全文获取类型
收费全文 | 1840篇 |
免费 | 38篇 |
专业分类
教育 | 1399篇 |
科学研究 | 83篇 |
各国文化 | 26篇 |
体育 | 227篇 |
文化理论 | 33篇 |
信息传播 | 110篇 |
出版年
2023年 | 23篇 |
2022年 | 34篇 |
2021年 | 49篇 |
2020年 | 86篇 |
2019年 | 136篇 |
2018年 | 161篇 |
2017年 | 165篇 |
2016年 | 137篇 |
2015年 | 97篇 |
2014年 | 102篇 |
2013年 | 411篇 |
2012年 | 64篇 |
2011年 | 53篇 |
2010年 | 34篇 |
2009年 | 31篇 |
2008年 | 25篇 |
2007年 | 25篇 |
2006年 | 28篇 |
2005年 | 16篇 |
2004年 | 23篇 |
2003年 | 22篇 |
2002年 | 11篇 |
2001年 | 15篇 |
2000年 | 16篇 |
1999年 | 10篇 |
1998年 | 6篇 |
1997年 | 7篇 |
1996年 | 9篇 |
1995年 | 12篇 |
1994年 | 11篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1991年 | 3篇 |
1990年 | 5篇 |
1989年 | 7篇 |
1988年 | 2篇 |
1987年 | 3篇 |
1986年 | 2篇 |
1985年 | 5篇 |
1979年 | 2篇 |
1977年 | 3篇 |
1976年 | 5篇 |
1974年 | 2篇 |
1972年 | 1篇 |
1970年 | 2篇 |
1967年 | 1篇 |
1960年 | 1篇 |
1959年 | 2篇 |
1956年 | 1篇 |
1948年 | 1篇 |
排序方式: 共有1878条查询结果,搜索用时 15 毫秒
31.
Katharine H. Zeiders Sara D. Bayless Chelsea L. Derlan Adriana J. Umaña-Taylor Kimberly A. Updegraff Laudan B. Jahromi 《Child development》2019,90(3):e373-e385
Ethnic–racial identity (ERI) development and ethnic–racial discrimination are two salient experiences among adolescents in the United States. Despite growing awareness of the costs and benefits of these experiences individually, we know little about how they may influence one another. The current study examined competing hypotheses relating discrimination and components of ERI (i.e., exploration, resolution, affirmation) among a sample of Mexican-origin adolescent mothers (N = 181; Mage at Wave 1 = 16.83, SD = 1.01) across six waves of data. Findings revealed that within-person changes in discrimination predicted subsequent ERI resolution and affirmation; however, ERI did not predict subsequent discrimination. Between-person effects of discrimination on affirmation were significant. Our findings underscore the importance of discrimination experiences in shaping Mexican-origin adolescent mothers’ normative developmental competencies. 相似文献
32.
Ortega-Tudela Juana M. Lechuga M. Teresa Gómez-Ariza Carlos J. 《Instructional Science》2019,47(2):239-255
Instructional Science - Research has shown that retrieval activities, that is, actively recalling previously studied information, may substantially contribute to learning from complex educational... 相似文献
33.
Cultural Studies of Science Education - Alexis Patterson’s paper researches equity in groupwork in the science classroom by looking at micro-interactions. She points to the key features of... 相似文献
34.
Cofré Hernán Núñez Paola Santibáñez David Pavez José M. Valencia Martina Vergara Claudia 《Science & Education》2019,28(3-5):205-248
Science & Education - There is widespread agreement that an adequate understanding of the nature of science (NOS) is a critical component of scientific literacy and a major goal in science... 相似文献
35.
36.
Dual-language programs are becoming increasingly popular among educators and the public in general. In these programs, students aim at attaining full proficiency in English and another language while reaching an academic achievement at or above grade level. This article describes a series of pedagogical practices in the context of dual-language classrooms. We set the discussion across three defining characteristics of our constructivist perspective: learning as collaboration, teachers as facilitators, and language and culture as intertwined elements in schools. In sum, we postulate that dual-language programs bring equity to schools. 相似文献
37.
Fernandez Frank Baker David P. Fu Yuan-Chih Muñoz Ismael G. Ford Karly Sarita 《Minerva》2021,59(1):79-98
Minerva - Over the course of the 20th century, unprecedented growth in scientific discovery was fueled by broad growth in the number of university-based scientists. During this period the American... 相似文献
38.
Measurement and analysis of soil nitrogen and organic matter content using near-infrared spectroscopy techniques 总被引:2,自引:0,他引:2
Near infrared reflectance (N1R) spectroscopy is as a rapid, convenient and simple nondestructive technique useful for quantifying several soil properties. This method was used to estimate nitrogen (N) and organic matter (OM) content in a soil of Zhejiang Province, Hangzhou County. A total of 125 soil samples were taken from the field. Ninety-five samples spectra were used during the calibration and cross validation stage. Thirty samples spectra were used to predict N and OM concentration. NIR spectra of these samples were correlated using partial least square regression. The regression coefficients between measured and predicted values of N and OM was 0.92 and 0.93, and SEP (standard error of prediction) were 3.28 and 0.06, respectively, which showed that NIR method had potential to accurately predict these constituents in this soil. The results showed that NIR spectroscopy could be a good tool for precision farming application. 相似文献
39.
40.
Juan Antonio Simón 《Soccer & Society》2019,20(7-8):948-959
ABSTRACTOne of the most memorable moments in the World Cups history is Marco Tardelli’s second goal in Italy’s win over Germany in the 1982 World Cup finals. Better known as Tardelli’s scream, it is thus a perfect object to analyse in order to understand football’s deeper social meanings and its political and cultural undertones, in this case both for the World Cup champions, Italy, and for the host country, Spain. In the Spanish case, organizing the World Cup was a huge political opportunity for the just restored democracy to showcase to the world a modern and pluralistic society leaving behind the authoritarian and outdated dictatorship. As for Italy, their first World Cup winning since World War II was heavily politically used by actors across the political spectrum. Such nationalistic approach constituted a novelty after decades of a low profile national discourse. 相似文献