• Title/Summary/Keyword: 과학적 증거

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Forest Biomass Utilization for Energy Based on Scientifically Grounded and Orthodox (산림바이오매스에너지에 관한 과학적 근거에 따른 통설적 접근)

  • Seung-Rok Lee;Gyu-Seong Han
    • New & Renewable Energy
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    • v.20 no.1
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    • pp.145-174
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    • 2024
  • Addressing climate change necessitates evidence-based policies grounded in science. The use of forest biomass for energy production is based on a broad scientific consensus at the international level. However, some environmental groups in South Korea are opposing this system of energy production. Through this study, the authors aim to reduce unnecessary confusion and foster an atmosphere conducive to meaningful evidence-based policies. We have classified the issue into eight categories: biological carbon cycle, carbon debt, nature-based solutions, air emissions, cascading principles and sustainability certification, forest environmental impacts, climate change litigation, and the behavior of environmental groups and public perception. Consequently, the following key points were derived: (1) the actions of some environmental groups seem to follow a similar pattern to denialist behavior that denies climate change and climate science; (2) the quality of evidence for campaigns that oppose the use of forest biomass for energy production is low, with a tendency to overgeneralize information, high uncertainty, and difficulty in finding new claims.; (3) most of the public believes that forest biomass energy is necessary, and the governments of major countries are aware of its importance. Significantly, Forest biomass for energy is based on an overwhelming level of scientific consensus recognized internationally.

Exploring Science Communicators' Competencies for Public Understanding of Science (PUS): Focusing on National and International Science Communicators' Curriculums (과학대중화를 위한 과학관 해설사 역량 탐색 : 국내·외 과학관 해설사 교육과정을 중심으로)

  • Young-Shin, Park
    • Journal of the Korean Society of Earth Science Education
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    • v.15 no.3
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    • pp.373-390
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    • 2022
  • Science museums are platforms of PUS (public understanding of science). The purpose of this study was to explore the science communicators' competencies critical in interacting with visitors from the comparison of their training and professional development programs nationally and internationally. The managers running science communicators' programs and communicators themselves from six different national science museums and those from five different international ones participated in the structured survey. The data from surveys were compared among respondents to draw common and specific descriptions for communicators' competencies. In addition, the experienced exemplary science communicator, Ms. Park, participated in this study and the data from her observation field notes, her own developed science communicators' manual, and interviews were used to support the result. The contextual model of learning in science museums (Falk, 2006) was used to illustrate science communicators' expertise. National managers and science communicators showed difference in their perception about science communicators' roles, difficulties, and improvement for their competencies. Internationally, the managers and science communicators showed similar perception about communicators' competencies in terms of the contextual model of learning. It is highly suggested that practice-based science communicators' training and professional development programs must be offered on the basis of interaction between experienced and novice communicators as mentors and mentees systems.

Scientific Exploration of the Footprints in the Folktale: The Footprints of Munhojang, Changnyeong-gun, Gyeongsangnam-do, Korea (설화 속 발자국에 대한 과학적 탐색: 경남 창녕군 문호장 발자국)

  • Jung, Seung-Ho;Kim, TaeHyeong;Ahn, Jaehong
    • The Journal of the Korea Contents Association
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    • v.21 no.8
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    • pp.49-59
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    • 2021
  • Since ancient times, legends and tales have been handed down with a spirituality, shamanistic meaning, and imagination. Among many tales about people and animal footprints that are handed down in various parts of Korea, Changnyeong's 'Munhojang Footprint' is the first case in which the physical evidence(footprints) that the main character has left was identified as a dinosaur footprint. In this study, we performed a scientific analysis based on the basic data collection, distribution pattern of 'Munhojang Footprint', three-dimensional digital recording and visualization, as well as case analysis and humanitic review of footprints in tales and legends. The Munhojang Footprints has long been known as human footprints left in the natural rock due to its shape and preservation status. A new analysis that the Munhojang footprints (composed of 13 footprints) are dinosaur tracks shows social perceptions of the ancient people, characterized by the fear of supernatural beings and the limits of scientific interpretation. Through this scientific and humanistic exploration of Munhojang Footprint that are passed down from generation to generation as legends, pray for peace and well-being of the village through rituals and rituals every year, and have been preserved and managed as practical evidence, it is expected that traditional culture and natural heritage will be linked and mutual value will be enhanced.

The Impact of Argument-Based Inquiry Approach on Elementary School Students' Critical Thinking in Elementary School Science Class (초등학교 과학수업에서 논의기반 탐구수업이 초등학생의 비판적 사고에 미치는 영향)

  • Jiaeng Park;Jeonghee Nam
    • Journal of the Korean Chemical Society
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    • v.68 no.4
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    • pp.221-234
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    • 2024
  • The purpose of this study was to examine the impact of Argument-based Inquiry approach on elementary school students' critical thinking in elementary school science class. For this purpose, 23 students from two 5th grade elementary school classes in a metropolitan city were selected. One class (11 students) was assigned as the experimental group which Argument-based inquiry approach on 10 topics were applied. To determine the impact of Argument-based Inquiry approach on critical thinking, we analyzed the results of critical thinking tests before and after class and recordings of the discussion process of students in the experimental group. As a result of the critical thinking analysis, the average score of the experimental group in the deduction section was statistically and significantly higher than that of the comparative group. And as a result of analysis of recordings of the discussion process, students used deductive reasoning more often than inductive reasoning, and their use of this reasoning increased significantly at the claim·evidence stage.

Understanding of Scientific Inquiry Developed by Beginning Science Teachers in Professional Learning Community (교사학습공동체 활동을 한 초임중등과학교사의 과학 탐구에 대한 이해)

  • Kim, Yurim;Choi, Aeran
    • Journal of The Korean Association For Science Education
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    • v.39 no.2
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    • pp.221-232
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    • 2019
  • Despite the continuing emphasis on the importance of scientific inquiry, research studies have commented that authentic scientific inquiry is not implemented in school science classroom due to a lack of understanding of scientific inquiry by the teacher. The purpose of this study is to investigate understanding of scientific inquiry developed by beginning teachers through open-ended questionnaire and semi-structured interview. They voluntarily set up the goal of inquiry-based classes, planned inquiry-based classes, shared and reflected their teaching experience in professional learning community for more than a year. It appeared that participant teachers understood scientific inquiry as 'what scientists do', 'process how students do science' and 'science teaching methods.' All teacher participants described scientific inquiry as 'what scientists do', and understood 'the process of doing scientific investigation to solve problems related to natural phenomenon' and 'the process of constructing scientific knowledge using scientific practice.' Two participant teachers seemed to understand scientific inquiry as a 'teaching method' based on the understanding of the process how scientists or students do science. Participant teachers had a limited understanding of scientific inquiry that it is the same as laboratory works or hands-on activities prior to engaging the professional learning community, but they developed an understanding of scientific inquiry that there are various ways to conduct scientific inquiry after engaging in professional learning community.

Study on the EDA based Statistics Attributes Discovery and Utilization for the Maritime Safety Statistics Items Diversification (해상안전 통계 항목 다양화를 위한 EDA 기반 통계 속성 도출 및 활용에 관한 연구)

  • Kang, Seong Kyung;Lee, Young Jai
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.26 no.7
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    • pp.798-809
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    • 2020
  • Evidence-based policymaking and assessments for scientific administration have increased the importance of statistics (data) utilization. Statistics can explain specific phenomena by providing numerical values and are a public resource for national decision making. Due to these inherent attributes, statistics are utilized as baseline and base data for government policy determinations and the analysis of various phenomena. However, compared to the importance, the role of statistics is limited, and statistics are often used as simple abstracts, produced mainly for suppliers, not for consumers' perspectives to create value. This study explores the statistical data and other attributes that can be utilized for policies or research to address the problems mentioned above. The baseline statistical data used in this study is from the Maritime Distress Accident Statistical Yearbook published by the South Korean Coast Guard, and other additional attributes are from text analyses of vessel casualty situation reports from the South Korean Maritime Police. Collecting 56 attributes drawn from the text analysis and executing an EDA resulted in 88 attribute unions: 18 attribute unions had a satisfactory significance probability (p-value < .05) and a strong correlation coefficient above 0.7, and 70 attribute unions had a middle correlation. (over 0.4 and under 0.7). Additionally, to utilize the extra attributes discovered from the EDA politically, a keyword analysis for each detailed strategy of the disaster Preparation basic plan was executed, the utilization availability of the attributes was obtained using a matching process of keywords, and the EDA deducted attributes were examined.

A Study for Comparing the Legal Importance of Digital Forensics Issues in Korea (국내 디지털 포렌식 분야에서 법률적 이슈사항의 중요도 인식에 따른 우선순위 비교 연구)

  • Jae Bin Lee;Won Kyung Sung;Choong C. Lee
    • Information Systems Review
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    • v.19 no.2
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    • pp.185-209
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    • 2017
  • In modern society, crime records have been digitized. Digital information is difficult to distinguish from original information, but the former is easy to modulate. This situation explains the increasing importance of digital forensics. However, digital forensic has several inefficiencies because of the rapid development of technology, unclear jurisdiction, and tool errors. This study surveyed digital forensic specialists and derived the priority of domestic digital forensic issues by redefining 17 issues in digital forensics from Brungs-Jamieson study in Australia. The present study was divided into four groups, namely, police, government and public corporations, private companies, and legal groups. The study could compare and analyze comparative analysis of existing studies in Australia and the US. This study can also examine differences in the results of each group in Korea. Thus, the key issues in Korea were derived as "Requirements to 'Fire Up' Original." The differences of the three groups in terms of legal issues were then identified. This finding enables us to understand differences in priorities and importance between groups and countries.

The Historic Value of Photographic Records in the News and Culture Magazine 'Sasanggye' (시사교양잡지 『사상계』의 사진기록물과 기록학적 가치)

  • Jung, Eun Ah;Park, Ju Seok
    • The Korean Journal of Archival Studies
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    • no.79
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    • pp.471-513
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    • 2024
  • The monthly news and culture magazine, 'Sasanggye,' established by Jang Jun-ha from 1953 to 1970, served as a platform for government criticism and intellectual representation. The magazine created photographic-essays covering a variety of topics and utilized images as a visually impactful tool with news value. This paper aims to critically examine the photographic-essays within 'Sasanggye' as archival records, shedding light on their intrinsic value. Before delving into this assessment, the paper thoroughly explores the developmental process and characteristics of these photographic-essays. And based on the content divisions within the main text, the paper categorized the themes captured in the photographic essays into politics, economics, society, culture, and miscellaneous topics. It then introduced representative photographicessays. From an archival perspective, looking at photographs involves elucidating that photographs carry meanings beyond mere data. The photographic essays in 'Sasanggye' serve as photographic records providing evidence of 1960s Korean society and encapsulating crucial visual information. Furthermore, the photographic essays in 'Sasanggye' hold a historical significance in the aspect of Korean magazine documentary photography. The photo-essays in 'Sasanggye' carry worth in the history of photography and encompass evidential and informational values as photographic records.

The Relationship of European Landscape Painting and the Scientific (Visual) Instruments in the Pre-modern Period: On the Using of Camera obscura and Camera lucida in the Artistic Works by Canaletto·Sandby·Talbot (근대 유럽 풍경화와 과학(영상)기구의 연관성 - 카날레토·샌드비·탈보트의 미술작업에서 카메라 옵스쿠라와 카메라 루시다의 사용에 대해)

  • LEE, Sangmyon
    • Korean Association for Visual Culture
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    • v.23
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    • pp.329-368
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    • 2013
  • This thesis investigates the relationship of the 18th century European landscape painting and the scientific (optical) instruments like Camera obscura and Camera lucida. Based on the fact that some landscape painters, 'veduta painters', at that times might have used or surely used these optical instruments in their sketches/drawings, it explores the reasons for using them and their working process with them, and analyses the advantages/disadvantages here as well as the aesthetic problems in the cases of the Italian painter Antonio Canaletto (or Canal, 1697-1768), the British topographic artist Thomas Sandby (1721-98) and the British chemist/optician Willian Henry Fox Talbot (1800-77). Advantages of using Camera obscura/lucida are rapidity in drawing, truthful representation of nature/reality and 'accurate' fulfilling of perspectival structures. But partly 'inaccurate' or simplified depictions as disadvantages can be traced in drawings/sketches made by using these instruments. Another problem lie in the subordination of the artistic work to the technical devices, but for artists still remain the creative working process in painting like coloring, tone and chiaroscuro etc. Therefore, it can be maintained that the optical instruments have played a role of the subsidiary tool as an aid to painting.

Impact of Peer Assessment Activities on High School Student's Argumentation in Argument-Based Inquiry (논의 기반 탐구 과학수업에서 동료평가 활동이 고등학생의 논의에 미치는 영향)

  • Lee, Seonwoo;Bak, Deokchan;Nam, Jeonghee
    • Journal of The Korean Association For Science Education
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    • v.35 no.3
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    • pp.353-361
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    • 2015
  • This study focused on the use of peer assessment activities to investigate its the impact on students' argumentation skills in argument-based inquiry. The participants of the study were 106 10th grade students (four classes). Two classes were assigned to the experimental group, and the other two classes were assigned to the comparative group. The experimental group was taught argument-based inquiry through the application of peer assessment activities. The comparative group was taught argument-based inquiry without peer assessments. At the claim and evidence stage, students were asked to evaluate whether peers' claims fit with the evidence and whether peers' explanation of the evidences validity was sufficient. The quality of argumentation used in the students' writing was different in each group. According to the analysis of the summary writing test, the results showed that the experimental group had a significantly higher mean score than the comparative group in argumentation components, including evidence and warrant/backing. In addition, the experimental group used better multimodal representation including explanation of evidence than the comparative group. The findings showed that argument-based inquiry applying peer assessment activities had an effect on the argumentation skills in students' writing.