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51.
This project tracked the mid-term evaluation processes, practices, and products of a multinational program to reduce at-risk behaviors for HIV/AIDS among children in Kenya, Tanzania, and Haiti. It focused on participant and community perceptions; program effectiveness in promoting abstinence and monogamy decisions; and factors supporting ongoing resistance, decision persistence, and program sustainability. Instrumentation included focus groups and interviews with 731 participant youth, parents, community stakeholders, and staff; program documents; and expert on-site observations. Program efforts are effective in influencing informational, attitudinal, and behavioral changes across stakeholder groups. Data underscore process effects of specific program tools and features, through participant attributions. Critical relationships between internal and external factors, and collective local practices grown from program knowledge and skills, support risk reduction awareness and behaviors. Systematic evaluation, including design features, can inform similar efforts across national and cultural boundaries. Effective strategies are highlighted and linked to community perceptions and program outcomes.  相似文献   
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Abstract

The objective of this paper is to identify alternative models of regulation that address the problems and opportunities brought about by convergence. Regulatory convergence involves bringing together previously separate industry‐based regulations into a single legal and regulatory framework. Regulators need to consider different levels of and objectives for regulating sectors as well as overcome inconsistencies in regulation that result from traditional separation. These can result in regulatory arbitrage as companies try to choose the laws and bodies that most benefit them. Regulators also must deal with technological uncertainty and competition policies. There are five alternatives for regulating converging industries: status quo regulator, multi‐sector regulator, ICT regulator, coordination among regulators, and minimal regulation. Each of these represents different degrees of change that can be chosen based on circumstances including: competition, path dependency, perceptions about the environment, knowledge, and power.  相似文献   
53.
The objective of this project was to make an institution's patients aware of a new patient portal with contextual links to MedlinePlus. Through partnerships with information technology personnel and LSU Health Shreveport clinics, the Health Sciences Library created and distributed promotional and educational materials and instructed patients on how to use MyChart and access reliable consumer health information via MedlinePlus Connect. Although most patients were not interested in coming to the library for demonstrations, many of them expressed interest in using MyChart. The contextual information in MedlinePlus Connect worked well for most topics. The institutional team leader for MyChart expressed gratitude for librarian involvement.  相似文献   
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In this article, the author studied the effect of the intensity of readers' political preferences on the news firms' incentives to choose between a single- and a multi-ideology strategy (i.e., media uniformity vs. media plurality). The author shows that alternative formalizations of the intensity of readers' preferences alter the equilibrium level of media plurality, given that they affect demand for news. In particular, when the readers' disutility of consuming news that differs from their ideal variety is relatively high for politically close news, the media firms choose a multi-ideology strategy, because the increase in demand is large. On the contrary, when the readers' disutility of consuming news that differs from their ideal variety is relatively low for politically close news, media firms choose a single-ideology strategy because a multi-ideology strategy does not significantly increase demand.  相似文献   
55.
Although technology for automatic grading of multiple choice exams has existed for several decades, it is not yet as widely available or affordable as it should be. The main reasons preventing this adoption are the cost and the complexity of the setup procedures. In this paper, Eyegrade, a system for automatic grading of multiple choice exams is presented. While most current solutions are based on expensive scanners, Eyegrade offers a truly low-cost solution requiring only a regular off-the-shelf webcam. Additionally, Eyegrade performs both mark recognition as well as optical character recognition of handwritten student identification numbers, which avoids the use of bubbles in the answer sheet. When compared with similar webcam-based systems, the user interface in Eyegrade has been designed to provide a more efficient and error-free data collection procedure. The tool has been validated with a set of experiments that show the ease of use (both setup and operation), the reduction in grading time, and an increase in the reliability of the results when compared with conventional, more expensive systems.  相似文献   
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The lack of academic engagement in introductory science courses is considered by some to be a primary reason why students switch out of science majors. This study employed a sequential, explanatory mixed methods approach to provide a richer understanding of the relationship between student engagement and introductory science instruction. Quantitative survey data were drawn from 2,873 students within 73 introductory science, technology, engineering, and mathematics (STEM) courses across 15 colleges and universities, and qualitative data were collected from 41 student focus groups at eight of these institutions. The findings indicate that students tended to be more engaged in courses where the instructor consistently signaled an openness to student questions and recognizes her/his role in helping students succeed. Likewise, students who reported feeling comfortable asking questions in class, seeking out tutoring, attending supplemental instruction sessions, and collaborating with other students in the course were also more likely to be engaged. Instructional implications for improving students’ levels of academic engagement are discussed.  相似文献   
59.
In Portugal, the number of students in higher education increased from 80,000 in 1975 to 381,000 in 2000 (a change from 11% to 53% in the age group 18–22), meaning a major change in the diversity of student population with consequences well known and studied in other countries. The teaching of chemistry at the University of Aveiro, for the first‐year students of science and engineering, has been subjected to continuous attention to implement quality and student‐centred approaches. The work devoted to excellence and deep learning by several authors has been carefully followed and considered. This communication reports research work on chemistry teaching, associated with those developments for first‐year students. The work included the design of strategies and the adoption of teaching and learning activities exploring ways to stimulate active learning by improving the quality of classroom interactions. In addition to regular lectures, large classes' teaching based on student‐generated questions was explored. In order to improve students' motivation and stimulate their curiosity, conference‐lectures were adopted to deal with selected topics of wide scientific, technological and social interest. Quantitative analysis and discussion of selected case studies, together with the organization of laboratory classes based on selected enquiry‐based experiments, planned and executed by students, stimulated deep learning processes. A sample of 32 students was followed in the academic year of 2000/01 and the results obtained are here discussed in comparison with those of a sample of 100 students followed in 2001/02. Particular attention was paid to the quality of classroom interactions, the use of questions by students and their views about the course design.  相似文献   
60.
This paper addresses the development in children’s and adults’ awareness of the benefits of writing through the analysis of change in notetaking while engaged in scientific inquiry over 10 weeks. Participants were given a notebook that they could choose to use. Our results indicate consistent differences between the performance of adults versus children and also across time. First, there were clear differences in the number of participants who chose to take notes. Second, not only did adults write more notes than children, but also the adults’ mean number of notes slightly increased over time, whereas children’s notes actually decreased in frequency. Third, children and adults differed in the types of notes they took. These results are interpreted in terms of participants’ awareness of what needs to be noted in a scientific task and why it needs to be noted, and they suggest implications for educational practice. First, because learners often have inaccurate representations of the task demands and their own future state of knowledge, they do not perceive the utility of notetaking. Second, because of these misperceptions, learners do not refer back to their notes and thereby miss feedback that would spur the refinement of their metacognitive (particularly metastrategic) knowledge and strategy use. Educators need to design opportunities for students to engage in activities that increase metacognitive knowledge of their own cognitive abilities and the demands of the task.  相似文献   
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