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111.
林昙 《徐州工程学院学报(社会科学版)》2009,24(3):67-71
瞿秋白在俄国盘桓的两年,正值苏俄经济从“战时共产主义”转向“新经济政策”时期,他对“新经济政策”有较为全面地介绍、认识和分析,为此留下了大量关于这一政策实施依据、实施内容、实施效果的第一手资料,并对如何建设社会主义经济提出了自己的看法。认真梳理和分析这些资料有助于我们认清当前社会主义经济建设的发展方向。 相似文献
112.
供应链系统是一个复杂的系统,一方面由于时间延迟、信息不对称及反馈机制等,会产生牛鞭效应,另一方面供应链具有需求突增或骤减的脉冲特点,上述现象都可能导致供应链系统混沌,而现有的供应链模型仅考虑了“牛鞭效应”,并未考虑脉冲现象对供应链系统的影响。文章建立了考虑脉冲现象的供应链模型,分析了脉冲现象对供应链系统的影响,并给出了使供应链系统稳定的策略,讨论了参数扰动对该模型的影响,通过数值算例验证了稳定策略的有效性。研究发现:脉冲现象对供应链系统有着显著影响,但只要选取恰当的脉冲强度和脉冲时间间隔,供应链系统是可以稳定的。 相似文献
113.
本文提出了一种更新直接消耗系数的新方法,即将修正RAS法与修正交叉熵法的更新结果进行平均的组合更新法。因为电力数据具有相对准确与及时的特点,所以本文首先提出了结合电力数据的修正RAS法与修正交叉熵法,在此基础上建立了组合更新法的数学模型,然后分别以三个实验比较了修正RAS法、修正交叉熵法以及组合更新法的效果。结果表明本组合更新法的更新精度比前两种方法都高,它是一种合理有效的更新方法。 相似文献
114.
应用对应分析方法对重庆三峡库区农业经济进行实证研究.通过分析因子平面图中变量和样品之间的关系,对三峡库区农业经济区尝试进行基于产业结构调整的三个亚区域细分,表明重庆三峡库区应对农业经济结构战略性调整,推进重点产业突破,进而促进可持续发展。 相似文献
115.
Catalina Amuedo-Dorantes Susan L. Averett Cynthia A. Bansak 《Journal of population economics》2016,29(3):757-779
Immigration policy is at the forefront of US policy discussions, and the use of welfare benefits by immigrants has been hotly debated. In 1996, Congress enacted welfare reform legislation, which imposed strict restrictions on welfare eligibility for noncitizens. However, a number of states restored access to welfare benefits to immigrants that had been cut out in the federal welfare reform law. Using data from the Current Population Survey, we examine whether immigrant women adjusted their childbearing in response to changes in the generosity of welfare benefits at the state-level. We find that noncitizen women reduced their fertility in response to cutbacks imposed by the legislation. Our findings, which prove robust to a number of identification and robustness checks, underscore how immigrants respond to state-level policies and provide insight into the potential impacts of comprehensive immigration reform, particularly the components related to the path to citizenship and access to public benefits. 相似文献
116.
Susan L. Brown Wendy D. Manning Krista K. Payne 《Population research and policy review》2016,35(1):1-21
Research on family structure and child well-being rarely includes children in same-sex parent families, a notable omission since 28 % of female–female couple households contain children. Using the 2010–2013 pooled current population survey (CPS), we examined children’s economic well-being by family structure. These data were ideal for this study because they included a sizeable number of children in same-sex cohabiting mother families and the CPS measured both official and supplemental poverty, incorporating the cohabiting partner. Using the official poverty measure, children in same-sex cohabiting mother families were more likely to be poor than their counterparts in either different-sex cohabiting or married parent families. Using the supplemental poverty measure, children in same-sex mother families were no more likely to be poor than children in all other types of different-sex two-parent families. 相似文献
117.
Disability theorists have spent much time discussing how disability is defined. The theoretical roots for these debates reside in the medical, structural, and minority models of disability. The medical model views disability as equivalent to a functional impairment; the minority model sees a lack of equal rights as a primary impediment to social equality between able and disabled populations; and the structural model looks to environmental factors as the cause of disability. While debates over how to define disability are informative, there is currently an insufficient amount of empirical research looking at how people come to identify themselves as having a disability. Rather than focus on how disability is (or should be) defined, herein we look at how disability identities are constructed as people search for work. We show that people's interactions with employers and employment agencies have important influences on how disability identities are constructed. We borrow from the “doing gender” and “racial formations” paradigms to introduce an interactive approach to looking at how disability identities are constructed. We introduce the concept of disability formation to highlight how disability identities are continually negotiated through interactions with employment agencies and employers. Our findings are based on focus groups with 58 people who self‐identified as having a disability and were working or searching for work. 相似文献
118.
Research on gender and workplace stratification has made clear that persistent employment, wage, and mobility gaps exist, and that discrimination at organizational and interactional levels is playing a role. Few studies, however, have been able to directly capture processes involved. In this article, we draw on unique qualitative and quantitative data pertaining to verified cases of workplace sex and race discrimination (1988 to 2003), and analyze the discriminatory experiences of African-American and white women across various occupational statuses. Notable are high levels of discriminatory firing for both groups, but higher instances of race-based promotional discrimination for black women—a pattern partially linked to their disparate concentration in sex-segregated workplaces and in positions of lower occupational prestige. Our qualitative immersion into case materials reveals influential mechanisms and employer justifications, unique manifestations of differential treatment on the job, and the use of "soft skill" criteria in gatekeeper decision making. We conclude by discussing important dimensions of workplace discrimination for women, variations by social class and race status, and how complexities of status matter for what women experience and gatekeeper behavior. 相似文献
119.
Shalhevet Attar-Schwartz Jo-Pei Tan Ann Buchanan 《Children and youth services review》2009,31(9):1057-1066
There is limited research on adolescent–grandparent relationships, especially from the adolescent perspective and on large-scale samples. The study examined the associations between the adolescent–grandparent relationship (i.e., importance of, emotional closeness to, and respect for grandparents' views) and the characteristics of the adolescent, grandparent, and parent–grandparent relationship, as well as the interactions between several of these factors. It was based on a representative sample of 1478 students aged 11–16 from England and Wales who completed a structured questionnaire. Results supported the position that grandparents are a significant factor in the lives of adolescents. Findings of hierarchical regression analyses showed that more frequent contact, greater grandparent involvement, and better parent–grandparent relationships predicted adolescents' reports on higher levels of emotional closeness to, importance of, and respect for their closest grandparent's views. The interactions consistently emphasized the role of parents as gatekeepers of intergenerational exchange. 相似文献
120.
Judith A. Hall Susan A. Andrzejewski Jennelle E. Yopchick 《Journal of Nonverbal Behavior》2009,33(3):149-180
This meta-analysis examines how interpersonal sensitivity (IS), defined as accurate judgment or recall of others’ behavior
or appearance, is related to psychosocial characteristics of the perceiver, defined as personality traits, social and emotional
functioning, life experiences, values, attitudes, and self-concept. For 215 independent studies reported in 96 published sources,
higher IS was generally associated with favorable or adaptive psychosocial functioning. Significant mean correlations were
found for 27 of the 40 categories of psychosocial variables; these categories covered many different personality traits, indicators
of mental health, and social and work-related competencies. Moreover, many additional studies that fell outside these conceptual
categories also showed significant positive relations between IS and numerous other psychosocial variables. Taken together,
the results support the construct validity of IS tests and demonstrate that IS is associated with many important aspects of
personal and social functioning.
相似文献
Judith A. HallEmail: |