全文获取类型
收费全文 | 1771篇 |
免费 | 15篇 |
专业分类
1786篇 |
出版年
2023年 | 12篇 |
2022年 | 8篇 |
2020年 | 21篇 |
2019年 | 21篇 |
2018年 | 32篇 |
2017年 | 36篇 |
2016年 | 44篇 |
2015年 | 46篇 |
2014年 | 35篇 |
2013年 | 165篇 |
2012年 | 64篇 |
2011年 | 67篇 |
2010年 | 47篇 |
2009年 | 50篇 |
2008年 | 72篇 |
2007年 | 63篇 |
2006年 | 70篇 |
2005年 | 52篇 |
2004年 | 60篇 |
2003年 | 66篇 |
2002年 | 66篇 |
2001年 | 25篇 |
2000年 | 23篇 |
1999年 | 29篇 |
1998年 | 37篇 |
1997年 | 38篇 |
1996年 | 25篇 |
1995年 | 33篇 |
1994年 | 31篇 |
1993年 | 34篇 |
1992年 | 32篇 |
1991年 | 23篇 |
1990年 | 26篇 |
1989年 | 21篇 |
1988年 | 18篇 |
1987年 | 21篇 |
1986年 | 17篇 |
1985年 | 21篇 |
1984年 | 16篇 |
1983年 | 24篇 |
1982年 | 15篇 |
1981年 | 27篇 |
1980年 | 24篇 |
1979年 | 26篇 |
1978年 | 16篇 |
1977年 | 13篇 |
1976年 | 21篇 |
1975年 | 10篇 |
1974年 | 7篇 |
1973年 | 8篇 |
排序方式: 共有1786条查询结果,搜索用时 15 毫秒
101.
102.
Linda B. Hassing Boo Johansson Nancy L. Pedersen Sven E. Nilsson Stig Berg Gerald McClearn 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):99-107
We examined the relationship between type 2 diabetes mellitus and cognitive function in a population-based sample of very old people. The sample comprised 338 persons, aged 80-93 years (mean age 83.5 years), of whom 70 persons had type 2 diabetes mellitus. Measures of cognitive functioning included tests of perceptual speed, visuo-spatial ability, inductive reasoning, short-term memory, semantic memory, episodic memory, and the Mini-Mental State Examination. Regression analyses showed that type 2 diabetes mellitus duration was related to test performance across all cognitive domains, with the exception of short-term memory, such that longer duration was associated with lower test performance. When cases with dementia were excluded from the sample, further analyses showed that diabetes duration was not associated with cognitive test performance. This indicates that diabetes is not related to lower cognitive function in the general population of non-demented old people. Diabetes, however, increases the risk for cerebrovascular incidents, like stroke, that may contribute to vascular dementia. 相似文献
103.
104.
Abstract: Findings from this investigation with 81 college students indicate that ideational fluency is a valid predictor of student achievement in an interior design course. Both original and popular ideational fluency as measured by the Multidimensional Stimulus Fluency Measure were related to the course grade, design criteria scores, and the final project grade. Very few studies have found such a clear relationship between performance on any measure of creativity and actual performance in a course. The results suggest that the MSFM is a valuable tool for use in conjunction with other criteria in admissions screening for an interior design program. 相似文献
105.
John P. Vincent Nancy Illback Cook Linzy Messerly 《The American journal of family therapy》2013,41(2):49-68
Abstract This study examined the marital satisfaction and behaviors of 32 couples at one and two months following the births of their first children. Self-report measures of daily satisfaction and daily spouse-observed behaviors were analyzed for patterns approximating those associated with distressed marital interaction identified through earlier social learning studies. Over the time period from 30 to 60 days postnatally, increases were found in spouses' tendency to reciprocate one another's behavior. Except for helpful behaviors involved with care of the infant, spouses at two months postnatally were more likely to reciprocate both irritating and rewarding behaviors than at one month. Nonsignificant decreases in marital satisfaction were accompanied by a mixed pattern of change for spouse-observed behaviors. Predicted changes over time in the proportions of pleasing and displeasing behaviors were evident in only half the comparisons. Increases over time were found for the predictability from spouse-reported daily behaviors to marital satisfaction, but an expected increase in the importance of negative behaviors to the multiple correlation with satisfaction was not obtained. Cross-lagged panel correlation analysis indicated that, for wives, increases in satisfaction at 30 days preceded a parallel increase in their reports of rewarding behaviors and a decrease in aversive behaviors from their husbands at 60 days postnatally. Implications of these findings for identification of couple risk factors for later clinical problems and for early family intervention are discussed. 相似文献
106.
The purpose of this study was to determine the presence of gender differences in the perception of self-competence among 4-year-old children. Sixty-one 4-year-olds (27 girls and 34 boys) from predominantly European American backgrounds participated in the study. The children's self-competence was measured using the Pictorial Scale of Perceived Competence and Social Acceptance for Young Children (Preschool version; S. Harter & R. Pike, 1984), which has 4 separate subscales: (a) cognitive competence, (b) physical competence, (c) peer acceptance, and (d) maternal acceptance. A within-subject 2-way analysis of variance with repeated measures of 4 (subscales of perception of self-competence) × 2 (gender) was performed to determine if gender differences existed in the children's perception of self-competence. Analyses of the data showed no significant gender differences in the scores on the 4 subscales for the perception of self-competence among the children. These results could be interpreted as being due to a less gender-stereotyped society and androgynous environment for these preschoolers. 相似文献
107.
Berlinger N 《Studies in Christian ethics》2003,16(2):80-92
This article explores Dietrich Bonhoeffer's writings on truth telling with reference to the problem of medical error in the US, the UK, and other developed nations, with particular attention to physicians' resistance to disclosing their own mistakes to injured patients and their families. The brief essay 'What is Meant by "Telling the Truth"?' and its historical context--Bonhoeffer's imprisonment and interrogation in 1943--is proposed as a text for medical ethicists and others seeking to overcome the barrier of the 'hidden curriculum' within the culture of medicine, which encourages medical students and physicians to conceal their errors and to fear disclosure. 相似文献
108.
In previous studies of attentional focus effects, investigators have measured performance outcome. Here, however, the authors used electromyography (EMG) to determine whether difference between external and internal foci would also be manifested at the neuromuscular level. In 2 experiments, participants (N=11, Experiment 1; N=12, Experiment 2) performed biceps curls while focusing on the movements of the curl bar (external focus) or on their arms (internal focus). In Experiment 1, movements were performed faster under external than under internal focus conditions. Also, integrated EMG (iEMG) activity was reduced when performers adopted an external focus. In Experiment 2, movement time was controlled through the use of a metronome, and iEMG activity was again reduced under external focus conditions. Those findings are in line with the constrained action hypothesis (G. Wulf, N. McNevin, & C. H. Shea, 2001), according to which an external focus promotes the use of more automatic control processes. 相似文献
109.
Structural Validation of the Hamilton Depression Rating Scale 总被引:1,自引:0,他引:1
Jason C. Cole Sarosh J. Motivala Jeff Dang Anne Lucko Nancy Lang Myron J. Levin Michael N. Oxman Michael R. Irwin 《Journal of psychopathology and behavioral assessment》2004,26(4):241-254
Despite the prolific use of the Hamilton Depression Rating Scale (HDRS), there have been no prior studies using confirmatory factor analysis (CFA) to compare competing HDRS latent structures. The current study undertakes this task, examining CFAs on 397 older adults on the most stable latent models previously posited and a new rationally derived model by Cole and Motivala. CFAs were evaluated in their original first-order structure and in hierarchically related counterparts. All hierarchical models performed significantly better than their first-order counterparts. Moreover, the hierarchical Cole and Motivala model was significantly better on all comparative criteria than any of the other models. However, none of the tested models obtained sufficient fit with the data suggesting psychometric, scoring, or content limitations of the scale. 相似文献
110.
Exploring Feminist Women's Body Consciousness 总被引:3,自引:0,他引:3
In a qualitative investigation of young feminists' experience of body consciousness, 25 feminist women each participated in one of 6 focus groups examining the ways they experienced body image and negotiated cultural messages about women's appearance. Participants described their experience with objectification and its impact on their body image, sense of self, and relationships with other women. Although feminism provided an alternative way to understand cultural messages and reframe negative thoughts, this understanding did not necessarily affect aesthetic reactions. Participants experienced conflict between their feminist beliefs and their feelings about beauty ideals and their own appearance. This conflict is interpreted in terms of a mere exposure effect and existing gender/power relations. Suggestions of ways feminist psychologists can support young women's strategies for resisting negative cultural messages are provided. 相似文献