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Wyświetlanie 1-7 z 7
Tytuł:
Reorganizacja systemu zarządzania kryzysowego resortu obrony narodowej
Reorganization of the national defence sector crisis management system
Autorzy:
Stelmach, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/24200898.pdf
Data publikacji:
2023
Wydawca:
Wojskowy Instytut Techniczny Uzbrojenia
Tematy:
system zarządzania kryzysowego
zespół zarządzania kryzysowego
plan zarządzania kryzysowego
sytuacja kryzysowa
crisis management system
crisis management board
crisis management plan
crisis situation
Opis:
Każdy rozwinięty system zarządzania kryzysowego, w tym ten funkcjonujący w Polsce, ma zapewniać ochronę ludności przed efektami katastrof naturalnych i awarii technicznych (Majchrzak, 2016). Potencjał sił i środków dysponowany przez Siły Zbrojne RP oraz ich dyspozycyjność wskazują na znaczącą rolę resortu Obrony Narodowej we wsparciu bezpieczeństwa wewnętrznego państwa poprzez czynny udział w reagowaniu kryzysowym (Michailiuk, Stępień, Denysiuk, 2016). Niestety, na przełomie ostatnich 10 lat, tym razem w obliczu trwającej wojny w Ukrainie, doszło do drugiej, poważnej zmiany w systemie zarządzania kryzysowego resortu obrony narodowej. Zarysowany został dość czytelny podział między Dowództwem Wojsk Obrony Terytorialnej a Dowództwem Operacyjnym Rodzajów Sił Zbrojnych na obszar zadań ochrony ludności przed efektami katastrof naturalnych czy awarii technicznych w pierwszym przypadku oraz zadań pomocy służbom w utrzymaniu bezpieczeństwa wewnętrznego, w tym przeciwdziałania zagrożeniom terrorystycznym, kończąc na przeciwdziałaniu zagrożeniom militarnym w drugim przypadku, co jest przedstawione w niniejszym artykule. Niestety z naukowego punktu widzenia nie jest to podejście holistyczne, rozmija się również z zapisami Strategii Bezpieczeństwa Narodowego Rzeczypospolitej Polskiej z 2020 r. Czy fakt zaimplementowania takich właśnie zmian okaże się właściwy to pokażą doświadczenia i wnioski w kolejnych miesiącach i latach, a należy dodać, że sytuacja bezpieczeństwa w tej części Europy zmienia się z dnia na dzień.
Each developed system of crisis management, including that functioning in Poland, has to provide protection of population against the effects of natural disasters or technological failures (Majchrzak, 2016). Potential of forces and assets being at the disposal of the Armed Forces of the Republic of Poland and the level of their readiness indicate on significant meaning of the national defence sector for assisting the state’s internal security by an active participation in crisis reactions (Michailiuk, Stępień, Denysiuk, 2016). Unfortunately, the national defence sector crisis management system has faced the second serious change for recent 10 years, and this time during the war in Ukraine. A quite legible division can be observed between the Command of Territorial Defence Troops and the Operational Headquarter of Armed Forces Services on the area of assignments protecting the population against the effects of natural disasters or technical failures in the first case, and on the area of assignments aimed to assist the services in keeping the internal security, including counter-actions against terroristic threats, and ending on counteracting the military threats in the second case, what is presented in the paper. Unfortunately, it is not a holistic approach from the scientific point of view, and it also is not in line with the wordings of the National Security Strategy of the Operational Headquarter of Armed Forces Services on the area of assignments protecting the population against the effects of natural disasters or technical failures in the first case, and on the area of assignments aimed to assist the services in keeping the internal security, including counter-actions against terroristic threats, and ending on counteracting the military threats in the second case, what is presented in the paper. Unfortunately, it is not a holistic approach from the scientific point of view, and it also is not in line with the wordings of the National Security Strategy of the Republic of Poland from 2020. The justification for implementation of these changes can be proved by experience and conclusions of consecutive months and years, but it has to be added that the security environment is changing on a daily basis in this part of Europe.
Źródło:
Problemy Techniki Uzbrojenia; 2023, 52, 163; 39--55
1230-3801
Pojawia się w:
Problemy Techniki Uzbrojenia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nitric oxide and platelet energy metabolism.
Autorzy:
Tomasiak, Marian
Stelmach, Halina
Rusak, Tomasz
Wysocka, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/1041559.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
mitochondrial energy production
porcine platelets
nitric oxide
glycolysis
Opis:
This study was undertaken to determine whether nitric oxide (NO) can affect platelet responses through the inhibition of energy production. It was found that NO donors: S-nitroso-N-acetylpenicyllamine, SNAP, (5-50 μM) and sodium nitroprusside, SNP, (5-100 μM) inhibited collagen- and ADP-induced aggregation of porcine platelets. The corresponding IC50 values for SNAP and SNP varied from 5 to 30 μM and from 9 to 75 μM, respectively. Collagen- and thrombin-induced platelet secretion was inhibited by SNAP (IC50 = 50 μM) and by SNP (IC50 = 100 μM). SNAP (20-100 μM), SNP (10-200 μM) and collagen (20 μg/ml) stimulated glycolysis in intact platelets. The degree of glycolysis stimulation exerted by NO donors was similar to that produced by respiratory chain inhibitors (cyanide and antimycin A) or uncouplers (2,4-dinitrophenol). Neither the NO donors nor the respiratory chain blockers affected glycolysis in platelet homogenate. SNAP (20-100 μM) and SNP (50-200 μM) inhibited oxygen consumption by platelets. The effect of SNP and SNAP on glycolysis and respiration was not reduced by 1H-[1,2,4]oxadiazolo-[4,3-a]quinoxalin-1-one, a selective inhibitor of NO-stimulated guanylate cyclase. SNAP (5-100 μM) and SNP (10-300 μM) inhibited the activity of platelet cytochrome oxidase and had no effect on NADH:ubiquinone oxidoreductase and succinate dehydrogenase. Blocking of the mitochondrial energy production by antimycin A slightly affected collagen-evoked aggregation and strongly inhibited platelet secretion. The results indicate that: 1) in porcine platelets NO is able to diminish mitochondrial energy production through the inhibition of cytochrome oxidase, 2) the inhibitory effect of NO on platelet secretion (but not aggregation) can be attributed to the reduction of mitochondrial energy production.
Źródło:
Acta Biochimica Polonica; 2004, 51, 3; 789-803
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systemy bezzałogowych statków powietrznych w przestrzeni powietrznej kontrolowanej
Autorzy:
Gugała, Tomasz
Żurek, Józef
Żyluk, Andrzej
Stelmach, Anna
Powiązania:
https://bibliotekanauki.pl/books/2178938.pdf
Data publikacji:
2019
Wydawca:
Lotnicza Akademia Wojskowa
Opis:
Monografia dotyczy głównie zagadnień związanych z eksploatacją SBSP w przestrzeni powietrznej kontrolowanej ze szczególnym uwzględnieniem aspektów technicznych i organizacyjno-prawnych. Podjęta tematyka jest rezultatem analizy i syntetycznej oceny problematyki eksploatacji SBSP w strukturach militarnych oraz doświadczeń w tej dziedzinie, zdobytych podczas służby w rejonach konfliktów zbrojnych oraz w systemie dowodzenia RP i NATO.
Dostawca treści:
Biblioteka Nauki
Książka
Tytuł:
Investigating the content of microplastics and other extraneous particles in Polish bottled water
Autorzy:
Aleksander-Kwaterczak, Urszula
Gaj, Dominika
Stelmach, Alex
Wróbel, Tomasz P.
Powiązania:
https://bibliotekanauki.pl/articles/27310134.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
plastic bottles
drinking water
solid particles
polymers
microplastics
FT-IR spectroscopy
Opis:
Bottled water has enjoyed a global increase in popularity since it is generally perceived to be superior in quality to tap water and necessary when tap water is non-potable. As a result, ensuring that it meets the requisite quality standards is of vital importance. This work aims to examine the content of solid particles, including microplastics, in bottled water available in Polish stores. The second aspect is the preliminary determination of the influence of the water gassing process, together with thermal and light factors, on the content of particles in the water. The number of particles was counted by colour and shape, with the number ranging from 87 to 188 per litre of water; on average, there were 136 ±32 particles per litre of water, demonstrating that water from disposable plastic bottles is contaminated with various substances. The difference in the number of particles may be due to the origin of the waters, the processes they were subjected to prior to bottling, the properties of the bottles as packaging, and the conditions and length of storage and transport. Additional Fourier-transform infrared spectroscopy (FT-IR) analysis confirmed that about 75% of the particles were polymers, and 50% of them were plastics. Particularly alarming is the fact that the bottled waters mostly contained microplastic particles (MP) of smaller sizes, the kind which is recognized as being the most dangerous to human health. In the study, most particles were in the form of irregular shapes, which may indicate that they come from the destruction of waste or plastic products. This is also indicated by the domination of colourless particles. More particles were found in waters exposed to high and low temperatures than in waters stored at room temperature, potentially indicating that storage conditions for drinking water are important. Taking into account the results obtained, increasing attention should be paid to the health risks posed by such microplastics and there is a clear need to introduce legal regulations on the matter. The lack of any legal guidelines or unified standards in the field of MP research means that the results are not always representative, and it also makes it difficult to compare the results from different studies.
Źródło:
Geology, Geophysics and Environment; 2023, 49, 4; 335--353
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The involvement of Na+/K+-ATPase in the development of platelet procoagulant response
Autorzy:
Tomasiak, Marian
Stelmach, Halina
Rusak, Tomasz
Ciborowski, Michał
Radziwon, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1041052.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cardiac glycosides
ouabain
Na+/K+-ATPase
atrial fibrillation
platelets
procoagulant activity
Opis:
In circulation, platelets may come into contact with both exogenous (cardiac glycoside treatment) and endogenously produced inhibitors of Na+/K+-ATPase. We examined whether blocking of platelet Na+/K+-ATPase by ouabain results in generation of procoagulant activity. It was shown that an in vitro treatment of platelets with ouabain (20-200 µM for 20 to 60 min) is associated with an intracellular accumulation of sodium ([Na+]i), generation of a weak calcium signal, and expression of procoagulant activity. The ouabain-induced procoagulant response was dose- and time-related, less pronounced than that evoked by collagen and similar to that produced by gramicidin, not affected by EDTA or aspirin, and strongly reduced in the absence of extracellular Na+ or by hyperosmolality. Flow cytometry studies revealed that ouabain treatment results in a unimodal left shift in the forward and side scatter of the entire platelet population indicating morphological changes of the plasma membrane. The shift was dose related, weaker than that evoked by collagen and similar to that produced by gramicidin. Ouabain-treated platelets express phosphatidylserine (PS). The ouabain-evoked PS expression was dose- and time-dependent, weaker than that produced by collagen and similar to that evoked by gramicidin. Electronic cell sizing measurements showed a dose-dependent increase in mean platelet volume upon treatment with ouabain. Hypoosmotically-evoked platelet swelling resulted in the appearance of procoagulant activity. Thromboelastography measurements indicate that, in whole blood, nanomolar (50-1000 nM, 15 min) concentrations of ouabain significantly accelerate the rate of clot formation initiated by contact and high extracellular concentration of calcium. We conclude that inefficiently operating platelet Na+/K+-ATPase results in a rise in [Na+]i. An increase in [Na+]i and the swelling associated with it may produce PS exposure and a rise in membrane curvature leading to the generation of a procoagulant activity.
Źródło:
Acta Biochimica Polonica; 2007, 54, 3; 625-639
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
THE INFLUENCE OF SELECTED FACTORS ON OXYGEN EFFICIENCY
Autorzy:
Pasiak, Wojciech
Stelmach, Anna
Pasiak, Przemysław
Weber, Dorota
Bańbuła, Marek
Zubliewicz, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/449156.pdf
Data publikacji:
2018-10-11
Wydawca:
Politechnika Opolska. Wydział Wychowania Fizycznego i Fizjoterapii
Tematy:
oxygen efficiency, physiotherapy, Harvard step test, physical activity, lifestyle
Opis:
Oxygen (aerobic) efficiency is one of the most important determinants of our physical ability, which in turn is the most significant aspect of the human body. Physical activity is very often connected with health and life long health care. The purpose of this article is to show how aerobic efficiency is affected by different lifestyles and predilections among groups selected by the researcher. This will enable the determination of those factors that influence oxygen efficiency. Purpose. The purpose of this research is to establish how aerobic efficiency, being the most important determinant of physical activity, presents in the chosen groups of respondents and how it is affected by various factors. Materials and methods. 30 respondents between the ages of 18 and 24 who study or work took part in the research. All of them claimed to pursue regular physical activity. Based on the interview with the respondents several subgroups were indicated: males, females, smokers, non-smokers, consumers of alcohol and non-drinkers.Results. Research conducted for the purpose of this manuscript enabled the evaluation of how oxygen efficiency presented in the different groups selected for the purpose of this study. Respondents who took part in the research varied based on gender and use of stimulants: Cigarettes reduce the Fitness Index (FI) rate. Males have a better FI rate than females. Alcohol does not reduce the FI rate. Those who smoke cigarettes have a lower oxygen efficiency rate then those drinking alcohol.
Źródło:
Journal of Physical Education & Health - Social Perspective; 2018, 7, 11; 51-60
2084-7971
Pojawia się w:
Journal of Physical Education & Health - Social Perspective
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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