• Journal of Korean Elementary Science Education
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• 제34권4호
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• pp.486-501
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• 2015

In the elementary school science curriculum, wind is one of the most important concept. In particular, land and sea breeze has been a key example to deliver how wind is driven, and thus its model experiments have been used to help students understand causes of wind. Here we compare causes and explanations for wind and land and sea breeze between textbooks in colleges and elementary schools to examine any potential improvement for the contents. In addition, we conducted survey to examine how pre-service teachers understand land and sea breeze, and convection box experiment used in elementary school textbooks is useful to understand land and sea breeze. Based on the comparison, we find that college level textbook explains the cause of wind as atmospheric pressure difference while elementary school textbooks explain them differently according to curriculums. In the textbooks, there are a difference in the way described for land and sea breeze. Analysis of questionnaire indicate that pre-service teachers understood land and sea breeze correctly, and they selected the convection box experiment in 2009 curriculum textbooks as the most suitable one. Explanations and experiments for land and sea breeze in the textbooks have been revised as the modification of elementary school curriculums. We expect this study helps to deliver more solid contents for wind and land and sea breeze in the upcoming new curriculum.

• Asia pacific journal of information systems
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• 제25권3호
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• pp.473-499
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• 2015

The limited literature on Open Source Software (OSS) customers' adoption does not provide explanations on how OSS services are adopted by customers in the presence of functionally superior commercially licensed software (CLS). This paper aims to uncover the process that shapes customer satisfaction of OSS services in comparison to CLS. Expectation Disconfirmation Theory (EDT) is adapted and integrated with pre implementation factor model that influences software customers' expectations including cost, reputation, and experience. The constructed research model is empirically validated using a field survey of OSS and CLS database management system (DBMS) customers in Korea. The theoretical contribution of the paper lies on the application of EDT to explain the wide adoption of OSS DBMS services in the presence of functionally superior CLS DBMSs. Furthermore, this paper integrates EDT with pre-implementation factors for customers' expectations, which has been considered a limitation of the theory. Among the practical contributions, this study draws attention to the substantive differences between OSS and CLS customers' expectations. Additionally, it offers initial explanations for the differences in customer behavior for OSS and CLS and the way that customers' expectations and actual performance are mingled together to form customer satisfaction.

• Journal of Korean Medical classics
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• 제25권4호
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• pp.65-83
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• 2012

Objective : Studying Naekyung's relation with confirmation of the three segments in the Chongu-mac palpation and the assignments of five vidcera and six entails. Finding the original principles of the segmemt confirmation in the Chongu-mac palpation from Naekyung. Method : Analyzing the relating contents of the Palpation of Chuk-bu and Chongwanchuk-sambu in Somoon, Macyojungmiron. Performing comparative study on the successive doctors' notes. Result : Found that the confirmation of the three segments in the Chongu-mac palpation and the assignments of five vidcera and six entails was originated from Naekyung. The original diagnotic principles of Naekyung are more clearly revealed. Conclusion : Somoon, Macyojungmiron is about the palpation of Chuk-bu. Somoon, Macyojungmiron is the origin of Chongu-mac diagnosis. The method of dividing the three segments in Chongu-mac diagnosis is from Somoon, Macyojungmiron. The Chongu-mac diagnosis should follow the principles found in Naekyung.

• Journal of Korean Medical classics
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• 제31권1호
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• pp.139-156
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• 2018

Objectives : This paper provides a general introduction of a person Seopa Lee-yidoo and the contents of his medical text, Uigamsanjeonyogyul. The paper then investigates how this text summarized and recomposed Donguibogam. Methods : The paper first reviews the activities and academic leanings of Lee-yidoo, the author of Uigamsanjeonyogyul, as described in his book Seopa-munjip. Furthermore, the paper compares Donguibogam and Uigamsanjeonyogyul's process of summarizing Donguibogam. Based on this the paper divides these comparisons and introduces examples. Results : When the overall composition, formation, and the original contents of Uigamsanjeonyogyul were compared with the texts of Donguibogam, it was discovered that the former wholly accepted the composition of the latter but made bold summarizations. Meanwhile, Uigamsanjeonyogyul added a detailed list of contents at the beginning of the book, and its original contents provided integration, relocation, and detailed explanations of Donguibogam two sections. It gave changes to bogam's prescription configuration and explanations on the mechanism of diseases, and it also added a section for new prescriptions. Like this, Uigamsanjeonyogyul showed a great deal of knowledge regarding the clinical field. Conclusions : Uigamsanjeonyogyul which was published as a summary of Donguibogam, faithfully follows the texts of Donguibogam. At the same time, it provides summary, improvement, and rearrangement based on the author's academic leanings.

• Journal of Korean Medical classics
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• 제29권3호
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• pp.81-99
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• 2016

Objectives : In this study, the meaning of Wuxing(五行) and Ganji(干支) in Suwenrushiyunqilunao (素問入式運氣論奧) and Wuxingdayi(五行大義) is reviewed to compare the interpretations of Wuxing and Ganzhi. Methods : The explanations of Wuxing, Sipgan(十干) and Sibiji(十二支) in the chapters of Suwenrushiyunqilunao and Wuxingdayi were studied to find different points of view. Results : Suwenrushiyunqilunao explained the meaning of Wuxing and Ganji using expression and metaphors of Yinyangwuxing(陰陽五行) theory while Suwenrushiyunqilunao describe their fragmentary characters. Also, Suwenrushiyunqilunao attached each one of Wuxing to substance(質), rule(理), shape(形), nature(性), righteousness(義). Conclusions : The differences of the explanations between the books point that there has been a deepening understanding of Yinyangwuxing and developments of Yunqixue(運氣學) in about 500 years from the publication of Wuxingdayi.

• Journal of Korean Medical classics
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• 제23권3호
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• pp.69-80
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• 2010

The four taboos in using Baekhotang as explained by Odang(吳瑭), are identical to the standard symptoms of Severe Exterior Heat Syndrome[表熱重證]. There are similarities between Sanghan and Onbyeong in using Baekhotang(白虎湯). But there are significant differences between Sanghan and Onbyeong in explaining the pathogenesis of human body. In pattern identification by the Wi-Gi-Yoeng-Hyeol(衛氣營血) system, body fluid[津液] is the key feature, whereas in that of the Yuk-Gyeong(六經) system, Yanggi(陽氣) is the point. Therefore, we can understand that the standard symptoms of pattern identification are slightly different. However, that Sanghan and Onbyeong present different explanations does not mean that the disease itself strictly 'belong' to one category. They are different approaches, not explanations for two different subjects. Therefore, Sanghan and Onbyeong should be studied in line with this concept.

• Journal of Korean Elementary Science Education
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• 제23권2호
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• pp.101-109
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• 2004

The purpose of this research is to provide useful data in forming sound scientific concepts by investigating elementary students' non-scientific concepts related to their concepts of biological adaptation, and by analyzing the general inclinations and causes of some misconceptions. Twenty-four objective questions were designed to be given to 5th and 6th grade elementary students in order to investigate their concepts of biological adaptation. According to the test results, they formed scientific concepts in most questions. But they appeared to have many misconceptions in some parts which should be guided by the teacher's additional explanations rather than by the education curricula's focus. There are some cases where the 6th grade students had more misconceptions than the 5th grade students who were not systemically taught the concepts of biological adaptation, for the reasons of strengthening or maintaining the misconceptions by confusing the contents of learning. Male and female students have different scientific concepts of different questions according to their interest and attention. Therefore, it is necessary to develop various teaching-learning data which can help the teachers' additional explanations about the concepts of biological adaptation and invoke students' interest and attention, and to seek appropriate measures to form sound scientific concepts among teachers as well as students.

• Journal of the Speleological Society of Korea
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• 제87호
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• pp.23-33
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• 2008

All types of tourists visit the cave. The names and explanations of cave formations give very useful information to them. Unfortunately, however, there are a lot of wrong and incorrect statements in the information. Thispaper has investigated this problem in considerations for the importance of information delivery. The problem has turned out as follows: 1) Most of the cave formation names are too abstract based on the shape instead of scientific names; 2) The names are mostly available with little scientific explanation; 3) In case of explanation, wrong, incorrect and controversial statement is found.

• Journal of Korean Elementary Science Education
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• 제37권4호
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• pp.391-401
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• 2018

This study investigated elementary students' perception of the suitability of inquiry activities related to the science inquiry, essential features of the inquiry and essential features of the inquiry by science inquiry activities. First, 5-6th grade elementary students' perception of the suitability of inquiry activities to the science inquiry was positive in this study and especially the score of experiment and field trip was high. The lowest score was on the discussion and elementary students thought that discussion might be wrong, because they just talked when they participated in the discussion. Second, perception of the essential features of science inquiry was positive. Especially, engaging students in evaluating their explanations in the light of alternative explanations was the highest. Students thought that explanation is important, but it is too hard to perform the science inquiry with only the explanation. Third, the score of research and experiment was high in essential features of science inquiry by science inquiry activities. The score of the field trip was low, so a more meaningful field trip should be carried out in the school.

• The Korean Journal of Archival Studies
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• 제60호
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• pp.239-281
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• 2019

Percival Lowell was the first foreigner who came into Korea with a camera in 1883 and left about 80 of photographic materials. The materials have not been studied even though all of them are the only and first in the history of Korea. Most of the materials archived by Putnam Collection Center in America are offered on-line with wrong explanations and referred by writers and researchers. So that I studied the contents of the photographic materials and suggest corrected explanations to the Center.