4 research outputs found

    Multiple Feasible Paths in Ant Colony Algorithm for mobile Ad-hoc Networks with Minimum Overhead

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    Mobile ad-hoc networks are infrastructure-less networks consisting of wireless, possibly mobile nodes which are organized in peer-to-peer and autonomous fashion. The highly dynamic topology, limited bandwidth availability and energy constraints make the routing problem a challenging one. Ant colony optimization (ACO) is a population based meta-heuristic for combinatorial optimization problems such as communication network routing problem. In real life, ants drop some kind of chemical substances to mark the path that they used. Then on their way, back they choose the path with the highest pheromones which becomes the shortest path. But Ant net Algorithms may cause the network congestion and stagnation. Here, multiple optimal paths are proposed with negligible overhead in spite of single optimal path in Ant net routing algorithm, so that the problem of stagnation can be rectified. This paper proposes an improved Multiple Feasible Paths in Ant Colony Algorithm for mobile Ad-hoc Networks with Minimum Overhead

    An audit on the clinical and laboratory profile of patients with different variants of Guillain-Barre syndrome and effect of various treatment strategies on their recovery

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    Background: Guillain-Barre syndrome (GBS) is an immune-mediated disorder of the peripheral nervous system, causing muscle weakness, paralysis, and sensory deficits. Its treatment mainly involves supportive care, immunomodulatory therapies such as intravenous immunoglobulin (IVIg) and plasma exchange (PE), and rehabilitation. Several randomized controlled trials (RCTs) and meta-analyses have evaluated the efficacy and safety of apheresis in GBS, but the results have been conflicting and limited by methodological issues. Methods: This is a retrospective study with a sample of 30 patients carried out at neurology OPD of tertiary care centre in Pune, Maharashtra over a period of 32 months from July 2020 and February 2023. Patients were followed up for six months, and their outcomes were compared in terms of the improvement of clinical disability scores, the need for mechanical ventilation, and the time to recovery of walking ability and other functional outcomes. Results: Apheresis treatment significantly improved the clinical disability scores and NCV recovery of patients with GBS in comparison to IVIg and corticosteroids. Moreover, patients who received apheresis treatment showed a shorter time to recovery of walking ability and other functional outcomes than those who did not. Symptomatic differences were seen between patients with different subtypes of GBS, but there was no difference in the response to apheresis or IVIg between subtypes. Conclusions: Treatment with apheresis should be considered in patients not responding to conservative management. Earlier treatment with apheresis has shown to have good clinical and electrophysiological outcomes regardless of the GBS subtype

    ANALYSIS OF UNIPATH AND MULTIPATH ROUTING PROTOCOLS IN MOBILE ADHOC NETWORKS.

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    A MANET is an interconnection of mobile devices by wireless links, which forms a dynamic topology. Routing protocols play a vital role in transmission of data across the network. The two major classifications of routing protocols are unipath and multipath. In this paper, we have evaluated the performance of a widely used on-demand unipath routing protocol called AODV and multipath routing protocol AOMDV and MDART . These protocol has been selected due to its edge over other protocols in various aspects, such as reducing delay, routing load etc. The evaluation of all the protocols is carried out in terms of different scenarios using NS2
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