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      • 반려동물의 기생충검사 이론 및 실제

        이성호,박영석,박병권,김상기,정지윤,박수진,박창식,김병수 충남대학교 형질전환복제돼지연구센터 2007 논문집 Vol. No.10

        The aim of this article is to improve human health and that of companion animals by improving the diagnosis and control of parasitic diseases. This is achieved by research into parasites of veterinary significance including zoonoses and the use of comparative systems to increase our understanding of some human parasitic diseases. We should promotes learning and teaching through knowledge and operates a diagnostic unit that offers a service to pet owner for indigenous and exotic parasitic diseases of companion animals. We must diagnose and treat them early. Zoonotic parasites are very important because many of animal parasites are zoonoses and give pain and death to human. Parasites are divided Protozoa, Helminthes and Arthropods. There are many protozoa, about 65,000 species. Arthropods are the vector of another diseases, such as virus, bacteria, protozoa and nematodes. Helminthes are composed of Trematoda, Cestoda, Nematoda and Acanthocephala. The target of Veterinary Parasitology is to recognize the characteristics of these parasites and subsequently diagnose, treat and control them. This article is intended to familiarize you with the essential facts and concepts of companion animal parasitology. Emphasis is placed on fecal sample techniques (comparison of fecal examination techniques; frequently found artifacts in fecal smears; direct Smear; zinc sulfate flotation; etc.) We recommend that the study be done to more references on animal parasites.

      • Yield of Rice Affected by Meteorological Elements in Yeosu Area of Korea

        Kwon,Byung-Sun,Choi,Seong-Kyu,Shin,Jeong-Sik,Shin,Jong-Sup,Shin,Dong-Young,Hyun,Kyu-Hwan,Kuk,Yong-In,Park,Hee-Jin 한국자원식물학회 2003 Plant Resources Vol.6 No.2

        This study was conducted to investigate the relationships between yearly variations of meteorological elements and yearly variations of productivity in rice. In addition, correlation coefficients among yield and yield components were used to find out the relationships between meteorological elements and productivity. Yearly variation of the mean air temperature in May was large with coefficients of variation(C.V.) of 25.0%, but the variation of the duration of sunshine in May were relative small. No. of panicles per hill and 1,000 grains wt. of brown rice were great with C.V. of 21.1, 19.7%, respectively, brown rice yield show more or less C.V. of 5.5% and milled rice show still less variation. Correlation coefficients between temperatures in period of cultivation from May and yield were positive correlations. Correlation Coefficients between precipitation in period of cultivation from Sep. to Oct. and yield are positive correlations. Correlation coefficients amount the panicle length, no. of panicles, no. of spikelets, ratio of ripened grains, 1,000 grains wt. of brown rice, milled rice yield, brown rice yield and milled rice yield were positively significant at the level of 1 %, respectively.

      • KCI등재후보

        GMS-5 가시영역 자료를 이용한 해면 일사량 추정

        박경원,권병혁,김영섭 한국지리정보학회 2003 한국지리정보학회지 Vol.6 No.2

        해상에서 1997년 1월부터 12월까지 맑은 날과 구름이 많은 대기상태에서 GMS-5에 장착된 VISSR(visible and infrared spin radiometer) 자료를 이용하여 5㎞×5㎞ 격자의 공간 분해능에서 태양복사를 추정하였다. 섬에 설치되어 있는 기상청의 pyranometer 자료로 추정 일사량을 검증하였다. 추정된 시간별 일사량의 RMSE(root mean square error)는 104W/㎡이고, 상관계수는 0.91이었다. 한반도 부근의 해상에서 조사된 시간별 태양복사의 최대값은 황해와 동해에서 6월에 나타나고, 남해에서는 8월에 나타나는데, 이는 6월에 저기압과 전선에 의한 기상 악화에 기인한다. Surface solar radiation over the sea is esitimated using the visible and infrared spin scan radiometer (VISSR) data onboard Geostationary Meteorological Satellite (GMS)-5 from January 1997 to December 1997 in clear and cloudy conditions. The hourly insolation is estimated with a spatial resolution of 5km×5km grid. The island pyranometer operated by the Japan Meteorological Agency(JMA) is used to validate the estimated insolation. The root mean square error of the hourly estimated insolation is 104W/㎡ with 0.91 of the correlation coefficient. In the variability of the hourly solar radiation investigated around the Korean Peninsula, the maximum value of solar radiation is hound in June at the Yellow Sea and the East Sea, while in August at the South Sea because of low pressure conditions and front in June.

      • Effect of Fertilizer Levels on Growth Characters, Dry Matter Yield and Nutrient Quality of Forage Rape in Spring Sowing

        Kwon,Byung-Sun,Shin,Jeong-Sik,Shin,Dong-Young,Hyun,Kyu-Hwan,Park,Hee-Jin,Sin,Jong-Sup,Seong-Kyu 한국자원식물학회 2003 Plant Resources Vol.6 No.2

        To find out the optimum fertilizer level for high yielding variety, Velox, experiment was conducted with 15 compositions of fertilizer levels at the experiment field of forage crop in Sunchon National University from Mar. 2000 to Aug. 2000. The effects of nitrogen fertilizer on plant growth were significant but increasing rate of application in potassium and phosphate fertilizers above 6 kg/a had negligible effects on plant growth. The optimum nitrogen application level of fertilizers turned out to be 16-6-6 kg/l0a of N-P2O5-K5O. Content of crude protein was highest and that of crude fiber such as NDF, ADF, cellulose and lignin were lowest at this rate of fertilizer application. Furthermore, IVDMD was high and dry matter yield were highest at the optimum raterate

      • KCI등재
      • 중소기업의 물류정보시스템 품질 평가에 관한 연구

        박병권,임채관 동명정보대학교 2002 사이버 비지니스 Vol.1 No.-

        The purpose of this study is to evaluate small firms' LIS(logistics information system) and logistics service quality using theoretical model for evaluation of information system and the empirical data of firms. In this study, structural equation model analysis was established for verifying the relationships among the study variables. After examining hypotheses based on the collected data through the survey, all hypotheses were accepted with the statistical significance. The study results showed that the firms' logistics management function influenced on the logistics information system positively, and that logistics information system in turn influenced on logistics service.

      • 간암세포에서 저산소증에 의해 유도되는 VEGF의 발현기작에 대한 연구

        권유욱,배수경,김정애,김규원,박병채 영남대학교 약품개발연구소 1997 영남대학교 약품개발연구소 연구업적집 Vol.7 No.-

        Puropse: Hepatocellular carcinoma (HCC), a typical hypervasculized tumor is very sensitive to hypoxia and vascular endothelial growth factor (VEGF) has previously been identified to be up-regulated in response to hypoxia in several cell types. However, the molecular mechanisms by which hypoxia is sensed by the cells remain enigmatic. To investigate whether calcium and AP-1 are involved in hypoxia-sensing mechanism, we performed following experiments. Materials and Methods: Hep3B cells were grown in hypoxic condition. To assess cell viability, MTT assay was performed. To investigate the effect of calcium and AP-1, northern blot analysis was performed after treatment with BAPTA/AM. Results: The expression of VEGF was significantly up-regulated by hypoxia in Hep3B, hepatocellular carcinoma cell line. The increased expression of VEGF induced by hypoxia was blocked by the addition of BAPTA/AM, a cytosolic calcium chelator to the media. In addition, we found that the expression of c-jun protooncogene was also up-regulated by hypoxia. Hypoxic increase of c-jun expression was also normalized by the treatment with BAPTA/AM. Conclusion: These results suggest that the increased expression of VEGF by hypoxia is mediated through the calcium and c-jun signalling pathway in the Hep3B human hepatoma cell lines.

      • 보리잎의 色素, 蛋白質含量 및 光系Ⅱ 活性에 미치는 Sulfite의 影響

        權炳奎,鄭華淑,朴基元 慶北大學校 師範大學 1985 敎育硏究誌 Vol.27 No.-

        Sulfur dioxide, a major atmospheric pollutant, influences to photosynthesis and causes some damages such as chlorosis, necrosis etc. When SO_2 enters into leaf tissue through the stomata, it produces H^+, HSO_3^- and SO_3^-2 as it is dissolved in the water of cells. On the basis of a report that sulfite (SO_3^-2) serves as the most toxic material to SO_2 phytotoxicity, we treated sodium sulfite at the indicated concentrations and treatment time to barley leaves. Then the leaf disks were illuminated at 30,000 lux and placed in darkness. This study was carried out to investigate the effects of sulfite on pigments, protein content, and photosystem Ⅱ activity in barley leaves. With sulfite treatement of barley leaf disks, pigment and protein content were decreased in light but not in darkness. The rate of DCIP photoreduction was inhibited in light-dependence of sulfite. It was inhibited to 78% with sulfite (10mM) treatment for 1 hour.

      • 간암세포에서 저산소증에 의해 유도되는 VEGF의 발현기작에 대한 연구

        권유욱,배수경,김정애,김규원,박병채 부산대학교 유전공학연구소 1997 분자생물학 연구보 Vol.13 No.-

        Purpose: Hepatocellular carcinoma(HCC),a typical hypervasculized tumor is very sensitive to hypoxia and vascular endothelial growth factor(VEGF) has previously been identified to be up-regulated in response to hypoxia in several cell types. However, the molecular mechanisma by which hypoxia is sensed by the cells remain enigmatic. To investigate whether calcium and AP-1 are involved in hypoxia-sensing mechanism, we performed following eaperiments. Materials and Methods: Hep3B cells were grown in hypoxia condition. To assess cell viability, MTT assay was performed. To investigate the effect of calcium and AP-1,northern blot analysis was performed after treatment with BAPTA/AM. Results: The expression of VEGF was significantly up-regulated by hypoxia in Hep3B, hepatocellular carcinoma cell line. The increased expression of VEGF induced by hypoxia was blocked by the addition of BAPTA/AM, a cytosolic calcium chelator to the media. In addition, we found that the expression of c-jun protooncogene was also-regulated by hypoxia. Hypoxia increase of c-jun expression was also normalized by the treatment with BAPTA/AM. Conclusion: These results suggest that the increased expression of VEGF by hypoxia is mediated through the calcium and c-jun signalling pathway in the Hep3B human hepatoma cell lines.

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