무장발사장치 체계성능분석을 위한 시뮬레이터 개념 모델링 사례

윤재문,Yoon, Jae-Moon 한국군사과학기술학회 2009 한국군사과학기술학회지 Vol.12 No.4

This paper describes a conceptual model for the performance analysis simulator of a weapon launching system. The system performance analysis simulator is envisioned to provide an integrated analysis environment in which the system performance and operational effectiveness can be analyzed in more rapid and efficient way. The conceptual model for the simulator describes a referent independently of specific technology and implementation, and it can be used to transform the simulator requirements into the simulator system specifications.

퇴행성 눈꺼풀속말림의 수술방법에 따른 치료결과 분석

윤재문,김선아,노주헌.Jae Moon Yoon. M.D.. Sun A Kim. M.D.. Joo Heon Roh. M.D.. Ph.D 대한안과학회 2008 대한안과학회지 Vol.49 No.12

Purpose: To evaluate the long-term effectiveness of different surgical procedures according to horizontal eyelid laxity in correcting involutional entropion. Methods: This retrospective study reviewed 104 eyes of 79 patients with involutional lower eyelid entropion who underwent surgical repair. The 62 eyes with horizontal eyelid laxity were classified as group I. In 17 eyes of group I, we performed the lateral tarsal strip procedure alone (group Ia), while in 45 eyes of group I, we performed the lateral tarsal procedure and Quickert suture (group Ib). The 42 eyes without horizontal eyelid laxity were classified as group II. In 13 eyes of group II, we performed a lower eyelid retractor reinsertion procedure only (group IIa), and in 29 eyes of group II, we performed combined lower eyelid retractor reinsertion and orbicularis resection (group IIb). Results: The recurrence rate in these four surgical subsets (group Ia , group Ib, group IIa, group IIb) was 11.7%, 0%, 15.4%, and 6.9%, respectively, with an average follow-up of 11 months. Six recurrent eyelids and two overcorrected eyelids successfully underwent procedures to correct recurrent entropion and ectropion, respectively. Conclusions: The lateral tarsal strip procedure is an effective approach for achieving long-lasting correction of involutional entropion with horizontal eyelid laxity, whereas the lower eyelid retractor reinsertion procedure is an effective approach for achieving long-lasting correction for involutional entropion without horizontal eyelid laxity. Use of the Quickert suture reduced the need to repeat the lateral tarsal strip procedure and additional orbicularis resection decreased the need to repeat the lower eyelid retractor reinsertion procedure. J Korean Ophthalmol Soc 2008;49(12):1877-1887

전인적이며 통합적인 관리

윤재문 대한가정의학회 2023 Korean Journal of Family Practice Vol.13 No.4

노인에서의 일차의료와 건강

윤재문 대한가정의학회 2022 Korean Journal of Family Practice Vol.12 No.3

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[일차의료정책포럼] 기능적 일차의료의 정의와 국내 현황

윤재문,최슬기,조유선,박상민,김윤 대한가정의학회 2021 Korean Journal of Family Practice Vol.11 No.1

This study aimed to assess the state of primary care in South Korea by determining a functional definition of primary care using the National HealthInsurance (NHIS) database. We categorized clinics into functional primary, specialized, and gray-zone clinics according to the degree ofcomprehensive care provided by the clinic. The number of clinics per 100,000 persons for the functional primary, specialized, and gray-zone clinicswere 19.7, 28.4, and 10.6, respectively. The departments that had the highest number of functional primary clinics included general practitioners,departments of internal medicine, family medicine, pediatricians, and general surgery. The proportion of patients who had a functional primaryclinic as their most frequent provider was 29.8%. A functional definition of primary care clinics may assist in assessing the state of primary care inSouth Korea, as well as helping to determine and predict the effects of public health policies. Future studies should investigate the association offunctional primary clinics with care quality and patient health outcomes in order to validate the functional definition of primary care. Furthermore,the addition of preventive practices, patient referral, and transfer-related information in the National Health Insurance Service database would bebeneficial in developing and refining a more detailed and accurate definition of primary care from a functional perspective. 국민건강보험공단 자료를 통해 국내 일차의료 현황을 파악하기 위해서는 기능적 일차의료에 대한 정의가 필요하다. 진료 영역의 포괄성을 기준으로 의원급 의료기관을 기능적 일차의료기관, 특성화 의원, 경계성 의원으로 분류하였다. 그 결과, 인구 10만명당 기능적 일차의료는 19.7개, 특성화 의원은 28.4개, 경계성 의원은 10.6개로 나타났다. 기능적 일차의료를 주로 담당하는 진료과목은 일반의, 내과, 가정의학과, 소아청소년과, 외과의 순서로 나타났다. 기능적 일차의료기관을 주치의로 하는 환자는 전체환자의 29.8%에 해당하였다. 의원급 의료기관의 분류는 국내 기능적 일차의료의 현황을 파악하고 향후 정책의 효과를 평가하는 데에 활용될 수 있을 것이다. 이와 같은 정의가 타당성을 가지기 위해서는 환자의 관리 수준이나예후와 연관되었다는 비교 연구가 필요하다. 또한 국민건강보험공단 자료에 예방활동, 의뢰 및 회송에 대한 정보 등이 추가된다면, 기능적 일차의료에 대해서 좀 더 발전된 정의가 가능할 것으로 기대된다

수익성과 유동성을 조정한 5요인 모형의 한국주식시장 타당성 연구

윤재문,원재환,이인석 한국경영교육학회 2016 경영교육연구 Vol.31 No.6

[Purpose]This study tries to analyze empirically the most suitable factors and models in explaining the expected rate of return in Korean stock markets focusing on a 5-factor model presented by Fame and French(2015). [Methodology]This study constructs the variables through the FN Guide and in order to know the most appropriate model for the Korean stock market, and the model presented by the existing previous study and the model presented by this study are compared and analyzed for verification. [Findings]The results of this study are as follows: First, we find that the existing profitability variable(OP) is not significant in the domestic stock market. Second, it is verified that net profit to net worth ratio(ROE), that is a substitute variable for this, shows a better positive relationship than the existing profitability variable(OP) in the state of controling the value stock factor. Third, the value stock factor(B/M) is shown not to provide a significant risk premium and as a result of verification of a model including turnover as a substitute variable, it is found that it provides a strong liquidity premium. [Implications]It implies, in terms of investor’s decision criteria, that net income(NI) during the sample period is more important, and it means in the Korean stock market that the market risk and the related turnover reflect such systematic risk well. [연구목적]본 논문에서는 Fama and French(2015)가 제시했던 5요인 모형을 중심으로 하여, 한국주식시장의 기대수익률을 설명하는데 어느 요인과 모형이 가장 적합한지에 대해서 실증분석하고자 한다. [연구방법]본 연구는 에프앤가이드를 통해 변수를 구성하였고 한국주식시장에 어느 모형이 가장 타당하지를 알기 위해, 기존의 선행연구에서 제시한 모형과 본 연구에서 제시하는 모형을 비교분석하며 검증하였다. [연구결과]본 논문에서 검증한 결과는 다음 3가지와 같다. 첫째, 기존의 수익성 요인(OP)가 국내 주식시장에서 유의하지 않음을 발견하였다. 둘째, 이에 대한 대체변수인 자기자본이익률(ROE)은 가치주요인을 통제한 상태에서 기존의 수익성 요인(OP)보다 더 나은 정(+)의 관계를 보임을 검증하였다. 셋째, 가치주 요인(B/M)이 유의한 위험프리미엄을 제공하지 않았고 이에 대한 대체 변수로 거래회전율(Turnover)을 포함하여 모형을 검증한 결과 강한 유동성 프리미엄을 제공함을 발견하였다. [연구의 시사점]이를 통해 투자자들의 결정 기준에 있어서 재무적 비용까지 포함한 당기순이익(NI)이 더 중요함을 알게 되었고, 거래회전율(Turnover)이 한국주식시장의 체계적 위험을 잘 반영하였다.

한국인의 심뇌혈관질환 위험도 예측 및 활용: 국가건강검진 건강위험평가를 중심으로

윤재문,유태곤,오승원,조비룡,김은영,황인섭 대한의사협회 2017 대한의사협회지 Vol.60 No.9

Health risk appraisal (HRA) is a systematic approach for collecting information regarding individual risk factors, predicting the probability of disease occurrence and death, and linking patients with interventions to promote health and prevent disease. Because the risk factors of cardiovascular disease are well established, several cardiovascular disease risk prediction models have been developed over multiple decades. The health risk appraisal prediction model of the Korean national health screening program will be revised and updated using the latest well-validated studies to reflect the current characteristics of the Korean population and to improve the effectiveness of education and behavioral modifications. It is necessary to provide various tools such as a web page and smartphone application to increase the utility of this program in the future

일차의료에서 의료행위의 가격과 가치

윤재문 대한가정의학회 2023 Korean Journal of Family Practice Vol.13 No.1

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Antidepressant Use and Diabetes Mellitus Risk: A Meta-Analysis

윤재문,조은결,이현기,박상민 대한가정의학회 2013 Korean Journal of Family Medicine Vol.34 No.4

Background: Epidemiologic studies have reported inconsistent findings regarding the association between the use of antidepressants and type 2 diabetes mellitus (DM) risk. We performed a meta-analysis to systematically assess the association between antidepressants and type 2 DM risk. Methods: We searched MEDLINE (PubMed), EMBASE, and the Cochrane Library (through Dec 31, 2011), including references of qualifying articles. Studies concerning the use of tricyclic antidepressants (TCAs), selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), or other antidepressants and the associated risk of diabetes mellitus were included. Results: Out of 2,934 screened articles, 3 case-control studies, 9 cohort studies, and no clinical trials were included in the final analyses. When all studies were pooled, use of antidepressants was significantly associated with an increased risk of DM in a random effect model (relative risk [RR], 1.49; 95% confidence interval [CI], 1.29 to 1.71). In subgroup analyses,the risk of DM increased among both SSRI users (RR, 1.35; 95% CI, 1.15 to 1.58) and TCA users (RR, 1.57; 95% CI, 1.26 to 1.96). The subgroup analyses were consistent with overall results regardless of study type, information source, country,duration of medication, or study quality. The subgroup results considering body weight, depression severity, and physical activity also showed a positive association (RR, 1.14; 95% CI, 1.01 to 1.28). A publication bias was observed in the selected studies (Egger’s test, P for bias = 0.09). Conclusion: Our results suggest that the use of antidepressants is associated with an increased risk of DM.

Educational Disparities in Distribution of Cardiovascular Risk Factors and Quality of Care in Korean Adults: Korean National Health and Nutrition Survey IV

윤재문,김지혜,서범석,박상민 대한가정의학회 2013 Korean Journal of Family Medicine Vol.34 No.1

Background: The purpose of this study was to investigate how educational status influences cardiovascular risk factors and care of diabetes mellitus and hypertension. Methods: From Korean National Health and Nutrition Survey IV, we obtained survey results of 6,835 men and 9,067 women more than 30 years old. We performed multivariate logistic regression to compare cardiovascular risk factors and care of hypertension and diabetes respective to educational status. Results: There were disparities in cardiovascular risk factors by educational status. In men, impaired fasting glucose, high triglyceride, and smoking were less frequently found in the highest educated group than in the middle educated group. In women, the prevalence of abdominal obesity, impaired fasting glucose, high blood pressure, high triglyceride, and metabolic syndrome among the highest educated group were significantly lower. The proportion of those with proper physical activity in the highest educated group was found to be less than that of the middle educated group, regardless of gender. For care of diabetes mellitus and hypertension, disease recognition and treatment were lower among the lowest educated group in men, while these disparities were not shown in women. Instead, the lowest educated group in diabetic women received screening exams for eye and kidney complications less than the middle education group. In both genders, the high education group had a higher chance of receiving education about diabetes mellitus. Conclusion: There were educational disparities in cardiovascular risk factors and care of hypertension and diabetes mellitus. The disparities were found to be different by gender.