排序方式： 共有39条查询结果，搜索用时 15 毫秒
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Masanori Yamada Satoshi Kitamura Hideya Matsukawa Tadashi Misono Noriko Kitani Yuhei Yamauchi 《Educational technology research and development : ETR & D》2014,62(5):529-553
In recent years, collaborative filtering, a recommendation algorithm that incorporates a user’s data such as interest, has received worldwide attention as an advanced learning support system. However, accurate recommendations along with a user’s interest cannot be ideal as an effective learning environment. This study aims to develop and evaluate an online English vocabulary learning system using collaborative filtering that allows learners to learn English vocabulary while expanding their interests. The online learning environment recommends English news articles using information obtained from other users with similar interests. The learner then studies these recommended articles as a method of learning English. The results of a two-month experiment that compared this system to an earlier collaborative filtering system called “GroupLens” reveal that learners who used the collaborative filtering system developed in this study read various news articles and had significantly higher scores on topic-specific vocabulary tests than did those who used the previous system. 相似文献
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Ferenc Torma Zoltan Gombos Marcell Fridvalszki Gergely Langmar Zsofia Tarcza Bela Merkely Hisashi Naito Noriko Ichinoseki-Sekine Masaki Takeda Zsolt Murlasits Peter Osvath Zsolt Radak 《运动与健康科学(英文)》2021,10(4):470
BackgroudBlood flow restriction (BFR) with low-intensity resistance training has been shown to result in hypertrophy of skeletal muscle. In this study, we tested the hypothesis that BFR during the rest periods between acute, high-intensity resistance exercise sessions (70% of 1 repetition maximum, 7 sets with 10 repetitions) enhances the effects of the resistance training.MethodsA total of 7 healthy young men performed squats, and between sets BFR was carried out on one leg while the other leg served as a control. Because BFR was applied during rest periods, even severe occlusion pressure (approximately 230 mmHg), which almost completely blocked blood flow, was well-tolerated by the participants. Five muscle-specific microRNAs were measured from the biopsy samples, which were taken 2 h after the acute training.ResultsDoppler data showed that the pattern of blood flow recovery changed significantly between the first and last BFR. microRNA-206 levels significantly decreased in the BFR leg compared to the control. The mRNA levels of RAC-β serine/threonine-protein kinase v22, nuclear respiratory factor 1, vascular endothelial growth factor, lupus Ku autoantigen protein p70 genes (p < 0.05), and paired box 7 (p < 0.01) increased in the BFR leg. The protein levels of paired box 7, nuclear respiratory factor 1, and peroxisome proliferator-activated receptor γ coactivator 1α did not differ between the BFR leg and the control leg.ConclusionBFR, during the rest periods of high-load resistance training, could lead to mRNA elevation of those proteins that regulate angiogenesis, mitochondrial biogenesis, and muscle hypertrophy and repair. However, BFR also can cause DNA damage, judging from the increase in mRNA levels of lupus Ku autoantigen protein p70. 相似文献
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李 颖乔晓东 杨兴兵Soichi Kubota Noriko Arakawa Yoshiko ShirokizawaSanho Lee Tae-sul Seo 《中国科技资源导刊 (中国信息导报)》2012,(6):81-85
为促进亚洲各国之间的科技信息资源共享和科研合作,在这些区域内,通过一站式服务获取相关信息至
关重要。3 年前,基于谅解备忘录（MOU）,中国科学技术信息研究所（ISTIC）、日本科学技术振兴机构（JST）及韩国
科学技术信息研究院（KISTI）建立了基于现有DOI 系统的长期合作机制。首先概要介绍分别由三机构运行管理的各自
国家的DOI 系统,以及三国之间的国际合作进展。然后,通过引入云服务平台的概念,提出未来的合作框架,以进一
步促进资源共享。 相似文献
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Noriko Hara 《The Information Society》2013,29(2):153-154
We examined the nature and content of 150 randomly selected pornographic images available in Usenet newsgroups on the Internet in April 1994. Using content analysis, we identified themes that appear most frequently and explored differences in the type of material posted by commercial and noncommercial users. Results suggest that commercial vendors are more likely to post explicit pornographic material in public access newsgroups to attract new customers to their private, pay-per-use bulletin board services. 相似文献
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Noriko Asato 《Public Library Quarterly》2013,32(4):286-306
This article examines public librarians' experiences with attempted censorship, including their dismay, anger, and disappointment with fellow librarians and their professional organizations, which those under attack found apathetic in safeguarding user rights and protecting their jobs as library professionals. Some of these librarians became the activists who campaigned for the creation of the American Library Association's (ALA) legal defense machinery, along with other primarily young progressive librarians, who pushed forward their own agenda. This study highlights these public librarians' struggles, which made the Freedom to Read Foundation (FTRF) and ALA leading professional organizations in championing intellectual freedom. The study focuses on cases that shaped ALA's policy that led to the establishment of a defense mechanism for librarians in the late 1960s and 1970s. It also examines the extent to which ALA upheld the organization's professional credo and its members' rights. 相似文献
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We have conducted a study to: (1) verify the exhaustiveness of pooling for the purpose of constructing a large-scale test collection, and (2) examine whether a difference in the number of pool documents can affect the relative evaluation of IR systems. We carried out the experiments using search topics, their relevance assessments, and the search results that were submitted for both the pre-test and test of the first NTCIR Workshop.Our results verified the efficiency and the effectiveness of the pooling method, the exhaustiveness of the relevance assessments, and the reliability of the evaluation using the test collection based on the pooling method. 相似文献