악안면 골격 형태에 따른 교합평면각의 변화에 관한 두부 방사선학적 연구

오세윤,김웅철,김지환,이준석,김진완,유진호,김태석 高麗大學校 倂設 保健大學 保健科學硏究所 1999 保健科學論集 Vol.25 No.1

A correlation analysis was made to understand the interaction between the growth patterns of some craniofacial skeletal components and occlusal plane inclination. 5 angular measurements(S.a. Ar.a, Go.a, UGo.a, LGo.a), 6 linear measurements(ACBL, PCBL, RH. MBL. AFH. PFH) and OP/SN. obtained from 83 cephalometric tracing records, were selected and the relationship between the occlusal plane angle and those measurements were analyzed statistically. Ramus Height(r=-0.55), Posterior Facial Height(r=-0.41), were found to be negatively related with Occlusal Plane angle, while Lower Gonial angle(r= 0.35), Saddle angle(r= 0.24) were found to be positively related with Occlusal Plane angle(p(0.05). The results obtained from the above analysis were further assessed with stepwise regression analysis, using Occlusal Plane angle as a dependant variable, and RH, LGo.a and S.a as explanatory variables. Stepwise regression analysis revealed that all the explanatory variables were found to be significant.(p<0.05) [OP/SN] = -8.74-0.33(RH)+0.23(S.a)+0.20(LGo.a). (R²=0.44). This stepwise regression analysis explains, to some extent, the relationship between the growth patterns of some craniofacial skeletal components and the occlusal plane inclination. 1. The inclination of Occlusal Plane angle is noticeably related with the growth patterns of some craniofacial skeletal components, i.e. RH, PFH, Saddle angle and Lower Gonial angle 2. In high Occlusal Plane angle, the Ram us Height tends to be shorter, and the Saddle angle and Lower Gonial angle tend to be obtuse.

Eagle씨 증후군의 치험례

오승환,이상철,윤옥병,지유진,김여갑,류동목 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3

Eagle's syndrome is the term given to symtomatic elogation of the styloid process or mineralization of the stylohyoid or stylomandibular ligament. Since ossification of stylohyoid ligament at cadeva was fist described by De Manchetics in 1652 and Weinlecher described clinical symptom which produced by elongated styloid process and osteotomy of styloid process in 1872, Clinical symptom which include sensation of a foreign body on the pharynx, dysphagai, dysphonia, referred pain, and mouth opening disturbance was termed by Eagle as Eagle's syndrome. then, case reports of Eagle's syndrome are presented. in these cases, the patient's chief complaints included periauricular radiating pain, mouth opening disturbance, foreign body sensation, dysphagia, tenderness on the neck. Through vairous X-ray examination and palpation of tonsillar fossa, elongted styloid process were confirmed. Under the general anesthesia there were successfully removed out via transoral approach technique, described by Eagle. after resented styloid process, they were freed from the symptoms without further complication. Therefor we reported these cases treated by surgical resection of styloid process with good results.

폭약 HMX-분해 세균인 Pseudomonas plecoglossida HK-5의 분리 및 세포 반응

김유진,오계헌 순천향대학교 기초과학연구소 2021 순천향자연과학연구 논문집 Vol.27 No.1.2

Soil samples were collected from explosive manufacturing plant sites and used for enrichment of microbial consortia with HMX (1,3,5,7-tetranitro-1,3,5,7-tetrazocane) under aerobic and nitrogen-limiting conditions. Among five isolates from microbial consortia using HMX as substrate for growth, an isolate HK-5 which has good HMX degradability was selected for this work. Both BIOLOG system and 16S rRNA sequencing were conducted to identify the strain, which was assigned to Pseudomonas plecoglossida HK-5. Complete degradation of 75 µM HMX was achieved after 50 days of incubation. Analysis of SDS-PAGE and Western blot revealed that stress shock proteins, DnaK and GroEL, specifically reacting with anti-DnaK and anti-GroEL monoclonal antibodies were produced when cells were treated with HMX. Scanning electron microscopic analysis demonstrated the presence of cells with wrinkled surfaces containing perforations and irregular rod-shaped forms after exposure to HMX.

갓김치에서 분리한 캡사이신-내성 세균,Leuconostoc mesenteroides GK-10의 생리활성

김유진,나예린,이현호,오계헌 순천향대학교 기초과학연구소 2021 순천향자연과학연구 논문집 Vol.27 No.1.2

The aim of this work was to investigate the physiological activities of capsaicin-resistant bacterium, Leuconostoc mesenteroides GK-10 isolated from fully fermented mustard leaf kimchi. Initially, the morphological, physiological and biochemical characteristics of strain GK-10 were examined. Based on phylogenetic analysis using 16S rRNA sequencing, the isolate was identified as L. mesenteroides GK-10 and phylogenetic tree of the strain was plotted. L. mesenteroides GK-10 grew well in the different concentrations of capsaicin (0-600 μg/mL). Various physiological activities (e.g., tyrosinase inhibitory activity, ACE inhibitory activity, antioxidant activity, SOD-like activity, depletion of sodium nitrite) of L. mesenteroides GK-10 cultures with different concentrations of capsaicin were evaluated and compared to the cultures of L. mesenteroides DK-3 as a standard strain. According to the results, all of the physiological activities evaluated in this work were considerably higher in L. mesenteroides GK-10 cultures with 600 μg/mL capsaicin compared to L. mesenteroides DK-3 cultures with the same capsaicin concentration, although the physiological activities of GK-10 were higher or lower compared to those of DK-3 in the absence of capsaicin. In consequence, this work showed that L. mesenteroides GK-10 strains can maintain their physiological activities despite the presence of high concentrations of capsaicin.

원화환율의 장기구매력평가에 관한 실증분석 : 부호검정법 Sign Unit Root Test

吳有珍,朴炳旭 한국국제경제학회 2004 국제경제연구 Vol.10 No.2

구매력평가관계의 성립의 여부는 국제금융이론에서 중요한 관심대상 중의 하나이다. 대표적인 실증분석 방법으로는 Dickey-Fuller류의 단위근 검정법을 사용해서 실질환율을 분석하는 것이다. 이런 검정법들은 낮은 검정력(power)과 최소자승법(Least squares method)에 기반하기 때문에 이상치(outlier)에 민감하다는 단점을 가지고 있다. 본 연구에서는 이런 단점을 보완하기 위하여 새로운 부호검정법(sign test)을 도입하였다. 부호검정법은 이상치와 정규가정을 만족하지 않는 자료의 경우에도 사용가능하도록 조건을 완화하여 낮은 검정력(power)을 향상시킨다. 본고에서는 미국, 영국, 독일, 캐나다, 그리고 일본 등 우리나라 주요 교역국들의 실증자료로 부호검정법과 기존의 Dickey-Fuller 검정의 결과를 비교분석 하였다. 분석기간은 외환위기 이후까지 포함한 전체 기간과 외환위기 이전까지의 기간으로 나누어서 검정을 시도하였으며, 분석결과 한국은 어느 국가와도 구매력평가관계가 성립되지 않았다. Purchasing power parity(PPP) is of interest in international finance literatures. The most popular method for testing PPP is the Dickey-Fuller(DF) test based on the ordinary least squares estimator(OLSE). The OLSE-based unit root tests, however, suffer from size distortion and power loss. We use a new sign unit root test which has simple exact null distribution and is robust to possible outliers from heavy-tailed errors. We also investigate whether PPP holds between Korea won and other currencies of important trade countries such as United States, the United Kingdom, Germany, Canada, and Japan by testing for unit roots in real exchange rates. We use Korean won as the base currency.

Chromium picolinate가 고지방, 고설탕 식이를 섭취한 흰쥐의 체내 포도당, 지질 농도에 미치는 영향

오유진,진윤경,장유경 漢陽大學校 韓國生活科學硏究所 2001 韓國 生活 科學 硏究 Vol.- No.19

This study was carried out to investigate the effect of chromium picolinate supplementation on the metabolism of rats. Male Sprague-Dawley rats were divided into 3 groups and each group had 16 rats. Three experimental diets of CT(control), HS(high sucrose) and HF(high fat) were fed for 10 weeks and then chromium picolinate were supplemented to HS and HF groups for 6 weeks. Eight rats from each group were sacrificed after 10 weeks and another 8 rats from each group were sacrificed after 16 weeks. The results from this experiment were summarized as follows: The change of calorie intake and body weight was not significantly different among three groups after chromium picolinate supplementation. The plasma glucose and insulin concentration in CT group tended to increase after 16 weeks but those in HS and HF groups tended to decrease after chromium picolinate supplementation. The plasma triglyceride and cholesterol concentration of CT group tended to be higher than those of HS and HF groups which were supplemented by chromium picolinate. Our results indicate that chromium picolinate tend to reduce blood glucose, insulin, triglyceride, and cholesterol level but increase HDL-cholesterol level.

렌즈의 자동초점 구동을 위한 리니어 초음파 모터

김유민, 이한주, 오진헌, 임기조 충북대학교 컴퓨터정보통신연구소 2012 컴퓨터정보통신연구 Vol.20 No.1

In this paper, a novel type ultrasonic linear motor is proposed. The proposed motor consists of a ring type stator and a mover. They have spirals on their inner and outer surface, respectively. Along the spiral, a mover is travelled by a travelling extensional vibration mode of a ring type stator. Hence, a linear up-and-down motion is possible. Through the experimental results, we can verify the applicability regarding the autofocus lens driver. keywords : Ultrasonic linear motor, Autofocusing driver, ring type stator

면접조사를 통한 초등학생의 영양교육 실태 및 실천도 조사

오유진,이영미,김정현,안홍석,김정원,박혜련,서정숙,김경원,권오란,박혜경,이은주,성현이 대한지역사회영양학회 2008 대한지역사회영양학회지 Vol.13 No.4

This study investigated the experience and practice of elementary school students on nutrition education. The data were collected from 217 male and female students attending 5-6th grade elementary schools in Seoul and Kyunggi-Do from March to June 2007, interviewing face to face by a nutrition teacher and 3 interns of a nutrition teacher. The results were as follows: 86.5% of the subjects learned about ‘Table etiquette’, ‘Reasons for eating fruits and vegetables’ (78.7%), ‘Food waste and environment’ (72.3%), ‘Healthy snacks’ (55.7%), ‘Food sanitation’ (52.3%), ‘Food culture of foreign countries’ (48.1%). Nutrition education experience was significantly different by gender. A total of 43.5% boys responded that they never learned about ‘basic food preperation’ (p < 0.01). They had learned ‘Nutrients for body’ and ‘Food waste and environment’ in school, ‘Healthy weight loss’, ‘Food culture of foreign countries’, ‘Food circulation’ on television, Most content (‘Table etiquette’, ‘Simple cooking’, ‘Food sanitati n’, ‘Eating behaviors for health’, ‘Reasons for eating fruits and vegetables’, ‘Healthy snacks’) was learned from parents. The practice after nutrition education was higher in ‘Table etiquette’ (2.14), ‘Eating fruits and vegetables’ (2.07) than others compared with education experience. The most reason of non-practice on nutrition information was ‘Troublesome’. In ‘Nutrients for body’, a boy answered ‘Difficult for practice’ 20.0%, a girl answered ‘Difficult to understand’ 32.6%, showing a significant difference between the gender groups (p < 0.001). They remembered the ‘Nutrients for body’ (49.6%), ‘Food sanitation’ (44.5%) because of ‘important content’,‘Basic food preparation’ (40.6%), ‘Food culture of foreign countries’ (36.3%) because of ‘interesting content’, ‘Healthy weight loss’ (52.0%), ‘Eating behavior for health’ (44.5%) and ‘Healthy snacks’ (33.7%) because of ‘need for my health’.

고령화 사회를 위한 노인의 영양서비스 요구도 조사

오유진;장유경;원선임;서종려 한양대학교 2005 韓國 生活 科學 硏究 Vol.25 No.1

The survey conducted by individual interviews. Subjects were adults aged 60 and over, recruited from three elderly schools in N city in Kyung-gi province(n=95). In the survey, subjects were interviewed for general characteristics, interesting nutrition topics, preferred methods of nutrition service. Subjects were interested in topics such as ‘anything about nutrition’(41%), ‘healthy eating’(31%), ‘diet with taking medicine’(17%), and ‘nutrition counseling’(12%). As methods of nutrition service, Subjects wanted primarily to use lectures in school(27%). Nutrition education program(29%), booklets(25%) were other commonly cited methods. These results provide baseline information for developing nutrition service and methods for elderly.

일부 인쇄회로기판 납땜근로자들의 눈, 호흡기, 피부의 증상에 대한 조사연구

유재영,우극현,김진석,함정오,최태성,하봉구,정상재,박신구,김일룡 大韓産業醫學會 2001 대한직업환경의학회지 Vol.13 No.4

목적 : 이 연구는 납점작업자를 대상으로 납점작업으로 유발될 가능성이 높은 눈, 호흡기, 피부 등의 증상호소율 및 노출강도에 따른 관련성을 파악하기위해 수행되었다. 방법 : 연구참가자 146명중 연구목적에 적합한 20명을 제외한 126명을 대상으로 '눈이 가렵고 충혈됨', '코가 가렵거나 파가움', '재채기', '콧물'. '코막힘' , '목이 따끔거림' , '목에 무언가가 걸려있는것 같음' , '갑자기 연속적인 기침을 함' , '운동 시에 다른 사람에 비해 숨이 가쁨', '숨을 쉴 때 쌕쌕하는 소리가 남', '가래가 끓음', '손이나 안면에 가려움을 느낌' , '안면에 여드름이 날' '손이나 안면에 붉은 반점이 남' 등 14가지 증상에 대한 경험유무와 혈중연농도, 납점작업의 건강위험요인에 대한 지식상태 등을 조사하였다. 결과 : 조사된 14가지의 증상 중, '갑자기 연속적인 기침을 함'이 하루 납점시간 4시간 이상인 군아서 4시간 미만인 군보다 유의하게 증상호소율이 높았으며, 다른 증상의 경우 하루 납땜시간에 따라 유의한 결과를 보이지 않았다. 납땜작업의 건강위험요인에 대한 질문에 12.8 %가 플럭스에 의한 건강위험을 지적하였다. 전체 대상자의 평균 혈중연농도는6.05 rg/dL였으며, 히고치는 15.50 rg/dL이었다.결론 : 납땜작업자에게 호흡기 증상의 위험이 높을 가능성이 있으며, 납땜작업의 건강위험에 대한추가적인 연구와 납점작업자들을 대상으로 납점작업에 의해 유발될 수 있는 건강장해에 대한 적극적인교육 및 홍보활동을 필요로 한다. Objectives : This study was conducted to evaluate the prevalence of ocular, respiratory and skin symptoms among solderers and to investigate the relationship between symptom prevalence and exposure intensity. Methods : We analyzed 126 eligible participants out of a population of 146 male solder-ers who completed the symptom questionnaires. Fourteen symptoms including 'itchy and red eyes', 'itchy or prickly nose', 'sneezing', 'rhinorrhea', 'blocked nose', 'prickly throat', 'foreign body sensation in throat', 'sudden bouts of coughing', 'exertional breathlessness', 'wheezing', 'sputum production', 'itchy face or hands', 'acneiform erup-tions on the face' and 'red spots on the face or hands' were contained. Blood lead levels of all the 126 participants were tested and the participants' own assessments of the health risk of soldering were collected. Results : Of the 14 investigated symptoms, 'sudden bouts of coughing' was significantly more prevalent in solderers who worked 4 hours or more a day than those who worked less than 4 hours a day, as for the other symptoms, there were no significant differences in the prevalences related to daily soldering hours. 2.8% of the solderers considered the risk of flux exposure to be serious. The mean blood lead bevel was 6.05 μg/dL (maximum 15.50 μg/dL). Conclusions : Soldering may increase the risk of respiratory symptoms. Further invert tigations on the hazards of soldering processes are warranted and solderers should be educarted on these hazards.