초등학교 교사들의 과학과 실험연수에 대한 의식 조사

서승조,조태호,백남권,김성규,박강은,정순호 晋州敎育大學校 科學敎育硏究所 2001 科學敎育硏究 Vol.27 No.-

This study investigated the perceptions of elementary school teachers' on the science experimental training course using closed-form questionnare. 437 elementary school teacher, 21 school, 14 cities and counties in Gyung Nam province were selected as the objects for researching these matters. The results were as follows; First, without system and holding type teachers choose on the training not the same time but their ability freely. Second, to extend the trust the composition of place and instructor must be based on professor and research in the national university of education. Third, the composition of the text must be made of scientific growth based on important experimental activities teaching strategy, the using of materials. It must be increase multimedia training course on the science education. Fourth, the method of training course it must be happen on the experiment and discussion and it is necessary to grow up training level. Fifth, the type of training it must not give the score. Therefore it will be free and comfortable without difficulties. In the results, the improvement of science experimental training course is compatible on the purpose and it will help on the science teaching-learning.

초등학교 과학과 에너지영역의 STS 내용 변천

서승조,조태호,백남권,김성규,박강은,정인재 晋州敎育大學校 科學敎育硏究所 2001 科學敎育硏究 Vol.27 No.-

This research compared and analyzed the content ratio of the STS (Science-Technology-Society) Education and subjects and types of learning activities to determine the characteristics of STS education in science classes of elementary schools. In the 5th curriculum, the STS-related content on energy section took up 6.6% , in the 6th curriculum, compared with that of the 5th, the STS content ratio on the energy section increased 7.9% and the STS content on the energy section in the 7th curriculum showed an increased 20.8% proportion. Comparing the main subjects of the STS in the energy section for the science class according to curriculum in the 5th, they obviously have influenced technological development, energy, the development of space studies, and sociology of science, in that order. In the 6th curriculum. compared with that of the 5th, the energy section decreased and the sociology of science increased much. There were no significant changes in other subjects. In the 7th, the STS elements were distributed evenly but the extent of the STS main subjects reduced compared to that of the 6th. The STS education activities represented in science textbooks of elementary schools were mainly executed through discussion, research activities, and actual activities. Other activities such as role-playing, simulation tests, problem solving and decision making, data analysis, research design, case studies, etc. were hardly made.

초등학교 과학 수행평가에 대한 교사의 인식

서승조,조태호,백남권,박강은,김성규,박장서 晋州敎育大學校 科學敎育硏究所 2001 科學敎育硏究 Vol.27 No.-

The purposes of this study are to examine how Science Performance Assesment is being well conducted in elementary schools and to check the teachers' awareness through surveying the actual condition. To achieve this purpose, the author, in this study, distributed questionnaire developed by researcher under supervision of academic advisor to the elementary school teachers in Gyeongnam province. Based on the data. the research results were mainly analyzed by the statistical method using Chi-square test. The survey was consisted of questions which was designed to perceive teachers' awareness about elementary school science performance assessment. The main findings of this study are summarized as follows', 1. Elementary teacher's are doing affirmative estimation about induction of performance assessment. 2. Most teacher are recognizing performance assessment right and teachers' understanding appeared high. 3. Material development of performance assessment is recognizing that people who have opinion which is special must develop. 4. The biggest problem of performance assessment fixing is recognizing that number of persons per class are many and amount of training courses is much also with the tribe during time. 5. It was recognizing positively whether it is in class improvement of performance assessment effect. 6. Teachers had awareness that confirm studies accomplishment degree through performance assessment, or will utilize to improvement material of teaching-learning method.

초등교사의 과학과 환경 교육에 대한 수업실태 분석 및 인식도

조태호,서승조,백남권,김성규,박강은,박원석 한국환경과학회 2002 한국환경과학회지 Vol.11 No.7

The purpose of this study was to analyze the elementary school teachers' perception toward the environment-related subjects in science education and to investigate their instructional methods in delivering the subjects in the classroom. The participants of this study were 300 elementary school teachers sampled from elementary schools in Kyung Nam Province. The findings of this study were as follows; First, more than half of the teachers surveyed showed that the environment-related units and contents in the science textbook were insufficient to the existing issues. Second, the large portion of teachers responded that the teaching materials in the textbook were insufficient to deliver the contents. Third, the largest portion of respondents replied that their preferred instructional method was a teacher-directed instruction followed by a case study approach. Fourth, in terms of the effectiveness of environmental education, both male and female teachers showed negative responses. Furthermore, male teachers were more negative than female teachers. Fifth, total means of their preference of the environment-related units was 3.13. The unit for sixth graders titled 'Environmental Pollution and Protecting Nature' showed the highest preference, whereas the unit for fifth graders titled 'Structure and Functions of Plants' showed the lowest preference. Sixth, there was no statistically significance in gender and their working areas. Seventh, there was statistically significant differences between male and female teachers in terms of teaching experience. In detail, the teachers with 5 to 9 teaching experience showed the lowest scores, while the teacher with more than 15 years teaching experience showed the highest scores in their perception of the units. Eighth, there was a significant difference between two groups in terms of their educational background. For example, two-year college graduates showed higher preference than four-year college graduates.

Angiotensin Concerting Enzyme 유전자의 유전적 다형성(Genetic Polymorphism)이 관상동맥 질환 위험인자에 따른 혈중 Plasminogen Activator Inhibitor-1의 농도에 미치는 영향

김덕경,김종원,권현절,류재춘,박승우,김준수,이상훈,홍경표,박정의,이원로 대한고혈압학회 1996 대한고혈압학회지 Vol.2 No.2

Association between long working hours and serum gamma-glutamyltransferase levels in female workers

Seung-Gwon Park,Yong-Jin Lee,Jung-Oh Ham,Eun-Chul Jang,Seong-Woo Kim,Hyun Park 대한직업환경의학회 2014 대한직업환경의학회지 Vol.26 No.-

Objectives: The present study investigated the association between long working hours and serum gammaglutamyltransferase (GGT) levels, a factor influencing the incidence of cardiovascular disease. Methods: Data from the fifth Korean National Health and Nutrition Examination Survey (2010?2011) were used to analyze 1,809 women. Subjects were divided into three groups based on the number of weekly working hours: ≤29, 30?51, and ≥52 hours per week. Complex samples logistic regression was performed after adjusting for general and occupational factors to determine the association between long working hours and high serum GGT levels. Results: The prevalence of high serum GGT levels in groups with ≤29, 30?51, and ≥52 working hours per week was 22.0%, 16.9%, and 26.6%, respectively. Even after adjusting for general and occupational factors, those working 30?51 hours per week had the lowest prevalence of high serum GGT levels. Compared to those working 30?51 hours per week, the odds ratios (OR) of having high serum GGT levels in the groups with ≥52 and ≤29 working hours per week were 1.56 (95% confidence interval [CI], 1.10?2.23) and 1.53 (95% CI, 1.05?2.24), respectively. Conclusions: Long working hours were significantly associated with high serum GGT levels in Korean women.

Stents versus coronary-artery bypass grafting for left main coronary artery disease.

Seung, Ki Bae,Park, Duk-Woo,Kim, Young-Hak,Lee, Seung-Whan,Lee, Cheol Whan,Hong, Myeong-Ki,Park, Seong-Wook,Yun, Sung-Cheol,Gwon, Hyeon-Cheol,Jeong, Myung-Ho,Jang, Yangsoo,Kim, Hyo-Soo,Kim, Pum Joon,S Massachusetts Medical Society 2008 The New England journal of medicine Vol.358 No.17

<P>BACKGROUND: Several studies have compared the treatment effects of coronary stenting and coronary-artery bypass grafting (CABG). However, there are limited data regarding the long-term outcomes of these two interventions for patients with unprotected left main coronary artery disease. METHODS: We evaluated 1102 patients with unprotected left main coronary artery disease who underwent stent implantation and 1138 patients who underwent CABG in Korea between January 2000 and June 2006. We compared adverse outcomes (death; a composite outcome of death, Q-wave myocardial infarction, or stroke; and target-vessel revascularization) with the use of propensity-score matching in the overall cohort and in separate subgroups according to type of stent. RESULTS: In the overall matched cohort, there was no significant difference between the stenting and CABG groups in the risk of death (hazard ratio for the stenting group, 1.18; 95% confidence interval [CI], 0.77 to 1.80) or the risk of the composite outcome (hazard ratio for the stenting group, 1.10; 95% CI, 0.75 to 1.62). The rates of target-vessel revascularization were significantly higher in the group that received stents than in the group that underwent CABG (hazard ratio, 4.76; 95% CI, 2.80 to 8.11). Comparisons of the group that received bare-metal stents with the group that underwent CABG and of the group that received drug-eluting stents with the group that underwent CABG produced similar results, although there was a trend toward higher rates of death and the composite end point in the group that received drug-eluting stents. CONCLUSIONS: In a cohort of patients with unprotected left main coronary artery disease, we found no significant difference in rates of death or of the composite end point of death, Q-wave myocardial infarction, or stroke between patients receiving stents and those undergoing CABG. However, stenting, even with drug-eluting stents, was associated with higher rates of target-vessel revascularization than was CABG.</P>

Chronic total occlusion intervention of the non-infarct-related artery in acute myocardial infarction patients: the Korean multicenter chronic total occlusion registry

Park, Ji Young,Choi, Byoung Geol,Rha, Seung-Woon,Kang, Tae Soo,Choi, Cheol Ung,Yu, Cheol Woong,Gwon, Hyeon-Cheol,Chae, In-Ho,Kim, Hyo-Soo,Park, Hun Sik,Lee, Seung-Hwan,Kim, Moo-Hyun,Hur, Seung-Ho,Jang Wolters Kluwer Health, Inc. All rights reserved. 2018 Coronary artery disease Vol.29 No.6

<P>BackgroundThe Korean chronic total occlusion (CTO) registry was collected prospectively from 26 cardiovascular centers since May 2007. The aim of this study is to investigate the impact of a successful staged percutaneous coronary intervention (PCI) of CTO lesions in acute myocardial infarction (AMI) patients on clinical outcomes.Patients and methodsAmong 2813 patients who underwent a staged PCI because of CTO lesions, 422 (15%) patients underwent primary PCI because of AMI. Among 422 patients, successful staged CTO-PCI was performed in 76%. The clinical outcomes were compared between the successful CTO-PCI group (n=321) and the failed CTO-PCI group (n=101). To adjust for potential confounders, a propensity score matching (PSM) analysis was carried out using the logistic regression model.ResultsAfter the PSM analysis, two propensity-matched groups (85 pairs, n=170) were generated and the baseline characteristics were balanced. The incidence of total death (P=0.029) and non-ST-segment elevation myocardial infarction (NSTEMI, P=0.043) at 1 year was higher in the failed CTO-PCI group. Multivariate regression showed that successful CTO-PCI was an independent predictor of preventing mortality (hazard ratio, 0.21, P=0.048). In the subgroup analysis, the Kaplan-Meier curve showed that successful CTO-PCI had a lower incidence of total death (log-rank=0.004) and cardiac death (log-rank=0.005) up to 1 year in NSTEMI patients. Cox-proportional analysis showed that successful CTO-PCI was beneficial in patients with NSTEMI, hypertension, and non-left-anterior descending artery lesion for preventing mortality.ConclusionIn this study, a staged successful CTO-PCI in AMI patients was associated with improved 1-year survival in the Korean population.</P>

Modified driving waveform for improving write discharge characteristics in open dielectric structure of AC PDP

Park, Seung Seob,Jeong, Yeon Tae,Park, Choon-Sang,Tae, Heung-Sik,Cho, Byung-Gwon Informa UK (TaylorFrancis) 2018 MOLECULAR CRYSTALS AND LIQUID CRYSTALS - Vol.663 No.1

수질외 형질세포종으로 진단된 공장 협착

박일권 ( Park Il Gwon ),이윤정 ( Lee Yun Jung ),박도현 ( Park Do Hyun ),한송이 ( Han Song Yi ),이진혁 ( Lee Gin Hyug ),명승재 ( Myung Seung Jae ),양석균 ( Yang Suk Kyun ),홍원선 ( Hong Weon Seon ),김진호 ( Kim Jin Ho ),민영일 ( Mi 대한소화기학회 2003 대한소화기학회지 Vol.42 No.1

Extramedullary plasmacytoma is a rare disease in which a neoplastic proliferation of plasma cells originates from the outside of the bone marrow. The jejunum is the most common site of extramedullary plasmacytoma of the gastrointestinal tract and its common complications are intestinal obstruction due to mass, gastrointestinal bleeding, and intussusception. A 68-year-old woman presented with intermittent postprandial abdominal pain, vomiting, and weight loss. Abdomen and pelvis CT revealed diffuse wall thickening of the proximal jejunum. Small bowel series and enteroclysis revealed a short segment stricture of the proximal jejunum. A 2 cm long jejunal stricture was detected on peritoneoscopic surgery. A pathology showed a solid mass beneath the submucosa grossly and malignant plasma cell infiltration microscopically. A immunochemical staining showed monoclonal kappa chain expression. A bone marrow examination showed only mild reactive plasmacytosis. Serum protein electrophoresis, skull and spine X-ray showed no specific abnormality, and urinary Bence Jones protein was negative. (Korean J Gastroenterol 2003;42:67-71)