地球外面的驛站     

Б.李雅普諾夫  鴻影 《科学大众》1955,(4)

新的天體 從地球上往外看,在太陽系裏好像有了一颗空前明亮的星星在閃灼發光。宇宙間的確是有這樣閃動着的奇怪的星星,它们一忽兒亮,一忽兒暗。這颗星也是:一忽兒像電焊的火花一樣光芒四射,一忽兒又黯淡下來,就像在給一個人發着秘密的電碼一樣。它在明亮的時候可以媲美那颗一早一晚用自己的光辉使遠處的太陽因而黯淡  相似文献   

把芯片植入癫痫病人的大脑     

kathyA.Svitil  张唯诚 《科学与生活》2002,(11):40-42

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废水处理中的纺织品     

M.Linke  郭建生 《技术创新》2003,(3):26-28

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Flies can use prior experience to improve visual cognitive abilities     

Modification of ongoing  future behaviors based on prior experience demonstrates the so-called "intelligence" in animals  even human beings.…… 《中国科学院院刊(英文版)》2007,21(3):138-138

Modification of ongoing and future behaviors based on prior experience demonstrates the so-called "intelligence" in animals and even human beings.  相似文献   

宇宙的構造     

В.А.希沙柯夫 《科学大众》1955,(4)

廣泛地展開自然科學中關於物質和宇宙的構造方面知識的宣傳,對於破除迷信、建立科學的宇宙觀起着巨大的作用。這種工作也是科學館、圖書館、文化宫、文化館(站)等宣傳機構中的經常任務之一。目前在我國,人们很需要這方面的知識,可是這種工作做得很不夠,特別是很不普通。形象化的展覽是容易收到效果的,然而這方面的資料尤其缺乏。  相似文献   

有用矿物的生成     

В.艾滋  小塔 《科学大众》1955,(1)

各种金属矿物——铁、铜、铝等和非金属矿物——食盐、钾盐、煤、石油和磷块岩等,所有这些巨大的财富都是在地球内部或地球表面上生成的。在地球表面上生成的矿物叫做沉积矿产;在地球内部深处生成的叫做深成矿产。流动的水——小溪和河流,冲击着河岸,从河岸上带走了石头、砾石、砂子和泥土的细粒,然後把它们沉积在河床、海底及湖底的平静的水中,生成由黏土和砂子构成的沉积岩的堆积。河流带入海洋及湖沼中的不仅是固体的细粒,同时还带入溶解的物质——盐类。在干燥及炎热的地带,海水猛列地蒸发着。这种蒸发的效力,在接连着一个狭小海峡  相似文献   

Insect-specific proteins identified     

With nearly one million classified  named species  the insecta clade is the most diverse group of higher organisms on earth in terms of category  behavior  physiology  genetics.…… 《中国科学院院刊(英文版)》2007,21(3):130-131

With nearly one million classified and named species, the insecta clade is the most diverse group of higher organisms on earth in terms of category, behavior, physiology and genetics.  相似文献   

79 new cyclopeptides discovered from 28 plants     

A key innovative research result has been achieved in systematic chemistry of plant cyclopeptides 《中国科学院院刊(英文版)》2007,21(4):200

A key innovative research result has been achieved in systematic chemistry of plant cyclopeptides (PCPs), a group of important plant metabolites, by a research team with the CAS Kunming Institute of Botany (KIB)in the capital of southwest China's Yunnan Province. According to a recent announcement released by the Institute, its chemists have brought to light 79 new PCPs.  相似文献   

建设师的汽车作品设计     

JessieScanlon JohnB.Carnet 《科技新时代》2004,(10):80-86

他的建筑作品采用独特的缠绕式结构．风格飘逸。如果他用这种理念来设计一种全新的概念车．那将会是什么样呢？  相似文献   

The information requirements and information-seeking behaviours of health and social care professionals providing care to children with health care needs: a pilot study     

Jackson R  Baird W  Davis-Reynolds L  Smith C  Blackburn S  Allsebrook J 《Health information and libraries journal》2007,24(2):95-102

OBJECTIVES: The objectives of this work were to identify the sources of information currently received, information-seeking behaviours, information requirements and preferences for future information provision amongst health and social care professionals providing care to children with health care needs. METHODS: Data were collected using a cross-sectional postal questionnaire survey. RESULTS: A wide range of information resources was reported as being available to professionals. However, a large proportion of respondents found it necessary to perform additional searches for information, suggesting that current resources were not satisfying their needs. The majority of professionals reported a preference for electronic formats, whilst a smaller proportion preferred hard copy materials. Participants promoted the use of informal networks as a means of support and exchange of information. CONCLUSION: Supplementing the information that is provided in electronic and hard copy formats, by enhancing informal networks, may be the most effective way of meeting the information needs of this group of professionals.  相似文献