首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3189篇
  免费   57篇
  国内免费   3篇
教育   2241篇
科学研究   174篇
各国文化   44篇
体育   404篇
综合类   1篇
文化理论   52篇
信息传播   333篇
  2023年   11篇
  2022年   21篇
  2021年   31篇
  2020年   61篇
  2019年   110篇
  2018年   138篇
  2017年   154篇
  2016年   137篇
  2015年   80篇
  2014年   102篇
  2013年   703篇
  2012年   92篇
  2011年   94篇
  2010年   73篇
  2009年   82篇
  2008年   94篇
  2007年   105篇
  2006年   79篇
  2005年   80篇
  2004年   83篇
  2003年   86篇
  2002年   61篇
  2001年   56篇
  2000年   50篇
  1999年   40篇
  1998年   37篇
  1997年   30篇
  1996年   36篇
  1995年   35篇
  1994年   33篇
  1993年   48篇
  1992年   30篇
  1991年   31篇
  1990年   18篇
  1989年   29篇
  1988年   29篇
  1987年   22篇
  1986年   23篇
  1985年   27篇
  1984年   24篇
  1983年   15篇
  1982年   20篇
  1981年   17篇
  1980年   10篇
  1979年   8篇
  1978年   14篇
  1977年   12篇
  1976年   10篇
  1971年   7篇
  1968年   7篇
排序方式: 共有3249条查询结果,搜索用时 31 毫秒
51.
A common practice for counteracting response acquiescence in psychological measures has been to employ both negatively and positively worded items. However, previous research has highlighted that the reliability of measures can be affected by this practice (Spector, 1992). The purpose of the present study was to examine the effect that the presence of negatively worded items has on the internal reliability of the Group Environment Questionnaire (GEQ). Two samples (N = 276) were utilized, and participants were asked to complete the GEQ (original and revised) on separate occasions. Results demonstrated that the revised questionnaire (containing all positively worded items) had significantly higher Cronbach alpha values for three of the four dimensions of the GEQ. Implications, alternatives, and future directions are discussed.  相似文献   
52.
The purpose of this study was to assess the effect of periodized resistance training on accelerative sprint performance. Sixteen physically active men participated in a randomized controlled study. An experimental group (n = 10) completed an 8-week periodized resistance training intervention, while a control group (n = 6) did not train. Pre- and post-training measures of 20-m straight-line sprint time, including a 10-m split, maximum strength, and explosive strength, were recorded. Flight time, stance time, stride length, and stride frequency were quantified from digitized video recordings of the first three strides of the 20-m sprint. Resistance training resulted in significant increases in maximum strength (parallel back squat: 19%) and explosive strength (6-10%). However, both groups increased 0-10 m sprint times (experimental group = 6%; control group = 3%) while 10-20m times were reduced (experimental group = 7%; control group = 4%), highlighting the mechanical differences between the distinct sprint phases. The change during the 0-10m interval was accompanied by a reduction in stride frequency during the first three strides. Strength coaches should be aware that the potential benefits of increased muscular strength during short sprints are likely to be affected by mechanical specificity and that improvements in sprinting performance may not occur immediately after a period of resistance training.  相似文献   
53.
54.
College students' motivational orientations toward learning and their views concerning the purpose of education were examined in relation to various intellectual styles. Task orientation (wherein one's goal is to increase understanding or mastery) was found to be positively associated with Tolerance for Ambiguity, Thoughtfulness, and Open-Mindedness. Ego orientation (wherein one's goal is to outperform others) was negatively associated with Tolerance for Ambiguity, Thoughtfulness, Complexity, and Individualism. Moreover, the views that school's purpose should be to promote understanding and achievement motivation tended to be positively associated with these traits, but the view that school should promote one's wealth and status was not associated with these traits.  相似文献   
55.
With organizations becoming leaner during times of cost consciousness, it is becoming critical that training departments demonstrate their contributions to their bottom lines by becoming more productivity based than they have been historically. For training professionals to obtain the needed financial and organizational support of their training efforts, top management should corroborate the training function. To gain this support, training professionals have evaluation procedures available to them. My purpose for conducting this study was to determine which type of training evaluation method (reaction, learning, behavior, or results) elicited the most management support of the training function among corporate managers. I designed and distributed a case study survey instrument (TEMS) to assess the extent of this support. MBA students with management experience and non-training managers participated in the study. For both samples, the data indicated that the results evaluation format received the most support, with progressively less support for behavior, learning, and reaction evaluations, respectively. I believe that this study provides training practitioners with a mandate for demonstrating training results to top management. It further gives an accountability system for gaining management support of the training function.  相似文献   
56.
Clutch performance is improved performance under pressure. However, little research has examined the psychological state experienced by athletes in these situations. Therefore, this study qualitatively examined the subjective experience underlying clutch performance across a range of sports (e.g., team, individual) and standards (Olympic to recreational athletes). Sixteen athletes (Mage = 27.08 years; SD = 6.48) took part in in-depth, semi-structured interviews primarily after an exceptional performance (M = 4.38 days later; SD = 3.14). Data were analysed inductively and thematically. Clutch states involved 12 characteristics, including heightened and deliberate concentration, intense effort, and heightened awareness, which distinguished the experience of clutch from other optimal psychological states such as flow. Other characteristics, such as perceptions of control, were also reported and supported previous experimental research on clutch. These findings present in-depth qualitative insights into the psychological state underlying clutch performance, and are discussed in relation to the existing literature on optimal psychological states in sport.  相似文献   
57.
58.
Mark Brooke 《Sport in Society》2017,20(9):1297-1309
The study set out to understand the complex landscape of masculinities in Singapore. In particular, it sought to investigate whether, apart from the common muscular and powerful dominant form, there are traditional views of masculinity sustained by Chinese cultural influence, in particular, the culture of Chinese martial arts. Open-ended survey responses from 48 male and female Singaporean first and second year undergraduate students on a sport and critical thinking course were elicited and then followed up by focused online asynchronous discussions to further elaborate understandings. Informants reflected on elements that construct masculinity in Chinese martial arts and how these may differ to what they consider to be the dominant or hegemonic masculinity, related in particular to the body builder. Responses indicate that a residual culture persists nourished by traditional Chinese culture and that this is quite different to the contemporary male identities of metrosexuals and spornosexuals revered in the West.  相似文献   
59.
There have been many conflicting observations between the linear or curvilinear decline in maximal heart rate (HRmax) with age. The aim of this study was to determine if linear or curvilinear equations would better describe the decline in HRmax with age in individuals of differing cardiorespiratory fitness (CRF) levels. Treadmill cardiopulmonary exercise test (CPX) results from participants (1510 men and 1134 women; 18–76 years) free of overt cardiovascular disease were retrospectively examined using cross-sectional and longitudinal study designs. Participants completing ≥2 CPX with ≥1 year between test dates were included in the longitudinal analysis (325 men and 150 women). Linear and quadratic regressions were applied to age and HRmax for the whole cohort and respective CRF groups (high, moderate, and low, relative to age and gender normative values). To test for differences among linear, quadratic, and polynomial equations, the change in R2 (cross-sectional analysis) and Bayesian information criterion (BIC) (longitudinal analysis) from the linear to the more complex models were calculated. The quadratic or polynomial regression in the cross-sectional analysis, marginally improved the variance in HRmax explained by age compared to the linear regression for the whole cohort (0.2%), moderate fit group (0.3%), and low fit group (0.8%). With no improvements in the high fit group. BIC did not improve for any CRF category in the longitudinal analysis. In conclusion, the minimal differences among linear, quadratic, and polynomial equations in the respective CRF groups, emphasizes the use of linear prediction equations to estimate HRmax.  相似文献   
60.
Abstract

The aim of the study was to explore the significance of the ‘timing’ of the quiet eye (QE), and the relative importance of late (online control) or early (pre-programming) visual information for accuracy. Twenty-seven skilled golfers completed a putting task using an occlusion paradigm with three conditions: early (prior to backswing), late (during putter stroke), and no (control) occlusion of vision. Performance, QE, and kinematic variables relating to the swing were measured. Results revealed that providing only early visual information (occluding late visual information) had a significant detrimental effect on performance and kinematic measures, compared to the control condition (no occlusion), despite QE durations being maintained. Conversely, providing only late visual information (occluding early visual information) was not significantly detrimental to performance or kinematics, with results similar to those in the control condition. These findings imply that the visual information extracted during movement execution – the late proportion of the QE – is critical when golf putting. The results challenge the predominant view that the QE serves only a pre-programming function. We propose that the different proportions of the QE (before and during movement) may serve different functions in supporting accuracy in golf putting.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号