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이계영,민경인,정수일,박재범,안재진,김도균,김철환 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.4
Soft tissue expansion is widely used technique in oral & maxillofacial reconstruction and provide new method of reconstruction in posttraumatic alopecia, post burn, wide scar, congenital deformity, benign tumor, tattoo, etc. Expanded tissue flaps have the advantage of increased vascularity, proximity to the defect, and similarity of color and texture. They also preclude the need to advance flaps from distant sites. Tissue expansion can be used to form a well vascularized cavity to accomodate and nourish bone grafts. The following report describes the uses of tissue expanders by allowing bone grafting to correct both soft and bony defects of mandibular region
공재환 ( Jae Hwan Kong ),이상석 ( Sang Seok Lee ),강하얀 ( Ha Yan Kang ),박재석 ( Jae Seuk Park ) 대한결핵 및 호흡기학회 2008 Tuberculosis and Respiratory Diseases Vol.64 No.2
연구배경: 결핵의 치료력이 없는 결핵환자에서 발생하는 초회 약제내성은 결핵관리에 있어서 심각한 문제이다. 그러나 우리나라, 특히 민간의료기관에서 치료받는 폐결핵환자들의 초회 약제내성률에 대해서 잘 알려져 있지 않다. 본 연구에서는 천안지방의 한 3차병원에서 폐결핵환자들의 초회 약제내성률과 약제내성의 위험요소에 대해서 알아보았다. 방법: 2005년 9월부터 2007년 9월까지 단국대학교병원에서 객담 결핵균 배양검사 양성인 초치료 폐결핵환자 모두에 대해서 일차약과 이차약에 대한 약제감수성 검사를 시행하고 초회 약제내성의 양상과 함께 약제내성의 위험요소을 분석하였다. 또한 약제감수성 검사 결과가 치료 처방에 미치는 영향을 분석하였다. 결과: 총 156명의 초치료 폐결핵 환자에 대해서 약제 감수성 검사를 시행하였는데 한 가지 이상의 약제에 내성을 보인 환자는 21명(15.6%)이었으며 이소니아지드와 리팜핀에 동시 내성을 보이는 다제내성 환자는 1명(0.6%)이었다. 임상소견 중 초회 약제내성을 예측할 수 있는 독립적인 위험요소는 없었다. 약제감수성 검사 결과에 의해 15명(9.6%)의 환자에서 치료처방의 변경이 있었다. 결론: 폐결핵에서 초회 약제내성은 흔히 관찰되며 초 치료 폐결핵환자에서 약제감수성 검사는 환자치료에 도움이 된다. Background: Drug resistant tuberculosis (TB) in patients who have not received previous TB treatment (initial drug resistance) is a serious problem for the control of TB. However, prevalence of initial drug resistance among pulmonary TB patients has not been well characterized in Korea, especially in the private sector. We assessed the prevalence of initial drug resistance and evaluated the risk factors for drug resistance in pulmonary TB patients, at a regional tertiary hospital in Cheonan. Methods: We performed a drug susceptibility test for both first and second line anti-TB drugs in all culture-confirmed pulmonary TB patients who had not received a previous TB treatment at Dankook University Hospital from September 2005 to September 2007. In addition, we evaluated the initial drug resistance pattern and clinical characteristics of patients to evaluate the risk factors for initial drug resistance. We also assessed the influence of the drug susceptibility test results on the treatment regimen. Results: Of the total 156 cases where the drug susceptibility test was performed, resistance to at least one anti-TB drug was found in 21 cases (15.6%) and multidrug resistance, where TB was resistant to at least isoniazid and rifampin, was found in one case (0.6%). Multivariate logistic regression showed no clinical characteristics were independently associated with initial drug resistance. Of the total 156 patients who underwent the drug susceptibility test, the treatment regimen was changed for 15 patients (9.6%) according to the results of the drug susceptibility test. Conclusion: Initial drug resistance is common and the drug susceptibility test is informative for pulmonary TB patients who have not received previous TB treatment. (Tuberc Respir Dis 2008;64:95-101)
김배환 ( Bae Hwan Kim ),이준혁 ( Joon Hyuk Lee ),백두산 ( Du San Baik ),윤승욱 ( Seoung Wook Yun ),김지환 ( Ji Hwan Kim ),공재환 ( Jae Hwan Kong ),김석배 ( Seok Bae Kim ) 대한소화기학회 2007 대한소화기학회지 Vol.50 No.6
Gastrointestinal stromal tumor (GIST) is an uncommon mesenchymal tumor of the gastrointestinal tract and is generally located in the stomach and small intestine. They usually present with abdominal pain, gastrointestinal bleeding, and palpable mass. Some patients present with rare symptoms that are more common in malignant GIST. Malignant GIST combined with a liver abscess has not been reported yet in the literatures. We report a case of 67-year-old woman who suffered from liver abscess combined by malignant GIST with central necrosis and fistula in the ileum. She complained of fever, chills, and abdominal pain. Abdominal CT scan showed huge liver abscess and ileal mass with air pocket. Small bowel series showed contrast material filling into the ileal GIST mass. An operation was performed and the final diagnosis was malignant GIST of the ileum with invasion into the sigmoid colon and urinary bladder. (Korean J Gastroenterol 2007;50:393-397)
Kong, Qingyu,Lee, Jae Hyuk,Kim, Kyung Hwan,Kim, Joonghan,Wulff, Michael,Ihee, Hyotcherl,Koch, Michel H. J. American Chemical Society 2010 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.132 No.8
<P>Ultrafast (ps) time-resolved X-ray scattering was used to study the structural dynamics of Ru<SUB>3</SUB>(CO)<SUB>12</SUB> in cyclohexane after photolysis at 260 nm. Two intermediates form after 100 ps at the onset of the reaction: Ru<SUB>3</SUB>(CO)<SUB>10</SUB> for the CO loss channel and Ru<SUB>3</SUB>(CO)<SUB>11</SUB>(μ-CO) for the metal−metal cleavage channel. In our previous study at 390 nm, by contrast, three intermediates were observed simultaneously at the onset of the reaction that all relax back to Ru<SUB>3</SUB>(CO)<SUB>12</SUB> with different lifetimes. The major difference between photolysis at 260 and 390 nm is that in the first case Ru<SUB>3</SUB>(CO)<SUB>10</SUB>(μ-CO) is formed by bimolecular recombination of Ru<SUB>3</SUB>(CO)<SUB>10</SUB> with a free CO in 50 ns, whereas in the second case it forms directly from Ru<SUB>3</SUB>(CO)<SUB>12</SUB> at the onset of the reaction. The differences between the photofragmentation pathways are related to the absorption bands available at the two wavelengths. The extrema in the difference radial distribution functions (RDFs) are unambiguously assigned by decomposing the total signal into contributions from the solutes, the solvent and the solute−solvent cross-terms, and also contributions from each candidate species. The difference RDFs reveal the depletion of Ru−Ru bonds (2.88 Å) in the initial Ru<SUB>3</SUB>(CO)<SUB>12</SUB> molecule and formation of Ru<SUB>3</SUB>(CO)<SUB>10</SUB> as the major photoproduct. The high-resolution X-ray (88 keV) scattering pattern of pure liquid C<SUB>6</SUB>H<SUB>12</SUB> indicates that the solvent dynamics at early time delays is due to broadening of the intermolecular interatomic correlations at constant volume, whereas during thermal expansion at longer time delays, it results from shifts in these correlations.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/2010/jacsat.2010.132.issue-8/ja9097548/production/images/medium/ja-2009-097548_0010.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ja9097548'>ACS Electronic Supporting Info</A></P>
OVERVIEW OF SUPERCONDUCTING MAGNET POWER SUPPLY SYSTEM FOR THE KSTAR 1ST PLASMA EXPERIMENT
JAE HOON CHOI,HYUNG LYEOL YANG,HYUN SIK AHN,GYEYONG JANG,DONG KEUN LEE,KUK HEE KIM,SANG HEE HAHN,CHANG HWAN KIM,JAE SIC HONG,YONG CHU,JONG DAE KONG,SEONG LOK HONG,IN SUNG HWANG,MIN SEONG YUN,DAE KYUNG 한국원자력학회 2008 Nuclear Engineering and Technology Vol.40 No.6
The KSTAR Magnet Power Supply (MPS) was dedicated to the SC coil commissioning and 1st plasma experiment as a part of the system commissioning. Although many efforts to develop large-current power supplies that are useful for high power electronic devices have been made in various application fields, such as for large metal-plating devices, there were clear discrepancies between conventional power supply technologies and that for the SC coils due to the special SC coil load conditions. Therefore, most of the power supply technologies for the SC coils were a challenge in the domestic research area due to their limited application. However, the MPS commissioning result showed that all of the hardware and controlling software operated well, and this result finally led to the success of SC coil commissioning and the KSTAR 1st plasma experiment. This paper will describe key features of KSTAR MPS for the 1st plasma experiment, and will also report the commissioning results of the magnet power supplies.