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   4321篇
  免费   119篇
  国内免费   3篇
管理学   490篇
民族学   26篇
人口学   386篇
丛书文集   26篇
理论方法论   314篇
综合类   86篇
社会学   1890篇
统计学   1225篇
  2023年   29篇
  2022年   20篇
  2021年   24篇
  2020年   72篇
  2019年   132篇
  2018年   114篇
  2017年   196篇
  2016年   116篇
  2015年   100篇
  2014年   119篇
  2013年   915篇
  2012年   145篇
  2011年   114篇
  2010年   79篇
  2009年   102篇
  2008年   96篇
  2007年   84篇
  2006年   73篇
  2005年   75篇
  2004年   68篇
  2003年   57篇
  2002年   85篇
  2001年   90篇
  2000年   76篇
  1999年   89篇
  1998年   76篇
  1997年   66篇
  1996年   56篇
  1995年   76篇
  1994年   55篇
  1993年   58篇
  1992年   68篇
  1991年   68篇
  1990年   74篇
  1989年   61篇
  1988年   43篇
  1987年   44篇
  1986年   50篇
  1985年   55篇
  1984年   56篇
  1983年   41篇
  1982年   37篇
  1981年   33篇
  1980年   40篇
  1979年   45篇
  1978年   37篇
  1977年   26篇
  1976年   21篇
  1974年   21篇
  1971年   21篇
排序方式: 共有4443条查询结果,搜索用时 78 毫秒
971.
Screening brief intervention, and referral to treatment (SBIRT) is a clinical intervention empirically linked to reductions in substance usage. However, less is known on how to effectively train social work students on SBIRT. This study examines the impact of a SBIRT training administered to BSW and MSW students (N=228) at the University of Oklahoma. Based on exposure to the training, our evaluation measured changes on students’ objective knowledge of how to perform SBIRT and in attitudes toward practicing with substance users. Results indicated exposure to the training was associated with robust gains across variables and across classes. Such results suggest that the proffered SBIRT training is an effective means to educate social work students on substance abuse practice.  相似文献   
972.
ABSTRACT

An ideal of involved fatherhood has become popular in the developed countries, but even countries like Finland that have introduced an individual father’s quota to parental leave are far from gender equality in parents’ leave practices. Lack of support and negative attitudes at workplaces or pressure at work are among the obstacles to fathers’ leave take-up. The study used survey data from fathers and interviews at workplaces to explore the role of work and workplaces among the many aspects related to fathers’ possibilities of taking leave. The results showed that fathers’ income and workplace characteristics were associated with taking leave. Few fathers mentioned employers’ objection as a hinder. Father’s recent unemployment and anticipated difficulty of taking a long time off played a more important role. At workplaces, the obstacles to taking long leave were related to fathers’ ideals about a committed worker and to the nature and organizing of work. Additionally, the leave exceeding fathers’ quota might not be understood as ‘for fathers’. The spouse’s situation and fathers’ gendered perceptions about parental responsibilities were also important for leave practices. The findings suggest that policy development towards a longer father’s quota could make fathers’ care responsibilities visible also at workplaces.  相似文献   
973.
974.
G. N. Singh  S. Suman 《Statistics》2019,53(2):387-394
This paper addresses the estimation of the mean number of individuals in the population who possess a rare sensitive attribute using Poisson distribution for the situations of (i) clustered population and (ii) stratified population with clusters are strata units. Properties of the proposed estimation procedures have been discussed when the proportion of a rare unrelated non-sensitive attribute is assumed to be known as well as unknown. Empirical studies are carried out to support the theoretical results which showed dominance over Lee et al. [Estimation of a rare sensitive attribute in probability proportional to size measures using Poisson distribution. Statistics (Ber). 2014;48(3):685–709] estimation procedures.  相似文献   
975.
When it comes to the creation of higher education policy, state legislators are challenged with addressing the diverse academic needs of college students enrolled across a spectrum of institutions. In this paper, we explore how 203 individuals at five rural-serving colleges in Florida engaged in state-wide developmental education (DE) reform using the theoretical framework of “situated cognition.” Specifically, we ask whether the colleges implemented DE reform in unique ways that may have differed from their non-rural counterparts and what their rationale was for doing so. Our work indicates that institutional culture and capacity generated a combination of strengths and constraints in how reform played out in a rural context. In some ways, a rural-serving identity made colleges more flexible and better able to adjust their advising and curricular structures to comply with the mandates of SB 1720. But in other ways, rural-serving institutions lacked the resources necessary to adequately support students and campus personnel through this dramatic transition toward new ways of providing DE. In looking toward the passage and implementation of future education reform, we call upon policymakers to consider more deeply the design of policies to ensure they support rural and non-rural colleges alike.  相似文献   
976.
977.
This article examines forms of care which can be used by social workers to best respond to unaccompanied minors (UAMs) given their complex needs and particular vulnerability combined with their agency and resilience. The vulnerabilities and agency/resilience of UAMs are examined in the context of multiple borders (cultural, political and physical) being negotiated by these young people. While it focuses on Ireland as an example of a country where care provision for UAMs has improved considerably in recent years, it draws on both the Irish and international literatures. This article critically analyses the shift from hostel to foster care provision for UAMs in Ireland and explores benefits and difficulties associated with using foster care, while also discussing the use of alternative forms of care, such as residential care. We argue that social workers must always give consideration to a range of care options, to the needs of the individual child and to both their vulnerability and their resilience/agency. This is especially true given the diversity within the population of UAMs. Given the increasing numbers of refugees entering Europe and the mix of provision for UAMs across the continent, the Irish situation may represent a useful site for examination of their care.  相似文献   
978.
A regression type estimator of the parameter d in fractionally differenced ARMA (p,q) processes is presented. The proposed estimator is shown to be mean square consistent. Its performance is compared with some of the existing estimators via a simulation study.  相似文献   
979.
某些价值和理想是可以超越文化界线的,比如大众汽车自动变速器(大连)有限公司生活和工作所在的社区的社会责任意识。责任感已根深蒂固地存在于公司的商业及社会活动中。它是公司的核心企业价值,不仅体现在公司产品的质量标准上,而且体现在与公司生产互动的各种各样活动中。作为中国大众汽车集团全资子公司,他有着著名的德国名字,并且成为大连社区的组成部分。而且,公司在2010-2011年度履行社会责任方面获得两项殊荣,得到  相似文献   
980.
Traditional material requirement planning (MRP) is a system procedure to determine input quantities and ordering times to meet a specified demand in a deterministic framework. A variety of modifications to MRP have been proposed to incorporate different forms of uncertainty in production systems. In this paper, wc consider the case where the uncertainty is due to quality variations in the production process, and we develop an approach which links material planning with quality variations and control.  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