首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   19946篇
  免费   626篇
  国内免费   1篇
管理学   2628篇
民族学   114篇
人口学   1801篇
丛书文集   78篇
教育普及   1篇
理论方法论   1802篇
综合类   187篇
社会学   10196篇
统计学   3766篇
  2023年   133篇
  2022年   81篇
  2021年   139篇
  2020年   355篇
  2019年   531篇
  2018年   623篇
  2017年   826篇
  2016年   629篇
  2015年   433篇
  2014年   587篇
  2013年   3597篇
  2012年   759篇
  2011年   712篇
  2010年   517篇
  2009年   423篇
  2008年   549篇
  2007年   506篇
  2006年   538篇
  2005年   416篇
  2004年   430篇
  2003年   360篇
  2002年   374篇
  2001年   480篇
  2000年   422篇
  1999年   404篇
  1998年   317篇
  1997年   264篇
  1996年   281篇
  1995年   292篇
  1994年   247篇
  1993年   256篇
  1992年   299篇
  1991年   298篇
  1990年   292篇
  1989年   253篇
  1988年   238篇
  1987年   203篇
  1986年   229篇
  1985年   250篇
  1984年   217篇
  1983年   191篇
  1982年   159篇
  1981年   130篇
  1980年   155篇
  1979年   170篇
  1978年   133篇
  1977年   114篇
  1976年   87篇
  1975年   91篇
  1974年   94篇
排序方式: 共有10000条查询结果,搜索用时 625 毫秒
241.
The verbal and nonverbal communication of warmth was examined in a study in which undergraduate women taught a block design task to a listener who was either a six-year-old child, a retarded adult, a peer who spoke English as a second language (foreigner), or a peer who was a native speaker of English. The degree of warmth conveyed by the speakers differed only minimally across different categories of listeners. However, these communications did vary systematically within each category, in accord with the levels of cognitive and linguistic sophistication of each particular listener. Speakers tended to fine-tune communications by conveying more warmth to the more sophisticated children and foreigners than to the less sophisticated members of these categories. To the more sophisticated retarded persons, however, they conveyed—nonverbally—less warmth than to the less sophisticated retarded persons. The relevance of these findings to the communication of expectancy effects and to the social psychology of stigma is discussed.This paper was written while the first author was visiting at the University of Florida. We thank John Neil Bohannon, Linda Caporael, Margaret Clark, William Cooper, Monica Harris, Harry Levin, and Carol Sigelman for their helpful comments on an earlier draft of this paper. For their help in conducting this research, we thank Ann Ashworth, Pamela Brown, Linda Douglas, Susan Finkelstein, Tamara Harper, Robin Johnson, Susan Kirdendol, Sheila Larkin, Sue Limber, Jose Macaranas, Ashook Nimgade, Maria Papetti, Maurice Perry, Lester Pretlow, Carissa Smith, Laura Taswell, Tina Tedeschi, Charles Valadez, and all of our listener-subjects. We also thank the students, faculty, and administration of Dunmore High School, Dunmore, Pennslyvania, for their participation and cooperation. Support from NSF, NIMH, the National Academy of Education, and a Rackham Faculty Grant was invaluable. Most importantly, we thank Roger Brown and Robert Rosenthal for their wisdom and inspiration.  相似文献   
242.
243.
"This article provides estimates of levels and structures of recent return migration from Canada. Estimates are distinguished according to sex, period of immigration and place of birth of foreign-born emigrants. Special attention is paid to propensity to return. The impact of return migration on change of foreign-born populations is also evaluated." This is a revised version of a paper originally presented at the 1989 Annual Meeting of the Population Association of America (see Population Index, Vol. 55, No. 3, Fall 1989, p. 426).  相似文献   
244.
The authors "consider the problem of adjusting provisional time series using a bivariate structural model with correlated measurement errors. Maximum likelihood estimators and a minimum mean squared error adjustment procedure are derived for a provisional and final series containing common trend and seasonal components. The model also includes measurement errors common to both series and errors that are specific to the provisional series. [The authors] illustrate the technique by using provisional data to forecast ischemic heart disease mortality."  相似文献   
245.
246.
New resource towns on the Canadian frontier have presented planners with opportunities to experiment with innovative planning ideas which attempt to resolve the persistent problems of such communities. In the planning of Tumbler Ridge, a new coal mining town in British Columbia, socially responsive planning was an attempt to develop a town using principles derived from social science research. In this paper the reactions of residents to selected attributes which reflect the application of these principles are examined five years after settlement began. Ratings of community attributes offer an indication of aspects of residential satisfaction, while the results of a principal components analysis suggest the dimensionality of residents' evaluative structures and provide a useful framework within which to consider planning issues. Issues examined are: the association between employment and the community environment; the suitability of the environment for children; and the social environment. While social aspects of the new community are judged as satisfactory, less positive elements reflect the underlying influence of the economic well-being of the mining company on overall community satisfaction. When compared to indicators of community satisfaction in other western Canadian resource towns, ratings for Tumbler Ridge tend to be fairly low. It is concluded that the inability of planners to adequately control implementation or dontinuity of their ideas has resulted in a community not distinctly different from other resource towns. Efforts have been further hampered by a lack of adequate models of the distinctive dynamics of resource communities.  相似文献   
247.
Ian M. Timeeus 《Demography》1991,28(2):213-227
This paper extends earlier research into methods for estimating adult mortality from information on the recent incidence of orphanhood. It presents a series of regression coefficients for estimating female and male mortality from synthetic cohort data on the subsequent orphanhood of those who had a living mother or father at exact age 20. Such information can be obtained either where questions about parental survival have been asked in two inquiries or by asking retrospectively about dates of orphanhood in a single survey. Although the method is somewhat sensitive to errors in the reporting of ages and dates, it is a promising source of up-to-date estimates of adult mortality that are free from bias due to the underreporting of the orphanhood of young children ("the adoption effect").  相似文献   
248.
Balancing act     
  相似文献   
249.
74 labor migrant families from various socioeconomic classes in Amman, Jordan were interviewed to examine changes in relationships among family members, extended family, and neighbors and their concerns about economic stability in the host country, Jordan, and the world market. Another purpose was to determine how current migration policies of the Arab oil-producing countries which prohibit labor migrants from bringing their families to the host country affect labor migration among families. The families consisted of either those who did or did not accompany the labor migrant. Overall labor migration affected unaccompanied families more than accompanied families, e.g., only 19% of the unaccompanied families reported increased family unity compared with 56% of accompanied families. Problems within unaccompanied families increased in 43% of the cases but in only 6% of the accompanied families. Many of these problems resulted in children dropping out of school which reflected the control fathers had within the family, separation, or divorce. Yet labor migration reduced family ties with extended family members and neighbors almost equally for both groups. Accompanied families were not as concerned about economic stability in Jordan as unaccompanied families (38% vs. 50%). Perhaps these families tended not to invest remittances received from the labor migrants working in Arab oil-producing countries in Jordan. Both groups were quite concerned about the economic stability in the host countries (66% and 72%, respectively) and the world market (59% and 62%, respectively), however. Since family unity suffers when families do not accompany labor migrants, it is suggested that oil-producing nations that depend on foreign labor should guarantee family unity as a human right.  相似文献   
250.
The effects of regulatory tools on organizational populations   总被引:6,自引:0,他引:6  
One of the main activities of regulation is the control of market development by influencing the number of firms in an industry, their entry into an industry, and their exit from an industry. Population ecology is used as a framework for explaining both the direct and indirect effects of regulatory activity on entry, exit, and market structure. This framework is then used to derive specific propositions about regulatory effects on entry, exit, and market structure in the health maintenance organization industry.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号