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We start with a mathematical definition of a real interval as a closed, connected set of reals. Interval arithmetic operations (addition, subtraction, multiplication, and division) are likewise defined mathematically and we provide algorithms for computing these operations assuming exact real arithmetic. Next, we define interval arithmetic operations on(More)
N-Myc downstream-regulated gene 2 (NDRG2) has been demonstrated to influence the metastatic potential of hepatocellular carcinoma and breast cancer cells by regulating CD24 expression. The aim of this study was to investigate the roles of NDRG2 and CD24 in the clinical pathology of lung adenocarcinoma and to explore whether the expression of these two(More)
In this study, we investigated the expression patterns and functional roles of microRNA 127 (miR-127) and its target gene Formin-Like 3 (FMNL3) in human esophageal squamous cell carcinoma (ESCC). Quantitative RT-PCR (qRT-PCR) was used to compare miR-127 expression between ESCC cell lines and normal esophageal epithelium cell line, as well as paired ESCC(More)
PURPOSE To investigate the prevalence of phosphatidylinositol 3-kinase (PIK3CA) gene amplification in lung cancer, and to explore its prognostic value. METHODS A total of 647 lung tumor samples from 290 patients were included in the study. The ratio of PIK3CA signals/centromere 3 signals in cancer cells was estimated by fluorescence in situ hybridization(More)
In recent years, thoracoscopic lobectomy has been rapidly developing and applied in China with an ever growing list of indications as the resectable range has been evolving from the peripheral type to the central type, from a diameter less than 3 cm to greater than 5 cm, and from lobectomy to pneumonectomy and segmental lung resection. This technique has(More)
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