• Title/Summary/Keyword: 과학 기사

Search Result 272, Processing Time 0.026 seconds

Public Perception on Non-native Species: Based on the News Articles about the Alligator Snapping Turtle (Macrochelys temminckii) (외래생물에 대한 대중의 문제 인식: 악어거북 뉴스 기사를 바탕으로)

  • Kim, Hyunjung;Park, Seoung-Min;Jang, Yikweon;Koo, Kyo Soung
    • Korean Journal of Environment and Ecology
    • /
    • v.34 no.5
    • /
    • pp.396-401
    • /
    • 2020
  • As the world becomes more globalized, the non-native species issue has emerged as a problem that is growing internationally. In particular, the number of non-native turtles found in the wild has been increasing sharply in South Korea. At least 15 species of non-native turtles, including the red-eared slider (Trachemys scripta elegans) first imported in the 1970s, have been found in Korea. On October 15, 2019, an alligator snapping turtle (AST, Macrochelys temminckii) was found in a stream located in Gwangju city, South Korea. The discovery of AST became a big issue in South Korea as the animal is known for its large body size and aggressiveness and was featured widely in the mass media. In this study, to learn the public's perception of non-native species, we examined comments (opinions) to the online news articles about the AST. We collected 1,100 comments from the Internet news articles on the AST. Out of the 1,100 comments, 342 (31.1%) comments were related to non-native species' issues. Most of the respondents (97.7%, n=334) stated that the non-native species are a problem. Forty two comments mentioned potential threats posed by non-native species: non-native species' aggressive nature (n=11, 26.2%) and ecological disturbance (n=31, 73.8%). Lack of responsibility (n=122, 51.7%) was the major causative factor for the introduction of non-native species, and followed by indiscriminate pet trade (n=99, 42.0%), absence of relevant legislation (n=13, 5.5%), and absence of treatment (n=2, 0.8%). Animal registration (n=59, 45.7%) was the most commonly mentioned as the way to deal with the issue of the non-native species' invasion. Our results show that the public is aware of the seriousness of the invasion of non-native species, including AST. This study highlights that researchers and government officials need to consider the public's perception and opinions. We believe that our study can serve as an essential reference for the policy direction and the management of non-native species.

A Review on the Analysis of the Equatorial Current System and the Variability during the El Niño Period: Focusing on the Misconceptions in the Field of Secondary Education (적도 해류계 분석 및 엘니뇨 시기의 변동에 관한 논의: 중등 교육 현장의 관련 오개념을 중심으로)

  • Chang, You-Soon
    • Journal of the Korean earth science society
    • /
    • v.42 no.3
    • /
    • pp.296-310
    • /
    • 2021
  • El Niño is a typical ocean and atmospheric interaction phenomenon that causes climate variability on a global scale, so it has been used as a very important teaching and learning material in the field of earth science. This study summarized the distribution and dynamics of the equatorial current system. The variability of the equatorial current system during the El Niño period and the associated misconceptions were also investigated. The North Equatorial Current, South Equatorial Current, and Equatorial Under Current significantly weaken during El Niño years. However, the variability of the North Equatorial Counter Current (NECC) during the El Niño period cannot be generalized because the NECC shows southward movement with weakening in the northern area and strengthening in the southern area, along its central axis. In the western Pacific, the NECC is further south during El Niño years, and thus, it has an eastward flow in the equatorial western Pacific. Our analysis of a mass media science article, a secondary school exam, and a survey for incumbent teachers confirmed disparate ideas about the equatorial current system's variability during El Niño periods. This is likely due to inaccurate interpretations of the existing El Niño schematic diagram and insufficient understanding of the equatorial current and wave dynamics.

The Development on Core Competency Model of Scientist and Its Verification for Competency-Based Science Gifted Education (역량 중심의 과학 영재 교육을 위한 과학자의 핵심 역량 모델 개발 및 타당화)

  • Park, Jae-Jin;Yoon, Jihyun;Kang, Seong-Joo
    • Journal of Gifted/Talented Education
    • /
    • v.24 no.4
    • /
    • pp.509-541
    • /
    • 2014
  • There was a great need to consider a core competency-based approach as a new direction of the science education for gifted students according to the value and vision of the 21st century knowledge-based societies. Therefore we developed a core competency model of scientist and examined its validity as a prerequisite for a core competency-based education of science gifted students. In order to this, the survey was conducted after developing questionnaire through the theoretical review of the various resources such as paper, book, and newspaper articles and the qualitative analysis of the behavioral event interview, and then an exploratory factor analysis was performed to validate the factor structure based on the results of the survey. The results revealed that the core competency model with the 5 cluster units of competency and the 15 core competencies was potentially constituted. And the reliability, convergent validity, and discriminant validity of the core competency model were verified through the confirmatory factor analysis. The cognitive cluster consisted of 5 competencies and they were as follows: creative, comprehensive, exploratory, analytical, and conceptual thinking competency. The achievement-orientation cluster consisted of 3 competencies and they were as follows: initiative, preparation & problem solving, and strategic influence competency. The scientific attitude cluster consisted of 3 competencies and they were as follows: flexible thinking & attitude, passion for research, and views about science competency. The personal effectiveness cluster consisted of 2 competencies and they were as follows: diverse experiences and global attitude competency. Finally, the networking cluster consisted of 2 competencies and they were as follows: personal understanding and communication competency. Findings were expected to provide the basic data for developing programs and establishing strategies based on the core competency as well as introducing the core competency model of scientist to science education for gifted students effectively.

Curation Service to Improve User's Access to National R & D Information : Focusing on Issues R&D Service (사용자의 국가 R&D 정보 이용 접근성 향상을 위한 큐레이션 서비스 : 이슈로 보는 R&D 사례를 중심으로)

  • Yu, Eun-ji;Choi, Kwang-Nam;Hwang, Youna
    • The Journal of the Korea Contents Association
    • /
    • v.20 no.9
    • /
    • pp.1-10
    • /
    • 2020
  • National R & D data covers information in all fields from basic science research to industrialization, but it is expressed in technical terms, which make it difficult for the public to use. Accordingly, NTIS developed and launched the data curation service 'R&D issue service', which selects national R&D information on national and social issues and provides them to the public. Therefore, this study aims to analyze the effect of a data curation service on NTIS users' access to R&D data and suggest how to develop the curation service. The R&D issue service extracts issue from the news article and provide related national R&D projects, achievements and major research institute. All raw data used for the service are open to the public, organized in a report format and provided as PDF files. In addition, automative process is developed for all NTIS users to make individual issue packaging like administrator. The results show that 'R&D issue service' launching increases users' access and convenience to R&D data related to major issues, and the number of page views of users increased after the service was opened.

The Role of Perfusionists during the COVID-19 Pandemic and Clinical Laboratory Technologists: Comparison of Training Systems in Japan and the United States (코로나19를 통해서 바라본 체외순환사의 역할과 임상병리사: 일본과 미국의 양성체계를 비교)

  • Dong-Ok, Aum;Dae Jin, Kim;Dae Eun, Kim;Myong Soo, Kim;Bon-Kyeong, Koo
    • Korean Journal of Clinical Laboratory Science
    • /
    • v.54 no.4
    • /
    • pp.293-297
    • /
    • 2022
  • In 2022, Korea reported a total of 224 perfusionists, employing nurses or clinical laboratory technologists (also known as medical technologists) to provide hospital self-education or reliable education. In 2021, the total number of perfusionists in Japan was 2,100, mainly supported by clinical engineering technologists. During the same period, the number of perfusionists reported in the United States was 4,212, who had received training in the master's program, post-bachelor certificate program, and bachelor's program. Most personnel in the USA were graduates of healthcare sciences or life sciences. Perfusionists must be knowledgeable in heart anatomy, physiology, pharmacology, pathology, hemodynamics, laboratory analysis, and quality assurance, as well as techniques to operate the cardiopulmonary bypass machine (heart-lung bypass machine). These are jobs similarly handled by clinical laboratory technologists. The importance of perfusionists became more prominent during two major crises: the MERS-CoV and COVID-19 pandemic. Currently, perfusionists play a significant role in the rapidly expanding field of extracorporeal membrane oxygenation (ECMO) and extracorporeal circulation during cardiac surgery. Results of the current study indicate that hospitals offering cardiac surgery and infectious disease hospitalization need to be institutionalized to secure a certain number of qualified perfusionists. In the future, we look forward to establishing a perfusion technology association under the Korean Society for Clinical Laboratory Physiology to provide academic exchanges.

A Comparative Study on the Balance of Musculoskelectal System between Long-Term Employed Male Taxi Drivers and General People - through Moire Topography (장기근속 남성 택시기사와 일반인의 근골격계 균형에 관한 비교 연구 - 모아레 체형측정법을 통해)

  • Lim, Sang-Hoon;Park, Dong-Su;Lee, Kyung-Moo;Jeong, Su-Hyeon;Kim, Soon-Joong
    • Journal of Korean Medicine Rehabilitation
    • /
    • v.18 no.1
    • /
    • pp.141-151
    • /
    • 2008
  • Objectives : The purpose of this study was to investigate effects of long-term taxi driving posture on the balance of musculoskelectal system. Methods : The author practiced Moire topography by using IBS-2000 for 30 male taxi drivers and general people. Then we measured difference of contour lines, difference of shoulder joint height, interval between vertical baseline of pelvis and vertical baseline of neck, ratio of thoracic curve and lumbar curve, difference of width between right and left through Moire topography. After we statistically analyzed difference of Moire topography's data between long-term employed male taxi drivers and general people. Results : 1. Taxi drivers, difference of contour lines in scapular, lumbar, gluteal region was bigger than general people and significant difference(p<0.05) was observed between subject group. 2. Taxi drivers, diference of shoulder joint height was more large than general people and significant difference(p<0.01) was observed between subject group. 3. Taxi drivers, diference of interval between vertical baseline of pelvis and vertical baseline of neck was more large than general people and significant difference((p<0.05) was observed between subject group. 4. Taxi drivers, ratio of thoracic curve was more large than general people and ratio of lumbar curve was more less than general people and significant difference(p<0.05) was observed between subject group. Conclusions : According to above results long-term taxi driving posture might cause musculoskelectal system unbalance.

Reexamination of foreign collector's sites and exploration routes in Korea (IV) - with respect to T. Ishidoya (외국인의 한반도 식물 채집행적과 지명 재고(IV): Tstomu Ishidoya 석호곡면(石戶谷勉))

  • Chang, Chin-Sung;Chang, Kae-Sun
    • Korean Journal of Plant Taxonomy
    • /
    • v.40 no.2
    • /
    • pp.90-104
    • /
    • 2010
  • Tstomu Ishidoya (1891-1958), a Japanese taxonomist and pharmacognosist, conducted his plant explorations on the Korean peninsula from 1911 to 1943. Especially from 1912 to 1923 Ishidoya, as a governmentemployee of Chosen Governor-General collected numerous specimens of woody plants which were later studied by T. Nakai. Collection numbers totalling 6,487 (= collections) were recorded according to Nakai's studies, while only 1,350 speciemens are confirmed to be preserved now in three Japanese herbaria (Tokyo Universtiy, Kyoto University and National Museum of Nature and Science). All collection sites were described by Nakai using romanized characters with Japanese pronunciation. For this study, one hundred seventy three locality names were reviewed using those of Ishidoya's specimens that are deposited at TI, KYO, and TNS; the database, Korean Biodiversity Information System (http://www.nature.go.kr), and the articles and literature of Nakai and Ishidoya. These are listed in the order of his collection dates.

Impact of Diverse Document-evaluation Measure-based Searching Methods in Big Data Search Accuracy (빅데이터 검색 정확도에 미치는 다양한 측정 방법 기반 검색 기법의 효과)

  • Kim, Ji young;Han, DaHyeon;Kim, Jongkwon
    • Journal of KIISE
    • /
    • v.44 no.5
    • /
    • pp.553-558
    • /
    • 2017
  • With the rapid growth of Big Data, research on extracting meaningful information is being pursued by both academia and industry. Especially, data characteristics derived from analysis, and researcher intention are key factors for search algorithms to obtain accurate output. Therefore, reflecting both data characteristics and researcher intention properly is the final goal of data analysis research. The data analyzed properly can help users to increase loyalty to the service provided by company, and to utilize information more effectively and efficiently. In this paper, we explore various methods of document-evaluation, so that we can improve the accuracy of searching article one of the most frequently searches used in real life. We also analyze the experiment result, and suggest the proper manners to use various methods.

On the Report Tendency of Mass Communication in Nuclear Accident and the Standpoint of Public Acceptance from a Intrinsic Point of View. (A Case Study of Quantitative Analysis in Connection with the Newspaper Report Especially in Korea.) (핵사고시 매스컴의 보도경향과 본질적 면에서 본 국민이해의 관점 (특히 한국신문 보도에 관련된 정량적인 분석의 사례를 중심으로))

  • Lee, Soo-Yong
    • Journal of Radiation Protection and Research
    • /
    • v.21 no.3
    • /
    • pp.217-253
    • /
    • 1996
  • Following after the Chernobyl accident. the response to the large scale nuclear accidents became a clear example to show how these accidents affect the public information that strongly depend on political, economical, and social factors. Futhermore, in present day although we live in the era of various information, as far as the problem of nuclear is concerned, the acceptance of the source of Information is always apt to limited. Therefore, in this investigations, as a case study, an attempt is to make the method of minimizing and a preparation to cope with the grope of countermeasure for psychologically unsettled and disordered problems that accepted from both of the unconfirmed and of the exaggerated circumstantial report of mass media as well as a clue to the probability under the condition of existence of major and minor nuclear accidents. In the present paper, it also intends to establish the terminology that covered all the part of nuclear field use in a writing guideline to the scientific column of nuclear accident as shown in the table. and several methodology in relation to the report tendency of mass communication in nuclear accident and the standpoint of public acceptance from a intrinsic point of view are discussed.

  • PDF

Targeting Data Service for Web-Based Media Contents (웹 기반 미디어 콘텐츠를 위한 맞춤형 데이터 서비스)

  • Park, Sung-Joo;Chung, Kwang-Sue
    • Journal of KIISE:Computing Practices and Letters
    • /
    • v.16 no.12
    • /
    • pp.1154-1164
    • /
    • 2010
  • As an useful application in broadcasting services, the targeting service has been mainly studied to improve the service satisfaction and user usage in various media service environments based on user profile, preferences, and usage history. Targeting service is expanding its domain from broadcasting contents to interstitial contents and from fixed TV devices to mobile devices. Service data also include advertisement data, coupon, and information about media contents as well as simple broadcasting data. In this paper, the targeting data service is designed and implemented on articles, advertisement and broadcasting information on the basis of the user information. To adapt this to web-based media contents, information on user profile, preferences, and usage history is newly defined on the basis of the user metadata developed in TV-Anytime Forum and the user information defined in OpenSocial. The targeting data service is implemented to generate user preferences information and usage history pattern based on the similarity among user preference, contents information, and usage history. Based on performance evaluation, we prove that the proposed targeting data service is effectively applicable to web-based media contents as well as broadcasting service.