한국인 6-17세 아동의 성장과 발육에 관한 준종단적 연구 : 제 2 세부과제 : 두개 및 안면 연조직의 성장변화 Part Ⅱ : Growth Change of Craniofacial Soft Tissue

박영철,이기준,이장열,한희경 대한치과교정학회 1996 대한치과교정학회지 Vol.26 No.4

현대의 교정치료에 있어 치열궁의 문제뿐 아니라 안모에 관한 비중이 높아지고 있고, 특히 안모형태를 결정하는 연조직의 중요성이 부각되고 있다. 과거의 교정학 발달을 살펴볼 때 두부방사선 계측사진을 통한 경조직성장에 관한 연구는 많이 이루어 졌으나 연조직 성장변화에 관한 연구는 아직 미비하다고 볼 수 있다. 특히 국내에서의 이러한 연구는 연구대상자 수와 분석방법, 계측방법에 있어서 상당한 다양성을 보이고, 성장변화에 대한 연구는 태부족한 현실이다. 이에 본 연구는 남, 녀 6세에서 17세 사이의 악안면 성장과 발육에 관한 조 종단적 연구의 일부로 시행되었으며 3년간에 걸쳐 전신질환이 없고 발육상태가 양호하며 정상교합을 갖는 6-17세의 남자 409명과 여자 436명의 아동을 대상으로 하였다. 이들 아동의 성장에 따른 안면부 연조직의 변화양상을 연구하기 위해 두개안면계측사진을 촬영하여 안모의 형태, 입술의 위치 및 형태, 코의 형태 그리고 입술의 두께 등을 계측한 후 연령별, 성별 평균과 표준편차를 구하고 도표로 표시하여 다음과 같은 결론을 얻었다. 결론 1. 일반적으로 안모의 형태(facial form)는 여자에서보다 남자에서 더 장기간 성장이 지속되었으며 안면의 상부에 비하여 안면 하부구조의 길이가 더욱 큰 증가율을 보였다. 2. 상순과 하순의 두께는 연령의 증가에 따라 큰 변화가 없었으나, 서양아동에 비하여 돌출된 입술의 양상을 보였다. 3. 코의 수평방향으로의 길이는 연령의 증가와 함께 증가하였다. 4. 하안면부의 수평적인 두께는 연령에 따라 증가하였으며 상순의 비저부위의 두께[A-Sn(FH)]의 성장이 다른 부위에 비하여 크게 증가하였다. Along with traditional goal of 'straightening teeth', today`s orthodontics put more and more emphasis on facial esthetics. Naturally, the importance of soft tissue, which dictates one`s facial form, is noticed. There have been many cephalometric studies on growth of hard tissue; however, only a few on that of soft tissue. In Korea, various methods of sampling, measuring and analysing were used to study soft tissue changes, and yet, soft tissue changes along with process of normal growth have not been studied. The author carried out this study as a part of semi-longitudinal study on craniofacial growth and development of Korean children from ages of six to seventeen. 409 boys and 436 girls who`d had no systemic disease for the last three years and shown normal developmental and occlusal status were chosen as subjects. Cephalometric X-rays were taken of each subject, and facial form, lip position & form, nose form, and lip thickness were measured. Mean values and standard deviations were calculated according to age and gender, and figures and tables were drawn accordingly. The following results were obtained: 1. In respect to facial form, boys showed growth for longer period compared to girls. Also, lower face showed higher growth rate than upper face. 2. There was not much change in thickness of upper and lower lips with age; however, they appeared more prominent compared to caucasian children. 3. Nose grew horizontally with age. 4. Horizontal thickness of lower face increased with age, and upper lip thickness at nose base[A-Sn(FH)] showed more growth than anywhere else.

Characterization of Cement Solidification for Enhancement of Cesium Leaching Resistance

Gi Yong Kim,Won-Hyuk Jang,Sung-Chan Jang,Junhyuck Im,Dae Seok Hong,Chel Gyo Seo,Jong Sik Shon 한국방사성폐기물학회 2018 방사성폐기물학회지 Vol.16 No.2

Currently, the Korea Atomic Energy Research Institute (KAERI) is planning to build the Ki-Jang Research Reactor (KJRR) in Ki-Jang, Busan. It is important to safely dispose of low-level radioactive waste from the operation of the reactor. The most efficient way to treat radioactive waste is cement solidification. For a radioactive waste disposal facility, cement solidification is performed based on specific waste acceptance criteria such as compressive strength, free-standing water, immersion and leaching tests. Above all, the leaching test is important to final disposal. The leakage of radioactive waste such as 137Cs causes not only regional problems but also serious global ones. The cement solidification method is simple, and cheaper than other solidification methods, but has a lower leaching resistance. Thus, this study was focused on the development of cement solidification for an enhancement of cesium leaching resistance. We used Zeolite and Loess to improve the cesium leaching resistance of KJRR cement solidification containing simulated KJRR liquid waste. Based on an SEM-EDS spectrum analysis, we confirmed that Zeolite and Loess successfully isolated KJRR cement solidification. A leaching test was carried out according to the ANS 16.1 test method. The ANS 16.1 test is performed to analyze cesium ion concentration in leachate of KJRR cement for 90 days. Thus, a leaching test was carried out using simulated KJRR liquid waste containing 3000 mg·L-1 of cesium for 90 days. KJRR cement solidification with Zeolite and Loess led to cesium leaching resistance values that were 27.90% and 21.08% higher than the control values. In addition, in several tests such as free-standing water, compressive strength, immersion, and leaching tests, all KJRR cement solidification met the waste acceptance or satisfied the waste acceptance criteria for final disposal.

손 기능 강화 훈련이 손의 기민성과 장악력에 미치는 영향

장철 ( Chel Jang ),박성호 ( Sungho Park ),김경희 ( Kyunghee Kim ),김민제 ( Minje Kim ),이제영 ( Jeyoung Lee ) 대한통합의학회 2016 대한통합의학회지 Vol.4 No.2

Purpose : The purpose of this study was to explore an effect exerted to non-affected hand and affected hand of patients by performing training of chopsticks and grasp strength that are helpful to dexterity and grasp strength of hand together with training method of joint exercise, muscle strength build-up training, delicate hand function training. Method : By targeting 30 normal adult male/females engaged in K university, Busan for one month on April, 2015, 10 persons of hand function build-up training group, that of dexterity training group and 10 persons of control group were randomly selected. For hand function build-up training group, chopsticks training in parallel with total 20 times of grasp strength training for 4 weeks including 5 minutes of dominant hand grasp strength training, 5 minutes of non-dominant hand grasp strength training, 15 minutes of chopsticks training was performed based on 25 minutes/one time, 5 times a week. Result : First, In a comparison of dexterity of both hands by each group depending on training period, hand function build-up group and dexterity training group were represented to be effective compared with control group. Secondly, In a comparison of manipulatory ability of both hands by each group depending on training period, hand function build-up group and dexterity training group were represented to be effective compared with control group. Conclusion : It is considered that diversified and broad research covering patients with musculoskeletal disease and nervous system-related disease would be performed by securing far more test subjects after comparing a correlation between dexterity training and hand function training.

과제수행을 통한 비우세손 훈련이 손 기능에 미치는 영향

장철 ( Chel Jang ),송민옥 ( Minok Ot Song ),김보아 ( Bo A Kim ),한수정 ( Su Jung Han ) 대한통합의학회 2015 대한통합의학회지 Vol.3 No.4

Purpose : We described how the training of non-dominant hand that applicates the activity effects on dominant hand. Method : From November 6th to December 2nd 2013, We randomly selected 18 people that don’t have a damage of hand function and are in college of K in Busan. (cross stitch training group 9 people, control group 9 people) All participants agreed on the research after fully being aware of training procedures and spontaneously conducted. Each training was practiced for 40 minutes in once every second day. One researcher deals with three participants at silent environment. We used the study measurement, Purdue pegboard, to investigate the sharpness of hand. To investigate the advancement of hand function caused by cross stitch training, we practiced three times estimations of primary one before training, middle one after 2 weeks training, last one after four weeks training and obtained the following results. Result : First of all, We found that the group of hand training appeared to be advanced of dominant hand’s sharpness depending on the training period more than the control group. Second, We found that the group of hand training appeared to be advanced of non-dominant hand’s sharpness depending on the training period more than the control group. Third, We found that the group of hand training appeared to be advanced of both hand’s sharpness depending on the training period more than the control group. Fourth, We found that the group of hand training appeared to be advanced of the assembling function sharpness depending on the training period more than the control group. Conclusion : Put the results of this research together, we found that non-dominant hand training that used the activity was of help to advance the function of dominant hand. So, we thinks that hand training might help the recovery of affected hand function to the person that have a problem of hand function like hemiplegia patient. It will be required to practice the further study targeting the person that have a problem of hand function like hemiplegia patient. We hope that this research will be apply to clinical occupational therapy.

수공예활동이 자아존중감과 공감지수에 미치는 영향

장철 ( Jang Chel ),김은지 ( Kim Eunji ),김영이 ( Kim Youngyi ) 대한통합의학회 2018 대한통합의학회지 Vol.6 No.2

Purpose : In this research, I tried to examine the effect of handwork activities through group activities on self-esteem and sympathy index. Method : In this research, for men and women enrolled in K university, we explain sufficiently the purpose and method of research and randomly assign to 20 training group and 20 control group for those who agreed with experiment we divided handwork activities twice a week from november 18, 2016 to December 6, six times in total for 30 minutes. Results : Compared with self-esteem among groups, group training exercises showed higher interpersonal relationships than control group, and self-accepted items and self-efficacy items decreased. empathy comparison that group fits according to arbitration period compared with group control training group, group of training exercise high emotional sympathy items and social skills items appear high, cognitive sympathy items are low. Conclusion : From the results of this study, it turned out that the activities of handwork by group improved interpersonal relationships, emotional sympathy and social skills. In light of the results of these studies, it can be considered that better results can be obtained when applied to children and young people who are forming self-esteem and cognitive sympathy. In future research, further studies based on age, sex and further research corresponding to each situation, student's self esteem and a broader material for developing program necessary for cognitive sympathy can be obtained.

작업치료과 학생의 장애인에 대한 태도와 행동에 관한 연구

장철 ( Chel Jang ),신현석 ( Hyun Suk Shin ) 대한물리의학회 2013 대한물리의학회지 Vol.8 No.3

PURPOSE: The purpose of this research is to check the attitudes and behavior toward the disabilities of occupational therapy students who are going to be the future subjects of medical rehabilitation service, based on this to provide occupational therapy students an alternative to have the right attitude toward the disabilities to find ways to reduce prejudice against them in society meeting in the future. METHODS: The survey was carried out to select randomly 6 cities and provinces nationwide with occupational therapy, to choose 20 students at each grade and have them to fill up the questionnaire themselves after reading the text, and as a result of the survey. RESULTS: The attitudes and behavior toward the disabilities according to the gender, there was more positive significant difference in women than men, the attitudes and behavior toward the disabilities by each grade, the higher grade they were, the more positive significant difference they had. As the results of the attitudes and behavior toward the disabilities whether to take classes related to them, there was a positive significant difference in the students who took classes related to disabilities person, and the results of the attitudes and behavior toward the disabilities whether to participate in a clinical practice and voluntary service, there was a positive significant difference in the students who took part in that service. CONCLUSION: The positive attitudes and behavior toward disabilities were higher in women than men, higher grade students than the lower, the more time for voluntary service and the more contact with disabilities persons. As through the results of this, the comprehensive and continuous education about the disabilities for the students in all Departments related to medical rehabilitation service and the suggestion for continuous research on the fundamental problems should be made in the future.

음악청취가 학업스트레스와 우울증에 미치는 영향

장철 ( Jang Chel ),신현석 ( Shin Hyunsuk ) 대한통합의학회 2016 대한통합의학회지 Vol.4 No.3

Purpose : The purpose of this study was to conduct a music listening program and investigate its effects on depression and academic stress. Method : 30 male and female at K university located in Busan Metropolitan City were selected as subject of this study and a half of them was experimental group, other were control group. An academic stress tester formed by modifying and supplementing sentences and vocabularies of the questionnaire developed by Oh, Mi Hyang and Cheon, Seong Mun (1994) to help understanding of students was used with Beck Depression Inventory (BDI) by Beck(1967), both before and after conductance of music listening program. Result : First of all, In the Academic stress was no difference between each group and there was no difference in effect according to the comparison period. Second, Score of depression in Experimental group was decreased after application of music listening program than control group``s. Third, Score of depression in Experimental group was lower than control group``s, depending on period. Conclusion : Put the results of this research together, music listening program dosen``t affect the academic stress. But this program deceased the depression. In further study, it will be required to subdivided for academic stress and depression study from evaluation of the several times and apply a variety of diseases.

운동프로그램이 만성요통 환자의 통증에 미치는 효과

장철 ( Chel Jang ),이건철 ( Geon Cheol Lee ),이대희 ( Dae Hee Lee ),정현성 ( Hyun Sung Jung ),김인섭 ( In Seop Kim ),배성수 ( Sung Soo Bae ) 대한물리의학회 2007 대한물리의학회지 Vol.2 No.1

765㎸ 초기가압 운전계통에서의 안정도 검토 (pp.96-98)

장경철(Jang Kyoung-Chel),곽노홍(Kwak No-Hong),박정호(Park Jeong-Ho),김태옥(Kim Tai-Ok) 대한전기학회 2002 대한전기학회 학술대회 논문집 Vol.2002 No.7

학습동기가 시험 스트레스와 스트레스 대처 양식에 미치는 영향

장철 ( Chel Jang ),이은혜 ( Eunhye Lee ),천진수 ( Jisu Cheon ) 대한통합의학회 2014 대한통합의학회지 Vol.2 No.2

Purpose : In this study, we selected three research subjects to attempt to clear learning motivation of college students is what impact the stress coping style and stress test. First, age, gender, the future career after graduation, the presence or absence of part-time job is, its impact on learning motivation. Second, learning motivation is what effect the stress of the test. Third,based on the motivation of learning, how deal pursuing efforts form the social support, the center of the problem-solving approach, seeking to avoid the reaction to stress how different form. Methods : K University occupational therapy and one, two, three grade 100 students (male 22 people, female 78) to target age, sex, and after graduation, part-time status, motivation, stress, stress coping style questionnaire for distribution and was written. Results : First of all, women``s social support form graduation course, more robust than pursue blank after the synchronization uncertainty and stress, and graduated from the trading center and avoid the use of career, more form. Second, motivation and stress test, a difference between the notice could not see. Third, the higher the motivation of learning, problem-solving, Action form to the center to use as many as you, but avoid using too much in the center form is addressed. Conclusion : As a result of the study that came out of the course after graduating from ensure that learning motivation is high, the more the uncertainty, the more to cope with stress in the center of the form to avoid form address was used. Because of this, the student careers after graduation, to make sure that can help you to compare efforts over is believed to be necessary.