新时期图书馆员应具有的素质

新时期图书馆作为知识和信息传播与交流的中心,将面临着一系列新情况、新挑战.同时,对图书馆员的素质提出了新的更高的要求.图书馆员要具有思想政治素质、职业道德素质、心理素质、业务素质.     

美国《化学文摘》的发展变化历程(上) --美国《化学文摘》创刊95周年评述

美国《化学文摘》 (“ChemicalAbstracts” ,CA)自 190 7年创刊至 2 0 0 1年已经走过了 95个年头 ,若以人的年龄段称呼而论 ,CA已经接近“期颐”之岁了。然而 ,由于世界科学技术 ,特别是高新技术在近一二十年内日新月异的发展 ,科技源文献的数量随之与日俱增 ,这就不断地给CA补足新的活力。加之CA编辑出版者———美国化学学会 (ACS)下属的化学文摘社 (CAS)的精心而科学的管理经营 ,并不断应用新技术新方法 ,使得 95岁高龄的CA在新旧世纪交替之际不但没有丝毫的“衰老”迹象 ,反而更加朝气蓬勃 ,预示着在新世纪还将继续蒸蒸日上。95…     

农田生态系统田间结构的优化配置——以辽河平原中部地区米麦间套作为例

连续2a采用4因子二次通用旋转组合设计，研究了辽河平原中部地区米麦间套作产量与田间结构因子中的玉米播期X1、玉米株距X2、玉米幅宽X3、和小麦幅宽X4关系。结果表明：作物产量Y与试验所设田间结构因子符合二次多项式回归方程；田间结构单因子，对产量作用大小依玉米幅宽、玉米播期、小麦幅宽对产量则呈极显著的正交互效应。玉米株距和幅宽〉玉米播期和小麦幅宽〉玉米播期和株距；利用频数分析法可分别确定米麦间套作不同产量水平田间结构的优化配置。指出了研究区域目前米麦间套作普遍存在的主要问题，根据该研究提出了解决问题的途径。     

Toward complementarity: Specificity and commonality in social-emotional development

What are the roles of specificity and commonality in social-emotional development? We begin by highlighting the conceptual context for this timely and timeless question and explain how responses to it can inform novel lines of theoretical and empirical inquiry, as well as sociocultural generalizability. Next, we describe how the selection of papers included in this special section contributes to our understanding of specificity and commonality in social-emotional development. We then explain how applying the complementarity principle to social-emotional development can inform a future research agenda in this domain. Lastly, we discuss how specificity and commonality fundamentally impact the way we conceptualize and implement interventions aimed at nurturing social-emotional development in every child.     

WTO视野下我国高校国际化范式的思考

通过对高等学校在新一轮高等教育国际化的浪潮中主体作用的揭示，分析了现时代我国高校国际化的WTO背景及“后发优势”，对我国高校国际化的战略选择与范式提出了思考，以期对我国高等学校的国际化进程有所帮助。     

The learn NC model

The vastness of the World Wide Web is both its attraction and its challenge. For people with a high-speed connection, plenty of time, and experience with technology, the Web can be a wonderful resource. Unfortunately, most teachers needing instructional resources for their classrooms do not have these assets. LEARN NC was created with this mainstream of teachers in mind, and to a great extent we have made the Web more accessible to them. Although we cannot give them more or faster Internet connections, we can help them make more efficient use of the time they have by making resources easy to use and providing training. We have been most successful when we have been able to “boil down” the content of the World Wide Web into a more manageable form. This requires a difficult balancing act: in order to provide as much good educational content as possible, we are constantly expanding our resources, but this growing content must be kept manageable and easy to access, or teachers will not be willing or able to use it. As a result, we must continually refine our existing resources. With these refinements, we believe—and our participating teachers concur—that our “one-stop-shopping” approach to educational technology is a helpful one for teachers and can provide a useful model for educators elsewhere     

Existence of a new force in colloidal systems —Hydrophobic attraction between macroscopic surfaces

Colloids play an important role in our modern lives. In this article, we briefly discuss various forces that are known to operate between colloidal particles and then take the reader through the discovery of a new, strong and long ranged force operating between hydrophobic particles/surfaces. Characteristics of the new force and some promising theories proposed in the literature to explain its origin are also discussed; the origin of the new force is not yet resolved, however.     

Inducible nitric oxide synthase expression is related to angiogenesis, bcl-2 and cell proliferation in hepatocellular carcinoma

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浅谈大学英语学习中的句子翻译

针对英文文化背景、中文功底以及英文中的特殊语言现象对翻译的影响进行剖析.通过丰富的例证和正误对比,理解其文化背景以及其中的某些特殊语言现象.     

Fulfilling the Promise of Professional Development

It is ironical that developments in the field of education call for teachers to differentiate instruction as a pre-requisite for effective learning,while teacher education and continuing professional development adhere to a one-size-fits-all philos- ophy. In general,professional development initiatives are part of'reform packages'with decisions about what,when,and