• Title/Summary/Keyword: Human research subjects

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An Analysis of Domestic Research Trends of Probability Education (확률교육에 관한 국내 연구논문의 동향 분석)

  • Park, Minsun;Lee, Eun-Jung
    • Journal of the Korean School Mathematics Society
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    • v.24 no.4
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    • pp.349-367
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    • 2021
  • In this study, 85 studies on probability education from 2000 to 2020 were analyzed by publishing year, journals, research subjects, and research topics. Especially, fundamental probabilistic ideas presented by Batanero et al.(2016) were applied to examine which topics were dominant in domestic probability education research. As a result, it was found that there has been a few research in probability education in Korea during the past 20 years, and the number of human subject studies was slightly more than the number of non-human subject studies. In addition, the analysis of research topics according to the fundamental probabilistic ideas showed that two topics, conditional probability and independence and combinatorial enumeration and counting, were dominant in domestic probability education research. However, while both conditional probability and independence and combinatorial enumeration and counting are introduced to young children using intuitive manners in international probability education research, subjects related to these topics were primarily high school students and pre and in-service teachers. Based on the results of this study, the implications for the goal and the direction of future probability education research were discussed.

A Study on the Human Sensibility Evaluation Using 10-channel EEG (10채널 뇌파를 이용한 감성 평가에 관한 연구)

  • Kang, Dong-Kee;Kim, Heung-Hwan;Kim, Dong-Jun;Ko, Han-Woo
    • Proceedings of the KIEE Conference
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    • 2001.11c
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    • pp.184-186
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    • 2001
  • This paper describes a method of human sensibility evaluation for pleasant and unpleasant environments. Conditions of the environment are room temperature and humidity. Changing the conditions, 10-channel EEG signals for 4 subjects are collected. Linear predictor coefficients of the recorded EEGs are extracted as the feature parameter of human sensibility. A neural network-based human sensibility estimation algorithm is developed. The developed algorithm showed good performance in the pleasantness evaluation. The neural network output produced accurate states of pleasantness sensibility. Subject-independent test showed similar results with subject-dependent test.

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Association among Religiosity, Self-Esteem and Life Satisfaction of the Elderly (노인의 종교성, 자아존중감과 생활만족도간의 관계)

  • Jeon, Young-Ja;Park, Kyung-Rhan
    • Korean Journal of Human Ecology
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    • v.15 no.2
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    • pp.239-249
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    • 2006
  • The purpose of this research is to examine the relationship among religiosity, self-esteem, and life satisfaction of the elderly. The subjects of this study are 228 elders living in Busan and Gyeongnam areas, who have religions such as Christianity or Catholicism. The main results of this study are as follows: 1) Elders' health condition, starting age of religion, and social religious activity are revealed to be significant variables which influence their self-esteem. 2) Self-esteem, individual religious activity, and health condition are revealed to be significant variables which influence their life satisfaction.

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Rice-based breakfast improves fasting glucose and HOMA-IR in Korean adolescents who skip breakfast, but breakfast skipping increases aromatic amino acids associated with diabetes prediction in Korean adolescents who skip breakfast: a randomized, parallel-group, controlled trial

  • Kim, Hyun Suk;Jung, Su-Jin;Jang, Soyoung;Kim, Min Jung;Cha, Youn-Soo
    • Nutrition Research and Practice
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    • v.16 no.4
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    • pp.450-463
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    • 2022
  • BACKGROUND/OBJECTIVES: Adolescents who skip breakfast have an increased prevalence of chronic diseases. Thus, we aimed to evaluate whether the intake of rice-based breakfast had positive effects on blood glucose indices and to determine the possibility of diabetes prevalence in Korean youths who habitually skip breakfast. SUBJECTS/METHODS: In this randomized parallel-group controlled trial, 81 subjects who were suitable for compliance among 105 middle-and high-school students aged 12-18 years who usually skipped breakfast were included in this study (rice-meal group [RMG], n = 26; wheat-meal group [WMG], n = 29; general-meal group [GMG], n = 26). The RMG and WMG received a rice-based breakfast and a wheat-based breakfast for 12 weeks, respectively. The anthropometric indices, blood glucose indices, and metabolites were measured at baseline and the endpoint, respectively. RESULTS: The mean body weights in the RMG, WMG, and GMG groups at the endpoint were 62.44 kg, 61.80 kg, and 60.28 kg, respectively, and the mean body weights of the WMG and GMG groups at the endpoint were significantly higher than that at baseline (P < 0.05). The levels of fasting insulin and homeostasis model assessment of insulin resistance (HOMA-IR) values were significantly decreased in the RMG group at the endpoint compared to baseline (P < 0.05, P < 0.05, respectively). The levels of tryptophan and tyrosine in the WMG group at the endpoint were significantly higher than that those at baseline (P < 0.01, P < 0.05, respectively). CONCLUSIONS: Rice-based breakfast has positive effects on fasting insulin levels and HOMA-IR in Korean adolescents who skip breakfast. Additionally, it was found that a skipping breakfast could increase the prevalence of diabetes in adolescents who skip breakfast. Therefore, in addition to reducing breakfast skipping, it is vital to develop a rice-based menu that fits teenage preferences to prevent chronic diseases such as diabetes.

Methodological Implications of Everyday Life Research in Library and Information Science - With Special Reference to Current Research Trends - (문헌정보학에 있어서 일상생활 연구의 방법론적 함의 - 최근 연구동향을 중심으로 -)

  • Kim Jung-Gun;Chang Durk-Hyun
    • Journal of Korean Library and Information Science Society
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    • v.30 no.2
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    • pp.55-75
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    • 1999
  • Although the importance of research methodoogy in library and information science(LIS) has been widely recognized, LIS has been also criticized that current research methodology in the field maintains only the positivistic orientation. Researchers on the other hand, assert that US should be studied as a human study, a subjective approach based on a phenomenological perspective, since US has very much to do. with the 'human factor,' with subjectivity in the form of librarian, patron, and administrator. In this paper, a review of the published qualitative research in the field which try to generate theories from the subjects in their own everyday life situation, attempts to shed light on the implication of a new terrain of everyday life research to US. Theory of everyday life is generated by the subjects who are involved in the social relationship, using their own language. It is a theory which shows the logic of the real world in which the everyday man recognize, act and communicate. This includes the perceptions, feelings, and meanings members experience as well as the 'small world' they create in process. Everyday life research performed using qualitative research methods which have strength to investigate this micro-structure applied to the field of library and information science, may bring enrichment to the library and information science research.

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Questionnaire Results of Subjective Evaluation of Seal Robot at the National Museum of Science and Technology in Stockholm, Sweden

  • Shibata, Takanori;Wada, Kazuyoshi;Tanie, Kazuo
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2003.09a
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    • pp.16-19
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    • 2003
  • This paper describes research on mental commit robot that seeks a different direction from industrial robot, and that is not so rigidly dependent on objective measures such as accuracy and speed. The main goal of this research is to explore a new area in robotics, with an emphasis on human-robot interaction. In the previous research, we categories robots into four categories in terms of appearance. Then, we introduced a cat robot and a seal robot, and evaluated them by interviewing many people. The results showed that physical interaction improved subjective evaluation. Moreover, a priori knowledge of a subject has much influence into subjective interpretation and evaluation of mental commit robot. In this paper, 133 subjects evaluated the seal robot, Paro by questionnaires in an exhibition at the National Museum of Science and Technology in Stockholm, Sweden. This paper reports the results of statistical analysis of evaluation data.

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Descriptive Survey on the Dimensions and the Characteristics of Korean Hands in General (한국인의 손 치수 및 특성에 관한 연구)

  • Jeong, Hwa-Sik;Jeong, Hyeong-Sik
    • Journal of the Ergonomics Society of Korea
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    • v.22 no.2
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    • pp.29-44
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    • 2003
  • A variety of research has been conducted on anthropometric dimensions and their applications to various products and space architecture, Also robust research has been conducted on various parts of human body and the possibility of applications. However, research on the specific dimensions regarding fingers and characteristics of hands have rarely been conducted in Korea. In addition, except for the NASA Anthropometric Source Book that suggests measures for specific purposes such as gloves and hand-operated device, almost no literature can be found on this topic, The primary objective of this study was thus to provide anthropometric dimensions of Korean hands and fingers and recommend appropriate product design solutions for human hands. Six hundred Korean male and female subjects aging from 11 to 93 were selected, Thirteen different hands and fingers were measured along with demographic data(e.g., age, stature, weight} to determine the relationships among these obtained data, The results of this study should be considered in ergonomic design for every hand-used products and hand-operated control devices.

Analysis of Research Trends Related to Christian Picture Books : Focusing on Domestic Dissertations (기독교 그림책 관련 연구 동향 분석 : 국내 학위 논문 중심으로)

  • Kim, Minjung
    • Journal of Christian Education in Korea
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    • v.68
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    • pp.245-277
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    • 2021
  • The purpose of this study was to investigate the trend of Christian picture book-related research. The purpose of this study is to present basic data for various and balanced research and development in the Christian picture book field by analyzing the research period, research content, and research method related to Christian picture books. For this study, 45 domestic master's and doctoral dissertations were extracted through the National Assembly Library and the Academic Research Information Service (RISS) with the keywords of 'Christian picture book', 'Bible picture book', 'Christian story', and 'Bible story'. The frequency and percentage were calculated by analyzing Christian picture book-related studies according to four criteria: research period, research content, research method, and research subject. As a result of the study, first, the trend of Christian picture book research papers by research period from 1999 to 2021 was 43 master's articles (95.6%) and 2 doctoral articles (4.4%), focusing on Christian picture book-related studies. Second, the trend by research content was found to be 12 basic studies (26.6%) and 33 practical studies (73.4%). Research related to Christian picture books is being actively conducted focusing on practical research rather than basic research. Third, the trend by research method was in the order of 33 quantitative studies (73.4%), 11 literature studies (24.4%), and 1 qualitative study (2.2%). Research related to Christian picture books is centered on quantitative research, and literature research and qualitative research account for a relatively low proportion. Fourth, as for the trends by study subject, there were 35 human subjects (77.8%) and 10 physical subjects (22.2%). Among human subjects, 33 single subjects (73.4%) and 2 mixed subjects (4.4%) were found, and among single subjects, 30 studies (66.7%) targeting children were high. In other words, research on Christian picture books had a higher proportion of studies with children as a single subject than mixed subjects between children and children, children and teachers, and between children and parents.