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Many state-of-the-art perceptual image quality assessment (IQA) algorithms share a common two-stage structure: local quality/distortion measurement followed by pooling. While significant progress has been made in measuring local image quality/distortion, the pooling stage is often done in ad-hoc ways, lacking theoretical principles and reliable(More)
BACKGROUND Because of the rapid change in lifestyle in China, there is concern that diabetes may become epidemic. We conducted a national study from June 2007 through May 2008 to estimate the prevalence of diabetes among Chinese adults. METHODS A nationally representative sample of 46,239 adults, 20 years of age or older, from 14 provinces and(More)
Progress in genome research has made it possible to develop new SSR markers by bioinformatics in a relatively narrow region of genome. To realize it, the first thing is to search for potential SSR sites. Any known methods have more or less defects. Efforts were made to develop a local SSR sites searching software in this study. The resultant software,(More)
Holt-Oram syndrome is a developmental disorder affecting the heart and upper limb, the gene for which was mapped to chromosome 12 two years ago. We have now identified a gene for this disorder (HOS1). The gene (TBX5) is a member of the Brachyury (T) family corresponding to the mouse Tbx5 gene. We have identified six mutations, three in HOS families and(More)
Reduced-reference image quality assessment (RRIQA) methods estimate image quality degradations with partial information about the ldquoperfect-qualityrdquo reference image. In this paper, we propose an RRIQA algorithm based on a divisive normalization image representation. Divisive normalization has been recognized as a successful approach to model the(More)
Computer-aided diagnostic (CAD) schemes have been developed to assist radiologists in the early detection of lung cancer in radiographs and computed tomography (CT) images. In order to improve sensitivity for nodule detection, many researchers have employed a filter as a preprocessing step for enhancement of nodules. However, these filters enhance not only(More)
BACKGROUND The available information on the epidemic of drug-resistant tuberculosis in China is based on local or regional surveys. In 2007, we carried out a national survey of drug-resistant tuberculosis in China. METHODS We estimated the proportion of tuberculosis cases in China that were resistant to drugs by means of cluster-randomized sampling of(More)
Falls are dangerous for the aged population as they can adversely affect health. Therefore, many fall detection systems have been developed. However, prevalent methods only use accelerometers to isolate falls from activities of daily living (ADL). This makes it difficult to distinguish real falls from certain fall-like activities such as sitting down(More)
n engl j med 364;25 nejm.org june 23, 2011 2469 2. Litvak E, ed. Managing patient flow in hospitals: strategies and solutions. 2nd ed. Oakbrook Terrace, IL: Joint Commission Resources, 2009. 3. Moving patients smoothly through acute care settings: IHI Innovation Series white paper. Boston: Institute for Healthcare Improvement, 2003. (http://www.IHI.org.) 4.(More)
BACKGROUND Severe hypoglycemia may increase the risk of a poor outcome in patients with type 2 diabetes assigned to an intensive glucose-lowering intervention. We analyzed data from a large study of intensive glucose lowering to explore the relationship between severe hypoglycemia and adverse clinical outcomes. METHODS We examined the associations between(More)