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   1837篇
  免费   85篇
  国内免费   37篇
管理学   109篇
民族学   34篇
人口学   34篇
丛书文集   146篇
理论方法论   170篇
综合类   1001篇
社会学   453篇
统计学   12篇
  2024年   1篇
  2023年   22篇
  2022年   18篇
  2021年   40篇
  2020年   75篇
  2019年   49篇
  2018年   66篇
  2017年   64篇
  2016年   50篇
  2015年   71篇
  2014年   106篇
  2013年   304篇
  2012年   131篇
  2011年   121篇
  2010年   113篇
  2009年   120篇
  2008年   85篇
  2007年   79篇
  2006年   94篇
  2005年   65篇
  2004年   70篇
  2003年   48篇
  2002年   43篇
  2001年   39篇
  2000年   37篇
  1999年   12篇
  1998年   11篇
  1997年   7篇
  1996年   8篇
  1995年   3篇
  1994年   2篇
  1993年   1篇
  1992年   1篇
  1991年   2篇
  1989年   1篇
排序方式: 共有1959条查询结果,搜索用时 890 毫秒
131.
奉天万国鼠疫研究会是在清政府应对1910年末到1911年初东北三省鼠疫过程中,认识到亟须向国外学习先进的防控经验的前提下召开的。会议由中国倡议并主办,共有来自12个国家的34位正式代表参加。从1911年4月3日(三月初五日)至4月28日(三月三十日)在奉天(今沈阳)召开,其间共举行大会24次,形成决议45项,确定了许多国际通行的防疫准则,为此后的国际防疫合作奠定了基础;同时,这次国际会议也大大推动了中国近代公共防疫事业的发展。奉天万国鼠疫研究会是由清政府主办的中国近代史上第一次国际学术会议。  相似文献   
132.
DNS服务器所面临的威胁集中表现出了互连网的脆弱性,针对DNS服务器的拒绝服务攻击是DNS服务器面临的最大威胁.提出了一种针对查询攻击进行侦测和阻止的思路,并且在solaris的平台上用perl语言来实现,能够保证DNS服务器有效地抵御常规攻击,为正常用户提供及时的服务.同时,本文也对伪造源IP的分布式拒绝服务攻击提出了一种解决方案.  相似文献   
133.
Abstract

One or two session psychotherapy has a long history, and well-known practitioners have made use of it. Favorable results have been reasonably well documented. Often it has been done out of necessity, less frequently because all were satisfied that it sufficed. Problems that lend themselves to one or two sessions are: psychological work which has already been done but for which affirmation is sought, requests for diagnostic evaluation, and less often but more challenging, intrapsychic conflict requiring uncovering work. Patient characteristics and therapist attitudes are discussed. For one or two sessions of treatment to occur the therapist must be alert to the possibility, must assess quickly when a case is in hand, set the process in motion, and determine a satisfactory stopping point. It is suggested that the college population lends itself especially well to one or two sessions of psychotherapy, not only from the standpoint of the limited resources of many student health services but also for the ego strengthening potential it provides.  相似文献   
134.
ABSTRACT

Although researchers often incorporate various measures of ethnicity and ethnic identity (EI) into research about substance use, the relationships among ethnicity, EI, and substance use remain unclear (Marsiglia, Kulis, & Hecht, 2001; Phinney, 1996). This paper explores whether ethnicity and three EI instruments are useful in predicting substance use outcomes among three samples of ethnically diverse middle school youth. Findings include that age, gender, and/or racial or ethnic group membership influenced the strength of EI and that age, sex, and strength of EI influence substance use norms and behaviors. In each case where significant effects were obtained, a stronger sense of EI as measured by two of the instruments predicted more negative attitudes toward, and less use of, alcohol, cigarettes, and marijuana. Implications for preventing substance use among middle school youth by building on and strengthening ethnic identity are provided.  相似文献   
135.
监狱行刑目的应是刑罚目的的具体体现,具体的内容包括报应目的、特殊预防目的和罪犯回归社会目的。报应目的是人类历史上刑罚产生根本原因和刑罚属性在监狱行刑中的体现;特殊预防包含着现代刑罚理念的合理元素,是对人权的尊重和人本主义的提倡;罪犯回归社会是社会和谐的根本,是整个社会的切实愿望,也是监狱行刑的终极目的。三目的相互衔接,前一目的为后一目的的手段,后一目的为前一目的之实现提供方向,形成了平衡与和谐的监狱行刑目的的统一整体。  相似文献   
136.
Abstract

The authors report on the effects of a university and community coalition in preventing problems related to college students' off-campus drinking. The Albany, New York, Committee on University and Community Relations used strategies based on an environmental-management approach that focuses on changing the environment in which individuals make decisions about alcohol consumption and related behaviors. Committee initiatives included improving enforcement of local laws and ordinances, creating a safety-awareness campaign for off-campus students, and developing a comprehensive advertising and beverage-service agreement with local tavern owners. The initiatives were associated with a decline in the number of alcohol-related problems in the community, as indicated by decreases in the number of off-campus noise ordinance reports filed by police and the number of calls to a university-maintained hotline for reporting off-campus problems. An environmental management approach, the authors suggest, has promise as an effective means of preventing alcohol-related problems among college students.  相似文献   
137.
重大自然灾害在合同法上被界定为不可抗力,作为法定的免责事由而免除当事人合同不履行的法律责任。但司法实践中却可能存在诸多的因素导致合同不履行,重大自然灾害可能不是唯一的合同不履行的原因,故在重大自然灾害背景下探讨重大自然灾害与合同不履行之间的原因力关系,对司法实践中处理与重大自然灾害有关的合同纠纷案件具有重要的现实意义。  相似文献   
138.
使用探索性案例研究方法,对台风莫拉克在浙江的演化过程进行分析。研究发现,非常规灾害事件的情景演化过程与生物体的生长过程具有诸多相似之处,同时又具有明显的概率性。在案例研究基础上,进一步构建数学模型,给出了概率性生长模式的形式化表达,也为仿真模拟和计算实验提供了理论基础。  相似文献   
139.
Abstract

This paper highlights theproblems of school violenceand delinquency among youth in our society. It presents research involving regression analysis of data available at the county level for the state of Illinois. A cross-sectional design is utilized for the 102 counties of that state. Results indicate that school violence isimpacted by demographics, i.e, the number of African Americans and whites, while controlling for the youth population. However, school violence is primarily affected by the level of domestic violence and the level of hate crimes in the respective counties. Evidence suggests this to be the primary focus of preven-tion.  相似文献   
140.
BOOK REVIEWS     
No abstract available for this article.  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