Spinodal decomposition: a new approach to hierarchically porous inorganic materials for energy storage     

Seongseop Kim  Jinwoo Lee 《国家科学评论(英文版)》2020,7(11):1635

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Three dimensional musculoskeletal modelling of the seated biceps curl resistance training exercise     

Nolte K  Krüger PE  Els PS 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(2):146-160

The aim of this study was to evaluate the benefits and limitations of using three dimensional (3D) musculoskeletal modelling (LifeModeler) in assessing the safety and efficacy of exercising on a seated biceps curl resistance training machine. Three anthropometric cases were studied, representing a 5th percentile female, 50th percentile and 95th percentile male. Results indicated that the LifeModeler default model was not adequate to solve the forward dynamics simulations. Therefore adjustments had to be made to the default model to successfully complete the forward dynamics simulations. The software was able to sufficiently highlight the shortcomings of the biceps curl machine's engineered adjustability in relation to the anthropometric dimensions of the studied cases, as the 5th percentile female could not be accommodated suitably on the machine. High lumbar spine anterior/posterior shear forces for all anthropometric cases and maximum muscle tensions for the female and 50th percentile male indicate that the seated biceps curl exercise may pose risks for injuries. To conclude, it appears that 3D musculoskeletal modelling can be used to evaluate resistance training equipment such as the seated biceps curl machine. However the limitations as indicated by this study must be taken into consideration, especially when using the default LifeModeler model.  相似文献   

Online health information search and evaluation: observations and semi-structured interviews with college students and maternal health experts     

Kim H  Park SY  Bozeman I 《Health information and libraries journal》2011,28(3):188-199

Background: While the Internet is a popular source of health information, health seekers’ inadequate skills to locate and discern quality information pose a potential threat to their healthcare decision‐making. Objectives: We aimed to examine health information search and appraisal behaviours among young, heavy users of the Internet. Methods: In study 1, we observed and interviewed 11 college students about their search strategies and evaluation of websites. In study 2, three health experts evaluated two websites selected as the best information sources in study 1. Results: Familiarity with health websites and confidence in search strategies were major factors affecting search and evaluation behaviours. Website quality was mostly judged by aesthetics and peripheral cues of source credibility and message credibility. In contrast to users’ favourable website evaluation, the experts judged the websites to be inappropriate and untrustworthy. Conclusion: Our results highlight a critical need to provide young health seekers with resources and training that are specifically geared toward health information search and appraisal. The role of health seekers’ knowledge and involvement with the health issue in search effort and success warrants future research.  相似文献   

Essay Reviews     

Kim Tolley 《History of education quarterly》2006,46(2):274-288

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Emerging themes of student satisfaction in a traditional course and a blended distance course     

Debra Parkinson  William Greene  Younghee Kim  Joan Marioni 《TechTrends》2003,47(4):22-28

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Web&Wild     

Stephanie Allen  Clif Mims  Stephanie Roberts  Beaumie Kim  Jeeheon Ryu 《TechTrends》2004,48(2):75

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Re‐membering Vietnam: War,Trauma, and “Scarring Over” After “The Wall”     

Kim Servart Theriault 《Journal of American culture (Malden, Mass. : 2003)》2003,26(4):421-431

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Individual Differences in Social Media Use for Information Seeking     

Kyung-Sun Kim  Sei-Ching Joanna Sin  Tien-I Tsai 《The Journal of Academic Librarianship》2014

This study investigated which social media platforms are used as information sources, and for what purposes. It also examined how user characteristics are related to the use of different platforms. A Web-based survey was used to collect data from undergraduate students. Responses from more than 800 students showed that most of the social media platforms are used as information sources, where wikis, user reviews, and media-sharing sites emerged as the top platforms. The purpose of use varied across platforms. T-test and ANOVA results also revealed individual differences. Significant differences in gender, class level, academic discipline, and Big Five personality traits were found in the frequency of information seeking using different platforms and also in the purpose of use. Study findings have implications for information literacy (IL) education and information services. Because many students are actively using social media platforms for a variety of information-seeking purposes, it is suggested that IL programs embrace social media as potential information sources and offer effective strategies for using and evaluating these increasingly popular social media sources.  相似文献   

Food policy in cyberspace: A webometric analysis of national food clusters in South Korea     

Jang Hyun Kim  Han Woo Park 《Government Information Quarterly》2014

This study analyzes the Triple Helix (TH) structure of an online national food cluster. Although the university–industry–government (UIG) approach provides useful insights into innovation and its diffusion, few studies have examined how such systems are organized and operate in cyberspace. Foodpolis is an export-oriented national food cluster targeting markets in Northeast Asia, including China and Japan. Foodpolis encompasses national food industry complexes and government-led agricultural and food R&D institutes whose goal is to advance food-processing technologies. This study employs the webometric analysis method to reveal the communication pattern of interactions between participating actors. The study evaluates web mentions and hyperlink networks to investigate links to and from the website of Foodpolis (Foodpolis.kr) by using the NodeXL software package. The results for links to and from Foodpolis do not indicate sufficient interactions between UIG websites and Twitter accounts. Instead, the website and Twitter account of Foodpolis were linked to its own online café, websites of individuals, and government websites. The results suggest that UIG actors should employ online communication channels in a more proactive manner for diffusing innovative initiatives such as Foodpolis.  相似文献   

Virtual Tutee System: a potential tool for enhancing academic reading engagement     

SeungWon Park  ChanMin Kim 《Educational technology research and development : ETR & D》2014,62(1):71-97

This article reports on evaluation studies of the Virtual Tutee System (VTS) designed to enhance students’ engagement in academic reading. The VTS is a web-based peer-tutoring environment in which students teach a virtual tutee about the content in course readings that students have been assigned to learn. With the VTS, students interact with virtual tutees by providing lecture notes and answering questions from these tutees. The initial prototype of the VTS was implemented and evaluated through two field trials in a college classroom. The purposes of the two field trials were to assess the efficacy of the VTS and improve its design. In the first field trial, students successfully completed the VTS and showed a deeper engagement in reading with the use of the VTS, but reported several design issues. Based on findings from the first trial, two modifications in the VTS design were made. In the second field trial, students used the revised VTS. They expressed enjoyment in teaching their virtual tutees and appreciated the value of the VTS. They also demonstrated a significant increase in their reading strategy use. The article concludes with design considerations for the VTS and implications for future research and development.  相似文献