Temat: Differentiation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zróżnicowanie częstości posuch na obszarze Polski jako kryterium rejonizacji potrzeb nawadniania
Chastota vystupanaja zasukhi na territorii Polshi kak kriterijj rajjonirovanija potrebnostejj v oroshenii
Occurence frequency of droughts on the Polands territory as a criterion of regionalization of irrigation needs
Autorzy:: Zawora, T.
Powiązania:: https://bibliotekanauki.pl/articles/796115.pdf
Data publikacji:: 1990
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: zroznicowanie
czestosc
posucha
rejonizacja
potrzeby
nawadnianie
Polska
differentiation
frequency
drought
regionalization
requirement
irrigation
Polska
Opis:: В период 1956-1975 г. по отдельным месяцам периода вегетации на территории бывших 17 воеводств были проанализированы данные за 20 лет относительно частоты выступания засухи. Анализ показал, что чаще всего засуха выступает в центральной и северо-западной части Польши, ограниченных с юга Южно-Велькопольской низменностью, с востока - долиной Вислы и западной частью Мазовецкой низменности. Для яровых хлебных культур, наиболее подвергнутых опасности недостатка осадков, частота выступания засухи на протяжении мая и июня на вышеназванной территории составляет 40%, при средней частоте для всей Польши - 27%.
The 20-year observation results concerning the occurrence frequency of drought in particular months of the period 1952-1975 on the territory of 17 former provinces are analyzed. The analysis has proved that dorughts occur most often in the central and north-western parts of the Poland’s territory bordering from south by the Wielkopolska plain, from east - by the Vistula valley and the northern part of the Mazowsze plain. For spring cereals with the greatest threat of the precipitation deficiency, the occurrence of drought in May-June is in the above country regions 40%. whereas the mean occurrence frequency for the whole country amounts to 27%.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1990, 387
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Zróżnicowanie geograficzne potrzeb deszczowania roślin w świetle symulacji bilansowej metody sterowania nawadnianiem w Polsce
Geograficheskaja differenciacija potrebnostejj v dozhdevanii kul'tur simulirovannykh na komp'jutere soglasno balansnomy metodu upravlenija orosheniem
Geographical variation in the sprinkler irrigation requirements of crops in the light of a computer simulation according to the balance method of irrigation control
Autorzy:: Manteuffel, H.
Powiązania:: https://bibliotekanauki.pl/articles/797033.pdf
Data publikacji:: 1990
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: zroznicowanie geograficzne
potrzeby
deszczowanie
symulacja
bilans
sterowanie nawadnianiem
Polska
geographic differentiation
requirement
sprinkling
simulation
balance
irrigation control
Polska
Opis:: Проведено сравнение средних оросительных норм, исчисленных путём компьютерного симулирования дождевания 17-ти культур и 2-х образцовых орошаемых севооборотов в течение 27 лет в условиях 11-ти географических пунктов в Польше. Выделены 3 зоны потребности ворошении.
Average total seasonal application of sprinkler irrigation for 17 crops and two standard crop rotations calculated by means of a computer simulation under conditions of 11 localities in Poland has been compared. Three zones of irrigatio requirements have been discerned.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1990, 387
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: A Numerical Algorithm for Filtering and State Observation
Autorzy:: Ibrir, S.
Powiązania:: https://bibliotekanauki.pl/articles/908263.pdf
Data publikacji:: 1999
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: krzywa składana
różniczkowanie numeryczne
obserwator
spline functions
numerical differentiation
observers
smooth filters
Opis:: This paper deals with a numerical method for data fitting and estimation of continuous higher-order derivatives of a given signal from its non-exactsampled data. The proposed algorithm is a generalization of the algorithm proposed by Reinsch (1967). This algorithm is conceived as a key element in the structure of the numerical observer discussed in our recent papers. Satisfactory results are obtained which prove the efficiency of the proposed approach.
Źródło:: International Journal of Applied Mathematics and Computer Science; 1999, 9, 4; 855-869
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Histological analysis of ovaries of Dreissena polymorpha from various habitats
Autorzy:: Domagala, J.
Leczynska, D.
Swider, A.
Powiązania:: https://bibliotekanauki.pl/articles/83562.pdf
Data publikacji:: 1999
Wydawca:: Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:: histological analysis
ovary
Dreissena polymorpha
habitat differentiation
mussel
Źródło:: Folia Malacologica; 1999, 07, 4
1506-7629
Pojawia się w:: Folia Malacologica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Species differentiation of yeasts and yeast-like organisms in the water and bottom sediments of the Szczecin Lagoon
Zróżnicowanie gatunkowe drożdży i grzybów drożdżopodobnych w wodzie i osadach dennych Zalewu Szczecińskiego
Autorzy:: Boguslawska-Was, E.
Dabrowski, W.
Powiązania:: https://bibliotekanauki.pl/articles/85099.pdf
Data publikacji:: 1999
Wydawca:: Akademia Pomorska w Słupsku
Tematy:: species differentiation
yeast
yeast-like organism
water
bottom sediment
Szczecin Lagoon
Candida
Rhodotorula
occurrence
qualitative assessment
fungi
growth
physiological activity
microorganism
Źródło:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 1999, 03
1643-0115
Pojawia się w:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: A general differentiation theorem for superadditive processes
Autorzy:: Sato, Ryotaro
Powiązania:: https://bibliotekanauki.pl/articles/965787.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:: differentiation theorem
superadditive process
absolutely continuous norm
local ergodic theorem
semigroup of positive linear operators
Banach lattice of functions
Opis:: Let L be a Banach lattice of real-valued measurable functions on a σ-finite measure space and T={$T_t$: t < 0} be a strongly continuous semigroup of positive linear operators on the Banach lattice L. Under some suitable norm conditions on L we prove a general differentiation theorem for superadditive processes in L with respect to the semigroup T.
Źródło:: Colloquium Mathematicum; 2000, 83, 1; 125-136
0010-1354
Pojawia się w:: Colloquium Mathematicum
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Differentiation of chemical properties of forest soils in the range of beech trees [Fagus sp.] under the influence of atmospheric pollution in the Dobrzany Forest Inspectorate of the West Pomerania District
Autorzy:: Raczkowski, B
Powiązania:: https://bibliotekanauki.pl/articles/1449235.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: Pomeranian region
anthropogenic factor
beech tree
chemical property
brown soil
forest soil
soil
soil property
atmospheric pollution
Dobrzany Forest Inspectorate
degraded ecosystem
anthropogenic ecosystem
Fagus
differentiation
Opis:: The author investigated a 0-3 cm layer of two forest brown soils: brown acid and brown leached. These forest soils were under handsome beech trees (Fagus sp.) between 100 and 120 years old. The author compared the chemical properties of the soils. The soil existing near the tree trunk (1 m2 of surface, strongly washed by rain water polluted by chemical substances) and the soil existing under the tree umbrella (40 m2 of surface in the area of the tree-tops, washed poorly by rain water). This comparison showed changes in these properties, dependent upon the degree of atmospheric contamination. It was found that, at the same level of atmospheric contamination, higher changes of properties were found in brown leached soil than in brown acid soil. Less acidified soils (with alkaline or neutral pH reaction) are more suitable in these researches. The investigations of the forest soil layer 0-3 cm (12 soil profiles) showed that changes in their chemical properties in relation to tree trunk-tree umbrella can be the basis of assessment of the degree of atmospheric contamination.
Źródło:: Acta Agrophysica; 2001, 51; 151-157
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Humus fractional composition of the selected soils in the Malopolska Province
Autorzy:: Kopec, M
Gondek, K.
Powiązania:: https://bibliotekanauki.pl/articles/1450500.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: quantitative differentiation
humic acid
physical property
chemical property
soil
biological property
humus fraction
soil component
Malopolska region
terrestrial ecosystem
fulvic acid
qualitative differentiation
Opis:: Twenty different soils were investigated. The soils varied in their acidification degree, granulometric composition and a carbon content. The investigated soils were collected from arable land, meadows and forests. Humic compounds were extracted from the soil according to the Konowowa and Bielczikova's method. Very high quantitative and qualitative differentiation\was observed. It was related to the soil type and utilisation system. Low but differentiated quantities of humic compounds extracted by 0.05 M H2SO4 were found in the samples of the analysed soils. In the extract of pyrophosphate and sodium base as well as in the extract of sodium base, there were more fulvic acids than humic acids which was reflected in the narrow Ckh:Ckf ratio, particularly in the forest soils. In addition very high proportion of non-hydrolysing carbon was observed. Its content ranged from 52 to 84%. The highest proportion of this fraction was found in the soils agriculturally utilised.
Źródło:: Acta Agrophysica; 2001, 50; 139-146
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: On the relationship between fractal geometry of space and time in which a system of interacting cells exists and dynamics of gene expression.
Autorzy:: Waliszewski, Przemysław
Molski, Marcin
Konarski, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/1044188.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: complexity
neoplasia
fractal
differentiation
fractal dimension
Opis:: We report that both space and time, in which a system of interacting cells exists, possess fractal structure. Each single cell of the system can restore the hierarchical organization and dynamic features of the entire tumor. There is a relationship between dynamics of gene expression and connectivity (i.e., interconnectedness which denotes the existence of complex, dynamic relationships in a population of cells leading to the emergence of global features in the system that would never appear in a single cell existing out of the system). Fractal structure emerges owing to non-bijectivity of dynamic cellular network of genes and their regulatory elements. It disappears during tumor progression. This latter state is characterized by damped dynamics of gene expression, loss of connectivity, loss of collectivity (i.e., capability of the interconnected cells to interact in a common mode), and metastatic phenotype. Fractal structure of both space and time is necessary for a cellular system to self-organize. Our findings indicate that results of molecular studies on gene expression should be interpreted in terms of space-time geometry of the cellular system. In particular, the dynamics of gene expression in cancer cells existing in a malignant tumor is not identical with the dynamics of gene expression in the same cells cultured in the monolayer system.
Źródło:: Acta Biochimica Polonica; 2001, 48, 1; 209-220
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Stratigraphic and geochemical differentiation of organogenic sediments in the river valley of Ciemiega as a result of anthropogenic alterations in the area of the river basin in the Holocene
Autorzy:: Borowiec, J
Urban, D.
Powiązania:: https://bibliotekanauki.pl/articles/1450833.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: loess area
organogenic sediment
Holocene
river valley
soil
sediment stratigraphy
geochemical differentiation
Lublin Upland
terrestrial ecosystem
Ciemiega River
Opis:: Anthropogenic alterations of the recent millennia of our era, in the loess areas of the Lublin Upland are clearly visible in the composition and character of the sediments that fill river valleys. This paper is an attempt to review this issue on the example of a small river valley that runs through the loess relief regions near Lublin. Samples were taken from deep drilling (up to 6 m) in the three cross-sections of the valley (Ożarów, Jastków, Snopków). A total of 172 samples taken from 5 drillings were investigated. The results obtained allow to conclude that delluvial processes dominated in the course of sediment formation that filled the Ciemięga river valley. Those delluvial processes started in the Neolyth by climatic changes and cutting down forests for the incoming agriculture - and have been intensified since the Middle Ages up till now. It is seen in a clear correlation between the growing part of ash components and mineral interbeddings in the peat deposits, as well as in the presence of cereal grains and weed pollen from cultivated fields in the investigated samples. In the chemical composition of the sediments, anthropogenic enrichment of K, P, Fe, Mn, Pb, Cr, Cu, Zn, and Co is observed.
Źródło:: Acta Agrophysica; 2001, 50; 29-40
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Changes in the cellular behaviour of human colonic cell line Caco-2 in response to butyrate treatment.
Autorzy:: Dzierżewicz, Zofia
Orchel, Arkadiusz
Węglarz, Ludmiła
Latocha, Małgorzata
Wilczok, Tomasz
Powiązania:: https://bibliotekanauki.pl/articles/1043829.pdf
Data publikacji:: 2002
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: colonocytes
sodium butyrate
interleukin-8
apoptosis
differentiation
Caco-2 cells
Opis:: Gut-derived adenocarcinoma Caco-2 cells were treated with sodium butyrate (NaB) at physiologically relevant concentrations. We characterized its effects on proliferation, differentiation, apoptosis, adhesion to the solid support and interleukin-8 secretion. Differentiation was determined by brush border alkaline phosphatase activity. Apoptosis was assessed by acridine orange and Hoechst stains. Differentiation and apoptosis were analyzed in both adherent and floating cell populations. The transformed Caco-2 cells did not retain their malignant phenotype in the presence of NaB. They appeared to undergo a change in the phenotype induced by NaB, as indicated by reduced proliferation, enhanced differentiation, stimulation of apoptosis leading to decreased viability of cells, and stimulation of interleukin-8 secretion. Considering all the above facts and data, we postulate that Caco-2 cells cultured in NaB supplemented medium could regain the phenotypic characteristics of the phenotype of the parent cell from which originated the Caco-2 line.
Źródło:: Acta Biochimica Polonica; 2002, 49, 1; 211-220
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Genetic differences between two Polish populations of Pinus uliginosa, compared to P. sylvestris and P. mugo
Autorzy:: Lewandowski, A
Samocko, J.
Boratynska, K.
Boratynski, A.
Powiązania:: https://bibliotekanauki.pl/articles/41457.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: pine
genetic distance
Pinus sylvestris
Pinaceae
electrophoresis
peat bog pine
allozyme
Pinus uliginosa
Pinus mugo
genetic differentiation
Opis:: Genetic differences between two populations of P. uliginosa from Batorów and Węgliniec were assessed on the basis of 15 allozyme loci. The level of genetic differentiation between them was also compared with genetic differences among the three closely related pine taxa: P. uliginosa, P. sylvestris and P. mugo. A high level of genetic variation was found in both populations of P. uliginosa. The average (Na) and effective (Ne) numbers of alleles per locus amounted respectively to 2.47 and 1.50 in Węgliniec and to 2.67 and 1.52 in Batorów and the percentage of polymorphic loci was 80% and 87%, respectively. Close relationship between the three studied species were confirmed. The genetic differences between the two populations of P. uliginosa were substantial, as the Nei's genetic distance between the two populations (D = 0.040) was larger than between populations of P. sylvestris and between populations of P. mugo. The relatively high level of genetic differentiation between P. uliginosa populations may result from their isolation, small size and possibly different origin of these populations.
Źródło:: Dendrobiology; 2002, 48
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Side-chain modified vitamin D analogs require activation of both PI 3-K and erk1,2 signal transduction pathways to induce differentiation of human promyelocytic leukemia cells.
Autorzy:: Marcinkowska, Ewa
Kutner, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/1043768.pdf
Data publikacji:: 2002
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: CD11b
cytosolic phospholipase A2
p70S6K
nuclear vitamin D receptor
CD14
analogs
phosphatidylinositol 3-kinase
extracellular-signal regulated kinase
1,25-dihydroxyvitamin D3
HL-60 cells
differentiation
Opis:: Synthetic analogs of vitamin D for potential use in differentiation therapy should selectively regulate genes necessary for differentiation without inducing any perturbations in calcium homeostasis. PRI-1906, an analog of vitamin D2, and PRI-2191, an analog of vitamin D3 bind nuclear vitamin D receptor (nVDR) with substantially lower affinity than 1,25-dihydroxyvitamin D3 (1,25-D3), but have higher differentiation-inducing activity as estimated in HL-60 leukemia cell model. To examine how their increased differentiation-inducing activity is regulated we tested the hypothesis that membrane-mediated events, unrelated to nVDR, take part in the differentiation in response to PRI-1906 and PRI-2191. The induction of leukemia cell differentiation in response to the analogs of vitamin D was inhibited by LY294002 (phosphatidylinositol 3-kinase inhibitor), PD98059 (inhibitor of MEK1,2, an upstream regulator of extracellular-signal regulated kinase) and rapamycin (p70S6K inhibitor) pointing out that activation of signal transduction pathways unrelated to nVDR is necessary for differentiation. On the other hand, inhibition of cytosolic phospholipase A2 accelerated the differentiation of HL-60 cells induced by either 1,25-D3 or by the vitamin D analogs suggesting possible existence of a feedback loop between extracellular-signal regulated kinases and phospholipase A2.
Źródło:: Acta Biochimica Polonica; 2002, 49, 2; 393-406
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Genetic variation of cowslip [Primula veris L.] populations [West Poland]
Autorzy:: Morozowska, M
Krzakowa, M.
Powiązania:: https://bibliotekanauki.pl/articles/57550.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: Primulaceae
Polish population
botany
Primula veris
allozyme
gene flow
Primula
genetic differentiation
Opis:: Genetic variation of twelve Polish populations of Primula veris L. from western Poland was investigated in respect of six enzyme systems: 6-phosphogluconate dehydrogenase (6PGD), diaphorase (DIA), menadione reductase (MNR), formate dehydrogenase (FDH), isocitrate dehydrogenase (IDH) and glutamate oxaloacetate transaminase (GOT). Only two of them (6PGD and DIA) were polymorphic and all populations were compared according to four loci and eight alleles. For 6PGD only one out of the two detected loci (locus 6PGD-2) was polymorphic and consisted of three alleles a, b and c. For DIA each of two detected loci had two alleles. For 6PGD-2 one population was monomorphic and four populations were monomorphic for DIA-1 and DIA-2. The rest of the populations were polymorphic with low frequency of heterozygotes. The low heterozygosity level, found in the examined populations, was confirmed by high values of the fixation index (F). The level of genetic differentiation among GST populations specified for each polymorphic loci, was equal to 0.045 for 6PGD-2 and had the value of 0.078 for DIA-2 and 0.186 for DIA-1. Nm value for polymorphic loci was 1.10 for DIA-1 and 2.94 for DIA-2, and for 6PGD-2 was 5.33, what indicates some gene flow between the examined populations. The dendrogram constructed on the basis of genotype frequencies showed that the populations were divided into two groups, however the most southern population No. 2 was clearly similar to the northern population No. 8.
Źródło:: Acta Societatis Botanicorum Poloniae; 2003, 72, 4
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Morphological variability of Juniperus phoenicea [Cupressaceae] from three distant localities on Iberian Peninsula
Autorzy:: Mazur, M
Boratynska, K.
Marcysiak, K.
Gomez, D.
Tomaszewski, D.
Didukh, J.
Boratynski, A.
Powiązania:: https://bibliotekanauki.pl/articles/57298.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: variability
cone
juniper
statistical analysis
locality
Cupressaceae
biometry
Iberian Peninsula
Juniperus phoenicea
morphological differentiation
Opis:: The aim of the present study was biometrical comparison of three Iberian populations of Juniperus phoenicea, represented by the subsp. turbinata and subsp. phoenicea. Eight features of the cones and seeds, two of the shoots and leaves were studied. The biometrical analysis of three distant populations of J. phoenicea shows great taxonomic distances among them. Two of them, representatives of J. phoenicea subsp. turbinata, are closer related each other than to the third, which represents J. phoenicea subsp. phoenicea. These results confirm the genetic differentiation of the taxons and also the biochemical and morphologic division of them. Nevertheless, the distances between particular populations are so great that more resemble the distances between species than between subspecies.
Źródło:: Acta Societatis Botanicorum Poloniae; 2003, 72, 1
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Differentiation" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język