한국인 직무 스트레스 측정도구의 개발 및 표준화

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.

소음 측정을 통한 에어컨 실내기 자기음 검출 및 진단

지효근,정호제,김정현 경성대학교 공학기술연구소 2012 공학기술연구지 Vol.18 No.-

This paper presents the detection and diagnosis of air-conditioner electromagnetic sound through noise measurements. Electromagnetic sound originating from the motor is an unpleasant source of unwanted noise that should be detected at the manufacturing stage. A detection system using sound measurements was built and a detection algorithm based on FFT analysis is presented. Soun measurements are preferable over direct vibration measurement because it is non-contact and low cost. Experimental results show that our sound measurement system can detect electromagnetic sound effectively compared to using vibration measurements.

무용교육 기대효과에 따른 제요인에 관한 연구

정행도,박근희 명지대학교 예체능연구소 2003 藝體能論集 Vol.14 No.-

The purpose of this study was to identify effects of expectation whose are majonng in dance In order to get data, Self-administrated questionnaire was employed students(total 169 male 93%, female 93%) which major in dance in seoul & kyungki province. All data were analyzed by two-way ANOVA. The results of the research follow. 1. The effects of expectaion of dance education about increased physical fitness were differenciated from each university, The effects of expectation of dance education about increased physical fitness development were high in physical educatuon colleage. because they tried find in physical capacity development of dance education. 2. The effects of expectation about increased were high in art colleage because they tried find in physical capacity development of dance education. Also, the students who major in dance in art colleage focused in increasing quality of art. 3. The increasing of social through dance education were low expected value in university, year and minor major. The results showed the students who irujor in dance in art colleage thought uneffected dance education on increasing quality of social

경남 일부지역 농민들의 수면습관

정근화,손진욱 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.6

In order to investigate the sleep habits of farmers in a rural area, we studied 270 subjects(farmers) in a rural area from August 14, 1995 to August 19, 1995. Sleep habits were analyzed according to age groups(3 groups of 18-30, 31-50, over 51 years) and sex. The results were as follows : 1) The mean sleep length was 6.7±1.5 hours, and was longer in female than in male. In the above 51-year-old age group, sleep length was significantly shorter than those in the other two age groups. 2) The mean sleep latency was 21.6±21.5 minutes, and was longer in female than in male. There were no significant differences in sleep latency among age groups. 3) The sleep onset time was later in the 18-30-year-old age group than in the other two age groups. The awakening time was earlier in the over 51-year-old age group than in the other two age groups. 4) One hundred and four subjects(38.5%) complained difficulty falling asleep, 196 subjects(72.6%) complained fragmented sleep, and 86 subjects(31.9%) complained early morning awakening during the past two weeks. Difficulty falling asleep and fragmented sleep were more common in females than in male. 5) One hundred and seventeen subjects(43.3%) had napped during the past two weeks and there were no significant differences among age groups. 6) One hundred and sixty five subjects(61.1%) experienced daytime drowsiness during the past two weeks and there were no significant differences among age groups. 7) Ninety-one subjects(33.7%) reported nightmares, 32 subjects(11.9%) reported sleeptalking 3 subjects(1.1%) reported sleepwalking, and 15 subjects(5.6%) reported bruxism during past two weeks.

수입각증후군에 의한 급성 복증 1례

정은욱,지삼룡,이영태,박지훈,김동기,제인수,채두근,박성재,박은택,이연재,이상혁,설상영,정정명 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Afferent loop syndrome is an uncommon complication of a gastrectomy and Billroth Ⅱ reconstruction. It may cause symtoms at any time from the first postoperative day to many years after the gastrectomy. Afferent loop syndrome is characterized by abdominal pain, vomiting and elevation of serum amylase. Thus, it is difficult to differentiate afferent loop syndrome from other cause of acute pancreatitis. However, the history of gastrectomy can be an important clue for diagnosing afferent loop syndrome. We experienced one case of chronic afferent loop syndrome with acute pancreatitis. After appropriate management, the abdominal pain disappeared and serum amylase level decreased. We report this case with a review of relevant literatures.

담관 낭선암 1례

박건욱,홍기봉,정재열,노명환,한상영,최석렬,신우원,나서희 동아대학교의과대학 1997 동아의대학술지 Vol.9 No.1

GSM시스템과 GMSK MODEM

곽중근 대구보건대학 1994 대구보건대학 論文集 Vol.14 No.-

The arm of this study is to provide a general description of pan-Europen cellular radio system, commomly known the GSM System, detailing in the structure, operation and facilities. Digital mobile radio transmission techniques and intrgrated circuit device have been delvelopend for application to a digital potable tranceiver utilizing GMSK modulation.

2개의 분리판 사이에서 분사되는 평행 3중 분류에 의한 비정상 난류 유동장 해석

유근종,최훈기,정지훈 國立 昌原大學校 產業技術硏究院 2004 産技硏論文集 Vol.18 No.-

LES is applied to analyze unsteady turbulent triple-jet water flows which are commonly found in thermal stripping phenomena. Current analyses performed to find effect of different SGS models on flow field with partition plates. LES tends to predict higher level of RMS temperatures compared to those of experiment indicating very active mixing effect among triple jets. The LES is found to be able to provide reliable frequency information of temperature fluctuation. The different SGS models show no significant difference in prediction ability, while Smagorinky-Lilly model yields slightly stronger mixing activity.

Aprotinin의 체외순환에 따른 출혈억제효과

이정은,전대근,김종렬 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2

CPB(cardiopulmonary bypass) is a very complex process ad activated many humoral system which include the coagulation system, firbrinolytic system, kallikrein system, and the complement system, are probably all very important and closely interrelated. It has profound effects the number and especially function of platelets because of contact between blood and gaseous or synthetic solid surface during CPB. These changes increase blood loss after cardiac operations and may transfuse a large amounts of banked blood inevitably which may cause very serious complications including hepatitis and AIDS, etc. Aprotinin is a proteolytic enzyme inhibitor and depress the activation of fibrinolytic system via a powerful antiplasmin activity and may preserve von Willebrand platelet interaction. Two groups of patients were prospectively studied to evaluate the hemostatic effects of high dose aporotinin in open heart operation, first group patients(n=10), at the start of anesthesia 2,000,000 kallikrein inactivator units(KIU) of aprotinin was infused over 20 to 30 minutes. Subsequently, 500,000 KIU/h aprotinin was given untill the end of operation. Additionally, 1,000,000 KIU of aprotinin was in the priming solution of the extracorporeal circuit. Second group patients(n=10) served as controls. The results were as follows, 1. The decrease of hemoglobin and serum protein following CPB was reduced significantly(p<0.05) in aprotinin group. 2. The decrease of platelet number and increase of bleeding time following CPB were reduced in aprotinin group. 3. The intraoperative and postoperative blood loss and the amounts of transfusion of banked blood were reduced significantly(p<0.05) in aprotinin group. In the conclusion, we believe that the use of high dose aprotinin decreases blood loss and reduced the need for banked blood in cardiac patients.

FM 수신기의 중간주파수동조회로 대역폭 조정

곽중근 대구보건대학 1992 대구보건대학 論文集 Vol.13 No.-

This paper describes the system concept of controllable intermediate frequency(IF) bandwidth(BW) for FM radio receivers, which provide value improvement of the performance parameters for consumer expectation, i.e, signal to noise ratio(SNR), selectivity, and distortion. The proposed circuit has 4-diode bridge circuit. Provided that the diodes are identifical in characteristics, it follows from the complete symmetry of the circuit that no pedestal can appear at the output in response to the gating voltages.