38 research outputs found

    Comparative Study between Rectangular Windows and Circular Windows Based Disparity-Map by Stereo Matching

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    Stereo matching is the basic problem to achieve human like vision capability to machines and robots. Stereo vision researches produced many local and global algorithms for stereo correspondence matching. There are two popular methods one is rectangular window-based cost aggregation another is circular window-based cost aggregation used for solving correspondence problem have attracted researches as it can be implemented in real time using parallel processors. In this paper we have done comparative study between rectangular windows and circular windows based disparity map by stereo matching. Motivated by human stereo vision, the technique uses to enhance the strategy of finding the best match to compute dense disparity map. Performance of the both method is efficient

    Editorial Board __________________________________________________________________________________________ ELECTRONIC CUSTOMER RELATIONSHIP MANAGEMENT (ECRM): BENEFITS AND TRENDS

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    ABSTRACT Electronic Customer Relationship Management (ECRM) refers to the marketing activities, tools and techniques delivered via the Internet which includes email, world wide web, chat rooms, e-forums, etc., with a specific aim to locate, build and improve long term customer relationships to enhance their individual potential. The Electronic Customer Relationship Management (ECRM) can include the etechnologies and new e-channels including mobile telephony, customer call and contact centre's and voice response systems. This implies that electronic relationship management (ECRM) using mobile marketing may indeed offer an effective way to reach, and build relationships with, demanding customers in rapidly changing markets. Another e-technology offering companies opportunities for managing customer interactions is voice response systems

    : RhoA mediates osteosarcoma cell apoptosis

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    Osteosarcoma is the most common primary bone tumour in young adults. Despite improved prognosis, resistance to chemotherapy remains responsible for failure of osteosarcoma treatment. The identification of signals that promote apoptosis may provide clues to develop new therapeutic strategies for chemoresistant osteosarcoma. Here, we show that lipophilic statins (atorvastatin, simvastatin, cerivastatin) markedly induce caspases-dependent apoptosis in various human osteosarcoma cells, independently of bone morphogenetic protein (BMP)-2 signaling and cell differentiation. Although statins increased BMP-2 expression, the proapoptotic effect of statins was not prevented by the BMP antagonist noggin, and was abolished by mevalonate and geranylgeranylpyrophosphate, suggesting the involvement of defective protein geranylgeranylation. Consistently, lipophilic statins induced membrane RhoA relocalization to the cytosol and inhibited RhoA activity, which resulted in decreased phospho-p42/p44- mitogen-activated protein kinases (MAPKs) and Bcl-2 levels. Constitutively active RhoA rescued phospho-p42/p44-MAPKs and Bcl-2 and abolished statin-induced apoptosis. Thus, lipophilic statins induce caspase-dependent osteosarcoma cell apoptosis by a RhoA-p42/p44 MAPKs-Bcl-2-mediated mechanism, independently of BMP-2 signaling and cell differentiatio
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