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Grzonka D, Alfs D, Asaturyan A, Carmignotto M, Diermaier M, Eyrich W, Głowacz B, Hauenstein F, Horn T, Kilian K, Lersch D, Malbrunot-Ettenauer S, Mkrtchyan A, Mkrtchyan H, Moskal P, Nadel-Turonski P, Oelert W, Ritman J, Sefzick T, Tadevosyan V, Widmann E, Wolke M, Zhamkochyan S, Zieliński M, Zink A, Zmeskal J. Polarization analysis of p̄ produced in pA collisions. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201919905013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A quite simple procedure for the generation of a polarized antiproton beam could be worked out if antiprotons are produced with some polarization. In order to investigate this possibility measurements of the polarization of produced antiprotons have been started at a CERN/PS test beam. The polarization will be determined from the asymmetry of the elastic antiproton scattering at a liquid hydrogen target in the CNI region for which the analyzing power is well known. The data are under analysis and an additional measurement is done in 2018. Details on the experiment and the ongoing data analysis will be given.
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Alfs D, Asaturyan A, Carmignotto M, Diermaier M, Eyrich W, Głowacz B, Grzonka D, Hauenstein F, Horn T, Kilian K, Lersch D, Malbrunot-Ettenauer S, Mkrtchyan A, Mkrtchyan H, Moskal P, Nadel-Turonski P, Oelert W, Ritman J, Sefzick T, Tadevosyan V, Widmann E, Wolke M, Zhamkochyan S, Zieliński M, Zink A, Zmeskal J. Drift chamber calibration and particle identification in the P-349 experiment. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201919905017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The goal of the P-349 experiment is to test whether 3.5 GeV/c antiprotons produced in high-energy proton-proton collisions are polarized in view of the preparation of a polarized antiproton beam. In this article, we present the details of the ongoing analysis focused on the drift chambers calibration and particle identification with DIRC.
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Kowalski P, Wiślicki W, Shopa RY, Raczyński L, Klimaszewski K, Curcenau C, Czerwiński E, Dulski K, Gajos A, Gorgol M, Gupta-Sharma N, Hiesmayr B, Jasińska B, Kapłon Ł, Kisielewska-Kamińska D, Korcyl G, Kozik T, Krzemień W, Kubicz E, Mohammed M, Niedźwiecki S, Pałka M, Pawlik-Niedźwiecka M, Raj J, Rakoczy K, Rudy Z, Sharma S, Shivani S, Silarski M, Skurzok M, Zgardzińska B, Zieliński M, Moskal P. Estimating the NEMA characteristics of the J-PET tomograph using the GATE package. ACTA ACUST UNITED AC 2018; 63:165008. [DOI: 10.1088/1361-6560/aad29b] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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4
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Moszkowska G, Zieliński M, Zielińska H, Dukat-Mazurek A, Dębska-Zielkowska J, Dębska-Ślizień A, Rutkowski B, Trzonkowski P. Evaluation of Pretransplant Donor-Specific Alloantibodies With Different Crossmatch Techniques. Transplant Proc 2018; 50:1625-1630. [DOI: 10.1016/j.transproceed.2018.02.165] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 02/06/2018] [Indexed: 10/17/2022]
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5
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Puślecki M, Ligowski M, Stefaniak S, Dąbrowski M, Zieliński M, Pawlak A, Kłosiewicz T, Sip M, Karczewski M, Małkiewicz T, Gąsiorowski Ł, Telec W, Ładzińska M, Baumgart K, Ładziński P, Perek B, Misterski M, Mrówczyński W, Sobczyński P, Kiel-Puślecka I, Buczkowski P, Kiel M, Czekajlo M, Jemielity M. "Extracorporeal Membrane Oxygenation for Greater Poland" Program: How to Save Lives and Develop Organ Donation? Transplant Proc 2018; 50:1957-1961. [PMID: 30177087 DOI: 10.1016/j.transproceed.2018.02.159] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 02/06/2018] [Indexed: 01/09/2023]
Abstract
The "ECMO for Greater Poland" program takes full advantage of the extracorporeal membrane oxygenation (ECMO) perfusion therapy opportunities to promote the health of the 3.5 million inhabitants in the region. The main implementation areas are treatment of patients with hypothermia; severe reversible respiratory failure (RRF); critical states resulting in heart failure, that is, cardiac arrest, cardiogenic shock, or acute intoxication; and promotion of the donor after circulatory death (DCD) strategy in selected organ donor cases, after unsuccessful life-saving treatment, to achieve organ recovery. This organizational model is complex and expensive, so we used advanced high-fidelity medical simulation tests to prepare for real-life experience. Over the course of 4 months we performed scenarios including "ECMO for DCD," "ECMO for extended cardiopulmonary resuscitation," "ECMO for RRF," and "ECMO in hypothermia." Soon after these simulations, Maastricht category II DCD procedures were performed involving real patients and resulting in 2 successful double kidney transplantations for the first time in Poland. One month later we treated 2 hypothermia patients (7 adult patients with heart failure and 5 patients with reversible respiratory failure) with ECMO for the first time in the region. Fortunately, we have discovered an important new role of medical simulation. It can be used not only for skills testing but also as a tool to create non-existing procedures and unavailable algorithms. The result of these program activities will promote the care and treatment of patients in critical condition with ECMO therapy as well as increase the potential organ pool from DCDs in the Greater Poland region of Poland.
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Affiliation(s)
- M Puślecki
- Department of Medical Rescue, Poznan University of Medical Sciences, Poznan, Poland; Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland.
| | - M Ligowski
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - S Stefaniak
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - M Dąbrowski
- Department of Medical Rescue, Poznan University of Medical Sciences, Poznan, Poland; Polish Society of Medical Simulation, Poland
| | - M Zieliński
- Department of Medical Rescue, Poznan University of Medical Sciences, Poznan, Poland; Voivodeship Medical Station, Poznan, Poland
| | - A Pawlak
- Polish Society of Medical Simulation, Poland
| | - T Kłosiewicz
- Department of Medical Rescue, Poznan University of Medical Sciences, Poznan, Poland; Polish Society of Medical Simulation, Poland
| | - M Sip
- Department of Medical Rescue, Poznan University of Medical Sciences, Poznan, Poland; Polish Society of Medical Simulation, Poland
| | - M Karczewski
- Department of Transplantology, General, Vascular and Plastic Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - T Małkiewicz
- Department of Anesthesiology and Intensive Care, Poznan University of Medical Sciences, Clinical Hospital H, Święcickiego, Poznan, Poland
| | - Ł Gąsiorowski
- Department of Medical Rescue, Poznan University of Medical Sciences, Poznan, Poland; Polish Society of Medical Simulation, Poland; Poznan University of Medical Sciences, Center for Medical Simulation Poznan, Poznan, Poland
| | - W Telec
- Department of Medical Rescue, Poznan University of Medical Sciences, Poznan, Poland
| | - M Ładzińska
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - K Baumgart
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - P Ładziński
- Department of Pediatric Cardiac Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - B Perek
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - M Misterski
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - W Mrówczyński
- Department of Pediatric Cardiac Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - P Sobczyński
- Department of Anesthesiology and Intensive Care, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - I Kiel-Puślecka
- Department of Palliative Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - P Buczkowski
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
| | - M Kiel
- IT WORKS, Wrocław, Poland
| | - M Czekajlo
- Department of Surgery, Hunter Holmes McGuire VA Medical Center, Richmond, VA; Lublin Medical University, Lublin, Poland
| | - M Jemielity
- Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Clinical Hospital SKPP, Poznan, Poland
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6
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Raczyński L, Wiślicki W, Krzemień W, Kowalski P, Alfs D, Bednarski T, Białas P, Curceanu C, Czerwiński E, Dulski K, Gajos A, Głowacz B, Gorgol M, Hiesmayr B, Jasińska B, Kamińska D, Korcyl G, Kozik T, Krawczyk N, Kubicz E, Mohammed M, Pawlik-Niedźwiecka M, Niedźwiecki S, Pałka M, Rudy Z, Rundel O, Sharma NG, Silarski M, Smyrski J, Strzelecki A, Wieczorek A, Zgardzińska B, Zieliński M, Moskal P. Calculation of the time resolution of the J-PET tomograph using kernel density estimation. Phys Med Biol 2017; 62:5076-5097. [DOI: 10.1088/1361-6560/aa7005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Schätti-Ozerianska I, Moskal P, Zieliński M. Determination of the analysing power for the $\bar{p}p$ → ppηreaction using the WASA-at-COSY detector system. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201613003010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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8
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Głowacz B, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Gorgol M, Jasińska B, Kamińska D, Korcyl G, Kowalski P, Kozik T, Krzemień W, Kubicz E, Mohammed M, Pawlik-Niedźwiecka M, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Rundel O, Sharma N, Silarski M, Strzelecki A, Wieczorek A, Wiślicki W, Zieliński M, Zgardzińska B, Moskal P. Hybrid TOF-PET/MRI local transceiver coil. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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9
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Kubicz E, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Głowacz B, Gorgol M, Jasińska B, Kamińska D, Korcyl G, Kowalski P, Kozik T, Krzemień W, Mohammed M, Pawlik-Niedźwiecka M, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Rundel O, Sharma N, Silarski M, Strzelecki A, Wieczorek A, Wiślicki W, Zieliński M, Zgardzińska B, Moskal P. Novel J-PET scanner combined with positron annihilation lifetime spectroscopy technique as a tool for morphometric imaging. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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10
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Zielinski M, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Głowacz B, Gorgol M, Jasińska B, Kamińska D, Korcyl G, Kowalski P, Kozik T, Krzemień W, Kubicz E, Mohammed M, Pawlik-Niedźwiecka M, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Rundel O, Sharma N, Silarski M, Strzelecki A, Wieczorek A, Wiślicki W, Zieliński M, Zgardzińska B, Moskal P. Mobile PET insert for simultaneous PET/MRI imaging. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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11
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Wieczorek A, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Głowacz B, Gorgol M, Jasińska B, Kamińska D, Korcyl G, Kowalski P, Kozik T, Krzemień W, Kubicz E, Mohammed M, Pawlik-Niedźwiecka M, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Rundel O, Sharma N, Silarski M, Strzelecki A, Wiślicki W, Zieliński M, Zgardzińska B, Moskal P. Novel plastic scinitllators for the fully digital and MRI compatible J-PET scanner. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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12
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Kozłowski W, Piwoński I, Szmaja W, Zieliński M. Quantitative study of the effect of current density on the morphological and magnetic domain structures of electrodeposited nanocrystalline cobalt films. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.03.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Moskal P, Rundel O, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Giergiel K, Gorgol M, Jasińska B, Kamińska D, Kapłon Ł, Korcyl G, Kowalski P, Kozik T, Krzemień W, Kubicz E, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Sharma NG, Słomski A, Silarski M, Strzelecki A, Wieczorek A, Wiślicki W, Witkowski P, Zieliński M, Zoń N. Time resolution of the plastic scintillator strips with matrix photomultiplier readout for J-PET tomograph. Phys Med Biol 2016; 61:2025-47. [PMID: 26895187 DOI: 10.1088/0031-9155/61/5/2025] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Recent tests of a single module of the Jagiellonian Positron Emission Tomography system (J-PET) consisting of 30 cm long plastic scintillator strips have proven its applicability for the detection of annihilation quanta (0.511 MeV) with a coincidence resolving time (CRT) of 0.266 ns. The achieved resolution is almost by a factor of two better with respect to the current TOF-PET detectors and it can still be improved since, as it is shown in this article, the intrinsic limit of time resolution for the determination of time of the interaction of 0.511 MeV gamma quanta in plastic scintillators is much lower. As the major point of the article, a method allowing to record timestamps of several photons, at two ends of the scintillator strip, by means of matrix of silicon photomultipliers (SiPM) is introduced. As a result of simulations, conducted with the number of SiPM varying from 4 to 42, it is shown that the improvement of timing resolution saturates with the growing number of photomultipliers, and that the [Formula: see text] configuration at two ends allowing to read twenty timestamps, constitutes an optimal solution. The conducted simulations accounted for the emission time distribution, photon transport and absorption inside the scintillator, as well as quantum efficiency and transit time spread of photosensors, and were checked based on the experimental results. Application of the [Formula: see text] matrix of SiPM allows for achieving the coincidence resolving time in positron emission tomography of [Formula: see text]0.170 ns for 15 cm axial field-of-view (AFOV) and [Formula: see text]0.365 ns for 100 cm AFOV. The results open perspectives for construction of a cost-effective TOF-PET scanner with significantly better TOF resolution and larger AFOV with respect to the current TOF-PET modalities.
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Affiliation(s)
- P Moskal
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 30-348 Cracow, Poland
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14
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Głowacz B, Zieliński M, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Gorgol M, Jasińska B, Kamińska D, Kapłon Ł, Korcyl G, Kowalski P, Kozik T, Krzemień W, Kubicz E, Mohammed M, Pawlik-Niedźwiecka M, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Rundel O, Sharma N, Silarski M, Słomski A, Strzelecki A, Wieczorek A, Wiślicki W, Zgardzińska B, Moskal P. Hybrid TOF-PET/MRI local transceiver coil. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)30097-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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15
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Zieliński M, Głowacz B, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Gorgol M, Jasińska B, Kamińska D, Kapłon Ł, Korcyl G, Kowalski P, Kozik T, Krzemień W, Kubicz E, Mohammed M, Pawlik-Niedźwiecka M, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Rundel O, Sharma N, Silarski M, Słomski A, Strzelecki A, Wieczorek A, Wiślicki W, Zgardzińska B, Moskal P. The mobile PET insert for simultaneous PET/MRI imaging. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)30242-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Krzemień W, Alfs D, Bednarski T, Białas P, Czerwiński E, Gajos A, Głowacz B, Gorgol M, Jasińska B, Kamińska D, Kapłon Ł, Korcyl G, Kowalski P, Kozik T, Kubicz E, Mohammed M, Niedźwiecki S, Pałka M, Raczyński L, Rudy Z, Rundel O, Sharma N, Silarski M, Słomski A, Strzelecki A, Wieczorek A, Wiślicki W, Zgardzińska B, Zieliński M, Moskal P. Front-end electronics and hit position reconstruction methods for the J-PET scanner. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)30129-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Alfs D, Asaturyan A, Carmignotto M, Diermaier M, Eyrich W, Głowacz B, Grzonka D, Hauenstein F, Horn T, Kilian K, Malbrunot-Ettenauer S, Mkrtchyan A, Mkrtchyan H, Moskal P, Nadel-Turonski P, Oelert W, Ritman J, Sefzick T, Tadevosyan V, Widmann E, Wolke M, Zhamkochyan S, Zieliński M, Zink A, Zmeskal J. Status of the analysis for the search of polarization in the antiproton production process. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201613007002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Moskal P, Alfs D, Bednarski T, Białas P, Curceanu C, Czerwiński E, Dulski K, Gajos A, Głowacz B, Gupta-Sharma N, Gorgol M, Hiesmayr BC, Jasińska B, Kamińska D, Khreptak O, Korcyl G, Kowalski P, Krzemień W, Krawczyk N, Kubicz E, Mohammed M, Niedźwiecki S, Pawlik-Niedńwiecka M, Raczyński L, Rudy Z, Silarski M, Smyrski J, Wieczorek A, Wiślicki W, Zgardzińska B, Zieliński M. Studies of discrete symmetries in a purely leptonic system using the Jagiellonian Positron Emission Tomograph. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201613007015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Pawlik-Niedźwiecka M, Khreptak O, Gajos A, Wieczorek A, Alfs D, Bednarski T, Białas P, Curceanu C, Czerwiński E, Dulski K, Głowacz B, Gupta-Sharma N, Gorgol M, Hiesmayr BC, Jasińska B, Kamińska D, Korcyl G, Kowalski P, Krzmień W, Krawczyk N, Kubicz E, Mohammed M, Niedźwiecki S, Raczyński L, Rudy Z, Silarski M, Wiślicki W, Zgardzińska B, Zieliński M, Moskal P. J-PET detector system for studies of the electron-positron annihilations. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201613007020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Kamińska D, Gajos A, Czerwiński E, Alfs D, Bednarski T, Białas P, Curceanu C, Dulski K, Głowacz B, Gupta-Sharma N, Gorgol M, Hiesmayr BC, Jasińska B, Korcyl G, Kowalski P, Krzemień W, Krawczyk N, Kubicz E, Mohammed M, Niedźwiecki S, Pawlik-Niedźwiecka M, Raczyński L, Rudy Z, Silarski M, Wieczorek A, Wiślicki W, Zgardzińska B, Zieliński M, Moskal P. A feasibility study of ortho-positronium decays measurement with the J-PET scanner based on plastic scintillators. Eur Phys J C Part Fields 2016; 76:445. [PMID: 27547122 PMCID: PMC4978780 DOI: 10.1140/epjc/s10052-016-4294-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 08/01/2016] [Indexed: 05/13/2023]
Abstract
We present a study of the application of the Jagiellonian positron emission tomograph (J-PET) for the registration of gamma quanta from decays of ortho-positronium (o-Ps). The J-PET is the first positron emission tomography scanner based on organic scintillators in contrast to all current PET scanners based on inorganic crystals. Monte Carlo simulations show that the J-PET as an axially symmetric and high acceptance scanner can be used as a multi-purpose detector well suited to pursue research including e.g. tests of discrete symmetries in decays of ortho-positronium in addition to the medical imaging. The gamma quanta originating from o-Ps decay interact in the plastic scintillators predominantly via the Compton effect, making the direct measurement of their energy impossible. Nevertheless, it is shown in this paper that the J-PET scanner will enable studies of the [Formula: see text] decays with angular and energy resolution equal to [Formula: see text] and [Formula: see text], respectively. An order of magnitude shorter decay time of signals from plastic scintillators with respect to the inorganic crystals results not only in better timing properties crucial for the reduction of physical and instrumental background, but also suppresses significantly the pile-ups, thus enabling compensation of the lower efficiency of the plastic scintillators by performing measurements with higher positron source activities.
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Affiliation(s)
- D. Kamińska
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - A. Gajos
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - E. Czerwiński
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - D. Alfs
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - T. Bednarski
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - P. Białas
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - C. Curceanu
- INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, 00044 Frascati, Italy
| | - K. Dulski
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - B. Głowacz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - N. Gupta-Sharma
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - M. Gorgol
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, Pl. M. Curie-Sklodowskiej 1, 20-031 Lublin, Poland
| | - B. C. Hiesmayr
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
| | - B. Jasińska
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, Pl. M. Curie-Sklodowskiej 1, 20-031 Lublin, Poland
| | - G. Korcyl
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - P. Kowalski
- Świerk Computing Centre, National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
| | - W. Krzemień
- High Energy Department, National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
| | - N. Krawczyk
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - E. Kubicz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - M. Mohammed
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - Sz. Niedźwiecki
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - M. Pawlik-Niedźwiecka
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - L. Raczyński
- Świerk Computing Centre, National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
| | - Z. Rudy
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - M. Silarski
- INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, 00044 Frascati, Italy
| | - A. Wieczorek
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - W. Wiślicki
- Świerk Computing Centre, National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
| | - B. Zgardzińska
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, Pl. M. Curie-Sklodowskiej 1, 20-031 Lublin, Poland
| | - M. Zieliński
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
| | - P. Moskal
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348 Kraków, Poland
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Kisielewska M, Dębowski M, Zieliński M. Improvement of biohydrogen production using a reduced pressure fermentation. Bioprocess Biosyst Eng 2015; 38:1925-33. [DOI: 10.1007/s00449-015-1434-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 06/19/2015] [Indexed: 11/25/2022]
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Czerwiński E, Moskal P, Silarski M, Bass SD, Grzonka D, Kamys B, Khoukaz A, Klaja J, Krzemień W, Oelert W, Ritman J, Sefzick T, Smyrski J, Täschner A, Wolke M, Zieliński M. Determination of the η(')-proton scattering length in free space. Phys Rev Lett 2014; 113:062004. [PMID: 25148320 DOI: 10.1103/physrevlett.113.062004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Indexed: 06/03/2023]
Abstract
Taking advantage of both the high mass resolution of the COSY-11 detector and the high energy resolution of the low-emittance proton beam of the cooler synchrotron COSY, we determine the excitation function for the pp→ppη(') reaction close to threshold. Combining these data with previous results, we extract the scattering length for the η(')-proton potential in free space to be Re(a(pη(')))=0±0.43 fm and Im(a(pη(')))=0.37(-0.16)(+0.40) fm.
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Affiliation(s)
- E Czerwiński
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
| | - P Moskal
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
| | - M Silarski
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
| | - S D Bass
- Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, A 1090 Vienna, Austria
| | - D Grzonka
- Institute for Nuclear Physics and Jülich Center for Hadron Physics, Research Center Jülich, D-52425 Jülich, Germany
| | - B Kamys
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
| | - A Khoukaz
- IKP, Westfälische Wilhelms-Universität, D-48149 Münster, Germany
| | - J Klaja
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
| | - W Krzemień
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
| | - W Oelert
- Johannes Gutenberg-Universität Mainz, 550099 Mainz, Germany
| | - J Ritman
- Institute for Nuclear Physics and Jülich Center for Hadron Physics, Research Center Jülich, D-52425 Jülich, Germany
| | - T Sefzick
- Institute for Nuclear Physics and Jülich Center for Hadron Physics, Research Center Jülich, D-52425 Jülich, Germany
| | - J Smyrski
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
| | - A Täschner
- IKP, Westfälische Wilhelms-Universität, D-48149 Münster, Germany
| | - M Wolke
- Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden
| | - M Zieliński
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland
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Debowski M, Zieliński M, Krzemieniewski M, Rokicka M, Kupczyk K. Effectiveness of dairy wastewater treatment in a bioreactor based on the integrated technology of activated sludge and hydrophyte system. Environ Technol 2014; 35:1350-1357. [PMID: 24701933 DOI: 10.1080/09593330.2013.868528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The aim of this study was to determine the effectiveness of dairy wastewater treatment in the integrated technology based on the simultaneous use of the activated sludge method (AS) and a hydrophyte system (HS) (AS-HS), in this case, common reed (Phragmites australis) or common cattail (Typha latifolia). Experiments were conducted in an innovative reactor exploited in the fractional-technical scale at the loads of 0.05 mg BOD5/mg.d.m. d (biochemical oxygen demand) and 0.10 mg BOD5/mg.d.m d. The AS--HS enabled improving the removal effectiveness ofbiogenes characterized by concentrations of Ntot., N-NH4 and Ptot. In contrast, the integrated system had no significant reducing effect either on concentrations of organic compounds characterized by BOD5 and chemical oxygen demand parameters or on the structure of AS in the sequencing batch-type reactors.
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Urbaniak M, Kiedrzyńska E, Zieliński M, Tołoczko W, Zalewski M. Spatial distribution and reduction of PCDD/PCDF toxic equivalents along three shallow lowland reservoirs. Environ Sci Pollut Res Int 2014; 21:4441-4452. [PMID: 24337994 PMCID: PMC3945477 DOI: 10.1007/s11356-013-2401-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 11/25/2013] [Indexed: 05/29/2023]
Abstract
Reservoirs situated along a river continuum are ecosystems where rates of transfer of suspended matter and associated micropollutants are reduced due to sedimentation, accumulation, and biological and physical transformation processes. Among the micropollutants, PCDDs and PCDFs are substances that are highly toxic and carcinogenic for humans and animals. They are emitted and dispersed in the environment throughout the whole catchment area and may accumulate in aquatic and terrestrial food chains, creating a risk for human health. A wealth of data exists indicating the increase in the concentrations of pollutants along a river continuum. A comparative analysis of total, individual, and TEQ PCDD/PCDF concentrations in large lowland, shallow reservoirs located in different catchments ("I"-industrial/urban/agricultural, "U"-urban/agricultural, and "A"-agricultural/rural) showed decreases of the TEQ concentrations in bottom sediments along a gradient from the middle sections to the dam walls. Moreover, penta-, hexa-, and heptachlorinated CDD/CDF congeners were reduced from 28.8 up to 93.6 % in all three types of reservoirs. A further analysis of water samples from the inlets and outlets of the "A" reservoir confirmed this tendency.
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Affiliation(s)
- M Urbaniak
- European Regional Centre for Ecohydrology, Polish Academy of Sciences, Tylna 3, 90-364, Lodz, Poland,
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25
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Moskal P, Bednarski T, Białas P, Czerwiński E, Kapłon Ł, Kochanowski A, Korcyl G, Kowal J, Kozik T, Krzemień W, Molenda M, Niedźwiecki S, Pałka M, Pawlik M, Raczyński L, Rudy Z, Salabura P, Sharma N, Silarski M, Słomski A, Smyrski J, Strzelecki A, Wiślicki W, Zieliński M, Zoń N. 141: A novel TOF-PET detector based on organic scintillators. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)34162-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zieliński M. Valence band offset, strain and shape effects on confined states in self-assembled InAs/InP and InAs/GaAs quantum dots. J Phys Condens Matter 2013; 25:465301. [PMID: 24129261 DOI: 10.1088/0953-8984/25/46/465301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
I present a systematic study of self-assembled InAs/InP and InAs/GaAs quantum dot single-particle and many-body properties as a function of the quantum dot-surrounding matrix valence band offset. I use an atomistic, empirical tight-binding approach and perform numerically demanding calculations for half-million-atom nanosystems. I demonstrate that the overall confinement in quantum dots is a non-trivial interplay of two key factors: strain effects and the valence band offset. I show that strain effects determine both the peculiar structure of confined hole states of lens type InAs/GaAs quantum dots and the characteristic 'shell-like' structure of confined hole states in the commonly considered 'low-strain' lens type InAs/InP quantum dot. I also demonstrate that strain leads to single-band-like behavior of hole states of disk type ('indium flushed') InAs/GaAs and InAs/InP quantum dots. I show how strain and valence band offset affect quantum dot many-body properties: the excitonic fine structure, an important factor for efficient entangled photon pair generation, and the biexciton and charged exciton binding energies.
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Affiliation(s)
- M Zieliński
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
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Czajkowski W, Zieliński M. P-201EXTENDED TRANSCERVIVAL APPROACH WITH ELEVATION OF THE STERNUM FOR RESECTION OF THE THYROID CANCER METASTATIC NODES AFTER PREVIOUS THYROIDECTOMY: ANALYSIS OF THE LARGEST REPORTED SERIES. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt288.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Szlubowski A, Soja J, Filarecka A, Orzechowski S, Obrochta A, Jakubiak M, Zieliński M, Pankowski J. BTOG-113A COMBINED ULTRASOUND OF THE MEDIASTINUM BY USE OF A SINGLE ULTRASOUND BRONCHOSCOPE FOR NON-SMALL CELL LUNG CANCER RESTAGING: A PROSPECTIVE STUDY. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt288.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Debowski M, Krzemieniewski M, Zieliński M, Dudek M, Grala A. Respirometric studies on the effectiveness of biogas production from wastewaters originating from dairy, sugar and tanning industry. Environ Technol 2013; 34:1439-1446. [PMID: 24191477 DOI: 10.1080/09593330.2012.752874] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The objective of the present study was to determine the effectiveness of biogas production during methane fermentation of wastewaters originating from the dairy, tanning and sugar industries, by means ofrespirometric measurements conducted at a temperature of 35 degrees C. Experiments were carried out with the use of model tanks of volume 0.5 dm3. A high production yield of biogas, with methane content exceeding 60%, was achieved in the case of the anaerobic treatment of wastewaters from the dairy and sugar industries. A significantly lower effect was observed in the case of tanning wastewaters. The effectiveness of the fermentation process decreased with increasing loading of the tanks with a feedstock of organic compounds. By loading a model tank with this feedstock, the effectiveness of treatment ranged from 62.8% to 71.4% residual chemical oxygen demand for dairy wastewaters and from 57.9% to 64.1% for sugar industry wastewaters. The efficiency of organic compound removal from tanning wastewaters was below 50%, regardless of the method applied.
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Affiliation(s)
- M Debowski
- Department of Environmental Protection Engineering, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
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Zieliński M, Moskal P. Test of charge conjugation invariance in the decay of the ηmeson into π+π−π0. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123709037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Zielińska H, Moszkowska G, Zieliński M, Debska-Ślizień A, Rutkowski B, Trzonkowski P. Algorithm to manage highly sensitized kidney transplant recipients in Poland. Transplant Proc 2011; 43:2903-7. [PMID: 21996185 DOI: 10.1016/j.transproceed.2011.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Programs for immunized transplant recipients are essential to achieve graft survivals comparable to those of non-immunized recipients. The threshold in Poland is a PRA by the complement-dependent cytotoxicity (CDC) method greater than 50%, which includes approximately 3.8% of the patients. At the same time the United Network for Organ Sharing there recipients represent approximately 16% of the waiting list in the United Network for Organ Sharing (UNOS). The underestimation of the immunized group in Poland may be due to differences in laboratory techniques to assess alloantibodies. MATERIALS AND METHODS This study investigated 55 potential recipients with a PRA by CDC>50%. We used the following algorithm to assess their immunization: Luminex screening test for an HLA antibody; specificity assessed with Luminex Single Antigen, vPRA (evaluation of immunization of the patient); and analysis of acceptable HLA incompatibilities (HLAMatchmaker). RESULTS All recipients were positive class I anti-HLA antibodies and 94.5% were positive for class II. For the groups of subjects with PRA-CDC from 50% to 79% versus those greater than 80%, the average values of PRA-CDC were 62.2% and 89.5%, respectively. The virtual PRA results for these groups were 95.7% and 97.2%, respectively. In addition, anti-HLA-Cw, anti-DQ and anti-DP antibodies were detected in 77%, 84%, and 51% of recipients, respectively. Immunized recipients reported to the next transplant were characterized by the antibodies against mismatch only in 68%. For all potential recipients, additional acceptable non-compliance was determined with HLAMatchmaker: 152 specificity for locus A and 252 for locus B. CONCLUSIONS Evaluation of immunization status of recipient candidates should be routinely performed using tests to assess class and specificity as well as level of alloantibodies to enable determination of a safe potential donor. As a routine test, PRA-CDC underestimates the number of highly immunized patients. Exclusion from the list of patients with repeated non-compliance is a simplification, which reduces their chance for transplantation.
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Affiliation(s)
- H Zielińska
- Department of Clinical Immunology and Transplantology, Medical University of Gdańsk, Gdańsk, Poland.
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Czerwiński E, Moskal P, Grzonka D, Czyzykiewicz R, Gil D, Kamys B, Khoukaz A, Klaja J, Klaja P, Krzemień W, Oelert W, Ritman J, Sefzick T, Siemaszko M, Silarski M, Smyrski J, Täschner A, Wolke M, Wüstner P, Zdebik J, Zieliński M, Zipper W. Determination of the total width of the η' meson. Phys Rev Lett 2010; 105:122001. [PMID: 20867630 DOI: 10.1103/physrevlett.105.122001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Indexed: 05/29/2023]
Abstract
Taking advantage of both the low-emittance proton beam of the cooler synchrotron COSY and the high momentum precision of the COSY-11 detector system, the mass distribution of the η' meson was measured with a resolution of 0.33 MeV/c2 (FWHM), improving the experimental mass resolution by almost an order of magnitude with respect to previous results. Based on the sample of more than 2300 reconstructed pp → ppη' events, the total width of the η' meson was determined to be Γ(η') = 0.226 ± 0.017(stat) ± 0.014(syst) MeV/c2.
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Affiliation(s)
- E Czerwiński
- Institute of Physics, Jagiellonian University, PL-30-059 Cracow, Poland.
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Bryant GW, Zieliński M, Malkova N, Sims J, Jaskólski W, Aizpurua J. Effect of mechanical strain on the optical properties of quantum dots: controlling exciton shape, orientation, and phase with a mechanical strain. Phys Rev Lett 2010; 105:067404. [PMID: 20868012 DOI: 10.1103/physrevlett.105.067404] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 05/21/2010] [Indexed: 05/29/2023]
Abstract
We show how a nanomechanical strain can be used to dynamically reengineer the optics of quantum dots, giving a tool to manipulate mechanoexciton shape, orientation, fine structure splitting, and optical transitions, transfer carriers between dots, and interact qubits for quantum processing. Most importantly, a nanomechanical strain reengineers both the magnitude and phase of the exciton exchange coupling to tune exchange splittings, change the phase of spin mixing, and rotate the polarization of mechanoexcitons, providing phase and energy control of excitons.
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Affiliation(s)
- Garnett W Bryant
- Atomic Physics Division and Joint Quantum Institute, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8423, USA.
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Wojciechowska M, Wajnert A, Tomska-Foralewska I, Zieliński M, Czajka B. Properties of Magnesium Oxo-Fluoride Supports for Metal Catalysts. Catal Letters 2008. [DOI: 10.1007/s10562-008-9731-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Janczukowicz W, Zieliński M, Debowski M. Biodegradability evaluation of dairy effluents originated in selected sections of dairy production. Bioresour Technol 2008; 99:4199-4205. [PMID: 17976980 DOI: 10.1016/j.biortech.2007.08.077] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2007] [Revised: 08/28/2007] [Accepted: 08/28/2007] [Indexed: 05/25/2023]
Abstract
Main goal of the study was present the results of some respirometric measurements of activated sludge biodegrading the substrate in the wastewater originated in selected sections of the dairy processing line. The following dairy production effluents were analyzed in the research: the pumping station wastewater (combined wastewater from all the sections of the dairy factory), the apparatus room wastewater, the butter section wastewater, the milk reception point wastewater, the cheese section wastewater and the cottage cheese section wastewater. Apart from that, sweet and sour whey, which are secondary products of hard cheese and cottage cheese production, respectively, was the subject of the research. The amount of organic matter being oxidized during a 5-day measurement session was calculated on 1g of the activated sludge biomass. The research was conducted at the temperature of 20 degrees C and 35 degrees C at the applied sludge loading rate of A'=0.2 g BOD g(-1) dry mass d(-1), which ensured complete biodegradation. The results indicated a correlation between a technological process of dairy processing, an ultimate outcome of which was the wastewater analyzed, and dairy wastewater biodegradability. The results confirmed that all dairy processing effluents can be treated together, with the exception of whey, whose complex biodegradation demands may cause too much burden to any wastewater treatment technological system and thus should be managed within a separate installation.
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Affiliation(s)
- W Janczukowicz
- Department of Environmental Protection Engineering, Faculty of Environmental Sciences and Fisheries, University of Warmia and Mazury in Olsztyn, 10-957 Olsztyn, Prawocheńskiego St. 1, Poland
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Oszkinis G, Pukacki F, Juszkat R, Weigele JB, Gabriel M, Krasinski Z, Zieliński M, Krejza J. Restenosis after carotid endarterectomy: incidence and endovascular management. Interv Neuroradiol 2008; 13:345-52. [PMID: 20566103 DOI: 10.1177/159101990701300405] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2007] [Accepted: 11/12/2007] [Indexed: 11/15/2022] Open
Abstract
SUMMARY Surgical procedures designed to restore vascular patency for a recurrent stenosis following carotid endarterectomy (CEA) are burdened with technical difficulties as well as with the possibility of serious neurological complications. An endovascular approach employing transluminal percutaneous angioplasty and stenting (PTAS) is a promising solution to these problems. We aimed to evaluate the incidence of carotid artery restenosis following CEA, and to evaluate the safety and efficacy of treating post-CEA restenosis with an endovascular technique (PTAS). One hundred and two patients who underwent CEA for symptomatic and asymptomatic stenosis were included in the analysis. Clinical and sonographic follow-up examinations identified carotid artery restenosis in 16 patients, who fulfilled our criteria for endovascular treatment. Carotid PTAS was performed on symptomatic patients with a stenosis over 60% of the artery lumen (n=7) and in asymptomatic patients with a stenosis over 80% (n=9). The post-PTAS patients were evaluated by duplex sonography every three months over a 24 month follow-up period for evidence of restenosis. The cumulative incidence of post-CEA carotid restenosis qualifying for PTAS was 9.3% during an average 12-month follow-up interval. The average time from CEA to carotid PTAS was 11 months. All 16 endovascular procedures were technically successful. All of the carotid arteries were widely patent following PTAS. There were no immediate perioperative complications. One patient died two days after carotid PTAS from a cerebral hemorrhage. Thirteen of the 16 patients remained asymptomatic and had no sonographic evidence of significant restenosis during the 24- month post-PTAS follow-up period. One patient developed a symptomatic 80% restenosis proximal to the stent six months after carotid PTAS. Another patient developed an asymptomatic 60% restenosis proximal to the stent at 24 months. One patient was lost to follow-up. Following CEA, there is a significant risk of developing a symptomatic or high-grade carotid artery restenosis requiring correction. Endovascular treatment (PTAS) of a recurrent stenosis after CEA is a safe and effective alternative to repeat carotid surgery.
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Affiliation(s)
- G Oszkinis
- Department of General and Vascular Surgery, Poznań University of Medical Sciences Poznań, Poland -
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Goslar J, Wojciechowska M, Pietrowski M, Zieliński M. Carbon monoxide and oxygen interaction with Ru/MgF2 catalyst: IR and EPR studies. Res Chem Intermed 2007. [DOI: 10.1163/156856707782169444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Staging of the intrathoracic mediastinal and pulmonary lymph nodes is one of the most important problems in the treatment of non-small cell lung cancer. The map of the mediastinal and pulmonary lymph nodes proposed by Clifton F. Mountain and Carolyn M. Dresler gained wide acceptance and has become a standard of staging. However, it has some shortcomings of clarity in the description of localization of specific nodal stations. In our opinion, some modifications of this map are necessary. Based on our experience with extended mediastinoscopy and the new procedure, transcervical extended mediastinal lympadenectomy, the main changes we propose are: 1) the left innominate vein as the anatomic separation between nodal stations 1 and 2; 2) the merging of station 2 and 4 in a single right and left paratracheal station; 3) the shift of the midline to the left paratracheal margin; 4) the tracheobronchial angles as the landmark between stations 4 and 10 bilaterally; 5) the separation of three nodal groups in the subcarinal area: subcarinal (number 7), peribronchial (number 10R and 10L), and periesophageal (number 8); 6) the merging of station 5 and station 6 nodes in a single station with the following landmarks: medial border: the midline, lateral border, the descending aorta and upper border: the left innominate vein and lower border: the lower margin of the left pulmonary artery; and 7) the definition of station 3A nodes as those in front of the superior vena cava.
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Affiliation(s)
- M Zieliński
- Department of Thoracic Surgery, Pulmonary Hospital, Zakopane, Poland.
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Wojcieszak R, Zieliński M, Monteverdi S, Bettahar MM. Study of nickel nanoparticles supported on activated carbon prepared by aqueous hydrazine reduction. J Colloid Interface Sci 2006; 299:238-48. [PMID: 16563418 DOI: 10.1016/j.jcis.2006.01.067] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2005] [Revised: 01/10/2006] [Accepted: 01/31/2006] [Indexed: 11/27/2022]
Abstract
Nickel nanoparticles were obtained by the reduction in hydrazine aqueous media of nickel acetate as a precursor supported on activated carbon of high surface area. Classical catalysts using nickel acetate or nitrate were prepared for comparison. The catalysts were characterized by N(2) physisorption, H(2)-TPR, H(2)-adsorption, TPD, TEM, and XRD, and tested in the gas phase hydrogenation of benzene. Hydrazine catalysts were found much more active in benzene hydrogenation than corresponding classically prepared catalysts. Remarkably, their reactivity is comparable (turn-over frequency of 0.2001-0.2539 s(-1) at 393 K) to that of Pt classical catalysts supported on activated carbon in the same conditions. Evidence is given for the existence of the hydrogen spillover effect in benzene hydrogenation, not reported before in the literature. As a result of the hydrogen spillover effect, catalysts performances can be explained by a combination of surface metal atom reactivity, metal-support interaction strength, and specific surface area extent. Maximum effect is observed with hydrazine preparation method, for 1% Ni content and nickel acetate as a precursor. Unexpectedly, it was also found that hydrazine preparation increases the specific area of the catalysts.
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Affiliation(s)
- R Wojcieszak
- Catalyse Hétérogène, UMR 7565, Faculté des Sciences, Université Henri Poincaré, Nancy-I, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France
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Kuzdzal J, Soja J, Woś M, Zieliński M. Lymphangioleiomyomatosis presenting as a refractory chylothorax. J Cardiovasc Surg (Torino) 2005; 46:94-5. [PMID: 15758891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
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Zieliński M, Kuzdzał J, Staniec B, Harazda M, Nabiałek T, Pankowski J, Szlubowski A, Narski M. Extended rethymectomy in the treatment of refractory myasthenia gravis: original video-assisted technique of resternotomy and results of the treatment in 21 patients. Interact Cardiovasc Thorac Surg 2004; 3:376-80. [PMID: 17670265 DOI: 10.1016/j.icvts.2004.02.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
UNLABELLED The aim of the study was to analyze the impact of extended rethymectomy in patients with myasthenia gravis. Additionally, an original technique of resternotomy is described. Extended rethymectomy was performed on 21 patients with refractory myastenic symptoms after a previous transsternal thymectomy. In 8 patients the original video-assisted technique of complete longitudinal resternotomy with the aid of a special sternal retractor elevating the sternum from above and below was used. Severe intraoperative haemorrhage from the lacerated left innominate vein occurred in 3/13 patients operated on before the video-assisted technique of resternotomy had been introduced. In none of the 8 patients operated on with video-assisted resternotomy such a complication was noted. PATHOLOGICAL FINDINGS retained thymic lobe (4/21 patients), ectopic foci of thymic tissue (13/21 patients) no thymic tissue (4/21 patients). Results of follow-up: complete remission (11.8%), improvement (64.7%); no improvement (35.3%) during the follow-up period (mean 3.4 years). There was neither deterioration of myasthenia nor mortality during follow-up in this group. We conclude that described technique of video-assisted resternotomy reliably prevents the laceration of the heart and great vessels, and that complete remission and improvement rates in patients operated on with the extended rethymectomy are relatively low but deterioration of myasthenia is prevented.
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Affiliation(s)
- M Zieliński
- Department of Thoracic Surgery, Pulmonary Hospital, ul. Gładkie 1, 34-500 Zakopane, Poland.
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Kowalski J, Okopień B, Madej A, Zieliński M, Belowski D, Kalina Z, Herman ZS. Effects of atorvastatin, simvastatin, and fenofibrate therapy on monocyte chemoattractant protein-1 secretion in patients with hyperlipidemia. Eur J Clin Pharmacol 2003; 59:189-93. [PMID: 12756509 DOI: 10.1007/s00228-003-0581-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2002] [Accepted: 02/03/2003] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Monocytes that migrate into the arterial wall participate in the development and, eventually, rupture of the atherosclerotic plaque. The aim of this study was to evaluate the secretion of monocyte chemoattractant protein-1 (MCP-1) by monocytes from hyperlipidemic patients treated with hypolipidemic drugs, namely fenofibrate, simvastatin, or atorvastatin to determine what role is played by these drugs in the development and stabilization of the atherosclerotic plaque. METHODS Fifty-four hyperlipidemic patients, who did not respond to a low-fat diet, were treated with fenofibrate, simvastatin, or atorvastatin (18 patients in each group) for 1 month. The control group included 18 normolipidemic, healthy, age-matched participants. Ten hyperlipidemic patients were effectively treated with hypolipidemic diet alone for 1 month. This group was compared with a control group of ten healthy subjects. To accurately evaluate the adhesion molecule levels, we excluded hyperlipidemic patients and control subjects with any inflammatory disease. Before and after treatment, monocytes were isolated from peripheral blood. After stimulation with lipopolysaccharide (LPS), MCP-1 secretion was measured by enzyme-linked immunosorbent assay (ELISA). RESULTS MCP-1 levels were significantly higher in hyperlipidemic patients than controls: 15.8+/-0.47, 16.7+/-0.23, and 14.9+/-0.45 compared with 12.36+/-0.42 ng/ml. Fenofibrate, atorvastatin, and simvastatin significantly decreased MCP-1 levels from 15.8+/-0.47 to 8.79+/-0.89, from 16.7+/-0.23 to 7.46+/-0.73, and from 14.9+/-0.45 to 10.3+/-0.8 ng/ml, respectively. In the diet-treated group of hyperlipidemic patients, the level of MCP-1 before therapy was significantly higher than in controls (16.89+/-0.31 vs 12.45+/-0.36 ng/ml). The diet therapy caused a significant decrease in levels of MCP-1 to 15.1+/-0.36 ng/ml. There was a correlation between the decreased levels of lipids and the decreased release of MCP-1 in the patients treated with hypolipemic drugs. CONCLUSION The drug-induced decrease in MCP-1 secretion in hyperlipidemic patients suggests that, apart from acting on lipids, the hypolipidemic drugs studied may directly inhibit the activity of monocytes.
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Affiliation(s)
- J Kowalski
- Department of Clinical Pharmacology, Medical University of Silesia, 40-752 Katowice, 18 Medyków, Poland.
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Zieliński M, Zielińska A, Papiernik-Zielińska H, Yankwich PE. Nitrogen-15 fractionation in the thermal decomposition of nitrous oxide of natural isotopic composition. Isotopes Environ Health Stud 2002; 38:159-172. [PMID: 12546411 DOI: 10.1080/10256010208033323] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The 15N fractionation in the thermal decomposition of nitrous oxide (N2O) of natural isotopic composition has been investigated in quartz reaction vessel in the temperature interval 888-1073 K. The formulas relating the observed experimentally 15N fractionations with the primary 15N kinetic isotope effect, (k14/k15)p for 14N15N16O, and secondary 15N kinetic isotope effect, (k14/k15)s for 15N14N16O, have been derived. The experimentally estimated 15N kinetic isotope effects have been compared with the primary and secondary 15N kinetic isotope effects calculated with the absolute rate theory formulations applied to linear three atom molecules. A good agreement was found for the primary 15N kinetic isotope effect, (k14/k15)p, in the temperature interval 888-1007 K. But at 1073 K the decompositions of N2O, accompanied by NO (nitric oxide) formation proceed with a twice times smaller primary kinetic isotope effect, (k14/k15)p of 1.0251 +/- 0.0009, only, suggesting the nonlinear transition state structures with participation of the fourth external atom at high temperature decompositions of nitrous oxide. The nitrogen isotope effects determined in this study correlate well with nitrogen isotope fractionations observed in the natural biological, earth and atmospheric processes.
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Affiliation(s)
- M Zieliński
- Faculty of Chemistry, Jagiellonian University, Cracow, Poland
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Zieliński M, Zielińska A, Papiernik-Zielińska H, Ogrinc N, Kobal I, Senegacnik M. Carbon isotope fractionation in the thermal decomposition of uranyl formate. Isotopes Environ Health Stud 2002; 38:173-175. [PMID: 12546412 DOI: 10.1080/10256010208033324] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- M Zieliński
- Faculty of Chemistry, Jagiellonian University, Cracow, Poland
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Papla B, Zieliński M. Glomus tumour of the oesophagus. POL J PATHOL 2002; 52:133-5. [PMID: 11769400] [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: 02/23/2023] Open
Abstract
The authors describe a unique case of glomus tumour (glomangioma) located in the oesophagus in a 79-year-old woman.
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Affiliation(s)
- B Papla
- Department of Pathomorphology, Jagiellonian University Medical College, Kraków
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Okopień B, Haberka M, Cwalina L, Kowalski J, Belowski D, Madej A, Zieliński M, Krysiak R, Labuzek K, Kalina Z, Herman ZS. Plasma cytokines as predictors of coronary heart disease. Res Commun Mol Pathol Pharmacol 2002; 112:5-15. [PMID: 15080492] [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: 04/29/2023]
Abstract
BACKGROUND AND OBJECTIVE Growing body of evidence explicitly suggests the significant role of inflammatory processes in vascular diseases related to atherosclerosis. Monocytes, present in every phase of atherogenesis, are the principal cells accumulating in atherosclerotic plaque. Monocyte Chemotactic Protein 1 (MCP-1) seems to influence firm adherence of rolling monocytes and infiltration into the artery wall. Although the significant meaning of inflammation in atherogenesis has been proved, potential role of antiinflammatory cytokines remains unknown. Interleukin 10 (IL-10) is a major cytokine of pleiotropic antiinflammatory function known to exert inhibitory effects on monocytes. Recent data emerging from clinical and pathological studies suggest important role of thrombosis and fibrinolytic disorders in atherosclerosis complications especially in coronary heart disease (CHD). Individuals with greater Plasminogen Activator Inhibitor 1 (PAI-1) level are believed to be more susceptible to cardiovascular disease. METHODS In our study we measured the plasma levels of MCP-1, IL-10 and PAI-1 in 10 patients with stable angina and 10 healthy subjects. We also estimated its mutual correlations. The plasma levels of MCP-1, IL-10 and PAI-1 were determined with R&D kits (ELISA). RESULTS Plasma levels of MCP-1 were significantly higher (261.5+/-40.7 pg/mL vs 73.3+/-3.05 pg/mL; p<0.0002) and also levels of PAI-1 were higher (79.36+/-5.8 ng/mL vs 35.88+/-1.38 ng/mL; p<0.0001) in patients with SA compared with the healthy control subjects. Whereas plasma levels of IL-10 were lower (11.6+/-0.5 pg/mL vs 16.5+/-0.4 pg/mL; p<0.0001) compared with control group and correlated with both MCP-1 plasma level (r=-0.67; p<0.0015) and PAI-1 concentration (r=-0.69; p<0.0008). CONCLUSION The data obtained confirm the predictive role of cytokines in patients with stable coronary heart disease. The negative correlation of anti-inflammatory IL-10 and PAI-1 was also found.
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Affiliation(s)
- B Okopień
- Department of Clinical Pharmacology, Medical University of Silesia, Katowice, Poland
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Zieliński M, Malejczyk J. [Experimental closure of bronchial stump after pneumonectomy with the greater omentum]. Pol Merkur Lekarski 2001; 11:323-6. [PMID: 11770311] [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: 02/23/2023]
Abstract
Authors present their results with experimental closure of bronchial stump after pneumonectomy with pedicled flaps of the greater omentum in sheep. In the experimental group left thoracotomy and laparotomy was performed. The left lung was resected and the bronchial stump was closed with the pedicled flap of the greater omentum. In controls standard left pneumonectomy was performed. After different periods of time (1-12 weeks) the animals were sacrificed, the bronchial stumps were excised and submitted to pathological studies. In none case bronchial fistula occurred. Pathological studies showed that the omentum at the base of the bronchial stump was transformed in the fibrous tissue. The bronchial epithelium begins to cover the omentum in 4 weeks after the operation and this process is finished in 12 weeks after the operation. Pedicled flap of the greater omentum seems to be useful in surgical treatment of bronchial fistulas.
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Affiliation(s)
- M Zieliński
- Zakład Histologii i Embriologii Instytutu Biostruktury Akademii Medycznej w Warszawie
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Nalepa P, Zieliński M. [Two cases of malignant mesothelioma of the pleura within one family]. Pol Merkur Lekarski 2001; 11:165-8. [PMID: 11757221] [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: 02/23/2023]
Abstract
The two patients (brothers) had in their early childhood contact with asbestos (asbestos blanket). Because of various degree of disease advancement, various methods of treatment were used. One brother was treated with radical surgery followed by radiotherapy; the other brother with more advanced disease underwent palliative treatment using chemotherapy. The patient who underwent surgery has been living for three years now free of tumour relapse, where's in the patient treated with chemotherapy, after partial remission of the disease, a relapse of tumor was observed. Currently, he undergoes symptomatic treatment. The cases above have been presented because the familial occurrence of this neoplasm is extremely rare and to show the possibility of radical surgical treatment of this type of neoplasm which has poor prognosis.
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Affiliation(s)
- P Nalepa
- Oddział Chorób Płuc i Gruźlicy 5, Wojskowego Szpitala Klinicznego z Poliklinika SPZOZ w Krakowie
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Okopień B, Hyper M, Kowalski J, Belowski D, Madej A, Zieliński M, Tokarz D, Kalina Z, Herman Z. The new diagnostic approache in atherosclerosis management. ATHEROSCLEROSIS SUPP 2001. [DOI: 10.1016/s1567-5688(01)80205-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zieliński M. Technique of transcervical--subxiphoid-vats "maximal" thymectomy in treatment of myasthenia gravis. Przegl Lek 2001; 57 Suppl 5:64-5. [PMID: 11202297] [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: 02/19/2023]
Abstract
Operative technique of transcervical-subxiphoid-VATS thymectomy is described. Total sternotomy is avoided which makes the procedure less invasive without compromising its radicality. The operation is performed with aid of special device with two sternal retractors elevating the sternum from above and below and facilitating access to the mediastinum. The mediastinal pleura is incised bilaterally and exenteration of the mediastinal fat is done under control of video camera inserted through the thoracoscopic ports. Two team approach is proposed: one team, called "the cervical" team performs dissection of the neck and the superior mediastinum; the "subxiphoid" team removes the fat tissue of the anterior mediastinum. This approach makes possible reduction of the operative time to 1.5-2 h. No complications were noted in the group of 8 patients operated on by the moment of submission of the abstract.
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Affiliation(s)
- M Zieliński
- Department of Thoracic Surgery of Specialist Pulmonary Hospital in Zakopane, Poland
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