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16432. Utváření vztahu rodičů k předčasně narozeným dětem

Creator:
Chlebounová, Michaela and Ivo Čermák
Format:
print
Type:
article, přehledové studie, model:article, and TEXT
Subject:
Psychologie, psychologie, psychology, předčasný porod, předčasně narozené dítě, rodičovství, utváření vztahu, otcovství, preterm labor, premature infants, parenting, relationship formation, fatherhood, 17, and 159.9
Language:
Czech
Description:
Rodiče předčasně narozených dětí vykazují ve srovnání s rodiči, jimž se narodilo dítě v termínu, vyšší míru stresu, vyšší potřebu pomoci během prvního roku po porodu, nižší schopnost adaptace, vysokou potřebu informací a lze u nich identifikovat také projevy posttraumatické stresové poruchy. To, jak se rodiče vyrovnávají s traumatem předčasného porodu, může ovlivnit přechod k rodičovství, přebírání rodičovských kompetencí, prospívání dítěte a samotný vztah k dítěti. Studie se zaměřuje na faktory, které mohou mít na utváření vztahu k dítěti vliv, tedy i na hledání možných způsobů prevence případných rizik. Vedle matek předčasně narozených dětí se zaměřuje také na otce, kterým je věnována samostatná kapitola. Krom jiného se ukazuje, že důležitou roli v utváření vztahu k dítěti hraje zdravotnický personál. Lepší povědomí o prožívání rodičů v tomto stresujícím období by mohlo vést k citlivějšímu přístupu k rodičům, saturaci jejich potřeb, a tím i předcházení některých obtíží ústících v opožďování nástupu rodičovské identity a narušený vztah k dítěti., Parents of premature born children show - in comparison with parents whose child was born in time limit - the higher level of stress, higher need for help during the first year after the birth, lower adaptation ability, high need for information, and also manifestations of post-traumatic stress disease can be identified in them. The way the parents cope with the trauma of premature birth can influence the transition to parenthood, taking over the parent competencies, prospering of the child, and the relation to child itself. The study focuses on factors that can influence the formation of parental relation to the child and thus also the looking for the possible ways of prevention of potential risks. Except of mothers of premature born children it focuses also on fathers whom is devoted a separated part of the study. It shows besides other things that the medical personnel play an important role in forming the relation to the child. The better awareness of parents’ experiencing in this stressing period could lead to more sensitive approach to parents, saturation of their needs and thus also prevention of some difficulties resulting in the delay of commencement of parental identity and disturbed relation to the child., Michaela Chlebounová, Ivo Čermák., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

16433. UV effects on chlorophylis and carotenoids of the haptophyceaen alga Pavlova

Creator:
Dohler, G. and Haas, F.T.
Format:
print
Type:
model:internalpart and TEXT
Subject:
p-carotene, UV-B radiation, UV-A radiation, high-performance liquid chromatography, flicoxanthin, diatoxanthin, and diadinoxanthin
Language:
Multiple languages
Description:
In the temperate haptophyceaen Pavlova luíheri (Droop) Green and Pavlova sp. (not yet estimated) the dominant pigments were chlorophyll (Chl) a (57 %), fucoxanthin (17 %) and diadinoxanthin (13 %); other estimated pigments were p-carotene, Chl c, cA-fucoxanthin and diatoxanthin. UV-A of 1.7 W m-2 had no effect on pigmentation of P. luíheri, but led to a reduction of the pigment contents of Pavlova sp. The damaging effect of a high UV-A dose (11.0 W m'^) was more pronounced than that of UV-B irradiance. The strongest reduction of pigment concentrations of both Pavlova species was observed after an exposure to UV-A (11.0 W m'^) plus UV-B (1.2 W m-2). Under this combined irradiation an increase of the diatoxanthin content and a decrease of the diadinoxanthin content was found.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

16434. UV-B induced production of MMP-2 and MMP-9 in human corneal cells

Creator:
Igor Kozák, Klisenbauer, D., and Tomáš Juhás
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Fyziologie člověka a srovnávací fyziologie, fyziologie, physiology, UV-B irradiation, human corneal epithelial cells, human corneal fibroblasts, MMP-2 production, MMP-9 production, acute photokeratitis, 14, and 612
Language:
English
Description:
The purpose of this study was to determine the production of metalloproteinases (MMP) 2 and 9 following UV-B irradiation in human corneal epithelial cells and fibroblasts. Epithelial cells and fibroblasts were separated from human donor corneas and exposed to UV-B lamp irradiation for 20, 40, 80 and 120 s. Media samples were collected at 8, 24, 48 and 72 h and gelatinase A and B production was assayed by the ELISA test. Statistical significance of production was assessed by the paired t-test. Increased production of MMP-2 was found in human corneal fibroblasts in response to UV-B irradiation. A statistically significant production of MMP-2 was not observed in human corneal epithelial cells following UV-B exposure. We did not detect any increase in MMP-9 after irradiation in either epithelial cells or fibroblasts. MMP-2 is produced by the corneal fibroblasts in the acute phase after UV-B irradiation. MMP-9 is not released in vitro following UV-B irradiation damage and therefore does not directly participate in the pathophysiology of acute photokeratitis., I. Kozák, D. Klisenbauer, T. Juhás., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

16435. UV-B radiation induced alterations in the bioenergetic processes of photosynthesis

Creator:
Murthy, S.D.S. and Rajagompal, S.
Format:
print
Type:
model:internalpart and TEXT
Subject:
electron transport, fluorescence, ozone, and photosystems
Language:
Multiple languages
Description:
The review deals with the comprehensive analysis of ultraviolet-B (UV-B) induced alterations in photosynthetic processes of higher plants and possible protection mechanisms. Between two photosystems, photosystem 2 (PS2) is main target for UV- B radiation stress. Depending on the mode of treatment, the oxidising side of PS2 and reaction centres are mainly affected by UV-B treatment. As response to UV-B stress plants develop some inherent adaptive mechanisms which decide the extent of the overall damage.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

16437. Úvahy nad pohybem a periodizací českého předbělohorského knihtisku

Creator:
Petr Voit
Format:
print, text, and regular print
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Polygrafie. Vydavatelství a knižní obchod, 15.-17. století, knihtisk, dějiny knihtisku, čtenářství, vydávání a distribuce knih, dějiny typografie, knihtiskaři, letterpress printing, history of letterpress printing, reading, publishing and bookselling, history of typography, letterpress printers, Česko, 12, and 655
Language:
Czech
Description:
Petr Voit.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

16440. Uvedenie do fyziky dreva

Creator:
Bahýl, Vladimír and Mészáros, Tibor
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
fyzika, physics, 6, and 53
Language:
Czech
Description:
Wood is a useful, durable but flexible, hard or soft (depending on its source and the way of processing) and and the only re-newable material widely used throughout human history. We are living with it. Let us enter wood through science and in particular physics. Wood grows and lives because of the existence of capillarity, according to the Hagen-Poiseuille‘s law. The acoustic performance of wood is based on the Newton‘s second and Hooke‘s laws. The interaction of wood and moisture is full of physics following laws, e. g. Fick‘s and Fourier‘s, Naviére-Sokes equation and so on. Without physics it is impossible to get an exact knowledge of the behavior of wood in the human surroundings, wood based construction, using the wood as fuel, making fire protection and so on. The study of wood is mainly based, of course, on numerous fundamental and applied scientific disciplines, but a kind of art and handcraat is in action there as well., Vladimír Bahýl, Tibor Mészáros., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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