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981.
Ph. van den Bosch de Aguilar 《Cellular and molecular life sciences : CMLS》1976,32(2):228-229
Summary The activity ofArtemia protocerebral median neurosecretory cells is stimulated when animals are grown in media whose tonicity is lower than that of sea weater. The substance liberated by these cells could regulate the tonicity of the internal medium.
Travail réalisé avec l'appui financier du FRFC (programme No 2.9010.75). 相似文献
Neurosécrétion et régulation hydroélectrolytique chezArtemia salina
Travail réalisé avec l'appui financier du FRFC (programme No 2.9010.75). 相似文献
982.
L. M. Schoonhoven E. A. M. Beerling J. W. Klijnstra Y. van Vugt 《Cellular and molecular life sciences : CMLS》1990,46(5):526-528
Summary Some butterfly species avoid egg-laying on plants which already bear conspecific eggs, and thus reduce food competition between their offspring. In twoPieris species the females produce in their accessory glands an oviposition-deterring pheromone (ODP), which is combined with the egg during oviposition. The ODP collected from eggs or accessory glands ofP. brassicae inhibits oviposition byP. rapae and vice versa. The ODP of either species stimulates tarsal receptors in both species. The antennae of the two pierids respond to the volatiles of their own and each other's eggs. Thus the ODPs of the two species may reduce not only intraspecific, but also interspecific food competition between their larvae. 相似文献
983.
M. G. M. Balemans E. M. Noordegraaf F. A. M. Bary M. F. van Berlo 《Cellular and molecular life sciences : CMLS》1978,34(7):887-888
Summary In order to obtain more information on the methylating capacity of the pineal gland, a method determining the formation of different 5-methoxyindoles in the pineal gland was developed. The method depends on measuring the incorporation of labelled methyl groups into the various hydroxyindoles present in the pineal gland, after incorporation of pineal tissue with labelled S-adenosyl methionine. Hydroxyindoles were not added to the incubation medium. After incubation thin-layer chromatography was performed with pineal tissue together with the incubation medium; the spots were scraped and counted.The authors wish to express their gratitude to Prof. Dr. J.C. van de Kamer and Dr F.C.G. van de Veerdonk for their stimulating interest in these studies. 相似文献
984.
Y-antigen killing by T cells of women is restricted by HLA. 总被引:24,自引:0,他引:24
985.
986.
D. A. Cozanitis Francien van de Pol H. van Wezel J. F. Crul 《Cellular and molecular life sciences : CMLS》1981,37(12):1326-1327
Summary The effect of galanthamine, an anticholinesterase having a tertiary ammonium group, on a constant infusion of pancuronium was studied in the rat tibialis anterior-sciatic nerve preparation. The results were compared with those previously obtained with neostigmine, pyridostigmine, and 4-aminopyridine. The antagonizing activity of galanthamine is similar to that of 4-aminopyridine and less than that of the other 2 anticholinesterases. The duration of galanthamine antagonism is similar to that of neostigmine and pyridostigmine but less than that of 4-aminopyridine. 相似文献
987.
988.
Alexander Bach 《Archive for History of Exact Sciences》1990,41(1):1-40
Communicated by
R. Stuewer 相似文献
989.
990.