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Skin entrance dose for digital and film radiography in Korean dental schools
Cho, Eun-Sang,Choi, Kun-Ho,Kim, Min-Gyu,Lim, Hoi-Jeong,Yoon, Suk-Ja,,Kang, Byung-Cheol 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.4
Purpose : This study was aimed to compare skin entrance dose of digital radiography with that of film radiography and to show the dose reduction achievement with digital systems at 11 dental schools in Korea. Materials and Methods : Forty six intraoral radiographic systems in 11 dental schools were included in this study. Digital sensors were used in 33 systems and film was used in 13 systems. Researchers and the volunteer visited 11 dental schools in Korea. Researchers asked the radiologic technician (s) at each school to set the exposure parameters and aiming the x-ray tube for the periapical view of the mandibular molar of the volunteer. The skin entrance doses were measured at the same exposure parameters and distance by the technician for each system with a dosimeter (Multi-O-Meter : Unfors instruments, Billdal, Sweden). Results : The median dose was 491.2 μGy for digital radiography and 1,205.0 μGy for film radiography. The skin entrance dose digital radiography was significantly lower than that of film radiography (p<0.05). Conclusion : Fifty-nine percent skin entrance dose reduction with digital periapical radiography was achieved over the film radiography in Korean dental schools.
최태석,이동범,천영호,이근배 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4
Open-ended questionnaire was asked 135 girls senior high school fencing athletics. According to these collected and analyzed open-ended questionnaires, they give the following conclusions. Mostly, open-ended questionnaires showed girls senior high school fencing players practiced many images such as self-confidence, patience, tenacity, competition and a practice, and in an image frequency aspect, epee players showed more images than foil players. However, in image content, while epee players had a tendency of defense, foil players, in contrast, showed attack-oriented images. As our worldwide predominant fencing athletics train formally the deficient imagery discipline, it is very important to make the applicable program of imagery discipline.
야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로
조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6
Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.
조명숙,송근배,윤희숙 대구보건대학 1992 대구보건대학 論文集 Vol.13 No.-
The purpose of the present study was to determine the mercury in human scalp hair and urine from amalgam fillings, sixty-five subjects were examined their oral status, alginate impression were taken to make dental arch stone models and calculated their surface area of amalgam fillings. The 28 control subjects had no amalgam filling and 37 compare subjects had an average of 12 surfaces of amalgam. The morning urine and scalp hair were collected from all subjects and samples were digested in acid digestion bomb(Parr Instrument Company, U.S.A.) The mercury contents were determined with atomic absorption spectrophotometer(Model 551, IL Co., U.S.A.) and atomic vapor accessory (Model 440, IL Co., U.S.A.) . The results obtained were as follows ; 1. The urinary mercury contents of control group(no amalgam in oral cavity) were 2±10.0㎍/g. creatinine/L and compare group(amalgam filling) were 16.7±16.0㎍/g. creatinine/L(p<0.05). 2. The scalp hair mercury contents of amalgam filling group(3.29±1.03㎎/L) were slightly higher than those of the amalgam free group(3.04±1.11㎎/L) but not significant difference(p>0.05). 3. The linear correlation coefficient was 0.3490 and significantly different between mercury content of scalp hair and amalgam surface area(p<0.05), but had no significant difference between urinary mercury contents and amalgam surface area(r=0.0934, p>0.05).