Work–family conflict in work groups: Social information processing, support, and demographic dissimilarity.

We used social information processing theory to examine the effect of work–family conflict (WFC) at the work group level on individuals’ experience of WFC. Consistent with hypotheses, results suggest that WFC at the work group level influences individual WFC over and above the shared work environment and job demands. It was also observed that work group support and demographic dissimilarity moderate this relationship. Moderator analyses suggest that work group social support buffers WFC for individuals but is also associated with a stronger effect of work group WFC on individuals’ WFC. Moreover, the work group effect on individuals’ WFC was shown to be stronger for individuals who were demographically dissimilar to the work group in terms of sex and number of dependents. The interpretations and implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

短、长期成本曲线关系的数学分析

用数学分析方法论证了经济学中短期成本曲线与长期成本曲线的关系，纠正了某些书中对此不严密甚至是错误的结论。     

Deletion and insertion of a 192-residue peptide in the active-site domain of glycosyl hydrolase family-2 beta-galactosidases

The monomeric multimetal-binding beta-galactosidase of Saccharopolyspora rectivirgula (srbg), a glycosyl hydrolase family-2 enzyme, has a unique sequence consisting of 192 amino acid residues with no similarity to known proteins. This 192-residue sequence (termed the "iota [iota] sequence") appears to be inserted into a sequence homologous to the active-site domain of the Escherichia coli lacZ enzyme (lacZbg). To assess the effects of the t sequence at specific sites of beta-galactosidase on the catalytic functioning and molecular properties of beta-galactosidase, deletion or insertion mutants of beta-galactosidases were constructed, expressed in LacZ- E. coli strains, and characterized: srbgdelta in which the iota sequence was deleted from srbg, and lacZbgI, in which the 192-residue iota sequence was inserted into the corresponding position (between Asp591 and Phe592) in the active-site domain of lacZbg. srbgdelta was a catalytically inactive, dimeric protein which retained multimetal-binding characteristics, suggesting that the iota sequence is very important for maintaining the structure necessary for the catalytic functioning and the monomeric structure of srbg but is not responsible for the unique metal ion requirements of srbg. On the other hand, lacZbgI existed as a mixture of a monomer, a tetramer, and higher multimers. The monomeric species was inactive, whereas the tetramer and other multimers were catalytically active (V(max )K(m) value, 25% of that of lacZbg) and highly specific for beta-D-galactoside. The tetrameric lacZbgI was activated by Mg2+ and Mn2+ with lowered metal affinities, and the stoichiometry of metal binding was unchanged from that of lacZbg. These results, along with the published stereo structure of lacZbg, suggest that, in lacZbgI, the inserted 192-residue iota peptide could fold independently of the lacZbg domains into a "sub-domain," lying distant from the active site and subunit interfaces.     

Relationships among organizational family support, job autonomy, perceived control, and employee well-being.

The authors analyzed data from the 2002 National Study of the Changing Workforce (N = 3,504) to investigate relationships among availability of formal organizational family support (family benefits and alternative schedules), job autonomy, informal organizational support (work-family culture, supervisor support, and coworker support), perceived control, and employee attitudes and well-being. Using hierarchical regression, the authors found that the availability of family benefits was associated with stress, life satisfaction, and turnover intentions, and the availability of alternative schedules was not related to any of the outcomes. Job autonomy and informal organizational support were associated with almost all the outcomes, including positive spillover. Perceived control mediated most of the relationships. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

基于以太网的智能家庭网络系统设计

随着物质生活水平的不断提高，家居网络技术的发展和应用正日益对整个社会产生巨大的影响。信息家电的出现和家庭网络技术的发展，促进了智能化、网络化家庭的实现。根据当前网络的发展现状，通过对家庭网络平台及其主网关的分析和研究，以太网为主干的智能家庭网络系统，将能实现对家庭设备的智能化管理与控制；再结合家庭网关和Inernet，必将为居民营造出现代化的家居生活环境。     

留守与出走的困境--从巴金的《家》与《寒夜》审视女性与家庭的关系

由于历史的原因，中国女性被束缚在家庭中，这就成了女性在生活和情感上对家庭的强烈依恋。随着女性解放的进行，对于家是留恋还是离开使女性在选择时陷入困境，巴金《家》与《寒夜》就体现了这种选择的尴尬，通过女性生存处境的描写也使我们看到了女性解放过程的艰难。     

基于Pro/E机床夹具三维标准件库的研究与实现

通过对目前现有标准件建库方法的分析对比,采用族表这一非编程建库工具,建立了Pro/E环境下机床夹具三维参数化标准件库.介绍了通过菜单索引文件提供的搜索和注释功能,及如何使这些功能对库内文件进行的有效管理和配置.该方法简单实用,对于实现提高机床夹具的设计水平和设计效率都是非常有效的.     

面向产品族的设计方法研究

面向产品族的设计是实现大规模定制的核心，而对设计方法的研究则是面向产品族设计的关键．本文对模块化的产品族设计方法进行了研究。在PFA方法的基础上，提出了利用构造机制进行多样性生成的基本方法，并利用其进行产品族设计结构描述．最后进行了实例设计一客车座椅的模块化设计．设计过程表明，该设计方法简单易行，适合于产品中各个功能组件相对独立、模块化程度比较高的产品族设计。     

家族企业社会化变迁模式研究

家族企业被认为是最具普遍意义的企业类型。论述了家族企业可持续经营的脆弱性,使家族企业一直被看作是一种落后的企业制度,从而使理论界忽视了对家族企业成长模式的研究。因此,系统而深入地研究家族企业成长路径及其制约因素,找出不同环境下的企业变迁模式和方法,实现中国家族企业可持续发展,避免从上演到谢幕"各领风骚三五年"的悲剧,这对中国经济来讲,具有重要的理论意义与现实意义。