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   302篇
  免费   7篇
管理学   10篇
民族学   2篇
人口学   28篇
丛书文集   1篇
理论方法论   38篇
综合类   1篇
社会学   205篇
统计学   24篇
  2023年   4篇
  2022年   3篇
  2021年   3篇
  2020年   7篇
  2019年   15篇
  2018年   16篇
  2017年   11篇
  2016年   6篇
  2015年   9篇
  2014年   12篇
  2013年   45篇
  2012年   8篇
  2011年   15篇
  2010年   13篇
  2009年   8篇
  2008年   14篇
  2007年   14篇
  2006年   7篇
  2005年   11篇
  2004年   8篇
  2003年   10篇
  2002年   15篇
  2001年   6篇
  2000年   4篇
  1999年   2篇
  1998年   3篇
  1997年   1篇
  1996年   2篇
  1995年   3篇
  1994年   1篇
  1993年   4篇
  1992年   2篇
  1991年   2篇
  1990年   3篇
  1989年   1篇
  1988年   3篇
  1987年   1篇
  1986年   2篇
  1985年   5篇
  1984年   2篇
  1983年   4篇
  1981年   1篇
  1980年   2篇
  1978年   1篇
排序方式: 共有309条查询结果,搜索用时 62 毫秒
241.
A common response to the need to place increasing numbers of social work students in field education or practice learning placements has been to broaden the range of organisations in which placements are sought. While this strategy has provided many beneficial learning opportunities for students, it has not been sufficient in tackling ongoing difficulties in locating work-integrated learning opportunities for social work students. We argue that new approaches to finding placement opportunities will require a fundamental rethink as to how student placements are understood. This paper introduces an innovative project which started with a consideration of learning opportunities and built a structure to facilitate these, rather than rely on organisational availability to host students on placements.  相似文献   
242.
Objective: To determine the feasibility of a mobile health (mHealth), media literacy education program, Media Aware, for improving sexual health outcomes in older adolescent community college students. Participants: 184 community college students (ages 18–19) participated in the study from April–December 2015. Methods: Eight community college campuses were randomly assigned to either the intervention or a wait-list control group. Student participants from each campus completed web-based pretest and posttest questionnaires. Intervention group students received Media Aware in between questionnaires. Results: Several intervention effects of the Media Aware program were significant, including reducing older adolescents' self-reported risky sexual behaviors; positively affecting knowledge, attitudes, normative beliefs, and intentions related to sexual health; and increasing media skepticism. Some gender differences in the findings were revealed. Conclusions: The results from this study suggest that Media Aware is a promising means of delivering comprehensive sexual health education to older adolescents attending community college.  相似文献   
243.
Objective: This study investigated associations between adverse childhood experiences (ACE) prior to age 18 years and multiple health behaviors (eg, cigarette and other substance use) and outcomes (eg, obesity, depression) for a large college sample. Participants: 2,969 college students from seven universities in the state of Georgia were included in the analysis. Methods: Web-based surveys were completed by students (45–60 minutes) during the spring semester, 2015. Results: Findings indicate that more ACEs are associated with higher levels of depressive symptoms, ADHD symptoms, cigarette use, alcohol use, marijuana use, and BMI, in addition to lower levels of fruit and vegetable intake, and sleep. Conclusion: ACEs may carry forward in the lifespan to influence a range of unhealthy outcomes among college students. College intervention programs may benefit by recognizing the pervasiveness of ACEs and their associations with health behaviors and outcomes, and include interventions across more than one health behavior.  相似文献   
244.
Individual level differentials between migrants and nonmigrants are examined to ascertain the likelihood of return migration to a prior residence based on characteristics at the time of departure from place of origin. Analysis focuses on comparisons of Hispanics, blacks and whites, examining the odds of return migration by education, employment status, marital status, home ownership, length of residence, gender, age, and migration interval. The 1979 National Longitudinal Survey of Youth (NLSY79) is utilized to identify 13,798 preliminary migrations that may be followed by at least one return migration. Findings indicate a sharp decline in propensity to return migrate as length of absence from origin increases. Regardless of length of time since the preliminary migration, both blacks and Hispanics are more likely to return migrate than are whites. Individuals who resided at place of origin for longer periods before leaving had strikingly higher odds for return migration.  相似文献   
245.
This research explored the development of Black adolescents’ (= 454) critical reflection, conceived as individual (i.e., blaming Black people) and structural (i.e., blaming systemic racism) attributions for race achievement gaps. In this longitudinal study, adolescents and their parents reported their individual and structural attributions for race achievement gaps and parents’ racial socialization. Adolescents’ structural attributions increased from Grade 10 to Grade 12. Average levels of individual attributions did not change. Adolescents’ reports of parental racial socialization and parents’ structural attributions when youth were in Grade 10 predicted increases in adolescents’ structural attributions. Findings are applied to future research and efforts to increase adolescent critical reflection.  相似文献   
246.
ABSTRACT

This article summarizes a presentation given at the 2017 North Carolina Serials Conference by Judith Nagata. The speaker discussed how her library used vendor-supplied usage data and graphic representations of that data to make decisions about journals and journal packages.  相似文献   
247.
Reviews     
Abstract

Beth Ashmore reviews The Purpose-Based Library: Finding Your Path to Survival, Success and Growth; Scott Johnson reviews Metaliteracy in Practice; Catherine Johnson reviews Teaching Information Literacy Reframed: 50+ Framework-Based Exercises for Creating Information-Literate Learners; Adolfo G. Prieto reviews Dynamic Research Support for Academic Libraries.  相似文献   
248.
ABSTRACT

Beth Ashmore reviews More Library Mashups: Exploring New Ways to Deliver Library Data; Michelle DeMars reviews Library Consortia: Models for Collaboration and Sustainability; Sarah Tusa reviews Library Management in Disruptive Times: Skills and Knowledge for an Uncertain Future.  相似文献   
249.
Development of knowledge acquisition techniques known as automated discovery systems has occurred in deep and narrow domains of knowledge. Automated discovery is the generation of new knowledge by a computer system on its own, without the help of another knowledge source. This paper describes research and validation of an automated discovery system for a wide and shallow domain—business management. The system continues recent advances in expert systems research which have enhanced cognitive mapping, a problem formulation tool. The system perceives the behavior of distal variables in the environment through probabilistic cues-to-causality, and generates previously unknown hypotheses by aggregating the probabilities into a single criterion of causal relatedness. The system is validated against the source code of a simulated managerial environment, and causal relationships posited by decision makers experienced in the play of the gaming simulator.  相似文献   
250.
Mission statements have been adopted nearly universally in nonprofit organizations. Their ubiquity is based on a presumption that a well‐designed mission statement is linked to better organizational performance because it provides a framework for decision making, influence over staff and volunteer motivation, and a mechanism for signaling organizational legitimacy to stakeholders. Despite collective confidence in mission statement utility, the relationship between mission statements and performance has received minimal attention. In this exploratory study we measured several attributes of mission statements in women's rights nonprofit organizations, with particular attention to the degree to which the statement focuses on organizational purpose and the relationship between focus and several measures of organization financial performance. The findings indicated that mission statements with a more focused geographic scope were associated with lower overhead ratios. In contrast, mission statements that identified more target client groups were associated with larger one‐year increases in contribution. Despite the statistical significance, the relationships were weak, calling into question common assumptions about the importance of the mission statement to a nonprofit organization.  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