全文获取类型
收费全文 | 7719篇 |
免费 | 326篇 |
出版年
2023年 | 60篇 |
2022年 | 62篇 |
2021年 | 110篇 |
2020年 | 143篇 |
2019年 | 171篇 |
2018年 | 266篇 |
2017年 | 248篇 |
2016年 | 262篇 |
2015年 | 182篇 |
2014年 | 201篇 |
2013年 | 765篇 |
2012年 | 336篇 |
2011年 | 343篇 |
2010年 | 205篇 |
2009年 | 226篇 |
2008年 | 282篇 |
2007年 | 256篇 |
2006年 | 220篇 |
2005年 | 184篇 |
2004年 | 196篇 |
2003年 | 183篇 |
2002年 | 152篇 |
2001年 | 201篇 |
2000年 | 173篇 |
1999年 | 134篇 |
1998年 | 72篇 |
1997年 | 71篇 |
1996年 | 59篇 |
1993年 | 55篇 |
1992年 | 97篇 |
1991年 | 94篇 |
1990年 | 102篇 |
1989年 | 99篇 |
1988年 | 99篇 |
1987年 | 78篇 |
1986年 | 80篇 |
1985年 | 88篇 |
1984年 | 80篇 |
1983年 | 64篇 |
1982年 | 67篇 |
1979年 | 72篇 |
1978年 | 68篇 |
1977年 | 56篇 |
1975年 | 69篇 |
1974年 | 66篇 |
1973年 | 60篇 |
1972年 | 61篇 |
1971年 | 56篇 |
1968年 | 53篇 |
1967年 | 65篇 |
排序方式: 共有8045条查询结果,搜索用时 31 毫秒
81.
F H de Jonge J Burger F van Haaren H Overdijk N E van de Poll 《Behavioral and neural biology》1987,47(3):369-383
The influence of sexual experience on preference behavior was investigated in adult female rats. In the first experiment, preference behavior for sexually active males versus estrous females was investigated in female rats who were experienced with mounting behavior. Preference of these mount experienced females was compared to preference of females who were naive in this respect. Mount experience with estrous females induced a female-directed preference in ovariectomized female rats, irrespective of whether the females were treated with OIL or with testosterone-propionate (500 micrograms TP, injected once 48 h prior to testing). Sexually naive, OIL-treated females did not show a preference for males or females, but TP induced a preference for a male. Individual differences in mount frequency were not correlated with preference behavior. In the second experiment, the influence of experience with feminine sexual responses on preference behavior was investigated. OIL-treated and TP-treated females oriented equally toward males and females when they had been given the opportunity to copulate with males prior to the preference tests. The results strongly suggest that prior sexual experience is an important determinant of preference behavior. The female's behavior during sexual interactions was, however, not predictive of later preference. 相似文献
82.
83.
84.
85.
G. M. van der Molen M. A. van den Hout J. Vroemen H. Lousberg E. Griez 《Behaviour research and therapy》1986,24(6):677-680
The effects of lactate infusion on subjective mood change were studied in two differently instructed groups, in a double-blind, placebo-controlled, cross-over study. Ss who were told that infusions would produce anxiety reported a significant change in the expected direction after lactate but not after glucose. Ss who were told that infusions would produce a state of pleasant excitement showed no change after either infusion. The possible role of cognitive parameters in experimentally-induced anxiety is discussed. 相似文献
86.
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
87.
88.
89.
O J Harvey 《Journal of personality》1986,54(4):659-675
This study focused on the relationship of belief systems as a configural construct and conservatism-liberalism to attitudes toward the death penalty and other punishments for offenses of varying severity Extrapersonalists, the most concretely functioning of the four conceptual or belief systems posited by Harvey, Hunt, and Schroder (1961), were most in favor of the death penalty They also endorsed the most severe punishment for a variety of crimes, to a particularly greater extent than did representatives of either of the two more abstractly functioning systems The belief dimensions of Openness, Evaluativeness, and Complexity, as well as the frequency of church attendance, correlated more highly and consistently with attitudes toward punishment than did either Conservatism-Liberalism or gender Both of the latter variables failed to correlate with a number of the outcome variables and related at only low levels to the others The greater predictive power of a configural conception of personality or belief systems over a unidimensional conception seems to have been demonstrated Configural concepts may additionally be generally superior to multidimensional concepts treated linearly 相似文献
90.
The relations between type A behavior, clinically relevant behavior, academic achievement, and IQ in children 总被引:1,自引:0,他引:1
E E Bachman J O Sines J A Watson R M Lauer W R Clarke 《Journal of personality assessment》1986,50(2):186-192
The relation of Type A behavior to IQ, academic achievement, and several clinically relevant dimensions of behavior in children was assessed in 873 fourth, fifth, and sixth graders by means of the Matthews Youth Test for Health (MYTH), the Cognitive Abilities Test (CAT), the Iowa Tests of Basic Skills (ITED), and the teachers' form of the Missouri Children's Behavior Checklist (MCBC-T). The MYTH and its competitiveness and impatience-aggression subscales were found to be differentially related to academic achievement and to account for a small but significant portion of the variance in achievement not accounted for by IQ. The subscales of the MYTH were found to be highly correlated with several clinically familiar dimensions of children's behavior. The significance of these findings for the construct validity of the MYTH is discussed. 相似文献