全文获取类型
收费全文 | 7440篇 |
免费 | 168篇 |
国内免费 | 1篇 |
专业分类
管理学 | 995篇 |
民族学 | 33篇 |
人口学 | 764篇 |
丛书文集 | 32篇 |
理论方法论 | 673篇 |
综合类 | 92篇 |
社会学 | 3604篇 |
统计学 | 1416篇 |
出版年
2023年 | 41篇 |
2020年 | 99篇 |
2019年 | 143篇 |
2018年 | 168篇 |
2017年 | 253篇 |
2016年 | 180篇 |
2015年 | 124篇 |
2014年 | 161篇 |
2013年 | 1309篇 |
2012年 | 230篇 |
2011年 | 208篇 |
2010年 | 147篇 |
2009年 | 135篇 |
2008年 | 149篇 |
2007年 | 142篇 |
2006年 | 170篇 |
2005年 | 155篇 |
2004年 | 148篇 |
2003年 | 138篇 |
2002年 | 156篇 |
2001年 | 165篇 |
2000年 | 168篇 |
1999年 | 174篇 |
1998年 | 138篇 |
1997年 | 133篇 |
1996年 | 127篇 |
1995年 | 110篇 |
1994年 | 107篇 |
1993年 | 112篇 |
1992年 | 117篇 |
1991年 | 129篇 |
1990年 | 126篇 |
1989年 | 145篇 |
1988年 | 86篇 |
1987年 | 111篇 |
1986年 | 94篇 |
1985年 | 115篇 |
1984年 | 97篇 |
1983年 | 104篇 |
1982年 | 80篇 |
1981年 | 81篇 |
1980年 | 76篇 |
1979年 | 81篇 |
1978年 | 84篇 |
1977年 | 60篇 |
1976年 | 66篇 |
1975年 | 61篇 |
1974年 | 59篇 |
1973年 | 49篇 |
1971年 | 41篇 |
排序方式: 共有7609条查询结果,搜索用时 15 毫秒
31.
Luis F. B. Plascencia Gary P. Freeman Mark Setzler 《The International migration review》2003,37(1):5-23
State governments exercise significant powers to regulate the economic and social activities of resident aliens. We review the laws of the six leading states of immigrant settlement regulating access of noncitizens to 23 occupations, updating existing studies from 1946–77. Citizenship requirements for these occupations have plummeted, a change we attribute to federal court decisions, advisory opinions of state attorneys general, and state legislative and administrative action. There are numerous additional citizenship requirements in the statutes of the six states, although these appear to be poorly enforced. The authority of states to regulate their political communities is the most important remaining constitutionally valid basis of citizenship requirements. States define their political community broadly, leading to questionable exclusions of noncitizens from important activities. 相似文献
32.
Chris Dockins Robin R Jenkins Nicole Owens Nathalie B Simon Lanelle Bembenek Wiggins 《Risk analysis》2002,22(2):335-346
This article explores two problems analysts face in determining how to estimate values for children's health and safety risk reductions. The first addresses the question: Do willingness‐to‐pay estimates for health risk changes differ across children and adults and, if so, how? To answer this question, the article first examines the potential effects of age and risk preferences on willingness to pay. A summary of the literature reporting empirical evidence of differences between willingness to pay for adult health and safety risk reductions and willingness to pay for health and safety risk reductions in children is also provided. The second dimension of the problem is a more fundamental issue: Whose perspective is relevant when valuing children's health effects—society's, children's, adults‐as‐children, or parents'? Each perspective is considered, followed ultimately by the conclusion that adopting a parental perspective through an intrahousehold allocation model seems closest to meeting the needs of the estimation problem at hand. A policy example in which the choice of perspective affects the outcome of a regulatory benefit‐cost analysis rounds out the article and emphasizes the importance of perspective. 相似文献
33.
A New Approach to Social Assistance: Latin America's Experience with Conditional Cash Transfer Programmes 总被引:1,自引:0,他引:1
Laura B. Rawlings 《International social security review》2005,58(2-3):133-161
Conditional cash transfers are a departure from more traditional approaches to social assistance that represents an innovative and increasingly popular channel for the delivery of social services. Conditional cash transfers provide money to poor families contingent upon certain behaviour, usually investments in human capital such as sending children to school or bringing them to health centres on a regular basis. They seek both to address traditional short-term income support objectives and promote the longer-term accumulation of human capital by serving as a demand-side complement to the supply of health and education services. Evaluation results reveal that this innovative design has been quite successful in addressing many of the failures in delivering social assistance such as poor poverty targeting, disincentive effects and limited welfare impacts. There is clear evidence of success from the first generation of programmes in Brazil, Colombia, Mexico and Nicaragua in increasing enrolment rates, improving preventive healthcare and raising household consumption. Despite this promising evidence, many questions remain unanswered about conditional cash transfer programmes, including the replicability of their success under different 相似文献
34.
I. M. Endresen B. Ellertsen C. Endresen A. M. Hjelmen R. Matre H. Ursin 《Work and stress》1991,5(3):217-227
This study concerned the immunological correlates of stress and work. Self reported stress, emotional state, ego-strength, and defensiveness were examined in relation to measures of cellular immunity (T-cell response to Con A and number of T4 and T8 cells) and humoral immunity (concentrations of immunoglobulins and complement components in plasma) in a group of 96 Norwegian female bank employees. The analyses showed that workload, the stress factor with the highest group mean, was associated with number of T-cells, while strain due to body posture during work was related to concentrations of IgM and C3. Further, depression was significantly correlated with IgM concentration and T-cell number, and anxiety with C3 concentration. T-cell activity was the immunological parameter most consistently associated with psychological well-being, showing positive correlations with defensiveness and ego-strength and negative correlations with anxiety and depression. In conclusion, T-cell number and concentrations of IgM and C3 were sensitive to both work-related stress experience and emotional distress. Coping abilities, indicated by the MMPI Ego-strength scale and emotional distress, were reflected in T-cell activity; insufficient coping was associated with low T-cell activity. 相似文献
35.
36.
Graham B. Stead 《International Journal of Group Tensions》2002,31(1):79-102
Certain issues that are being debated in psychology in a post-apartheid South Africa are discussed, namely the development of professional organizations, indigenous healing and psychology, the psychometric movement, and forms of methodological inquiry. It is argued that South African psychology is striving to become more appropriate to the majority of its peoples, whether it be on the professional or research fronts. There is a desire to develop indigenous epistemologies and not to become excessively reliant on Euro-American epistemological traditions. Psychology is struggling to make mental health resources available to all South Africans. 相似文献
37.
Reed W. Larson B. Bradford Brown Jeylan T. Mortimer 《Journal of research on adolescence》2002,12(1):iii-viii
38.
Frances B. Somerman 《Journal of Social Distress and the Homeless》1993,2(3):177-192
Basic values, attitudes toward the homeless, and specific beliefs about a proposed facility were examined, along with the NIMBY (Not In My BackYard) phenomenon, to explore if, and to what degree, these factors affect community acceptance or rejection of a facility for the homeless. Previously designed Protestant ethic (PE) and Humanitarian-Egalitarian (HE) scales were used to measure two basic values (Katz & Hass, 1988). Scales to measure attitudes toward the homeless and beliefs about a planned facility were developed. As predicted, values, attitudes, and beliefs correlated with each other and were related to plan acceptance, so that HE, pro-homeless attitudes, and positive beliefs about the plan were positively related to acceptance, and PE, anti-homeless attitudes, and negative beliefs about the plan were positively related to rejection. Also as predicted, four proximity measures were all related to acceptance of the plan. 相似文献
39.
Developing a fair and widely accepted income definition presents one of the greatest challenges to tax reform. To arrive at a definition separate from the federal tax code, we surveyed 1200 Latter‐day Saints about their practice of tithing. Tithing is similar to a flat tax with no deductions, where individuals voluntarily contribute 10% of self‐defined income to the church. The results of our survey indicate that most respondents operate on a cash realization basis, which excludes savings and does not allow any deductions. Respondents' income concepts generally do not coincide with current tax laws or economists' views of comprehensive income. 相似文献
40.
Sustainability is usually defined as a requirement of each generation to manage its stocks of man-made and natural capital
such that the utility that it ensures itself can be shared by all future generations. Here we extend this definition to the
case where capital management does not have deterministic consequences. A characterization is offered where the sustainability
of one generation's behavior can be determined by comparing its utility with the utility of the succeeding generation, provided
that the latter behaves in a sustainable manner. The properties of the definition are investigated and illustrated.
Received: 26 April 1994/Accepted: 15 April 2002 相似文献