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11.
The age for starting school varies throughout the world, but is usually between the ages of 5 and 7 although nursery education is sometimes provided before then. For the purposes of this article, however, pre-school children are considered to be those up to the age of 5, which is the age at which schooling begins in the United Kingdom.Wherever an age is mentioned, in relation to a suitable toy, it is intended only as a general guide, for children vary to some extent in their rates of development. The differing economic situations, customs, cultures and environments of every country must also affect rates of growth, physical, mental and emotional.Toy designer, Member of the Industrial Society for Artists and Designers. Presenter and adviser on BBC television programmesMaking Toys andParents and Children. Free-lance lecturer and visiting lecturer to Southwark College, on play, toys and toy-making.  相似文献   
12.
13.
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   
14.
The 2017 virtual issue of the Health Information and Libraries Journal (HILJ) is published to link to the 12th International Congress on Medical Librarianship and the 2017 EAHIL Workshop taking place in Dublin, Ireland on 12–16 June 2017. The conference title is Diversity in Practice: integrating, inspiring and innovative and it is exploring how health science librarianship, in all its diversity, is integrating, inspiring and innovating practice. These themes have been used to compile this virtual issue, which contains published articles selected from HILJ from the June 2014 issue through to September 2016. The virtual issue mirrors the format of a regular issue of HILJ, namely a review article, six original articles and our three regular features: ‘Dissertations into Practice’, ‘International Perspectives and Initiatives’ and ‘Teaching and Learning in Action’. All articles included in this virtual issue are available free online.  相似文献   
15.
A major shortcoming of macro-spatial research undertaken to date in Israel pertains to the neglect of state investment-related measures and the extent to which they mediate unequal opportunities to learn (OTL) and educational opportunities between localities. In the present study, OTL refer to class size and high-school tracking patterns. Educational opportunities refer to two measures: the school system's holding power and access to educational credentials. Two specific questions were raised in this respect: first, we looked into the extent to which the size and ethnic stratification of Israeli localities, and their differential dependence on state financial schemes, affect available OTL and educational opportunities. Second, we examined how a locality's OTL affect educational opportunities. The data on which the present study is based are aggregated at locality level and refer to 89 localities, of which 21 were Arab and 78 were Jewish. Bentler's EQS Structural Equation Modeling (SEM) program was applied to test the research questions. The findings suggest that locality characteristics and dependence on state finance directly affect both OTL and educational opportunities. However, the school system's holding power and access to educational credentials is affected by differential mechanisms. On the one hand, locality-level variables and average class size significantly affect the school system's holding power. On the other hand, access to educational credentials is affected primarily by a locality's ethnic affiliation and its dependence on state funding. The implications of these findings for educational policy and reform are then discussed.  相似文献   
16.
This paper presents research findings on childrens’ responses to migratory separation and later reunion in Caribbean families and the needs of these families when parents migrate and leave their children behind. Implications of this type of separation on children, parents and surrogate caregivers are discussed. The challenges that counsellors in both the ‘sending’ and host countries face working with this population are also examined and suggestions made for psychosocial intervention and guidelines for counselling in both societies. The need for culturally competent counsellors to work with the growing population of immigrants in North America and Europe is indicated.  相似文献   
17.
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   
18.
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   
19.
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   
20.
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   
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