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The study of analysis of mutagen in drinking water (음용수 중 변이원성 물질(MX)에 관한 연구)

  • Yoo, Eun-Ah;Won, Jung-In
    • Analytical Science and Technology
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    • v.19 no.4
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    • pp.290-300
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    • 2006
  • Disinfection by-products(DBPs), such as volatile trihalomethanes and the nonvolatile organochlorine acids, created by chlorination have been extensively studied. However MX which contributes 20-50% of the mutagenic activity in drinking water began to people's attention since 1990. Its chemical name is 3-chloro-4-dichloromethyl-5-hydroxy-2(5H)-furanone. According to WHO guidelines its concentration should be controlled, but its value has not been set up. Due to analytical difficulties in measuring this compound at such a low concentrations and lack of information on toxicity to human. Because concentration (ng/L) of MX in drinking water is low traditional testing methods are ineffective. Therefore this study compared LLE and SPE and have chosen SPE to improve preconcentration. MX has been identified in chlorinated drinking water samples in several countries but not in korea Therefore this study analyzed concentration of MX in different water sources and in spring water. This study examined the causes of changing MX content. Chlorine dosage, seasons, water temperature and distance from the source was all discoverd to be relavant. MX was analyzed in various treatment to find optimum disinfection methods. The outcome was that the concentration of MX was minimized when using biological activated carbon-O3 and granular activated carbon.

The Taoist Ideology of Psychoanalytic Psychology and the Future Development Trend of Art Therapy (정신분석 심리학의 도교사상과 예술치료의 미래 발전 트렌드)

  • Li Huisshu
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.2
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    • pp.437-444
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    • 2023
  • With the development of modern society, society provides people with a quick and convenient life, but it also causes anxiety, depression, other psychological and mental illnesses, so art can also be used as a way and path to treating psychological disorders. Art therapy is a creative method of delivery used in therapy, resulting from the fusion of art and psychotherapy. Art is a service and public art activity, mainly aimed at solving human psychological problems, providing nonverbal expression and communication opportunities, and treating psychological and psychological entanglement by improving emotion, stability, and indirectly inappropriate behavior through multi-disciplinary convergence. Art therapy, as an independent discipline, began in Europe in the 3rd and 40th centuries and was mainly influenced by two psychologists, Sigmund Freud and Carl (Gustav Jung). We Starting with the theoretical foundation of psychoanalysis, this paper explores the effectiveness of modern people's psychotherapy, analyzes the similarities between the two ideas, explores the application of art therapy and the development of science and technology, and provides the public with various ways of art therapy and the validity of science and technology.

Preparation of cobalt oxide(Co3O4·CoO) ultra fine particles using cobalt(II) chloride hexahydrate and crystalline cellulose as a starting materials (Cobalt(II) chloride hexahydrate와 결정성 셀룰로오스를 출발물질로 사용한 산화코발트(Co3O4·CoO) 초미세입자의 합성)

  • Soo-Jong Kim
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.3
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    • pp.587-592
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    • 2023
  • Cobalt oxide (Co3O4·CoO) ultra fine particles were synthesized by liquid phase precursor method. cobalt(II) chloride hexahydrate (CoCl2·6H2O) was as a starting material. A plant-derived crystalline cellulose was used as impregnating materials. A impregnated precursor was calcined at a temperature of 350 to 900℃ to obtain cobalt oxide particles having a particle size of 1 to 10㎛. The crystallization process and morphology according to the calcination temperature were examined, and the properties of the synthesized powder were evaluated using SEM and XRD. It was confirmed that a crystal phase of Co3O4 began to form around 350℃ and crystal growth occurred up to 900℃. At a temperature above 500℃, the Co3O4 crystal was changed to another crystal phase CoO.

A Study on the Vegetables Mentioned in the Bible (성서에 언급된 채소류에 관한 연구)

  • Woo, Ja-Won
    • Journal of the Korean Society of Food Culture
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    • v.22 no.1
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    • pp.1-9
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    • 2007
  • This paper is intended to study what kinds of the vegetables are mentioned in the Bible and how they were used in those days. While one hundred and twenty-eight different plants are mentioned in the Bible, there are today 2,384 plant species in modem Israel, most of which have been introduced in recent centuries. These plants obviously did not exist there in biblical times and were only recently introduced from Australia and South America, respectively. This article will study only the vegetables mentioned in the Bible and known to have existed in the old and new testament times. Since the first book devoted exclusively to biblical botany was that of Levinus Lemmens in 1566, the modem systematic study of biblical plants, began with F. Hasselquist, a student of Linnaeus, the founder of modem botany. In 1928, Immanuel Loew approached the subject differently, reviewing all known data pertaining to biblical plants. His work not only discussed biblical plants, but also plants in later Jewish literature, particularly the Talmud. The British scholar G. E. Post provided a broad field study of modem plants in Palestine, Syria, Lebanon, and Jordan. More recent major treatments of the subject include those of A. and H. Moldenke (1952), M. Zohary (1982), N. Hareuveni (1984), and Y. J. Choi(1996). Today, articles on specific biblical plants listed in the Bible can be found in any number of encyclopedias. This study attempts to provide a synthesis of the work of a number of scholars who studied the vegetables and plants mentioned in the Bible. As a preliminary study on the culture of food in the biblical period, this study has focused on the identity and features of the vegetables of the Bible. In only a limited number of instances, because of the paucity of the informations and the broad and generic descriptions of the plants, we can't be certain about the identification of the vegetables named in the Bible. In many instances the traditions established by the Greek, Aramaic, and English translations are helpful, although sometimes they are misleading. This paper subdivides the vegetables into broad areas, the general vegetables and the flavoring herbs. Vegetables formed very important part of the diet in the biblical times. Two main types were used: those whose nutritious seeds could be easily stored and those which were eaten freshly gathered from gardens. Pulse seeds provided a useful source of vegetable protein, while fresh green vegetables were vitamin rich. Pulses could be eaten boiled, or their dried seeds could be ground up into flour and then made into nutritious soups. Fresh vegetables were eaten either raw or lightly cooked, usually by boiling in water. The general vegetables in the Bible are herbs(garden rocket), cucumber(snake cucumber), watermelon, leeks, chicory, and onions. Also the flavoring herbs in the Bible are rue, dill, cummin, black cummin, frankincense, cinnamon, cassia, myrrh, black mustard, coriander, mint, saffron, ginger grass, syrian hyssop, aloes(eagle wood), manna which have the flavor, aroma, and medical values.

Morphological Development of Eggs, Larvae and Juveniles of Trident Goby, Tridentiger brevispinis (Pisces: Gobiidae) (민물검정망둑 Tridentiger brevispinis의 난발생 및 자치어 형태발달)

  • Jae Min Park;Kyeong Ho Han
    • Korean Journal of Ichthyology
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    • v.35 no.1
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    • pp.10-19
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    • 2023
  • This study aimed to examine the early life history of Trident goby (Tridentiger brevispinis) by observing their egg development and juvenile fish morphology. The average size of mature eggs was 1.13~1.41 (1.30±0.07) mm (n=30), and 0.70~0.86 (0.79±0.04) mm (n=30) in long diameter and short diameter, respectively. The incubation period at 24±1℃ ranged from 167~228 h. The newly hatched larvae measured 2.31~2.78 (2.51±0.18) mm (n=30) in total length (TL), and their mouth and anus were not yet open. At 3 days after hatching, the preflexion larvae reached 2.84~3.10 (2.98±0.10) mm in TL, where in their yolk absorption was complete and their mouths began to open. At 19 days after hatching, the larvae reached the flexion stage, measuring 4.02~4.62 (4.36±0.19) mm in TL. The tip of their notochord was bent upward. At 30 days post-hatching, the larvae reached the postflexion stage, measuring between 5.04~6.36 (5.76±0.51) mm in TL, with the tip of the caudal fin bent at 45°. After 54 days, the larvae had reached the juvenile stage, measuring between 7.43~9.84 (8.48±0.90) mm in TL, and were differentiated by their constant number of fins (6 first dorsal, 12 second dorsal, 11 anal, and 10 ventral fins). This study found that T. brevispinis had larger fertilized eggs and a greater number of myotomes in hatching larva than similar species. Additionally, the distribution of melanophores in T. brevispinis was distinct from that in other similar species, making it easy to distinguish them morphologically.

Philosophical Counseling and Feminist Counseling (철학상담과 여성주의상담)

  • Nho, Soung-Suk
    • Women's Studies Review
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    • v.26 no.1
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    • pp.3-39
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    • 2009
  • Philosophical counseling, established by Achenbach in 1981, began as "philosophical practice" and emerged only recently as a new field of philosophy in its own right. It attempts, by recasting the philosopher as a counselor, to bring philosophy back from academia and recover the ancient notion of "doing philosophy," in a real-life context. Furthermore, it allows clients who are at a critical moment in their life a chance to revive their authentic selves and empowers them to pursue their own path. By engaging with philosophical counseling, clients are more likely to realize their hopes for their lives by examining their lives thoroughly and facing them anew. This paper first attempts to investigate philosophical counseling services for Korean women and to outline a new model of counseling based on the combination of two models of counseling, philosophical counseling and feminist counseling. In the second chapter, it seeks to introduce the history and characteristics of philosophical counseling and in the third chapter, the history and characteristics of feminist counseling are investigated, focusing on a counseling-activity entitled "Telephone for Women." Finally, in the fourth chapter, a comparative study is made by identifying the common aspects of each counseling type, in order to promote the shared outlooks of both counseling models. Although these two models of counseling emerged from different historical, social, and cultural contexts, they were founded according to four common beliefs, which are as follows: first, a focus on the importance of "practice," second, the establishment of an equal relationship between the counselor and the client, third, the importance of counselors listening attentively to the client and opening themselves up, fourth, the encouragement of clients becoming truly themselves and self-educated. Therefore, the writer believes that these two models of counseling are both aiming at the realization of an authentic "human life." It is hoped that philosophical counseling will give Korean women an opportunity to maintain a dialogue that will improve their "well-being" in the future.

Female Development in Nineteenth-Century England and Dynamics of the Bildungsroman (19세기 영국 여성의 "성장"과 성장소설의 역동성)

  • Oh, Jung-Hwa
    • Women's Studies Review
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    • v.29 no.2
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    • pp.3-35
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    • 2012
  • This paper attempts to examine complicated relations which the nineteenth-century English novel of female development has with the Bildungsroman genre, and to discuss that the story of female development effectively realizes the potential dynamics of the genre. It looks into the history of discussions on the Bildungsroman which began at the end of the nineteenth-century in Germany and developed among twentieth-century Anglo-American critics, and those on the female development which didn't start until feminist criticism ventured out at the end of 1970s, and have developed into various perspectives ever since in accordance to the progress of feminist criticism. In general, Bildungsroman criticism considers that it portrays the process how the protagonist develops self and achieves an accommodation with society. However, this paper points out that the Bildungsroman is the narrative form which represents conflicts between self and society caused by idealizing the infinitive possibility of self-determination while simultaneously presenting the limited goal of social integration. It argues that the subversive dynamics of the genre can give full play to its potential when it reveals contradictions and tensions between individual subjectivity and integration into society and connects them with criticism of political and social structures. It is the stories of female Bildungshelds depicted by nineteenth-century female writers that exquisitely embody the subversive potential of the Bildungsroman. They acutely experience alienation from society where independency or autonomy is fundamentally impossible because the ideology of separate spheres does not allow them to live a meaningful life economically and sociologically outside the marriage. An example of a female Bildungsheld whose conflicts between development of self and integration with society are doubled by gender is Jane Eyre. Jane Eyre is a representative Bildungsroman with subversive dynamics, which tells the story of female development but splits itself through various techniques inserting contradictory and opposite meanings, thus resignifying female development and questioning social and political structures.

Analysis of Characteristics of Corporate Advertisements in TV and Digital Video Advertisements - Focusing on corporate advertisements from 2020 to 2021 (TV 및 디지털 영상광고에서 나타난 기업광고 특성 분석 - 2020년부터 2021년 기업광고를 중심으로)

  • Um, Namhyun
    • The Journal of the Korea Contents Association
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    • v.22 no.8
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    • pp.149-158
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    • 2022
  • For this study, a total of 297 TV advertisements and digital video advertisements were selected as analysis targets among domestic corporate advertisements executed for two years from 2020 to 2021. As a result of the content analysis, it was found that CSR public service advertisements, CSV advertisements, and ESG advertisements in 2020, when the corona pandemic began in earnest and ESG of companies emerged as a business management topic, showed a markedly higher execution frequency than in 2021. As a result of examining the distribution of corporate advertisement types by media, it was found that companies were executing various corporate advertisements through digital media rather than traditional media such as TV. As a result of examining the advertising appeal strategies according to the types of corporate advertisements, it was found that the emotional appeal strategy was most frequently used among the rational appeal, emotional appeal, and mixed appeal as a whole in corporate advertising. As a result of analyzing the advertisement model types according to the classification of corporate advertisements, it was found that corporate advertisements use a general model differently from brand advertisements. Lastly, as a result of examining the distribution of advertisement model types according to media types, it was found that the celebrity model is more frequently used in TV advertisements for digital advertisements.

The Cultural Meanings of the first optical insturment, Camera obscura, in the pre-modern Age (최초의 영상기구, 카메라 옵스쿠라의 문화사적 의미)

  • LEE, Sang-Myon
    • Korean Association for Visual Culture
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    • v.16
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    • pp.131-161
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    • 2010
  • This thesis investigates the cultural meanings of the first optical instrument, Camera obscura, in the pre-modern age, while it explains the development as well as the use of the Camera obscura in Europe and Korea. For this purpose the thesis traces the significant phases of the historical developments of the Camera obscura from L. da Vinci, G. B. della Porta, D. Barbaro, A. Kircher to J. Zahn etc. The Camera obscura was not only the symbolic instrument of the modernism in the sense that human being wanted to observe the outer world by himself and to be freed from the viewpoint of the christianity, but also was the forerunner of the modern visual culture, because it first time reproduced the artificial image of the natural world. Since the second half of the 17th century the box-type reflex Camera obscura had been produced, it began to be used as aid to drawing for painters like J. Vermeer, A. Canaletto and J. Reynolds etc. throughout Europe. It tells the evidence of the close relation between art and technology in the pre-modern age. Around the end of the 18th century the Camera obscura was brought to Korea, the closed country of the Fareast, by the scholars of the so-called 'Realist school' (Silhak-pa) who went to Beijing to acquire knowledges on the Western science from the European priests. In 1780s Yak-yong JUNG, one of the representative scholars of the Realist school, experimented the Camera obscura, and then, it was used for sketches of higher aristocrats' portraits by the supreme portrait painter of that time, Myoung-ki LEE. Those were possible only under the reign of the culturally liberal and reformative King, Jung-jo (ruled 1776-1800), and after his retreatment the inquiry of the Camera obscura had been dimished. It is not a historical coincidence that the Camera obscura could be examined and used in the period of the Enlightment both in Europe and Korea.

The Principle of Moving Image and the Development of the Optical Instruments in the 19th Century - On the Theory of Afterimage Effect and the Scientific Development of Moving Image - (동영상의 원리와 19세기 시각기구의 발전과정 - 잔상이론과 동영상의 과학적 발전에 대해 -)

  • LEE, Sang-Myon
    • Korean Association for Visual Culture
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    • v.19
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    • pp.189-221
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    • 2012
  • This thesis investigates the development of optical instruments in the 19th century, before the birth of the cinema, and the principle of the perception of moving images. For this purpose it traces the development stages of the optical instruments which demonstrated 'illusion of movement' from 1820s when the 'persistence of vision' had begun to be researched by scientists. Then, it examines the theory of the 'persistence of vision' or 'afterimage effect' known as the principle in the perception of illusion of movement produced from moving images. The optical instruments in the 19th century that presented the illusion of movement began with the Thaumatrope (double-sided picture disc), and appeared from the Phenakistiscope/Stroboscope (revolving disc), the Zoetrope (revolving drum) and the Praxinoscope (mirror-reflexive revolving drum), and in 1892 the Projection-Praxinoscope presented firstly the moving pictures (animation) on the screen. According to the research of psychology and physiology in the early 20th century it has been recognized that the 'afterimage effect' theory is not sufficient to explain the perception of illusion of movement from the moving images which is closely related to the particularity of the visual perception system of the human eyes. Since then, the Phi-phenomenon suggested 1912 by the Gestalt psychologist, Max Wertheimer (1880-1943), is regarded as the most persuasive theory until now, although it is still imperfect.