全文获取类型
| 收费全文 | 1198篇 |
| 免费 | 35篇 |
专业分类
| 教育 | 958篇 |
| 科学研究 | 25篇 |
| 各国文化 | 19篇 |
| 体育 | 58篇 |
| 文化理论 | 10篇 |
| 信息传播 | 163篇 |
出版年
| 2023年 | 9篇 |
| 2022年 | 16篇 |
| 2021年 | 19篇 |
| 2020年 | 48篇 |
| 2019年 | 52篇 |
| 2018年 | 83篇 |
| 2017年 | 92篇 |
| 2016年 | 73篇 |
| 2015年 | 45篇 |
| 2014年 | 64篇 |
| 2013年 | 251篇 |
| 2012年 | 34篇 |
| 2011年 | 39篇 |
| 2010年 | 25篇 |
| 2009年 | 30篇 |
| 2008年 | 36篇 |
| 2007年 | 14篇 |
| 2006年 | 21篇 |
| 2005年 | 29篇 |
| 2004年 | 36篇 |
| 2003年 | 24篇 |
| 2002年 | 18篇 |
| 2001年 | 13篇 |
| 2000年 | 13篇 |
| 1999年 | 14篇 |
| 1998年 | 15篇 |
| 1997年 | 11篇 |
| 1996年 | 11篇 |
| 1995年 | 3篇 |
| 1994年 | 9篇 |
| 1993年 | 7篇 |
| 1992年 | 11篇 |
| 1991年 | 5篇 |
| 1990年 | 9篇 |
| 1989年 | 3篇 |
| 1988年 | 2篇 |
| 1987年 | 4篇 |
| 1984年 | 6篇 |
| 1981年 | 2篇 |
| 1980年 | 3篇 |
| 1978年 | 3篇 |
| 1977年 | 3篇 |
| 1976年 | 6篇 |
| 1975年 | 4篇 |
| 1974年 | 6篇 |
| 1973年 | 2篇 |
| 1972年 | 2篇 |
| 1967年 | 2篇 |
| 1924年 | 1篇 |
| 1844年 | 1篇 |
排序方式： 共有1233条查询结果，搜索用时 15 毫秒
51.
The aim of this study was to determine the level of awareness of methodological search filters among health and academic librarians in the UK and Ireland, their use of filters and views on the perceived benefits, limitations and ways to increase usage of search filters. A random proportional sample of health and academic librarians were surveyed by telephone and fax. Overall, 88% (196/224) completed the telephone survey to establish awareness and use of filters. Eighty-four per cent (51/61) completed a fax survey focusing in more depth on usability issues surrounding filters. Results indicate a high level of awareness of methodological filters, but low level of usage. Furthermore, a high level of awareness did not necessarily correlate with a high level of knowledge or understanding. Examination of responses revealed limitations and recommendations beyond those reported in the literature and highlights the relationship between understanding and effective use of filters. Improved dissemination and publication of filters is required to better inform librarians on the concept of filters and how to use them effectively. 相似文献
52.
The purpose of this study was to investigate if children perceived certain sports to be masculine, feminine, or neutral. Students attending a University Laboratory school (grades K-12) were asked to fill out a survey about sports during a class period, Children in grades K-6 were given a sport (such as baseball) and asked if a boy named David would play it, if a girl named Jane would play it, or if both David and Jane would play the sport. Students in grades 7-12 were asked to name their favorite athlete or team and sport and indicate what sports they felt was best for a girl and a boy. Then they were given a list of sports and asked to indicate, using a 5-point Likert-type scale, whether they believed the sport was masculine, neutral, or feminine. Results from loglinear analyses indicated that students sex-typed certain sports, such as aerobics and football. Additionally, although some responses from students in grades 7-12 indicated that individuals should be able to play any sport they wanted, there were many gendered rsponses in terms of what sport(s) girls and boys should participate in. The results are discussed with reference to Metheny's categories of permissible sports for girls and in the framework of the gender typing of sport. 相似文献
53.
The aim of this study was to assess the influence of three imposed crank rates on the attainment of peak oxygen consumption (VO2peak) and other physiological responses during incremental arm crank ergometry. Twenty physically active, although non-specifically trained, males volunteered for the study. They completed an exercise protocol using an electrically braked arm ergometer (Lode Angio, Groningen, Netherlands) at crank rates of 60, 70 and 80 rev x min(-1). The order of tests was randomized and they were separated by at least 2 days. Peak VO2 was significantly higher (P < 0.05) at 70 and 80 rev x min(-1) than at 60 rev x min(-1). Peak ventilation volume increased as a function of crank rate and was higher (P < 0.05) at 80 than at 60 rev x min(-1). Peak heart rate was higher (P < 0.05) at 70 and 80 rev x min(-1) than at 60 rev x min(-1). Furthermore, 70 and 80 rev x min(-1) resulted in an extended test time compared with 60 rev x min(-1). The greater physiological responses observed during the tests at the two faster crank rates might have been the result of a postponement of acute localized neuromuscular fatigue, allowing for more work to be completed. We recommend, therefore, that an imposed crank rate between 70 and 80 rev x min(-1) should be used to elicit VO2peak and other physiological responses in arm crank ergometry. 相似文献
54.
55.
56.
Michelle A. Purdy 《History of education quarterly》2016,56(1):61-89
The school desegregation narrative often references historically white public schools as sites of massive resistance and historically white private schools as segregationist academies. Yet some historically white elite private schools or independent schools, such as The Westminster Schools (plural in name only), established in 1951 in Atlanta, Georgia, chose to desegregate. Such elite institutions, which have served as one catalyst for the creation and maintenance of social and cultural capital, became more accessible after Brown v. Board of Education through a combination of private and public decisions galvanized by larger social, political, and federal forces. Westminster's 1965 decision to consider all applicants regardless of race was emblematic of the pragmatic desegregation politics of Atlanta's city leaders during the civil rights movement and a national independent school agenda focused on recruiting black students. Drawing on institutional, local, regional, and national archival records and publications, this article examines the import of schools like Westminster to civic and business leaders, to the politics of race and desegregation occurring in large cities, and to the range of educational opportunities available in metropolitan areas. This examination yields an analysis of the leadership and politics of a southern historically white elite private school that black students desegregated in 1967. 相似文献
57.
The development of English language learners (ELLs) was explored from kindergarten through eighth grade within a nationally representative sample of first-time kindergartners (N = 19,890). Growth curve analyses indicated that, compared to native English speakers, ELLs were rated by teachers more favorably on approaches to learning, self control, and externalizing behaviors in kindergarten and generally continued to grow in a positive direction on these social/behavioral outcomes at a steeper rate compared to their native English-speaking peers, holding other factors constant. Differences in reading and math achievement between ELLs and native English speakers varied based on the grade at which English proficiency is attained. Specifically, ELLs who were proficient in English by kindergarten entry kept pace with native English speakers in both reading and math initially and over time; ELLs who were proficient by first grade had modest gaps in reading and math achievement compared to native English speakers that closed narrowly or persisted over time; and ELLs who were not proficient by first grade had the largest initial gaps in reading and math achievement compared to native speakers but the gap narrowed over time in reading and grew over time in math. Among those whose home language is not English, acquiring English proficiency by kindergarten entry was associated with better cognitive and behavioral outcomes through eighth grade compared to taking longer to achieve proficiency. Multinomial regression analyses indicated that child, family, and school characteristics predict achieving English proficiency by kindergarten entry compared to achieving proficiency later. Results are discussed in terms of policies and practices that can support ELL children's growth and development. 相似文献
58.
59.
ABSTRACT This article reports the initial findings of a study of the cohort of students who entered Liverpool John Moores University, England, to study women's studies in the autumn of 1994, basing its focus on the survey carried out as soon as the students entered the University and the in-depth interviews carried out later in that semester. The work proceeded within the tradition of grounded theory research and endeavoured to avoid prepared hypotheses in order to allow the themes to emerge from the students' answers. From the initial findings, the very strong emphasis on the salience of the students' choice of women's studies and the experiential importance of identity as a concept was striking. The article debates the theoretical difficulties in the theorising of identity in relation to the empirical, existential project of the students. 相似文献
60.
Yoojin Kwon Michelle Lemieux Jill McTavish Nadine Wathen 《Journal of the Medical Library Association》2015,103(4):184-188