전치태반의 임상적 고찰

정갑인,이해혁,이효환,유정완,남계현,이임순,이권해 순천향의학연구소 1998 Journal of Soonchunhyang Medical Science Vol.4 No.2

Objective : Our purpose was to make preparations of what for proper emergency care and delivery in order to improve maternal and fetal well-being. Methods : The study was undertaken for the clinical evaluation and statistical analysis on the patients with placenta previa who had been admitted and delivered at Soonchunhyang University Hospital from January, 1994 to May, 1998, retrospectively. Results : The incidence of placenta previa was 2.0%. Placenta previa has occurred more often in multigravida(92%) than primigravida(8%). Vaginal bleeding was most frequent(37.3%) presentation. The mean gestational age at the first bleeding episode was 31~35 weeks(46.4%). The type of placenta previa was totalis (31.3%), Partialis(18%), marginalis(32.7%), low lying(18%). Conclusion . This study indicates that the obstetrician and the pediatrician should be prepared for emergency care and delivery of the placenta previa patients, with the improvement of delivery room and neonatal intensive care unit.

폐경후 여성에서 내피세포 의존성 혈관이완 반응에 에스트로겐의 급성효과 및 엔도쎌린(Endothelin)-1과의 연관성

강진호,김범수,이영욱,금동극,정현욱,이혜숙,이만호,박정로 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.7

도우미의 유니폼 착용실태 조사 : 내레이터 모델을 중심으로

정혜영,이명희 한국의류산업학회 2004 한국의류산업학회지 Vol.6 No.6

This study was carried out to research the actual condition of narrator models' wearing uniform, targeting on the narrator models who are being currently active and are from 19-year-old to 30-year-old. A poll was performed through visiting internet circles and spots, and the characteristic of objects, the form of uniform, attitude on uniform, dissatisfaction index on wearing uniform and preference index on wearing uniform were researched. It was carried out from August 18, 2003 to August 31, 2003. In order to perform this study, 161 questionnaires were used in all, and frequency analysis was implemented using SPSS 10.0. The objects of study were composed of female. Those who are from 21-year-old to 25-year-old accounted for 74.5%, and those who have career from 2 years to 3 years accounted for 75.5%. In respect to attitude on wearing uniform, affirmative answers, such as a sense of belonging, a pride in activity and increase of efficiency, accounted for 68.8%. On the other hand, in respect to a harmonization between uniform and work, just the 39.8-percent showed affirmative reaction. Concerning the functionality of uniform, such as retaining warmth and ventilating, dissatisfaction index showed very high value; it is judged that it should be improved henceforth. Working postures were researched, following the order of standing posture and arm-using posture. In inconvenient actions, bending down and moving arms were orderly pointed out. With regard to the dissatisfaction of size, busts, the length of skirt and waist girth were orderly pointed out. Likewise, considering the parts of which room is required, bust, hip girth and waist girth were orderly pointed out. As to the points that should be bettered, design and functionality were orderly pointed out. In respect to materials of uniform, sweat-absorption material, light material and well-ventilated material were orderly suggested.

초등학교 6학년 과학 수업의 사회적 참여구조 유형

이혜정,양일호,서형두,정재구 한국초등과학교육학회 2005 초등과학교육 Vol.24 No.2

The purpose of this study was to investigate the interaction patterns between teachers and students appeared in sixth grade elementary science lessons. To this end, we set research questions as what are the types of SPS (Social Participation Structure) between teachers and students in the class. Eighteen elementary science lessons were observed. Data were collected by video recordings and observation method. The result showed that the types of SPS were classified into nine. 1) A teacher initiates the whole students into interaction with him. 2) The whole students keep silent or carry out specific activities under the teacher's direction. 3) A teacher initiates some students into interaction. 4) A teacher names specific students to read a text. 5) A teacher initiates the whole students into group interactions. 6) Students interact with each other irrespective of the teacher's intention. 7) Students initiate a teacher into interaction with them. 8) A teacher intervenes during the students' activities and this intervention, in turn, produces interactions between the teacher and the students. 9) A teacher directs the whole class to read a learning goal or a learning material. This study shows that SPS-1 and SPS-3 are the most frequently observed interaction patterns in the elementary science lessons.

과학 영재의 세포 설명에 나타난 글쓰기 특성 분석

이혜정,심규철 韓國英才學會 2012 영재교육연구 Vol.22 No.1

The purpose of this study was to analyse characteristics of explanatory writing of scientifically gifted students who participated in gifted educational programs. Considering aspect of content of their explanations about cell, many of them explained the common characteristics of animal and plant cells, but a few of them did cellular characteristics of one kind of animal and plant. Some gifted students regarded cell membrane function as that of cell wall, and had a misconception that the cell was the smallest unit to consist human body. In terms of the structure of explanation, most of them didn't know the structural characteristics of explanatory writing. Finally, more than 50% of them had written using various ways to explain cell such as classifying, comparing, contrasting and exemplifying. Especially, all biologically gifted students had creatively explained drawing a picture. It was findings that the explanatory writing could be used as the instrument to evaluate knowledges of gifted students and suggested the elements of writing to teach scientific explanatory writing. 본 연구의 목적은 중학교 과학 영재 프로그램에 참여하는 학생들의 설명하는 글쓰기에 나타난 특성을 분석하는 것이다. 중학교 과학 영재들의 세포에 대한 설명을 분석한 결과, 내용적 측면에서 다수의 학생들이 동물 세포와 식물 세포의 공통적인 특징과 구별되는 특징을 설명하고 있었다. 그러나, 일부 과학 영재 학생은 동물 세포와 식물 세포 중 한 가지 세포의 특성만을 설명하거나, 세포막과 세포벽의 기능을 같게 보거나, 세포는 우리 몸을 이루고 있는 가장 작은 단위라는 등 세포에 대한 오개념을 갖고 있는 것으로 나타났다. 구조적 측면에서는 대부분의 과학 영재 학생들이 설명문의 체재를 명확히 알지 못한 채 설명하는 글쓰기를 완성하였다. 마지막으로 표현 방법을 분석한 결과, 50% 이상의 학생들이 분류, 비교, 대조, 예시 등의 다양한 방법을 이용하여 설명하는 글쓰기를 작성한 것으로 나타났다. 특히, 모든 영재 학생들이 그림을 이용한 설명 방법을 사용하였는데, 기존의 연구 결과에서 나타나지 않은 독창적인 것임을 알 수 있다. 본 연구의 결과는 과학 영재 학생들의 지식 평가 도구로 설명하는 글쓰기가 활용될 수 있다는 가능성을 제안할 뿐만 아니라, 설명하는 글쓰기를 지도할 때 활용할 수 있는 글쓰기 요소에 대한 교육적 시사점을 제공한다.

생쥐 뇌조직 체외배양법을 활용한 향산화제의 향독성효과에 관한 연구

이수현,박정은,김희옥,서혜원,조경혜 서울여자대학교 자연과학연구소 2000 자연과학연구논문집 Vol.12 No.-

In an effort to establish an in vitro model of Parkinson's disease (PD), we prepared slice cultures of midbrain from newborn mouse. The slice section containing substantia nigral region was cultured for 10days. The striatal culture was grown to preserve the distribution of interneurons with minimal contamination of any other brain tissue. Using this explant culture containing both glial cells and nitro-striatal dopamine neurons, the protective effect of antioxidant pineal hormone and melatonin on 1-methyl-4-phenyl-1, 2,3,6-tetrahydropyridine (MPTP) -induced loss of the dopamine neurons was investigated. MPTP selectively damaged dopaminergic neurons, as indicated by immunoblot and immunohistochemistry for glial fibrillary acidic protein (GFAP) and tyrosine hydroxylase, the marker enzymes for glial and dopaminergic neurons, respectively. Twenty-four-hour treatment of MPTP (50 μM) in the explant culture induced 37% loss of dopaminergic neurons while no apparent damage was observed in glial region. Type B monoamine oxidase (MAO-B) that resides in glial cells, produces free radicals during catecholamine metabolism and also oxidizes MPTP to its active form, MPP+, was activated by 2.2 times after MPTP treatment. Melatonin was able to recover both the dopaminergic neuronal loss and the elevated MAO-B activity level fully to the untreated control level. Similar observation was made bur the co-treatment of vitamin E with MPTP, suggesting the generation of oxygen radical species by MPTP. On behalf of pursuing molecular mechanisms of Parkinsonism, the data illustrate the proposed mechanism of MPTP-induced dopaminergic cell death ; namely, MPP+ that is processed by MAO-B in glial cells is taken up avidly by dopaminergic neurons and causes a toxic effect at least partly, if not mostly, through oxidative stress. The culture system, therefore, can serve as an experimental model of PD in which the putative neuroprotective effects of antioxidants can be investigated. This model is also useful for screening novel drugs and growth factors without a massive sacrifice of animals, and ultimately for developing neuroprotective therapies.

여대생의 아침식사 실태와 이상적 아침식사 유형을 위한 연구 : l. 아침식사 행동을 중심으로

이진실,정혜정 한국식생활문화학회 2001 韓國食生活文化學會誌 Vol.16 No.4

This study was carried out to investigate breakfast behaviors of female college students. 500 questionnaires were distributed and 417 were used for statistical analysis(SAS program). This survey was conducted from June, 2000 to October, 2000. 44.7% of the respondents considered lunch to be the most important meal. 51.6% students thought that people must eat breakfast. 41.6% of the students always eat breakfast but 22.1% do not eat breakfast. Conventional type of breakfast was found to be the most popular (67.6%). But ￦400,000 monthly allowance group(P<0.05) and self prepared breakfast group preferred Western style breakfast. The main reason for eating breakfast was for health(34.6%). The group of students with less monthly allowance were more likely to skip breakfast due to lack of time (p<0.01). Physical discomforts after skipping breakfast were: lack of strength(42.5%), stomach ache(36.3%), giddiness(9.1%), and recovered temper(12.1%). In conclusion, it is needed that a convenient and nutritional education should be developed for college students' health.

골프 선수들의 체격·운동능력 및 신체구성에 관한 연구

이재호,김광중,김해중,신승남 한국스포츠리서치 2001 한국 스포츠 리서치 Vol.12 No.4

The purpose of this study was to observe the physique, motor ability and body composition of Golfers. The subjects were healthy 20 male Golfers and 20 male non athletes. Every subject performed continuous incremental work laod test by bicycle ergometers. They were warm up with 50 rpm at 25 watt for 2 minutes and gradually increased 50 watt every 3 minutes until exhausition(?). They were tested the motor ability and body composition. They results obtained by this study were as follows ; 1. Physique Golf playes body height showed to be 176.45±5.62cm, body weight was 77.14±13.86kg, chest girth was 96.32±8.37cm, BMI was 22.14±2.70kg/㎡. 2. motor ability Golf playes motor ability showed to be 69.41±9.17beats/min, in HRRest, 194.74±6.97beats/min in HRmax, 46.47±6.01ml/kg/min in VO_2max. The grip strength showed to be 48.70±5.64kg, back strength was 124.95±17.14kg, sargent jump test 58.24±6.98cm, jump step test 22.17±2.76ti, sit up 45.17±8.17ti, one leg balance with eyes close 45.89±18.87sec, trunk flexion 16.81±2.16cm. 3. body composition Golf playes % bodyfat showed to be 11.97±2.50%, body fatkg was 9.68±2.24kg, LBM, 67.45±3.94kg, TBW, 45.47±2.79ℓ.

코스튬플레이어들의 라이프스타일과 행동특성에 관한 연구

정혜영,정희경,서용한,오희선,이명희 한국의류산업학회 2004 한국의류산업학회지 Vol.6 No.1

Costume plays have been of interest to young people in the recent years. The much increased interest in costume plays has prompted many researchers to verify the behavior characteristics of costume players Despite the importance of the costume play, there has been no systematic study of it. The purpose of this study is to demonstrate the influence of life style on behavior characteristics of the costume player. The subjects of this study were members of the web sits(wwwcosmakercom). A total of 155 subjects responded to the questionnaires and the 143 responses were used for further data analysis. The data was analyzed by factor analysis, cluster analysis, and one-way ANOVA. These were the results of the stud: First, costume player groups are classified into three sub-dimensions: other people-oriented, show-off oriented, and exclusive ego oriented. Second, the behavior characteristics of costume player are significantly shown among those groups.

이동평균모형의 붓스트랩 추정에 관한연구

김혜중,이승주,김명철 동국대학교 자연과학연구소 1991 자연과학연구 논문집 Vol.11 No.-

붓스트랩(bootstrap) 방법에 의한 이동평균 모형 추정 알고리즘을 제시하였다. 경험적 자료와 시뮬레이션 자료를 통하여 잭나이프 방법과의 유효성을 비교하였고, 이동평균 모형의 모분포의 가정에 대한 붓스트랩 추정의 로버스트성을 Monte Carlo 실험으로 비교해 보았다. Bootstrap method for the estimation of the moving average process is suggested. Based on an empirical and a simulated data set, relative merits of the method over the jackknife method is compared. Its robustness to the population distribution is also studied by a Monte Carlo experiments.