1998년과 2007년 사이 12∼13세 남녀 청소년의 체격, 골격성숙도, 체력 비교

송종국(Jong Kook Song),채서연(Seo Yeon Chae),채주희(Joo Hee Chae),김현배(Hyun Bae Kim),강효정(Hyo Jung Kang) 한국사회체육학회 2008 한국사회체육학회지 Vol.0 No.34

The purpose of the present investigation was to compare physique, skeletal maturation and physical fitness in Korean adolescents measured between 1998 and 2007. Subjects participated in the study were a total of 473 Korean adolescents aged 12 to 13 years. In 1998, 349 adolescents were selected from a middle school, located in Sungnam city and 124 middle school students aged 12-13, located in Yongin city were participated in 2007. All measurements were conducted by one of the reseachers (Jong-Kook Song) with two different group of investigators between 1998 and 2007. Anthropometric characteristics were body mass, body height, sitting height, circumferences taken at sites of upper arm, flexed upper arm, chest, waist, hip, thigh, and calf, bone breadth taken at the sites of humerus, and femur, skinfold thicknesses taken at the sites of triceps, subscapular, suprailiac, thigh and medial calf. Skeletal maturity was assessed by TW3 (Tanner et al., 2001). Maturity scores for Radius-Ulna-Short bones (RUS) and bone age were calculated. Physical fitness parameters included flamingo balance, sit and reach, grip strength, sit-ups, standing long jump, bent arm hang, 50m shuttle run and multi-stage shuttle run. All data were analyzed by SAS Enterprise 3.0. Means and standard deviations were calculated by descriptive statistics. Independent t-test was applied to compare dependent variables between measurements. The level of significance was set at p<0.05. Results of the study showed that male adolescents aged 12-13years in 2007 had significantly higher (p<0.0001) femur diameter than adolescents in 1998. Male adolescents in 2007 had higher (p<0.05) chest, waist and calf circumferences than those of adolescents in 1998. Although no difference were found for RUS and bone age in males adolescents between 1998 and 2007 female adolescents in 2007 were significantly delayed for their skeletal maturity level compared to female adolescents in 1998. For physical fitness parameters male adolescents aged 12 years in 2007 performed better for flamingo balance (p<0.01), and 50m shuttle run (p<0.05) than those of adolescents in 1998. However, stand long jump and bent arm hang were significantly decreased in male adolescents in 2007. Female adolescents aged 12-13 years in 2007 had significantly higher flamingo balance, but female adolescents aged 12 years in 2007 performed significantly less for standing long jump (p<0.0001), bent arm hang (p<0.001) and speed (p<0.05) than those of female adolescents in 1998. In conclusions this study suggest that chest circumference for both male and female adolescents in 2007 was significantly higher than those in 1998. Skeletal maturity for female adolescents in 2007 were significantly delayed compared to female adolescents in 1998. Further study is needed to evaluate consistent various.

Hepatic Cirrhosis Occurring in a Young Woodchuck(Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus(WHV)

Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea

1995년도 대구지역 법의 부검 통계

채종민,이숙희,정민희,곽정식 大韓法醫學會 1996 대한법의학회지 Vol.20 No.1

This is a statistical observation by authors based on data of deaths brought to department of forensic medicine, Kyungpook National University School of Medicine for medicolegal autopsy by all of law enforcement agencies in Taegu area during the year of 1995. The report aims to reveal facts on various causes of death in Taegu area in attempt to analyse 205 cases statistically. The following are the summary of results ; 1. The total numbers of autopsy were 205 cases, of these 121 cases (58%) were males and 83 cases (40%) were females. 2. The violent deaths were 135 cases (66%) and the natural deaths were 63 cases (31%) and unknown cases were 7 (3%). 3. The percentage of autopsied cases with 30's age group was 28.2% (the most), 20's was 17.2%, 40's was 13.8%, 10's was 13.8%... in violent deaths. The percentage of autopsied cases with 30's age group was 31%, 40's was 20%, 20's was 20%, 50's was 15.5%...in natural deaths. 4. For the violent deaths, the percentage deaths due to injury was 52.9%, asphyxia was 29.8%, intoxication was 10.4% and abnormal temperature(hypothermia or fire) or electrocution was 6.7%. 5. For deaths due to injuries, the percentage of deaths due to blunt injury was 45.7%, sharp force injury was 29.5%, fall was 17.1%. and traffic accident was 7.1%. 6. For the natural deaths, 60 cases were recorded and the death due to the disese of the cardiocascular system was taking the most of the total percentage with 53%. 7. For deaths due to injuries, the percentage of accidental death was 57.3%, homicide was 22% and suicide was 14.7%. 8. 31 subjects (51.7%) of 128 violent deaths have positive blood alcohol concentrations (0.05% and above) , and 8.1% of natural deaths were associated with alcohol intake. 9. For deaths by medical dispute, 7 cases were recorded and deaths combined with operation were taking the most of the total percentage with 43%.

Fibrous Glass Board의 열전도도 측정

채희백,김종철 순천향대학교 기초과학연구소 1997 순천향자연과학연구 논문집 Vol.3 No.1

FIbrous glass board is widely used for the heat-insulation material. Thermal conductivity of these material is low. NIST prepared the cirtified reference material which is used for the comparison and verification of the apparatus for thermal conductivity measurements Guarded hot plate method is used to measure thermal conductivity and the results are compared with NIST data. Heat conduction path has three modes, such as through the fiber glass itself, air between the fiber and by radiation. The apparent thermal conductivity of fiber glass board 1450b is 3.5~4.2x10-2 W/m K in a temperature range from ambient to 345K. It's in agreement with NIST data within ±1.5%.

LSD 설계법을 이용한 합성보 설계의 경제성에 관한 연구

朴鍾圓,蔡淑熙 홍익대학교 산업기술연구소 2000 産業技術 Vol.10 No.-

Use of the Limit State Design may have an economy over the Allowable Stress Design especially in the design of composite beams. In this study, strength and serviceability limit states are checked using the two methods and the differences in the design methodologies are compared. The investigation shows that as spans increase, designs by the LSD method give lighter beam weights and require fewer shear connectors resulting in substantial savings in material costs.

자궁경부종양에서 Cathepsin-D 표현의 의의

이춘희,김세진,전상식,이택후,조영래,채종민 경북대학교 병원 1997 경북대학교병원의학연구소논문집 Vol.1 No.1

Various clinical and histopathologic characteristics are currently used to obtain prognostic information about cervical carcinoma, but they do not predict the outcome for any individual patients. Thus, there is a need to identify additional tumor characteristics that are able to predict more accurately the outcome for an individual patient with cervical cancer. In this study, we explored the relationship between cathepsin-D expression and progression of the cervical neoplasia, the correlation between response to neoadjuvant chemotherapy and cathepsin-D expression, and we investigated if tumor cell cathepsin-D expression could serve as a prognostic factor in cervical carcinoma. Tumor tissues were obtained from 14 patients with cervical intraepithelial neoplasia and 52 patients with squamous cell carcinoma of the cervix. Cathepsin-S expression was identified by immunohistochemical methods using monoclonal antibody cathepsin-D (BioGene). Positive cathepsin-D immunoreaction in greater than 30% of carcinoma cells was scored as high expression. High cathepsin-D expression was seen in 15 of 52 invasive cancer but was absent in cervical intraepithelial neoplasia. It was shown that cathepsin-D expression was independent of the rumor grade, tumor size, lymph node involvement, depth of invasion, parametrial invasion, and response to chemotherapy. In disease free survival analysis by log-rank test, cathepsin-D expression was not significantly associated with survival. These results show that cathepsin-D expression is not a clinically useful adjunct to assessment of prognosis in invasive squamous cell carcinoma of the cervix.

커패시터 공진전압을 이용한 하프 브릿지 고주파 인버터의 특성해석에 관한 연구

김동희,김도선,김종해,노채균 嶺南大學校 工業技術硏究所 1997 工業技術硏究所論文集 Vol.25 No.2

This paper presents operating characteristics of the main conversion considering half-bridge high frequency resonant inverter using capacitor Resonant voltage to the object of research. The analysis of the proposed circuit describes generally by using normalized parameter, and basic operating principle and driving characteristics have been evaluated as to switching frequency and load parameter. Several features are considered, this paper suggests some fundamental data for designing the main power conversion circuit. To prove rightfulness for characteristics analysis of proposed inverter, it is confirmed that this paper are nearly, equal to circuit analysis by comparison theoretical and experimental waveforms results of proposal inverter using Power-MOSFET of switching devices. In the future, design technique proposed in this paper can be applied to several areas such as induction heating, power supply of DC-DC converter, UPS etc.

우리나라 지역 직업성질환 감시체계의 현황과 전망

임종한,장성실,김성아,문재동,채창호,홍윤철,김수영,김진석,김영욱,한상환,이혜숙,원종욱,송동빈,하은희,강성규 대한산업의학회 2001 대한직업환경의학회지 Vol.13 No.2

기존의 특수건강진단과 작업환경측정을 통한 직업병 관리가 진폐증, 소음성난청 등의 소수 특정질환에 국한되고 실제 직업병 발생 규모 파악이나 신종 직업병의 발견에 한계를 보인다는 사실은 산업의학전문가들 사이에서도 공감을 이루고 있다. 미국과 영국 등에서의 직업성질환 감시체계에 대한 경험은 우리 나라의 직업성질환 감시체계 구축에도 새로운 자극제가 되면서, 1998년이후 인천, 대전, 여천, 구미, 부울경 지역에서 지역 직업성질환감시체계를 산업보건관리의 중요한 시스템으로 구축하려는 노력이 확산되고 있다. 새로이 구축되어지는 이들 지역 직업성질환 감시체계는 감시하고자 하는 대상질환, 활용 가능한 인적자원 및 자료원, 지역 의료체계의 특수성 등에 따라서 목적과 방법을 달리하면서 독특한 형태로 발전을 하고 있다. 각 지역단위 감시체계들이 그 상황에 맞게 독특한 목적과 전략들을 발전 시키면서도, 향후 발전할 국가적인 차원의 직업성질환 감시체계 구축을 위하여 직업성질환 감시의 기본 전략 등을 공유하는 등의 노력이 필요하다. 환례 정의 및 기본적인 등록 서식의 공유, 직업성질환 감시 자료원의 발굴, 공동의 정보 네트워크 및 직업성질환 감시 데이터베이스 구축 등 직업성질환 감시활동을 지원하기 위한 여러 기초 인프라 구축에 힘을 모아야 할 것이다. 우리 나라에서 직업성질환 감시체계를 성공적으로 구축하기 위해서는 수집된 자료의 질 관리를 위한 직업성질환 감시의 원칙 제정과 감시 전략의 공유 등이 필요하며, 전국적인 직업성질환 감시체계의 하부구조라고 할 수 있는 지역감시체계의 기초 토대 마련과 강화작업이 절실하게 필요하다.

소아에서의 Nd : YAG Laser를 이용한 치은착색제거술 YAG Laser in children

모경희,박헌동,박종휘,김효석,정현구,설재헌,이병채 조선대학교 구강생물학연구소 2003 口腔生物學硏究 Vol.27 No.1

Melanin is normally found in the skin of all people, and normal pigmentation of the intraoral tissues is a relative frequent finding. Gingival hyperpigmentation may cause esthetic problems and embarrassment, especially in patients with a gummy smile. Melanin pigmentation is related to etiologic factor such as hormon, systemic factor, drug, smoking and gingival inflamation. Depigmentation procedure can be Performed by gingival epithelium removing procedure, gingivectomy, free gingival graft, laser therapy, dry ice, Vitamin C and phenol-alcohol method. We could obtain favorable esthetic results by procedures such as Nd: YAG laser. The Nd:YAG laser was set at 4 watt, 50mJ, 80 pulse per second. The procedures were performed with contact mode in all pigmented areas by using a handpiece with a 320㎛ diameter fiber optic. Ablation of the gingival hyperpigmented gingiva appeared healthy, pink, and firm. No recurrence of hyperpigmentation had been found in 6 months of follow-up.

톨루엔을 포함한 유기용제의 직업적 폭로로 인한 신경내분비계 영향

이채언,이종태,정의화,손혜숙,문덕환,전진호,강정학,이창희,김휘동,김종한,정귀옥 大韓産業醫學會 1995 대한직업환경의학회지 Vol.7 No.2

Long term occupational exposure to solvent mixtures may cause adverse effects to the central nervous system with neurobehavioral symptoms. And some organic slovents have been suggested to cause impairment of tuberoinfundibular dopaminergic activity and neurochemical mechanisms controlling pituitary secretion. For the purpose of assessing neuroendocrine effects in occupational solvents exposure, hormonal study settings (shoes-manufacturing industry & fishing products industry) and compared with nonexposed controls(33 men, 85 women). Male workers exposed to solvent mixtures had significantly lower plasma level of follicle-stimulating hormone(FSH) than nonexposed male controls. While female workers exposed to solvent mixtures had significantly lower plasma levels of growth hormone(GH), and thyroid-stimulating hormone(TSH) than nonexposed female controls. The results of significant decrease in plasma concentrations of pituitary hormones(FSH, GH, and TSH) in workers exposed solvent mixtures indicate that occupational exposure to solvent mixtures may induce neuroendocrine effects through an effect on hypothalamic pituitary axis.