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261.
Mt, Qingcheng, known as a birthplace of Taoism, is located 1 6 kilometers away from the world-famous Dujiangyan Irrigation System in Chengdu, southwest Sichuan Province. Dubbed as "the most peaceful and secluded mountain under heaven", it attracts numerous visitors from home and abroad with lush ancient vegetation and intriguing historic buildings.  相似文献   
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263.
IntroductionTo ensure the quality of the new-born screening (NBS), our laboratory reviewed the analytical procedure to detect subjective steps that may represent a risk to the patient. Two subjective activities were identified in the extra-analytical phases: the classification of dried blood spots (DBS) according to their quality and the assignment of haemoglobin patterns. To keep these activities under control, inter-rater studies were implemented. This study aimed to evaluate the inter-rater reliability and the effectiveness of the measures taken to improve the agreement between observers, to assure NBS results’ quality.Materials and methodsDried blood spots specimens were used for the inter-rater studies. Ten studies were performed to assess DBS quality classification, and four to assess the assignment of haemoglobin patterns. Krippendorff’s alpha test was used to estimate inter-rater reliability. Causes were investigated when alpha values were below 0.80.ResultsFor both activities, the reliability obtained in the first studies was inadequate. After investigation, we detected that the criterion to classify a DBS as scant was not consolidated, and also a lack of consensus on whether or not to report Bart’s haemoglobin depending on its percentage. Alpha estimates became higher once the training was reinforced and a consensus about the appropriate criteria to be applied was reached.ConclusionInter-rater reliability assessment helped us to ensure the quality of subjective activities that could add variability to NBS results. Furthermore, the evolution of the alpha value over time allowed us to verify the effectiveness of the measures adopted.  相似文献   
264.
In contrast to unregulated school choice, regulated choice programs oversee the assignment of students to schools with equity in mind. This article puts forth evidence for three claims with respect to unregulated and regulated school choice: (c) Unregulated choice plans tend to exacerbate the stratification of students along race, class, and achievement lines; (b) regulated choice programs have the potential to increase the integration of schools and, at the very least, to prevent further social stratification; and (c) the evidence that suggests unregulated choice programs lead to improved academic achievement or curriculum innovation is unconvincing. By influencing the racial and social class composition of schools, choice programs help determine the human capital obtained by students and families. Exposure to new cultural and social forms of human capital can lead to enhanced life opportunities for all children, but particularly to those who do not otherwise have access to such capital in a hegemonic society. Considerations of social justice suggest that policymakers should continue to search for ways to design school choice programs that promote integration.  相似文献   
265.
Thirty years of intervention research on the effects of reading comprehension strategies for students with learning disabilities was reviewed in this quantitative synthesis. Specifically, researchers targeted studies that contained self‐regulated learning components. A systematic search yielded 18 studies from nine research journals that met specified inclusion criteria. Studies were evaluated for methodological quality and to identify types of instructional and self‐regulation components within interventions. Large effect sizes were found immediately after instruction and after a time delay, suggesting that instruction in reading comprehension strategies that contain self‐regulation components may have a long lasting impact on student performance. Implications for research and practice are discussed.  相似文献   
266.
The paper presents the findings of a study of the decision-making process which precedes the choice of a university in Greece. Specifically, the degree of rationality exhibited by prospective students is assessed in an attempt to provide a test for the economic approach to the explanation of human behaviour. Information search is used as an indication of rationality and measured through a survey conducted among 220 university students in the academic year 2003/2004. The findings provide weak support for the rationality postulate in that they indicate that more than 40% of respondents could not be classified as information seekers. Logistic regression analysis was used in order to identify characteristics associated with the propensity to engage in information search: high socioeconomic status students, students who perceived the decision as important, and students who had acquired information prior to the choice of a university were found to be more likely to engage in information search. The paper draws attention to the limitations of the economic rational man model of human behaviour and discusses the implications of the findings for the promotional strategy of universities.  相似文献   
267.
This research coded 40 leaders’ communication and used 172 subordinates’ questionnaires to analyze the relationship of leader communication behavior to commitment. A hierarchical multiple regression was performed for two types of organizations. At hospitals, leaders’ consideration style and reinforcement related positively to subordinate commitment, while interruption and humor related negatively. At a city government, initiating structure style and professionalism related positively to commitment; reinforcement and interruption related negatively.  相似文献   
268.
This study examines children’s strategies when scanning a document to answer a specific question. More specifically, we wanted to know whether they make use of organizers (i.e., headings) when searching and whether strategic search is related to their knowledge of reading strategies. Twenty-six French fifth graders were asked to search single-page documents presented on the screen of an eye tracker in order to respond to questions requiring the location of information in either a single paragraph (Location questions) or multiple paragraphs (Comparison questions). Location questions were easier and faster to answer than Comparison questions. The presence of headers led to more selective reading strategies but did not significantly speed up the search. Strong individual differences were observed in children’s scanning strategies: Some systematically fixated headers, whereas others did not. These differences were not significantly related to the participants’ decoding or comprehension skills but rather to their knowledge of reading strategies.  相似文献   
269.
The present study examined the predictive validity of a dynamic test of decoding in which participants are taught three novel letters and how to synthesize the corresponding letter sounds into new words. One version of this dynamic test was administered to 158 kindergarten children before the onset of formal reading instruction along with traditional predictors of reading. Similarly, a parallel version of the dynamic test was administered to the same children after a few months of formal reading instruction. At the end of grade 2, the children were assessed on outcome measures of reading and categorized as having disabilities with either accuracy or fluency measures. Administered before as well as after the onset of formal reading instruction, the dynamic test of decoding contributed uniquely to the prediction of difficulties with reading accuracy at the end of grade 2 after control for traditional predictors of reading. Difficulties with reading fluency were also predicted by the dynamic decoding test, but the unique prediction value was more limited. This study showed that a dynamic assessment of decoding can be a useful addition to traditional test batteries for early identification of children at risk for reading disabilities. Even when taken before formal reading instruction, a combination of the dynamic assessment and two traditional measures (letter knowledge and rapid automatized naming) yielded a very high prediction accuracy of reading difficulties at the end of grade 2.  相似文献   
270.
We have developed a teaching‐learning sequence (TLS) on friction based on a preliminary study involving three dimensions: an analysis of didactic research on the topic, an overview of usual approaches, and a critical analysis of the subject, considered also in its historical development. We found that mostly the usual presentations do not take into account the complexity of friction as it emerges from scientific research, may reinforce some inaccurate students’ conceptions, and favour a limited vision of friction phenomena. The TLS we propose begins by considering a wide range of friction phenomena to favour an initial motivation and a broader view of the topic and then develops a path of interrelated observations, experiments, and theoretical aspects. It proposes the use of structural models, involving visual representations and stimulating intuition, aimed at helping students build mental models of friction mechanisms. To facilitate the reproducibility in school contexts, the sequence is designed as an open source structure, with a core of contents, conceptual correlations and methodological choices, and a cloud of elements that can be re‐designed by teachers. The sequence has been tested in teacher education and in upper secondary school, and has shown positive results in overcoming student difficulties and stimulating richer reasoning based on the structural models we suggested. The proposed path has modified the teachers’ view of the topic, producing a motivation to change their traditional presentations. The open structure of the sequence has facilitated its implementation by teachers in school in coherence with the rationale of the proposal.  相似文献   
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