Sino-US Joint Committee on High Energy Physics convenes in Beijing

The 27th Meeting of the Sino-U.S. Joint Committee on High Energy Physics took place on 17 and 18 November at the CAS Institute of High Energy Physics in Beijing. The U.S. delegation was led by Dr. Robin Staffin,associate director of the Office of Science for High Energy Physics, the U.S. Department of Energy, while the Chinese side was headed by Dr. ZHANG Jie, directorGeneral of the CAS Bureau of Basic Sciences.     

智能纺织品概述

智能纺织品作为一种新出现的纺织品，在纺织品的各个应用领域中都发挥着非常重要的作用。H．V．S．Murthy，Rahul G．Asia及Prakash B．Jaybhaye都谈到了智能纺织品这一特定领域的发展及应用前景。     

坦桑尼亚传统药物学的远景

植物界为现代医学和传统医学提供着许多有价值的药物。几个世纪来,围绕着对这些药物的认识,在传统医学中形成了一门完整的分支学科——草药学。1974年以来,坦桑尼亚的传统药物研究机构在草药医生的协助下已着手对草药进行科学分析。结果证实了其中许多草药的价值。     

军事研究与发展是非做不可的坏事吗?

一位军事记者考查了用以解决争端的武装冲突的一些根源——也就是可以推断将来还要持续下去的那些动机。这些动机迫使各国政府为保持战争武力和装备这些武力的研究资源。但是,在和平与协调方面是可能采取一些步骤的,以便制止军事研究,或者至少是减缓它对全球社会的影响。     

二十一世纪的预测研究

Spyros Makridakis是国际著名的预测学家。本文是他在第十一届国际预测会议上大会发言的要点,文中对现代预测科学的发展问题作了十分深刻有见解的阐述,这对我们认清预测的本质,预测在决策中的地位,以及今后预测研究的发展方向十分有益。本刊特此向大家推荐这篇文章。     

Mary Boole and curve stitching: a look into heaven

Mary Everest Boole had a lifelong interest in the unconscious mind, the psychology of learning, and how these relate to the teaching of mathematics and science. She recommended many practical exercises and teaching aids, one of which was the technique of curve stitching, which she had invented while still a child herself.     

金缕梅科银缕梅属与帕罗堤属的亲缘关系——核糖体DNA ITS序列证据

本文对金缕梅科弗特吉族(Molinadendron和Matudaea除外)的细胞核核糖体DNA ITS片段进行了序列分析，在此基础上对该族的演化关系、尤其是中国特有属银缕梅属的系统位置进行了最简约分支分析。基本结果如下：其一，蚊母族和狭义的弗特吉族均不形成自己的单系分支，因此，支持Endress的处理，即合并两族为广义的弗特吉族；其二，银缕梅属同帕罗堤属有着密切的亲缘关系，支持形态学和解剖学结论；其三，根据该片段核苷酸序列的演化速率推算出的银缕梅属和帕罗堤属间分化时间为晚中新世。此结论大致与化石记录相符。     

A multi-media strategy for a breastfeeding campaign in Colombia

The breast feeding campaign in Colombia is particularly aimed at pregnant and feeding mothers in both urban and rural areas. The objectives are to: 1) encourage breast feeding; 2) lengthen the period of breast feeding; 3) delay the introduction of other foods, and 4) discourage the use of bottle feeding. The pregnant and feeding mothers were reached through doctors, nurses, nutritionists and educational agents. Seminars were organized to train health sector personnel. Curricula of university courses were revised. Printed materials such as handbooks, flipcharts and promotional posters were used. Games such as "Breastfeeding Ladder" were played in health centers. The use of mass media (radio, television, and films) was found to be the most effective method. Promotional advertising was aired on TV and radio. Films were used in 2 ways: short 10-minute films were produced and slide projection was introduced preceding the main feature film. The slide shows informed the mothers of the advantages of breast feeding. Some legal reforms were also made as part of the campaign: the Ministry of Health passed a resolution encouraging breast feeding in all its medical centers; the use of milk substitutes was prohibited; and promotion and packaging of milk substitutes were regulated by a decree. The success of this campaign can be measured by the increase in requests for advice on breast feeding in medical centers; the organizing in hospitals of specific programs for the promotion of breast feeding, and the move by advertising agencies to start promoting simultaneously their products and maternal milk.     

看清自己的后脑勺

父亲在世时,希望我诚实做人。而我在儿时却爱耍小聪明。每每自以为得计时,后脑勺却被赏赐一栗凿,父亲说:“你小子再聪明,还能看清自己的后脑勺?”我不服气,白眼斜翻,几乎脱出眼眶,终究无济于事。后脑勺长在自己的身体上,是身体的一个部分。人活一世,于世间事物深究细研,于学术专业洞幽察微,于浮华名利鹰视狼顾。宏观的,能通过望远镜看到博大的宇宙和浩瀚的星系,巡天遥看一千河;微观的,借助显微镜,分子原子离子纤毫毕显,直至纳米技术显神通。可以说,目光所及,无所不至,无所不能。可是,到了自身这一块—看清自己,人却显得无可奈何也无能为力了…