• 제목/요약/키워드: the Scientific community

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국내 시판 이유식류의 영양성분규격 설정 방안 (Study on the Establishment of Nutrient Requirements for Commercial Supplementary Foods for Infants and Young Children)

  • 김동연;김경희;최혜미
    • 대한지역사회영양학회지
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    • 제2권4호
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    • pp.624-632
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    • 1997
  • This study was conducted to evaluated the nutrition quality of the commercial supplementary foods for infants and young children and to seek a solution to the establishment of standards of nutrient requirements for supplementary foods in Korea. Information on food ingredients, nutrient contents, claims about usefulness of food components and instructions for feeding preparation were obtained from the labels of 33 commercial supplementary foods manufactured by 4 different domestic companies. According to the standard of supplementary foods for infants and young children described in the Korean Food Code, the commercial supplementary foods were categorized into two different types, weaning food and baby food. All the commercial weaning foods were in powder form and mainly composed of cereals, whereas all the baby foods were mainly composed of fruits in the form of canned juice. The weaning foods contained more nutrients than the baby foods did, and the nutrient levels of the weaning foods expressed as nutrient density on energy basis were higher than the RDA for infants aged 5 to 11 months, suggesting that the commercial weaning foods provide adequate amounts of nutrients. If one followed the instructions for feeding preparation appearing on the label, however, recommended amounts of intake of the weaning foods would provide too much energy as well as nutrients. There were many differences in nutrient standards of weaning foods between the Korean Food Code and Codex international food standard. In conclusion, the establishment of standards for nutrient requirements for the supplementary foods requires significant scientific studies on what nutrients are the most inadequate in Korean infants and young children feeds and what levels of nutrients should be added to the foods in order to supplement their nutrition. In addition, it is very important to have a strong scientific basis to support our standard when discrepancies exist between our standard and the international standard. (Korean J Community Nutrition 2(4) : 624-632, 1997)

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Synthesis and applications of graphene electrodes

  • Shin, Dolly;Bae, Su-Kang;Yan, Chao;Kang, Jun-Mo;Ryu, Jae-Chul;Ahn, Jong-Hyun;Hong, Byung-Hee
    • Carbon letters
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    • 제13권1호
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    • pp.1-16
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    • 2012
  • The near explosion of attention given to graphene has attracted many to its research field. As new studies and findings about graphene synthesis, properties, electronic quality control, and possible applications simultaneous burgeon in the scientific community, it is quite hard to grasp the breadth of graphene history. At this stage, graphene's many fascinating qualities have been amply reported and its potential for various electronic applications are increasing, pulling in ever more newcomers to the field of graphene. Thus it has become important as a community to have an equal understanding of how this material was discovered, why it is stirring up the scientific community and what sort of progress has been made and for what purposes. Since the first discovery, the hype has expediently led to near accomplishment of industrial-sized production of graphene. This review covers the progress and development of synthesis and transfer techniques with an emphasis on the most recent technique of chemical vapor deposition, and explores the potential applications of graphene that are made possible with the improved synthesis and transfer.

초등학생을 위한 과학인성 검사 도구 개발 (Development of Survey Tool for the Scientific Character of Elementary Student)

  • 남일균;임성민
    • 한국과학교육학회지
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    • 제38권6호
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    • pp.825-838
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    • 2018
  • 이 연구는 초등학교 과학 교수학습 맥락에서 발현되는 초등학생의 인성적 특성을 파악하여 과학교육과 인성교육을 효과적으로 접목하는 초등학생용 과학인성 측정 도구를 개발하려는 목적으로 수행되었다. 이를 위해 과학인성을 구체적인 과학 교수학습의 맥락에서 실천할 수 있는 역량으로 정의하는 선행연구의 이론적 모형을 차용하였으며, 이에 기반하여 초등학생의 과학 교수학습 맥락 속에서 추구하는 덕목을 실천 할 수 있는 역량을 측정하는 '초등학생 과학인성 검사 도구'를 개발하고, 개발한 검사 도구의 타당성과 신뢰성을 검증하였다. 탐색적 및 확인적 요인분석 결과 초등학생 과학인성 검사 도구는 과학적 문제해결능력, 자기관리역량, 자기성찰역량, 의사소통역량, 대인관계역량, 공동체참여역량, 세계시민의식, 환경윤리의식 등의 8개 하위 구인으로 구성됨을 확인하였고 문항은 최종 28개문항으로 정리되었다. 최종 정리된 과학인성 검사 도구의 각 하위 구인별 신뢰도 계수는 최소 0.5 이상이고 검사 도구 전체로는 0.878의 신뢰도 지수를 나타내며, 산출된 하위 구인들과 전체 과학인성 점수 사이에 양호한 수준에서 상관이 있음을 확인하였다. 이러한 결과는 이 연구에서 개발한 검사 도구가 과학인성교육의 성과를 평가하는 도구로서 유용할 수 있음을 보여준다. 이 연구는 과학교과를 통해 기를 수 있는 인성의 구인들을 구체적인 과학 교수학습 맥락을 고려하여 체계적으로 밝히고 이를 평가하는 도구를 제안했다는 점에서 의미 있다.

지역사회 기반 참여연구 방법론 (The Methodology of Community-Based Participatory Research)

  • 정민수;정유경;장사랑;조병희
    • 보건교육건강증진학회지
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    • 제25권1호
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    • pp.83-104
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    • 2008
  • Objectives: Community-Based Participatory Research (CBPR) is a kind of health promotion approach to increase social cohesion and sense of community, which has built the collaborated partnership in all phases. This has the co-ownership of research objectives and knowledges produced by residents, and the outcome was taken to enhance community empowerment. This study performed to embody CBPR, which had regulated collective health status approached by social epidemiology. Methods: Reference review had been exercised focused on CBPR books and papers published since 1990. Our interests were aimed at its paradigm and methodological issues. Particularly, we problematized its feasibility in the social and behavioral foundations of pubic health. Results: According to the review, CBPR shared critical understanding and decision-making related to their community development including health status. Therefore, it was strength-based approach in spite of scientific dichotomy. CBPR created social cohesion and community empowerment with all participants, because it sublated contradiction between subjectivism and objectivism. Conclusions: The success of CBPR needs what we so called trust, democracy, collaboration, devotion, and consensus of equity. Despite these factors, CBPR may be a methodological transition to prepare some intervention of health inequality. This is because it does emphasize a mixture of theory and praxis to manage vulnerable people in community.

백령도 해조군집의 종조성과 생물량 (The Macroalgal Community of Bagryoungdo Island in Korea)

  • 백재민;황미숙;이재완;이욱재;김종인
    • ALGAE
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    • 제22권2호
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    • pp.117-123
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    • 2007
  • The seasonal change of algal flora and intertidal community structures of Bagryoungdo Island was investigated at Dumujin from February to November 2006. The description of subtidal algal community was made in October by Scientific SCUBA-diving. The total of 43 species, including 6 Chlorophytes, 6 Phaeophytes, 29 Rhodophytes and 2 sea grasses were identified in this survey. The occurrence of species according to season, listed as follows, 26 species in winter, 34 in spring, 18 in summer and 18 in autumn. Three species, Laminaria japonica, Neorhodomela aculeata and Ulva pertusa were dominant. The algal zonation of intertidal zone was figured out by Porphyra spp., Gloiopeltis furcata, Caulacanthus okamurae, Gelidium divaricatum - Neorhodomela aculeata, Enteromorpha compressa - Ulva pertusa, Dumontia simplex, Laminaria japonica from upper to lower zone. The zonation of subtidal zone was figured out by Ulva pertusa - Laminaria japonica - Zostera marina (sea grass), crustacean red algal population in autumn. The average of biomass of macroalgae was measured as 119.4 g∙dry wt/m2.

과학기술 정보체제의 계획을 위한 기초연구 -정보의 특징, 정보의 이용 및 유통체제의 개선- (A Basic Study for the Planning of a Scientific Information Center; Characteristics and Use of Information with Possible Improvements)

  • 구자영
    • 한국문헌정보학회지
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    • 제3권
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    • pp.1-24
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    • 1973
  • This paper is intended as a basic study in which the purpose is to provide understanding of the workings of man in relation to his information resources. Such understanding would prove of value in formulating the policies of an inoformation center serving the fields of science and technology. The information problem of the scientific community was assessed in the lights of the characteristics of the information (cumulativeness, currency versus obsolescence, volume versus redundancy, interrelationships, and foreign literature)and the flow of information and communication patterns covering the use of the variety of media and the information gathering habits of scientists. What can be done to ease the problem was sought in the improvements and innovations which call the attentions of the scientists and the technologists as producers and users of the information, of the professional organizations of various disciplines and of government.

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The UNESCO Action Plan and 2030 Agenda of Sustainable Development Goals for Climate Change

  • Thriveni, Thenepalli;Ramakrishna, Chilakala;Habte, Lulit;Ahn, Ji Whan
    • 에너지공학
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    • 제27권2호
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    • pp.89-94
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    • 2018
  • UNESCO is an international specialized agency based on the United Nations (UN) located in the Paris. The United Nations Educational, Scientific and Cultural Organization abbreviated as UNESCO. The mission and goal of UNESCO are to maintain the peace and security throughout the globe by encouraging international collaborations through educational, scientific, and cultural heritage in order to increase respect for principals of justice, international rules of law, and international human rights. Recently, the UNESCO published a new set of 17 goals for the nation's sustainable society. The Organization ensures to actively participate in UN activities to improve harmony and planning within the United Nations system. The 2030 agenda is primarily about shifting the world on to a sustainable and most in-depth. Currently, UNESCO launched broad goals and objectives for the international community including the Millennium Development Goals (MDGs). Among these sustainable goals, climate change, water security is more significant. In this paper, we briefly reviewed the seventeen goals by UNESCO.

Text Mining and Visualization of Papers Reviews Using R Language

  • Li, Jiapei;Shin, Seong Yoon;Lee, Hyun Chang
    • Journal of information and communication convergence engineering
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    • 제15권3호
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    • pp.170-174
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    • 2017
  • Nowadays, people share and discuss scientific papers on social media such as the Web 2.0, big data, online forums, blogs, Twitter, Facebook and scholar community, etc. In addition to a variety of metrics such as numbers of citation, download, recommendation, etc., paper review text is also one of the effective resources for the study of scientific impact. The social media tools improve the research process: recording a series online scholarly behaviors. This paper aims to research the huge amount of paper reviews which have generated in the social media platforms to explore the implicit information about research papers. We implemented and shown the result of text mining on review texts using R language. And we found that Zika virus was the research hotspot and association research methods were widely used in 2016. We also mined the news review about one paper and derived the public opinion.

상황학습을 통한 과학 도슨트의 전문성 연구 (The Study of Science Docents' Expertise through Situated Learning)

  • 박영신
    • 대한지구과학교육학회지
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    • 제8권1호
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    • pp.98-113
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    • 2015
  • The purpose of this study was to explore how science docents developed their expertise in the context of situated learning where two experienced docents played roles of mentors. Two experienced docents as mentors and six participating docents as mentees interacted in the community to develop exhibition interpretation strategies to be more professional in interacting with visitors through the workshops developed by the researcher. To figure out how docents developed their expertise in exhibit interpretation, the researcher collected the data from docents through observation, artifacts, and interviews as well as surveys. The result of this study included that participating docents formed new perception about scientific inquiry as well as scientific literacy and they developed professional skills of planning, implementing, and reflecting of exhibition interpretation in the context of situated learning, where docents formed alliance one another. It is recognized that participating docents' passions to be professional in exhibition interpretation and two experienced docents' wills as mentors made dynamic interaction in pursuing the same aim of docents' expertise in exhibition interpretation.

Methods for Measuring Exposure to Environmental Tobacco Smoke (ETS)

  • Wu, Joseph--M
    • 한국연초학회지
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    • 제19권2호
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    • pp.162-169
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    • 1997
  • An important and somewhat under-emphasized issue in assessing the risk potentially associated with exposure to ETS is the reliability and objectivity of the methods used to measure the actual level of exposure. Objectivity of the science is crucial in this context since this topic tends to elicit strong social, emotional and political responses among the general public and the scientific community alike. This mini-review compares the strengths and limitations of various methods used in determining ETS exposure in scientific investigations. Methods reviewed include: questionnaire, area monitoring, bio-monitoring, and personal monitoring. In particular, results of several recent studies (conducted in the United States, Europe, and the Far East) using personal monitors in combination with questionnaire and bio-monitoring, which contribute to a more reliable, objective and realistic estimates of a person's actual exposure to 575, are discussed.

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