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    Tytuł:
    Evolution Of The Results Of 1500 Liver Transplantations Performed In The Department Of General, Transplant And Liver Surgery Medical University Of Warsaw
    Autorzy:
    Krawczyk, Marek
    Grąt, Michał
    Grąt, Karolina
    Wronka, Karolina
    Krasnodębski, Maciej
    Stypułkowski, Jan
    Masior, Łukasz
    Hołówko, Wacław
    Ligocka, Joanna
    Nyckowski, Paweł
    Wróblewski, Tadeusz
    Paluszkiewicz, Rafał
    Patkowski, Waldemar
    Zieniewicz, Krzysztof
    Pączek, Leszek
    Milkiewicz, Piotr
    Ołdakowska-Jedynak, Urszula
    Najnigier, Bogusław
    Dudek, Krzysztof
    Remiszewski, Piotr
    Grzelak, Ireneusz
    Kornasiewicz, Oskar
    Kotulski, Marcin
    Smoter, Piotr
    Grodzicki, Mariusz
    Korba, Michał
    Kalinowski, Piotr
    Skalski, Michał
    Zając, Krzysztof
    Stankiewicz, Rafał
    Przybysz, Marta
    Cieślak, Bartosz
    Nazarewski, Łukasz
    Nowosad, Małgorzata
    Kobryń, Konrad
    Wasilewicz, Michał
    Raszeja-Wyszomirska, Joanna
    Piwowarska, Jolanta
    Giercuszkiewicz, Dorota
    Sańko-Resmer, Joanna
    Rejowski, Sławomir
    Szydłowska-Jakimiuk, Monika
    Górnicka, Barbara
    Wróblewska-Ziarkiewicz, Bogna
    Mazurkiewicz, Michał
    Niewiński, Grzegorz
    Pawlak, Jacek
    Pacho, Ryszard
    Powiązania:
    https://bibliotekanauki.pl/articles/1395614.pdf
    Data publikacji:
    2015-05-01
    Wydawca:
    Index Copernicus International
    Tematy:
    liver transplantation
    survival
    outcomes
    donors
    center experience
    center volume
    Opis:
    Liver transplantation is a well-established treatment of patients with end-stage liver disease and selected liver tumors. Remarkable progress has been made over the last years concerning nearly all of its aspects. The aim of this study was to evaluate the evolution of long-term outcomes after liver transplantations performed in the Department of General, Transplant and Liver Surgery (Medical University of Warsaw). Material and methods. Data of 1500 liver transplantations performed between 1989 and 2014 were retrospectively analyzed. Transplantations were divided into 3 groups: group 1 including first 500 operations, group 2 including subsequent 500, and group 3 comprising the most recent 500. Five year overall and graft survival were set as outcome measures. Results. Increased number of transplantations performed at the site was associated with increased age of the recipients (p<0.001) and donors (p<0.001), increased rate of male recipients (p<0.001), and increased rate of piggyback operations (p<0.001), and decreased MELD (p<0.001), as well as decreased blood (p=0.006) and plasma (p<0.001) transfusions. Overall survival was 71.6% at 5 years in group 1, 74.5% at 5 years in group 2, and 85% at 2.9 years in group 3 (p=0.008). Improvement of overall survival was particularly observed for primary transplantations (p=0.004). Increased graft survival rates did not reach the level of significance (p=0.136). Conclusions. Long-term outcomes after liver transplantations performed in the Department of General, Transplant and Liver Surgery are comparable to those achieved in the largest transplant centers worldwide and are continuously improving despite increasing recipient age and wider utilization of organs procured from older donors.
    Źródło:
    Polish Journal of Surgery; 2015, 87, 5; 221-230
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Graphene oxide-based nano-materials as catalysts for oxygen reduction reaction
    Autorzy:
    Bojarska, Zuzanna
    Mazurkiewicz-Pawlicka, Marta
    Makowski, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/185347.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    low-temperature fuel cells
    carbon nanomaterials
    oxygen reduction reaction
    DFAFC
    ogniwa paliwowe niskotemperaturowe
    nanomateriały węglowe
    reakcja redukcji tlenu
    Opis:
    The aim of the presented research was to test different carbon supports, such as graphene oxide (GO), graphene oxide modified with ammonia (N-GO), and reduced graphene oxide (rGO) for catalysts used in a low-temperature fuel cell, specifically a proton exchange membrane fuel cell (PEMFC). Modification of the carbon supports should lead to different catalytic activity in the fuel cell. Reduction of GO leads to partial removal of oxygen groups from GO, forming rGO. Modification of GO with ammonia results in an enrichment of GO structure with nitrogen. A thorough analysis of the used supports was carried out, using various analytical techniques, such as FTIR spectroscopy and thermogravimetric (TGA) analysis. Palladium and platinum catalysts deposited on these supports were produced and used for the oxygen reduction reaction (ORR). Catalytic activity tests of the prepared catalysts were carried out in a home-made direct formic acid fuel cell (DFAFC). The tests showed that the enrichment of the GO structure with nitrogen caused an increase in the catalytic activity, especially for the palladium catalyst. However, reduction of GO resulted in catalysts with higher activity and the highest catalytic activity was demonstrated by Pt/rGO, because platinum is the most catalytically active metal for ORR. The obtained results may be significant for low-temperature fuel cell technology, because they show that a simple modification of a carbon support may lead to a significant increase of the catalyst activity. This could be useful especially in lowering the cost of fuel cells, which is an important factor, because thousands of fuel cells running on hydrogen are already in use in commercial vehicles, forklifts, and backup power units worldwide. Another method used for lowering the price of current fuel cells can involve developing new clean and cheap production methods of the fuel, i.e. hydrogen. One of them employs catalytic processes, where carbon materials can be also used as a support and it is necessary to know how they can influence catalytic activity.
    Źródło:
    Chemical and Process Engineering; 2019, 40, 4; 361--376
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microscopic fungi on Schoenoplectus lacustris in Plociczno and Plociowe lakes in Drawa National Park (northwest Poland)
    Autorzy:
    Mazurkiewicz-Zapałowicz, Kinga
    Rybińska, Aleksandra
    Łopusiewicz, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/952562.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    biodiversity
    microfungi
    schoenoplectus
    drawa national park
    Opis:
    In the period 2009–2011, the micromycetes causing symptoms on the leaves of Schoenoplectus lacustris (SL) from Płociczno and Płociowe lakes in Drawa National Park (DNP) were investigated. A total of 39 taxa of microscopic fungi and chromistan fungi were found. The taxonomic structure of the mycobiota was dominated by anamorphs of Ascomycota. In each year of the study, the SL fungal species richness was higher in Płociowe Lake than in Płociczno Lake. In all the years of study in both lakes, the fungal community on SL was composed of the following six dominant species: Alternaria alternata, Cladosporium herbarum, Fusarium incarnatum, F. sacchari, Gibberella avenacea, and Pleospora scirpicola. The species occurring exclusively in Płociczno Lake were Papulaspora immersa, Puccinia scirpi, and Trichothecium roseum, and those found only in Płociowe Lake were Acremoniella atra, Alternaria atra, Aspergillus niger, A. versicolor, Fusarium oxysporum, Gonatobotrys simplex, Massariosphaeria scirpina, Microascus brevicaulis, Penicillium chrysogenum, and Stagonospora aquatica. Only one confirmation of the occurrence of Puccinia scirpi and the lack of other specialized obligate parasites indicate the good health of SL in DNP. The facultative parasites, inter alia, Boeremia exigua, Chaetomium globosum, Fusarium culmorum, F. incarnatum, F. sacchari, Gibberella avenacea, and Stagonospora aquatica that are present on plants as part of the natural process of apoptosis may influence the health of SL.
    Źródło:
    Acta Mycologica; 2017, 52, 2
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New Trends in Substrates and Biogas Systems in Poland
    Autorzy:
    Marks, Stanisław
    Dach, Jacek
    Fernandez Morales, Francisco Jesus
    Mazurkiewicz, Jakub
    Pochwatka, Patrycja
    Gierz, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/124959.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    biogas plant
    biowaste
    agriculture
    industry
    biogas
    methane
    new trends
    substrates
    new technologies
    Opis:
    The amendment to the Polish Renewable Energy Act creates great opportunities for the development of the biogas market in Poland. Years of experience in biogas production in Western Europe and the development of biogas installations in Poland indicate the requirement to look for alternative substrates to those produced from dedicated crop production (mainly maize silage). Feasible solutions include the use of biodegradable waste from agriculture or industry as well as municipal landfill sites. The usage of these substrates in the methane fermentation process offers low cost, high biogas production and the safe management of biowaste. The arguments for using them in biogas installations are persuasive. This article presents new approaches of biogas plant installation solutions which allows for the effective fermentation of biowaste from animal and vegetable production, from the agro-food industry and from municipal waste.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 4; 19-25
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Patients with immune system deficiencies and their predisposition to sepsis - the current state of knowledge.
    Autorzy:
    Lizurej, Wojciech
    Lorek, Filip
    Mazurkiewicz, Michał
    Popołonyk, Natalia
    Mazurkiewicz, Łukasz
    Janecka, Julia
    Kluzik, Anna
    Grześkowiak, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/2216179.pdf
    Data publikacji:
    2023-06
    Wydawca:
    Towarzystwo Pomocy Doraźnej
    Źródło:
    Critical Care Innovations; 2023, 6, 2; 41-60
    2545-2533
    Pojawia się w:
    Critical Care Innovations
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tragedia pod ziemią
    Autorzy:
    Klimczak, Przemysław.
    Powiązania:
    Przegląd Pożarniczy 2022, nr 2, s. 54-56
    Współwytwórcy:
    Lewandowska, Maria. Autor
    Mazurkiewicz, Julia. Autor
    Szelka, Łukasz. Autor
    Data publikacji:
    2022
    Tematy:
    Kopalnia Węgla Kamiennego "Halemba"
    Ratownictwo
    Ratownictwo górnicze
    Górnicy
    Kopalnie
    Wybuch
    Straż pożarna
    Katastrofy górnicze
    Artykuł z czasopisma fachowego
    Opis:
    W artykule opisano katastrofę górniczą w Upper Big Branch Mine (Zachodnia Wirginia), gdzie 5 kwietnia 2010 roku z powodu wybuchu metanu zginęło 29 z 31 górników. Wykazano liczne zaniedbania w obszarze bezpieczeństwa pracy. Wybuch metanu został spowodowany przez zapłon kombajnu, w którym z powodu braku wody nie zadziałały systemy zraszania. Omówiono akcję ratowniczą, porównano ją do akcji w kopalni Halemba w Rudzie Śląskiej z 21 listopada 2006 roku.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
      Wyświetlanie 1-10 z 10

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