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   65718篇
  免费   2518篇
  国内免费   18篇
  2019年   776篇
  2018年   1088篇
  2017年   1051篇
  2016年   1139篇
  2015年   806篇
  2014年   996篇
  2013年   5606篇
  2012年   1775篇
  2011年   1868篇
  2010年   1157篇
  2009年   1139篇
  2008年   1711篇
  2007年   1589篇
  2006年   1491篇
  2005年   1309篇
  2004年   1279篇
  2003年   1242篇
  2002年   1228篇
  2001年   2023篇
  2000年   1894篇
  1999年   1456篇
  1998年   730篇
  1996年   756篇
  1995年   730篇
  1994年   709篇
  1992年   1344篇
  1991年   1260篇
  1990年   1221篇
  1989年   1171篇
  1988年   1169篇
  1987年   1111篇
  1986年   1140篇
  1985年   1167篇
  1984年   1007篇
  1983年   879篇
  1982年   723篇
  1981年   716篇
  1979年   1020篇
  1978年   763篇
  1976年   699篇
  1975年   914篇
  1974年   949篇
  1973年   1021篇
  1972年   919篇
  1971年   814篇
  1970年   773篇
  1969年   777篇
  1968年   942篇
  1967年   826篇
  1966年   808篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
Suicides among older adults in the United States and Canada in the last decade have accounted for an increasing share of all suicides. In both countries the use of firearms among older adults has steadily increased. Despite these trends, little is known about the extent to which crisis centers are prepared to prevent elder suicide. A survey of AAS-listed crisis prevention centers examined the training, knowledge, and current practices relevant to elder suicide among personnel in 321 crisis prevention centers in both countries. Results revealed insufficient training, a lack of familiarity with recent suicide trends, and limited outreach to older adults.  相似文献   
93.
The country‐of‐origin effect is a topic central to the field of international marketing. Country of origin has been found to exert a particularly potent effect on consumer evaluation in situations where there is a strong link between a country and a particular product category. The present study provides further insight into how this particular effect can be understood. Drawing on a novel conceptualization of how country image and product categories interact, this study tested the relative evaluative relevance of product category with respect to estimates of brand equity across a variety of product categories. The findings suggest that facets of a country's image that are more closely related to the evaluation situation exert a greater influence on the evaluation of brands. This result encourages scholars as well as practitioners to re‐evaluate which situations might cause the country of origin effect to hold managerial relevance and paves the way for new paths toward a more comprehensive understanding of the effect. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
94.
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   
95.
96.
97.
98.
99.
100.
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