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   174篇
  免费   4篇
教育   143篇
科学研究   8篇
各国文化   2篇
体育   8篇
信息传播   17篇
  2023年   1篇
  2022年   3篇
  2021年   4篇
  2020年   1篇
  2019年   7篇
  2018年   5篇
  2017年   15篇
  2016年   10篇
  2015年   5篇
  2014年   10篇
  2013年   42篇
  2012年   7篇
  2011年   8篇
  2010年   2篇
  2009年   2篇
  2008年   9篇
  2007年   3篇
  2006年   2篇
  2005年   2篇
  2004年   4篇
  2002年   1篇
  2001年   2篇
  2000年   2篇
  1999年   5篇
  1997年   2篇
  1995年   1篇
  1994年   1篇
  1993年   1篇
  1992年   3篇
  1991年   1篇
  1990年   2篇
  1989年   1篇
  1988年   2篇
  1987年   1篇
  1985年   2篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1977年   1篇
  1976年   4篇
  1967年   1篇
排序方式: 共有178条查询结果,搜索用时 78 毫秒
31.
This study aimed to systematically assess the readiness of five countries – Brazil, the Former Yugoslav Republic of Macedonia, Malaysia, Saudi Arabia, and South Africa – to implement evidence-based child maltreatment prevention programs on a large scale. To this end, it applied a recently developed method called Readiness Assessment for the Prevention of Child Maltreatment based on two parallel 100-item instruments. The first measures the knowledge, attitudes, and beliefs concerning child maltreatment prevention of key informants; the second, completed by child maltreatment prevention experts using all available data in the country, produces a more objective assessment readiness. The instruments cover all of the main aspects of readiness including, for instance, availability of scientific data on the problem, legislation and policies, will to address the problem, and material resources. Key informant scores ranged from 31.2 (Brazil) to 45.8/100 (the Former Yugoslav Republic of Macedonia) and expert scores, from 35.2 (Brazil) to 56/100 (Malaysia). Major gaps identified in almost all countries included a lack of professionals with the skills, knowledge, and expertise to implement evidence-based child maltreatment programs and of institutions to train them; inadequate funding, infrastructure, and equipment; extreme rarity of outcome evaluations of prevention programs; and lack of national prevalence surveys of child maltreatment. In sum, the five countries are in a low to moderate state of readiness to implement evidence-based child maltreatment prevention programs on a large scale. Such an assessment of readiness – the first of its kind – allows gaps to be identified and then addressed to increase the likelihood of program success.  相似文献   
32.
Universities and graduate education are increasingly viewed as part of the emerging lifelong learning and education system and we see the evidence of this as the average age of graduate students increases. We are also seeing an increasing emphasis on education for employment in the lifelong learning and education literature, and this discourse is now infiltrating universities and graduate education; graduate education is increasingly referred to as graduate training and is being recast as vocational training. In this meditation I examine these changes in graduate education in light of the developmental needs of graduate students in the second half of life viewed through the lens of Jungian psychology, and discuss implications of the developmental needs of graduate students in the second half of life for graduate education. This is followed by examining the implications that changes in graduate programs have for graduate students in the second half of life.  相似文献   
33.
Background and purpose:

The purpose of this study was to investigate the comparative effects of a prediction/discussion-based learning cycle (HPD-LC), conceptual change text (CCT) and traditional instruction on 10th grade students’ understanding of genetics concepts.

Sample:

Participants were 112 10th basic grade male students in three classes of the same school located in an urban area. The three classes taught by the same biology teacher were randomly assigned as a prediction/discussion-based learning cycle class (n?=?39), conceptual change text class (n?=?37) and traditional class (n?=?36).

Design and method:

A quasi-experimental research design of pre-test–post-test non-equivalent control group was adopted. Participants completed the Genetics Concept Test as pre-test–post-test, to examine the effects of instructional strategies on their genetics understanding. Pre-test scores and Test of Logical Thinking scores were used as covariates.

Results:

The analysis of covariance showed a statistically significant difference between the experimental and control groups in the favor of experimental groups after treatment. However, no statistically significant difference between the experimental groups (HPD-LC versus CCT instruction) was found.

Conclusions:

Overall, the findings of this study support the use of the prediction/discussion-based learning cycle and conceptual change text in both research and teaching. The findings may be useful for improving classroom practices in teaching science concepts and for the development of suitable materials promoting students’ understanding of science.  相似文献   
34.
通过对I~2C总线的特性的描述,给出51系列单片机的编程实现;以及通过24LC16B的引入,展现了一个用I~2C总线设计的实用产品的蓝图。  相似文献   
35.
36.
37.
This study examined 191 high school students’ willingness to recite the Pledge of Allegiance, their reasons for participating or not participating in saying the Pledge, and their thoughts about the Pledge during this daily school ritual. The study was conducted in a rural town next to the Akwesasne Mohawk reservation. The majority of the students chose not to recite the Pledge, and Mohawk students were less likely to recite the Pledge than their classmates.  相似文献   
38.
Despite a clear improvement of search and retrieval temporal applications, current search engines are still mostly unaware of the temporal dimension. Indeed, in most cases, systems are limited to offering the user the chance to restrict the search to a particular time period or to simply rely on an explicitly specified time span. If the user is not explicit in his/her search intents (e.g., “philip seymour hoffman”) search engines may likely fail to present an overall historic perspective of the topic. In most such cases, they are limited to retrieving the most recent results. One possible solution to this shortcoming is to understand the different time periods of the query. In this context, most state-of-the-art methodologies consider any occurrence of temporal expressions in web documents and other web data as equally relevant to an implicit time sensitive query. To approach this problem in a more adequate manner, we propose in this paper the detection of relevant temporal expressions to the query. Unlike previous metadata and query log-based approaches, we show how to achieve this goal based on information extracted from document content. However, instead of simply focusing on the detection of the most obvious date we are also interested in retrieving the set of dates that are relevant to the query. Towards this goal, we define a general similarity measure that makes use of co-occurrences of words and years based on corpus statistics and a classification methodology that is able to identify the set of top relevant dates for a given implicit time sensitive query, while filtering out the non-relevant ones. Through extensive experimental evaluation, we mean to demonstrate that our approach offers promising results in the field of temporal information retrieval (T-IR), as demonstrated by the experiments conducted over several baselines on web corpora collections.  相似文献   
39.
40.
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