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오리의 Pasteurella anatipestifer 감염증 발생
최정옥,김경년,Choi, Chung-ok,Kim, Gyoung-nyoun 대한수의학회 1993 大韓獸醫學會誌 Vol.33 No.1
This study was conducted to investigate the cause of a new duck disease occured in southern part of Korea. A meat type duck farm located in Kangjin, Chonnam Province had experienced outbreaks of septicemic disease at around 20 days of age in nearly every batch of ducklings from early spring to early summer in 1989. Main symptoms of the birds were eye and nasal discharge, depression, inappetence, diarrhea and nervous signs such as tremor and ataxia. Some birds died suddenly without any signs. Mortality reached from 20% to 80% in severe cases. The autopsy findings of the affected ducklings revealed consistantly severe airsacculitis, fibropericarditis, perihepatitis and occasionaly enteritis and distended ureter with urate deposit. A rod shaped gram-negative bacterium was isolated purely from brain and liver of the diseased ducks by culturing the specimens on blood agar for 48 hours in candle jar. The isolate neither produced hemolysis nor grew on MacConKey Agar. It formed colony relatively slowly being recognizable at least 36 hours after culturing, reaching colony size of about 1mm in diameter at 48 hours culture. The colony looked iridescent under oblique light and had muddy odor. The isolate did not ferment carbohydrates tested but produced gelatinase, hippuricase and oxidase which were considered as characteristics of P anatipestifer. The isolate induced similar signs and lesions when infected experimentally into ducks of 3 to 38 days age via intraperitoneum or intratrachea. However it did not produce any clinical signs wen inoculated via intranasal route. It produced only mild signs in chicken just injected with a very large dose. The bacteria did not produce any signas or lesions in mice. It was concluded through biochemical and physiological tests and animal inoculation tests that the new disease was caused by P anatipestifer.
최정옥(Choi, Jung Ok),이소영(Lee, So Young),이유희(Lee, Yu Hee) 대구과학대학교 국방안보연구소 2020 사회융합연구 Vol. No.
본 연구는 치과위생사를 대상으로 손위생 신념에 대한 수준을 파악하고 신념에 영향을 미치는 요인을 분석하여 효율적인 손위생관리를 하고자 실시하였다. 부산 및 경남 소재의 치과병의원에서 근무하는 치과위생사 210명을 대상으로 자기기입식 설문조사를 실시하였고 SPSS ver 22.0를 사용하여 통계분석을 시행하였다. 연구결과를 살펴보면, 치과위생사의 손위생 중요도 4.74±0.51로 나타났고, 손위생 상태는 3.96±0.77이었다. 다양한 근무지는 손위생 통제신념과 유의한 차이가 있는 것으로 나타났으며(p=0.038) 손위생 신념에 영향을 미치는 요인으로는 행위신념에 근무시간(t=-2.337, p=0.020), 손위생 중요도(t=4.088, p=0.000), 손위생 상태(t=3.225, p=0.001)가 유의하였으며 규범신념은 손위생 중요도(t=4.765, p=0.000)에서 유의한 결과를 보였다. 통제신념은 손위생 상태(t=-2.061, p=0.041)가 유의하게 나타났다. 따라서, 본 연구를 통해 손위생관리에 대한 치과위생사의 신념은 다양한 요인들에 의해 영향을 받고 있으며 직업윤리의 측면에서 손위생 중요성을 인식하고 관리하는 것을 기초로 요인들을 조절하여 손위생관리방법이 필요하다. The purpose of this study was to describe beliefs level of dental hygienist about hand hygiene and to identify the relationships between beliefs and subject characteristics. Data were collected from 210 dental hygienists working in dental hospitals in Busan and Gyeongnam area, and statistical analysis was performed using SPSS ver 22.0. The results of the study showed that the importance of hand hygiene was 4.74 ± 0.51 and the status of hand hygiene was 3.96 ± 0.77. Various work places showed significant difference with hand hygiene control beliefs (p=0.038). Factors affecting hand hygiene beliefs were as follows. The working time (t = -2.337, p = 0.020), importance of hand hygiene (t = 4.088, p = 0.000), status of hygiene status (t = 3.225, p = 0.001) were significant for behavioral belief. Normative beliefs showed significant results in hand hygiene importance (t = 4.765, p = 0.000). The control beliefs were significant in status of hand hygiene (t = -2.061, p = 0.041). Therefore, dental hygienist s beliefs about hand hygiene management are influenced by various factors, and hand hygiene management method is needed by adjusting factors based on the recognition and management of hand hygiene importance in terms of occupational ethics.
최정옥(J.O. Choi),이정중(J.J. Lee),한석희(S.H. Han),김희중(H.J. Kim),강일구(I.K. Kang) 한국자기학회 1993 韓國磁氣學會誌 Vol.3 No.1
Thin films of soft magnetic Fe-Hf-C alloys with nanoscale crystallites were investigated in this study. The films were fabricated by an RF diode magnetron sputtering apparatus and subsequently annealed in vacuum. The soft magnetic properties of the films were observed to differ depending on the different substrates such as Corning 7059, CaTiO₃ and Al₂O₃-TiC with various underlayer(Cr, SiO₂) thickness. This results may be due to the interdiffusion between the substrate and the magnetic layer and / or between the underlayer and the magnetic layer, rather than the microstructural change such as grain size. The Fe-Hf-C films with high permeability up to 4000(at 1 ㎒) and saturation magnetization up to 16 kG were obtained in the vicinity of phase boundary between the crystalline and amorphous state when the size of α-Fe grains is about 5 ㎚. And also the films were found to have thermal stability up to 600 ℃.
만주문학을 통한 한중일 문학(자) 교류 ―좌담회(1938)와 대동아문학자대회(1942)를 중심으로
최정옥 ( Jung Ok Choi ) 고려대학교 중국학연구소 2011 中國學論叢 Vol.33 No.-
本論文中, 筆者對於滿洲國時期産生出來的所謂``滿洲(國)文學``話語進行了分析。特別是1938年, 日本的有名文學家林房雄與小林秀雄等訪問了``滿韓``地區, 幷且他們근在滿日本人作家進行了座談會。在座談會席上, 他們强調的說把``滿洲文學``應該被接受日本文學的指導。這就說``滿洲文學``是日本``植民地文學``的一種。這次訪問了滿洲國的林房雄等是日本最有名的文學家, 所以他們的發言也有흔大的影響力與權威。還有當時正在戰爭要緊, 戰場將全國性, 全面性地發展了。這時, 在滿日本作家們接到日本大作家們的訪問, 視察和指正, 종滿洲文學的視角來進行了一面근在滿中國人作家交流, 一面向日本讀者介紹在滿中國人作家的文學創造。這樣包括在滿中國人作家在內``滿洲文學``話語才被産生, 發展了。1941年爆發了太平洋戰爭。這時``滿洲文學``話語發展了``大東亞文學``話語。這詞語就是在滿洲國的建國理念上樹立的口號。在滿中國人作家的立場上說, 不能反對這個口號。根據嚴格生存狀態上, 他們的反映是逼不得已的。隨着時局的進展, 他們發言了積極響應太平洋戰爭時出現的``增産報國``、``英美擊減``口號, 幷且被動員了增産和視察活動。本論文繞着1938-1942年討論過的``滿洲文學``與``大東亞文學``話語, 探討了在滿日本作家們與中國人作家之間有甚마樣的交流, 這個交流的意義是甚마。
최정옥 ( Jung-ok Choi ) 한국고등직업교육학회 2001 한국고등직업교육학회논문집 Vol.2 No.2
Reinhold Lenz( 1951-1792) has been over one and half centuries forgotten in the German literaray history. It has only been since the middle of this century that Lenz has been recognized as a writer of social ciritical realism and as a pioneer of modern open dramatic form. To this Bertolt Brecht contributed much with his adaptation and the performance of Lenz’s drama Der Hofmeister. Brecht’s interest in Lenz began at the end of the 1930s with his desire to establish a realistic literature which revealed the social complexities of cause and effect and mastery of reality. He saw in Lenz a revolutionary realist who could overcome the efficiencies of Weimar Classicism and the German civil realism. In 1950 he adapted Lenz’s Der Hofmeister and had it performed by the Berliner Ensemble, which was a great success. In his adaptation the revolutionary realism was emphasized. The adaptation was a critical reception of Lenz's work and at the same time an attack on the leading political stream in East Germany in the 1950s. Brecht used Lenz for a brave critics of Weimar Classcism and of the East German regime which supported it. And also with a great success of the performance of adapted Der Hofmeister Brecht contributed much to resurrection of Lenz as a major literary figure .
최정옥 ( Jung Ok Choi ),남설희 ( Seoul Hee Nam ) 한국치위생학회(구 한국치위생교육학회) 2014 한국치위생학회지 Vol.14 No.2
Objectives : The aim of this study is to evaluate the surface changes of enamel specimen,tooth structure by toothpastes in child and adult. Methods : Experimental teeth were collected from extracted human primary teeth. 120 enamelspecimens were prepared by cutting the teeth into 2 x 3 x 2 mm blocks using diamond sawand the specimens were assigned to 3 groups. Group 1 was used as control with no treatment. Group 2 was treated with child toothpaste and Group 3 was treated with adult toothpaste onprimary enamel surface for 3 minutes daily over 4 weeks. The specimens were immersed intoindividual container having artificial saliva and the artificial saliva was changed every day. Theelectron probe micro analyzer (EPMA) provided weight percent (wt%) of calcium (Ca) andphosphorous (P) on enamel surface. The morphology was analyzed by scanning electron microscopy(SEM). Data were analyzed by one-way analysis of variance (ANOVA) and Tukey’s test post-hoctest using SPSS (Version 20, SPSS Inc., Chicago, USA). Level of significance was set at 0.05. Results : The surface changes of the primary teeth revealed a significant difference during4 weeks. Calcium (Ca) and phosphorous (P) levels were found the weight percent differenceand a rough enamel surface was seen on SEM after adult toothpaste application. Conclusions : The changes in Ca and P and the morphological surface were affected bythe primary tooth treated with adult toothpaste. Enamel surface showed significant differencesduring 4 weeks.
C. thermocellum Cellulase D 형질전환 생쥐의 조섬유 소화율 분석
최정옥(Jung Ok Choi),이정웅(Jung woong Lee),이은주(Eun Ju Lee),김명옥(Myoung Ok Kim),김성현(Sung Hyun Kim),박준홍(Jun Hong Park),조경인(Kyung In cho),정부경(Boo Kyung Jung),김희철(Hi Chol Kim),황설하(Sol Ha Hwang),남명수(Myung Su Nam 한국실험동물학회 2003 Laboratory Animal Research Vol.19 No.1