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   201篇
  免费   9篇
教育   175篇
科学研究   8篇
各国文化   5篇
体育   4篇
文化理论   2篇
信息传播   16篇
  2023年   2篇
  2022年   1篇
  2021年   3篇
  2020年   7篇
  2019年   7篇
  2018年   8篇
  2017年   11篇
  2016年   12篇
  2015年   7篇
  2014年   6篇
  2013年   46篇
  2012年   9篇
  2011年   4篇
  2010年   4篇
  2009年   9篇
  2008年   3篇
  2007年   7篇
  2006年   5篇
  2005年   4篇
  2004年   7篇
  2003年   4篇
  2002年   4篇
  2001年   1篇
  2000年   2篇
  1999年   1篇
  1998年   1篇
  1997年   2篇
  1996年   2篇
  1995年   3篇
  1994年   3篇
  1993年   3篇
  1992年   3篇
  1991年   1篇
  1989年   1篇
  1988年   2篇
  1987年   1篇
  1985年   1篇
  1984年   1篇
  1982年   2篇
  1981年   1篇
  1979年   2篇
  1977年   2篇
  1976年   2篇
  1975年   1篇
  1974年   1篇
  1965年   1篇
排序方式: 共有210条查询结果,搜索用时 62 毫秒
1.
Students from rural areas face additional burdens, such as affordability, academic preparation, and lack of college-going resources that make seeking, enrolling, and attending college more difficult. Community colleges offer hope to achieve a college degree for many rural students, and well-developed articulation agreements can be one way of improving access for these students.  相似文献   
2.
ABSTRACT

In many countries, collections of historic aircraft, conserved in Air and Space museums or local associations, reflect the importance of a national or local history. Mostly parked outdoors, aircraft suffer from significant corrosion requiring conservation operations. During renovation, metallic parts are often replaced by association members. This can lead to a major loss of information since industrial archives dealing with materials and processes do not always survive. However, if these elements can be considered, they could be a fundamental source of information on the materials originally used and of the technical history of aeronautics. This work reports a thorough study of aluminium-based alloy parts collected on a Breguet aeroplane dating from the 1950s, during its recent renovation. Thanks to an approach coupling multi-scale material characterisation and research in archives, information on the industrial knowledge is revealed. Several historic grades of aluminium-based alloys were found, namely A-U4G, A-U4G1, and A-U3G, depending on the role of the part. Similarly, different protective coatings were identified (anodic oxidation, primers, and paintings), depending on the role of the metallic part and its location in the plane. Knowledge of the materials from bulk metal to the coated surface is necessary for good conservation practices regarding aeronautical heritage artefacts. Related documents and archives also fundamentally help in understanding such complex artefacts.  相似文献   
3.
This article arises from a four week study of a class of 14‐15 year old students. The study explored students’ perception of themselves as writers and the effects of a variety of teaching and learning strategies on their creative writing responses. The aim of the project was to enhance the students’ creative writing, whilst ascertaining whether there were particular activities or types of writing that would lead to students perceiving more satisfactory outcomes in their writing. It answers the research question: What do I observe, and what do my students say, about the experience of different classroom based creative writing tasks?  相似文献   
4.
ABSTRACT

Increased global communication is adjusting traditional models of cross-cultural communication. Specifically, changes in international communication processes have caused increased scrutiny of cross-culture adaptation theory. This is especially true when focusing on the difference between cultural adaptation and functional fitness. The purpose of this research is to address changes in global communications by testing to see if there is a difference between two important theoretical concepts within cross-cultural adaptation theory – linear and non-linear adaptation. Findings indicate that cultural sojourners do not equate cross-cultural adaptation with linear models of functional fitness. Models that equate the two should be revisited.  相似文献   
5.
The hypothesis that aggressive-rejected children are unaware of their social status because they are self-protective when processing negative peer feedback was tested in 3 studies. In Study 1, fourth-grade girls and boys were asked to name peers they liked or disliked, as well as peers they thought liked or disliked them. Comparisons of aggressive-rejected, nonaggressive-rejected, and average status groups revealed that aggressive-rejected children were more unrealistic in their assessments of their social status than were nonaggressive-rejected children. In Study 2, rejected and average boys identified in Study 1 were asked to name who they thought liked or disliked other children from their classroom. Comparisons of perceived and actual nominations for peers revealed that aggressive-rejected children were able to assess the social status of others as well as did nonaggressive-rejected and average status children. Because the difficulties aggressive-rejected children demonstrated in Study 1 did not generalize to judging the status of others in Study 2, the self-protective hypothesis was supported. Study 3 provided a parallel test of this hypothesis under more controlled conditions. Subjects from Study 2 viewed other children receiving rejection feedback from peers in videotaped interactions and received similar feedback themselves from experimental confederates. While all subjects rated self-directed feedback somewhat more positively than other-directed feedback, aggressive-rejected subjects had the largest self-favoring discrepancy between their judgments of self- and other-directed feedback. These findings also suggest that aggressive-rejected children may make self-protective "errors" when judging other children's negative feelings about them. Ethnicity differences in evaluating peer feedback emerged in Studies 1 and 3, raising questions about the impact of minority status on children's evaluations of rejection feedback.  相似文献   
6.
This study proposes a new model, termed the multiple membership piecewise growth model (MM-PGM), to handle individual mobility across clusters frequently encountered in longitudinal studies, especially in educational research wherein some students could attend multiple schools during the course of the study. A real data set containing some students who switched elementary schools was used to demonstrate and explain the MM-PGM. Parameter and model fit differences were compared between the MM-PGM and two other techniques for handling student mobility: the first school-PGM, which only used school membership at the first measurement occasion, and the delete-PGM, which removed mobile students from the analysis. Results indicated that the three approaches of handling mobile students led to different conclusions about the impact of school-level predictors of growth parameters and the school-level variability in the growth rates. Furthermore, deleting mobile students altered the impact of student-level predictors compared to the other two approaches.  相似文献   
7.
To explain students' achievement in the mechanics segment of a college physics course, a causal model is proposed whose variables are the three constructs: Newtonian physics, math ability, and science experience. Each variable specifies several variates, whose numerical values were measured and intercorrelations computed. The Factorial Modeling (FaM) procedure is applied to the data to estimate the coefficients of the proposed model's structural equations. The FaM results indicate that the model is plausible and that its first two variables account for approximately 34% of the variance in the criterion variate, students' mechanics achievement. The implications of the findings for physics instruction are discussed.  相似文献   
8.
In this study, researchers compared the concordance of teacher-level effectiveness ratings derived via six common generalized value-added model (VAM) approaches including a (1) student growth percentile (SGP) model, (2) value-added linear regression model (VALRM), (3) value-added hierarchical linear model (VAHLM), (4) simple difference (gain) score model, (5) rubric-based performance level (growth) model, and (6) simple criterion (percent passing) model. The study sample included fourth to sixth grade teachers employed in a large, suburban school district who taught the same sets of students, at the same time, and for whom a consistent set of achievement measures and background variables were available. Findings indicate that ratings significantly and substantively differed depending upon the methodological approach used. Findings, accordingly, bring into question the validity of the inferences based on such estimates, especially when high-stakes decisions are made about teachers as based on estimates measured via different, albeit popular methods across different school districts and states.  相似文献   
9.
School exclusion and violence are defined with boys as the reference point and relatively little attention is given to the various forms of exclusion—disciplinary exclusion, self‐exclusion and withdrawal from learning—to which girls are subject. Girls in difficulty at school receive less attention than their male peers from policy‐makers, teachers and researchers. They find it more difficult to access resources. The concept of exclusion needs to be expanded to encompass girls’ experiences. This paper explores the policy context in which girls’ exclusion occurs and examines contributory factors, arguing that together they constitute systemic violence. Forms of violence include verbal abuse, psychological violence and the everyday “incivilities” which often go unchallenged in school cultures. The paper draws on research which privileged student voices and considered them alongside those of service providers, to analyse girls’ school experiences, examining violence and exclusion at interpersonal, institutional and structural levels. Issues such as bullying, self‐exclusion, learning difficulties, peer relationships, teacher–student relationships and student pregnancies are considered.  相似文献   
10.
The prominent perceived professional needs of 365 Jordanian and 1,162 Malaysian secondary-level science teachers were examined using the Science Teacher Inventory of Need. These were compared across subgroups of the respective samples and across the two samples. The Jordanian science teachers' needs were in the areas of delivering science instruction, managing science instruction, administering science instructional facilities and equipment, and improving one's competence as a science teacher. The Malaysian science teachers' needs came from those four areas plus the area specifying objectives for science instruction. Needs from the first four areas were shared across the two samples. These needs were similar to ones observed in U.S. samples. The reason for the similarities is questioned.  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