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Image segmentation is often required as a preliminary and indispensable stage in the computer aided medical image process, particularly during the clinical analysis of magnetic resonance (MR) brain images. In this paper, we present a modified fuzzy c-means (FCM) algorithm for MRI brain image segmentation. In order to reduce the noise effect during(More)
  • Jurong Yang, Dapeng Chen, Yani He, Alicia Meléndez, Zhe Feng, Quan Hong +5 others
  • 2011
Evidence for a regulatory role of the miR-34 family in senescence is growing. However, the exact role of miR-34 in aging in vivo remains unclear. Here, we report that a mir-34 loss-of-function mutation in Caenorhabditis elegans markedly delays the age-related physiological decline, extends lifespan, and increases resistance to heat and oxidative stress. We(More)
Sirtuin 3 (SIRT3) is one of the seven mammalian sirtuins, which are homologs of the yeast Sir2 gene. SIRT3 is the only sirtuin reported to be associated with human life span. Many recent studies have indicated that SIRT3 levels are elevated by exercise and caloric restriction, but whether SIRT3 influences cell senescence under stressed conditions in human(More)
A Link Quality Estimation based Routing protocol (LQER) is proposed to meet the high reliability of transmitting data in water environment monitoring in wetlands based on (m,k)-firm link quality estimating. It considers both energy efficiency and link qualities when the route is selected, which makes routing data more reliable and decreases the probability(More)