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971.
972.
ABSTRACTThis study addressed the paucity of evidence of whether visual anticipation can be improved in emerging experts in striking sports. Twelve emerging expert batsmen from a state cricket squad were equally randomised into intervention and control groups. They were pre-and-post tested on a video temporal occlusion test of a fast bowler, as well as transfer tests of different fast and slow bowlers. The intervention group received two sessions per week of point-light display temporal occlusion training with motor practice of the observed bowler’s action over a 4-week period. The control group completed only the testing phases. Batting averages before, during, and after the study were recorded for both groups. The intervention group, but not the control group, improved anticipation to significantly above chance level across pre-to-post-tests based upon pre-ball flight information. The intervention, but not the control, transferred their learning to anticipate significantly above chance level based upon pre-ball flight information across different fast and slow (spin) bowlers. Batting average of the intervention group was higher than the control group during the study. Findings indicate that the intervention can improve anticipation in emerging expert batsmen, beyond sport-specific practice. This improvement may benefit competition performance, but further evidence is required. 相似文献
973.
Abstract The purpose of this investigation was to determine whether combining two mental preparation strategies would be more effective in enhancing performances than a single strategy. Subjects (n = 40) practiced on a basketball free throw task (20 shots) using one of the following mental preparation strategies: (a) imagery, (b) relaxation, (c) relaxation plus imagery, (d) placebo control. To simulate game conditions, subjects were allowed only 10 s in which to use their mental preparation strategy. After the practice session, subjects shot 20 test free throws using their designated technique. Results indicated a significant main effect with the imagery group performing significantly better than the placebo control group although there were no specific differences between the three experimental groups. The results are discussed in terms of potential variables mediating the effectiveness of imagery in enhancing sport performance, and future directions for research are offered. 相似文献
974.
The purpose of the present investigation was to determine the effect of monetary rewards and success/failure on intrinsic motivation and causal attributions of males and females competing on a motor task. Multivariate analysis of variance produced a significant overall main effect for feedback, with subjects exhibiting more intrinsic motivation after success than after failure. The Sex × Feedback interaction (p < .09) indicated that males exhibited more intrinsic motivation than females after success, whereas females displayed more intrinsic motivation than males after failure. Attribution results showed that success was primarily attributed to high ability, high effort, and good luck while failure was attributed to low ability, low effort, and bad luck. Correlational analysis revealed that success was related to high ability, high effort, good luck, and high intrinsic motivation. Conversely, failure was associated with low ability, low effort, bad luck, and low intrinsic motivation. In addition, ability and effort were the causal attributes most related to changes in intrinsic motivation. The relationship between causal attributions and intrinsic motivation is discussed in terms of the self-enhancement hypothesis and Deci's cognitive evaluation theory. Implications for competitive physical activity are drawn. 相似文献
975.
Sai Chuen Hui Pak Y. Yuen James R. Morrow Jr. Allen W. Jackson 《Research quarterly for exercise and sport》2013,84(4):401-406
Abstract The stages of motivational readiness as conceptualized by the Transtheoretical Model have been widely used among adult samples to assess readiness for adopting exercise behavior. To date, little research has been conducted using a staging framework with adolescent samples. There is a need for validation of the staging framework prior to a substantial amount of research with this age group. The current article presents two studies assessing stage and reported exercise behavior (Study 1: n = 819; M age = 15.0 years, SD = 1.2; 51 % men; Study 2: n = 184; M age = 18.6 years, SD = .5; 45 % men). As hypothesized in both studies, reported exercise consistently varied as a function of stage classification; those in earlier stages of readiness reported less exercise than those in later stages. Staging algorithms showed good sensitivity to detect reported exercise; however, specificity was distinctly better with the algorithm that used a specific activity criterion and immediate intention, as opposed to irregular behavior, in defining the preparation stage. Results support the validity of the staging framework for measuring motivational readiness for exercise behavior among North American adolescents. 相似文献
976.
977.
The extent to which peer influences on substance use in adolescence systematically vary in strength based on qualities of the adolescent and his or her close friend was assessed in a study of 157 adolescents (age: M = 13.35, SD = 0.64), their close friends, and their parents assessed longitudinally with a combination of observational, analogue, sociometric, and self-report measures from early to mid adolescence. The degree to which adolescents changed their levels of substance use in accord with their peers' baseline levels of use was predicted by a range of theoretically salient factors including: observed teen lack of autonomy and social support in prior interactions with mothers, low teen refusal skills, and the level of social acceptance of their close friend. Findings suggest the importance of both internal factors (e.g., autonomy and relatedness struggles) and external factors (e.g., social status of friends) in explaining why vulnerability to peer influence processes may be much greater for some adolescents than others. 相似文献
978.
Since its inception in 1999, the distributed leadership framework of Spillane, Halverson, and Diamond [2004. “Towards a Theory of Leadership Practice: A Distributed Perspective.” Journal of Curriculum Studies 36 (1): 3–34. doi:10.1080/0022027032000106726] has supported research into leadership and change in schools. Whilst the conceptual integrity of the framework is sound, research based upon its premises has attracted some criticism. The research has had a narrowed focus which has not generally reflected the inseparability of the elements of the framework and the situation within which leadership is enacted. In addition, it often fails to account for the complexity of critical elements of the environment such as micropolitics. This position paper proposes a reconfiguration of the distributed leadership framework as a research framework in response to this critique. The paper asserts that this new perspective that is presented is able to respond to the critique through an integrated approach that encompasses situation, social distribution and task enactment and which supports an integrated approach to research methodology. This adapted framework has the potential to more fully support research design that is actuality holistic and embedded in the context. 相似文献
979.
The implications of an across-the-board salary increase for selected outcomes are assessed. While such an approach to employee compensation is easily administered, the results of this analysis suggest that such an approach has some long-run costs. Those perceiving themselves as high performers and as putting forth greater effort felt undercompensated. Those with feelings of being undercompensated, relative to those feeling equitably compensated, anticipated a reduction in their job performance during the coming year, and perceived a deterioration in the association between performance and compensation. Differences in intentions to search for alternative employment are statistically significant. 相似文献
980.
The Urban Review - The following is a review of the text Shoptalk: Lessons in Teaching from an African American Hair Salon, by Majors (2017). In this text, the author asserts that adopting... 相似文献