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유용덕,이창호,전윤수,이남규 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Posterial urethal valves represent the most common post-vesical obstructive malformation. One of the most credited pathological theories considers them an anomalous insertion of mesonephric duct into the cloca or incomplete involution of plicae colliculi. Urinary tract disorders that following posterior urethral valves include hydrouretheronephrosis and functional impairment of the entire urinary tract with consequent renal failure. Treatment of posterior urethral valves consists in their resection. In low-weight patients or in case of poor general condition, temporary external urinary bypass is feasible.
李原鎭,成德鏞,全永基,申再鉉 대구산업정보대학 1998 논문집 Vol.12 No.2
It was investigated the variation of polarization by the double refraction of light for a calcite crystal. In a calcite there is a single direction called the optics axis, which is an axis of symmetry with respect to both the crystal form and the arrangement of atoms. For a point in calcite, there are three principal sections, one for each pair of opposite crystal faces. A principal section always cuts the surfaces of a calcite crystal in a parallelogram withe angles of 71˚ and 109˚. When a beam of plane-polrized light is directed along the optic axis of calcite crystal, the plane of polarization turns steadily about the direction of the beam and emerges vibrating in some other plane than that at which it entered. The law of Malus is ralationship how the intensity transmitted by the analyzer varies with the angle that its plane of transmission makes with that of the polarizer. The pane polarization, θ was obtained from the law of Malus was 20.2˚
유기용제 취급근로자들의 요중대사물질과 말초임파구 자매염색분체교환 발현빈도에 관한 조사연구
김돈균,황인경,류철인,이수일,정갑열,이용환,이충렬,현원일,김석봉,전용덕 大韓産業醫學會 1990 대한직업환경의학회지 Vol.2 No.1
저자들은 유기용제 취급여성근로자 90명을 대상으로 1988년 7월부터 1989년 8월까지 말초혈액임파구에서의 자매염색분체교환의 발현빈도를 조사하고 이들의 업종, 근속연수, 요중마뇨산 농도등이 자매염색분체교환의 발현빈도에 미치는 영향을 조사하였으며 그 결과를 요약하면 다음과 같다. 1. 유기용제 취급근로자들의 말초혈액임파구에서의 자매염색분체교환의 발현빈도는 대조군에 비하여 유의하게 증가되었다. 2. 말초혈액임파구에서의 자매염색분체교환의 발현빈도가 가장 높은 업종은 프라스틱제품 제조업이었다. 3. 근속연수가 말초혈액임파구에서의 자매염색분체교환의 발현빈도에 미치는 영향은 현저하지 않았다. 4. 요중마뇨산농도와 말초혈액임파구에서의 자매염색분체교환의 발현빈도간에는 유의한 상관관계가 있었다. In order to know the possibility of utilizing the sister chromatid exchanges as an index which could evaluate the effect of organic solvents on the health in industrial workers, the authors studied the effects of the inductivity of sister chromatid exchanges in peripheral lymphocytes from 90 female workers expoxed to organic solvents and 20 non-exposed female workers. The results obtained were as follows : 1. The frequency of sister chromatid exchanges in peripheral lymphocytes from 90 female workers exposed to organic solvents was significantly increased in comparison with 20 control subject. 2. The frequency of sister chromatid exchanges was significantly increased in the workers who were employed in the manufacture of plastic materials than the other manufactures. 3. There were no significant differences in the frequency of sister chromatid exchanges by carriers of the exposed workers.
( Yong Duk Jeon ),( Jung Ho Kim ),( Hea Won Ann ),( Jin Young Ahn ),( Sun Bean Kim ),( Nam Su Ku ),( Sang Hoon Han ),( Jun Yong Choi ),( Dongeun Yong ),( Kyungwon Lee ),( June Myung Kim ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Backgrouond: Aggregatibacter aphrophilus (A. aphrophilus) is a gram negative, capnophilic, fermentative, coccobacillus that is occasionally isolated from patients with infective endocarditis. It has also been reported to cause brain abscess, empyema, meningitis, osteomyelitis and joint infection. Herein we report the first case of brain abscess caused by A. aphrophilus in Korea. Case: A 26-year-old man visited hospital for a headache during three weeks. He presented fever, nausea and vomiting for three days. His blood pressure was 108/69 mmHg and his body temperature was 36.9 ℃ at that time. His past medical history was unremarkable. Brain magnetic resonance imaging (MRI) was performed and revealed the 4 cm sized abscess in the frontal lobe with profound perilesional edema and subdural empyema. He received empirical intravenous antibiotic treatment with ceftriaxone 2.0 g every 12 hours, vancomycin 1.0 g every 12 hours and metronidazole 500 mg every 8 hours. On the 4th hospital day, he had decompressive craniectomy and drainage of the abscess. On the 8th hospital day, A. aphrophilus was identified in the culture of abscess. Vancomycin and metronidazole were discontinued and ceftriaxone monotherapy was maintained because it was susceptible to the 3rd generation cephalosporin. On the 11th hospital day, transthoracic echocardiography was performed, but there was no evidence of endocarditis. After a eight-week course of intravenous ceftriaxone therapy, follow-up MRI revealed almost resolved abscess. Intravenous ceftriaxone was changed to oral cefixime 100 mg every 12 hours and he was discharged. He treated with oral cefixime for 12 weeks in outpatient clinic until the complete resolution of brain abscess on MRI.
Jeon, Yong Duk,Hong, Namki,Kim, Jung Ho,Park, Se Hee,Kim, Sung Bae,Song, In Ji,Ann, Hea Won,Ahn, Jin Young,Kim, Sun Bean,Ku, Nam Su,Lee, Kyungwon,Yong, Dongeun,Kim, June Myung,Choi, Jun Yong The Korean Society of Infectious Diseases and Kore 2016 Infection and Chemotherapy Vol.48 No.1
<P>The incidence of <I>Clostridium difficile</I> infection is increasing worldwide, and its severity and resulting mortality are also on the rise. Metronidazole and oral vancomycin remain the treatments of choice, but there are concerns about treatment failure and the appearance of resistant strains. Furthermore, antibiotic therapy results in recurrence rates of at least 20%. Fecal transplantation may be a feasible treatment option for recurrent <I>C. difficile</I> infection; moreover, it may be an early treatment option for severe <I>C. difficile</I> infection. We report a case of severe <I>C. difficile</I> infection treated with fecal transplantation using a nasoenteric tube during an initial episode. This is the first reported case of fecal transplantation using a nasoenteric tube during an initial episode of <I>C. difficile</I> infection in Korea.</P>
( Yong Kyun Cho ),( Byung Ik Kim ),( Tae Woo Yoo ),( Se Yong Oh ),( Jung Ho Park ),( Dong Il Park ),( Hong Joo Kim ),( Chong Il Sohn ),( Woo Kyu Jeon ),( Seung Duk Ryu ),( Chang Shin Park ) 대한간학회 2005 Clinical and Molecular Hepatology(대한간학회지) Vol.11 No.3(S)
Backgrounds/Objectives: Nitric oxide (NO) has been implicated in the pathogenesis of a chronic liver disease, cirrhosis. In particular, the impaired hepatic endothelial NO synthase (eNOS) activity leads to the low NO bioavailability in vascular system, an
Controlled aggregates of magnetite nanoparticles for highly sensitive MR contrast agent.
Jeon, Bong-Sik,Cho, Eun-Jin,Yang, Hee-Man,Suh, Jin-Suck,Huh, Yong-Min,Kim, Jong-Duk American Scientific Publishers 2009 Journal of Nanoscience and Nanotechnology Vol.9 No.12
<P>We have prepared a magnetite encapsulated polymer nanocomposite (MEPN) by an emulsification-diffusion technique and found that the encapsulation efficiency could be precisely controlled according to the portion of magnetite and the capping ligand that covers the surface of the magnetite nanoparticles. The field-dependence and temperature dependence on magnetization, measured by a superconducting quantum interference device, demonstrate that there was no size effect of the magnetite nanoparticles on the encapsulation behavior. The size distribution and T2 relaxivity of prepared MEPNs were measured using magnetic resonance imaging for analysis of the effect of aggregation and it was verified that aggregates of the magnetite nanoparticles provide enhanced relaxation ability.</P>