浇铸一种新的人性

在一项伟大的事业中,我们每一个人都是自己的天使。为了生存,我们需要同心协力,将人类所有的认知融会贯通为一个整体:我们必须努力将各种各样的知识糅合在一起;必须将各种各样的语言汇聚成一种巨大而清新的交响;必须将各种各样的人性投入熔炉以浇铸出一种新的人性。请记住,我们的需要并非是任何私人的需要——并非是我们之中任何一个个人的需     

水-电动力与保护荒原

无论在发展中国家,还是在发达国家,国家所需要的设施,如产生水电动力的大型水坝,正在引起土地使用方面的论战。这篇报道介绍了马来西亚和塔斯马尼亚的论战是怎样爆发的,以及在这两次论战中,公众利益团体如何做了大量的工作,对结局产生了决定性的影响。作者指出,政府不仅需要从经济上而且需要从环境质量和社会福利上考虑这些项目。     

Language problems in children with learning disabilities: do they interfere with maternal communication?

In this study, parent-child interaction in two carefully matched subgroups-school-age boys with learning disabilities (LD) who showed a discrepancy between their verbal IQ and performance IQ and had more extensive difficulties in higher-level language abilities (VIQ < PIQ, n = 8) and boys with LD who did not manifest a discrepancy between verbal IQ and performance IQ (VIQ = PIQ, n = 8), were investigated. The effects of the child's language problems on child task performance and on the quality of maternal communication were analyzed in a mother-child problem solving task. Children in the VIQ < PIQ group were found to be less successful on the task than children in the VIQ = PIQ group, and their mothers exhibited lower communication clarity in their instructions than the mothers of the children in the VIQ = PIQ group. An interesting interaction effect was found for communication deviances. For mothers in the VIQ < PIQ group the extent of deficient communication increased from the monologue to the dialogue situation, whereas communication deviances decreased for mothers in the VIQ = PIQ group. Three possible models are discussed in light of the differences between the subgroups.     

金色的海

~~金色的海@H.W.Longfellow @康宁     

一个新概念：地域网

职业学校地区网的概念是传统地形成的。现在应当从发展市场经济的角度看待职业学校网络分布及学校管理结构的瓿。出现了地域市场－劳务市场和教育服务市场－这一概念。本讨论了建立职业教育“地域网”的一些问题。     

Physicochemical characteristics of various milk samples available in Pakistan

We report physicochemical characteristics of various kinds of liquid milk commercially available in Pakistan in comparison with those of fresh natural milk from animals. Milk samples were collected from local markets at Peshawar, Pakistan,and analyzed for their physical features, including moisture, total solids, specific gravity, conductivity, viscosity and titratable acidity (lactic acid equivalent), and chemical components and macro-minerals, including total protein, casein, lactose, ash and minerals (Na, K and Mg). These items were compared with the physicochemical characteristics of the fresh natural milk samples from buffalo, cow and goat. The results were also compared with reported nutritional quality of milk from various countries and World Health Organization (WHO) standards. We found that all the physical features and chemical components of commercially available milk in Pakistan markets meet WHO's requirements, except for Na, K, Ca and Mg, which are below the standards.     

苏联高等学校的教学原则

苏联高等学校教育学的任务在于:为了适应社会主义国家的要求在考虑科学、技术最新成就的基础上制定出高等学校里教学与教育工作的最有效的方法、方式和手段。高等学校教研室的教学与教学法工作是建立在各门课程的一定教学规律性的基础上,建立在高等学校的教学、教育原则的基础上的。高等学校的教师应该是本行科学知识领域里的专家,同时应该也是清楚了解高等学校教育学里的统一教学原则和善于运用这些原则的人。     

Effects of medium composition on the production of plasmid DNA vector potentially for human gene therapy

INTRODUCTION The difficulties associated with large-scaleproduction of biotherapeutics provide a constantchallenge to the biotechnology industry. FDA hadadded “therapeutic DNA plasmid vectors” to the listof well-characterized biotechnology product (DoHHs,1996), and gene therapy has moved rapidly fromlaboratory scale to clinical trials. It is urgent to de-velop new protocols to obtain high-quality plasmidswith high yields and minimal or no contamination ofRNA and chromosomal D…