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Habitat Characteristics and Distribution of Cymbidium kanran Native to Jejudo, Korea (제주한란의 자생환경 특성 및 분포에 관한 연구)

  • Lee, Jong Suk
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.7 no.1
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    • pp.40-49
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    • 2004
  • This work carried out to define the characteristic of Cymbidium kanran habitat at Mt. Halla in Jejudo, Korea from the ecological point of view including geological and topographical features, air and soil temperature, relative humidity, fluctuations of light intensity, habitat vegetation, distribution altitude, area limit, and etc. And another goal of this study consider the conservation counterplan of the cymbidium habitat. Natural distribution areas of the cymbidium were observed more abundantly on the well drained south and east-facing slopes. Soil acidity was ranged from pH 4.1 to 5.3, and electric conductivity was ranged from 176.4 to 299.9 us/cm (average 215.3 us/cm). Base-saturation percentage of the habitat soil was below 50%, bulk density 0.42g/$cm^2$, particle density 2.05g/$cm^2$, humus content 26%, total nitrogen 0.82%, available phosphate 4.2 mg/kg, exchangeable potassium 0.63 Cmol/kg, calcium 0.44 Cmol/kg and magnesium 0.67 Cmol/kg. Annual mean air temperature was $15.4^{\circ}C$, however, air temperature was ranged $11.7{\sim}18.2^{\circ}C$ in spring, $21.2{\sim}23.8^{\circ}C$ in summer, $12.8{\sim}22.0^{\circ}C$ in fall and $5.5{\sim}7.8^{\circ}C$ in winter season. Annual mean soil temperature at depth of 10cm was $13.2^{\circ}C$ And minimum value was recorded $4.7^{\circ}C$ on January, and maximum value $22.5^{\circ}C$ on August. Relative humidity was ranged 90.8~94.7% in summer, 80.8~91.5% in fall and 77.6~84.2% in winter season. Minimum value was 56.5% on December, and maximum value was 100% on July and August. Light intensities were ranged from 400 to 1,800 lux at the greater part of Cymbidium kanran sites in Jejudo. Summer regarded as an lower light intensities was recorded to be range of 500~600 lux; however, autumn and winter were shown higher light regimes ranged from 3,500 to 3,800 lux. Therefore, one must be suprised that the cymbidium grow at the light condition of 6 lux (minimum) or 10,000 lux (maximum). Tree species keeping higher frequency rate and density were Eurya japonica, Camellia japonica, Castanopsis cuspidata, Carpinus laxiflora and Pinus densiflora. Number of trees growing in a 5${\times}$5m quardrat was 35 as an average, and proportion of evergreen versus deciduous was 5:1. Distribution altitude of the orchid habitat was ranged from 120m (low) to 840m (high) from sea level on the south facing slope of Mt. Halla, and was ranged eastern borderline of Gujwaup, Bukjejugun to western boundaries of Jungmundong, Seogwipo city. For the stable conservation of Cymbidium kanran habitat, sunlight regimes must be increased more by means of cutting trees or twigs in the site.

Phase Behavior of Simvastatin Drug in Mixtures of Dichloromethane and Supercritical Carbon Dioxide and Microparticle Formation of Simvastatin Drug Usins Supercritical Anti-Solvent Process (디클로로메탄과 초임계 이산화탄소의 혼합용매에서 Simvastatin 약물의 상거동과 초임계 역용매 공정을 이용한 Simvastatin 약물 미세입자의 제조)

  • Oh, Dong-Joon;Lee, Byung-Chul
    • Clean Technology
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    • v.13 no.1 s.36
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    • pp.34-45
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    • 2007
  • Phase behavior of the ternary systems of water-insoluble simvastatin drug, which is well known to be effective drugs for hypercholesterolemia therapy, in solvent mixtures of dichloromethane and supercritical carbon dioxide was investigated to present a guideline of establishing operating conditions in the particle formation of the drugs by a supercritical anti-solvent recrystallization process utilizing dichloromethane as a solvent and carbon dioxide as an anti-solvent. The solubilities of simvastatin in the mixtures of dichloromethane and carbon dioxide were determined as functions of temperature, pressure and solvent composition by measuring the cloud points of the ternary mixtures at various conditions using a high-pressure phase equilibrium apparatus equipped with a variable-volume view cell. The solubility of the drug increased as the dichloromethane composition in solution and the system pressure increases at a fixed temperature. A lower solubility of the drug was obtained at a higher temperature. The second half of this work is focused on the particle formation of the simvastatin drug by a supercritical anti-solvent recrystallization process in a cylindrical high-pressure vessel equipped with an impeller. Microparticles of the simvastatin drug were prepared as functions of pressure (8 MPa to 12 MPa), temperature (303.15 K, 313,15 K), feed flow rate of carbon dioxide, and stirring speed (up to 3000 rpm), in order to observe the effect of those process parameters on the size and shape of the drug microparticles recrystallized.

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A Comparative Study on the Symbolism of the Combination of Animals One Another in East Asian Comedic Stories and Proverbs (동아시아 소화(笑話)·속담(俗談)속의 동물조합 상징성 비교)

  • Keum, Young-Jin
    • Cross-Cultural Studies
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    • v.42
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    • pp.205-240
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    • 2016
  • The combination of animals has been developed in each of the cultural spheres as a method of metaphor and symbolism of the cultural code. However, its symbolism is not a fixed constant, but a variable and relative constant. This work focused on its features in comparison with East Asian cultural spheres comedic stories and proverbs. Consequently, several features were identified. First, the combinations of animals in similar comedic stories and proverbs among Korea, Japan and China show a difference in point of view. Korean focuses on the difference of the two animals, but Chinese and Japanese focus on the differences in value and level. Second, the method of anthropomorphization is relatively more developed in China and Japan than Korea. The combinations of animals of Chinese comedic stories and proverbs particularly in the field of anthropomorphization, are most focused on age and sex of the animal. The animal's age or sex remains mostly undetermined in Korean animal's proverbs, unlike Chinese proverbs. On the other hand, two animals in Japanese comedic stories and proverbs are usually of the male and female gender from. Third, the combinations of animals of Chinese and Japanese focus on the animal's body and its characteristics of action. Chinese and Japanese combine the characteristics of the two animal's bodies and actions. This feature apparently caused the resultant combinations of the animal's body parts, for example, the Dragon. Understanding of the combinations of two animals is a good portal into the features of East Asian culture sphere.

A Study on the Introduction of Food Safety Damage Relief System (식품안전 피해구제제도의 도입방안에 관한 연구)

  • Lee, Byung-Jun
    • Journal of Arbitration Studies
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    • v.27 no.4
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    • pp.199-222
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    • 2017
  • Currently, many punitive damages (or statutory damages) and class action laws are discussed in relation to the consumer damage relief system. It is in the background of the argument that the introduction of such a victim relief system will solve many small and large consumer damages. There are many cases in which the punitive damages compensation or the class action system are introduced in relation to the food safety damage naturally. Although the introduction of such a system can clearly help the consumer to relieve large-scale damage, it can not solve all the problems at once because the company can reject the system despite the introduction of such a system. In particular, class action lawsuits should have the same type of damage, but most of the damage caused by food safety is accompanied by physical harm, resulting in various complications such as the physical characteristics of the victim, the health environment. The class action system may not provide a solution in that the content and type of the damage may be different. In this regard, this study aims to investigate the introduction of the food safety damage relief system through the introduction of an administrative dispute settlement system by an administrative agency that occupies an absolute position in the existing consumer protection from this point of view. In reality, the Food and Drug Administration, which is the largest among government agencies related to food, operates a passive attitude consumer protection system such as function like guidance, supervision and surveillance. And it is necessary to make a complementary proposal. In the current law, there is only a small part of the consumer protection work that is positively legal, and even after the damage is scientifically identified, it is not possible to present the solution to the damage suffered by the consumer through legislation. This is a fact that has been raised. In this paper, we propose a reasonable and rapid disaster relief procedure through a separate mechanism within the administrative agency, which is the administration agency, that the dispute settlement procedure due to food safety damage is insufficient by solving the case through the court through counseling, dispute adjustment and civil proceedings. In order to solve the problem of food insecurity and the food industry, various ways of rational solution of the problem were considered. The possibility of (1) Establishment of a food safety dispute resolution committee; (2) Establishment of a food safety disaster relief committee; and (3) Establishment of a food safety disaster relief committee was discussed. In addition, a plan for the creation of a food damage compensation fund was also proposed.

Sustainable Livestock Production in Hill and Woodland (산지에서의 환경친화형 조사료변산과 이용)

  • 김태환;성경일;김병완
    • Proceedings of the Korean Society of Grassland Science Conference
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    • 2002.09b
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    • pp.131-156
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    • 2002
  • Although economically viable, the livestock industry is currently facing a number of challenging environmental problems and highly complex social issues, many of which are related to its size and geographically concentrated nature. Increased emphasis on environmental quality has also placed new demands on livestock producers to ensure that their production practices are in harmony with natural environment. In terms of sustainable agricultural systems, ruminants have served and will continue to serve a valuable role. They are particularly useful in converting vast renewable resources from rangeland, pasture, and crop residues or other by-product into food edible for human. With ruminants, land that is too poor or too erodable to cultivate becomes productive. Also, nutrients in by-products are utilized and do not become a waste-disposal problem. In Korea, however, native and dairy cattle production is not consistent with the advantageous roles of ruminant livestock in sustainable agricultural system because imported feed grains become the main basis for cattle raising. At present the ruminant livestock producers are heavily concentrated in and around the urban areas. About 75% of all the nation's cattle herds are kept on the outskirts of urban areas. As a result, the amount of pasture and forage land available per head of cattle is generally small. Furthermore, animals are raised in a cattle shed with high density. This situation is rather unfavorable for the national economic and environmental points of view As nation income increased, the demand for livestock products grew at an unforeseeable pace. But the pasture area involving in current utilization is tended to decrease during recent years. Based on the above figures more than 250,000 ha of pasture ought to be available for the present herd of cattle. It is obvious that these needs can scarcely be met with arable lands. Lands area for the establishment of new grassland have to be found in the hills and mountains which have not yet been used for crop framing or livestock. The development of extensive grasslands in the hill and woodland areas is now a declared aim. The starting point of the present work is the lack of knowledge of forage production and utilization in hill pasture and woodland in spite of indispensable necessity for livestock production in Korea. The importance of pastoral system in hill region and woodland is particularly emphasized in a standpoint of sustainable livestock production. Main chapter comprises the principle and techniques applicable for improving the utilization of hill pasture and woodland. We finally discussed the problems to solve and future works for a successful livestock production in hill and mountainous area in Korea.

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Evaluation on the Quality of Research Field with Traditional Herbal Prescriptions for Dementia Therapy (치매 치료용 한약 처방의 연구성과에 대한 정성평가)

  • Heo, Eun-Jung;Kang, Jong-Seok;Kang, Hyung-Won;Jeon, Won-Kyung
    • Journal of Oriental Neuropsychiatry
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    • v.23 no.1
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    • pp.93-114
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    • 2012
  • Objective : This study aimed to review the performance of traditional herbal prescriptions for treating dementia and present a strategy for research on dementia therapy utilizing herbal medicine. Methods : A definition was made to clarify the technology regarding the development of herbal prescriptions for treating dementia. The queries were compounded based on the initial keywords provided by experts in the field, then applied to the Web of Science database search engines from January 1986 to September 2011 to search related scientific articles. Before performing the analysis, papers were extracted from the initial search reviewed by experts and 80 articles were selected. Then, the selected papers were analyzed in terms of publish year, country, and type of herbal prescriptions. Furthermore, the research performance evaluation for treating dementia by herbal prescriptions was also created in terms of country and organization based on forward citation analysis. In addition to, for the evaluation regarding research quality, we classified and reviewed papers into two types: clinical studies and experimental studies. Results : According to the quantitative information analysis of 80 articles, the number of papers has increased by 21.9% per the yearly mean from 1995, and Japan had the largest portion within this research field. There were 34 kinds of traditional herbal prescriptions, among them Ukgansan had the highest number of studies followed by Jodeungsan, Dangkisoosan and so on. In addition, quality index as calculated by cites per paper is higher than average in Switzerland, Turkey and Japan. In the view of the evaluation on quality there were 12 clinical studies, 8 RCT reported that herbal prescriptions had efficacy at cognition, behavioral & psychological symptoms (BPSD) and activity of daily life (ADL) in various type of dementia. In experimental studies most of the studies were performed using animal models. The studies using Ukgansan were aimed at improving BPSD. The papers studied with Jodeungsan and Dangkisoosan targeted vascular dementia. Conclusions : In this study, research to develop traditional herbal prescriptions for treating dementia has the potential to improve symptoms since herbal medicines work as both multi-function and multi-target in dementia with multiple pathological or neurotoxic pathways. Therefore, the results of the research should be used in order to establish strategies to develop technology for treating dementia with traditional herbal prescriptions in the future.

Stem Cells and Cell-Cell Communication in the Understanding of the Role of Diet and Nutrients in Human Diseases

  • Trosko James E.
    • Journal of Food Hygiene and Safety
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    • v.22 no.1
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    • pp.1-14
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    • 2007
  • The term, "food safety", has traditionally been viewed as a practical science aimed at assuring the prevention acute illnesses caused by biological microorganisms, and only to a minor extent, chronic diseases cause by chronic low level exposures to natural and synthetic chemicals or pollutants. "food safety" meant to prevent microbiological agents/toxins in/on foods, due to contamination any where from "farm to Fork", from causing acute health effects, especially to the young, immune-compromised, genetically-predisposed and elderly. However, today a broader view must also include the fact that diet, perse (nutrients, vitamins/minerals, calories), as well as low level toxins and pollutant or supplemented synthetic chemicals, can alter gene expressions of stem/progenitor/terminally-differentiated cells, leading to chronic inflammation and other mal-functions that could lead to diseases such as cancer, diabetes, atherogenesis and possibly reproductive and neurological disorders. Understanding of the mechanisms by which natural or synthetic chemical toxins/toxicants, in/on food, interact with the pathogenesis of acute and chronic diseases, should lead to a "systems" approach to "food safety". Clearly, the interactions of diet/food with the genetic background, gender, and developmental state of the individual, together with (a) interactions of other endogenous/exogenous chemicals/drugs; (b) the specific biology of the cells being affected; (c) the mechanisms by which the presence or absence of toxins/toxicants and nutrients work to cause toxicities; and (d) how those mechanisms affect the pathogenesis of acute and/or chronic diseases, must be integrated into a "system" approach. Mechanisms of how toxins/toxicants cause cellular toxicities, such as mutagenesis; cytotoxicity and altered gene expression, must take into account (a) irreversible or reversal changes caused by these toxins or toxicants; (b)concepts of thresholds or no-thresholds of action; and (c) concepts of differential effects on stem cells, progenitor cells and terminally differentiated cells in different organs. This brief Commentary tries to illustrate this complex interaction between what is on/in foods with one disease, namely cancer. Since the understanding of cancer, while still incomplete, can shed light on the multiple ways that toxins/toxicants, as well as dietary modulation of nutrients/vitamins/metals/ calories, can either enhance or reduce the risk to cancer. In particular, diets that alter the embryo-fetal micro-environment might dramatically alter disease formation later in life. In effect "food safety" can not be assessed without understanding how food could be 'toxic', or how that mechanism of toxicity interacts with the pathogenesis of any disease.

Ideological Background the Garden of Mus$\bar{o}$ Soseki (무소 소세키(夢窓疎石)가 작정한 정원에 나타난 사상)

  • Choi, Mi-Young;Hong, Kwang-Pyo
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.31 no.4
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    • pp.123-128
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    • 2013
  • This study was performed with an aim to examine the inner thoughts of Muso Soseki through his works. In this study, we reviewed currently existing Mus$\bar{o}$ Soseki. Works in which his idea or intention behind his works are to be understood in terms of landscaping science or religious perspective. Targeting his best representative works of temple gardens such as Jochou-ji, Eiho-ji, Zuisen-ji, Tenryu-ji, it was sought his view of gardening and technique of garden making. Those temples, selected as target of this study, have significance as a places to have started his learning till matured of his thought into his gardening works. What we need to concentrate and think about regarding the works of Muso is the fact that we are to be impressed upon just looking at his works. The study result indicates that Muso not only symbolized his various mastered ideas & philosophies into spatial configuration into the garden based on Zen Buddhism idea, but also accomplished the Sabi-gardening beauty. Through his writing "Mongjoongmundap(夢中問答)" that is created using his core thoughts, his works can be understood better. This study has significance in that the idea. It could be understood that Muso's work is rooted in the basic idea of three ideas. The first of it is Zen philosophy being indicated in his configuration of gardening such as Zen meditation Stone, cave, chamdo etc. The second of it is shown as the merciful heart of Sangguboje(上求普提), Hahwajoongsaeng(下化衆生), being indicated in his configuration of gardening such as the pond And finally, there appears the Tao idea. Taoist thought has become of where the background space.

The Understanding of Folktales for Developmental Approach of Literary Therapy (문학치료의 발달적 접근)

  • Cho, Eun-sang
    • Journal of Korean Classical Literature and Education
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    • no.37
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    • pp.151-184
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    • 2018
  • The purpose of therapeutic approach of humanities, including literary therapy, is ultimately encourage the growth and the development of human being rather than the development of therapeutic techniques for eradicating symptoms. This paper is noteworthy as to the fundamental work for using folktales at therapy sessions. It may be argued that therapy is the process of searching clients' own development history and accepting current challenges in relation to overall context of their own lives and this may lead to the growth clients. In this regard, this paper attempts to set up the selection criteria for folktales to be effectively applied in therapy sessions. The author of the paper argued in her previous paper that folktales may be effective in terms of self-understanding of clients. Folktales can assist clients regarding the objectification of their issues by projecting and exposing their problems. Therefore, this paper argues the method for selecting proper folktales to stimulate of clients" developmental challenges and ultimately to expose them. The first groundwork for this is understand contents of folktale as to general problems of life and view it as the development of one's entire life. The challenge of client is personal and unique but at the same time it is problems of general development process. The author examines the need for developmental approach of literary therapy and attempts to compose a classification framework for understanding folktales as to developmental process. This may use at literary therapy sessions to select proper folktales based on clients' complaining issues and their developmental age. The criteria also can be used as the basis of clients" reaction on folk-tales.

A Comparative Study on Locke and Humboldt's Concept of Language - Centered on the Relationship of Language and Thought (J. 로크와 W. v. 훔볼트의 언어개념 비교연구 - 언어와 사고의 관계 문제를 중심으로)

  • Bae, Sang-sik
    • Journal of Korean Philosophical Society
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    • v.119
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    • pp.141-172
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    • 2011
  • This thesis, centered on J. Locke and W. v. Humboldt's concept of language, is written for the purpose of illuminating their view of language and investigating the relationship between a matter of language and that of thought. First, Locke considers language was to be the great instrument and common tie of society. And language consists of words, and words are signs of ideas. Locke's discussion in language is shaped by his belief that these conditions of the transference of knowledge were in his time commonly unsatisfied, especially in two domains. First, there was no agreed classification of 'substance' based on careful observation and experiment. Second, the ideas associated with the names of mixed modes often varied both in the usage of different people and in that of the same person at different times. But Humboldt deals with 'the diversity of the structure of human language' and deals with it in respect of 'its influence on the spiritual development of mankind.' According to his theory, a language is not work(ergon) but an activity(energeia). Its true definition may therefore only be genetic. It is after all the continual intellectual effort to make the articulated sound capable of expressing thought. In short, he conceives of language as a particular 'intellectual effort'.