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   1086篇
  免费   63篇
管理学   26篇
人口学   114篇
理论方法论   129篇
综合类   2篇
社会学   857篇
统计学   21篇
  2023年   31篇
  2021年   4篇
  2020年   11篇
  2019年   13篇
  2018年   25篇
  2017年   41篇
  2016年   22篇
  2015年   19篇
  2014年   53篇
  2013年   767篇
  2012年   18篇
  2011年   29篇
  2010年   11篇
  2009年   2篇
  2008年   7篇
  2007年   9篇
  2006年   12篇
  2005年   7篇
  2004年   4篇
  2003年   1篇
  2002年   1篇
  2000年   1篇
  1998年   1篇
  1997年   2篇
  1996年   3篇
  1995年   2篇
  1994年   8篇
  1993年   6篇
  1992年   7篇
  1991年   7篇
  1990年   3篇
  1989年   3篇
  1988年   1篇
  1987年   1篇
  1986年   1篇
  1981年   5篇
  1980年   4篇
  1979年   2篇
  1978年   2篇
  1977年   2篇
  1961年   1篇
排序方式: 共有1149条查询结果,搜索用时 62 毫秒
961.
Abstract

Objectives: Describe two 2009-H1N1 influenza outbreaks in university-based summer camps and the implementation of an infection control program. Participants: 7,906 campers across 73 residential camps from May 21–August 2, 2009. Methods: Influenza-like-illness (ILI) was defined as fever with cough and/or sore throat. Influenza A was identified using PCR or rapid-antigen testing. We implemented an infection control program consisting of education, hand hygiene, disinfection, symptom screening, and ILI case management. Results: An initial ILI cluster involved 60 cases across 3 camps from June 17–July 2. Academic Camp-1 had the most cases (n = 45, 14.9% attack rate); influenza A was identified in 84% of those tested. Despite implementation of an infection control program, a second ILI cluster began on July 12 in Academic Camp-2 (n = 47, 15.0% attack rate). Conclusions: ILI can spread rapidly in a university-based residential camp. Infection control is an important aspect of the medical response but is challenging to implement.  相似文献   
962.
Abstract

Objective: Develop and evaluate key psychometric properties of a self-report questionnaire specifically designed to assess student drinkers’ self-confidence to employ a variety of strategies intended to reduce unhealthy consequences of high-risk drinking. Methods: Four hundred ninety-eight participants rated their confidence (from “not at all confident” to “completely confident”) to employ 17 harm reduction strategies when drinking. Results: Factor analysis and internal consistency reliability analyses indicated that the 17 items constitute a single scale with good test–retest reliability. Consistent with other research examining previous use of such strategies, women in our sample reported significantly higher harm reduction self-efficacy than did men. Harm reduction self-efficacy was also associated with reported number of high-risk drinking episodes in the previous 2 weeks. Conclusion: This brief and easily administered questionnaire holds promise as a clinical tool to identify individuals with low harm reduction self-efficacy and as an outcome measure for health promotion and educational interventions.  相似文献   
963.
Abstract

Objective: Compare feedback strategies in 3 versions of an educational game. Participants: Study abroad students (N = 482) participated by playing the game and completing pregame/postgame surveys January–March 2010. Methods: This study employed an experimental design. Primary outcome measures were knowledge gain, player satisfaction, and risk perception. Results: One-third had previously traveled to a malaria-risk region, and two thirds planned to do so. Baseline malaria knowledge was low. Postgame knowledge and risk perception were significantly higher than pregame, irrespective of past travel status. The group that automatically received explanatory feedback following game decisions scored higher for mean knowledge gain, without differences in player satisfaction. Conclusions: The challenges of designing a feedback strategy to support Web-based learning make these results highly relevant to health educators developing interactive multimedia interventions. The increasing number of students traveling to higher-risk destinations demands attention. Both malaria-naive and malaria-experienced students would benefit from this approach to travel health education.

[An appendix to the article is featured as an online supplement at the publisher's Web site.]  相似文献   
964.
Abstract

Objectives: To determine whether posttraumatic stress (PTS) symptoms are associated with problem drinking and alcohol-related consequences, as well as academic correlates among military-affiliated and civilian students. Participants: The final sample (n = 248) included 78 combat-exposed student service members/veterans, 53 non–combat-exposed student service members/ veterans, 38 ROTC (Reserve Officers’ Training Corps) students, and 79 civilian students. Methods: Self-report data were collected spring 2011 via a Web-based survey measuring PTS, problem drinking, alcohol-related consequences, grade point average, educational self-efficacy, academic amotivation, and persistence. Results: Military students exposed to combat-related trauma reported significantly greater PTS symptoms than other military and civilian groups. PTS symptoms were associated with problem drinking and alcohol-related consequences for all groups, yet unrelated to academic correlates among those exposed to combat-related trauma. Conclusion: This study adds to the scant literature base exploring the unique characteristics of student service members/veterans in higher education.  相似文献   
965.
966.
Abstract

Objective: To investigate the availability of emergency contraceptive pills (ECPs) at college health centers since ECP went over-the-counter (OTC) in 2006. Related issues, such as distribution procedure, existence of a written protocol, personnel involved, contraindications, follow-up procedures, methods of advertising, and staff attitudes, were examined. Participants: The sample included 135 college and university health centers in the mid-Atlantic region of the United States. Methods: Data were collected via telephone survey with the use of a 42-item survey instrument. Results: Forty-three percent of schools reported distributing ECPs, for an average of 10.6 years. Major changes in ECP distribution and usage since ECP went OTC related primarily to protocol in ECP distribution, advertising for ECP services, and ECP accessibility to university students. Conclusions: College health centers are responding to the OTC status of ECP in a number of ways, primarily relating to their distribution procedures and advertising techniques.  相似文献   
967.
Abstract

Objective: Because secondhand smoke is a public health concern, many colleges have adopted bans to ensure healthier environments. This study demonstrates how outdoor smoking policy change can be accomplished at a large public university. Participants: The participants were 1,537 students housed in residential communities at the University of California, Berkeley, who completed an online survey. Methods: A proposal for smoke-free residential communities that included student resident survey data was prepared. Results: The survey data indicated that most students (77%) were bothered by secondhand smoke, and most (66%) favored smoke-free environments. The data were used to advocate for a change in the residential community smoking policy. Conclusion: The survey data and institutional comparisons played a key role in administrators’ decision-making about campus smoking policy. Despite administrators’ concerns about students’ safety and freedom of choice, student-led advocacy was able to influence policy change.  相似文献   
968.
Abstract

This article examines how the field of college health has evolved over time to address the needs of an increasingly diverse student population. The central argument is that college and university health programs developed in conjunction with shifting standards of medical care and public health practices in the United States. The author reviews the role of college health programs as public health agencies for campus communities, and describes contemporary public health challenges facing college campuses. She shows how the history of college health is intertwined with the history of diversity in higher education. In particular, the author outlines how the growth of health services made higher education accessible to women, racial minorities, veterans, and persons with disabilities.  相似文献   
969.
Abstract

Objective: The current study examined (1) drinking motives as a mediator of risky drinking behaviors (ie, pregaming and drinking games) and alcohol-related problems and (2) whether gender moderates the association between risky drinking behaviors and negative consequences. Participants: Participants (N = 368; 68% female) were drinkers aged 18 to 25. Data were collected from September to November 2010 and January to May 2011. Methods: Participants completed measures regarding typical pregaming and drinking game alcohol consumption, drinking motives, and alcohol-related consequences. Results: Social, coping, and enhancement motives partially explained relationships, with enhancement motives explaining the most variance for pregaming (31%) and drinking games (44%). Relationships between risky drinking and consequences were not moderated by gender. Conclusions: Drinking to enhance positive affect may be the most salient motivation for drinking related to pregaming and drinking games for college drinkers. Findings have implications for interventions tailored to students engaging in various heavy drinking practices.  相似文献   
970.
Abstract

Objective: The purpose of this study is to examine how marianismo is related to the depressive symptoms of Mexican American women with family conflict as a mediator. Participants: During January of 2010, 170 Mexican American women college students in a southern, Hispanic-serving institution were sampled. Methods: A mediation analysis was conducted to determine if parent conflict mediates the relationship between marianismo values and depressive symptoms. Results: Results from Barron and Kenny's1 mediation analysis method, in conjunction with a Sobel2 test indicated that parent conflict significantly mediated the relation between marianismo and depressive symptoms. Conclusion: Findings and implications of the mediation will be discussed for the mental health and treatment of Mexican American women college students.  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