Publisher’s Note: “Finite element analysis of helical flows in human aortic arch: A novel index” [Biomicrofluidics 8, 024111 (2014)]     

Cheng-Hung Lee  Kuo-Sheng Liu  Guan-Heng Jhong  Shih-Jung Liu  Ming-Yi Hsu  Chao-Jan Wang  Kuo-Chun Hung 《Biomicrofluidics》2014,8(2)

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碎裂QRS波对急性心肌梗死患者的短期预后评估(英文)简   总被引：2，自引：1，他引：1  

Qin-hui SHENG  Chih-Chi HSU  Jian-ping LI  Tao HONG  Yong HUO 《Journal of Zhejiang University. Science. B》2014,15(1):67-74

This study is aimed to investigate the clinical significance and the short-term prognostic value of frag- mented QRS （fQRS） for patients with acute myocardial infarction （AMI）. Three hundred patients with AMI were tested with retrospective analysis on the patients＇ clinical information, hospitalized treatment, fQRS onset time, location of lesions, and other relevant data, in order to assess the relationship between the presence of fQRS and its prognosis. The rates of malignant cardiac arrhythmia, left ventricular systolic dysfunction （LVSD）, and mortality in the positive fQRS group were 13.6%, 29.2%, and 23.7%, respectively, with all showing a p value 〈0.05. For the ST segment elevation myocardial infarction （STEMI） subgroup, all the rates showed significant differences with a p value 〈0.01, while for the non-STEMI （NSTEMI） subgroup showed no significant differences. In patients with a positive fQRS, there were no differences in malignant cardiac arrhythmia between patients with and without percutaneous coronary in- tervention （PCI） （p〉0.05）. As for the LVSD and mortality, the p values between patients with and without PCI were 0.031 and 0.000, respectively, suggesting statistical significance. The results imply that AMI patients with positive fQRS especially for the patients with STEMI had higher rates of malignant cardiac arrhythmia, LVSD, and mortality than the non-fQRS group. Patients of AMI with positive fQRS, who underwent early revascularization, could lower the incidence of the cardiovascular event. In addition, the presence of fQRS could be used as an indication of early in- tervention treatment for patients.  相似文献   

A framework of cloud-based virtual phones for secure intelligent information management     

Jiun-Hung Ding  Roger Chien  Shih-Hao Hung  Yi-Lan Lin  Che-Yang Kuo  Ching-Hsien Hsu  Yeh-Ching Chung 《International Journal of Information Management》2014

As mobile networks and devices being rapidly innovated, many new Internet services and applications have been deployed. However, the current implementation faces security, management, and performance issues, which are critical to the use in business environments. Migrating sensitive information, management facilities, and intensive computation to security hardened virtualized environment in the cloud provides effective solutions. This paper proposes an innovative Internet service and business model to provide a secure and consolidated environment for enterprise mobile information management based on the infrastructure of cloud-based virtual phones (CVP). Our proposed solution enables the users to execute Android and web applications in the cloud and connect to other users of CVP with enhanced performance and protected privacy. The organization of CVP can be mixed with centralized control and distributed protocols, which emulates the behavior of human societies. This minimizes the need to handle sensitive data in mobile devices, eases the management of data, and reduces the overhead of mobile application deployment.  相似文献   

Understanding customer experiences in online blog environments     

Hsuan Yu Hsu  Hung-Tai TsouAuthor vitae 《International Journal of Information Management》2011,31(6):510-523

Blogs have recently become an influential medium and have demonstrated enormous marketing power. Consumers can freely conduct ongoing information searches through this new channel. However, the credibility of blogs plays an important role in creating opportunities for positive customer experiences that can shape consumers’ product/service purchase intentions and decisions. In light of this observation, this study proposes a theoretical framework that delineates the relationship among information credibility, customer experiences, and purchase intention in the blog environment. Data collected from 468 subjects in specific corporate blogs provide support for the proposed model using partial least squares (PLS). The results indicate that information credibility is critical for facilitating customer experiences, which, in turn, is necessary to enhance purchase intention. Additionally, greater involvement with blog significantly increases the effect of customer experiences on purchase intention. The detailed theoretical and managerial implications are presented.  相似文献   

Epistemic Beliefs,Online Search Strategies,and Behavioral Patterns While Exploring Socioscientific Issues     

Chung-Yuan Hsu  Meng-Jung Tsai  Huei-Tse Hou  Chin-Chung Tsai 《Journal of Science Education and Technology》2014,23(3):471-480

Online information searching tasks are usually implemented in a technology-enhanced science curriculum or merged in an inquiry-based science curriculum. The purpose of this study was to examine the role students’ different levels of scientific epistemic beliefs (SEBs) play in their online information searching strategies and behaviors. Based on the measurement of an SEB survey, 42 undergraduate and graduate students in Taiwan were recruited from a pool of 240 students and were divided into sophisticated and naïve SEB groups. The students’ self-perceived online searching strategies were evaluated by the Online Information Searching Strategies Inventory, and their search behaviors were recorded by screen-capture videos. A sequential analysis was further used to analyze the students’ searching behavioral patterns. The results showed that those students with more sophisticated SEBs tended to employ more advanced online searching strategies and to demonstrate a more metacognitive searching pattern.  相似文献   

CONTENT ANALYSIS OF 1998–2012 EMPIRICAL STUDIES IN SCIENCE READING USING A SELF-REGULATED LEARNING LENS     

Hsu  Ying-Shao  Yen  Miao-Hsuan  Chang  Wen-Hua  Wang  Chia-Yu  Chen  Sufen 《International Journal of Science and Mathematics Education》2014,12(1):1-23

In this study, we investigated the impact of teaming school-based instructional coaches with science or mathematics middle school teachers to build a community of practice around inquiry instruction. This professional development model began with a 2-week summer institute and continued with four follow-up sessions during the academic school year for the teacher and instructional coach participants. The teachers’ participation in this professional development program with (1) content instruction through inquiry lessons, (2) practice teaching to middle school students, and (3) coach-led reflection improved their understanding of inquiry-based practices and the quality of their classroom inquiry implementation. Professional development experiences that prepare teachers and coaches simultaneously in inquiry and content may help build a shared language for reform and accelerate inquiry instructional changes.  相似文献   

Characterization of microfluidic mixing and reaction in microchannels via analysis of cross-sectional patterns     

Wei-Feng Fang  Miao-Hsing Hsu  Yu-Tzu Chen    Jing-Tang Yang 《Biomicrofluidics》2011,5(1)

For the diagnosis of biochemical reactions, the investigation of microflow behavior, and the confirmation of simulation results in microfluidics, experimentally quantitative measurements are indispensable. To characterize the mixing and reaction of fluids in microchannel devices, we propose a mixing quality index (M_qi) to quantify the cross-sectional patterns (also called mixing patterns) of fluids, captured with a confocal-fluorescence microscope (CFM). The operating parameters of the CFM for quantification were carefully tested. We analyzed mixing patterns, flow advection, and mass exchange of fluids in the devices with overlapping channels of two kinds. The mixing length of the two devices derived from the analysis of M_qi is demonstrated to be more precise than that estimated with a commonly applied method of blending dye liquors. By means of fluorescence resonance-energy transfer (FRET), we monitored the hybridization of two complementary oligonucleotides (a FRET pair) in the devices. The captured patterns reveal that hybridization is a progressive process along the downstream channel. The FRET reaction and the hybridization period were characterized through quantification of the reaction patterns. This analytical approach is a promising diagnostic tool that is applicable to the real-time analysis of biochemical and chemical reactions such as polymerase chain reaction (PCR), catalytic, or synthetic processes in microfluidic devices.  相似文献   

The Development and Validation of the Physical Self-concept Scale for Older Adults     

Ya-Wen Hsu  Frank Jing-Horng Lu 《Educational gerontology》2013,39(7):501-513

Physical self-concept plays a central role in older adults’ physical health, mental health and psychological well-being; however, little attention has been paid to the underlying dimensions of physical self-concept in the elderly. The purpose of this study was to develop and validate a new measurement for older adults. First, a qualitative study (Study 1) was conducted that included semistructured interviews and a focus group discussion. The second study established an initial instrument. Through item pool generation, content validation assessment, factor analysis, and item analysis (n = 187), the Physical Self-Concept Scale for Older Adults (PSCS-O) was produced containing 18 items and six dimensions. Finally, in the third study (n = 233), the PSCS-O showed adequate factorial stability and the initial certerion validity. The PSCS-O were able to explain 49.2% of the variance in older adults’ well-being. In addition, Ability to Live Independently, which was introduced as a new factor by the PSCS-O, was the strongest predictor of the older adults’ overall subjective well-being. In conclusion, the preliminary results from this study demonstrated that this new instrument, the PSCS-O, has sound psychometric properties. The PSCS-O may be a suitable and useful instrument in the study of physical self-concept in older adults in the future.  相似文献   

Testing a screening procedure in the treatments for communication apprehension     

Brian L. Heuett  Chia‐Fang Hsu  Joe Ayres 《Communication Research Reports》2013,30(3):219-229

This study tested whether a screening procedure was effective in the treatments for communication apprehension (CA). Accordingly, individuals who were identified as having cognitive, affective, and behavioral source of CA were exposed to Visualization (cognitive). Systematic Desensitization (affective). Skills Training (behavioral), and Multiple treatment (combination of the three). Results indicated that exposing people to the matching intervention was slightly more effective in reducing CA than exposing them to other treatments.  相似文献   

Science Teachers’ Proficiency Levels and Patterns of TPACK in a Practical Context     

Yi-Fen Yeh  Tzu-Chiang Lin  Ying-Shao Hsu  Hisn-Kai Wu  Fu-Kwun Hwang 《Journal of Science Education and Technology》2015,24(1):78-90

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