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김명철,장석진,이교영,김남중,변홍섭,박명호 충남대학교 수의과대학 동물의과학연구소 1995 動物醫科學硏究誌 Vol.3 No.-
Three dogs which show clinical signs of cystic calculi with anorexia, hematuria, stranguria, dribbling of urine, and pain in posterior abdomen, were referred, and diagnosed as cystic calculi by radiography and ultrasonography. Removal of urinary cystic calculi was performed by urinary cystotomy. Calculi, removed surgically, were analyzed chemically and microscolically. Calculi from three patient dogs were calcium carbonate in all. After the removal of calculi recurrence of urolith were not observed up to nowadays for about 4-10 months.
김명철,변홍섭,박명호,강부현 충남대학교 수의과대학 동물의과학연구소 1996 動物醫科學硏究誌 Vol.4 No.-
Two Beagle dogs were examined by ultrasonography to get detailed informations about the normal size and texture of abdominal organs. Ultrasonographic examination of liver, gallbladder, stomach, duodenum, spleen, kidney and urinary bladder was performed on the abdomen in dorsal recumbency. The ultrasonographic values in this study can be used as reference for the diagnosis of changes in abdominal organs of Beagle dog.
김명철,변홍섭,박명호,박종오,김종만 충남대학교 수의과대학 동물의과학연구소 1997 動物醫科學硏究誌 Vol.5 No.-
This study was performed to determine the ultrasonographic appearance of the reticulum in the cattle according to the intake of foreign body. Metal balls, magnets, gravels and rubber were administered to a 13 months old female Korean native cattle. After foreign bodies in the reticulum were ascertained, foreign bodies were observed by ultrasonography. The ultrasonographic values in this study can be used as reference for the diagnosis of foreign body of the reculum in cattle.
이동통신서비스의 기업능력, 경쟁전략 및 경쟁우위의 영향관계에 관한 탐색적 연구
김문구,박종현,박명철 한국경영과학회 2004 經營 科學 Vol.21 No.2
Recently domestic mobile carriers have been engaged in heated battles for survival as the market is now rapidly approaching its maturity phase, and the launch of 30 service combined with the introduction of mobile number portability is dramatically reshaping the market landscape. The mobile carriers may have to create and maintain their competitive advantage based on their core capabilities and differentiated strategies, which will lead continuous survival and profits of the firm. This paper investigated competitiveness factors among mobile carriers, and analyzed the relationships of firm capabilities, competitive strategies and competitive advantage. We found that core capabilities and competitive strategies affecting competitive advantage are different from each carrier. Finally, we discussed strategic implications for carriers to increase their competitiveness.
자가부식 프라이머의 적용시간이 법랑질 접착에 미치는 영향
진철희,조영곤,김수미,이명선 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.3
이 연구의 목적은 6종의 자가부식 프라이머 접착시스템에서 제조사에서 추천한 프라이머 적용시간과 2배의 프라이머 적용시간에 따른 법랑질에 대한 미세전단 결합강도와 전자현미경적 소견을 비교하기 위하여 시행하였다. 이 연구의 결과 법랑질에 대한 자가부식 프라이머 접착제의 결합강도는 제조사에서 추천한 프라이머의 적용시간보다 프라이머의 적용시간을 2배 증가시킨 경우 높게 나타났으며, 특히 pH가 높은 프라이머를 사용하였을 때 통계학적으로 높은 결합강도를 나타내었다. 이는 법랑질에서 pH가 높은 프라이머를 사용할 경우, 제조사에서 추천한 시간보다 더 긴 시간동안 적용하는 것이 결합강도를 증가시킬 수 있을 것으로 생각된다. The purpose of this study was to compare the normal and two times of application time of six self-etching primers applied to enamel using microshear bond strength (uSBS) test and the finding of scanning electronic microscope (SEM). Crown of sixty human molars were bisected mesiodistally and buccal and lingual enamel of crowns were partially exposed and polished with 600 grit SiC papers. They were divided into one of two equal groups subdivided into one of six equal groups (n = 10) by self-etching primer adhesives. After the same manufacture' s adhesive resin and composites were bonded on the enamel surface of each group, the bonded specimens were subjected to uSBS testing and also observed under SEM. In conclusion, generally two times of primer application time increased the enamel uSBS, especially with the statistical increase of bond strength in adhesives involving high-pH primers.
동종 골수이식 후 만성 이식편대숙주질환과 동반되어 신증후군으로 발현된 IgA 신병증 1예
정철권,김현수,박준성,정성현,조도연,최진혁,남동기,임호영,김명성,신규태,임현이,김효철 대한조혈모세포이식학회 1999 대한조혈모세포이식학회지 Vol.4 No.2
동종 골수이식 후 발생하는 신기능부전은 원인이 다양하여 감별에 어려움이 있다. 만성 GVHD는 흉선의 기능저하에 따른 면역관용의 실패로 발생되는 자가면역현상에 의해 발생되는 것으로 알려져 있으며 드물게 신장을 침범하여 신증후군을 일으키기도 한다. CaA의 용량을 줄이거나 투약중지 후 발생한 만성 GVHD에 동반된 신증후군의 경우 조기에 신조직검사를 시행하여 감별진단하고 CsA의 용량을 증량하거나 재투약하여 좋은 치료 결과를 보일 것으로 기대된다. 저자들은 문헌고찰을 통해 동종 골수이식 후 발생된 신증후군이 유사한 임상양상을 보이며 발생기전에 만성 GVHD와 자가면역현상이 연관되어 있음을 확인하였으며 동종 골수이식 후 신증후군의 임상양상을 보이는 환자에서 병리조직학적으로 lgA 신병증을 진단하고 이러한 lgA 신병증이 발생기전에 만성 GVHD와 자가 면역현상이 연관되어 있을 가능성을 최초로 확인하였으며 CsA를 이용하여 성공적으로 치료한 경험을 하였기에 보고하는 바이다. Renal insufficiency is occasionally encountered in allogeneic bone marrow transplantation and its cause is difficult to ascertain. Chronic graft-versus-host disease (GVHD) related to thymic dysfunction is immune-mediated and involves autoreactivity of T-lymphocytes derived from donor marrow to recipient's major histocompatibility complex(MHC) minor antigens. The clinical mainifestations of chronic GVHD are similar to those of autoimmune disease but kidney involvement is rare. Few cases of nephrotic syndrome with membranous nephropathy or minimal change nephrotic syndrome have been reported to be associated with chronic GVHD in allogeneic bone marrow transplant recipient especially after cyclosporine A(CsA) withdrawal, and these cases have responded well to CsA. Therefore, it is prudent to differentiate the cause of post-transplant renal insufficiency using renal biopsy and to start CsA in a case of nephrotic syndrome associated with chronic GVHD as early as possible. We report a case who had a massive proteinuria during the post-allogeneic marrow transplantation period. The cause of nephrotic syndrome was diagnosed as IgA nephropathy by renal biopsy. The patient was successfully treated with reintroduction of CsA.