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   2730篇
  免费   95篇
管理学   394篇
民族学   16篇
人才学   1篇
人口学   242篇
丛书文集   22篇
理论方法论   244篇
综合类   138篇
社会学   1326篇
统计学   442篇
  2023年   27篇
  2022年   19篇
  2021年   24篇
  2020年   65篇
  2019年   78篇
  2018年   84篇
  2017年   123篇
  2016年   95篇
  2015年   67篇
  2014年   95篇
  2013年   351篇
  2012年   223篇
  2011年   103篇
  2010年   75篇
  2009年   74篇
  2008年   77篇
  2007年   83篇
  2006年   72篇
  2005年   83篇
  2004年   116篇
  2003年   120篇
  2002年   106篇
  2001年   68篇
  2000年   62篇
  1999年   33篇
  1998年   26篇
  1997年   23篇
  1996年   20篇
  1995年   23篇
  1994年   27篇
  1993年   21篇
  1992年   32篇
  1991年   23篇
  1990年   29篇
  1989年   21篇
  1988年   14篇
  1987年   20篇
  1986年   16篇
  1985年   16篇
  1984年   18篇
  1983年   24篇
  1982年   16篇
  1981年   22篇
  1980年   16篇
  1979年   11篇
  1978年   20篇
  1977年   11篇
  1974年   8篇
  1973年   6篇
  1970年   5篇
排序方式: 共有2825条查询结果,搜索用时 15 毫秒
991.
This report is based on a set of clinical observations that identified unique characteristics of 12 female perpetrators of domestic violence in court ordered 52‐week group treatment. The observations are primarily based on the experiences of two therapists who treated a group of 12 female participants, concurrent with two male groups, each of which consisted of 10 participants. A number of comparative clinical observations are made in relation to the treatment of these male and female perpetrators. The group leaders identified three characteristics specific to female perpetrators of domestic violence: compulsive and premature disclosure by more than half the participants in the woman's group, versus minimal or deferred disclosure in the men's groups; perception of self as perpetrator and ambivalent perception of self as victim in the women's group, versus perception of self as either victim or perpetrator in the men's groups; and devaluation of self in the women's group, versus devaluation of the partner in the men's groups. The group leaders also observed that the perceptions and attitudes of the younger, poorer, less well‐educated participants often conflicted with those of their more affluent counterparts.

Therapists who treat mandated perpetrators of domestic violence in groups must contend with direct expressions of hostility. They must also help clients recognize and understand reasons for their dysfunctional partnerships and begin to think about how they can develop healthier relationships. The clinical observations from this group strongly suggest that psychological and socio‐economic factors interact to significantly influence treatment process and outcomes.  相似文献   
992.
Misconduct in science and research became the subject of significant public attention and Congressional scrutiny beginning in the 1970s and 1980s, which led to public statements, policies, and finally formal federal regulations being promulgated by Government agency officials. The Office of Research Integrity (ORI) in the Department of Health and Human Services was a major and very visible component of this process. This article provides a detailed history of the first two decades of federal research misconduct regulations and of ORI's history (under extremely difficult and unfair challenges), including personal views by the former ORI chief investigator and associate director.  相似文献   
993.
This article describes the characteristics of innovative organizations as perceived by employees of nonprofit and government organizations in three quite different countries, South Korea, China, and Argentina. A total of 44 employees participated in the studies (13 from South Korea; 16 from China; and 13 from Argentina). At the first stage of the study they were asked to free list characteristics of innovative organizations. At the second stage of the study, country‐specific measures containing characteristics of innovative organizations were created, and participants were asked to rate each characteristic on a Likert scale (1 = not characteristic at all of an innovative organization; 5 = extremely characteristic of an innovative organization). This task produced ratings of perceived characteristics of innovative organizations for each country. Cultural consensus analysis widely used in the field of cognitive anthropology was employed next to assess the degree of agreement among the participants on what consistutes an innovative organization. Among the common perceived characteristics of innovative organizations were participation in decision making, teamwork, responsiveness to emerging client and societal needs, adaptability, employee support and value, and accepting failure. While the characteristics produced through the free listing technique showed a lot of similarities, the importance of those characteristics was rated quite differently across the three samples.  相似文献   
994.
This article draws on constructivist theories of identity that regard the self as coming into existence through interaction with the other. It investigates the discursive formation of Indigenous people in the forging of Mexican national identity. The aim of this article is to show how difference has been managed and deployed in the establishment of national Mexican identities from independence until the present. This is done with reference to visual culture and film and illustrated with examples from the ‘Golden Age’ as well as ‘the New Mexican Cinema’.  相似文献   
995.
The two-sex problem in the analysis of nuptiality can be reduced to the problem of separating factors that determine the opportunity to choose a certain category of marriage partner from factors representing preference for the same type of partner. A theory that enables opportunity factors to be separated from preference factors is presented in this paper, in the context of analysing the phenomenon of intermarriage. An index called ‘the marital index of social distance’ is derived and its properties discussed. The index, representing preference factors free of opportunity factors, can be calculated easily from marriage statistics detailing group affiliations of brides and grooms. The theory is applied to data on in-marriage of Australian sub-populations defined by birthplace, for the period 1954–83. It is shown that marital indices of social distance have remained relatively constant over time compared with in-marriage rates which have fluctuated according to representation in the marriage market.  相似文献   
996.
This study examines inmates’ core discussion network prior to their incarceration. The core discussion network consists of the immediate social circle of relatively strong ties. The aims of the study are twofold: (1) to describe inmates’ core discussion network prior to their incarceration in terms of network structure, relationship quality and embedded socioeconomic resources; (2) to compare inmates’ core discussion network with the core discussion network of the general Dutch population. Data are analyzed from the Prison Project (n = 1909) and the Survey of the Social Networks of the Dutch (n = 394). Compared with the general Dutch population, prior to incarceration, prisoners generally have a core discussion network that is similar to or even better with respect to network structure and relationship quality. However, prisoners’ core discussion network members seem to lack socioeconomic resources.  相似文献   
997.
We present a new Min-Max theorem for an optimization problem closely connected to matchings and vertex covers in balanced hypergraphs. The result generalizes K?nig’s Theorem (Berge and Las Vergnas in Ann N Y Acad Sci 175:32–40, 1970; Fulkerson et al. in Math Progr Study 1:120–132, 1974) and Hall’s Theorem (Conforti et al. in Combinatorica 16:325–329, 1996) for balanced hypergraphs.  相似文献   
998.
This paper reviews the literature on informal mentoring at work. Based on two basic premises of interpersonal relationships, it discusses four promising areas in current mentoring research that could be cultivated further by future research. The first premise that we hold is that relationships never exist in a vacuum. Traditionally, however, mentoring literature has often overlooked the context of mentoring. We propose that the developmental network approach can be further extended to gather more insight into the interplay between mentoring dyads and their context. Also, mentoring literature could pay more attention to temporal influences in mentoring studies. The second premise that is applied is that relationships are not only instrumental in nature. However, mentoring research to date has mostly applied a one‐sided and transactional view to mentoring. Relational mentoring theory could be helpful in examining relational motivations of both members. Also, mentoring literature can achieve more explanatory power by examining the underlying mechanisms of mentoring, next to social exchange principles, that cause these developmental changes. In summary, in each of these four research areas, we identify and discuss fundamental questions and developments in research that can advance mentoring theory and practice.  相似文献   
999.
An “East–West” divide in contraceptive use patterns has been identified across Europe, with Western European countries characterized by the widespread use of modern contraception, and Central and Eastern European countries characterized by a high prevalence of withdrawal, the rhythm method, or abortion. Building on the Ready–Willing–Able framework, this study aims to gain more insight into the micro- and macro-level socioeconomic, cultural, and technological determinants underlying contraceptive use. Data from the Generations and Gender Survey (2004–2011) covering four Western and seven Central and Eastern European countries are used, and multinomial multilevel analyses are performed. Results reveal that individuals who intend to delay parenthood are more likely to use any contraceptive method, whereas holding more traditional values and having a lower socioeconomic status are associated with a higher likelihood of using no or only traditional methods. Regional reproductive rights and gender equality interact in complex ways with these associations. At minimum, our results underline the complexity of the processes underlying the persistent difference in contraceptive use across Europe.  相似文献   
1000.
Nearest neighborhood classification is a flexible classification method that works under weak assumptions. The basic concept is to use the weighted or un-weighted sums over class indicators of observations in the neighborhood of the target value. Two modifications that improve the performance are considered here. Firstly, instead of using weights that are solely determined by the distances we estimate the weights by use of a logit model. By using a selection procedure like lasso or boosting the relevant nearest neighbors are automatically selected. Based on the concept of estimation and selection, in the second step, we extend the predictor space. We include nearest neighborhood counts, but also the original predictors themselves and nearest neighborhood counts that use distances in sub dimensions of the predictor space. The resulting classifiers combine the strength of nearest neighbor methods with parametric approaches and by use of sub dimensions are able to select the relevant features. Simulations and real data sets demonstrate that the method yields better misclassification rates than currently available nearest neighborhood methods and is a strong and flexible competitor in classification problems.  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