Wyniki wyszukiwania - Biblioteka Nauki

1

Glacial morphogenesis of uplands of the Warta Glaciation in Poland as a con trol on heavy metal distribution in deposits

100%

Falkowska E.

Geological Quarterly

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2009

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tom Vol. 53, No 3

293-304

EN

The investigations were carried out to determine the relation ship between Cr, Co, Cd, Cu, Zn and Pb content and glacial morphogenesis that implies the geomorphological position of out crops of Quaternary deposits. The analysis deals with parts of two glacial uplands whose relief developed during deglaciation of the Warta ice sheet and which are characterized by similar relief and lithology of surface deposits. These are the Nidzica Upland near Grzebsk and the Bielsk Plain near Bielsk Podlaski. These areas show distinct regularity in pattern of geomorphological units, proving their areal deglaciation. Melt-out depressions, side valleys, ablation covers, kame terraces and kames as well as glaciofluvial plains are observed. The typical geomorphological element is isolated morainic hills (mesas). The investigations en abled determinations of regularity in the distribution of chemical eleements in the soil environment of the geomorphological units. Among mineral sediments, clay interlayers observed within kameter race and kame deposits were the most susceptible to concentrations of heavy metals, regard less of the region and the element to be determined. Lower Cd, Cu, Co, Pb, Zn and Cr contents were as sociated with morainic mesa and ablation cover deposits. The lowest contents of heavy minerals were mea sured in glaciofluvial plain, kame and kame terrace sands. Among land forms filled with organic deposits, the high estabilities to fix Cr, Co, Cu and Zn were shown by ice-dammed basins within upland deposits (Nidzica Upland) and side valley deposits (Bielsk Plain). Peats and muds of melt-out depressions were found to be most active in retaining Cd and Pb.

2

Risk According to the Relational Theory of Society

100%

Mangone E.

Stan Rzeczy

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2017

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nr 1(12) The Relational Turn in Sociology: Implications for the Study of Society, Culture, and Persons

261-276

EN

Taking social relations into consideration allows us to be mindful of the life-world and the social system. A social relation should be intended as an emergent phenomenon of a mutual act, with an autonomous connotation that goes beyond those who implement it. At the same time, it can be traced back to referential semantics, as it exists within a framework of symbolic meaning, and to structural semantics, because it is at the same time a resource and a constraint for the social system. If these are the general foundations of the relational theory of society, adding risk to this perspective as a descriptive model has some distinguishing features. For example, as a dimension of everyday life it is a “neutral category.” It is based on that “insecure security” whose results, positive or negative, will derive from the kind of balance established between “resources and challenges” or, as we claim in this paper, between “goals and means.”

3

Principles and mathematical modeling of biological pattern formation

88%

Deutsch A. , Dormann S.

Matematyka Stosowana : matematyka dla społeczeństwa

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2002

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tom Nr 3

16-38

EN

An overview of principles and mathematical models of biological pattern formation is presented. One can distinguish preformation, optimization, topological and self-organization principles. Combinations of such principles are responsible for shape and tissue formation, differentia-tion, regeneration, morphogenetic motion, celi division and even malignant patterns, e.g. in tumor growth. Mathematical modeling allows for a system-atic analysis of the pattern-formation potential of morphogenetic principles. Biological patterns are the result of complex interactions between a smaller or larger number of components, particularly molecules and cells. Depend-ing on the modeling perspective microscopic (from the individual compo-nent level) and macroscopic models (from the population perspective) are distinguished. The specific question directs the choice of the appropriate perspective. A selection of microscopic and macroscopic model types is in-troduced.

4

Involvement of S1/P1-like nucleases in a plant programmed cell death

88%

Krela R. , Lesniewicz K.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2015

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tom 96

|

nr 1

5

Morphogenesis and correction of planar rod constructions with a small amount of free nodes

88%

Skochko V.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2015

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tom 17

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nr 8

6

Reflexivity, Socialization, and Relations to the World: Theoretical and Practical Challenges

88%

Maccarini A. M.

Stan Rzeczy

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2017

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nr 1(12) The Relational Turn in Sociology: Implications for the Study of Society, Culture, and Persons

141-175

EN

This essay deals with reflexivity and socialization processes in late modernity. First, it is argued that within the societal frame of “unbound morphogenesis” socialization theory is most adequately articulated into a realist-morphogenetic approach, which conceives of socialization as a reflexive, concern-oriented, relational process. However, the so-called morphogenic society involves profound cultural change, impinging upon the idea of the self and its fundamental need to “shape a life.” When such changes are integrated within socialization theory, it becomes clear that different identity-building processes co-exist, including ones that would bring about deep transformations of human reflexivity and challenge its “regular” operation. A brief outline of such a challenge is provided, along the dimensions of personal ontology, time, and sociality. Finally, the need is indicated to develop Archer’s model further, and some provisional conclusions are drawn concerning the possible developmental paths of human personhood depending on these dynamic factors.

7

The Influence of Growth Regulators on the Productivity of Flax Plants

88%

Khodanitska O. , Shevchuk O. , Tkachuk O. , Kuryata V. , Polyvanyi S. , Matviichuk O. , Kryklyvyi R.

Ecological Engineering & Environmental Technology

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2023

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tom Vol. 24, iss. 5

163--169

EN

Contemporary agrobiology is aimed at solving the problem of sufficiently stable agricultural crop yield, given the principles of eco-friendly nature use and mandatory monitoring of anthropogenic load on agrocenoses. Hormonal regulation of physiological functions, including the use of preparations based on phytohormones and modifiers of their activity, is one of the topical directions for tackling the problem of plant productivity. The article presents the research results of the effect of the inhibitor of antigibberellin action – chlormequat chloride – and the stimulator based on treptoleum phytohormones on the processes of morphogenesis, the formation of the photosynthetic apparatus, and the yield of flax plants. The plant height is established to decrease under the action of chlormequat chloride, and increase under the influence of treptolem. Both preparations caused an increase in the flax stem diameter. When applying growth regulators, the number of leaves and their total surface area, duration of functioning increased, which generally contributed to the improvement of the crop structure and flax plants productivity. Determination of the content of residual amounts of drugs was carried out on samples of leaves and stems of flax, while the complete absence or traces of chlormequat chloride was noted.

8

Peculiarities of embryogenesis in Scardinius erythrophthalmus L.

88%

Korzelecka A. , Winnicki A.

Electronic Journal of Polish Agricultural Universities. Series Fisheries

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1998

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tom 01

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nr 1

EN

Morphomechanical changes appearing during embryonic development of Scardinius erythrophthalmus L. were followed. Upon complete egg hydration, the yolk together with the embryo was found to occupy about 30% of egg volume, the perivitelline space making up the remaining 70%. The embryonic disc, and the embryo later on, were always located laterally in the egg. As in many other cyprinids, the developing eggs of S. erythrophthalmus contain no strucutral lipids in the form of droplets. At the mid-point of embryogenesis, the yolk begins to divide; as a result, a vitellar diverticulum elongating as the development continues appears under the caudal part of the fast growing embryo. After hatching, the diverticulum is transformed into the posterior part of the body cavity. Until hatching, the S. erythrophtalmus embryos lack melanophores both in the skin and in the eyes.

9

Uwagi nad rozwojem przestrzenno-urbanistycznym Radomska

75%

Kulesza M. , Łódzki U.

Acta Universitatis Lodziensis. Folia Geographica Socio-Oeconomica

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2014

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nr 16

PL

W pracy przedstawiono etapy rozwoju przestrzennego Radomska na tle historii ośrodka, podkreślając w szczególności okresy osadniczo-morfologiczne, które dla tego rozwoju miały wpływ decydujący. Analizą objęto okres od czasów średniowiecza do chwili obecnej. Pod względem osadniczo-morfologicznym, proces przemian przestrzennych miasta można podzielić na trzy okresy: pierwszy – okres miasta rolniczego (do pocz. XIX w.), drugi – okres miasta przemysłowego (pocz. XIX w.–1945 r.) oraz trzeci – okres miasta po II wojnie światowej. Współczesne Radomsko jest miastem o złożonej strukturze przestrzenno-urbanistycznej, która powstała z połączenia wielu jednostek, różniących się od siebie często genetycznie, funkcjonalnie i fizjonomicznie. W strukturze tej wyróżnić można relikty z różnych okresów istnienia Radomska, które odzwierciedlają etapy jego rozwoju, zaczynając od średniowiecznego rynku ze śladami przedlokacyjnego placu targowego i przylegającymi do niego wąskimi uliczkami, poprzez elementy miasta kapitalistycznego w postaci zwartej zabudowy przyrynkowej, a kończąc na blokowiskach i osiedlach jednorodzinnych z okresu socjalizmu.

EN

The paper presents stages of Radomsko spatial development, placed on the background of history of the town, highlighting the settlement-morphological periods, which have a decisive impact on the town development. The analysis covers town’s history from the Middle Ages to the present. In terms of settlement-morphological process, town’s spatial transformations can be divided into three periods: first ‒ the agricultural town (until beginning of the nineteenth century), second ‒ the industrial town (beginning of the nineteenth century ‒ 1945) and the third ‒ town after World War II. Contemporary Radomsko is a town with a compound urban spatial layout structure, which is a combination of many elements, differing genetically, functionally and by physiognomy. In the spatial layout can be distinguished relics from different periods of the existence of Radomsko. They reflect the stages of its development, starting with the medieval market with traces of market square functioning before the location and the adjoining narrow streets, through the elements of the capitalist city in the forms of buildings surrounding the market, and finishing with large housing blocks and single- -family housing estates from the socialist times.

10

Morphology and morphogenesis of a Chinese population of the soil urostylid ciliate, Extraholosticha sylvatica (Foissner, 1982) Li et al., 2017 (Ciliophora, Hypotrichia)

75%

Li J. , Wen K. , Zhu E. , Wang J.

Acta Protozoologica

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2019

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tom 58

|

nr 4

11

Influence of Chlormequatchloride on Morphogenesis and Productivity of Cruciferous Plants

75%

Polyvanyi S. , Polyvana A. , Sakalova H. , Shevchuk O. , Khodanitska O. , Tkachuk O. , Matviichuk O. , Knyazuk O. , Stepanenko I. , Zavalnyuk O.

Journal of Ecological Engineering

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2022

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tom Vol. 23, nr 9

53--60

EN

At present, there are burning issues concerning waste utilization of the agro-industrial complex, rational usage of nature and transition to the use of environmentally friendly and low-waste technologies. One of the most forward-looking areas is the application of the principles of the so-called "green chemistry", in particular, the development of technological processes using renewable raw materials and chemicals, the chemicals with a short half-life and low cost while ensuring maximum efficiency. The article presents the results of antigiberrelic preparation effect, which is characterized by low dosage and half-life in soil from 3 to 43 days on productivity, growth processes, anatomical, morphological features and functioning of the leaf apparatus of white mustard plants and rapeseed. The research shows that CCC-750 reduced the height of mustard and rapeseed plants. Inhibition of growth processes of white mustard plants at the beginning of the flowering phase with an anti-gibberellic preparation led to increased stem branching, which, in its turn, resulted in an increase in the number and area of leaves throughout the growing season. Moreover, the use of quaternary ammonium salt on winter rape plants has led to a reduction in the number of leaves and leaf area in comparison to the control samples. The application of the retardant caused an increase in the productivity of the studied cultures due to the increase in the number of pods, the increase in the mass of thousands of seeds and the number of seeds in the pod.

12

Physiological adaptation of starved Tetrahymena pyriformis GL to colistin

75%

Szablewski L.

Acta Protozoologica

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1988

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tom 27

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nr 1

13

Nowa metoda modelowania morfogenezy otwornic

75%

Tyszka J. , Topa P. , Łabaj P. , Alda W.

Przegląd Geologiczny

|

2004

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tom Vol. 52, nr 1

80-83

EN

An overview of modeling methods of invertebrate shells as a background for modeling and visualization of mineral shells of foraminifera is presented. The recent authors propose more realistic methods of modeling. Our model introduces the moving reference approach to theoretical modeling of foraminiferal shells. This approach uses apertures as reference points, which move together with step-by-step growing chambers. Another important aspect of simulation is a random selection of parameters from the defined ranges of values. The resulted ``theoretical shells’’ closely mimic morphology and variability of recent and fossil foraminifera. The model is presented as an applet at http://www.icsr.agh.edu.pl/foraminifera . Future prospect includes an “emergent model”, gaining deeper insight into real morphogenetic processes.

14

Interaction between photoreceptors and BR signaling in Arabidopsis

75%

Zhu Z. X. , Zhu X. F. , Zhu Y. T. , Yao D. N. , Xuan Y. H.

Acta Biologica Cracoviensia. Series Botanica

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2014

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tom 56

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nr 2

15

Tectonic denudation concept of Lublin Upland morphogenesis using the example of Giełczew Heights

75%

Superson J. , Reder J. , Demczuk P.

Studia Geomorphologica Carpatho-Balcanica

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2019/2020

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tom Vol. 53/54

137--151

EN

Land surface development at Giełczew Heights (central part of the Lublin Upland), especially denudational forms, has interested researchers since the 1950s due to its representativeness of the entire region. First, two planation levels and one valley level were separated. At a later stage of the study, more than three stacked levels were identified. Previous studies have proven that the denudational relief of Giełczew Heights is dependent on disjunctive tectonics. Numerous fault zones formed during the Paleogene and Neogene, which divided territories into several tectonic blocks of different rank, size and absolute height. Notably, this observation suggests a multitude of planation surfaces. Additionally, tectonic movements in the Early Pleistocene formed Giełczew Heights as an independent geomorphological region and strengthened the late Pliocene collocation of river valleys that has survived into the modern era.

16

A morphogenetic description of Thigmokeronopsis stoecki Shao et al., 2008 (Ciliophora, Hypotricha) and a comparison with members of the family Pseudokeronopsidae

75%

Chen X. , Li L. , Hu X. , Shao C. , Al-Farraj A. , Al-Rasheid A. S.

Acta Protozoologica

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2013

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tom 52

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nr 2

17

The effect of trifluralin on post-in vitro morphogenesis of five genotypes of head cabbage (Brassica oleracea var. capitata)

75%

Abeyawardana O. A. J. , Viehmannova I. , Koudela M.

Journal of Horticultural Research

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2021

|

tom 29

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nr 1

18

Immature zygotic embryo cultures of Arabidopsis. A model system for molecular studies on morphogenic pathways induced in vitro

75%

Kraut M. , Wojcikowska B. , Ledwon A. , Gaj M. D.

Acta Biologica Cracoviensia. Series Botanica

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2011

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tom 53

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nr 2

EN

To understand the molecular mechanism controlling in vitro plant morphogenesis, a culture system enabling induction of alternative morphogenic pathways (somatic embryogenesis, SE; shoot organogenesis, ORG) in a well defined population of somatic cells is needed. Arabidopsis is the most useful model plant for genomic studies, but a system in which SE or ORG can be induced alternatively in the same type of explant has not been proposed. Immature zygotic embryos (IZEs) of Arabidopsis provide the only explants with embryogenic potential, and have been recommended for studying mechanisms of SE induced in vitro. This study was aimed at defining culture conditions promoting induction of alternative morphogenic pathways: shoot ORG in IZE explants. The established protocol involves pretreatment of IZE explants with liquid auxin-rich callus induction (CIM) medium, followed by subculture on solid cytokinin-rich shoot induction medium (SIM). The method enables efficient shoot induction in Columbia (Col-0) and Wassilewskija (Ws), genotypes commonly used in molecular studies. During 3 weeks of culture up to 90% of Col-0 and 70% of Ws explants regenerated shoots via an indirect morphogenic pathway. We analyzed the qRT-PCR expression patterns of the LEC (LEC1, LEC2 and FUS3) genes, the key regulators of Arabidopsis embryogenesis, in the IZE explants induced to promote shoot ORG. The sharp decline of LEC expression on SIM medium confirmed that culture of Arabidopsis IZE explants enables experimental manipulation of the morphogenic response of somatic cells. A scheme illustrating various in vitro morphogenic responses of IZEs in relation to hormonal treatment is presented.

19

Rola wód podziemnych w zasilaniu mokradeł w różnych warunkach geomorfologicznych

75%

Jóźwiak K. , Solovey T.

Przegląd Geologiczny

|

2019

|

tom Vol. 67, nr 11

906--913

EN

The aim of the article is to analyze the occurrence of hydrogenic habitats in relation to morphogenesis and local groundwater circulation systems. The study was conducted in 2017 on 61 wetlands throughout Poland. Most of the studied habitats were located in the Vistula and Warta glaciation areas. The analyzed hydrogenic habitats belonged mainly to four habitat types: telmatic organic marshes, alluvial mineral marshes, periodic moistlands and peatlands. Three small mountainous spring areas were also included in the analysis. The impact of hydrogeological conditions on the supply and contact of groundwater with the habitat was analyzed. The type of hydrological feeding of habitats was also verified. The classification of morphogenetic conditions was based on the Detailed Geological Map of Poland at a scale of 1:50 000. Based on morphogenetic units, the dominant habitat types in individual units were specified: river valleys, plain glacilacustrine, ice-marginal valleys, lake plains, upland, outwash plains. The occurrence of individual types of habitats against the background of local groundwater circulation systems was also characterized. For selected habitats, a performed analysis encompassed the impact of fluctuations in the groundwater table over many years on the possibilities of groundwater supply.

20

State-of-the-art in modelling of foraminiferal shells : searching for an emergent model

75%

Tyszka J. , Topa P. , Saczka K.

Studia Geologica Polonica

|

2005

|

tom Vol. 124

143-158

EN

Modelling of foraminiferal tests (shells) started from the fixed-reference models, which used fixed points or axes as coordinate systems. Simulated shells are limited to simple planispiral, trochospiral or uniserial shell patterns, stable throughout ontogeny. On the other hand, various groups of foraminifera change chamber arrangements during their growth. Modelling of more complex forms, with changing chamber arrangement patterns, requires apertures, which are essential for morphogenesis of foraminifera. The moving reference model has solved this requirement, including apertures as reference points. This approach gives morphogenetic priority to apertures and produces more realistic simulations. Nevertheless, these models are still not "deep" enough to reflect the complexity of foraminiferal shells. It is proposed to focus on morphogenesis of real foraminifera and go deeper into the processes responsible for chamber formation. Earlier studies have shown that the cytoskeleton plays a major role in shaping the chambers. A new emergent model should introduce intracellular dynamics during the chamber formation. Internal processes should rather mimic physical interactions and biochemical reactions than geometric transformations. The foraminiferal morpho- genesis ought to emerge spontaneously from simple rules and parameters, instead of being predefined in the form of geometric figures and their transformations. The Diffusion Limited Aggregation (DLA) model, presented here, tests such a new emergent approach.