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   4272篇
  免费   47篇
  国内免费   6篇
教育   3314篇
科学研究   218篇
各国文化   82篇
体育   299篇
综合类   1篇
文化理论   61篇
信息传播   350篇
  2021年   24篇
  2020年   49篇
  2019年   80篇
  2018年   95篇
  2017年   122篇
  2016年   93篇
  2015年   83篇
  2014年   94篇
  2013年   1089篇
  2012年   69篇
  2011年   93篇
  2010年   70篇
  2009年   96篇
  2008年   107篇
  2007年   95篇
  2006年   98篇
  2005年   90篇
  2004年   82篇
  2003年   96篇
  2002年   79篇
  2001年   68篇
  2000年   69篇
  1999年   64篇
  1998年   57篇
  1997年   62篇
  1996年   62篇
  1995年   61篇
  1994年   50篇
  1993年   54篇
  1992年   50篇
  1991年   60篇
  1990年   52篇
  1989年   55篇
  1988年   43篇
  1987年   39篇
  1986年   46篇
  1985年   56篇
  1984年   30篇
  1983年   41篇
  1982年   41篇
  1981年   43篇
  1980年   32篇
  1979年   63篇
  1978年   31篇
  1977年   47篇
  1976年   33篇
  1975年   31篇
  1974年   37篇
  1973年   24篇
  1972年   22篇
排序方式: 共有4325条查询结果,搜索用时 15 毫秒
991.
Abstract

Parents and teachers play an important role in stimulating student motivation. The aim of this study was to examine if both parent and teacher enthusiasm could predict intrinsic motivation toward STEM activities, and if motivation would be associated with improved STEM achievement over one year in a one-year prospective examination of 288 Swedish students in their final year of a Science High School program (143 females and 145 males). Surveys of parent and teacher enthusiasm were collected at baseline, and student intrinsic motivation and GPA in STEM were assessed at baseline and at the end of the year. Baseline GPA and intrinsic motivation as well as follow-up intrinsic motivation were significantly associated with later GPA. Finally, intrinsic motivation mediated the relation between teacher and parent enthusiasm and change in GPA. Findings show the importance of parent and teacher enthusiasm for adolescent’s intrinsic motivation and achievement in STEM.  相似文献   
992.
Cells and cell-free solutions of the culture filtrate of the bacterial symbiont, Xenorhabdus nematophila taken from the entomopathogenic nematode Steinernema carpocapsae in aqueous broth suspensions were lethal to larvae of the diamondback moth Plutella xylostella. Their application on leaves of Chinese cabbage indicated that the cells can penetrate into the insects in the absence of the nematode vector. Cell-free solutions containing metabolites were also proved as effective as bacterial cells suspension. The application of aqueous suspensions of cells of X. nematophila or solutions containing its toxic metabolites to the leaves represents a possible new strategy for controlling insect pests on foliage.  相似文献   
993.
This cross‐sectional study explored the influence of student development and year‐in‐program on the improvement of affective/trait‐based empathy and cognitive/skill‐based empathy. Two 2 × 2 analyses of variance between 1st‐ and 2nd‐year counseling students revealed mixed findings on the relationship between cognitive development and empathy levels. Results demonstrated clearly, however, that students' affective and cognitive empathy increased from their 1st to 2nd year in a counseling program.  相似文献   
994.
995.
The aim of this study was to examine whether self-confidence mediated the relationship between competitive anxiety intensity and direction. Elite (n = 102) and nonelite (n = 144) participants completed the self-confidence subscale of the Competitive Trait Anxiety Inventory-2 and the worry and somatic subscales from the Sport Anxiety Scale. Consistent with procedures recommended by Baron and Kenny (1986), linear regression analyses were used. The findings for elite athletes revealed worry intensity to significantly predict self-confidence and worry direction. However, when self-confidence was controlled, worry intensity did not predict worry direction over that which was significantly predicted by self-confidence. Within the analysis for somatic symptoms, only self-confidence was found to predict somatic symptom direction. For the nonelite athletes, worry and somatic symptom intensity predicted both self-confidence and direction, and direction when self-confidence was controlled. The findings for the elite athletes suggest self-confidence mediates the relationship between performers' worry symptoms and subsequent directional interpretations. However, the findings suggest that high levels of self-confidence and low symptom intensity are needed for nonelite athletes to demonstrate a less debilitative interpretation.  相似文献   
996.
Background: Recent research and curriculum reforms have indicated the need for diversifying teaching approaches by drawing upon student interest and engagement in ways which makes learning science meaningful. Purpose: This study examines the integration of informal/free choice learning which occurred during learning experiences outside school (LEOS) with classroom learning using digital technologies. Specifically, the digital technologies comprised a learning management system (LMS), Moodle, which fits well with students’ lived experiences and their digital world. Design and Method: This study examines three out-of-school visits to Informal Science Institutes (ISI) using a digitally integrated fieldtrip inventory (DIFI) Model. Research questions were analysed using thematic approach emerging along with semi-structured interviews, before, during and after the visit, and assessing students’ learning experiences. Data comprised photographs, field notes, and unobtrusive observations of the classroom, wiki postings, student work books and teacher planning diaries. Results: We argue, that pre- and post-visit planning using the DIFI Model is more likely to engage learners, and the use of a digital learning platform was even more likely to encourage collaborative learning. The conclusion can also be drawn that students’ level of motivation for collaborative learning positively correlates with their improvement in academic achievement.  相似文献   
997.
This study examined whether factors affecting first language reading acquisition also affect English Foreign Language (EFL) reading acquisition. Hebrew (L1) and EFL reading related measures were administrated to 145 fourth graders from the north of Israel who were beginning their first year of English instruction. Results from a Linear Structural Equational Analysis (LISREL) showed that the Hebrew independent variable consisting of morphological and phonological awareness, orthographic ability, and word reading (accuracy and speed) predicted EFL knowledge of letter sounds and names, word attack and reading comprehension. In addition to the Hebrew independent variable, English word recognition (accuracy and speed) predicted English reading comprehension. These results support the Linguistic Coding Differences Hypothesis (LCDH), which argues for core linguistic abilities that influence first and subsequent language reading acquisition.  相似文献   
998.
ABSTRACT

This article considers a project that used the Social Return on Investment (SROI) methodology to describe and measure the social impact of Turner Contemporary art gallery in Margate, a coastal town in the South East of England. The article details the reasons why the methodology was chosen by the gallery, setting this in the context of the wider debate around evaluation and social impact reporting. A section of the research and analysis, which was carried out by COaST, a consultancy and research centre based within Canterbury Christ Church University, is described in detail, allowing the reader to understand the processes involved in this type of project and the kinds of outcomes that can be delivered using this method. Finally, an account is given of the impact the work had on the management of the gallery, and the ways in which the final report was used.  相似文献   
999.
The author examines the empirical, methodological, theoretical, and practical contributions of the six studies in this special issue on eye tracking as a tool to study and enhance multimedia learning. The design of learning environments involving graphics should be consistent with a research-based theory of how people learn and evidence-based principles of how to help people learn. Research using eye tracking offers a unique path to testing aspects of theories of multimedia learning, particularly concerning perceptual processing during learning. The studies reported in this special issue add to the evidence base on how people learn and think with graphics.  相似文献   
1000.
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