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      • What are the Characteristics and Qualities of Secondary Physical Education Teachers that Contribute to the Positive Changes in Students` Character?

        ( Eui Chang Choi ),( Soon Jung Choi ) 한국체육학회 2015 국제스포츠과학 학술대회 Vol.2015 No.1

        Purpose: The purpose of this study was to examine what characteristics and qualities of a teacher bring out positive changes in students. In order to this, researcher investigated positive changes of students and PE teacher`s characteristics and qualities that promote students` changes. Method: This study used qualitative complex case study. Participants were 5 PE teachers who participate in community focusing on students` character development, and their 10 students. Non-participant observation and in-depth interview were used. In addition, open questionnaire was administered with 200 students. Collected data were analyzed using inductive thematic analysis. Triangulation, member checks, and peer debriefing were conducted to enhance the trustworthiness of this study. Result: First, character of students have changed in various way. Students internalized 4 virtues of In, Eui, Ye, Gi categorized as most comprehensive range. They made an effort to become those who are filled with love(In), justice(Eui), courtesy(Ye), wisdom(Gi). Second, positive change effects are not based on single dimension but it depends on overall dimensions such as health, wisdom, emotion, morality, and spirituality. Health as qualities of PE teacher is concerned with achieving excellence in sport performance and keeping in good shape. Wisdom is concerned with having knowledge about the methods of PE class and preparing, being well-informed of character education and applying it to PE class, and noticing and managing students` changes in character. Emotion is associated with believing relationship with student important and being contented with students` enjoyment. Morality is concerned with trying to become a whole person a good model. Spirituality is associated with cherishing PE, students, themselves, and god, and pursuing students` development to become a whole person. These characteristics and qualities of PE teachers influenced to students on the whole process such as preparation, execution, and reflection of PE classes. It showed a stronger influence on the students` character changes when PE teachers exert to reflect and compliment themselves. Conclusion: Character development in students is not based on teacher`s content knowledge and instructional techniques. Character of students can be positive only when PE teachers` wholeness involved on the whole. It should reflect to in-service education for PE teachers about students` character. Furthermore we must research more in depth about what types of qualities of teachers give students` change in some types of pathways.

      • KCI등재후보

        학교내 체육수업 개선의 실질적 장애요인에 대한 중학교 체육교사의 인식과 대처전략

        최의창(Eui Chang Choi) 한국스포츠교육학회 2002 한국스포츠교육학회지 Vol.9 No.2

        학교교육이 개선의 집중시선은 받고 있다. 학교체육도 예외는 아니며, 그 중에서도 체육수업의 질을 향상시켜야 한다는 목소리도 높다. 그러나, 학교체육에 약간이라도 실제적 관심을 가져보고, 교사생활은 조금이라도 해본 사람이라면, 체육수업의 개선이 얼마나 어려운 일인가를 잘 알고 있다. 그러나 학교체육의 개선은 피할 수 없으며 시급히 추진되어야 하는 과제이다. 본 연구의 목적은 학교체육 개선에 있어서 실질적으로 부정적 요소로 작용하는 저해요인들이 무엇인가에 대하여 체육교사들이 어떻게 생각하며, 이들은 실제적으로 어떤 방식으로 이 저해요인들을 극복하려는 대응노력들을 펼치는가를 파악하려는 것이다. 7명의 개선지향적 체육교사들을 대상으로 개방형 심층설문은 해본 곁과, 중요한 저해요인들로 인식적, 의지적, 풍토적, 제도적, 물리적 요인들이 관여하는 것으로 나타났다. 체육교사들은 이런 문제에 당면하여 스스로 해결하는 개별실행, 동료와의 상의를 통한 동료간협의, 자신의 문제해결능력을 증진시키는 전문능력개발의 전략을 채택하는 것으로 나타났다. 저해요인들의 원천과 대응전략들의 특징을 분석한 후, 학교체육 개선에 있어서 일차적 관심이 주목되어야하는 요인들로 체육교사의 의지와 체육부서의 풍토을 지적하였다. Schooling is getting educational reformers` attention. School physical education (PE) is not exception. Improvement of teaching in PE is said to be the most urgent. However, anyone who knows how the PE in schools is working would acknowledge the difficulty of change. Change in school PE is one of the most difficult challenges for school reformers. The purpose of this study is to identify PE teachers` perceptions on the constraints to the instructional change and their coping strategies. Seven (6 males and 1 female) change-oriented PE teachers whose teaching experiences range 2 to 16 years were asked to write on an open-ended, in-depth questionnaire. Main constraints were perceptual, willful, cultural, institutional, and physical ones. PE teachers coped with three strategies of individual action, cooperation with colleagues, and professional development. The sources of constraints and the characteristics of coping strategies were analyzed. The courage of individual teachers and the culture of PE department were emphasized for the two main centers for school PE change.

      • Clinicopathological study on metastatic skin cancer

        ( Chang Il Kwon ),( Seo Mi Gon Jeong ),( Young Bin Shin ),( Yun Sun Moon ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2020 대한피부과학회 학술발표대회집 Vol.72 No.1

        Background: Various primary tumors can cause metastatic skin cancer. Metastatic skin lesion should be distinguished from other skin lesion. Objectives: We studied patients with metastatic skin cancer to find out average age, gender distribution, frequency of primary tumor, time interval between manifestation and primary cancer, and their clinical appearance, location and other metastatic sites. Methods: We reviewed the medical records, clinical photographs and histopathologic records of patients who had been diagnosed with metastatic skin cancer. Results: In the comparison according to clinical records, the mean age at the time of diagnosis was 60.6 years. The ratio of men to women was 1.05:1. The most frequent primary tumors were breast cancer (22.0%), lung cancer (17.0%), head and neck cancer (17%), melanoma (17.0%), gastrointestinal cancer (11%), urologic cancer (11%), and gynecologic cancer (6%). Metastatic skin cancers usually presented as discrete, painless, hard nodules, with sudden onset (88%). Conclusion: Based on the results of this study, it is believed that it is important to recognize the metastatic lesion between various skin lesion such as infections and granulomatous changes of other cause due to drugs and reactive changes.

      • Newly emerging geminiviruses in Korea

        Eui-Joon Kil,Chairina Fadhila,Vo Thi Bich Thuy,Aamir Lal,Samira Zarghami D.,Hee-Seong Byun,Chung-Kyoon Auh,Ji-Kwang Kim,Joong-Hwan Lee,Gwan-Seok Lee,Chang-Seok Kim,Hong-Soo Choi,Kyeong-Yeoll Lee,Sukch 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10

        Geminiviruses are plant-infecting viruses with monopartite or bipartite single-stranded circular DNA genomes. They are known to be mediated by insects such as whiteflies, treehoppers, leafhoppers or aphids and can cause devastating plant diseases in a wide range of economically significant crops worldwide. In Korea, occurrence of geminiviruses were reported officially after the 2000s. Although Honeysuckle yellow vein virus (HYVV) and Sweet potato leaf curl virus (SPLCV) were identified from honeysuckle and sweet potato in 2004 and 2006 respectively, these viruses did not spread and cause much concern for geminiviruses. In 2008, Tomato yellow leaf curl virus (TYLCV) that has caused severe tomato production loss in many subtropical and tropical countries was first reported in tomato plants cultivated in Tongyeong. TYLCV rapidly spread through the country and has been continuously reported from tomato cultivating areas in Korea. In addition to TYLCV, Tobacco leaf curl virus and Sweet potato golden vein associated virus have occurred. In recent years, new geminiviruses including Papaya leaf curl Guangdong virus (PaLCGdV) and Euphorbia leaf curl virus (EuLCV) have been introduced. Newly emerging geminiviruses from tropical and subtropical countries are due to increased demand for various fruits and vegetables, and climate change. In addition, there are reports that some geminiviruses including TYLCV can be transmitted by infected seeds. Therefore it is important to study on epidemiology of virus introduction and spread among the countries and within country.

      • KCI등재

        안전상비의약품 판매 이후 중독환자 특성 변화

        김창영,이의중,이성우,김수진,한갑수,Kim, Chang Yeong,Lee, Eui Jung,Lee, Sung Woo,Kim, Su Jin,Han, Kap Su 대한임상독성학회 2018 대한임상독성학회지 Vol.16 No.1

        Purpose: On November 15, 2012, sales of OTC (Over-The-Counter) drugs began at convenience stores, which changed the accessibility of some drugs. As a result, the exposure and access patterns of these drugs could have changed. In this study, we reviewed the changes in the characteristics of drug poisoning patients because of the reposition of nonprescription drugs according to the revised Pharmaceutical Affairs Act. Methods: A retrospective study was conducted to evaluate changes in characteristics of drug poisoning patients between 2008 and 2016. A registry was developed by an emergency medical center in a local tertiary teaching hospital, and patients who visited the center were enrolled in this registry. We compared two periods, from 2008 to 2012 (Pre OTC) and from 2013 to 2016 (Post OTC), for type of intoxicant, time from poisoning to visiting the emergency center, intention, psychiatric history, previous suicidal attempt, alcohol status, and emergency room outcomes. The primary outcome was the number of patients who took acetaminophen and NSAIDs (nonsteroidal anti-inflammatory drugs). Secondary outcomes were ICU admission rate, mortality rate, and number of patients who visited the ER when the pharmacy was closed after taking acetaminophen and NSAIDs (nonsteroidal anti-inflammatory drugs). Results: Among 1,564 patients, 945 and 619 patients visited the emergency room during pre and post OTC periods. The number of patients with acetaminophen and NSAIDs poisoning decreased from 9.2% to 6.1% (p=0.016). The ICU admission rate and mortality rate in the emergency room did not show significant results in the relevant patient groups, and so was the number of patients visiting ER when the pharmacy was closed taking acetaminophen and NSAIDs. Conclusion: Despite the sales of nonprescription drugs at convenience stores, the number of acetaminophen and NSAIDs poisoning patients decreased.

      • Monascus purpureus를 이용한 쌀로 부터 천연식용 색소생산에 관한 연구

        변광의,장성근,고영주 순천향대학교 기초과학연구소 1995 순천향자연과학연구 논문집 Vol.1 No.1

        Studies on the optimal conditions for the production of natural edible red pigments with Monascus purpureus Went were performed. The optimal pH of strain on agar medium was 5.5 and the optimum autoclaving time for rice medium was twenty minutes. Analysis of food components of the raw or the fermented rice showed a remarkable changes: the contents of components were increased in moisture, crude protein and crude fat after the fermentation, but decreased in starch. starch. There was no difference in ash content but the reducing sugar in the fermented rice was detectable. The color intensity of the fermented rice revealed a wide range of differences among the regions produced. The water activity of rice medium was decreased but colony counts were increased during the fermentation periods. In the ergosterol assay, the peaks of ergosterol standard and fermented rice revealed a similar retention time. Changes in food components during the fermentation periods were daily investigated: the contents in moisture, crude protein and reducing sugar were increased but in starch content decreased. The water soluble extracellular pigment and the alcohol soluble intracellular pigment were increased continuously but the water soluble total pigment decreased at 10 day. In effect of inorganic salts, (NH₄)₂SO₄. FeSO₄·7H₂O. NH₄NO₃. MnO₂. NaN₃ and KNO₃have stimulated the pigment production. The absorption spectra of pigment solutions exhibited the maximum at 400nm and 500nm On thin layer chromatogram, the red pigment preparation revealed five fractions {R₁(??) -R₄} and yellow pigment preparation consisted of single fraction(Y₁). These basic results will be applied for studies of the polyketide biosynthesis pathway, the innovation of solid-state bioreactor and the production of natural food ingredients.

      • 建設工事 入札制度의 實態와 改善方向에 關한 硏究

        김의식,김창범 朝鮮大學校 建設技術硏究所 1999 建設技術硏究 Vol.19 No.3

        The bid and contract system of public sector with such a great scale prepared the various bid systems to prevent the waste of budget according to the highest bid price, but it has not achieved the actual effects in the rapidly changing domestic and overseas environment according to the globalization and openness. Therefore, this study examines the major bid and contract systems of domestic construction works and their changes, compares and analyzes the them to foreign conditions and aims at minimizing the operational problems in the current bid and contract system and presenting the improvement methods for the settlement of fair order. This research is not focused on settling the current problems, but seeks the developmental directions for the standardization of bid and contract system. The suggestions of this research are made as follows; First, the specialization of ordering agency is improved through the cultivation of private professionals and the operation of professional education system and the extended right of discretion is given to the ordering agency with the introduction of dispersed ordering system and the legalization of the various ordering methods. Second, the survey price of actual transaction is reflected as the estimated price through the improvement of government cost calculation system to achieve the rationalization of the estimated price calculation. Third, the incentive system, a kind of value engineering of a new technology, should be legalized for the improvement of competitiveness through the encouragement of the will to develop a new technology and construction and technical ability, escaping from the price centered current system. Fourth, the number of selecting the proper companies is reduced to under 10 companies as the PQ system related improvement method, the computerized system of ordering agencies is prepared, the regular qualification screening is conducted, the work efficiency by the screening system of each case is maximized and the simplification of administrative procedures is pursued.

      • KCI등재

        방사선조사가 Porphyromonas gingivalis에 미치는 영향

        이창환,김규태,최용석,황의환 대한구강악안면방사선학회 2008 Imaging Science in Dentistry Vol.38 No.1

        Purpose : The aim of this study was to observe a direct effect of irradiation on the periodontopathic Porphyromonas gingivalis (P. gingivalis). Materials and Methods : P. gingivalis 2561 was exposed to irradiation with a single absorbed dose of 10, 20, 30, and 40 Gy. Changes in viability and antibiotic sensitivity, morphology, transcription, and protein profile of the bacterium after irradiation were examined by pour plating method, disc diffusion method, transmission electron microscopy, RT-PCR, and immunoblot, respectively. Results : Viability of irradiated P. gingivalis drastically reduced as irradiation dose was increased. Irradiated P. gingivalis was found to have become more sensitive to antibiotics as radiation dose was increased. With observation under the transmission electron microscope, the number of morphologically abnormal cells was increased with increasing of irradiation dose. In RT-PCR, decrease in the expression of fimA and sod was observed in irradiated P. gingivalis. In immunoblot, change of profile in irradiated P. gingivalis was found in a number of proteins including 43-kDa fimbrillin. Conclusion : These results suggest that irradiation may affect the cell integrity of P. gingivalis, which is manifested by the change in cell morphology and antibiotic sensitivity, affecting viability of the bacterium.

      • 광분광기 (OES)를 사용한 SBT 박막의 식각 특성 연구

        신성욱,장의구 중앙대학교 기술과학연구소 2000 기술과학연구소 논문집 Vol.30 No.-

        본 논문에서는 SrBi_2Ta_2O_9 (SBT) 박막의 식각 (특히 Cl_2 가스에 대한)에 대한 연구가 거의 이루어지지 않아 RF 전력, dc 바이어스 그리고 Cl_2/(Cl_2+Ar) 가스 혼합비에 따라 고밀도 플라즈마를 이용하여 SBT 박막을 식각하였으며 OES (optical emission spectroscopy)를 이용하여 그 표면 반응을 연구하였다. SBT 박막의 식각 속도는 Ar 이온들의 물리적인 스퍼터링 (sputtering)보다는 Cl 라디칼과 SBT 박막의 각 성분과의 화학적 반응이 첨가되었을 때 더 효과적이었다. 가스 혼합비에 따라서 OES로 측정한 Cl 라디칼의 밀도 변화는 SBT 박막의 식각속도 변화와 잘 일치하였다. 그러므로 플라즈마 내의 Cl 라디칼과 SBT 박막의 각 성분들은 그 식각속도를 증가시키고 이러한 결과들은 XPS (x-ray photoelectron spectroscopy) 분석으로 검증하였다. In this paper, since the research on the etching of SrBi_2Ta_2O_9 (SBT) thin film was few (specially Cl_2-base), we had studied the surface reaction of SBT thin films using the OES in high density plasma etching as a function of RF power, dc bias voltage, and Cl_2/(Cl_2+Ar) gas mixing ratio. The change of Cl radical density that is measured by the OES as a function of gas combination showed the change of the etch rate of SBT thin films. Therefore, the chemical reactions between Cl radical in plasma and components of the SBT enhance to increase the etch rates of SBT thin films and these results were confirmed by XPS analysis.

      • KCI우수등재

        이동 클립을 이용한 건축물 외장재의 구조적 성능에 관한 연구

        곽의신(Kwak, Eui-Shin),기창군(Ki, Chang-Gun),이상호(Lee, Sang-Ho),손수덕(Shon, Su-Deok),이승재(Lee, Seung-Jae) 대한건축학회 2017 大韓建築學會論文集 : 構造系 Vol.33 No.12

        A recent global trend in the increase of earthquake-related disasters has become so frequent as to cause various damages to a wide range of mid- to high-rise buildings. Particularly, more attention is being paid to the effect of horizontal load in high-rise buildings not only on the key structural elements of the structures, but also on the possibility of the secondary damages to them due to the failure of exterior panels, which are non-structural elements, but such damages are difficult to cope with as they may be caused by unexpected changes. The present study examined exterior panels using moving clips to prevent such secondary damages on the non-structural elements and analyzed the structural performance of these exterior panels through the finite element analysis and the shaking table test. The analysis results showed that the exterior panels using moving clips satisfied the structural performance against the allowable story drift of KBC2009 and the safety of the exterior panels was verified by the shake table test.

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