全文获取类型
收费全文 | 5335篇 |
免费 | 304篇 |
专业分类
5639篇 |
出版年
2024年 | 10篇 |
2023年 | 79篇 |
2022年 | 98篇 |
2021年 | 123篇 |
2020年 | 183篇 |
2019年 | 184篇 |
2018年 | 295篇 |
2017年 | 304篇 |
2016年 | 271篇 |
2015年 | 156篇 |
2014年 | 211篇 |
2013年 | 714篇 |
2012年 | 377篇 |
2011年 | 402篇 |
2010年 | 239篇 |
2009年 | 121篇 |
2008年 | 334篇 |
2007年 | 251篇 |
2006年 | 245篇 |
2005年 | 147篇 |
2004年 | 116篇 |
2003年 | 119篇 |
2002年 | 94篇 |
2001年 | 44篇 |
2000年 | 72篇 |
1999年 | 45篇 |
1998年 | 34篇 |
1997年 | 25篇 |
1996年 | 20篇 |
1995年 | 10篇 |
1994年 | 19篇 |
1993年 | 21篇 |
1992年 | 15篇 |
1991年 | 25篇 |
1990年 | 22篇 |
1989年 | 20篇 |
1988年 | 17篇 |
1987年 | 15篇 |
1986年 | 8篇 |
1985年 | 19篇 |
1984年 | 9篇 |
1983年 | 8篇 |
1981年 | 10篇 |
1979年 | 8篇 |
1978年 | 8篇 |
1974年 | 8篇 |
1971年 | 7篇 |
1968年 | 13篇 |
1966年 | 10篇 |
1965年 | 10篇 |
排序方式: 共有5639条查询结果,搜索用时 0 毫秒
941.
Cooper S Marí-Beffa P 《Journal of experimental psychology. Human perception and performance》2008,34(5):1198-1211
When switching between tasks, participants are sometimes required to use different response sets for each task. Thus, task switch and response set switch are confounded. In 5 experiments, the authors examined transitions of response within a linear 4-finger arrangement. A random baseline condition was compared with the cuing of specific response subsets grouped by hand or by finger equivalence, and these subsets were examined in both single task and task-switching designs. Results showed that part of the task switch cost is associated with switching between response sets. Furthermore, the analysis revealed a novel effect: When task switching and repetition trials are mixed, a bias towards switching the response and/or hand is found in task repetition trials. Response repetition is hindered when a task switch is expected, even for those trials when a switch of task does not occur. The results demonstrate executive processes involved in task set configuration closely depend on the motoric processing of the response set. The results are also important for current theories of task set control. 相似文献
942.
Valentín Escudero Myrna L. Friedlander Nuria Varela Alberto Abascal 《Journal of Family Therapy》2008,30(2):194-214
Positive and negative alliance‐related behaviours of thirty‐seven families seen in brief family therapy were rated from videotapes using the System for Observing Family Therapy Alliances ( Friedlander et al., 2006b ). Positive associations were found between in‐session behaviour and participants' perceptions of the alliance and improvement so far both early (session 3) and later in therapy (session 6). Binary logistic regression showed that successful outcomes (defined as consensus by therapist and all family members on general improvement and reduced problem severity) were significantly predicted by positive individual behaviour (Engagement in the Therapeutic Process, Emotional Connection with the Therapist, Safety within the Therapeutic System) in session 3 and productive within‐family collaboration (Shared Sense of Purpose within the Family) in session 6. Shared Sense of Purpose was the alliance indicator most consistently associated with clients' and therapists' perceptions of therapeutic progress; moreover, it was the only alliance indicator to improve significantly over time in treatment. 相似文献
943.
This research follows the line of investigation opened some years ago about the generalizability studies and variance components applied to soccer. In this investigation, various matches played during the final phase of the last three World Championships (France'98, Korea and Japan'02 and Germany'06) were observed and coded while their interaction contexts were registered. In total, 58 matches were used for this investigation. The following facets were considered: 5 field areas where the 48 contexts are moved or transformed and 7 different types of match result. The results confirm the linear model, which can be generalized to the universe. The resulting 1% of the variance explained by the World Championship facet (1 point when analyzed singly and 14 points when it interacts with the other facets) allows us to confirm that soccer has not changed over the last three World Championships. 相似文献
944.
Research on classroom goal-structures (CGS) has shown the usefulness of assessing the classroom motivational climate to evaluate educational interventions and to promote changes in teachers' activity. So, the Classroom Motivational Climate Questionnaire for Secondary and High-School students was developed. To validate it, confirmatory factor analysis and correlation and regression analyses were performed. Results showed that the CMCQ is a highly reliable instrument that covers many of the types of teaching patterns that favour motivation to learn, correlates as expected with other measures of CGS, predicts satisfaction with teacher's work well, and allows detecting teachers who should revise their teaching. 相似文献
945.
Sánchez Rodríguez SM Peláez del Hierro F Fidalgo de las Heras AM Morcillo Pimentel A Caperos Montalbán JM 《Psicothema》2008,20(4):825-829
In the cooperative breeding system of cotton-top tamarin (TCB; Saguinus oedipus) males gain weight during the last months of pregnancy of their partners as a way to cope with energy costs of reproduction. This phenomenon was described only in humans as a symptom of . As after infants' birth, TCB male and female helpers lose weight, the same as fathers do, it might be expected that previously, they also gain weight. In 8 groups of TCB, we explored body weight changes of the three categories of individuals, in periods of six months, under three different reproductive conditions: control (no pregnancy and without offspring), pregnancy (pregnancy and without offspring), and raising (with offspring). We found that across pregnancy, TCBs increase their weight in the last trimester of that period while across breeding TCBs reduce their weight in the first trimester. Expectant males and also helpers could be preparing during pregnancy in relation to the weight losses they experience when raising their young. 相似文献
946.
The aim of this paper is to use an integrative approach to identify the main correlates and/or predictors at different levels (personal, psychosocial, occupational and outside the workplace) of the burnout dimensions. The sample consists of 813 university professors. Results from statistical analyses show that there are, indeed, both common and specific predictors for the different facets of the syndrome. Specifically, while social support and optimism are selected to confirm all manifestations of burnout, other factors (work hours per week, time in the profession, hardiness, Type A behavioural pattern, life events, daily hassles) do increase the emergence of differential profiles. Lastly, findings are discussed and the main conclusions are presented. 相似文献
947.
Moreno Jiménez B Rodríguez Muñoz A Sanz Vergel AI Rodríguez Carbajal R 《Psicothema》2008,20(4):760-765
A recent number of studies have focused on the relations between psychosocial factors and sleep disturbances. Like other work-related stressors, workplace byllying is associated with several negative consequences. However, few studies have investigated the influence of workplace byllying on disturbed sleep. Insomnia is the most frequent sleep complaint. Several models have highlighted the importance of cognitive factors in the development and maintenance of insomnia. Cognitive styles such as psychological detachment and rumination may be relevant in this process. The aim of the present study is to examine the moderating role of psychological detachment and rumination on the relationship between workplace byllying and insomnia. To minimize the effect of common method variance, we tested our hypothesis using a research design in which we collected data at two points in time separated by 1 month. A total of 523 individuals responded to both phases, with 511 useable surveys. The results of the hierarchical multiple regression analysis provide evidence for the moderating role of psychological detachment and rumination in the workplace byllying process. Thus, these findings are in line with the cognitive models of insomnia. 相似文献
948.
Our objective in this study was to test the new social-cognitive model of achievement motivation in a physical education setting. Research was conducted on a sample of 895 physical education students, ages 12 to 16 years. We measured perception of the motivational climate conveyed by the teacher, implicit beliefs of ability, perceived competence, 2 x 2 achievement goals and self-determined motivation. We carried out structural equation modeling to analyse the relationships among variables. Results showed that task climate positively predicted incremental belief, whereas ego climate positively predicted entity belief. Both climates positively predicted perceived competence. Incremental belief positively predicted mastery-approach goals, performance-approach goals and avoidance goals, whereas entity belief positively predicted performance-approach goals and avoidance goals. Perceived competence positively predicted mastery-approach and performance-approach goals. Mastery-approach goal positively predicted self-determined motivation, whereas performance-approach goal and avoidance goals negatively predicted self-determined motivation. 相似文献
949.
Vallejo Pareja MA Jordán Cristóbal CM Díaz García MI Comeche Moreno MI Ortega Pardo J Amor Andrés PJ Zubeidat I 《Psicothema》2008,20(4):610-615
Although online psychological services and research based on them are increasing rapidly, it is not that easy to find investigations that focus on the kind of people that demand them. To know their profile could help to improve the online psychological services that are offered to them. For this purpose, we analysed the sociodemographic characteristics of 1052 participants, all of them having posed a psychological question to our online advice service. The relations between sociodemographics and variables related to the psychological consultation are analysed herein. Features such as age distribution, a high proportion of long-term problems, the large quantity of questions from Latin America, or the under representation of the lowest socioeconomic and educational levels could lead to clinical, social and legal implications that we comment on in this work. 相似文献
950.
Gálvez-Buccollini JA Paz-Soldan V Herrera P DeLea S Gilman RH Anthony JC 《International family planning perspectives》2008,34(1):15-20
CONTEXT: Alcohol use is frequently identified as a contributor to risky sexual behaviors; however, research results are mixed. Given the conflicting evidence, researchers have focused on other factors, such as expectations about alcohol's effects that might help explain the relationship of alcohol use and risky sexual behaviors. METHODS: Cross-sectional data from 312 sexually experienced males aged 18-30 in a shantytown in Lima, Peru, were used in logistic regression models to identify associations of heavy episodic drinking and sex-related expectations about alcohol with sexual risk behaviors. RESULTS: Heavy episodic drinking was associated with having had two or more sexual partners and having had sex with a casual partner in the past year (odds ratios, 2.8 and 2.5, respectively). After controlling for alcohol consumption, sex-related expectations about alcohol were associated with these high-risk sexual behaviors, as well as with not using a condom at last sex (1.2) and not using a condom at last sex with a casual partner (1.3). CONCLUSION: Beliefs about the effect of alcohol on sexual performance could help explain links between alcohol consumption and risky sexual behavior not completely accounted for by the pharmacological effects of alcohol. 相似文献