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Gardner-Buckshaw SL, Perzynski AT, Spieth R, Khaira P, Delos Reyes C, Novak L, Kropp D, Caron A, Boltri JM. Increasing Primary Care Utilization of Medication-Assisted Treatment (MAT) for Opioid Use Disorder. J Am Board Fam Med 2023; 36:251-266. [PMID: 36948541 DOI: 10.3122/jabfm.2022.220281r2] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/21/2022] [Accepted: 12/05/2022] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND With increasing prevalence of opioid use disorders (OUDs) there is an urgent need for OUD trained front line primary care providers (PCPs) who can help improve patient adherence to addiction treatment. Unfortunately, most physicians have had limited training for treating patients with addiction, leaving clinicians under prepared. To address this need, we created a Medication-Assisted Treatment (MAT) training program specifically designed for PCPs. INTERVENTION A 4-hour PCP focused buprenorphine office-based implementation training was designed to supplement the 8-hour SAMHSA DATA 2000 waiver training. The intent of the supplemental training is to increase PCP likelihood of implementing MAT through practical evidenced-based implementation, addressing barriers reported by waivered PCPs. METHODS We developed and validated a new pre- and postsurvey instrument that assesses changes in participants knowledge, skills, and attitudes. Data were entered into REDCap, and composite scales were created and analyzed to determine pre-post differences. RESULTS A total of 183 participants completed pre-post evaluations. Pre-post comparisons indicated substantial improvement in learner levels of confidence in implementing MAT care processes and in their interactions with MAT patients (df = 4, F = 203.518, P < .001). Participants described themselves as more comfortable identifying patients who would benefit from MAT (t = 15.04, P < .001), more competent in implementing MAT (t = 21.27, P < .001) and more willing (t = 15.56, P < .001) to implement MAT after training. CONCLUSION Evidence suggests that a new MAT training program that supplements the SAMHSA waiver training increases confidence and willingness to implement MAT among PCPs. Efforts to replicate this success to allow for further generalization and policy recommendations are warranted.
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Affiliation(s)
- Stacey L Gardner-Buckshaw
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB).
| | - Adam T Perzynski
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
| | - Russell Spieth
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
| | - Poojajeet Khaira
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
| | - Chris Delos Reyes
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
| | - Laura Novak
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
| | - Denise Kropp
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
| | - Aleece Caron
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
| | - John M Boltri
- From the Department of Family and Community Medicine, Northeast Ohio Medical University (SGB); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University, Cleveland, OH (ATP); Adult Behavioral Health, The Centers, Cleveland, OH (RS); Department of Psychiatry, The MetroHealth System, Cleveland, OH (PK); Department of Psychiatry, University Hospitals Cleveland Medical Center, Cleveland, OH (CDR); Summa Health, Barberton Family Medicine Residency Program, Cleveland, OH (LN); Department of Family and Community Medicine, Northeast Ohio Medical University, Rootstown, OH (DK); Center for Health Care Research and Policy within The MetroHealth System, Case Western Reserve University (AC); Department of Family and Community Medicine, Northeast Ohio Medical University (JMB)
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Morante S, Botticelli S, Chiaraluce R, Consalvi V, La Penna G, Novak L, Pasquo A, Petrosino M, Proux O, Rossi G, Salina G, Stellato F. Metal Ion Binding in Wild-Type and Mutated Frataxin: A Stability Study. Front Mol Biosci 2022; 9:878017. [PMID: 35712353 PMCID: PMC9195147 DOI: 10.3389/fmolb.2022.878017] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/12/2022] [Indexed: 11/13/2022] Open
Abstract
This work studies the stability of wild-type frataxin and some of its variants found in cancer tissues upon Co2+ binding. Although the physiologically involved metal ion in the frataxin enzymatic activity is Fe2+, as it is customarily done, Co2+ is most often used in experiments because Fe2+ is extremely unstable owing to the fast oxidation reaction Fe2+ → Fe3+. Protein stability is monitored following the conformational changes induced by Co2+ binding as measured by circular dichroism, fluorescence spectroscopy, and melting temperature measurements. The stability ranking among the wild-type frataxin and its variants obtained in this way is confirmed by a detailed comparative analysis of the XAS spectra of the metal-protein complex at the Co K-edge. In particular, a fit to the EXAFS region of the spectrum allows positively identifying the frataxin acidic ridge as the most likely location of the metal-binding sites. Furthermore, we can explain the surprising feature emerging from a detailed analysis of the XANES region of the spectrum, showing that the longer 81-210 frataxin fragment has a smaller propensity for Co2+ binding than the shorter 90-210 one. This fact is explained by the peculiar role of the N-terminal disordered tail in modulating the protein ability to interact with the metal.
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Affiliation(s)
- S. Morante
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
- *Correspondence: S. Morante ,
| | - S. Botticelli
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - R. Chiaraluce
- Dipartimento di Scienze Biochimiche “A. Rossi Fanelli”, Sapienza Universitá di Roma, Rome, Italy
| | - V. Consalvi
- Dipartimento di Scienze Biochimiche “A. Rossi Fanelli”, Sapienza Universitá di Roma, Rome, Italy
| | - G. La Penna
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
- CNR—Istituto di Chimica dei Composti Organometallici, Firenze, Italy
| | - L. Novak
- Dipartimento di Scienze Biochimiche “A. Rossi Fanelli”, Sapienza Universitá di Roma, Rome, Italy
| | - A. Pasquo
- ENEA CR Frascati, Diagnostics and Metrology Laboratory FSN-TECFIS-DIM, Frascati, Italy
| | - M. Petrosino
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Fribourg, Switzerland
| | - O. Proux
- Observatoire des Sciences de L’Univers de Grenoble, UAR 832 CNRS, Université Grenoble Alpes, Grenoble, France
| | - G. Rossi
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
- Museo Storico della Fisica e Centro Studi e Ricerche E. Fermi, Roma, Italy
| | - G. Salina
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - F. Stellato
- Dipartimento di Fisica, Universitá di Roma Tor Vergata, Rome, Italy
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
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Lindgren N, Novak L, McDaniel M, Swords W. 424: Impact of sequentially introduced non-typeable Haemophilus influenzae and Pseudomonas aeruginosa on CF lungs. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01848-8] [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: 10/20/2022]
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Stenina IA, Yurova PA, Novak L, Achoh AR, Zabolotsky VI, Yaroslavtsev AB. Improvement of ion conductivity and selectivity of heterogeneous membranes by sulfated zirconia modification. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-020-04800-7] [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: 10/22/2022]
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Novak L, Jewell V. The Effect of Education on Knowledge and Perceptions of Nursing Staff Regarding Functional Maintenance Programs: A Pilot Study. Am J Occup Ther 2020. [DOI: 10.5014/ajot.2020.74s1-po9608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Abstract
Date Presented 03/28/20
This mixed-methods research project explored knowledge and perceptions of nursing staff about functional maintenance programs in a skilled-nursing facility and evaluated the effects of increased nursing-staff education. The study consisted of pre- and postsurvey and individual interviews. The results showed an increase in scores for both knowledge and perception questions following an in-service training session. Interviews revealed themes related to program benefits and barriers to implementation.
Primary Author and Speaker: Laura Novak
Contributing Authors: Vanessa Jewell
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Akberova E, Vasil'eva V, Zabolotsky V, Novak L. Effect of the sulfocation-exchanger dispersity on the surface morphology, microrelief of heterogeneous membranes and development of electroconvection in intense current modes. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.08.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Belsher BE, Freed MC, Evatt DP, Engel CC, Liu X, Novak L, Zatzick DF. Population Impact of PTSD and Depression Care for Military Service Members: Reach and Effectiveness of an Enhanced Collaborative Care Intervention. Psychiatry 2018; 81:349-360. [PMID: 30332346 DOI: 10.1080/00332747.2018.1520020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
UNLABELLED Objective: Epidemiologic studies suggest high rates of posttraumatic stress disorder (PTSD) and depression among military members and veterans. To meet the needs of this population, evidence-based treatments are recommended as first-line interventions, based on their clinical efficacy and not the proportion of the target population that the intervention reaches. We apply a public health framework to examine the population impact of an enhanced collaborative care model on a targeted population that takes into account effectiveness and reach. METHODS Using data collected from a 2012 - 2016 randomized trial, the effectiveness of enhanced collaborative care for PTSD and depression was evaluated using probable diagnostic status as the primary outcome. Exclusion criteria were then applied to a 2011 disease registry to examine the representativeness of the trial sample and estimate the potential reach of the intervention. Population impact was derived from the estimated effectiveness and reach of the intervention. RESULTS Enhanced collaborative care was associated with a significantly greater probability of PTSD/depression remission by the end of the trial (conditional effect = -0.066, chisq = 51.1, p < 0.001). Based on the effectiveness and reach of the enhanced intervention, an estimated 250 (out of the 3,436) more Army soldiers with PTSD and/or depression would experience diagnostic remission during the preceding year if the enhanced model was available. CONCLUSION The population framework permits the estimated differential impact of two collaborative care models to inform implementation considerations. These results highlight the value of applying public health models to identify front line treatments.
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Thomas E, Hoepfner L, Schointuch M, Miller K, Straughn J, Leath C, Conner M, Novak L, Boone J, Kim K. Correlation between frozen section and final pathology in women with suspected gynecologic malignancies. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.03.311] [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: 10/19/2022]
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Vassileva J, Rehani M, Kostova-Lefterova D, Al-Naemi HM, Al Suwaidi JS, Arandjic D, Bashier EHO, Kodlulovich Renha S, El-Nachef L, Aguilar JG, Gershan V, Gershkevitsh E, Gruppetta E, Hustuc A, Jauhari A, Kharita MH, Khelassi-Toutaoui N, Khosravi HR, Khoury H, Kralik I, Mahere S, Mazuoliene J, Mora P, Muhogora W, Muthuvelu P, Nikodemova D, Novak L, Pallewatte A, Pekarovič D, Shaaban M, Shelly E, Stepanyan K, Thelsy N, Visrutaratna P, Zaman A. A study to establish international diagnostic reference levels for paediatric computed tomography. Radiat Prot Dosimetry 2015; 165:70-80. [PMID: 25836685 DOI: 10.1093/rpd/ncv116] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The article reports results from the largest international dose survey in paediatric computed tomography (CT) in 32 countries and proposes international diagnostic reference levels (DRLs) in terms of computed tomography dose index (CTDI vol) and dose length product (DLP). It also assesses whether mean or median values of individual facilities should be used. A total of 6115 individual patient data were recorded among four age groups: <1 y, >1-5 y, >5-10 y and >10-15 y. CTDIw, CTDI vol and DLP from the CT console were recorded in dedicated forms together with patient data and technical parameters. Statistical analysis was performed, and international DRLs were established at rounded 75th percentile values of distribution of median values from all CT facilities. The study presents evidence in favour of using median rather than mean of patient dose indices as the representative of typical local dose in a facility, and for establishing DRLs as third quartile of median values. International DRLs were established for paediatric CT examinations for routine head, chest and abdomen in the four age groups. DRLs for CTDI vol are similar to the reference values from other published reports, with some differences for chest and abdomen CT. Higher variations were observed between DLP values, based on a survey of whole multi-phase exams. It may be noted that other studies in literature were based on single phase only. DRLs reported in this article can be used in countries without sufficient medical physics support to identify non-optimised practice. Recommendations to improve the accuracy and importance of future surveys are provided.
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Affiliation(s)
- J Vassileva
- International Atomic Energy Agency, Vienna, Austria
| | - M Rehani
- Harvard Medical School and Massachusetts General Hospital, Boston, USA
| | | | | | - J S Al Suwaidi
- Medical Education Department, Dubai Health Authority, Dubai, UAE
| | - D Arandjic
- Radiation Protection Department, Vinca Institute of Nuclear Sciences, Belgrade, Serbia
| | | | | | - L El-Nachef
- Lebanese Atomic Eneregy Commission, Beirut, Lebanon
| | - J G Aguilar
- National Institute for Nuclear Research, Carretera Mexico-Toluca, La Marquesa, Ocoyoacac, Mexico
| | - V Gershan
- Institute of Physics, Ss Cyril and Methodius University, Skopje, The former Yugoslav Republic of Macedonia
| | | | | | - A Hustuc
- National Centre of Public Health, Chisinau, Republic of Moldova
| | - A Jauhari
- Pusat Kajian Radiografi dan Imajing, Depok, Indonesia
| | | | - N Khelassi-Toutaoui
- Département de Physique Médicale, Centre de Recherche Nucléaire D'Alger, Algiers, Algiers
| | - H R Khosravi
- National Radiation Protection Department, Iranian Nuclear Regulatory Authority, Tehran, Iran
| | - H Khoury
- Universidade Federal de Pernambuco, Cidade Universitaria, Recife PE, Brazil
| | - I Kralik
- State Office for Radiological and Nuclear Safety, Zagreb, Croatia
| | - S Mahere
- Children Clinical University Hospital, Riga, Latvia
| | - J Mazuoliene
- Hospital of Lithuanian University of Health Science Kauno Klinikos, Kaunas, Lithuania
| | - P Mora
- Centro de Investigación en Ciencias Atómicas, Nucleares y Moleculares, Universidad de Costa Rica, San José, Costa Rica
| | - W Muhogora
- Tanzania Atomic Energy Commission, Arusha, Tanzania
| | - P Muthuvelu
- Ministry of Health Malaysia, Putrajaya Wilayah Persekutuan, Malaysia
| | - D Nikodemova
- Slovak Medical University, Limbova, Bratislava, Slovakia
| | - L Novak
- National Radiation Protection Institute, Prague, Czech Republic
| | - A Pallewatte
- Department of Radiology, The National Hospital of Sri Lanka, Colombo, Sri Lanka
| | - D Pekarovič
- Clinical Radiology Institute, University Medical Center, Ljubljana, Slovenia
| | - M Shaaban
- Al-Sabah Hospital, Kuwait City, Kuwait
| | - E Shelly
- Ministry of Health, Medical Technology and Infrastructure Administration, Jerusalem, Israel
| | - K Stepanyan
- Research Center of Radiation Medicine and Burns, Yerevan, Armenia
| | - N Thelsy
- Radiologist Ministry of Health, Yangon, Myanmar
| | - P Visrutaratna
- Faculty of Medicine, Department of Radiology, Chiang Mai University, Chiang Mai, Thailand
| | - A Zaman
- Institute of Nuclear Medicine and Oncology, PAEC, Lahore, Pakistan
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Agnese R, Anderson AJ, Asai M, Balakishiyeva D, Basu Thakur R, Bauer DA, Beaty J, Billard J, Borgland A, Bowles MA, Brandt D, Brink PL, Bunker R, Cabrera B, Caldwell DO, Cerdeno DG, Chagani H, Chen Y, Cherry M, Cooley J, Cornell B, Crewdson CH, Cushman P, Daal M, DeVaney D, Di Stefano PCF, Silva EDCE, Doughty T, Esteban L, Fallows S, Figueroa-Feliciano E, Godfrey GL, Golwala SR, Hall J, Hansen S, Harris HR, Hertel SA, Hines BA, Hofer T, Holmgren D, Hsu L, Huber ME, Jastram A, Kamaev O, Kara B, Kelsey MH, Kenany S, Kennedy A, Kiveni M, Koch K, Leder A, Loer B, Lopez Asamar E, Mahapatra R, Mandic V, Martinez C, McCarthy KA, Mirabolfathi N, Moffatt RA, Nelson RH, Novak L, Page K, Partridge R, Pepin M, Phipps A, Platt M, Prasad K, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Resch RW, Ricci Y, Ruschman M, Saab T, Sadoulet B, Sander J, Schmitt RL, Schneck K, Schnee RW, Scorza S, Seitz DN, Serfass B, Shank B, Speller D, Tomada A, Upadhyayula S, Villano AN, Welliver B, Wright DH, Yellin S, Yen JJ, Young BA, Zhang J. Search for low-mass weakly interacting massive particles with SuperCDMS. Phys Rev Lett 2014; 112:241302. [PMID: 24996080 DOI: 10.1103/physrevlett.112.241302] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Indexed: 06/03/2023]
Abstract
We report a first search for weakly interacting massive particles (WIMPs) using the background rejection capabilities of SuperCDMS. An exposure of 577 kg days was analyzed for WIMPs with mass <30 GeV/c(2), with the signal region blinded. Eleven events were observed after unblinding. We set an upper limit on the spin-independent WIMP-nucleon cross section of 1.2×10(-42) cm(2) at 8 GeV/c(2). This result is in tension with WIMP interpretations of recent experiments and probes new parameter space for WIMP-nucleon scattering for WIMP masses <6 GeV/c(2).
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Affiliation(s)
- R Agnese
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - A J Anderson
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Asai
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - D Balakishiyeva
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - R Basu Thakur
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - D A Bauer
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Beaty
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - J Billard
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Borgland
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - M A Bowles
- Department of Physics, Syracuse University, Syracuse, New York 13244, USA
| | - D Brandt
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - P L Brink
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - R Bunker
- Department of Physics, Syracuse University, Syracuse, New York 13244, USA
| | - B Cabrera
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - D O Caldwell
- Department of Physics, University of California, Santa Barbara, California 93106, USA
| | - D G Cerdeno
- Departamento de Física Teórica and Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - H Chagani
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Y Chen
- Department of Physics, Syracuse University, Syracuse, New York 13244, USA
| | - M Cherry
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - J Cooley
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - B Cornell
- Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - C H Crewdson
- Department of Physics, Queen's University, Kingston, Ontario K7 L 3N6, Canada
| | - P Cushman
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - M Daal
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - D DeVaney
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - P C F Di Stefano
- Department of Physics, Queen's University, Kingston, Ontario K7 L 3N6, Canada
| | - E Do Couto E Silva
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - T Doughty
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - L Esteban
- Departamento de Física Teórica and Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - S Fallows
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - E Figueroa-Feliciano
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G L Godfrey
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - S R Golwala
- Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - J Hall
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - S Hansen
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H R Harris
- Department of Physics, Texas A&M University, College Station, Texas 77843, USA
| | - S A Hertel
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B A Hines
- Department of Physics, University of Colorado Denver, Denver, Colorado 80217, USA
| | - T Hofer
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - D Holmgren
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Hsu
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M E Huber
- Department of Physics, University of Colorado Denver, Denver, Colorado 80217, USA
| | - A Jastram
- Department of Physics, Texas A&M University, College Station, Texas 77843, USA
| | - O Kamaev
- Department of Physics, Queen's University, Kingston, Ontario K7 L 3N6, Canada
| | - B Kara
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - M H Kelsey
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - S Kenany
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - A Kennedy
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - M Kiveni
- Department of Physics, Syracuse University, Syracuse, New York 13244, USA
| | - K Koch
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - A Leder
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Loer
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - E Lopez Asamar
- Departamento de Física Teórica and Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - R Mahapatra
- Department of Physics, Texas A&M University, College Station, Texas 77843, USA
| | - V Mandic
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - C Martinez
- Department of Physics, Queen's University, Kingston, Ontario K7 L 3N6, Canada
| | - K A McCarthy
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - N Mirabolfathi
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - R A Moffatt
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - R H Nelson
- Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - L Novak
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - K Page
- Department of Physics, Queen's University, Kingston, Ontario K7 L 3N6, Canada
| | - R Partridge
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - M Pepin
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - A Phipps
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - M Platt
- Department of Physics, Texas A&M University, College Station, Texas 77843, USA
| | - K Prasad
- Department of Physics, Texas A&M University, College Station, Texas 77843, USA
| | - M Pyle
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - H Qiu
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - W Rau
- Department of Physics, Queen's University, Kingston, Ontario K7 L 3N6, Canada
| | - P Redl
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - A Reisetter
- Department of Physics, University of Evansville, Evansville, Indiana 47722, USA
| | - R W Resch
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Y Ricci
- Department of Physics, Queen's University, Kingston, Ontario K7 L 3N6, Canada
| | - M Ruschman
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Saab
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - B Sadoulet
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA and Department of Physics, University of California, Berkeley, California 94720, USA
| | - J Sander
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - R L Schmitt
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - K Schneck
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - R W Schnee
- Department of Physics, Syracuse University, Syracuse, New York 13244, USA
| | - S Scorza
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - D N Seitz
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - B Serfass
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - B Shank
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - D Speller
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - A Tomada
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - S Upadhyayula
- Department of Physics, Texas A&M University, College Station, Texas 77843, USA
| | - A N Villano
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - B Welliver
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - D H Wright
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - S Yellin
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J J Yen
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - B A Young
- Department of Physics, Santa Clara University, Santa Clara, California 95053, USA
| | - J Zhang
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
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11
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Zabolotskii VI, Pis’menskii VF, Demina OA, Novak L. Effect of concentration polarization on electrodialytic concentrating of dilute NaCl and NH4NO3 solutions. RUSS J ELECTROCHEM+ 2013. [DOI: 10.1134/s1023193513060153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Trianni A, Farah J, Carinou E, Clairand I, Dabin J, Deangelis C, Domienik J, Knezevic Z, Kopec R, Malchair F, Negri A, Novak L, Siiskonen T, Vanhavere F. TU-A-116-11: Maximum Patient Skin Dose From Interventional Radiology Procedures and Definition of Alert Thresholds. Med Phys 2013. [DOI: 10.1118/1.4815358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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13
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Farah J, Trianni A, Carinou E, Dabin J, Deangelis C, Domienik J, Knezevic Z, Kopec R, Malchair F, Negri A, Novak L, Siiskonen T, Vanhavere F, Clairand I. SU-E-I-28: Assessment of Maximum Patient Skin Dose for Interventional Radiology Procedures: Method and Uncertainty Analysis. Med Phys 2013. [DOI: 10.1118/1.4814138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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14
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Sukupova L, Novak L, Kala P, Cervinka P, Stasek J. Patient skin dosimetry in interventional cardiology in the Czech Republic. Radiat Prot Dosimetry 2011; 147:106-110. [PMID: 21757443 DOI: 10.1093/rpd/ncr284] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this study, skin dosimetry of patients undergoing interventional cardiology procedures is presented. Three hospitals were included. Two methods were used for skin dosimetry--radiochromic dosimetry films and reconstruction of skin dose distribution based on examination protocol. Maximum skin doses (MSD) obtained from both methods were compared for 175 patients. For patients for whom the film MSD was >1 Gy, the reconstruction MSD differed from the film MSD in the range of ± 50 % for 83 % of patients. For remaining patients, the difference was higher and it was caused by longer fluoroscopy time. For 59 patients for whom the cumulative dose was known, the cumulative dose was compared with the film MSD. Skin dosimetry with radiochromic films is more accurate than the reconstruction method, but films do not include X-ray fields from lateral projections whilest reconstructions do.
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Affiliation(s)
- L Sukupova
- National Radiation Protection Institute, Bartoskova 28, 140 00 Prague 4, Czech Republic.
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15
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Dufek V, Horakova I, Novak L. Organ and effective doses from verification techniques in image-guided radiotherapy. Radiat Prot Dosimetry 2011; 147:277-280. [PMID: 21816726 DOI: 10.1093/rpd/ncr335] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The purpose of this work was an evaluation of organ doses and effective doses from three verification techniques in Image-Guided Radiotherapy: from kilovoltage (kV) cone beam computed tomography (CBCT) scans, from two orthogonal kV images and from two orthogonal megavoltage (MV) images for two different treatment sites: pelvis and head and neck (H&N). For comparison reasons, organ doses and effective doses from prostate and H&N radiotherapy were also evaluated. Measurements of organ doses were performed in a male anthropomorphic Rando phantom by means of thermoluminescent dosemeters. In this investigation, measured organ doses from one CBCT scan, from two MV images and from two kV images of pelvis represent typically 1-6, 1-10 and 0.05-1 %, respectively, of organ doses resulting from one fraction of prostate radiotherapy. The maximum effective doses from CBCT scans, kV images and MV images of pelvis are 5.6, 0.8 and 11.9 mSv, respectively.
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Affiliation(s)
- V Dufek
- National Radiation Protection Institute, Bartoskova 28, 14000 Prague, Czech Republic.
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16
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Simonelis J, Njelesani J, Novak L, Kuzma C, Cameron D. International fieldwork placements and occupational therapy: Lived experiences of the major stakeholders. Aust Occup Ther J 2011; 58:370-7. [DOI: 10.1111/j.1440-1630.2011.00942.x] [Citation(s) in RCA: 24] [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: 11/28/2022]
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17
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Mangieri D, Palmisano A, Libri I, Corradi D, Carnevali ML, Buzio C, Vaglio A, Zikou X, Rousouli K, Tellis C, Tselepis A, Siamopoulos K, Zawada AM, Rogacev KS, Rotter B, Winter P, Marell RR, Fliser D, Heine GH, Fligny C, Milon M, Huang J, Schordan S, Mesnard L, Endlich N, Tharaux PL, Yurkevich M, Komissarov K, Pilotovich V, Zafranskaya M, Smykal-Jankowiak K, Niemir Z, Polcyn-Adamczak M, Szramka-Pawlak B, Zaba R, Wornle M, Ribeiro A, Merkle M, Hiemstra TF, Charles PD, Hester SS, Al-Lamki R, Su Y, Robinson C, Floto RA, Lilley KS, Karet FE, Wu CC, Lu KC, Chen JS, Lin YF, Sytwu HK, Esposito P, Gabanti E, Bianzina S, Rampino T, Dal Canton A, Hung KY, Lang CL, Lu KC, Liu SY, Rakityanskaya I, Ryabova T, Novak J, Suzuki H, Yamada K, Moldoveanu Z, Takahashi K, Horynova M, Novakova J, Julian BA, Novak L, Poulsen K, Kilian M, Gharavi AG, Renfrow MB, Mestecky J, Raska M, Camilla R, Loiacono E, Dapra V, Morando L, Peruzzi L, Conrieri M, Bianciotto M, Bosetti FM, Gallo R, Amore A, Coppo R, Ito S, Higuchi Y, Nishijima F, Yamato H, Ishii H, Yoshida M, Na KY, Oh SW, Chin HJ, Chae DW, Oh YK, Joo KW, Han JS, Mazanowska O, Kaminska D, Krajewska M, Zabinska M, Kopec W, Boratynska M, Klinger M, Wornle M, Merkle M, Ribeiro A, Cohen G, Raupachova J, Borchhardt K, Horl WH, Pletinck A, Glorieux G, Schepers E, Van Landschoot M, Van De Voorde J, Van Biesen W, Vanholder R, Bansal V, Davis R, Litinas E, Hoppensteadt D, Fareed J, Abdgawad M, Gunnarsson L, Segelmark M, Hellmark T, Izuka I, Quinto B, Goes M, Monte J, Pavao O, Santos B, Pereira V, Dalboni M, Cendoroglo M, Batista M, Quinto B, Goes M, Izuka I, Monte J, Durao M, Pavao O, Pereira V, Dalboni M, Cendoroglo M, Batista M, Lai CF, Lin SL, Chen YM, Chiang WC, Wu KD, Kuo ML, Tsai TJ. Immune and inflammatory mechanisms. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.53] [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: 11/14/2022] Open
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18
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Ahmed Z, Akerib DS, Arrenberg S, Attisha MJ, Bailey CN, Baudis L, Bauer DA, Beaty J, Brink PL, Bruch T, Bunker R, Burke S, Cabrera B, Caldwell DO, Cooley J, Cushman P, Dejongh F, Dragowsky MR, Duong L, Emes J, Figueroa-Feliciano E, Filippini J, Fritts M, Gaitskell RJ, Golwala SR, Grant DR, Hall J, Hennings-Yeomans R, Hertel S, Holmgren D, Huber ME, Mahapatra R, Mandic V, McCarthy KA, Mirabolfathi N, Nelson H, Novak L, Ogburn RW, Pyle M, Qiu X, Ramberg E, Rau W, Reisetter A, Saab T, Sadoulet B, Sander J, Schmitt R, Schnee RW, Seitz DN, Serfass B, Sirois A, Sundqvist KM, Tarka M, Tomada A, Wang G, Yellin S, Yoo J, Young BA. Search for weakly interacting massive particles with the first five-tower data from the cryogenic dark matter search at the soudan underground laboratory. Phys Rev Lett 2009; 102:011301. [PMID: 19257177 DOI: 10.1103/physrevlett.102.011301] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Indexed: 05/27/2023]
Abstract
We report results from the Cryogenic Dark Matter Search at the Soudan Underground Laboratory (CDMS II) featuring the full complement of 30 detectors. A blind analysis of data taken between October 2006 and July 2007 sets an upper limit on the weakly interacting massive particle (WIMP) nucleon spin-independent cross section of 6.6x10;{-44} cm;{2} (4.6x10;{-44} cm;{2} when combined with previous CDMS II data) at the 90% confidence level for a WIMP mass of 60 GeV/c;{2}. This achieves the best sensitivity for dark matter WIMPs with masses above 44 GeV/c;{2}, and significantly restricts the parameter space for some favored supersymmetric models.
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Affiliation(s)
- Z Ahmed
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
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Cocaign-Bousquet M, Garrigues C, Novak L, Lindley N, Loublere P. Rational development of a simple synthetic medium for the sustained growth ofLactococcus lactis. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1995.tb03131.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Mestecky J, Tomana M, Moldoveanu Z, Julian BA, Suzuki H, Matousovic K, Renfrow MB, Novak L, Wyatt RJ, Novak J. Role of aberrant glycosylation of IgA1 molecules in the pathogenesis of IgA nephropathy. Kidney Blood Press Res 2008; 31:29-37. [PMID: 18182777 DOI: 10.1159/000112922] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2007] [Accepted: 11/02/2007] [Indexed: 01/29/2023] Open
Abstract
Studies of the properties of immune complexes (IC) in the circulation, urine, and mesangium of IgA nephropathy (IgAN) patients have provided data relevant to the pathogenesis of this disease. IC contain predominantly polymeric IgA1 molecules which are deficient in galactose (Gal) residues on O-linked glycan chains in the hinge region (HR) of their heavy (H) chains. As a result of this aberrancy, a novel antigenic determinant(s) involving N-acetylgalactosamine (GalNAc) and perhaps sialic acid (SA) of O-linked glycans is generated and recognized by naturally occurring GalNAc-specific antibodies. Thus, IC in IgAN consist of Gal-deficient IgA1 molecules as an antigen, and GalNAc-specific IgG and/or IgA1 as an antibody. IgG antibodies to Gal-deficient IgA1 are probably induced by cross-reactive microbial antigens; they are present at variable levels not only in humans with or without IgAN but also in many phylogenetically diverse vertebrate species. Incubation of human mesangial cells with IC from sera of IgAN patients indicated that stimulation of cellular proliferative activity was restricted to the large (>800 kDa) complexes. These findings suggest that experimental approaches that prevent the formation of large Gal-deficient IgA1-IgG IC may be applied ultimately in an immunologically mediated therapy.
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Affiliation(s)
- J Mestecky
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294-2170, USA.
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Abstract
Previous studies have shown that secondary lymphoid chemokine, CCL21, can be used for modulation of tumor-specific immune responses. Here, using B16F0 melanoma cells stably expressing CCL21 under the control of cytomegalovirus and ubiquitin promoters, we showed that CCL21-activated immune responses depend on the amount of melanoma-derived chemokine, which, in turn, depends on the strength of the promoter. We showed that ubiquitin promoter-driven expression of CCL21 enabled massive infiltration of tumors with CD4(+)CD25(-), CD8(+) T lymphocytes, and CD11c(+) dendritic cells, and consequent activation of cellular and humoral immune responses sufficient for complete rejection of CCL21-positive melanomas within 3 weeks in all tumor-inoculated mice. Mice that rejected CCL21-positive tumors acquired protective immunity against melanoma, which was transferable to naive mice via splenocytes and central memory T cells. Moreover, melanoma-derived CCL21 facilitated immune-mediated remission of preestablished, distant wild-type melanomas. Overall, these results suggest that elevated levels of tumor-derived CCL21 are required for the activation of strong melanoma-specific immune responses and generation of protective immunologic memory. They also open new perspectives for the development of novel vaccination strategies against melanoma, which use intratumoral delivery of the optimized CCL21-encoding vectors in conjunction with DNA-based vaccines.
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Affiliation(s)
- Laura Novak
- Department of Dermatology and Cutaneous Biology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
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22
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Novak L, Dobai J, Nemeth T, Fekete M, Prinzinger A, Csecsei GI. Spinal Extradural Arachnoid Cyst Causing Cord Compression in a 15-Year-Old Girl: A Case Report. ACTA ACUST UNITED AC 2005; 66:43-6. [PMID: 15744629 DOI: 10.1055/s-2004-832474] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [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: 10/25/2022]
Abstract
The authors describe the case of a fifteen-year-old girl with progressive paraparesis of the lower limbs that was caused by an intraspinal extradural dorsal arachnoid cyst at the level of Th 3-6. Diagnosis was established with MRI and MRI myelography. The latter revealed the CSF-like content of the cyst. The patient underwent laminotomy and en bloc resection of the cyst. Ligation of the pedicle of the cyst was done with laminoplasty. Quick and complete recovery was observed after surgery.
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Affiliation(s)
- L Novak
- Department of Neurosurgery, University of Debrecen, Health and Life Sciences Center, Debrecen, Hungary.
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23
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Affiliation(s)
- L Novak
- Department of Neurosurgery, Health and Life Sciences Center, University of Debrecen, Debrecen, Hungary.
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24
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Akerib DS, Alvaro-Dean J, Armel-Funkhouser MS, Attisha MJ, Baudis L, Bauer DA, Beaty J, Brink PL, Bunker R, Burke SP, Cabrera B, Caldwell DO, Callahan D, Castle JP, Chang CL, Choate R, Crisler MB, Cushman P, Dixon R, Dragowsky MR, Driscoll DD, Duong L, Emes J, Ferril R, Filippini J, Gaitskell RJ, Haldeman M, Hale D, Holmgren D, Huber ME, Johnson B, Johnson W, Kamat S, Kozlovsky M, Kula L, Kyre S, Lambin B, Lu A, Mahapatra R, Manalaysay AG, Mandic V, May J, McDonald R, Merkel B, Meunier P, Mirabolfathi N, Morrison S, Nelson H, Nelson R, Novak L, Ogburn RW, Orr S, Perera TA, Perillo Isaac MC, Ramberg E, Rau W, Reisetter A, Ross RR, Saab T, Sadoulet B, Sander J, Savage C, Schmitt RL, Schnee RW, Seitz DN, Serfass B, Smith A, Smith G, Spadafora AL, Sundqvist K, Thompson JPF, Tomada A, Wang G, Williams J, Yellin S, Young BA. First results from the Cryogenic Dark Matter Search in the Soudan Underground Laboratory. Phys Rev Lett 2004; 93:211301. [PMID: 15600991 DOI: 10.1103/physrevlett.93.211301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2004] [Indexed: 05/24/2023]
Abstract
We report the first results from a search for weakly interacting massive particles (WIMPs) in the Cryogenic Dark Matter Search experiment at the Soudan Underground Laboratory. Four Ge and two Si detectors were operated for 52.6 live days, providing 19.4 kg d of Ge net exposure after cuts for recoil energies between 10 and 100 keV. A blind analysis was performed using only calibration data to define the energy threshold and selection criteria for nuclear-recoil candidates. Using the standard dark-matter halo and nuclear-physics WIMP model, these data set the world's lowest exclusion limits on the coherent WIMP-nucleon scalar cross section for all WIMP masses above 15 GeV/c2, ruling out a significant range of neutralino supersymmetric models. The minimum of this limit curve at the 90% C.L. is 4 x 10(-43) cm2 at a WIMP mass of 60 GeV/c2.
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Affiliation(s)
- D S Akerib
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, USA
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25
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Franco V, Feng JA, Perry G, Novak L, Fintel M, Chen YF, Oparil S. 118 IMPAIRED VENTRICULAR FUNCTION AND INCREASED CARDIAC COLLAGEN IN ATRIAL NATRIURETIC PEPTIDE-NULL MICE EXPOSED TO PRESSURE OVERLOAD. J Investig Med 2004. [DOI: 10.1136/jim-52-suppl1-671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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26
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Franco V, Feng JA, Perry G, Novak L, Fintel M, Chen YF, Oparil S. 278 IMPAIRED VENTRICULAR FUNCTION AND INCREASED CARDIAC COLLAGEN IN ATRIAL NATRIURETIC PEPTIDE-NULL MICE EXPOSED TO PRESSURE OVERLOAD. J Investig Med 2004. [DOI: 10.1136/jim-52-suppl1-831] [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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27
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Franco V, Feng JA, Perry G, Novak L, Fintel M, Chen YF, Oparil S. IMPAIRED VENTRICULAR FUNCTION AND INCREASED CARDIAC COLLAGEN IN ATRIAL NATRIURETIC PEPTIDE-NULL MICE EXPOSED TO PRESSURE OVERLOAD. J Investig Med 2004. [DOI: 10.1097/00042871-200401001-00671] [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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28
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Novak L. Heat exchange between the organism and environment under conditions of weightlessness; methodical approach. Life Sci Space Res 2003; 14:329-33. [PMID: 12678117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The spontaneous streaming of air around surfaces of warm bodies conditioned by gravitation is missing in the weightless condition. This implies a change in the thickness of the surface air layer and its interference with the heat output of an organism. The paper describes the use of an electric dynamic katathermometer (EDK) for automatic and continuous scanning of heat output and presents results of measuring basic characteristics of the surface layer under defined laboratory conditions, and their relation to heat output.
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Affiliation(s)
- L Novak
- Institute of Biophysics, Czechoslovak Academy of Sciences, Brno, Czechoslovakia
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29
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Novak L, Misustova J. Respiratory gas exchange as an indicator of changed radioresistance in mammals. Life Sci Space Res 2003; 12:125-8. [PMID: 12691112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The paper deals with the problem of detection of radio-protective effects during irradiation. The method used is based on the fact that the known effective pharmacological and chemical radioprotectives (aminoethylthiouronium bromide HBr (AET), cystamine, sodium fluoroacetate (FAc), 5-hydroxytryptamine (5-HT), 5-methoxytryptamine (5-MT) and others) interfere directly or indirectly with enzymatic steps in energy metabolism of the organism. In mammals they induce at the same time an increase of resistance against ionizing radiation and a decrease in the respiratory gas exchange expressed by a depressed oxygen consumption. In experiments carried out on male mice of the H strain and male rats of the Wistar strain it was found that animals respiring a hypoxic mixture (5-8% O2, STPD), have a lower oxygen consumption during the period of increased radioresistance similar to that seen during the effect of radioprotective drugs. This finding is of practical importance as it enables one to evaluate quantitatively the effect of radioprotective measures (including the hypoxia) in individual experimental animals during the course of irradiation.
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Affiliation(s)
- L Novak
- Institute of Biophysics, Czechoslovak Academy of Sciences, Brno, Czechoslovakia
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Novak L. Divine secrets of the yo-yo sisterhood. Neonatal Netw 2002; 21:25-31. [PMID: 12514986 DOI: 10.1891/0730-0832.21.7.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Novak L, Shackford SR, Bourguignon P, Nichols P, Buckingham S, Osler T, Sartorelli K. Comparison of standard and alternative prehospital resuscitation in uncontrolled hemorrhagic shock and head injury. J Trauma 1999; 47:834-44. [PMID: 10568709 DOI: 10.1097/00005373-199911000-00003] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Recently acquired data suggest that prehospital fluid resuscitation may worsen outcome of patients with penetrating torso trauma. In patients with head injury, delayed resuscitation (DR) could lead to secondary cerebral ischemia. We hypothesized that standard prehospital resuscitation (SPR) with lactated Ringer's solution or diaspirin cross-linked hemoglobin would reduce secondary cerebral ischemia compared with DR. METHODS Anesthetized swine were randomized to receive SPR, diaspirin cross-linked hemoglobin, or DR after cryogenic brain injury and uncontrolled hemorrhagic shock and studied for 70 minutes after the combined insults. RESULTS Hemorrhage volume was lowest in the DR group (p<0.05). There were no significant differences between the groups in systemic or cerebral oxygen delivery. Intracranial pressure was lower and cerebral perfusion pressure higher in the diaspirin cross-linked hemoglobin group compared with SPR (p<0.05). Lesion size was greatest in the SPR group, but the difference was not significant. CONCLUSION In this model, SPR leads to secondary cerebral ischemia. DR is no worse and may be superior to conventional prehospital resuscitation with lactated Ringer's solution.
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Affiliation(s)
- L Novak
- Medical Center Hospital - Vermont, Burlington, USA
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Affiliation(s)
- K S Freed
- Duke University Medical Center, Durham, NC 27710, USA
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Szabo S, Sheth RN, Novak L, Rozsa L, Ficzere A. Cerebrovascular reserve capacity many years after vasospasm due to aneurysmal subarachnoid hemorrhage. A transcranial Doppler study with acetazolamide test. Stroke 1997; 28:2479-82. [PMID: 9412636 DOI: 10.1161/01.str.28.12.2479] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [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: 02/05/2023]
Abstract
BACKGROUND AND PURPOSE Vasospasm in aneurysmal subarachnoid hemorrhage results in proliferative vasculopathy. Systemic hypertension also causes vascular hypertrophy. Both of these histological changes can lead to rigidity of the cerebrovascular system, reducing its autoregulatory capacity. METHODS Blood flow velocity (BFV) in the middle cerebral artery at rest and cerebrovascular reserve capacity (CVRC) (percent rise in BFV after acetazolamide stimulation) measured by means of transcranial Doppler sonography were studied many years after aneurysmal subarachnoid hemorrhage in patients with proven cerebral vasospasm (mean BFV > 160 cm/s). The BFV under resting conditions and the CVRC values of the ipsilateral and the contralateral hemispheres were measured in 29 patients (mean age, 43 years; mean follow-up, 4.6 years) and compared with those of control subjects. RESULTS Persistent high BFV (> 120 cm/s) was found in three patients in the peripheral branch of the ipsilateral middle cerebral artery. In the main trunks of the arteries of the anterior circle of Willis, BFV was normal in all cases. CVRC was normal in all patients (ipsilateral, 52 +/- 21%; contralateral, 56 +/- 17%); values did not differ significantly from each other or from the control value (45 +/- 18%). The higher value of CVRC on the contralateral side was found to be statistically significant in selected groups (hypertensive patients and patients with residual infarct on late CT). CONCLUSIONS Proliferative vasculopathy developed at the time of vasospasm must have resolved and did not reduce late vasoreactivity. Comorbidity with hypertension also did not seem to influence the late vasoreactivity toward normalization.
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Affiliation(s)
- S Szabo
- Department of Neurosurgery, Medical School University of Debrecen, Hungary. szabo64lib.dote.hu
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Ben-Shahar S, Cassouto B, Novak L, Porgador A, Reiss Y. Production of a specific major histocompatibility complex class I-restricted epitope by ubiquitin-dependent degradation of modified ovalbumin in lymphocyte lysate. J Biol Chem 1997; 272:21060-6. [PMID: 9261108 DOI: 10.1074/jbc.272.34.21060] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [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: 02/05/2023] Open
Abstract
Peptide epitopes presented through class I major histocompatability complex (MHC class I) on the cell surface, are generated by proteolytic processing of protein-antigens in the cytoplasm. The length and amino acid sequence determine whether a given peptide can fit into the peptide binding groove of class I heavy chain molecules and subsequently be presented to the immune system. The mode of action of the processing pathway is therefore of great interest. To study the processing mechanism of MHC class I-restricted intracellular antigens, we reconstituted the proteolytic processing of a model antigen in a cell-free system. Incubation of oxidized and urea-treated OVA in lymphocyte lysate resulted in partial degradation of the antigen. Degradation of the antigen depended on the presence of ATP. Addition of methylated ubiquitin abolished the reaction which was then restored by addition of an excess of native ubiquitin, indicating that the breakdown of the antigen in lymphocyte lysate is mediated by the ubiquitin proteolytic system. Upon incubation of modified OVA in lymphocyte lysate, a specific antigenic peptide was generated. The peptide was recognized by cytotoxic T lymphocytes directed against OVA-derived, H-2Kb-restricted peptide (SIINFEKL), and by a monoclonal antibody that recognizes cell-bound Kb-SIINFEKL complexes. Formation of the peptide epitope depended on the presence of ATP and ubiquitin. These results indicate that proteolytic processing of modified OVA is carried out by the ubiquitin-mediated degradation system. The experimental system described provides a tool to analyze the molecular mechanisms underlying the generation of specific, MHC class I-restricted peptide epitopes.
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Affiliation(s)
- S Ben-Shahar
- Department of Biochemistry, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
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Novak L, Cocaign-Bousquet M, Lindley ND, Loubiere P. Metabolism and Energetics of Lactococcus lactis during Growth in Complex or Synthetic Media. Appl Environ Microbiol 1997; 63:2665-70. [PMID: 16535643 PMCID: PMC1389198 DOI: 10.1128/aem.63.7.2665-2670.1997] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
When Lactococcus lactis was grown in various complex or synthetic media, the fermentation of glucose remained homolactic whatever the medium used, with a global carbon balance of about 87%. Moreover, the nitrogen balance was not equilibrated, indicating that some amino acids led to the production of unknown nitrogen-containing carbon compounds while part of the glucose might contribute to anabolic pathways. In minimal medium containing six amino acids, a high concentration of serine was deaminated to pyruvate. This did not occur in more complete media, suggesting the presence of a regulation of this phenomenon by an amino acid. Ammonia produced during serine consumption was partly reconsumed after serine exhaustion. The values for biomass yield and biomass yield relative to ATP (Y(infATP)), the maximal growth rate, the specific rate of glucose consumption, and the corresponding rate of ATP synthesis all increased with the complexity of the medium, amino acid composition having the most pronounced effect. The Y(infATP) values were shown to range from 6.6 to 17.6 g of biomass(middot)mol of ATP(sup-1) on minimal and complex media.
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Cherlow JM, Sather H, Steinherz P, Gaynon P, Tubergen D, Trigg M, Novak L, Bleyer WA. Craniospinal irradiation for acute lymphoblastic leukemia with central nervous system disease at diagnosis: a report from the Children's Cancer Group. Int J Radiat Oncol Biol Phys 1996; 36:19-27. [PMID: 8823255 DOI: 10.1016/s0360-3016(96)00272-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE This study attempted to determine if central nervous system (CNS) disease at diagnosis is a poor prognostic factor in children with acute lymphoblastic leukemia (ALL) and whether 6 Gy of spinal irradiation is an adequate dose for these patients. METHODS AND MATERIALS Previously the Children's Cancer Group (CCG) treated patients with ALL and CNS disease at diagnosis with cranio (24 Gy)-spinal (12 Gy) irradiation, as well as systemic and intrathecal chemotherapy. In a series of CCG trials completed in 1989 the spinal dose was empirically reduced to 6 Gy for patients receiving systemic chemotherapy with an intensive consolidation phase to limit hematopoietic toxicity. The spinal dose was left at 12 Gy for patients treated with a less intensive consolidation phase. RESULTS With a median follow-up for surviving patients of 74 months, the 5-year event-free survival for 53 patients with CNS disease at diagnosis was 69 +/- 13% (+/- 2 standard deviations), similar to the value obtained for 3364 patients without CNS disease, 67 +/- 2%. Corresponding values for 5-year survival were 77 +/- 12% and 80 +/- 1%, and for freedom from isolated first CNS relapse, were 90 +/- 9% and 94 +/- 1%. Event-free survival, survival, and freedom from isolated first CNS relapse in the 6-Gy group were as good as in the 12-Gy group. CONCLUSION CNS disease at diagnosis is not a poor prognostic factor for children with ALL who are treated with intensive systemic chemotherapy, craniospinal irradiation, and intrathecal chemotherapy. Six Gy is an adequate dose of spinal irradiation for these patients.
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Affiliation(s)
- J M Cherlow
- Radiation Oncology, Long Beach Memorial Medical Center, CA, USA
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Loubière P, Novak L, Cocaign-Bousquet M, Lindley ND. Besoins nutritionnels des bactéries lactiques: interactions entre flux de carbone et d'azote. ACTA ACUST UNITED AC 1996. [DOI: 10.1051/lait:19961-21] [Citation(s) in RCA: 7] [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: 11/14/2022]
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Abstract
We investigated the influence of various nonoccupational factors on blood lead levels (PbB) in a sample from the general population of southern Germany. Some 1703 men and 1661 women, aged 28-67 years, were examined in the first follow-up examination of the MONICA Augsburg cohort study in 1987-1988. Their mean PbB was 90 micrograms/l (SD:35.9) for men and 65 micrograms/l (26.4) for women. Only 5% of the men and 1% of all women exceeded a PbB level of 150 micrograms/l indicating low-level lead exposure in this population. Blood lead was significantly associated with haematocrit values (P < 0.001) and the shape of this association was curvilinear. Per gram of alcohol consumed, intake of beer had a lower impact on PbB than wine, presumably due to differential lead content in these alcoholic beverages. The alcohol-PbB associations were stronger for women than for men. The impact of smoking was generally moderate but again more prominent in women. In particular, the covariate adjusted odds ratios for women of childbearing age (28-47 years) to have PbB levels above 100 micrograms/l were 2.5 (95% confidence interval (CI): 1.3-4.7) for smoking versus non-smoking females, 2.6 (95% CI: 1.1-6.0) for women drinking up to 40 g alcohol/day compared to abstainers, and 8.9 (95% CI: 3.2-25.1) for those drinking more than 40 g alcohol/day. Other factors like age, body mass, rural place of residence, and education or job position, had only minor influences on PbB. We conclude that haematocrit values should always be considered as potential confounders in low-level lead exposure research. High alcohol consumption and cigarette smoking are strongly related to elevated blood lead concentrations in the general population and may thereby convey additional health hazards such as impaired child development or blood pressure elevations. This deserves proper public health recognition [corrected].
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Affiliation(s)
- H W Hense
- GSF Research Center for Environment and Health, Institute of Epidemiology, Neuherberg, Germany
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Novak L. Our experience in the evaluation of the thermal comfort during the space flight and in the simulated space environment. Acta Astronaut 1991; 23:179-186. [PMID: 11537122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The paper presents the results of the mathematical modelling the effects of hypogravity on the heat output by the spontaneous convection. The theoretical considerations were completed by the experiments "HEAT EXCHANGE 1" performed on the biosatellite "KOSMOS 936". In the second experiment "HEAT EXCHANGE 2" accomplished on the board of the space laboratory "SALYUT 6" was studied the effect of the microgravity on the thermal state of a man during the space flight. Direct measurement in weightlessness prowed the capacity of the developed electric dynamic katathermometer to check directly the effect of the microgravity on the heat output by the spontaneous convection. The role of the heat partition impairment's in man as by the microgravity, so by the inadequate forced convection are clearly expressed in changes of the skin temperature and the subjective feeling of the cosmonaut's thermal comfort. The experimental extension of the elaborated methods for the flexible adjustment of the thermal environment to the actual physiological needs of man and suggestions for the further investigation are outlined.
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Affiliation(s)
- L Novak
- Department of Physiology, Brno, Czechoslovakia
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Luk'ianiuk VI, Kotovskaia AR, Vil'-Vil'iams IF, Novak L, Pen'iaz I, Mikhaĭlov VM, Pometov ID, Georgievskiĭ VS, Nikolashin GF, Kuzina VI. [Prognostication of man's health status in response to gravity-induced blood shifts based on continuous noninvasive measurement of arterial blood pressure using the Pen'iaz method]. Kosm Biol Aviakosm Med 1990; 24:30-4. [PMID: 2266730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Exposure to +Gz acceleration, orthostatic tilt tests and LBNP tests causes distinct blood shifts and deterioration of cerebral circulation. In this case syncope episodes may be prevented by continuous monitoring of circulation parameters, specifically arterial pressure (AP). Our investigations have shown that continuous AP measurement by the Penjaz noninvasive technique may help earlier prediction of the health status in response to gravity-induced blood shifts. In this situation the development of a pre-collapse state is preceded by an emergence of distinct AP waves of the second-third order accompanied by a critical drop of pulse pressure. It is concluded that continuous AP measurement in the finger according to the Penjaz noninvasive technique holds promise as a medical monitoring method in a altered gravitational field.
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Puza V, Novak L, Komarek S. [Comparison of cytotoxicity of a chemical and a photopolymerizing composite filling material in a in vitro experiment]. Dtsch Stomatol (1990) 1990; 40:357-9. [PMID: 2148496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The authors comparise the toxicity of a photopolymerizing (Silux 3M) and a chemical polymerizing (Silar 3M) composite by unspecific application on an in vitro cell culture of a permanent HEp-2-line. It was observed that a greater and more extensive injury was caused by the photopolymerizing material.
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Affiliation(s)
- V Puza
- Klinik für Stomatologie der Medizinischen Fakultät der Karls-Universität Hradec Králové, CSFR
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Berkowitz RJ, Neuman P, Spalding P, Novak L, Strandjord S, Coccia PF. Developmental orofacial deficits associated with multimodal cancer therapy: case report. Pediatr Dent 1989; 11:227-31. [PMID: 2638010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Multimodal cancer therapy for pediatric head and neck tumors may be associated with significant developmental orofacial morbidity. This report details these effects in a child (C.I.) diagnosed at 2.5 years of age with a rhabdomyosarcoma, primary to the left buccinator. This case is of interest as C.I. has an unaffected identical twin (D.I.) for comparative study. Both were assessed by comparing panoramic radiographs and lateral and frontal tracings of cephalometric radiographs obtained at 8.25 years of age. C.I. had multiple dental anomalies which included agenesis, ectopia, crown malformation, and root malformation. Root malformation, ectopia, and agenesis were restricted to the left dentition, whereas crown malformation was noted bilaterally. C.I. had a generalized craniofacial skeletal hypoplasia relative to D.I. in all three planes, growth defects were greater on the side of the tumor, and the mandible was affected more than the nasomaxillary complex.
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Herzig RH, Coccia PF, Strandjord SE, Warkintin PI, Cheung NK, Gordon EM, Novak L, Shina D. Bone marrow transplantation for acute leukemia and lymphoma with high-dose cytosine arabinoside and total body irradiation. Semin Oncol 1987; 14:139-40. [PMID: 3296203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Novak L, Borecký L, Lipková M, Sekerová Z. [Production of gamma interferon and interleukin 2 in mononuclear spleen cells stimulated with concanavalin A]. Vopr Virusol 1984; 29:603-5. [PMID: 6440360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Relationships between interleukine-2 and interferon production by mononuclear cells of mouse spleens stimulated with concanavalin A were studied.
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Abstract
Rescue operations conducted in toxic atmospheres require respiratory protective equipment capable of providing a very high degree of protection. A slight positive pressure in the facepiece throughout the breathing cycle is used in the pressure-demand, compressed-air breathing apparatus to eliminate any inward leakage. In the present work an inward leakage test with sulphur hexafluoride (SF6) was used to measure facepiece penetration in a pressure-demand system at different work loads. During the test, inspiratory-flow pressure variations within the facepiece and heart rate were also measured. Tests were performed on a dummy head and on two subjects. In some tests a poor face seal was introduced by putting an open tubing with an inner diameter of 2 mm and outer diameter of 3 mm under the sealing edge of the mask. It was found that inward leakage was less than 0.0001% under all conditions as long as facepiece pressure was positive. When facepiece pressure fell below zero, which occurred at inhalation peak flows about 300 L/min, an inward leakage was detected. One subject achieved, at extreme work load, an inhalation peak flow around 450 L/min. These results show that pressure-demand systems should be tested with a breathing machine giving peak flows of at least 300 L/min to ascertain the capability of these systems to maintain positive pressure in the facepiece during hard rescue work.
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Puza V, Zahlavova L, Novak L, Majorova J. [The biological tolerance of Evicrol. In vitro and in vivo studies]. Stomatol DDR 1982; 32:364-73. [PMID: 6956062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Novak L, Prokopova L, Genin AM, Golov VK. [Results of the "heat exchange 1" experiment performed aboard biosatellite "Cosmos-936"]. Kosm Biol Aviakosm Med 1980; 14:73-6. [PMID: 7442120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Rutkevich NM, Novak L, Gavrilova LP. [Factorless ("non-enzymatic") translation of heteropolynucleotides]. Dokl Akad Nauk SSSR 1976; 230:1477-80. [PMID: 976063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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