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   159篇
  免费   2篇
  国内免费   2篇
教育   118篇
科学研究   8篇
各国文化   2篇
体育   5篇
综合类   1篇
文化理论   1篇
信息传播   28篇
  2023年   1篇
  2021年   4篇
  2020年   1篇
  2019年   4篇
  2018年   2篇
  2017年   2篇
  2016年   3篇
  2015年   3篇
  2014年   7篇
  2013年   37篇
  2012年   4篇
  2011年   7篇
  2010年   4篇
  2009年   3篇
  2008年   6篇
  2007年   5篇
  2006年   5篇
  2005年   7篇
  2003年   7篇
  2002年   4篇
  2001年   2篇
  2000年   3篇
  1999年   1篇
  1998年   1篇
  1997年   5篇
  1995年   3篇
  1994年   4篇
  1993年   3篇
  1992年   2篇
  1991年   2篇
  1986年   2篇
  1985年   1篇
  1983年   3篇
  1982年   1篇
  1981年   1篇
  1980年   1篇
  1979年   3篇
  1978年   2篇
  1977年   1篇
  1975年   2篇
  1972年   1篇
  1967年   1篇
  1964年   1篇
  1963年   1篇
排序方式: 共有163条查询结果,搜索用时 15 毫秒
91.
92.
93.
We present a droplet-based microfluidic system for performing bioassays requiring controlled analyte encapsulation by employing highly flexible on-demand droplet generation. On-demand droplet generation and encapsulation are achieved pneumatically using a microdispensing pump connected to a constant pressure source. The system generates single droplets to the collection route only when the pump is actuated with a designated pressure level and produces two-phase parallel flow to the waste route during the stand-by state. We analyzed the effect of actuation pressure on the stability and size of droplets and optimized conditions for generation of stable droplets over a wide pressure range. By increasing the duration of pump actuation, we could either trigger a short train of identical size droplets or generate a single larger droplet. We also investigated the methodology to control droplet contents by fine-tuning flow rates or implementing a resistance bridge between the pump and main channels. We demonstrated the integrated chip for on-demand mixing between two aqueous phases in droplets and on-demand encapsulation of Escherichia coli cells. Our unique on-demand feature for selective encapsulation is particularly appropriate for bioassays with extremely dilute samples, such as pathogens in a clinical sample, since it can significantly reduce the number of empty droplets that impede droplet collection and subsequent data analysis.  相似文献   
94.
An ongoing research project has been focusing on the changing roles of colleagues based both in school and in college who are involved in the supervision of students in school and on their professional development needs.

This article focuses on three elements of the research findings which we have obtained from the collation and analysis of the evaluations of the programmes so far. box Aspects of the training which have been most useful

box Issues arising from the meetings of the mentor support groups

box Implications for the continuing professional development and career development of the mentors

The findings have been further informed by a series of semi‐structured interviews.  相似文献   
95.
据《深圳特区报》报道,作为深圳大学城的标志性建筑之一,总投资2亿元的深圳大学城图书馆将于明年2月建成,成为深圳市第二大图书馆。  相似文献   
96.
Anecdotal evidence and statistics indicate that transition to secondary school for children who are “Looked After” is likely to present challenges. The present study aimed to find out the key factors that support Looked After children through this transition, as perceived by the main stakeholders. Data were gathered in two stages, using semi-structured interviews, from Year 6 and Year 7 children and their teachers and carers. Analysis of the results indicates that many different factors may support or hinder the transition, ranging from within-child factors such as resilience and social skills to systemic factors such as the extent of multi-agency working and school admission policies. Four key principles emerged from the results, which may be used to inform tailored transition packages to support children in this vulnerable group through transition. They emphasise the importance of planning and information sharing between key stakeholders, minimising difference, and offering holistic and individualised support.  相似文献   
97.
Although many studies have investigated citizens' attitudes toward polls and the political consequences, there have been no studies examining the effects of social network site (SNS) users' opinion environments on their poll skepticism. Based on prior studies on poll skepticism, we examine the relationship between perceived SNS opinion environments, poll skepticism, perceived concerns over the negative influence of the polls, and voting intention in an upcoming election. Using the survey data of the 2012 South Korean General Election, this study found that if the published polls are against respondents' political position, their homophilous SNS opinion environments promote poll skepticism, and augmented poll skepticism leads to concerns over the negative influence of the polls on other voters, which in turn increases voting intention.  相似文献   
98.
The article presents the rationale, methodology, and selected outcomes from More than a body's work, a collaborative, international, arts educational interactive research project. The project, taking place in both New York and England, explored the ways in which young people construct and ‘perform’ identity through the construction of their body and its appearance. The project's central intention was both to investigate diversity in young people's personal and cultural experience, and demonstrate their potential for creative engagement in mediating and expressing identity through a visual form. With its inclusive ethos, More than a body's work facilitated opportunities for young people who may not ordinarily have access to the arts to be partners in collaborative arts production, generating models of wider participation through innovative participatory approaches to visual art and interdisciplinary practice. The ongoing project is developmental, continuing to involve young people as participants, responding to the synthesis of local, national and international influences creatively deployed within youth culture. In considering More than a body's work's significance as a model for inclusive practice within art education, the article will discuss its strategies and its potential impact in relation to current initiatives and policies within the arts, culture and education.  相似文献   
99.
In efforts to increase the field and society's understanding of bullying, the authors investigated how various forms of attachment (mother, peer, and school) are directly and indirectly related to bullying behavior through empathy, and whether these relationships are moderated by gender. Adolescents, of grades 7 through 9, from one middle school in Seoul were surveyed. Using structural equation modeling, the study identified significant gender differences in the direct and indirect effects of attachment on bullying behavior. For male students, greater school attachment was directly related to less bullying behavior and maternal and peer attachment had indirect effects on bullying behavior, mediated by student cognitive empathy. For female students greater maternal attachment was directly related to less bullying behavior, and peer attachment had an indirect effect on bullying behavior, mediated by student affective empathy. The study provides evidence supporting increased emphasis on empathy development in bullying prevention programs.  相似文献   
100.
Do nurses have access to the tools and resources they need for evidence-based practice? Are librarians prepared to work with nurses to provide access to appropriate resources and services, and teach the needed information literacy skills? The authors work with professional library and nursing organizations to present interdisciplinary continuing education to improve the information literacy of nurses and the ability of librarians to provide resources and services that meet nurses' information needs. This article reviews behavioral and practice changes reported by nurses and librarian participants in symposia on evidence-based nursing in March 2001 and May 2003.  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