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Sahu R, Qiu L, Hease W, Arnold G, Minoguchi Y, Rabl P, Fink JM. Entangling microwaves with light. Science 2023; 380:718-721. [PMID: 37200415 DOI: 10.1126/science.adg3812] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/19/2023] [Indexed: 05/20/2023]
Abstract
Quantum entanglement is a key resource in currently developed quantum technologies. Sharing this fragile property between superconducting microwave circuits and optical or atomic systems would enable new functionalities, but this has been hindered by an energy scale mismatch of >104 and the resulting mutually imposed loss and noise. In this work, we created and verified entanglement between microwave and optical fields in a millikelvin environment. Using an optically pulsed superconducting electro-optical device, we show entanglement between propagating microwave and optical fields in the continuous variable domain. This achievement not only paves the way for entanglement between superconducting circuits and telecom wavelength light, but also has wide-ranging implications for hybrid quantum networks in the context of modularization, scaling, sensing, and cross-platform verification.
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Affiliation(s)
- R Sahu
- Institute of Science and Technology Austria, am Campus 1, 3400 Klosterneuburg, Austria
| | - L Qiu
- Institute of Science and Technology Austria, am Campus 1, 3400 Klosterneuburg, Austria
| | - W Hease
- Institute of Science and Technology Austria, am Campus 1, 3400 Klosterneuburg, Austria
| | - G Arnold
- Institute of Science and Technology Austria, am Campus 1, 3400 Klosterneuburg, Austria
| | - Y Minoguchi
- Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1040 Vienna, Austria
| | - P Rabl
- Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1040 Vienna, Austria
- Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
- Technische Universität München, TUM School of Natural Sciences, 85748 Garching, Germany
- Munich Center for Quantum Science and Technology (MCQST), 80799 Munich, Germany
| | - J M Fink
- Institute of Science and Technology Austria, am Campus 1, 3400 Klosterneuburg, Austria
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Prichard A, Appiah S, Kearsley R, Arnold G. Seizures after epidural blood patch in a postpartum patient later diagnosed with hypertension and proteinuria: a diagnostic conundrum. Anaesth Rep 2022; 10:e12149. [PMID: 35237757 PMCID: PMC8870969 DOI: 10.1002/anr3.12149] [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] [Indexed: 11/12/2022] Open
Abstract
Seizures are a rare, but documented, consequence of accidental dural puncture and epidural blood patch. They are also the cardinal feature of eclampsia. We present a postpartum patient who suffered a tonic-clonic seizure within 1 hour of an epidural blood patch procedure for a suspected post-dural puncture headache. Investigations also revealed hypertension, proteinuria and subdural collections. This case demonstrates the diagnostic dilemma associated with postpartum headache and late postpartum eclampsia. We illustrate the importance of a thorough clinical assessment of postpartum patients presenting with headache, highlighting the possibility of more than one underlying pathological cause. We also consider the role of epidural blood patch in both precipitating, and preventing, complications of accidental dural puncture.
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Affiliation(s)
- A. Prichard
- Department of AnaesthesiaImperial College Healthcare NHS TrustLondonUK
| | - S. Appiah
- Department of AnaesthesiaImperial College Healthcare NHS TrustLondonUK
| | - R. Kearsley
- Department of AnaesthesiaImperial College Healthcare NHS TrustLondonUK
| | - G. Arnold
- Department of AnaesthesiaImperial College Healthcare NHS TrustLondonUK
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Bücke P, Henkes H, Arnold G, Herting B, Jüttler E, Klötzsch C, Lindner A, Mauz U, Niehaus L, Reinhard M, Waibel S, Horvath T, Bäzner H, Aguilar Pérez M. Seasonal patterns and associations in the incidence of acute ischemic stroke requiring mechanical thrombectomy. Eur J Neurol 2021; 28:2229-2237. [PMID: 33738909 PMCID: PMC9290541 DOI: 10.1111/ene.14832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 03/14/2021] [Indexed: 11/28/2022]
Abstract
Background In order to identify risk periods with an increased demand in technical and human resources, we tried to determine patterns and associations in the incidence of acute ischemic stroke due to embolic large vessel occlusions (eLVO) requiring mechanical thrombectomy (MT). Methods We conducted a time series analysis over a 9‐year period (2010–2018) based on observational data in order to detect seasonal patterns in the incidence of MT due to eLVO (n = 2628 patients). In a series of sequential negative binominal regression models, we aimed to detect further associations (e.g., temperature, atmospheric pressure, air pollution). Results There was a 6‐month seasonal pattern in the incidence of MT due to eLVO (p = 0.024) peaking in March and September. Colder overall temperature was associated with an increase in MT due to eLVO (average marginal effect [AME], [95% CI]: −0.15 [−0.30–0.0001]; p = 0.05; per °C). A current increase in the average monthly temperature was associated with a higher incidence of MT due to eLVO (0.34 [0.11–0.56]; p = 0.003). Atmospheric pressure was positively correlated with MT due to eLVO (0.38 [0.13–0.64]; p = 0.003; per hectopascal [hPa]). We could detect no causal correlation between air pollutants and MT due to eLVO. Conclusions Our data suggest a 6‐month seasonal pattern in the incidence of MT due to eLVO peaking in spring and early autumn. This might be attributed to two different factors: (1) a current temperature rise (comparing the average monthly temperature in consecutive months) and (2) colder overall temperature. These results could help to identify risk periods requiring an adaptation in local infrastructure.
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Affiliation(s)
- Philipp Bücke
- Department of Neurology, Inselspital, University Hospital Bern, Bern, Switzerland.,Neurological Clinic, Klinikum Stuttgart, Stuttgart, Germany
| | - Hans Henkes
- Neuroradiological Clinic, Klinikum Stuttgart, Stuttgart, Germany.,Medical Faculty, University Duisburg-Essen, Essen, Germany
| | - Guy Arnold
- Neurological Clinic, Klinikum Sindelfingen-Böblingen, Sindelfingen, Germany
| | - Birgit Herting
- Neurological Clinic, Diakonie-Klinikum Schwäbisch Hall, Schwäbisch Hall, Germany
| | - Eric Jüttler
- Neurological Clinic, Ostalb-Klinikum Aalen, Aalen, Germany
| | - Christof Klötzsch
- Neurological Clinic, Hegau-Bodensee-Klinikum Singen, Singen, Germany
| | - Alfred Lindner
- Neurological Clinic, Marienhospital Stuttgart, Stuttgart, Germany
| | - Uwe Mauz
- Neurological Clinic, MEDIUS Klinik Kirchheim, Kirchheim, Germany
| | - Ludwig Niehaus
- Neurological Clinic, Rems-Murr-Klinikum Winnenden, Winnenden, Germany
| | - Matthias Reinhard
- Clinic for Neurology and Clinical Neurophysiology, Klinikum Esslingen, Esslingen, Germany
| | - Stefan Waibel
- Center for Internal Medicine, Stauferklinikum Schwäbisch Gmünd, Schwäbisch Gmünd, Germany
| | - Thomas Horvath
- Department of Neurology, Inselspital, University Hospital Bern, Bern, Switzerland
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Arnold G, Wulf M, Barzanjeh S, Redchenko ES, Rueda A, Hease WJ, Hassani F, Fink JM. Converting microwave and telecom photons with a silicon photonic nanomechanical interface. Nat Commun 2020; 11:4460. [PMID: 32901014 PMCID: PMC7479601 DOI: 10.1038/s41467-020-18269-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 08/06/2020] [Indexed: 11/09/2022] Open
Abstract
Practical quantum networks require low-loss and noise-resilient optical interconnects as well as non-Gaussian resources for entanglement distillation and distributed quantum computation. The latter could be provided by superconducting circuits but existing solutions to interface the microwave and optical domains lack either scalability or efficiency, and in most cases the conversion noise is not known. In this work we utilize the unique opportunities of silicon photonics, cavity optomechanics and superconducting circuits to demonstrate a fully integrated, coherent transducer interfacing the microwave X and the telecom S bands with a total (internal) bidirectional transduction efficiency of 1.2% (135%) at millikelvin temperatures. The coupling relies solely on the radiation pressure interaction mediated by the femtometer-scale motion of two silicon nanobeams reaching a Vπ as low as 16 μV for sub-nanowatt pump powers. Without the associated optomechanical gain, we achieve a total (internal) pure conversion efficiency of up to 0.019% (1.6%), relevant for future noise-free operation on this qubit-compatible platform.
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Affiliation(s)
- G Arnold
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - M Wulf
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - S Barzanjeh
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
- Institute for Quantum Science and Technology (IQST), University of Calgary, Calgary, AB, Canada
| | - E S Redchenko
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - A Rueda
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - W J Hease
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - F Hassani
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - J M Fink
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria.
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Barzanjeh S, Redchenko ES, Peruzzo M, Wulf M, Lewis DP, Arnold G, Fink JM. Stationary entangled radiation from micromechanical motion. Nature 2019; 570:480-483. [DOI: 10.1038/s41586-019-1320-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 04/30/2019] [Indexed: 11/09/2022]
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Agarwal A, Miller S, Hadden W, Johnston L, Wang W, Arnold G, Abboud RJ. Comparison of gait kinematics in total and unicondylar knee replacement surgery. Ann R Coll Surg Engl 2019; 101:391-398. [PMID: 31155888 DOI: 10.1308/rcsann.2019.0016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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
INTRODUCTION This study is aimed to compare kinematic gait data of patients who have undergone total and unicondylar knee replacement. MATERIALS AND METHODS This single-surgeon retrospective cohort study evaluated 13 patients with unilateral total knee arthroplasty (TKA) and 14 unicondylar knee arthroplasty (UKA). Gait analysis was carried out using a Vicon motion analysis system. The limits of knee flexion during stance phase, at heel strike and at loading response were measured. RESULTS The total range of motion of the UKA knees was significantly greater than the TKA knees. UKA knees exhibited significantly greater knee extension during the stance phase than the TKA knees. Unlike TKA, UKA knees demonstrated improved knee flexion during the gait cycle when compared to the contralateral non-operated knee. The hips also demonstrated near normal hip flexion in UKA patients. Predictably, UKA knees had significantly greater varus compared with TKA in the coronal plane. Spatiotemporal variables demonstrated similar walking speed and step length to aid a fair comparison between knee replacement groups. CONCLUSIONS The UKA knees moved more physiologically in the sagittal plane with a greater range of motion during gait. Despite having a stiff gait pattern, the patients undergoing TKA demonstrated a more neutral alignment in the coronal plane. Neither type of knee arthroplasty restored knee kinematics to those of the non-operated side.
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Affiliation(s)
- A Agarwal
- Institute of Motion Analysis & Research (IMAR), Department of Orthopaedics & Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University Of Dundee , Dundee DD19SY , UK
| | - S Miller
- Institute of Motion Analysis & Research (IMAR), Department of Orthopaedics & Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University Of Dundee , Dundee DD19SY , UK
| | - W Hadden
- Institute of Motion Analysis & Research (IMAR), Department of Orthopaedics & Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University Of Dundee , Dundee DD19SY , UK
| | - L Johnston
- Institute of Motion Analysis & Research (IMAR), Department of Orthopaedics & Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University Of Dundee , Dundee DD19SY , UK
| | - W Wang
- Institute of Motion Analysis & Research (IMAR), Department of Orthopaedics & Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University Of Dundee , Dundee DD19SY , UK
| | - G Arnold
- Institute of Motion Analysis & Research (IMAR), Department of Orthopaedics & Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University Of Dundee , Dundee DD19SY , UK
| | - R J Abboud
- Institute of Motion Analysis & Research (IMAR), Department of Orthopaedics & Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University Of Dundee , Dundee DD19SY , UK
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D'Lima D, Arnold G, Brett SJ, Bottle A, Smith A, Benn J. Continuous monitoring and feedback of quality of recovery indicators for anaesthetists: a qualitative investigation of reported effects on professional behaviour. Br J Anaesth 2018; 119:115-124. [PMID: 28974068 DOI: 10.1093/bja/aex136] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Background Research suggests that providing clinicians with feedback on their performance can result in professional behaviour change and improved clinical outcomes. Departments would benefit from understanding which characteristics of feedback support effective quality monitoring, professional behaviour change and service improvement. This study aimed to report the experience of anaesthetists participating in a long-term initiative to provide comprehensive personalized feedback to consultants on patient-reported quality of recovery indicators in a large London teaching hospital. Methods Semi-structured interviews were conducted with 13 consultant anaesthetists, six surgical nursing leads, the theatre manager and the clinical coordinator for recovery. Transcripts were qualitatively analysed for themes linked to the perceived value of the initiative, its acceptability and its effects upon professional practice. Results Analysis of qualitative data from participant interviews suggested that effective quality indicators must address areas that are within the control of the anaesthetist. Graphical data presentation, both longitudinal (personal variation over time) and comparative (peer-group distributions), was found to be preferable to summary statistics and provided useful and complementary perspectives for improvement. Developing trust in the reliability and credibility of the data through co-development of data reports with clinical input into areas such as case-mix adjustment was important for engagement. Making feedback specifically relevant to the recipient supported professional learning within a supportive and open collaborative environment. Conclusions This study investigated the requirements for effective feedback on quality of anaesthetic care for anaesthetists, highlighting the mechanisms by which feedback may translate into improvements in practice at the individual and peer-group level.
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Affiliation(s)
- D D'Lima
- Department of Applied Health Research, University College London, 1-19 Torrington Place, London WC1E 7HB, UK
| | - G Arnold
- Department of Anaesthesia, Imperial College Healthcare NHS Trust, London, UK
| | - S J Brett
- Centre for Perioperative Medicine and Critical Care Research, Imperial College Healthcare NHS Trust, London, UK
| | - A Bottle
- School of Public Health, Imperial College London, UK
| | - A Smith
- Department of Anaesthesia, Royal Lancaster Infirmary, UK
| | - J Benn
- Patient Safety Translational Research Centre, Imperial College London, UK
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Weiss D, Hieber L, Sturm J, Börtlein A, Buchthal J, Dippon C, Arnold G, Wächter T. Health-related quality of life outcomes from botulinumtoxin treatment in blepharospasm. Clin Neurol Neurosurg 2018; 172:130-133. [PMID: 29990961 DOI: 10.1016/j.clineuro.2018.06.040] [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] [Received: 03/10/2018] [Revised: 05/25/2018] [Accepted: 06/30/2018] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Blepharospasm associates with impairment in generic health-related quality of life (HR-QoL). Albeit botulinum toxin is widely used to alleviate the motor symptoms of blepharospasm, its effect on generic health-related quality of life (HR-QoL) is heterogeneous. PATIENTS AND METHODS In this open-label clinical observational study, we characterized outcomes on HR-QoL in terms of the EuroQol (EQ-5D-5 L) from botulinum toxin (BoNT) injection in a prospective cohort of patients with blepharospasm (n = 55). Additionally, we characterized motor and non-motor signs of blepharospasm including motor symptom improvement, life satisfaction, depressive symptoms, pain and sleep quality. Patients were assessed at the end of a regular three-month period from last injection (Timepoint1) and four weeks after the re-injection of BoNT (Timepoint2). RESULTS There was no improvement of generic HR-QoL on group-level. Individual findings were heterogeneous, dividing patients in three groups of responders (RESP), unchanged outcomes (UNCHN), and worsening (WORSE). We identified, that these subgroups differed at Timepoint 1 with respect to EQ-5D-5 L, EQ-VAS, life satisfaction (health and movement disorders domains), Beck's Depression inventory, and sleep quality (One-way ANOVAs, P < 0.05, adjusted for multiple comparisons). In post-hoc Tuckey tests, RESP or WORSE showed distinct differences from UNCHN that might help to separate the subgroups in future. As such, RESP showed higher impairment in EQ-5D-5L, EQ-VAS, and Beck's Depression Inventory compared to UNCHN (unlike WORSE), whereas WORSE showed higher impairment in life satisfaction 'movement disorders' domain (unlike RESP). CONCLUSION Our study suggests, that several dependent non-motor, life satisfaction and generic HR-QoL measures associate to individual patient outcomes. The variables identified in this study may be validated in future studies to predict HR-QoL outcomes in patients with blepharospasm.
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Affiliation(s)
- Daniel Weiss
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany
| | - Leonhard Hieber
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany
| | - Justine Sturm
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany
| | - Axel Börtlein
- Neurologische Klinik, Klinikum Stuttgart, Stuttgart, Germany
| | - Joachim Buchthal
- Neurologische Gemeinschaftspraxis am Seelberg, Stuttgart, Germany
| | - Christian Dippon
- Neurologische Gemeinschaftspraxis am Seelberg, Stuttgart, Germany
| | - Guy Arnold
- Klinik für Neurologie Sindelfingen, Krankenhaus Sindelfingen-Böblingen, Sindelfingen, Germany
| | - Tobias Wächter
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany; Abteilung für Neurologie, Reha-Zentrum Bad Gögging, Passauer Wolf, Bad Gögging, Germany.
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Miller S, Agarwal A, Haddon WB, Johnston L, Arnold G, Wang W, Abboud RJ. Comparison of gait kinetics in total and unicondylar knee replacement surgery. Ann R Coll Surg Engl 2018; 100:267-274. [PMID: 29484928 PMCID: PMC5958845 DOI: 10.1308/rcsann.2017.0226] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2017] [Indexed: 11/22/2022] Open
Abstract
Introduction The aim of this study was to compare kinetical data from gait analysis of patients who have undergone total and uni-condylar knee replacement. Materials and methods Thirteen patients with unilateral total knee arthroplasty (TKA) and 13 unicondylar knee arthroplasty (UKA), were included, all performed by the same surgeon more than one year prior. The Vicon gait analysis system was used. Statistical power was calculated using SPSS. Results No significant difference was found in the spatiotemporal parameters of gait and survival years of the knee prosthesis between the two groups. The UKA group was found to have significantly larger moments than the TKA group in knee adduction on the operated side and knee flexion moment on the unoperated side during the loading phase. The maximum and minimum sagittal plane moments of the operated sides in the TKA group were significantly lower than the unoperated side. The difference was most significant at pre-swing. The maximum and minimum moments on the operated sides in the UKA group were significantly lower for the knee flexion and adduction moments when compared with the unoperated side and were most prevalent during the loading phase. Conclusions These results are relevant in terms of prosthesis wear. The TKA knees had smaller magnitude moments than the UKA knees in the sagittal and coronal planes. This could explain the higher revision rates for UKA. In both groups, the non-operated knees had significantly larger moments than the operated knees, which implies that after unilateral knee replacement of either type, the non-operated knee is being put under greater stress.
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Affiliation(s)
- S Miller
- Department of Orthopaedics, TORT Centre, Ninewells Hospital, University of Dundee, Dundee, UK
| | - A Agarwal
- Department of Orthopaedics, TORT Centre, Ninewells Hospital, University of Dundee, Dundee, UK
| | - WB Haddon
- Department of Orthopaedics, TORT Centre, Ninewells Hospital, University of Dundee, Dundee, UK
| | - L Johnston
- Department of Orthopaedics, TORT Centre, Ninewells Hospital, University of Dundee, Dundee, UK
| | - G Arnold
- Department of Orthopaedics, TORT Centre, Ninewells Hospital, University of Dundee, Dundee, UK
| | - W Wang
- Department of Orthopaedics, TORT Centre, Ninewells Hospital, University of Dundee, Dundee, UK
| | - RJ Abboud
- Department of Orthopaedics, TORT Centre, Ninewells Hospital, University of Dundee, Dundee, UK
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Antonini A, Poewe W, Chaudhuri KR, Jech R, Pickut B, Pirtošek Z, Szasz J, Valldeoriola F, Winkler C, Bergmann L, Yegin A, Onuk K, Barch D, Odin P, Amalia E, Arnold G, Bajenaru O, Bergmans B, Bjornara KA, Blackie J, Bode M, Bourgeois P, Bohlhalter S, Buraga I, Burkhard PR, Busson P, Calopa M, Clausen J, Danielsen EH, Defebvre L, Delvaux V, Dethy S, Dietrichs E, De Fabregues O, Gerhard R, Gusmaroli G, Hahn K, Hauptmann B, Henriksen T, Hernandez-Vara J, Jeanjean A, Kaiserova M, Kassubek J, Kimber T, Konitsiotis S, Krüger R, Kulisevsky J, Leenders J, Lundqvist C, Ory Magne F, Marano P, Milanov I, Modugno N, Misbahuddin A, Nevrly M, Panayiotis Z, Pedersen KF, Pedersen SW, Perju-Dumbrava L, Ponsen M, Popescu BO, Rijntjes M, Puente V, Redecker C, Schrader C, Sensi M, Simu M, Spanaki C, Storch A, Storstein A, Tomantschger V, van der Linden C, van Laar T, Viallet F, Witjas T, Wolz M, Zibetti M, Van Zandijcke M. Levodopa-carbidopa intestinal gel in advanced Parkinson's: Final results of the GLORIA registry. Parkinsonism Relat Disord 2017; 45:13-20. [DOI: 10.1016/j.parkreldis.2017.09.018] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/16/2017] [Accepted: 09/18/2017] [Indexed: 11/24/2022]
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Weiss D, Hieber L, Sturm J, Börtlein A, Mayr I, Appy M, Kühnler B, Buchthal J, Dippon C, Arnold G, Wächter T. Botulinumtoxin Improves both Generic and Disease-Specific Quality of Life in Cervical Dystonia. Front Neurol 2017; 8:561. [PMID: 29114239 PMCID: PMC5660718 DOI: 10.3389/fneur.2017.00561] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 10/05/2017] [Indexed: 11/16/2022] Open
Abstract
Botulinumtoxin injection (BoNT) into affected muscles is effective to improve motor symptoms of cervical dystonia (CD) by reducing muscle contraction and involuntary dystonic movement and posturing. However, the understanding of the effect on health-related quality of life (HR-QoL) and patient referral under HR-QoL aspects is incomplete. In this open-label clinical prospective observational study, we characterized the outcomes in CD (n = 159) from botulinumtoxin on both generic HR-QoL (EuroQol; EQ-5D-5L) and disease-specific HR-QoL [craniocervical dystonia questionnaire (CDQ-24)]. Additionally, we characterized motor and non-motor signs of dystonia including motor symptom improvement, depressive symptoms, pain, and sleep quality. We assessed patients at the end of a regular 3-month period from last injection (Timepoint1) and 4 weeks after the re-injection of BoNT (Timepoint2). We aimed to define outcomes on both generic and disease-specific HR-QoL and to evaluate predictors of therapeutic outcome in terms of stepwise multiple regression models. Patients with CD showed a robust improvement of both generic and disease-specific HR-QoL. Furthermore, motor and non-motor signs improved. Multiple regression analyses revealed that EQ-5D-5L and “satisfaction with health” (Fragen zur Lebenszufriedenheit-G) at Timepoint1 predicted treatment response on generic HR-QoL outcome (R2 = 0.284; P = 0.019). Similarly, CDQ-24 and Beck’s Depression inventory at Timepoint1 predicted the treatment response on disease-specific HR-QoL (R2 = 0.253; P = 0.026). Our study underscores both generic and disease-specific HR-QoL improvements in CD, and provides useful predictors on HR-QoL outcomes.
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Affiliation(s)
- Daniel Weiss
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany.,Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany
| | - Leonhard Hieber
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany.,Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany
| | - Justine Sturm
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany.,Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany
| | - Axel Börtlein
- Neurologische Klinik, Klinikum Stuttgart, Stuttgart, Germany
| | - Ingo Mayr
- Klinik für Neurologie Sindelfingen, Krankenhaus Sindelfingen-Böblingen, Sindelfingen, Germany
| | - Matthias Appy
- Berufsausübungsgemeinschaft Dres. Matthias Appy, Wolfgang Molt, Prof. Arthur Melms und Kollegen, Stuttgart, Germany
| | - Benedicta Kühnler
- Berufsausübungsgemeinschaft Dres. Matthias Appy, Wolfgang Molt, Prof. Arthur Melms und Kollegen, Stuttgart, Germany
| | - Joachim Buchthal
- Neurologische Gemeinschaftspraxis am Seelberg, Stuttgart, Germany
| | - Christian Dippon
- Neurologische Gemeinschaftspraxis am Seelberg, Stuttgart, Germany
| | - Guy Arnold
- Klinik für Neurologie Sindelfingen, Krankenhaus Sindelfingen-Böblingen, Sindelfingen, Germany
| | - Tobias Wächter
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany.,Department of Neurodegenerative Diseases, Centre of Neurology, University of Tübingen, Tübingen, Germany.,Abteilung für Neurologie, Reha-Zentrum Bad Gögging, Passauer Wolf, Bad Gögging, Germany
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Weiss D, Sturm J, Hieber L, Börtlein A, Mayr I, Appy M, Kühnler B, Buchthal J, Dippon C, Arnold G, Wächter T. Health-related quality of life outcomes from botulinum toxin treatment in hemifacial spasm. Ther Adv Neurol Disord 2017; 10:211-216. [PMID: 28507604 PMCID: PMC5415226 DOI: 10.1177/1756285616682676] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 11/14/2016] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Although botulinum neurotoxin (BoNT) injections may alleviate involuntary muscle contractions in hemifacial spasm substantially, it is less clear whether the motor effect would translate into improvements of health-related quality of life (HR-QoL). METHODS In this open-label clinical observational study, we characterized outcomes on HR-QoL in terms of the EuroQol (EQ-5D-5L) from BoNT in a prospective cohort of patients with hemifacial spasm (n = 73). Additionally, we characterized appendicular motor and nonmotor signs on motor symptom improvement, depressive symptoms, pain and sleep quality. Patients were assessed at the end of a regular 3-month period from last injection (timepoint1) and 4 weeks after the reinjection of BoNT (timepoint2). RESULTS Patients showed improved HR-QoL on the EQ-VAS (visual analogue scale) at timepoint2 compared with timepoint1. Moreover, we identified, that impairments in HR-QoL at timepoint1 correlated with life satisfaction and depressive symptoms, respectively. However, these associated variables did not predict the therapeutic effect. Instead, EQ-VAS at timepoint1 accounted for 34.5% of the variance of EQ-VAS improvement expressed as the difference between timepoint2 and timepoint1. CONCLUSION Our study supports HR-QoL improvements in hemifacial spasm and the value of generic HR-QoL measures to estimate therapeutic outcome. However, the findings should be considered descriptive, and future high quality trials are needed for confirmatory purposes in order to refine treatment referral in hemifacial spasm with respect to QoL.
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Affiliation(s)
- Daniel Weiss
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany
| | - Justine Sturm
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany
| | - Leonhard Hieber
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany
| | - Axel Börtlein
- Neurologische Klinik, Klinikum Stuttgart, Stuttgart, Germany
| | - Ingo Mayr
- Klinik für Neurologie Sindelfingen, Krankenhaus Sindelfingen-Böblingen, Sindelfingen, Germany
| | - Matthias Appy
- Berufsausübungsge-meinschaft Dres. Matthias Appy, Wolfgang Molt, Prof. Arthur Melms und Kollegen, Stuttgart, Germany
| | - Benedicta Kühnler
- Berufsausübungsge-meinschaft Dres. Matthias Appy, Wolfgang Molt, Prof. Arthur Melms und Kollegen, Stuttgart, Germany
| | - Joachim Buchthal
- Neurologische Gemeinschaftspraxis am Seelberg, Stuttgart, Germany
| | - Christian Dippon
- Neurologische Gemeinschaftspraxis am Seelberg, Stuttgart, Germany
| | - Guy Arnold
- Klinik für Neurologie Sindelfingen, Krankenhaus Sindelfingen-Böblingen, Sindelfingen, Germany
| | - Tobias Wächter
- Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany
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Filacchione G, Raponi A, Capaccioni F, Ciarniello M, Tosi F, Capria MT, De Sanctis MC, Migliorini A, Piccioni G, Cerroni P, Barucci MA, Fornasier S, Schmitt B, Quirico E, Erard S, Bockelee-Morvan D, Leyrat C, Arnold G, Mennella V, Ammannito E, Bellucci G, Benkhoff J, Bibring JP, Blanco A, Blecka MI, Carlson R, Carsenty U, Colangeli L, Combes M, Combi M, Crovisier J, Drossart P, Encrenaz T, Federico C, Fink U, Fonti S, Fulchignoni M, Ip WH, Irwin P, Jaumann R, Kuehrt E, Langevin Y, Magni G, McCord T, Moroz L, Mottola S, Palomba E, Schade U, Stephan K, Taylor F, Tiphene D, Tozzi GP, Beck P, Biver N, Bonal L, Combe JP, Despan D, Flamini E, Formisano M, Frigeri A, Grassi D, Gudipati MS, Kappel D, Longobardo A, Mancarella F, Markus K, Merlin F, Orosei R, Rinaldi G, Cartacci M, Cicchetti A, Hello Y, Henry F, Jacquinod S, Reess JM, Noschese R, Politi R, Peter G. Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko. Science 2016; 354:1563-1566. [DOI: 10.1126/science.aag3161] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 10/28/2016] [Indexed: 11/02/2022]
Affiliation(s)
- G. Filacchione
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - A. Raponi
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - F. Capaccioni
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - M. Ciarniello
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - F. Tosi
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - M. T. Capria
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - M. C. De Sanctis
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - A. Migliorini
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - G. Piccioni
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - P. Cerroni
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - M. A. Barucci
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - S. Fornasier
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - B. Schmitt
- Université Grenoble Alpes, CNRS, Institut de Planetologie et d’Astrophysique de Grenoble, Grenoble, France
| | - E. Quirico
- Université Grenoble Alpes, CNRS, Institut de Planetologie et d’Astrophysique de Grenoble, Grenoble, France
| | - S. Erard
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - D. Bockelee-Morvan
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - C. Leyrat
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - G. Arnold
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - V. Mennella
- INAF Osservatorio di Capodimonte, Naples, Italy
| | - E. Ammannito
- Department of Earth, Planetary, and Space Sciences, University of California–Los Angeles, 603 Charles Young Drive, Los Angeles, CA 90095-1567, USA
| | - G. Bellucci
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - J. Benkhoff
- ESA (European Space Agency), European Space Research and Technology Centre, Noordwjik, Netherlands
| | - J. P. Bibring
- Institut d’Astrophysique Spatial, CNRS, Orsay, France
| | - A. Blanco
- Dipartimento di Matematica e Fisica “Ennio De Giorgi,” Università del Salento, Lecce, Italy
| | - M. I. Blecka
- Space Research Centre, Polish Academy of Sciences, Warsaw, Poland
| | - R. Carlson
- NASA JPL (Jet Propulsion Laboratory), California Institute of Technology, Pasadena, CA 91109, USA
| | - U. Carsenty
- Université Grenoble Alpes, CNRS, Institut de Planetologie et d’Astrophysique de Grenoble, Grenoble, France
| | - L. Colangeli
- ESA (European Space Agency), European Space Research and Technology Centre, Noordwjik, Netherlands
| | - M. Combes
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - M. Combi
- Space Physics Research Laboratory, The University of Michigan, Ann Arbor, MI 48109, USA
| | - J. Crovisier
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - P. Drossart
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - T. Encrenaz
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | | | - U. Fink
- Lunar Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - S. Fonti
- Dipartimento di Matematica e Fisica “Ennio De Giorgi,” Università del Salento, Lecce, Italy
| | - M. Fulchignoni
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - W.-H. Ip
- National Central University, Taipei, Taiwan
| | - P. Irwin
- Departement of Physics, Oxford University, Oxford, UK
| | - R. Jaumann
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - E. Kuehrt
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - Y. Langevin
- Institut d’Astrophysique Spatial, CNRS, Orsay, France
| | - G. Magni
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - T. McCord
- Bear Fight Institute, Winthrop, WA 98862, USA
| | - L. Moroz
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - S. Mottola
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - E. Palomba
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - U. Schade
- Helmholtz-Zentrum Berlin für Materialien und Energie, Berlin, Germany
| | - K. Stephan
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - F. Taylor
- Departement of Physics, Oxford University, Oxford, UK
| | - D. Tiphene
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - G. P. Tozzi
- INAF Osservatorio Astrofisico di Arcetri, Firenze, Italy
| | - P. Beck
- Université Grenoble Alpes, CNRS, Institut de Planetologie et d’Astrophysique de Grenoble, Grenoble, France
| | - N. Biver
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - L. Bonal
- Université Grenoble Alpes, CNRS, Institut de Planetologie et d’Astrophysique de Grenoble, Grenoble, France
| | | | - D. Despan
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | | | - M. Formisano
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - A. Frigeri
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - D. Grassi
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - M. S. Gudipati
- NASA JPL (Jet Propulsion Laboratory), California Institute of Technology, Pasadena, CA 91109, USA
| | - D. Kappel
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - A. Longobardo
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - F. Mancarella
- Dipartimento di Matematica e Fisica “Ennio De Giorgi,” Università del Salento, Lecce, Italy
| | - K. Markus
- Institute for Planetary Research, DLR (Deutschen Zentrums für Luft- und Raumfahrt), Berlin, Germany
| | - F. Merlin
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - R. Orosei
- INAF Istituto di Radioastronomia, Bologna, Italy
| | - G. Rinaldi
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - M. Cartacci
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - A. Cicchetti
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - Y. Hello
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - F. Henry
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - S. Jacquinod
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - J. M. Reess
- Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Paris Sciences and Letters Research University, CNRS (Centre National de la Recherche Scientifique), Sorbonne Universités, UPMC (Université Pierre et Marie Curie) Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France
| | - R. Noschese
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - R. Politi
- INAF-IAPS (Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali), Rome, Italy
| | - G. Peter
- Institute of Optical Sensor Systems, DLR, Berlin, Germany
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Heinen A, Hossmann V, Fuchs M, McDonald F, Kreuzer J, Höpp H, Hombach V, Hirche H, Arnold G. Hemorheologic and hemodynamic problems to investigate protective intracoronary perfusion through the dilation catheter (DC) during percutaneous transluminal coronary angioplasty (PCTA)1. Clin Hemorheol Microcirc 2016. [DOI: 10.3233/ch-1985-5519] [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: 11/15/2022]
Affiliation(s)
- A. Heinen
- Medizinische Klinik II, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - V. Hossmann
- Medizinische Klinik II, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - M. Fuchs
- Medizinische Klinik III, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - F.M. McDonald
- Lehrstuhl für Angewandte Physiologie, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - J. Kreuzer
- Lehrstuhl für Angewandte Physiologie, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - H.W. Höpp
- Medizinische Klinik III, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - V. Hombach
- Medizinische Klinik III, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - H. Hirche
- Lehrstuhl für Angewandte Physiologie, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - G. Arnold
- Pathologisches Institut, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
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Blaj C, Bringmann A, Urbischek M, Krebs S, Blum H, Fröhlich T, Arnold G, Jung A, Kirchner T, Horst D. ADNP is a repressor of WNT signaling in colon cancer that can be therapeutically induced. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61611-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Offenhauser N, Zinck T, Hoffmann J, Schiemann K, Schuh-Hofer S, Rohde W, Arnold G, Dirnagl U, Jansen-Olesen I, Reuter U. CGRP Release and c-fos Expression within Trigeminal Nucleus Caudalis of the Rat following Glyceryltrinitrate Infusion. Cephalalgia 2016; 25:225-36. [PMID: 15689199 DOI: 10.1111/j.1468-2982.2004.00845.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Neuropeptide release and the expression of c-fos like immunoreactivity (c-fos LI) within trigeminal nucleus caudalis neurons (TNC) are activation markers of the trigeminal nerve system. Glyceryltrinitrate (GTN) is believed to stimulate the trigeminal nerve system, thereby causing headache. We examined the effects of a 30 min NO-donor infusion on CGRP release in jugular vein blood and c-fos LI within TNC of the rat. GTN (2 and 50 μg/kg/min) or NONOate infusion (25 nmol/kg/min) did not cause any CGRP release during and shortly after infusion, whereas administration of capsaicin resulted in strongly increased CGRP levels. GTN infusion (2 μg/kg/min for 30 min) did not lead to enhanced c-fos LI after 2 h and 4 h, whereas capsaicin infusion caused a time- and dose-dependent expression of c-fos LI within laminae I and II of the TNC. Surprisingly, GTN attenuated capsaicin-induced c-fos expression by 64%. The nitric oxide synthase (NOS) inhibitor L-NAME (5 and 50 mg/kg) reduced capsaicin-induced c-fos LI dose dependently (reduction by 13% and 59%). We conclude that GTN may lead to headaches by mechanisms independent of CGRP release from trigeminal nerve fibres. GTN doses comparable to those used in humans did not activate or sensitize the trigeminal nerve system. Both GTN and L-NAME reduced capsaicin-induced c-fos LI. This is most likely due to a feedback inhibition of nitric oxide synthases, which indicates that the c-fos response to capsaicin within TNC is mediated by NO dependent mechanisms.
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Affiliation(s)
- N Offenhauser
- Department of Neurology, Charité Universitätsmedizin Berlin, Berlin, Germany
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Schuh-Hofer S, Richter M, Israel H, Geworski L, Villringer A, Munz DL, Arnold G. The Use of Radiolabelled Human Serum Albumin and SPECT/MRI Co-Registration to Study Inflammation in The Cavernous Sinus of Cluster Headache Patients. Cephalalgia 2016; 26:1115-22. [PMID: 16919062 DOI: 10.1111/j.1468-2982.2006.01170.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A sterile inflammation in the cavernous sinus was hypothesized to underlie cluster headache (CH). Neurogenic inflammation is accompanied by the extravasation of plasma proteins in the surrounding tissue. We tested the hypothesis of an inflammatory process in the cavernous sinus in CH patients using 99mTc-human serum albumin (HSA) and single photon emission computed tomography (SPECT). Six patients with episodic CH were enrolled. After baseline imaging, CH attacks were induced by IV injection of nitroglycerin. The patients remained untreated for 20 min. A second SPECT was performed after successful treatment. Region of interest (ROI) analysis was performed on the basis of coregistered MRI/SPECT data. There was no statistical difference between the 99mTc-HSA uptake in the ipsilateral cavernous sinus before and after induction of an acute CH attack. There was no evidence for 99mTc-HSA extravasation in the cavernous sinus during the active episode as compared with the remission phase. Our results do not support the hypothesis of an inflammation in the cavernous sinus.
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Affiliation(s)
- S Schuh-Hofer
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany.
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De Sanctis MC, Capaccioni F, Ciarniello M, Filacchione G, Formisano M, Mottola S, Raponi A, Tosi F, Bockelée-Morvan D, Erard S, Leyrat C, Schmitt B, Ammannito E, Arnold G, Barucci MA, Combi M, Capria MT, Cerroni P, Ip WH, Kuehrt E, McCord TB, Palomba E, Beck P, Quirico E. The diurnal cycle of water ice on comet 67P/Churyumov-Gerasimenko. Nature 2015; 525:500-3. [PMID: 26399830 DOI: 10.1038/nature14869] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 06/19/2015] [Indexed: 11/09/2022]
Abstract
Observations of cometary nuclei have revealed a very limited amount of surface water ice, which is insufficient to explain the observed water outgassing. This was clearly demonstrated on comet 9P/Tempel 1, where the dust jets (driven by volatiles) were only partially correlated with the exposed ice regions. The observations of 67P/Churyumov-Gerasimenko have revealed that activity has a diurnal variation in intensity arising from changing insolation conditions. It was previously concluded that water vapour was generated in ice-rich subsurface layers with a transport mechanism linked to solar illumination, but that has not hitherto been observed. Periodic condensations of water vapour very close to, or on, the surface were suggested to explain short-lived outbursts seen near sunrise on comet 9P/Tempel 1. Here we report observations of water ice on the surface of comet 67P/Churyumov-Gerasimenko, appearing and disappearing in a cyclic pattern that follows local illumination conditions, providing a source of localized activity. This water cycle appears to be an important process in the evolution of the comet, leading to cyclical modification of the relative abundance of water ice on its surface.
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Affiliation(s)
- M C De Sanctis
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - F Capaccioni
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - M Ciarniello
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - G Filacchione
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - M Formisano
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - S Mottola
- Institute for Planetary Research, DLR, Rutherfordstraße 2, 12489 Berlin, Germany
| | - A Raponi
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - F Tosi
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - D Bockelée-Morvan
- LESIA-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Paris Diderot, 5 place Jules Janssen, 92195 Meudon, France
| | - S Erard
- LESIA-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Paris Diderot, 5 place Jules Janssen, 92195 Meudon, France
| | - C Leyrat
- LESIA-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Paris Diderot, 5 place Jules Janssen, 92195 Meudon, France
| | - B Schmitt
- Université Grenoble Alpes - CNRS Institut de Planetologie et Astrophysique de Grenoble, Batiment D de Physique, BP 53, 38041 Grenoble Cedex 9, France
| | - E Ammannito
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy.,University of California, Los Angeles, California 90095, USA
| | - G Arnold
- Institute for Planetary Research, DLR, Rutherfordstraße 2, 12489 Berlin, Germany
| | - M A Barucci
- LESIA-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Université Paris Diderot, 5 place Jules Janssen, 92195 Meudon, France
| | - M Combi
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, 2455 Hayward Street, Ann Arbor, Michigan 48109, USA
| | - M T Capria
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - P Cerroni
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - W-H Ip
- National Central University, No. 300, Jhongda Road, Jhongli District, Taoyuan City, 32001 Taipei, Taiwan
| | - E Kuehrt
- Institute for Planetary Research, DLR, Rutherfordstraße 2, 12489 Berlin, Germany
| | - T B McCord
- Bear Fight Institute, 22 Fiddler's Road, Box 667, Winthrop, Washington 98862, USA
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali - INAF, via del fosso del cavaliere 100, 00133 Rome, Italy
| | - P Beck
- Université Grenoble Alpes - CNRS Institut de Planetologie et Astrophysique de Grenoble, Batiment D de Physique, BP 53, 38041 Grenoble Cedex 9, France
| | - E Quirico
- Université Grenoble Alpes - CNRS Institut de Planetologie et Astrophysique de Grenoble, Batiment D de Physique, BP 53, 38041 Grenoble Cedex 9, France
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Mottola S, Arnold G, Grothues HG, Jaumann R, Michaelis H, Neukum G, Bibring JP, Schröder SE, Hamm M, Otto KA, Pelivan I, Proffe G, Scholten F, Tirsch D, Kreslavsky M, Remetean E, Souvannavong F, Dolives B. COMETARY SCIENCE. The structure of the regolith on 67P/Churyumov-Gerasimenko from ROLIS descent imaging. Science 2015; 349:aab0232. [PMID: 26228151 DOI: 10.1126/science.aab0232] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The structure of the upper layer of a comet is a product of its surface activity. The Rosetta Lander Imaging System (ROLIS) on board Philae acquired close-range images of the Agilkia site during its descent onto comet 67P/Churyumov-Gerasimenko. These images reveal a photometrically uniform surface covered by regolith composed of debris and blocks ranging in size from centimeters to 5 meters. At the highest resolution of 1 centimeter per pixel, the surface appears granular, with no apparent deposits of unresolved sand-sized particles. The thickness of the regolith varies across the imaged field from 0 to 1 to 2 meters. The presence of aeolian-like features resembling wind tails hints at regolith mobilization and erosion processes. Modeling suggests that abrasion driven by airfall-induced particle "splashing" is responsible for the observed formations.
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Affiliation(s)
- S Mottola
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany.
| | - G Arnold
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - H-G Grothues
- DLR, Space Management, Space Science. Bonn, Germany
| | - R Jaumann
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany. Freie Universität Berlin, Institute of Geological Sciences, Berlin, Germany
| | - H Michaelis
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - G Neukum
- Freie Universität Berlin, Institute of Geological Sciences, Berlin, Germany
| | - J-P Bibring
- Institute of Space Astrophysics, Orsay, France
| | - S E Schröder
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - M Hamm
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany. Humboldt University Berlin, Germany
| | - K A Otto
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - I Pelivan
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - G Proffe
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - F Scholten
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - D Tirsch
- German Aerospace Center (DLR), Institute of Planetary Research, Berlin, Germany
| | - M Kreslavsky
- Earth and Planetary Sciences, University of California, Santa Cruz, CA, USA
| | - E Remetean
- Centre National d'Études Spatiales, Toulouse, France
| | | | - B Dolives
- Magellium, Ramonville Saint-Agne, France
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Walker GM, Logan P, Gordon AL, Conroy S, Armstrong S, Robertson K, Ward M, Frowd N, Darby J, Arnold G, Gladman JRF. 45 * ARE ACCELEROMETERS A USEFUL WAY TO MEASURE ACTIVITY IN CARE HOME RESIDENTS? Age Ageing 2015. [DOI: 10.1093/ageing/afv032.02] [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: 11/14/2022] Open
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Abstract
As long as the indications and limitations of laser trabeculoplasty have not yet been established by follow-up over several years, conventional surgical filter operation will not be superfluous. The reduction of the complications brought about by introduction of the scleral flap technique is described. Apart from cicatricial obliteration of the filtering zone, bulbar hypotension due to overfiltration as well as to external fistula and above all the resulting ciliary body-choroid detachment still occurs after trephination with the scleral flap (goniotrephination, trabeculectomy). Attention is drawn to the tension of the scleral flap adapted to the normalized intraocular pressure and reliable preclusion of an external fistula by perfusion test at the end of the operation. The membrane formation probably deriving from the internal Tenon's capsule which leads to a 'pseudofiltering bleb' is discussed as a rare complication (1.5%) which is of basic interest.
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Herms W, Arnold G. Diuresis, inulin clearance, sodium reabsorption and oxygen consumption of the isolated erythrocyte-free perfused rabbit kidney. Bibl Haematol 2015; 33:404-7. [PMID: 5384009 DOI: 10.1159/000384862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Capaccioni F, Coradini A, Filacchione G, Erard S, Arnold G, Drossart P, De Sanctis MC, Bockelee-Morvan D, Capria MT, Tosi F, Leyrat C, Schmitt B, Quirico E, Cerroni P, Mennella V, Raponi A, Ciarniello M, McCord T, Moroz L, Palomba E, Ammannito E, Barucci MA, Bellucci G, Benkhoff J, Bibring JP, Blanco A, Blecka M, Carlson R, Carsenty U, Colangeli L, Combes M, Combi M, Crovisier J, Encrenaz T, Federico C, Fink U, Fonti S, Ip WH, Irwin P, Jaumann R, Kuehrt E, Langevin Y, Magni G, Mottola S, Orofino V, Palumbo P, Piccioni G, Schade U, Taylor F, Tiphene D, Tozzi GP, Beck P, Biver N, Bonal L, Combe JP, Despan D, Flamini E, Fornasier S, Frigeri A, Grassi D, Gudipati M, Longobardo A, Markus K, Merlin F, Orosei R, Rinaldi G, Stephan K, Cartacci M, Cicchetti A, Giuppi S, Hello Y, Henry F, Jacquinod S, Noschese R, Peter G, Politi R, Reess JM, Semery A. Cometary science. The organic-rich surface of comet 67P/Churyumov-Gerasimenko as seen by VIRTIS/Rosetta. Science 2015; 347:aaa0628. [PMID: 25613895 DOI: 10.1126/science.aaa0628] [Citation(s) in RCA: 266] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The VIRTIS (Visible, Infrared and Thermal Imaging Spectrometer) instrument on board the Rosetta spacecraft has provided evidence of carbon-bearing compounds on the nucleus of the comet 67P/Churyumov-Gerasimenko. The very low reflectance of the nucleus (normal albedo of 0.060 ± 0.003 at 0.55 micrometers), the spectral slopes in visible and infrared ranges (5 to 25 and 1.5 to 5% kÅ(-1)), and the broad absorption feature in the 2.9-to-3.6-micrometer range present across the entire illuminated surface are compatible with opaque minerals associated with nonvolatile organic macromolecular materials: a complex mixture of various types of carbon-hydrogen and/or oxygen-hydrogen chemical groups, with little contribution of nitrogen-hydrogen groups. In active areas, the changes in spectral slope and absorption feature width may suggest small amounts of water-ice. However, no ice-rich patches are observed, indicating a generally dehydrated nature for the surface currently illuminated by the Sun.
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Affiliation(s)
- F Capaccioni
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy.
| | - A Coradini
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - G Filacchione
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - S Erard
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - G Arnold
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany
| | - P Drossart
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - M C De Sanctis
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - D Bockelee-Morvan
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - M T Capria
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - F Tosi
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - C Leyrat
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - B Schmitt
- Université Grenoble Alpes, CNRS, Institut de Planétologie et d'Astrophysique de Grenoble, Grenoble, France
| | - E Quirico
- Université Grenoble Alpes, CNRS, Institut de Planétologie et d'Astrophysique de Grenoble, Grenoble, France
| | - P Cerroni
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - V Mennella
- Osservatorio di Capodimonte, INAF, Napoli, Italy
| | - A Raponi
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - M Ciarniello
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - T McCord
- Bear Fight Institute, Winthrop, WA 98862, USA
| | - L Moroz
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - E Ammannito
- University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - M A Barucci
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - G Bellucci
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - J Benkhoff
- European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Noordwijk, Netherlands
| | - J P Bibring
- Institut d'Astrophysique Spatial, CNRS, Orsay, France
| | - A Blanco
- Dipartimento di Matematica e Fisica "Ennio De Giorgi," Università del Salento, Italy
| | - M Blecka
- Space Research Centre, Polish Academy of Sciences, Warsaw, Poland
| | - R Carlson
- NASA Jet Propulsion Laboratory, Pasadena, CA 91109, USA
| | - U Carsenty
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany
| | - L Colangeli
- European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Noordwijk, Netherlands
| | - M Combes
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - M Combi
- Space Physics Research Laboratory, The University of Michigan, Ann Arbor, MI 48109, USA
| | - J Crovisier
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - T Encrenaz
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | | | - U Fink
- Lunar Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - S Fonti
- Dipartimento di Matematica e Fisica "Ennio De Giorgi," Università del Salento, Italy
| | - W H Ip
- National Central University, Taipei, Taiwan
| | - P Irwin
- Departement of Physics, Oxford University, Oxford, UK
| | - R Jaumann
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany. Free University of Berlin, Institute of Geosciences, Malteserstraße 74-100, Building Haus A, 12249 Berlin, Germany
| | - E Kuehrt
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany
| | - Y Langevin
- Institut d'Astrophysique Spatial, CNRS, Orsay, France
| | - G Magni
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - S Mottola
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany
| | - V Orofino
- Dipartimento di Matematica e Fisica "Ennio De Giorgi," Università del Salento, Italy
| | - P Palumbo
- Università "Parthenope," Napoli, Italy
| | - G Piccioni
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - U Schade
- Helmholtz-Zentrum Berlin für Materialien und Energie, Berlin, Germany
| | - F Taylor
- Departement of Physics, Oxford University, Oxford, UK
| | - D Tiphene
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - G P Tozzi
- Osservatorio Astrofisico di Arcetri, INAF, Firenze, Italy
| | - P Beck
- Université Grenoble Alpes, CNRS, Institut de Planétologie et d'Astrophysique de Grenoble, Grenoble, France
| | - N Biver
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - L Bonal
- Université Grenoble Alpes, CNRS, Institut de Planétologie et d'Astrophysique de Grenoble, Grenoble, France
| | - J-Ph Combe
- Bear Fight Institute, Winthrop, WA 98862, USA
| | - D Despan
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - E Flamini
- Agenzia Spaziale Italiana, Rome, Italy
| | - S Fornasier
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - A Frigeri
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - D Grassi
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - M Gudipati
- NASA Jet Propulsion Laboratory, Pasadena, CA 91109, USA. Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742, USA
| | - A Longobardo
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - K Markus
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany
| | - F Merlin
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - R Orosei
- Istituto di Radioastronomia, INAF, Bologna, Italy
| | - G Rinaldi
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - K Stephan
- Institute for Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Berlin, Germany
| | - M Cartacci
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - A Cicchetti
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - S Giuppi
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - Y Hello
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - F Henry
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - S Jacquinod
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - R Noschese
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - G Peter
- Institut für Optische Sensorsysteme, DLR, Berlin, Germany
| | - R Politi
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica (INAF), Rome, Italy
| | - J M Reess
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
| | - A Semery
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique, Observatoire de Paris/CNRS/Université Pierre et Marie Curie[acute accent over last letter in "Université"]/Université Paris-Diderot, Meudon, France
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Maek M, Musch M, Arnold G, Kröpfl D. Erratum zu: Peniserhaltende Chirurgie beim primären Harnröhrenkarzinom der penilen Urethra. Urologe A 2014. [DOI: 10.1007/s00120-014-3727-6] [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: 11/29/2022]
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Arnold G, Paal G, Vollmer HP. Untersuchungen am System Spiropyran + Säure ⇄ Farbsalz / Investigations on the System Spiropyran + Acid ⇄ Pyrylium Salt. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1970-1219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We could prove that the system spiropyran/acid/pyrylium salt follows the equilibrium relation Spiropyran+acid ⇄ pyrylium salt.
This color reaction can be used as an indicatory system. In this case the acid has to be produced instandaneously within the system. For this the spiropyran is mixed with a HX-donor which splits off a hydrogen halide HX by uv-irradiation. The coloration mechanism of layers consisting of spiropyran + HX-donor+matric forming polymer depends on the wavelength of the actinic radiation. Long wavelength uv-irradiation shows energy transfer, while only short wavelength uv-irradiation causes the primary process in the HX-donor
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Affiliation(s)
- G. Arnold
- AEG-TELEFUNKEN Forschungsinstitut Ulm
| | - G. Paal
- AEG-TELEFUNKEN Forschungsinstitut Ulm
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Affiliation(s)
- H. Schüler
- Forschungsstelle für Spektroskopie in der Max-Planck-Gesellschaft, Göttingen
| | - G. Arnold
- Forschungsstelle für Spektroskopie in der Max-Planck-Gesellschaft, Göttingen
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Affiliation(s)
- C. Schiele
- Forschungsinstitut der Telefunken AG. Ulm
| | - G. Arnold
- Forschungsinstitut der Telefunken AG. Ulm
| | - H. Kwasny
- Forschungsinstitut der Telefunken AG. Ulm
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Arnold G, Paal G, Vollmer HP. Spektroskopisches Verhalten von o-substituierten Arylvinylpyryliumperchloraten / Spectroscopic Behaviour of o-substituted Arylvinylpyrylium Perchlorates. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1969-0807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The influence of the substituents on the characteristic infrared absorption frequencies and the wavelength of the absorption band in the visible region of o-substituted 2 [β-n-amyl-styryl] -1-benzopyrylium perchlorates and 3[β-n-amyl-1-naphthylvinyl]naphtho[2.1-b]pyrylium perchlorates has been investigated. The observed structural changes have been discussed as a function of the mesomeric effect of the substituents.
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Affiliation(s)
- G. Arnold
- AEG-TELEFUNKEN Forschungsinstitut, Ulm
| | - G. Paal
- AEG-TELEFUNKEN Forschungsinstitut, Ulm
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Abstract
A method is described which allows to observe only primary processes by elimination of secondary and higher processes. The products formed by dissociation of excited cyclohexane molecules are explained by innermolecular elementary processes. Two reaction schemes are discussed for the formation of the observed C2⁻, C3⁻, and C4⁻hydrocarbons, which follow from the C3 : C3⁻ and C4 : C2⁻cleavage. The experimental results establish these two reaction schemes quantitatively.
The processes for the stabilization of the formed biradicals during cleavage of the cyclohexane ring are of equal probability as it is following from the discussed reaction schemes
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Affiliation(s)
- H. Schüler
- Aus der Forschungsstelle für Spektroskopie in der Max-Planck-Gesellschaft, Göttingen
| | - G. Arnold
- Aus der Forschungsstelle für Spektroskopie in der Max-Planck-Gesellschaft, Göttingen
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31
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Abstract
IR- und UV/VIS-spektroskopische Untersuchungen an höher anellierten Trimethylindolinopyranen und substituierten Trimethylindolinobenzopyranen führten zu erweiterten Kenntnissen bezüglich des Verhaltens solcher 5-Ring-N-heterocyclischer Systeme. Aus den IR-spektroskopischen Untersuchungen ging dabei hervor, daß alle bei den hier untersuchten Systemen zu beobachtenden Absorptionen durch die in Diagramm 1 skizzierten Strukturen wesentlich differenzierter beschrieben werden können als es für ein nichtprotoniertes System aus der üblichen hybriden Formulierung heraus möglich ist. Als Normalverhalten solcher Systeme beim Auftreten farbiger Formen ist die bereits von DILTHEY et al.19, 20 formulierte ionoide Dissoziation anzusehen. Das Auftreten chinoider Strukturen entspricht dagegen nicht dem Normalverhalten.
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Affiliation(s)
- C. Schiele
- AEG-TELEFUNKEN Forschungsinstitut Ulm/Donau
| | - G. Arnold
- AEG-TELEFUNKEN Forschungsinstitut Ulm/Donau
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32
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Arnold G, Vollmer HP. Verhalten von Spiropyranschichten gegenüber thermischer Belastung / Behaviour of Spiropyran Films by Thermal Treatment. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1973-11-1216] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The influence of thermal treatment of photochromic spiropyran films has been investigated. The measurements demonstrate that the decompositions of the photochromic films and the different components are changed noticeable at temperatures of 100°C and above.
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Affiliation(s)
- G. Arnold
- AEG-Telefunken, Bereich Forschung und Entwicklung, Ulm
| | - H.-P. Vollmer
- AEG-Telefunken, Bereich Forschung und Entwicklung, Ulm
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33
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Affiliation(s)
- G. Arnold
- Forschungsinstitut der Telefunken AG. Ulm
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34
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Paal G, Arnold G. Zur Darstellbarkeit von 2.2′-disubstituierten 3.3′ - Spirobi- [3H-naphtho(2.1-b)pyranen] / About the Synthesis of 2,2′-Disubstituted 3,3-Spirobi-[3H-naphtho (2,1-b)pyrans]. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1974-3-420] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In both α-positions relative to the spiro-C-atom substituted spirobipyrans have the expected spiropyran structure, in spite of their exceptional behaviour that their pyrylium salts can not be isolated generally. Strong steric effects are responsible for the instability of those pyrylium salts, as it can be shown by UV- and IR-spectroscopic investigations.
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Affiliation(s)
- G. Paal
- AEG-Telefunken Forschungsinstitut Ulm
| | - G. Arnold
- AEG-Telefunken Forschungsinstitut Ulm
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35
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Abstract
Durch systematische Untersuchung von Tetrazoliumsalzen mit verschiedenem Anion wie auch verschiedenem Substituenten am C-Arylrest konnte nachgewiesen werden, daß Tetrazoliumsalze generell in verschiedenen Stereoisomeren erhalten werden können.
Eine Modellvorstellung über die durch den C-Arylsubstituenten induzierten Veränderungen in der Elektronendichte-Verteilung des heterozyklischen Systems führte dabei zu einer vernünftig erscheinenden Interpretation der beobachteten Phänomene.
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Affiliation(s)
- C. Schiele
- Forschungsinstitut der Telefunken AG Ulm
| | - K. Halfar
- Forschungsinstitut der Telefunken AG Ulm
| | - G. Arnold
- Forschungsinstitut der Telefunken AG Ulm
| | | | - A. Wilhelm
- Forschungsinstitut der Telefunken AG Ulm
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36
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Affiliation(s)
- C. Schiele
- Forschungsinstitut der Telefunken AG Ulm/Donau
| | - K. Halfar
- Forschungsinstitut der Telefunken AG Ulm/Donau
| | - G. Arnold
- Forschungsinstitut der Telefunken AG Ulm/Donau
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37
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Arnold G. HBr-Quantenausbeute von mehrfach bromierten organischen Verbindungen in Methanol / HBr Quantum Efficiency of Brominated Organic Compounds in Methanol. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1974-11-1212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Polybrominated HBr-donors were irradiated with UV light of the wavelength λ = 257 nm and 290 nm in methanolic solution and methanolic spiropyran solution. The quantum efficiency of the generation of HBr has been determined and discussed. With spiropyran present in the irradiated solutions the results can be explained only by the assumption of an energy transfer process between spiropyran and HBr-donors.
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Affiliation(s)
- G. Arnold
- AEG-Telefunken Forschungsinstitut Ulm
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38
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Schiele C, Arnold G. Notizen: Über die systemabhängige Veränderung der Bindungsverhältnisse bei Spiropyranen. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1966-0925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- C. Schiele
- Forschungsinstitut der TELEFUNKEN AG, Ulm/Donau
| | - G. Arnold
- Forschungsinstitut der TELEFUNKEN AG, Ulm/Donau
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39
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Benn J, D'Lima D, Moore J, Wei I, Arnold G. ENHANCED FEEDBACK FROM PERIOPERATIVE QUALITY INDICATORS: STUDYING THE IMPACT OF A COMPLEX QUALITY IMPROVEMENT INTERVENTION. BMJ Qual Saf 2014. [DOI: 10.1136/bmjqs-2014-002893.10] [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: 11/04/2022]
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Scheidt CE, Heinen F, Nickel T, Rayki O, Wissel J, Poewe W, Benecke R, Arnold G, Oertel W, Dengler R, Deuschl G. Spasmodic torticollis - a multicentre study on behavioural aspects IV: psychopathology. Behav Neurol 2014; 9:97-103. [PMID: 24487493 DOI: 10.3233/ben-1996-9206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The GSI (General Symptom Index) of the Symptom Checklist 90 R (SCL 90 R) (as a global indicator of the severity of psychiatric symptoms) of 27% of the spasmodic torticollis (ST) sample fell outside the 95% range of the normal control group (two standard deviations). Patients with a higher GSI were younger, more functionally disabled and subject to higher psychosocial stress due to the illness. The highest scores were reached on the subscales of somatization, interpersonal sensitivity and depression. On the depression scale, 23% of the patients' scores were abnormal. This scale correlated significantly with the neurological signs, particularly the TSUI-index and laterocollis. A statistically significant correlation also existed between psychiatric morbidity and a family history of mental disorder. More than 50% of the patients reported that stressful life events had triggered their illness. In order of frequency, a death came first, followed by marital strife, changes in employment and family arguments. The data suggest that psychopathology in ST should generally be considered as a result of a variety of interacting factors, biological, psychological and social.
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Affiliation(s)
- C E Scheidt
- Abteilung für Psychotherapie und Psychosomatik, Universität Freiburg, Germany
| | - F Heinen
- Neurologische Klinik und Poliklinik, Universität Freiburg, Germany
| | - T Nickel
- Abteilung für Psychotherapie und Psychosomatik, Universität Freiburg, Germany
| | - O Rayki
- Abteilung für Psychotherapie und Psychosomatik, Universität Freiburg, Germany
| | - J Wissel
- Neurologische Klinik, Rudolf-Virchow-Krankenhaus, Humboldt-Universität Berlin, Germany
| | - W Poewe
- Neurologische Klinik, Rudolf-Virchow-Krankenhaus, Humboldt-Universität Berlin, Germany
| | - R Benecke
- Neurologische Klinik, Universität Düsseldorf, Germany
| | - G Arnold
- Neurologische Klinik, Ludwig-Maximilians-Universität München, Germany
| | - W Oertel
- Neurologische Klinik, Ludwig-Maximilians-Universität München, Germany
| | - R Dengler
- Neurologische Klinik, Medizinische Hochschule Hannover, Germany
| | - G Deuschl
- Neurologische Klinik und Poliklinik, Universität Freiburg, Germany
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Stuschke M, Abu Jawad J, Eberhardt W, Grehl S, Pöttgen C, Gkika E, Arnold G, Gauler T, Schmeling C, Mohr C. PO-0660: Neoadjuvant TPF-based RT/CT for oral cavity carcinomas increases pathologic remissions and survival. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30778-7] [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: 11/15/2022]
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42
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Arnold G, Schade E, Schneider Y, Friedrichs J, Babick F, Werner C, Rohm H. Influence of Individual Phospholipids on the Physical Properties of Oil-Based Suspensions. J AM OIL CHEM SOC 2013. [DOI: 10.1007/s11746-013-2361-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dietrich M, Nynca J, Arnold G, Ciereszko A. Identification of apolipoproteins AI and AII in carp and rainbow trout seminal plasma. Reprod Biol 2013. [DOI: 10.1016/j.repbio.2013.01.012] [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: 11/25/2022]
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44
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Arnold G, Schuldt S, Schneider Y, Friedrichs J, Babick F, Werner C, Rohm H. The impact of lecithin on rheology, sedimentation and particle interactions in oil-based dispersions. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.11.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Soumyanath A, Dimitrova D, Arnold G, Belding H, Seifer N, Le N, Lou J. P02.186. CAST (Centella asiatica selected triterpenes): stability, safety, and effect on diabetic neuropathy (DN). Altern Ther Health Med 2012. [PMCID: PMC3373754 DOI: 10.1186/1472-6882-12-s1-p242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Abstract
After recent UK policy developments, considerable attention has been focused upon how clinical specialties measure and report on the quality of care delivered to patients. Defining the right indicators alone is insufficient to close the feedback loop. This narrative review aims to describe and synthesize a diverse body of research relevant to the question of how information from quality indicators can be fed back and used effectively to improve care. Anaesthesia poses certain challenges in the identification of valid outcome indicators sensitive to variations in anaesthetic care. Metrics collected during the immediate post-anaesthetic recovery period, such as patient temperature, patient-reported quality of recovery, and pain and nausea, provide potentially useful information for the anaesthetist, yet this information is not routinely fed back. Reviews of the effects of feeding back performance data to healthcare providers suggest that this may result in small to moderate positive effects upon outcomes and professional practice, with stronger effects where feedback is integrated within a broader quality improvement strategy. The dominant model for use of data within quality improvement is based upon the industrial process control approach, in which care processes are monitored continuously for process changes which are rapidly detectable for corrective action. From this review and experience of implementing these principles in practice, effective feedback from quality indicators is timely, credible, confidential, tailored to the recipient, and continuous. Considerable further work is needed to understand how information from quality indicators can be fed back in an effective way to clinicians and clinical units, in order to support revalidation and continuous improvement.
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Affiliation(s)
- J Benn
- Centre for Patient Safety and Service Quality, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK.
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Lou JS, Dimitrova D, Soumyanath A, Belding H, Le N, Seifer N, Arnold G. Centella Asiatica Triterpene Extract Is Effective in Treating Diabetic Neuropathy - A Pilot Study (P03.192). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p03.192] [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: 11/15/2022] Open
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Coradini A, Capaccioni F, Erard S, Arnold G, De Sanctis MC, Filacchione G, Tosi F, Barucci MA, Capria MT, Ammannito E, Grassi D, Piccioni G, Giuppi S, Bellucci G, Benkhoff J, Bibring JP, Blanco A, Blecka M, Bockelee-Morvan D, Carraro F, Carlson R, Carsenty U, Cerroni P, Colangeli L, Combes M, Combi M, Crovisier J, Drossart P, Encrenaz ET, Federico C, Fink U, Fonti S, Giacomini L, Ip WH, Jaumann R, Kuehrt E, Langevin Y, Magni G, McCord T, Mennella V, Mottola S, Neukum G, Orofino V, Palumbo P, Schade U, Schmitt B, Taylor F, Tiphene D, Tozzi G. The Surface Composition and Temperature of Asteroid 21 Lutetia As Observed by Rosetta/VIRTIS. Science 2011; 334:492-4. [DOI: 10.1126/science.1204062] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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50
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Vajda Z, Schmid E, Güthe T, Klötzsch C, Lindner A, Niehaus L, Sperber W, Peters J, Arnold G, Bäzner H, Henkes H. The Modified Bose Method for the Endovascular Treatment of Intracranial Atherosclerotic Arterial Stenoses Using the Enterprise Stent. Neurosurgery 2011; 70:91-101; discussion 101. [DOI: 10.1227/neu.0b013e31822dff0f] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Abstract
BACKGROUND
Balloon dilatation and deployment of a self-expanding stent is a safe treatment for intracranial atherosclerotic stenoses. The significant recurrence rate might be related to the high radial force of the Wingspan stent.
OBJECTIVE
To evaluate the procedural safety and stenosis recurrence rate by the use of a stent with reduced radial force (Enterprise).
METHODS
Two hundred nine atherosclerotic stenoses (189 patients) were treated (median age, 68 years; 132 male) in a single center. Lesion locations included internal carotid artery (n = 27), middle cerebral artery (n = 62), vertebral artery (n = 64), basilar artery (n = 55), and posterior cerebral artery (n = 1). Pre- and postmedication included acetylsalicylic acid and Clopidogrel for at least 12 months. Preprocedural and follow-up examinations included magnetic resonance imaging (MRI), neurological assessment, and digital subtraction angiography (6, 12, 26, and 52 weeks). Data registry included age, sex, normal vessel diameter, degree of stenosis, residual stenosis after stent, minimal in-stent diameter, and occurrence of ischemic symptoms during follow-up.
RESULTS
Median pre- and postprocedural stenosis rate was 65.4 ± 1% vs 25.1 ± 1%. Technical success rate was 100%. Major procedural complications occurred in 16 patients (8.1%). Combined neurological morbidity and mortality rate at 30 days was 2 patients (0.9%). In 174 stenoses (83%) angiographic follow-up was obtained (mean, 10.2 months). A restenosis (>50%) was observed in 43 (24.7%) cases after 4.2 months (mean) with 4 (9.3%) symptomatic lesions. Incidence of recurrent ischemia related to the stented artery was 2.2% during 10.2 months of mean follow-up.
CONCLUSION
Undersized balloon angioplasty and deployment of an Enterprise stent is safe and effective for intracranial stenoses. Follow-up results were equal to or better than those reported for bare-metal balloon-expandable or self-expanding stents and yielded excellent protection from recurrent ischemia.
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Affiliation(s)
- Zsolt Vajda
- Klinik für Neuroradiologie, Katharinenhospital, Klinikum Stuttgart, Stuttgart, Germany
| | - Elisabeth Schmid
- Klinik für Neurologie, Bürgerhospital, Klinikum Stuttgart, Stuttgart, Germany
| | - Thomas Güthe
- Klinik für Neuroradiologie, Katharinenhospital, Klinikum Stuttgart, Stuttgart, Germany
| | | | - Alfred Lindner
- Klinik für Neurologie, Marienhospital Stuttgart, Stuttgart, Germany
| | - Ludwig Niehaus
- Klinik für Neurologie, Klinikum Schloß Winnenden, Winnenden, Germany
| | | | - Jan Peters
- Klinik für Neurologie, Ostalb Klinikum Aalen, Aalen, Germany
| | - Guy Arnold
- Klinik für Neurologie, Klinikum Sindelfingen, Sindelfingen, Germany
| | - Hansjörg Bäzner
- Klinik für Neurologie, Bürgerhospital, Klinikum Stuttgart, Stuttgart, Germany
| | - Hans Henkes
- Klinik für Neuroradiologie, Katharinenhospital, Klinikum Stuttgart, Stuttgart, Germany
- Medizinische Fakultät der Universität Duisburg-Essen, Essen, Germany
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