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Yahang Tan,Jia Zhou,Ying Zhou,Xiaobo Yang,Junjie Yang,Yundai Chen 대한영상의학회 2017 Korean Journal of Radiology Vol.18 No.3
Objective: This study sought to determine whether variables detected on coronary computed tomography angiography (CCTA) would predict plaque progression in non-culprit lesions (NCL). Materials and Methods: In this single-center trial, we analyzed 103 consecutive patients who were undergoing CCTA and percutaneous coronary intervention (PCI) for culprit lesions. Follow-up CCTA was scheduled 12 months after the PCI, and all patients were followed for 3 years after their second CCTA examination. High-risk plaque features and epicardial adipose tissue (EAT) volume were assessed by CCTA. Each NCL stenosis grade was compared visually between two CCTA scans to detect plaque progression, and patients were stratified into two groups based on this. Logistic regression analysis was used to evaluate the factors that were independently associated with plaque progression in NCLs. Time-to-event curves were compared using the log-rank statistic. Results: Overall, 34 of 103 patients exhibited NCL plaque progression (33%). Logistic regression analyses showed that the NCL progression was associated with a history of ST-elevated myocardial infarction (odds ratio [OR] = 5.855, 95% confidence interval [CI] = 1.391–24.635, p = 0.016), follow-up low-density lipoprotein cholesterol level (OR = 6.832, 95% CI = 2.103–22.200, p = 0.001), baseline low-attenuation plaque (OR = 7.311, 95% CI = 1.242–43.028, p = 0.028) and EAT (OR = 1.015, 95% CI = 1.000–1.029, p = 0.044). Following the second CCTA examination, major adverse cardiac events (MACEs) were observed in 12 patients, and NCL plaque progression was significantly associated with future MACEs (log rank p = 0.006). Conclusion: Noninvasive assessment of NCLs by CCTA has potential prognostic value.
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梁熺錫 慶尙大學校 1986 論文集 Vol.25 No.2
An attempt is made in this note to review critically the changes of framework of the fundamental concepts made by the dominant neo-Classical theory of value and distribution in the process submerging the Classical surplus approach to profits upon capital on behalf of the marginal productivity approach. The literatual survey performed in terms of a methodological assumption that the concepts of competition and equilibrium constitute the very base of economic science leads to two general conclusions as follows; (1) Equilibrium analysis based upon the hypothetical changes is one of the results of the Marginalist attempts to replace the Classical surplus approach, where the level of output is assumed to be given, by the marginal productivity approach which requires changes either in output or in input. (2) The concept of competition has been changed in its main content from the uniform rate of profit to the economic agents assumed to be mere price-takers, in spite of the ever increasing capitalist realism of concentration and centralisation of capital, and the ever shortening of the periods during which equilibrium analysis is given reality. This could be accounted for by the fact that the demand-and-supply theory of price determination based upon price-taking economic agents performs a role as a protective belt for the marginal productivity theory of distribution by submerging itself in the theories of imperfect competition and monopoly.
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KIM, JONG-SHIK,SAKAI, MASAO,LEE, SI-KYUNG,YAHANG, CHAHNG-SOOL,MATSUGUCHI, TATSUHIKI 한국미생물 · 생명공학회 2001 Journal of microbiology and biotechnology Vol.11 No.1
In order to investigate the role of bacterial chemotaxis in root colonization, the chemotaxis potential of bacteria isolated from spinach roots was compared with that of bacteria from nonrhizosphere soil, with reference to the plant age (1,000isolates), soil moisture conditions (1,400isolates), and part of the root (200isolates). The % CT (% occurrence of chemotaxis (+) isolates among total bacterial isolates) of the root isolates significantly fluctuated during the plant growth period, reaching a maximum after 10-15 days of growth. At this time period, the maximum % CT for the root isolates was around 70-80% CT under a soil moisture of 50% WFP (% volume of waterfilled pores in total soil pores), and then gradually reduced with an increasing % WFP. The results of the chemotaxis potential of each of the 100 isolates from the spinach roots and nonrhizosphere soil under various % WFP demonstrated that the % CT of the root isolates were significantly higher than those of isolates from the nonrhizosphere soil under a wide range of soil moisture content (35-80% WFP). Furthermore, the % CT value (80%) from the upper root was significantly higher than that (55%) from the lower root. Compared with the % CT values of the roots, the values from the nonrhizosphere soil did not significantly vary relative to the plant age or % WFR These results indicate that chemotaxis would appear to be a major factor in bacterial root colonization.
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