• Journal of the Korean earth science society
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• v.36 no.1
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• pp.51-58
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• 2015

In order to understand the broad outline and palaeobotanical significances, the fossil woods from the Korean Peninsula were integrated through the literature surveys. Types and diversity of them are gradually increasing from Mesozoic to Cenozoic, especially increased sharply in Cenozoic. During the Early Mesozoic, six conifer taxa belonging to four genera were described, which corresponds to about 6% of the Daedong flora. Those of the Late Mesozoic are all conifers, consisting of fifteen taxa belonging to seven genera, which corresponds to about 29% of the Nakdong flora. During the Neogene, thirty four taxa belong to sixteen families were described. Those woods mostly consist of dicotyledon and have the greatest diversity compared to other geologic eras, which corresponds to about 83% of the Janggi flora. It is inferred that such a rapid increase of the silicified wood fossils in Neogene are due to the abundant presence of dicotyledon in floral composition and of pyroclastic rocks in strata, which are appropriate for preserving wood as fossils.

• The Journal of Korean Medicine
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• v.35 no.1
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• pp.145-156
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• 2014

Objectives: Korean medicine hospitals, since they first emerged in the early 1970s, have rapidly become a new member of the hospital population. As it was a new organizational frame for traditional medicine, we tried to analyze the changes of Korean medicine hospitals coping with institutional environment and their relative positioning in the whole health care sector. Methods: On the basis of Scott and his colleagues' identification of the three components of institutional environments, changes in organizational logics, actors, and governance of Korean medicine hospitals during the period from 1971 to 2010 were analyzed. Results: First, Similar to previous literature on institutional eras of Korean health sector, three distinct periods were characterized: the foundation of Korean medicine hospitals to consolidate the legal status(1971~1986), a rapid increase of entrepreneurial hospitals through cultural-cognitive legitimacy(1987~2001), and the reinforcement of specialization and competition(2002~present). Conclusions: Results suggested that: (1) changes in institutional environments hada heavy impact on structural and behavioral changes among Korean medicine hospitals, but the pace was slower than that of western medicine hospitals. (2) In structure, Korean medicine hospitals have positioned themselves as unofficial long-term care hospitals, focusing on chronic diseases(e.g. cerebrovascular disease). Our study demonstrated that organizational theories can provide useful framework for the analysis of Korean medicine and related policies. Indeed, one of the most important implications of this study is that understanding changes in institutional environments is important to understand the process of how members of the health care sector live, grow, change, decline and survive.

• Journal of the Korean Chemical Society
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• v.45 no.4
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• pp.357-369
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• 2001

This study aimed to analyze the evolution of general ideas concerning the element and the atom. In the scientific viewpoint, the modern idea of the element has been variously revised by the ancient Greeks, Boyle-Lavoisier, and Dalton. The definition of the atom was confused with that of the element from the ancient Greecian era to Lavoisier's era. The definition was also changed by Dalton and Rutherford. An analysis of the definitions of element and atom as presented in science textbooks for secondary school students and in general chemistry textbooks revealed that these definitions from diverse eras are confusing and inadequately explicated. The definition presented in one textbook was contradictory to the definitions in other textbooks. This tendency has been sustained in the textbooks from the 4th to 6th science curriculum. Therefore, we need to clarify the definitions of element and atom in order to help the students gain a better understanding of these scientific concepts.

• Journal of the Korea Society of Computer and Information
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• v.17 no.5
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• pp.147-155
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• 2012

Police education has shown a pronounced improvement during three eras in American police history. as the Reform Era arrived, the police academy was invented. With it, citizen expectations for the police expanded, and the level of competence exhibited by police grew. After the 1960s came the invention of the FTO and the creation of ongoing, in-service training requirements. in recent years, academics in many places-but by no means everywhere-are taking a more collegial approach to training, aimed especially at COP- style policing and the achievement of genuine professionalism. The Korean police training system is less efficient in education methodology, more inappropriate in the switch system of school education and practice, and poorer in educational environment, among others. Based on my findings, this paper recommends several improvement tips. First, legal stipulations on police training should be integrated and detailed. Second, active participation by preliminary police officers should be emphasized in the class of police training. Third, contents and hours for practice should be emphasized to maximize effects of the "switch system." Fourth, the educational environment of the Academy should be improved.

• Korean Journal of Human Ecology
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• v.18 no.3
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• pp.799-807
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• 2009

When analyzing make-up trends of figures shown in portraits of different eras in Chinese painting history, you can see that red color was used much. This can be because the red color is the most outstanding among all the colors and was most preferred by ancient people, as the color of the sun, the blood, and the sacredness. The women in the Tang Dynasty was especially using the red color much. Though Seongrihak (Neo-Confucianism) in Song Dynasty was the governing ideology, it had an influence even upon its aesthetics. Thus, during Song Dynasty, the beauty of logos appeared too. This phenomenon showed a conservative tendency even in make-up as well as in costume, thereby the concept of clear and elegant beauty was emphasized. The real figure in the Ming and Ching Dynasty, was so young and weak as a sample of a delicate woman that a woman who had feminine beauty was regarded as an ideal type. The feminine image had been gradually generalized from the literary works in the latter half of Ming Dynasty. However, the painters in the era still preferred the beauty of a healthy woman. That tendency probably had an influence even upon make-up culture that was shown in portrait. As an analysis result of make-up culture in Chinese portrait paintings, it reveals that ancient make-up trends much reflected the social and cultural phenomena of the periods.

• Journal of Korean Medical classics
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• v.24 no.6
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• pp.169-186
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• 2011

1. In Sui, Tang and Five Dynasty, a discourse related to sleep was published in various big Fang Shu(方書)'s that later became a valuable historical data. Notably, the importance of good sleep began to be properly discussed in "Bei Ji Qian Jin Yao Fang(備急千金要方)" of 'Sun Si Miao(孫思邈)', etc. 2. During Two Song era, achievements in the previous eras were accepted and diseases related to sleep were explored in more details. 3. In Jin and Yuan(金元) era, Liu He Jian(劉河間), in "Su Wen Xuan Ji Yuan Bing Shi(素問玄機原病式)", recognized 'anger' as the cause for various sleep disorders and Li Dong Yuan(李東垣), in "Pi Wei Lun(脾胃論)", believed 'lethargy' and 'Shi Hou Ji Hun Mao Yu Shui(食後卽昏冒欲睡)' are related to narcolepsy linked with stomach. Zhang Cong Zheng(張從正) observed 'insomnia' as an isolated disease whereas Zhu Dan Xi(朱丹溪), in "Ge Zhi Yu Lun(格致餘論)" argued about somnambulism based on the relationship between Xiang Huo(相火) and Xin huo(心火).

• Journal of the Korean Society of Costume
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• v.52 no.1
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• pp.145-158
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• 2002

The so-called 'Bustle'which was a support put on waist to heave the side the buttocks means the grandiloquent style to express to ideal body. Bustle style. one of the outstanding and remarkable fashion trends in the late 20th century, has significant meaning in fashion history. This is because not only the style has the longest history, but also it has been periodically repeated every end of a century from the 17th to the 20th century. To analyse to cause the Bustle style was shown, I studied first the sign of forthcoming activity of the Bustle style, the change of the Bustle style shown In the times at the end of century and feature of the Bustle style. Based on the previous reasons of appearance of the Bustle style In the history. there are two similarities. First. reaction led to an occurrence of the reactionary tendency, the Bustle style as they were eager for the past because of a feeling of uneasiness about a coming century. Second, the principle of retrogression led to an occurrence of the Bustle style craving for new style. This Bustle style welch was reaction from being tired of the former fashion appeared to expression a desire for new style. In short, Bustle style was an intermediation between different histories and the basis for continuous development of new eras. rather than lust a part of classicism.

• Education of Primary School Mathematics
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• v.14 no.2
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• pp.103-116
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• 2011

'The nine chapters on the mathematical art' has dominated the history of Chinese mathematics. It contains 246 problems and their solutions, which fall into nine categories that are firmly based on practical needs. But it has been greatly by improved by the commentary given Liu Hui and it was transformed from arithmetic text to mathematics. The improved book served as important textbook in China but also the East Asian countries for the past 2000 years. Also It is comparable in significance to Euclid's Elements in the West. In the middle of 19th century, Chosun mathematicians Nam Byung Gil(南秉吉) and Lee Sang Hyuk(李尙爀) studied mathematical structures developed in Song(宋) and Yuan(元) eras on top of their early on 'The nine chapters' and 'ShuLiJingYun(數理精蘊)'. Their studies gave rise to a momentum for a prominent development of Choson mathematics in the century. Nam Byung Gil is also commentator on 'The Nine Chapters'. His commentary is 'GuJangSulHae(九章術解)'. This book provides figures and explanations of how the algorithms work. These are very helpful for prospective elementary teachers. We try to plan programs of elementary teacher education on the basis of 'The Nine Chapters' and 'GuJangSulHae'.

• Asian Journal of Innovation and Policy
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• v.9 no.2
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• pp.187-206
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• 2020

Under the on-going evolution of the COVID-19 pandemic, estimating the economic impact of the pandemic is highly uncertain and challenging. This situation makes it difficult for policymakers, governors, and economic entities to formulate appropriate responses and decision makings. To provide useful information about the effect of the COVID-19 pandemic on the Korean economy, this study examined macroeconomic impact analysis stemming from the pandemic shocks with different scenarios for the Korean economy. Based on three scenarios using the growth rate of 2020 GDP and consumer expenditure patterns, the 2021 GDP by industry sector was forecast with two new approaches. First, the recovering process of the Korean economy from the shock was analyzed by applying a Flex-IO method. Second, a new forecasting approach combined with an IO coefficient matrix was applied to forecast the future GDP changes. The findings of this study are summarized as follows: First, the total GDP growth rate under the Pessimistic Scenario demonstrates less rebound from the shock than that of the Base Scenario. Second, agriculture, culture, and tourism-related sectors that are suffering from the severe losses of COVID-19 showed lower resilience than other different industries. Third, information and communications technology (ICT) industry maintains a stable growth trend and is expected to take the leading role for the Korean economy in the post-COVID-19 and the Industry 4.0 eras. The findings deliver that it needs to analyze how government expenditure responding the shock into the forecasting model, which can be more useful and reliable to simulate the resilience from the pandemic.

• Archives of design research
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• v.11 no.1
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• pp.81-88
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• 1998

In the history of the design movement since 18708 in Japan, four eras can be seen; the first era started with the opening of Meiji era and oontinued to the World War I, the second era to the World War II, the third era from right after the second world war to 1960, and the fourth era after 1960. Before the second world war, the design education of Japan had been influenced by plenty of modem design movements which brought about in Europe such as Art and Craft Movement of William Morris, Deutscher Werkbund, and Bauhaus and by American industrial design after the World War II. Japan which early introduced western civilization established design department in universities in 1940 professing itself to be a original design education. And Japan has kept making progresses with the help of design policies of the government until now, and has seen the tornadoes of education revolution in every university after the oollapse of bubble eoonomy.