全文获取类型
收费全文 | 1720篇 |
免费 | 24篇 |
专业分类
教育 | 1292篇 |
科学研究 | 99篇 |
各国文化 | 32篇 |
体育 | 101篇 |
文化理论 | 13篇 |
信息传播 | 207篇 |
出版年
2023年 | 12篇 |
2022年 | 14篇 |
2021年 | 20篇 |
2020年 | 38篇 |
2019年 | 53篇 |
2018年 | 54篇 |
2017年 | 67篇 |
2016年 | 69篇 |
2015年 | 41篇 |
2014年 | 58篇 |
2013年 | 410篇 |
2012年 | 49篇 |
2011年 | 36篇 |
2010年 | 39篇 |
2009年 | 34篇 |
2008年 | 42篇 |
2007年 | 38篇 |
2006年 | 38篇 |
2005年 | 37篇 |
2004年 | 32篇 |
2003年 | 23篇 |
2002年 | 27篇 |
2001年 | 29篇 |
2000年 | 31篇 |
1999年 | 17篇 |
1998年 | 17篇 |
1997年 | 16篇 |
1996年 | 24篇 |
1995年 | 15篇 |
1994年 | 19篇 |
1993年 | 12篇 |
1992年 | 22篇 |
1991年 | 14篇 |
1990年 | 19篇 |
1989年 | 15篇 |
1988年 | 13篇 |
1987年 | 8篇 |
1986年 | 18篇 |
1985年 | 27篇 |
1984年 | 16篇 |
1983年 | 11篇 |
1982年 | 19篇 |
1979年 | 15篇 |
1978年 | 16篇 |
1977年 | 8篇 |
1976年 | 9篇 |
1975年 | 11篇 |
1974年 | 9篇 |
1973年 | 10篇 |
1972年 | 8篇 |
排序方式: 共有1744条查询结果,搜索用时 15 毫秒
41.
A large urban school district contracted with a private nonprofit educational foundation to train 126 special education resource
teachers in the last three years in an Orton-Gillingham-based program. These teachers are currently teaching learning-disabled
students in groups of 8–10 at the elementary level and 10–13 students at the secondary level. Learning-disabled students who
qualify for Special Education, either in reading or spelling, or both, are receiving the instruction.
The teachers took a Basic Introductory Class (90 hours of Advanced Academic Credit offered by the Texas Education Agency,
or six hours of graduate credit at a local university) in order to teach the program in the resource setting. A two year Advanced
Training included annual on-site observations, two half-day workshops each fall and spring, and a two-day advanced workshop
in the second summer.
First grade teachers, one selected from each of the 164 campuses, supervisors, and principals attended a 25-hour course on
“Recognizing Dyslexia: Using Multisensory Teaching and Discovery Techniques.” The first grade teachers and special education
resource teachers collaborated to provide inservice training for their colleagues.
Research, conducted by the district’s Research Department, reveals statistically significant gains in reading and spelling
ability for the learning-disabled resource students as measured by the Woodcock Reading Mastery Test-Revised, and the Test
of Written Spelling. 相似文献
42.
43.
This paper examines the factors affecting the performance of global query expansion based on term co-occurrence data and suggests a way to maximize the retrieval effectiveness. Major parameters to be optimized through experiments are term similarity measure and the weighting scheme of additional terms. The evaluation of four similarity measures tested in query expansion reveal that mutual information and Yule's Y, which emphasize low frequency terms, achieve better performance than cosine and Jaccard coefficients that have the reverse tendency. In the evaluation of three weighting schemes, similarity weight performs well only with short queries, whereas fixed weights of approximately 0.5 and similarity rank weights were effective with queries of any length. Furthermore, the optimal similarity rank weight achieving the best overall performance seems to be the least affected by test collections and the number of additional terms. For the efficiency of retrieval, the number of additional terms needs not exceed 70 in our test collections, but the optimal number may vary according to the characteristics of the similarity measure employed. 相似文献
44.
Janice Taylor GordonAuthor Vitae 《Journal of The Franklin Institute》2002,339(3):321-333
The Franklin Institute, Philadelphia, Pennsylvania awarded the 2001 Benjamin Franklin Medal in Life Science to Judah Folkman for his founding of the field of angiogenesis research and demonstration that angiogenesis is a necessary factor in the conversion of abnormal cells to malignant tumors. 相似文献
45.
Three aspects of the most important problem questionused in agenda-setting research to measure issue salience amongthe public were examined. A split-ballot design in a state-widesurvey compared versions of the public agenda with a socialframe of reference versus a personal frame of reference, versionsusing the traditional term problem versus issue,and the effects of question order. High correlations betweenthe different versions were found in all three sets of comparisons. 相似文献
46.
Analytic Frameworks for Assessing Dialogic Argumentation in Online Learning Environments 总被引:3,自引:2,他引:1
Douglas B. Clark Victor Sampson Armin Weinberger Gijsbert Erkens 《Educational Psychology Review》2007,19(3):343-374
Over the last decade, researchers have developed sophisticated online learning environments to support students engaging in
dialogic argumentation. This review examines five categories of analytic frameworks for measuring participant interactions
within these environments focusing on (1) formal argumentation structure, (2) conceptual quality, (3) nature and function
of contributions within the dialogue, (4) epistemic nature of reasoning, and (5) argumentation sequences and interaction patterns.
Ultimately, the review underscores the diversity of theoretical perspectives represented within this research, the nature
of dialogic interaction within these environments, the importance of clearly specifying theoretical and environmental commitments
throughout the process of developing or adopting an analytic framework, and the role of analytic frameworks in the future
development of online learning environments for argumentation.
相似文献
Douglas B. ClarkEmail: |
47.
Practitioners are frequently faced with the need to evaluate the intellectual skills of individuals with very high levels of functioning. Due to the statistical rarity of these persons, few tests have sufficient range of scores for a detailed analysis of intraindividual differences in performance. This paper describes a method using age equivalents and standard scores to recreate the full range of variability in the scores of high-functioning individuals. The method allows for a more complete interpretation of performance that can lead to better educational and therapeutic programming. 相似文献
48.
49.
50.