全文获取类型
收费全文 | 1275篇 |
免费 | 67篇 |
专业分类
1342篇 |
出版年
2020年 | 12篇 |
2019年 | 23篇 |
2018年 | 26篇 |
2017年 | 28篇 |
2016年 | 26篇 |
2015年 | 26篇 |
2014年 | 30篇 |
2013年 | 158篇 |
2012年 | 48篇 |
2011年 | 42篇 |
2010年 | 15篇 |
2009年 | 31篇 |
2008年 | 46篇 |
2007年 | 43篇 |
2006年 | 51篇 |
2005年 | 40篇 |
2004年 | 42篇 |
2003年 | 27篇 |
2002年 | 42篇 |
2001年 | 26篇 |
2000年 | 34篇 |
1999年 | 26篇 |
1998年 | 19篇 |
1997年 | 16篇 |
1996年 | 12篇 |
1995年 | 11篇 |
1993年 | 12篇 |
1992年 | 19篇 |
1991年 | 20篇 |
1990年 | 14篇 |
1989年 | 12篇 |
1988年 | 19篇 |
1987年 | 21篇 |
1986年 | 19篇 |
1985年 | 15篇 |
1984年 | 15篇 |
1983年 | 19篇 |
1982年 | 19篇 |
1981年 | 11篇 |
1979年 | 14篇 |
1978年 | 18篇 |
1977年 | 17篇 |
1976年 | 14篇 |
1975年 | 12篇 |
1974年 | 14篇 |
1973年 | 18篇 |
1969年 | 13篇 |
1968年 | 14篇 |
1967年 | 11篇 |
1966年 | 10篇 |
排序方式: 共有1342条查询结果,搜索用时 15 毫秒
911.
Gender differences in dominance and play among preschoolers were examined. Forty-eight children in girl-girl or girl-boy dyads
engaged in masculine and feminine stereotyped activities. Girl-girl dyads displayed more cooperative play than girl-boy dyads.
Adventure themes predominated in boys during both activities but in girls only during the masculine activity. Boys had higher
functional play compared to girls while engaged in the feminine activity, and lower constructive play overall. Girls engaged
in more dramatic play during the feminine activity whereas boys engaged in more dramatic play during the masculine activity.
There was a trend for boys to refuse to follow the leads of girls during the masculine activity. Implications and interventions
in play are discussed.
The authors wish to express appreciation to the directors of the preschools that participated in this study. We would also
like to thank Sheri Wilhite for her help in the coding of the data. 相似文献
912.
J.F. Herbart (1824/1890b) provided a mathematical theory about how mental ideas (Vorstellungen) in consciousness at Time 1 (T1) could compete, possibly driving 1 or more Vorstellungen below a threshold of consciousness. At T1 a Vorstellung A could also fuse with another, B. If at a later T2, A resurfaced into consciousness, it could help B to re-resurface into consciousness. This article describes the historical and mathematical background of Herbart's theory, outlines the mathematical theory itself with the aid of computer graphics, and argues that the theory can be applied to the modern problem of predicting recognition latencies in short-term memory (Sternberg's task; Sternberg, 1966) 相似文献
913.
The purpose of this study is to examine the degree towhich various kinds of out-of-school activitiesadolescents participate in influence their schoolengagement, achievement, and perceptions of their lifechances. The conceptual framework outlined by theauthors suggests personal investments students makeoutside of school in meaningful, structured activitiesand with the help and guidance of adults serving asrole models have significant effects on variouseducational outcomes. To that end, the authors foundsome evidence suggesting that student participation instructured activities and religious activities andtime spent interacting with adults during tenth gradeappear to have positive and significant effects onvarious educational outcomes by Grade 12. Conversely,time spent hanging out with peers was consistentlynegatively associated with educational outcomes in thestudy, with few exceptions. The effects of time spentworking for pay and time spent alone were somewhatinconsistent throughout the analysis but this may bedue to methodological problems within the measures. The result of the analysis has implications forafter-school and summer school policies and programs. The authors discuss these implications and suggestfurther study of the effects of school context, familyinfluence, and the availability of community resourceson students' personal investments. 相似文献
914.
915.
Ambiguous patterns composed of two alternate crosses of different hues and brightness on two different brightness backgrounds were viewed for 120 sec by 10 female college students. Each subject observed 92 pattern presentations (23 patterns, each pattern presented in 2 orientations and on each of 2 backgrounds). Effects of hue and brightness contrast with background were clearly demonstrated: blue was the most dominant, red the least, and green and yellow located in between. Brightness contrast of patterns with background accentuated figural dominance of the darker figures. The number of alternations increased over the observation time for hues of equal brightness; however, the relation of this measure to total duration of seeing a figure in studies of figural dominance is unclear. Theories of neural satiation, fatigue, and interaction were used in interpreting the results. 相似文献
916.
917.
Effects of performance evaluation on interpersonal distance 总被引:1,自引:0,他引:1
918.
Theodore J. Stein 《Journal of applied behavior analysis》1975,8(1):113-115
Workshops and seminars to expose different sectors of the professional community to the principles and applications of behavior modification are briefly discussed. The possible misapplication of procedures by conference participants, whose only exposure to behavioral methods has been at these workshops is viewed as a potentially serious ethical issue. It is suggested that the goals of such seminars and workshops must be clarified, and methods of evaluation of the participants' skills devised, lest we contribute to the misapplication of procedures and to the criticism that behavioral methods are unethical approaches to treatment. 相似文献
919.
J B Murray 《The Journal of general psychology》1985,112(1):5-33
The literature on lithium carbonate was reviewed for clues to the processes involved in mania. Lithium has proved effective therapeutically and prophylactically for mania and depressive disorders. Children and adolescents as well as adults tolerate lithium well. Side effects rarely are serious enough to necessitate having lithium therapy. Some success with schizophrenia and schizoaffective disorders has broadened the scope of lithium's therapeutic efficacy but also blunted the expectation for a direct relationship between lithium and the processes involved in mania. Research points to neurotransmitters as contributing to the etiology and symptom pattern of mania. 相似文献
920.
M H Stein 《Journal of the American Psychoanalytic Association》1985,33(1):35-57
Irony is a more important element of analysis than we generally recognize. First, verbal irony characterizes the discourse of certain patients who employ it as a defense, both adaptively and as a resistance, especially against the expression of intense affect associated with the transference. The frequent employment of irony reflects a significant character trait, an habitual mode of dealing with conflict. It is also a frequent manifestation of a particularly active self-critical faculty. Ironic employment of a "double audience" is also relevant to analytic technique. Second, situational irony is inherent in many aspects of psychoanalysis, as a process and a point of view. It implies the acceptance of the inevitability of conflict, ambiguity and paradox, never quite capable of perfect resolution. It emphasizes critical examination of mixtures of motives of both analysand and analyst, and it requires perpetual questioning of what might otherwise be taken as accepted doctrine, including the principles of psychoanalysis per se. An ironic stance requires some degree of detachment in conjunction with deep commitment, itself an ironic circumstance. Third, the capacity to understand and employ irony can be traced to childhood, relatively early in the course of development of speech and sphincter control; some of its early determinants are to be found in the anal phase of psychosexual development; it reflects as well the capacity to use certain early defenses and mechanisms originally described as characteristic of the dream work. Its later fate as a prominent feature of character is very much a matter of ego and superego development, including such components as intelligence, verbal skills, the capacity for joking and for play, i.e., controlled regression. Sources of identification in the family and the culture are of obvious importance. Finally, an understanding of irony has an important place in the theory of technique, especially with regard to transference and resistance. An ironic stance and understanding on the part of the analyst are valuable, even essential; but irony may become a questionable defense for him as well as for his patient. 相似文献