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Wyszukujesz frazę "Ciesielski, M" wg kryterium: Autor


Tytuł:
Cyclopenta[c]phenanthrene induction of CYP1A in brain of rainbow trout (Oncorhynchus mykiss)
Autorzy:
Brzuzan, P.
Woźny, M.
Łuczyński, M. K.
Góra, M.
Ciesielski, S.
Kuźmiński, H.
Powiązania:
https://bibliotekanauki.pl/articles/363272.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
benzo(a)piren
mózg
CYP1A
cyklopenta[c]fenantren
absolutna kwantyfikacja mRNA
pstrąg tęczowy
benzo(a)pyrene
brain
cyclopenta[c]phenanthrene
mRNA absolute quantification
rainbow trout
Opis:
We assessed the effects of cyclopenta[c]phenanthrene (CP[c]Ph) and benzo[a]pyrene (B[a]P; positive control) on CYP1A gene expression in brain of juvenile rainbow trout (Oncorhynchus mykiss) using the quantitative reverse transcription polymerase chain reaction (Q-RT-PCR). A group of hatchery raised rainbow trout, with an average body mass of 49.4 g and total length of 15.5 cm were given an intraperitoneal injection (10 mg*kg-1) of either CP[c]Ph or B[a]P in corn oil (2 mg*mi-1 corn oil) or corn oil alone (control). After 24 and 48 h, trout brains were collected for mRNA isolation and analysis. After 24 hours of the exposure, only B[a]P-treated rainbow trout had 10-fold higher number of CYP1A transcripts (mean = 3.63*106 transcripts*µg-1 total RNA) than control fish (3.24*105 transcripts*µg-1 total RNA; Tukey test, P<0.05). After 48 hrs, significantly higher levels of CYP1A expression (Tukey test, P<0.001) were found in either CP[c]Ph- or B[a]P- induced group (1.45*106 and 6.92*106 transcriptsźµg-1 total RNA, respectively) over a control group (mean=1.41*105 transcripts*µg-1 total RNA). The finding that CYP1A in brain tissue was inducible by CP[c]Ph, a polycyclic aromatic hydrocarbon (PAH) of different than B[a]P planar characteristics, may further validate the use of rainbow trout brain CYP1A mRNA levels as a biomarker of PAH exposure.
Źródło:
Environmental Biotechnology; 2007, 3, 1; 10-14
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Functional and biochemical characterization of Arabidopsis calcium sensor SCS a potential regulator of SnRK2 protein kinases
Autorzy:
Bucholc, M.
Goch, G.
Ciesielski, A.
Anielska-Mazur, A.
Dobrowolska, G.
Powiązania:
https://bibliotekanauki.pl/articles/80164.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
biochemical characteristics
functional characteristics
Arabidopsis
protein kinase
water deficit
calcium binding protein
phosphorylation
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:
Historyczny rozwój koncepcji aromatyczności
Historical evolution of the concept of aromaticity
Autorzy:
Ciesielski, A.
Krygowski, T. M.
Cyrański, M. K.
Powiązania:
https://bibliotekanauki.pl/articles/172203.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
aromatyczność
benzen
węglowodory benzenoidowe
delokalizacja elektronowa
aromaticity
benzene
benzenoid hydrocarbons
electron delocalization
Opis:
Aromaticity is one of the most important terms used in organic chemistry. It has been called as a “as a cornerstone of heterocyclic chemistry” or “a theoretical concept of immese practical importance”. The concept, in chemical sense, has been introduced by Friedrich August Kekulé von Stradonitz 150 ago. The paper presents the contribution to its development of many outstanding scientists: Emil Erlenmayer, Albert Ladenburg, Adolf von Baeyer, Victor Meyer, Heinrich Limpricht, Artur Hantzsch, Eugen Bamberger, Richard Willstätter, Ernest Crocker, James W. Armit, Robert Robinson, Erich Hückel, Artur Frost, Boris Musulin, Linus Pauling, Kathleen Lonsdale, Eric Clar, Haruo Hosoya, Henry Edward Armstrong, George W. Wheland, Fritz W. London, John Pople, Paul von Ragué Schleyer and others. Aromaticity is defined on the basis of four main criteria: energetic, geometric, magnetic and reactivity. Two modern definitions of the term are presented in chapter 2 (both are given in English).
Źródło:
Wiadomości Chemiczne; 2015, 69, 9-10; 789-808
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Semantic information within the BEATCA framework
Autorzy:
Ciesielski, K.
Czerski, D.
Dramiński, M.
Kłopotek, M. A.
Wierzchoń, B.
Powiązania:
https://bibliotekanauki.pl/articles/969819.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
semantic information
clustering with partial multilabel supervision
Opis:
In this paper we investigate the impact of semantic information on the quality of hierarchical, fuzzy-based clustering of a collection of textual documents. We show that via a relevant tagging of a part of the documents one can improve the quality of overall clustering, both of tagged and un-tagged documents.
Źródło:
Control and Cybernetics; 2010, 39, 2; 377-399
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An approximation of the analytical solution of the fractional Euler-Lagrange equation
Autorzy:
Ciesielski, M.
Błaszczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/122587.pdf
Data publikacji:
2013
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
fractional Euler-Lagrange equation
numerical solution
Opis:
In this paper the fractional Euler-Lagrange equation of order α ∈ (0, 1] in the finite time interval is considered. This equation is transformed to the integral form by the use of the fractional integral operators. Next, the numerical approximation of the analytical solution is presented. Finally, some examples of numerical solutions are presented.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2013, 12, 4; 23-30
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analytical solution of the dual phase lag equation describing the laser heating of thin metal film
Autorzy:
Ciesielski, M.
Powiązania:
https://bibliotekanauki.pl/articles/122626.pdf
Data publikacji:
2017
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
dual phase lag equation
laser heating process
analytical solution
Green's function method
transfer ciepła
laserowy proces ogrzewania
równanie z dwoma czasami opóźnień
metoda funkcji Greena
Opis:
Heat transfer processes occurring in the micro-domains can be described using the dual-phase lag equation (DPLE). This equation can be applied as a model of heating of the thin metal film subjected to the femtosecond laser pulse. In the paper, the 1D dual phase lag equation containing the additional internal heat source resulting from the laser pulse irradiation and supplemented by the appropriate boundary and initial conditions is considered. Appearing in this equation two lag times τq the phase lag of the heat flux) and τT (the phase lag of the temperature gradient) are taken into account. An analytical solution of this equation under the assumption that τT > τq is presented. The separation of the variables technique and the Green’s function method are used in order to find this solution. In the final part of the paper, the example of computations is presented.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 1; 33-40
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the Alternating Direction Implicit Method for numerical solution of the dual phase lag equation
Autorzy:
Ciesielski, M.
Powiązania:
https://bibliotekanauki.pl/articles/281757.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
micro-scale heat transfer
dual phase lag model
control volume method
alternating direction implicit method
numerical simulation
Opis:
The problem discussed in the paper concerns the numerical modeling of thermal processes proceeding in micro-scale described using the Dual Phase Lag Model (DPLM) in which the relaxation and thermalization time appear. The cylindrical domain of a thin metal film subjected to a strong laser pulse beam is considered. The laser action is taken into account by the introduction of an internal heat source in the energy equation. At the stage of numerical modeling, the Control Volume Method is used and adapted to resolve the hyperbolic partial differential equation. In particular, the Alternating Direction Implicit (ADI) method for DPLM is presented and discussed. The examples of computations are also presented.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 3; 839-852
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the Control Volume Method using the Voronoi polygons for numerical modeling of bio-heat transfer processes
Autorzy:
Ciesielski, M.
Mochnacki, B.
Powiązania:
https://bibliotekanauki.pl/articles/279675.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
bioheat transfer
numerical modeling
Control Volume Method
Voronoi’s diagram
Opis:
In the paper, the problem concerning the numerical modeling of thermal processes in the domain of a biological tissue being in thermal contact with the environment is discussed. The changing ambient temperature causes that the non-steady heat transfer process is con- sidered. The cross-section of the forearm (2D problem) is treated as a non-homogeneous domain in which the sub-domains of skin tissue, fat, muscle and bone are distinguished. From the mathematical point of view, the boundary-initial problem described by the system of energy equations (the Pennes equations), boundary conditions on the external surface of the system, boundary conditions on the surfaces limiting the successive sub-domains and the initial condition is analyzed. At the stage of numerical computations, the Control Volume Method using the Voronoi polygons is applied. In the final part of the paper, examples of computations are shown.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 4; 927-935
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bieganie na terenach leśnych - analiza działań Lasów Państwowych
Running in forest areas - an analysis of activities undertaken by State Forests
Autorzy:
Ciesielski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1292423.pdf
Data publikacji:
2018
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lasy
rekreacja
bieganie
biegi
trasy biegowe
spoleczne funkcje lasu
funkcje rekreacyjne
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
recreation
running events
running paths
social (non-productive) functions of forest
the State Forests in Poland
Opis:
A growing need to lead a healthy lifestyle and to spend more time in nature causes an increased pressure on forests, which renders their social functions more and more important. In order to meet people’s expectations, the State Forests undertake several actions to make forests more available to the public including the organization of running events in forests and the development of a network of recreational and running paths. In order to describe these actions, an online survey was conducted among the workers of forest districts. Additional data such as information published on the State Forests’ website, Facebook and runners’ blogs, was included in the analysis as well. 283 forest districts participated in the electronic survey. The results indicate that the State Forests actively participated in promoting running events in forests totaling 488 running events in 2014 and 779 between January and October 2017, which constitutes an increase by approximately 60%. The average number of running events in the forest districts during the analyzed period was 9.5. Most of them took place in forest districts within city agglomerations and in the mountains. The State Forests supported over 20% of running events organized in the areas they administer. They had also started numerous initiatives (such as "Wolność w naturze", "Zielony punkt kontrolny" and "BiegamBoLubię Lasy") that were evaluated positively by their participants (according to Facebook). In conclusion, it is clear that the State Forests do promote recreation in forests and forest education by supporting public events.
Źródło:
Leśne Prace Badawcze; 2018, 79, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of bio-heat transfer numerical models based on the Pennes and Cattaneo-Vernotte equations
Autorzy:
Ciesielski, M.
Duda, M.
Mochnacki, B.
Powiązania:
https://bibliotekanauki.pl/articles/122908.pdf
Data publikacji:
2016
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
bioheat transfer
Pennes equation
Cattaneo-Vernotte equation
numerical modeling of heating process
finite difference method
przepływ biociepła
równanie Pennesa
równanie Cattaneo-Vernotte
metoda różnic skończonych
modelowanie numeryczne
Opis:
The homogeneous soft tissue domain subjected to an external heat source is considered. Thermal processes in this domain are described using the well known Pennes equation and next the Cattaneo-Vernotte one. Within recent years the prevailing view is that the Cattaneo-Vernotte equation better describes the thermal processes proceeding in the biological tissue (it results from the specific internal tissue structure). Appearing in this equation the delay time of heat flux with respect to the temperature gradient (τq) is of the order of several seconds and the different values of τq are taken into account. At the stage of numerical modeling the finite difference method is used. In the final part of the paper, the examples of computations are shown.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2016, 15, 4; 33-38
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czynniki kształtujące łańcuchy dostaw w skali globalnej
Factors affecting supply chains in a global scale
Autorzy:
Ciesielski, M.
Kopeć, M.
Powiązania:
https://bibliotekanauki.pl/articles/1382934.pdf
Data publikacji:
2017
Wydawca:
Polskie Wydawnictwo Ekonomiczne
Tematy:
łańcuch dostaw
offshoring
reshoring
krzywa uśmiechnięta
dominacja
supply chain
smiling curve
domination
Opis:
W ostatnich kilkunastu latach można było zaobserwować wzrost znaczenia niektórych czynników kształtujących łańcuchy dostaw. Stąd celem artykułu jest sformułowanie opisowego modelu hipotetycznego współczesnych łańcuchów dostaw w branżach konsumpcyjnych. Trzy najważniejsze czynniki to: oligopolistyczny charakter rynku, presja cenowa i zjawisko dominacji w łańcuchach dostaw. Duże znaczenie ma także to, iż obok deindustrializacji pojawiła się reindustrializacja, która może zmienić współczesne łańcuchy dostaw. W wyjaśnianiu omawianych zjawisk warto posługiwać się schematem eksplanacyjnym, a przede wszystkim rozumowaniem abdukcyjnym. Taką próbę podjęto w artykule. Duża liczba czynników i ich zmienność nie pozwalają bowiem na użycie w badaniach nad łańcuchami dostaw bardziej precyzyjnych sposobów wyjaśniania. Opisane rozważania doprowadziły do hipotezy o wzrostowej tendencji poziomu konkurencji, zarówno wewnątrz, jak i między łańcuchami dostaw jutra.
In the last few years we have seen the growing importance of certain factors shaping the supply chains. Hence, the purpose of this article is to formulate a descriptive model of a hypothetical contemporary supply chains in the consumer industries. The three most important factors are: oligopolistic nature of the market, price pressure and the phenomenon of dominance in the supply chains. Great importance is also the fact that next to the deindustrialization appeared reindustrialization that could change the modern supply chains. In explaining the discussed phenomena, it is worth to use the explanation scheme and above all abduction. Such an attempt was made in the article. A large number of factors and their variability does not allow for the use in research on supply chains more accurate ways of explanation. Described considerations have led to the hypothesis of the upward trend in the level of competition between supply chains and within supply chains in the future.
Źródło:
Gospodarka Materiałowa i Logistyka; 2017, 4; 20-26
1231-2037
Pojawia się w:
Gospodarka Materiałowa i Logistyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dane społecznościowej informacji geograficznej jako źródło informacji o wykorzystaniu lasów w aglomeracji warszawskiej
Volunteered Geographic Information data as a source of information on the use of forests in the Warsaw agglomeration
Autorzy:
Ciesielski, M.
Stereńczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/979107.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Warsaw agglomeration
VGI
Flickr
GPS
forest recreational function
social media
Opis:
The purpose of this study was to present possibilities of using available Volunteered Geographic Information (VGI) created by users of Flickr to monitor activity in the forest areas within the Warsaw agglomeration. The paper indicates which forest complexes (municipal or agglomeration) were most frequently visited as well as the dates of the greatest use of forest areas in daily, weekly and monthly terms. The study objects include forest areas located in Warsaw and in 52 communes constituting the Warsaw agglomeration. The Kampinos National Park (KPN), which is under strong recreational pressure from the inhabitants of Warsaw agglomeration, was also analysed. In total, we used 1180 images from the Flickr portal in the study. The most visited place was the Kampinos National Park (18.7%), then the forest area in the Legionowo commune (10.7%), which constitute one large forest complex with forests in Choszczówka. Large, compact municipal forest complexes (e.g. Bielański and Linde (8.2%), Sobieski (7.4%) and Kabaty (5.3%)), as well as forests within the Mazowiecki Landscape Park (6.3%) were also very popular. Fraction of photos taken in municipal forests of Warsaw as well as in the agglomeration and KPN forests was larger on Saturdays and Sundays than on business days. It amounted to 51.7% and 59.3%, in forests of a given category respectively. Pictures from the agglomeration and KPN forest areas were most often taken in May (13.8%), while the least often in December (3.3%). Fraction of people visiting municipal forests of Warsaw was the largest in December (12.3%) and the lowest in July (5.0%). On a daily basis, the most activity in both categories was recorded between 11−18. The use of VGI data from the Flickr portal enabled spatial and temporal analysis of user activity in urban and suburban forests. The results obtained confirm current research using survey forms, but in contrast to them, they show the actual places visited for recreation. It should be emphasized that due to the privacy policy of portals, VGI data do not contain information about the metric and status of the user, which makes the analyses inadequate for the entire population.
Źródło:
Sylwan; 2020, 164, 08; 695-704
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integro-differential form of the first-order dual phase lag heat transfer equation and its numerical solution using the Control Volume Method
Autorzy:
Ciesielski, M.
Mochnacki, B.
Majchrzak, E.
Powiązania:
https://bibliotekanauki.pl/articles/38606551.pdf
Data publikacji:
2020
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
micro-scale heat transfer
dual phase lag model
integro-differential equation
Control Volume Method
Opis:
The start point of the dual phase lag equation (DPLE) formulation is the generalized Fourier law in which two positive constants (the relaxation and thermalization times) appear. This type of equation can be used (among others) to describe the heat conduction processes proceeding in micro-scale. Depending on the number of components in the development of the generalized Fourier law into a power series, one can obtain both the first-order DPLE and the second-order one. In this paper the first-order dual phase lag equation is considered. The primary objective of this research is the transformation of DPLE differential form to the integro-differential one supplemented by the appropriate boundary-initial conditions. The obtained form of the differential equation is much simpler and more convenient at the stage of numerical computations – the numerical algorithm based on the three-time-level scheme reduces to the two-time-level one. To find the numerical solution, the Control Volume Method is used (the heating of thin metal film subjected to a laser beam is considered). The choice of the numerical method was not accidental. The method has a simple physical interpretation ensuring the preservation of the local and global energy balances. To our knowledge, it has not been used so far in this type of tasks. In the final part of the paper the examples of numerical simulations are presented and the conclusions are formulated.
Źródło:
Archives of Mechanics; 2020, 72, 5; 415-444
0373-2029
Pojawia się w:
Archives of Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model łańcucha dostaw zdominowanego przez sieci detaliczne
Supply chain model dominated by retail networks
Autorzy:
Ciesielski, M
Powiązania:
https://bibliotekanauki.pl/articles/1377954.pdf
Data publikacji:
2014
Wydawca:
Polskie Wydawnictwo Ekonomiczne
Tematy:
łańcuch dostaw
dominacja
modele
supply chain
models
domination
Opis:
There is a tendency to emphasize the importance of the phenomenon of domination in supply chains. The problem need to be discussed and there is also a need for us to look for the theoretical basis of the problem. The output of industrial economics may be helpful for the analysis of the European food supply chains, which are dominated by retail networks. The analysis indicates, that the fact, that the suppliers in this chains are dominated enables to build the prices barriers to entry. So there is created a contestable market. The identification of the type of market may be the basis for actions to limit the domination.
Źródło:
Gospodarka Materiałowa i Logistyka; 2014, 3; 2-5
1231-2037
Pojawia się w:
Gospodarka Materiałowa i Logistyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modele zdominowanych łańcuchów dostaw – podejście abdukcyjne
Models of dominated supply chains – abductional approach
Autorzy:
Ciesielski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1381640.pdf
Data publikacji:
2015
Wydawca:
Polskie Wydawnictwo Ekonomiczne
Tematy:
łańcuch dostaw
dominacja
abdukcja
supply chain
domination
abduction
Opis:
Wiele uwagi poświęca się dziś negatywnym zjawiskom, które towarzyszą offshoringowi. Wskazuje się na presję cenową wobec dostawców i nieuczciwe praktyki wielkich odbiorców. Poszukuje się sposobów zmniejszania tych zjawisk, jako że prowadzą one oczywiście do nieefektywnego rynku. Wpierw jednak trzeba odpowiednio opisać i przeanalizować procesy dominacji w łańcuchach dostaw. Dobrym rozwiązaniem wydaje się zastosowanie rozumowania abdukcyjnego. Powodzenie takiego podejścia każe zwrócić większą uwagę na przydatność abdukcji.
Nowadays much attention is paid to the negative phenomena, which are referred to offshoring. The price pressure on suppliers and unfair practices of large consumers are pointed. The methods for reduce these phenomena are searching because of the fact that they really lead to an inefficient market. However in the first place the processes of domination in the supply chains should be described and analysed. The abductional approach seems to be a good solution. The success of this approach makes the usefulness of abduction more distinct and leads to pay more attention to the phenomenon.
Źródło:
Gospodarka Materiałowa i Logistyka; 2015, 3; 2-5
1231-2037
Pojawia się w:
Gospodarka Materiałowa i Logistyka
Dostawca treści:
Biblioteka Nauki
Artykuł

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