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1.
王亚文 《浙江传媒学院学报》2004,11(2):18-19
教育类报刊由于拥有历史赋予的机遇,一般都拥有巨大的发行量.他们的发行量大到目前为止还不需要靠广告收入来维持生存.但是在越来越激烈的竞争中,这种现状还能维持多久?因此改革迫在眉睫.本文分析了目前教育报刊面临的现实境遇之后,提出教育类报刊只有立足本位,做精做细才能继续立于不败之地. 相似文献
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在新时代背景下,学术期刊作为智库研究成果的传播平台,应该加快转变自身的功能定位,并逐步探索建设智库期刊的成长之路.本文在分析新型智库特点的基础上,结合学术期刊在知识引领方面的严谨性、科学性、专业性和权威性,引入智库期刊的概念.为顺应新时代发展的要求,学术期刊不仅要发挥学术传播、交流、评价和引领的作用,更要实现服务于智库发展的功能.通过开设智库专栏、提高选题系统性、承接国家研究项目、加强期刊与期刊以及期刊与智库间的交流合作等方法,学术期刊可以逐步实现服务于智库建设的功能. 相似文献
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Video-assisted thoracoscopic surgery (VATS) for bilateral primary spontaneous pneumothorax 总被引:3,自引:0,他引:3
Chen YJ Luh SP Hsu KY Chen CR Tsao TC Chen JY 《Journal of Zhejiang University. Science. B》2008,9(4):335-340
Objective:To review our experience of the treatment of bilateral primary spontaneous pneumothorax (PSP) by video-assisted thoracoscopic surgery (VATS). Materials and methods: Retrospective chart review was followed by an on-clinic or telephone interview. Patients were cared for by one thoracic surgeon in four medical centers or community hospitals in Northern and Central Taiwan. Thirteen patients with bilateral PSP underwent bilateral VATS simultaneously or sequentially from July 1994 to December 2005. Results: Twelve males and one female, with age ranging from 15 to 36 years (mean 23.1 years), were treated with VATS for bilateral PSP, under the indications of bilateral pneumothoracis simultaneously (n=4) or sequentially (n=9). The interval between the first and second contra-lateral VATS procedure for non-simultaneous PSP patients ranged from 7 d to 6 years. Eleven of 13 patients (84.6%) had prominent pulmonary bullae/blebs, and underwent bullae resection with mechanical or chemical pleurodesis. The mean operative time was (45.6±18.3) min (range 25-96 min) and (120.6±28.7) min (range 84-166 min) respectively for the non-simultaneous (second VATS for the recurrence of contralateral side after first VATS) and simultaneous (bilateral VATS in one operation) procedures. There was no postoperative mortality. However, prolonged air leakage (>7 d) occurred in one patient (7.7%) who recovered after conservative treatment. The mean duration of chest tube drainage was 3.1 d and the median follow up period was 3.4 years. Conclusions: VATS is a safe and effective procedure in the treatment of bilateral PSP. Bilateral VATS is only recommended for patients with simultaneously bilateral PSP, because the incidence of recurrence, even with visible bullae, was not so high in my group and in some previous literature. Bilateral VATS in a supine position should only be used in selective cases, because of possible pleural adhesion or hidden bullae on the posterior side. 相似文献
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Ting-Chia Hsu 《Interactive Learning Environments》2019,27(2):272-285
This study examines four elements of learner motivation, attention, relevance, confidence, and satisfaction, in an EFL speaking course that uses the computer mediated communication (CMC) tool Google Hangouts. The study found that a preparatory concept mapping task before the CMC sessions improved students’ perceived attention, relevance, confidence, and satisfaction. However, follow-up reflective worksheets had no effect on perceived attention, relevance, confidence, or satisfaction. Instructors should use concept mapping in a pre-task to support learners engaged in CMC-based speaking activities with native and non-native speakers. When the students used concept mapping to prepare for the CMC-based speaking activities, they exhibited higher confidence in their oral practice activities with a native speaker. 相似文献
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Che-Yu Kuo Tsung-Hau Jen Ying-Shao Hsu 《International Journal of Science Education》2013,35(14):2326-2357
The potential of computer-based assessments for capturing complex learning outcomes has been discussed; however, relatively little is understood about how to leverage such potential for summative and accountability purposes. The aim of this study is to develop and validate a multimedia-based assessment of scientific inquiry abilities (MASIA) to cover a more comprehensive construct of inquiry abilities and target secondary school students in different grades while this potential is leveraged. We implemented five steps derived from the construct modeling approach to design MASIA. During the implementation, multiple sources of evidence were collected in the steps of pilot testing and Rasch modeling to support the validity of MASIA. Particularly, through the participation of 1,066 8th and 11th graders, MASIA showed satisfactory psychometric properties to discriminate students with different levels of inquiry abilities in 101 items in 29 tasks when Rasch models were applied. Additionally, the Wright map indicated that MASIA offered accurate information about students’ inquiry abilities because of the comparability of the distributions of student abilities and item difficulties. The analysis results also suggested that MASIA offered precise measures of inquiry abilities when the components (questioning, experimenting, analyzing, and explaining) were regarded as a coherent construct. Finally, the increased mean difficulty thresholds of item responses along with three performance levels across all sub-abilities supported the alignment between our scoring rubrics and our inquiry framework. Together with other sources of validity in the pilot testing, the results offered evidence to support the validity of MASIA. 相似文献
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湖南省信息资源开发利用的现状与对策 总被引:1,自引:0,他引:1
随着社会的发展,人类已步入了信息时代,在这个时代科学技术进步与社会经济发展的速度愈来愈取决于对信息资源的开发利用程度.与物质、能源一样,信息已经成为国民经济和社会发展的第三大战略资源,谁善于开发利用它,谁就能在社会经济信息化的今天把握竞争的主动权,有效地促进社会、经济、科技的持续发展. 相似文献