全文获取类型
收费全文 | 22851篇 |
免费 | 115篇 |
专业分类
22966篇 |
出版年
2023年 | 15篇 |
2022年 | 19篇 |
2021年 | 20篇 |
2020年 | 49篇 |
2019年 | 61篇 |
2018年 | 3537篇 |
2017年 | 2867篇 |
2016年 | 2303篇 |
2015年 | 251篇 |
2014年 | 168篇 |
2013年 | 387篇 |
2012年 | 682篇 |
2011年 | 2500篇 |
2010年 | 2564篇 |
2009年 | 1547篇 |
2008年 | 1806篇 |
2007年 | 2284篇 |
2006年 | 156篇 |
2005年 | 303篇 |
2004年 | 250篇 |
2003年 | 180篇 |
2002年 | 164篇 |
2001年 | 75篇 |
2000年 | 91篇 |
1999年 | 44篇 |
1998年 | 51篇 |
1997年 | 59篇 |
1996年 | 33篇 |
1995年 | 23篇 |
1994年 | 26篇 |
1993年 | 23篇 |
1992年 | 30篇 |
1991年 | 17篇 |
1990年 | 28篇 |
1989年 | 27篇 |
1988年 | 15篇 |
1987年 | 13篇 |
1986年 | 26篇 |
1985年 | 21篇 |
1984年 | 13篇 |
1983年 | 20篇 |
1982年 | 16篇 |
1981年 | 18篇 |
1980年 | 15篇 |
1978年 | 13篇 |
1977年 | 15篇 |
1976年 | 16篇 |
1975年 | 15篇 |
1973年 | 18篇 |
1968年 | 12篇 |
排序方式: 共有10000条查询结果,搜索用时 6 毫秒
111.
112.
113.
Ilan Gur-Zeev 《Studies in Philosophy and Education》2011,30(5):477-483
Under the post-metaphysical sky “old” humanistic-oriented education is possible solely at the cost of its transformation into
its negative, into a power that is determined to diminish human potentials for self-exaltation. Nothing less than total metamorphosis
is needed to rescue the core of humanistic genesis: the quest for edifying Life and resistance to the call for “home-returning”
into the total harmony that is promised to us within nothingness. 相似文献
114.
115.
Trevor A. Hart Syed W. Noor Shayna Skakoon-Sparling Samer N. Lazkani Sandra Gardner Bob Leahy John Maxwell Rick Julien Scott Simpson Malcolm Steinberg Barry D. Adam 《Behavior Therapy》2021,52(1):1-14
Gay, bisexual, and other men who have sex with men (GBM) continue to have high rates of HIV and sexually transmitted infections, including syphilis. GBM have therefore been identified by public health agencies as a high-priority population to reach with prevention initiatives. Despite the importance of mental health in preventing HIV and related infections, there is a shortage of credentialed mental health professionals to deliver behavioral Counseling interventions. The current study evaluated the efficacy of GPS, a community-based and peer-delivered sexual health promotion motivational interviewing–based intervention for HIV-positive GBM who engaged in condomless anal sex (CAS) in the past 2 months. GPS prevention counseling demonstrated a 43% relative reduction at 3-month follow-up in CAS with serodiscordant partners and significant reductions in sexual compulsivity. The study demonstrated that community-based counselors can administer an efficacious motivational interviewing program, and suggests a continued benefit of counseling methods to promote the sexual health of higher risk populations. 相似文献
116.
117.
Scott Parker Robert W. Jernigan Joshua M. Lansky 《The British journal of mathematical and statistical psychology》2020,73(1):170-183
The Wilcoxon–Mann–Whitney procedure is invariant under monotone transformations but its use as a test of location or shift is said not to be so. It tests location only under the shift model, the assumption of parallel cumulative distribution functions (cdfs). We show that infinitely many monotone transformations of the measured variable produce parallel cdfs, so long as the original cdfs intersect nowhere or everywhere. Thus there are infinitely many effect sizes measured as shifts of medians, invalidating the notion that there is one true shift parameter and thereby rendering any single estimate dubious. Measuring effect size using the probability of superiority alleviates this difficulty. 相似文献
118.
119.
120.
Robert J. Blanchard Timothy Flores Linda Magee Scott Weiss D. Caroline Blanchard 《Aggressive behavior》1992,18(6):459-467
Five male/two female rat colonies were established in visible burrow systems, with males selected for pregrouping attack scores and also evaluated in open field and cat odor tests. Dominant-subordinate pregrouping attack differences suggested that the males becoming dominant are those showing more persistent and higher level attack. For six colonies showing dominant-subordinate behavioral differences, pregrouping defense tests failed to predict subordinate status. However, pregrouping defense scores were reliably correlated with subordinate pre-postgrouping change scores for voluntary ethanol consumption. Subordinates showed higher ranked ethanol consumption than dominants, but these groups were not different on pregrouping ethanol consumption. Subordinate postgrouping ethanol consumption was positively correlated with pregrouping attack toward an adult intruder, consonant with previous findings that highly aggressive subordinates are the targets of more intense attack by dominants. These results provide further support for a view that subordination stress increases voluntary ethanol consumption in male rats and suggest some additional individual differences factors that may be involved in increased ethanol consumption for male subordinates. © 1992 Wiley-Liss, Inc. 相似文献