• Title/Summary/Keyword: Scientific

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A Study on the Social Position of Scientific Technologists in Science-Based Industry (과학산업화시대의 과학기술자의 사회적 위치에 관한 연구)

  • Kim, Young-Hun
    • Journal of Digital Convergence
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    • v.10 no.9
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    • pp.15-26
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    • 2012
  • Korea's S&T communities were expanded rapidly according to the development of science-based industry. But their economic positions is low despite of their social importance. It's one of the reasons why Korean teenagers avoid S&T. Today, the global economy is relying on science and technology. Human Resource of Science and Technology is a important factor of national development. Scientific technologists' community should find their suitable social positions. The purpose of this study is to identify various issues contributing to the current issues of scientific technologists society not wanting to social activities and further explore various strategies to encourage their higher activities in the society and economy area. This result is beginning stage and has lot of things to be settled. Also presents initiative for further development of scientific technologists society. Based on information and learning that are extracted from the attempts found in several cases of scientific technologists society over the world, the initiatives would pave the way for our scientific technologists society.

Structure and Characteristic Analysis of Chinese Scientific Research Network Based on the SNA (SNA를 활용한 중국 과학연구 네트워크의 구조 및 특징 분석에 관한 연구)

  • Chao, Na;Kim, Hyung-Ho
    • Journal of Digital Convergence
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    • v.18 no.6
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    • pp.121-132
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    • 2020
  • The purpose of this study is to identify the current status and research trends of the efficiency assessment of scientific research and development in Chinese universities over the last 10 years through social network analysis(SNA). The data used in the analysis were extracted from 589 papers from CNKI academic archives in China and analyzed among them 190 papers directly related to the evaluation of scientific research and development efficiency. The analysis showed that the present state of science and technology research efficiency assessment in Chinese universities, identifying research trends, major factors on scientific research and development and major factors promoting exchanges of scientific research. This study can provide positive meaning to facilitate the development of scientific research and development in universities, enhance scientific research management and promote knowledge exchange. This study has limitations in comprehensively analyzing scientific research trends in the actual Chinese research environment. Subsequent studies need to compare trends in China and other countries.

Effect of Trichostatin A on CNE2 Nasopharyngeal Carcinoma Cells - Genome-wide DNA Methylation Alteration

  • Yang, Xiao-Li;Zhang, Cheng-Dong;Wu, Hua-Yu;Wu, Yong-Hu;Zhang, Yue-Ning;Qin, Meng-Bin;Wu, Hua;Liu, Xiao-Chun;Lina, Xing;Lu, Shao-Ming
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.11
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    • pp.4663-4670
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    • 2014
  • Trichostatin A (TSA) is a histone deacetylase (HDAC) inhibitor. We here investigated its effects on proliferation and apoptosis of the CNE2 carcinoma cell line, and attempted to establish genome-wide DNA methylation alteration due to differentially histone acetylation status. After cells were treated by TSA, the inhibitory rate of cell proliferation was examined with a CCK8 kit, and cell apoptosis was determined by flow cytometry. Compared to control, TSA inhibited CNE2 cell growth and induced apoptosis. Furthermore, TSA was found to induce genome-wide methylation alteration as assessed by genome-wide methylation array. Overall DNA methylation level of cells treated with TSA was higher than in controls. Function and pathway analysis revealed that many genes with methylation alteration were involved in key biological roles, such as apoptosis and cell proliferation. Three genes (DAP3, HSPB1 and CLDN) were independently confirmed by quantitative real-time PCR. Finally, we conclude that TSA inhibits CNE2 cell growth and induces apoptosis in vitro involving genome-wide DNA methylation alteration, so that it has promising application prospects in treatment of NPC in vivo. Although many unreported hypermethylated/hypomethylated genes should be further analyzed and validated, the pointers to new biomarkers and therapeutic strategies in the treatment of NPC should be stressed.

The Effects of Emotional Intelligence and Achievement Goal Orientation on Career Maturity of the Elementary Scientific Gifted Students (초등과학영재의 정서지능과 성취목표지향성이 진로성숙도에 미치는 영향)

  • Lim, Hyeon-Ji;Choi, Sun Young
    • Journal of Korean Elementary Science Education
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    • v.35 no.3
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    • pp.316-325
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    • 2016
  • The purpose of this study was to identify the influence of emotional intelligence and achievement goal orientation on career maturity for elementary scientific gifted students. For this purpose, emotional intelligence test, achievement goal orientation measure and career maturity test were used. Sample of the study was consisted of 107 science gifted students and 98 general students in Y City, Gyeonggi Province. The results of this study were as follows. First, scientific gifted students showed higher score than general students, whereas general students had highest score in type of avoidance goal orientation of achievement goal orientation. Also, scientific gifted students showed highest score in mastery goal orientation of those. Second, the correlation between emotional intelligence and career maturity of scientific gifted students showed significantly positive score in almost all the subelements. As a result of conducting a regression analysis on the influence of emotional intelligence on career maturity of scientific gifted students, job planning and self-understanding of career maturity were impacted by emotional intelligence, whereas independence was low influence by emotional intelligence. Third, for the correlation between achievement goal orientation and career maturity of scientific gifted students, mastery goal orientation of achievement goal orientation had positive relationship in almost all the subelements, whereas mastery avoidance goal orientation and performance-avoidance goal orientation had negative correlation. Also, as a result of conducting a regression analysis on the influence of achievement goal orientation on career maturity of scientific gifted students, achievement goal orientation had influence on all the subelements of career maturity.

Epistemological Views of Middle School Students on Scientific Inquiry (중학생들의 과학 탐구에 대한 인식론적 견해)

  • Han, Su-Jin;Choi, Sook-Yeong;Noh, Tae-Hee
    • Journal of The Korean Association For Science Education
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    • v.32 no.1
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    • pp.82-94
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    • 2012
  • In this study, epistemological views of middle school students on scientific inquiry were investigated. The Views of Scientific Inquiry Questionnaire was administered to 141 9th graders. The questionnaire consists of five open-ended items concerning the contexts of scientific investigation, the methods of scientific investigation, the interpretation of data, and the data and evidence. Analyses of the results indicated that their epistemological understanding of scientific inquiry were not adequate on the whole. Although the students suggested a variety of factors influencing scientists' decisions on the questions and the methods of investigation, many of the factors were minor. Only a few students specifically described the activities of scientists and the constituents of "scientific" activity, and students did not demonstrate adequate understanding of experimentation in science and multiple scientific methods. Moreover, the percentage of students who possessed the informed view that data can be variously interpreted was found to be low. The students also did not understand the distinctions between data and evidence. Educational implications are discussed.

The Development of the Virtual Reality System for Augmenting Scientific Inquiry Learning Environments (과학적 탐구학습을 지원하는 가상현실 시스템 개발에 관한 연구)

  • Im, Jae-Won;Kim, Seok-Hwan;Cho, Yong-Joo;Park, Kyoung-Shin
    • The KIPS Transactions:PartB
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    • v.15B no.2
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    • pp.95-102
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    • 2008
  • The interactive virtual reality technology has used in scientific inquiry learning since it can overcome the restriction of real world and it draws user's interest and foster active participation. However, prior works are mostly designed for a specific inquiry learning lesson and it is quite difficult to use them for constructing other inquiry learning environments. Hence, we developed the integrated virtual reality system, SASILE (System for Augmenting Scientific Inquiry Learning Environments), that helps ease the development of the scientific inquiry learning environment. In this paper, we first describe the related works on supporting VR scientific inquiry learning systems, followed by the SASILE system architecture and implementation. Then, we illustrate the use of this system to develop a Virtual Moyangsung application for teaching a scientific structure of Korean traditional house by exploring and observing the convection currents as well as a Mars Rover application for estimating the asteroid impacts on Mars by measuring rock properties. Finally, we will discuss the future research directions for this system.

Development of Views on Science Questionnaire on the Basis of Experienced Scientific Knowledge, Atomic Model

  • An, Yu-La;Shin, Ho-Sim;Kim, Hyun-Joo
    • Journal of The Korean Association For Science Education
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    • v.32 no.3
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    • pp.428-445
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    • 2012
  • The objective of this study is developing an instrument for investigating views of the respondents on nature of science(NOS) by using experienced scientific knowledge, atomic model. It consists of total six questions and 36 detail items, and each question is reflected the aspects of different NOS which are 'recognition on the model', 'tentativeness of scientific knowledge', 'subjectivity in science', 'use of inference and imagination', 'myths of the scientific method', and 'comparison between science and art'. Particularly, 'comparison between science and art' is addressed almost for the first time in this questionnaire. In the class environment almost not to teach nature of science linking with concrete scientific knowledge, to inquire how the students recognize nature of science, relating to experienced scientific knowledge through this questionnaire will give the data of scientific knowledge based recognition on the nature of science and an important implication for nature of science teaching with concrete scientific knowledge. Developing processes have gone through four steps. In first step, we chose aspects of NOS and developed questions and details. In second step, we tested the draft into fifteen science teachers and, reflecting their opinions, corrected the form and contents of questionnaires. In third step, we tested the questionnaire included writing section for expressing thoughts of the respondents into 55 students in science high school and checked index of coincidence between Likert and open-ended responses which shows 88.2% degree of consensus. Furthermore, to identify the feature of using concrete scientific knowledge we applied this and views on science and education questionnaires together into six university students. We performed final test to 68 university students and measured Cronbach's, and ultimately completed final questionnaire in last step.

A Preliminary Study on High School Students' Understanding of the Distinction between Scientific Theories and Scientific Laws (과학 이론과 과학 법칙의 차이에 대한 고등학생들의 인식 연구)

  • Lee, Eun-Ah;Park, Byeong-Geon
    • Journal of the Korean earth science society
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    • v.29 no.1
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    • pp.91-97
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    • 2008
  • The purpose of this study is to explore high school students' understanding of the distinction between scientific theories and scientific laws. Understanding of the distinction between these two concepts, which belong to the nature of science, has been receiving little attention. We surveyed thirty-two students from a local high school with three-part, open-ended questionnaire. The result revealed that these students shared common misconceptions such as 'scientific theories are unproven, scientific laws are proven and absolute', and 'if a theory is proven with enough evidence, it becomes a law'. Moreover, students tend to regard earth science less sophisticated than physical science, because they recognize a lot of its theories to be unproven in their view. It is indicated further that teaching the difference between scientific theories and laws explicitly could help students possess more appropriate view toward earth science.

The Survey of Gifted Students' Scientific Integrity and Perception of Scientific Misconduct in R&E Program (R&E 수행과정에서 과학영재고 학생의 연구윤리 준수 실태 조사)

  • Lee, Jiwon;Kim, Jung Bog
    • Journal of Gifted/Talented Education
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    • v.25 no.4
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    • pp.565-580
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    • 2015
  • We investigated gifted students' scientific integrity, perception of scientific misconduct and needs for research ethics education. For this study, 267 science academy students who have participated in R&E program responded to questionnaire of those three parts. The major findings are as follows: First, 45.31% of gifted students answered that they had one or more experiences in five categories; fabrication, falsification, plagiarism, unfair authorship, and connivance of scientific misconduct. Second, almost 90% of gifted students responded that statements of questions are scientific misconduct except the self plagiarism. Third, 28.83% of gifted students needed to study research ethics and all of them were 1st graders. Fourth, they wanted to know specifically the limit of apt citation, writing skills of research notes, specific examples of scientific misconduct, and concrete acting method for scientific integrity, etc. In order to get gifted students to conduct their research responsibly, educators have to consider and reflect the voice of gifted students.

Elementary Pre-service Teachers' Conceptions on 'the Freezing Point Depression' and a Proposal of Explanatory Models ('어는점 내림'에 대한 초등 예비교사들의 인식 조사 및 설명 모형 제안)

  • Kim, Han-Je;Joung, Yong Jae;Jang, Myoung-Duk
    • Journal of Korean Elementary Science Education
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    • v.32 no.2
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    • pp.206-224
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    • 2013
  • The purpose of this study is to investigate the elementary pre-service teachers' conceptions on 'the freezing point depression' focusing on the survey from a National University of Education. Eighteen pre-service teachers who had completed high school Chemistry II coursework were selected to participate in the study. Participants answered a four question survey to measure their scientific knowledge and conceptions of this phenomenon. Each answer was qualitatively analyzed to determine whether they have 'scientific conceptions' or 'quasi-scientific conceptions' or 'misconceptions'. The results from the study are as follows: First, it was showed that none of the eighteen participants had 'scientific conceptions', six had 'quasi-scientific conceptions' and eight had 'misconceptions' about the caused effect when $CaCl_2$ is scattered on the ice. Second, it was found that three participants had 'scientific conceptions', eight had 'quasi-scientific conceptions' and two had 'misconceptions' for the second survey question. Third, ten out of eighteen participants demonstrated 'scientific conceptions' about the phenomenon of salt water freezing. Fourth, only three of eighteen participants illustrated appropriate 'scientific conceptions' for the fourth survey question. Fifth, of all participants, none answered more than three questions correctly, and only three participants answered any combination of two questions correctly. Based on the findings of this study, five explanatory models were developed. And the models were proposed for pre-service teachers to enhance their understanding of the freezing point depression phenomenon.