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    Wyświetlanie 1-7 z 7
    Tytuł:
    Addresses
    Autorzy:
    Waliszewski, Tomasz
    Scholl, Tomasz
    Dzierzbicka, Dorota
    Chrzanowska, Ewa
    Obłuski, Artur
    Nowakowski, Wojciech
    El-Tayeb, Mahmoud
    Paner, Henryk
    Zych, Iwona
    Bonnet, Charles
    Schoske, Sylvia
    Wildung, Dietrich
    Francigny, Vincent
    Dyczek, Piotr
    Yellin, Janice
    Olszewski, Marek Tycjan
    Parandowska, Ewa
    Ryndziewicz, Robert
    Powiązania:
    https://bibliotekanauki.pl/chapters/1047623.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Źródło:
    Aegyptus et Nubia Christiana. The Włodzimierz Godlewski jubilee volume on the occasion of his 70th birthday; 9-14
    9788323547266
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimate of radon exposure in geothermal SPAs in Poland
    Autorzy:
    Walczak, Katarzyna
    Olszewski, Jerzy
    Zmyślony, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2177082.pdf
    Data publikacji:
    2015-09-21
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    Polska
    occupational exposure
    worker
    radon
    ionizing radiation
    spa visitor
    Opis:
    Objectives Geothermal waters may contain soluble, radioactive radon gas. Spa facilities that use geothermal water may be a source of an increased radiation dose to people who stay there. It has been necessary to assess the exposure to radon among people: workers and visitors of spa centers that use geothermal waters. Material and Methods In 2013, workers of the Nofer Institute of Occupational Medicine measured concentrations of radon over the geothermal water surfaces in 9 selected Polish spa centers which use geothermal water for recreational and medicinal purposes. The measurements were performed by active dosimetry using Lucas scintillation cells. Results According to our research, the doses received by the personnel in Polish geothermal spas are < 0.6 mSv/year. In 1 of the investigated spas, the estimated annual dose to the staff may exceed 3 mSv/year. Conclusions In Polish geothermal spas, neither the workers nor the visitors are at risk of receiving doses that exceed the safe limits.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2016, 29, 1; 161-166
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plasma magnesium concentration in patients undergoing coronary artery bypass grafting
    Autorzy:
    Kotlinska-Hasiec, Edyta
    Makara-Studzinska, Marta
    Czajkowski, Marek
    Rzecki, Ziemowit
    Olszewski, Krzysztof
    Stadnik, Adam
    Piłat, Jacek
    Rybojad, Beata
    Dąbrowski, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/989882.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    magnesium
    supplementation
    age
    profession
    community education
    Opis:
    Introduction. Magnesium (Mg) plays a crucial role in cell physiology and its deficiency may cause many disorders which often require intensive treatment. The aim of this study was to analyse some factors affecting preoperative plasma Mg concentration in patients undergoing coronary artery bypass grafting (CABG). Materials and method. Adult patients scheduled for elective CABG with cardio-pulmonary bypass (CPB) under general anaesthesia were studied. Plasma Mg concentration was analysed before surgery in accordance with age, domicile, profession, tobacco smoking and preoperative Mg supplementation. Blood samples were obtained from the radial artery just before the administration of anaesthesia. Results. 150 patients were studied. Mean preoperative plasma Mg concentration was 0.93 ± 0.17 mmol/L; mean concentration in patients – 1.02 ± 0.16; preoperative Mg supplementation was significantly higher than in patients without such supplementation. Moreover, intellectual workers supplemented Mg more frequently and had higher plasma Mg concentration than physical workers. Plasma Mg concentration decreases in elderly patients. Patients living in cities, on average, had the highest plasma Mg concentration. Smokers had significantly lower plasma Mg concentration than non smokers. Conclusions. 1. Preoperative magnesium supplementation increases its plasma concentration. 2. Intellectual workers frequently supplement magnesium. 3. Smoking cigarettes decreases plasma magnesium concentration.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2017, 24, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occupational exposure to radon for underground tourist routes in Poland: Doses to lung and the risk of developing lung cancer
    Autorzy:
    Walczak, Katarzyna
    Olszewski, Jerzy
    Politański, Piotr
    Zmyślony, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2161885.pdf
    Data publikacji:
    2017-07-14
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    occupational exposure
    radon
    effective dose
    relative risk of lung cancer
    equivalent dose to lung
    underground tourist routes
    Opis:
    Objectives Radon concentrations for 31 Polish underground tourist routes were analyzed. The equivalent dose to the lung, the effective dose and the relative risk were calculated for employees of the analyzed routes on the grounds of information on radon concentrations, work time, etc. Material and Methods The relative risk for lung cancers was calculated using the Biological Effects of Ionizing Radiation (BEIR) VI Committee model. Equivalent doses to the lungs of workers were determined using the coefficients calculated by the Kendall and Smith. The conversion coefficient proposed by the International Atomic Energy Agency (IAEA) in the report No. 33 was used for estimating the effective doses. Results In 13 routes, the effective dose was found to be above 1 mSv/year, and in 3 routes, it exceeded 6 mSv/year. For 5 routes, the equivalent dose to lungs was higher than 100 mSv/year, and in 1 case it was as high as 490 mSv/year. In 22.6% of underground workplaces the risk of developing lung cancer among employees was about 2 times higher than that for the general population, and for 1 tourist route it was about 5 times higher. The geometric mean of the relative risk of lung cancer for all workers of underground tourist routes was 1.73 (95% confidence interval (CI): 1.6–1.87). Routes were divided into: caves, mines, post-military underground constructions and urban underground constructions. Conclusions The difference between levels of the relative risk of developing lung cancer for all types of underground tourist routes was not found to be significant. If we include the professional group of the employees of underground tourist routes into the group of occupational exposure, the number of persons who are included in the Category A due to occupational exposure may increase by about 3/4. The professional group of the employees of underground tourist routes should be monitored for their exposure to radon. Int J Occup Med Environ Health 2017;30(5):687–694
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2017, 30, 5; 687-694
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Authors’ response (December 8, 2017) to the letter to the Editor concerning the paper “Occupational exposure to radon for underground tourist routes in Poland: Doses to lung and the risk of developing lung cancer”
    Autorzy:
    Walczak, Katarzyna
    Olszewski, Jerzy
    Politański, Piotr
    Zmyślony, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2162023.pdf
    Data publikacji:
    2018-10-24
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    radon
    cancer risk
    LNT model
    hormesis
    radiation risk model
    low dose ionizing radiation
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2018, 31, 5; 707-709
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radon intercomparison tests : Katowice, 2016
    Autorzy:
    Chałupnik, Stanisław
    Skubacz, Krystian
    Wysocka, Małgorzata
    Mazur, Jadwiga
    Bonczyk, Michał
    Kozak, Krzysztof
    Grządziel, Dominika
    Urban, Paweł
    Tchorz-Trzeciakiewicz, D.
    Kozłowska, Beata
    Walencik-Łata, Agata
    Podstawczyńska, Agnieszka
    Olszewski, Jerzy
    Bartak, Jakub
    Karpińska, Maria
    Wołoszczuk, Katarzyna
    Dohojda, Marek
    Nowak, Jakub
    Długosz-Lisiecka, Magdalena
    Foerster, Elisabeth
    Przylibski, Tadeusz A.
    Powiązania:
    https://bibliotekanauki.pl/articles/146183.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    active monitors
    passive monitors
    Polish Radon Centre
    proficiency test
    radon
    Opis:
    At the beginning of the year 2016, the representatives of the Polish Radon Centre decided to organize proficiency tests (PTs) for measurements of radon gas and radon decay products in the air, involving radon monitors and laboratory passive techniques. The Silesian Centre for Environmental Radioactivity of the Central Mining Institute (GIG), Katowice, became responsible for the organization of the PT exercises. The main reason to choose that location was the radon chamber in GIG with a volume of 17 m3 , the biggest one in Poland. Accordingly, 13 participants from Poland plus one participant from Germany expressed their interest. The participants were invited to inform the organizers about what types of monitors and methods they would like to check during the tests. On this basis, the GIG team prepared the proposal for the schedule of exercises, such as the required level(s) of radon concentrations, the number and periods of tests, proposed potential alpha energy concentration (PAEC) levels and also the overall period of PT. The PT activity was performed between 6th and 17th June 2016. After assessment of the results, the agreement between radon monitors and other measurement methods was confirmed. In the case of PAEC monitors and methods of measurements, the results of PT exercises were consistent and confirmed the accuracy of the calibration procedures used by the participants. The results of the PAEC PTs will be published elsewhere; in this paper, only the results of radon intercomparison are described.
    Źródło:
    Nukleonika; 2020, 65, 2; 127-132
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reduction of CO2 emissions from offshore combined cycle diesel engine-steam turbine power plant powered by alternative fuels
    Autorzy:
    Olszewski, Wojciech
    Dzida, Marek
    Nguyen, Van Giao
    Cao, Dao Nam
    Powiązania:
    https://bibliotekanauki.pl/articles/34613948.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    ship power plants
    alternative marine fuel
    greenhouse gases
    CO2 emissions
    combined power system
    diesel engines
    steam turbine
    gas turbine
    Opis:
    Diverse forms of environmental pollution arise with the introduction of materials or energy that exert adverse effects on human health, climate patterns, ecosystems, and beyond. Rigorous emission regulations for gases resulting from fuel combustion are being enforced by the European Union and the International Maritime Organization (IMO), directed at maritime sectors to mitigate emissions of SOx, NOx, and CO2. The IMO envisions the realisation of its 2050 targets through a suite of strategies encompassing deliberate reductions in vessel speed, enhanced ship operations, improved propulsion systems, and a transition towards low and zero-emission fuels such as LNG, methanol, hydrogen, and ammonia. While the majority of vessels currently depend on heavy fuel or low-sulphur fuel oil, novel designs integrating alternative fuels are gaining prominence. Technologies like exhaust gas purification systems, LNG, and methanol are being embraced to achieve minimised emissions. This study introduces the concept of a high-power combined ship system, composed of a primary main engine, a diesel engine, and a steam turbine system, harnessing the energy contained within the flue gases of the main combustion engine. Assumptions, constraints for calculations, and a thermodynamic evaluation of the combined cycle are outlined. Additionally, the study scrutinises the utilisation of alternative fuels for ship propulsion and their potential to curtail exhaust emissions, with a specific focus on reducing CO2 output.
    Źródło:
    Polish Maritime Research; 2023, 3; 71-80
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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