• 한국국방경영분석학회지
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• 제17권2호
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• pp.44-53
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• 1991

This paper is aimed to develop a Lanchester type combat model for the direct-fire engagement. This model incorporates number of combatants, inter-firing time, detection time by movement, detection probability by the signature of fire, where the inter-firing time and the detection time are assumed to follow a negative exponential distribution. The approach to modeling is as follows : in the process of an engagement, a combatant takes one of the states('observing' state or 'firing' state), a combatant is initially in the observing state, if the combatant detects a target, he changes his state from 'observing' to 'firing' and will cause attrition to the opposing forces. Thus this transition mechanism is embodied into the differential equation form with each transition rate. A limited examination of the validity has been conducted by comparison with the Monte-Carlo simulation model 'BAGSIM', and with a traditional Deterministic Lanchester model.

• 대한물리치료과학회지
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• 제7권1호
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• pp.333-352
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• 2000

The objective of this study was to identify the effects of the cognitive performance of stroke patients on their motor function recovery after comprehensive rehabilitation management. The subjects of this study were 41 stroke in-patients of the Rehabilitation Hospital, College of Medicine, Yonsei University, hospitalized during the period from September 1, 1997 to May 5, 1998. The cognitive performance was measured using a Mini-Mental State Examination(MMSE) and the motor function recovery using Motor Assessment Scale(MAS). The data were analyzed by the paired t-test, independent t-test, a one way ANOVA, and Pearson's correlation coefficiency. The findings were as follows: 1. There was a significant difference found in the motor function recovery level after the comprehensive rehabilitation management. 2. There was no significant difference found in relation to sex, age, cause of stroke, laterality of paralysis and the level of spasticity. However, there was a big difference between pre- and post-treatment regarding the treatment period. 3. In line with the cognitive performance level, there was a significant difference found in the motor function recovery level after the comprehensive rehabilitation management. 4. The correlation between the elements of the cognitive performance and the motor recovery was found to be high in orientation, attention, calculation, and language. Those elements were expected to give larger effects on motor recovery after the comprehensive rehabilitation management. Based on this study, the cognitive performance level was found to play an important role in bringing effects on motor recovery after the comprehensive rehabilitation management of stroke patients. And the evaluation on the motor recovery based on quality would be also expected to be examined, as well as the cognitive performance level test accompanied by Intelligence Quality(IQ) test.

• 대한치매학회지
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• 제17권3호
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• pp.100-109
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• 2018

Background and Purpose: Although the clock drawing test (CDT) is a widely used cognitive screening instrument, there have been inconsistent findings regarding its utility with various scoring systems in patients with mild cognitive impairment (MCI) or dementia. The present study aimed to identify whether patients with MCI or dementia exhibited impairment on the CDT using three different scoring systems, and to determine which scoring system is more useful for detecting MCI and mild dementia. Methods: Patients with amnestic mild cognitive impairment (aMCI), vascular mild cognitive impairment (VaMCI), mild Alzheimer's disease (AD), mild vascular dementia (VaD), and cognitively normal older adults (CN) were included. All participants were administered the CDT, the Korean-Mini Mental State Examination (K-MMSE), and the Clinical Dementia Rating scale. The CDT was scored using the 3-, 5-, and 15-point scoring systems. Results: On all three scoring systems, all patient groups demonstrated significantly lower scores than the CN. However, while there were no significant differences among patients with aMCI, VaMCI, and AD, those with VaD exhibited the lowest scores. Area under the Receiver Operating Characteristic curves revealed that the three CDT scoring systems were comparable with the K-MMSE in differentiating aMCI, VaMCI, and VaD from CN. In differentiating AD from CN, however, the CDT using the 15-point scoring system demonstrated the most comparable discriminability with K-MMSE. Conclusions: The results demonstrated that the CDT is a useful cognitive screening tool that is comparable with the Mini-Mental State Examination, and that simple CDT scoring systems are sufficient for differentiating patients with MCI and mild dementia from CN.

• 한국치위생학회지
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• 제16권2호
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• pp.295-301
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• 2016

Objectives: The purpose of the study was to investigate the association between denture wearing and dementia using a Mini-Mental State Examination (MMSE-K) in the community dwelling elderly. Methods: The study subjects were 184 community dwelling elderly using Korean version of mini-mental state examination(MMSE-K). The variables included the general characteristics of the subjects, denture earing, number of mastication tooth, subjective mastication ability, and MMSE(dementia). Denture wearing was divided into two groups of the natural dentition including the fixed prosthesis and removable denture including the complete and/or partial denture. The data were analyzed by ${\chi}^2$ test, t-test, and binary logistic regression using SPSS version 22.0 program. Logistic regression was used to analyze the association of MMSE-K score and denture wearing, and 95% confidence interval was calculated. The subjective mastication ability was measured by Likert 5 points scale. Dementia was measured by MMSE-K. Results: There was a significant association between MMSE-K score and denture wearing. The odds ratio(OR) of denture waering was 6.01(95% CI: 2.824-12.784). After adjusting the age, gender, residence and education, OR was 5.53(95% CI: 2.364-12.935). Conclusions: This study showed a significant association between MMSE-K score and denture wearing in the Korean elderly.

• 과학교육연구지
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• 제46권1호
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• pp.121-149
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• 2022

서술형 평가는 수학과 교육과정에서 강조하는 문제해결 능력 신장, 추론 능력, 의사소통 능력과 관련하여 의미있는 평가 방법이라 할 수 있다. 우리나라에서는 제7차 수학과 교육과정 이후로 수행평가가 강조되면서 중등학교에서 수행평가의 한 방법으로 서술형 평가가 이루어지고 있다. 그렇지만, 대학수학능력시험에서는 여러 가지 이유로 서술형 평가가 도입되지 못하고 있다. 수학교실에서 서술형 평가가 강조되고 교육적으로 충분히 가치가 있다는 것을 감안하면, 대학수학능력시험에서 서술형 평가의 실시에 대한 진지한 논의가 필요할 것이다. 본 연구에서는 우리나라의 대학수학능력시험에 해당하는 러시아의 국가통합시험의 수학 교과에서 실시 중인 서술형 평가를 분석하였다. 문헌 연구를 통해, 국가통합시험에서 수학 시험 문제들이 어떻게 구성되었는지, 시험에서 요구되는 수학적 능력은 무엇인지 고찰하였다. 특히, 국가통합시험의 수학 2021년 출제 문제를 중심으로 문제들의 외적 구조를 분석하였고, 서술형 문제들의 채점 방법을 분석하였다. 본 연구의 결과는 우리나라의 대학수학능력시험에서 서술형 문제의 도입 가능성에 대한 다양한 정보를 제공할 수 있을 것으로 기대된다.

• Journal of Preventive Medicine and Public Health
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• 제27권4호
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• pp.747-761
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• 1994

Workers' periodic health examination is the main tools used to manage the health problems of most workers in Korea. The most common health problem found in workers' periodic health examination is liver disorder. Liver disorder is also one of the most common health problems in general population and one of the leading causes of mortality in adult population. Regulation proposed by government (No. 207, Ministry of Labor, 1992) defines the criteria for selection of workers with the liver dysfunction for further evaluative examination and the examination items used for diagnosis of the workers with liver dysfunction. This study was designed to evaluate the proficiency of each examination items presently defined in Regulation and propose the optimal examination items for detection of the liver disorders found by workers' periodic health examination. Study subjects are 186 workers with abnormal liver function tests in screening examination of workers' periodic health examination. Questionnaire survey including past history of liver disorder, drinking history, height and weight was done. Physical examination by physician, routine test items defined by Regulation (SGOT, SGPT, $\gamma$-GTP, protein, albumin, total and direct bilirubin, alkaline phosphatase, $\alpha$-feto protein, HBsAg and anti-HBs), anti-HCV antibody test and liver ultrasonography were done. Results are as follows; 1. Result of evaluative examination utilizing only the items defined in Regulation was; There were 75 workers with suspected live. disorder(40.3%), 63 with no liver dysfunction (33.9%), 13 with suspected hepatitis B(7.0%), 10 workers with hepatitis B(5.4%), 10 workers with hepatitis B carrier state(5.4%), 10 with alcoholic liver disorders(5.4%), 5 with fatty liver(2.7%). When alternative diagnostic criteria applying additional examination items (drinking history, body mass index, anti-HCV antibody and ultrasonography) diagnosability of liver disorder was increased. When all four items were included, final results were; 23 workers (17.8%) with hepatitis B (10 carriers, 13 suspects and 10 hepatitis B), 10 (5.4%) with hepatitis C(4 carriers, 5 suspects and 1 hepatitis C), 13(7.0%) with alcoholic liver disorder, 45(24.2%) with fatty liver (40 suspects, 5 fatty liver), 410%) with suspected liver disorders and 44 (23.7%) with normal liver. 2. Of examination items defined by Regulation, only SGOT, SGPT, $\gamma$-GTP and HBsAg were significantly different in abnormal rate and mean value, and all other laboratory findings did not showed significant difference between two groups. Drinking history, body mass index and anti-HCV antibody test which are the items that authors included in this study, also showed significant difference between two groups. Utilization of body mass index (BMI) for abnormal liver function group in diagnosis of fatty liver had high specificity (97.6%) but sensitivity (22.3%) was low. Therefore we suggest that SGOT, SGPT, $\gamma$-GTP, HBsAg, alcohol drinking history, BMI and anti-HCV Ab were useful for diagnosis of liver disorders among worker's periodic health examination.

• Bulletin of the Korean Chemical Society
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• 제7권3호
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• pp.204-210
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• 1986

It is shown that the linear stability coincides with the thermodynamic stability in the case of stress tensor evolution for simple dense fluids even if the constitutive (evolution) equation for the stress tensor is nolinear. The domain of coincidence can be defined in the space of parameters appearing in the constitutive equation and we find the domain is confined in an elliptical cone in a three-dimensional parameter space. The corresponding state theory in rheology of simple dense fluids is also further examined. The validity of the idea is strengthened by the examination.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2002년도 Proceedings of the International Welding/Joining Conference-Korea
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• pp.433-438
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• 2002

The education, examination and qualification systems around the world are now changing rapidly and unifying as one system. The Korean national system should be harmonious with this international tendency, in order to overcome the high degree of international economic competition. In this article, the current state of the international and national systems are critically compared and discussed with the intention of proposing improvements to the Korean national system. The Korean Welding Society has revamped its system so that its certificates might be recognized by the welding institutions in foreign countries such as the European Welding Federation (EWF) and still be recognized by the Korean Government. Their desire to join the system of International Institute of Welding (IIW) was also a factor in the restructuring.

• International Journal of Korean Welding Society
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• 제3권1호
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• pp.57-62
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• 2003

The education examination and qualification systems around the world are now changing rapidly and unifying as one system. The Korean national system should be harmonious with this international tendency, in order to overcome the high degree of international economic competition. In this article, the current state of the international and national systems are critically compared and discussed with the intention of proposing improvements to the Korean national system. The Korean Welding Society has revamped its system so that its certificates might be recognized by the welding institutions in foreign countries such as the European Welding Federation (EWF) and still be recognized by the Korean Government. Their desire to join the system of International Institute of Welding (IIW).

• Journal of Preventive Medicine and Public Health
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• 제29권4호
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• pp.733-746
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• 1996

연 업종별 보건관리 대행기관에 의해 근로자의 보건 관리를 하고 있는 5개 연 축전지 회사의 전체 근로자들 중 1995년에 일반 건강진단 및 특수 건강진단을 동시에 시행한 전체 1,919명의 근로자 중에서 C(건강관리 상 계속 관찰이 필요한자)와 D(유소견자)의 판정을 받은 365명의 근로자들을 대상으로 하여 이들 중 퇴직자 35명, 조사 기간중 출장, 휴직 및 야간 근무자 8명, 그리고 조사에 응하지 않은 근로자 29명 등 총 72명을 제외한 293명을 대상으로 설문 및 1995년도 일반 및 특수 건강진단 결과표를 통하여 건강진단 결과에 따른 사후관리 조치실태 및 관련 요인들을 조사하였다. 결과를 요약하면 다음과 같다. 1. 요주의자 이상근로자의 86%가 건강진단결과표를 받았으나 이에 대한 교육설명이 제대로 이루어지지 않았고, 자신의 건강진단 결과를 잘 알고 있지 못하였다. 2. 사후관리 조치가 있었던 근로자는 23%로 낮았으며, 사후관리조치의 내용은 단순한 추적관찰이 가장 많았다. 3. 조사대상 근로자들은 현재의 건강진단은 필요하지만 형식적이라고 하였다. 4.사후관리 조치의 유무를 피설명변수로 한 로지스틱 회귀분석에서 유의한 설명 변수는 건강진단 결과에 대한 설명의 유무뿐이었다.