全文获取类型
收费全文 | 5176篇 |
免费 | 103篇 |
专业分类
管理学 | 684篇 |
民族学 | 24篇 |
人口学 | 524篇 |
丛书文集 | 21篇 |
教育普及 | 1篇 |
理论方法论 | 492篇 |
综合类 | 59篇 |
社会学 | 2410篇 |
统计学 | 1064篇 |
出版年
2023年 | 33篇 |
2021年 | 50篇 |
2020年 | 90篇 |
2019年 | 118篇 |
2018年 | 129篇 |
2017年 | 195篇 |
2016年 | 142篇 |
2015年 | 81篇 |
2014年 | 135篇 |
2013年 | 792篇 |
2012年 | 161篇 |
2011年 | 146篇 |
2010年 | 124篇 |
2009年 | 109篇 |
2008年 | 137篇 |
2007年 | 131篇 |
2006年 | 150篇 |
2005年 | 113篇 |
2004年 | 112篇 |
2003年 | 77篇 |
2002年 | 99篇 |
2001年 | 132篇 |
2000年 | 122篇 |
1999年 | 132篇 |
1998年 | 101篇 |
1997年 | 86篇 |
1996年 | 93篇 |
1995年 | 68篇 |
1994年 | 60篇 |
1993年 | 87篇 |
1992年 | 90篇 |
1991年 | 98篇 |
1990年 | 78篇 |
1989年 | 78篇 |
1988年 | 62篇 |
1987年 | 68篇 |
1986年 | 62篇 |
1985年 | 75篇 |
1984年 | 66篇 |
1983年 | 69篇 |
1982年 | 44篇 |
1981年 | 40篇 |
1980年 | 37篇 |
1979年 | 47篇 |
1978年 | 38篇 |
1977年 | 33篇 |
1976年 | 34篇 |
1975年 | 32篇 |
1974年 | 41篇 |
1973年 | 29篇 |
排序方式: 共有5279条查询结果,搜索用时 15 毫秒
1.
Oliveira Flávio G. Tapisso Joaquim T. von Merten Sophie Rychlik Leszek Fonseca Paulo J. Mathias Maria da Luz 《Urban Ecosystems》2021,24(5):851-862
Urban Ecosystems - The development of urban areas imposes challenges that wildlife must adapt to in order to persist in these new habitats. One of the greatest changes brought by urbanization has... 相似文献
2.
Theory and Society - The massive expansion of US higher education after World War II is a sociological puzzle: a spectacular feat of state capacity-building in a highly federated polity. Prior... 相似文献
3.
Aldaba Fernando T. 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2002,13(2):179-192
This paper discusses an emerging role for Philippine NGOs—building and maintaining intersectoral cooperation among various sectors of society to tackle key issues like agricultural development, HIV/AIDS, and agrarian reform. The three case studies elaborated in the paper show that Philippine NGOs play important intermediary and bridging functions crucial for the success of multistakeholder partnerships. NGOs are well equipped for this because of their middle-class and professional nature and because of various characteristics like autonomy, flexibility, and the ability to mobilize resources. 相似文献
4.
5.
The authors examined the relative contributions of both proximal and distal supports to the career interests and vocational self‐efficacy in a multiethnic sample (N = 139) of middle school adolescents. Consistent with Social Cognitive Career Theory, it was found that (a) vocational self‐efficacy and career planning/exploration efficacy consistently predicted young adolescents' career interests across Holland (J. L. Holland, D. R. Whitney, N. S. Cole, & J. M. Richards, 1969) themes; (b) gender and career gender‐typing predicted interests in Realistic, Investigative, and Social careers; and (c) perceived parent support accounted for 29% to 43% of the total unique variance in vocational self‐efficacy for all Holland theme careers. 相似文献
6.
Expectations, Capital Gains, and Income 总被引:2,自引:0,他引:2
A theoretical framework for the measurement of income under uncertainty is developed that addresses some long-standing controversies about the treatment of capital gains. The consequences for economic analysis and policy making are potentially serious, because the treatment of capital gains can significantly affect some major macroeconomic aggregates, including national income and savings, balance of payments deficits, government deficits, and depreciation. (JEL O47 , P44 , Q32 ) 相似文献
7.
In our zeal to deal with alcohol and drug abuse, we may have a distorted picture of what the majority of college students actually think about alcohol and drug use. Students in this study done at a public university located in the Deep South report being generally intolerant of substance abuse. 相似文献
8.
9.
10.
D R Lairson R Harrist D W Martin R Ramby T A Rustin J M Swint K Harlow J Cobb 《Journal of drug education》1992,22(4):337-352
Primary care physicians are well situated to identify patients with substance abuse problems and motivate them to seek appropriate assistance, but active programs are the exception. A study in a community setting was undertaken to assess the CAGE (the first letters of key words in a series of four questions about drinking: cut down; annoyed; guilty; and eye-opener), instrument in the routine screening for alcohol problems in both new and established patients. The screening process identified subjects for a pilot evaluation of a motivational interview designed to encourage problem-solving behavior. This article focuses on the screening results and the use of the CAGE instrument. During June and July of 1990, 687 patients of two primary care physicians belonging to a large group practice were asked to complete a health questionnaire that included the CAGE. Those who responded affirmatively to at least two of the four CAGE questions were requested to participate in follow-up assessment of problems associated with alcohol and health. The type and severity of alcohol problems experienced by patients who scored positive on the CAGE are described. Prevalence of a positive score on the CAGE was 8.6 percent with males, smokers, and blue collar and unemployed persons being more likely to score positive. The positive predictive value was .68. Primarily, persons with moderate alcohol problems were identified. Results show that the CAGE instrument is a useful screening device for identifying those with mild to moderate substance abuse problems, increasing the opportunity for intervention prior to serious medical complications. The instrument is easily administered, and has demonstrated relatively high levels of sensitivity and specificity. When combined with assessment and motivational interviews, the CAGE shows promise in the secondary prevention of substance abuse and related health problems. 相似文献