http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kim, D. Y.,Ku, J.,Chang, W. H.,Park, T. H.,Lim, J. Y.,Han, K.,Kim, I. Y.,Kim, S. I. Blackwell Publishing Ltd 2010 Acta neurologica Scandinavica Vol.121 No.3
<P>Kim DY, Ku J, Chang WH, Park TH, Lim JY, Han K, Kim IY, Kim SI. Assessment of post-stroke extrapersonal neglect using a three-dimensional immersive virtual street crossing programActa Neurol Scand: 2010: 121: 171–177.© 2009 The Authors Journal compilation © 2009 Blackwell Munksgaard.</P><P>Objective – </P><P>To investigate the potential of our newly developed three-dimensional immersive virtual reality (VR) program modeled on a real street crossing as an assessment tool for extrapersonal neglect in stroke patients.</P><P>Methods – </P><P>Thirty-two patients with right-hemispheric stroke (neglect group, 16; non-neglect group, 16) were enrolled. The deviation angle, reaction time, left-to-right reaction time ratio, visual and auditory cue rates, and failure rate were evaluated during missions to keep a virtual avatar safe from a traffic accident in the VR program. The line bisection test and letter cancellation test were also evaluated.</P><P>Results – </P><P>The deviation angle, left-to-right reaction time ratio, left visual and auditory cue rates and left failure rate in the VR program showed significant differences between the two groups (<I>P </I><<I> </I>0.05). Depending on the direction of approach of the virtual car, the left parameters were significantly higher than the right parameters in the neglect group (<I>P </I><<I> </I>0.05). In the neglect group, the line bisection test correlated significantly with the deviation angle (<I>P </I><<I> </I>0.05). None of the other virtual reality parameters significantly correlated with the paper and pencil tests.</P><P>Conclusion – </P><P>Post-stroke neglect in the extrapersonal space can be easily and safely detected and measured using our three-dimensional immersive virtual street crossing program.</P>
( Jong Kook Moon ),( Beom Ku Han ),( T. Doohun Kim ),( Do Hyun Jo ) 생화학분자생물학회 2010 BMB Reports Vol.43 No.11
We report the tissue-specific distribution of chitinolytic activity in Korean ginseng root and characterize two 31-kDa chitinolytic enzymes. These two enzymes (SBF1 and SBF2) were purified 70- and 81-fold with yields of 0.75 and 1.25%, respectively, and exhibited optimal pH and temperature ranges of 5.0-5.5 and 40-50℃. With [3H]-chitin as a substrate, Km and Vmax values of SBF1 were 4.6 mM and 220 mmol/mg-protein/h, respectively, while those of SBF2 were 7.14 mM and 287 mmol/mg-protein/h. The purified enzymes showed markedly less activity with p-nitrophenyl-N-acetylglucosaminide and fluorescent 4-methylumbelliferyl glycosides of D-N-acetylglucosamine oligomers than with [3H]-chitin. End-product inhibition of both enzymes demonstrated that both are endochitinases with different N-acetylglucosaminidase activity. Furthermore, the NH2-terminal sequence of SBF1 showed a high degree of homology with other plant chitinases whereas the NH2-terminal amino acid of SBF2 was blocked. [BMB reports 2010; 43(11): 726-731]
자동 영상분석 계기를 이용한 골 유도재생능력의 분석에 관한 조직계측학적 연구
김태일,구영,류인철,정종평,한수부,최상묵,손성희,Kim, T.I.,Ku, Y.,Rhyu, I.C.,Chung, C.P.,Han, S.B.,Choi, S.M.,Son, S.H. 대한치주과학회 1996 Journal of Periodontal & Implant Science Vol.26 No.3
The assessment of alveolar bone changes on dental radiographs to indicate progression of periodontal diseases or healing response to therapy is routine procedure. However, the diagnostic accuracy in detecting small alveolar bone changes is very limited. Recently, guided bone regeneration therapy is popular, but the quantification of new bone is somewhat difficult with conventional evaluation method. To quantificate the amount of new bone, various evaluating methods have been introduced including histomorphometry, radiomorphometry, biochemical analysis, X-ray probe microanalysis, scanning electron microscope backscatter method. In this study, guided bone regeneration using resorbable membrane with & without PDGF-BB is quatificated through histomorphmetry to evaluate the efficacy of histomorphometric analysis. 4 beagle dogs and 8 Sprague-Dawley rats were selected as experimental animals. In beagle dog experiment, $4{\times}4mm$ Class II defects were created in maxillary both second premolars, and biodegradable membrane containing PDGF-BB(experimental group) were covered over one defect, and same membrane without PDGF-BB(control group) were covered over the other defect. At 2 weeks, 5 weeks after surgery, each beagle dogs were sacrificed, and the tissues were treated by undecalcified fixation. In Sprague-Dawley rat experiment, 5mm round defect were created in temporal bone, the same membranes were covered on the defects. At 1 week, 2 weeks after surgery, each rats were sacrificed, and undecalcified fixation were taken. After grinding tissue specimen, we analyse them histomorphometrically using image analysis system. In beagle dog 2 weeks specimens, new bone formation area were $0.03123mm^2$ in experimental group,and $0.03012mm^2$ in control group. At 5 weeks specimens, $0.15324mm^2$ in experimental group, and $0.09123mm^2$ in control group. In Sprague-Dawley rat specimens, new bone fomation area were $0.20448mm^2$ in 1 week experimental group, $0.03604mm^2$ in 1 week control group. At 2 weeks specimens, $0.46349mm^2$ in experimental group, $0.17741mm^2$ in control group. The results indicated that histomorphometric analysis of new bone formation using image analysis system is very effective quantification method to evaluate the efficacy of treatment modalities.