全文获取类型
收费全文 | 9368篇 |
免费 | 157篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1275篇 |
民族学 | 42篇 |
人才学 | 2篇 |
人口学 | 902篇 |
丛书文集 | 46篇 |
理论方法论 | 842篇 |
综合类 | 111篇 |
社会学 | 4672篇 |
统计学 | 1634篇 |
出版年
2023年 | 49篇 |
2020年 | 129篇 |
2019年 | 178篇 |
2018年 | 209篇 |
2017年 | 311篇 |
2016年 | 217篇 |
2015年 | 155篇 |
2014年 | 204篇 |
2013年 | 1618篇 |
2012年 | 275篇 |
2011年 | 268篇 |
2010年 | 200篇 |
2009年 | 190篇 |
2008年 | 207篇 |
2007年 | 198篇 |
2006年 | 226篇 |
2005年 | 203篇 |
2004年 | 208篇 |
2003年 | 177篇 |
2002年 | 216篇 |
2001年 | 197篇 |
2000年 | 213篇 |
1999年 | 217篇 |
1998年 | 173篇 |
1997年 | 167篇 |
1996年 | 158篇 |
1995年 | 133篇 |
1994年 | 133篇 |
1993年 | 136篇 |
1992年 | 145篇 |
1991年 | 154篇 |
1990年 | 157篇 |
1989年 | 163篇 |
1988年 | 111篇 |
1987年 | 130篇 |
1986年 | 122篇 |
1985年 | 132篇 |
1984年 | 115篇 |
1983年 | 136篇 |
1982年 | 96篇 |
1981年 | 103篇 |
1980年 | 93篇 |
1979年 | 103篇 |
1978年 | 97篇 |
1977年 | 75篇 |
1976年 | 85篇 |
1975年 | 77篇 |
1974年 | 70篇 |
1973年 | 55篇 |
1971年 | 46篇 |
排序方式: 共有9526条查询结果,搜索用时 15 毫秒
31.
Reed W. Larson B. Bradford Brown Jeylan T. Mortimer 《Journal of research on adolescence》2002,12(1):iii-viii
32.
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
33.
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
34.
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
35.
B.S. Chimni 《International migration (Geneva, Switzerland)》2002,40(5):75-94
A fundamental problem that confronts the European Union today is how it can maintain its commitment to the institution of asylum while checking irregular migration and the abuse of its asylum system. In order to explore a response to this dilemma the paper addresses the following questions: what role can relief and aid policies play in influencing migration patterns? What should be the appropriate approach to the granting of relief and aid to developing countries of first asylum? Should it be viewed as a part of the larger problem of development or be treated as a distinct issue? What kind of a relief/aid model will help refugees return to post–conflict societies and stop the conflict from reproducing itself? The paper examines two different approaches to address these questions: the alliance–containment approach and the distributive–developmental approach. It also looks at some empirical evidence, which reveals that at present it is a conservative alliance–containment approach that informs EU relief and aid practices. This approach, however, does not help achieve the stated objective of checking abuse of asylum and migration procedures while sustaining a commitment to a liberal asylum regime. The paper goes on to identify the gaps in EU policy and the lessons that can be drawn. It concludes by looking at different policy alternatives and suggesting the adoption of a reformist distributive–developmental model. The implementation of this model holds out the hope of reverting to a more liberal asylum regime while controlling irregular migration and “bogus” asylum seekers, for the reformist distributive developmental model takes a more long–term view of migration trends and also seeks to address the growing North–South divide. 相似文献
36.
One of the key features of Vietnamese family organization is patrilocality—the preference of married couples to coreside with the husband's parents. With data drawn from a retrospective survey of persons in 1,855 households in the largest province in the Red River Delta in northern Vietnam, we found that more than 75% of married respondents reported having lived with the grooms' family after marriage. The proportion of newly married couples that follow the patrilocal custom appears to have increased in recent decades, although the average duration of coresidence has declined. Some aspects of modernization, especially nonagricultural occupations and later age at marriage, contribute to a lower incidence of intergenerational coresidence, but the underlying cultural preference to live with the grooms' parents immediately after marriage appears to have become stronger in Vietnam. In contrast to some features of traditional family life that conflict with modernity, intergenerational coresidence can be quite functional in modernizing societies. 相似文献
37.
The small sample performance of least median of squares, reweighted least squares, least squares, least absolute deviations, and three partially adaptive estimators are compared using Monte Carlo simulations. Two data problems are addressed in the paper: (1) data generated from non-normal error distributions and (2) contaminated data. Breakdown plots are used to investigate the sensitivity of partially adaptive estimators to data contamination relative to RLS. One partially adaptive estimator performs especially well when the errors are skewed, while another partially adaptive estimator and RLS perform particularly well when the errors are extremely leptokur-totic. In comparison with RLS, partially adaptive estimators are only moderately effective in resisting data contamination; however, they outperform least squares and least absolute deviation estimators. 相似文献
38.
Sources of drug information among adolescent students 总被引:1,自引:0,他引:1
E Mirzaee P M Kingery B E Pruitt G Heuberger R S Hurley 《Journal of drug education》1991,21(2):95-106
A sample of 1023 eighth and tenth grade students in small to medium-sized central Texas school districts was assessed to determine the amount of information they receive from ten sources about six categories of drugs. The amount of information males reported receiving about each drug category was significantly greater than what females reported, and the amount of information that eighth graders reported receiving about each drug category was significantly greater than what tenth graders reported. Television was the primary source of drug information for all categories of drugs except inhalants, for which friends and television were equally important sources. Parents and printed media (magazines or newspapers) were of secondary importance, followed by friends and teachers. Adolescents were less likely to receive drug-related information from experience, siblings, church, doctors, and police. The reliance on the mass media for drug information in smaller school districts is a pattern which has been previously observed in larger urban districts. This consistency suggests that mass media approaches to drug education are likely to be as effective in rural areas and smaller towns as they are among urban adolescents. Implications for television programming are discussed. 相似文献
39.
40.