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In remote control systems, efficient representation of control signals is one of the crucial issues because of bandwidth-limitedness of the communication channel, such as a wireless communication link, between the controller and the controlled object. Recently, a new method based on compressed sensing has been proposed, in which control signals are sparsely representation based on l^1-l^2 optimization. There exist however so many methods other than l^1-l^2 optimization for compressed sensing. In this study, we perform a comparative study of sparsity-promoting methods in compressed sensing, and reveal their advantages and disadvantages by simulation in view of remote control over rate-limited networks.
This paper shows that income convergence in an open-economy setting hinges upon how the time-discount rate of the households is determined. As opposed to the case of constant time-discount rate where cross-country income divergence may emerge, the small-open economy may catch up with the rest of the world if the discount rate increases with consumption. In contrast, either if the discount rate decreases with consumption or if future-oriented investment of the household lowers the time- discount rate, then the small-open economy fails to catch up with the rest of the world under free trade of commodities.
Humans have a superior ability to integrate spatially separate visual information into an entire image. In contrast, comparative cognitive studies have demonstrated that nonhuman primates and avian species are superior in processing relatively local features; however, animals in these studies were required to ignore local shape when they perceived the global configuration, and no studies have directly examined the ability to integrate temporally separate events. In this study, we compared the spatio-temporal visual integration of chimpanzees and humans by exploring dynamic shape perception under a slit-viewing condition. The findings suggest that humans exhibit greater temporal integration accuracy than do chimpanzees. The results show that the ability to integrate local visual information into a global whole is among the unique charac...
Most terrestrial plants interact with diverse clades of mycorrhizal and root-endophytic fungi in their roots. Through belowground plant-fungal interactions, dominant plants can benefit by interacting with host-specific mutualistic fungi and proliferate in a community based on positive plant-mutualistic fungal feedback. On the other hand, subordinate plant species may persist in the community by sharing other sets (functional groups) of fungal symbionts with each other. Therefore, revealing how diverse clades of root-associated fungi are differentially hosted by dominant and subordinate plant species is essential for understanding plant community structure and dynamics. Based on 454-pyrosequencing, we determined the community composition of root-associated fungi on 36 co-occurring plant species in an oak-dominated forest in northern Jap...
The inflammasome adaptor ASC contributes to innate immunity through the activation of caspase-1. Here we found that signaling pathways dependent on the kinases Syk and Jnk were required for the activation of caspase-1 via the ASC-dependent inflammasomes NLRP3 and AIM2. Inhibition of Syk or Jnk abolished the formation of ASC specks without affecting the interaction of ASC with NLRP3. ASC was phosphorylated during inflammasome activation in a Syk- and Jnk-dependent manner, which suggested that Syk and Jnk are upstream of ASC phosphorylation. Moreover, phosphorylation of Tyr144 in mouse ASC was critical for speck formation and caspase-1 activation. Our results suggest that phosphorylation of ASC controls inflammasome activity through the formation of ASC specks.
会期・会場: 2012年3月17日(土)10:00-17:00 : 神戸国際会議場メインホール ; 後援: 読売新聞社、(公財)京都大学教育研究振興財団、神戸大学
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