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   40378篇
  免费   1658篇
  国内免费   14篇
  42050篇
  2020年   391篇
  2019年   457篇
  2018年   634篇
  2017年   646篇
  2016年   701篇
  2015年   520篇
  2014年   614篇
  2013年   2778篇
  2012年   1174篇
  2011年   1136篇
  2010年   708篇
  2009年   678篇
  2008年   1028篇
  2007年   1015篇
  2006年   860篇
  2005年   828篇
  2004年   783篇
  2003年   725篇
  2002年   758篇
  2001年   1304篇
  2000年   1245篇
  1999年   908篇
  1998年   426篇
  1997年   359篇
  1992年   883篇
  1991年   818篇
  1990年   838篇
  1989年   726篇
  1988年   724篇
  1987年   695篇
  1986年   726篇
  1985年   801篇
  1984年   600篇
  1983年   555篇
  1982年   378篇
  1981年   364篇
  1979年   693篇
  1978年   437篇
  1977年   420篇
  1976年   418篇
  1975年   585篇
  1974年   674篇
  1973年   718篇
  1972年   622篇
  1971年   581篇
  1970年   575篇
  1969年   567篇
  1968年   755篇
  1967年   665篇
  1966年   598篇
排序方式: 共有10000条查询结果,搜索用时 6 毫秒
71.
This study explored the experience of role conflict for women in infertile couples. The infertile group consisted of 29 women who, with their husbands, were beginning an infertility program; comparison group subjects were 29 married women with no history of inability to conceive. Each subject completed self-report instruments measuring role conceptions and expectations, the experience of role conflict, and occupational commitment. Each husband also reported his role expectations for his ideal woman. Also, a semi-structured interview was conducted with each infertile subject. Compared to the control group, the infertile group's role conceptions were more traditional; they reported less role conflict of various kinds, and they showed greater occupational commitment. They did not differ significantly on degree of wife-husband role discrepancy, or on mother's occupational commitment. These findings lead to an understanding of infertility as part of an interactional system for dealing with potentially intolerable sources of role conflict.  相似文献   
72.
73.
74.
75.
76.
77.
The purpose of this study was to determine the effects of Type A behavior and family history of hypertension on cardiovascular reactivity to mental stress in a group of employed black women. Measures of heart rate and of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were taken at rest, during a mental arithmetic task, and during the Type A Structured Interview (SI). Results indicated that the Type A behavior pattern was associated with SBP and DBP hyperresponsivity during the SI but not during mental arithmetic. Additionally, certain speech components of the Type A pattern, as well as features of the potential-for-hostility component, were also related to cardiovascular responses during the SI. Family history of hypertension did not influence the cardiovascular parameters either alone or in combination with Type A behavior. The results suggest that many of the cardiovascular response characteristics of the Type A pattern that have been observed in predominantly white samples also hold true for blacks. Replication of these findings with other subgroups of blacks, such as young females and middle-aged males, will help document the generality of these findings within the black population.  相似文献   
78.
79.
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