• Proceedings of the Korean Society of Crop Science Conference
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• 2017.10a
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• pp.184-184
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• 2017

• Proceedings of the KSAR Conference
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• 2002.06a
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• pp.65-65
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• 2002

본 연구는 태아 섬유아세포에 hEPO 를 도입하여 transfedtion된 체세포를 공여핵으로 사용하여 복제수정란을 생산함에 있어서 배반포 발달율을 조사하고자 하였다. 실험에 공시된 공여핵은 임신 30일령의 태아로부터 섬유아 세포를 회수하여 10% FBS 첨가된 ES-DMEM 배지에서 3-4일 동안 배양하여 confluent 를 형성시킨 후 0.25% trypsin을 처리하여 neo-EGFP 와 UPⅢ-hEPO 유전자가 1:9로 함유된 배지에서 electroporation을 실시하였다. (중략)

• Proceedings of the KSAR Conference
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• 2002.06a
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• pp.86-86
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• 2002

To examine the feasibility of using a sperm vector system for gene transfer, we have investigated the binding and the uptaking of foreign DNA into the sperm nucleus by PCR, in situ hybridization and LSC. We have also examined the transportation of exogenous DNA into oocytes by immunofluorescene via PCR. Sperm cells were incubated with DNA/liposome complexes (1:4 ratio) in fertilization medium with BSA or without BSA. (omitted)

• Bulletin of the Korean Space Science Society
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• 2008.04a
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• pp.27.1-27.1
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• 2008

• Journal of the Korean earth science society
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• v.23 no.2
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• pp.188-193
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• 2002

Various research methods have been used in science depending on the various contexts. This implies that certain methods or inferences may be more frequently used in earth science. The purpose of the study are to explore the contexts of earth science, and the inferences frequently used in earth science. The context earth science research is quite different from that of other areas of natural science in terms of its time scale, space scale, accessibility, complexity, and controllability. The purpose of earth science research is twofold: historical and causal. The inferences frequently used in earth science are abduction and prediction. Abductive inferences go from the resulting state to controlling state. Predictive inferences go from hypothesis to expected data.

• Proceedings of the Korean Vacuum Society Conference
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• 2006.02a
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• pp.110-110
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• 2006

• Journal of Korean Elementary Science Education
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• v.29 no.1
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• pp.86-92
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• 2010

Although constructivist assessment has been emphasized by many science educators, most elementary school teachers are still not familiar with this. In order to investigate the causes of this problem, we examined the perceptions of pre-service elementary school teachers toward constructivist science assessment and the relationships among the perceptions toward constructivist science assessment, the views on science teaching and learning, science teaching efficacy beliefs, and the perceptions toward constructivist science learning environment. Analyses of the results revealed that the perceptions of pre-service elementary school teachers toward constructivist science assessment were higher than those of the elementary school teachers reported previously. The results of a stepwise multiple regression analysis indicated that the views on constructivist science teaching and learning and personal science teaching efficacy beliefs were the significant predictors of the perceptions toward constructivist science assessment.

• Journal of The Korean Association For Science Education
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• v.14 no.2
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• pp.192-198
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• 1994

The Purpose of this study was to investigate secondary science teachers' perceptions on the goals of science education, science teaching strategies, science curriculum, and STS themes to ascertain the extent to which the current science programs incorporate with STS themes. The results of this study indicated that the perceptions of science teachers did not support the view that the STS themes have become established in contemporary secondary science education. However, they showed willingness to incorporate STS themes into their science teaching. Based on these results, the implementation of STS themes in science teaching were esstimated to be valuable for Korean science education.

• Preventive Nutrition and Food Science
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• v.10 no.4
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• pp.382-390
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• 2005

This study evaluated trends in research funding and the present status of food science in Korea with a special emphasis on funding by Korea Science and Engineering Foundation (KOSEF). The proportion of research funds allocated to food science has increased every year in agricultural science. The numbers of group-based programs of KOSEF have been increasing since 1980' and the ratio of individual-based programs decreased in . this-field. Researchers in the food science field ranges. from 46 to 50 years of age, with a mean age of 47. Mid- to long-term research master plans will be required to encourage food science research in Korea.

• 한국초전도학회:학술대회논문집
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• 2009.07a
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• pp.72-72
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• 2009