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Intestinal Helminthic Infections Diagnosed by Colonoscopy in a Regional Hospital during 2001-2008
Kyong-Rock Do,Young-Seok Cho,Hyung-Keun Kim,Byung-Hee Hwang,Eun-Jung Shin,Hae-Bin Jeong,Sung-Soo Kim,Hiun-Suk Chae,Myung-Gyu Choi 대한기생충학열대의학회 2010 The Korean Journal of Parasitology Vol.48 No.1
The present study investigated characteristics of 24 parasite infection cases detected during colonoscopy in a regional hospital from January 2001 to December 2008. Sixteen patients were confirmed with Trichuris trichiura infection, 6 patients were with Ascaris lumbricoides infection, 1 patient with Enterobius vermicularis infection, and 1 patient with Anisakis infection. Among them, 7 patients (43.8%) were asymptomatic. Colonoscopy findings were normal in 18 patients (75.0%). Among the patients with T. trichiura infection, colonoscopy showed several erosions in 2 patients (8.3%) and non-specific inflammation of the affected segment of the colon in 3 patients (12.5%). In 1 patient with anisakiasis, colonoscopy revealed a markedly swollen colonic wall. Stool examinations were performed before treatment in 7 patients (29.2%) and were all negative for parasite eggs or worms. These results suggest that colonoscopy is a useful diagnostic approach for parasitic infections even for asymptomatic patients and for patients with negative stool examinations.
Erratum to: Intracellular Substrates of a Heme-Containing Ascorbate Oxidase in Pleurotus ostreatus
Seung-Rock Lee,Woo-Jeong Joo,Yong-Un Baek,Youn-Kyong Lee,Seong-Woon Yu,Yeon-Ran Kim,Kee-Oh Chay,Seung-Hyun Cho,Sa-Ouk Kang 한국미생물학회 2009 The journal of microbiology Vol.47 No.6
In the online version of the article the name of the second corresponding author is misspelled. The correct spelling is Sa-Ouk Kang. The online version of the original article can be found under doi: 10.1007/s12275-008-0307-8
증례 : 감염 ; Campylobacter jejuni 감염으로 인한 패혈 유산 1예
나신 ( Shin Na ),나희경 ( Hee Kyong Na ),박현정 ( Hyun Jung Park ),박영훈 ( Young Hoon Park ),황금록 ( Keum Rock Whang ),박기호 ( Ki Ho Park ),우준희 ( Jun Hee Woo ) 대한내과학회 2011 대한내과학회지 Vol.81 No.3
31세 초임부가 발열과 두통으로 내원하여 임신 중삼분기의 패혈 유산을 진단받았고 혈액배양 검사에서 C. jejuni가 동정되었다. 태반의 병리 소견에서 융모 사이 농양과 함께 급성 융모염이 관찰되었으며 태아 임신 중절과 항생제 사용으로 임상증상이 호전되었다. C. jejuni는 사람에서 발생하는 패혈 유산의 드문 원인균이고 아직까지 우리나라에서 보고 된 예가 없어 문헌고찰과 함께 보고하는 바이다. Campylobacter jejuni was isolated from the blood of a 31-year-old woman who suffered a mid-trimester septic abortion with fever and headache. Histologically, evidence of septic abortion was found, with an intervillous abscess and acute villitis. Complete clinical recovery followed termination of the pregnancy and the use of antibiotics. C. jejuni is an unusual cause of septic abortion in humans. To our knowledge, no case has been reported in Korea. (Korean J Med 2011;81:408-411)
Low-Frequency Noise After Channel Soft Oxide Breakdown in HfLaSiO Gate Dielectric
Hyun-Sik Choi,Seung-Ho Hong,Rock-Hyun Baek,Kyong-Taek Lee,Chang-Yong Kang,Jammy, R.,Byoung-Hun Lee,Sung-Woo Jung,Yoon-Ha Jeong IEEE 2009 IEEE electron device letters Vol.30 No.5
<P>Low-frequency noise (LFN) after channel soft oxide breakdown (SBD) of n-MOSFETs with a HfLaSiO gate dielectric and TaN metal gate shows a Lorentzian-like spectrum, which is not observed in HfSiO gate dielectric devices after channel SBD. This is related to the spatial location of the SBD spot. Because La weakens atomic bonding in the interface layer, the SBD spot is generated close to the Si/SiO<SUB>2</SUB> interface. This is verified by using time domain analysis. To examine the property of this Lorentzian-like noise, LFNs after channel SBD are measured repeatedly after arbitrary times. After about 20 h, LFN finally shows an increase only at the low-frequency part of the noise spectrum (f < 1 kHz). These results suggest that the trap distribution after arbitrary times spreads instead of remaining localized. Therefore, the traps or the La-O defect clusters have severe unstable distribution and induce an increase of the localized field, which, in turn, causes the traps to percolate through the high-k dielectric.</P>
골밀도와 인슐린유사 성장인자-1 유전자내 (CA) 다형성과의 연관성
김정구 ( Jung Gu Kim ),노경록 ( Kyong Rock Roh ),김석현 ( Seok Hyun Kim ),최영민 ( Young Min Choi ),문신용 ( Shin Yong Moon ),이진용 ( Jin Yong Lee ) 대한폐경학회 2001 대한폐경학회지 Vol.7 No.1
N/A Objective:To examine the relationship between cytosine-adenine (CA) polymorphism in insulin-link growth factor-Ⅰ (IGF-Ⅰ) gene and bone mineral density (BMD). Material & Method: IGF-Ⅰ gene CA polymorphism were analyzed in 125 postmenopausal Korean women, and BMD was determined at the lumbar spine and proximal femur using dual energy X-ray absorptiometer. Results: Nine IGF-Ⅰ alleles were observed with product sizes ranging between 176-196bp, and their distribution was as follows: 194bp 22.4%, 188bp 21.2%, 186bp 20.4 %, 192bp 16.0%. 190bp 14.8% etc. The Z scores of BMD at the lumbar spine and trochanter in homozygous 194/194bp genotype group were higher than any other genotype. The frequency of 194/194bp genotype in osteoporotic women was different from that in normal BMD or osteopenic group. Conclusion: IGF-Ⅰ gene CA polymorphism may be a genetic factor which affects BMD at the lumbar spine and trochanter.
당뇨병 환자와 정상 혈당 환자에서 폐결핵의 임상적, 방사선학적 차이
박형욱 ( Hyung Wook Park ),도경록 ( Kyong Rock Do ),전은경 ( Eun Kyoung Jeon ),박진영 ( Jin Young Park ),이자영 ( Ja Young Lee ),김지은 ( Ji Eun Kim ),박용근 ( Young Kun Park ),이상록 ( Sang Rok Lee ),안진영 ( Jin Young An ) 대한결핵 및 호흡기학회 2008 Tuberculosis and Respiratory Diseases Vol.64 No.4
Se Na Jang,Sung Ho Her,Kyong Rock Do,Joon Sung Kim,Hee Jeong Yoon,Jong Min Lee,Seung Won Jin 대한내과학회 2008 The Korean Journal of Internal Medicine Vol.23 No.4
A coronary arteriovenous (AV) fistula consists of a communication between a coronary artery and a cardiac chamber, a great artery or the vena cava. It is the most common anomaly that can affect coronary perfusion. Yet bilateral involvement of a coronary fistula, constitutes an uncommon subgroup of coronary AV fistulas. We herein report on a case of bilateral coronary AV fistula that was coexistent with variant angina originating from the distal right ventricular branch of the right coronary artery and the distal septal branch of the left anterior descending artery, and the latter drained into the right ventricle.
탄소섬유 강화 에폭시 수지 복합재료의 열안정성 및 기계적 계면특성에 미치는 SiC 표면처리 영향
박수진 ( Soo Jin Park ),오진석 ( Jin Seok Oh ),이재락 ( Jae Rock Lee ),이경엽 ( Kyong Yop Rhee ) 한국복합재료학회 2003 Composites research Vol.16 No.3
본 연구에서는 화학적 표면처리에 따른 탄화규소(SiC)의 표면특성 변화가 탄소섬유강화 에폭시 복합재료의 열안정성 및 기계적 계면물성에 미치는 영향을 조사하였다. 표면처리 된 탄화규소의 표면특성은 산·염기도와 접촉각 측정을 통하여 알아보았으며, 열안정성은 TGA를 이용하여 조사하였다. 제조한 복합재료의 기계적 계면물성은 ILSS와 임계세기인자(K_(IC), 그리고 critical strain energy release rate(G_(IC)를 통하여 고찰하였다. 실험 결과 산 처리된 SiC(A-SiC)는 미처리된 SiC(V-SiC)나 염기처리 된 SiC(B-SiC)에 비하여 산도가 증가하였다. 접촉각 측정 결과, 화학적 표면처리는 극성요소의 증가에 기인하는 SiC의 표면자유에너지를 증가시켰다. 이와 같은 물성들은 양극산화로 향상되어졌는데, 이는 좋은 젖음성이 최종 복합재료의 섬유와 매트릭스 사이의 계면결합력을 증가시키는데 중요한 역할을 하기 때문인 것으로 사료된다. In this work the effect of surface treated SIC on thermal stability and mechanical interfacial properties of carbon fibedepoxy resin composites. The surface properties of the SIC were determined by acidbase values and contact angles. The thermal stabilities of carbon fibedepoxy resin composites were investigated by TGA. The mechanical interfacial properties of the composites were studied in ILSS, critical stress intensity factor (Kc), and critical strain energy release rate(&) measurements. As a result, the acidically treated SiC(A-Sic) had higher acid value than untreated SiC(V-Sic) or basically treated SiC(B-Sic). According to the contact angle measurements, it was observed that chemical treatments led to an increase of surface free energy of the SIC surfaces, mainly due to the increase of the specific(po1ar) component. The mechanical interfacial properties of the composites including ILSS, Klc, and Glc had been improved in the specimens treated by chemical solutions. These results were explained that good wetting played an important role in improving the degree of adhesion at interfaces between SIC and epoxy resin matrix.