심혈관계 질환으로 관상질환 집중치료실에 입원한 환자들의 혜후 측정을 위한 APACHEⅢ점수 체계의 임상적 유용성

이공섭,이창선,최현주,홍종서,강지향,김도형,이민영,오인균,김병엽,김상억,김학찬,한승혜,이재용,지영우,안경주 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.8

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.

스포츠전문채널 방송3사 프로야구 해설자의 공신력이 채널만족 및 채널충성도에 미치는 영향

김종훈 ( Jong Hoon Kim ),이정학 ( Jeoung Hak Lee ) 한국스포츠산업경영학회 2011 한국스포츠산업경영학회지 Vol.16 No.5

This study aims to furnish the basic empirical data to differentiate image of professional sports channels of broadcasting stations through more efficient operation strategies image managing plan, and the operation of the communication media of the broadcasting stations by looking through the relationship between the credibility of professional sports channels of three broadcasting stations, channel satisfaction and loyalty. The study conducted a research survey through convenience sampling method aimed at college students n Seoul and Gyeonggi area, who currently are the media receivers. Total of 424 copies were selected as the final validity sample. For the measuring instrument, precedent studies of Kim Hyun-Joo(1998), Kim Eun-Sung(2003), Kim Soo-Kyung(2005), Lee Jeoung-Hak, Kim Jong-Hoon & Noh Jae-Hun(2007), Park Ran Hee(2008), Jo Gun Jin(1998) were used and reconstructed according to this research. The research target scope was limited to professional sports channel casters, MBC SPORTS+(Hu Goo-Youn), KBSN Sports(Ha Il-Sung), SBS ESPN(Park No-Jun) who are the commentators of the professional sports channels of three broadcasting stations. The result of the study showed there were significant differences between the sub-factors of commentators`` credibility, ``expertise``, ``trustworthiness``, ``popularity``, ``dynamic`` and professional sports channels of three broadcasting stations. And ``expertise``, ``trustworthiness`` sub factors influenced significantly on it. On the basis of the results, professional baseball casters with more professionalism and trustworthiness are needed in able to gain more credibility from the public.

영幼兒養育에 關한 調査

李性寬,宋善祐,尹能基,李學洙,鄭鍾學,C.Kersting 慶北大學校 醫科大學 1973 慶北醫大誌 Vol.14 No.2

There is no doubt that good nutrition for infants relates not only to the health of the individual but also influences the health of the nation. In spite of nutrition's trememdous importance, there is no data available concerning infant nutrition and, moreover, there is no study about the knowledge, attitudes and practies of infant feeding and weaing. Taking into account the fact that most infants in Korea are breast fed, and have a long lactation period, there must be provision for adequate supplemental food at the proper time. The first step in launching a new health program should be the exact evaluation of the present status of infants' feeding diet. This study was designed to collect basic data on the status of infants' nutrition in order that these data might be sued as program organization indicators for the improvement of infant nutrition. The data were obtained through interviewing 726 mothers who registered their children at the Taegu MCH Center's well baby clinic.

冠岳樹木園地域內 荒廢山地土壤의 肥沃化를 통한 綠化促進에 關한 硏究

李宗學,麻鎬燮,權台鎬,李憲浩,禹保命 서울大學校農業生命科學大學附屬樹木園 1984 서울大學校 樹木園 硏究報告 Vol.- No.5

冠岳樹木園地域의 山腹斜面은 地質的으로 대보화강암에서 풍화생성된 거친 돌부수러기가 많은 粗砂質壤土로 구성되었으므로 表土層의 土壤流失이 심하여 土深이 대단히 얕거나 岩盤露出이 심하여 林木生長이 심히 不良한 地帶로서,山地의 地力恢復 및 現存하는 散生樹木의 生長力恢復을 通한 山地綠化保全이 시급히 요청되고 있다. 이와같은 요청에 부응하여 荒廢地斜面에 自生하고있는 주요한 4樹種(소나무, 리기다소나무, 노간주나무, 철쭉)에 대하여 山地施肥效果 試驗을 春期와 秋期로 나누어 실시한 결과 樹高 및 直徑生長量에 있어서 無施肥區에 比하여 현저한 施肥效果가 인정되었다. 따라서 冠岳山地帶의 荒廢地를 조속히 復舊綠化하기 위해서는 砂防土木的 工事方法 및 砂防造林的 播植方法이외에도 현존 수목의 保全 및 生長力恢復을 통한 速成綠化方法도 채용되어야 할 것이다. Hillsides in the Kwanak arboretum area were composed mainly of coarse sandy loam having relatively high proportion of rough weathered debris derived from the Daebo granite geologically. Owing to heavy soil erosion resulted to shallow soil depth and heavy rock exposures, the growing trees in this type of surface soil are very poor in their growth. For woody plant vegetation establishment in this montain area, it is urgent to recover the fertility of soil and the growth of existing trees. For this purpose, in spring and autumn season in 1983∼84 the fertilization experiment was conducted with the 4 principal native species(Pinus densiflora, Pinus rigida, Juniperus rigida, Rhododendron schlippenbachii) growing in this denuded forest land, and the effects of fertilized tree plots were more prominent than the control plot in both height and root-collar diameter growth. Therefore, the accelerating measures of vegetation rehabilitation through conservation of existing trees and recovery of tree growth by forest fertilization practices, besides forest engineering measur es and soil erosion control afforestation measures, could be acceptable as the measures for the recovery of denuded forest land in Mt. Kwanak area.

표면 SH파 모드의 분산특성 해석과 그 응용

이상용,박익근,윤종학,노승남,안형근 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-

A new flaw detection technique using by SH angle beam method has been discussed. The SH-wave is horizontally polarized shear wave and the surface SH wave has a characteristic of traveling along near surface layer. The surface SH wave technique is valuable for the detection of fatigue cracks at fillet weld heels which cannot be detected by other ultrasonic technique such as angle beam technique and The dispersion curves of it has simple characterization. In this work, using these beneficial chraterization, quality evaluation of spot weld with ultrasonic sound intensity of SH-wave passing through nugget area of spot weld are verified experimentally.

초등학교 철학(도덕/논리)교육을 위한 토론식 수업모형 탐구 : For Philosophy(Moral and Logic) Education in elementary school

이종훈,하병학 춘천교육대학교 2003 人文社會敎育硏究 Vol.6 No.-

充塡 氣泡塔에서의 溫度變化에 따른 諸特性 硏究

李鍾學,鮮宇昌辰,金雨植 연세대학교 산업기술연구소 1977 논문집 Vol.7 No.1

The performance of packed bubble column was investigated in a 3 inches I.D. acryl column packed with spiral wires. The effect of temperature on a gas hold-up(??) was studied from 15℃ to 45℃ in air-distilled water system with superficial gas velocity variation, and the over-all height of transfer unit ((H.T.U.)??), volumetric liquid phase mass transfer coefficient (??) and over-all absorption efficiency (??) were studied from 25℃ to 55℃ in CO₂-air-distilled water system, holding other conditions constant. The resulte showed that the ?? had the maximum value at 35℃ in unvibrational air-distilled water system and 25℃ in vibrational acceleration system. And the value of ??, ?? and E? were increased with increasing temperature up to 45℃ and decreased with increasing temperature above this value in CO₂ absorption system. The effect of temperature on k?a and (H.T.U.)? was relatively high, and effect on ?? and ?? was slight.

수핵 탈출증 발생과 관련된 작업요인 평가

이중정,정종학 大韓産業醫學會 2001 대한직업환경의학회지 Vol.13 No.1

목 적 : 요통의 원인중 가장 대표적 질환인 수핵탈출증 발생에 영향을 미치는 요인을 규명하기 위해일반적 특성, 직종, 작업의 강도, 생활속에서 상급자와 동료들간의 지지도, 심리적 요인을 고려한 환자-대조군 연구를 시행하였다.방 법 ' 설문조사를 통한 근무년수, 교육수준, 흡연여부, 체격지수, 입대전 직업 등의 일반적인 특성파악 및 면접과 관찰을 통한 직종 및 작업특성을 파악하였다. 정신적관련요인 평가는 KMPI를 사용하였으며, 사회 정신적인 지지도와 관련된 요인 측정은Modified Work APGAR를 사용하여 측정하였다.결 과 : 일반적 특성에서는 교육수준과 계급이 환자군과 대조군간에 차이가 있었으며, 다중 로지스틱회귀분석 결과 교육수준만이 수핵 탈출증 발생에 영향을 미치는 변수로 조사되 었다.직종별로는 포병보직자와 야전건설에 종사하는 대상자가 일반 소총수 보직자에 비해 환자군에서 높은비율을 보였다. 다른 요인을 보정한 다중로지스틱회귀분석에서는 포병, 야전 건설작업자와 운전에 종사하는 대상자가 일반 소총수에 비해 수핵 탈출증 발생의 위험이 높았으며, 전화 교환업무에 종사자는일반 소총수 보직자에 비해 수핵 탈출증이 발생할 확률이 낮았다.작업 특성에 따른 분류에서 치대 45 kg, 23 ◎ 이하의 물건을 자주 들어올리거나 운반하는 힘든 일을수행하는 군, 23 kg 이상의 물건을 자주 들어올리거나 운반하는 경우 혹은 45 k9 이상의 물건을 가끔씩들어 올리거나 운반하는 경우가 있는 매우 힘든 일을 수행하는 작업군 및 차량운전에 종사하는 대상자가최대 9 kg, 5 k9 이하의 물건을 자주 들어을리거나 운반하는 경작업군에 비해 수핵 탈출증 발생의 위험이 높은 것으로 나타났다.정신적으로 관련된 요인을 측정하기 위한 KMPI검사에서 단변량 분석에서는 건강염려증척도, 히스테리척도, 편집증척도, 경조증척도가 환자군과 대조 군사이에 차이가 있는 것으로 나타났으며, 수핵 탈출증 유무를 종속변수로한 다중로지스틱 회귀모형에서는 건강염려증척도, 히스테리척도, 경조증척도,내향성척도가 비정상적으로 높을 때 수핵 탈출증발생의 위험이 높은 것으로 조사되었다.사회 정신적인 지지도왁 관련된 요인을 측정하기위한 Modified Work APGAa항목의 단변량 분석에서 '어려운 작업이 있을 때 도움을 청할 수 있는 동료가 있어 만족한다'는 항목, '문제점을 공감하고 같이 터놓고 이야기 할 수 있는 동료가 있어 만족한다'는 항목 '같이 시간을 보낼 수 있는 동료가 있어 만족한다'는 항목 '나의 일과 관련된 임무를 즐긴다'는 항목에서 분포의 차이를 보였으며, ModifiedU'ort APGAR의 전체 합산점수도 환자군에서 유의하게 높았다. 다중 로지스틱회귀분석에서는 직무에 대해 만족할수록 작업장내 동료들간의 친밀한 관계를 가질수록 수핵 탈출증 발생의 빈도가 낮은 것으로 나타났다. 결 론 : 요통을 일으키는 대표적 질환인 수핵 탈출증 발생에 영향을 미치는 요인으로 역학적 요인 외에도 개인의 일반적 특성, 사회적, 정신적 요인도 밀접한 관련이 있는 것으로 생각되며, 향후 수핵 탈출증이나 요통에 영향을 미칠 수 있는 위험요인으로역학적 요인 외에도 사회적, 정신적인 다양한 요인과 측정도구로 위험인자를 규정하고 이에 대한 개입연구가 계속 되어야 할 것으로 생각된다. Objectives : A case-control study was conducted on 2,323 male soldiers(771 herniated nucleus pulposus patients and 1542 controls) to identify risk factors for cumulative trauma disorders especially lower back. Methods : The collecting data included individual physical, psychological, and work environmental factors. Korea Military Personality Inventory (KMPI) was used to examine the assess trait that have been associated with clinically with herniated nucleus pulposus. A measurement of the workplace support system was obtained by using of the modified work APGAR, a brief, seven-item workplace function questionnaire. Results : The herniated nucleus pulposus patients were more common among Artillerymen and Engineer than among infantrymen. In logistic regression analysis of military occupational specialties, Artillerymen, Engineer, radio operator, driver were higher risk of herniated nucleus pulposus than infantrymen. Multivariate analysis of KMPI scales found hypochondriasis scale, hysteria scale, hypomania scale, social introversion scale to have strong relationship to incidence of herniated nucleus pulposus. And 'can communicate with peers' and 'enjoy job task' item of modified work APGAR to have strong relationship to incidence of herniate nucleus pulposus. Conclusions : Study of the relative contributions of many physical and non physical variable shows that evaluations of back problems in workplace that exclude these highly significant work perception and psychosocial variables are of limited value. Simple, unidimensional approaches that ignore the effect of work perceptions and psychological factors on back problems reporting oversimplify a multifaceted problem. These findings emphasize the importance of adopting a broader approach to the multifaceted problem of back complaint in workplace.

α-디아조 케톤과 올레핀의 광반응

李學沂,曺燦湜,金宇鍾,禹海允 慶北大學校 1990 論文集 Vol.50 No.-

The majority of carbenes add to olefins to give cyclopropanes. In this study, 2-diazo-1,3-indandione, 2-diazo-1-indanone, and 3-diazooxindole were used as carbene precursors. Irradiation of these diazo compounds with trichloroethylene, acrylonitrile, cyclohexene, and cyclooctene was investigated. The addition of carbenes to benzene generally affords norcaradiene or cycloheptatriene or both. Irradiation of 2-diazo-1,3-indandione with benzene gave only cycloheptatriene derivative in 24% yield. But irradiation of 2-diazo-1-indanone with benzene gave norcardiene in equiribrium with cycloheptatriene derivative in 24% yield.