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Ghanem D, Kagabo W, Engels R, Srikumaran U, Shafiq B. Implementing a Hospitalist Comanagement Service in Orthopaedic Surgery. J Bone Joint Surg Am 2024; 106:823-830. [PMID: 38512993 DOI: 10.2106/jbjs.23.00789] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
➤ Hospitalist comanagement of patients undergoing orthopaedic surgery is a growing trend across the United States, yet its implementation in an academic tertiary care hospital can be complex and even contentious.➤ Hospitalist comanagement services lead to better identification of at-risk patients, optimization of patient care to prevent adverse events, and streamlining of the admission process, thereby enhancing the overall service efficiency.➤ A successful hospitalist comanagement service includes the identification of service stakeholders and leaders; frequent consensus meetings; a well-defined standardized framework, with goals, program metrics, and unified commands; and an occasional satisfaction assessment to update and improve the program.➤ In this article, we establish a step-by-step protocol for the implementation of a comanagement structure between orthopaedic and hospitalist services at a tertiary care center, outlining specific protocols and workflows for patient care and transfer procedures among various departments, particularly in emergency and postoperative situations.
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Affiliation(s)
- Diane Ghanem
- Department of Orthopaedic Surgery, The Johns Hopkins Hospital, Baltimore, Maryland
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Young DL, Hannum SM, Engels R, Colantuoni E, Friedman LA, Hoyer EH. Dynamic Prediction of Post-Acute Care Needs for Hospitalized Medicine Patients. J Am Med Dir Assoc 2024:104939. [PMID: 38387858 DOI: 10.1016/j.jamda.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 10/05/2023] [Accepted: 01/10/2024] [Indexed: 02/24/2024]
Abstract
OBJECTIVES Use patient demographic and clinical characteristics at admission and time-varying in-hospital measures of patient mobility to predict patient post-acute care (PAC) discharge. DESIGN Retrospective cohort analysis of electronic medical records. SETTING AND PARTICIPANTS Patients admitted to the two participating Hospitals from November 2016 through December 2019 with ≥72 hours in a general medicine service. METHODS Discharge location (PAC vs home) was the primary outcome, and 2 time-varying measures of patient mobility, Activity Measure for Post-Acute Care (AM-PAC) Mobility "6-clicks" and Johns Hopkins Highest Level of Mobility, were the primary predictors. Other predictors included demographic and clinical characteristics. For each day of hospitalization, we predicted discharge to PAC using the demographic and clinical characteristics and most recent mobility data within a random forest (RF) for survival, longitudinal, and multivariate (RF-SLAM) data. A regression tree for the daily predicted probabilities of discharge to PAC was constructed to represent a global summary of the RF. RESULTS There were 23,090 total patients and compared to PAC, those discharged home were younger (64 vs 71), had shorter length of stay (5 vs 8 days), higher AM-PAC at admission (43 vs 32), and average AM-PAC throughout hospitalization (45 vs 35). AM-PAC was the most important predictor, followed by age, and whether the patient lives alone. The area under the hospital day-specific receiver operating characteristic curve ranged from 0.76 to 0.79 during the first 5 days. The global summary tree explained 75% of the variation in predicted probabilities for PAC from the RF. Sensitivity (75%), specificity (70%), and accuracy (72%) were maximized at a PAC probability threshold of 40%. CONCLUSIONS AND IMPLICATIONS Daily assessment of patient mobility should be part of routine practice to help inform care planning by hospital teams. Our prediction model could be used as a valuable tool by multidisciplinary teams in the discharge planning process.
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Affiliation(s)
- Daniel L Young
- Department of Physical Therapy, University of Nevada, Las Vegas, Las Vegas, NV, USA; Department of Physical Medicine and Rehabilitation, Johns Hopkins University, Baltimore, MD, USA.
| | - Susan M Hannum
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Rebecca Engels
- Division of Hospital Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elizabeth Colantuoni
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Lisa Aronson Friedman
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Outcomes After Critical Illness and Surgery (OACIS) Group, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Erik H Hoyer
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University, Baltimore, MD, USA; Division of Hospital Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Engels R, Falk L, Albanese M, Keppler OT, Sewald X. LFA1 and ICAM1 are critical for fusion and spread of murine leukemia virus in vivo. Cell Rep 2022; 38:110279. [PMID: 35045303 DOI: 10.1016/j.celrep.2021.110279] [Citation(s) in RCA: 1] [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] [Received: 06/07/2021] [Revised: 10/18/2021] [Accepted: 12/23/2021] [Indexed: 11/25/2022] Open
Abstract
Murine leukemia virus (MLV)-presenting cells form stable intercellular contacts with target cells during infection of lymphoid tissue, indicating a role of cell-cell contacts in retrovirus dissemination. Whether host cell adhesion proteins are required for retrovirus spread in vivo remains unknown. Here, we demonstrate that the lymphocyte-function-associated-antigen-1 (LFA1) and its ligand intercellular-adhesion-molecule-1 (ICAM1) are important for cell-contact-dependent transmission of MLV between leukocytes. Infection experiments in LFA1- and ICAM1-deficient mice demonstrate a defect in MLV spread within lymph nodes. Co-culture of primary leukocytes reveals a specific requirement for ICAM1 on donor cells and LFA1 on target cells for cell-contact-dependent spread through trans- and cis-infection. Importantly, adoptive transfer experiments combined with a newly established MLV-fusion assay confirm that the directed LFA1-ICAM1 interaction is important for retrovirus fusion and transmission in vivo. Taken together, our data provide insights on how retroviruses exploit host proteins and the biology of cell-cell interactions for dissemination.
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Affiliation(s)
- Rebecca Engels
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Lisa Falk
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Manuel Albanese
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Oliver T Keppler
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Xaver Sewald
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany.
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Laib Sampaio K, Lutz C, Engels R, Stöhr D, Sinzger C. Selection of Human Cytomegalovirus Mutants with Resistance against PDGFRα-Derived Entry Inhibitors. Viruses 2021; 13:v13061094. [PMID: 34201364 PMCID: PMC8229732 DOI: 10.3390/v13061094] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 12/25/2022] Open
Abstract
The human cytomegalovirus (HCMV) infects fibroblasts via an interaction of its envelope glycoprotein gO with the cellular platelet-derived growth factor receptor alpha (PDGFRα), and soluble derivatives of this receptor can inhibit viral entry. We aimed to select mutants with resistance against PDGFRα-Fc and the PDGFRα-derived peptides GT40 and IK40 to gain insight into the underlying mechanisms and determine the genetic barrier to resistance. An error-prone variant of strain AD169 was propagated in the presence of inhibitors, cell cultures were monitored weekly for signs of increased viral growth, and selected viruses were tested regarding their sensitivity to the inhibitor. Resistant virus was analyzed by DNA sequencing, candidate mutations were transferred into AD169 clone pHB5 by seamless mutagenesis, and reconstituted virus was again tested for loss of sensitivity by dose-response analyses. An S48Y mutation in gO was identified that conferred a three-fold loss of sensitivity against PDGFRα-Fc, a combination of mutations in gO, gH, gB and gN reduced sensitivity to GT40 by factor 4, and no loss of sensitivity occurred with IK40. The resistance-conferring mutations support the notion that PDGFRα-Fc and GT40 perturb the interaction of gO with its receptor, but the relatively weak effect indicates a high genetic barrier to resistance.
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Engels R, Graziani C, Higgins I, Thompson J, Kaplow R, Vettese TE, Massart A. Impact of Do-Not-Resuscitate Orders on Nursing Clinical Decision Making. South Med J 2020; 113:330-336. [DOI: 10.14423/smj.0000000000001112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Engels R, Grigoryev K, Kannis CS, Michael Y, Ströher H, Verhoeven V, Büscher M, Huxold L, Kochenda L, Kravtsov P, Trofimov V, Vasilyev A, Vznuzdaev M. Production of HD Molecules in Definite Hyperfine Substates. Phys Rev Lett 2020; 124:113003. [PMID: 32242681 DOI: 10.1103/physrevlett.124.113003] [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] [Received: 11/17/2019] [Accepted: 02/02/2020] [Indexed: 06/11/2023]
Abstract
Polarized atomic beam sources have been in operation for many years to produce either nuclear polarized atomic hydrogen or deuterium beams. In recent experiments, such a source was used to polarize both isotopes independently at the same time. By recombination of the atoms, hydrogen-deuterium molecules with all possible nuclear spin combinations can be created. Those spin isomers are useful for further applications, like precision spectroscopy, as polarized targets for laser-particle acceleration, polarized fuel for fusion reactors, or as an option for future measurements of electric dipole moments.
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Affiliation(s)
- R Engels
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C S Kannis
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Michael
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Verhoeven
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Büscher
- Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany and Institute for Laser- and Plasma-Physics, Heinrich-Heine Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - L Huxold
- Institute for Laser- and Plasma-Physics, Heinrich-Heine Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - L Kochenda
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - P Kravtsov
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - V Trofimov
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - A Vasilyev
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - M Vznuzdaev
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
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Engels R, Gullickson Ba C, Hamoda R, Joyce Kim J, Schiff J. Providing Linguistically Competent Care for Refugee Patients in Clarkston, Georgia: An Interprofessional Quality Improvement Team Initiative. Am J Med Qual 2019; 34:414. [PMID: 30974957 DOI: 10.1177/1062860619843289] [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: 11/17/2022]
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Adlarson P, Augustyniak W, Bardan W, Bashkanov M, Bergmann FS, Berłowski M, Bondar A, Büscher M, Calén H, Ciepał I, Clement H, Czerwiński E, Demmich K, Engels R, Erven A, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goswami A, Grigoryev K, Heijkenskjöld L, Hejny V, Hüsken N, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khoukaz A, Khreptak O, Kirillov DA, Kistryn S, Kleines H, Kłos B, Krzemień W, Kulessa P, Kupść A, Lalwani K, Lersch D, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Morsch HP, Moskal P, Ohm H, Parol W, Perez Del Rio E, Piskunov NM, Prasuhn D, Pszczel D, Pysz K, Ritman J, Roy A, Rudy Z, Rundel O, Sawant S, Schadmand S, Schätti-Ozerianska I, Sefzick T, Serdyuk V, Shwartz B, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Stephan E, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Trzciński A, Wolke M, Wrońska A, Wüstner P, Yamamoto A, Zabierowski J, Zieliński MJ, Złomańczuk J, Żuprański P, Żurek M. Isotensor Dibaryon in the pp→ppπ^{+}π^{-} Reaction? Phys Rev Lett 2018; 121:052001. [PMID: 30118290 DOI: 10.1103/physrevlett.121.052001] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/19/2018] [Indexed: 06/08/2023]
Abstract
Exclusive measurements of the quasifree pp→ppπ^{+}π^{-} reaction have been carried out at WASA@COSY by means of pd collisions at T_{p}=1.2 GeV. Total and differential cross sections have been extracted covering the energy region T_{p}=1.08-1.36 GeV, which is the region of N^{*}(1440) and Δ(1232)Δ(1232) resonance excitations. Calculations describing these excitations by t-channel meson exchange are at variance with the measured differential cross sections and underpredict substantially the experimental total cross section. An isotensor ΔN dibaryon resonance with I(J^{P})=2(1^{+}) produced associatedly with a pion is able to overcome these deficiencies.
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Affiliation(s)
- P Adlarson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - W Augustyniak
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - W Bardan
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - M Bashkanov
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
| | - F S Bergmann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - M Berłowski
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - A Bondar
- Budker Institute of Nuclear Physics of SB RAS, 11 Akademika Lavrentieva Prospekt, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Ulitsa, Novosibirsk 630090, Russia
| | - M Büscher
- Peter Grünberg Institut, PGI-6 Elektronische Eigenschaften, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institut für Laser- und Plasmaphysik, Heinrich Heine Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - H Calén
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - I Ciepał
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - H Clement
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - E Czerwiński
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - K Demmich
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Eyrich
- Physikalisches Institut, Friedrich-Alexander Universität Erlangen-Nürnberg, Erwin-Rommel-Straße 1, 91058 Erlangen, Germany
| | - P Fedorets
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Theoretical and Experimental Physics, named by A.I. Alikhanov of National Research Centre "Kurchatov Institute," 25 Bolshaya Cheremushkinskaya Ulitsa, Moscow 117218, Russia
| | - K Föhl
- II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - K Fransson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Goswami
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Discipline of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore, Madhya Pradesh 453 552, India
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Division, Petersburg Nuclear Physics Institute, named by B.P. Konstantinov of National Research Centre "Kurchatov Institute," 1 Mikrorajon Orlova Roshcha, Leningradskaya Oblast, Gatchina 188300, Russia
| | - L Heijkenskjöld
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hüsken
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - L Jarczyk
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Johansson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Kamys
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - G Kemmerling
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - O Khreptak
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - D A Kirillov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - S Kistryn
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Kleines
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kłos
- August Chełkowski Institute of Physics, University of Silesia, Ulica 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - W Krzemień
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - P Kulessa
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - A Kupść
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - K Lalwani
- Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, Rajasthan 302 017, India
| | - D Lersch
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Magiera
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - P Marciniewski
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Mariański
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - H-P Morsch
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - P Moskal
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Ohm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Parol
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - E Perez Del Rio
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - N M Piskunov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Pszczel
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - K Pysz
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
- Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstraße 150, 44780 Bochum, Germany
| | - A Roy
- Discipline of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore, Madhya Pradesh 453 552, India
| | - Z Rudy
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - O Rundel
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - S Sawant
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400 076, India
| | - S Schadmand
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Schätti-Ozerianska
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Serdyuk
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Shwartz
- Budker Institute of Nuclear Physics of SB RAS, 11 Akademika Lavrentieva Prospekt, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Ulitsa, Novosibirsk 630090, Russia
| | - T Skorodko
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Department of Physics, Tomsk State University, 36 Lenin Avenue, Tomsk 634050, Russia
| | - M Skurzok
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Smyrski
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - V Sopov
- Institute for Theoretical and Experimental Physics, named by A.I. Alikhanov of National Research Centre "Kurchatov Institute," 25 Bolshaya Cheremushkinskaya Ulitsa, Moscow 117218, Russia
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Stepaniak
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - E Stephan
- August Chełkowski Institute of Physics, University of Silesia, Ulica 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - G Sterzenbach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - A Szczurek
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - A Trzciński
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - M Wolke
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - A Wrońska
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Yamamoto
- High Energy Accelerator Research Organisation KEK, Tsukuba, Ibaraki 305-0801, Japan
| | - J Zabierowski
- Astrophysics Division, National Centre for Nuclear Research, Box 447, 90-950 Łódź, Poland
| | - M J Zieliński
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Złomańczuk
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - P Żuprański
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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9
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Adlarson P, Augustyniak W, Bardan W, Bashkanov M, Bass SD, Bergmann FS, Berłowski M, Bondar A, Büscher M, Calén H, Ciepał I, Clement H, Czerwiński E, Demmich K, Engels R, Erven A, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goswami A, Grigoryev K, Gullström CO, Heijkenskjöld L, Hejny V, Hüsken N, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khatri G, Khoukaz A, Khreptak O, Kirillov DA, Kistryn S, Kleines H, Kłos B, Krzemień W, Kulessa P, Kupść A, Kuzmin A, Lalwani K, Lersch D, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Morsch HP, Moskal P, Ohm H, Parol W, Perez Del Rio E, Piskunov NM, Prasuhn D, Pszczel D, Pysz K, Pyszniak A, Ritman J, Roy A, Rudy Z, Rundel O, Sawant S, Schadmand S, Schätti-Ozerianska I, Sefzick T, Serdyuk V, Shwartz B, Sitterberg K, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Stephan E, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Trzciński A, Wolke M, Wrońska A, Wüstner P, Yamamoto A, Zabierowski J, Zieliński MJ, Złomańczuk J, Żuprański P, Żurek M. Spin Dependence of η Meson Production in Proton-Proton Collisions Close to Threshold. Phys Rev Lett 2018; 120:022002. [PMID: 29376676 DOI: 10.1103/physrevlett.120.022002] [Citation(s) in RCA: 1] [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] [Received: 09/07/2017] [Revised: 11/03/2017] [Indexed: 06/07/2023]
Abstract
Taking advantage of the high acceptance and axial symmetry of the WASA-at-COSY detector, and the high polarization degree of the proton beam of COSY, the reaction p[over →]p→ppη has been measured close to threshold to explore the analyzing power A_{y}. The angular distribution of A_{y} is determined with the precision improved by more than 1 order of magnitude with respect to previous results, allowing a first accurate comparison with theoretical predictions. The determined analyzing power is consistent with zero for an excess energy of Q=15 MeV, signaling s-wave production with no evidence for higher partial waves. At Q=72 MeV the data reveal strong interference of Ps and Pp partial waves and cancellation of (Pp)^{2} and Ss^{*}Sd contributions. These results rule out the presently available theoretical predictions for the production mechanism of the η meson.
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Affiliation(s)
- P Adlarson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - W Bardan
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - M Bashkanov
- School of Physics and Astronomy, University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh EH9 3FD, United Kingdom
| | - S D Bass
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - F S Bergmann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - M Berłowski
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - A Bondar
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - M Büscher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Calén
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - I Ciepał
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - H Clement
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - E Czerwiński
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - K Demmich
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Erven
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - W Erven
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - W Eyrich
- Physikalisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany
| | - P Fedorets
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
| | - K Föhl
- II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - K Fransson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Goswami
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, Madhya Pradesh, India
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Division, Petersburg Nuclear Physics Institute, Orlova Rosha 2, Gatchina, Leningrad district 188300, Russia
| | - C-O Gullström
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - L Heijkenskjöld
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hüsken
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - L Jarczyk
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Johansson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Kamys
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - G Kemmerling
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - G Khatri
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - A Khoukaz
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - O Khreptak
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - D A Kirillov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - S Kistryn
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Kleines
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - B Kłos
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - W Krzemień
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Kulessa
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Kupść
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - A Kuzmin
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - K Lalwani
- Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg Jaipur 302017, Rajasthan, India
| | - D Lersch
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Magiera
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - P Marciniewski
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - H-P Morsch
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - P Moskal
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Ohm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Parol
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - E Perez Del Rio
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - N M Piskunov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Pszczel
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - K Pysz
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Pyszniak
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
- Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - A Roy
- Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, Madhya Pradesh, India
| | - Z Rudy
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - O Rundel
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - S Sawant
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - S Schadmand
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Schätti-Ozerianska
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Serdyuk
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Shwartz
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - K Sitterberg
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - T Skorodko
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Department of Physics, Tomsk State University, 36 Lenina Avenue, Tomsk 634050, Russia
| | - M Skurzok
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Smyrski
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - V Sopov
- Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Stepaniak
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - E Stephan
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - G Sterzenbach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - A Szczurek
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - M Wolke
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - A Wrońska
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Wüstner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - A Yamamoto
- High Energy Accelerator Research Organisation KEK, Tsukuba, Ibaraki 305-0801, Japan
| | - J Zabierowski
- Department of Astrophysics, National Centre for Nuclear Research, 90-950 Łódź, Poland
| | - M J Zieliński
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Złomańczuk
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - P Żuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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10
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Guidoboni G, Stephenson E, Andrianov S, Augustyniak W, Bagdasarian Z, Bai M, Baylac M, Bernreuther W, Bertelli S, Berz M, Böker J, Böhme C, Bsaisou J, Chekmenev S, Chiladze D, Ciullo G, Contalbrigo M, de Conto JM, Dymov S, Engels R, Esser FM, Eversmann D, Felden O, Gaisser M, Gebel R, Glückler H, Goldenbaum F, Grigoryev K, Grzonka D, Hahnraths T, Heberling D, Hejny V, Hempelmann N, Hetzel J, Hinder F, Hipple R, Hölscher D, Ivanov A, Kacharava A, Kamerdzhiev V, Kamys B, Keshelashvili I, Khoukaz A, Koop I, Krause HJ, Krewald S, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Maier R, Makino K, Mariański B, Mchedlishvili D, Meißner UG, Mey S, Morse W, Müller F, Nass A, Natour G, Nikolaev N, Nioradze M, Nowakowski K, Orlov Y, Pesce A, Prasuhn D, Pretz J, Rathmann F, Ritman J, Rosenthal M, Rudy Z, Saleev A, Sefzick T, Semertzidis Y, Senichev Y, Shmakova V, Silenko A, Simon M, Slim J, Soltner H, Stahl A, Stassen R, Statera M, Stockhorst H, Straatmann H, Ströher H, Tabidze M, Talman R, Thörngren Engblom P, Trinkel F, Trzciński A, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wilkin C, Wrońska A, Wüstner P, Zakrzewska M, Zuprański P, Zyuzin D. How to Reach a Thousand-Second in-Plane Polarization Lifetime with 0.97-GeV/c Deuterons in a Storage Ring. Phys Rev Lett 2016; 117:054801. [PMID: 27517774 DOI: 10.1103/physrevlett.117.054801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Indexed: 06/06/2023]
Abstract
We observe a deuteron beam polarization lifetime near 1000 s in the horizontal plane of a magnetic storage ring (COSY). This long spin coherence time is maintained through a combination of beam bunching, electron cooling, sextupole field corrections, and the suppression of collective effects through beam current limits. This record lifetime is required for a storage ring search for an intrinsic electric dipole moment on the deuteron at a statistical sensitivity level approaching 10^{-29} e cm.
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Affiliation(s)
- G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, St. Petersburg State University, 198504 St. Petersburg, Russia
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Baylac
- LPSC Université Grenoble-Alpes, CNRS/IN2P3, 38000 Grenoble, Cedex, France
| | - W Bernreuther
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany
| | - S Bertelli
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Böker
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C Böhme
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Bsaisou
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Chiladze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Contalbrigo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - J-M de Conto
- LPSC Université Grenoble-Alpes, CNRS/IN2P3, 38000 Grenoble, Cedex, France
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F M Esser
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - O Felden
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Glückler
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - T Hahnraths
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - R Hipple
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Hölscher
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, St. Petersburg State University, 198504 St. Petersburg, Russia
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kamys
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - H-J Krause
- Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Krewald
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Mchedlishvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Ulf-G Meißner
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Bethe Center for Theoretical Physics, Universität Bonn, 53115 Bonn, Germany
| | - S Mey
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - W Morse
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Müller
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Natour
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | - M Nioradze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - K Nowakowski
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - Y Orlov
- Cornell University, Ithaca, New York 14850, USA
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Rosenthal
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - Z Rudy
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Saleev
- Samara State Aerospace University, Samara 443086, Russia
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
- Department of Physics, KAIST, Daejeon 305-701, Republic of Korea
| | - Y Senichev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - M Simon
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Statera
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Straatmann
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- University of Ferrara and INFN, 44100 Ferrara, Italy
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - F Trinkel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C Wilkin
- Physics and Astronomy Department, UCL, London WC1E 6BT, United Kingdom
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Zakrzewska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Zyuzin
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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11
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van Spijker B, Kerkhof A, Lokkerbol J, Engels R, Smit F. [Online self-help for persons with suicidal intentions: budget impact analysis]. Tijdschr Psychiatr 2016; 58:746-750. [PMID: 27779293] [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: 06/06/2023]
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12
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Rothe M, Kanwal N, Dietmann P, Seigfried F, Hempel A, Schütz D, Reim D, Engels R, Linnemann A, Schmeisser MJ, Bockmann J, Kühl M, Boeckers TM, Kühl SJ. An Epha4/Sipa1l3/Wnt pathway regulates eye development and lens maturation. Development 2016; 144:321-333. [DOI: 10.1242/dev.147462] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 12/06/2016] [Indexed: 01/21/2023]
Abstract
The signal-induced proliferation associated family of proteins comprises four members, SIPA1 and SIPA1L1-1L3. Mutations of the human SIPA1L3 gene result in congenital cataracts. In Xenopus, loss of Sipa1l3 function led to a severe eye phenotype that was distinguished by smaller eyes and lenses including lens fiber cell maturation defects. We found a direct interaction between Sipa1l3 and Epha4, building a functional platform for proper ocular development. Epha4 deficiency phenocopied loss of Sipa1l3 and rescue experiments demonstrated that Epha4 acts up-stream of Sipa1l3 during eye development. Both, Sipa1l3 and Epha4 are required for early eye specification. The ocular phenotype, upon loss of either Epha4 or Sipa1l3, was partially mediated by rax. We demonstrated that canonical Wnt signaling is inhibited downstream of Epha4/Sipa1l3 during normal eye development. Depletion of either Sipa1l3 or Epha4 resulted in an up-regulation of axin2 expression, a direct Wnt/β-catenin target gene. In line with this, Sipa1l3 or Epha4 depletion could be rescued by blocking Wnt/β-catenin or activating non-canonical Wnt signaling. We therefore conclude that this pathomechanism prevents proper eye development and maturation of lens fiber cells resulting in congenital cataracts.
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Affiliation(s)
- Melanie Rothe
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
- International Graduate School in Molecular Medicine Ulm, 89081 Ulm University, Ulm, Germany
| | - Noreen Kanwal
- Institute for Anatomy and Cell Biology, Ulm University, 89081 Ulm, Germany
- International Graduate School in Molecular Medicine Ulm, 89081 Ulm University, Ulm, Germany
| | - Petra Dietmann
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
| | - Franziska Seigfried
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
- International Graduate School in Molecular Medicine Ulm, 89081 Ulm University, Ulm, Germany
| | - Annemarie Hempel
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
- International Graduate School in Molecular Medicine Ulm, 89081 Ulm University, Ulm, Germany
| | - Desiree Schütz
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
| | - Dominik Reim
- Institute for Anatomy and Cell Biology, Ulm University, 89081 Ulm, Germany
- International Graduate School in Molecular Medicine Ulm, 89081 Ulm University, Ulm, Germany
| | - Rebecca Engels
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
| | - Alexander Linnemann
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
| | - Michael J. Schmeisser
- Institute for Anatomy and Cell Biology, Ulm University, 89081 Ulm, Germany
- Department of Neurology, Ulm University, 89081 Ulm, Germany
| | - Juergen Bockmann
- Institute for Anatomy and Cell Biology, Ulm University, 89081 Ulm, Germany
| | - Michael Kühl
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
| | - Tobias M. Boeckers
- Institute for Anatomy and Cell Biology, Ulm University, 89081 Ulm, Germany
| | - Susanne J. Kühl
- Institute of Biochemistry and Molecular Biology, Ulm University, 89081 Ulm, Germany
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13
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Engels R, Gaißer M, Gorski R, Grigoryev K, Mikirtychyants M, Nass A, Rathmann F, Seyfarth H, Ströher H, Weiss P, Kochenda L, Kravtsov P, Trofimov V, Tschernov N, Vasilyev A, Vznuzdaev M, Schieck HPG. Production of hyperpolarized H_{2} molecules from H[over →] atoms in gas-storage cells. Phys Rev Lett 2015; 115:113007. [PMID: 26406831 DOI: 10.1103/physrevlett.115.113007] [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] [Received: 05/18/2015] [Indexed: 06/05/2023]
Abstract
The preservation of the nuclear polarization of hydrogen atoms during the recombination to molecules was observed on different surface materials in the temperature range from 45 to 100 K and for magnetic fields up to 1 T. On a gold and a fused quartz surface, the expected molecular polarization of about 50% or lower of the atomic polarization was measured, while a surface layer of perfluoropolyether (Fomblin) shows a nearly complete preservation (at least 97%) of the atomic polarization during the recombination process. Further experiments have the possibility of storing polarized deuterium molecules and to use them in nuclear-fusion installations. Another application might be the production of polarized substances for enhanced NMR techniques.
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Affiliation(s)
- R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - M Gaißer
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - R Gorski
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - M Mikirtychyants
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - H Seyfarth
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - P Weiss
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - L Kochenda
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - P Kravtsov
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - V Trofimov
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - N Tschernov
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - A Vasilyev
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - M Vznuzdaev
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
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14
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Eversmann D, Hejny V, Hinder F, Kacharava A, Pretz J, Rathmann F, Rosenthal M, Trinkel F, Andrianov S, Augustyniak W, Bagdasarian Z, Bai M, Bernreuther W, Bertelli S, Berz M, Bsaisou J, Chekmenev S, Chiladze D, Ciullo G, Contalbrigo M, de Vries J, Dymov S, Engels R, Esser FM, Felden O, Gaisser M, Gebel R, Glückler H, Goldenbaum F, Grigoryev K, Grzonka D, Guidoboni G, Hanhart C, Heberling D, Hempelmann N, Hetzel J, Hipple R, Hölscher D, Ivanov A, Kamerdzhiev V, Kamys B, Keshelashvili I, Khoukaz A, Koop I, Krause HJ, Krewald S, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Maier R, Makino K, Mariański B, Mchedlishvili D, Meißner UG, Mey S, Nass A, Natour G, Nikolaev N, Nioradze M, Nogga A, Nowakowski K, Pesce A, Prasuhn D, Ritman J, Rudy Z, Saleev A, Semertzidis Y, Senichev Y, Shmakova V, Silenko A, Slim J, Soltner H, Stahl A, Stassen R, Statera M, Stephenson E, Stockhorst H, Straatmann H, Ströher H, Tabidze M, Talman R, Thörngren Engblom P, Trzciński A, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wilkin C, Wirzba A, Wrońska A, Wüstner P, Zakrzewska M, Zuprański P, Zyuzin D. New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments. Phys Rev Lett 2015; 115:094801. [PMID: 26371657 DOI: 10.1103/physrevlett.115.094801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Indexed: 06/05/2023]
Abstract
A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, the spin tune-defined as the number of spin precessions per turn-is given by ν(s)=γG (γ is the Lorentz factor, G the gyromagnetic anomaly). At 970 MeV/c, the deuteron spins coherently precess at a frequency of ≈120 kHz in the Cooler Synchrotron COSY. The spin tune is deduced from the up-down asymmetry of deuteron-carbon scattering. In a time interval of 2.6 s, the spin tune was determined with a precision of the order 10^{-8}, and to 1×10^{-10} for a continuous 100 s accelerator cycle. This renders the presented method a new precision tool for accelerator physics; controlling the spin motion of particles to high precision is mandatory, in particular, for the measurement of electric dipole moments of charged particles in a storage ring.
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Affiliation(s)
- D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Rosenthal
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Trinkel
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - W Bernreuther
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany
| | - S Bertelli
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Bsaisou
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Chiladze
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Contalbrigo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - J de Vries
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F M Esser
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - O Felden
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Glückler
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - C Hanhart
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - R Hipple
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Hölscher
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kamys
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - H-J Krause
- Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Krewald
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Mchedlishvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - Ulf-G Meißner
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
| | - S Mey
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Natour
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
| | - M Nioradze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - A Nogga
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Nowakowski
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - Z Rudy
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Saleev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Y Senichev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Statera
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Straatmann
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- University of Ferrara and INFN, 44100 Ferrara, Italy
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - C Wilkin
- Physics and Astronomy Department, UCL, London, WC1E 6BT, United Kingdom
| | - A Wirzba
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Zakrzewska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Zyuzin
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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Engels R, Krämer J. Incidence ofFusaria and occurrence of selected Fusarium mycotoxins on Lolium spp. in Germany. Mycotoxin Res 2013; 12:31-40. [PMID: 23604632 DOI: 10.1007/bf03192078] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/1995] [Accepted: 10/27/1995] [Indexed: 10/18/2022]
Abstract
Test plantings with varieties ofLolium multiflorum andL perenne were harvested 4 to 7 times a year in 1991 and 1992. Samples were checked for the presence ofFusaria, the mycotoxins zearalenone, T-2 toxin, and diacetoxyscirpenol (DAS). Spectrum of species and the incidence ofFusaria and fusariotoxins are discussed in relation to the influencing factors site, variety ofLolium, harvesting time and year. Depending on these factors, 41 % to 100 % of the samples wereFusarium positive. Differences in infestation with Fusarium among varieties ofLolium perenne were dependent on location and did not correlate with yield. The six species ofFusarium pathogenic toLolium spp. (F. graminearum, F. culmorum, F. avenaceum, F. oxysporum, F. solani, and F. acuminatum) totaled 35.7 % of all the isolated strains. 14 species could be isolated fromLolium samples (descending frequency):F. culmorum, F. sambucinum, F. equiseti, F. acuminatum, F. semitectum, F. oxysporum, F. subglutinans, F. avenaceum, F. sporotrichioides, F. proliferatum, F. tricinctum, F. anthophilum, F. dimerum and F. graminearum. For the detection ofFusaria a promising new immunological method is presented. It is based on the genus specific production of exopolysaccharides byFusarium species.Mycotoxin contents in grass ranged from 0.01 to 4.75 ppm for zearalenone with 67 % positive samples and 0.3 % samples above 1 ppm, 0.04 to 2.78 ppm for T-2 toxin with 25 % positive samples and 2.8 % samples above 1 ppm, and 0.003 to 0.06 for DAS with 21.6 % positive samples. In silages, no T-2 toxin was detectable. IsolatedFusarium strains were checked for the ability to produce the mycotoxins zearalenone, T-2 toxin and DAS in culture. Most of the strains were positive for at least one of the toxins.
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Schellekens A, Scholte R, Engels R, Verkes RJ. [Dopamine and excessive alcohol consumption: how genes interact with their environment]. Tijdschr Psychiatr 2013; 55:853-859. [PMID: 24242144] [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: 06/02/2023]
Abstract
BACKGROUND Hereditary factors account for approximately 50% of the risk of developing alcohol dependence. Genes that affect the dopamine function in the brain have been extensively studied as candidate genes. AIM To present the results of recent Dutch studies on the interaction between genes and their environment in relation to dopamine function and excessive alcohol use. METHOD Two large scale research projects were recently carried out in order to study the relation between dopamine genes and excessive alcohol use in the Netherlands. The first study investigated excessive alcohol use among adolescents. The second studied alcohol dependence among adult males. RESULTS Genes that affect the dopamine function in the brain were not directly linked to excessive alcohol use or dependence. Dopamine genes, however, do influence sensitivity to environmental risk factors for excessive alcohol use. CONCLUSION These studies show that genetically determined dopamine function increases the risk of excessive alcohol use in the context of an adverse environment. Traumatic experiences and parenting style were both shown to be important environmental factors.
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Adlarson P, Adolph C, Augustyniak W, Baru V, Bashkanov M, Bednarski T, Bergmann FS, Berłowski M, Bhatt H, Brinkmann KT, Büscher M, Calén H, Clement H, Coderre D, Czerwiński E, Doroshkevich E, Ekström C, Engels R, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goslawski P, Grigoryev K, Grishina V, Gullström CO, Hampe J, Hanhart C, Heijkenskjöld L, Hejny V, Hinterberger F, Hodana M, Höistad B, Jacewicz M, Janusz M, Jany A, Jany BR, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khakimova O, Khoukaz A, Kistryn S, Klaja J, Kleines H, Kłos B, Kren F, Krzemień W, Kulessa P, Kullander S, Kupść A, Lalwani K, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Mikirtychiants M, Moskal P, Morsch HP, Nandi BK, Niedźwiecki S, Ohm H, Passfeld A, Pauly C, del Rio EP, Petukhov Y, Piskunov N, Pluciński P, Podkopał P, Povtoreyko A, Prasuhn D, Pricking A, Pysz K, Rausmann T, Redmer CF, Ritman J, Roy A, Ruber RJMY, Rudy Z, Sawant S, Schadmand S, Schmidt A, Schroeder W, Sefzick T, Serdyuk V, Shah N, Siemaszko M, Siudak R, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Täschner A, Tolba T, Trzciński A, Varma R, Vlasov P, Wagner GJ, Węglorz W, Winnemöller A, Wirzba A, Wolke M, Wrońska A, Wüstner P, Wurm P, Yuan X, Yurev L, Zabierowski J, Zheng C, Zieliński MJ, Zipper W, Złomańczuk J, Zuprański P. Abashian-Booth-Crowe effect in basic double-pionic fusion: a new resonance? Phys Rev Lett 2011; 106:242302. [PMID: 21770567 DOI: 10.1103/physrevlett.106.242302] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Indexed: 05/31/2023]
Abstract
We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ(0)π(0) over the full energy region of the ABC effect, a pronounced low-mass enhancement in the ππ-invariant mass spectrum. The measurements, which cover also the transition region to the conventional t-channel ΔΔ process, were performed with the upgraded WASA detector setup at COSY. The data reveal the Abashian-Booth-Crowe effect to be uniquely correlated with a Lorentzian energy dependence in the integral cross section. The observables are consistent with a narrow resonance with m=2.37 GeV, Γ≈70 MeV and I(J(P))=0(3(+)) in both pn and ΔΔ systems. Necessary further tests of the resonance interpretation are discussed.
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Affiliation(s)
- P Adlarson
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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Overbeek G, Vermulst A, de Graaf R, Ten Have M, Engels R, Scholte R. [Positive life events and mood disorders: longitudinal evidence for a chaotic life-course hypothesis]. Tijdschr Psychiatr 2011; 53:321-332. [PMID: 21674445] [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: 05/30/2023]
Abstract
BACKGROUND In psychiatric research it is often assumed that detrimental effects of negative life events on mental health can be buffered by a number of positive life events. However, there is no convincing empirical evidence that this assumption is correct; it can even be argued that positive life events act as additional stressors rather than as buffers, leading to a continuation of a chaotic life course and an increase in the risk of affective disorders. AIM To find out whether positive life events were associated with a higher risk of the occurrence of mood disorders and whether such an association could be explained by a number of negative life events that individuals had experienced. METHOD We used data from 4,796 adults, aged 18-64, collected at two measurement moments (i.e. 1997 and 1999) of NEMESIS, a Dutch prospective-epidemiological study. As a basis for our measurements we used dsm-iii-r diagnoses of major depressive disorders and dysthymia and the Life Events and Difficulties Schedules LEDS. RESULTS A multivariate (MPlus) path analysis demonstrated that positive life events were not, in themselves, significantly predictive of affective disorders. Positive life events were only related to the risk of mood disorders when they co-occurred with a high number of negative life events. CONCLUSIONS In accordance with a chaotic life-course hypothesis, positive events were not found to buffer the detrimental impact of negative life events, but when they are part of an erratic course of life they can pose an extra threat to an individual’s mental health.
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Affiliation(s)
- G Overbeek
- Universiteit Utrecht, Facultiet Sociale Wetenschappen Ontwikkelingspsychologie te Utrecht.
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Seyfarth H, Engels R, Rathmann F, Ströher H, Baryshevsky V, Rouba A, Düweke C, Emmerich R, Imig A, Grigoryev K, Mikirtychiants M, Vasilyev A. Production of a beam of tensor-polarized deuterons using a carbon target. Phys Rev Lett 2010; 104:222501. [PMID: 20867161 DOI: 10.1103/physrevlett.104.222501] [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] [Received: 11/26/2009] [Indexed: 05/29/2023]
Abstract
An initially unpolarized beam of deuterons is found to acquire tensor polarization after traversing a foil of spin-zero target nuclei. The effect, called nuclear spin dichroism, has been predicted theoretically, albeit resulting in small values of p(zz) of the order of 0.01 for energies around 10 MeV. The experiment was carried out at the Köln tandem accelerator using carbon targets bombarded by deuterons. The observed polarization is as large as p(zz)=-0.28±0.03 for a beam of 14.8 MeV and a 129 mg/cm2 target. The results allow one to produce tensor-polarized deuterons with p(zz) around -0.30 (or +0.25) from an initially unpolarized beam using a carbon target of appropriate thickness.
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Affiliation(s)
- H Seyfarth
- Institut für Kernphysik, Jülich Center for Hadron Physics, Forschungszentrum Jülich, Leo-Brandt-Straße 1, D-52425 Jülich, Germany.
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Harakeh Z, Engels R, Den Exter Blokland E, Scholte R, Vermulst A. Parental communication appears not to be an effective strategy to reduce smoking in a sample of Dutch adolescents. Psychol Health 2010; 24:823-41. [PMID: 20205029 DOI: 10.1080/08870440802074649] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
This longitudinal study examined the reciprocal effects of the frequency of parent-adolescent communication on tobacco-related issues (smoking-specific communication), and adolescents' smoking. Participants were 428 Dutch older and younger siblings between 13 and 16 years old. Smoking-specific communication did not affect youth smoking in general; however, among younger, but not older, siblings, smoking-specific communication was associated with a higher likelihood of smoking over time. In addition, when adolescents already smoked parents started to talk more frequently about smoking-related issues with their older and younger adolescents later on. Neither the quality of smoking-specific communication, the quality of parent-adolescent relationship, nor parental smoking moderated these reciprocal effects. In conclusion, prevention campaigns encouraging parents to undertake smoking-specific communication might not be desirable.
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Affiliation(s)
- Z Harakeh
- Interdisciplinary Social Science, Utrecht University, Utrecht, Netherlands.
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Conrad H, Bruckel T, Budwig A, Bussmann K, Engels R, Fracassi V, Heinen J, Heybutzki H, Ioffe A, Kussel E, Kulessa T, Pap M, Schmitz B, Suxdorf F, Zeiske T. A new thermal triple-axis spectrometer at the research reactor FRJ-2. GNER 2008. [DOI: 10.1080/10238160802284831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kleijn JH, Engels R, Bourdrez P, Mol BWJ, Bongers MY. Five-year follow up of a randomised controlled trial comparing NovaSure and ThermaChoice endometrial ablation. BJOG 2007; 115:193-8. [PMID: 17617188 DOI: 10.1111/j.1471-0528.2007.01427.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [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: 11/29/2022]
Abstract
OBJECTIVE We have previously reported that NovaSure was more effective than balloon ablation at 12 months follow up in the treatment of menorrhagia. In this paper, we report the 5-year outcome of this study. The objective was to evaluate amenorrhoea rates, hysterectomy rate, and quality of life associated with the bipolar impedance-controlled endometrial ablation technique (NovaSure) in comparison with balloon ablation technique (ThermaChoice) at 5 years after administration. DESIGN Double-blind randomised controlled trial, 2:1 randomisation NovaSure versus ThermaChoice. SETTING A teaching hospital with 500 beds in The Netherlands. POPULATION A total of 126 premenopausal women suffering from menorrhagia with a pictorial blood loss assessment count > or = 150 without intracavitary abnormalities. METHODS Women were randomly allocated to bipolar radio-frequency ablation and balloon ablation in a 2:1 ratio. MAIN OUTCOME MEASURES The main outcome measures were amenorrhoea rate, hysterectomies, and health-related quality of life (HRQol) as reported at 5 year follow up. RESULTS At 5 years of follow up, the total response rate was 96% in the bipolar group and 90% in the balloon group. Amenorrhoea was reported in the bipolar group by 48% of women and in the balloon arm by 32% (relative risk 1.6 [.93-2.6]). There were eight women in the bipolar group (9.8%) and five in the balloon group (12.9%) who had undergone a hysterectomy. Furthermore, there was a significant equal improvement of HRQoL over time in both groups. CONCLUSIONS At 5 years follow up, bipolar thermal ablation was superior over balloon ablation in the treatment of menorrhagia.
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Affiliation(s)
- J H Kleijn
- Department of Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, The Netherlands
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de Vries H, Candel M, Engels R, Mercken L. Challenges to the peer influence paradigm: results for 12-13 year olds from six European countries from the European Smoking Prevention Framework Approach study. Tob Control 2006; 15:83-9. [PMID: 16565454 PMCID: PMC2563573 DOI: 10.1136/tc.2003.007237] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [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: 11/03/2022]
Abstract
OBJECTIVE To examine whether smoking onset in young adolescents is predicted by peer or parental smoking. DESIGN Longitudinal design with one pretest and one follow-up at 12 months. SETTING Schools in Finland, Denmark, the Netherlands, the United Kingdom, Spain and Portugal. PARTICIPANTS 7102 randomly selected adolescents from six countries. Mean age was 12.78 years. MAIN OUTCOME MEASURES Smoking behaviour of adolescents, peers and parents. RESULTS No support was found for peer smoking as an important predictor of smoking onset in most countries. Support was found for the selection paradigm, implying that adolescents choose friends with similar smoking behaviour. Support for the impact of parents on adolescent behaviour and the choice of friends was also found. CONCLUSIONS Smoking uptake in this age cohort may be more strongly influenced by personal and parental influences than initially believed. Hence, social inoculation programmes teaching youngsters to resist the pressures to smoke may be less appropriate if youngsters have a positive attitude towards smoking, associate smoking with various advantages and look for peers with similar values. For this group attitudes towards smoking may thus guide future friend selection.
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Affiliation(s)
- H de Vries
- Department of Health Education and Health Promotion, University of Maastricht, The Netherlands.
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Kockelmann W, Chapon LC, Engels R, Schelten J, Neelmeijer C, Walcha HM, Artioli G, Shalev S, Perelli-Cippo E, Tardocchi M, Gorini G, Radaelli PG. Neutrons in cultural heritage research. Journal of Neutron Research 2006. [DOI: 10.1080/10238160600673284] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Menezes RA, Amuel C, Engels R, Gengenbacher U, Labahn J, Hollenberg CP. Sites for interaction between Gal80p and Gal1p in Kluyveromyces lactis: structural model of galactokinase based on homology to the GHMP protein family. J Mol Biol 2003; 333:479-92. [PMID: 14556739 DOI: 10.1016/j.jmb.2003.08.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [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: 10/27/2022]
Abstract
The induction of transcription of the galactose genes in yeast involves the galactose-dependent binding of ScGal3p (in Saccharomyces cerevisiae) or KlGal1p (in Kluyveromyces lactis) to Gal80p. This binding abrogates Gal80's inhibitory effect on the activation domain of Gal4p, which can then activate transcription. Here, we describe the isolation and characterization of new interaction mutants of K.lactis GAL1 and GAL80 using a two-hybrid screen. We present the first structural model for Gal1p to be based on the published crystal structures of other proteins belonging to the GHMP (galactokinase, homoserine kinase, mevalonate kinase and phosphomevalonate kinase) kinase family and our own X-ray diffraction data of Gal1p crystals at 3A resolution. The locations of the various mutations in the modelled Gal1p structure identify domains involved in the interaction with Gal80p and provide a structural explanation for the phenotype of constitutive GAL1 mutations.
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Affiliation(s)
- R A Menezes
- Institut für Mikrobiologie and Biologisch-Medizinisches Forschungszentrum, Heinrich-Heine-Universität, Universitätsstr. 1, D-40225, Düsseldorf, Germany
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Ajubi N, Roose AC, Engels R, Berend K, Surachno S, Duits AJ. [Kidney transplant program facilitated by airlift between the Netherlands Antilles and the Netherlands; 1998-2001]. Ned Tijdschr Geneeskd 2003; 147:2174-8. [PMID: 14626836] [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: 04/27/2023]
Abstract
OBJECTIVE To describe the results of a structured kidney-transplantation programme available to dialysis patients in Curaçao (Dutch Caribbean), involving transplantation in the Netherlands and follow-up in Curaçao. DESIGN Descriptive. METHOD In 1998, a joint venture was begun with the Academic Medical Center (AMC) in Amsterdam, the Eurotransplant Foundation, the Dutch Transplantation Working Party and the Diagnostic Division of the Sanquin Foundation in Amsterdam, the Netherlands. Its aim was to achieve a structural kidney transplantation programme for patients in the Dutch Caribbean in general and patients in Curaçao in particular. An airlift programme between Curaçao and the AMC was instituted. RESULTS Between 1998-2001 19 patients underwent a kidney transplant, three of which failed. In most of the transplants the cold ischaemia time was less than 48 hours; the average cold ischaemia time was 32 hours. All patients returned to the Antilles within 3 months where their treatment was continued. Post-transplantation follow-up was on average 13.9 months (limits 3-36); three patients died.
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Affiliation(s)
- N Ajubi
- St. Elisabeth Hospitaal, afd. Hemodialyse, Breedestraat 193(O), Curaçao, Nederlandse Antillen
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Rathmann F, Dymov S, Engels R, Jansen P, Kacharava A, Klehr F, Kleines H, Komarov V, Koptev V, Kravtsov P, Kulikov A, Kurbatov A, Lorentz B, Macharashvili G, Mikirtytchiants M, Nekipelov M, Nelyubin V, Prasuhn D, Petrus A, Sarkadi J, Seyfarth H, Schieck HPG, Steffens E, Ströher H, Uzikov Y, Vassiliev A, Yaschenko S, Zalikhanov B, Zwoll K. The polarized internal gas target for the deuteron break-up experiment of ANKE at COSY-Jülich. ACTA ACUST UNITED AC 2002. [DOI: 10.1007/s10582-002-0163-4] [Citation(s) in RCA: 8] [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: 11/28/2022]
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Noll T, Mühlensiepen H, Engels R, Hamacher K, Papaspyrou M, Langen KJ, Biselli M. A cell-culture reactor for the on-line evaluation of radiopharmaceuticals: evaluation of the lumped constant of FDG in human glioma cells. J Nucl Med 2000; 41:556-64. [PMID: 10716332] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
UNLABELLED A fluidized-bed cell-culture reactor with on-line radioactivity detection was developed for the in vitro evaluation of radiopharmaceuticals. The technique was applied to measure the dependency of the lumped constant (LC) of FDG on the glucose concentration in the culture medium in a human glioma cell line. METHODS Human glioblastoma cells (86HG39) immobilized in open porous microcarriers were cultivated in a continuously operating fluidized-bed bioreactor. At different glucose concentrations in the culture medium, step inputs (0.1 MBq/mL) of FDG were performed and the cellular uptake of FDG was measured on-line and compared with analyzed samples. From these results, the LC of FDG and its dependency on the glucose concentration were calculated. RESULTS This fluidized-bed technique enabled precise and reproducible adjustment of all relevant experimental parameters, including radiotracer time-concentration course, medium composition, pH, dissolved oxygen and temperature under steady-state conditions, and an on-line determination of the intracellular radiotracer uptake. The immobilized glioma cells formed stable, 3-dimensional, tumor-like spheroids and were continuously proliferating, as proven by an S-phase portion of 25%-40%. For further examination of the cells, an enzymatic method for detachment from the carriers without cellular destruction was introduced. In the FDG experiments, a significant dependency of the LC on the glucose level was found. For normoglycemic glucose concentrations, the LC was determined to be in the range of 0.7+/-0.1, whereas in hypoglycemia LC increased progressively up to a value of 1.22+/-0.01 at a glucose concentration of 3 mmol/L. CONCLUSION The bioreactor represents an improved in vitro model for the on-line evaluation of radiotracers and combines a wide range of experimental setups and 3-dimensional, tissue-like cell cultivation with a technique for on-line radioactivity detection.
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Affiliation(s)
- T Noll
- Institute of Biotechnology, Department of Electronics, Jülich Research Center, Germany
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Vollenbroich V, Meyer J, Engels R, Cardinali G, Menezes RA, Hollenberg CP. Galactose induction in yeast involves association of Gal80p with Gal1p or Gal3p. Mol Gen Genet 1999; 261:495-507. [PMID: 10323230 DOI: 10.1007/s004380050993] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Gal1p carries out two functions in the galactose pathway of yeast. It activates Gal4p by interacting with Gal80p--a function that can also served by Gal3p--and it catalyzes the formation of galactose-1-phosphate. Recently, we and others have presented biochemical evidence for complex formation between Gal1p and Gal80p. Here, we extend these data and present genetic evidence for an interaction between Gal1p and Gal80p in vivo, using a two-hybrid assay. Interaction between Gal1p and Gal80p depends on the presence of galactose, but not on the catalytic activity of Gal1p. A new class of Kluyveromyces lactis mutants was isolated, designated Klgal1-m, which have lost the derepressing activity but retain galactokinase activity, indicating that the two Gal1p activities are functionally independent. The KlGal1-m proteins are defective in their ability to interact with Gal80p in a two-hybrid assay. The locations of gall-m mutations identify putative interaction sites in Gal1p and Gal80p. A dominant mutation, KlGAL1-d, leads to a high level of constitutive expression of genes of the galactose pathway. The behavior of chimeric proteins consisting of Gal3p and KlGal1p sequences indicates that both the N-terminal and C-terminal halves of KlGal1p are involved in specific interaction with KlGal80p.
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Affiliation(s)
- V Vollenbroich
- Institut für Mikrobiologie, Heinrich-Heine-Universität, Düsseldorf, Germany
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Müller KD, Reinartz R, Engels R, Reinhart P, Schelten J, Schäfer W, Jansen E, Will G. Development of position-sensitive neutron detectors and associated electronics. J of Neutron Res 1996. [DOI: 10.1080/10238169608200077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Engels R. The blood and guts of analysis at five years to the millennium. Am J Psychoanal 1996; 56:353-4. [PMID: 8886224 DOI: 10.1007/bf02742422] [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: 02/02/2023]
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Engels R. Psychobiology and the mind's eye. Am J Psychoanal 1995; 55:180-1. [PMID: 7653715] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Engels R, Beier W, Erzigkeit H. [Hypertension and disorders of cognitive function]. Fortschr Med 1993; 111:522-525. [PMID: 8307535] [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: 05/22/2023]
Abstract
In the treatment of hypertension, the aspect of cognitive function is now becoming ever more important. In recent years, the influence of hypertension itself--as well as that of anti-hypertensive treatment--on cognitive functioning has repeatedly been investigated. The results obtained differ too widely to permit any final statement to be made on the relationships involved. The reasons for these differences seem to be due in particular to differences in the methods of investigation and random sampling involved in the studies. More recent studies, however, seem to support a relationship between hypertension and decreased cognitive performance. Improved investigations are expected to produce more detailed results in the future.
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Affiliation(s)
- R Engels
- Psychiatrische Klinik mit Poliklinik, Universität Erlangen-Nürnberg
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Gálvez S, Engels R, Vega J, Merino C, Jerez R, Clavero R. [APS-2: comparative study on populations of critical patients in Chile, United States and New Zealand]. Rev Med Chil 1993; 121:530-6. [PMID: 8272634] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Between 1988 and 1991, the Acute Physiologic Score (APS-2) was applied to 1000 critically ill patients admitted to an intensive care unit of a general hospital in Chile. Its predictive capacity was assessed and compared with two series from United States and New Zealand. The mean admission APS-2 in Chilean patients was 12.8 and there was a progressive increase in mortality with elevating scores; no patient with an APS-2 over 30 survived. Admission APS-2 scores in USA and New Zealand were 10.7 and 14.2. Overall mortality in Chilean patients was 28%, compared with 12% in USA and 15% in New Zealand. Within different score ranges, mortality was higher in Chilean patients than those from USA or New Zealand. It is concluded that the assessment of admission APS-2 score underlying diagnosis, physiologic age and previous health status of a patient may help to predict the success of intensive care.
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Affiliation(s)
- S Gálvez
- Unidad Cuidados Intensivos, Hospital Dr Gustavo Fricke, Viña del Mar, Chile
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Czekelius P, Engels R, Schulz KD, Meurer P. [Fetal emergency--compromise of parental guardianship already in unborn children?]. Geburtshilfe Frauenheilkd 1990; 50:161-4. [PMID: 2318410 DOI: 10.1055/s-2007-1026457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- P Czekelius
- Medizinisches Zentrum für Frauenheilkunde und Geburtshilfe
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