• 한국초등과학교육학회지:초등과학교육
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• 제42권3호
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• pp.409-420
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• 2023

이 연구는 초등과학 수업의 정리단계에서 창의적 과학연극을 사용하는 과학 수업이 초등학생들의 학업성취도와 과학에 대한 태도에 미치는 효과를 알아보기 위한 것이다. 이 연구에서 활용한 창의적인 과학연극은 수업의 정리활동으로서 교사가 학습주제에 대한 기본 대본을 제공한 후 나머지 이야기를 학생들이 배운 내용을 활용하여 대본을 완성하도록 하는 것이다. 이는 윤혜경(2016)의 연구에 기초하여 창의적인 과학연극 수업을 고안하였고, 이 연구의 과학수업 내용은 3학년 1학기의 자석의 이용, 지구의 모습단원을 중심으로 지도하였다. 이를 위해 경기도 G시에 있는 H초등학교에서 3학년 학생들을 대상으로 실시하였다. 이에 대한 결과는 다음과 같다. 첫째, 과학연극을 통한 과학학업성취도에서는 실험반에서 향상되었고 이는 통계적으로 유의한 차이가 있음을 알았다. 그러나, 과학에 대한 태도는 ANCOVA 분석결과 통계적으로 유의한 차이가 나지 않았다. 둘째, 과학연극에 대한 인식의 변화에서는 통계적으로 유의한 차이가 나타나지 않았다. 과학연극을 적용한 실험반 학생들 면담 결과, 과학연극 대사를 작성하는 것이 어렵다는 의견과 모둠활동에서 의견을 조율하고 맞추는 토론과 협동이 가장 어렵다고 응답하였다. 그러나 과학연극을 한 경험은 즐겁고 재미있었다는 의견도 다수 있었고, 배운 내용을 과학연극으로 하게 되어서 더 오래 기억할 수 있다는 의견도 있었다.

• 과학교육연구지
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• 제47권1호
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• pp.11-23
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• 2023

이 연구에서는 과학기술 관련 사회쟁점(SSI) 기반 과학 수업이 중학교 3학년 과학 학습부진 학생들에게 미치는 효과를 조사하였다. 연구를 위해 과학 교육과정과 연계된 2개의 SSI를 중심으로 총 7차시의 수업을 개발하여 실시하고, 그 효과를 진단하였다. 연구 자료는 광역시의 한 중학교 3학년 학생 185명을 대상으로 수집하였다. 그중 37명을 과학 학습부진 학생으로 판별하여 연구의 초점으로 하였다. 양적 자료는 과학성취, 태도 및 역량 측정에 대한 사전 및 사후 검사로 수집하였다. 정량적 데이터를 보완하기 위해 교사의 수업 관찰지, 일부 학생과의 면담을 통해 정성적 자료를 수집하였다. 정량적 자료 분석은 윌콕슨 부호순위 검정과 대응 표본 t 검정으로 진행하였다. 분석 결과 SSI 기반 수업이 과학 성취도에서는 학습부진 학생집단에 유의한 효과를 보이는 것으로 드러났지만 태도와 역량의 변화에는 유의한 영향이 없는 것으로 나타났다. 수업 관찰 자료는 학습부진 학생들이 SSI 기반 수업에 더 적극적으로 참여하는 모습을 보여줬으며, 학생의 면담에서 과학 학습부진 학생의 성취에 긍정적 영향을 미치는 수업의 성격을 밝힐 수 있었다. 이러한 연구 결과를 바탕으로 추가 연구 주제를 제안하였다.

• Nuclear Engineering and Technology
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• 제41권4호
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• pp.455-476
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• 2009

The history of nuclear fusion research in Korea is rather short compared to that of advanced countries. However, since the mid-1990s, at which time the construction of KSTAR was about to commence, fusion research in Korea has been actively carried out in a wide range of areas, from basic plasma physics to fusion reactor design. The flourishing of fusion research partly owes to the fact that industrial technologies in Korea including those related to the nuclear field have been fully matured, with their quality being highly ranked in the world. Successive pivotal programs such as KSTAR and ITER have provided diverse opportunities to address new scientific and technological problems in fusion as well as to draw young researchers into related fields. The frame of the Korean nuclear fusion program is now changing from a small laboratory scale to a large national agenda. Coordinated strategies from different views and a holistic approach are necessary in order to achieve optimal efficiency and effectiveness. Upon this background, the present paper reflects upon the road taken to arrive at this point and looks ahead at the coming future in nuclear fusion research activities in Korea.

• Journal of Microbiology and Biotechnology
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• 제28권11호
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• pp.1771-1781
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• 2018

The emergence of multidrug-resistant microorganisms, as well as fungal infectious diseases that further threaten health, especially in immunodeficient populations, is a major global problem. The development of new antifungal agents in clinical trials is inferior to the incidence of drug resistance, and the available antifungal agents are restricted. Their mechanisms aim at certain characteristics of the fungus in order to avoid biological similarities with the host. Synthesis of the cell wall and ergosterol are mainly targeted in clinical use. The need for new approaches to antifungal therapeutic agents or development alternatives has increased. This review explores new perspectives on mechanisms to effectively combat fungal infections and effective antifungal activity. The clinical drug have a common feature that ultimately causes caspase-dependent cell death. The drugs-induced cell death pathway is associated with mitochondrial dysfunction, including mitochondrial membrane depolarization and cytochrome c release. This mechanism of action also reveals antimicrobial peptides, the primary effector molecules of innate systems, to highlight new alternatives. Furthermore, drug combination therapy is suggested as another strategy to combat fungal infection. The proposal for a new approach to antifungal agents is not only important from a basic scientific point of view, but will also assist in the selection of molecules for combination therapy.

• 한국항해항만학회지
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• 제32권9호
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• pp.693-698
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• 2008

The maritime education and training is executed in Asian countries according to The International Convention on Standards of Training, Certification and Watch keeping for Seafarers(STCW). However, mainly basic training and education takes in maritime universities, because this convention is minimum requirements to become junior mariner. So, until now researches have not developed to the stage of discussing how maritime universities of advanced shipping countries should pursue the direction of education in the new eras. Korea and Japan as the leading shipping countries in Asia, need to take initiatives in building a new education system in order to foster the next generation maritime expert. To enhance the professional abilities of maritime technologists in the new era, element design of science and technology relating to maritime issues and a new education system based on an amalgamation of maritime education and scientific and technological education were discussed.

• 한국운동역학회지
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• 제23권4호
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• pp.319-326
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• 2013

The objective of this study is to help golfers to select adequate putters and to provide golfers basic scientific data for improving athletic performance by showing differences of kinematic variables according to the shape of putter head. In this research three right-handed male pro-golfer who are listed at KPGA were studied and three video camera (GR-HD1KR, JVC, Japan) were used and recording speed was 60 frame/sec during the research. In this study kinematic variables were calculated using Kwon3D XP program and analysed on the 4 events and 3 phases. This study showed the following results : (1) The swing of heel-toe putter showed longer time than that of face balanced putter, and there are statistical significant difference of kinematic variables of each objective (2) As of the trajectory of putter head, heel-toe putter showed more approximating curve trajectory than that of in-between, face balanced putter on the X-axis (3) heel-toe putter showed longer distance follow-through than that of other putters by statistically significant difference on the Y-axis (4) Heel-toe putter showed longer distance swing trajectory over the ground than that of other putters by statistically significant difference on the Z-axis.

• Asian-Australasian Journal of Animal Sciences
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• 제19권1호
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• pp.1-6
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• 2006

This experiment first cloned some microsatellite sequences for goose species by magnetic beads enriched method and studied the genetic structure research of 14 indigenous grey goose breeds using 19 developed and 12 searched microsatellite markers with middle polymorphism. According to the allele frequencies of 31 microsatellite sites, mean heterozygosity (H), polymorphism information content (PIC) and $D_A$ genetic distances were calculated for 31-microsatellite sites. The results showed that 25 of 31microsatellite sites were middle polymorphic, so the 25 microsatellite markers were effective markers for analysis of genetic relationship among goose breeds. The mean heterozygosity was between 0.4985 and 0.6916. The highest was in the Xupu (0.6916), and in the Yan was the lowest (0.4985) which was consistent with that of PIC. The phylogenetic tree was completed through analysis of UPGMA. Fencheng Grey, Shoutou, Yangjiang and Magang were grouped firstly, then Xongguo Grey, Wugang Tong, Changle and Youjiang were the second group; Gang, Yan Xupu and Yili were the third group; Yongkang Grey and Wuzeng were the fourth group. The results could provide basic molecular data for the research on the characteristics of local breeds in the eastern China, and a scientific basis for the conservation and utilization of those breeds.

• 한국의류학회지
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• 제17권3호
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• pp.475-490
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• 1993

Even though modem ideal body type is rather tall and slim one, most of women don't coincide with it exactly. The objective of this research was to study the optical illusion effect of clothing design line so that average Korean women can approach the modern ideal body type. This research also tried to show the more scientific method to make stimulus by computer simulation and to present quantitative data. For the experiment, 9 design variables were selected from design principal book as follows : waistline level, skirt length, horizontal line emphasis, vertical line emphasis. princess line, vertical stripe, horizontal stripe, diagonal stripe. Each variable was divided into 4 levels so that 36 experimental designs were made. Visual stimuli which same model was wearing each design were recreated by the CAD system. These were given to evaluating panels through slide projecter. Then panels compared experimental design with basic design by 'tall effect' and 'slim effect', All the data from the experiment were analyszed by ANOVA and DUNCAN test for multiple comparison to study significance, direction(positive or negative), degree, proper extent of optical illusion effect. The result showed that some designs have optical illusion effect to make better look. In addition, it proved that the stronger design variable does not mean the more optical illusion effect and there was proper extent which produce the best illusion effect in each design variable.

• 기술혁신연구
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• 제14권3호
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• pp.71-92
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• 2006

There may exist differences in R&D patterns between multinational enterprises and domestically owned firms located in catching-up countries. This paper examines the differences in R&D patterns between different ownership in Korea. In order to do this, the paper has conducted the in-depth interview of the major multinational and local firms. The interviewed firms has been selected mainly from the telecommunication, semiconductor and display industries. The paper reveals that multinational firms tend to focus on sales-oriented R& while domestically owned firms are likely to cover the range of development, applied and basic research. The most outstanding difference lies in the length of R&D period. The domestic firms apparently turn out to conduct longer period R&D projects than multinational firms. In addition it is revealed that local firms need to develop their own capability, whereas foreign companies in Korea can acquire advanced technology and scientific knowledge from the R&D centers in their home countries. On the basis of the research findings, this paper discusses some implications and recommendations for Korea and other catching-up countries.

• 복식문화연구
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• 제10권6호
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• pp.718-734
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• 2002

The purpose of this study is to provide basic data f3r improvement in Working Uniform in both scientific and efficient ways. The study were enforced by questionnaire and personal interview. The subject of the survey were the workers of 264 in mechanic industry in Seoul. The results obtained from the researches by methods above are as follows. 1. In general, Working Uniform could be classified types of two. One is loose-fitting one-piece garment covering the body and legs, the other is two-piece garment. The latter is a jacket with either sports collar or soutein collar, fastened with either buttons or a zipper and its sleeve is finished by cuffs and tapes. Regarding to color. inkblue, dark navy, khaky, dark beige are favourable ones. 2. In regard to the necessity of uniform that workers suppose, most of them were aware of it and agreed wearing uniform could play an important part. The reason why are on the basis of safety-first and work efficiency and also to protect a body from harmful or toxic dirt specially in machinery workplace. 3. The purpose of wearing an uniform according to statistics of population make some difference in age, gender. categories of industry, and the scale of factory. 4. In regard to care of uniform, front hem, edge of sleeve in a jacket, and knee, hip part in pants were most vulnerable spots for dirt. The parts damaged easily are edge of sleeve in a jacket and a zipper in pants. On the average, laundry have been done by water and was once a week frequency.