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一、前言尹赞勋教授是我国老一辈地质学家之一.他早年在北京大学哲学系读书,博学好问,别的系的名教授讲课,他也去旁听.他常常听地质系的几位名教授讲课,于是对地质学发生了兴趣.北京大学毕业后,他到法国里昂大学学习地质,着重攻读地层学和古生物学.他在里昂大学毕业所做的博士论文就是《法国加尔和黑 相似文献
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尹赞勋教授是我国著名的地质学家、地层学家和古生物学家。他从事科研、教学以及有关的行政工作多年,发表论著一百五十余篇。笔者随尹赞勋教授工作和学习,亲自聆听过他的教诲。今年二月正逢尹老八十大寿,愿作片断简介,谨表祝贺。攻取博士学位尹赞勋在北京大学学习四年,1923年哲学系肄业,同年本拟赴德国学经济学,途经法国时,得知名师在法,便留住法国,改学地质,进了里昂大学。当时摆在他面前的最大困难是不懂法语。于是,他在掌握了基本语法的基础上,一面继续听教师的正规讲课,另一面则利用课余时间,深入法国社会,多接触群众,或在大厅听学术报告,或上街头听演说。他还特意多观看演出,常 相似文献
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《云南植物研究》1981,(1)
我国著名的生态地植物学家和教育家朱彦丞教授,因病多方医治无效,不幸于一九八零年十二月五日在昆明逝世,享年六十八岁。朱彦丞教授是河北清苑人。一九三五年于北平中法大学毕业,后赴法留学,先后取得法国里昂大学自然科学硕士和法国国家自然科学博士学位。一九四六年,他怀着建设祖国的强烈愿望回国,在北平中法大学任生物系教授,并担任前北平研究院研究员兼云南工作站主任。一九四七年到云南任云南大学生物系教授,一九五一年开始,先后任云南大学生物系主任,云南大学教务长并兼任昆明植物研究所研究员等职。与此同时,他还担任了云南省科协副主席、中国植物学会副理事长兼生态地植物专业委员会主任及云南省植物学会理事长等。 相似文献
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云南大学生态地植物学研究室 《植物生态学报》1981,5(3):216-217
我们怀着十分沉痛的心情,深切悼念朱彦丞教授。朱彦丞教授是河北省保定市清苑县人,1912年生。1935年于北平中法大学毕业后赴法国留学深造,先后取得里昂大学自然科学硕士和法国国家自然科学博士学位。1941年开始,朱彦丞教授在法国蒙彼利埃国际地中海和高山地植物研究站(简称SIGMA)进行科学研究工作,发表 相似文献
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我们尊敬的老师和慈父般的长辈 ,吉林大学基础医学院教授 ,我国蛛形学研究的奠基人之一朱传典教授因病医治无效 ,于 2 0 0 3年 8月 2 1日凌晨 4时 3 0分在吉林省长春市不幸与世长辞 ,享年 78岁。朱传典教授 1 92 5年 1 2月 2 5日生于浙江杭州 ,1 949年 2月参加革命 ,1 950年南京大学生物学系毕业 ,同年在原第一军医大学参加工作 ,后转业地方留原白求恩医科大学任教 ,历任助教、讲师、副教授、教授。 1 990年退休后仍坚持从事蛛形学研究并指导学生。作为王凤振先生的助手和学生 ,朱传典教授对我国蛛形学研究的发展作出了重要的贡献。二十世纪… 相似文献
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洪水根 《分子细胞生物学报》2001,(4)
我国著名教育家、科学家,我国细胞生物学奠基人,知名的爱国人士和社会活动家,农工民主党中央咨监委员会常委,福建省第七届政协常委,厦门市第三至第八届政协副主席,前厦门大学校长汪德耀教授离开我们已经一周年了,但他一生追求进步、热爱祖国、热爱党,为祖国的教育和科学事业生命不止,奋斗不息的献身精神,却是永远铭记在我们心中。汪德耀教授1903年2月8日出生于江苏省灌云县,1921年在北平高等师范学院附属中学毕业后,赴法国里昂中法大学公费留学。1925年7月获法国国家博士学位。1931年回国后,先后在国立北平大学、国立 相似文献
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A.P. Tulloch 《Chemistry and physics of lipids》1979,25(3):225-235
Deuterated oleates have been synthesized by semihydrogenation of acetylenic intermediates. [11-2H2]Oleate was prepared by two-carbon chain extension of the C16 alcohol obtained from [1-2H2]octyl bromide and 7-octyn-1-ol. [8-2H2] and [7-2H2]oleates were both prepared from dimethyl suberate, tetradeutero intermediate C16 alcohols were synthesized from [1,8-2H4] and [2,7-2H4]octane diols by monobromination, conversion to deuterated 9-decyn-1-ols and reaction with octyl bromide. Oxidation gave [8-2H2]-9-octadecynoate and [2,7-2H2]-9-octadecynoate, after semihydrogenation of the latter, deuterons at C-2 were removed by exchange with aqueous alkali. [6-2H2] and [5-2H2]oleates were obtained from methyl 5-tetradecynoate, semihydrogenation, deuterium exchange at C-2 and two malonate extensions gave [6-2H2]oleate; reduction with lithium aluminum deuteride, two malonate extensions and semihydrogenation gave the [5-2H2] ester. [4-2H2] and [3-2H2]oleates were both obtained from methyl 7-cis-hexadecenoate, exchange of the α protons and chain extension gave the [4-2H2] ester and reduction with lithium aluminum deuteride and chain extension gave the [3-2H2] ester. 相似文献
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Glycopeptides obtained from human haptoglobin 2-1 and 2-2 总被引:1,自引:0,他引:1
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2-Acetamido-2-deoxy-d-glucose and 2-(benzyloxycarbonylamino)-2-deoxy-d-glucose were each treated with 2,2-dimethoxypropane in N,N-dimethylformamide containing a trace of p-toluenesulfonic acid. The new 5,6-O-isopropylidene derivatives 2-acetamido-2-deoxy-5,6-O-isopropylidene-d-glucofuranose, 2-acetamido-1,4-anhydro-2-deoxy-5,6-O-isopropylidene-d-arabino-hex-1-enitol, 2-acetamido-2-deoxy-3,4:-5,6-di-O-isopropylidene-aldehydo-d-glucose-dimethyl acetal, and 2-(benzyloxycarbonylamino)-2-deoxy-5,6-O-isopropylidene-d-glucofuranose were isolated. The formation of these furanoid acetals may be important in ascertaining the mechanism of this unique acetonation accompanied by glycosidation. 相似文献
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A.P. Tulloch 《Chemistry and physics of lipids》1979,23(1):69-76
Methyl [17-2H2]oleate was prepared by stepwise reduction from 17-oxooleate in 24% yield. Methyl [18-2H3], [16-2H2], [14-2H2] and [12-2H2] oleates were synthesized from appropriately deuterated octylbromides by conversion to deuterated 7-hexadecyn-1-ols and chain extention to deuterated stearolates followed by semihydrogenation; overall yields were about 17%. 相似文献
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The 2-(aminomethyl)-2-decarboxy analogs of prostaglandin F2 alpha (PGF2 alpha), (15S)-15-methyl-PGF2 alpha, 16-phenoxy-omega-tetranor-PGF2 alpha and 16,16-dimethyl-PGF2 alpha were synthesized. The amino analogs closely resemble the parent PGF2 alpha compounds as antifertility agents in the hamster. 相似文献
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Summary A more stable derivative of IS2-6 has been isolated, which had lost 54 bp of the 108 bp long insert characteristic of IS2-6. This new allele of IS2, IS2-61, segregates the remaining 54 bp to yield allele IS2-611. DNA sequence analysis shows that the segregation products of IS2-6 arise by recA-independent, illegitimate recombination at 9 bp long direct sequence repetitions. 相似文献
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S Ia Mel'nik A A Bakhmedova I V Iartseva M V Kochetkova M N Preobrazhenskaia 《Bioorganicheskaia khimiia》1987,13(7):934-939
Alkylation of 2,4-bis-O-(trimethylsilyl)uracil with hexafluoroacetone trifluoroacetylimine gave 5-(2-trifluoroacelylaminohexafluoroprop-2-yl)uracil, which was transformed by alkaline hydrolysis to 5-(2-aminohexafluoroprop-2-yl)uracil. The latter was glycosytated with 2-deoxy-3,5-di-O-p-toluoyl-alpha-D-ribofyranosyl chloride by means of various modifications of the silyl method leading to the predominant formation of beta-deoxynucleoside; after deacylation 1-(2-deoxy-beta-D-ribofuranosyl)-5-(2-aminohexafluoroprop-2-yl)ura cil was obtained. Interaction of silylated 5-(2-trifluoroacetylaminohexafluoroprop-2-yl)uracil with acylgalogenose gave anomeric O-substitutet deoxynucleosides, which were deblocked to give 5-(2-trifluoroacetylaminohexafluoroprop-2-yl)-2'-deoxyuridine and corresponding alpha-anomer. Alkaline hydrolysis of N-trifluoroacetyl group in both individual anomers produced 1-(2-deoxy-alpha-D-ribofuranosyl)-5-(2-aminohexafluoroprop-2-yl)ur acil and the abovementioned beta-anomer. Of all compounds synthesised only 1-(2-deoxy-beta-D-ribofuranosyl)-5-(2-aminohexafluoroprop-2-yl)ura cil has a moderate inhibitory effect on replication of vaccinia virus in vitro. 相似文献