http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cheon, Kyeong-Jun,Cho, Seoung-Won,Jang, Won-Seok,Kim, Ju-Won,Yang, Byoung-Eun Korean Association of Maxillofacial Plastic and Re 2020 Maxillofacial Plastic Reconstructive Surgery Vol.42 No.-
Background: Various types of miniplates have been developed and used for the reduction of facial bone fractures. We introduced Yang's Keyhole (YK) plate, and reported on its short-term stability. The purpose of this study was to evaluate the long-term stability of the YK plate, as a follow-up study, by examining the patients who had used the YK plate among the patients with the reduction of mandible fractures and who visited for plate removal. Methods: We reviewed the medical records of 16 patients who underwent mandibular fracture fixation using a YK plate (group I) and 17 patients who underwent mandibular fracture fixation using a conventional plate (group II). Assessment was then made on malunion, occlusal stability, discomfort during the application, and clinical symptoms. Results: From January 2015 to December 2017, a total of 36 patients underwent mandibular fracture surgery using a YK plate. A total of 16 patients received plate removal. Among them, 15 were male and 1 female. The average age was 26 years. The applied surgical sites were the 12 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of YK plate was an average of 335 days. During the same period, 45 people underwent surgery on the conventional plate. A total of 17 patients received plate removal. Among them, 15 were male and 2 females. The average age was 36 years. The applied surgical sites were the 8 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of the conventional plate was an average of 349 days. No malocclusion occurred at the time of removal, and occlusion was stable. No patient complained of joint disease or discomfort. Conclusion: The YK plate system, in which the screw was first inserted and the plate was applied, for clinical convenience did not cause any particular problem and no significant difference from the conventional plate.
Yang, Hae Kyung,Ham, Dong-Sik,Park, Heon-Seok,Rhee, Marie,You, Young Hye,Kim, Min Jung,Shin, Juyoung,Kim, On-You,Khang, Gilson,Hong, Tae Ho,Kim, Ji-Won,Lee, Seung-Hwan,Cho, Jae-Hyoung,Yoon, Kun-Ho Wolters Kluwer Health, Inc. All rights reserved. 2016 Transplantation Vol.100 No.2
<P>Background. Clinical application of encapsulated islet transplantation is hindered by low biocompatibility of capsules leading to pericapsular fibrosis and decreased islet viability. To improve biocompatibility, we designed a novel chitosan-coated alginate capsules and compared them to uncoated alginate capsules. Methods. Alginate capsules were formed by crosslinking with BaCl2, then they were suspended in chitosan solution for 10 minutes at pH 4.5. Xenogeneic islet transplantation, using encapsulated porcine islets in 1,3-galactosyltransferase knockout mice, and allogeneic islet transplantation, using encapsulated canine islets in beagles, were performed without immunosuppressants. Results. The chitosan-alginate capsules showed similar pore size, islet viability, and insulin secretory function compared to alginate capsules, in vitro. Xenogeneic transplantation of chitosan-alginate capsules demonstrated a trend toward superior graft survival (P = 0.07) with significantly less pericapsular fibrosis (cell adhesion score: 3.77 +/- 0.41 vs 8.08 +/- 0.05; P < 0.001) compared to that of alginate capsules up to 1 year after transplantation. Allogeneic transplantation of chitosan-alginate capsules normalized the blood glucose level up to 1 year with little evidence of pericapsular fibrotic overgrowth on graft explantation. Conclusions. The efficacy and biocompatibility of chitosan-alginate capsules were demonstrated in xenogeneic and allogeneic islet transplantations using small and large animal models of diabetes. This capsule might be a potential candidate applicable in the treatment of type 1 diabetes mellitus patients, and further studies in nonhuman primates are required.</P>
Diagnostic performance of on-site CT-derived fractional flow reserve versus CT perfusion
Yang, Dong Hyun,Kim, Young-Hak,Roh, Jae Hyung,Kang, Joon-Won,Ahn, Jung-Min,Kweon, Jihoon,Lee, Jung Bok,Choi, Seong Hoon,Shin, Eun-Seok,Park, Duk-Woo,Kang, Soo-Jin,Lee, Seung-Whan,Lee, Cheol Whan,Park, Oxford University Press 2017 European heart journal cardiovascular Imaging Vol.18 No.4
Economic Operation of a Data Backup Scheme for Computer Systems under Disastrous Information Threats
Won Seok Yang,Nam K. Kim 대한산업공학회 2017 Industrial Engineeering & Management Systems Vol.16 No.3
In this paper, we deal with the economic operation of a data backup scheme for various computer systems under disastrous information threats. To this end, we introduce a queueing model that combines disasters and two-stage queues. Making use of the matrix-geometric approach, we obtain its steady-state probabilities. From these results, we compute the average total cost with a recovery cost and a backup cost taken into account. With sample numerical results, we investigate the optimal backup operation that minimizes the average total cost.
Yang, Seung Won,Jang, Yo Han,Kwon, Soon Bin,Lee, Yoon Jae,Chae, Wonil,Byun, Young Ho,Kim, Paul,Park, Chan,Lee, Young Jae,Kim, Choon Kang,Kim, Young Seok,Choi, Seong Il,Seong, Baik Lin Federation of American Societies for Experimental 2018 The FASEB Journal Vol.32 No.5
<P>A novel protein-folding function of RNA has been recognized, which can outperform previously known molecular chaperone proteins. The RNA as a molecular chaperone (chaperna) activity is intrinsic to some ribozymes and is operational during viral infections. Our purpose was to test whether influenza hemagglutinin (HA) can be assembled in a soluble, trimeric, and immunologically activating conformation by means of an RNA molecular chaperone (chaperna) activity. An RNA-interacting domain (RID) from the host being immunized was selected as a docking tag for RNA binding, which served as a transducer for the chaperna function for <I>de novo</I> folding and trimeric assembly of RID-HA1. Mutations that affect tRNA binding greatly increased the soluble aggregation defective in trimer assembly, suggesting that RNA interaction critically controls the kinetic network in the folding/assembly pathway. Immunization of mice resulted in strong hemagglutination inhibition and high titers of a neutralizing antibody, providing sterile protection against a lethal challenge and confirming the immunologically relevant HA conformation. The results may be translated into a rapid response to a new influenza pandemic. The harnessing of the novel chaperna described herein with immunologically tailored antigen-folding functions should serve as a robust prophylactic and diagnostic tool for viral infections.—Yang, S. W., Jang, Y. H., Kwon, S. B., Lee, Y. J., Chae, W., Byun, Y. H., Kim, P., Park, C., Lee, Y. J., Kim, C. K., Kim, Y. S., Choi, S. I., Seong, B. L. Harnessing an RNA-mediated chaperone for the assembly of influenza hemagglutinin in an immunologically relevant conformation.</P>