首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   18096篇
  免费   253篇
  国内免费   55篇
教育   13334篇
科学研究   1195篇
各国文化   279篇
体育   1277篇
综合类   44篇
文化理论   89篇
信息传播   2186篇
  2022年   109篇
  2021年   192篇
  2020年   256篇
  2019年   381篇
  2018年   548篇
  2017年   583篇
  2016年   540篇
  2015年   353篇
  2014年   493篇
  2013年   3694篇
  2012年   481篇
  2011年   500篇
  2010年   443篇
  2009年   419篇
  2008年   458篇
  2007年   429篇
  2006年   444篇
  2005年   387篇
  2004年   277篇
  2003年   272篇
  2002年   249篇
  2001年   381篇
  2000年   299篇
  1999年   263篇
  1998年   173篇
  1997年   172篇
  1996年   201篇
  1995年   157篇
  1994年   174篇
  1993年   161篇
  1992年   226篇
  1991年   226篇
  1990年   254篇
  1989年   227篇
  1988年   184篇
  1987年   190篇
  1986年   200篇
  1985年   186篇
  1984年   190篇
  1983年   183篇
  1982年   150篇
  1981年   145篇
  1980年   151篇
  1979年   206篇
  1978年   166篇
  1977年   124篇
  1976年   120篇
  1975年   115篇
  1973年   106篇
  1971年   118篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
The present article is based on Zoltán Bay's Old Education, New Teaching — an unpublished paper written for the XXVIIth National Meeting of Secondary School Physics Teachers (5–7th April, 1984 Veszprém, Hungary).  相似文献   
992.
This study investigated the effect of Pen-Point and Powerbook computers on solving a multiple step chemistry (molaritý) problem among White, Afro-American and Hispanic students (N=60) at the high school level. The screens on both computers were partitioned into a work field and a reasoning field. Both computers were programmed to record the time spent in each field, the number of entries made, and a copy of the entries made. Statistical analysis of data showed that more of the White and Afro-American Pen-Point computer users solved the problem correctly than did students using the Powerbook computer. All three ethnic groups made fewer entries, and took less time using the Pen-Point computer than the Powerbook. Attitude survey results of all ethnic groups showed that more Pen-Point computer users felt comfortable working with computers. Over all, the results suggest that the Pen-Point computer has a more positive effect on the problem solving performance and attitude of students towards computers than the Powerbook computer.  相似文献   
993.
The transfer rate from community college to four-year institutions has been dropping for the past 70 years. In the most recent statistics, the national rate of transfer is 23% (Cohen & Brawer, 2008). In the state of Alabama the transfer rate is approximately 4%, and in the rural counties of Alabama the transfer rate hovers around 1%. Many studies have been conducted on the transfer process, but none have focused on the transfer process from a theoretical perspective. Most studies focus attention on disparate pieces of the transfer puzzle. To date, there is no overarching theory of the transfer process that will bring coherence to this field of study. This study views the transfer process through the experience of nine transfer advisors who serve students in 11 community colleges located in rural counties in the state of Alabama. The findings establish a substantive theory that will provide a contextual framework for researchers who wish to study specific features of the transfer process. The Influence Theory establishes five factors that play a prominent role in the transfer advising process: institutional, cultural, contextual, advisor, and student. This article concludes with implications for practice and future research.  相似文献   
994.
995.
Rapid advances in technology have provided the potential to connect citizens to their surroundings in unprecedented ways. While many scholars examine different types of efficacy as a predictor of behavior (e.g., internal, external, and political), it is essential to examine how confident citizens feel in their ability to use the technology before understanding how they will use it politically. Research shows that perceived competence increases motivation, which is correlated with behavior. This study examined how traditional measures of efficacy and a new measure affect online political behaviors, concluding that technological efficacy is a reliable construct predicting online news use and expression.  相似文献   
996.
1 基本情况 第二届"中法面向21世纪先进材料研讨会"于1999年9月6-9日在法国特鲁瓦市成功举行,这是继1998年元月第一届会议(西安)后两国科技工作者的又一次聚会.会议由中国国家自然科学基金委员会和法国外交部、香槟地区政府和法砝通核技术研究中心联合资助.  相似文献   
997.
998.
Using data from a sample of 10 colleges at which most students had taken both SAT I: Reasoning tests and SAT II: Subject tests, we simulated the effects of making selection decisions using SAT II scores in place of SAT I scores. Specifically, we treated the students in each college as forming the applicant pool for a more select college, and then selected the top two thirds (and top one third) of the students using high school grade point average combined with either SAT I scores or the average of SAT II scores. Success rates, in terms of first-year grade point averages, were virtually identical for students selected by the different models. The percentage of African American, Asian American, and White students selected varied only slightly across models. Appreciably more Mexican American and Other Latino students were selected with the model that used SAT II scores in place of SAT I scores because these students submitted subject test scores for the Spanish test on which they had high scores.  相似文献   
999.
1000.
The nature of knowledge in vocational education is often described in dichotomies such as theory versus practice or general versus specific. Although different scholars now acknowledge that vocational knowledge is more than putting bits of theoretical and practical knowledge together, it is still unclear how vocational knowledge should be theorised instead. In this article we theorise the idea of contextualising vocational knowledge to understand the nature of vocational knowledge and illustrate this process of contextualising with empirical examples from culinary education. We adopt an activity-theoretical focus on contextualising that involves both particularising and providing coherence. We posit a cognitive process of meaning making where meaning derives from seeing the relationships of parts to the whole. The aspects of the nature of coherence and the relation between concepts and actions seem rather underdeveloped in vocational education theory. To characterise this process at a micro-level, we enhance the activity-theory approach with an inferentialist one. Inferentialism offers a way to focus on reasons and inferential relations between concepts and actions that provides coherence in vocational knowledge. To characterise the broad spectrum of processes relevant for vocational knowledge, we propose the terms “conceptualising” and “concretising”. Conceptualising involves inferring what follows from understanding a concept in a particular situation in relation to the meaning of other concepts. Concretising involves inferring what follows from understanding an aspect of the occupational practice in which students are participating. We argue that this way of framing vocational knowledge helps to better understand its nature and development.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号