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   62738篇
  免费   2603篇
  国内免费   22篇
  2020年   758篇
  2019年   912篇
  2018年   1260篇
  2017年   1302篇
  2016年   1370篇
  2015年   991篇
  2014年   1204篇
  2013年   5597篇
  2012年   2188篇
  2011年   2182篇
  2010年   1360篇
  2009年   1349篇
  2008年   1916篇
  2007年   1871篇
  2006年   1708篇
  2005年   1437篇
  2004年   1491篇
  2003年   1414篇
  2002年   1407篇
  2001年   2014篇
  2000年   1875篇
  1999年   1442篇
  1998年   734篇
  1997年   631篇
  1996年   695篇
  1995年   659篇
  1994年   624篇
  1993年   610篇
  1992年   1189篇
  1991年   1102篇
  1990年   1068篇
  1989年   1023篇
  1988年   994篇
  1987年   915篇
  1986年   920篇
  1985年   975篇
  1984年   819篇
  1983年   730篇
  1982年   569篇
  1981年   588篇
  1979年   859篇
  1978年   678篇
  1977年   572篇
  1976年   564篇
  1975年   694篇
  1974年   774篇
  1973年   759篇
  1972年   661篇
  1971年   603篇
  1968年   644篇
排序方式: 共有10000条查询结果,搜索用时 218 毫秒
71.
Although a great deal of research has been conducted on the relationship between social support and physical health, the contribution of personality characteristics to this relationship has rarely been assessed. Structural equation modeling was employed to derive and test a model of the direct and indirect relationships between personality characteristics, social network size, the perceived availability of support, socially supportive behaviors, and perceived physical health with a sample of Pennsylvania adults. Significant paths indicate that individuals who perceive themselves as affiliative and as help seekers and help givers report larger social networks, receive more socially supportive behaviors, and perceive that more support is available to them. The perception that support is available shared a direct relationship with perceived physical health. The utility of including multiple measures of social support and personality characteristics related to receiving support in investigations of the relationship between social support and physical health is discussed.  相似文献   
72.
73.
74.
75.
76.
77.
This study examined information communication technologies and workplace friendship dynamics. Employees reported factors that influenced their initiation of friendship with a coworker and reported patterns and perceptions of communication with their workplace friend via different communication methods. Results indicated that personality, shared tasks, and perceived similarity are the most important factors to coworker friendship initiation, and the importance of physical proximity to workplace friendship is diminishing in the electronically connected workplace. Results confirm the primacy of face‐to‐face interaction for workplace friendship initiation and maintenance. E‐mail, phone, and texting were also central to communication among workplace friends. The amount of time spent telecommuting affected workplace friendship initiation and communication. Finally, generational differences were identified with respect to Internet‐based communication methods.  相似文献   
78.
79.
Indiana statute allows police to seize firearms without a warrant if the officer believes a person meets the law's definition of “dangerous.” Review of the use of this law in Marion County (Indianapolis), Indiana, showed that prosecutors filed petitions in court to retain weapons seized by police under this law 404 times between 2006 and 2013. Police removed weapons from people due to identification of a risk of suicide (68%) or violence (21%), or the presence of psychosis (16%). The firearm seizures occurred in the context of domestic disputes in 28% of cases and intoxication was noted in 26% of cases. There were significant demographic differences in the circumstances of firearm seizures and the firearms seized. The seized firearms were retained by the court at the initial hearing in 63% of cases; this retention was closely linked to the defendant's failure to appear at the hearing. The court dismissed 29% of cases at the initial hearing, closely linked to the defendant's presence at the hearing. In subsequent hearings of cases not dismissed, the court ordered the destruction of the firearms in 72% of cases, all when the individual did not appear in court, and dismissed 24% of the cases, all when the individual was present at the hearing. Overall, the Indiana law removed weapons from a small number of people, most of whom did not seek return of their weapons. The firearm seizure law thus functioned as a months-long cooling-off period for those who did seek the return of their guns. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
80.
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