全文获取类型
收费全文 | 3728篇 |
免费 | 170篇 |
国内免费 | 2篇 |
出版年
2020年 | 53篇 |
2019年 | 77篇 |
2018年 | 105篇 |
2017年 | 94篇 |
2016年 | 98篇 |
2015年 | 77篇 |
2014年 | 104篇 |
2013年 | 428篇 |
2012年 | 127篇 |
2011年 | 147篇 |
2010年 | 96篇 |
2009年 | 90篇 |
2008年 | 135篇 |
2007年 | 118篇 |
2006年 | 117篇 |
2005年 | 106篇 |
2004年 | 88篇 |
2003年 | 106篇 |
2002年 | 111篇 |
2001年 | 99篇 |
2000年 | 88篇 |
1999年 | 70篇 |
1998年 | 43篇 |
1997年 | 39篇 |
1996年 | 45篇 |
1995年 | 46篇 |
1994年 | 43篇 |
1993年 | 39篇 |
1992年 | 55篇 |
1991年 | 52篇 |
1990年 | 48篇 |
1989年 | 50篇 |
1988年 | 38篇 |
1987年 | 37篇 |
1986年 | 48篇 |
1985年 | 44篇 |
1984年 | 45篇 |
1983年 | 35篇 |
1982年 | 42篇 |
1981年 | 36篇 |
1979年 | 40篇 |
1978年 | 31篇 |
1975年 | 35篇 |
1974年 | 34篇 |
1973年 | 29篇 |
1972年 | 31篇 |
1970年 | 39篇 |
1968年 | 35篇 |
1967年 | 42篇 |
1966年 | 33篇 |
排序方式: 共有3900条查询结果,搜索用时 15 毫秒
61.
In this paper we concern ourselves with the problem of whether or not conditioning stimuli of other modalities or stimuli applied to a distant locus of the body interact with a sensitive test of somesthetic temporal acuity we have called the gap test. The results of the experiment indicate that visual stimuli do not exert an observable influence on this temporal judgment, but that auditory stimuli and contralateral stimulation in the same modality do show a significant but relatively small effect. This is compared and contrasted with the very large and persistent effect reported when the conditioning stimulus is applied to the same electrodes as the gap test. By comparing our results with experiments of similar design carried out on lower animals by other investigators, some insights into the neural localization of the reported effects is obtained. 相似文献
62.
63.
64.
65.
66.
67.
68.
Hugh Jenkins B. Phil. 《Contemporary Family Therapy》1990,12(4):311-325
Much family therapy writing has focused on work with discrete presenting problems in circumscribed clinical practice settings. This paper takes a broader focus of poor families which do not fit easily into the one-hour therapy schedule, in the context of the powerful forces of politics and economics. If the prevailing political attitudes and economic realities are ignored, direct practice with families may fail to meet them at their point of experience. Examples of political views, and therapeutic and research thinking which do not pay attention to these aspects, are used to highlight the author's point of view. 相似文献
69.
This article reviews the results of survey methodological research that illustrate phenomena of potential interest to investigators of memory, and also reviews psychological research designed to explore some of these phenomena under controlled laboratory conditions. We classify the phenomena reviewed into broad categories of remembering what events occurred, remembering when events occurred, and estimation and reconstruction processes used in reporting recurring events. We delineate the contributions of this research for our understanding of memory phenomena and show where this research has revealed gaps in our existing theories and knowledge. These findings present challenges for future collaboration between cognitive psychologists and survey methodologists. 相似文献
70.
Scott W. Henggeler Ph.D. Gary B. Melton Ph.D. Linda A. Smith B.A. Sonja K. Schoenwald M.A. Jerome H. Hanley Ph.D. 《Journal of child and family studies》1993,2(4):283-293
In a randomized clinical trial, multisystemic family preservation was shown to significantly reduce rates of criminal activity and incarceration in a sample of 84 serious juvenile offenders and their multi-need families. In the current study, archival records were searched for re-arrest an average of 2.4 years post-referral. Survival analysis showed that youths who received multisystemic family preservation were less likely to be re-arrested than were youths who had received usual services. Such results represent the first controlled demonstration that family preservation, when delivered via a clearly specified treatment model, has lasting effects with serious juvenile offenders. Implications for family preservation and juvenile justice research are discussed. 相似文献