全文获取类型
收费全文 | 127040篇 |
免费 | 1936篇 |
国内免费 | 245篇 |
专业分类
教育 | 87469篇 |
科学研究 | 13806篇 |
各国文化 | 2008篇 |
体育 | 10406篇 |
综合类 | 196篇 |
文化理论 | 1110篇 |
信息传播 | 14226篇 |
出版年
2021年 | 998篇 |
2020年 | 1702篇 |
2019年 | 2638篇 |
2018年 | 3352篇 |
2017年 | 3595篇 |
2016年 | 3598篇 |
2015年 | 2361篇 |
2014年 | 3209篇 |
2013年 | 27465篇 |
2012年 | 2640篇 |
2011年 | 3174篇 |
2010年 | 2520篇 |
2009年 | 2692篇 |
2008年 | 2650篇 |
2007年 | 2423篇 |
2006年 | 2564篇 |
2005年 | 2575篇 |
2004年 | 3230篇 |
2003年 | 2504篇 |
2002年 | 2348篇 |
2001年 | 2339篇 |
2000年 | 2001篇 |
1999年 | 1840篇 |
1998年 | 1501篇 |
1997年 | 1555篇 |
1996年 | 1711篇 |
1995年 | 1483篇 |
1994年 | 1481篇 |
1993年 | 1481篇 |
1992年 | 1669篇 |
1991年 | 1567篇 |
1990年 | 1537篇 |
1989年 | 1400篇 |
1988年 | 1230篇 |
1987年 | 1168篇 |
1986年 | 1172篇 |
1985年 | 1415篇 |
1984年 | 1269篇 |
1983年 | 1190篇 |
1982年 | 1125篇 |
1981年 | 1041篇 |
1980年 | 1001篇 |
1979年 | 1224篇 |
1978年 | 1112篇 |
1977年 | 997篇 |
1976年 | 928篇 |
1975年 | 764篇 |
1974年 | 771篇 |
1973年 | 742篇 |
1972年 | 581篇 |
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
951.
Jozo Grgic Bruno Lazinica Pavle Mikulic James W. Krieger Brad Jon Schoenfeld 《European Journal of Sport Science》2017,17(8):983-993
Although the effects of short versus long inter-set rest intervals in resistance training on measures of muscle hypertrophy have been investigated in several studies, the findings are equivocal and the practical implications remain unclear. In an attempt to provide clarity on the topic, we performed a systematic literature search of PubMed/MEDLINE, Scopus, Web of Science, Cochrane Library, and Physiotherapy Evidence Database (PEDro) electronic databases. Six studies were found to have met the inclusion criteria: (a) an experimental trial published in an English-language peer-reviewed journal; (b) the study compared the use of short (≤60?s) to long (>60?s) inter-set rest intervals in a traditional dynamic resistance exercise using both concentric and eccentric muscle actions, with the only difference in resistance training among groups being the inter-set rest interval duration; (c) at least one method of measuring changes in muscle mass was used in the study; (d) the study lasted for a minimum of four weeks, employed a training frequency of ≥2 resistance training days per week, and (e) used human participants without known chronic disease or injury. Current evidence indicates that both short and long inter-set rest intervals may be useful when training for achieving gains in muscle hypertrophy. Novel findings involving trained participants using measures sensitive to detect changes in muscle hypertrophy suggest a possible advantage for the use of long rest intervals to elicit hypertrophic effects. However, due to the paucity of studies with similar designs, further research is needed to provide a clear differentiation between these two approaches. 相似文献
952.
Henry Brown Brian Dawson Martyn J. Binnie Hugh Pinnington Marc Sim Tristan D. Clemons 《European Journal of Sport Science》2017,17(6):741-747
This study compared markers of muscle damage and inflammation elevated by a matched-intensity interval running session on soft sand and grass surfaces. In a counterbalanced, repeated-measures and crossover design, 10 well-trained female athletes completed 2 interval-based running sessions 1 week apart on either a grass or a sand surface. Exercise heart rate (HR) was fixed at 83–88% of HR maximum. Venous blood samples were collected pre-, post- and 24?h post-exercise, and analysed for myoglobin (Mb) and C-reactive protein (CRP). Perceptual ratings of exertion (RPE) and muscle soreness (DOMS) were recorded immediately post- and 24?h post-exercise. A significant time effect showed that Mb increased from pre- to post-exercise on grass (p?=?.008) but not on sand (p?=?.611). Furthermore, there was a greater relative increase in Mb on grass compared with that on sand (p?=?.026). No differences in CRP were reported between surfaces (p?>?.05). The HR, RPE and DOMS scores were not significantly different between conditions (p > .05). These results suggest that in response to a matched-intensity exercise bout, markers of post-exercise muscle damage may be reduced by running on softer ground surfaces. Such training strategy may be used to minimize musculoskeletal strain while still incurring an equivalent cardiovascular training stimulus. 相似文献
953.
Chia S. Her 《Multicultural Perspectives》2014,16(1):35-42
The educational experiences of Southeast Asian Americans, particularly Cambodian Americans, Hmong Americans, Laotian Americans, and Vietnamese Americans, are characterized by numerous challenges, which can be attributed to their migration history, socioeconomic status, and English proficiency. By the end of 11th grade, a high percentage of Southeast Asian American students are not college ready. The educational challenges of Southeast Asian Americans have been overshadowed by the model minority stereotype. Educational policies targeting issues affecting the education of Southeast Asian Americans and teacher preparations that focus on getting Southeast Asian American students to be college ready could help change the educational story of this population. 相似文献
954.
José A. Montelongo Anita C. Hernández Roberta J. Herter 《Multicultural Perspectives》2014,16(3):170-177
English-Spanish cognates are an important subset of words in both the English and Spanish languages. Cognates are words that possess identical or nearly identical spellings and meanings in both languages as a result of being derived from Latin and Greek. Of major importance is the fact that many of the more than 20,000 cognates in English are academic vocabulary words, terms essential for comprehending school texts.?The Pura Belpré Children's Book Award has been given since 1996 to outstanding children's and young adult literature that represents, affirms, and celebrates the Latino cultural experience. The books are judged for their literary and artistic quality.?There are many English-Spanish cognates in each of the Pura Belpré picture books. The purpose of this article is to introduce the Pura Belpré Cognate Database, which lists all of the English-Spanish cognates for each of the children's picture books that have won the award or have been designated as honor books. Ideas for vocabulary, spelling, and morphology lessons or mini-lessons are also presented. 相似文献
955.
The teacher readaloud is an instructional tool established in its ability to foster children's language and literacy development. Increasing cultural and linguistic diversity and changing standards place pressure on teachers to provide literacy and language instruction relevant to children's everyday lives and learning. This article presents a framework for conducting culturally and linguistically relevant readalouds within two essential components, talk and text, in terms of developing cultural competence, maintaining high academic expectations, and fostering a critical stance. Particular attention is given to the interactive nature of these readalouds and how they can be used to promote children's active co-construction of textually-based meaning. 相似文献
956.
957.
A critically transformative education continues to be at the center of Tucson Unified School District's (TUSD) equity and academic excellence mission. Through the use of the Social Transformation paradigm and the lesson learned from the implementation of the Critically Compassionate Intellectualism Model, TUSD once again created a cutting edge transformative, cultural, ethnic, multicultural, equity-based curricula that seeks to stimulate the blossoming intellectual capacities of our students. It presents the opportunity to build foundations and structures of collective and individual agency. Along the lines of agency, it promotes what is called barriorganic intellectualism and the nurturing of gardens of intellectualism (jardines del intelectualismo) that provide opportunities for both the academic and personal transformation of our students. 相似文献
958.
959.
960.