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71.
Halszka Jarodzka Thomas Balslev Kenneth Holmqvist Marcus Nystr?m Katharina Scheiter Peter Gerjets Berit Eika 《Instructional Science》2012,40(5):813-827
Complex perceptual tasks, like clinical reasoning based on visual observations of patients, require not only conceptual knowledge about diagnostic classes but also the skills to visually search for symptoms and interpret these observations. However, medical education so far has focused very little on how visual observation skills can be efficiently conveyed to novices. The current study applied a novel instructional method to teach these skills by showing the learners how an expert model visually searches and interprets symptoms (i.e., eye-movement modelling examples; EMMEs). Case videos of patients were verbally explained by a model (control condition) and presented to students. In the experimental conditions, the participants received a recording of the model’s eye movements superimposed on the case videos. The eye movements were displayed by either highlighting the features the model focused on with a circle (the circle condition) or by blurring the features the model did not focus on (the spotlight condition). Compared to the other two conditions, results show that a spotlight on the case videos better guides the students’ attention towards the relevant features. Moreover, when testing the students’ clinical reasoning skills with videos of new patient cases without any guidance, participants studying EMMEs with a spotlight showed improved their visual search and enhanced interpretation performance of the symptoms in contrast to participants in either the circle or the control condition. These findings show that a spotlight EMME can successfully convey clinical reasoning based on visual observations. 相似文献
72.
This paper uses student level data from New York City to study the relationship between a public school losing enrollment to charter school competitors and the academic achievement of students who remain enrolled in it. Geographic measures most often used to study the effect of school choice policies on public school student achievement are not well suited for densely populated urban environments. I adopt a direct approach and measure charter school exposure as the percentage of a public school's students who exited for a charter school at the end of the previous year. Depending on model specification, I find evidence that students in schools losing more students to charter schools either are unaffected by the competitive pressures of the choice option or benefit mildly in both math and English. 相似文献
73.
Anna Neubauer Caterina Gawrilow Marcus Hasselhorn 《Learning and individual differences》2012,22(6):770-777
A preschooler's ability to delay gratification in the waiting task is predictive of several developmental outcomes, despite this task's relatively low reliability level. Success in this task depends on the use of distraction strategies. The new Watch-and-Wait Task (WWT) has been developed to enhance reliability and to investigate whether the waiting situation is equally predictive if distraction from the reward is inhibited. To prevent distraction in the WWT, children were instructed to watch an hourglass run out during the waiting period. In a reliability analysis (n = 31) the WWT showed acceptable retest reliability. In a second study (n = 61), the time preschoolers spent waiting in the WWT was associated with later academic achievement and behavioral problems diagnosed at the end of grade 1, even after controlling for intelligence, gender and age. Overall, the WWT proved to be a reliable instrument predictive of children's behavioral and academic development. 相似文献
74.
Anna-Lena Preßler Tanja Könen Marcus Hasselhorn Kristin Krajewski 《Reading and writing》2014,27(2):383-406
The aim of the present study was to empirically disentangle the interdependencies of the impact of nonverbal intelligence, working memory capacities, and phonological processing skills on early reading decoding and spelling within a latent variable approach. In a sample of 127 children, these cognitive preconditions were assessed before the onset of formal education, whereas reading as well as spelling achievement was measured at the end of grade 1. The findings indicate that working memory does contribute to the prediction of early reading and spelling, and that this contribution outperforms that of general intelligence and phonological recoding from long-term memory during the early steps of reading and spelling acquisition. Moreover, the results show that phonological awareness mediates the effects of working memory capacities on early literacy outcomes. The role of working memory and phonological awareness as key cognitive preconditions of early reading and spelling are discussed. 相似文献
75.
Abbie Grace Nenagh Kemp Frances Heritage Martin Rauno Parrila 《Reading and writing》2014,27(5):855-873
Research investigating whether people’s literacy skill is being affected by the use of text messaging language has produced largely positive results for children, but mixed results for adults. We asked 150 undergraduate university students in Western Canada and 86 in South Eastern Australia to supply naturalistic text messages and to complete nonword reading and spelling tasks. The Australian students also completed two further real word and nonword reading tasks, a spoonerisms task, a questionnaire regarding their reading history, and a nonverbal reasoning task. We found few significant correlations between literacy scores and both use of textisms (such as u for you) and measures of texting experience. Specifically, textism use was negatively correlated with spelling for the Canadian students, and with scores for timed nonword reading, spoonerisms, and Adult Reading History for the Australian students. Length of phone ownership was negatively correlated with spelling (Canadians), but positively correlated with Word Attack scores (Australians), whereas daily message sending volumes were negatively correlated with Word Attack scores (Australians). Australian students who thought that using textisms was more appropriate had poorer nonword reading and reported having had more difficulty learning to read, than those who found it less appropriate. We conclude that there is inconsistent evidence for negative relationships between adults’ use of textisms and their literacy skills, and that these associations may be influenced by attitudes towards the appropriateness of textism use. A model of the potential relationship between adults’ textism use and literacy skills is presented. 相似文献
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77.
Community structure research investigates the influence of the local community and specific demographic groups in the community on the degree of emphasis that particular public issues receive in a local newspaper. In contrast to this internal source of influence, intermedia agenda setting emphasizes the external influence of other news media and the national journalistic culture on the news decisions of local daily newspapers. To invoke a cliché, the agenda-setting and community structure perspectives are opposite sides of the same coin and should be considered in tandem. The research design and procedure for statistical analysis presented here, which involves the simultaneous investigation of the influence resulting from community structure and intermedia agenda setting, is a path for new research that can present a detailed explication of the balance between local and national influence on the issue agenda of local daily newspapers. 相似文献
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Grace M. Wadholm 《Behavioral & Social Sciences Librarian》2013,32(3):63-80
ABSTRACT Brazil is a unique and vibrant country. Researching the diverse cultures of Brazil, although a fascinating pursuit for many individuals, is made difficult by the vast amount of information available for this topic, published in many different languages. In an effort to bring together materials from various sources, assess their quality, and provide a listing of high quality titles, this bibliography presents a compilation of relevant materials from a wide variety of resources. 相似文献