全文获取类型
收费全文 | 985篇 |
免费 | 14篇 |
专业分类
教育 | 788篇 |
科学研究 | 34篇 |
各国文化 | 35篇 |
体育 | 63篇 |
综合类 | 1篇 |
文化理论 | 6篇 |
信息传播 | 72篇 |
出版年
2021年 | 4篇 |
2020年 | 17篇 |
2019年 | 30篇 |
2018年 | 53篇 |
2017年 | 44篇 |
2016年 | 28篇 |
2015年 | 21篇 |
2014年 | 25篇 |
2013年 | 245篇 |
2012年 | 25篇 |
2011年 | 26篇 |
2010年 | 26篇 |
2009年 | 42篇 |
2008年 | 30篇 |
2007年 | 26篇 |
2006年 | 25篇 |
2005年 | 20篇 |
2004年 | 23篇 |
2003年 | 26篇 |
2002年 | 9篇 |
2001年 | 14篇 |
2000年 | 18篇 |
1999年 | 13篇 |
1998年 | 18篇 |
1997年 | 9篇 |
1996年 | 10篇 |
1995年 | 12篇 |
1994年 | 16篇 |
1993年 | 3篇 |
1992年 | 13篇 |
1991年 | 13篇 |
1990年 | 12篇 |
1989年 | 14篇 |
1988年 | 12篇 |
1987年 | 9篇 |
1986年 | 8篇 |
1985年 | 8篇 |
1984年 | 7篇 |
1983年 | 7篇 |
1982年 | 5篇 |
1981年 | 2篇 |
1980年 | 3篇 |
1979年 | 3篇 |
1978年 | 2篇 |
1977年 | 4篇 |
1976年 | 3篇 |
1973年 | 3篇 |
1939年 | 1篇 |
1929年 | 1篇 |
1868年 | 1篇 |
排序方式: 共有999条查询结果,搜索用时 15 毫秒
21.
Putten Jim Vander McLendon Michael K. Peterson Marvin W. 《Research in higher education》1997,38(1):131-149
Evidence of substantial growth in unionization among university noninstructional staff over the past 20 years (Hurd and Woodhead, 1987) and the emergence of a quality movement in higher education linking employee attitudes toward the work environment with increased productivity point to the need for additional research into union and nonunion staff perceptions of the work environment. This paper describes a conceptually oriented, exploratory study of the university work environment as perceived and defined by union and nonunion noninstructional staff. 相似文献
22.
23.
Antonio Gómez Skarmeta Pedro García López Jesús Egea Payá José Meseguer Navarro Tomás Jiménez García 《Academic Questions》1994,8(1):91-92
Books and articles of academic interest 相似文献
24.
The definition of what it means to take a test online continues to evolve with the inclusion of a broader range of item types and a wide array of devices used by students to access test content. To assure the validity and reliability of test scores for all students, device comparability research should be conducted to evaluate the impact of testing device on student test performance. The current study looked at the comparability of test scores across tablets and computers for high school students in three commonly assessed content areas and for a variety of different item types. Results indicate no statistically significant differences across device type for any content area or item type. Student survey results suggest that students may have a preference for taking tests on devices with which they have more experience, but that even limited exposure to tablets in this study increased positive responses for testing on tablets. 相似文献
25.
Ortiz R Jiménez JE García Miranda E Guzmán Rosquete R Hernández-Valle I Rodrigo M Estévez A Díaz A Hernández Expósito S 《Journal of learning disabilities》2007,40(1):80-92
The aims of this study were (a) to determine whether Spanish children with reading disabilities (RD) show a speech perception deficit and (b) to explore the locus and nature of this perceptive deficit. A group of 29 children with RD, 41 chronological age-matched controls, and 27 reading ability-matched younger controls were tested on tasks of speech perception. The effect of linguistic unit (word vs. syllable) and type of phonetic contrast (voicing, place and manner of articulation) were analyzed in terms of the number of errors and the response time. The results revealed a speech perception deficit in Spanish children with RD that was independent of the type of phonetic contrast and of linguistic unit. 相似文献
26.
This study examined whether high- and low-IQ poor readers differed in patterns of reading performance. Ten-year-old poor readers with IQ scores of 110 and higher showed difficulty in taking a phonological approach to reading, failing to show an advantage in reading high-frequency regular versus irregular words and showing impaired nonword reading accuracy for their reading age. However, poor readers with IQ scores of 90 and below showed a more phonological approach to reading, with better reading of regular than irregular words of both high and low frequency, and with nonword reading skills slower than, but as accurate as, those of reading-age controls. We concluded that the high-IQ poor readers experienced difficulty in taking a phonological approach to reading, whereas the low-IQ poor readers had much less marked phonological problems, supporting Stanovich's phonological-core variable-difference model. 相似文献
27.
Cultural Studies of Science Education - In this paper, we provide a conceptual critique of the various constructs often used to justify policies and/or research to promote equity, diversity and... 相似文献
28.
Following preliminary indications that in some individuals arm exercise enhanced rather than reduced simultaneous leg endurance, ten young men and women performed three forms of intermittent work to volitional exhaustion, under duty cycles of 45 s work, 15 s rest. The protocols were as follows: (A) knee extensions at 30% maximum voluntary contraction (MVC); (B) 30% MVC knee extensions combined with arm cranking at 130% of their own lactate threshold; (C) combined 30% MVC knee extensions and arm cranking at 20% of their own lactate threshold. Heart rate, oxygen uptake (VO(2)), and blood lactate concentration were among the variables recorded throughout. All physiological indicators of demand were substantially higher in protocol B than in protocols A or C [heart rate: (A) 154 beats . min(-1), (B) 171 beats . min(-1), (C) 150 beats . min(-1); VO(2): (A) 11.9 ml . kg(-1) . min(-1), (B) 21.7 ml . kg(-1) . min(-1), (C) 14.2 ml . kg(-1) . min(-1); blood lactate concentration: (A) 3.3 mmol . l(-1), (B) 5.1 mmol . l(-1), (C) 2.8 mmol . l(-1)], yet there were no significant differences (P > 0.05) in the endurance times between the three conditions [(A) 11.43 min, (B) 11.1 min, (C) 10.57 min] and seven participants endured longest in protocol B. Results from protocol (C) cast doubt on explanations in terms of psychological distraction. We suggest that lactic acid produced by the arms is shuttled to the legs and acts there either as a supplementary fuel source or as an antagonist to the depressing effects of increased potassium concentration. 相似文献
29.
Twenty-nine children with a diagnosis of Attention Deficit Hyperactive Disorder (ADHD) were compared to a group of 21 emotionally disturbed (ED) children and a control group (CO) of 20 nonproblem children. The meaures used in the comparison were the 12 subtests of the Wechsler Intelligence Scale for Children-Revised (WISC-R) and the Stroop Color and Word Test (SCWT). The results showed that the CO group was superior to the ADHD and ED groups and that the ED group performed better than the ADHD group on most of the variables. A stepwise discriminant function analysis showed that similar WISC-R subtests differentiated between the ADHD group and the ED and CO groups. Two measures of the SCWT helped in discriminating between the ADHD and ED groups, but not between the ADHD and CO groups. The authors discuss the meaning of these findings and their contribution to better understanding of the ADHD group, its specific cognitive processing, and its problems. 相似文献
30.