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‘Flipped MIS’. The Mobile Flipped Classroom Approach Shown In The Example Of MIS Courses
Birgit Oberer 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.3
Education paradigms are shifting to include more online learning, blended and hybrid learning, and collaborative models. The flipped classroom is a pedagogical model in which typical lecture and homework sections of a course are reversed, offering the benefit that it rearranges face-to-face instructions, attempting to create a more efficient and enriched use of class time. In this study it was analyzed if the flipped classroom model, combined with mobile learning technologies, could stimulate students’ participation and engagement in MIS courses. The results of the study revealed that the combination of flipped classroom model and mobile technologies have a direct impact on students’ perception and learning outcomes, focusing on a five point course outcome scale.
Crystallization of Precursors to Forsterite and Chromium-Doped Forsterite
Park, Dong Gon Martin, M. Hogan E. Ober, Christopher K. Burlitch, James M. Cavin, O. Burl Porter, Wallace D. Hubbard, Camden R. 숙명여자대학교 자연과학연구소 1994 자연과학논문집 Vol.- No.5
The pyrolysis and crystallization of poly(mathacrylate) precursors and xerogels of forsterite and chromiumdoped forsterite were studied by in situ high-temperature, dynamic X-ray diffraction and thermal analysis. For both types of precursor, crystallization of forsterite occurred at lower temperature when doped with chromium. Also, exotherms above 700℃ occurred 50℃ lower when chromium was present. When residual carbon in the xerogels was more than ∼1%, an unidentified crystalline intermediate phase formed at ∼800℃. Conversion of the intermediate phase to forsterite was faster than amorphous material. Thus, full crystallinity was attained at a lower temperature when the xerogels had some residual carbon.
Lessons Learned From GWAS of Asthma
Kim, Kyung Won,Ober, Carole The Korean Academy of Asthma, Allergy and Clinical 2019 Allergy, Asthma & Immunology Research Vol.11 No.2
<P>Asthma is a common complex disease of the airways. Genome-wide association studies (GWASs) of asthma have identified many risk alleles and loci that have been replicated in worldwide populations. Although the risk alleles identified by GWAS have small effects and explain only a small portion of prevalence, the discovery of asthma loci can provide an understanding of its genetic architecture and the molecular pathways involved in disease pathogenesis. These discoveries can translate into advances in clinical care by identifying therapeutic targets, preventive strategies and ultimately approaches for personalized medicine. In this review, we summarize results from GWAS of asthma from the past 10 years and the insights gleaned from these discoveries.</P>
An electrochemical glucose sensor from an organically modified nanocomposite of viologen and TiO2.
Kim, Yuna,Malliaras, George G,Ober, Christopher K,Kim, Eunkyoung American Scientific Publishers 2010 Journal of nanoscience and nanotechnology Vol.10 No.10
<P>An organically modified TiO2 nanocomposite was explored for glucose detection. Bis-Butyl viologen (BBV) was mixed with TiO2 nanoparticles to generate highly dispersed nanocomposite solution, which provided organically modified nanocomposite film of TiO2 (BBV-TiO2). A transistor type sensor was fabricated using the BBV-TiO2 film and platinum gate electrode. The BBV-TiO2 nanocomposite sensor showed higher sensitivity to glucose sensing in low concentration region compared to that of TiO2 sensor. This result was ascribed to facilitated electron transport by the adsorbed viologen molecules on TiO2 nanoparticles, where viologen molecules act as an electron transfer mediator between enzyme and TiO2.</P>
Crystallization of Precursors to Forsterite and Chromium-Doped Forsterite
Park, Dong Gon,Martin, M. Hogan E.,Ober, Christopher K.,Burlitch, James M.,Cavin, O. Burl,Porter, Wallace D.,Hubbard, Camden R. 숙명여자대학교 자연과학연구소 1994 자연과학논문집 Vol.- No.5
The pyrolysis and crystallization of poly(mathacrylate) precursors and xerogels of forsterite and chromiumdoped forsterite were studied by in situ high-temperature, dynamic X-ray diffraction and thermal analysis. For both types of precursor, crystallization of forsterite occurred at lower temperature when doped with chromium. Also, exotherms above 700℃ occurred 50℃ lower when chromium was present. When residual carbon in the xerogels was more than ∼1%, an unidentified crystalline intermediate phase formed at ∼800℃. Conversion of the intermediate phase to forsterite was faster than amorphous material. Thus, full crystallinity was attained at a lower temperature when the xerogels had some residual carbon.
The Solvent Problem: Redissolution of Macromolecules in Solution-Processed Organic Electronics
Carol Newby,이진균,Christopher K. Ober 한국고분자학회 2013 Macromolecular Research Vol.21 No.3
After deposition, solution processed macromolecules are susceptible to redissolution by similar solvents. This “solvent problem” puts undesirable restrictions on the subsequent processing of organic devices; particularly when forming multiple layers or using organic patterning materials. In this review we survey the creative approaches seeking to resolve the solvent problem. We conclude that two of these approaches show promise as comprehensive solutions; use of orthogonal solvents such as hydofluoroethers, and, use of cross-linking additives. Furthering development of these or other approaches provides the community with plentiful opportunity for valuable future work.
Influence of Electroacupuncture on the Soft Tissue Healing Process
Valentin Parmen,Marian Taulescu,Ciprian Ober,Cosmin Pestean,Liviu Oana 사단법인약침학회 2014 Journal of Acupuncture & Meridian Studies Vol.7 No.5
The aim of this study was to determine the effect of bipolar electroacupuncture (EA) on a soft tissue defect in rabbits. Ten clinically healthy New Zealand white rabbits were divided into two groups: the control group (Group C, n = 5) and the experimental (EA) group (Group T, n = 5). During neuroleptanalgesia, defects of soft tissue (skin and mus- cle) were made at the dorsum site on the rabbits in both groups, and those defects were stimulated using EA. The biopsy samples were collected on Day 2, Day 4, and Day 6, pre- pared for histology, and examined microscopically. On the 2 nd day, in Group C, the inflam- matory degree was higher than it was in Group T; on subsequent days, low or identical degrees of inflammation were observed in both groups. Proliferative fibrous activity was increased on Day 4 for Group T and identical for both groups on Day 6. The dynamics of the epidermal thickness were characterized by a high rate on Day 2, Day 4, and Day 6 for Group T. EA facilitates a low tissue mechanical stress and has a positive effect on the healing of muscular defects. EA enhances the healing process, with no side effects.