• 제목/요약/키워드: Scientific data

검색결과 2,627건 처리시간 0.028초

해사관계 연구자의 문헌정보 이용에 관한 구조분석 (Structural Analysis of Scientific Information Usage)

  • 이철영
    • 한국항해학회지
    • /
    • 제4권2호
    • /
    • pp.7-38
    • /
    • 1980
  • Nowadays researchers attach a great importance to the problems concerned with scientific information in the field of science and engineering. There are some reasons for it, that is, ⅰ) the amount of scientific information increases in proportion to the activities of scientists and engineers, so it is difficult to pick up a real valuable information ⅱ) it becomes more important to use a variety of information in proportion to the spread ofthe branch of science ⅲ) since the medium of scientific information is mostly technical papers, it is very difficult to mechanically transact these papers and to keep all documents and scientific informations for a long time. To cope with these difficult situations, many technical skills have been developed, for example, data-base, automatic information retrieval, micro-film and so on. But there are comparatively few investigation on the matter how the researchers who are users and producers think about the systematization of scientific information usage, so this paper investigates the thought and information needs of researchers, and proposes a basis of a method for systematization of scientific information usage. The author inspects the actual conditions of scientific information, reconsider the method which has been used and investigates the matter of how researchers whose interest is closely related to the study of marine affairs think about problems of scientific information usage by thequestionarie of Fuzzy-DEMATEL method. Also, FSM which is method for structuring hierarchy for the several complex problems on the basis of fuzzy sets theory is adopted as a tool of analysis. We can understand the key problems and make a story to solve the systematization of scientific information usage from the results of the analysis and those results will be directly applicable to construct a new system for scientific information usage.

  • PDF

열과 온도 수업에서 나타난 초등학생들의 중간 언어 분석 (Analysis of Elementary Students' Interlanguage in Science Class about Heat and Temperature)

  • 이일연;장신호
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제34권1호
    • /
    • pp.123-130
    • /
    • 2015
  • For effective science learning, teachers need to rearrange scientific language so that students can understand the contents with their incomplete language resources. Interlanguage is the interplay between everyday language and scientific language. The purpose of the study was to analyze the patterns of interlanguage during 4th grade science class to learn "Heat and Temperature" and to find the features of meaning sharing inside classroom in which a teacher and students participated. The data analysis shows that elementary students' interlanguage has different features compared to scientific language that involves passive voice and content-specialized nouns. Students' interlanguage implied the quality of class community's knowledge-sharing, according to the degree of how students can connect scientific language and everyday language in more effective ways. The implication to elementary science education was discussed.

초등학교 과학 수업에서 활용할 수 있는 과학 탐구 능력 수행 평가 자료 개발 (Developing Performance Assessment Materials on Scientific Inquiry Skills for Elementary School Students)

  • 채동현;손연아;맹희주
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제26권3호
    • /
    • pp.341-358
    • /
    • 2007
  • The purpose of this study was to develop performance assessment materials of scientific inquiry skills on sixty scientific activities in elementary science textbook for fifth and sixth grades. For this study, a total of 500 elementary teachers were sampled and surveys were carried out to examine the status of performance assessment of scientific inquiry skills in school. The classification system of assessment methods by Hart(1994) was also analyzed to create' assessment strategy of scientific inquiry skills' for elementary school students. Based on the quantitative data analysis and literature study, performance assessment materials were developed and applied to science classes for fifth and sixth grades. Teachers and students were interviewed after the classes for asking about merits and improvements and the performance assessment materials were revised. This study can provide elementary school teachers with reliable sources for performance assessment of scientific inquiry skills utilized in their science classes.

  • PDF

'학교로 가는 생활과학교실' 프로그램이 참여자의 과학적 태도, 흥미도, 만족도에 미치는 영향 (The Effects of 'Hands-on Science Class at School' Program on Participants' Scientific Attitudes, Interest and Satisfaction)

  • 김은주;장신호
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제28권4호
    • /
    • pp.495-506
    • /
    • 2009
  • The purposes of the study were to examine the effect of 'Hands-on Science Class at School' program on students' scientific attitude and interest, and to investigate the satisfaction differences by students, lecturers, and local operating organizations respectively. For this study, 1,054 students from 1st to 6th grade participated in the national-wide survey, while they engaged in the program activities during 3 months. 496 students participated in scientific attitude test and 558 students answered to scientific interest test. For the program satisfaction survey, 689 out of 1,054 students, 363 lecturers and 55 local operating organizations also participated. The data show that 'Hands-on Science Class at School' program gave positive influences on students' scientific attitude improvement. The program also had considerable effects on increasing students' interest toward science as well. The satisfaction survey results showed that students' satisfaction with the program was significantly higher than lecturers'. The educational implications are discussed.

  • PDF

Exploring Korean Pre-service Elementary Teachers' Scientific Inquiry Using the Science Writing Heuristic Template

  • Shin, Myeong-Kyeong
    • 한국지구과학회지
    • /
    • 제33권5호
    • /
    • pp.459-466
    • /
    • 2012
  • This study aimed to investigate the characteristics of pre-service elementary teachers' understanding about scientific inquiry in terms of designing exploration and reasoning that is used to formulate explanations based on evidence. The research context was an open inquiry with using the Science Writing Heuristic (SWH) template in which participant students were not provided with inquiry questions. As data, lab. 39 pre-service elementary teachers participated in this study while taking their science methods course. Analyses of the reports were framed by the cognitive processes of inquiry (Chinn and Malhotra, 2002) and each report was coded and analyzed by the framework of inquiry (Tytler and Peterson, 2004). Results showed that groups' works that utilized the SWH template encouraged the participants to interact each other about scientific inquiry. They came up with more relevant and testable questions for their scientific inquiry. It implicates that children will be able to have chances of testing their own questions more properly by using the SWH template in science classes just as the participants did in this study. The use of the SWH template would help pre-service teachers to teach appropriately how to test inquiry questions to their students in the future. Discussion was made to figure out the characteristics or Korean pre-service elementary teachers' understanding about scientific inquiry.

초등과학영재학생의 자기주도성과 과학창의성의 관계 (The Relationship between Self-Directedness and Scientific Creativity of Science-Gifted Elementary Students)

  • 김민주;임채성
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제36권4호
    • /
    • pp.379-393
    • /
    • 2017
  • This study analyzed the relationship between self-directedness of science-gifted elementary students and their expression of scientific creativity in science-gifted class. A science-gifted program on the topic of Hydraulic Machine was implemented to 34 fifth-graders in the Science-Gifted Education Center of an education office in Seoul, Korea for four weeks. The self-directedness of the gifted students was divided into three types of 'General, Scientific, and Topic-Related Self-Directedness'. The products of the students' activities were assessed by using a scientific creativity assessment formula. Qualitative research, such as analysis of observations and interviews, was also conducted in order to identify characteristics that were not apparently revealed by quantitative data. The main results of this study are as follows: First, science-gifted elementary students' general self-directedness and their scientific creativity were significantly correlated (r=.373). Second, the students' scientific self-directedness and scientific creativity did not have a significant correlation (r=.294). Third, there was a positive correlation between the students' topic-related self-directedness and their expression of scientific creativity. Their self-rated scores (r=.420) for the topic-related self-directedness and the number of activity types associated with the topic had a positive correlation (r=.350). Fourth, the students were categorized into four groups according to the levels of their self-directedness and scientific creativity, and the result showed that Type HH (high self-directedness and high scientific creativity) was the most common type (15 students, 38.5%), followed by Type LL (low self-directedness and low scientific creativity) (11 students, 28.2%). Eight (20.5%) and five students (12.8 %) belonged to Type LH (low self-directedness and high scientific creativity) and Type HL (high self-directedness and low scientific creativity) respectively. Fifth, the classroom observation of the students in groups revealed that groups with more number of Type HH demonstrated better cooperation and performance. Sixth, the analysis results of the observation were almost matched to the results of the self-directedness and scientific creativity tests. The students with higher self-directedness demonstrated active class participation and good cooperative skills. The students with higher scientific creativity had a tendency to generate creative ideas more frequently in given situations. Seventh, dynamic activities were perceived as enjoyable and exciting by 76.9% of the students, but static activities that require creativity were regarded as interesting only by 23.1% of the students. Among the students who were satisfied with both the creative and static activities, Type HH accounted for the largest proportion (55.6%). In conclusion, factors such as students' interests, initiatives, and attitudes displayed through voluntary participations originated from their own daily life can predict the degree of scientific creativity associated with the topic. Also, when students were categorized into four types according to the level of self-directedness and scientific creativity, there was a tendency of active behavior in class, cooperative skill, and activity satisfaction. This suggested that we should consider self-directedness and scientific creativity in selecting the gifted, grouping them in class, and designing and executing programs for science-gifted elementary students.

Clinical statistics: five key statistical concepts for clinicians

  • Choi, Yong-Geun
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제39권5호
    • /
    • pp.203-206
    • /
    • 2013
  • Statistics is the science of data. As the foundation of scientific knowledge, data refers to evidentiary facts from the nature of reality by human action, observation, or experiment. Clinicians should be aware of the conditions of good data to support the validity of clinical modalities in reading scientific articles, one of the resources to revise or update their clinical knowledge and skills. The cause-effect link between clinical modality and outcome is ascertained as pattern statistic. The uniformity of nature guarantees the recurrence of data as the basic scientific evidence. Variation statistics are examined for patterns of recurrence. This provides information on the probability of recurrence of the cause-effect phenomenon. Multiple causal factors of natural phenomenon need a counterproof of absence in terms of the control group. A pattern of relation between a causal factor and an effect becomes recognizable, and thus, should be estimated as relation statistic. The type and meaning of each relation statistic should be well-understood. A study regarding a sample from the population of wide variations require clinicians to be aware of error statistics due to random chance. Incomplete human sense, coarse measurement instrument, and preconceived idea as a hypothesis that tends to bias the research, which gives rise to the necessity of keen critical independent mind with regard to the reported data.

Analysis of Library Website Users' Behavior to Optimize Virtual Information and Library Services

  • Shevchenko, Lyudmila
    • Journal of Information Science Theory and Practice
    • /
    • 제8권1호
    • /
    • pp.45-55
    • /
    • 2020
  • The purpose of this work was to study library website users' actions by tracking their behavior, determining popular content, and identifying browsing patterns and subsequent improvement of access to popular content. The study of behavior models and the use of web analytics has led to the emergence of solutions that improve the usability and functionality of the State Public Scientific-Technological Library of the Siberian Branch of the Russian Academy of Sciences (SPSTL SB RAS) website. These are: identifying user tasks as they are developed, conducting user testing to better understand the event. tracking data and collecting additional data to verify the effectiveness of the changes made. Examining data on the duration of the session and the number of visits will help determine the goals of user visits and develop new recommendations. Usability analysis and testing will make it possible to compare the data obtained using web analytics and the perception of the library site by the users themselves. Recommendations are offered to libraries on the use of data on the real behavior of the target audience of the library website to improve access to library resources and services, increase their relevance and improve information services.

국내 포탈사이트 과학 기사 분야와 과학적 소양 내용 요소 분석 (An Analysis of Fields and Scientific Literacy Content Elements of Scientific Reports in a Popular Portal Site in Korea)

  • 이명제
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제34권3호
    • /
    • pp.338-345
    • /
    • 2015
  • The purpose of this study is to analyze science fields and content elements of the science reports in a web portal site of Republic of Korea in view of scientific literacy. The main results of the analysis on the 679 reports sampled in a year are as follows. First, 506 reports in 46 fields were identified. Reports about technology and earth science occupies 16% respectively, and life science occupies 13%, medical science 4%, chemistry, company, others 3% and physics 1%. Almost reports show technology as associate field. Second, the frequency rate of reports including scientific literacy content elements is 52%. Reports related to 'physics' and 'chemistry' as dominant fields show relatively high rate in scientific literacy elements. The element, 'social context' is included in about 96% of the reports. Both 'data and statistics' and 'application' show relatively low rate and large gaps according to dominant fields. A few concluding remarks and proposals follow from these results. First, as almost science reports show the nature of integrated science, scientific literacy acquisition through science reports in internet requires the integrated scientific view. Especially most science reports includes the contents related to technology or medical science, so the point of view in the science-technological literacy is required. Second, the scientific literacy content elements in reports show various rates according to dominant fields. Therefore, science reports need to complement the deficient content elements to carry out the role of science reports as scientific literacy sources.