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   7912篇
  免费   180篇
  国内免费   2篇
管理学   1244篇
民族学   26篇
人口学   694篇
丛书文集   22篇
理论方法论   703篇
综合类   97篇
社会学   4014篇
统计学   1294篇
  2020年   92篇
  2019年   120篇
  2018年   147篇
  2017年   171篇
  2016年   157篇
  2015年   110篇
  2014年   162篇
  2013年   1336篇
  2012年   187篇
  2011年   203篇
  2010年   153篇
  2009年   151篇
  2008年   191篇
  2007年   182篇
  2006年   197篇
  2005年   188篇
  2004年   158篇
  2003年   129篇
  2002年   150篇
  2001年   155篇
  2000年   179篇
  1999年   143篇
  1998年   141篇
  1997年   124篇
  1996年   132篇
  1995年   133篇
  1994年   142篇
  1993年   133篇
  1992年   143篇
  1991年   157篇
  1990年   173篇
  1989年   145篇
  1988年   160篇
  1987年   136篇
  1986年   136篇
  1985年   134篇
  1984年   147篇
  1983年   133篇
  1982年   98篇
  1981年   81篇
  1980年   87篇
  1979年   114篇
  1978年   91篇
  1977年   71篇
  1976年   84篇
  1975年   54篇
  1974年   77篇
  1973年   52篇
  1971年   43篇
  1970年   45篇
排序方式: 共有8094条查询结果,搜索用时 35 毫秒
851.
Parents are challenged in the adolescent years by attempts to increase adolescent responsibility while also managing separation issues. Adolescent drug use can exacerbate parental concerns. Parental fears and anxieties surrounding adolescent drug use can undermine opportunities to respond effectively. This paper describes the theoretical rationale for, and early experience of delivering, a brief intervention program designed to assist parents coping with adolescent drug problems. The program emerges out of a hybrid of systems and behaviour therapy principles and has been designed to address issues associated with parenting characterised by a high level of emotional involvement and/or ineffective parental control. Group work encouraging more adolescent responsibility-taking can assist parents disabled by feelings of guilt and failure. As parents develop emotional independence from adolescent behaviour, an appropriate expectation for adolescent control is established.  相似文献   
852.
There exists a correlation between disturbances in the early mother-daughter relationship and the adolescent's gravitating toward illegitimate pregnancy and abortion. Out-of-wedlock pregnancies may be an expression of opposing urges to separate from the mother while longing to remain very close. Abortion, the ultimate rejection of the fetus, may express hatred of the mother as well as its corollary hatred for a self that has remained merged with a hated or ambivalently regarded mother. In the clinical material it became clear that the most meaningful steps within the treatment were catalyzed by reenactments of the mother-daughter relationship and that interpretation of transference and countertransference tended to be the crucial element in the work. Movement toward more self-acceptance was paralleled by a more benign stance toward the therapist, the mother, and the daughter.This article was completed in partial fulfillment of the requirements for a certificate in the Post-Master's Program in Advanced Clinical Social Work at Hunter College School of Social Work. The author thanks Dr. Lucille Spira for her help in writing this article. Ms. Grill is a psychiatric social worker New York Psychiatric Institute in private practice.  相似文献   
853.
A meta-analysis of the California school-based risk reduction program   总被引:4,自引:0,他引:4  
Prominent nonquantitative reviews of research evaluating school-based interventions designed to deter adolescents from the use of tobacco, alcohol and other drugs found the methodology to be flawed and thus little evidence existed that the interventions had the desired impact. Recent meta-analytic reviews indicate that information-focused interventions have more impact upon knowledge but less upon attitudes and behavior whereas alternative interventions have less impact upon knowledge but more upon attitudes and behavior. This result is replicated by the current meta-analysis performed upon eight risk-reduction programs meeting six standard methodological requirements for evaluation research.  相似文献   
854.
Consensus about financial performance measurement remains elusive for nonprofit organization (NPO) researchers and practitioners alike, due in part to an overall lack of empirical tests of existing and new measures. The purpose of the current study was to explore potential similarities of financial performance measures derived from two sources: current NPO research and key informant interviews with NPO foundation constituencies. The authors examined financial performance measurement ratios with data from fifteen Internal Revenue Service (IRS) Form 990 line items. Using factor analytic techniques, they found three performance factors, each with two associated financial measurement ratios, to be present. They categorized the performance factors as fundraising efficiency, public support, and fiscal performance. This article discusses implications of the findings and future research.  相似文献   
855.
Objective . The primary objective of this article is to investigate the "informal" marketplace for domestic servants (maids) in a border community in South Texas (Laredo). Methods . A questionnaire was administered by a household member familiar with the present study who employed at least one maid utilizing the snowball method of sample selection. Usable data (surveys) were collected from 389 individuals—195 maids and 194 employers. Results . For maids, who are overwhelmingly female Mexican nationals, the primary determinant or "push" factor in becoming a maid was economic necessity while the primary "pull" factor was good pay. A large hourly wage differential was uncovered for day maids ($3.44) vis-a-vis live-in maids ($2.61), which was primarily the result of civil status and the possession of documents permitting entry into the United States as determined by a logistic regression. Conclusion . The relative attractiveness of work as a maid in Laredo, Texas reflects the benefit of good pay balanced by the cost of poor employment choice in Mexico.  相似文献   
856.
Objective. Satellite-based remote-sensing analysis is a beneficial, yet underused, tool for environmental policy, planning, and evaluation. We identify its benefits and costs to encourage social scientists to consider the use of remote sensing as a tool for planning and evaluating environmental institutions. Methods. We analyze two multispectral Landsat Thematic Mapper satellite images to evaluate a habitat conservation plan (HCP) implemented pursuant to the Endangered Species Act. Results. Image analysis provides useful broad spatial scale information on HCP performance that is not discernible to the naked eye or through other methodologies. Conclusions. Satellite image analysis should be considered as a tool for planning and evaluating environmental institutional designs—despite the financial costs and requisite technical training. These images provide ecological and land cover change information that may not be available elsewhere. We provide lessons learned to help make analysts cognizant of some important issues surrounding the use of satellite-based imagery for environmental institutional analysis.  相似文献   
857.
Clearly, the necessary changes in the law and culture will not come easily or quickly. But, transcending all forms of these labor market segments is a set of concerns that arguably should spur a search for common ground between labor and management. The proliferation of automated technologies, together with the continuing impact of foreign competition with cheap labor markets, has led some to predict that, over the next quarter century, we will witness the elimination of the blue-collar, mass assembly-line worker from the production process.14 Moreover, the theory that those losing jobs in the manufacturing sector will be generally absorbed into the service sector is losing currency as it is becoming clear that service jobs are, themselves, not invulnerable either to offshore outsourcing (e.g., telephone operators, data processors) or to automated technology (e.g., bank tellers, office secretaries). Nor is it realistic to expect the new “knowledge sector” to absorb more than a fraction of the unemployed and underemployed casualties of this transformation. As a result, the widening gap between the haves and have nots will only continue to grow. As the trend accelerates, certain possibilities for a labor-management accommodation emerge. For one thing, although corporations may be enjoying short-term gains from present wage stagnation, downsizing, outsourcing, and casting off of permanent employees, the longer term effects include a work force with considerably diminished consumer purchasing power. In some industries, corporations are already acknowledging the adverse effects of this trend. Furthermore, as employers are contributing into pension funds on behalf of fewer and fewer “employees,” the forced savings pool that has for many years constituted a primary financing source of capital investments in our economy, will gradually be depleted.15 At the same time as employers are coming face to face with the disadvantages of the union-free environment they have so long sought, employers are also rediscovering the contributions to productivity, quality, and efficiency that can be gained from a truly empowered work force with an independent voice in the workplace. All of this should lead an enlightened management to place less currency on resisting unionization and other legitimate forms of independent employee representation, and to join labor in advocating strong labor standards and effective labor law for all four of the labor market segments that exist today and will exist tomorrow. The authors wish to convey their deep appreciation for the invaluable contributions to this paper made by David Silberman of Bredhoff & Kaiser and Craig Becker, Associate General Counsel, Service Employees International Union. Another version of this paper was published in Labor Lawyer.  相似文献   
858.
THE MARKET FOR MOTION PICTURES: RANK, REVENUE, AND SURVIVAL   总被引:12,自引:0,他引:12  
Every motion picture is an innovation that competes for theater screens and audiences during its brief life against a changing array of imperfect substitutes. We analyze a large sample of motion pictures as an evolving rank tournament of survival and death. The results indicate that the failure rate of motion pictures is time-dependent and survival time is strongly related to the number of initial bookings. Weekly box office revenue is highly convex in rank, which is consistent with Rosen's superstar phenomenon. Our results have implications for motion picture licensing arrangements, which have been severely restricted by U.S. court decisions.  相似文献   
859.
The development of preventive interventions targeting adolescent problem behaviors requires a thorough understanding of risk and protective factors for such behaviors. However, few studies examine whether different cultural and ethnic groups share these factors. This study is an attempt to fill a gap in research by examining similarities and differences in risk factors across racial and ethnic groups. The social development model has shown promise in organizing predictors of problem behaviors. This article investigates whether a version of that model can be generalized to youth in different racial and ethnic groups (N=2,055, age range from 11 to 15), including African American (n=478), Asian Pacific Islander (API) American (n=491), multiracial (n=442), and European American (n=644) youth. The results demonstrate that common risk factors can be applied to adolescents, regardless of their race and ethnicity. The findings also demonstrate that there are racial and ethnic differences in the magnitudes of relationships among factors that affect problem behaviors. Further study is warranted to develop a better understanding of these differential magnitudes.  相似文献   
860.
Based on extensive research that views leadership as a multi-faceted phenomenon, we examined how the relationships between task-oriented and relationship-oriented leader behaviors and career derailment potential vary by observer perspective. We present findings using three different analytical techniques: random coefficient modeling (RCM), relative weight analysis (RWA), and polynomial regression (PR). RCM findings suggest that self-, direct report, peer, and supervisor ratings of leader behaviors differ and are associated with career derailment potential. RWA results indicate that self-ratings matter the least, whereas peer ratings of leader behaviors typically matter the most in predicting career derailment potential. PR analyses indicate that career derailment potential is lowest when self-ratings are lower than other ratings of leader behaviors and/or when self–other ratings converge on higher, rather than lower, ratings of leader behaviors. Implications for leadership and self–other agreement research and professional practice are discussed.  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