액티브시니어 주거선호 요인에 관한 탐색적 분석

민정원,박태원 한국도시부동산학회 2023 도시부동산연구 Vol.14 No.4

This study examined the concept and lifestyle characteristics of the active senior class, which is emerging in Korea, where the world's best super-aged society is under way, and then conducted exploratory factor analysis based on the final 32 preliminary factors derived from the preliminary survey. The first factor is 'eco-friendly and external space', and detailed components are abundant landscaping and planting (0.750), health-friendly exercise facilities (0.714), and nature-friendly external spaces (0.698). The second factor is 'medical facilities and functions', and detailed components are elevator and escalator mobility (0.710), access to large and general hospitals (0.707), and whether or not to secure a medical emergency response system (0.693). The third factor is 'lifestyle', and detailed components include the possibility of linking talent sharing and volunteer activities (0.693), consideration of single-person households (0.691), and community activity facilities (0.661). The fourth factor is 'operational management', and detailed components are various small and medium-sized equilibrium (0.751), real estate sales and rental prices (0.646), and housing maintenance convenience (0.623). Guest houses and social activity facilities for other visitors are not grouped into multiple factors in terms of simplification of the composition of the factors, but they are considered as additional detailed items to consider. A comprehensive analysis of the results of exploratory factor analysis on active seniors is conducted, and active seniors currently have physical health and relaxed economic power. As a result of factor analysis, the analysis results that the first factor (eco-friendly and external space) prefers a residential environment rich in eco-friendly ecological and leisure factors support this. In addition, although he is a healthy senior at present, the preference for the second factor (medical facilities and barrier-free) is interpreted as a major analysis result due to the uncertainty that his health can deteriorate at any time. The fourth factor (maintenance) is an essential item related to economic burden capacity, and can be said to be a detailed preference factor that explains the characteristics of active seniors as a rational economy.

골 성숙도 판별을 위한 심층 메타 학습기반의 분류 문제 학습 방법

민정원,강동중 한국멀티미디어학회 2018 멀티미디어학회논문지 Vol.21 No.2

In this paper, we propose a method to classify the skeletal maturity with a small amount of hand wrist X-ray image using deep learning-based meta-learning. General deep-learning techniques require large amounts of data, but in many cases, these data sets are not available for practical application. Lack of learning data is usually solved through transfer learning using pre-trained models with large data sets. However, transfer learning performance may be degraded due to over fitting for unknown new task with small data, which results in poor generalization capability. In addition, medical images require high cost resources such as a professional manpower and mcuh time to obtain labeled data. Therefore, in this paper, we use meta-learning that can classify using only a small amount of new data by pre-trained models trained with various learning tasks. First, we train the meta-model by using a separate data set composed of various learning tasks. The network learns to classify the bone maturity using the bone maturity data composed of the radiographs of the wrist. Then, we compare the results of the classification using the conventional learning algorithm with the results of the meta learning by the same number of learning data sets.

신호등 인식을 위한 CNN기반의 색 검출 방법

민정원,박제강,강동중 제어로봇시스템학회 2017 제어로봇시스템학회 국내학술대회 논문집 Vol.2017 No.5

전제의 접근방법과 분석상의 문제점

민정원 이화여자대학교 독어독문학회 1993 Echo Vol.- No.6

태내 산화-항산화환경이 4세 소아 행동발달에 미치는 영향

민정원,유재선,김영주,박은애,김의정,이화영,장남수,하은희,박혜숙 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.3

Objectives We aimed to define the effects of antioxidant vitamins and oxidative stress in the intrauterine period on childhood neurobehavioral development. MethodsZZ The behavioral status of 100 children (aged four) at Ewha Womans University Mokdong Hospital in Korea was examined using the K-CBCL. Their maternal vitamin and oxidative stress Status were analyzed at midterm as intrauterine circumstance indices. The relationship between intrauterine condition and childhood behavioral development was analyzed using a general linear model. ResuItsZZ K-CBCL scores were lower in the group which took high levels of maternal vitamins B_(6) and B_(12) than scores in the group which too low levels of these vitamin. In contrast, the group with high maternal oxidative stress exhibited higher scores in behavioral problem scales. After adjusting for inborn and childhood environmental covariates, K-CBCL differences were statistically significant in the B_(2) group comparison (high group vs. low group ; total problem : 47.01±1.0 vs. 53.0±1.8, internalizing Problem 46.5±1.0 vs. 51.2±1.8). In addition, significant highest means of K-CBCL were in low vitamin and high oxidative stress group than other combined groups. ConcIusionZZ We have established a relationship between maternal vitamins and oxidative stress during pregnancy, and a 4 year-old child's behavioral development. This suggests that preventive efforts during pregnancy are influential on early childhood behavioral problems.

태아기 자궁내 성장지표와 신생아 혈압과의 관련성

민정원,박은애,공경애,박보현,홍주희,김영주,이화영,하은희,박혜숙 대한소아청소년과학회 2006 Clinical and Experimental Pediatrics (CEP) Vol.49 No.9

Purpose : ‘Programming’ describes the process that stimulus at a critical period of development has lifelong effects. The fact that low birth weight links to the risk of elevated blood pressures in adult life is well known. This study aims to examine whether this link is evident in the newborn by investigating the relationship of the intrauterine growth indices and neonatal blood pressure(BP). Methods : We studied 127 neonates who were born at Ewha Womans' Hospital and their mothers enrolled our cohort study during pregnancy. Data on the mothers and details of the birth records were tracked and collected from medical charts. Neonatal BP was measured within 24 hours after birth. Results : Neonatal SBP was positively correlated to intrauterine growth indices; birth weight(BW)(r= 0.4), head circumference(HC)(r=0.4), and birth height(r=0.3). However, an inverse relationship existed, between HC/BW ratio and neonatal SBP(r=-0.4). After adjusting for the baby's sex, maternal BP, and gestational age, neonatal SBP still associated with intrauterine growth indices. SBP was 7 mmHg higher in the highest BW group(■90 percentiles) compared to the lowest group(<10 percentiles). On the other hand, SBP was 17 mmHg lower in the highest HC/BW group(■90 percentiles) compared in the lowest group(<10 percentiles). Conclusion : This study could not find the evidence that intrauterine growth retardation affect on elevated neonatal BP. It suggests that the initiating events of BP programming may occur during postnatal growth period. To identify the critical starting period that intrauterine growth retardation leads to elevated BP, a study tracking BP changes from birth to childhood is required. 목 적 : 성인의 심혈관질환은 태아발달 동안이나 이른 어린이 시기부터 시작된다는 태아프로그래밍 개념과 출생시 작게 태어난 경우에 성인기에 혈압이 상승된다는 연구들을 고려하여 볼 때, 출생시기부터의 혈압 변화에 대한 연구가 필요함을 느꼈다. 본 연구에서는 신생아의 여러 자궁내 발육 지표와 신생아의 혈압 관련성에 대해 살펴보고자 하였다.방 법 : 이화여자대학교 목동병원에 내원한 임산부 중 연구 참여에 동의한 산모를 대상으로 코호트를 구축하고 이들의 127명의 출생아에 대한 의무기록에 근거하여 자료를 추적, 수집하였고, 생후 24시간 이내에 신생아의 혈압을 측정하였다. 결 과 : 신생아 수축기 혈압과 태내 성장지표는 유의한 양의 상관관계를 보였다; 출생체중(r=0.4), 머리둘레(r=0.4), 출생신장(r=0.3). 그러나 체중대비 머리둘레 비는 신생아 혈압과 유의한 음의 상관관계를 보였다(r=-0.4). 아기의 성과 엄마의 혈압수준, 재태연령을 보정한 상태에서도 신생아 수축기 혈압은 태내 성장지표와 연관성을 보였다. 수축기 혈압은 출생체중이 가장 높은 군에서(90 백분위수 이상) 낮은 군과 비교하여(10 백분위수 미만) 7 mmHg 높았다, 한편 출생체중 대비 머리둘레의 비가 가장 높은 군(90 백분위수 이상)에서 낮은 군(10 백분위수 미만)에 비해 17 mmHg 낮게 나타났다.

휴먼에러: 효율성-안전성 역설 관점

민정원 한국전략경영학회 2023 전략경영연구 Vol.26 No.2

This study examines the paradox between efficiency and safety and explores how organizations should respond to this paradox. Drawing upon the theory of paradox, this study argues that operational human errors, which represent a lack of safety, can stem from institutional environments that emphasize efficiency, and that organizations should take a balance between efficiency and safety to mitigate the occurrence of operational human errors. Empirical analysis using the context of world nuclear power industry in 31 countries provides support these arguments. The study reveals that countries with a higher economic reliance on the industry are more prone to experiencing unplanned outages caused by human errors. However, this tendency diminishes for organizations that have well-established routines for pre-safety checks and those with fewer number of others for comparing efficiency performance or those with comparative others having lower efficiency. The results not only contribute to the theory of paradox by discussing the efficiency-safety paradox, an underdeveloped paradox relation, but also offer variable implications to help organizations prevent safety issues. 본 연구에서는 효율성과 안전성의 역설 관계 및 조직의 역설 관계 대응 방안에 대하여 논의한다. 구체적으로, 역설 이론(Theory of Paradox)을 바탕으로, 휴먼에러는 효율성을 강조하는 제도적 환경에서 발생하는 경향이 있으며, 이를 방지하기 위해서는 조직차원에서 효율성-안전성의 균형을 추구하기 위한 노력이 필요하다는 점을 주장한다. 이상의 주장을 실증 분석하기 위해, 31개 국가 원자력발전소에서 발생한 휴먼에러에 의한 비계획 운전정지 데이터를 이용하였다. 분석 결과, 소속 국가의 원전력 발전산업 의존도가 높아 발전소 운영의 효율성이 강조된 환경일수록 휴먼에러에 의한 운전정지가 발생하기 쉬운 것으로 나타났다. 이러한 경향은 사전 안전 점검을 위한 계획정지 시간이 길수록 완화되었으며, 효율성 실적을 비교할 같은 운영조직 내 발전소 유닛 수가 많고 이들의 효율성이 높은 조직환경일수록 강화되었다. 본 연구는 아직 충분한 이론적 논의가 이루어지지 못한 효율성-안전성의 역설 관계를 다룸으로써 기존 역설 이론을 확장하고, 조직의 주요 사회적 성과지표의 하나인 안전성을 제고하기 위한 전략적 시사점을 제공한다.

중국동포 성인여성과 한국 성인여성의 ‘빗속의 사람(PITR)’ 그림 반응특성에 따른 스트레스 대처능력에 관한 연구

민정원,정영인 한국미술치료학회 2019 美術治療硏究 Vol.26 No.2

This study aimed to examine the stress-coping ability of Korean-Chinese women and Korean women according to their “Person-in-the-Rain”(PITR) reaction characteristics and explored the applicability of the PITR. For this purpose, the PITR reaction and the Way of Coping Checklist measurements were conducted with 402 women living in the capital region (119 Korean-Chinese women and 283 Korean women). For data analysis, t-test and one-way ANOVA were conducted, with the Scheffe-test as a post-test. The results showed the following; First, in the comparison of the stress-coping abilities, Korean-Chinese women showed higher ability in problem-focused coping, emotion-focused coping and passive stress coping than Korean women. Second, for the stress-coping ability according to the PITR reaction characteristics, Korean-Chinese women showed significant differences in the size of the character and the degree of wind while Korean women showed significant differences in the intensity of rain, the presence of clouds, the area of clouds, the feeling of the picture and the mood of the person. These results indicate that the PITR reaction has partial applicability as a means to understand Korean-Chinese women’s stress-coping ability. 본 연구의 목적은 중국동포 성인여성과 한국 성인여성의 ‘빗속의 사람(PITR)’그림 반응특성에 따른 스트레스 대처능력의 차이를 알아보고, PITR 그림이 중국동포 여성의 스트레스 대처능력을 파악하는 도구로 활용 가능성이 있는지 탐색하는데 그 목적이 있다. 이를 위하여 수도권에 거주하는 중국동포 성인여성 119명, 한국 성인여성 283명, 총 402명을 대상으로 PITR 그림과 스트레스 대처능력 척도(WCC) 검사를 실시하였다. 자료 분석은 t검정, 일원변량분석과 사후검정으로 Scheffé-test를 실시하였다. 연구결과는 첫째, 중국동포 성인여성과 한국 성인여성의 스트레스 대처능력을 비교한 결과 중국동포 여성이 한국 여성보다 문제 중심적 대처와 정서 중심 대처, 소극적 대처능력 전체가 높은 것으로 나타났다. 둘째, PITR 반응특성에 따른 스트레스 대처능력에서 중국동포 성인여성은 인물의 크기와 바람의 정도에서 유의미한 차이를 보였고, 한국 성인여성은 비의 세기, 구름의 유무, 구름의 면적, 그림의 느낌, 사람의 기분에서 유의미한 차이를 나타냈다. 이상의 연구결과를 통하여 PITR 그림이 중국동포 성인여성의 스트레스 대처능력을 파악하는 도구로서 부분적으로 활용 가능성이 있음을 알 수 있었다.

상하수도 `96 학술발표회 및 세미나 / Session (1) : Al 계통 응집제 존재하에서의 카올린 현탁액의 탁도제거 양상 및 표면 전기적 현상

민정원,김동수,곽종운 대한상하수도학회 1996 학술발표회 및 세미나 Vol.1996 No.-

주의력결핍 과잉행동장애 환아 평가시 지능검사의 유용성에 관한 예비연구

민정원,이원혜,홍민하,반건호 대한소아청소년 정신의학회 2012 소아청소년정신의학 Vol.23 No.4

Objectives:We analyzed the usefulness of intelligence test in assessing attention-deficit hyperactivity disorder (ADHD). Methods:The medical records of 312 patients with ADHD who visited the child psychiatry department in one university hospital in Seoul, Korea, were reviewed. Demographic data and scores on the Korean Wechsler Intelligence Scale for Children-III (K-WISC-III) and Korean-Conners’ Parent Rating Scale (K-CPRS) were analyzed. To assess the relationship with comorbidities, AD-HD subjects were classified as; externalizing disorders, internalizing disorders, tic disorders, and no comorbidities. Results:Verbal intelligence quotient (VIQ) was significantly higher than performance IQ (PIQ)(102.6±14.44, 99.2±14.48, p<.001). Using mean scatter method, subtest scores such as ‘information, similarities, digit span and coding’ were significantly lower than mean scores of sum of subtests of VIQ or PIQ (p<.05). Regarding comorbidities, children with externalizing disorders exhibited. Lower scores on ‘information and vocabulary’ than other groups (p=.008). Children with no comorbidities exhibited higher scores on ‘similarities and object assembly’ than children with externalizing/internalizing disorders (p=.001) and also on ‘comprehension’ than children with externalizing disorders (p=.006). For subtypes of ADHD, children with hyperactive-impulsive type had higher scores on ‘comprehension’ than children with inattentive and combined type (p=.004). Conclusion:These results suggested that intelligence test might provide useful information for assessing ADHD.