全文获取类型
收费全文 | 7226篇 |
免费 | 151篇 |
专业分类
7377篇 |
出版年
2020年 | 96篇 |
2019年 | 102篇 |
2018年 | 169篇 |
2017年 | 179篇 |
2016年 | 183篇 |
2015年 | 130篇 |
2014年 | 148篇 |
2013年 | 720篇 |
2012年 | 224篇 |
2011年 | 207篇 |
2010年 | 150篇 |
2009年 | 191篇 |
2008年 | 177篇 |
2007年 | 168篇 |
2006年 | 157篇 |
2005年 | 127篇 |
2004年 | 147篇 |
2003年 | 132篇 |
2002年 | 117篇 |
2001年 | 173篇 |
2000年 | 140篇 |
1999年 | 122篇 |
1998年 | 72篇 |
1997年 | 70篇 |
1996年 | 80篇 |
1993年 | 85篇 |
1992年 | 100篇 |
1991年 | 115篇 |
1990年 | 106篇 |
1989年 | 92篇 |
1988年 | 110篇 |
1987年 | 92篇 |
1986年 | 88篇 |
1985年 | 105篇 |
1984年 | 96篇 |
1983年 | 105篇 |
1982年 | 93篇 |
1981年 | 90篇 |
1979年 | 105篇 |
1978年 | 79篇 |
1977年 | 82篇 |
1976年 | 77篇 |
1975年 | 96篇 |
1974年 | 101篇 |
1973年 | 96篇 |
1972年 | 81篇 |
1971年 | 77篇 |
1968年 | 84篇 |
1967年 | 93篇 |
1966年 | 79篇 |
排序方式: 共有7377条查询结果,搜索用时 0 毫秒
151.
152.
Emory L. Cowen PhD Ellis L. Gesten Alice B. Wilson 《American journal of community psychology》1979,7(3):293-303
This study evaluated the effectiveness of the Primary Mental Project (PMHP), a program for early detection and prevention of school adjustment problems. Pre- and postprogram assessments were done with 215 primary-grade children seen in PMHP, usig teacher ratings of problem behaviors and competencies, and child-aide ratings of problems. School mental health professionals judged educational and behavioral changes in project children during the year. Significant across-the board improvements were found on all criterion measures. Modest intercorrelations among criterion change estimates suggested that the observed changes were due to program, rather than halo, effects. PMHP children also improved significantly more than matched, retrospective controls. 相似文献
153.
JOHN O. NELSON 《Philosophical Investigations》1979,2(1):1-8
We must agree, I think, with Frank Ebersole that there is something preposterous in supposing that the God of religious belief, the God who handed down tablets to Moses on Mt. Sinai, etc., should be proven to exist by the ontological argument. Indeed, when we place the one, the ontological argument, by the side of the other, the God of religious belief, there seems hardly to be any connection between them. But if we agree to this perception of things, what sense can we make of the ontological argument, for example, the “pull” that it sometimes exerts on us? 相似文献
154.
Edward L. Pinney Jr. MD 《Group》1979,3(1):55-59
Summary Following an abrupt shift from a therapeutic community with emphasis on group meetings to a hierarchical medical model on a mental hospital floor, disturbed patients required extensive individual nursing care. This increased work load for the nursing staff resulted in admissions having to be limited to the rare cases who needed little or no nursing care. As patients were discharged, the vacancy rate went up to approximately 20% for a week and remained high for another two weeks. Nursing staff-patient relations deteriorated.Subsequently, it was possible to resume the emphasis on the groups of a therapeutic community and to observe the contrast. The experience showed how groups can effect and support a therapeutic community. It clarified some of the mechanisms by which groups positively affected disturbed patients. Some mechanisms by which the staff, community, and group meetings favorably influenced the nursing staff-patient relationship and intrastaff communications became clear also. 相似文献
155.
The effect of using teachers as behavioral observers on both student and teacher behavior was examined with eight teachers and 32 elementary school children. The frequency of prompts (but not praise or criticism) to those students observed by the teacher increased significantly from nonobserver to teacher observed experimental phases. In addition, students observed by the teacher showed more change in appropriate behavior than students who were not observed. The significance of these findings for research and therapy is discussed. 相似文献
156.
157.
JAMES P. SAMPSON ROBERT O. STRIPLING LARRY C. LOESCH 《Journal of Employment Counseling》1977,14(3):103-109
This study investigated seven factors relating to personal preferences in choosing a career. Differences between male and female preferences were also studied. While males and females express similarities relating to the seven factors, they also reveal differences that should be considered by counselors helping individuals explore career choices. 相似文献
158.
159.
The development of guidance services in Irish schools since the sixties is described and discussed. Provision for the full-time training of guidance teachers began in 1967, and after a brief attempt to use short courses as a substitute, this has now been accepted as the standard form of basic training. Since 1972 approximately 90 guidance teachers have qualified each year, and by 1974 they were present in about 24% of post-primary schools. Data is reported from a survey of early graduates from the one-year course at University College Dublin, and also from a survey of the attitudes to guidance of the heads of schools with guidance teachers. Some comments are also provided on the current status of guidance in Ireland. 相似文献
160.
When temporal auditory acuity is estimated using time-reversed click pairs, the asymmetry of temporal masking may influence the results. To investigate this hypothesis, we first established normal-hearing listeners’ psychometric functions for the discrimination of time-reversed click pairs. An attempt to relate listeners’ performances in click-pair discrimination to their performances in forward and backward masking tasks was unsuccessful, probably due to the presence of spectral artifact in the temporal masking paradigms. We then investigated listeners’ abilities to discriminate time-reversed click pairs in which the intensity of the lower level click in one pair was altered. This alteration was introduced at random in order to minimize the influence of spectral artifact. Our results suggest that the course of temporal masking influenced the discriminability of the modified click pairs. Thus, the discrimination of time-reversed click pairs may yield a biased estimate of auditory temporal acuity. 相似文献