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Wyświetlanie 1-25 z 499
Tytuł:
Renal function during metabolic acidosis
Autorzy:
Kurpinska, A.K.
Skrzypczak, W.F.
Powiązania:
https://bibliotekanauki.pl/articles/3008.pdf
Data publikacji:
2010
Wydawca:
Instytut Medycyny Wsi
Tematy:
renal function
metabolic acidosis
acid-case imbalance
acid-base homeostasis
renal tubule
excretion
reabsorption
proteomics
Źródło:
Journal of Pre-Clinical and Clinical Research; 2010, 04, 1
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
"Ryś" kpt. Stanisław Łukasik
Autorzy:
W. F.
Z. B.
Cz. P.
Powiązania:
Biuletyn Informacyjny / Światowy Związek Żołnierzy Armii Krajowej. Zrzeszenie Wolność i Niezawisłość Lublin 1994, nr 5, s. 35-37
Data publikacji:
1994
Tematy:
Łukasik, Stanisław (1918-1949)
Delegatura Sił Zbrojnych na Kraj
Inspektorat Lublin (Wolność i Niezawisłość)
Wojskowy Sąd Rejonowy (Warszawa)
Sądownictwo wojskowe
Kara śmierci
Podziemie polityczne i zbrojne (1944-1956)
Biografia
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Effect of Post Annealing on La$\text{}_{0.7}$Sr$\text{}_{0.3}$MnO$\text{}_{3}$ Thin Films
Autorzy:
Cheng, W. F.
Leung, C. W.
Powiązania:
https://bibliotekanauki.pl/articles/2047232.pdf
Data publikacji:
2007-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.-m
73.50.-h
Opis:
The stability of La$\text{}_{0.7}$Sr$\text{}_{0.3}$MnO$\text{}_{3}$ thin films fabricated by pulsed laser deposition, under different annealing procedures, was investigated. La$\text{}_{0.7}$Sr$\text{}_{0.3}$MnO$\text{}_{3}$ films were deposited on (100) LaAlO$\text{}_{3}$ substrates at 650ºC with the films thickness from 20 to 50 nm. The oxygen pressures used to fabricate the films were 150 mTorr and 100 mTorr. Then in situ annealing steps were performed at 100 and 150 mTorr, respectively. Curie temperatures (T$\text{}_{c}$) of the films were estimated from the peaks of the temperature dependent resistance data. For the films deposited at 100 mTorr and annealed at 150 mTorr, T$\text{}_{c}$ slightly dropped for short annealing time and recovered to 360 K for 30 min annealing. For the films deposited at 100 mTorr and annealed at 150 mTorr, it maintained semiconducting behavior without transition after annealing up to 30 minutes. For ex situ post annealing, it was found that the T$\text{}_{c}$ of the films strongly depended on the annealing procedures.
Źródło:
Acta Physica Polonica A; 2007, 111, 1; 117-122
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling and Analysis of the Synergistic Alloying Elements Effect on Hardenability of Steel
Autorzy:
Sitek, Wojciech
Trzaska, Jacek
Gemechu, W. F.
Powiązania:
https://bibliotekanauki.pl/articles/2203932.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
hardenability
artificial neural networks
multiple regression
steel alloy
modelling and simulation
hartowność
sztuczne sieci neuronowe
regresja wielokrotna
stal
modelowanie i symulacja
Opis:
The paper presents a methodology of modeling relationships between chemical composition and hardenability of structural alloy steels using computational intelligence methods, that are artificial neural network and multiple regression models. Particularly, the researchers used unidirectional multilayer teaching method based on the error backpropagation algorithm and a quasi-newton methods. Based on previously known methodologies, it was found that there is no universal method of modeling hardenability, and it was also noted that there are errors related to the calculation of the curve. The study was performed on large set of experimental data containing required information on about the chemical compositions and corresponding Jominy hardenability curves for over 400 data steel heats with variety of chemical compositions. It is demonstrated that the full practical usefulness of the developed models in the selection of materials for particular applications with intended performance in the area of application.
Źródło:
Archives of Foundry Engineering; 2022, 22, 4; 102--108
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizing the use of the PHYTOTOXKIT test to assess the toxicity of soil contaminated with creosote
Autorzy:
Kucaj, W.F.
Rygielski, K.
Cybulska, K.
Powiązania:
https://bibliotekanauki.pl/articles/971611.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
phytotoxicity
plants
creosote
mathematical model
Opis:
Soil phytotoxicity studies were performed with different doses of creosote by means of the PHYTOTOXKIT test, using Sinapis alba, Lepidium sativum, Sorghum saccharatum as test plants. The obtained results indicate highly signifiant effect of the creosote dose, duration of soil incubation, type of test plant and period, after which the root length measurement was performed during the phytotoxicity index root test. The analysis of results indicates the highest sensitivity of Sorghum saccharatum to creosote and the highest correlation of results obtained with the aid of Lepidium sativum when measuring the root length after the fist day the seeds are lined with the size of the dose. The proposed mathematical model makes it possible to predict the reaction of test plants on the size of creosote dose as well as to assess its amount in the soil based on the root phytotoxicity. These results allow for a signifiant simplifiation of the test and shorten its duration. This allows the modifid test to be used for simple monitoring of not only the phytotoxicity but also the creosote residues during reclamation of contaminated soil.
Źródło:
Polish Journal of Soil Science; 2019, 52, 1; 153-164
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatio-temporal risk assessment models for Lobesia botrana in uncolonized winegrowing areas
Autorzy:
Heit, G.E.
Sione, W.F.
Acenolaza, P.G.
Powiązania:
https://bibliotekanauki.pl/articles/65802.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The objective of this work was to generate a series of equations to describe the voltinism of Lobesia botrana in the quarantine area of the main winemaking area of Argentina, Mendoza. To do this we considered an average climate scenario and extrapolated these equations to other winegrowing areas at risk of being invaded. A grid of 4 km2 was used to generate statistics on L. botrana captures and the mean temperature accumulation for the pixel. Four sets of logistic regression were constructed using the percentage of accumulated trap catches/grid/week and the degree-day accumulation above 7°C, from 1st July. By means of a habitat model, an extrapolation of the phenological model generated to other Argentine winemaking areas was evaluated. According to our results, it can be expected that 50% of male adult emergence for the first flight occurs at 248.79 ± 4 degree-days (DD), in the second flight at 860.18 ± 4.1 DD, while in the third and the fourth flights, 1671.34 ± 5.8 DD and 2335.64 ± 4.3 DD, respectively. Subsequent climatic comparison determined that climatic conditions of uncolonized areas of Cuyo Region have a similar suitability index to the quarantine area used to adjust the phenological model. The upper valley of Río Negro and Neuquén are environmentally similar. Valleys of the northwestern region of Argentina showed lower average suitability index and greater variability among SI estimated by the algorithm considered. The combination of two models for the estimation of adult emergence time and potential distribution, can provide greater certainties in decision-making and risk assessment of invasive species.
Źródło:
Journal of Plant Protection Research; 2019, 59, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feeding milk replacer instead of whole milk affects blood plasma proteome and lipid profile in preruminant calves
Autorzy:
Lepczynski, A.
Herosimczyk, A.
Ozgo, M.
Skrzypczak, W.F.
Powiązania:
https://bibliotekanauki.pl/articles/2087979.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The study was undertaken to determine the effect of feeding milk or milk-replacer on the blood plasma proteome and lipid profile in calves during the second week of life. Feeding milk-replacer significantly decreased the expression of plasma apoA-I. Age of calves affected apoA-I expression, which was higher on the 8th than on the 11th and 14th day of life. A significant effect of interaction between diet and age was also observed. The expression of apoA-IV, was significantly affected by diet and was lower in calves fed milk replacer. Expression of this protein was significantly lower at the 8th day of life and was up-regulated in the calves fed milk-replacer at the second week of life. Calves fed milk-replacer had greater expression of haptoglobin, which differed significantly between days of blood sampling, being higher on the 8th than on the11th and 14th day. The interactive effect of diet and age affected haptoglobin expression, which was successively down-regulated in calves fed milk replacer. Diet had a significant effect on the plasma lipid profile. Animals fed milk had a greater concentration of TC, HDLC and LDLC. The composition of milk-replacer, especially fat source, is probably the main factor that affects expression of proteins involved in cholesterol metabolism and level of components of lipid profile in calves fed formula. We claim that the initially increased level of haptoglobin, followed by its decrease during the second week of life in calves fed milk-replacer may indicate the presence of short-term stress induced by changes in the feeding system.
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in lipid metabolism during last month of pregnancy and first two months of lactation in primiparous cows-analysis of apolipoprotein expression pattern and changes in concentration of total cholesterol, HDL, LDL, triglycerides
Autorzy:
Kurpinska, A.K.
Jarosz, A.
Ozgo, M.
Skrzypczak, W.F.
Powiązania:
https://bibliotekanauki.pl/articles/30783.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The final weeks of pregnancy and period of increasing lactation abound with adaptive changes in the intensity of metabolic processes. Maintaining the homeostasis of an organism in prepartum and postpartum periods is the key condition in maintaining the health of the mother and the fetus/calf. The aim of the study was to analyze physiological changes in lipid metabolism in cows during the last month of first pregnancy and in the first two months of lactation, based on the expression of identified apolipoproteins and changes in selected parameters of the lipid metabolism in peripheral blood plasma. Statistically significant changes in the expression of identified apolipoproteins were observed for apolipoprotein A-1 precursor, apolipoprotein A-IV precursor, apolipoprotein E precursor and apolipoprotein J precursor. The lowest expression of the apolipoproteins was noted around parturition and higher expression was observed during the final weeks of pregnancy and during lactation. Tendencies of changes in the concentration of total cholesterol, HDL and LDL were similar in blood plasma from analyzed cows - in the last month of pregnancy a decrease was observed and subsequently an increase in the first two months of lactation was noted. In contrast to abrupt changes observed for total cholesterol, HDL and LDL, changes in concentration of triglycerides were not that extensive and during lactation this parameter was rather stable. Evaluation of changes in the analyzed parameters may contribute to a better understanding of the changes in lipid metabolism occurring in the body of pregnant and lactating young cows.
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Procesy zużycia według schematu „narzędzie tnące – stopy tytanu”
Processes of wear by pattern cutting tool - titanium alloys
Autorzy:
Korbut, E.
Wajs, E.
Radko, W.
Labunec, W. F.
Zagrebelny, W.
Powiązania:
https://bibliotekanauki.pl/articles/404355.pdf
Data publikacji:
2015
Wydawca:
Wydawnictwo AWART
Tematy:
stopy tytanu
narzędzie tnące
adhezja
titanium alloys
cutting tool
adhesion
Opis:
W artykule ukazano podstawowe typy zużycia narzędzia tnącego podczas obróbki jednego z różnorodnych trudnoobrabialnych materiałów – stopów na osnowie tytanu.
The article shown wear processes during cutting of difficult materials, which are titanium alloys. also brought closer to the surface phenomena of friction contact surfaces of the cutting tool and the workpiece.
Źródło:
Obróbka Metalu; 2015, 1; 36-39
2081-7002
Pojawia się w:
Obróbka Metalu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application and comparative performance of network modularity algorithms to ecological communities classification
Autorzy:
Thiergart, T.
Schmitz, U.
Landan, G.
Martin, W.F.
Dagan, T.
Powiązania:
https://bibliotekanauki.pl/articles/59149.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
ecological informatics
comparative performance
information visualization
vegetation
phytosociology
network
ecological community
classification
Opis:
Network modularity is a well-studied large-scale connectivity pattern in networks. The detection of modules in real networks constitutes a crucial step towards a description of the network building blocks and their evolutionary dynamics. The performance of modularity detection algorithms is commonly quantified using simulated networks data. However, a comparison of the modularity algorithms utility for real biological data is scarce. Here we investigate the utility of network modularity algorithms for the classification of ecological plant communities. Plant community classification by the traditional approaches requires prior knowledge about the characteristic and differential species, which are derived from a manual inspection of vegetation tables. Using the raw species abundance data we constructed six different networks that vary in their edge definitions. Four network modularity algorithms were examined for their ability to detect the traditionally recognized plant communities. The use of more restrictive edge definitions significantly increased the accuracy of community detection, that is, the correspondence between network-based and traditional community classification. Random-walk based modularity methods yielded slightly better results than approaches based on the modularity function. For the whole network, the average agreement between the manual classification and the network-based modules is 76% with varying congruence levels for different communities ranging between 11% and 100%. The network-based approach recovered the known ecological gradient from riverside – sand and gravel bank vegetation – to dryer habitats like semidry grassland on dykes. Our results show that networks modularity algorithms offer new avenues of pursuit for the computational analysis of species communities.
Źródło:
Acta Societatis Botanicorum Poloniae; 2014, 83, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 499

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