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보건의료서비스 시장개방 논의에 대한 치과의사 견해 조사연구(下)
정세환,양승욱,김철신,김영남,전양호,Jeong, Se-Hwan,Yang, Seung-Uk,Kim, Cheol-Sin,Kim, Yeong-Nam,Jeon, Yang-Ho 대한치과의사협회 2002 대한치과의사협회지 Vol.40 No.8
2001년 카타르 도하에서 열린 세계무역기구(WTO)의 각료회의 결과 2005년까지 보건의료 서비스분야의 시장개방 논의를 마쳐야 한다. 이에 국내 의료계는 의료공동대책위원회를 구성하여 대응방안을 모색하고 있으며, 치협도 특별위원회를 구성하여 국민 구강보건에 최선의 방향을 찾기 위해 노력을 하고 있다. 그런 노력의 일환으로 치협은 치과의사들이 현 의료시장 개방이라는 명제 앞에서, 얼마나 처해진 상황을 잘 파악하고 있으며 무엇을 원하는 가를 알기 위해 회원들의 의견을 물었다. 이번 호와 다음 호에서는 치협이 지난 4월에 회원 및 치대생 등에게 설문 조사한 결과를 중심으로 모아진 회원들의 견해를 중심으로 구강보건정책연구회에서 발표한 자료를 게재한다.
朝鮮語學習書 韓語通 の言語學的一考察 -動詞についての記述を中心に-
정세환 한국일본근대학회 2010 일본근대학연구 Vol.0 No.27
本硏究は日本人向けの朝鮮語學習書である前間恭作著『韓語通』のうち、特に動詞に關する記述について言語學的觀点から考察することを目的としたものである。『韓語通』では動詞の內部構造を「語根+語尾」とし、全體的に動詞の活用、特に語尾の變化を中心として論じている。論述にあたっては、朝鮮語動詞の意味·用法を日本語學の槪念を用いて說明しているところが目立つ。文法事項に關する定義などが省略されている場合が多く、基本的に日本語學に關する知識を持っている人を對象としていると考えられ、文型や例を示す場合にも、日本語の表現を中心としてそれに對應させる形で朝鮮語の文型や例を示している。また、當時のことばだけではなく古語にも言及しているが、古語そのものの意味·用法のみならず、古語と當時の朝鮮語との間の對照關係や、古語の影響を受けた方言にも言及している上、話し言葉としての口語にも言及している。日本語學を土台にしつつも、朝鮮語動詞の特徵を體系的にまとめようとした試みは評價されるべきであろう。
한국 성인의 소득수준에 따른 치아우식, 깊은 치주낭, 다수 치아 상실의 불평등 추이: 국민건강영양조사 자료를 이용한 구강건강 불평등 추이 분석(2)
정세환 대한예방치과·구강보건학회 2022 大韓口腔保健學會誌 Vol.46 No.2
Objectives: The purpose of this study is to analyze the trend of inequality in dental caries, deep periodontal pockets, and severe tooth loss according to the income level of adults using data from the Korea National Health and Nutrition Examination Survey (KNHANES). Methods: The raw data from the 4th wave (2007-2009) to the 7th wave (2016-2018) were downloaded from the KNHANES website. The analytical subjects were 19 years of age or older who completed oral examinations and were classified differently according to the prevalence characteristics of each clinical indicator. The prevalence of permanent tooth caries (19 years +), deep periodontal pockets (30 years +), total tooth loss (50 years +), and 20 teeth and over (70 years +) were estimated according to the guidebook for data users. The absolute difference (AD) between thelowest and highest income levels and the prevalence ratio (PR) were calculated. All statistical analyses were performed with STATA version 13. Results: The prevalence of permanent tooth caries decreased by 6.7%, but the AD increased by 3.4% and the PR was statistically significant. The prevalence of deep periodontal pockets was 6-10%, but the AD increased by 1.7%, and the PR of 7th wave rapidly increased. The prevalence of total tooth loss decreased by 1.5%, but in the 7th wave, the AD and the PR rapidly increased. The prevalence of 20 teeth and over increased by 10.9%, but the AD increased by ―4.3%, and the PR was statistically significant in the first and second quantiles of all waves. Conclusions: In Korean adults, overall oral health status has improved over the past decade, but oral health inequality according to income level has generally worsened. Therefore, policy development including intervention in social determinants is needed to reduce the oral health inequality identified in this study.
과산화수소 , 무수피로인산나트륨 및 불화나트륨을 배합한 특수세치제의 치아미백효과에 관한 실용실험연구
정세환,배광학,이원재,문혁수,백대일,김종배 대한구강보건학회 2001 大韓口腔保健學會誌 Vol.25 No.2
The purpose of this study was to evaluate the effects of therapeutic toothpaste containing tetrasodium pyrophosphate, vitamin-E and hydrogen peroxide on the whitening. 55 adult male and female subjects aged 20 to 29 year-olds completed 2-week, double-blind clinical study. Subjects were divided by two balanced groups according to baseline tooth brightness. Trubyte Bioform shade guide was used to score the tooth brightness. There was statistical significance of the brightness changes between the therapeutic toothpaste and the control toothpaste after 2 weeks(P<0.05). This result suggest that therapeutic toothpaste containing tetrasodium pyrophosphate, vitamin-E, and hydrogen peroxide be effective on improving tooth whitening.
Reverse Bending을 통한 CTOD 시험 예비균열 형상균일화에 관한 연구
정세환,박동환,김현수,신상범,박태종,Jeong, Sehwan,Park, Dong-Hwan,Kim, Hyeon-Su,Shin, Sang-Beom,Park, Tae-Jong 대한용접접합학회 2015 대한용접·접합학회지 Vol.33 No.2
This study investigates the appropriate range of reverse bending load for the CTOD test of thick weld by observing improvement of pre-crack shape and determination of the limit applicable load. In order to do it, the effect of the amount of the reverse bending load on the maximum deviation of the pre-crack length was investigated by the extensive tests, and the variation of plastic zone size in way of the crack tip under reverse bending load were evaluated by FEA. With the results obtained by the experiments and FEA, the proper range of reverse bending load was suggested. The effectiveness of the reverse bending method was verified by examining the pre-crack straightness after CTOD tests of thick weld specimens with various thickness and strength.
비형식교육기관의 환경교육 프로그램의 개발 및 적용(무인도를 이용한 체험활동 프로그램 사례)
정세환,박영신 대한지구과학교육학회 2015 대한지구과학교육학회지 Vol.8 No.3
The ultimate goal of environment education plays an important role in forming knowledge, skill, attitude and a point of value along with sustainable development in the regions. Recently, however, environment education is comparatively despised due to college-entrance-exam-focused education policy. Ironically, environment education is more actively implemented at informal institutes rather than formal ones. Environment education at schools is based on the school curriculum, but at informal educational institutes enjoy much more freedom in choosing learners, places and programs. Among them, the place is one of the most important factors of environment education. Therefore, in order to maximize the goal of environment education in this study, a specified program was developed and applied to a certain place to investigate its features and effects. Also the program was checked if it reflexes the environment education goal by using environment education program analysis frame. The results are as follows; according to the analysis of the program, the program was most effective for the two goals of offering hands-on experience and presenting motivations. The second most effective result of the program lied in the goal of knowledge, functions, value and attitude. And the teachers who used this program concluded that, when the program was applied to unmanned islands, offered stronger motivation due to their natural surroundings. Furthermore, direct experience is recommended because it can give us better conditions to collect data and to enhance interpretation ability.