全文获取类型
收费全文 | 7114篇 |
免费 | 77篇 |
国内免费 | 6篇 |
专业分类
教育 | 5172篇 |
科学研究 | 423篇 |
各国文化 | 123篇 |
体育 | 592篇 |
综合类 | 5篇 |
文化理论 | 73篇 |
信息传播 | 809篇 |
出版年
2021年 | 47篇 |
2020年 | 82篇 |
2019年 | 151篇 |
2018年 | 147篇 |
2017年 | 202篇 |
2016年 | 185篇 |
2015年 | 137篇 |
2014年 | 143篇 |
2013年 | 1777篇 |
2012年 | 149篇 |
2011年 | 149篇 |
2010年 | 136篇 |
2009年 | 141篇 |
2008年 | 174篇 |
2007年 | 173篇 |
2006年 | 140篇 |
2005年 | 128篇 |
2004年 | 129篇 |
2003年 | 125篇 |
2002年 | 118篇 |
2001年 | 79篇 |
2000年 | 101篇 |
1999年 | 79篇 |
1998年 | 75篇 |
1997年 | 77篇 |
1996年 | 82篇 |
1995年 | 75篇 |
1994年 | 88篇 |
1993年 | 84篇 |
1992年 | 82篇 |
1991年 | 87篇 |
1990年 | 86篇 |
1989年 | 86篇 |
1988年 | 76篇 |
1987年 | 67篇 |
1986年 | 83篇 |
1985年 | 67篇 |
1984年 | 71篇 |
1983年 | 100篇 |
1982年 | 76篇 |
1981年 | 75篇 |
1980年 | 71篇 |
1979年 | 66篇 |
1978年 | 87篇 |
1977年 | 71篇 |
1976年 | 52篇 |
1975年 | 61篇 |
1973年 | 50篇 |
1972年 | 42篇 |
1970年 | 48篇 |
排序方式: 共有7197条查询结果,搜索用时 31 毫秒
951.
Robert Wells John McCann Joyce Adams Joan Voris Barbara Dahl 《Child abuse & neglect》1997,21(12):1159-1167
Objective: With the rapid rise of sexual abuse allegations, there is a growing need to develop instruments to help clinicians determine the likelihood that sexual abuse has occurred.Method: This study evaluated the discriminant validity of a structured parent interview regarding emotional, behavioral, and physical symptoms by comparing results among three subsamples of age matched boys: 22 sexually abused boys whose perpetrator confessed, 47 boys evaluated in a sexual abuse clinic but without a history of perpetrator confession and 52 nonabused boys selected after rigorous screening.Results: In comparison with the nonabused (NA) boys, the sexually abused boys were significantly more likely to demonstrate sudden emotional and behavioral changes, frequent stomachaches, more knowledge about sex and sexual activities than expected for age, unusual agressiveness toward playmate or toy's private parts, crying easily, difficulty getting to sleep, and a change to poor school performance. The internal reliability of the SASA was determined to be .83 and scoring of an abbreviated 12-item scale demonstrated a sensitivity of 90.9% and a specificity of 88.5%.Conclusions: The findings suggest that Structured Interview of Symptoms Associated with Sexual Abuse (SASA) is an effective tool which may help in the comprehensive assessment of boys who may have been sexually abused. 相似文献
952.
953.
W. Ronald Salafia Frederick W. Mis W. Scott Terry Robert S. Bartosiak Anthony P. Daston 《Learning & behavior》1973,1(2):109-115
The study involved three experiments. The first, a parametric investigation of nictitating membrane conditioning with eight constant intertrial intervals (ITIs) between 5 and 120 sec, orthogonal to interstimulus intervals (ISIs) of 250 and 750 msec plus three temporal conditioning control groups, revealed that performance improved rapidly with increasing ITI but stabilized at relatively low ITI values. At 750-msec ISI, a decrement in performance was found at 60-sec ITI. Experiment II, using constant ITIs of 45–75 sec in 5-sec steps, at 750-msec ISI confirmed the trend toward a performance decrement around 60 sec, although the trend was weak and highly variable. Experiment III evaluated the differences in performance between constant and variable ITI, using three ITI values and three conditions of variation at each value. Findings were discussed in terms of differences in conditioning resulting from both length and degree of variation of ITI and some subtle effects which may emerge only when constant ITIs are used. 相似文献
954.
955.
956.
Netcourses—courses delivered primarily over digital networks—promise to provide learners with quality, low-cost learning opportunities anywhere and anytime. While having implications throughout education, adult professionals may be the first to make extensive use of netcourses. By increasing the quality and timeliness of teacher professional development while reducing its costs, netcourses could have a major impact on the quality of teaching. In order to understand the realities of this promise, we have reviewed in detail all netcourses for teachers in mathematics and science. As a result of this analysis, we have developed new designs for the effective use of this medium with mathematics and science teachers. 相似文献
957.
Gareth Williams 《Higher Education》1993,25(3):229-237
Total Quality Management is a concept that has permeated the thinking of many higher education managers very quickly within the past five years. It is a product of the market ideologies of the 1980s and the managerialism which accompanied them. Nevertheless, despite the special features of higher education as a set of activities based on the creation and dissemination of knowledge and understanding, the paper argues, largely by reference to the subsequent articles, that the main themes of TQM, continuous quality improvement, consistency of quality, staff (and student) participation, meeting customer needs, coordination, and management procedures which detect poor quality and stimulate good, all have a significant contribution to make to the development of efficient and effective mass higher education systems and institutions, whether or not they are explicitly market oriented. 相似文献
958.
Patrick J. Harrison Farhad Saba Bonnie J. Seeman Gina Molise Robert Behm Michael D. Williams 《Educational technology research and development : ETR & D》1991,39(4):65-77
The study described in this article takes the view that distance education programs are dynamic systems with multiple constituencies.
Literature on distance education programs as complex systems and on the critical constituency approach to program evaluation
was used to guide the development of a questionnaire designed to assess the components of a distance education program. Instrument
development was conducted in four phases using both quantitative and qualitative methods. The data from this study suggest
that there are four major components of effectiveness in distance education programs: instruction, management, telecommuting,
and support. Within each of these components there are from two to five subcomponents, 14 components in all, which can be
used to assess distance education programs. The assessment scale which was developed measures these four components and their
subcomponents. 相似文献
959.
D L Best J E Williams J M Cloud S W Davis L S Robertson J R Edwards H Giles J Fowles 《Child development》1977,48(4):1375-1384
The Sex Stereotype Measure II (SSM II), a 32-item revision of the Williams, Bennett, and Best Sex Stereotype Measure, was developed to assess children's knowledge of conventional, sex-trait stereotypes defined by American university students. The procedure employed brief stories and human figure silhouettes which were individually administered to 5- and 8-year-old children in the United States, England, and Ireland and group administered to 11-year-olds in the United States. In the United States, knowledge of sex-trait stereotypes was found to develop in a linear fashion between the ages of 5 and 11, with more male traits than female traits being known at each age level. Cross-nationally, there was a high degree of similarity in the nature of the sex stereotypes being learned by the children in the 3 countries, although the rate of learning appeared slower among the Irish children. In all countries there was a clear progression in sex-stereotype learning from age 5 to age 8. English boys had greater knowledge of stereotypes than English girls, but this was not true in Ireland and the United States. Generally, knowledge of male stereotype traits appeared to develop earlier while knowledge of the female traits increased more rapidly between ages 5 and 8. The similarity in sex-stereotype learning in the 3 countries is discussed, and studies in progress in other countries of greater cultural diversity are noted. 相似文献
960.
Aline Robert 《Educational Studies in Mathematics》1995,28(1):73-86
Resume Dans cet article, nous travaillons sur le discours non strictement mathématique qu'un enseignant peut tenir en classe de mathématiques; nous nous sommes restreintes à des élèves de plus de 15 ans, et aux moments d'exposition des connaissances. Nous présentons d'abord trois grandes fonctions que l'enseignant peut donner à ce discours (communication, structuration et étiquetage, réflexion), en illustrant notre propos par des exemples empruntés à un même cours de niveau universitaire. Nous cherchons diverses caractéristiques de ces trois fonctions, en dégageant notamment leur lien avec le déroulement même du cours, leur portée éventuelle pour les étudiants, leur lien avec les contenus exposés... Nous en déduisons des pistes de recherches ultérieures, notamment en ce qui concerne la troisiéme fonction, qui nous semble la plus susceptible d'être l'objet d'un travail spécifique de préparation de l'enseignant.
Analysis of not strictly mathematical discourse in mathematics classes
In this article we examine the discourse which is not strictly mathematical that a teacher might adopt in a mathematics class. We have confined our discussion to students over 15 and to periods of teacher exposition. First we present three major functions of such discourse:communication, structuring and labelling, and reflection. We examine various characteristics of these three functions, primarily to make clear their relevance to the unfolding of the lesson itself, their influence on the students, and their bearing on the material taught, from this we develop lines for future enquiry, notably on the third function, which seems to us to be the most likely focus for specific preparation by the teacher.相似文献