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Start Over Coverage 137-147

2. Perturbation of chloroplast development in maize by low growth temperature

Creator:
Bredenkamp, G. J., Nie, G. Y., and Baker, N. R.
Format:
print
Type:
model:internalpart and TEXT
Language:
Multiple languages
Description:
The chloroplast development in maize (Zea mays L.) is retarded at low growth temperatures. The composition of thylakoid membranes isolated from fiiliy-expanded leaves of plants grown at 17/14 or 14/12 “C (day/night) differed markedly from that of 25/22 "C-grown plants dne to a deficiency of chloroplast-encoded gene products. Appreciable net synthesis of thylakoid proteins in vivo was observed in a 3-h labelling period with p^SJ-methionine at 14/12 “C, but the ratio of accumuiated chloroplast- to nuclear-encoded products was lesser than at 25/22 °C. The protein synthesis by chloroplasts in vitro demonstrated that the accumulation of thylakoid membrane proteins was markedly temperature-dependent. Both the protein assembly into thylakoids and its subsequent breakdown took plače more rapidly at higher temperatures. Extensive differences in nuclear protein composition were observed between maize leaves grown at 14/12 and 25/22 "C, suggesting a possible role for nuclear factors in suppressing the expression of genes for chloroplast proteins at temperatures which inhibit thylakoid assembly.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Proper names and their role in social ontology

Creator:
Nagy, Marek
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
baptism, deontic power, onomastics, proper names, social ontology, křest, deontická moc, onomastika, vlastní jména, and sociální ontologie
Language:
Slovak
Description:
The article deals with an applicability of John Searle’s theory of social ontology to linguistic category of proper names. We suggest that in the context of Searle’s theory we can consider proper names to be a kind of social institution. By several examples from anthropolinguistic research and from the field of theoretical onomastics we try to show that proper names meet conditions specified by John Searle, in particular that - through different communities all over the world - they are ''holders'' of various types of deontic power. At the end of our article we shortly weigh the possibility that proper names can be regard as status indicators (in terms of Searle’s theory) too., Článek pojednává o aplikovatelnosti teorie sociální ontologie Johna Searle na jazykovou kategorii vlastních jmen. Navrhujeme, že v kontextu Searlovy teorie můžeme považovat vlastní jména za druh sociální instituce. Několik příkladů z antropolingvistického výzkumu az oblasti teoretické onomastiky se snažíme ukázat, že vlastní jména splňují podmínky stanovené Johnem Searlem, zejména, že - prostřednictvím různých komunit po celém světě - jsou ,,držiteli'' různých typů deontické moci . V závěru našeho článku stručně zvažujeme možnost, že vlastní jména mohou být považována za stavové indikátory (z hlediska Searlovy teorie)., and Marek Nagy
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public