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   36040篇
  免费   426篇
  国内免费   25篇
教育   25091篇
科学研究   3078篇
各国文化   395篇
体育   3599篇
综合类   28篇
文化理论   311篇
信息传播   3989篇
  2021年   327篇
  2020年   536篇
  2019年   784篇
  2018年   1019篇
  2017年   1037篇
  2016年   965篇
  2015年   604篇
  2014年   800篇
  2013年   6560篇
  2012年   729篇
  2011年   801篇
  2010年   630篇
  2009年   683篇
  2008年   705篇
  2007年   666篇
  2006年   630篇
  2005年   550篇
  2004年   827篇
  2003年   635篇
  2002年   682篇
  2001年   648篇
  2000年   701篇
  1999年   589篇
  1998年   344篇
  1997年   355篇
  1996年   435篇
  1995年   363篇
  1994年   374篇
  1993年   335篇
  1992年   492篇
  1991年   510篇
  1990年   472篇
  1989年   542篇
  1988年   476篇
  1987年   494篇
  1986年   473篇
  1985年   556篇
  1984年   452篇
  1983年   441篇
  1982年   372篇
  1981年   348篇
  1980年   346篇
  1979年   486篇
  1978年   379篇
  1977年   340篇
  1976年   314篇
  1975年   269篇
  1974年   284篇
  1973年   256篇
  1971年   263篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
901.
This investigation examines the place of initial and further education in continuing education and training over the life-course of workers across Europe. The evidence presented demonstrates that in countries with a strong orientation towards vocational education, participation in continuing education and training among employees is higher than in countries that mainly provide general education. Moreover, it can be seen that the effect of the vocational orientation of the education system increases over the life-course of workers. The conclusion of this investigation is that further education complements rather than substitutes for initial education. This implies that national education and training policies meant to encourage lifelong learning should not only attempt to expand or redirect training received by already experienced workers, but also try to facilitate participation in initial vocational training.  相似文献   
902.
Promoting technology integration through collaborative apprenticeship   总被引:2,自引:0,他引:2  
Teachers often learn technology skills and integration strategies in intensive seminars, ineffective means for professional learning because experiences are seldom transferred to instructional practices. Thus, effective technology integration requires teachers to obtain learning experiences within the context of their teaching so they can practice, reflect, and modify their practices. Learning in a teaching community is a social process that involves ongoing, on-site, and just-in-time support. Teachers need avenues to continually interact to provide such support across all members of the community. Collaborative Apprenticeship, a professional development model featuring reciprocal interactions, is one such approach to promoting technology integration. Teachers experienced in technology use serve as mentors of peer-teachers' technology applications aimed at improving instruction. Technology is progressively infused as peer-teachers learn to design technology-rich lessons from their technology-savvy peers through modeling, collaboration, and coaching.  相似文献   
903.
Research on counselling is often unknown to or ignored by counsellors. Research that explores counselling from the client’s perspective is even less familiar to most counsellors, perhaps because there is far less of it compared to the quantity of research investigating the process from the counsellor’s point of view. Nevertheless, research presenting the client’s perspective can be a useful guide to both counsellors and their clients. With this aim in mind, this article summarises some of the research that has been conducted from the client’s point of view and suggests implications for counselling practice.  相似文献   
904.
Improving children's attendance is a high priority for Head Start and other early childhood education programs serving low-income children. We conducted a randomized control trial in a major northern city to evaluate the impact of a low-cost intervention designed to promote parents' social capital as a potential influence on children's attendance in Head Start centers. The intervention assigned children to treatment group classrooms based on (a) neighborhood of residence (geography condition) or (b) the geography condition plus the opportunity for parents to form partnerships in support of their children's attendance, or to control group classrooms according to Head Start guidelines only. We did not find impacts on average attendance throughout the year. However, the intervention did lead to increased attendance during the winter when average center attendance was lowest. There were no impacts on fall or spring attendance. Follow-up exploratory analyses of focus groups with parents and staff suggested that parents' level of connection and trust, self-generated partnership strategies, and commitment to their children's education may be factors by which parents' social capital expands and children's attendance improves.  相似文献   
905.
The authors voice teachers' perceptions of their interpersonal experiences with students in both positive and problematic relationships. Interview data from 28 teachers were examined by coding utterances on teacher and student interactions. Results indicate that teachers defined the quality of the relationship mostly by the level of communion (friendly vs. hostile), instead of by the level of agency (in control vs. powerless). Analyses of mentioned teacher and student behavior show a friendly interactional pattern for positive relationships and a hostile pattern for problematic ones. In teachers' perceptions, positive and problematic relationships also differed in context where encounters take place and topic of talk. Contrary to interactions in problematic relationships, encounters in positive relationships were mostly situated outside the classroom context and conversations during these encounters covered a wide range of topics. Implications for teacher education programs are discussed.  相似文献   
906.
This study explored the causes of student disengagement from their doctoral studies in the biological and environmental sciences. The data came from interviews of 40 doctoral students (male?=?15, female?=?25) and underwent qualitative analysis for content. Our results showed that doctoral studies provide multiple contexts for disengagement, such as the scholarly community and supervision, while doctoral students’ sense of distress, cynicism and inefficacy emerged as central components of disengagement. The study identified isolation, indifference, and lack of support and constructive feedback as sources of cynicism, while distress and inefficacy were more often related to failure or lack of progress in research. Our findings indicate that the source of disengagement can vary not only between individuals, but also between the academic activities at hand. Thus, while promoting an engaging doctoral experience, awareness of what typically triggers disengagement in the doctoral journey is vital.  相似文献   
907.
In this essay, I reply to my five commentators in the October 2017 issue of the Roeper Review to my July 2017 article: “ACCEL: A New Model for Identifying the Gifted.” I respond to each in turn. I end with the question I believe most important for those of us interested in giftedness to confront at the present moment.  相似文献   
908.
Electromagnetism is an umbrella encapsulating several different concepts like electric current, electric fields and forces, and magnetic fields and forces, among other topics. However, a number of studies in the past have highlighted the poor conceptual understanding of electromagnetism concepts by students even after instruction. This study aims to identify novel forms of “hands-on” instruction that can result in representational competence and conceptual gain. Specifically, this study aimed to identify if the use of visuohaptic simulations can have an effect on student representations of electromagnetic-related concepts. The guiding questions is How do visuohaptic simulations influence undergraduate students’ representations of electric forces? Participants included nine undergraduate students from science, technology, or engineering backgrounds who participated in a think-aloud procedure while interacting with a visuohaptic simulation. The think-aloud procedure was divided in three stages, a prediction stage, a minimally visual haptic stage, and a visually enhanced haptic stage. The results of this study suggest that students’ accurately characterized and represented the forces felt around a particle, line, and ring charges either in the prediction stage, a minimally visual haptic stage or the visually enhanced haptic stage. Also, some students accurately depicted the three-dimensional nature of the field for each configuration in the two stages that included a tactile mode, where the point charge was the most challenging one.  相似文献   
909.
910.
According to Healthy People (2011), in order to understand the health concerns of the Lesbian, Gay, Bisexual, and Transgender (LGBT), the oppression and discrimination that they have faced must be scrutinized. Among the many issues they face, their estrangement experiences are one of the most understudied. However, little is known about how it is experienced by the gay elderly population, hence, this investigation. This grounded theory purports to describe the process by which estrangement is experienced among the Filipino gay older adults. Strauss and Corbin’s Grounded Theory (1990) design was utilized. A total of 10 gay older persons were purposively chosen to participate in semi-structured interviews. Field texts were subjected to thematic analysis involving open, axial, and selective coding. The study generated The Sailing Model of Estrangement. Remarkably, three phases relative to estrangement emerged, namely: sequestering, striving, and surviving. Primarily, the sequestering phase involves the gay persons’ need to express self, search for acceptance, and its subsequent reactions. The striving phase typifies the struggle in dealing with estrangement leading to either feelings of depression, remorse and shame or positivity, hopefulness, and motivation. Finally, in the surviving phase, gay persons may either feel contented and fulfilled or sad, lonely, and remorseful as they acquiesce aging with estrangement. Findings of the study offer an understanding of how Filipino gay older adults employ coping strategies in response to estrangement.  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