burn event were significant predictors. CONCLUSIONS Both mothers and fathers are seriously affected by a burn event of their young child. Despite a general decrease over time, a subgroup of parents is at risk for chronic symptoms. The results call for the integration of prolonged parent support in family centered pediatric burn aftercare programs.
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Willie CK, Smith KJ, Day TA, Ray LA, Lewis NCS, Bakker A, Macleod DB, Ainslie PN. Regional cerebral blood flow in humans at high altitude: gradual ascent and 2 wk at 5,050 m. J Appl Physiol (1985) 2013; 116:905-10. [PMID: 23813533 DOI: 10.1152/japplphysiol.00594.2013] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The interindividual variation in ventilatory acclimatization to high altitude is likely reflected in variability in the cerebrovascular responses to high altitude, particularly between brain regions displaying disparate hypoxic sensitivity. We assessed regional differences in cerebral blood flow (CBF) measured with Duplex ultrasound of the left internal carotid and vertebral arteries. End-tidal Pco2, oxyhemoglobin saturation (SpO2), blood pressure, and heart rate were measured during a trekking ascent to, and during the first 2 wk at, 5,050 m. Transcranial color-coded Duplex ultrasound (TCCD) was employed to measure flow and diameter of the middle cerebral artery (MCA). Measures were collected at 344 m (TCCD-baseline), 1,338 m (CBF-baseline), 3,440 m, and 4,371 m. Following arrival to 5,050 m, regional CBF was measured every 12 h during the first 3 days, once at 5-9 days, and once at 12-16 days. Total CBF was calculated as twice the sum of internal carotid and vertebral flow and increased steadily with ascent, reaching a maximum of 842 ± 110 ml/min (+53 ± 7.6% vs. 1,338 m; mean ± SE) at ∼ 60 h after arrival at 5,050 m. These changes returned to +15 ± 12% after 12-16 days at 5,050 m and were related to changes in SpO2 (R(2) = 0.36; P < 0.0001). TCCD-measured MCA flow paralleled the temporal changes in total CBF. Dilation of the MCA was sustained on days 2 (+12.6 ± 4.6%) and 8 (+12.9 ± 2.9%) after arrival at 5,050 m. We observed no significant differences in regional CBF at any time point. In conclusion, the variability in CBF during ascent and acclimatization is related to ventilatory acclimatization, as reflected in changes in SpO2.
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Affiliation(s)
- C K Willie
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia-Okanagan, Kelowna, British Columbia, Canada
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Bakker A, Van Loey NEE, Van der Heijden PGM, Van Son MJM. Acute stress reactions in couples after a burn event to their young child. J Pediatr Psychol 2012; 37:1127-35. [PMID: 22836747 DOI: 10.1093/jpepsy/jss083] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE This multicenter study examines acute stress reactions in couples following a burn event to their preschool child. METHODS Participants were 182 mothers and 154 fathers, including 143 couples, of 193 children (0-4 years) with acute burns. Parents' self-reported acute stress reactions and emotions regarding the burn event were measured within the first month postburn. RESULTS More mothers than fathers reported clinically significant acute stress reactions. Multilevel analysis revealed that individual parent reactions were associated with parent gender and negative emotions about the burn event. Interestingly, avoidance symptoms overlapped to an important extent within couples, whereas intrusion symptoms were mainly intra-individual. Burn characteristics, such as burn size, contributed to acute stress within couples. CONCLUSIONS Mothers and fathers are seriously affected by their child's burn trauma and share a part of their acute stress reactions. These results emphasize the importance of a family-based approach to support adjustment after pediatric medical trauma.
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Affiliation(s)
- Anne Bakker
- Association of Dutch Burn Centres, P.O. Box 1015, The Netherlands.
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