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B. L. van der Waerden 《Archive for History of Exact Sciences》1988,38(1):13-22
Summary In the astronomical treatise ryabhatya of ryabhata several verses are interpolated, namely all those verses in which either Brahman was mentioned or extremely large periods were introduced. The interpolator was known to AlBrn as ryabhata of Kusumapura, who belongs to the school of the elder ryabhata. The aim of the interpolator was to bring the teaching of the elder ryabhata into accordance with the revelation of Svayambh. Svayambh is another name for Brahm. 相似文献
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S. I. Alikhanian V. N. Krylov I. Zhazykov 《Cellular and molecular life sciences : CMLS》1971,27(4):468-469
rII T2L , rII T4B. rII T2L rII T4B. T2L rII T4B. 相似文献
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. . 相似文献
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Summary (–)--Fenchol, a compound occurring in plants but not heretofore reported to occur in an animal product, was isolated from volatiles released by adult male Mediterranean fruit flies,Ceratitis capitata Wiedemann, with the male's previously identified sex pheromones. It neither attracts females nor synergizes the pheromones, and its function remains unknown.The editors do not hold themselves responsible for the opinions expressed in the authors' brief reports. — Les auteurs sont seuls responsables des opinions exprimées dans ces brèves communications. — Für die Kurzmitteilungen ist ausschliesslich der Autor verantwortlich.—Per le brevi comunicazioni è responsabile solo l'autore. — . — Solo los autores son responsables de las opiniones expresadas en estas communicationes breves.Mention of a proprietary product in this paper does not constitute a recommendation or an endorsement of the product by the US Department of Agriculture.Acknowledgments. We thank C. Harding for assistance with extractions and fractionations, R.M. Waters for spectral analyses, M.S. Fujimoto and H. Higa for collecting the volatiles and conducting laboratory and cage bioassays, and T. Urago and S. Nakagawa for conducting the field tests. 相似文献
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or fi y G1 , . 相似文献
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P. C. Srivastava K. L. Nagpal M. M. Dhar 《Cellular and molecular life sciences : CMLS》1969,25(4):356-357
Zusammenfassung Uridylyl-(3–5)-adenosin und Uridylyl-(3-5)-ionosin wurden durch Umsetzung eines passenden 5-chloro-5-deoxy-2, 3-O-isopropylidene-Nukleosids mit Uridin-3-phosphat synthetisiert. 相似文献
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Zusammenfassung Die Synthese von 7-Hydroxy-5,6-dimethoxybenzofurano[3,2:3,4]coumarin aus 7,2-Dihydroxy-oder 7-Benzyloxy-2-hydroxy-4,5-dimethoxyisoflavon wird beschrieben. 相似文献
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C. F. Nadler L. W. Turner R. S. Hoffmann L. Deutsch 《Cellular and molecular life sciences : CMLS》1973,29(7):893-894
-Spermophilus brunneus . , 13 18 ,S. brunneus S. townsendii mollis (2n=38) , , ; ;S. brunneus . S. brunneus , Spermophilus.
Supported by National Science Foundation Grants No. GB32114X and No. GB 29131X, and the Sprague Foundation. We thankD. Pozin for technical assistance. 相似文献
Supported by National Science Foundation Grants No. GB32114X and No. GB 29131X, and the Sprague Foundation. We thankD. Pozin for technical assistance. 相似文献
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Citellus (s. str.) relictus, C. dauricus C. pygmaeus (2=36, NF=72). . (Colobotis) erythrogenys . fulvus -. . (Urocitellus) undulatus (2n=32, NF=64) . columbianus. Citellus, , Citellus, . , . 相似文献
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Vincenzo Vita 《Archive for History of Exact Sciences》1982,27(2):101-114
Summary In this note we claim that the two words
and
, which were used in Greece to indicate the geometrical point, had both been introduced in the scientific language in the first half of the IVth century B.C., and that they became popular independently of each other in two different cultural circles, those of philosophy and of mathematics, respectively.We propose therefore, in contrast to a conjecture by Heiberg, a new explanation for the predominance of
during the golden age of Greek mathematics and for the resurgence of
during the period of decadence.
Memoria presentata da A. Seidenberg 相似文献
Memoria presentata da A. Seidenberg 相似文献
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M. M. Shemyakin Yu. A. Ovchinnikov V. T. Ivanov I. D. Ryabova 《Cellular and molecular life sciences : CMLS》1967,23(5):326-326
, . , -Gly5,10- , Gly5,10- . 相似文献
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- . , , , . , . 相似文献
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R. I. Bersimbaev S. V. Argutinskaya R. I. Salganik 《Cellular and molecular life sciences : CMLS》1971,27(12):1389-1390
, 3',5'-, in vitro . , , 3',5'- HCl . 相似文献
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Riassunto È stata studiata con metodi istochimici la distribuzione della
5-3-idrossisteroide deidrogenasi (
5-3-HSDH) e delle 17-idrossisteroide deidrogenasi (17-HSDH), DPN- e TPN-dipendenti, nell'ovario di gallina ovulante. Mentre la
5-3-HSDH è presente in tutti i tessuti a secrezione steroide dell'ovario, la 17-HSDH è localizzata solo nelle cellule della granulosa. 相似文献
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