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   15164篇
  免费   245篇
  国内免费   22篇
教育   10882篇
科学研究   1548篇
各国文化   141篇
体育   1199篇
综合类   6篇
文化理论   112篇
信息传播   1543篇
  2021年   150篇
  2020年   221篇
  2019年   302篇
  2018年   414篇
  2017年   389篇
  2016年   404篇
  2015年   270篇
  2014年   358篇
  2013年   2668篇
  2012年   351篇
  2011年   373篇
  2010年   331篇
  2009年   269篇
  2008年   316篇
  2007年   290篇
  2006年   288篇
  2005年   256篇
  2004年   265篇
  2003年   240篇
  2002年   216篇
  2001年   471篇
  2000年   327篇
  1999年   283篇
  1998年   139篇
  1997年   175篇
  1996年   154篇
  1995年   153篇
  1994年   164篇
  1993年   132篇
  1992年   202篇
  1991年   211篇
  1990年   219篇
  1989年   220篇
  1988年   181篇
  1987年   178篇
  1986年   186篇
  1985年   227篇
  1984年   180篇
  1983年   165篇
  1982年   149篇
  1981年   148篇
  1980年   130篇
  1979年   179篇
  1978年   143篇
  1977年   135篇
  1976年   103篇
  1975年   120篇
  1974年   117篇
  1973年   116篇
  1971年   105篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
211.
This study employed a qualitative research design to investigate how instructional designers use evaluation in everyday design practice. While past research has examined how designers spend their time, how they generally make decisions, and expert-novice differences, little attention has been paid to use of context, input, process, or product evaluation, from the perspective of practicing designers. Based on interviews of practitioners, our findings included ten themes regarding how designers use evaluation to improve their products. While these results substantiate to some degree the claim that practitioners believe clients will not pay for formal evaluations, they also suggest that practitioners use evaluation in important but less formal ways. Other conclusions regarding the role of evaluation in design are provided and future directions for training and research are discussed.  相似文献   
212.
Substantial evidence documents the superiority of breastfeeding for mothers and breastmilk for babies. Although the American Academy of Pediatrics and the U.S. Healthy People 2010 initiative promote breastfeeding, current breastfeeding rates often fall short of recommendations. This study determined factors associated with exclusive breastfeeding 2 to 4 weeks following discharge from a large, urban, academic medical center striving for Baby-Friendly designation. Results indicated that mothers who breastfed within the first hour of birth (61%) were significantly more likely to be exclusively breastfeeding 2 to 4 weeks after discharge. Incorporating care practices that include a number of the "Ten Steps to Successful Breastfeeding," as recommended by the Baby-Friendly Hospital Initiative, may increase the duration of exclusive breastfeeding after discharge.  相似文献   
213.
The ability to access and understand the meaning of multi-morphemic words is essential for age-appropriate literacy growth as well as for achievement in other participants, such as science and social studies, which are so print-dependent. This paper provides a theoretical basis for focusing on the morphology of English when teaching students who are deaf or hard of hearing to read through a review of the literature on the role of morphology in reading for both hearing students and those with a hearing loss. In addition, the authors review the empirical literature on Signing Exact English (SEE), a system of signing English constructed in which the morphology of words is made visible to children who might not be able to hear them. The authors propose that students' use of SEE can provide a bridge to developing the morphemic awareness so necessary for age-appropriate reading development and achievement.  相似文献   
214.
This article examines the effect that postsecondary education has on earnings and the duration of time spent in the Social Security disability programs for young persons who are deaf or hard of hearing. Our hypothesis is that investments in postsecondary training increase the likelihood of employment for persons who are deaf or hard of hearing and thus reduce dependency on disability-related income support programs. A longitudinal data set based upon records from the National Technical Institute for the Deaf and Social Security administrative records is used for this analysis. We find that those who graduate, even those who graduate with vocational degrees, experience significant earnings benefits and reductions in the duration of time spent on federal disability programs when compared with those who do not graduate with a degree. This finding suggests that reductions in the duration of time spent on Social Security programs are not limited to those with the highest level of scholastic aptitude and that investments in post-secondary education can benefit a broad group of deaf and hard-of-hearing persons. In addition, the data show that individuals who attend college, but withdraw before graduation, fair no better economically than individuals who never attended college.  相似文献   
215.
Given the important role of parent-youth communication in adolescent well-being and quality of life, we sought to examine the relationship between specific communication variables and youth perceived quality of life in general and as a deaf or hard-of-hearing (DHH) individual. A convenience sample of 230 youth (mean age = 14.1, standard deviation = 2.2; 24% used sign only, 40% speech only, and 36% sign + speech) was surveyed on communication-related issues, generic and DHH-specific quality of life, and depression symptoms. Higher youth perception of their ability to understand parents' communication was significantly correlated with perceived quality of life as well as lower reported depressive symptoms and lower perceived stigma. Youth who use speech as their single mode of communication were more likely to report greater stigma associated with being DHH than youth who used both speech and sign. These findings demonstrate the importance of youths' perceptions of communication with their parents on generic and DHH-specific youth quality of life.  相似文献   
216.
Technology was integrated into service-learning activities to create an interactive teaching method for undergraduate students at a large research institution. Chemistry students at the University of Central Florida partnered with high school students at Crooms Academy of Information Technology in interactive service learning projects. The projects allowed UCF students to teach newly acquired content knowledge and build upon course lecture and lab exercises. Activities utilized the web-conferencing tool Adobe Connect Pro to enable interaction with high school students, many of whom have limited access to supplemental educational opportunities due to low socioeconomic status. Seventy chemistry I students created lessons to clarify high school students’ misconceptions through the use of refutational texts. In addition, 21 UCF students enrolled in the chemistry II laboratory course acted as virtual lab partners with Crooms students in an interactive guided inquiry experiment focused on chemical kinetics. An overview of project’s design, implementation, and assessments are detailed in the case study and serve as a model for future community partnerships. Emerging technologies are emphasized as well as a suggested set of best practices for future projects.  相似文献   
217.
218.
This paper reports on a study undertaken with the primary aim of investigating the effect of the storytelling teaching approach on kindergarten children's retention of ideas about the importance of trees. The study also assessed the effect of storytelling on children's intention to participate in a tree planting activity that they had to select from a list of activities. The story that was created included such elements as binary opposites, mental images, mystery, and wonder, according to Kieran Egan's theory. The study utilized a two‐group design, was conducted in three phases (pre‐test, intervention, and post‐test), lasted 11 weeks, and its results provide evidence of the effectiveness of the storytelling approach when compared with the traditional method of expository teaching complemented with visual images (pictures) of trees and their importance to human beings. The pedagogical appropriateness of the story, which was based upon the binary pair of opposites ‘security–insecurity’, is also discussed in the paper.  相似文献   
219.
This article chronicles the coordination and better integration of existing institutional resources to support cocurricular themes embedded in the provision of a large enrollment, video‐mediated undergraduate operations management (OM) course. The name Project Cheddarfield refers to a 2008 initiative in which two professors team‐taught an OM course to over 600 undergraduates on two different continents through the repeated rapid exchange of digital video between the United States and Singapore. Simultaneously infused in this core curricular delivery were themes of global awareness and study‐abroad, including the promotion of one particular opportunity that bridged the two campuses. This action research narrative spans over 5 years of related activity leading up to the initiative, as this project is best understood as a trajectory, or the evolving result of design adapting to unfolding realities.  相似文献   
220.
This paper presents the concept of critical flexibility as an alternative to eclecticism in instructional design. Eclecticism is often viewed as a persuasive alternative to theoretical orthodoxy (i.e., rigid use of a single perspective or process) due to the openness and flexibility it purports to offer. In contrast, the authors argue that eclecticism ignores or discourages critical reflection regarding background understanding (e.g., implicit assumptions and values) and perpetuates the lack of openness and flexibility commonly associated with orthodoxy. Critical flexibility, as an alternative to eclecticism, emphasizes an awareness of background understanding, but construes it as capable of being explicated, critically examined, adjusted in specific contexts, and refined or developed over time to facilitate increasingly flexible and effective design practices. The authors clarify the nature of critical flexibility as a general way of being involved in the design process, suggest how it helps overcome the traditional theory–practice split, and discuss several of its implications for scholarship and training.  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