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   62187篇
  免费   2433篇
  国内免费   32篇
  2020年   697篇
  2019年   862篇
  2018年   1208篇
  2017年   1233篇
  2016年   1316篇
  2015年   895篇
  2014年   1103篇
  2013年   5598篇
  2012年   1966篇
  2011年   2138篇
  2010年   1311篇
  2009年   1322篇
  2008年   1973篇
  2007年   1971篇
  2006年   1764篇
  2005年   1602篇
  2004年   1563篇
  2003年   1445篇
  2002年   1486篇
  2001年   1884篇
  2000年   1828篇
  1999年   1413篇
  1998年   833篇
  1997年   708篇
  1996年   665篇
  1995年   664篇
  1994年   636篇
  1993年   628篇
  1992年   1139篇
  1991年   1082篇
  1990年   1052篇
  1989年   961篇
  1988年   932篇
  1987年   915篇
  1986年   924篇
  1985年   979篇
  1984年   804篇
  1983年   718篇
  1982年   625篇
  1981年   572篇
  1979年   778篇
  1978年   639篇
  1977年   565篇
  1976年   573篇
  1975年   720篇
  1974年   750篇
  1973年   730篇
  1972年   641篇
  1968年   617篇
  1967年   590篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
951.
This study measured students' attitudes toward a university's student health services (SHS) and identified factors that were related to their attitudes. A questionnaire surveying students' attitudes was administered to a sample of 150 students at the Oxford Campus of the University of Mississippi. Analysis of the data revealed that students' attitudes had a statistically significant correlation with the following variables: perceived medical care cost, amount of health information/education received during medical encounters, time spent in the waiting room of the SHS, sex of the student, and income of the student. There was no significant relationship between attitude and age.  相似文献   
952.
M L Clark 《Adolescence》1986,21(81):205-213
The differences in the personality and social backgrounds of science and non-science majors were assessed for 91 black and 109 white natural, social, and nonscience college majors. Subjects were administered the 16PF, Bem Sex-Role Inventory, and the Attitude Toward Women Scale, and data were collected on birth order, number of siblings, and social class level. Natural science majors were of a higher social class, had higher intelligence test scores, were more reserved, sober, practical, and male sex-role oriented than the social and non-science majors. Blacks and females resembled their white or male counterparts when categorized by college major.  相似文献   
953.
The past fifteen years, in particular, have seen a major increase in the extent to which both adolescents and young adults are engaging in sexual intercourse. While several studies call attention to the increasing incidence among college/university students, the concomitant shifts in the sociopsychological realms of sexuality are also important dimensions which impact upon sexual concerns of youth. Hence, the purposes of this study are to examine the behaviors, attitudes, and concerns of students who have engaged in coitus, as well as any changes they seek in their sex lives. The sample consisted of 123 never-married male and 205 never-married female undergraduate students from a state university. The data were obtained by utilizing an anonymous questionnaire administered to volunteers during regular university classes. Among the coitally active, 67.4% of males were psychologically satisfied after their first sexual experience, but only 28.3% of females. In contrast, 80.9% of males and 28.3% of females reported current psychological satisfaction with their sexual experiences. Significant differences between genders focused on male dissatisfaction with infrequent opportunities for sexual intercourse, lack of variety of sex partners, and insufficient oral-genital stimulation, whereas females expressed concerns relating to lack of stimulation to their breasts, painful sexual intercourse, lack of orgasm during sexual intercourse, and feelings of guilt and fear. An increasing awareness of current sexual behaviors, attitudes, and concerns of university students can help family life educators to meet student needs as they react to changes in interpersonal relationships, families, and society.  相似文献   
954.
955.
Adolescent alcoholism in Benin City, Nigeria   总被引:1,自引:0,他引:1  
O A Pela 《Adolescence》1986,21(82):487-492
The consumption of alcohol by Nigerian adolescents is investigated. Adolescence and alcoholism as applied in this study are defined, and the financial costs and physical and mental effects of alcohol use are described. The author used unobtrusive methods to gather data, visiting three nightclubs and an amusement park where alcohol is served in order to observe and interview adolescents. The findings show that adolescents begin drinking at an early age and consume large quantities of beer. The findings are consistent with those of other epidemiological studies. Finally, recommendations for controlling adolescent alcohol use are made.  相似文献   
956.
957.
Gifted women often find it difficult to integrate an acceptable social image with an autonomous artistic identity. This paper explores the ambitions and conflicts of Zelda Fitzgerald, who aspired to be an artist in several fields, but whose fame is largely contingent on the role she played in the life of her husband, F. Scott Fitzgerald. Zelda's flamboyant public pose, which served as a model for many of her husband's literary characters, is interpreted as an attempt to organize a consistent identity configuration by means of constant appeals for applause from an admiring audience. But although this configuration provided some stability and cohesion for her during her twenties, it was a superficial and vulnerable structure which failed to support her serious artistic aspirations. An examination of the separation conflicts and difficulties in internalization which contributed to Zelda's dilemma leads to a consideration of the role of the father in the organization of differentiated female achievements. Although Zelda Fitzgerald's pathology was extreme, her struggles suggest useful insights into the intrapsychic and social barriers commonly confronting creative women.  相似文献   
958.
959.
960.
The belief that individual marital therapy (IMT) is an ineffective form of treatment for marriage problems and markedly inferior to the conjoint approaches has become almost an article of faith in family therapy circles. This position was originally advanced in the influential reviews of the research literature conducted by Gurman and Kniskern, and their conclusions have been cited in numerous other articles. This paper re-reviews the research studies purportedly supporting this conclusion and finds almost all of them to be invalidated by gross flaws in design and implementation. It is argued that from the highly inadequate evidence available, no conclusions can be reached concerning either the absolute or relative effectiveness of IMT.  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