• 제목/요약/키워드: Science History Program

검색결과 278건 처리시간 0.059초

자연사관 관람에서 중학생 소집단의 대화적 탐구에서 나타나는 상호작용 유형 (Interaction Patterns in Dialogic Inquiry of Middle School Students in Small Groups in the Natural History Gallery)

  • 정원영;이주연;박은지;김찬종;이선경
    • 한국지구과학회지
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    • 제30권7호
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    • pp.909-927
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    • 2009
  • 탐구는 과학교육의 본질을 설명해주는 결정적인 특징이다. 최근에는 스스로 문제를 제기하여 탐구하고 그것을 의사 소통하는 능력을 포함한 논증이 강조되고 있는데, 학교 탐구학습 맥락에서는 자율적이고 활발한 상호작용의 측면에서 그 한계가 지적되고 있다. 그래서 대안으로 비형식 맥락에서의 탐구학습이 제안되고 있으며, 이에 본 연구는 국립과천과학관 내 자연사관을 자유 관람하는 중학생 소집단의 대화적 탐구에서 나타나는 상호작용 유형을 밝히고자 하였다. 이를 위해 중학생 13그룹의 탐구적 대화 42사례를 대상으로 탐구요소 및 상호작용 유형을 분석하였다. 탐구요소는 문제제기, 자료수집, 설명의 세 가지로 구분하였고, 상호작용은 대화의 흐름을 화살표로 도식화하여 나타내었다. 문제제기로부터 탐구가 시작된다고 보았으며, 문제제기 이후 후속적인 반응에 따라 유형이 구분되었는데, 총 7가지 유형이 발견되었다. 그 유형은 문제제기 공유, 문제제기-단순응답, 문제제기-단순설명, 문제제기-단순설명-(자료수집)-자료기반 설명, 문제제기-자료수집-자료기반 설명의 5가지로 크게 나누어지고, 가장 많은 빈도를 보인 유형 2는 다시 소극 회피적 응답, 부정확한 응답, 패턴의 반복으로 세분화되었다. 본 연구는 비형식 탐구학습에서 학교 탐구학습과 차별화되는 상호작용 패턴을 파악하였다는 점에서 기존 연구들과 차별성을 가지며, 비형식 탐구학습에서 상호작용 유형을 기술하고 있다는 점에서 비형식 탐구학습 연구를 위한 기초를 제공하였다는 의의를 가진다.

청소년의 월경곤란증과 영향 요인 (Factors Affecting Dysmenorrhea among Adolescents)

  • 정향미;김이순
    • Child Health Nursing Research
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    • 제10권2호
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    • pp.196-204
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    • 2004
  • Purpose: This research was to determine the characteristics of dysmenorrhea among girls, identify the factors affecting dysmenorrhea. Method: The study subjects were 1653 high school student in Busan Metropolitan city. The data were collected by a self-administered questionnaire between November 1 and November 30, 2002. Descriptive statistics, t-test, one-way ANOVA with Scheffe' test, and stepwise multiple regression analysis in SPSS program were used for data analysis. Result: Students suffering from slight dysmenorrhea made up the majority 52.9%, whereas those with serious cases represented 29.8%. Regarding the measures taken to cope with dysmenorrhea, most of the respondents took analgesics 52.8%. A high points of dysmenorrhea was associated with irregular meal habits(p<0.01), unbalanced diet(p<0.05), stress(p<0.01), and health awareness(p<0.01), first menstruation before they reached 13 (p<0.01), heavy bleeding(p<0.01), family history(p<0.01). Factors affecting the dysmennorrhea of the respondents included the extent of bleeding, family history, health awareness, age during the first menstruation, and degree of stress, accounting for 13.1% of the total variance. Conclusion: To manage dysmenorrhea among girls, the results of the research indicate that students need to have proper awareness of health and manage stress through health education. Likewise, they need to be given positive follow-up management through a holistic nursing approach.

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Star formation history in the bubble nebula NGC 7635

  • 임범두;성환경
    • 천문학회보
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    • 제37권1호
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    • pp.79.1-79.1
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    • 2012
  • We present here $UBVI$ and H${\alpha}$ photometric results of stellar sources in the bubble nebula NGC 7635. The early type members are selected from the photometric membership criteria. H${\alpha}$ photometry allows us to detect 11 pre-main sequence candidates with H${\alpha}$emission. In addition, we performed PSF photometry for the Spitzer IRAC and MIPS 24${\mu}m$ images from archive (program ID 20726, PI: J. Hester) in order to search for the young stellar objects (YSOs). Total 19 sources are classified as YSOs (7 class I, 11 class II, and 1 transitional disk candidates) in the color-color diagrams according to the classification scheme of Gutermuth et al.. Among them, 7 YSOs have counterparts in optical photometric data. These stars can be divided into two groups at given color indices. It implies that there occurred the star formation events more than twice. We would like to discuss the star formation history in the bubble nebula using the results from SED fitter (Robitaille et al.), color composite image from IRAC bands, and spatial distribution of early type stars and YSOs.

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Central diabetic insipidus associated with suspected pituitary gland tumor in a dog

  • Lee, Kyo-Im;Park, Hee-Myung
    • 대한수의학회지
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    • 제51권4호
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    • pp.319-323
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    • 2011
  • A 12-year-old spayed female Yorkshire terrier dog was presented with two-weeks history of lethargy, mental dullness and polydipsia. Neurologic examination revealed proprioceptive defect of all limbs and loss of swallowing gag reflex. The dog revealed persistent dehydration, hypernatremia, hyperosmolarity and hyposthenuria. On magnetic resornance imaging (MRI), the mass were heterogeneous signality on T1 weighted images, hyperintense signality on T2 weighted image with contrast enhancement on hypothalamohypophyseal lesion. Based on these findings, the dog was suspected as having pituitary gland tumor. Through water deprivation test and response to desmopressin acetate (1-deamino-8-D-arginine, DDAVP), this case was diagnosed by central diabetes insipidus (CDI). This paper reports the clinical sign, MRI, response to the exogenous antidiuretic hormone of CDI due to suspected pituitary tumor in a dog and DDAVP administration was evaluated effective therapy to correct hypernatremia induced by CDI.

탄소배출권 거래제도에 따른 기업의 에너지·환경 사회공헌 프로그램 도출 방법론 (Development of the Social Responsibility Program (Aspect of Energy & Environmenrs) under CO2 Emission Trading Systems)

  • 안중우
    • 한국수소및신에너지학회논문집
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    • 제26권5호
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    • pp.453-462
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    • 2015
  • In this study, a methodology is investigated for the development of social responsibility program employed by major domestic companies under social pressure. It is true, however, that its infancy in history and lack of experience makes it difficult to run novel programs for the companies on their own and it naturally leads to copying and/or slight modification of what others do. Utilizing widely accepted SWOT analysis, stakeholders analysis and PDCA Cycle, a methodology for the successful programs with sustainability is proposed by reflecting business nature and strategic direction. Three real cases are analyzed. In addition, relationship and position with social welfare organizations is elucidated.

관람 대화의 흐름과 상호작용의 양상에 기반한 자연사 전시관의 전시물과 관람객 간 상호작용적 학습 사례 연구 (A Case Study for Interactive Learning between Visitors and Exhibits in a Natural History Hall Focused on the Discourse Flow and the Modes of Visitors' Own Interactions)

  • 최문영;맹승호;박은지;정원영;김찬종
    • 한국과학교육학회지
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    • 제32권7호
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    • pp.1251-1268
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    • 2012
  • 이 연구는 자연사 전시관에서 중학생들의 또래간 자유 관람 시 형성되는 전시물을 매개로 한 상호작용적 학습 과정의 사례를 조사하였다. 연구 자료로 관람객들의 상호작용이 활발했던 5건의 관람 사례를 선정하였다. 각 관람 사례에서 대화의 흐름에 근거한 관람객의 의미 구성 과정 및 전시물의 특성에 따른 관람 대화의 특징을 이해하기 위하여 관람 대화의 레지스터 분석 및 상호작용 양상 분석을 수행하였다. 연구결과는 다음과 같다. 전시물이 제공하는 정보는 관람객의 대화에 주제부로 반영되고, 관람객들은 주제부에 대한 정보를 설명부에 제시하여 서로 교환함으로써 전시물에 대한 주체적인 의미를 구성하였다. 한편, 전시 패널에 의문형의 문장을 사용하여 관람객의 논증을 유도하거나, 유사한 전시물들이 함께 제시되어 관람객에게 전시물 간의 비교를 유발하는 방식으로 관람객들의 의미 형성을 촉진하였다. 전시물을 매개로 한 관람객 간의 상호작용 양상의 특징을 보면, 관람객들의 의미 구성 과정에서 전시물에 대한 관람객의 의견뿐만 아니라 전시물이 가진 '정보' 자체도 의미를 구성하기 위한 심층인지적인 사회적 상호작용의 요소로 빈번하게 사용되어 관람 대화에서 정보의 구조가 상호작용 양상에 중요함을 알 수 있었다. 연구결과를 바탕으로 자연사 전시관에서 관람객의 협력적인 과학 학습을 발전시키기 위해서 관람객들이 전시물의 정보를 선택하여 관람 담화로 구성하는 양상을 자세히 이해하는 것이 중요함을 논의하였다.

Growth Performance of Exotic Trees in Korea

  • Lee, Hyunseok;Lim, Hyemin;Kang, Jun-Won
    • Journal of Forest and Environmental Science
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    • 제35권2호
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    • pp.115-120
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    • 2019
  • There are many countries having a long history of exotic tree introduction from different countries and several countries including New Zealand, Brazil and Hungary have successfully introduced exotic trees. Korea's tree breeding program for introduction of exotic tree was originally started from 1924. Records reveal that hundreds of tree species were introduced from many countries and tested their germination and viability. About 415 introductions were eliminated since they had been introduced and tested. Subsequently, seven exotic trees that proved successful in trials and plantations have planted for afforestation. Simultaneously, several promising exotic trees are still under the test. In this paper, we will succinctly review and evaluate their comparative growth performance of the exotic trees in the plantation programs of the country to coping with climate change.

Challenges in nuclear energy adoption: Why nuclear energy newcomer countries put nuclear power programs on hold?

  • Philseo Kim;Hanna Yasmine;Man-Sung Yim;Sunil S. Chirayath
    • Nuclear Engineering and Technology
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    • 제56권4호
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    • pp.1234-1243
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    • 2024
  • The pressing need to mitigate greenhouse gas emissions has stimulated a renewed interest in nuclear energy worldwide. However, while numerous countries have shown interest in nuclear power over the course of history, many of them have not continued their pursuit and chosen to defer or abandon their peaceful nuclear power projects. Scrapping a national nuclear power program after making initial efforts implies significant challenges in such a course or a waste of national resources. Therefore, this study aims to identify the crucial factors that influence a country's decision to terminate or hold off its peaceful nuclear power programs. Our empirical analyses demonstrate that major nuclear accidents and leadership changes are significant factors that lead countries to terminate or defer their nuclear power programs. Additionally, we highlight that domestic politics (democracy), lack of military alliance with major nuclear suppliers, low electricity demand, and national energy security environments (energy import, crude oil price) can hamper a country's possibility of regaining interest in a nuclear power program after it has been scrapped, suspended, or deferred. The findings of this study have significant implications for policymakers and stakeholders in the energy sector as they strive to balance the competing demands of energy security, and environmental sustainability.

국유림(國有林) 관리(管理) 영림계획(營林計劃) 운영(運營)을 위(爲)한 데이터베이스 프로그램의 개발(開發) (Development of a Database Program for Management Planning in National Forests)

  • 박은식;정주상
    • 한국산림과학회지
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    • 제88권1호
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    • pp.63-72
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    • 1999
  • 이 연구에서는 산림계획에 관계되는 자료관리는 물론 국유림에 적용되는 영림계획의 운영을 관계형 데이터베이스체계로 개발하였다. 이 데이터베이스체계에서는 영림계획 업무에서 요구되는 여러 가지 기능들을 메뉴체계에 반영하였으며, 산림조사, 영림계획, 연차계획 및 임반연혁 자료들을 유기적으로 관리할 수 있도록 하였다. 이 모델은 한글 윈도우 95 환경에서 구동하도록 설계되어 있으며 프로그램은 Visual Basic 5.0을 사용하여 작성하였고 데이터베이스 기본 엔진으로 Microsoft사의 ACCESS를 이용하였다. 이 논문에서는 영림계획업무 내용을 분석하고, 이를 토대로 작성된 관계형 데이터베이스 설계내역, 모델구조 및 응용체계를 설명하였다. 그리고 이상에서 설명한 데이터베이스의 응용체계를 실제 화면모드 출력창을 이용하여 제시하였다.

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4년제 정규과정과 RN-BSN과정 간호학생의 간호관 비교 (Comparing Nursing Perspective Between BSN and RN-BSN Program Student)

  • 백승남;조결자
    • 간호행정학회지
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    • 제10권4호
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    • pp.417-425
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    • 2004
  • This descriptive survey design study was aimed to investigate nursing students' perspectives of nursing care. One hundred seventeen junior or senior students in BSN program and 131 junior or senior students in RN-BSN program at K University were compared and contrasted in terms of their perspectives on nursing care. Using the instrument developed by Cho Kyoul-Ja and Song Mi-Ryung(1997), the data were collected from April 1st to April 30th in 2003. The findings of the research are as follows. 1. The average perspective score of the RN-BSN students was higher than that of the BSN students. 2. The RN-BSN students reported higher scores than those of the BSN students in perspectives on personal qualification and meanings, and perspectives on scope and function of their nursing care. However, there was no significant difference between the groups in overall nature and domains of nursing care. 3. In terms of the participants' demographic backgrounds such as, grades in the program, religion, history of hospitalization, there was no significant difference between the BSN and RN-BSN groups. 4. No significant difference was found within the RN-BSN group in terms of their nursing perspectives associated with the years of clinical experience. In conclusion, the score of nursing perspectives in RN-BSN student group was higher than that of the BSN students. No other differences were found in this study. The higher nursing perspective score in RN-BSN group is attributed to their clinical experience. Thus, it is suggested that philosophy and value of nursing should be taught early in nursing program in order for nursing students to obtain proper points of views on nursing care. In addition, nursing philosophy, holistic view, and humanistic values should be stressed in continuing education for clinical nurses in order for them to maintain dignitary perspectives in nursing care.

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