全文获取类型
收费全文 | 3241篇 |
免费 | 1396篇 |
出版年
2023年 | 4篇 |
2022年 | 2篇 |
2021年 | 75篇 |
2020年 | 87篇 |
2019年 | 381篇 |
2018年 | 272篇 |
2017年 | 383篇 |
2016年 | 368篇 |
2015年 | 341篇 |
2014年 | 298篇 |
2013年 | 494篇 |
2012年 | 276篇 |
2011年 | 199篇 |
2010年 | 240篇 |
2009年 | 210篇 |
2008年 | 190篇 |
2007年 | 110篇 |
2006年 | 100篇 |
2005年 | 112篇 |
2004年 | 84篇 |
2003年 | 93篇 |
2002年 | 96篇 |
2001年 | 78篇 |
2000年 | 68篇 |
1999年 | 35篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 4篇 |
1993年 | 2篇 |
1992年 | 6篇 |
1991年 | 3篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 3篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1961年 | 1篇 |
1954年 | 1篇 |
排序方式: 共有4637条查询结果,搜索用时 15 毫秒
111.
112.
This study analyzed whether a ball with a higher (540-g) or lower (440-g) mass than the regulation ball (485-g) resulted in a larger number of participants gaining ball possession during games. Prior studies have indicated that ball handling is facilitated by decreasing the mass of the ball. It was assumed that a greater number of children gaining possession of the ball indicated greater ease of use and more control. Thus, the hypothesis was that the number of participants who gained ball possession would increase when using a ball of lower mass. The participants were 54 boys from six youth basketball teams. Participants played four games with each one of the three different balls and the number of possessions was calculated using videos of each game. The hypothesis was only partially supported: the number of participants who gained possession with the regular ball was similar to that with the 440-g ball and with the 540-g ball, but a greater number of participants gained possession with the 440-g ball in comparison to the 540-g ball. This result suggests balls that differ by more than 65 g may affect actual game outcomes. 相似文献
113.
Vera-Villarroel P Zych I Celis-Atenas K Córdova-Rubio N Buela-Casal G 《Psychological reports》2011,109(1):47-58
Posttraumatic stress disorder (PTSD) is an anxiety disorder in which an individual re-experiences a traumatic event, avoids situations related to it, and shows excessive arousal. The disorder appears after experiencing a life-threatening event, such as a war or a natural disaster. Thus, the validation of tests which assess the disorder after the earthquake on February 27, 2010, in Chile is crucial for its evaluation and subsequent intervention. The present study includes psychometric data for the Posttraumatic Stress Disorder Checklist-Civilian version (PCL-C) on a sample of 509 survivors of the disaster. Values indicate good psychometric properties of the questionnaire. 相似文献
114.
Brooke Natalie Barnum‐Roberts 《Ratio》2011,24(1):17-27
A common belief about the nature of agent regret is that regretting some event E is closely linked to being sorry for the occurrence of E. Or more specifically, that if one is sorry for E then she must regret E. I will call this ‘the sorry‐regret hypothesis’. My contention is that one may be sorry for some action but not regret it. I take the rejection of this ‘truism’ to be a positive development. I offer two lines of argument for rejecting the sorry‐regret hypothesis. One line of argument is based on counterexamples. The second attacks the validity of a reconstructed argument for the sorry‐regret hypothesis. It is desirable to reject the sorry‐regret hypothesis since there is a component of regret that many will not wish to be saddled with as a condition of apologizing. To regret an act, one must wish that she had not performed that act. Since a person is the person she is (speaking loosely) because of the actions she has performed, for many actions, if one regrets an action, then she wishes that she were a different person. This is a worrisome consequence. 相似文献
115.
This study clarifies the definition of calling—a consuming, meaningful passion people experience toward a domain—and develops a 12‐item scale measure of calling. Drawing on multiwave longitudinal, 2‐wave longitudinal, and cross‐sectional data from 1,500 participants (2,278 observations) in 4 separate domains, music, art, business, and management, we demonstrate the scale's reliability and unidimensional structure across contexts and over time. We establish the scale's convergent validity and discriminant validity. We determine criterion‐related validity through the scale's relationship to satisfaction with the calling domain, career‐related self‐efficacy, clarity of professional identity, career insight, attending a calling‐oriented college program, professional pursuit of the calling domain, and differences across the 4 domains. We discuss implications of this reliable, valid measure for theory and research on calling, meaning of work, and careers. 相似文献
116.
117.
Slioussar N 《Journal of psycholinguistic research》2011,40(4):291-306
In languages with flexible constituent order (so-called free word order languages), available orders are used to encode given/new distinctions; they therefore differ not only syntactically, but also in their
context requirements. In Experiment 1, using a self-paced reading task, we compared Russian S V IO DO (canonical), DO S V
IO and DO IO V S constructions in appropriate vs. inappropriate contexts (those that violated their context requirements).
The context factor was significant, while the syntax factor was not. The less pronounced context effect evidenced in previous
studies (e.g., Kaiser and Trueswell in Cognitioin 94:113–147, 2004) might be due to the use of shorter target sentences and less extensive contexts. We also demonstrated that the slow-down
starts at the first contextually inappropriate constituent, which shows that the information about context requirements is
taken into account immediately, but that it develops faster on preverbal subjects and postverbal indirect objects (occupying
their canonical positions) than on preverbal indirect objects (occupying a noncanonical position, or scrambled). In Experiment 2, these findings were replicated for IO S V DO and IO DO V S orders. S V IO DO orders with a continuation
were used to show that there is no additional effect of inappropriate context at the end of the sentence. 相似文献
118.
Tatiana Glebova Suzanne Bartle‐Haring Rashmi Gangamma Michael Knerr Robin Ostrom Delaney Kevin Meyer Tiffany McDowell Katie Adkins Erika Grafsky 《Journal of Family Therapy》2011,33(1):42-65
Therapeutic alliance research in couple therapy using multiple perspectives and longitudinal data has been sparse. This study used structural equation modelling to explore relationships between changes in alliance and in progress from clients' and therapists' perspective in a fairly large sample of couples (N=195) during the initial stage of therapy at an on‐campus training clinic. Self‐rated alliance was measured after sessions 2 through 4 with the Working Alliance Inventory. There was very little change in alliance over the early sessions of therapy, and changes in alliance did not always account for changes in relationship satisfaction. Husbands' perceptions of satisfaction and alliance seem to play an important role in the dynamics of the therapeutic process. Findings suggest a reciprocal relationship between perceptions of alliance and progress in therapy when combining perceptions of therapists and couple clients. Clinical implications and future research are discussed. 相似文献
119.
Literature in the area of social networks indicates that increases in perceived social network attitudinal heterogeneity generate increased openness to attitude change. Recent evidence in the area of morality, however, shows that morally based attitudes are particularly resistant to persuasion and can result in the rejection of disagreeing others. Positing that considering morality would reduce network influence, an experiment varied moral cues presented along with a non‐network persuasive message while holding the actual content constant. Results demonstrate that morality and network composition interact to predict persuasion, such that when people are not cued to consider morality increased network heterogeneity predicts increased persuasion, but when identical messages are presented in a way that invokes morality the impact of network heterogeneity disappears or even reverses marginally. This interactive effect was replicated in two very different political issues: gay adoption and nationalized healthcare. Implications for persuasion by morally motivated sources independent of the effects of specific moral arguments are discussed. 相似文献
120.
Although homework completion is said to be rather important to achievement, nowadays there is a growing concern of educators about the increasing number of students who do not engage properly on doing the homework tasks and the subsequent impact on school failure rates. Focusing on English as a Foreign Language (EFL) and using a sample of 591 Portuguese fifth and sixth graders, the present study analyses the role played by a number of homework variables on students' achievement (proximal and distal), and their mediating role on the use of self-regulated learning strategies and perceived self-efficacy in the domain. Data confirm the indirect effect of homework on school achievement, by means of the referred cognitive and motivational variables (use of self-regulated learning strategies and self-efficacy). These findings are further discussed in order to highlight the significant role homework completion can play on fighting school failure. 相似文献