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Wyświetlanie 1-50 z 2010
Tytuł:
George P. H. Styan - a celebration
Autorzy:
Coelho, Carlos
Powiązania:
https://bibliotekanauki.pl/articles/729852.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
Cochran's theorem
distribution
linear algebra
quadratic forms
Schur complements
Opis:
The first time I met George Styan was in July 2004 in Lisbon when he was on his way to the 11th ILAS Conference in Coimbra.
But George had already been in Portugal before and I learned how much he was fond of Conventual, a very fine and nice old style restaurant in Lisbon. Then I also learned that George really is an appreciator of good food and a very well-educated wine drinker. With this detail in common it was really easy to become a good friend with George.
Since then we met a number of times, the most significant of which was at the time of the 17th IWMS held in Tomar, Portugal, in 2008.
Before this event, during a short stay of George and Evelyn in Lisbon, we had the opportunity to go to some nice spots like Sintra and to hang around a few nice places near Lisbon and even to attend a Leonard Cohen concert, together with some friends.
Actually, even more than good food and a good wine, and more than a good mathematical challenge, George enjoys the company of his family and his friends. We may even say that more than Mathematics, it is his family and his friends that play and have always played a central role in his life. Everybody knows well how much he cares about Evelyn, the great woman behind the great man, and also everybody knows the looks in George's face when he meets the ones he cares about.
Inevitably, besides addressing some of George's honors and also his scientific work and his interest in mathematics related stamps, it is based on a number of pictures, either taken by the author or by other friends and a couple of them even taken by George himself, that this little contribution to the celebration of George Styan's 75th birthday will be indeed more a celebration of the way George enjoys and nurtures the company of the ones he loves.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2013, 33, 1-2; 7-40
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endothelial NADH/NADPH-dependent enzymatic sources of superoxide production: relationship to endothelial dysfunction.
Autorzy:
Kalinowski, Leszek
Malinski, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/1043282.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
peroxynitrite
endothelial dysfunction
NAD(P)H oxidase
nitric oxide
superoxide
eNOS
Opis:
There is growing evidence that endothelial dysfunction, which is often defined as the decreased endothelial-derived nitric oxide (NO) bioavailability, is a crucial factor leading to vascular disease states such as hypertension, diabetes, atherosclerosis, heart failure and cigarette smoking. This is due to the fact that the lack of NO in endothelium-dependent vascular disorders contributes to impaired vascular relaxation, platelet aggregation, increased vascular smooth muscle proliferation, and enhanced leukocyte adhesion to the endothelium. During the last several years, it has become clear that reduction of NO bioavailability in the endothelium-impaired function disorders is associated with an increase in endothelial production of superoxide (O2̇̄). Because O2̇̄ rapidly scavenges NO within the endothelium, a reduction of bioactive NO might occur despite an increased NO generation. Among many enzymatic systems that are capable of producing O2̇̄, NAD(P)H oxidase and uncoupled endothelial NO synthase (eNOS) apparently are the main sources of O2̇̄ in the endothelial cells. It seems that O2̇̄ generated by NAD(P)H oxidase may trigger eNOS uncoupling and contribute to the endothelial balance between NO and O2̇̄. That is maintained at diverse levels.
Źródło:
Acta Biochimica Polonica; 2004, 51, 2; 459-469
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metformin reduces NAD(P)H oxidase activity in mouse cultured podocytes through purinergic dependent mechanism by increasing extracellular ATP concentration
Autorzy:
Piwkowska, Agnieszka
Rogacka, Dorota
Jankowski, Maciej
Angielski, Stefan
Powiązania:
https://bibliotekanauki.pl/articles/1039452.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
AMP-activated kinase
free radicals
metformin
NAD(P)H oxidase
podocytes
purinoceptors
Opis:
Hyperglycemia affects the functioning numbers of podocytes and leads to a gradual decline of renal function. The normalization of glucose level is a principle therapeutic goal in diabetic patients and metformin is a popular hypoglycemic drug used in type 2 diabetes mellitus. Metformin activates AMP-activated kinase (AMPK) and decreases NAD(P)H oxidase activity in podocytes leading to reduction of free radical generation. Similar effects are observed after activation of P2 receptors. Therefore, we investigated whether metformin increases extracellular ATP concentration and affects the activities of NAD(P)H oxidase and AMPK through P2 receptors. Experiments were performed on cultured mouse podocytes. NAD(P)H oxidase activity was measured by chemiluminescence and changes in AMPK activity were estimated by immunoblotting against AMPKα-Thr172-P. Metformin increased extracellular ATP concentration by reduction of ecto-ATPase activity, decreased NAD(P)H oxidase activity and increased AMPK phosphorylation. A P2 receptor antagonist, suramin (300 µM), prevented metformin action on NAD(P)H oxidase and AMPK phosphorylation. The data suggests a novel mechanism of metformin action, at least in podocytes. Metformin, which increases extracellular ATP concentration leads to activation of P2 receptors and consequent modulation of the podocytes' metabolism through AMPK and NAD(P)H oxidase which, in turn, may affect podocyte functioning.
Źródło:
Acta Biochimica Polonica; 2013, 60, 4; 607-612
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
$H^p$ Sobolev spaces
Autorzy:
Strichartz, Robert S.
Powiązania:
https://bibliotekanauki.pl/articles/722630.pdf
Data publikacji:
1990
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:
Colloquium Mathematicum; 1990, 60-61, 1; 129-139
0010-1354
Pojawia się w:
Colloquium Mathematicum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of NAD(P)H:quinone oxidoreductase (NQO1) in apoptosis induction by aziridinylbenzoquinones RH1 and MeDZQ
Autorzy:
Nemeikaitė-Čėnienė, Aušra
Dringelienė, Aldona
Šarlauskas, Jonas
Čėnas, Narimantas
Powiązania:
https://bibliotekanauki.pl/articles/1041349.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
non-cross resistant antitumour benzoperimidines and anthrapyridones
ATP-dependent efflux
erythrocytes
multidrug resistance
energy state
Opis:
We aimed to characterize the role of NAD(P)H:quinone oxidoreductase (NQO1) in apoptosis induction by antitumour quinones RH1 (2,5-diaziridinyl-3-hydroxymethyl-6-methyl-1,4-benzoquinone) and MeDZQ (2,5-dimethyl-3,6-diaziridinyl-1,4-benzoquinone). Digitonin-permeabilized FLK cells catalyzed NADPH-dependent single- and two-electron reduction of RH1 and MeDZQ. At equitoxic concentrations, RH1 and MeDZQ induced apoptosis more efficiently than the nonalkylating duroquinone or H2O2. The antioxidant N,N'-diphenyl-p-phenylene diamine, desferrioxamine, and the inhibitor of NQO1 dicumarol, protected against apoptosis induction by all compounds investigated, but to a different extent. The results of multiparameter regression analysis indicate that RH1 and MeDZQ most likely induce apoptosis via NQO1-linked formation of alkylating species but not via NQO1-linked redox cycling.
Źródło:
Acta Biochimica Polonica; 2005, 52, 4; 937-942
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollen tube NAD(P)H oxidases modify specific cell wall components to maintain cellular integrity during polarized cell growth
Autorzy:
Lassig, R.
Romeis, T.
Powiązania:
https://bibliotekanauki.pl/articles/81096.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
reactive oxygen species
NADPH oxidase
cell wall
abiotic stress
cellular integrity
Arabidopsis thaliana
pollen tube
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Two-electron reduction of nitroaromatic compounds by Enterobacter cloacae NAD(P)H nitroreductase: Description of quantitative structure-activity relationships.
Autorzy:
Nivinskas, Henrikas
Koder, Ronald
Anusevièius, Žilvinas
Šarlauskas, Jonas
Miller, Anne-Frances
Čenas, Narimantas
Powiązania:
https://bibliotekanauki.pl/articles/1044214.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
HMX
nitroreductase
explosive
TNT
electron transfer
tetryl
RDX
pentryl
Opis:
Enterobacter cloacae NAD(P)H:nitroreductase catalyzes the reduction of a series of nitroaromatic compounds with steady-state bimolecular rate constants (kcat/Km) ranging from 104 M-1s-1 to 107 M-1s-1 , and oxidizing 2 moles NADH per mole mononitrocompound. Oxidation of excess NADH by polynitrobenzenes including explosives 2,4,6-trinitrotoluene (TNT) and 2,4,6-trinitrophenyl-N-methylnitramine (tetryl), has been observed as a slower secondary process, accompanied by O2 consumption. This type of 'redox cycling' was not related to reactions of nitroaromatic anion-radicals, but was caused by the autoxidation of relatively stable reaction products. The logs kcat/Km of all the compounds examined exhibited parabolic dependence on their enthalpies of single-electron- or two-electron (hydride) reduction, obtained by quantum mechanical calculations. This type of quantitative structure-activity relationships shows that the reactivity of nitroaromatics towards E. cloacae nitroreductase depends mainly on their hydride accepting properties, but not on their particular structure, and does not exclude the possibility of multistep hydride transfer.
Źródło:
Acta Biochimica Polonica; 2000, 47, 4; 941-949
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sulforaphane-mediated induction of a phase 2 detoxifying enzyme NAD(P)H:quinone reductase and apoptosis in human lymphoblastoid cells.
Autorzy:
Misiewicz, Irena
Skupińska, Katarzyna
Kowalska, Elżbieta
Lubiński, Jan
Kasprzycka-Guttman, Teresa
Powiązania:
https://bibliotekanauki.pl/articles/1041549.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cancer chemoprevention
sulforaphane
lymphoblastoid cells
Opis:
The effect of sulforaphane on human lymphoblastoid cells originating from a patient of a high cancer risk was studied. Sulforaphane (SFN) is a naturally occurring substance of chemopreventive activity. In our study, changes in cell growth, induction of apoptosis and phase 2 enzymes as well as glutathione level were examined. Apoptosis was tested by confocal microscopy at three stages: change in mitochondrial membrane potential, caspase activation and phosphatidylserine externalization. We show that SFN increases the activity of the detoxification system: it increases quinone reductase activity at low concentration (0.5-1 μM) and raises glutathione level in a dose-dependent manner. At higher doses (2.5-10 μM) sulforaphane is a cell growth modulator, as it caused cell growth cessation (IC50 = 3.875 μM), and apoptosis inducer. The results obtained suggest that sulforaphane acts as a chemopreventive agent in human lymphoblastoid cells.
Źródło:
Acta Biochimica Polonica; 2004, 51, 3; 711-721
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traité de droit français des religions, dir. F. Messner, P. H. Prélot, J. M. Woehrling I.Riassetto, Paris 2003, ss. 1317
Autorzy:
Orzeszyna, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1871169.pdf
Data publikacji:
2019-11-14
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Źródło:
Roczniki Nauk Prawnych; 2005, 15, 2; 355-356
1507-7896
2544-5227
Pojawia się w:
Roczniki Nauk Prawnych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Schmitt, N., & Rodgers, M. P. H. (Eds.) An Introduction to Applied Linguistics (3rd ed.) Routledge, Taylor & Francis. 2020. 404 pp.
Autorzy:
Aziz, Muhammad Fahruddin
Jayaputri, Herlandri Eka
Powiązania:
https://bibliotekanauki.pl/articles/22446722.pdf
Data publikacji:
2023
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Opis:
-
Źródło:
Theory and Practice of Second Language Acquisition; 2023, 9, 1; 1-5
2450-5455
2451-2125
Pojawia się w:
Theory and Practice of Second Language Acquisition
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Z DZIEJÓW LICEUM OGÓLNOKSZTAŁCĄCEGO IM. KAZIMIERZA WIELKIEGO W ŁĘCZYCY. ŁĘCZYCA 2006, SS. 356. WYDAWCA P.P.-H. "DRUKARNIA" SP. Z 00. SIERPC
Autorzy:
Solarski, Bolesław
Powiązania:
https://bibliotekanauki.pl/articles/964765.pdf
Data publikacji:
2006
Wydawca:
Towarzystwo Naukowe Płockie
Źródło:
Notatki Płockie. Kwartalnik Towarzystwa Naukowego Płockiego; 2006, 51, 4 (209)
0029-389X
Pojawia się w:
Notatki Płockie. Kwartalnik Towarzystwa Naukowego Płockiego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On weighed $H^{p}$ spaces
Autorzy:
Walsh, T.
Powiązania:
https://bibliotekanauki.pl/articles/1386309.pdf
Data publikacji:
1971
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:
Studia Mathematica; 1971, 40, 2; 109-159
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anna Maria Wrzesińska, "Ruch oporu ZWZ-AK w obwodzie Gąbin", P.P.-H, "Drukarnia" Sp. z o.o., Sierpc 2010, ss. 328
Autorzy:
Szczepański, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/964723.pdf
Data publikacji:
2011
Wydawca:
Towarzystwo Naukowe Płockie
Źródło:
Notatki Płockie. Kwartalnik Towarzystwa Naukowego Płockiego; 2011, 56, 1 (226)
0029-389X
Pojawia się w:
Notatki Płockie. Kwartalnik Towarzystwa Naukowego Płockiego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiplier transformations on $H^{p}$ spaces
Autorzy:
Chen, Daning
Fan, Dashan
Powiązania:
https://bibliotekanauki.pl/articles/1217913.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
The authors obtain some multiplier theorems on $H^p$ spaces analogous to the classical $L^p$ multiplier theorems of de Leeuw. The main result is that a multiplier operator $(Tf)^(x) = λ(x)f̂(x)$ $(λ ∈ C(ℝ^n))$ is bounded on $H^p(ℝ^n)$ if and only if the restriction ${λ(εm)}_{m∈Λ}$ is an $H^p(T^n)$ bounded multiplier uniformly for ε>0, where Λ is the integer lattice in $ℝ^n$.
Źródło:
Studia Mathematica; 1998, 131, 2; 189-204
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reguły konwersacji H.P. Gricea: pragmatyka czy semantyka?
H.P. Grices conversational rules: pragmatics or semantics?
Autorzy:
Kiklewicz, Aleksander
Powiązania:
https://bibliotekanauki.pl/articles/568004.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Mikołaja Kopernika w Toruniu. Wydawnictwo UMK
Tematy:
Theory of language
language pragmatics
semantics
conversation rules
conversational implicature
metaphor
Opis:
The subject of the paper is the interaction of the functional aspects of language, i.e. of semantics and pragmatics. The author assumes that the interdependence of semantics and pragmatics determines the fuzzy border of these basic language categories. This fact is reflected in the research practices: the pragmatic phenomena are described in terms of semantics and, conversely, the semantic phenomena are described in terms of pragmatics. Additionally, substitution of terms, i.e. interpretation of semantic phenomena in the pragmatic field is also possible. As an example of this type of manipulation the concept of H.P. Grice's conversational rules is considered in more detail.
Źródło:
Linguistica Copernicana; 2011, 2(6); 25-38
2080-1068
2391-7768
Pojawia się w:
Linguistica Copernicana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petroleum Provinces in Poland
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/2066019.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ropa naftowa
zagłębie
Polska
petroleum provinces
basin analysis
petroleum play
Polska
Opis:
The scheme in which the Carpathians, Carpathian Foredeep and Polish Lowland are distinguished as the hydrocarbon prospective zones was used hitherto in Poland. Good geological diagnosis of Poland area enables to distinguish the petroleum provinces in terms of basin analysis (methodology). This procedure are based on an integration of multidisciplinary geological and geophysical data with into a petroleum play concept. Results of drillings and petroleum play procedures allow to predict boundaries of petroleum provinces. Effects of basin analysis with regards to the stratigraphy of hydrocarbon-bearing areas are presented in Figure 1. All these prospective areas (Fig. 1) have been matched into five independent units (Fig. 2) which could be defined as following petroleum provinces: Pomerania, Wielkopolska, Ma3opolska, Lublin and Gdansk. These petroleum provinces are only the parts of sedimentary basins the individual development of which enabled generation, migration and preservation of hydrocarbons. Location of the above mentioned petroleum provinces is also brightly reflected on the map of crustal consolidation (Fig. 3): every province in Poland has its own individual geologic history.
Źródło:
Przegląd Geologiczny; 2007, 55, 12/1; 1061-1067
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geneza i ewolucja polskiego basenu czerwonego spągowca
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/1204877.pdf
Data publikacji:
1999
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
polski basen
czerwony spągowiec
analiza basenów sedymentacyjnych
stratygrafia
paleogeografia
system naftowy
Polish Basin
Rotliegend
basin analysis
stratigraphy
palaeogeography
petroleum play
Opis:
Polski basen czerwonego spągowca (PBCS) jest częścią wielkiego basenu sedymentacyjnego zwanego południowym basenem permskim, leżącym w zachodniej i centralnej Europie. Historia rozwoju polskiego basenu czerwonego spągowca rozpoczęła się na przełomie karbonu i permu. Jednak w jego rozwoju można odnaleźć pewne elementy zakorzenione w już przedpermskim paleozoiku. Rozwój sedymentacji w polskim basenie czerwonego spągowca był kontrolowany głównie przez tektonikę i klimat. Wyraźna zmiana klimatyczna, z warunków wilgotnych na suche, nastąpiła dopiero w górnym czerwonym spągowcu (i to nie w jego najniższej części). Ruchy tektoniczne zaznaczały się natomiast poprzez tworzenie miąższych kompleksów zlepieńców. Takie spojrzenie na opracowywaną sukcesję osadów czerwonego spągowca umożliwiło wyróżnienie kilku sekwencji. Ewolucja polskiego basenu czerwonego spągowca nie skończyła się wraz z transgresją cechsztyńską. Wypełnienie PBCS podlegało dalszej ewolucji związanej z rozwojem polskiego basenu permsko-mezozoicznego. Aby móc śledzić ewolucję wypełnienia PBCS wykonano dla tego obszaru analizę historii pogrążania i analizę historii termicznej. Historia subsydencji basenu polskiego na omawianym obszarze pokazuje, że okres późnego permu i triasu były główna fazę ryftowania, a późniejszy rozwój basenu wynika głównie z relaksacji termicznej. Analizując historię termiczną basenu polskiego widać, że w czerwonym spągowcu występowały tam wielkie anomalie geotermiczne. Anomalie te charakteryzowały się wysoką wartością strumienia cieplnego (100-150 mWm-2) w czasie późnego permu i triasu. Tak wysokie wartości odpowiadają przeważnie synryftowemu etapowi rozwoju basenu. W czasie późnego triasu i jury wystąpiło pewne schłodzenie pola cieplnego, ale punktem zwrotnym w historii termicznej basenu polskiego było pogranicze jury i kredy, kiedy południowo-zachodnia część omawianego basenu została znacznie wyniesiona i zerodowana. Wtedy to wartość powierzchniowego strumienia cieplnego w południowo-zachodniej Polsce istotnie zmalała, a wyraźne cechy termiczne poprzedniej epoki zostały zatarte. Występowanie złóż gazu w osadach czerwonego spągowca ograniczone jest do najwyższej części sekwencji osadowej. Skład gazu ziemnego wykazuje niekiedy znaczne zaazotowanie oraz istotne wzbogacenie w hel. Najwyższe koncentracje helu w gazie ziemnym, tak pod względem objętościowym jak i ilościowym, są zlokalizowane w tym samym miejscu, co permsko-jurajska wysoka anomalia geotermiczna i jednocześnie tutaj najpłycej występuje powierzchnia Moho w Polsce. Wyniki analizy historii pogrążenia i historii termicznej analizowanej części basenu polskiego, jak również konfiguracja powierzchni Moho i związane z nią anomalie paleogeotermiczne oraz wysokie koncentracje helu wskazują na asymetryczny model budowy basenu. Strefa wysokich anomalii paleogeotermicznych, rozciągająca się od obszaru między Wrocławiem i Poznaniem i dalej na zachód, była zapewne głównym obszarem ryftowania. Pierwszym etapem rozwoju polskiego basenu ryftowego był wulkanizm, a następnie sedymentacja w czasie czerwonego spągowca.
Źródło:
Polish Geological Institute Special Papers; 1999, 3; 1-93
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regionalizacja tektoniczna Polski-Niż Polski
Tectonic subdivision of Poland: Polish Lowlands
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/2074565.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
regionalizacja tektoniczna
geologia regionalna
Polska
Niż Polski
niecka Polska
tektonika
podłoże
regional subdivision
regional geology
Polska
Polish Lowlands
Polish Basin
tectonics
basement
Opis:
Presented paper is a contribution to discussion about the tectonic regionalization in Poland. The Polish Lowlands, located between the Baltic shore and the highlands of the southern and central Poland, is the area discussed here. In this region mainly the Quaternary and the Neogene deposits with thickness rarely over 300 m are exposed. On the sub-Cenozoic surface occur mainly Cretaceous, Jurassic and Triassic rocks. Structural forms of the Polish Lowlands are directly associated with the Permian-Mesozoic Polish Basin inverted at the beginning of Cenozoic time. It is worthwhile indicating here that not only the Polish Trough was inverted but also the distal part of this basin, distinguished now as the Fore-Sudetic Monocline. Subdivision of the Polish Lowlands into tectonic units on the sub-Cenozoic surface was shown on Fig. 1. In the mid-Polish area antyclinorium belts of north-west to south-east orientation are located. The basement of the Polish Basin is built of the pre-Permian deposits, tectonized during pre-Alpine phases. To analyze the geology of Poland in the sub-Permian architecture the proper tectonic map (Fig. 2) is required with only the units of first order marked. Debate on tectonics of Poland requires also a map of basement consolidation units (Fig. 3). Indispensable completion of the presented maps is a geological cross-section of the Polish Lowlands (Fig. 4). It is clear that tectonic regionalization of Poland (with special attention to the Polish Lowlands) should be demonstrated on the three basic maps here presented. Spatial (both horizontal and vertical) relations between tectonic units should be considered in the light of sedimentary basin analysis, i.e., searching processes and stages of the structural evolution which essentially contributed to the recent tectonic diversification in regional geology.
Źródło:
Przegląd Geologiczny; 2008, 56, 10; 895-903
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduction of nitroaromatic compounds by NAD(P)H:quinone oxidoreductase (NQO1): the role of electron-accepting potency and structural parameters in the substrate specificity
Autorzy:
Misevičienė, Lina
Anusevičius, Žilvinas
Šarlauskas, Jonas
Čėnas, Narimantas
Powiązania:
https://bibliotekanauki.pl/articles/1041217.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
reduction potential
DT-diaphorase
nitroaromatic compounds
reduction mechanism
explosives
Opis:
We aimed to elucidate the role of electronic and structural parameters of nitroaromatic compounds in their two-electron reduction by NAD(P)H:quinone oxidoreductase (NQO1, DT-diaphorase, EC 1.6.99.2). The multiparameter regression analysis shows that the reactivity of nitroaromatic compounds (n = 38) increases with an increase in their single-electron reduction potential and the torsion angle between nitrogroup(s) and the aromatic ring. The binding efficiency of nitroaromatics in the active center of NQO1 exerted a less evident role in their reactivity. The reduction of nitroaromatics is characterized by more positive entropies of activation than the reduction of quinones. This points to a less efficient electronic coupling of nitroaromatics with the reduced isoalloxazine ring of FAD, and may explain their lower reactivity as compared to quinones. Another important but poorly understood factor enhancing the reactivity of nitroaromatics is their ability to bind at the dicumarol/quinone binding site in the active center of NQO1.
Źródło:
Acta Biochimica Polonica; 2006, 53, 3; 569-576
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Le chronotope dans les récits de H. P. Lovecraft
Chronotope in the stories of H.P. Lovecraft
Autorzy:
Gadomska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1052956.pdf
Data publikacji:
2004-12-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Opis:
The name of Jean Schlumberger. the founding member of «Nouvelle Revue Française», which appears at times in Marcel Proust's letters, illustrates well the possibilities that the writer's correspondence opens up for a researcher, who wants to recreate his line of reasoning and creative process. Jean Schlumberger and his cousin Gustave at first seem to appear in literary circles known to Proust as quite negative figures, whose views on almost every subject he did not share. Gradually, however, the author of La Recherche revises his stance and as a result of his contact with Schlumberger he rewrites different fragments of his novel cycle, especially one episode of Sodome et Gomorrhe and some theoretical passage of Temps retrouvé. Only the reference to the letters enables us to perceive the mysterious way leading from sociological surface to the depth of creative process.
Źródło:
Studia Romanica Posnaniensia; 2004, 31; 35-48
0137-2475
2084-4158
Pojawia się w:
Studia Romanica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Responses of immune sheep to challenge and the peripaturient egg rise
Odpowiedź uodpornionych owiec na challenge i okołoporodowy wzrost jajeczkowania
Autorzy:
Holmes, P.H.
Powiązania:
https://bibliotekanauki.pl/articles/2152094.pdf
Data publikacji:
1993
Wydawca:
Polskie Towarzystwo Parazytologiczne
Źródło:
Wiadomości Parazytologiczne; 1993, 39, 1; 75-78
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New challenges in dynamical systems: the networked case
Autorzy:
Bauer, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/907913.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
kontrola przeciążeń
sieć komputerowa
sieć sensorowa
synchronizacja
networked systems
sensor networks
swarms
congestion control
synchronization
Opis:
This paper describes new technical challenges that arise from networking dynamical systems. In particular, the paper takes a look at the underlying phenomena and the resulting modeling problems that arise in such systems. Special emphasis is placed on the problem of synchronization, since this problem has not received as much attention in the literature as the phenomena of packet drop, delays, etc. The paper then discusses challenges arising in prominent areas such as congestion control, sensor networks, as well as vehicle networks and swarms.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2008, 18, 3; 271-277
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kolekcja hagiograficzna Piotra Hiacynta Pruszcza Forteca duchowna Królestwa Polskiego z XVII wieku
Piotr Hiacynt Pruszczs Hagiographic Collection The Spiritual Fortress of the Polish Kingdom from 17th Century
Autorzy:
Binko, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1953892.pdf
Data publikacji:
2004
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
P. H. Pruszcz
M. Baroniusz
Forteca duchowna
katalog świętych
reforma katolicka
antemurale
hagiografia
sarmatyzm
The Spiritual Fortress
catalogue of saints
Catholic reform
hagiography
Sarmatism
Opis:
The work by Piotr Hiacynt Pruszcz, Forteca duchowna (The Spiritual Fortress) published in 1662 perfectly well fits the 17th century current of hagiographic literature. The religious revival started by the Council of Trent (1545-1563) undoubtedly influenced development of that particular literary genre. It was connected with enlivening the cult of the saints, especially local and national ones, and it was an attempt to adjust the saints to the needs of the universal Church. The Spiritual Fortress is a work that fully responds to the needs of the society of that time. Despite the fact that lots of lives and catalogues of saints were written at that time, Pruszcz's work distinguishes itself from other Polish works describing the lives of the saints by the fact that it is devoted only to Polish saints or ones who were closely connected with Poland. It was the first catalogue of Polish saints that was so comprehensive. It was Pruszcz's intention to show Poland as the fatherland of saints, as an exceptional place, chosen by God. At the same time the title of the work suggests that Poland had a mission as antemurale of Christianity, the foundation supporting the Church and Europe. Hence The Fortress is a result and an expression of the Sarmatian ideology, and at the same time an attempt to adjust to the tasks set by the post-Trent Church to hagiography. Pruszcz's catalogue is a continuation of the literary genre that existed from the beginning of Christianity; it fulfills the same functions that hagiography had from its beginning. The Spiritual Fortress is still an attempt to record particular people's sanctity, and at the same time it is a work that supplies the reader with very clear and definite ways to carry sanctity into effect and with models to be imitated.
Źródło:
Roczniki Humanistyczne; 2004, 52, 2; 107-121
0035-7707
Pojawia się w:
Roczniki Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Permian Basin as a main exploration target in Poland
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/2066015.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
polskie zagłębie permiańskie
pola naftowe i gazowe
ropa naftowa
Polish Permian Basin
oil and gas fields
petroleum play
Opis:
The Polish Permian Basin (PPB) is a part of the Southern Permian Basin in theWestern and the Central Europe. Results of burial and thermal analyses as well as a configuration of the Moho surface of the Polish Basin suggest the asymmetrical basin model. History of the Polish Basin reveals that the Late Permian and the Early Triassic periods represent the main rifting phase and its later development resulted from thermal relaxation. During the Late Triassic and the Jurassic time some cooling of rift heat field took place, but the turning point in thermal evolution of the Polish Basin was at the Jurassic/Cretaceous boundary when the south-western part of the Polish Basin was uplifted and intensively eroded. The knowledge on the Permian Basin in Poland is chiefly connected with petroleum exploration. The gas fields are located mainly in the Rotliegend reservoirs. The Zechstein deposits, overlying the Rotliegend, are also in the area of economic interest: hydrocarbons occurring in carbonate deposits of the Werra (Zechstein Limestone - Ca1 ) and Stassfurt (Main Dolomite - Ca2) cyclothems. Several tens gas fields have been hitherto discovered within the Rotliegend sandstones and the Zechstein limestones. Reservoirs are the clastic, terrestrial deposits of the Lower Permian and calcareous, biogenic carbonates of the Zechstein. Evaporates, mainly salts of the Werra cyclothem, are the regional sealing for the mentioned reservoirs. Natural gas accumulated in the Rotliegend sandstones and the Zechstein limestones is of the same origin: it was generated from organic matter occurred in the Carboniferous rocks and it migrated to higher places where it became concentrated within favourable structural or lithofacies conditions. High nitrogen content in the natural gas from the Polish Permian Basin is explained that nitrogen is generated from an organic matter within a sedimentary basin at higher temperatures than methane. Location of high helium concentration corresponds to the area of highest heat flow during the Late Permian, Triassic and Jurassic times, evidencing the Late Permian-Early Mesozoic rifting process. Numerous oil gas fields discovered in the Main Dolomite (Ca2) unit constitute it as one of the most important exploration target in the Polish Basin. It composes the closed hydrodynamic system sealed from the top and the bottom by evaporates. Both the source rocks and reservoirs are characteristic for this unit. Influence of the burial and thermal history of the Polish Basin on a petroleum play generation within the Main Dolomite unit is clearly visible. The previous and the present petroleum discoveries in the Polish Permian Basin, comparing to the other petroleum provinces in Poland, indicate it as a main exploration target.
Źródło:
Przegląd Geologiczny; 2007, 55, 12/1; 1003-1015
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budowa geologiczna oraz geneza i ewolucja bloku Gorzowa
Geology, origin and evolution of the Gorzów Block
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/2074804.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
geologia regionalna
basen polski
Polska
geologia naftowa
tektonika
regional geology
Polish Basin
NW Poland
petroleum geology
tectonics
Opis:
From the beginning of geological investigations of the Polish Lowlands both the geological and the regional tectonic units were used simultaneously. The Szczecin-Gorzów Synclinorium should be distinguished in terms of tectono-structural rules. The Gorzów Block - as a geological unit - is defined on the basis of extent and differentiation of the Upper Cretaceous thickness or by distribution of local structures (mainly halotectonic and halokinetic ones) developed in the Zechstein-Mesozoic complex. Basement in the Gorzów Block area is uplifted in its consolidated part and also the top of Moho is elevated. Both uplifts are well correlated with the Permian-Mesozoic palaeogeothermal anomaly. The Gorzów Block incorporates also the north-western part of Wolsztyn Ridge which was active during the Permian-Mesozoic time. In the early Rotliegend time this area was characterized by volcanic activity. In the late Rotliegend it was a source for clastics deposited around the Wolsztyn Ridge. Also the carbonate platform facies of the Main Dolomite (Ca2) is associated with this uplifted area. The mentioned region is situated in the distal part of asymmetric, Polish rift basin. Development of basin analysis - as an interdisciplinary domain of the Earth Sciences - indicates the need of applying various geological units, adequate to the considering problem. Modern research methods in geology (computerization, GIS) enable the data bases creation for individual geological units necessary for study of their origin and evolution up to their present geological pattern.
Źródło:
Przegląd Geologiczny; 2010, 58, 8; 680-688
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A possible involvement of plasma membrane NAD(P)H oxidase in the switch mechanism of the cell death mode from apoptosis to necrosis in menadione-induced cell injury.
Autorzy:
Niemczyk, Edyta
Majczak, Anna
Hallmann, Anna
Kędzior, Jakub
Woźniak, Michał
Wakabayashi, Takashi
Powiązania:
https://bibliotekanauki.pl/articles/1041516.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
menadione
NADPH oxidase
necrosis
superoxide
apoptosis
Opis:
The effects of inhibitors of plasma membrane NADPH oxidase on menadione-induced cell injury processes were studied using human osteosarcoma 143B cells. The intracellular level of superoxide in the cells treated with menadione for 6 h reached a maximum followed by an abrupt decrease. The population of apoptotic cells detected by Annexin V and propidium iodide double staining also reached its maximum at 6 h of menadione-treatment while that of necrotic cells increased continuously reaching 90% of the total population at 9 h of the treatment. Pretreatment of the cells with inhibitors of NADPH oxidase, including diphenyliodonium chloride, apocynin, N-vanillylnonanamide and staurosporine was effective in lowering the menadione-induced elevations of superoxide, and also in the suppression of the switch of the cell death mode from apoptosis to necrosis in menadione-treated cells except for the case of staurosporine. These results strongly suggest that superoxide generated by NADPH oxidase, besides that generated by the mitochondria, may contribute to the remarkable increase in the intracellular level of superoxide in the cells treated with menadione for 6 h resulting in the switch from apoptosis to necrosis, although a direct evidence of the presence of active and inactive forms of NADPH oxidase in control and menadione-treated 143B cells is lacking at present.
Źródło:
Acta Biochimica Polonica; 2004, 51, 4; 1015-1022
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
«Apocryphal nightmares». Osservazioni sul riferimento a Damascio nel racconto The Nameless City di Howard Phillips Lovecraft
«Apocryphal Nightmares». Observations on the Reference to Damascius in The Nameless City by Howard Phillips Lovecraft
Autorzy:
Napoli, Valerio
Powiązania:
https://bibliotekanauki.pl/articles/938380.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
H. P. Lovecraft
Damascius
Paradoxa
Photius
Neoplatonism
Opis:
In his tale entitled The Nameless City, Howard Phillips Lovecraft includes unspecified «paragraphs from the apocryphal nightmares of Damascius» among the «fragments» of the «cherished treasury of daemoniac lore» of the protagonist In the present essay, I suggest that there is a connection between this unusual reference and a note in the writer’s Commonplace Book, which refers to the notice by Photius (Bibl. cod. 130) on a lost work by Damascius that nowdays is generally referred to as Paradoxa and assumed to consist of a variegated collection of extraordinary stories and facts. I, therefore, delineate a general presentation of the testimony by the Byzantine Patriarch (very probably only indirectly known to Lovecraft), upon which I attempt to bring into focus the motivations that led the Providence to make the writer insert the name of Damascius in the fantastic plot of his story.
Źródło:
Peitho. Examina Antiqua; 2014, 5, 1; 213-248
2082-7539
Pojawia się w:
Peitho. Examina Antiqua
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
H.-P. Hasenfratz, Religie świata starożytnego a chrześcijaństwo
Autorzy:
Czarnecki, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/641053.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Opis:
RecenzjaHANS-PETER HASENFRATZ, RELIGIE ŚWIATA STAROŻYTNEGO A CHRZEŚCIJAŃSTWO, TŁUM. URSZULA POPRAWSKA, KRAKÓW 2006, WAM, SS. 174
Źródło:
Studia Religiologica; 2007, 40
0137-2432
2084-4077
Pojawia się w:
Studia Religiologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-50 z 2010

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