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Eating disorders, disordered eating, and body dissatisfaction prevalence rates are on the rise among adolescent females. The present study examined the potential use of a commonly used social–emotional instrument, the Behavior Assessment System for Children‐Second Edition (BASC‐2), for detecting the presence of possible eating disorders in adolescent females in a school setting. Participants included 65 female adolescents aged 13 to 17 years from Midwestern public middle and high schools. The Eating Disorder Inventory‐Third Edition was used to determine eating disorder risk and level of body dissatisfaction. Those adolescents at risk for developing an eating disorder differed significantly on 12 of the 16 BASC‐2 scales, whereas four of these scales were also in the clinically significant range according to the BASC‐2 normative sample. A common profile of a female adolescent at risk for developing an eating disorder was explored. Implications of the findings and recommendations for future research are discussed. 相似文献
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The purpose of this study is to investigate whether or not the use of video can have a positive effect on satisfaction, empathy, and learning achievement in problem-based instruction among Korean college students majoring in education. To achieve this purpose, this study compared the findings from three dependent variables in problem-based video instruction with those in problem-based text instruction. The results indicate that there were statistically significant differences in learner satisfaction, empathy, and learning achievement between students who received problem-based video instruction and students who received problem-based text instruction. Consequently, the findings of this study imply that video can be an effective medium to present authentic situations in order to enhance student satisfaction, empathy, and learning achievement in problem-based instruction. This study might be significant in expanding the potential use of problem-based video instruction and in establishing an example of problem-based video instruction for Korean college students majoring in education. 相似文献
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新加坡于2014年推行了新的H2华文与文学课程。为了考察新课标实施的状况以及实施可能带来的变化,教育部课程规划与发展司委托新加坡华文教研中心进行一项为期三年的评价性研究。研究主要分为学习评估与教学评估两方面,前者主要关注学生华语文状况与学习前后的语言能力表现;后者关注华语课堂的教学实践、教师对新课程的期望及调适等。本研究将对高中新课标的实施,从教师、学生、课堂教学以及教学效果各个方面进行全方位的扫描,并为教育决策者提供较为真实、全面的高中H2华文与文学教与学的状况信息。 相似文献
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Hee‐Yeon Cho 《Inter-Asia Cultural Studies》2013,14(1):119-137
Abstract This essay tries to trace the life trajectory of an intellectual, in terms of his intellectual and social practices, who wants to live through modern Korean history via progressive activism. The trajectory can be divided into three different stages: the first comes with the military developmental dictatorship in 1961, ending in 1987. The next is during the democratic transition since the Democratic Uprising in June 1987, which put the Korean society onto the road of democratization. The last one should be the so‐called ‘post‐democratization’ period in which we now find ourselves. This is more a story than an analysis of the progressive intellectual movement in the form of the personal recollections. The story is, however, not just about an individual but it is a window giving a glimpse into the larger trajectory that many progressive intellectuals have gone through, and that directly reflects the huge changes in contemporary history of South Korea, such as the interaction between the domination and social movements. 相似文献
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A non-positional (or suspension) cell microarray was developed using shape-coded SU-8 photoresist microboards for potential application in multiplex and high-throughput cell-based assays. A conventional photolithography process on glass slides produced various shapes of SU-8 micropatterns that had a lateral dimension of 200 μm and a thickness of 40 μm. The resultant micropatterns were detached from the slides by sonication and named "microboards" due to the fact that had a much larger lateral dimension than thickness. The surfaces of the SU-8 microboards were modified with collagen to promote cell adhesion, and it was confirmed that collagen-coated SU-8 microboards supported cell adhesion and proliferation. Seeding of cells into poly(ethylene glycol)(PEG) hydrogel-coated well plates containing collagen-modified microboards resulted in selective cell adhesion onto the microboards due to the non-adhesiveness of PEG hydrogel toward cells, thereby creating non-positional arrays of microboards carrying cells. Finally, two different cell types (fibroblasts and HeLa cells) were separately cultured on different shapes of microboards and subsequently mixed together to create a non-positional cell microarray consisting of multiple cell types where each cell could be easily identified by the shape of the microboard to which they had adhered. Because numerous unique shapes of microboards can be fabricated using this method by simply changing the photomask designs, high throughput and multiplex cell-based assays would be easily achieved with this system in the future. 相似文献
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Jen-Yung Chang Shuo Wang Jeffrey S. Allen Seong Hyuk Lee Suk Tai Chang Young-Ki Choi Craig Friedrich Chang Kyoung Choi 《Biomicrofluidics》2014,8(4)
An electro-osmosis (EOS) diode pumping platform capable of culturing cells in fluidic cellular micro-environments particularly at low volume flow rates has been developed. Diode pumps have been shown to be a viable alternative to mechanically driven pumps. Typically electrokinetic micro-pumps were limited to low-concentration solutions (≤10 mM). In our approach, surface mount diodes were embedded along the sidewalls of a microchannel to rectify externally applied alternating current into pulsed direct current power across the diodes in order to generate EOS flows. This approach has for the first time generated flows at ultra-low flow rates (from 2.0 nl/s to 12.3 nl/s) in aqueous solutions with concentrations greater than 100 mM. The range of flow was generated by changing the electric field strength applied to the diodes from 0.5 Vpp/cm to 10 Vpp/cm. Embedding an additional diode on the upper surface of the enclosed microchannel increased flow rates further. We characterized the diode pump-driven fluidics in terms of intensities and frequencies of electric inputs, pH values of solutions, and solution types. As part of this study, we found that the growth of A549 human lung cancer cells was positively affected in the microfluidic diode pumping system. Though the chemical reaction compromised the fluidic control overtime, the system could be maintained fully functional over a long time if the solution was changed every hour. In conclusion, the advantage of miniature size and ability to accurately control fluids at ultra-low volume flow rates can make this diode pumping system attractive to lab-on-a-chip applications and biomedical engineering in vitro studies. 相似文献
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Sungyoon Jang Byeongjik Nam Daewoo Park Hyoyun Kim Chan Hee Lee Jae Eun Yu 《Journal of Cultural Heritage》2013,14(3):229-237
The ceramic artefacts, excavated from ancient shipwrecks, are generally saturated with soluble salts, mainly NaCl, within the porous structure of ceramics. The salinity contents typically exhibit ionic and osmotic pressures to the ceramic microstructures, thus causing significant damages to the integrity of ceramic artefacts. While the utilisation of aqueous soaking methods is commonly accepted for effective desalination processes of ceramics, the relationships between the structural characteristics of ceramics and the desalination efficiency have not been demonstrated. In this study, we examined the desalination processes of various ceramics excavated from the Taean shipwrecks in South Korea to identify major controlling factors for the desalination processes. Our results indicated that the physical properties of ceramics including the water absorption and the pore size distribution greatly influence on the desalination process time and efficiency. It is also found that the surface condition of ceramic samples such as microstructural cracks on the glaze layer is a crucial component of the desalination characteristics. Nevertheless, the small residue of salts such as NaCl crystals were found in the microstructures of some ceramics after prolonged desalination periods. Therefore, it is important to control the humidity and temperature in the conservation environment for desalinated ceramic artefacts even after desalination. 相似文献