1 0 0 0 OA 肉〓蓉の成分研究(第1報)
- 著者
- 小林 弘美 小松 順子
- 出版者
- 公益社団法人日本薬学会
- 雑誌
- 藥學雜誌 (ISSN:00316903)
- 巻号頁・発行日
- vol.103, no.5, pp.508-511, 1983-05-25
- 被引用文献数
- 5
Two glucosides were isolated from the whole plant of Cistanche salsa (C.A. MZY.) G. BECK and their structures were established as 8-hydroxygeraniol-1-β-D-glucopyranoside, a new monoterpene glucoside, and 8-epiloganic acid on the basis of chemical and spectral data.
- 著者
- 小林 弘 越智 尚子
- 出版者
- 社団法人日本動物学会
- 雑誌
- 動物学雑誌 (ISSN:00445118)
- 巻号頁・発行日
- vol.81, no.1, pp.67-71, 1972-01-15
- 被引用文献数
- 13
The ginbunas (Carassius auratus langsdorfii) captured in the Kanto district were exclusively females, and there was no report of capture of male fish. For understanding this curious phenomenon, comparative studies were made on the chromosomes of the ginbuna and F_1 hybrids derivatived from a cross between the ginbuna and the kinbuna (Carassius auratus subsp.) and between the ginbuna and the loach (Misgurnus anguillicaudatus). Three females of the ginbuna captured in the Kanto district were used for the present investigation. The eggs spawned by each of the females were divided into two groups; the eggs of one group were artificially inseminated with sperms of the kinbuna, and the eggs of the other group with sperms of the loach. All the larvae grown up from the two types of hybrid crosses were identical with the maternal ginbuna in their appearance. Chromosome preparations were made from kidney and gill cells with the usual air-drying technique, after pretreatment with colchicine and hypotonic solution. The results of chromosome analysis showed that the maternal ginbuna had 156 chromosomes, consisting of 17 pairs of metacentrics, 31 pairs of submetacentrics and 30 pairs of acrocentrics. The chromosomes of 14 offsprings by the hybrid crosses, so far examined, had the same chromosome number of 156. Comparing the karyotypes of the maternal ginbuna and their offsprings, we found a gross similarity in their chromosomes as far as the morphological analysis is concerned. In the present study we failed to examine the chromosomes of the paternal kinbuna and loach. However, it is generally accepted that the kinbuna has 100 chromosomes and the loach has 50 chromosomes in both sex. The most likely explanation for the present results would be that the production of the triploid offspring might be arisen by gynogenesis, as was already pointed out by Kobayasi et al. (1970) and Kobayasi (1971).
- 著者
- 笹木 圭子 小林 弘幸 恒川 昌美
- 出版者
- 一般社団法人 資源・素材学会
- 雑誌
- 資源と素材 (ISSN:09161740)
- 巻号頁・発行日
- vol.117, no.9, pp.747-752, 2001 (Released:2006-01-08)
- 参考文献数
- 10
- 被引用文献数
- 3 4
Aragonite-type of light calcium carbonate was synthesized by the successive reaction using calcined-hydrous scallop shells and calcined lime stones in the aqueous system with Mg2+ ions under the CO2 bubbling. In order to obtain the high aspect ratios of aragonite, the reaction temperature and concentrations of Ca2+ ions in the 2nd step were important. The aspect ratio of aragonite increased when the reaction temperature was higher in the 2nd step than in the 1st step of the successive reaction. When the smaller amounts of calcium source were added in the 2nd step than in the 1st step, and the reaction temperature was lower in the 2nd step than in the 1st step, large particles of aragonite were produced with no smooth surfaces. The successive reaction was useful to extend the variety of morphologies in aragonite.
- 著者
- 小林 弘和 中西 俊博 杉山 和彦 北野 正雄
- 出版者
- 一般社団法人電子情報通信学会
- 雑誌
- 電子情報通信学会技術研究報告. LQE, レーザ・量子エレクトロニクス (ISSN:09135685)
- 巻号頁・発行日
- vol.106, no.90, pp.17-21, 2006-05-26
光電子増倍管の光電面における2光子吸収を利用した光子対検出について紹介する。2光子吸収は時間的、空間的に接近した2光子に対して起こる現象であるため、光子対検出に用いることができる。また、2光子吸収による光電流の入射パワー依存性は、光子の統計的性質に依存し、コヒーレント光では2乗特性、時間相関を持った光子対では線形特性を示す。本稿では、コヒーレント光における光電流の入射パワー依存性の測定により、2乗特性を得たので、その結果を述べ、さらに時間相関光子対の生成実験の結果を述べる。