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510392. Unusual motion of Amor

Creator:
Ziołkowski, K.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
space research, minor planet Amor, and motion of asteroids
Language:
Czech
Description:
Rrecise analysis of the orbit of minor planet (1221) Amor, based on all observations made In 1932-1980, shows that in 1956 there was an unexplained event in the motion of the asteroid. Possible interpretations of that fact as well as peculiarities in the long-term motion of Amor in 1650-2170 are discussed. The ephemeris of Amor for 1988 is presented.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

510394. Unwanted Silesia: Czech ''Silesian Identity'' in postwar Czechoslovakia (1945-1969)

Creator:
Knapík, Jiří and Jirásek, Zdeněk
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
historiography, North Moravian region, Silesia, and Petr Bezruč
Language:
English
Description:
The Czech ''Silesian identity'', obvious throughout the twentieth century, was based on a mixture of strong regional, even local, patriotism, which was determined by historical developments. This patriotism developed on the ethnically mixed territory of Czech Silesia (formerly Austrian Silesia). After the Second World War, this phenomenon was quickly revived, but unlike in the pre-war period, it took a clearly Czech national form. The territorial factor, by contrast, receded into the background. Behind this activity and new interpretation stood intellectual circles and institutions in Opava, some leading fi gures from Ostrava, and the Silesian Cultural Institute in Prague. In addition to cultural-educational activity, their efforts were concentratedon claiming some border areas of Polish and German Silesia as being historically Czech, and also on ensuring the distinctive administrative status of the territory of Silesia in Czechoslovakia, the seed of which they saw in the Ostrava branch of the Moravian National Committee (Zemský národní výbor) in Brno. During the Communist regime, according to the authors, the top state authorities showed an intentional lack of interest in the problems of Silesia when solving related economic and other questions. A consequence of this was a ''silencing of the offi cial sources'' about Silesia. In the 1950s, the ''Silesian-ness'' was condemned as a form of ''bourgeois nationalism'' and was identifi ed with the period of Czech-Polish national friction in the region. From the administrative point of view, Silesia was dissolved in the Ostrava area, later in the North Moravian Region, and was recalled practically only by artistic expressions of an ''Old Silesian-ness'', such as folklore and museum exhibitions. Silesian organizations and societies were, with few exceptions, dissolved or renamed and the newly established Silesian Research Institute in Opava had to orient its historical research chiefl y to the labour movement. The works of the poet Petr Bezruč (born Vladimír Vašek, 1867-1958) and his collection of verses, Slezské písně (Silesian Songs), presented a problem because of their questionable depiction of Silesian identity, and the publication of the complete collection led to disputes in cultural policy. The Ostrava-based arts and politics periodical Červený květ (Red Flower), which repeatedly included debates about regionalism, began to be published in the mid-1950s. At the end of the decade, however, the Communist Party launched a campaign against parochialism (lokálpatriotismus), which was refl ected also in the condemnation of publications seeking to exonerate the poems and ideas of Óndra Łysohorsky (born Ervín Goj, 1905-1989), who during the war promoted the theory of a ''Lach nation.'' In the 1960s, the local authorities and fi gures of Opava again began to emphasize the role of their town as a regional centre. During the Prague Spring of 1968, there were calls for the restoration of Silesian self-government, but that remained more or less limited to the Opava region, and consequently some ''Silesian'' cultural initiatives from this period were of greater importance.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

510396. Up-regulation of CD163 expression in subpopulations of blood monocytes after kidney allograft transplantation

Creator:
Čurnová, Lenka, Mezerová, Kristýna, Švachová, Veronika, Fialová, Martina, Novotný, Marek, Čečrdlová, Eva, Viklický, Ondřej, and Stříž, Ilja
Format:
počítač and online zdroj
Type:
model:article and TEXT
Subject:
transplantace ledvin, kidney transplantation, CD163, blood monocytes, subpopulations, acute rejection, CD14+CD16+, 14, and 612
Language:
English
Description:
M2 macrophages expressing CD163 are known to suppress immune responses but have been also found in biopsies of patients with chronic kidney allograft injury associated with interstitial fibrosis. The aim of our study was to evaluate the expression of CD163 in blood monocytes, precursors of tissue macrophages, in kidney allograft recipients with uncomplicated outcome (n=94) compared with those developing acute rejection (n=44). Blood samples were collected before the transplantation and at 1 week, 1 month and 1 year. The expression of CD163 increased during the first week after the transplantation not only in classical (CD14+CD16- ) but also in intermediate (CD14+CD16+) and nonclassical (CD14lowCD16+) monocytes in all patients regardless of their rejection status. In patients developing acute rejection, higher pre-transplant expression of CD163 on blood monocytes was found. In vitro experiments confirmed strong induction of membrane CD163 on monocytes together with CD206 (an alternative marker of M2 macrophages) in response to IL-10. We assume from our data that dramatic upregulation of CD163 by peripheral blood monocytes may have a pathophysiological role in early phases after kidney allograft transplantation and high pre-transplant expression of CD163 on blood monocytes might be involved in events leading to acute rejection., Lenka Čurnová, Kristýna Mezerová, Veronika Švachová, Martina Fialová, Marek Novotný, Eva Čečrdlová, Ondřej Viklický, Ilja Stříž., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

510397. Up-regulation of cyclic electron flow and down-regulation of linear electron flow in antisense-rca mutant rice

Creator:
Jin, S.-H., Wang, D., Zhu, F.-Y., Li, X.-Q., Sun, J.-W., and Jiang, D. A.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
chlorophyll fluorescence, CO2 assimilation rate, intercellular CO2 concentration, post-irradiation transient increase in chlorophyll fluorescence, and P700+ re-reduction
Language:
Multiple languages
Description:
To investigate how excess excitation energy is dissipated in a ribulose-1,5-bisphospate carboxylase/oxygenase activase antisense transgenic rice with net photosynthetic rate (PN) half of that of wild type parent, we measured the response curve of PN to intercellular CO2 concentration (Ci), electron transport rate (ETR), quantum yield of open photosystem 2 (PS2) reaction centres under irradiation (Fv'/Fm'), efficiency of total PS2 centres (ΦPS2), photochemical (qP) and non-photochemical quenching (NPQ), post-irradiation transient increase in chlorophyll (Chl) fluorescence (PITICF), and P700+ re-reduction. Carboxylation efficiency dependence on Ci, ETR at saturation irradiance, and Fv'/Fm', ΦPS2, and qP under the irradiation were significantly lower in the mutant. However, NPQ, energy-dependent quenching (qE), PITICF, and P700+ re-reduction were significantly higher in the mutant. Hence the mutant down-regulates linear ETR and stimulates cyclic electron flow around PS1, which may generate the ΔpH to support NPQ and qE for dissipation of excess excitation energy. and S.-H. Jin ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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