俄罗斯进军科技产业

曾押注Skype和Facebook的硅谷风投家又开始考虑另一个心跳赌局——让俄罗斯多样化发展,摆脱对石油产业的依赖。俄罗斯总统德米特里．安．梅德韦杰夫已将经济多样化摆到其经济政策的核心位置,并开始在莫斯科郊区建造一个被称为俄罗斯硅谷的大型科技园。     

多媒体学习的认知理论基于计算机的多媒体学习研究

基于ERP的相关概念、理论和基本原理,分析制造业实施ERP的有关问题,阐述一些重要模块的事务流程及模块划分,并给出相关代码实现。以Java、ASP、Oracle9i为开发语言和开发工具,采用双层架构B/S的模式,构建一个针对制造企业的ERP体系完整框架并建立人力资源系统和制造系统的部分数据库,实现了人事管理和制造系统管理的基本功能。通过实例运行,达到了预期目标,并实现界面友好及网上交互操作,从而为制造企业对企业资源实现最优控制做出了有效的探索。     

Measuring living standards with proxy variables

Very few demographic surveys in developing countries have gathered information on household incomes or consumption expenditures. Researchers interested in living standards therefore have had little alternative but to rely on simple proxy indicators. The properties of these proxies have not been analyzed systematically. We ask what hypotheses can be tested using proxies, and compare these indicators with consumption expenditures per adult, our preferred measure of living standards. We find that the proxies employed in much demographic research are very weak predictors of consumption per adult. Nevertheless, hypothesis tests based on proxies are likely to be powerful enough to warrant consideration.     

The school-to-work transition of people with mental handicap in Hong Kong

The purpose of this study was to examine the school-to-work experience of people with mental handicap in Hong Kong. Fourteen young adults with mild mental handicap participated in in-depth interviews. An interview guide was utilized which included topics related to the participants' vocational preferences, work motivation and post-school placements. Data were analyzed according to a constant comparative method and content analysis. Three-quarters of the participants expressed job preferences. Three-quarters of the participants had taken a vocational training program unrelated to their job preferences. Half of the participants who had taken up open employment had not obtained their preferred jobs. None of the participants who had completed vocational training obtained job placements that matched their vocational training programs. All of the participants except five were not involved in making independent decisions regarding employment. The need to improve the quality of vocational services and empower people with mental handicap to take up self-determining roles are discussed.     

Validity of work-related assessments

Insufficient evidence of the validity of work-related assessments is frequently reported as a major concern in occupational rehabilitation. Despite this concern, and the continuing development of new and old assessments, no comprehensive evaluation of the evidence has been conducted. OBJECTIVES: The purpose of this study was to first determine the extent and quality of available evidence for the validity of work-related assessments, and then where sufficient evidence was available, determine the level of validity. STUDY DESIGN: This study examined available literature and sources in order to review the extent to which validity has been established for 28 work-related assessments. RESULTS: The levels of evidence and validity are presented for each assessment. Most work-related assessments have limited evidence of validity. Of those that had adequate evidence, validity ranged from poor to good. There was no instrument that demonstrated moderate to good validity in all areas. Very few work-related assessments were able to demonstrate adequate validity in more than one area, or with more than one study, even when contributory evidence was included. CONCLUSION: With this study clinicians will be able to examine their options with regard to the validity of the assessments they choose to use.     

Marriages and fertility among Turkish and Moroccan women in Belgium: results from census data

The patterns of family formation and fertility behavior of Turkish and Moroccan women in Belgium are changing rapidly. The census data (1991) indicate a fertility decline. The reasons are changes in the nuptiality patterns, contraceptive behavior, and migratory flows. The changes are not identical in both communities. Young cohorts postpone their marriage, but this is most prominent among Moroccan women. On the other hand, young Turkish women have a clear preference for smaller families. The changes also differentiate according to migrant "generation" and level of education. The changes are not restricted to Belgium but are also observed in the countries of origin.