理学 >>> 数学 信息科学与系统科学 物理学 化学 天文学 地球科学总论 大气科学 地球物理学 地理学 地质学 水文学 海洋科学 生物学 科学技术史
搜索结果: 1-11 共查到理学 organism相关记录11条 . 查询时间(0.03 秒)
The most common organism in the oceans, and possibly on the entire planet, is a family of single-celled marine bacteria called SAR11. These drifting organisms look like tiny jelly beans and have evolv...
Life’s genetic code has only ever contained four natural bases. These bases pair up to form two “base pairs”—the rungs of the DNA ladder—and they have simply been rearranged to create bacteria and but...
The toxic dinoflagellate, Alexandrium fundyense, is a photosynthetic plankton — a microscopic organism floating in the ocean, unable to swim against a current.  New research by sci...
RIVERSIDE, Calif. — Scientists at the University of California, Riverside have discovered a fossil of a newly discovered organism from the “Ediacara Biota” — a group of organisms that occurred in the ...
It’s broadly understood that the world’s oceans play a crucial role in the global-scale cycling and exchange of carbon between Earth’s ecosystems and atmosphere. Now scientists at Scripps Institution ...
Developmental systems theory is an attempt to sum up the ideas of a research tradition in developmental psychobiology that goes back at least to Daniel Lehrman�s work in the 1950s. It yields a ...
A polymerase chain reaction (PCR)method with high sensitivity and specificity has been developed with a pair of oligonucleotide primers designed and synthesized according to the DNA sequence specific...
Mesocosm CO2 perturbation studies:from organism to community level。
摘要单细胞衣藻(Chlamydomonas)由于其生活周期简单,培养方法简便,易于分离得到系列的突变体,并已建立了分子遗传学研究技术与遗传分析系统,成为植物光合作用、鞭毛组装与功能、细胞周期及节律、细胞信号传导与光感受、细胞识别等重要生物学过程研究的模式生物体。本文对模式生物衣藻及其相关生物学途径的研究进展作一综述。 Abstract:The unicellular alga Chlamydom...
期刊信息 篇名 Recognition of an organism from fragments of its complete genome 语种 英文 撰写或编译 撰写 作者 V.V. Anh,K.S. Lau,Z.G. Yu 第一作者单位 刊物名称 Phys. Rev. E 页面 66 (2002) 031910 出版日期 2002年 9月 日 文章标识(ISSN) 相关项目 非线性科学...
An experiment of 10 weeks duration was carried out to study the influence of supplemental effective microorganism (EM) culture, yeast culture and enzymes on nutrient digestibility and gut microflora i...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...