• Title/Summary/Keyword: Scientific technology

Search Result 2,954, Processing Time 0.033 seconds

An Analysis of the Discovery of Chaos Based on Socio-Cognitive Perspectives (카오스의 발견과 이해에 대한 분석적 검토: 사회적, 인지적 측면을 중심으로)

  • Kim, Jong-Baeg
    • Journal of The Korean Association For Science Education
    • /
    • v.25 no.7
    • /
    • pp.711-720
    • /
    • 2005
  • The purpose of this study was to understand mechanisms of scientific discovery and how this can help students, as young scientists, to understand scientific ideas in the science classroom. To unravel this mechanism, this study employed the notion of chaos. This phenomena was rediscovered by Edward Lorenz. In this paper, the general concept of chaos was briefly discussed in relation with previous scientific theories such as Newtonian physics and quantum mechanics. Following this, discovery constraints in terms of available technology at the time was described. In addition, Lorenz's psychological processes during the discovery was also discussed. Based on analysis, major implications for the field of science education were the provision of relevant schemata, the use of cognitive tools, the presentation of problems with various representational forms, and the sharing of ideas with others.

Marine Scientific Research Regime in the UNCLOS and Emerging Issues (유엔해양법협약상 해양과학조사제도 관련 현안문제에 대한 법적 고찰)

  • Lee, Yong-Hee
    • Ocean and Polar Research
    • /
    • v.28 no.3
    • /
    • pp.259-272
    • /
    • 2006
  • The 1982 UNCLOS provided very detailed provisions on marine scientific research and gave coastal stale jurisdiction to regulate marine scientific research in its EEZ. However, due to lack of definition and criteria of MSR, there are some different views, even conflicts, regarding legal Pounds for governing hydrographic surveys and oceanographic data collection by one state in the EEZs of other states. Some coastal states argue that those activities should only be conducted in the EEZ of other states with the consent of the coastal state while it is the opinion of other states, including the U.S.A., that those activities can be conducted freely in the EEZ. This paper reviews different views and recent developments on the issue and suggests some recommendations for future work of the Korean government related to the activities.

Bringing Computational Thinking into Science Education

  • Park, Young-Shin;Green, James
    • Journal of the Korean earth science society
    • /
    • v.40 no.4
    • /
    • pp.340-352
    • /
    • 2019
  • The purpose of science education is scientific literacy, which is extended in its meaning in the $21^{st}$ century. Students must be equipped with the skills necessary to solve problems from the community beyond obtaining the knowledge from curiosity, which is called 'computational thinking'. In this paper, the authors tried to define computational thinking in science education from the view of scientific literacy in the $21^{st}$ century; (1) computational thinking is an explicit skill shown in the two steps of abstracting the problems and automating solutions, (2) computational thinking consists of concrete components and practices which are observable and measurable, (3) computational thinking is a catalyst for STEAM (Science, Technology, Engineering, Arts, and Mathematics) education, and (4) computational thinking is a cognitive process to be learned. More implication about the necessity of including computational thinking and its emphasis in implementing in science teaching and learning for the envisioned scientific literacy is added.

Scientific management of hazardous substances in foods: Focusing on pesticide residues (식품 중 유해물질 과학적 관리: 잔류농약을 중심으로)

  • Kim, Eunju
    • Food Science and Industry
    • /
    • v.51 no.3
    • /
    • pp.218-228
    • /
    • 2018
  • The government should establish internationally harmonious regulations for effective import and export of necessary resources to other countries. However, the use and the number of pesticides used for the same purpose on same crops are depending on the soil and the climate where the crops are grown. Therefore, if internationally harmonized standards are difficult to establish, it is mandatory to conduct a risk assessment based on scientific data to reflect the domestic situation in order to avoid trade friction or conflict between countries. The government is preparing the implementation of a more regulated PLS (positive list systme) than the existing pesticide management system for safer pesticide management reflecting the recent increasing imported food, changing dietary habits, and changing climate. In order for effectively safe and scientific management of pesticides, the government should strive to communicate with consumers properly and the perception of pesticides by consumers should also be changed.

Analysis of the Level of Technological Development and Digital Readiness of Scientific-Research Institutes

  • ALZHANOVA, Farida G.;KIREYEVA, Anel A.;SATPAYEVA, Zaira Т.;TSOY, Alexander A.;NURBATSIN, Akan
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.7 no.12
    • /
    • pp.1133-1147
    • /
    • 2020
  • The purpose of this study is to analyze the level of science and technology development and digital readiness of scientific research institutes based on the author's assessment methodology (a set of evaluations and multifactorial indicators). Keeping with the previous literature, the research is caused by the novelty of the problem, which suggests dividing the literature review into two main research groups: theoretical background, which concentrates on the digital readiness definition, and the impact of digital readiness on science. Moreover, the scientific significance lies in the fact that proposed ideas in the research, developed theoretical and methodological provisions can significantly enrich theories related to the identification of the digital readiness of science and its consumers. Further, the research is devoted to the development of assessment methods of digital changes and analysis of the level of development of digital readiness of scientific research institutes, which is based on the author's assessment methodology (a set of evaluations and multifactorial indicators). The methodology provides an opportunity to build ratings of the digital readiness of scientific-research institutes to the formation and development of a digital economy. Obtained results show that the priority task in the current and the future period is to increase the authority and recognition of scientific organizations, the quality of scientific research, and the formation of demand for scientific products.

A Study of the Kinds and Frequency Characteristics of Descriptors in the Articles Related to Scientific Literacy (과학적 소양 관련 논문에서 서술자의 종류와 빈도 특성 연구)

  • Lee, Myeong-Je
    • Journal of Korean Elementary Science Education
    • /
    • v.29 no.4
    • /
    • pp.401-413
    • /
    • 2010
  • This study analyzed the kinds and frequencies of descriptors in 154 articles in ERIC data base on the 4th day of January in 2010. The titles of the articles includes the words, 'scientific literacy'. As each descriptor is constituted of two words and over, in this study the first word in the descriptor was defined as 'restrictive word' and the rest word(s) as 'target word(s)'. The results are as follows. First, the descriptors which show high frequencies of target words are the traditionally important themes of scientific literacy education. Target words which show relatively high frequency are 'education', 'literacy', 'instruction' and 'countries'. Low frequency word is 'curriculum', which has various restrictive words and represents wide differentiation. Second, among the descriptors which show low frequencies of target words, relatively high frequency descriptors are '(and)society', 'change', 'secondary education', 'concepts', and 'biology', which have been given more attention in scientific literacy research than the rest descriptors. Third, the number of the descriptors that shows largely distributed pattern A, which happens over 15 years continuously, is over the half of all analyzed descriptors, which shows that they have been the major objectives in researches about scientific literacy. Most descriptors of pattern A shows normal distribution of frequency or the trends of increasing frequency as the time is nearer. Fourth, The descriptors are divided into four groups according to the time span. Each research trends are as follows. In later 80s, the research which emphasizes the importance of the sociality and technology in all level school science curriculum. In later 90s the research for educational change of inquiry-centered science curriculum which considers technological literacy in social contexts. In earlier 2000s the research that scientists and science teachers develop science curricula mostly related to scientific principles and thinking in chemistry and biology especially. In later 2000s case studies which relates teaching methods and science process activities to students' attitudes, scientific concepts and curricula.

  • PDF

Modeling of Hydrodynamic Processes at a Large Leak of Water into Sodium in the Fast Reactor Coolant Circuit

  • Perevoznikov, Sergey;Shvetsov, Yuriy;Kamayev, Aleksey;Pakhomov, Ilia;Borisov, Viacheslav;Pazin, Gennadiy;Mirzeabasov, Oleg;Korzun, Olga
    • Nuclear Engineering and Technology
    • /
    • v.48 no.5
    • /
    • pp.1162-1173
    • /
    • 2016
  • In this paper, we describe a physicomathematical model of the processes that occur in a sodium circuit with a variable flow cross-section in the case of a water leak into sodium. The application area for this technique includes the possibility of analyzing consequences of this leak as applied to sodium-water steam generators in fast neutron reactors. Hydrodynamic processes that occur in sodium circuits in the event of a water leak are described within the framework of a one-dimensional thermally nonequilibrium three-component gas-liquid flow model (sodium-hydrogen-sodium hydroxide). Consideration is given to the results of a mathematical modeling of experiments involving steam injection into the sodium loop of a circulation test facility. That was done by means of the computer code in which the proposed model had been implemented.

The Relationships among Elementary School Students' Cognitive, Affective, and Behavioral Characteristics Related to Science Learning and Their Perceptions toward Scientific and/or Technological Professions (초등학생들의 과학 학습과 관련된 인지적, 정의적, 행동적 특성과 과학기술 관련 직업에 대한 인식의 관계)

  • Kim, Kyung-Sun;Lee, Seon-Woo;Noh, Tae-Hee
    • Journal of Korean Elementary Science Education
    • /
    • v.28 no.2
    • /
    • pp.121-131
    • /
    • 2009
  • In this study, we investigated the elementary school students' perceptions toward scientific and/or technological professions in the views of accuracy, complexity, and diversity, and compared them by the students' grades and their science-related career aspiration levels. We also studied the relationships among the students' perceptions toward scientific and/or technological professions and their cognitive (science achievement), affective (enjoyment of science lessons, attitude to scientific inquiry, self-efficacy), and behavioral (participation in science-related activity) characteristics. The subjects were 369 students of 4th and 6th grades at three elementary schools in Seoul. The results revealed that the students were relatively well aware of what works and professions in science and/or technology were, but they did not have good understanding of them in the views of complexity and diversity. The 6th graders had better perceptions toward science and/or technological professions than 4th graders, although they showed the lower scores of attitude to scientific inquiry. Moreover, the higher science-related career aspirations were, the higher scores in all tests of the perceptions and the personal characteristics were. The students' perceptions toward scientific and/or technological professions were found to have relationships with their cognitive, affective, and behavioral characteristics. The multiple regression analysis of the personal characteristics on the perceptions toward scientific and/or technological professions indicated that science-related activity, science achievement, and self-efficacy were significant predictors. Educational implications are discussed.

  • PDF

My C.I.

  • Korea Institute of Science and Technology Information
    • Journal of Scientific & Technological Knowledge Infrastructure
    • /
    • s.30
    • /
    • pp.4-5
    • /
    • 2008
  • PDF