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   70905篇
  免费   3059篇
  国内免费   37篇
  2020年   907篇
  2019年   1017篇
  2018年   1491篇
  2017年   1507篇
  2016年   1573篇
  2015年   1140篇
  2014年   1344篇
  2013年   6127篇
  2012年   2493篇
  2011年   2546篇
  2010年   1532篇
  2009年   1521篇
  2008年   2133篇
  2007年   2091篇
  2006年   1880篇
  2005年   1579篇
  2004年   1616篇
  2003年   1530篇
  2002年   1465篇
  2001年   2418篇
  2000年   2264篇
  1999年   1684篇
  1998年   781篇
  1997年   679篇
  1996年   731篇
  1995年   666篇
  1994年   650篇
  1993年   642篇
  1992年   1371篇
  1991年   1258篇
  1990年   1263篇
  1989年   1209篇
  1988年   1170篇
  1987年   1087篇
  1986年   1099篇
  1985年   1142篇
  1984年   929篇
  1983年   804篇
  1979年   928篇
  1978年   700篇
  1975年   772篇
  1974年   892篇
  1973年   875篇
  1972年   769篇
  1971年   700篇
  1970年   612篇
  1969年   647篇
  1968年   784篇
  1967年   669篇
  1966年   657篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Observers detected a briefly flashed target letter embedded in word, pronounceable nonword, and unpronounceable nonword contexts. The word context facilitated perception under both holistic and analytical processing strategies; the facilitative effect was enhanced when processing was analytical.  相似文献   
992.
993.
994.
995.
B M Newman  P R Newman 《Adolescence》1987,22(87):525-534
In reviewing the literature on the social impact of high school, six themes were identified: (1) students perceive strong norms for conformity to school rules, (2) the emphasis on conformity and control influences the quality of student/teacher relations which tend to be role bound and inflexible, (3) paths to social status continue to emphasize athletic competence, (4) peer group identification has an impact on social relations within the larger community as well as in the school setting, (5) powerlessness is felt as a result of the authoritarian approach to decision making, and (6) the overall high school environment does not enhance students' beliefs in the Bill of Rights. It was concluded that high school students have limited opportunities for flexible self-definition. As a result of the way they are treated by authority figures and the strong pressures toward conformity, many adolescents fail to learn the extent of their rights or effective strategies for the exercise of power.  相似文献   
996.
Young adults' contraceptive practices: an investigation of influences   总被引:3,自引:0,他引:3  
C S Lowe  S M Radius 《Adolescence》1987,22(86):291-304
This study investigated young adults' contraceptive behaviors and attitudes through application of a comprehensive, theoretical framework. Specifically, a social-psychological approach to understanding preventive behaviors (e.g., contraceptive practices), was developed, incorporating the Health Belief Model and other factors, which offered a means for evaluating the extent to which contraceptive behaviors were influenced by individual and group characteristics. The study group consisted of 283 unmarried students at several schools who were, on average, 19 years of age. Results suggested that effective contraceptive behavior associated most strongly with respondents' perceiving relatively few barriers to their use of contraception, their maintenance of extensive interpersonal skills, and their regarding peer norms as consistent with effective contraceptive behavior. Findings also underlined a need for continuing education about sexuality and contraception. Dangerous misinformation prevailed regarding respondents' knowledge of areas that include anatomy, physiology, and appropriate use of effective contraceptive methods. Finally, results implied a need to consider broad behavioral, social, and interpersonal issues as they relate to young adults' effective contraceptive behavior. Future studies of contraceptive risk taking are encouraged to examine both individual and social factors affecting sexual and contraceptive practices if unplanned pregnancy is to be minimized, if not eliminated.  相似文献   
997.
998.
999.
1000.
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