顎關節機能障碍 診斷을 爲한 頭部軸方向 放射線寫眞에서의 下顎顆頭의 位置分析

卞鍾秀,崔珣哲,金碩鎬 大韓口腔顎顔面 放射線學會 1991 Imaging Science in Dentistry Vol.21 No.1

저자는 顎關節機能障碍의 소견을 가진 환자 75명과 顎關節機能障碍의 病歷 및 現症이 없는 정상인 75명을 표준화된 조건하에서 頭部軸方向放射線撮影을 하여 顆頭水平角과 initial 및 final depth of cut를 측정하고 통계학적으로 분석한 결과를 다음과 같이 요약할 수 있었다. 환자군과 정상군, 患側과 非患側에 있어 顆頭水平角과 initial 및 fianl depth of cut는 통계학적으로 유의한 차가 없었으므로 頭部軸方向放射線寫眞은 임상에서 顎關節機能障碍의 유무 및 患側과 非患側의 감별에 이용하기에 부적합한 방법이라 사료된다. 본 연구의 계축치는 편차가 심하므로 환자마다 顆頭水平角을 측정하여 이각에 맞추어 顎關節斷層撮影을 해야 한다고 사료된다. The purpose of this study was to analyze the position of mandibular condyle on the submentovertex radiopgraph, thereafter to evaluate the usefulness of submentovertex radiograph in diagnosis of temporomandibular joint dysfunction, and to check the best method of tomographic techniques. Submentovertex radiographs which were taken in 75 temporomandibular joint dysfunction patients and 75 normal persons were used as the sample for this study. The obtained results were as follows: The submentovertex radiograph was a improper method in diagnosis of temporomandibular joint dysfunction and discrimination of affected side. The selective tomography was a better method than any other tomographic techniques in diagnosis of temporomandibular joint dysfunction.

분자유전학 검사로 확진된 Hereditary Neuropathy with Liability to Pressure Palsy 환자 1 례

변재환,이원영,박성익,기창석,공선영,김종원,김선희 대한근전도전기진단의학회 2003 대한근전도 전기진단의학회지 Vol.5 No.1

Mn(Ⅲ)-Salen형 리간드 착물의 합성과 특성

변종철,한충훈,이남호,백종석 濟州大學校 基礎科學硏究所 2001 基礎科學硏究 Vol.14 No.2

diamine류 { ethylenediamine, 1,3-propanediamine, 2,2-dimethyl-1,3-propanediarnine, o-phenyle-nediamine}와 aldehydes { salicylaldehyde, 5-chlorosalicylaldehyde, 3,5-dichloro- salicylaldehyde, 3,5-di-tert-butyl-2-hydroxybenzaldehyde}를 methanol#액에서 축합반응시켜 네 자리 salen형 리간드(H₂L_(acn);n=1-11)를 합성하였다. 이들 리간드의 toluene(또는 methanol) 용액에 Mn(OAc)₂·4H₂O methanol용액을 첨가하고, 공기를 주입시켜[Mn(L_(acn))Cl] 착물을 얻었다. 이들 리간드 및 착물들은 원소분석, 전도도 및 NMR, IR, UV-VIS 분광학법을 이용하여 확인·고찰하였다. A series of tetradentate salen-type ligands(L_(ac)) were been prepared by condensation of diamines { ethylenediamine, 1,3-propanediamine, 2,2-dimethyl-1,3-propanediamine, and o-phenylenediamine} and aldehydes {salicylaldehyde, 5-chlorosalicylaldehyde, 3,5-di-chlorosalicylaldehyde, and 3,5-di-tert-butyl-2-hydroxybenzaldehyde} in methanol. These [Mn(L_(ac))Cl] complexes were synthesized from the reaction of toluene(or methanol) of L_(ac) with methanol solution of Mn(OAc)₂·4H₂O in the presence of air. These ligands and complexes were characterized and confirmed by elemental analysis, conductivity, NMR, IR, and UV-VIS spectroscopy.

군집분석을 이용한 층화방법의 연구

金允鍾,卞鍾錫 龍仁大學校 1995 용인대학교 논문집 Vol.11 No.-

The objective of a survey sampling is to draw inferences about a population from information contained in a sample. In many cases, a stratified random sample that is obtained by separating a population units into nonoverlapping groups, called strata, which measurements within strata are homogeneous, increases the quantity of information for a given cost. This study investigated the selection method of the region by the stratification using cluster analysis with the convenient grouping method which units(subjects) were grouped by similarities. According to the objectives and substances of a survey, stratified by a proper characteristics, will be better than simple random sampling(SRS) that the region was sampled randomly. Like this, groups that make use of the combination of properly possible variables that will be a strafication characteristics are regarded as stratum, STRS that sampled the region from each strata may obtain more the information, reflect more the property and represent more the structure about a population than SRS. Consequently, the inferences about a population parameters estimated from STRS may produce the accurate and the efficient results than SRS.

국내 상수원수의 유기물 특성에 따른 소독부산물 생성능

염철민,변석종,조순행,윤제용 대한상하수도학회 2003 상하수도학회지 Vol.17 No.1

This study was conducted to investigate the characteristics of disinfection by-products formation potential (DBPFPs) of dissolved organics. Dissolved organics in raw water were separated into two fractions ((1) hydrophilic and (2) hydrophobic) for the measurement of DBPs. Three types of DBPs (trihalomethanes (THMs), haloacetic acids (HAAs), and total organic halides (TOX)) were measured at 3days and 7days incubation time. Sample waters were collected from the Han River and the Wonchun Reservoir. Two major findings are as follows. First, THMFPs/DOC, HAAFPs/DOC and TOXFPs/DOC in the hydrophilic organic component had a level of lower value than those of the hydrophobic organic component. Brominated THMs and bominated HAAs were not found in the chlorinated hydrophobic organic component. Second, the magnitude of HAAFPs/DOC were higher than that of THMFPs/DOC in both hydrophilic and hydrophobic organic components. This results support the reported observation that HAAs formations were higher than that of THMs in chlorinated drinking water. THMFPs and HAAFPs comprised 53-91% of TOXFP.

난원공 개존을 통한 우심방에서 좌심방으로의 단락 진단에 있어 경흉부 심초음파 하모닉 영상의 유용성

신미승,강석민,장길진,변기현,하종원,정남식,허지회,이병인 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.4

국내 주요 상수원수와 처리수에서 HAAs 생성 특성

염철민,최유식,변석종,조순행,윤제용 대한상하수도학회 2002 상하수도학회지 Vol.16 No.2

This study was conducted to investigate the haloacetic acid (HAAs) formation characteristics in raw and treated water in Korea. The raw and treated water from the five major rivers were examined to measure the HAAs concentrations and compared those with literature values. Major findings are as follows. First, average HAAs concentration of treated water (collected from three water treatment plants) in Korea appeared to be 62.5±66.7㎍/L (n=7) and this level is higher than the average trihalomethanes (THMs) concentration (13.2±12.9㎍/L, n=6933) reported recently. Second, the average formation potential of TCAA and DCAA after three days was found as 103±74㎍/L (n=14) and 76±36㎍/L (n=14), respectively. As this result was applied to US-EPA developed model equation for TCAA and DCAA formation, dissolved organic matter (DOM) in Korea has a tendency to produce more TCAA and DCAA as compared to US. This phenomenon was especially notable in DCAA. The sum of weight percentage of TCAA and DCAA which are individual component of HAAS was composed of 80% of HAAs.

KAL기 추락에 의한 대량재해의 개인식별

강신몽,이원태,고영창,최상규,김윤희,이홍석,서재관,윤중진,이혜경,최득린,김종열,윤창육,변명식,이장홍 大韓法醫學會 1991 대한법의학회지 Vol.15 No.2

Individual identification is an important part in medicolegal field especially in mass disaster. At July, 27, 1989, KAL KE-803 was crashed on landing at Tripoli International Airport, Liba. The plane was caught in fire and sixty eight Koreans were sacrified. The majority of victims were severely charred and injured. The authors examed all dead bodies and successfully identified all the cases through visual, anthropological, odontological, radiological and pathological methods including fingerprint and blood typing.

경연대회를 통한 초·중고생의 창의력 현황에 관한 연구

육근철,이희복,류해일,김현섭,김희수,박달원,심규철,박종석,신영숙,박상태,변두원,김태균 공주대학교 과학교육연구소 2002 과학교육연구 Vol.33 No.-

21세기의 정보화 산업사회와 지식기반 사회에서 우리의 아이들이 자신의 목소리로 세계 속에서 살아가게 하기 위해서는 다른 사람과 다른 아이디어를 낼 수 있도록 교육의 틀을 바꾸지 않으면 안된다. 다라서 21세기의 미래 사회를 살아갈 학생들을 가르치는 교육의 현장 역시 창의적인 인간을 길러낼 수 있도록 변해야 한다. 즉, 미래 사회를 대비하기 위해서는 각 개인의 개성을 존중하는 분위기에서 창의적인 능력을 지닌 인간을 양성해야 한다는 것을 의미한다. 따라서, 학교 안에서의 교육뿐만이 아니라 학교 밖에서도 다양한 학습 경험을 통해서 교육 과정이 추구하는 인간상을 구현할 수 있도록 활동할 수 있는 기회가 학생들에게 제공되어야 한다. 창의력을 발휘하여 문제를 해결하는 능력을 기르기 위해서는 개별적이 아닌 여러 명의 동료가 주어진 과제를 해결할 수 있는 기회를 갖고 짧은 시간이 아닌 장시간 동안 고민하고 그 해결책을 찾는 활동을 가질 기회가 필요하다. In order to educate our students with their special talents for the informational and knowledge based age expected in the 21st century, we must improve our educational programs such that students are able to create their own fresh ideas. Hence the present educational environment should be changed such that they are willing to respect others' characters and personality with their own original ideas. Therefore, we must make them have the opportunity that they can acquire many experiences through the school education and the social education program, so that they may grow up to the person with the humanity and creativity. In this study we have suggested new educational program where students engage themselves in long term research projects with collaboration of the team and creativity of individuals.

경연 대회를 통한 초ㆍ중고생의 창의력 신장 효과에 관한 연구

이희복,육근철,류해일,김현섭,김희수,박달원,유병환,김선효,김여상,서광수,변두원,서명석,배성효,박종석,심규철,이성희 공주대학교 과학교육연구소 2001 과학교육연구 Vol.32 No.1

미래 사회를 대비하기 위한 개인의 개성을 존중과 창의적인 능력을 지닌 인간을 양성을 목적으로 충청남도 지역의 초 ㆍ 중고등학생들을 대상으로 한 창의력 경연대회가 공주대학교 과학교육연구소에서 개최되었다. 충청남도 초 ㆍ중 ㆍ 고등학생들을 대상으로 실시한 창의력 경연대회는 창조적 아이디어를 내어 스스로 문제를 해결해 나갈 수 있는 교육 프로그램을 제공하는 좋은 기회였음이 확인되었으나, 일부의 팀에서만 참신하고 재미있는 아이디어들이 제안되었다. 여학생의 참가자 수가 상당히 증가하였으며, 대체적으로 입상권의 학생들의 상당 부분이 여학생이라는 것이 특이할만하다. 학년이 올라감에 따라서 창의적인 아이디어를 내는 양이나 질에 있어서 뒤떨어지는 것으로 분석되었으며, 토론 학습의 적응력이 미흡하고 발표력 및 청취력에 있어서도 떨어지는 것으로 나타났다. 따라서 중 ㆍ고등학교의 학교교육에서도 학생들에게 프로젝트형 탐구학습 프로그램의 적용은 물론 토론식 수습을 통한 학생들의 사고의 전환의 기회를 제공해야 할 것으로 사료된다. The creativity competition was held to foster the creativity of elementary and secondary school students in the Institute of Science Education, Kongju national University. It was found that the creativity competition effected on the improvement of inventing creative ideas and problem solving activities. But, only some competitors participated in semifinal and final contests, presented original and interesting ideas. More female students participated in competition than last year. More female participants were awarded a prize than males. Totally, participants were defective in discussion and communication, and presentation and listening ideas. Increasing grades correlated inversely with creativity and originality. There is need of inquiry project teaming programs and presenting opportunities of conversion of thinking by discussing instructions in school