• Title/Summary/Keyword: Cultural Enrichment

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Experimental Studies on Detection of Salmonellae in Animal-origin Foods by Means of Dirct Fluorescent Antibody Technique (직접형광항체법(直接螢光抗體法)에 의한 축산식품중(畜産食品中)의 Salmonella 균(菌) 검출(檢出)에 관한 실험적(實驗的) 연구(硏究))

  • Jeon, Moo Hyeong;Cha, Youn Ho;Chung, Gill Taik
    • Korean Journal of Veterinary Research
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    • v.14 no.2
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    • pp.243-252
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    • 1974
  • The experiment was performed in order to investigate the applicability of the rapid detection of salmonellae in various animal-origin foods by means of the direct fluorescent antibody technique. Egg, sausage and chicken were inoculated with various concentrations of Sal.paratuphi A, Sal. paratyhi B and Sal. thompson, and the fluorescent antibody technique was applied and compared with the conventional cultura method for the sensitivity of detection of the organisms. Two methods were employed in the fluorescent antibody technique; the direct smear method in which the smear being made directly from the specimens, and the enrichment smear method in which the smear being made from the enrichment broth. The effect of various enrichment time (1,5,8,11 and 13 hours) in tetrathionate broth on the detection of salmonellae in the fluoresent antibody technique was also studied. The results obtained were summarized as followings; 1. Of the three methods, the enrichment smear method of fluorescedt antibody technique was highly effective as cultural method for the detection of salmonella organisms. 2. Direct smear method of fluorescent antibody technique was effective as two other methods $5{\times}10^4$ organisms presented in 50 g(ml) of specimens. This method may not be applicable when the specimens contained $5{\times}10^2$ or less organisms. 3. Of the three specimens, the recovery rate of Salmonella organisms from egg was slightly higher than that of sausage and chicken. 4. In fluorescent antibody technique and cultural method, the specimens inoculated with Sal. thompson were found to be higher detection rate than the specimens inoculated with Sal. paratyphi A, 5. The optimum enrichment time of Salmonella organisms in tetrathionate broth on the detection by fluorscent antibody technique was found to be 11 hours or longer when the specimens of egg, sausage and chicken were inoculated with approximately 500 organisms. The longer enrichment time was the higher detection rate up to 11 hours tested.

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A Study of Cleaning on the Biofilm of Stone Cultural Properties (석조문화재 생물막 제거 및 처리방안 연구)

  • Chung, Yong-Jae;Seo, Min-Seok;Lee, Kyu-Shik;Hwang, Jin-Ju
    • 보존과학연구
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    • s.26
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    • pp.5-25
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    • 2005
  • A consideration number of investigation have begun to elucidate the essential role biological agents play in the deterioration of stone. What is becoming clear is that many factors affect the durability of stone. Physical, chemical, and biological agentsact in co-association, ranging from synergistic to antagonistic, to deteriorate stone. Biodeterioration has usually been considered to be a degradation process following the initial deterioration effects of inorganic agents, especially objects of cultural value such as pagoda, stature of Buddha etc. These agents were thought to condition stone surfaces for microbial contamination due to structural changes and enrichment of inorganic organic nutrient substrates. This report concentrates on the action of biodeteriogens from bacteria to algae and higher plants. Preventive and remedial methods are surveyed, as are a selection of chemical treatments.

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Characteristics and isolation of Listeria spp from poultry meat, products and environmental specimens in chicken slaughterhouse I. Isolation of Listeria spp (도계장 유래 닭고기와 부산물 및 환경재료에서 Listeria spp의 분리 및 분리균의 특성 I. Listeria spp의 분리)

  • Son, Won-geun;Kang, Ho-jo
    • Korean Journal of Veterinary Research
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    • v.31 no.3
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    • pp.271-277
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    • 1991
  • To investigate the epidemiological trait of listeriosis, Listeria spp were isolated from poultry meat, products and environmental specimens in chicken slaughterhouse. Also determined were isolation rates by the different enrichment procedures, the biochemical properties of isolates. In a total of 307 samples including poultry meat, liver, feathers, feces, chiller water, scalding water overflow and slaughterhouse floor, Listeria spp were isolated predominantly from scalding water overflow (90.0%), body skin before washing (66.7%), liver (20.0%) and feathers(15.0%) However, few Listeria spp were isolated from body skin after washing and feces. The higher isolation rates were obtained in the secondary enrichment procedure (7.2%) than in the primary enrichment (3.9%); after stored the secondary enrichment cultures for 2 weeks at $4^{\circ}C$, Listeria spp were present in 9.8%. The majority of the isolated Listeria spp were identical to those of the standards strains in biochemical and cultural properties. Overall, Listeria spp were present in 13.4% of the specimens tested, and were in order of prevalence of L innocua(11.1%), L monocytogenes(3.3%), L grayi(0.7%) and L murrayi(0.3%).

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Natural Background and Enrichment Characteristics of the Stream Sediments from the Hamyang-Sancheong Area (함양-산청지역 하상퇴적물의 자연배경치 및 부화특성)

  • Park, Young-Seog;Park, Dae-Woo;Kim, Jong-Kyun
    • Economic and Environmental Geology
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    • v.42 no.3
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    • pp.195-206
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    • 2009
  • We investigated natural background and enrichment characteristics and predicted geochemical disaster for stream sediments in the Hamyang-Sancheong area. Stream sediments samples were collected 95 ea in study area. The stream sediments were well known that had not possibility of contamination effect and represented drainage basins. We got the major and hazardous elements concentrations by XRF, ICP-AES and NAA analysis methods. Acid decomposition for the ICP-AES has been used $HClO_4$ and HF with $200^{\circ}C$ heating at 1st and after that $HClO_4$ HF and HCl with $200^{\circ}C$ heating at 2nd stage. We could know the characteristics that concentration of Cu and Co decreased when concentration of $SiO_2$ increased in correlation analysis. The enrichment factor of the stream sediments was below 2 in study area. This result indicated that study area belonged to moderate enrichment. The stream sediments of Hamyang area were enriched in order of Pb>Th>Cr>V>Co>Cu and those of Sancheong area were enriched in order of Pb>Th>Cr>Co>V>Cu. The enrichment factor(E.F.) of the Pb, Cr, Co and V was similar between Hamyang and Sancheong area. The enrichment factor of the Th was higher in Hamyang area and that of the Cu was higher in Sancheong area. The enrichment factor of the Pb was highly enriched in all study area than earth crust mean. But we could know that study area was not exposed to the pollution of the Pb through the tolerable level.

Mineralogical and Geochemical Characteristics of Ancient Field Soil in Jeongdongri as Ceramic Raw Materials of the Baekje Kingdom (백제 와전재료로서 정동리 고토양의 광물 및 지구화학적 특성)

  • Jang, Sung-Yoon;Lee, Chan-Hee
    • Economic and Environmental Geology
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    • v.43 no.6
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    • pp.543-553
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    • 2010
  • This study was focused on the mineralogical and geochemical characteristics of field soil of the Baekje Kingdom from K wongbawigol site in Jeongdongri, Buyeo and whether the bricks from Songsanri Tombs and Muryung's Royal Tomb were made of soil from this site. Soil samples show the similar size fraction as a silt loam and acidic soil, whereas some samples have the enrichment of organic matter, P and S. Also, they have similar geochemical behavior of elements and similar mineral phases consisting of quartz, plagioclase, orthoclase, vermiculite, mica and kaolinite. The enrichment of iron oxide is found in some soil layer, including the iron oxide mottling and precipitation along plant roots and they are attributed to repeat oxidation and reduction environments due to flooding and drainage of field soil. It's anthropogenic alteration by human activity. Especially, it is assumed that the concentration of the iron oxides found in bricks from Muryung's Royal Tomb and Songsanri Tombs is the additional evidence that soil in this study is probably the raw materials of those bricks.

A Proposal for Cultural Policy on Convergence of Art and Technology (문화 및 예술 융·복합 지원 정책의 현황 및 과제)

  • KWON, Eun Yong
    • Trans-
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    • v.2
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    • pp.59-73
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    • 2017
  • It was after mid 1990s that convergence of art and technology had become a critical issue and governments set new support system for its enrichment. Since then, the government continues to expand support programs to extend integration of art, culture and other genre including technology because nexus, convergence has regarded important competitive factors in cultural policy. The concept of convergence and complexation in culture and art has been a very attracting issue since it appeared and accordingly various policies are supported. However, there are still numerous issues and problems to be solved along with discussion. This paper summarizes government policies to support convergence and complexation of culture and art in Korea and overseas and looks into their trends and cases and then suggests development of future policies and supporting businesses.

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Development and Application of a Home Economics Teacher Training Program Based on the Cultural & Artistic Aspects of Clothing, Food, and Housing Life and Experience (의식주생활의 문화예술적 측면과 경험을 중심으로 한 가정과교사 직무연수 프로그램의 개발 및 적용)

  • Bae, Hyun Young
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.11
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    • pp.1208-1221
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    • 2012
  • This study was conducted with the budgetary support of the Gyeonggi Provincial Government Department of Education as curriculum preparation (frequently revised since 2007) for the enhancement of teacher professionalism in Clothing, Food, and Housing Life education. This study promotes changes in student learning through the enrichment of Home Economics content and the classroom-learning environment through the reinforcement of teacher professionalism and attitudes towards Clothing, Food, and Housing Life education. This study enhances the comprehension of Home Economics and understanding by educators on the importance of Home Economics. The training program was evaluated through an analysis of the motive of application, level of satisfaction with the program, change in the view of Clothing Life education, and level of expectation and contributions of the program towards the curriculum development of teaching. The trainees were motivated by the opportunity to practice, uniqueness of the curriculum of the training program, and expectations for professional enhancement. The level of satisfaction is very high. Regardless of subjects, trainees recognized the necessity of practical exercise, cultural & artistic approach, and integrated teacher training in Clothing Life education. The teachers of other subjects recognized the importance of Home Economics and the historical background of Clothing, Food, and Housing Life.

Quantitative Analysis and Archaeogeological Interpretation of Stone Implements from the Unjeonri Bronze Age Relic Site (천안 운전리 청동기 유적지에서 출토된 석기의 정량분석과 고고지질학적 해석)

  • Lee, Chan Hee;Oh, Kuy Jin;Lee, Hyo Min;Lee, Myeong Seong
    • Journal of Conservation Science
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    • v.12 no.1 s.15
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    • pp.31-47
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    • 2003
  • The stone implements from the Unjeonri relic sites were studied on the basis of petrology, geochemistry and archaeogeological interpretations. Magnetic susceptibility (MS) of the stone implements were mainly lest than 0.5 $(10^{-3}\;SI\;unit)$, however, stone axe of syenitic rock (2.37), stone axe of schist (0.19) and stone knife of slate (0.11) showed different from the some measured rocks of an outcrop. Geochemical evolution trend of both a stone implement and the surface rock were identical when it a normalization to use the behavior, enrichment, compatibility and incompatibility of the elements. But, some rocks of a axe (schist), a knife (slate), a arrowhead (shale) could not confirm typical occurrence and the distribution area within the Unjeonri site and a radius 10 km. In the Unjeonri site, the stone implements suggest that coexisting two types as domestic- and foreign-type lithic artifacts.

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Dispersion and Enrichment of Potentially Toxic Elements of Farmland Soils from the Boeunjeil Mine Area, Korea (보은제일광산일대의 밭토양에 대한 독성원소들의 분산과 부화)

  • Yoo, Bong-Chul;Kim, Ki-Jung;Lee, Chan-Hee;Lee, Hyun-Koo
    • Economic and Environmental Geology
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    • v.40 no.1 s.182
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    • pp.15-28
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    • 2007
  • The study is for contaminations of major, rare earth and trace elements of the farmland soils from the Boeunjeil mine area. The results are compared with the soils of Chungjoo, Deokpyeong, Boeun and Chubu areas. Fe and S contents of the contaminated area are high relative to those from the uncontaminated areas, Chungjoo and Boeun areas. Trace elements of the contaminated area are high relative to those from uncontaminated area, Chunajoo, Deokpyeong, Boeun and Chubu areas. The trace elements ares divided into Cd, Ni, Sr, U, V, Zn and As, Co, Cu, Mo, Pb, Sb, based on these dispersion and correlation. Two groups show the positive correlation. Enrichment factor of potentially toxic elements from contaminated area is >5 value, but <4 value in the uncontaminated area. In the geoaccumulation index of the minor elements, the contaminated area has >1 value and the uncontaminated area has <1 value except Mn. Enrichment index of potentially toxic elements(As, Cd, Co, Cu, Ni, U, Zn) ranges from 0.3 to 87.0 in the contaminated area and from 0.4 to 3.9 in the uncontaminated area. Overall results show that the high contents of farmland soils for the elements(Fe, S, As, Cd, Co, Cu, Ni, U, Zn) indicate the contamination by coal-related activities.