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We explore how a firm’s knowledge structure characteristics and market identity—as reflected in its position in the industry value chain and market status—influence knowledge-based alliance (KBA) formation. We propose that a firm’s propensity to form KBAs is affected by the congruence (or misalignment) between its knowledge structure characteristics (i.e., knowledge depth and scope) and the role it plays in the industry, as demanded by its position in the value chain. We further argue that while a firm’s market status can amplify the positive effect of the congruence, thereby enhancing a firm’s proclivity to form KBAs, being prominent can also hurt a firm when it faces a misalignment between its knowledge structure characteristics and externally induced expectations related to its value chain position. We validate our arguments using panel data on 1051 firm-year observations for 197 firms patenting in the global fuel cell industry for the period 1999–2009. By developing a richer understanding of the relationship between a firm’s knowledge-based resources and KBA formation, we answer the call for a better understanding of how and when firms can leverage their internal knowledge configurations to improve their proclivity to form alliances. 相似文献
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In this study, we assessed the longitudinal effects of social-cognitive mechanisms on the self-reported use of doping substances and supplements among Italian high school students. In total, 1232 students completed questionnaires measuring various psychological factors hypothesized to influence students' intention to use substances. Three months later, 762 of the students completed the same questionnaires a second time and also reported their use of substances during the time between assessments. Overall, the percentages of students using doping substances (2.1%) or supplements (14.4%) were consistent with values reported in the literature. Analysis of the data showed that adolescents' intention to use doping substances increased with stronger attitudes about doping, stronger beliefs that significant others would approve of their use, a stronger conviction that doping use can be justified, and a lowered capacity to resist situational pressure or personal desires. In turn, stronger intentions and moral disengagement contributed to a greater use of doping substances during the previous 3 months. Doping use was also correlated significantly to supplementation. In conclusion, our results provide novel information about some of the psychological processes possibly regulating adolescents' use of doping substances and supplements. The results also highlight possible areas for future study and intervention, focusing on the prevention of adolescents' substance use. 相似文献
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Jonathan L. Brendefur Evelyn S. Johnson Keith W. Thiede Sam Strother Herb H. Severson 《Early Childhood Education Journal》2018,46(2):153-157
There is a critical need to identify primary level students experiencing difficulties in mathematics to provide immediate and targeted instruction that remediates their deficits. However, most early math screening instruments focus only on the concept of number, resulting in inadequate and incomplete information for teachers to design intervention efforts. We propose a mathematics assessment that screens and provides diagnostic information in six domains that are important to building a strong foundation in mathematics. This article describes the conceptual framework and psychometric qualities of a web-based assessment tool, the Primary Math Assessment (PMA). The PMA includes a screener to identify students at risk for poor math outcomes and a diagnostic tool to provide a more in-depth profile of children’s specific strengths and weaknesses in mathematics. The PMA allows teachers and school personnel to make better instructional decisions by providing more targeted analyses. 相似文献
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The Individuals with Disabilities Education Act is explicit in its mandate that students who receive special education services have opportunities to be involved in and progress in the general education curriculum. Teachers providing instruction to students who are deaf or hard of hearing are expected to comply with this federal mandate. To determine if teachers of students who are deaf or hard of hearing throughout the state of Georgia felt adequately prepared to educate this population, a statewide needs assessment survey was conducted. Questionnaires were reviewed from 110 experienced teachers of students who are deaf or hard of hearing. More that half of the teachers who responded judged their teacher preparation program to be appropriate. Specific suggestions for modifications to teacher preparation programs are provided. 相似文献
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Bridget A. Franks David J. Therriault Miriam I. Buhr Evelyn S. Chiang Claire M. Gonzalez Heekyung K. Kwon Jenni L. Schelble Xuesong Wang 《Metacognition and Learning》2013,8(2):145-171
This study explored the abilities of 5th, 8th, and 10th graders, and College students to reason logically about what they read. Both students’ metacognitive behavior (looking back at previously read text) and their performance on logical deduction questions were recorded and analyzed in a reading task. Conditional logic premises and deductive questions were embedded in three narratives containing premise information that was factual (True Story), contrary to fact (False Story), or unverifiable via common world knowledge (Neutral Story). The texts and questions were presented one sentence at a time on a computer screen; participants controlled the presentation of sentences. For answering the questions, three response tasks were devised. One task (labeled Generate) required readers to generate their own logical conclusions in response to deduction questions. Two tasks (labeled Valid and Invalid) required readers to evaluate logically valid or logically invalid conclusions drawn by story characters in the texts. Students in early and late adolescence looked back more when asked to evaluate logical conclusions than when asked to generate conclusions on their own; College students’ lookback frequencies were not significantly affected by response task, but were greater overall than those of younger students. With conditional forms requiring an uncertainty response (Affirmed Consequent and Denied Antecedent), readers looked back more when evaluating logically invalid conclusions than when evaluating logically valid ones. Readers of all ages were more likely to agree with story characters’ (valid) uncertain conclusions with the AC and DA forms than they were to disagree with story characters’ (invalid) certain conclusions to these forms. Both lookback frequency and performance on logic questions were lowest when readers were required to reason from contrary to fact premises. 相似文献
87.
Mary Ligon Katie Ehlman Gabriele Moriello Colleen Russo Kamila Miller 《Educational gerontology》2013,39(8):572-583
ABSTRACTOccupational therapy programs have been developed in order to promote health in older adults. However, no published studies have yet been identified for the Spanish population. This study explores the benefits of an occupational therapy health promotion program called EnvejeHaciendo (AgeDoing). The study was conducted with 15 elderly Spanish adults, examining health perception and meaningful occupational participation using the Model of Human Occupation, as well as the pedagogical methodology See, Judge, Act. The results showed an increase in the perception of health with reference to social functioning and the number of roles in which the participants wanted to get involved in the future. The participants changed their own negative perception of elderly people, they adapted to the changes provoked by aging, and they got involved in meaningful activities such as physical exercise or social activities. This program allowed participants to engage in meaningful occupations with other people and to increase perceived health status through raising awareness of difficulties. 相似文献
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