排序方式： 共有14条查询结果，搜索用时 453 毫秒
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汗水皮肤上蒸发会降低体温，但是由于衣服吸附湿气，反而使体温升高，让人出更多汗为了解决这个问题，服装生产商向运动服市场推出具有“控制湿气”功能的面料，它可以通过毛细管作用将汗液带走，因此衣服很容易干，这是第一批即将推出的高科技面料。 相似文献
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如果你用过自动售货机，街机或者老虎机，投稿面值1美元，5美元，10美元或者20美元的纸钞，它们就会经过“难钞器”的仔细检查。从1960年代末首次用于检验1美元纸钞以来，这种笨重的传感器几乎没有过什么变化，但最近几年，它们也逐渐开始应用高科技了。 相似文献
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Robert Smith John Fischetti Deron Fort Tilly Gurley Mike Kelly 《The Educational forum》2013,77(3):383-394
Early colleges are one alternative to the traditional comprehensive high school. This article describes the establishment of an early college in partnership with a university, including the experiences for students, the challenges for teachers, and the difficulties in bridging higher and kindergarten through Grade-12 educations. The article considers the potential for these new, small high schools to impact the traditional high school. 相似文献
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Abstract Within the current national context of educational reform, educators are generating a new paradigm about teaching and learning. This shift is occurring as a consequence of rethinking nearly all aspects of schooling. The new paradigm is competing with, an older one. Time will tell whether or not the new one will replace the old one, but clearly they cannot coexist because they are so fundamentally different. The new paradigm is based on the latest research on cognitive developmental and constructivist theory, and the old paradigm is based on reductionist principles and behavioral theory. This article creates a framework for understanding the paradigm shift, describes how the shift applies to instructional practices, synthesizes several principles and indicators that can guide the observation of teaching, and discusses issues yet to be resolved. 相似文献
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Marco A. Muñoz John C. Fischetti Joseph R. Prather 《Journal of Education for Students Placed at Risk》2014,19(1):36-52
The Early College High School (ECHS) initiative developed in response to calls to significantly decrease the number of first-generation college and underserved students of color and from poverty who are high school dropouts or marginally graduates (i.e., ill prepared for college). The ECHS model is different from other educational reforms in that secondary and postsecondary faculty work collaboratively to align curriculum and supports that facilitate a successful high school-to-college transition. The purpose of this study was to evaluate the effects of the initial implementation of ECHS on student achievement and nonacademic indicators in a high-poverty setting. Results indicated that, after an initial year of implementation, achievement results on criterion-referenced tests were significantly higher for all students relative to matched control students, but the statistically and practically significant impact on norm-referenced tests was limited to students enrolled in ECHS courses; school attendance remained the same, but suspensions were decreased. Implications for high school reform and research are discussed. 相似文献