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71.
Abstract

Two experiments were conducted to investigate the effects of competition and instructional sets on the speed and accuracy of a dart-throwing task. In both experiments individuals competed against another subject on one day, and performed under noncompetitive conditions on a second day. The five distinct instructional sets varied from extreme emphasis on speed to extreme emphasis on accuracy. Multivariate analyses of variance revealed main effects for instructional sets on speed and accuracy in both experiments. Strong tradeoffs occurred with speed slowing and accuracy improving as the instructional emphasis changed from speed to accuracy. A competition by instructional sets interaction in Experiment 2 indicated that competition facilitated speed when speed was important, but when instructions emphasized accuracy, speed was slower in competition than in noncompetition. Accuracy was not affected by competition.  相似文献   
72.
Abstract

The purpose of this study was to evaluate the attitudes, knowledge, and activity behaviors of college graduates who completed a lecture-laboratory (concepts) course in physical education during their undergraduate study. Serving as controls were college graduates of the same university who transferred to the university and who received credit for a traditional rather than a concepts course. Both groups were compared to college graduates who “quizzed out” of the concepts course rather than enrolling in the class. Subjects were randomly selected from the 1977 and 1979 graduating classes. All those selected as subjects received a questionnaire containing an attitude test, a knowledge lest, and an activity checklist. Fifty-nine percent of the 300 questionnaires were returned. Multivariate analyses indicated that the concepts groups possessed attitude-knowledge-activity profiles which differed from those of either of the other groups. Though differences were not uniform for the two years studied, knowledge was consistently the greatest contributor to differences between transfer and concepts groups. Univariate and combined year analyses indicated that, though less consistent than the knowledge differences, attitude and activity differences among groups also existed. In general, the results suggested that a college level conceptual physical education class can have positive long term effects.  相似文献   
73.
This study was designed to examine the role of foot type, height, leg length, and range of motion (ROM) measurements on excursion distances while performing the Star Excursion Balance Test (SEBT), a test of dynamic postural control. Participants (n = 30) performed 3 trials of the SEBT in each of the 8 directions while balancing on the right and left legs. No statistically significant relations were found between foot type or ROM measurements and excursion distances with the SEBT. Significant correlations were revealed between height and excursion distance and leg length and excursion distance with leg length having the stronger correlation. Using raw excursion measures, males were found to have significantly greater excursion distances than females; however, after normalizing excursion distances to leg length, there were no significant differences related to gender. In conclusion, when using the SEBT for experimental or clinical purposes, participants' excursion distances should be normalized to leg length to allow for a more accurate comparison of performance among participants.  相似文献   
74.
The aim of this paper is to present the case for phronetic social science as an appropriate lens through which to view sports coaching. In doing so, we firstly define and then elaborate upon the principal concepts contained within phronetic social science as related to complex action, flexibility, moral reflection and power. By locating them within recent coaching research, the case is further made how such concepts can help coaching scholars and coaches to better understand the activity of coaching. Finally, a conclusion draws together the main points made, particularly in terms of how using such a perspective and conceptualisation of coaching could benefit future coach education programmes.  相似文献   
75.
ABSTRACT

School-based sports and physical education play an important role in the development of youth (Jones, Edwards, et al., 2017), but participation in athletics is unequal for lesbian, gay, bisexual, transgender, and queer (LGBTQ) youth compared to their straight/cisgender peers [Greenspan, S. B., Griffith, C., & Murtagh, E. F. (2017). LGBTQ youths’ school athletic experiences: A 40-year content analysis in nine flagship journals. Journal of LGBT Issues in Counseling, 11(3), 190–200]. Sport cultures, generally, recreate dynamics of exclusion for marginalized youth. However, there are opportunities to transform these spaces into more inclusive and positive environments to support positive growth for all young people [Newman, T., Alvarez, A., & Kim, M. (2017). An experiential approach to sport-based positive youth development. Journal of Experiential Education, 40(3), 308–322]. Our study uses a data set of adolescents, collected as part of a community-based participatory action research project led by high school students in southeast Michigan, USA. Respondents reported their sexual and gender identities, as well as experiences in youth sport, as well as safety using sex-segregated facilities (i.e., bathrooms and locker-rooms). Using mediation models based on linear regression, we found evidence that LGBQ high school students play sports at a significantly lower rate compared to straight students, and among those who play sports, LGBTQ respondents felt significantly less safe compared to straight and cisgender students. Opposite to the LGBQ and trans youth in this study, straight/cisgender youth also reported feeling safer using all facilities. The mediation models suggest that these inequalities help to explain disparities in rates of sports participation and feelings of safety while participating. These findings have important implications for policy, practice, and future research.  相似文献   
76.
Abstract

This study investigated the effects of three types of recovery procedure on (a) circulatory recovery from a standardized bicycle ergometer exercise, (b) performance in a second standardized bicycle ergometer exercise, and (c) circulatory recovery from the second exercise. The recovery procedures were complete rest, light activity, and cold showers. Each of 10 male subjects underwent each recovery procedure on separate days. Analysis of variance for a randomized complete blocks design was used in the analysis of the data. Results indicated that cold showers decreased recovery heart rate after the first standardized exercise from 115 to 96 beats/minute and after the second exercise from 164 to 152 beats/ minute when compared with the other two conditions. Speed of performance in the second exercise was improved from 40.4 and 40.3 sec. in the case of rest and light activity to 38.9 sec. for cold showers. These improvements were all statistically significant at the .05 level. Three physiological explanations, not necessarily independent, are advanced: (a) local vasoconstriction of the skin vessels and vasodilatation of the muscle vessels causing a greater proportion of total blood flow to the working muscles, (b) establishment of a greater thermal gradient between the core and shell of the body allowing heat movement to the surface of the body by conduction between tissues rather than by skin blood flow, and (c) a decrease in sweat rate, thereby suppressing release of bradykinin, a vasodilator substance.  相似文献   
77.
Abstract

This study was designed to determine if intrinsically programed materials and techniques can be effectively used to teach a health education unit to secondary school students, and to compare levels of achievement resulting from the utilization of programed materials as opposed to traditional classroom methods. Twelve secondary school health education classes in New York City, involving 343 students, were divided into matched groups. Branched, self-teaching materials on the topic of alcohol education were presented to the experimental group to be studied at home for a 3-day period without recourse to classroom instruction. The control group was taught the topic in a 3-day unit utilizing traditional classroom teaching techniques. The results of the achievement test administered at the conclusion of the unit indicate that branched or intrinsically programed materials and techniques can be effectively used in the teaching of a secondary school health education unit and that in this particular investigation the experimental group learned significantly more than the control group.  相似文献   
78.
Abstract

Relative isometric endurance tests of 50, 60, 70, and 80 percent weight loads were used to evaluate the muscular endurance of three groups of male college students. The 47 students were grouped according to level of athletic achievement. Analysis of variance models failed to detect any differences between the endurance of the three groups. Consideration was given to the use of relative endurance tests for evaluating levels of motivation.  相似文献   
79.
Abstract

This study was designed to determine whether there was a difference in the effectiveness of the traditional method and the movement exploration method of teaching physical education activities to elementary school girls. Four classes of fourth-grade girls (N = 67) were randomly assigned to the experimental conditions. A 2 × 2 × 3 factorial ANOVA with repeated measures on the last factor was used to analyze the data. The first factor consisted of the traditional and movement exploration teaching methods. The second was a combination of instructional time and retention time. The third was test period and had three levels: pretest, posttest, and retention test. Skills taught were gymnastics and tumbling, and basketball. It was concluded that a combination of methods should be used in teaching elementary school physical education activities, depending upon the activities to be taught. A four-week unit (two 50-min periods per week) is suggested as the appropriate length for nine and ten year olds.  相似文献   
80.
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