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Lee, Donghan,Lee, Weontae Korean Magnetic Resonance Society 1998 Journal of the Korean Magnetic Resonance Society Vol.2 No.1
The cross peak intensities versus mixing times of 2D NOESY spectrum for a corepressor L-trp were simulated for the case of a ligand exchanging between free (AX) and bound (A'X') forms in protein/DNA complex. The direct NOE (I(AX)) of the free ligand exhibited a small positive intensity indicative of the strong dominant influence of the bound ligand. The exchange-mediated NOE peak (I(AX')) was very sensitive to corepressor exchange. However, both diagonal (I(A'A')) and direct NOE (I(A'X')) intensities of the bound ligand were not affected much at initial stage. Both peaks were severely influenced by exchange at mixing times of greater than 100 ms. In conclusion, since the NOE intensity is a function of exchange rate, the exchange effect should be considered to properly extract accurate distance information for bound ligand in the presence of conformational exchange.
( Donghan Kim ),( Jeong Gwan Cho ),( Ki Hong Lee ),( Min Goo Lee ),( Keun Ho Park ),( Doo Sun Sim ),( Nam Sik Yoon ),( Hyun Ju Yoon ),( Kye Hun Kim ),( Young Joon Hong ),( Ju Han Kim ),( Youngkeun Ahn 대한내과학회 2011 대한내과학회 추계학술발표논문집 Vol.2011 No.1
Background and study objective: The anterior ischemic pattern such as negative T wave is most frequent Electrocardiographic (ECG) sign of pulmonary thromboembolism (PTE) or anterior wall acute myocardial infarction (AMI). The aim of the present study was to evaluate the distinguishable findings between AMI and PTE in patients with negative T wave in anterior lead. Subject and methods: We analyzed 12-lead ECG, echocardiography and laboratory finding of 151 patients (PTE group; n=51, AMI group; n=100) with the diagnosis of PTE and AMI confirmed by computed tomography or coronary angiography, at Chonnam National University Hospital, between July 2008 and July 2011. The ECG analysis included S1Q3T3 complex(negative S waves in lead I and negative Q or T waves in lead III), sinus tachycardia(>100 beats/min), right bundle branch block (RBBB), low QRS voltage in peripheral leads and pulmonary P wave in lead II. Echocardiographic findings was included both ventricular systolic function and right ventricular systolic pressure (RVSP). We compared the ECG, echocardiography and biomarkers to distinguish from PTE and AMI. Results: S1Q3T3 was the most frequent ECG finding (42%), and was more common in PTE than AMI (42% vs. 8.1%, p<0.001). Also sinus tachycardia (36% vs. 6.1%, p<0.001), low QRS in peripheral leads (24% vs. 8.1%, p=0.011), pulmonary P wave in lead II (10% vs. 1%, p=0.016) was more common in AMI than PTE. In echocardiography, RVSP (56 mmHg vs. 29.85 mmHg, p<0.001) and systolic function (65.64% vs. 56.41%, p<0.001) were significantly higher in PTE than AMI. In laboratory findings, D-dimer (0.7851 vs. 0.2112, p<0.001) was significantly higher and Troponin-I was significantly lower (0.4814 vs. 5.7928, p<0.001) in PTE than AMI. Conclusion: The S1Q3T3 in ECG, elevated RVSP in echocardiography, and D-dimer in laboratory findings were useful to distinguish AMI from PTE in patients with negative T wave in anterior lead.
Static Steering Effort 주관-객관 평가간의 상관관계 연구
이동한(Donghan Lee),조철호(Cheolho Cho),홍찬기(Chanki Hong) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
One of the long-running themes throughout vehicle dynamics research has been a desire for a better understanding of the correlation between subjective and objective measures for vehicle handling. This research's goal is to analyze what the driver feels on the steering wheel from the static state, and determine parameter ranges where a driver experiences good steering feel. Several steering feel properties will be shown, which have been validated in a real vehicle during static measurement.