• Journal of The Korean Association For Science Education
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• v.24 no.5
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• pp.996-1007
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• 2004

In this study, we investigated the effects of small group discussion using episodes from the history of science on students' understanding about the nature of science (NOS), achievement, enjoyment of science lessons, and science learning motivation. Participants were 138 ninth graders from a middle school in Seoul and they were assigned to a control group and a treatment group. Students in the treatment group were provided with two contrasting perspectives concerning the NOS and were encouraged to discuss them in small groups. The intervention lasted for 5 class periods. The results revealed that students of both the control group and the treatment group were found to possess similar views about NOS in a NOS pretest, whereas students of the treatment group exhibited more sophisticated understanding in a NOS posttest. The scores of the treatment group were also significantly higher than those of the control group in an enjoyment of science lessons test and a learning motivation test. However, there was no significant difference between two groups in the achievement test scores.

• Applied Microscopy
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• v.28 no.3
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• pp.391-398
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• 1998

The morphological phenotype on ocellus of Drosophila rdgC mutant was observed with electron microscope. The result showed the particular phenotype that was not found in other retinal degenarative mutants. The most distinct difference was the orientation of photoreceptor cells. The photoreceptor cells did not attached to corneagenous cells but dropped under corneagenous cells and assembled around newly formed space. Enormous multivesicle bodies caused by the degeneration of photoreceptor cells were frequently found. Rhabdomeres were also severely degenerated in consequence of the mutant. Another degeneration was found in a part of photoreceptor cell, but the degeneration of subrhabdomeric cisternae (SRC) was not found. It was a ovious difference of rdgC comparing with other two retinal degenerative mutants, rdgA and rdgB. As a result, rdgC mutant was affected on the attachment between photoreceptor cells and corneageneous cells, and it suggested the defect of cell-cell attachment. In addition, rdgC mutant was accompanied by the defect not only in retina but nerve system. The results were agreed to the reference discussion that the rdgC molecule is exist in the nerve.

• Ocean Systems Engineering
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• v.7 no.1
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• pp.53-74
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• 2017

Ship shaped FPSO (Floating Production, Storage and Offloading) units are the most commonly used floating production units to extract hydrocarbons from reservoirs under the seabed. These structures are usually much larger than general cargo ships and have their natural frequency outside the wave frequency range. This results in the response to first order wave forces acting on the hull to be negligible. However, second order difference frequency forces start to significantly impact the motions of the structure. When the difference frequency between wave components matches the roll natural frequency, the structure experiences a significant roll motion which is also termed as second order roll. This paper describes the theory and numerical implementation behind the calculation of second order forces and motions of any general floating structure subjected to waves. The numerical implementation is validated in zero speed case against the commercial code OrcaFlex. The paper also describes in detail the popular approximations used to simplify the computation of second order forces and provides a discussion on the limitations of each approximation.

• English Language & Literature Teaching
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• v.17 no.4
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• pp.273-291
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• 2011

This study investigates factors that influence ESL learners' use/avoidance of English phrasal verbs. It especially focuses on two factors, topic difference and group membership. For the purpose, 60 ESL students who took the University English Proficiency Test (UEPT) were selected, and the 60 essays they wrote for the UEPT were analyzed. All the students were with non-Germanic first language backgrounds. Among the 60 essays, 30 essays were selected from the essays written for the International Students UEPT (IS UEPT), which was required of all new international students. Another 30 essays were selected from the essays written for the Regents' UEPT, which was required of all non-native English speaking undergraduate students as a graduation requirement. Results indicate that the length of residency in the U.S. and/or academic status and semantic complexities of English phrasal verbs but not topic difference nor English proficiency affected the use of English phrasal verbs. The study ends with a discussion of pedagogical implications of the findings.

• The Journal of Korean Association of Computer Education
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• v.16 no.2
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• pp.29-37
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• 2013

In the environment of emphasizing creativity, computer application instruction model is in demand which is developed for the group discussion, enlarging the range of thinking, and creativity. The purpose of this study is to develop a PBL-based computer application instruction model concerning creativity after researching problems during the use of computer education by group. The theoretical background of class model is PBL, and the efficiency and creativity of class is considered while using web-mind map as the tool for the discussion and data sharing. As a result of applying the suggested model to the students enrolled in the production of presentation instruction, it made probabilistic meaningful outcome where complaint with communication, data sharing, role sharing, difference of contribution, excessive run-time and etc. were reduced.

• International Journal of Advanced Culture Technology
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• v.8 no.1
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• pp.213-217
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• 2020

In this paper, we present that Virtual Reality (VR) is a type of media that has attracted interest in storytelling and media utilization. VR was first discussed as a specific narrative medium with traditional story medium. Via this discussion, The innate difference of VR is that the role of the media users in which the narrative is communicated were active in the development of the narrative unlike that of most classical narrative media. We also discussed specific features related to VR based on the theories of traditional literary criticism, movie reviews, and plays. Through these discussions, we aruged two directions of VR storytelling production as an narrative medium, its specificity, and its expressiveness for VR producers. First, story processing and characters can be introduced as part of continuing a new narrative by altering the interaction history that appears in VR stories to user interest ratings. Second, VR interaction responds intuitively to the idea that it represents a trajectory across the story surface of all possible interactions. More specific theories and controvercials are discussed.

• Korean Institute of Interior Design Journal
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• v.14 no.5 s.52
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• pp.133-140
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• 2005

Jacques Derrida, a leading theorist of the post-structuralism, has explicated how the material reality is subordinated to the ideality of form, by noticing the platonic concept, 'chora', which implicates the spatiality as the matrix and also by actualizing its essential meaning as the femininity. On the basis of the idea of the platonic 'chora', the Derridian deconstructive spatiality and its feminist oriented enlargement of Grosz this study is purposed to elucidate the architectural idea of Zaha Hadid that is located in the similar horizon with the deconstructionism. On the one hand it is focused on the explication of the new concept of space, which is dealt with the deconstruction of the traditional concept of space, on the other on the inference of the feminity of the originally understood spatiality. With this inference it is finally intended to reexamine the foundation of the discussion for the architectural space that must be ahead of the discussion for the difference between the masculine and the feminine space. If it is fundamentally and manifoldly executed, not only the architectural paradigm will enter into an renewed phase, but also the various ways toward the new direction of the architecture be explored.

• Journal of Radiation Protection and Research
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• v.46 no.2
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• pp.80-82
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• 2021

Dr. Haruyuki Ogino, a member of the Japan Health Physics Society (JHPS), was awarded the 2021 Bo Lindell Medal by the International Commission on Radiological Protection (ICRP). To commemorate this, the "Joint JHPS-KARP-ARPS program for young radiation protection (RP) scientists to discuss the future of RP" was organized via a web meeting system. First, Dr. Ogino gave a lecture, and then young researchers selected from each academic society made presentations on the future of RP. After the presentations by the three researchers, a free talk was held-young researcher groups of each country being active is a great opportunity to collaborate and exchange information. It was emphasized that the low awareness of knowledge related to radiation has been common to all of the participating countries. Thus, it is necessary to utilize communication via web technology, as done for this program, effectively. One of the biggest advantages for Asia and Oceania is that we do not have a significant time difference. The round-table discussion was concluded by expressing the hope of active exchange and development of young researchers in the future.

• Journal of Korea Entertainment Industry Association
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• v.15 no.3
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• pp.183-192
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• 2021

This study was purposed to explore the learning culture through the related literature and research review in Jewish Havruta which has interaction, critical reflection, and the driving force creating a better world. The prior researches on Havruta mainly tend to as ways to increase learners' interest in learning and studies as curriculum or teaching methods such as creativity, understanding, and problem-solving skills. However, Havruta is not just method to study subjects, but rather a process of developing thinking through dialogue and discussion. Therefore, Havruta's essential meaning as a lifelong learning should be explored. Studies showed that Jews embody the thinking process from interpreting, analyzing, setting up logic, questioning, discussing, and debating Talmud with others anytime, anywhere, and anyone throughout their learning culture. It develops basic skills for life, forms an integrated personality in relationships with others, and continuously conducts lifelong learning to shape one's own beings. Therefore, lifelong learning culture would be sharing information that one has in the process of discussion through dialogue between two or more people, and supporting and encouraging the other's failure or fear rather than attacking them. The embodiment of thinking process in which people teach and learn eachother, accept the difference, and expand thought would be significant foundation to create lifelong learning culture.

• Quality Improvement in Health Care
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• v.9 no.1
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• pp.52-64
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• 2002

Background : Coding of principal diagnosis is essential component for producing reliable health statistics. We performed this study to evaluate the current practice of principal diagnoses determination and coding, and to give some basic data to improve coding of principal diagnosis. Method : Nineteen medical record administrators (MRAs) of 3 university hospitals participated in coding principal Dx. from August 1, 2001 to August 31, 2001. From each hospital, 10 medical records of patients with high frequency disease were selected randomly. Each 10 medical records were grouped into three (A. B, C). Then, these 30 medical records were given to each MRAs for coding. At the same time questionnaire was given to each of them. Questions were to prove how they decide and code the principal diagnosis among many current diagnoses; how they decide and code the principal diagnosis when they see irrelevant diagnosis recorded as the principal diagnosis in medical record, when only tentative diagnoses were recorded without final diagnosis, and when different diagnoses were recorded in different sheets of same record. Agreement of coding among 3 hospitals were compared and survey results were analysed with SAS 6.12. Results : Agreement of coding was found in medical records 5-6 of each 10 medical records. Causes of disagreement were as follows. Difference of clinician's opinion from each hospital; mixed use of guideline from KCD-3 and guideline from DRG; difference in 4th digit classification according to the absence of pathology report in the medical record; difference of abbreviations among hospitals. 57.9% of MRAs selected the principal diagnosis recorded by physician, 42.1% of MRAs decided principal diagnosis after consulting to KCD-3 guideline. When there were difficulties in determining the principal diagnosis, 42.1% of MRAs decided principal diagnosis after discussion with the physician, 26.3% after discussion with fellow MRAs. Conclusion : There were differences in codings among hospitals. To minimize the difference, we suggest the development of disease-specific guidelines for coding in addition to the current general guideline such as KCD-3. To do this, Coding Clinic which can produce guidelines is needed.