全文获取类型
收费全文 | 663篇 |
免费 | 10篇 |
专业分类
教育 | 501篇 |
科学研究 | 21篇 |
各国文化 | 2篇 |
体育 | 96篇 |
文化理论 | 7篇 |
信息传播 | 46篇 |
出版年
2021年 | 5篇 |
2020年 | 12篇 |
2019年 | 24篇 |
2018年 | 23篇 |
2017年 | 31篇 |
2016年 | 30篇 |
2015年 | 16篇 |
2014年 | 14篇 |
2013年 | 154篇 |
2012年 | 17篇 |
2011年 | 14篇 |
2010年 | 24篇 |
2009年 | 14篇 |
2008年 | 14篇 |
2007年 | 15篇 |
2006年 | 21篇 |
2005年 | 12篇 |
2004年 | 12篇 |
2003年 | 15篇 |
2002年 | 17篇 |
2001年 | 5篇 |
2000年 | 11篇 |
1999年 | 9篇 |
1998年 | 6篇 |
1997年 | 10篇 |
1996年 | 13篇 |
1995年 | 10篇 |
1994年 | 5篇 |
1992年 | 3篇 |
1991年 | 8篇 |
1990年 | 5篇 |
1989年 | 8篇 |
1988年 | 3篇 |
1987年 | 3篇 |
1986年 | 3篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1983年 | 7篇 |
1982年 | 5篇 |
1981年 | 4篇 |
1980年 | 8篇 |
1979年 | 9篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1973年 | 3篇 |
1971年 | 8篇 |
1970年 | 2篇 |
1968年 | 3篇 |
1967年 | 3篇 |
排序方式: 共有673条查询结果,搜索用时 31 毫秒
1.
2.
Indexing consistency in MEDLINE 总被引:3,自引:0,他引:3
The quality of indexing of periodicals in a bibliographic data base cannot be measured directly, as there is no one "correct" way to index an item. However, consistency can be used to measure the reliability of indexing. To measure consistency in MEDLINE, 760 twice-indexed articles from 42 periodical issues were identified in the data base, and their indexing compared. Consistency, expressed as a percentage, was measured using Hooper's equation. Overall, checktags had the highest consistency. Medical Subject Headings (MeSH) and subheadings were applied more consistently to central concepts than to peripheral points. When subheadings were added to a main heading, consistency was lowered. "Floating" subheadings were more consistent than were attached subheadings. Indexing consistency was not affected by journal indexing priority, language, or length of the article. Terms from MeSH Tree Structure categories A, B, and D appeared more often than expected in the high-consistency articles; whereas terms from categories E, F, H, and N appeared more often than expected in the low-consistency articles. MEDLINE, with its excellent controlled vocabulary, exemplary quality control, and highly trained indexers, probably represents the state of the art in manually indexed data bases. 相似文献
3.
Steve Graham Evan J. Fishman Robert Reid Michael Hebert 《Learning disabilities research & practice》2016,31(2):75-89
Students with Attention Deficit Hyperactivity Disorders (ADHD) frequently experience significant difficulty mastering basic academic skills. This meta‐analysis focuses on one specific potential area of learning difficulties for these students: namely, writing. To identify the extent and depth of the potential writing challenges faced by students with ADHD, we conducted a meta‐analysis comparing the writing performance of grade 1 to 12 students with ADHD to their normally achieving peers. We located 44 papers, yielding 45 studies with 87 effect sizes. The average weighted effect sizes showed that students with ADHD obtained lower scores than their normally achieving peers for writing quality (–0.78), output (–0.64), number of genre elements (–0.69), vocabulary (–0.76), spelling (–0.80), and handwriting (–0.62). Contrary to expectations, moderator analyses found that neither study quality nor the source from which ADHD students were drawn (i.e., school/community vs. clinic/hospital) accounted for variability above sampling error alone. 相似文献
4.
Diane Duncan 《Education 3-13》2013,41(3):48-54
This article is an analysis of data drawn from semi-structured, taperecorded interviews with five female primary school headteachers. The research focused on their perceptions of their management role. One significant and unexpected finding was that these women not only denied feeling stressed but were deriving immense satisfaction from their work. It is suggested that much of their enjoyment comes from the high degree of emotional intelligence they display in managing people, time and resources and which also partly accounts for their success and managerial confidence. The degree of power, control and choice which these women exercise in their work lends support to the claim that there is an emerging group of managers in primary education who may represent the ‘new women of power’. 相似文献
5.
6.
Research in Science Education - This study explores the role of domain-specific knowledge in students’ modeling practice and how this knowledge interacts with two domain-general modeling... 相似文献
7.
Rats are typically less accurate in their arm selections in the radial maze over successive trials in a session (Roberts & Dale, 1981). In the present study, rats’ choice accuracy declined when such trials were separated by 2-min (massed) but not by 2-h (spaced) intertriai intervals. Changing intramaze visual/tactile arm stimuli (Experiments 1 and 3) or extramaze landmark stimuli (Experiment 4) between trials weakened the massed-trials effect, but changing the number of food pellets per arm, either alone or in conjunction with changes in intramaze cues (Experiments 2 and 3), did not. The rats also tended to avoid the spatial locations of their last four choices on a previous trial during their first four choices on a current trial, and more so with massed than with spaced trials. These findings indicate that intertriai proactive interference (PI) occurred only with massed trials and was weakened by changing intra- and extramaze cues between such trials. 相似文献
8.
This article summarises the views of 222 grant‐maintained (GM) school's head teachers’ experience of, and reasons for, their schools opting out of local authority control. The survey was conducted on the first 499 secondary schools to go GM. The article investigates issues such as admissions, finances and also the effects of GM status (GMS) on the relationships with, and roles of, local education authorities, the Department for Education, parents and governors. The article provides an overview of moves to GMS and highlights prior aims and reflections. 相似文献
9.
Charles Duncan 《British journal of educational technology : journal of the Council for Educational Technology》1990,21(1):31-40
Courseware development often involves a great deal of effort. One approach to minimising effort while maintaining flexibility is illustrated, using a tutoring system as an example. The system comprises two parts: a 'shell' which contains facilities useful for many different subjects, and an interpreter which generates questions which are subject specific. 相似文献
10.
William J. Meyer Patrick Morrison Anayansi Lombardero Kelsey Swingle Duncan G. Campbell 《Journal of College Student Psychotherapy》2016,30(3):197-205
Unwillingness to share depression experiences with primary care physicians contributes to the undertreatment of depression. This project examined college students’ reasons for depression nondisclosure to primary care providers (PCPs). Undergraduate participants read a vignette describing someone with depression and completed measures of disclosure barriers. Analyses indicated 26% of respondents would NOT disclose depression symptoms to PCPs. Reasons for nondisclosure included difficulty initiating the depression conversation, medication aversion, and fear of referral to a psychologist. Also, anger toward the vignette character varied with disclosure willingness, suggesting that nondisclosers feel more stigma than disclosers and are less likely to engage in psychotherapy. Because engagement in pharmacological and/or psychotherapeutic treatment requires identification of depression in healthcare settings, increased understanding of disclosure barriers could increase students’ access to depression treatment. 相似文献