全文获取类型
收费全文 | 3073篇 |
免费 | 81篇 |
专业分类
管理学 | 481篇 |
民族学 | 24篇 |
人才学 | 1篇 |
人口学 | 269篇 |
丛书文集 | 27篇 |
理论方法论 | 308篇 |
综合类 | 34篇 |
社会学 | 1596篇 |
统计学 | 414篇 |
出版年
2023年 | 24篇 |
2022年 | 18篇 |
2021年 | 30篇 |
2020年 | 72篇 |
2019年 | 77篇 |
2018年 | 91篇 |
2017年 | 129篇 |
2016年 | 116篇 |
2015年 | 84篇 |
2014年 | 93篇 |
2013年 | 460篇 |
2012年 | 126篇 |
2011年 | 112篇 |
2010年 | 75篇 |
2009年 | 96篇 |
2008年 | 90篇 |
2007年 | 77篇 |
2006年 | 83篇 |
2005年 | 98篇 |
2004年 | 97篇 |
2003年 | 86篇 |
2002年 | 86篇 |
2001年 | 85篇 |
2000年 | 70篇 |
1999年 | 51篇 |
1998年 | 38篇 |
1997年 | 33篇 |
1996年 | 47篇 |
1995年 | 36篇 |
1994年 | 34篇 |
1993年 | 52篇 |
1992年 | 39篇 |
1991年 | 35篇 |
1990年 | 26篇 |
1989年 | 22篇 |
1988年 | 24篇 |
1987年 | 24篇 |
1986年 | 23篇 |
1985年 | 22篇 |
1984年 | 32篇 |
1983年 | 24篇 |
1982年 | 28篇 |
1981年 | 20篇 |
1980年 | 20篇 |
1979年 | 21篇 |
1978年 | 13篇 |
1977年 | 22篇 |
1975年 | 21篇 |
1974年 | 19篇 |
1973年 | 10篇 |
排序方式: 共有3154条查询结果,搜索用时 0 毫秒
21.
Abstract Despite a high prevalence of poverty among minorities in nonmetropolitan areas, research and policy concerns regarding poverty have continued focusing on metropolitan minorities. This study uses a model integrating individual, household, and structural factors to examine poverty among Latinos, blacks, and Anglos in nonmetropolitan and, for comparative purposes, metropolitan areas, using data from the 1985 Special Texas Census TDHS 1987. The findings show that minorities in nonmetropolitan areas tend to have the highest poverty rates. In addition, consistent as well as divergent patterns exist among the six ethnic-resident groups with respect to the relationships among the various individual, household, and structural factors and poverty. 相似文献
22.
Ray Thomas 《Significance》2004,1(2):60-63
Conventional unemployment statistics have two dimensions—size and date. Population-at-risk unemployment rates add a third dimension—time. They are unlikely to revolutionise our picture of the nature of unemployment, says Ray Thomas . But they do give a more accurate and comprehensive picture than existing measures, and provide new insights into old problems, such as indicating the importance of statistics of entrants in helping to explain geographical variation in unemployment. 相似文献
23.
24.
25.
Mark J. Miller Nancy P. Newell Thomas P. Springer Don Wells 《The Career development quarterly》1992,40(4):334-339
The Self-Directed Search was administered to 68 university seniors who were majoring in Chemistry/Chemical Engineering, Elementary Education, and Office Administration. Their resulting three-letter summary codes were compared with three-letter college major codes obtained from the College Majors Finder. A high degree of agreement between the two sets of codes was found for each of the three majors. Effective methods for matching people to jobs have held the interest and occupied much time for career counselors and vocational theorists since the inception of the trait-factor approach to career counseling. More recently, Holland (1985a) broadened and clarified matching procedures through the development of his typological theory of vocational choice. Just as personality types and occupational environments have been organized using Holland's framework to foster an understanding of occupational choice, Holland's theory can also be used to explain other types of choices, such as choice of a college major. 相似文献
26.
Thomas Dietz Ann Stirling Frisch Linda Kalof Paul C. Stern Gregory A. Guagnano 《Rural sociology》1995,60(3):533-542
The American diet has changed substantially over the last few decades. These changes provide a test for social theory and have substantial effects on the demand for various food products, thus impacting U.S. agriculture. In this paper a rapidly growing dietary choice—vegetarianism—is explored. Prevalence of various forms of vegetarianism is estimated in a representative sample of a suburban population and factors that influence choice of a vegetarian diet are examined. About 7 percent of the sample report they are vegetarians. The prevalence of vegetarianism is not influenced by age, gender, or education, but individuals holding traditional values are less likely to be vegetarian than others. There also is some evidence mat individuals holding altruistic values are more likely than others to be vegetarians. 相似文献
27.
28.
We specify and estimate a model of the early employment growth of technology-driven new ventures. Our estimated model is derived
from labor demand theory. A data set of 100 German firms is used to conduct this analysis. The study’s findings support the
relevance of the theory as applied to these nascent firms. Employment growth is significantly enhanced in ventures exhibiting
high profits, experienced founders, formal information processes, and outsourced product distribution. Our findings also confirm
aspects of Penrose’s theory of firm growth suggesting that transactions costs associated with larger founder teams may inhibit
employment growth. 相似文献
29.
Standard algorithms for the construction of iterated bootstrap confidence intervals are computationally very demanding, requiring nested levels of bootstrap resampling. We propose an alternative approach to constructing double bootstrap confidence intervals that involves replacing the inner level of resampling by an analytical approximation. This approximation is based on saddlepoint methods and a tail probability approximation of DiCiccio and Martin (1991). Our technique significantly reduces the computational expense of iterated bootstrap calculations. A formal algorithm for the construction of our approximate iterated bootstrap confidence intervals is presented, and some crucial practical issues arising in its implementation are discussed. Our procedure is illustrated in the case of constructing confidence intervals for ratios of means using both real and simulated data. We repeat an experiment of Schenker (1985) involving the construction of bootstrap confidence intervals for a variance and demonstrate that our technique makes feasible the construction of accurate bootstrap confidence intervals in that context. Finally, we investigate the use of our technique in a more complex setting, that of constructing confidence intervals for a correlation coefficient. 相似文献
30.