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이관형,정호근,박정선 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.4
목적 : 우리나라 전체 산업재해의 발생패턴과 추이를 파악하구 미래시점에 발생할 수 있는 산업재해자수를 예측 개발하여 장단기 산업보건 예방정책을 수립하는데 기여하고자 한다. 방법 : 예측모형에 사용된 자료는 1986년 1월부터 1999년 7월 까지 발생된 월별 누적 재해자수이며, 이 자료로부터 테이터 마이닝 기법을 사용하여 미래시점의 산업재해자 예측모델을 개발하였다. 결과 : 163개월 분의 산업재해 발생자료로부터 미래시점의 산업재해자수를 예측한 결과, Robust한 예측모형은 Winter∼method multiplicative in exponential smoothing로 예측력이 95%을 보였다. 산업재해 시도표를 탐색하면 전체적으로 산업재해자는 감소추세를 보이며, 순환주기를 1년으로 보면 2월과 9월이 가장 낮고, 6, 7, 10, 11월에 재해가 가장 많이 발생됨을 알 수 있었다. 월 평균 재해자 발생규모는 8,709명이다(95% CI;8277명, 9140명), 개발된 예측모형으로부터 1999년 8월 이후의 산업재해 발생자 규모를 보면, 1999년 12월과 2000년 1/4분기에 급격히 감소추세를 보이다가 2/4분기 시점을 정점으로 다시 재해자수가 증가할 것으로 예측된다. 결론 : 개발된 윈터스 모형을 이용한 미래시점의 산업재해 월별 발생 예측치는 (Table 3)과 같다. 예측치를 보면 1999년 긴월에서 2000년 1월, 2월에 급격히 감소추세에서 2000년도 2/4분기에 다시 서서히 증가하고 있다. 그리고 과거시점과 미래시점의 월별 산업재해 발생 실측치와 예측치 시도표는 Fig. 12와 같다. 또한 1998년에는 전반적인 발생추이 경향이 무너졌는데, 이는 한국 경제의 크나 큰 사건인 1997년 10월에 발표한 IMF에 의한 산업전반의 침체가 개입된 것으로 판단되며, 1999년에는 경기침체에서 벗어나 경제가 활성화 국면이 된다면 10월, 11월에는 이전보다 다소 재해자가 증가할 것으로 예상된다. 그리고 시간이 지남에 따라 추가적으로 발생된 월별 산업재해자수를 개발된 모델에 투입시키면서 검증과 평가를 통해모델을 정립할 계획이다. Objectives : This study is to see the transition and pattern of the industrial i울ureal worker, and to develop the prediction model. Methods : The data of the study are based on the samples from data-warehouse of Occupational Safety & Health Research Institute and are summed monthly from Jan 1986 to Dec 1999. This study data used data mart and Meta data from DW in KOSHA. The prediction model of the injured worker in Industry is designed by using a winters time series method after data preparing (i. e. sample, explore, modify) from DW. Results : Thls predicted model obtained Winters-method multiplicative in exponential smoothing among applied all models, after the tlme series (total 163 months). It showed that the prediction power was 95.5 %. Conclusions : In the process of exploring the data, totally the rate of industrial injureal workers reduced, and in the yearly circulation, in February and September the number is the lowest but in June, July, October and November the higher. The number of monthly average injureal workers is 8709 (95 % confidence interval 8277, 9140). From the developed prediction model, since Aug 1999 the industrial injureal worker reduced rapidly in Dec 1999 and first period of 2000. But In second period of 2000 the number of the injured workers is increasing. To conclude, as the total economic situation is becoming better in 2000 than In 1999, its is supposed that the injured workers will increase more than the predictive injured workers because of the increase of production rate and labor force.
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이정선 대구효성가톨릭대학교 1997 연구논문집 Vol.56 No.2
We introduce a comparison theorem of integral inequality, whereby we establish generalizations of several theorems of T.Taniguchi [7] on·the quasi-asymptotic stability and the uniform-asymptotic stability of the zero solution of the perturbed linear differential equation.
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이정선,유정이 한국심리유형학회 2002 심리유형과 인간발달 Vol.9 No.-
본 연구의 목적은 MBTI에 나타나는 관리직 종사자의 성격유형과 직무만족요인과의 관계를 밝히는 있다. 위의 연구문제를 검증하기 위해 경인지역 S그룹의 남자 관리직 종사자 221명을 대상으로 MBTI성격유형검사와 최현(1998)의 직무만족요인(근무처환경, 상사와의 관계, 동료와의 관계, 일 자체 흥미, 직무 자체, 인사 정책, 안정성 및 장래성) 질문지를 사용 하였다. 연구의 결과 첫째, 성격선호지표에 따른 직무만족요인의 차이연구에서 성격선호지표 S와 N에서 직무만족요인의 차이가 나타났다. S가 N보다 근무처 환경, 상사와의 관계, 동료와의 관계, 직무 자체, 인사 정책, 안정성 및 장래성에서 더 만족하는 것으로 나타났다. 둘째, 기능별 성격유형과 직무만족 요인의 차이연구에서 기능별 성격유형과 직무만족의 요인의 차이가 나타났다. ST가 NT보다 근무처 환경, 상사와의 관계, 종료와의 관계, 인사정책에서 더 만족하는 것으로 나타났으며, NF보다 직무 자체, 인사 정책, 안정성 및 장래성에서 더 만족하는 젓으로 나타났다. 또한 SP가 NT보다 근무처환경, 상사와의 관계, 동료와의 관계, 민사정책에서 더 만족하는 것으로 나타났으며, NF보다 인사정책, 안정성 및 장래성에서 더 만족하는 것으로 나타났다. This study aims at investigating the relationship between psychological type and factors of job satisfaction. The research participants were 221 male employees attached at S group in Seoul and Kyounggi areas. I measured MI3TI and Job Satisfaction Inventory(1998, Hyun Choi) for them. The Results of this study were as follows. The first hypotheses were partially approved, Analyzing the 7 factors of job satisfaction, there was significant different between Sensing and Intuition. Also, there were significant differences in "working condition", "relationship with supervisors", "relationship with co-workers", "work", "personnel policy", "security and development" between Sensing and Intuition. It was revealed that Sensing tent to satisfy in "working condition""relationship with supervisors", "relationship with co-workers", "personnel policy", "security and development" than Intuition. The second hypothesis was approved. Analyzing the 7 factors of job satisfaction, there were significant differences among the functional types. There were significant differences in "working condition" "relationship with supervisors" "relationship with co-workers" "personnel policy" between ST and NT. It was revealed that ST significantly tent to satisfy in "working condition" "relationship with supervisors", "Relationship with co-workers" "personnel policy" than NT. There were significant differences in "work" 'personnel policy,, "security and development" between ST and NF. It was revealed that ST significantly tent to satisfy in "work", "personnel policy", "security and development" than NF. Also There were significant differences in "working condition", "relationship with supervisors" "relationship with co-workers" "personnel policy'", between SF and NT. It was revealed that SF significantly tent to satisfy in "working condition", "relationship with supervisors", "relationship with co-workers", "personnel policy" than NT. There were significant differences in "personnel policy", "security and development" between SF and NF. It was revealed that SF significantly tent to satisfy in "personnel policy", "security and development" than NF.
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다발성 연조직 종괴를 동반한 급성 림프구성 백혈병의 증례 보고
장정용,허경회,이원진,허민석,이삼선,최순철 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.2
A 15-year-old patient, who had been diagnosed and treated as Burkitt cell type acute lymphoblastic leukemia (ALLL3) already, visited our department. He complained of gingival enlargement and loosening teeth 1 month ago. The clinical examination revealed anterior open bite, gingival enlargement, and nontender swelling particularly in molar regions of both jaws. Deep periodontal pockets and severe mobility was shown on most of the teeth. The panoramic radiographs showed severe bone destruction and extrusion of the molars. The contrast enhanced CT showed multiple enhanced mass and bone marrow obliteration in both jaws. Chemotherapy was done and the swelling was subsided at 1 month later. In conclusion, radiologic findings of leukemia with soft tissue mass, known as chloroma or granulocytic sarcoma, mimic those of lymphoma, so blood test may be needed for the final diagnosis.
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최항문,이원진,허민석,이삼선,김정화,최순철,박태원 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.37 No.1
Purpose : To find the cause of root curvature by use of panoramic and lateral cephalometric radiograph. Materials and Methods : Twenty six 1st graders whose mandibular 1st molars just emerged into the mouth were selected. Panoramic and lateral cephalometric radiograph were taken at grade 1 and 6, longitudinally. In cephalometric radio graph, mandibular plane angle, ramus-occlusal plane angle, gonial angle, and gonion-gnathion distance (Go-Gn distance) were measured. In panoramic radio graph, elongated root length and root angle were measured by means of digital subtraction radiography. Occlusal plane-tooth axis angle was measured, too. Pearson correlations were used to evaluate the relationships between root curvature and elongated length and longitudinal variations of all variables. Multiple regression equation using related variables was computed. Results : The Pearson correlation coefficient between curved angle and longitudinal variations of occlusal plane-tooth axis angle and ramus-occlusal plane angle was 0.350 and 0.401, respectively (p<0.05). There was no significant correlation between elongated root length and longitudinal variations of all variables. The resulting regression equation was Y=10.209+0.208X_(1)+0.745X_(2) (Y: root angle, X_(1): variation of occlusal plane-tooth axis angle, X_(2): variation of ramus-occlusal plane angle). Conclusion: It was suspected that the reasons of root curvature were change of tooth axis caused by contact with 2nd deciduous tooth and amount of mesial and superior movement related to change of occlusal plane. (Korean J Oral Maxillofac Radiol 2006; 36 : 55-62)
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( Yi Sook Jung ),( Bo Kyung Lee ),( Sun Kyung Lee ),( Kyu Yang Yi ),( Sung Eun Yoo ) 한국응용약물학회 2011 Biomolecules & Therapeutics(구 응용약물학회지) Vol.19 No.4
Preciously, we demonstrated that a novel NHE-1 inhibitor, KR-33028 attenuated cortical neuronal apoptosis induced by glutamate. In the present study, we investigated the signaling mechanism of neuroprotective effect of KR-33028 against glutamate-induced neuronal apoptosis, especially focusing on mitochondrial death pathway. Our data showed that glutamate induces a biphasic rise in mitochondrial Ca2+ and that KR-33028 signifi cantly prevents the second phase increase, but not the fi rst phase increase in mitochondrial Ca2+. Furthermore, KR-33028 restored the ΔΨm dissipation and cytochrome c release into cytoplasm induced by glutamate in a concentration-dependent manner. The inhibition of mitochondrial Ca2+ overload by ruthenium red also inhibited glutamate-induced apoptotic cell death, mitochondrial membrane potential, ΔΨm dissipation and cytochrome c release. These data suggest that inhibition of mitochondrial Ca2+ overload is likely to be attributable to anti-apoptotic effect of KR-33028. Taken together, our results suggest that anti-apoptotic effects of NHE-1 inhibitor, KR-33028 may be mediated through maintenance of mitochondrial function.
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