全文获取类型
收费全文 | 11478篇 |
免费 | 99篇 |
国内免费 | 12篇 |
专业分类
教育 | 7407篇 |
科学研究 | 2134篇 |
各国文化 | 82篇 |
体育 | 793篇 |
综合类 | 5篇 |
文化理论 | 76篇 |
信息传播 | 1092篇 |
出版年
2021年 | 97篇 |
2020年 | 136篇 |
2019年 | 221篇 |
2018年 | 274篇 |
2017年 | 252篇 |
2016年 | 196篇 |
2015年 | 151篇 |
2014年 | 208篇 |
2013年 | 2058篇 |
2012年 | 232篇 |
2011年 | 207篇 |
2010年 | 184篇 |
2009年 | 172篇 |
2008年 | 169篇 |
2007年 | 189篇 |
2006年 | 148篇 |
2005年 | 153篇 |
2004年 | 148篇 |
2003年 | 138篇 |
2002年 | 133篇 |
2001年 | 171篇 |
2000年 | 177篇 |
1999年 | 163篇 |
1998年 | 86篇 |
1997年 | 91篇 |
1996年 | 117篇 |
1994年 | 98篇 |
1993年 | 94篇 |
1992年 | 136篇 |
1991年 | 146篇 |
1990年 | 149篇 |
1989年 | 166篇 |
1988年 | 125篇 |
1987年 | 122篇 |
1986年 | 162篇 |
1985年 | 156篇 |
1984年 | 130篇 |
1983年 | 132篇 |
1982年 | 117篇 |
1981年 | 100篇 |
1980年 | 106篇 |
1979年 | 142篇 |
1978年 | 124篇 |
1977年 | 107篇 |
1976年 | 103篇 |
1974年 | 115篇 |
1973年 | 93篇 |
1972年 | 87篇 |
1971年 | 109篇 |
1970年 | 84篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
Effect of hand paddles and parachute on the index of coordination of competitive crawl-strokers 总被引:1,自引:1,他引:0
We investigated the effects of hand paddles and parachute on the relative duration of stroke phases and index of coordination of competitive crawl-strokers. Eleven male-swimmers (age: 21.9 ± 4.5 years; 50-m best time: 24.23 ± 0.75 s) were evaluated in four maximal-intensity conditions: without equipment, with hand paddles, with parachute, and with both hand paddles and parachute. Relative stroke phase duration of each arm, swimming velocity, and stroke rate were analysed from video (60 Hz). The index of coordination was quantified based on the lag time between propulsive phases of each arm, which defined the coordination mode as catch-up, opposition or superposition. The stroke rate decreased in all conditions (P < 0.05) and swimming velocity decreased with parachute and with paddles + parachutes (P < 0.05). The coordination mode changed from catch-up in free swimming (-2.3 ± 5.0%) to opposition with paddles (-0.2 ± 3.8%), parachute (0.1 ± 3.1%), and paddles + parachute (0.0 ± 3.2%). Despite these variations, no significant differences were observed in relative duration of right and left arm-stroke phases, or in index of coordination. We conclude that the external resistances analysed do not significantly influence stroke phase organization, but, as a chronic effect, may lead to greater propulsive continuity. 相似文献
942.
We assessed how golfers cope with the commonly observed systematic overshoot errors in the perception of the direction between the ball and the hole. Experiments 1 and 2, in which participants were required to rotate a pointer such that it pointed to the center of the hole, showed that errors in perceived direction (in degrees of deviation from the perfect aiming line) are destroyed when the head is constrained to move within a plane perpendicular to the green. Experiment 3 compared the errors in perceived direction and putting errors of novice and skilled players. Unlike the perceived direction, putting accuracy (in degrees of deviation from the perfect aiming line) was not affected by head position. Novices did show a rightward putting error, while skilled players did not. We argue that the skill-related differences in putting accuracy reflect a process of recalibration. Implications for aiming in golf are discussed. 相似文献
943.
黄阳 《南昌教育学院学报》2014,(6):56-58
开设大学生心理健康课程已成为大学生心理健康教育的一项有力举措。尝试把体验式教学法运用到大学生心理健康教育课上,是鼓励学生在特定的情境中学会自我反思、自我辩论、自我体验及自我成长。探讨体验式教学法的理论依据及模式构建,从教学内容、课堂教学组织与教学效果评价三个方面论述大学生心理教育课程的教学模式。 相似文献
944.
Educational Psychology Review - The purpose of this systematic review is to describe the state of the art of sequential multiple-assignment randomized trials in education research. An iterative,... 相似文献
945.
Mazon Cécile Etchegoyhen Kattalin Saint-Supery Isabeau Amestoy Anouck Bouvard Manuel Consel Charles Sauzéon Hélène 《Educational technology research and development : ETR & D》2022,70(1):231-262
Educational technology research and development - In recent years, many psycho-educational technologies were studied to address the school-related difficulties encountered by students with autism... 相似文献
946.
Cheng Miaoting Chen Lu Yuen Allan H. K. 《Educational technology research and development : ETR & D》2022,70(5):1931-1949
Educational technology research and development - Based on Bourdieu’s cultural capital theory, our study examined the engagement of newly arrived children (NAC) with ICT and e-sports both at... 相似文献
947.
Alghamdi Amani Khalaf H. Al Ghamdi Kholoud S. Kim Sun Young 《Journal of Science Education and Technology》2022,31(5):583-593
Journal of Science Education and Technology - It is of great importance that science educators teach COVID-19 and related pandemics to boost students’ scientific literacy. A mixed methods... 相似文献
948.
Education and Information Technologies - Using mobile applications in science education has proven to be effective as it adds multiple benefits including learning gains, motivation to learn, and... 相似文献
949.
Nguyen Giang N. H. Bower Matt Stevenson Michael 《Education and Information Technologies》2022,27(6):8235-8264
Education and Information Technologies - Analysing pre-service teachers’ learning design conversations in relation to Technological Pedagogical and Content Knowledge (TPACK) framework to... 相似文献
950.
Sarı Uğur Pektaş Hüseyin Miraç Şen Ömer Faruk Çelik Harun 《Education and Information Technologies》2022,27(5):6669-6689
Education and Information Technologies - The need to benefit from information technologies in the twenty-first century digital age is increasing in all economies to overcome problems and... 相似文献