• 제목/요약/키워드: Habits of IT

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기계학습 기반 근감소증 예측을 위한 데이터 전처리 기법 (Data Preprocessing for Predicting Sarcopenia Based on Machine Learning)

  • 최윤;윤유림
    • 문화기술의 융합
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    • 제9권3호
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    • pp.737-744
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    • 2023
  • 근감소증은 노인들 사이에서 점점 더 흔하게 발생하고 있어, 최근 주목을 받고 있는 질병이다. 근감소증의 원인은 매우 다양하게 나타나지만, 노화, 식습관, 운동 부족등이 주요한 원인들 중 하나이다. 근감소증은 원인이 다양한 만큼 예방 및 치료에 전략을 개발하는 것이 중요하다. 하지만 요인이 다양한 만큼 사람이 근감소증을 정확하게 예측하기는 어렵다. 여기서 기계학습을 이용해 근감소증 예측의 정확도와 편의를 크게 높일 수 있다. 그러나 생활습관과 생체 데이터의 양은 방대한 만큼, 전처리 없이 데이터를 쓰기에는 시간복잡도와 정확성 측면에서 부적절할 수 있다. 본 논문에서는 근감소증과 그 원인에 대한 최신 문헌을 검토하고, 그에 맞게 기계학습 기만 근감소증 예측에 활용할 데이터를 전처리하는데 초점을 맞춘다.

제주지역 고등학생의 체형만족도에 따른 영양지식, 식습관 및 체중조절 실태 분석 (Body Shape Satisfaction, Nutrition Knowledge, Dietary Habits, and Weight Control Attitude of Korean High School Students)

  • 좌혜진;채인숙
    • 한국식생활문화학회지
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    • 제23권6호
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    • pp.820-833
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    • 2008
  • The study analyzed the body shape perception, weight control attitude, nutrition knowledge, and dietary habits of 529 high school students in Jeju surveyed from January 14-18, 2008 according to students' body shape satisfaction, with the aim of providing basic nutritional education data to aid in appropriate weight control for high school students. The data were analyzed by descriptive analysis, T-test, Chi-square test, ANOVA, and Pearson's correlation coefficients, using the SPSS Win 12.0 program. The body mass index (BMI) of subjects was in the normal range. With regard to weight distribution, 59.4% of subjects showed normal weight and girls were significantly more underweight than boys. More girls considered themselves to be fatter than boys and tended to be increasingly dissatisfied with their body shape. Both boys and girls were more interested in weight control for obesity and were significantly less satisfied with their body shape. Efforts at weight control and reduction had occurred significantly more often for girls than for boys. Dietary attitude scores were significantly higher in girls than boys. BMI positively correlated to weight control concern and nutrition knowledge positively correlated to dietary attitude. BMI negatively correlated to the body shape satisfaction, which in turn negatively correlated to food ingestion disorders. Therefore, it is necessary to develop a systematic nutrition educational program that can induce changes in dietary behavior and increase accurate perception and satisfaction of body shape.

Development of an Evidence-based Nutritional Intervention Protocol for Adolescent Athletes

  • Lee, Saningun;Lim, Hyunjung
    • 운동영양학회지
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    • 제23권3호
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    • pp.29-38
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    • 2019
  • [Purpose] Effective nutritional intervention can help reduce the risk of nutritional problems and improve athletic performance in adolescents. The five A's (assess, advise, agree, assist, and arrange) model is widely used as the theoretical framework for advice on nutrition, smoking, drinking, and physical activity and it recommends that practitioners in primary health care promote behavior change to facilitate positive outcomes. This model has also been useful in understanding the underlying processes of behavior change. This study aimed to develop both a novel evidence-based nutritional intervention protocol, rooted in sound nutritional theory, and a customizable nutritional intervention program to support sustainable healthy eating, enhance nutrient intake, and improve athletic performance in adolescent athletes. [Methods] In this study, we adapted the 5 A's behavioral change model and motivational interview to develop a theoretical framework to help adolescent athletes change their behavior and achieve their goals. [Results] During each step of the 5 A's protocol, a customized nutritional intervention protocol was developed by nutrition experts for each of adolescent athletes. Each plan was developed to improve the eating habits of adolescent athletes through group education and counseling. All nutritional counseling sessions were designed to enable participants to apply nutritional knowledge and practical action plans to their training and competition conditions to enable each of them to achieve individual athletic goals and facilitate self-management. [Conclusion] A theoretical and evidence-based nutritional intervention protocol was developed to identify and address obstacles to healthy dietary habits in adolescent athletes. This could be used as the basis for further studies aimed at improving nutrient intake and athletic performance in adolescent athletes.

맞벌이 가정 자녀를 위한 기초 생활습관 형성 및 기초 영어회화 교육 로봇 설계 및 구현 - 만 5세 이상 아동을 중심으로 (Design and Implementation of The Formation of Basic living habits and Basic English Conversation Education Robot for Children in Dual Income Households - focused children over five)

  • 김경민;이강희
    • 문화기술의 융합
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    • 제6권1호
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    • pp.507-513
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    • 2020
  • 본 논문에서 우리는 단일보드 컴퓨터인 라즈베리 파이3 기반의 오픈 플랫폼 로봇 Q.bo one을 이용하여 맞벌이 가정의 아이들의 생활 습관과 영어회화 교육을 케어해줄 로봇을 설계 및 구현하고자 한다. 첫 번째 생활습관 형성 기능은 성장기 아이들에게 가장 중요한 생활습관인 손씻기, 규칙적인 식사, 양치질, 숙제, 규칙적인 수면 총 5가지를 선정하여 부모가 부재중일 때에도 로봇으로 부모 목소리를 출력함으로서 아이에게 생활습관이 자리 잡을 수 있도록 도와준다. 알림을 듣고 실행에 옮긴 아이의 모습을 촬영하여 부모가 확인하고 피드백을 할 수 있게 한다. 두 번째 기초회화 교육 기능은 구글의 DialogFlow를 사용하여 로봇과 아이가 간단한 영어 회화를 통해 영어를 자연스럽게 익힐 수 있도록 도와준다. 이 두 가지 기능의 로봇을 통해 맞벌이 가정의 아이들이 부모님이 집에 계시지 않을 때에도 부모님의 목소리를 출력하는 알림으로 안정감을 느끼게 한다. 동시에 기본적인 생활 습관을 들이고, 로봇과의 기초 영어회화를 하며 일찍이 영어에 흥미를 느낄 수 있도록 하는 것이 목적이다.

일부 지역 청소년의 인터넷 중독에 영향을 미치는 요인 (Factors Influencing Internet Addiction among Adolescents in an Area)

  • 신승배;이주열;김석환
    • 한국학교ㆍ지역보건교육학회지
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    • 제12권1호
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    • pp.45-58
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    • 2011
  • Objectives: The purpose of this study is to analyze the fators affecting Internet addiction among adolescents in an area. Methods: By using cluster sampling, 2,479 participants representing 22 elementary school, 11 middle school, 7 high school students in a county of the Chungcheongnam-do. Data was analyzed by SPSS 12.0. using t-test, F-test, chi-square test, Pearson correlation coefficient and multiple regression. Results: Internet addiction positively correlated with high school students(dummy variable), Internet-connected computers in PC Game Room(dummy variable), Internet using time(weekday) and Internet using time(weekend). Internet addiction negatively correlated with Internet-connected computers in school(dummy variable), Internet-connected computers in friend's house(dummy variable). For the male students, Significant factors affecting Internet addiction were eating habits, Internet-connected computers in friend's house, Internet using time(weekend). For the female students, Internet using time(weekday) and Internet using time(weekend) were significant. For the elementary school students, Significant factors affecting Internet addiction were Internet using tine(weekday) and Internet using time(weekend). In the case of the middle school students, Internet using tine(weekday), Internet using time(weekend) and eating habits were significant. but, the high school students, Internet using time(weekend) was significant. Conclusions: Students who spend more time in the internet have higher tendency to become addicted to the internet. Therefore, it would be necessary to develop program to prevent internet addiction.

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여대생의 지각된 스트레스, 자아탄력성이 월경전증후군에 미치는 영향 (Effects of Perceived Stress, Ego-resilience on Premenstrual Syndrome in Female College Students)

  • 윤지원
    • 한국콘텐츠학회논문지
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    • 제19권3호
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    • pp.405-415
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    • 2019
  • 본 연구는 여대생의 지각된 스트레스와 자아탄력성, 월경전증후군 간의 관계를 파악하고, 월경전증후군에 영향을 미치는 요인을 확인하고자 시도되었다. 연구대상자는 경기도에 소재한 1개 대학교의 여대생 215명이며, 자료수집은 자가보고식 설문지를 이용하여 2017년 10월 10일부터 11월 10일까지 시행하였다. 수집된 자료는 기술통계, 상관관계 및 다중회귀분석으로 분석하였다. 대상자의 월경전증후군은 지각된 스트레스(r=.537, p<.001)와는 정적 상관관계, 자아탄력성(r=-.315, p<.001)과는 부적 상관관계가 있었다. 대상자의 월경전증후군에 유의한 영향을 미치는 요인은 식사습관(${\beta}=.123$, p=.031), 월경으로 인한 일상생활 지장 정도(${\beta}=.232$, p=.001), 지각된 스트레스(${\beta}=.441$, p=<.001)로 44.4%의 설명력을 보였다. 이상의 결과를 토대로 여대생의 월경전증후군을 완화하기 위해서는 월경증상관리를 위한 노력과 더불어 심리적 요인과 식생활을 포함한 생활습관 개선을 통합하는 관리프로그램을 개발하고 체계적으로 적용하는 방안을 모색해야 하겠다.

산업위생 분야 종사자들의 사회 안전의식변화에 관한 조사 (Comparison of Risk and Safety Perceptions of Industrial Hygienist)

  • 임대성;이승길
    • 한국산업보건학회지
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    • 제30권4호
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    • pp.331-341
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    • 2020
  • Objectives: This study was conducted to evaluate perceptions of safety and risk among Korean industrial hygienists and the change between before and after the Sewol Ferry Disaster in 2014. Two surveys with questionnaires composed of 51 questions were completed by attendees of the Korea Industrial Hygiene Association(KIHA) conference. Methods: One was conducted at the 2013 KIHA Fall Conference(N=181) and the other was from the 2014 KIHA Summer Conference(N=123). Between these two surveys was the Sewol Ferry Disaster on April 14, 2014, which was believed to seriously affect safety and risk perceptions in Korea. Results: It was revealed that industrial hygienists' awareness of safety rules strengthened after the Sewol Ferry Disaster(p<0.05). It was apparent that people over the age of 30 were more sensitive to social safety. There was no significant difference in the evaluation and attitude regarding governmental safety policy between the years of 2013 and 2014. The credibility of public organizations responsible for the disaster management system decreased. The self-evaluation of respondents' safety level also decreased. This trend shows mainly in the younger generation. It was evaluated that the overall social safety level decreased and the anxiety level increased. The score on social safety on a ±5 Likert scale was 0.68 in the 2013 survey and -0.33 in the 2014 survey(p<0.05). It was reported that the most serious threat factors for accident or disaster were 'building collapse > illegalities and corruption > side effects of radiation therapy >accidents in normal activity > occupational disease,' in order. They picked 'safety ignorance > hurry-up habits and culture > focusing on short-term benefit > easy-going attitude > insufficient safety education' for the causes of low social safety levels in 2013. In 2014, they were 'safety ignorance > easy-going attitude > focusing on short-term benefit > insufficient safety education > hurry-up habits and culture'. Conclusions: This study has some limitations because it was originally not designed to survey attitudes prior to the Sewol Ferry disaster in 2013. In addition, the survey targets are industrial hygienists who are familiar with occupational disease and injury.

유전자재조합식품(GMO)에 대한 소비자 정보요구도 연구 (A Study on Consumers' Information Demand of Genetically Modified Organisms(GMO))

  • 박혜영;김시월
    • 대한가정학회지
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    • 제43권2호
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    • pp.175-189
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    • 2005
  • This study analyzed the degree of demand for genetically modified organisms(GMOs) to provide the basic information for consumers' reasonable purchase decision making and their right to know about GMOs. Based on the (Ed-there are no study results above) study results, the following suggestion were made. First, throughout the survey, it was found that those consumers who participated had a high level of perception on the harm of GMOs. Therefore, reliable organizations such as government agencies are required to present the results of safety tests and formulate plans related to the safety of GMOs. Second, the average score on consumers' level of consumer knowledge on GMOs was very low, being 1.68 out of a possible 8 points. Third, since women and housewives engaged in dietary habits and food had high demand for information on GMOs, it is necessary to provide women with information on GMOs. Fourth, since it is difficult to confirm the presence or absence of GMOs. in rapidly increasing demand for fast-food, it is necessary that consumers be provided with relevant information and make a reasonable judgement in purchasing food. Fifth, it is necessary to provide detailed regulations and measures for concrete contents and directions of information on GMOs. Sixth, it is necessary to provid information on GMOs from the commercial sources of information that are most preferred by consumers.

인터넷 영양상담관리 시스템 (Manipulation System for Nutrition Counseling Based on Internet)

  • 홍순명;김곤
    • 대한영양사협회학술지
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    • 제10권3호
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    • pp.284-292
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    • 2004
  • The purpose of this study was to develop a manipulation system for nutrition counseling based on internet. This system offers convenient user interface and the synthetic counseling results with various utilities. This system consists of the general information of clients, the anthropometry data and the calculation of obesity and body index, the state of eating habits, calorie expenditure, clinical symptoms, the convenient method for analysis of nutrients, biochemical data and nutrition prescription. Having interoperability, these functions preserve the information of clients and manage the historical data. This system can insert, store, print out and generate the synthetic information of clients to provide a suitable and efficient nutrition counseling information. With accumulated client data, It does the nutrition education and counseling simultaneously. As it is developed based on internet, it provides friendly user interface. Also, Managing clients' information connected to database, it can provide a systematic and formal information. It is possible for the system to retrieve information and counsel in real time. It is expected that the nutrition counseling management system can improve the national health with animated nutrition counseling.

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중등 "가정" 교사 임용시험 문항 분석 - 평가 영역별 평가 내용 요소를 기준으로 - (An analysis of examination items for secondary Home Economics teaching certification - Focusing on evaluation content elements of Home Economics -)

  • 정상희;박미정;채정현
    • 한국가정과교육학회지
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    • 제24권2호
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    • pp.135-154
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    • 2012
  • 본 연구의 목적은 2002년도부터 2011년도까지 10년간의 가정과 '임용시험 문항'(이하 '총 문항'이라 칭함)을 대상으로 분야별 출제 비율 분석, 평가 내용 요소(이하 '평가 요소'라고 칭함)에 따른 문항 분석, 임용 상세화 기준 개발 이전과 이후의 분야별 평가 내용 요소를 분석하는데 있다. 연구 결과를 요약하면 다음과 같다. 첫째, 가정과교육학 분야의 분석 결과 총 문항 중 30.9%의 비중을 차지했으며, 최근에는 35%의 출제 비율을 보이고 있다. 평가 요소별 출제 비율을 보면 '가정과 교수 학습 방법의 실제'(33.2%)가 가장 높았으며, '가정과교육의 본질'(3.2%)은 가장 낮았다. 둘째, 식생활 분야의 분석 결과 총 문항 중 17.5%의 비중을 차지했으며, 최근에는 15%의 출제 비율을 보이고 있다. 평가 요소별 출제 비율을 보면 '조리원리 실습'(26.1%)이 가장 높았으며, '식생활 문화'(3.7%)는 가장 낮았다. 셋째, 의생활의 분야의 분석 결과, 총 문항 중 15%의 비중을 차지했으며 최근에는 12.5%의 출제 비율을 보이고 있다. 평가 요소별 출제비율을 보면 '의복 관리'(25.1%)와 '의복 및 생활용품 제작'(25.1%)이 가장 높았으며, '의복의 선택과 자기표현'(3.0%)은 가장 낮았다. 넷째, 주생활 분야의 분석 결과, 총 문항 중 11%의 비중을 차지했으며 최근에는 12.5%의 출제 비율을 보이고 있다. 평가 요소별로는 '주거생활문화의 이해'(22.5%)가 가장 높고, '주거실내디자인의 이해'(10.7%)는 가장 낮았다. 다섯째, 소비생활 분야의 분석 결과, 총 문항 중 12.4%의 비중을 차지했고, 최근에는 12.5%의 출제 비율을 보이고 있다. 평가 요소별 출제 비율을 보면 '가정자원관리'(34%)가 가장 높았으며, '생애설계와 가정복지'(0%)에서는 전혀 출제되지 않았다. 여섯째, 가족생활 분야의 분석 결과 총 문항 중 13.3%의 비중을 차지했고, 최근에는 12.5%의 출제 비율을 보이고 있다. 평가 요소별 출제 비율은 '가족에 대한 이해와 가족의 변화'(23.8%)가 가장 높았고, '결혼과 가족발달'(2%)은 가장 낮았다. 마지막으로, 전반적으로 임용 상세화 기준의 개발은 가정과 중등 임용 시험의 평가 영역별 내용 요소의 균등화와 다양화의 문제를 다소 완화하였다.

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