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그림책을 활용한 반편견 교육활동이 유아의 장애 수용 인식 및 태도에 미치는 영향
원계선,최일선 국립특수교육원 2004 특수교육연구 Vol.11 No.2
본 연구의 목적은 그림책을 활용한 반편견 교육프로그램이 만 5세 유아의 장애에 대한 인식 및 태도에 미치는 효과를 밝히는 데 있다. 본 연구의 대상은 이천 시 소재 유치원의 만 5세 일반 유아 50명으로, 실험 집단 유아 25명에게는 그림책을 활용한 반편견 교육활동을, 통제집단 유아 25명에게는 정규 유아교육활동을 시행하였다. 연구결과, 두 집단 유아들 간에 장애인에 대한 상호작용의도, 인식 및 수용태도에 있어서 유의한 차이가 있는 것으로 나타났다. 이는 장애와 관련된 그림책을 선정하여 반편견 교육활동을 시행한 것이 일반 유아들의 장애에 대한 인식과 태도에 긍정적인 영향을 끼친다는 점을 시사한다. This study investigates the effects of the anti-bias program using literature on children's intentions, recognitions and attitudes toward children with disabilities. In this study, the subjects were 50 children without disabilities 5 years old kindergarten children. They were placed to an experimental or a control group, with 25 children in each other. While normal regular program was provided for the control group, the anti-bias program through literature was applied to the experimental group for 4 weeks. Significant differences were showed between the pre and post-test scores in intentions, recognitions and attitudes toward the disabled. This results indicates that the anti-bias program using literature affects positive influences to children's intentions, recognitions and attitudes toward children with disabilities.
金奎原 慶北大學校 1992 論文集 Vol.52 No.-
This paper addresses a new approach to the study of educated unemployment problem. After reviewing the extant literature on this subject area, it provides a distinction for the related concepts and further suggests that there should be five different aspects of this educated unemployment phenomenon. The author maintains that the conventional explanations begin by assuming a natural balance of power distribution and end up examining a market structure as given. Within this narrow scheme, it is no wonder to regard any failure to get employment opportunites from the labor market as an individual problem. The author also states that radical perspectives in general have a tendency to over-react to conservative standpoints. In going too far in the opposite direction, the former have substituted impersonal non-market forces, such as capitalism or world-system, for the latter's impersonal market forces. Finally, he argues that a balanced version should include serious attention to the ways in which the domestic political-economic powers have responded to changes in the international division of labor. The role of the state within a develop-ing country, in general, and its specific policies in the vortex of class conflicts, in particular, should be examined by a historical-structural analysis, as for fruitful research in the future.
강계원,김대연,이영훈,강봉석,박정현,최병호 금오공과대학교 산업기술개발연구원 2000 産業技術開發硏究 Vol.16 No.-
AC powder electroluminescence(EL) device consists of seven layers : PET substrate, transparent electrode, phosphor layer, dielectric layer, two layer metal electrodes and protective layer. Etch layer needs to control to improve electrical and optical properties. Both phosphor and dielectric layer among them is more important to increase its properties. For long-time reliability, proper choices of passivation and sealing material are essential. In this paper, influence of phosphor and dielectric layer thickness on EL performance is studied. Type of cellulos is selected as a sealing material to avoid moisture. To add two type of plasticizer to resin improves flexibility and passivation of EL devices. Through this experiments, technologies of fabrication low-cost thick film EL device can be established.
이계행,원영두 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.1
This study was designed to investigate the effects of long-term training on the lipid(triglyceride, cholesterol) and lipoprotein(HDL-cholesterol).The subjects consisted of 14junior female athletes(exercise career, three month 1 A group) and 14 athletes(exercise career fifteen month ; B group) and 14 junior school girls as control group(C group) who all were about thirteen years old, Both athlete groups(A,B group) were continuous to participate in six month training and their blood samples were collected at pre mid(after three month) and post(after six month). The control subjects donated their blood at pre and post(after six month). The collected blood were analyzed for the triglyceride, cholesterol, High density lipopro -tein cholesterol and HDL-C/TC ratio. The result through the statistical analysis of this data were summarized as follows The pre-levels of triglyceride and total cholesterol in Athlete group, especially Bgroup were lower than those in Non-athlete group(p<.01). level and HDL C/TC ratio were highest in B group among three group(p<.05). HDL-C level and HDL-C/TC ratio in both athlete group, especially A group were significantly decreased after three and six month(p<.01) while in control group all item were not changed. The result indicated that Triglyceride cholesterol in pre-adolescent girl can be significantly changed by three month training and the change of need more long term training.
경피제제로서 수종의 플루비프로펜 Vehicle과 O/W 마이크로에멀젼의 평가
이계원,지웅길 충남대학교 약학대학 의약품개발연구소 1998 藥學論文集 Vol.14 No.-
In order to reduce systemic side effects following administration, flurbiprofen was formulated as O/W microemulsion consisting of the surfactant, oil phase and aqueous phase. Particle size distribution, apparent viscosity, solubility and skin permeation of flurbiprofen in various vehicles and microemulsion were evaluated. The domain of O/W microemulsion's phase diagram had difference between oil types and the area of O/W microemulsion was wide distributed by adding to PG and cosurfactant than that of water alone. As increasing 10, 15 and 20% of Brij 97 content and 1, 2.5, 5% of oil content, the solubility of flurbiprofen in O/W microemulsions and various vehicles was 400~1,000 and 10~500 times higher than that of control. Also apparent viscosity of soybean oil microemulsions was higher than that of IPM microemulsions and that of vehicle were increased as increasing vehicle content. Since skin permeation of flurbprofen decreased as increasing viscosity, in each vehicle, it was not affected 2% β-CD and decreased as increasing PG content and to 2, 5 and 10% of HP-β-CD. In O/W microemulsion, 5% soybean oil, 20% Brij 97 and 75% water(A-1) with high viscosity showed low skin penetration.
정종헌,원휘준,최왕규,김계남,이성호,오원진 한국공업화학회 2003 응용화학 Vol.7 No.1
Liquid wastes containing uranium ions in high concentration of chemical salts havebeen treated by electrosorption on a activated carbon fibers(ACFs) electrode. Effectiveuranium (VI) removal is accomplished when the potential is -0.5V(vs. Ag/AgCl) ormore negative. For a feed concentration of 100mg/1, the concentration of U(VI) in thecell effluent is reduced to less than 1mg/1, and electrosorption capacity over 500mg/uranium/gACF is reached. The adsorbed uranium can be desorbed up to 99%for 20h by passing a 1.9N NaCl solution at pH 3 through the cell and applying a potential of +1.2V. The amount of desorbed uranium increased as the solution pHwas lowered and the applied potential increased.
과산화수소의 농도와 적용시간이 상아질의 깊이에 따라 레진 수복물의 미세인장결합강도에 미치는 영향
손정룡,이계영,강유미,오영택,이광원,김태균 대한치과보존학회 2009 Restorative Dentistry & Endodontics Vol.34 No.5
본 연구의 목적은 심부 상아질과 치수실 상아질에 H₂O₂를 각기 다른 적용시간과 농도로 적용하였을 때, 레진수복물과의 미세인장결합강도에 미치는 영향을 평가하는 것이다. 준비된 각각의 치아에 전형적인 근관와동을 형성하고 다음과 같이 무작위로 1개의 대조군과, 4개의 실험군으로 나누었다: 1군, 전처리를 시행하지 않았다; 2군, 20% H₂O₂를 20분, 10분, 5분간 적용하였다; 3군, 10% 를 20분, 10분, 5분간 적용하였다; 4군 5% H₂O₂를 20분, 10분, 5분간 적용하였다; 5군, 2.5% H₂O₂를 20분, 10분, 5분간 적용하였다. 위와 같이 처리한 후 와동 내를 Superbond C&B(Sunmedical, Co., Shiga, Japan)로 충전하였다. 각 치아는 증류수에 24시간 저장한 뒤 심부 상아질과 치수실 상아질로 잘라 미세인장결합강도 시험을 시행하였다. 각 군에서 측정된 미세인장결합강도를 3-way ANOVA와 Tukey post hoc test로 통계 처리하였다(p < 0.05). 실험 결과 모든 군에서 심부 상아질(D1)의 미세인장 결합강도가 치수실 상아질(D2)보다 높게 나타났다. 평균 결합강도는 H₂O₂의 농도와 적용 시간이 증가할수록 감소하였다. 통계분석에서 상아질의 깊이, H₂O₂농도와 적용 시간이라는 세 가지 변수간의 교호작용 효과는 없으나(p > 0.05). 상아질의 깊이와 H₂O₂농도 사이, H₂O₂농도와 적용 시간 사이에서는 교호작용 효과가 있었다(p < 0.05). SEM 관찰에서는 H₂O₂의 농도가 증가할수록 상아세관이 좀 더 개방된 양상을 보였다. The purpose of this study was to examine the effect of hydrogen peroxide at different application time and concentrations on the microtensile bond strength of resin restorations to the deep and the pulp chamber dentin. A conventional endodontic access cavity was prepared in each tooth, and then the teeth were randomly divided into 1 control group and 4 experimental groups as follows: Group 1, non treated; Group 2, with 20% Hydrogen peroxide (H₂O₂); Group 3, with 10% H₂O₂; Group 4, with 5% H₂O₂; Group 5, with 2.5% H₂O₂; the teeth of all groups except group 1 were treated for 20, 10, and 5min. The treated teeth were filled using a Superbond C&B (Sun medical Co., Shiga, Japan). Thereafter, the specimens were stored in distilled water at for 24-hours and then sectioned into the deep and the chamber dentin. The microtensile bond strength values of each group were analyzed by 3-way ANOVA and Tukey post hoc test(p < 0.05). In this study, the microtensile bond strength of the deep dentin (D1) was significantly greater than that of the pulp chamber dentin (D2) in the all groups tested. The average of microtensile bond strength was decreased as the concentration and the application time of H₂O₂ were increased. Analysis showed significant correlation effect not only between the depth of the dentin and the concentration of H₂O₂ but also between the concentration of H₂O₂ and the application time(p < 0.05), while no significant difference existed among these three variables(p > 0.05). The higher H₂O₂ concentration, the more opened dentinal tubules under a scanning electron microscope(SEM) examination.
Trichoderma sp. CNU 301가 생산하는 단백질 분해효소에 관한 연구
주우홍,이계숙,윤차원,이연,이인 昌原大學校 基礎科學硏究所 1995 基礎科學硏究所論文集 Vol.7 No.-
The mold which could grow at alkaline pH and thermophilic condition and produced an extracellular proteolytic enzyme was identified as Trichoderma sp.. Trichoderma sp. CNU 301 exhibited the maximum production of proteolytic enzyme at 50℃ in the medium composed of arabinose 1.5%, peptone 1.5% and FeSO₄0.2% (pH 9.0). The partial purified protease by precipitation with ammonium sulfate was most stable at pH 10 and at 60℃. The Trichoderma sp. CNU 301 produced an alkaline and thermostable protease.
최민호,이계복,조규원,박진영,김경수,송정석,한종현 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1
The purpose of this study is to measure the changes of regional cerebral blood flow (rCBF) and blood pressure (BP) of Cortex Acanthopanacis in rats, and to determine the effect of Cortex Acanthopanacis on phenylephrine (PE) induced contraction of isolated rat thoracic aorts. The measurement was continually monitored by laser-doppler flowmeter (Transonic Instrument, USA) and pressure transducer (Grass, USA) in anesthetized adult Sprague-Dawley rats through the data acquisition system composed of MacLab and Macintosh computer. Contractile force was measured with force displacement transducer under 1.5 g loading tension. The result of this experiment was as following; 1. Cortex Acanthopanacis did not effect the changes of rCBF and blood pressure significantly. 2. Contractions evoked by phenylephrine were decreased significantly by Cortex Acanthopanacis 3. L-NNA, ODQ, atropine and indomethacin significantly altered the relaxation of Cortex Acanthopanacis. 4. Propranolol did not change the relaxation of Cortex Acanthopanacis. These results indicate that Cortex Acanthopanacis did not change the rCBF and BP, but Cortex Acanthopanacis can relax PE induced contraction of isolated rat thoracic aorta and that this increasing contraction related to endothelium and various mechanism.