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   5816篇
  免费   177篇
  国内免费   67篇
管理学   586篇
民族学   33篇
人才学   2篇
人口学   79篇
丛书文集   390篇
理论方法论   172篇
综合类   3552篇
社会学   310篇
统计学   936篇
  2024年   7篇
  2023年   56篇
  2022年   41篇
  2021年   74篇
  2020年   106篇
  2019年   111篇
  2018年   115篇
  2017年   176篇
  2016年   128篇
  2015年   166篇
  2014年   268篇
  2013年   606篇
  2012年   349篇
  2011年   333篇
  2010年   276篇
  2009年   281篇
  2008年   312篇
  2007年   359篇
  2006年   377篇
  2005年   370篇
  2004年   301篇
  2003年   301篇
  2002年   209篇
  2001年   187篇
  2000年   135篇
  1999年   81篇
  1998年   54篇
  1997年   43篇
  1996年   41篇
  1995年   43篇
  1994年   32篇
  1993年   23篇
  1992年   27篇
  1991年   18篇
  1990年   16篇
  1989年   15篇
  1988年   8篇
  1987年   5篇
  1986年   3篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1982年   1篇
  1979年   1篇
排序方式: 共有6060条查询结果,搜索用时 15 毫秒
901.
在经费紧张的情况下,以.NETFramework为开发平台,使用远程串口控制、多线程、Socket通讯、视频压缩、音频压缩等技术,利用现有的设备和校园网,自主创新,设计一套成本低廉,但功能强大且实用的多媒体教室远程监控系统.系统利用较少的投入而解决了实际工作中碰到的多种问题,在肇庆学院第二教学楼试用取得了预期效果,明显提高了管理员的工作效率,为广大师生上课提供了便利.  相似文献   
902.
本文利用LabVIEW软件,设计了汽车制动器速度控制仿真系统,并模拟某汽车制动系统基本参数进行仿真与性能分析,结果表明,该仿真系统能够对汽车制动过程中制动角速度及角速度进行模拟,曲线与实际相符,各参数值计算准确。该系统为汽车制动器设计提供了一条新的途径。  相似文献   
903.
我国农村土地登记总体上呈现“法律缺位,政策先行,回避争议,强制推进”的特点,希望借助权利登记制的治理功能,通过完善登记实现对农村土地流转秩序的治理.但不可忽视现有登记制度的缺陷为秩序治理所形成的影响:如虚化的权利主体不能确立登记主体,分立的登记机关无法产生统一准确的登记信息,错位的效力规则无法达成一致的权利变动预期,模糊的赔偿责任导致无法划定登记权行使边界.这些障碍必须通过统一权利主体与登记机关信息、按土地的不同用途构建效力规则及完善错误登记的损害赔偿制度予以克服.  相似文献   
904.
陈宪 《科学发展》2013,(9):93-97
出租车行业的许可管制应实行车辆管制模式,即向个人和公司公开拍卖出租车营运证,引入竞争性多元化经营模式。合理设计营运证市场的机制和规则,形成营运证一级市场和二级市场,分别进行拍卖和自由转让。政府则通过控制营运证数量来调节供求和价格。在此基础上,加强行业的培育,发挥行业组织在出租车运营和管理中的作用,政府逐步退出对出租车行业的直接干预。  相似文献   
905.
上海与江浙周边地区对跨界环境灾害突发事件的联防联控,不仅事关上海城市民生和社会稳定的大计,还涉及长三角区域环境生态的共同治理保护、区域一体化的制度建设、区域可持续发展等一系列经济、社会、环境生态重大问题的解决。上海应建立跨界环境灾害联防联控的相应组织机构与协调机制,提升针对跨界环境灾害的应对能力,牵头开展长三角环境灾害共同治理的重点专题研究,主动参与源头地区环境灾害的共同治理和共同防范。  相似文献   
906.
Abstract

There is a series of common assumptions about prehistoric sex, associated with the prejudice that it must have been more natural because it happened closer to our evolutionary origins. The development of primate studies reveals a high degree of social variation between and within primate species, along with evidence for the practice of non-reproductive sex both recreationally and for expressing dominance relations. Yet, hypotheses about the behavior of human ancestors and early modern humans have been hampered by a lack of an integrated methodology. Although there is no single trajectory for either the elaboration or restriction of sexual behaviors after the emergence of culture, I argue here that it is possible to identify key turning points with more or less universal validity. These points include the reasons for and implications of brain size increase at the time of the emergence of genus Homo, the crystallization of impersonal gender by mid-Upper Paleolithic Ice Age societies, the early development of systems of control over both fertility and the projection and alteration of sexual identity, and the inferred emergence of homonegativity in early, reproduction-oriented farming societies. Further, archaeological data allows naturalist assumptions to be effectively refuted.  相似文献   
907.
Despite the growing body of research examining the experience of stepparents, very little is known about the unique experience of nonresidential stepparents. This research examined the experience of nonresidential stepmothers (N = 10) using semistructured interviews. Thematic content analysis identified 2 principal themes. Those themes were perceived control (with the subtheme of visitation and parenting and financial matters) and psychological and physical well-being. The perceived inability to control parenting practices during periods of visitation and financial matters associated with the payment of child support generated a sense of powerlessness, anger, and resentment that manifested in depression. Implications for family service providers and clinicians working with stepfamilies are discussed.  相似文献   
908.
Photovoice empowers residents to use photographs to identify neighborhood concerns. Although Photovoice has been used to facilitate dialogue and action among residents to address a variety of issues, including neighborhood crime, it has not been used as part of an intervention to promote collective efficacy. This project integrated Photovoice into a crime-prevention program the goal of which was to facilitate collective efficacy, which. in turn, has been associated with lower levels of neighborhood crime and violence. Twenty-four racially diverse youth and adults participated in a crime-prevention training where Photovoice was used first to identify neighborhood characteristics that participants believed contributed to and alleviated crime, and then to develop a community project. Participants worked together to reuse a highly visible vacant lot to create an inviting neighborhood art and garden space that was open to the whole community. This process facilitated stronger social ties among neighborhood residents, as well as strategies for intervening in neighborhood problems, both of which are important components of collective efficacy.  相似文献   
909.
Impulsivity has been implicated in the development of pathological gambling (PG); sensation seeking and urgency in particular have predicted gambling pathology in undergraduate and psychiatric samples. In light of the relevance of both depressed and elevated mood to impulsivity and gambling, the components of impulsivity associated with PG across mood disorders warrants investigation. The aim of the current investigation was to examine the association between impulsivity and gambling pathology severity across depressive versus bipolar disorders. A total of 275 participants with lifetime depressive or bipolar disorder completed measures of impulsivity and gambling. Urgency was consistently associated with gambling pathology indicators; lack of perseverance was specifically associated with gambling pathology within participants with depressive disorders. Reckless action during negative mood is associated with gambling pathology across mood disorders, whereas difficulty remaining focused is associated with PG solely within depressive disorders. Impulsivity and affective comorbidity may inform current understanding of PG.  相似文献   
910.
本课题项目组通过实证调研和文献比较,发现企业建立防治职场性骚扰机制有现实需求。在国家立法确立用人单位防止性骚扰义务之后,企业性骚扰防治机制的推广并不顺利。因为此项义务规定过于笼统而难以落实,职场性骚扰定义的缺位导致认定难,保护对象限于女性的褊狭令部分男性对防治职场性骚扰持消极态度,受害人多数不愿选择向主管投诉或向法院起诉,知情人不愿作证。基于此,有必要从立法模式及其理念、具体制度设计方面提出建立防治职场性骚扰机制的对策,以供在相关立法及决策时有所参考。  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