A measure of positive and negative affect for children: Scale development and preliminary validation.

A child version of the Positive and Negative Affect Schedule (PANAS; D. Watson et al, see record 1988-31508-001), the PANAS-C, was developed using students in Grades 4–8 (N?=?707). Item selection was based on psychometric and theoretical grounds. The resulting Negative Affect (NA) and Positive Affect (PA) scales demonstrated good convergent and discriminant validity with existing self-report measures of childhood anxiety and depression; the PANAS-C performed much like its adult namesake. Overall, the PANAS-C, like the adult PANAS, is a brief, useful measure that can be used to differentiate anxiety from depression in youngsters. As such, this instrument addresses the shortcomings of existing measures of childhood anxiety and depression. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

身份管理三步曲

如今,身份认证已经成为开启电子商务的一把钥匙。在网络这个虚拟世界中,每一笔交易都会涉及不同身份的人:员工、企业合作伙伴和客户,因此,有效的身份管理就成了其中必不可少的一环。     

适用于便携和消费电子产品的新型超低功耗差分信号接口技术

消费电子和通信产业正见证着I／O解决方案从并行到高速串行的转变，能够降低成本，简化设计，并具备可延展性，能满足全新带宽的要求。这类接口I／O技术的市场潜力巨大，包括移动电话、DVD—RW和高清晰度LCD电视机，而低功耗、低电磁干扰（EMI）和高数据吞吐量在这些应用中极为重要。因此，业界一直致力于设计和开发这些串行I／O，以低功耗提供高速的数据速率，并且能改善EMI性能。近年发表的文章许多都说明在串行接口中采用差分信号技术取代单端技术的优点，然而，关于在信号传输层面上推动这个转变的隐藏力量却鲜有谈及。     

News: Dioxin assessment revisions unlikely to change conclusions

Government.     

News: New Jersey pilot program eases permit path for companies that cut toxics

Government.     

News: Commission report to foucs on real-world needs of risk managers

Government.     

News: EPA drops 16-year PCB import ban

Society.     

News: EPA wraps up two-year permit system review

Government.     

News: Poll finds environment ranks high with voters

Politics.     

Role of white matter lesions, cerebrel atrophy, and APOE on cognition in older persons with and without dementia: The Cache County, Utah, study of memory and aging.

Neuropsychological, qualitative, and quantitative magnetic resonance imaging findings were examined in subjects with Alzheimer's disease (AD), non-AD dementia or mixed neuropsychiatric disorder, subjects characterized as mild/ambiguous, and controls, all with known apolipoprotein E (APOE) genotype. Neuropsychological tasks included an expanded Consortium to Establish a Registry for Alzheimer's Disease (J. T. Tschanz et al., 2000; K. A. Welsh, J. M. Hoffman, N. L. Earl, & M. W. Hanson 1994) battery and the Mini-Mental Status Examination (M. F. Folstein, S. E. Folstein, & P. R. McHugh, 1975). Periventricular white matter lesions were the most clinically salient, and generalized measures of cerebral atrophy were the most significant quantitative indicators. APOE genotype was unrelated to imaging or neuropsychological performance. Neuropsychological relationships with neuroimaging findings depend on the quantitative method used. (PsycINFO Database Record (c) 2010 APA, all rights reserved)