• Korean Journal of Logic
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• v.22 no.1
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• pp.125-150
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• 2019

A coherence theory is adequate as a theory of justification only when justification as conceived by the theory is truth-conducive. But it is not clear how coherentist justification is truth-conducive. This is the alleged truth-conduciveness problem of coherentism. In my 2017 paper, I argued that a certain version of the coherence theory, namely a Sellarsian coherence theory combined with the deflationary conception of truth, can cope with this problem. Against this claim, Kiyong Suk argues in his recent paper that my proposed solution fails on the grounds that there is no practical way of distinguishing between intersubjective justification and objective justification. The purpose of this paper is to clarify my view by way of explaining why Suk's criticism is not correct. In particular, I argue that his criticism is based on a wrong assumption, namely that for one to be objectively justified in believing something, one's justification must be qualitatively transformed into the status of having objective justification from the status of having intersubjective justification.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.12
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• pp.131-138
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• 2016

In this study, we tried to analyze the influence of ICM(Iodinated Contrast Media) in MR imaging compare to GBCA(Gadolinium Based Contrast Agent), and as this result we discussed whether resonable or not the protocol which is MRI scan after enhanced CT scan without proper time interval in clinical field. For this research, we assembled two phantoms. which one was iodine and another one was gadolinium. We did test two phantoms in conventional MRI scan which is T1, T2, T2 FLAIR and 3D angio. After that, quantitative analysis was progressed. The results of study were as follow : SSI(Saline's Signal Intensity) was shown as each sequences 175, 1231, 333, 37 [a.u] at iodine. and 1297, 123, 757, 232 [a.u] was recorded at gadolinium. BDEPS(the Biggest Difference of EPS) was shown as each sequences 1297, 123, 757, 232 [a.u] at iodine and 793, 6, 1495, 365 [a.u] was recorded at gadolinium. At this time, EPS(Enhancement Percentage to Saline) was shown 641.1, -90.0, 127.3, 527% at iodine and 685.1, 99.4, 365.7, 1077.4% was recorded at gadolinium. BP(BDEPS's point) was shown 900, 900, 477, 900 mmol at iodine and 4, 0.2, 0.2, 40 mmol was recorded at gadolinium. CPSS(Change Point of SI to SSI) was shown 63, 423, 63, 29 mmol at iodine and each [50, 30], [4, 0.2], [4, 1], 0.2 mmol was recorded at gadolinium. According to this research, we could not only discover the fact that was iodine could effect on MR signal, but also the pattern is different as various sequences compare to gadolinium. Therefore, we expect useful diagnostic MR image in clinical field with this quantitative data for deciding protocol regarding MRI and CT scan order.

• KOREAN POULTRY JOURNAL
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• v.40 no.12
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• pp.126-129
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• 2008

경부고속도로 천안휴게소에 서면 도로 너머로 화려한 원색의 기다란 건물이 보인다. 장난감을 만드는 회사인가 싶을 정도로 알록달록한 이곳은 외관의 느낌과 달리, 면역체계 증진을 위한 사료첨가제와 AI 예방제, 다약제내성병원체(MDRP)치료제를 개발 판매하고 있으며, 각종 친환경 유기농 제품군을 생산, 판매하고 있는 친환경 바이오 전문 기업 (주)리스나(대표 이종화, 이혁기, 정태호)의 본사이다. 리스나(Liisna)는 'Life is Nature'의 약자로 '삶은 곧 자연이다. 생명의 원천은 자연이다. 생명과 자연은 하나다.' 라는 의미를 포함하고 있다. 리스나의 전신인 구 오보바이오는 2005년 단국대학교 내 창업센터에서 시작해 2007년 지금의 자리로 이전하였다. 그리고 순환적 발전 모델을 추구하고자 2008년 8월 '(주)리스나'로 사명과 CI를 변경했다. 사명과 CI 변경을 통해 '바이셀라 코리엔시스(Weissella koreensis)'를 기반으로 한 바이오 사업 부문과 유기농 사업 부문이 순환적으로 결합되어 친환경 바이오 전문기업으로서의 시너지 효과를 꾀하고 있다. 아울러 '인류의 건강한 행복을 지향하는 기업' 이라는 비전을 이루기 위해 노력하고 있다.

• Journal of Life Science
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• v.20 no.5
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• pp.697-702
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• 2010

Ten farrow-finish farms participated in this seromonitoring that was conducted to investigate the porcine brucellosis situation in Korea. In total, eight (80.0%) of the 10 farms and 139 (24.0%) of 578 pigs tested showed a positive response in the Rose Bengal test (RBT). Seroprevalence levels were determined using RBT according to age; 35 (14.6%) of 239 piglets, 36 (31.3%) of 115 growing pigs, and 68 (30.4%) of 224 finishing pigs and sows were positive, respectively. All positive samples in RBT were tested with the tube agglutination test (TAT) and competitive ELISA (C-ELISA), simultaneously. Although 48 samples came up positive in the TAT, all samples tested with C-ELISA were negative. Among 26 rectal swab samples from the TAT positive-pigs, Yersinia enterocolitica O:9 was isolated from seven samples (26.9%). Therefore, we speculated that the positive reaction of RBT and TAT in this study might be induced by the serologically cross-reacting bacteria with Brucella abortus.

• Tunnel and Underground Space
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• v.22 no.2
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• pp.93-105
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• 2012

This paper compares the two- and three-dimensional (2D and 3D) approaches for the numerical determination of the equivalent mechanical properties of fractured rock masses. Both orthogonally-fractured model and discrete fracture networks (DFN) were used for the geometry and 2D models were cut in various directions from 3D model to compare their mechanical properties. Geological data were loosely based on the data available from Sellafield, UK. Analytical method based on compliance tensor transformation was used for investigation in orthogonally fractured rock and numerical experiments were conducted on fractured rock mass with DFN geometry. It is shown that 2D approach always overestimates the elastic modulus of fractured rock masses by a factor of up to around two because fractures are assumed to be perpendicular to the model plane in 2D problems. Poisson ratios tend to have larger values in 2D analysis while there is opposite trend in some sections. The study quantitatively demonstrates the limitation of the 2D approach that uses the simplified model from true 3D geometry.

• Korean Journal of Veterinary Service
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• v.33 no.4
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• pp.327-334
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• 2010

The prevalence of major zoonotic diseases such as tuberculosis, brucellosis and the highly pathogenic avian influenza (HPAI) in Jeonbuk province was monitored from 2004 to 2008. For tuberculosis, a total of 306 heads from 92 farms were positive during the surveillance period, which 228 heads were from 78 dairy farms and 78 heads from 14 Hanwoo farms. Based on the number of recurrent tuberculosis in 92 positive farms, 28 farms or 43.8% of the positive farms had 1-4 additional outbreaks during the surveillance. Based on brucellosis surveillance of 5,252 dairy cattle and 2,600,829 Hanwoo conducted during the same time period, 4,818 heads from 1,203 farms were positive for brucellosis, which 445 heads were from 111 dairy farms and 4,373 heads from 1,092 Hanwoo farms. Among the 1,203 positive farms, 473 farms or 39.3% of the positive farms had experienced 1-4 recurrent brucellosis during the surveillance. According to nationwide surveillance of HPAI, a total of 45 cases had been reported between 2004 and 2008. Among those outbreaks, 20 cases were reported in Jeonbuk province and 3 cases in 2006 and 17 case in 2008. For the regional distribution of 20 cases in Jeonbuk, 4 cases (48,490 chickens), 4 cases (23,066 chickens 66(1) and ducks 23,000(3)), 11 cases (183,077 chickens 63,077 (10) and quails 120,000 (1)), and 1 case (9,000 ducks) were reported in Iksan, Jeongeup, Gimje and Sunchang, respectively.

• Korean Journal of Veterinary Research
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• v.50 no.2
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• pp.117-124
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• 2010

Members of the genus Brucella are facultative intracellular bacteria and cause brucellosis, a chronic disease in humans and abortion in animals. In this study, we tested sera for brucellosis of 15 Hanwoo farms in the western part of Gyeong-buk province, resulting 5 farms were brucellosis positive in 2008. We collected blood from 277 heads in the brucellosis positive 5 farms, and performed serological diagnosis, brucella positive cattle which had shown higher than 200 antibody titer in tube agglutination test were slaughtered, supramammary lymph nodes were collected, and Brucella spp. wild type isolation and identification were performed. From these results, 15 of Brucella spp. wild type strains were isolated and all strains were identified as B. abortus biotype 1 by biological and molecular analysis. In the antimicrobial susceptibility test, all 15 strains had a similar susceptibility and resistance pattern. This study may be useful for bacteriological and epidemiological understanding of cattle brucellosis in Korea.

• Korean Journal of Veterinary Research
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• v.56 no.4
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• pp.249-254
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• 2016

As the meat of black goats has become popular as a healthy food, domestic goat meat-related industries are steadily growing. However, previous studies are scarce of informations about the zoonotic disease originated from the black goat in Korea. In this study, we investigated Korean black goat's infectious diseases representing bovine tuberculosis, brucellosis, and Q fever. One hundred and eighty samples were collected from a local slaughter house located in Jeollanam-do. Three typical zoonotic diseases were separately examined by carrying out enzyme linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR). Histopathological test was additionally performed in tuberculosis. In case of tuberculosis, results of the PCR and histopathological test were negative but the ELISA results were positive in eight samples. In case of brucellosis, one out of the total samples was shown to be positive in the ELISA and none in the PCR. In case of Q fever, there were forty one positive in the ELISA and twenty positive in the real-time PCR. Those results indicate that the Korean black goat could be a natural reservoir in the possible chain-infections among human, cows and goats. Thus, further study needs in order to improve productivity as well as to prevent the zoonosis spreading and circulation of other livestock with the black goat in this country.

• Korean Journal of Veterinary Research
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• v.35 no.1
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• pp.143-148
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• 1995

Brucella abortus cell wall antigen was extracted from Brucella abortus 1119-3 by ultrasonication and followed by sodium dodecyl sulfate(SDS) treatment. In order to confirm whether this preparation is serologically cross reactive with Yersinia enterocolitica 0:9, Western blot analysis with mouse anit-Brucella abortus1119-3 and with mouse anti-Yersinia enterocolitica 0:9 was performed. ELISA results from using those Brucella antigen and Yersinia antigen were assessed whether they had correlation. According to the results of western blot analysis and ELISA, there was no evidence of cross reactivity between the Brucella abortus 1119-3 antigen preparation and Yersinia enterocolitica 0:9. Therefore the SDS treated antigen prepared in this study could be suitably used as specific ELISA antigen without confusion in the interpretation of serological tests for brucellosis in cattle.

• Journal of agricultural medicine and community health
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• v.30 no.1
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• pp.51-62
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• 2005

Objectives: This study was conducted to understand the recognition on brucellosis in rural communities and to apply the results to counterplan for brucellosis control and prevention. Methods: The authors conducted a questionnaire survey from September 8 to 13, 2004 among the residents in 2 rural communities: 507 people at Gigye-myeon and 521 people at Buk-myeon. The authors developed a questionnaire which investigated age, gender, general recognition of brucellosis, status of cattle breeding, compensation for loss due to brucellosis and so on. Results: The study group contained 195 (19.0%) stock breeders (veterinarians and cattle merchants were included) and 833 (81.0%) non-stock breeders. For the question, 'Have you ever heard about brucellosis or do you know about brucellosis?', 283 respondents (27.5%) replied affirmatively. For the question, 'Do you know that pregnant women who suffer brucellosis may have a miscarriage?', 98 respondents (35.1%) replied affirmatively. For the question, 'Have your cattle ever aborted or calved a premature calf?', 28 respondents (14.9%) replied affirmatively. For the question, 'Have you ever handled an abortus or a premature calf with your bare hands?', 10 respondents (5.3%) replied affirmatively. For the question, 'Do you know that the government compensates for slaughter loss due to brucellosis?', 46 respondents (25.0%) replied affirmatively. Conclusions: Many people were ignorant about brucellosis. Therefore, their ignorance must be corrected by a publicity campaign. Some stock breeders handled the cattle abortus with their bare hand. Stock breeders must wear protective equipment during working. The authors expect that this study will assist in establishing both a safe cattle breeding environment and preventive strategies for diminishing the incidence of brucellosis.