• 한국문헌정보학회지
• /
• 제32권2호
• /
• pp.5-34
• /
• 1998

본 연구의 목적은 오늘날 한국음악에 관한 각종 다양한 자료를 융통성있게 수용하면서 학문적 전문지식에 근거한 보편성을 갖는 한국음악분류표를 제시하고자 하는 것이다. 이를 위하여 이론적배경으로서 한국 음악 및 한국음악학의 체계와 각종 음악자료의 유형을 살펴보고, KDC의 한국음악 분야를 비롯 현재 도서관 및 각종 관련기관에서 사용되고 있는 한국음악 관련 분류표들을 분석하여 조사 분석된 분류전개에서 이론적 배경을 근거로 문제점을 찾아 이를 기초로 각종 한국음악 관련 문헌들을 참고로 하여 새로운 한국음악 분야의 분류표를 전개하였다.

• 한국군사과학기술학회지
• /
• 제11권2호
• /
• pp.43-52
• /
• 2008

The galvanic corrosion of a vessel, or systems fitted to minimize the ship's corrosion such as ICCP (Impressed Current Cathodic Protection) system and sacrificial anodes, can lead to significant electrical current flow in the sea. The presence of vessel's current sources associated with corrosion will give rise to detectable electric field surrounding the vessel and can put it at risk from mine threats. For this reason, it is necessary to design corrosion protection systems so that they don't only prevent a hull corrosion but also minimize the electric field signature. In this paper, we describe theoretical backgrounds of underwater electric field signature due to corrosion and corrosion protection system on naval vessels and analysis results of the electric field according to the ship's hull and it's propeller coating damage and ICCP anode displacement.

• 한국지역사회생활과학회지
• /
• 제24권3호
• /
• pp.355-368
• /
• 2013

This research was performed for examining the differences of experience of sex education and the awareness of sexual abuse according to child's sex and economic background. Also the differences of sex knowledge and sexual consciousness were analyzed according to child's sex, economic background and sex education. Subjects were 425 children from two elementary schools and 10 community child centers in H city, Gyeonggi-do. The results were as follows. First, more girls thought the desirable place for sex education was home and more girls consulted sexual problems with their parents. Children from low economic backgrounds experienced sex education at school and community child centers rather than at home. Second, both boys and girls replied that sexual abuse was due to the attacker's fault but more girls than boys attributed the fault to themselves. Third, girls' sex knowledge grade was higher than boys. Fourth, boys showed a more open attitude toward heterosexual dating, and children with a low economic background showed a higher sex drive. Fifth, a high sex drive was related to low sexual knowledge, openness in dating and high sexual ethics.

• 한국도서관정보학회지
• /
• 제32권3호
• /
• pp.1-29
• /
• 2001

이 연구는 비영리조직이용자 불평행동의 한 예로서 공공도서관 이용자의 불평행동에 대한 포괄적인 연구로 시도된 것이다. 이 연구에서는 불평에 대한 태도와 불평비용, 불평의 성공가능성, 서비스의 중요성, 외적귀인, 충성도 등의 불평행동의 선행요인이 이용중단, 항의, 부정적 구전, 제3자를 통한 불평 등의 각 불평행동 유형에 미치는 영향을 실증적으로 분석하였다. 특히 비영리조직의 특성과 관련하여 선행요인으로 "무료이용지각"이라는 새로운 변수를 검토하였다. 서비스에 불만족한 대구지역 공공도서관의 성인이용자 515명을 대상으로 한 설문조사를 바탕으로 결과를 분석하였다.

• Molecules and Cells
• /
• 제42권5호
• /
• pp.426-439
• /
• 2019

Many small RNAs (sRNAs) regulate gene expression by base pairing to their target messenger RNAs (mRNAs) with the help of Hfq in Escherichia coli. The sRNA DsrA activates translation of the rpoS mRNA in an Hfq-dependent manner, but this activation ability was found to partially bypass Hfq when DsrA is overproduced. The precise mechanism by which DsrA bypasses Hfq is unknown. In this study, we constructed strains lacking all three rpoS-activating sRNAs (i.e., ArcZ, DsrA, and RprA) in $hfq^+$ and $Hfq^-$ backgrounds, and then artificially regulated the cellular DsrA concentration in these strains by controlling its ectopic expression. We then examined how the expression level of rpoS was altered by a change in the concentration of DsrA. We found that the translation and stability of the rpoS mRNA are both enhanced by physiological concentrations of DsrA regardless of Hfq, but that depletion of Hfq causes a rapid degradation of DsrA and thereby decreases rpoS mRNA stability. These results suggest that the observed Hfq dependency of DsrA-mediated rpoS activation mainly results from the destabilization of DsrA in the absence of Hfq, and that DsrA itself contributes to the translational activation and stability of the rpoS mRNA in an Hfq-independent manner.

• 영재교육연구
• /
• 제12권4호
• /
• pp.1-25
• /
• 2002

본 연구는 과학영재교육센터에 선발된 학생들의 가정 환경, 지적 선호, 장래 희망, 지적 과외 활동 등으로 구성된 지적 능력의 배경을 조사하고, 지적능력에 대한 수용 태도와 그 태도를 나타내는 요인을 탐색하기 위하여 과학영재 학생들을 대상으로 설문조사와 분석을 하였다. 본 연구 결과 초등학교 과학영재 학생의 가정은 대체로 경제적으로 교육을 시키는데 어려움이 없었으며, 지적으로는 높은 수준의 환경을 갖고 있었다. 과학영재 학생이 순수과학자가 되기를 희망하는 경우 이들은 과학과목을 좋아하고, 과학 책을 즐겨 읽으며 남학생일 경우가 많았다. 지적 능력에 대한 과학영재 학생들의 수용 태도는 대체로 지능에 대한 자신감은 크지 않았지만 학습을 통하여 지식이 많아지면 지능과 능력이 향상될 것으로 생각하고 있었다. 이러한 태도의 요인으로 자기의 지능에 대한 다른 사람의 높은 기대, 과제 해결에 대한 자신감과 여유, 학습에 의해 지능과 능력이 향상될 것으로 기대, 지능에 대한 자신감과 상황 참여에의 적극성 등 4가지 요인을 정의하였다.

• 한국농공학회논문집
• /
• 제63권1호
• /
• pp.1-9
• /
• 2021

Number of duck and its breeding facilities have been steadily decreasing for financial and social issues in Korea. Therefore, the 'turning point' for duck industry is strongly demanded. In this study, the questionary survey was carried out to provide backgrounds for developing policy and technology for duck breeding farms. The questionary survey aimed to investigate the information of operation strategy of farm, ventilation, cooling and heating. The total number of survey respondents was 74. In case of facility type, 55.4% of respondents stated they used greenhouse type, 31.3% for winch-curtain type, and 2.7% for windowless type (mechanically ventilated facility). More than 85% of the facilities were using 'natural ventilation', it meant that these situation can restrict the not only environmental control but also the supply policy for 'smart farm' of the Government. 44.6% used the combination of the cross-ventilation method and roof-ventilation method for ventilation operation in summer season, and 31.1% followed only the cross-ventilation method. In case of winter season, 36.5% used the cross-ventilation method, and 33.3% used the combination of cross and roof-ventilation, method. For the ventilation strategy, about 86.5% depended on farmer's experience. In case of heating and cooling, 79.7% were using kerosene heater for winter season, and 43.2% were using mist-spray for summer season, respectively. More than 75% stated that cooling and heating strategies were based on farmer's experience. From the analyses of the survey results, a few proposals for developing policy and technology for duck breeding farm was suggested.

• 천문학논총
• /
• 제26권3호
• /
• pp.103-114
• /
• 2011

We have carried out a follow-up study on the students who have participated or are going to participate in either the International Astronomy Olympiad (IAO), the Asia Pacific Astronomy Olympiad (APAO) or the International Olympiad on Astronomy and Astrophysics (IOAA) from 2002 to 2011. The survey questionnaires returned from ten high school students including five who are to participate in 2011 as well as fourteen college students have been analyzed in various aspects of their backgrounds and personal characteristics. In family life, their parents tend to have high educational background along with high expectations for their children. In regard to the academic environment, most students express a general satisfaction in school life, including their relationship with teachers and classmates. In personal characteristics, they describe themselves as inquisitive, perseverant, competitive, creative, self-motivated and goal-oriented, in addition to many other traits. Most students have a strong interest in astronomy which usually begins in middle schools through exposure to astronomy books. On top of it, the astronomy olympiad has provided them with an opportunity to strengthen their self-esteem, problem-solving ability and conviction about scientific careers. Accordingly, the experience in astronomy olympiad has led a considerable number of students to continuously studying in astronomy related fields or otherwise in other science and engineering areas. In conclusion, the astronomy olympiad plays such an important role that it can make a significant contribution to astronomy as well as science in general by having positive impact on the potential career path of its participants.

• 한국임상약학회지
• /
• 제29권4호
• /
• pp.267-277
• /
• 2019

Backgrounds: With the globalization of drug development, multi-regional clinical trials (MRCTs) have emerged to facilitate rapid availability of medicines to patients worldwide. The present study aimed to has explored attitudes and perceptions towards adopting the Korean MRCT guideline. Methods: An online survey, consisting of 16 questions, classified into two subjects, was administered to stakeholders in Korea. Most quantitative components were measured using the Likert scales. A content analysis of the qualitative components was carried out to identify the keywords in open-ended responses. Results: A total of 94 survey responses were analyzed: 51 participants from pharmaceutical companies, 11 from clinical research organizations, and 21 from clinical trial centers. The content of the guideline was rated as appropriate for clarity, acceptability, and applicability (96.8, 96.8, and 93.6%, respectively). The local environmental impact of the systemic/political, academic/technical, and industrial/economical aspects of the guideline was rated as appropriate at 95.7, 97.9, and 91.5%, respectively. The suggested adoption period was 1~2 years (40, 42.6%). The concept and individuals' domestic circumstances were the key problems affecting the clarity, applicability, and local environmental impact of the guideline. Conclusion: The Korean MRCT guideline was well-developed. Their overall impact on the local environmental impact of MRCTs in Korea was expected to be beneficial, but methods are needed to minimize the negative impacts. The findings of this study can inform the priorities for the future adoption of the guideline in Korea.

• 한국과학교육학회지
• /
• 제26권4호
• /
• pp.546-558
• /
• 2006

본 연구의 목적은 지구환경적 문제를 해결하는 과정 중에 귀추법이 어떻게 활용되는가를 발견법적으로 확인하기 위한 것이었다. 현직 지구과학 교사, 사범대학의 예비 과학 교사, 그리고 고등학교 학생 등 서로 다른 배경을 지닌 참여자들이 총 32개 조를 이루어 끝이 열린 형태의 지구환경적 문제를 해결하였고, 그 과정에서 자신들의 추론 과정이 기록된 텍스트를 산출하였다. 이 텍스트에 포함된 추론 과정을 귀추법의 삼단논법적 형식에 따라 정리하고 귀추적 추론에서 사용된 사고 전략들을 반복적으로 분석하였다. 그 결과, 추론자들이 지구환경적 문제 해결 상황에서 귀추법을 사용하였으며, 그들은 다양한 사고 전략들을 활용하여 귀추적 결론을 낳게 하는 규칙을 추리해 내었음을 알 수 있었다. 이 전략들은 자료의 재구성, 연쇄적 귀추, 특이 정보의 채택, 모델 구성 및 조작, 인과적 결합, 제거, 사례 기반의 유추, 그리고 존재에 관한 전략 등이었다. 결론적으로, 학생들의 사고 능력을 증진시키고 지구과학과 지구환경적 문제 해결 과정의 특징에 대한 학생들의 이해를 함양하기 위하여 귀추적 추론 과제가 이용될 수 있다는 것을 시사 받을 수 있었다.