全文获取类型
收费全文 | 2863篇 |
免费 | 89篇 |
国内免费 | 8篇 |
专业分类
2960篇 |
出版年
2021年 | 16篇 |
2020年 | 35篇 |
2019年 | 54篇 |
2018年 | 72篇 |
2017年 | 64篇 |
2016年 | 66篇 |
2015年 | 51篇 |
2014年 | 57篇 |
2013年 | 354篇 |
2012年 | 104篇 |
2011年 | 96篇 |
2010年 | 76篇 |
2009年 | 64篇 |
2008年 | 92篇 |
2007年 | 109篇 |
2006年 | 97篇 |
2005年 | 102篇 |
2004年 | 108篇 |
2003年 | 92篇 |
2002年 | 93篇 |
2001年 | 45篇 |
2000年 | 40篇 |
1999年 | 53篇 |
1998年 | 52篇 |
1997年 | 34篇 |
1996年 | 61篇 |
1995年 | 51篇 |
1994年 | 53篇 |
1993年 | 48篇 |
1992年 | 50篇 |
1991年 | 34篇 |
1990年 | 39篇 |
1989年 | 39篇 |
1988年 | 34篇 |
1987年 | 37篇 |
1986年 | 34篇 |
1985年 | 48篇 |
1984年 | 32篇 |
1983年 | 44篇 |
1982年 | 40篇 |
1981年 | 31篇 |
1980年 | 31篇 |
1979年 | 19篇 |
1978年 | 25篇 |
1977年 | 22篇 |
1976年 | 18篇 |
1975年 | 16篇 |
1974年 | 22篇 |
1973年 | 17篇 |
1971年 | 11篇 |
排序方式: 共有2960条查询结果,搜索用时 0 毫秒
811.
Mary F. Catanzaro 《Journal of Aging and Identity》1999,4(1):13-31
One of the great writers of Twentieth-century doubt, Samuel Beckett is perhaps best known for endowing his protagonists with some of the more classic symptoms of anxiety and depression. The result is an extraordinary corpus that unfolds how the intricacies and excesses of anxiety affect the behavior of men and women involved in intimate relationships, and how that behavior is exhibited in their aging years. While this discussion of Krapp's Last Tape (1960) and That Time (1976) will explore anxiety from a specifically male point of view, the works themselves compel various responses from readers of both sexes. Both pieces also may be of interest to those concerned with the rethinking of sexual roles in intimate relationships in light of an individual's response to the physical and emotional aspects of aging. 相似文献
812.
813.
Mary Jane Rotheram-Borus Marya Gwadz M. Isa Fernandez Shobha Srinivasan 《American journal of community psychology》1998,26(1):73-96
Examined the effectiveness of an HIV intervention program among 151 adolescents ages 13 to 24 years who were randomly assigned to (a) seven sessions of 1.5 hr each (10.5 hr); (b) three sessions of 3.5 hr each (10.5 hr); or (c) a no-intervention condition. Using cognitive-behavioral intervention strategies, social skills and HIV-related beliefs, perceptions, and norms were targeted in both the three- and seven-session, small-group intervention conditions. Regression analysis indicated that over 3 months, the number of unprotected risk acts and the number of sexual partners were lower in the seven-session condition compared to the other conditions. Factors mediating risk acts changed in a complex manner: For example, perceived vulnerability increased for those with initially lower vulnerability scores among youths in the seven-session condition compared to others. Self-approval of condom use was also higher for those with initially low scores in the seven-session compared to the three-session condition. Self-efficacy for risk avoidance and condom use was significantly higher in the three-session condition for those with initially low scores compared to other groups. On the role-play measure, those with higher baseline scores in the low-pressure situation improved significantly only in the three-session intervention; in the high-pressure situation, the participants reported significantly higher scores in the seven-session intervention, and those with higher scores improved the most. Results suggest the importance of multisession HIV intervention programs to be delivered with fidelity in community settings. 相似文献
814.
Mary Ann Glynn 《Journal of business and psychology》1998,13(2):193-209
This study examined the main and interactive effects on satisfaction of managers' functional position and disposition, measured by two inversely related indices of work orientation—instrumental, or desiring job security and financial rewards from work, and expressive, or desiring self-actualization and achievement from work (O'Reilly, 1977). Results indicated that both situational and dispositional factors affect satisfaction. Managers in process-oriented functions (e.g., Personnel, Sales) were significantly more satisfied than those in outcome-oriented functions (e.g., Production, Operations). Managers with strong and unambiguous orientations (high expressive/low instrumental or high instrumental/low expressive) were more satisfied than managers with strong, but potentially conflicting orientations (high instrumental/high expressive) or weak orientations (low instrumental/low expressive). There was also a personality-situation interaction, suggesting the feasibility of a congruency model in explaining managers' satisfaction. Theoretical and practical implications for career choices and managerial development are discussed. 相似文献
815.
George R. Holmes Joseph Cautela Mary A. Simpson Patricia S. Motes Joshua M. Gold 《Journal of Behavioral Education》1998,8(1):131-140
The School Reinforcement Survey Schedule (SRSS) was administered to 5913 4th through 12th graders as part of an evaluation component of the University of South Carolina's Institute for Families in Society's School-Based Mental Health Project. A factor analysis of SRSS responses yielded six interpretable factors. Gender differences in responses showed that girls, as opposed to boys, find a wider variety of reinforcers associated with school to be pleasurable. A significant, but small, correlation was found between grades and school reinforcement. 相似文献
816.
Susan J. Wood Jane Y. Murdock Mary E. Cronin Nancy M. Dawson Peggy C. Kirby 《Journal of Behavioral Education》1998,8(2):263-279
The purposes of this study were to evaluate the effects of self-monitoring on increasing the on-task behaviors of four at-risk middle school students, and to examine its indirect effects on academic performance. Additionally, we attempted to develop and validate cost- and time-efficient procedures that typical classroom teachers could use. The data from a multiple baseline design across three academic settings, replicated with four students, revealed immediate increases in on-task behavior as each student began to self-monitor in each sequential setting. The data also revealed slightly higher levels of academic performance and, in most instances, gradually accelerating trends. These findings suggest that self-monitoring is a cost- and time-efficient procedure that classroom teachers can use to teach at-risk students to manage their own behaviors. 相似文献
817.
Mary W. Meagher Paul A. Illich Juan A. Salinas 《Neurobiology of learning and memory》1998,70(3):374-387
Past research indicates that the anticholinergic drug scopolamine disrupts memory and environmentally induced hypoalgesia in rats. The present study examined the impact of the centrally active cholinesterase inhibitor physostigmine, which enhances memory and central cholinergic activity, on brief shock-induced hypoalgesia on the tail-flick test using Sprague–Dawley rats. It is reported that physostigmine (0.1 mg/kg) potentiates the magnitude of this hypoalgesia. Contrary to past research, our results showed that omission of baseline testing did not eliminate hypoalgesia or its potentiation by physostigmine. Similar to its effects on memory, physostigmine (0.04, 0.1, and 0.25 mg/kg) has a nonmonotonic impact on brief shock-induced hypoalgesia; low doses potentiated hypoalgesia (0.1 mg/kg), whereas a high dose (0.25 mg/kg) disrupted it. These results provide further evidence that the cholinergic system indirectly affects pain reactivity by modulating the memory of the aversive event. 相似文献
818.
We tested the hypothesis that common stimuli are stored in memory better than bizarre stimuli are. Subjects memorized a series of noun pairs embedded within 20 common or bizarre sentences. By using a between-list design, free and cued recall, and intentional-learning instructions, we were able to obtain a commonness effect (i.e., a recall advantage for the common sentences). Riefer and Rouder’s (1992) multinomial processing-tree model for measuring storage and retrieval was applied to the data, which revealed that the recall advantage for common sentences was due to storage and not retrieval processes. We propose a two-factor theory: that common items are stored better in memory, but that bizarre items are retrieved better from memory. This storage-retrieval explanation does a good job of accounting for a number of findings associated with the bizarreness effect. 相似文献
819.
820.
Properties of cognitive maps constructed from texts 总被引:2,自引:0,他引:2
Subjects in three experiments read texts describing the locations of landmarks in a fictitious town. Later they drew sketch maps and verified sentences describing the relative locations of the landmarks. We predicted that subjects would develop mental models of the town that were organized around important landmarks (“anchors”), as are cognitive maps constructed through real-world navigation. More specifically, we expected that landmarks used in the text as reference points for describing the locations of some other landmarks would emerge as anchors in the subjects’ cognitive maps and would consequently be recalled more accurately. Results showed that subjects represented such reference-point landmarks more accurately than they did the locations of other landmarks. This effect was independent of: (1) the perspective from which the text was written (route or survey); (2) whether or not a map was present at learning; (3) the order of information in the text (linear or anchors-first), and (4) the amount of information available to the subjects while drawing sketch maps (the full text, the landmark names only, or no information). 相似文献