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장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4
Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.
박형욱,김용기,임동명,윤신의,최봉남 朝鮮大學校 附設 醫學硏究所 1992 The Medical Journal of Chosun University Vol.17 No.1
The authors observed the clinical findings of 99 cases of traumatic drum perforations, who visited the department of otolaryngology of Chosun University Hospital and KwangYang Hospital from January 1988 to August 1991 The results obtained were as follows; 1) As an etiologic factor, the indirect trauma occupies the most case (79.8%), out of which the most cases is by assault. 2) Age distribution indicates 30 decade(32.3%) and 20 decade(26.3%) in the declining order and sex distribution indicates male to female is 1;1.3. 3) On occupation, house wife is the most frequently involved (35.4%) and officials & students are in the next order. 4) Most common complaint is Hearing impairment and the next complaints are tinnitus, otalgia and hemorrhage in order. 5) The most frequent site of perforation is the central portion of anteroinferior and posteroinfehor quadrant, Gradel in size and triangular shape are common. 6) Seasonal variation indicates that the most frequent occurence of perforation is on summer. 7) Average 25-35㏈ of hearing loss is most common, and the degree of hearing loss is well correlated with the size of perforation. 8) Two way of therapeutic measure are compared. a. stimulating with trichloroacetic acid ; spontaneously healing in 22 cases (22.2%) b. closing procedure with paper patch ; healing in 68 cases (68.7%) 9)The overall healing time is within 2 months in the most of case (about 80%).
노동현,김도형,김나래,박종선,이창헌,김미경,최영식 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2
전격성 제1형 당뇨병은 특발성 당뇨병환자에서 임상 경과가 짧고 진단 당시 심각한 대사 합병증을 동반하면서 췌장 효소 수치가 높고 췌도 특이 자가항체가 음성인 새로운 아형으로 알려져 있으며, 일본과 일본 외에서의 유병률에는 차이가 있는 것으로 보인다. 아직 전격성 제1형 당뇨병의 발생 기전은 명확하지 않으며 유전적 감수성이 있는 개체에서 바이러스 감염 등의 환경적인 인자와의 연관성이 가능한 병태생리로 제시되고 있으며 이에 대한 추가적인 연구가 요구된다. 저자들은 케톤산증으로 내원하여 전격성 제1형 당뇨병을 진단받은 증례를 경험하였기에 문헌고찰과 함께 보고 하는 바이다. Some patients with idiopathic type 1 diabetes have a fulminant disorder characterized by the absence of insulitis and of diabetes-related antibodies, a remarkably abrupt onset and high serum pancreatic enzyme concentrations. This is referred to as fulminant type 1 diabetes. A 29-year-old man suffering from abdominal pain, nausea and vomiting consulted to our hospital. Laboratory findings revealed high blood glucose level and the evidence of diabetic ketoacidosis, but the serum HbA1c was normal nevertheless. The low level of plasma C-peptide indicated the loss of endogenous insulin secretion. The patient satisfied the criteria for the diagnosis of fulminant type 1 diabetes. After the patient has been treated with insulin, his symptoms were improved and abnormal laboratory data were normalized. We report this case with a review of the literature
정동원,김형종,최두선,제태진,박재현 濟州大學校 海洋硏究所 2004 해양과환경연구소 연구논문집 Vol.28 No.2
Sandwich sheets consisting of two or more different material layers are widely used in various industries due to the diversity of properties they Possess, such as high electrical conductivity. high corrosion resistivity. high strength. etc. The production of sandwich sheets by a rolling process. which is a more efficient and economical approach compared to other types of Processes. has become an increasingly important subject of study. In this study, the focus of the analysis is to evaluate stress and strain of the micro structure by the roll forming.
Metoclopramide가 휜쥐의 血壓에 미치는 影響
임동윤,최동준,김규형,최철희,박재윤,문재규,김문석,황두환 中央醫學社 1988 中央醫學 Vol.53 No.9
Influences of metocopramide (MCP), which is a seletive dopaminergic antagonist, on blood pressure of the rat and its mechanism of action were investigated in the present study. MCP administered into a femoral vein of the rat caused markedly a dose-related fall in blood pressure followed by secondary transient pressor response. The depressor action evoked by MCP was not blocked by pretreatment of atropine or chlorisondamine, while the pressor action was inhibited significantly. Prazosin treatment reduced markedly both of depressor and pressor induced by MCP. MCP-evoked pressor action was not affected by clonidine, but the depressor response was attenuated significantly. Debrisoquin treatment made the inhibited response to MCP-induced pressor response, while did not affect the depressor action. Both of pressor and depressor responses evoked by MCP were not influenced by cyproheptadine. The hypertensive activity induced by nor epinephrine was weakened markedly by the infusion of MCP (1.50 mg/kg/30min.), but the pressor action evoked by dopamine not affected. These experimental data suggest that MCP produces biphasic responses (depressor and pressor) in blood pressure of the rat, and that the hypotensive activity is due to adrenergic alpha-receptors blockade, and that pressor activity is exerted through stimulation of cholinergic nicotinic receptors in autonmic ganglia.
마이크로 사이즈 인출구경을 이용한 고휘도 이온빔 인출 시스템 개발
김윤재,박동희,정형설,황용석 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-
In order to develop a high brightness ion source using plasma, the ion beam extraction system with an aperture of 100μm in diameter has been designed and constructed. It is observed that over 500nA of He ion beam current can be extracted. With such an optimized condition, ~10³ A/cm²sr beam brightness can be measured by emittance scanner, which is believed to be a promising result for developing next generation FIB.
서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.