共查询到20条相似文献,搜索用时 15 毫秒
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采用文献资料法、调查访问法、逻辑分析法和归纳法,论述了我国普通高等学校体育课程师资队伍建设的现状,探讨了存在的问题,提出了对策与建议. 相似文献
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An investigation of the relationship between National Institutes of Health (NIH) funding and the quantity and nature of biomedical publications is reported for 120 U.S. medical school complexes. A correlation of 0.95 was found between the amount of NIH funds received and the number of biomedical publications from the medical schools. Medical school ranks based on bibliometric measures were found to correlate at the 0.80-0.90 level with ranks based on peer assessments of the schools. The characteristics of the medical school papers varied with the type of school. The average citation influence per paper increased with the publication size of the schools. This was true even when factors such as public versus private control, geographic region, average research level (from basic to clinical), and subject emphasis were controlled. The positive relationship between number of papers from a school and its citation influence holds within individual research levels and within subfields. 相似文献
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朱斌 《科学对社会的影响》1999,(4):17-21
战后美国科学技术的大发展美国领先世界的科学技术,是从二次世界大战后逐渐建立的。战后不久,为加强原子能的研究开发,1946年美国成立了原子能委员会,成为国内最大的科学实体。1950年筹建国家科学基金会,作为联邦政府专门资助基础研究的机构。1957年前苏... 相似文献
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将异枝竹属Metasasa W.T. Lin作为酸竹属Acidosasa C.D.Chu et C.S.Chao ex Keng f.的异名处
理。异枝竹Metasasa carinata W.T. Lin和白环异枝竹 Metasasa albo-farinosa W.T.Lin作为新组合名Aci-dosasa nanunica(McCl.)C.S.Chao et G.Y.Yang,comb.nov.的异名。 相似文献
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浅析美国动漫产业的文化与现状 总被引:3,自引:0,他引:3
现在劝漫产业是资金密集型、科技密集型、知识密集型和人才密集型的重要经济一文化产业,是21世纪开发潜力巨大的世界热门产业.英国是当今世界上最大最强的动漫产业国.本文对美国的动浸广业链的形成,动漫产业的游戏规则、动漫产业的职业精神、动漫的消费环境等方面进行了一定的剖析. 相似文献
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According to Wang and Xie, their recently published genus Trirostellum is
distinguished from its allied genera by a number of characteristics: (1) the stamens
with their filaments coherent into a central column; (2) the female flowers possessing
rudimentary stamens; (3) the ovary 3-celled, with one ovule in each cell; (4) the fruits
dehiscent, 3-rostrated at the apex; (5) the fruits possessing persistent perianth; (6)
the seeds tuberculate and winged. However, upon a careful comparison of Trirostell-
um yixingensis Z.P. Wang et Q. Z. Xie, the type species of Trirostellum with Gyno-
stemma pentaphyllum (Thunb.) Mak., the type species of Gynostemma Bl. and some
other species of Gynostemma as well,we have found that the representatives of the
above two genera are identical in most of the important diagnostic characteristics ex-
cept that the fruits of the former genus are dehiscent with three long beaks at the
apex, while the fruits of the latter genus are indehiscent with very short beaks.
Besides, results obtained from chromosome counting haove shown that the somatic
chromosome number of Trirostellum yixingensis is 2n=22, while that of Gynostemma
pentaphyllum is 2n=28.Yet these morphological and chromosomal differences seem
not sufficient for generic demarcation. We, therefore, suggest that Trirostellum bereduced to a sectional or subgeneric rank of Gynostemma Bl. 相似文献
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美国高科技园区中的产权制度及启示 总被引:3,自引:0,他引:3
考察美国高科技工业园的发展历史及风险投资的管理运行机制,可以发现其取得成功的基本前提就在于在美国已形成了一套与高新技术企业发展相适应的完善的产权运作机制。这种机制具有两个非常明显的特点:(1)是由风险投资家主导的私有产权结构;(2)是以知识产权为重要特征的产权制度。 相似文献
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美国联邦科研机构治理研究综述 总被引:1,自引:1,他引:0
通过对现有的关于美国联邦科研机构总体治理、专项问题治理(特别是技术转移的治理)等各类型研究机构治理状况的研究进行分析,发现目前国内的研究未能反映美国联邦科研机构发展变化的最新趋势;对美国联邦科研机构公私合营特征的研究还很缺乏;还未建立起分析美国联邦科研机构治理的有效框架,现有研究较为零散;美国联邦科研机构与中国科研机构的比较研究以及对中国的启示分析还不够深入。 相似文献