• 제목/요약/키워드: common index terms

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커피관장이 변비정도의 변화 및 만족도에 미치는 영향 (The Effect of Coffee Enema on Constipation)

  • 김호준;이명종;송미영
    • 한방비만학회지
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    • 제5권1호
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    • pp.31-45
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    • 2005
  • Background and Objectives : Constipation is a common digestive disorder and enema is one of the external intervention for constipation. Coffee enema was originated by Dr. Gerson for the purpose of colon cleansing and detoxification. However there has been no study about the effect of coffee enema on constipation. Therefore, this study was planned to evaluate the effect of coffee enema on constipation in the terms of constipation degree and satisfaction questionnaire. Methods : 42 patients were treated of the coffee enema 2 times a week. The constipation score(Constipation Assessment Scale) and frequency of defecation were checked 3 times (before treatment, 1 week and 1 month later). The satisfaction score was also checked 1 week and 1 month later. The interval differences of constipation score between pre- and post-treatment according to body mass index were also analyzed. Results and Conclusions : The constipation scores, frequency of defecation scores checked 1 week and 1 month later were significantly(p<0.01) improved as compared with those before the treatment. The satisfaction scores were close to 'moderately satisfied' 1 week and 1 month later. The scores of 6 parameters in constipation assessment scale, frequency of defecation scores and satisfaction scores were maintained until 1 month later. There was no significant difference in the change of constipation scores between normal BMI and overweight group. 4.2% of the patients reported adverse effects, which were nausea, abdominal distension each.

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임신 중기의 아연 영양상태가 임신결과에 미치는 영향 (Zinc Status of South Korean Women in the Second Trimester and the Effect of Those on Pregnancy Outcome)

  • 이현숙
    • Journal of Nutrition and Health
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    • 제38권7호
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    • pp.578-585
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    • 2005
  • Maternal zinc deficiency is relatively common worldwide, but its consequences for pregnancy outcome are not established. The purpose of this study was to examine the effect of zinc status in the second trimester on pregnancy outcome. Subjects were 248 pregnant Korean women (25-28 wk gestation). Cord blood was collected from subgroup of 69 women and pregnancy outcome data were obtained from 185 babies. Anthropometry measurement, dietary intake, and biochemical characteristics of pregnancy and cord serum substances were measured. The subjects were divided into quartiles on the basis of maternal serum Zn concentration; $ZnQ_1$ (< 25 percentile), $ZnQ_2$ ($26\~50$ percentile), $ZnQ_3$ ($51\~75$ percentile), and $ZnQ_4$ ($76\~100$ percentile). Zn groups were compared in terms of various maternal factors, concentrations of cord serum substances, and pregnancy outcome. Maternal serum Zn concentration was $118.4\;{\pm}\;35.5\;{\mu}g/dl$ as mean. Intake of Zn was lower than Korean RDA. The rate of Zn deficiency among all subjects was $8.5\%$. Maternal serum Zn levels belonged to normal range. Cord serum Zn level was about $154.7\%$ of maternal serum level. Intakes of energy, calcium, iron, folic acid, and riboflavin did not meet the Korean RDA for pregnant women by gestational age. The mean birth weight of neonates is 3083 $\pm$ 697 g, of whom $9.1\%$ were of low birth weight (< 2,500 g). Maternal serum Zn level was positively correlated with pre-pregnancy weight, pre-pregnancy body mass index, and vitamin C intake (p < 0.05). $ZnQ_1$ group had significantly lower maternal serum iron concentration and higher cord serum cholesterol than those in other groups. Maternal serum Zn level, cord serum Zn level, and dietary Zn intake were no related to the pregnancy outcome. The birth weight had a correlation with the maternal hemoglobin and albumin concentration. In conclusion, at this study, we could not find the association with maternal Zn status in 2nd trimester and pregnancy outcome.

2015 개정 교육과정에 기초한 중학교 정보 교과서의 탐구성 분석 (The Analysis of Inquisitive Tendency in Middle School Informatics Textbooks Based on the 2015 Revised National Curriculum)

  • 강오한
    • 컴퓨터교육학회논문지
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    • 제22권2호
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    • pp.21-28
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    • 2019
  • 본 연구에서는 2015 개정 교육과정에 기초하여 개발된 중학교 '정보' 교과서의 '문제 해결과 프로그래밍' 단원에 대한 탐구성을 분석하였다. 4종 교과서에 Romey 분석법을 적용하였으며, 4개 분석요소인 본문, 자료, 활동, 평가에 대한 분석을 수행하였다. 연구 결과에 따르면, 본문, 자료, 활동, 평가의 분석요소에서 각각 2종, 3종, 3종, 4종의 교과서가 탐구성이 높은 것으로 나타났다. Romey 지수를 기준으로 2종 교과서의 본문 분석요소가 0.185와 0.413으로 낮게 분포되었으며, 자료 분석요소에서 1종 교과서가 0.147로 매우 낮았다. 활동 분석요소는 4종 교과서 중에서 3종이 0.969, 0.608, 0.627로 높게 나타났다. 평가분석요소는 4종 교과서가 각각 1.333, 1.268, 1.274, 0.764로 매우 높게 나타났다. 그리고 새롭게 개발된 교과서가 이전 교과서보다 탐구성이 향상된 것으로 나타났다.

Research Trends of Coronavirus: Bibliometric Analysis from 1989-2019

  • Singh, Shiv;Kataria, Sanjay;Dey, Tulika
    • International Journal of Knowledge Content Development & Technology
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    • 제11권4호
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    • pp.101-111
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    • 2021
  • The world is going through the most unprecedented time with the outbreak of novel Coronavirus disease (COVID-19), which has become a threat to millions. A Coronavirus is a group of viruses that cause a variety of diseases in mammals and birds leading to a range of illnesses in humans including common cold and more severe forms like severe acute respiratory syndrome Coronavirus (SARS-CoV), Middle East respiratory syndrome Coronavirus (MERS-CoV) and COVID-19, which are life-threatening. The virus gets its name from its shape which takes the form of a crown with protrusions around it. In December 2019, a pneumonia outbreak was reported in the Wuhan City of China, which was later traced to a novel strain of Coronavirus and termed as Novel COVID-19. It typically causes flu-like symptoms including fever, cough and shortness of breath and is transmitted through human-to-human and there is no cure for it till now. Thus, this bibliometric study has been carried out to analyze the research progress in Coronavirus and literature published during a period of 30 years (1989-2019). Data for the study were fetched from Web of Science(WoS) multidisciplinary database and the publication trends in terms of total articles, productive countries, institutions, journals, productive authors, most cited articles and authors, etc have been analyzed. In total, 4917 articles were retrieved; these were from 711 sources and were contributed by 14442 authors. The collaboration index was 3.11, which clearly indicates that there has been a lot of collaboration in this field. The most preferred journal for the study period was "Journal of Virology" and the maximum contribution has been from the University of Hong Kong.

코로나19 이후 ESG 투자 전략 평가: ESG 인덱스 성과를 중심으로 (ESG Investment Strategy Evaluation after Covid-19: Focusing on the ESG Indices Outcome)

  • 박준신;안재준;오경주
    • 지식경영연구
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    • 제22권4호
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    • pp.87-101
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    • 2021
  • ESG 투자가 금융시장의 대세이자 상식으로 부상하고 있다. ESG 투자는 기업의 재무실적 이외에 환경, 사회, 거버넌스 등 비재무적 요소를 투자의사결정에 반영하여 장기적 관점에서 사회의 지속가능성과 투자수익을 동시에 추구하는 투자방식이다. 본 연구는 일반적으로 알고 있던 ESG 투자의 특징이 코로나19를 계기로 어떻게 변화하고 있는지를 환경, 사회, 거버넌스 관점에서 살펴보았다. 이후 코로나19가 유가증권시장에 부정적 요인으로 작용하였는지 여부를 VAR 모델을 활용하여 규명하였다. 동시에 미국과 한국의 ESG 인덱스와 벤치마크를 수익성과 변동성 관점에서 분석하여 ESG 투자가 팬데믹 국면에서도 유효한 전략임을 확인하였다. 본 연구 결과는 팬데믹 이후에도 ESG 투자의 중요성이 변함없을 것이라는 점을 시사한다. 동시에 경영자들이 수동적 ESG 경영을 지양하고 지식경영을 토대로 한 전략적 ESG 경영에 나서야함을 시사한다.

관계형 XML 가지 패턴 질의를 위한 비트맵 인덱스와 질의 처리 기법 (Bitmap Indexes and Query Processing Strategies for Relational XML Twig Queries)

  • 이경하;문봉기;이규철
    • 한국정보과학회논문지:데이타베이스
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    • 제37권3호
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    • pp.146-164
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    • 2010
  • XML 데이터 량의 증가에 따라 DBMS를 이용한 XML 데이터의 저장 관리 기법들이 고안되었다. 하지만, 현재의 가지 패턴 질의 처리 알고리즘들은 XML 데이터를 태그 또는 임의 단위로 분할되고, 각 항목들이 특정 순서로 정렬된 역 리스트들을 입력으로 한다. 이러한 저장 기법의 불일치는 관계형 테이블에 나뉘어 저장되는 XML 데이터의 질의 처리에 이 알고리즘들의 적용을 어렵게 한다. 이 논문에서는 관계형 테이블에 저장된 XML 데이터에 대한 홀리스틱 가지 조인을 지원하기 위한 비트맵 인덱스와 이를 이용한 질의 처리 기법을 제안한다. 비트맵 인덱스는 많은 데이터베이스 시스템에서 지원하므로, 제안하는 인덱스와 가지 질의 처리 기법은 관계형 질의 처리 프레임워크에서 보다 이식이 용이하다. 제안하는 인덱스 기법은 압축을 통해 인덱스 크기를 줄이면서도 질의 처리시 압축해제가 불필요해 시간과 공간 효율적이다. 또한, 이 논문에서는 비트맵 인덱스만을 이용해 XML 노드들 간의 관계성을 식별함으로써, 가지 패턴 질의 처리를 레코드에 저장된 XML 데이터의 접근 없이 수행할 수 있는 혼합 인덱스를 제시한다.

Prediction Model of User Physical Activity using Data Characteristics-based Long Short-term Memory Recurrent Neural Networks

  • Kim, Joo-Chang;Chung, Kyungyong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제13권4호
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    • pp.2060-2077
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    • 2019
  • Recently, mobile healthcare services have attracted significant attention because of the emerging development and supply of diverse wearable devices. Smartwatches and health bands are the most common type of mobile-based wearable devices and their market size is increasing considerably. However, simple value comparisons based on accumulated data have revealed certain problems, such as the standardized nature of health management and the lack of personalized health management service models. The convergence of information technology (IT) and biotechnology (BT) has shifted the medical paradigm from continuous health management and disease prevention to the development of a system that can be used to provide ground-based medical services regardless of the user's location. Moreover, the IT-BT convergence has necessitated the development of lifestyle improvement models and services that utilize big data analysis and machine learning to provide mobile healthcare-based personal health management and disease prevention information. Users' health data, which are specific as they change over time, are collected by different means according to the users' lifestyle and surrounding circumstances. In this paper, we propose a prediction model of user physical activity that uses data characteristics-based long short-term memory (DC-LSTM) recurrent neural networks (RNNs). To provide personalized services, the characteristics and surrounding circumstances of data collectable from mobile host devices were considered in the selection of variables for the model. The data characteristics considered were ease of collection, which represents whether or not variables are collectable, and frequency of occurrence, which represents whether or not changes made to input values constitute significant variables in terms of activity. The variables selected for providing personalized services were activity, weather, temperature, mean daily temperature, humidity, UV, fine dust, asthma and lung disease probability index, skin disease probability index, cadence, travel distance, mean heart rate, and sleep hours. The selected variables were classified according to the data characteristics. To predict activity, an LSTM RNN was built that uses the classified variables as input data and learns the dynamic characteristics of time series data. LSTM RNNs resolve the vanishing gradient problem that occurs in existing RNNs. They are classified into three different types according to data characteristics and constructed through connections among the LSTMs. The constructed neural network learns training data and predicts user activity. To evaluate the proposed model, the root mean square error (RMSE) was used in the performance evaluation of the user physical activity prediction method for which an autoregressive integrated moving average (ARIMA) model, a convolutional neural network (CNN), and an RNN were used. The results show that the proposed DC-LSTM RNN method yields an excellent mean RMSE value of 0.616. The proposed method is used for predicting significant activity considering the surrounding circumstances and user status utilizing the existing standardized activity prediction services. It can also be used to predict user physical activity and provide personalized healthcare based on the data collectable from mobile host devices.

폐쇄성 수면무호흡증 여자 환자에서 렘수면 의존성 무호흡과 비의존성 무호흡의 호흡의 비교 (Comparison of REM Sleep-Dependent Obstructive Sleep Apnea Syndrome with Sleep Stage Non-Dependent One in Women Patients)

  • 박태준;정도언
    • 수면정신생리
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    • 제15권1호
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    • pp.25-32
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    • 2008
  • 렘수면 의존성' 폐쇄성 수면무호흡증(REMOSA)에 대한 연구는 일반적인 폐쇄성 수면무호흡증(OSAS)에 대한 연구에 비해 지난 10여 년 동안 활발한 편이 아니었으며, 그 중요성 역시 간과되어 왔다. REM-OSA가 남자에서보다 여자에서 좀 더 흔히 일어난다고 보고한 연구들은 있었으나, 아직까지 여자 환자군을 대상으로 한 연구는 없었다. 따라서, 이 연구에서는 폐쇄성 수면무호흡증 여자 환자군을 대상으로 하여 렘수면 의존성 무호흡증군(REM-OSA)을 렘수면 의존성이 없는 무호흡증군(SND-OSA)과 비교 연구하여 이 질환의 특성에 대해 살펴보고자 하였다. 방 법 : 2004년 10월부터 2006년 2월까지 서울대학교 병원 수면의학센터에서 야간 수면다원검사를 시행하여 폐쇄성 수면무호흡증으로 진단을 받은(AHI>5 ; AHI:apneahypopnea index) 여자 환자 53명중 비교 연구를 위해 경도(52와 AHI-NR<15(AHI-R : AHI during REM sleep, AHI-NR : AHI during non-REM sleep)을 동시에 만족하도록 기준을 설정하였고, 렘수면에 의존하지 않는 무호흡증환자(SND-OSA)군과 제반 변인들에 관해 비교 분석을 하였다. 그리고 산술적인 진단을 적용한 환자군과 육안판독으로 진단한 환자군도 비교하였다. 결 과 : 총 44명 중 산술적인 진단기준을 통해 REMOSA로 진단된 환자는 28명(63.6%), 육안 판독으로 진단된 환자는 24명(54.5%)이었다. 산술적 진단기준에 따른 REM-OSA군과 SND-OSA군 비교에서 두 군간에 저호흡지수, 무호흡-저호흡지수, 비렘수면 무호흡-저호흡지수, 총 수면시간, 총각성시간, 수면효율, 1단계 수면 분율, 2단계 수면 분율, 렘수면 단계 분율, REM 잠복시간에서 통계적으로 유의한 차이(p<0.05)가 있었다. 진단에 관여하는 변인인 무호흡-저호흡지수 비율(AHI-R/AHI-NR)에 영향을 주는 변인은 렘수면 단계 분율(B=0.537, p=0.002)이었으며, REM-OSA는 중증도가 경할수록(${\chi}^2=13.117$, p<0.001), 렘수면 단계 분율이 클수록(${\chi}^2=13.325$, p=0.001) 더 흔하게 진단되었다. 그리고, 산술적인 진단기준으로 REM-OSA를 진단한 결과와 육안 판독으로 진단한 결과 간에는 통계적으로 유의한 차이가 없었다(p=0.157). 결론 : 이 연구에서 살펴본 바로는 REM-OSA 환자군과 SND-OSA 환자군 간에 야간 수면다원검사로 산출한 수면 변인과 수면 구조의 유의한 차이가 있었다. 이 연구는 폐쇄성 수면무호흡증 여자 환자군을 대상으로 REM-OSA를 국내외 최초로 분석한 점에서 의의가 있다.

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어린이의 식습관(食習慣)이 체위(體位)에 미치는 영향(影響)에 관한 연구(硏究) (The Influence of Food Habits on Body Stature of Children)

  • 이미숙;모수미
    • Journal of Nutrition and Health
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    • 제9권1호
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    • pp.7-15
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    • 1976
  • The Purpose of this study was to determine every possible correlation between food habits and body statures of primary school children, aged ten years old. This study was conducted from July to October of 1975. In July, prepared questionaires concerning life style, anthropometry, food preference, and food behavior were distributed through school teachers to 425 children; 219 boys and 206 girls, in the 5th grade of three elementary schools in the city of Seoul. Then, in October, when subjects had been classified into underweight/obese by statistical analysis, mothers of obese or underweight children were interviewed by the authors to determine weaning history, daily food consumption of their children, and opinions of various snacks for children. Analysis of results in terms of correlation coefficient, chisquare test and percentage calculations, are as follows: 1. Physical growth and development Boys Girls Height (cm) $134.8{\pm}5.74\;134.4{\pm}5.97$ Weight (kg) $30.0{\pm}4.27\;29.5{\pm}5.16$ Chestgirth (cm) $64.1{\pm}3.59\;63.3{\pm}3.81$ Arm circumference (cm) $18.3{\pm}1.61\;18.2{\pm}1.70$ Triceps skinfold thickness (mm) $10.9{\pm}5.13\;12.7{\pm}4.86$ Various indices of nutrition such as relative weight, relative chestgirth, $R{\ddot{o}}hrer's$ index, Kaup index, Vervaeck index were determined. 2. Food habits 1) Food $preference{\cdots}{\cdots}A$ varying number of foods were selected from 60 items were accepted. It was found that the food which children liked best was fruit and snacks were popular one. Lowest ranking among LIKED foods were from strongly flavored vegetables and organ meat. In general, girls had more food dislikes than did boys. Selected as liked foods were fruits, rice noodle soup, biscuits, and peanuts. Disliked foods were liver, green onions, onions, green pepper, mushrooms, oysters, shellfish, and pork. Items which children never ate before were liver, mushrooms, fish cake, boiled rice mixed with sorghum, mayonnaise, and fresh water firsh. Reasons which children gave for dislike were undesirable flavor and odor. 2) Food $behavior{\cdots}{\cdots}It$ was found that boys liked sweet and salty flavors more than did the girls who more often liked sour flavor. The majority of children enjoyed evening meals more than lunch and breakfast. A number of children skipped breakfast because of lack of appetite or lack of time before going to school. Snacks were the most popular food, especially among girls. Their snacking habits were formed by the encouragement of the mother, and the relieve boredom. Educational backgrounds of mothers and family economical levels of children were remarkable correlated with mothers' attitudes toward feeding of children. There were several interesting findings relating body stature to some other responses; such as that the obese child has a small number of brothers, higher birth order, higher educated mothers and higher family cultural background. It was also discovered that food perference, except for fat and oil group foods was not related to body stature. Sweet taste was liked best and pepperly taste was mostly disliked. Sour taste was popular in the group of underweight. Underweight children were more finicky, disliked snacking, and didn't get much attention from their mothers. 3) Correlation between body stature and nutrition during their infancy. The majority of children, both from obese and underweight, were breast fed as infant. Twenty five per cent of obese children and 17.4 per cent of underwight children started weaning at $1{\sim}6$ months old. The most popular supplemental food of weaning was cereal gruel for the obese group, while boiled white rice and cereal gruel were most common for the underweight group. Highly significant relationships were found between stature of parents and their children. In the obese group 47.8 per cent of fathers and 45.9 per cent of mothers were overweight; however, none of the fathers and only one mother was found to be underweight. In daily food consumption patterns, meals consisting of bread or noodle were popular in the obese group but disliked by the underweight group. The study found clear contrast in that the obese group liked meat and fish while the underweight group liked fruits and vegetables, especially kimchee. The obese children desired to eat cereal foods, milk and milk products, and fat foods while the underweight group desired to eat fruits and vegetables. Frequency of snacks per day was much greater in the obese group. Foods which mothers believed to be good for the health were carrots, cucumbers, fruits, milk, potatoes, sweet potatoes, and breads, while sweet foods such as candies, drinks. chocolate were considered not good for the teeth. Watching television was not significantly related to statures of children. Most significant relationships were found beween frequencies of family guest meals/and eating-out, and children's statures. Nutritional problems which have been considered for the malnourished children in addition to those of children who have a tendency toward obesity, must be taken into consideration in the development of proper nutrition education through the channels of regular school teaching and teaching by parents in the homes. Korean standards of anthropometric measurements for children should be revised, current measurements show much higher figures than present Korean standards.

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전국단위의 포유류 생물다양성우수지역 분석 연구 (A nationwide analysis of mammalian biodiversity hotspots in South Korea)

  • 김지연;권혁수;서창완;김명진
    • 환경영향평가
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    • 제23권6호
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    • pp.453-465
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    • 2014
  • 생물다양성우수지역은 종다양성이 가장 우수한 지역 또는 훼손될 우려가 가장 큼에도 생물상이 가장 다양한 지역으로서, 생물다양성 보전을 위한 최적지를 선택하는 데 필수적인 요소이다. 이 연구의 목적은 포유류를 대상으로 전국단위에서 종풍부도, 희귀도를 분석하여 생물다양성우수지역을 파악하는 것이다. 대상종은 멸종위기 포유류 4종, 일반종 11종 등 총 15종을 선정하였다. 지형, 거리, 식생구조 등을 환경변수로 설정하였고, Maxent(Maximum Entropy Method)를 활용하여 종분포모형을 구축하였다. 종풍부도와 종희귀도를 통해 생물다양성을 분석하였다. 연구 결과는 다음과 같다. 첫 번째, 종풍부도를 분석한 결과, 멸종위기 포유류를 대상으로 할 때에는 높고 가파른 산림이 생물다양성우수지역인 것으로 나타났다. 반면, 전체종을 대상으로 했을 때는 저지대 산림에서 종풍부도가 높았다. 두 번째, 멸종위기 포유류를 대상으로 할 때에는 희귀도와 종풍부도가 유사한 공간분포를 보였다. 그러나 전체종을 대상으로 할때에는 저지대 산림 뿐만 아니라 고지대 산림에서도 다소 희귀도가 높은 것으로 나타나, 종풍부도와는 다소 다른 공간분포를 보였다. 이와 같은 연구 결과는 추후 생물다양성 평가, 서식지 보전, 생태축 구축, 보호지역 관리 등에 활용될 수 있을 것이다.