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      • Application of Artificial Insemination Technology for Dairy Breeding in Mongolia

        Hyun‐Tae Jo,Jong‐In Jin,Seong‐Su Kim,Byung‐Hyun Choi,Tumor Baldan,Jung‐Gyu Lee,Yun‐Shik Kim,Sam‐Churl Kim,Il‐Keun Kong 한국동물생명공학회(구 한국동물번식학회) 2011 발생공학 국제심포지엄 및 학술대회 Vol.2011 No.1

        This study was focused on improvement of milk production in Mongolia dairy industry by artificial insemination (AI) technology, of which was supported from ODA project of KOICA in Republic of Korea. The study was started from January 2009 to present and 3rd years in this year. So, all data, especially synchronization and pregnancy of dairy cows (Holstein) will be summarized in final result in this year. For synchronization, total 81 dairy cows selected from 4 private farms that were 38, 30, 8 and 5 in Undarmal milk, Onjin (Enkhbayer), Jargalant, and BRM School, respectively. All the dairy cows were injected intramuscular (IM) of 5 ml PGF2α in the vulva and detected estrus 2 to 3 days after PGF2α injection. Total 78 out of 81 dairy cows (96.3%) were detected estrus by only 1 time injection of PGF2α. The dairy cows that were induced estrus, inseminated with 0.5 ml dairy frozen semen by conventional AI techniques. The pregnancy diagnosis of the AI dairy cows was detected by uterus palpation after 60 days of insemination. Total 75 from 78 inseminated dairy cows (90.1%) were diagnosis pregnant. The estrus induction and pregnant rate were very effective using PGF2α injection and conventional AI techniques in Mongolia dairy cow. The results indicated that AI after estrus induction in Mongolia dairy cows could be applied to dairy breeding technology to improve the breeding efficiency and milk production.

      • 한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고

        양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

        The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

      • KCI등재
      • Seeds의 Crystallinity가 Cordierite의 상변태에 미치는 영향

        최태현,전병세,이성우 慶南大學校 附設 工業技術硏究所 1994 硏究論文集 Vol.12 No.-

        고밀도이며 고순도인 cordierite를 제조하기 위하여 solution sol-gel법과 α-cordierite의 seeding을 이용하였다. 시료를 분말과 monolith로 나누어 실험을 행하여 seed의 품질이 cordierite의 μ-type에서 α-type로의 상변태와 밀도에 관해서 각각 어떠한 영향을 미치는가에 대해서 알아보았다. 연구결과, 1000℃에서 합성한 seed용 분말보다 1300℃에서 합성한 seed용 분말이 더 α-cordierite 결정에 접근되어 있었고, 1300℃에서 합성한 seed를 첨가한 분말이 여러 범위의 온도에서 α-cordierite결정으로 가장 잘 발달하였으며, monolith의 경우 역시 1300℃에서 합성한 seed를 첨가한 것이 높은 밀도를 가지는 것으로 나타났다. 그러므로 cordierite의 homogeneity와 밀도는 첨가하는 seed의 crystallinity에 크게 좌우된다고 하겠다. Solution sol-gel(SSG) method and seeding were used to fabricate homogenious α-cordierite with high purity. The cordierite powders prepared by SSG and heat-treating at various temperature ranging 1000-1300℃ were added in the mixed or reacted with solution for seeding. Seed powder synthesized at 1300℃ was well developed to α-cordierite rather than any other seed powders at below 1300℃ and the quantity of α-phase was highest in the powder heat-treated at 1300℃ which had been added by seeding at 1300℃. The densities of all the monoliths were high because of existense of other phases like spinel. Therefore, the homogenity of resultant oxides depends on the crystallinity of seed.

      • KCI등재

        외상성 교합으로 인한 어린이의 치주질환

        최병재,고동현,김성오,이제호,손흥규 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.3

        외상성 교합은 교합력의 결과로서 치주조직에 가해지는 손상이다. 주된 증상은 치아의 동요도이고, 통증, 타진에 민감, 열에 민감한 증상이 동반될 수 있으며 교합력에 의해 치아가 이동을 할 수도 있다. 만성으로 진행시 치아의 과도한 교모가 나타나며 방사선학적으로 치근막 공간의 비후, 치조백선의 비후, 치조골의 방사선 투과성, 치근흡수 등이 나타날 수 있다.외상성 교합은 치주질환의 원인과 관련되어 있다. 증가된 치아동요도를 야기하며 외상성 교합 자체는 치은염과 치주낭을 발생시키지 않으나 국소적 치태와 염증이 존재하고 있는 하에서 골소실, 치주낭이 발생할 수 있다. 치은퇴축은 외상성 반월, 맥콜스 팽윤, 스틸만 균열의 형태로 나타난다. 본 증례는 하악 유견치 부위의 치주질환을 주소로 내원한 5세 남아로서 상하악 유견치의 조기 접촉에 의해 하악 좌우측 유견치의 중증도의 동요도, 교합마모, 치은 퇴축, 치조골 파괴의 증상이 나타났기에 보고하는 바이다. Trauma from occlusion(TFO) is injury to the periodontal tissue as a result of occlusal forces. Mobility is a common clinical sign of occlusal trauma. In acute occlusal trauma, this may be accomanied by pain, tenderness to percussion, thermal sensitivity, and pathologic tooth migration. Chronic occlusal trauma may be marked by excessive wear and gingival recession. Radiographic finding include a widened periodontal ligament space, radiolucence and condensation of the alveolar bone, and root resorption. TFO is related to the pathogenesis of periodontal disease. It can cause increased tooth mobility. TFO itself does not initate or aggravate marginal gingivitis or initiate periodontal pockets. Active trauma can accelerate bone loss, pocket formation and gingival recession depending on the presence of local irritants and inflammation. Gingival recession associated with occlusal forces includes traumatic crescent, McCall's festoon and Stillman's cleft. TFO plays a minor role in the pathogenesis of early to moderate periodontitis. A 5-year-old male visited Yonsei University Pedodontics clinic with a chief complaint about gingival recession. Mobility, excessive wear, gingival recession were detected by clinical exam on the both mandibular deciduous canine. On the radiographic view, vertical alveolar bone loss was observed on both mandibular deciduous canine.

      • 상처치유시 Antisense TGF-β1 Oligodeoxynucleotides가 Inducible Nitric Oxide Synthase발현 조절에 미치는 영향

        최병민,곽현정,전창덕,임정식,박석돈,정헌택 大韓免疫學會 1996 大韓免疫學會誌 Vol.18 No.4

        Wound healing in the skin may be complicated by both microbial invasion and inflammation. Following injury, platelet degranulation releases a number of chemotactic factors including transforming growth factor (TGF-fl) and platelet derived growth factor (PDGF). TGF-19 is a cytokines that modulates many cellular function and gene expression. However, it is not known whether TGF-P could regulate inducible nitric oxide synthase (iNOS) gene expression during wound healing. Here we report that down regulation of TGF-Q gene expression by antisense oligodeoxynucleotides increase iNOS during wound healing. Our reverse transcription- polymerase chain reaction (RT-PCR) result has shown that antisense TGF-fil oligodeoxynucleotides (ODN) targeting the TGF-J11 translation initiation region markedly reduced TGF-(il mRNA levels in wounded skin. Also, marked reduction in TGF-fl1 mRNA after antisense treatment invited that the increment of iNOS mRNA in wounded skin. Therefore, our irnmunohistochemical studies revealed a "pattern of iNOS product in wounded skin treated antisense TGF-fl1 ODN that was similar to the pattern of RNA synthesis detected by RT-PCR. In conclusion, our results indicated that the regulatory actions of TGF fl1 on iNOS. might be involved in the initiation and faciliates the resolution of inflammation following wounding.

      • KCI등재

        Methotrexate 치료를 받고 있는 활동성 류마티스 관절염 환자에서 etanercept의 유효성과 안전성에 관한 연구

        최병렬,강태영,정청일,이혜순,엄완식,김태환,전재범,유대현,배상철 대한내과학회 2004 대한내과학회지 Vol.66 No.5

        목적 : 류마티스 관절염을 앓고 있는 한국인 중에 기존 DMARDs로 치료 실패하였고, 고정용량의 MTX를 복용하고 있는 환자들에 있어서 etanercept의 유효성과 안전성을 평가하고자 하였다. 방법 : 기존 DMARDs로 치료 실패한 활동성 류마티스 관절염 환자 76명을 대상으로 하여 단일군, 공개시험을 하였다. 대상 환자들은 고정용량의 MTX를 복용하면서 etanercept 25 mg을 1주일에 두 번 피하 주사하였으며 12주간 투여하였다. 유효성은 ACR 20, ACR 50,조조강직 시간으로 평가하였고, 약제의 안전성은 이상반응 등으로 평가하였다. 결과 : 대상 환자는 총 76명으로 평균 연령은 45.2세, 남자 5명, 여자 71명이었다. 84.4%인 54명이 12주째에 ACR 20을 만족하였고, 53.1%인 34명이 12주째에 ACR 50을 만족하였다. 조조 강직 시간은 치료 전 203.3분에서 치료 12주째 42.6분을 평균 74.5% 호전되었다. 가장 흔한 이상반응은 주사부위 반응이었다. 이외에도 상기도 감염, 오심, 안면부종 등이 발생하였으나 심각한 부작용은 없었다. 결론 : etanercept는 효과적이고, 안전한 류마티스 관절염 치료 방법이며 특히 MTX치료에도 불구하고 활동성인 류마티스 관절염에 기대되는 치료라고 할 수 있다. Background : This study was performed to investigate the efficacy and safety of etanercept in active rheumatoid arthritis patients with stable dose of methotrexate in Korean. Methods : In a 12 week, single arm, open trial, we assigned 76 patients with active rheumatoid arthritis who had an inadequate response to disease-modifying antirheumatic drugs. Patients received twice-weekly subcutaneous injections of etanercept 25 ㎎ while containing to receive methotrexate at a stable dose of 7.5~25 ㎎ per week. The clinical response was defined as the percent improvement in disease activity according to the criteria of the American Collage of Rheumatology (ACR) at 12 weeks. Results : Etanrecept led to significant improvements in disease activity and was safe and well tolerated. At 12 week, 84.4% of the patients receiving 25 ㎎ of etanercept achieved a 20% ACR response, and 53.1% of those receiving etanercept achieved a 50% ACR response. The most common adverse event was injection-site reaction. Other advanse events were upper respiratory infection, nausea, and facial edema, but there were no serious adverse events associated with etanercept. Conclusion : In active rheumatoid arthritis patients, etanercept was safe, well tolerated, and provided rapid clinical improvements.

      • DCT를 이용한 영상의 윤곽선 추출을 위한 양자화 테이블 비교분석

        최현주,성병우,최흥국,서재현 인제대학교기초과학연구소 1998 자연과학 Vol.2 No.-

        본 논문에서는 DCT(discrete consine transform)를 이용하여 영상 데이터를 공간 영역에서 주파수 영역으로 변환하여 주파수 영역별로 분해한 뒤, 윤곽선 추출과 압축을 동시에 하기 위한 여러 양자화 테이블을 적용하고, IDCT(Inverse DCT)를 이용하여 복원한 결과를 비교 분석함으로써, 보다 정확한 윤곽선을 가진 영상을 추출할 수 있는 양자화 테이블을 구했다. 이 양자화 테이블을 DCT 처리된 영상에 적용했을 때 윤곽선과 압축 효과를 가진 영상을 얻을 수 있었다. In this paper, we transform image data from spatial domain to frequency domain using DCT, decompose it into each frequency band. We apply various quantization table for edge detection and compression simultaneously. We researched a quantization table for extracting image with exact edge, as compare and analyze restored images using IDCT. When we applied this quantization table to the DCT transformed image, acquired the image with edge and compression effect.

      • ℓ-Carnitine의 金屬錯化合物에 관한 硏究

        崔秉箕,金順美,趙顯英 同德女子大學校 1987 同大論叢 Vol.17 No.1

        In order to clarify transportation, the mode of action of intracellular ℓ-Carnitine related to the β-oxidation of fatty acid. metal (Cu++, Cd++, Mn++, Mg++, Ni++ And Zn++) coordination complexes of ℓ-Carnitine were studied on acid dissociation, stability constant, thermal stability, and functional radical chelated with metal by means of I.R. spectroscopy, differential thermal analysis and Bjerrum's method. The obtained results are summerized as follows: 1. The acid dissociation constant of ℓ-Carnitine in aqueous solution(μ=0.02) was found to be 6.3×10-5 at 25℃. 2. L-carnitine has formed metal coordination complex with Ni++, Co++, Zn++, Mn++, Mg++ an Cd+. From data calculated p[A-] and n, stability constants (log K₂ and log K₃) are obtainde; Metal Complex Cd Co Mn Mg Ni Zn log K₂ 2.7 - - 3.22 - - log K₃ 3.05 2.84 3.33 3.07 2.85 3.83 3. According to I.R. spectral data, amino and carboxyl groups of ℓ-carnitine are assumed to participate in the complex formation. 4. According to differential thermal analysis, each metal-carnitine coordination complex has been shown Mn>Zn>Cd>Mg>Ni>Co in thermal stability. 5. It is assumed that metal/ligand ratios has 1:3 approximately.

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