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excitatory post synaptic potentials</title> <meta name="description" content="Search results for: field excitatory post synaptic potentials"> <meta name="keywords" content="field excitatory post synaptic potentials"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open 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class="col-md-9 mx-auto"> <form method="get" action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="field excitatory post synaptic potentials"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 12780</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: field excitatory post synaptic potentials</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12780</span> Oleic Acid Enhances Hippocampal Synaptic Efficacy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rema%20Vazhappilly">Rema Vazhappilly</a>, <a href="https://publications.waset.org/abstracts/search?q=Tapas%20Das"> Tapas Das </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Oleic acid is a cis unsaturated fatty acid and is known to be a partially essential fatty acid due to its limited endogenous synthesis during pregnancy and lactation. Previous studies have demonstrated the role of oleic acid in neuronal differentiation and brain phospholipid synthesis. These evidences indicate a major role for oleic acid in learning and memory. Interestingly, oleic acid has been shown to enhance hippocampal long term potentiation (LTP), the physiological correlate of long term synaptic plasticity. However the effect of oleic acid on short term synaptic plasticity has not been investigated. Short term potentiation (STP) is the physiological correlate of short term synaptic plasticity which is the key underlying molecular mechanism of short term memory and neuronal information processing. STP in the hippocampal CA1 region has been known to require the activation of N-methyl-D-aspartate receptors (NMDARs). The NMDAR dependent hippocampal STP as a potential mechanism for short term memory has been a subject of intense interest for the past few years. Therefore in the present study the effect of oleic acid on NMDAR dependent hippocampal STP was determined in mouse hippocampal slices (in vitro) using Multi-electrode array system. STP was induced by weak tetanic Stimulation (one train of 100 Hz stimulations for 0.1s) of the Schaffer collaterals of CA1 region of the hippocampus in slices treated with different concentrations of oleic acid in presence or absence of NMDAR antagonist D-AP5 (30 µM) . Oleic acid at 20 (mean increase in fEPSP amplitude = ~135 % Vs. Control = 100%; P<0.001) and 30 µM (mean increase in fEPSP amplitude = ~ 280% Vs. Control = 100%); P<0.001) significantly enhanced the STP following weak tetanic stimulation. Lower oleic acid concentrations at 10 µM did not modify the hippocampal STP induced by weak tetanic stimulation. The hippocampal STP induced by weak tetanic stimulation was completely blocked by the NMDA receptor antagonist D-AP5 (30µM) in both oleic acid and control treated hippocampal slices. This lead to the conclusion that the hippocampal STP elicited by weak tetanic stimulation and enhanced by oleic acid was NMDAR dependent. Together these findings suggest that oleic acid may enhance the short term memory and neuronal information processing through the modulation of NMDAR dependent hippocampal short-term synaptic plasticity. In conclusion this study suggests the possible role of oleic acid to prevent the short term memory loss and impaired neuronal function throughout development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=oleic%20acid" title="oleic acid">oleic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=short-term%20potentiation" title=" short-term potentiation"> short-term potentiation</a>, <a href="https://publications.waset.org/abstracts/search?q=memory" title=" memory"> memory</a>, <a href="https://publications.waset.org/abstracts/search?q=field%20excitatory%20post%20synaptic%20potentials" title=" field excitatory post synaptic potentials"> field excitatory post synaptic potentials</a>, <a href="https://publications.waset.org/abstracts/search?q=NMDA%20receptor" title=" NMDA receptor"> NMDA receptor</a> </p> <a href="https://publications.waset.org/abstracts/36993/oleic-acid-enhances-hippocampal-synaptic-efficacy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36993.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">335</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12779</span> 3D Estimation of Synaptic Vesicle Distributions in Serial Section Transmission Electron Microscopy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahdieh%20Khanmohammadi">Mahdieh Khanmohammadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sune%20Darkner"> Sune Darkner</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicoletta%20Nava"> Nicoletta Nava</a>, <a href="https://publications.waset.org/abstracts/search?q=Jens%20Randel%20Nyengaard"> Jens Randel Nyengaard</a>, <a href="https://publications.waset.org/abstracts/search?q=Jon%20Sporring"> Jon Sporring</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We study the effect of stress on nervous system and we use two experimental groups of rats: sham rats and rats subjected to acute foot-shock stress. We investigate the synaptic vesicles density as a function of distance to the active zone in serial section transmission electron microscope images in 2 and 3 dimensions. By estimating the density in 2D and 3D we compare two groups of rats. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stress" title="stress">stress</a>, <a href="https://publications.waset.org/abstracts/search?q=3-dimensional%20synaptic%20vesicle%20density" title=" 3-dimensional synaptic vesicle density"> 3-dimensional synaptic vesicle density</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20registration" title=" image registration"> image registration</a>, <a href="https://publications.waset.org/abstracts/search?q=bioinformatics" title=" bioinformatics"> bioinformatics</a> </p> <a href="https://publications.waset.org/abstracts/8139/3d-estimation-of-synaptic-vesicle-distributions-in-serial-section-transmission-electron-microscopy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8139.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">278</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12778</span> Neural Network Mechanisms Underlying the Combination Sensitivity Property in the HVC of Songbirds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zeina%20Merabi">Zeina Merabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Arij%20Dao"> Arij Dao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The temporal order of information processing in the brain is an important code in many acoustic signals, including speech, music, and animal vocalizations. Despite its significance, surprisingly little is known about its underlying cellular mechanisms and network manifestations. In the songbird telencephalic nucleus HVC, a subset of neurons shows temporal combination sensitivity (TCS). These neurons show a high temporal specificity, responding differently to distinct patterns of spectral elements and their combinations. HVC neuron types include basal-ganglia-projecting HVCX, forebrain-projecting HVCRA, and interneurons (HVC¬INT), each exhibiting distinct cellular, electrophysiological and functional properties. In this work, we develop conductance-based neural network models connecting the different classes of HVC neurons via different wiring scenarios, aiming to explore possible neural mechanisms that orchestrate the combination sensitivity property exhibited by HVCX, as well as replicating in vivo firing patterns observed when TCS neurons are presented with various auditory stimuli. The ionic and synaptic currents for each class of neurons that are presented in our networks and are based on pharmacological studies, rendering our networks biologically plausible. We present for the first time several realistic scenarios in which the different types of HVC neurons can interact to produce this behavior. The different networks highlight neural mechanisms that could potentially help to explain some aspects of combination sensitivity, including 1) interplay between inhibitory interneurons’ activity and the post inhibitory firing of the HVCX neurons enabled by T-type Ca2+ and H currents, 2) temporal summation of synaptic inputs at the TCS site of opposing signals that are time-and frequency- dependent, and 3) reciprocal inhibitory and excitatory loops as a potent mechanism to encode information over many milliseconds. The result is a plausible network model characterizing auditory processing in HVC. Our next step is to test the predictions of the model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=combination%20sensitivity" title="combination sensitivity">combination sensitivity</a>, <a href="https://publications.waset.org/abstracts/search?q=songbirds" title=" songbirds"> songbirds</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=spatiotemporal%20integration" title=" spatiotemporal integration"> spatiotemporal integration</a> </p> <a href="https://publications.waset.org/abstracts/176725/neural-network-mechanisms-underlying-the-combination-sensitivity-property-in-the-hvc-of-songbirds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176725.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">65</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12777</span> Constraint-Based Computational Modelling of Bioenergetic Pathway Switching in Synaptic Mitochondria from Parkinson's Disease Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Diana%20C.%20El%20Assal">Diana C. El Assal</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Monteiro"> Fatima Monteiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Caroline%20May"> Caroline May</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Barbuti"> Peter Barbuti</a>, <a href="https://publications.waset.org/abstracts/search?q=Silvia%20Bolognin"> Silvia Bolognin</a>, <a href="https://publications.waset.org/abstracts/search?q=Averina%20Nicolae"> Averina Nicolae</a>, <a href="https://publications.waset.org/abstracts/search?q=Hulda%20Haraldsdottir"> Hulda Haraldsdottir</a>, <a href="https://publications.waset.org/abstracts/search?q=Lemmer%20R.%20P.%20El%20Assal"> Lemmer R. P. El Assal</a>, <a href="https://publications.waset.org/abstracts/search?q=Swagatika%20Sahoo"> Swagatika Sahoo</a>, <a href="https://publications.waset.org/abstracts/search?q=Longfei%20Mao"> Longfei Mao</a>, <a href="https://publications.waset.org/abstracts/search?q=Jens%20Schwamborn"> Jens Schwamborn</a>, <a href="https://publications.waset.org/abstracts/search?q=Rejko%20Kruger"> Rejko Kruger</a>, <a href="https://publications.waset.org/abstracts/search?q=Ines%20Thiele"> Ines Thiele</a>, <a href="https://publications.waset.org/abstracts/search?q=Kathrin%20Marcus"> Kathrin Marcus</a>, <a href="https://publications.waset.org/abstracts/search?q=Ronan%20M.%20T.%20Fleming"> Ronan M. T. Fleming</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Degeneration of substantia nigra pars compacta dopaminergic neurons is one of the hallmarks of Parkinson's disease. These neurons have a highly complex axonal arborisation and a high energy demand, so any reduction in ATP synthesis could lead to an imbalance between supply and demand, thereby impeding normal neuronal bioenergetic requirements. Synaptic mitochondria exhibit increased vulnerability to dysfunction in Parkinson's disease. After biogenesis in and transport from the cell body, synaptic mitochondria become highly dependent upon oxidative phosphorylation. We applied a systems biochemistry approach to identify the metabolic pathways used by neuronal mitochondria for energy generation. The mitochondrial component of an existing manual reconstruction of human metabolism was extended with manual curation of the biochemical literature and specialised using omics data from Parkinson's disease patients and controls, to generate reconstructions of synaptic and somal mitochondrial metabolism. These reconstructions were converted into stoichiometrically- and fluxconsistent constraint-based computational models. These models predict that Parkinson's disease is accompanied by an increase in the rate of glycolysis and a decrease in the rate of oxidative phosphorylation within synaptic mitochondria. This is consistent with independent experimental reports of a compensatory switching of bioenergetic pathways in the putamen of post-mortem Parkinson's disease patients. Ongoing work, in the context of the SysMedPD project is aimed at computational prediction of mitochondrial drug targets to slow the progression of neurodegeneration in the subset of Parkinson's disease patients with overt mitochondrial dysfunction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioenergetics" title="bioenergetics">bioenergetics</a>, <a href="https://publications.waset.org/abstracts/search?q=mitochondria" title=" mitochondria"> mitochondria</a>, <a href="https://publications.waset.org/abstracts/search?q=Parkinson%27s%20disease" title=" Parkinson's disease"> Parkinson's disease</a>, <a href="https://publications.waset.org/abstracts/search?q=systems%20biochemistry" title=" systems biochemistry"> systems biochemistry</a> </p> <a href="https://publications.waset.org/abstracts/70238/constraint-based-computational-modelling-of-bioenergetic-pathway-switching-in-synaptic-mitochondria-from-parkinsons-disease-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70238.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">294</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12776</span> Neural Networks Underlying the Generation of Neural Sequences in the HVC</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zeina%20Bou%20Diab">Zeina Bou Diab</a>, <a href="https://publications.waset.org/abstracts/search?q=Arij%20Daou"> Arij Daou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The neural mechanisms of sequential behaviors are intensively studied, with songbirds a focus for learned vocal production. We are studying the premotor nucleus HVC at a nexus of multiple pathways contributing to song learning and production. The HVC consists of multiple classes of neuronal populations, each has its own cellular, electrophysiological and functional properties. During singing, a large subset of motor cortex analog-projecting HVCRA neurons emit a single 6-10 ms burst of spikes at the same time during each rendition of song, a large subset of basal ganglia-projecting HVCX neurons fire 1 to 4 bursts that are similarly time locked to vocalizations, while HVCINT neurons fire tonically at average high frequency throughout song with prominent modulations whose timing in relation to song remains unresolved. This opens the opportunity to define models relating explicit HVC circuitry to how these neurons work cooperatively to control learning and singing. We developed conductance-based Hodgkin-Huxley models for the three classes of HVC neurons (based on the ion channels previously identified from in vitro recordings) and connected them in several physiologically realistic networks (based on the known synaptic connectivity and specific glutaminergic and gabaergic pharmacology) via different architecture patterning scenarios with the aim to replicate the in vivo firing patterning behaviors. We are able, through these networks, to reproduce the in vivo behavior of each class of HVC neurons, as shown by the experimental recordings. The different network architectures developed highlight different mechanisms that might be contributing to the propagation of sequential neural activity (continuous or punctate) in the HVC and to the distinctive firing patterns that each class exhibits during singing. Examples of such possible mechanisms include: 1) post-inhibitory rebound in HVCX and their population patterns during singing, 2) different subclasses of HVCINT interacting via inhibitory-inhibitory loops, 3) mono-synaptic HVCX to HVCRA excitatory connectivity, and 4) structured many-to-one inhibitory synapses from interneurons to projection neurons, and others. Replication is only a preliminary step that must be followed by model prediction and testing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computational%20modeling" title="computational modeling">computational modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=temporal%20neural%20sequences" title=" temporal neural sequences"> temporal neural sequences</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20currents" title=" ionic currents"> ionic currents</a>, <a href="https://publications.waset.org/abstracts/search?q=songbird" title=" songbird"> songbird</a> </p> <a href="https://publications.waset.org/abstracts/176727/neural-networks-underlying-the-generation-of-neural-sequences-in-the-hvc" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176727.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">70</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12775</span> The 10,000 Fold Effect of Retrograde Neurotransmission: A New Concept for Cerebral Palsy Revival by the Use of Nitric Oxide Donars </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20K.%20Tewari">V. K. Tewari</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Hussain"> M. Hussain</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20K.%20D.%20Gupta"> H. K. D. Gupta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Nitric Oxide Donars (NODs) (intrathecal sodium nitroprusside (ITSNP) and oral tadalafil 20mg post ITSNP) has been studied in this context in cerebral palsy patients for fast recovery. This work proposes two mechanisms for acute cases and one mechanism for chronic cases, which are interrelated, for physiological recovery. a) Retrograde Neurotransmission (acute cases): 1) Normal excitatory impulse: at the synaptic level, glutamate activates NMDA receptors, with nitric oxide synthetase (NOS) on the postsynaptic membrane, for further propagation by the calcium-calmodulin complex. Nitric oxide (NO, produced by NOS) travels backward across the chemical synapse and binds the axon-terminal NO receptor/sGC of a presynaptic neuron, regulating anterograde neurotransmission (ANT) via retrograde neurotransmission (RNT). Heme is the ligand-binding site of the NO receptor/sGC. Heme exhibits > 10,000-fold higher affinity for NO than for oxygen (the 10,000-fold effect) and is completed in 20 msec. 2) Pathological conditions: normal synaptic activity, including both ANT and RNT, is absent. A NO donor (SNP) releases NO from NOS in the postsynaptic region. NO travels backward across a chemical synapse to bind to the heme of a NO receptor in the axon terminal of a presynaptic neuron, generating an impulse, as under normal conditions. b) Vasopasm: (acute cases) Perforators show vasospastic activity. NO vasodilates the perforators via the NO-cAMP pathway. c) Long-Term Potentiation (LTP): (chronic cases) The NO–cGMP-pathway plays a role in LTP at many synapses throughout the CNS and at the neuromuscular junction. LTP has been reviewed both generally and with respect to brain regions specific for memory/learning. Aims/Study Design: The principles of “generation of impulses from the presynaptic region to the postsynaptic region by very potent RNT (10,000-fold effect)” and “vasodilation of arteriolar perforators” are the basis of the authors’ hypothesis to treat cerebral palsy cases. Case-control prospective study. Materials and Methods: The experimental population included 82 cerebral palsy patients (10 patients were given control treatments without NOD or with 5% dextrose superfusion, and 72 patients comprised the NOD group). The mean time for superfusion was 5 months post-cerebral palsy. Pre- and post-NOD status was monitored by Gross Motor Function Classification System for Cerebral Palsy (GMFCS), MRI, and TCD studies. Results: After 7 days in the NOD group, the mean change in the GMFCS score was an increase of 1.2 points mean; after 3 months, there was an increase of 3.4 points mean, compared to the control-group increase of 0.1 points at 3 months. MRI and TCD documented the improvements. Conclusions: NOD (ITSNP boosts up the recovery and oral tadalafil maintains the recovery to a well-desired level) acts swiftly in the treatment of CP, acting within 7 days on 5 months post-cerebral palsy either of the three mechanisms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cerebral%20palsy" title="cerebral palsy">cerebral palsy</a>, <a href="https://publications.waset.org/abstracts/search?q=intrathecal%20sodium%20nitroprusside" title=" intrathecal sodium nitroprusside"> intrathecal sodium nitroprusside</a>, <a href="https://publications.waset.org/abstracts/search?q=oral%20tadalafil" title=" oral tadalafil"> oral tadalafil</a>, <a href="https://publications.waset.org/abstracts/search?q=perforators" title=" perforators"> perforators</a>, <a href="https://publications.waset.org/abstracts/search?q=vasodilations" title=" vasodilations"> vasodilations</a>, <a href="https://publications.waset.org/abstracts/search?q=retrograde%20transmission" title=" retrograde transmission"> retrograde transmission</a>, <a href="https://publications.waset.org/abstracts/search?q=the%2010" title=" the 10"> the 10</a>, <a href="https://publications.waset.org/abstracts/search?q=000-fold%20effect" title="000-fold effect">000-fold effect</a>, <a href="https://publications.waset.org/abstracts/search?q=long-term%20potantiation" title=" long-term potantiation"> long-term potantiation</a> </p> <a href="https://publications.waset.org/abstracts/15995/the-10000-fold-effect-of-retrograde-neurotransmission-a-new-concept-for-cerebral-palsy-revival-by-the-use-of-nitric-oxide-donars" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15995.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">363</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12774</span> The 10,000 Fold Effect of Retrograde Neurotransmission, a New Concept for Stroke Revival: Use of Intracarotid Sodium Nitroprusside </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vinod%20Kumar">Vinod Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Tissue Plasminogen Activator (tPA) showed a level 1 benefit in acute stroke (within 3-6 hrs). Intracarotid sodium nitroprusside (ICSNP) has been studied in this context with a wide treatment window, fast recovery and affordability. This work proposes two mechanisms for acute cases and one mechanism for chronic cases, which are interrelated, for physiological recovery. a)Retrograde Neurotransmission (acute cases): 1)Normal excitatory impulse: at the synaptic level, glutamate activates NMDA receptors, with nitric oxide synthetase (NOS) on the postsynaptic membrane, for further propagation by the calcium-calmodulin complex. Nitric oxide (NO, produced by NOS) travels backward across the chemical synapse and binds the axon-terminal NO receptor/sGC of a presynaptic neuron, regulating anterograde neurotransmission (ANT) via retrograde neurotransmission (RNT). Heme is the ligand-binding site of the NO receptor/sGC. Heme exhibits > 10,000-fold higher affinity for NO than for oxygen (the 10,000-fold effect) and is completed in 20 msec. 2)Pathological conditions: normal synaptic activity, including both ANT and RNT, is absent. A NO donor (SNP) releases NO from NOS in the postsynaptic region. NO travels backward across a chemical synapse to bind to the heme of a NO receptor in the axon terminal of a presynaptic neuron, generating an impulse, as under normal conditions. b)Vasospasm: (acute cases) Perforators show vasospastic activity. NO vasodilates the perforators via the NO-cAMP pathway. c)Long-Term Potentıatıon (LTP): (chronic cases) The NO–cGMP-pathway plays a role in LTP at many synapses throughout the CNS and at the neuromuscular junction. LTP has been reviewed both generally and with respect to brain regions specific for memory/learning. Aims/Study Des’gn: The principles of “generation of impulses from the presynaptic region to the postsynaptic region by very potent RNT (10,000-fold effect)” and “vasodilation of arteriolar perforators” are the basis of the authors’ hypothesis to treat stroke cases. Case-control prospective study. Mater’als And Methods: The experimental population included 82 stroke patients (10 patients were given control treatments without superfusion or with 5% dextrose superfusion, and 72 patients comprised the ICSNP group). The mean time for superfusion was 9.5 days post-stroke. Pre- and post-ICSNP status was monitored by NIHSS, MRI and TCD. Results: After 90 seconds in the ICSNP group, the mean change in the NIHSS score was a decrease of 1.44 points, or 6.55%; after 2 h, there was a decrease of 1.16 points; after 24 h, there was an increase of 0.66 points, 2.25%, compared to the control-group increase of 0.7 points, or 3.53%; at 7 days, there was an 8.61-point decrease, 44.58%, compared to the control-group increase of 2.55 points, or 22.37%; at 2 months in ICSNP, there was a 6.94-points decrease, 62.80%, compared to the control-group decrease of 2.77 points, or 8.78%. TCD was documented and improvements were noted. Conclusions: ICSNP is a swift-acting drug in the treatment of stroke, acting within 90 seconds on day 9.5 post-stroke with a small decrease after 24 hours. The drug recovers from this decrease quickly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brain%20infarcts" title="brain infarcts">brain infarcts</a>, <a href="https://publications.waset.org/abstracts/search?q=intracarotid%20sodium%20nitroprusside" title=" intracarotid sodium nitroprusside"> intracarotid sodium nitroprusside</a>, <a href="https://publications.waset.org/abstracts/search?q=perforators" title=" perforators"> perforators</a>, <a href="https://publications.waset.org/abstracts/search?q=vasodilat%C4%B1ons" title=" vasodilatıons"> vasodilatıons</a>, <a href="https://publications.waset.org/abstracts/search?q=retrograde%20transmission" title=" retrograde transmission"> retrograde transmission</a>, <a href="https://publications.waset.org/abstracts/search?q=the%2010" title=" the 10"> the 10</a>, <a href="https://publications.waset.org/abstracts/search?q=000-fold%20effect" title="000-fold effect">000-fold effect</a> </p> <a href="https://publications.waset.org/abstracts/15756/the-10000-fold-effect-of-retrograde-neurotransmission-a-new-concept-for-stroke-revival-use-of-intracarotid-sodium-nitroprusside" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15756.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">307</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12773</span> Evaluation of Hydrocarbon Prospects of 'ADE' Field, Niger Delta </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oluseun%20A.%20Sanuade">Oluseun A. Sanuade</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanlinn%20I.%20Kaka"> Sanlinn I. Kaka</a>, <a href="https://publications.waset.org/abstracts/search?q=Adesoji%20O.%20Akanji"> Adesoji O. Akanji</a>, <a href="https://publications.waset.org/abstracts/search?q=Olukole%20A.%20Akinbiyi"> Olukole A. Akinbiyi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Prospect evaluation of ‘the ‘ADE’ field was done using 3D seismic data and well log data. The field is located in the offshore Niger Delta where water depth ranges from 450 to 800 m. The objectives of this study are to explore deeper prospects and to ascertain the kind of traps that are favorable for the accumulation of hydrocarbon in the field. Six horizons with major and minor faults were identified and mapped in the field. Time structure maps of these horizons were generated and using the available check-shot data the maps were converted to top structure maps which were used to calculate the hydrocarbon volume. The results show that regional structural highs that are trending in northeast-southwest (NE-SW) characterized a large portion of the field. These highs were observed across all horizons revealing a regional post-depositional deformation. Three prospects were identified and evaluated to understand the different opportunities in the field. These include stratigraphic pinch out and bi-directional downlap. The results of this study show that the field has potentials for new opportunities that could be explored for further studies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrocarbon" title="hydrocarbon">hydrocarbon</a>, <a href="https://publications.waset.org/abstracts/search?q=play" title=" play"> play</a>, <a href="https://publications.waset.org/abstracts/search?q=prospect" title=" prospect"> prospect</a>, <a href="https://publications.waset.org/abstracts/search?q=stratigraphy" title=" stratigraphy"> stratigraphy</a> </p> <a href="https://publications.waset.org/abstracts/86819/evaluation-of-hydrocarbon-prospects-of-ade-field-niger-delta" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86819.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">269</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12772</span> Memristor-A Promising Candidate for Neural Circuits in Neuromorphic Computing Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Juhi%20Faridi">Juhi Faridi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd.%20Ajmal%20Kafeel"> Mohd. Ajmal Kafeel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The advancements in the field of Artificial Intelligence (AI) and technology has led to an evolution of an intelligent era. Neural networks, having the computational power and learning ability similar to the brain is one of the key AI technologies. Neuromorphic computing system (NCS) consists of the synaptic device, neuronal circuit, and neuromorphic architecture. Memristor are a promising candidate for neuromorphic computing systems, but when it comes to neuromorphic computing, the conductance behavior of the synaptic memristor or neuronal memristor needs to be studied thoroughly in order to fathom the neuroscience or computer science. Furthermore, there is a need of more simulation work for utilizing the existing device properties and providing guidance to the development of future devices for different performance requirements. Hence, development of NCS needs more simulation work to make use of existing device properties. This work aims to provide an insight to build neuronal circuits using memristors to achieve a Memristor based NCS.  Here we throw a light on the research conducted in the field of memristors for building analog and digital circuits in order to motivate the research in the field of NCS by building memristor based neural circuits for advanced AI applications. This literature is a step in the direction where we describe the various Key findings about memristors and its analog and digital circuits implemented over the years which can be further utilized in implementing the neuronal circuits in the NCS. This work aims to help the electronic circuit designers to understand how the research progressed in memristors and how these findings can be used in implementing the neuronal circuits meant for the recent progress in the NCS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analog%20circuits" title="analog circuits">analog circuits</a>, <a href="https://publications.waset.org/abstracts/search?q=digital%20circuits" title=" digital circuits"> digital circuits</a>, <a href="https://publications.waset.org/abstracts/search?q=memristors" title=" memristors"> memristors</a>, <a href="https://publications.waset.org/abstracts/search?q=neuromorphic%20computing%20systems" title=" neuromorphic computing systems"> neuromorphic computing systems</a> </p> <a href="https://publications.waset.org/abstracts/100057/memristor-a-promising-candidate-for-neural-circuits-in-neuromorphic-computing-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100057.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">174</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12771</span> Latency-Based Motion Detection in Spiking Neural Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Saleh%20Vahdatpour">Mohammad Saleh Vahdatpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Yanqing%20Zhang"> Yanqing Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Understanding the neural mechanisms underlying motion detection in the human visual system has long been a fascinating challenge in neuroscience and artificial intelligence. This paper presents a spiking neural network model inspired by the processing of motion information in the primate visual system, particularly focusing on the Middle Temporal (MT) area. In our study, we propose a multi-layer spiking neural network model to perform motion detection tasks, leveraging the idea that synaptic delays in neuronal communication are pivotal in motion perception. Synaptic delay, determined by factors like axon length and myelin insulation, affects the temporal order of input spikes, thereby encoding motion direction and speed. Overall, our spiking neural network model demonstrates the feasibility of capturing motion detection principles observed in the primate visual system. The combination of synaptic delays, learning mechanisms, and shared weights and delays in SMD provides a promising framework for motion perception in artificial systems, with potential applications in computer vision and robotics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=neural%20network" title="neural network">neural network</a>, <a href="https://publications.waset.org/abstracts/search?q=motion%20detection" title=" motion detection"> motion detection</a>, <a href="https://publications.waset.org/abstracts/search?q=signature%20detection" title=" signature detection"> signature detection</a>, <a href="https://publications.waset.org/abstracts/search?q=convolutional%20neural%20network" title=" convolutional neural network"> convolutional neural network</a> </p> <a href="https://publications.waset.org/abstracts/174855/latency-based-motion-detection-in-spiking-neural-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174855.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">88</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12770</span> Integrable Heisenberg Ferromagnet Equations with Self-Consistent Potentials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gulgassyl%20Nugmanova">Gulgassyl Nugmanova</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhanat%20Zhunussova"> Zhanat Zhunussova</a>, <a href="https://publications.waset.org/abstracts/search?q=Kuralay%20Yesmakhanova"> Kuralay Yesmakhanova</a>, <a href="https://publications.waset.org/abstracts/search?q=Galya%20Mamyrbekova"> Galya Mamyrbekova</a>, <a href="https://publications.waset.org/abstracts/search?q=Ratbay%20Myrzakulov"> Ratbay Myrzakulov </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we consider some integrable Heisenberg Ferromagnet Equations with self-consistent potentials. We study their Lax representations. In particular we derive their equivalent counterparts in the form of nonlinear Schr\"odinger type equations. We present the integrable reductions of the Heisenberg Ferromagnet Equations with self-consistent potentials. These integrable Heisenberg Ferromagnet Equations with self-consistent potentials describe nonlinear waves in ferromagnets with some additional physical fields. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Heisenberg%20Ferromagnet%20equations" title="Heisenberg Ferromagnet equations">Heisenberg Ferromagnet equations</a>, <a href="https://publications.waset.org/abstracts/search?q=soliton%20equations" title=" soliton equations"> soliton equations</a>, <a href="https://publications.waset.org/abstracts/search?q=equivalence" title=" equivalence"> equivalence</a>, <a href="https://publications.waset.org/abstracts/search?q=Lax%20representation" title=" Lax representation"> Lax representation</a> </p> <a href="https://publications.waset.org/abstracts/27440/integrable-heisenberg-ferromagnet-equations-with-self-consistent-potentials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27440.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">457</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12769</span> Evaluation and Possibilities of Valorization of Ecotourism Potentials in the Mbam and Djerem National Park</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rinyu%20Shei%20Mercy">Rinyu Shei Mercy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Protected areas are the potential areas for the development of ecotourism because of their biodiversity, landscapes, waterfalls, lakes, caves, salt lick and cultural heritage of local or indigenous people. These potentials have not yet been valorized, so this study will enable to investigate the evaluation and possibilities of valorization of ecotourism potentials in the Mbam and Djerem National Park. Hence, this was done by employing a combination of field observations, examination, data collection and evaluation, using a SWOT analysis. The SWOT provides an analysis to determine the strengths, weaknesses, opportunities and threats, and strategic suggestions for ecological planning. The study helps to determine an ecotouristic inventory and mapping of ecotourism potentials of the park, evaluate the degree of valorization of these potentials and the possibilities of valorization. Finally, the study has proven that the park has much natural potentials such as rivers, salt licks, waterfall and rapids, lakes, caves and rocks, etc. Also, from the study, it was realized that as concerns the degree of valorization of these ecotourism potentials, 50% of the population visit the salt lick of Pkayere because it’s a biodiversity hotspot and rich in mineral salt attracting a lot of animals and the least is the lake Miyere with 1% due to the fact that it is sacred. Moreover, from the results, there are possibilities that these potentials can be valorized and put into use because of their attractive nature such as creating good roads and bridges, good infrastructural facilities, good communication network etc. So, the study recommends that, in this process, MINTOUR, WCS, tour operators must interact sufficiently in order to develop the potential interest to ecotourism, ecocultural tourism and scientific tourism. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ecotourism" title="ecotourism">ecotourism</a>, <a href="https://publications.waset.org/abstracts/search?q=national%20park%20Mbam%20and%20Djerem" title=" national park Mbam and Djerem"> national park Mbam and Djerem</a>, <a href="https://publications.waset.org/abstracts/search?q=valorization%20of%20biodiversity" title=" valorization of biodiversity"> valorization of biodiversity</a>, <a href="https://publications.waset.org/abstracts/search?q=protected%20areas%20of%20Cameroon" title=" protected areas of Cameroon"> protected areas of Cameroon</a> </p> <a href="https://publications.waset.org/abstracts/117741/evaluation-and-possibilities-of-valorization-of-ecotourism-potentials-in-the-mbam-and-djerem-national-park" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/117741.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">137</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12768</span> Learning from Dendrites: Improving the Point Neuron Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexander%20Vandesompele">Alexander Vandesompele</a>, <a href="https://publications.waset.org/abstracts/search?q=Joni%20Dambre"> Joni Dambre</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The diversity in dendritic arborization, as first illustrated by Santiago Ramon y Cajal, has always suggested a role for dendrites in the functionality of neurons. In the past decades, thanks to new recording techniques and optical stimulation methods, it has become clear that dendrites are not merely passive electrical components. They are observed to integrate inputs in a non-linear fashion and actively participate in computations. Regardless, in simulations of neural networks dendritic structure and functionality are often overlooked. Especially in a machine learning context, when designing artificial neural networks, point neuron models such as the leaky-integrate-and-fire (LIF) model are dominant. These models mimic the integration of inputs at the neuron soma, and ignore the existence of dendrites. In this work, the LIF point neuron model is extended with a simple form of dendritic computation. This gives the LIF neuron increased capacity to discriminate spatiotemporal input sequences, a dendritic functionality as observed in another study. Simulations of the spiking neurons are performed using the Bindsnet framework. In the common LIF model, incoming synapses are independent. Here, we introduce a dependency between incoming synapses such that the post-synaptic impact of a spike is not only determined by the weight of the synapse, but also by the activity of other synapses. This is a form of short term plasticity where synapses are potentiated or depressed by the preceding activity of neighbouring synapses. This is a straightforward way to prevent inputs from simply summing linearly at the soma. To implement this, each pair of synapses on a neuron is assigned a variable,representing the synaptic relation. This variable determines the magnitude ofthe short term plasticity. These variables can be chosen randomly or, more interestingly, can be learned using a form of Hebbian learning. We use Spike-Time-Dependent-Plasticity (STDP), commonly used to learn synaptic strength magnitudes. If all neurons in a layer receive the same input, they tend to learn the same through STDP. Adding inhibitory connections between the neurons creates a winner-take-all (WTA) network. This causes the different neurons to learn different input sequences. To illustrate the impact of the proposed dendritic mechanism, even without learning, we attach five input neurons to two output neurons. One output neuron isa regular LIF neuron, the other output neuron is a LIF neuron with dendritic relationships. Then, the five input neurons are allowed to fire in a particular order. The membrane potentials are reset and subsequently the five input neurons are fired in the reversed order. As the regular LIF neuron linearly integrates its inputs at the soma, the membrane potential response to both sequences is similar in magnitude. In the other output neuron, due to the dendritic mechanism, the membrane potential response is different for both sequences. Hence, the dendritic mechanism improves the neuron’s capacity for discriminating spa-tiotemporal sequences. Dendritic computations improve LIF neurons even if the relationships between synapses are established randomly. Ideally however, a learning rule is used to improve the dendritic relationships based on input data. It is possible to learn synaptic strength with STDP, to make a neuron more sensitive to its input. Similarly, it is possible to learn dendritic relationships with STDP, to make the neuron more sensitive to spatiotemporal input sequences. Feeding structured data to a WTA network with dendritic computation leads to a significantly higher number of discriminated input patterns. Without the dendritic computation, output neurons are less specific and may, for instance, be activated by a sequence in reverse order. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dendritic%20computation" title="dendritic computation">dendritic computation</a>, <a href="https://publications.waset.org/abstracts/search?q=spiking%20neural%20networks" title=" spiking neural networks"> spiking neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=point%20neuron%20model" title=" point neuron model"> point neuron model</a> </p> <a href="https://publications.waset.org/abstracts/127988/learning-from-dendrites-improving-the-point-neuron-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/127988.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">133</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12767</span> Corticomotor Excitability after Two Different Repetitive Transcranial Magnetic Stimulation Protocols in Ischemic Stroke Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asrarul%20Fikri%20Abu%20Hassan">Asrarul Fikri Abu Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Hafiz%20bin%20Hanafi"> Muhammad Hafiz bin Hanafi</a>, <a href="https://publications.waset.org/abstracts/search?q=Jafri%20Malin%20Abdullah"> Jafri Malin Abdullah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study is to compare the motor evoked potential (MEP) changes using different settings of repetitive transcranial magnetic stimulation (rTMS) in the post-haemorrhagic stroke patient which treated conservatively. The goal of the study is to determine changes in corticomotor excitability and functional outcome after repetitive transcranial magnetic stimulation (rTMS) therapy regime. 20 post-stroke patients with upper limb hemiparesis were studied due to haemorrhagic stroke. One of the three settings; (I) Inhibitory setting, or (II) facilitatory setting, or (III) control group, no excitatory or inhibitory setting have been applied randomly during the first meeting. The motor evoked potential (MEP) were recorded before and after application of the rTMS setting. Functional outcomes were evaluated using the Barthel index score. We found pre-treatment MEP values of the lesional side were lower compared to post-treatment values in both settings. In contrast, we found that the pre-treatment MEP values of the non-lesional side were higher compared to post-treatment values in both settings. Interestingly, patients with treatment, either facilitatory setting and inhibitory setting have faster motor recovery compared to the control group. Our data showed both settings might improve the MEP of the upper extremity and functional outcomes in the haemorrhagic stroke patient. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Barthel%20index" title="Barthel index">Barthel index</a>, <a href="https://publications.waset.org/abstracts/search?q=corticomotor%20excitability" title=" corticomotor excitability"> corticomotor excitability</a>, <a href="https://publications.waset.org/abstracts/search?q=motor%20evoked%20potential" title=" motor evoked potential"> motor evoked potential</a>, <a href="https://publications.waset.org/abstracts/search?q=repetitive%20transcranial%20magnetic%20stimulation" title=" repetitive transcranial magnetic stimulation"> repetitive transcranial magnetic stimulation</a>, <a href="https://publications.waset.org/abstracts/search?q=stroke" title=" stroke"> stroke</a> </p> <a href="https://publications.waset.org/abstracts/98326/corticomotor-excitability-after-two-different-repetitive-transcranial-magnetic-stimulation-protocols-in-ischemic-stroke-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98326.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">159</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12766</span> Neuro-Epigenetic Changes on Diabetes Induced-Synaptic Fidelity in Brain</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Valencia%20Fernandes">Valencia Fernandes</a>, <a href="https://publications.waset.org/abstracts/search?q=Dharmendra%20Kumar%20Khatri"> Dharmendra Kumar Khatri</a>, <a href="https://publications.waset.org/abstracts/search?q=Shashi%20Bala%20Singh"> Shashi Bala Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background and Aim: Epigenetics are the inaudible signatures of several pathological processes in the brain. This study understands the influence of DNA methylation, a major epigenetic modification, in the prefrontal cortex and hippocampus of the diabetic brain and its notable effect on the cellular chaperones and synaptic proteins. Method: Chronic high fat diet and STZ-induced diabetic mice were studied for cognitive dysfunction, and global DNA methylation, as well as DNA methyltransferase (DNMT) activity, were assessed. Further, the cellular chaperones and synaptic proteins were examined using DNMT inhibitor, 5-aza-2′-deoxycytidine (5-aza-dC)-via intracerebroventricular injection. Moreover, % methylation of these synaptic proteins were also studied so as to correlate its epigenetic involvement. Computationally, its interaction with the DNMT enzyme were also studied using bioinformatic tools. Histological studies for morphological alterations and neuronal degeneration were also studied. Neurogenesis, a characteristic marker for new learning and memory formation, was also assessed via the BrdU staining. Finally, the most important behavioral studies, including the Morris water maze, Y maze, passive avoidance, and Novel object recognition test, were performed to study its cognitive functions. Results: Altered global DNA methylation and increased levels of DNMTs within the nucleus were confirmed in the cortex and hippocampus of the diseased mice, suggesting hypermethylation at a genetic level. Treatment with AzadC, a global DNA demethylating agent, ameliorated the protein and gene expression of the cellular chaperones and synaptic fidelity. Furthermore, the methylation analysis profile showed hypermethylation of the hsf1 protein, a master regulator for chaperones and thus, confirmed the epigenetic involvement in the diseased brain. Morphological improvements and decreased neurodegeneration, along with enhanced neurogenesis in the treatment group, suggest that epigenetic modulations do participate in learning and memory. This is supported by the improved behavioral test battery seen in the treatment group. Conclusion: DNA methylation could possibly accord in dysregulating the memory-associated proteins at chronic stages in type 2 diabetes. This could suggest a substantial contribution to the underlying pathophysiology of several metabolic syndromes like insulin resistance, obesity and also participate in transitioning this damage centrally, such as cognitive dysfunction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=epigenetics" title="epigenetics">epigenetics</a>, <a href="https://publications.waset.org/abstracts/search?q=cognition" title=" cognition"> cognition</a>, <a href="https://publications.waset.org/abstracts/search?q=chaperones" title=" chaperones"> chaperones</a>, <a href="https://publications.waset.org/abstracts/search?q=DNA%20methylation" title=" DNA methylation"> DNA methylation</a> </p> <a href="https://publications.waset.org/abstracts/140515/neuro-epigenetic-changes-on-diabetes-induced-synaptic-fidelity-in-brain" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140515.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">204</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12765</span> Chinese Acupuncture: A Potential Treatment for Autism Rat Model via Improving Synaptic Function</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sijie%20Chen">Sijie Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaofang%20Chen"> Xiaofang Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Juan%20Wang"> Juan Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yingying%20Zhang"> Yingying Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu%20Hong"> Yu Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Wanyu%20Zhuang"> Wanyu Zhuang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xinxin%20Huang"> Xinxin Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ping%20Ou"> Ping Ou</a>, <a href="https://publications.waset.org/abstracts/search?q=Longsheng%20Huang"> Longsheng Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: Autistic symptom improvement can be observed in children treated with acupuncture, but the mechanism is still being explored. In the present study, we used scalp acupuncture to treat autism rat model, and then their improvement in the abnormal behaviors and specific mechanisms behind were revealed by detecting animal behaviors, analyzing the RNA sequencing of the prefrontal cortex(PFC), and observing the ultrastructure of PFC neurons under the transmission electron microscope. Methods: On gestational day 12.5, Wistar rats were given valproic acid (VPA) by intraperitoneal injection, and their offspring were considered to be reliable rat models of autism. They were randomized to VPA or VPA-acupuncture group (n=8). Offspring of Wistar pregnant rats that were simultaneously injected with saline were randomly selected as the wild-type group (WT). VPA_acupuncture group rats received acupuncture intervention at 23 days of age for 4 weeks, and the other two groups followed without intervention. After the intervention, all experimental rats underwent behavioral tests. Immediately afterward, they were euthanized by cervical dislocation, and their prefrontal cortex was isolated for RNA sequencing and transmission electron microscopy. Results: The main results are as follows: 1. Animal behavioural tests: VPA group rats showed more anxiety-like behaviour and repetitive, stereotyped behaviour than WT group rats. While VPA group rats showed less spatial exploration ability, activity level, social interaction, and social novelty preference than WT group rats. It was gratifying to observe that acupuncture indeed improved these abnormal behaviors of autism rat model. 2. RNA-sequencing: The three groups of rats differed in the expression and enrichment pathways of multiple genes related to synaptic function, neural signal transduction, and circadian rhythm regulation. Our experiments indicated that acupuncture can alleviate the major symptoms of ASD by improving these neurological abnormalities. 3. Under the transmission electron microscopy, several lysosomes and mitochondrial structural abnormalities were observed in the prefrontal neurons of VPA group rats, which were manifested as atrophy of the mitochondrial membran, blurring or disappearance of the mitochondrial cristae, and even vacuolization. Moreover, the number of synapses and synaptic vesicles was relatively small. Conversely, the mitochondrial structure of rats in the WT group and VPA_acupuncture was normal, and the number of synapses and synaptic vesicles was relatively large. Conclusion: Acupuncture effectively improved the abnormal behaviors of autism rat model and the ultrastructure of the PFC neurons, which might worked by improving their abnormal synaptic function, synaptic plasticity and promoting neuronal signal transduction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=autism%20spectrum%20disorder" title="autism spectrum disorder">autism spectrum disorder</a>, <a href="https://publications.waset.org/abstracts/search?q=acupuncture" title=" acupuncture"> acupuncture</a>, <a href="https://publications.waset.org/abstracts/search?q=animal%20behavior" title=" animal behavior"> animal behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=RNA%20sequencing" title=" RNA sequencing"> RNA sequencing</a>, <a href="https://publications.waset.org/abstracts/search?q=transmission%20electron%20microscope" title=" transmission electron microscope"> transmission electron microscope</a> </p> <a href="https://publications.waset.org/abstracts/184480/chinese-acupuncture-a-potential-treatment-for-autism-rat-model-via-improving-synaptic-function" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/184480.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">45</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12764</span> Generalized Hyperbolic Functions: Exponential-Type Quantum Interactions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jose%20Juan%20Pe%C3%B1a">Jose Juan Peña</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Morales"> J. Morales</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Garc%C3%ADa-Ravelo"> J. García-Ravelo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the search of potential models applied in the theoretical treatment of diatomic molecules, some of them have been constructed by using standard hyperbolic functions as well as from the so-called q-deformed hyperbolic functions (sc q-dhf) for displacing and modifying the shape of the potential under study. In order to transcend the scope of hyperbolic functions, in this work, a kind of generalized q-deformed hyperbolic functions (g q-dhf) is presented. By a suitable transformation, through the q deformation parameter, it is shown that these g q-dhf can be expressed in terms of their corresponding standard ones besides they can be reduced to the sc q-dhf. As a useful application of the proposed approach, and considering a class of exactly solvable multi-parameter exponential-type potentials, some new q-deformed quantum interactions models that can be used as interesting alternative in quantum physics and quantum states are presented. Furthermore, due that quantum potential models are conditioned on the q-dependence of the parameters that characterize to the exponential-type potentials, it is shown that many specific cases of q-deformed potentials are obtained as particular cases from the proposal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diatomic%20molecules" title="diatomic molecules">diatomic molecules</a>, <a href="https://publications.waset.org/abstracts/search?q=exponential-type%20potentials" title=" exponential-type potentials"> exponential-type potentials</a>, <a href="https://publications.waset.org/abstracts/search?q=hyperbolic%20functions" title=" hyperbolic functions"> hyperbolic functions</a>, <a href="https://publications.waset.org/abstracts/search?q=q-deformed%20potentials" title=" q-deformed potentials"> q-deformed potentials</a> </p> <a href="https://publications.waset.org/abstracts/82814/generalized-hyperbolic-functions-exponential-type-quantum-interactions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82814.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">185</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12763</span> Focusing on the Utilization of Information and Communication Technology for Improving Childrens’ Potentials in Science: Challenges for Sustainable Development in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osagiede%20Mercy%20Afe">Osagiede Mercy Afe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> After the internet explosion in the 90’s, Technology was immediately integrated into the school system. Technology which symbolizes advancement in human knowledge was seen as a setback by many educators many efforts have been made to help stem this erroneous believes and help educators realize the benefits of technology and ways of implementing it in the classrooms especially in the sciences. This advancement created a constantly expanding gap between the pupil’s perception on the use of technology within the learning atmosphere and the teacher’s perception and limitations hence the focus of this paper is on the need to refocus on the potentials of Science and Technology in enhancing children learning at school especially in science for sustainable development in Nigeria. The paper recommended measures for facilitating the sustenance of science and technology in Nigerian schools so as to enhance the potentials of our children in Science and Technology for a better tomorrow. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=children" title="children">children</a>, <a href="https://publications.waset.org/abstracts/search?q=information%20communication%20technology%20%28ICT%29" title=" information communication technology (ICT)"> information communication technology (ICT)</a>, <a href="https://publications.waset.org/abstracts/search?q=potentials" title=" potentials"> potentials</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title="sustainable development">sustainable development</a>, <a href="https://publications.waset.org/abstracts/search?q=science%20education" title=" science education"> science education</a> </p> <a href="https://publications.waset.org/abstracts/22363/focusing-on-the-utilization-of-information-and-communication-technology-for-improving-childrens-potentials-in-science-challenges-for-sustainable-development-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22363.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">488</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12762</span> Reconstruction of Holographic Dark Energy in Chameleon Brans-Dicke Cosmology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Surajit%20Chattopadhyay">Surajit Chattopadhyay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Accelerated expansion of the current universe is well-established in the literature. Dark energy and modified gravity are two approaches to account for this accelerated expansion. In the present work, we consider scalar field models of dark energy, namely, tachyon and DBI essence in the framework of chameleon Brans-Dicke cosmology. The equation of state parameter is reconstructed and the subsequent cosmological implications are studied. We examined the stability for the obtained solutions of the crossing of the phantom divide under a quantum correction of massless conformally invariant fields and we have seen that quantum correction could be small when the phantom crossing occurs and the obtained solutions of the phantom crossing could be stable under the quantum correction. In the subsequent phase, we have established a correspondence between the NHDE model and the quintessence, the DBI-essence and the tachyon scalar field models in the framework of chameleon Brans–Dicke cosmology. We reconstruct the potentials and the dynamics for these three scalar field models we have considered. The reconstructed potentials are found to increase with the evolution of the universe and in a very late stage they are observed to decay. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dark%20energy" title="dark energy">dark energy</a>, <a href="https://publications.waset.org/abstracts/search?q=holographic%20principle" title=" holographic principle"> holographic principle</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20gravity" title=" modified gravity"> modified gravity</a>, <a href="https://publications.waset.org/abstracts/search?q=reconstruction" title=" reconstruction"> reconstruction</a> </p> <a href="https://publications.waset.org/abstracts/32547/reconstruction-of-holographic-dark-energy-in-chameleon-brans-dicke-cosmology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32547.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">412</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12761</span> Molecular Characterization and Determination of Bioremediation Potentials of Some Bacteria Isolated from Spent Oil Contaminated Soil Mechanic Workshops in Kaduna Metropolis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=David%20D.%20Adams">David D. Adams</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20B.%20Bello"> Ibrahim B. Bello</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Spent oil contaminated Soil from ten selected mechanic workshops were investigated for their bacteria and bioremediation potentials. The bacterial isolates were morphologically and molecularly identified as Enterobacter hormaechei, Escherichia coli, Klebsiella pneumoniae, Shigella flexneri , Wesiella cibaria, Lactobacillus planetarium. The singles and a consortium of these bacteria incubated in the minimal salt medium incorporated with 1% engine oil exhibited various biodegradation rates, with the mixed consortium exhibiting the highest for this oil. The gene for the hydrocarbon enzyme Catechol 2, 3 dioxygenase (C2,30) was detected and amplified in Enterobacter hormaechei, Escherichia coli and Shigella flexneri using PCR and Agarose gel electrophoresis. The detection of the (C2,30) enzyme gene in, and the spent oil biodegradation activity exhibited by these bacteria suggest their possible possession of bioremediating potentials for the spent engine oil. It is therefore suggested that a pilot study on the field application of these bacteria for bioremediation and restoration of spent oil polluted environment should be done in mechanic workshops. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spent%20engine%20oil" title="spent engine oil">spent engine oil</a>, <a href="https://publications.waset.org/abstracts/search?q=pollution" title=" pollution"> pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteria" title=" bacteria"> bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=enzyme" title=" enzyme"> enzyme</a>, <a href="https://publications.waset.org/abstracts/search?q=bioremediation" title=" bioremediation"> bioremediation</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanic%20workshop" title=" mechanic workshop"> mechanic workshop</a> </p> <a href="https://publications.waset.org/abstracts/78069/molecular-characterization-and-determination-of-bioremediation-potentials-of-some-bacteria-isolated-from-spent-oil-contaminated-soil-mechanic-workshops-in-kaduna-metropolis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78069.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">222</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12760</span> Study on the Transition to Pacemaker of Two Coupled Neurons</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sun%20Zhe">Sun Zhe</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruggero%20Micheletto"> Ruggero Micheletto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research of neural network is very important for the development of advanced next generation intelligent devices and the medical treatment. The most important part of the neural network research is the learning. The process of learning in our brain is essentially several adjustment processes of connection strength between neurons. It is very difficult to figure out how this mechanism works in the complex network and how the connection strength influences brain functions. For this reason, we made a model with only two coupled neurons and studied the influence of connection strength between them. To emulate the neuronal activity of realistic neurons, we prefer to use the Izhikevich neuron model. This model can simulate the neuron variables accurately and it’s simplicity is very suitable to implement on computers. In this research, the parameter ρ is used to estimate the correlation coefficient between spike train of two coupling neurons.We think the results is very important for figuring out the mechanism between synchronization of coupling neurons and synaptic plasticity. The result also presented the importance of the spike frequency adaptation in complex systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title="neural networks">neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=noise" title=" noise"> noise</a>, <a href="https://publications.waset.org/abstracts/search?q=stochastic%20processes" title=" stochastic processes"> stochastic processes</a>, <a href="https://publications.waset.org/abstracts/search?q=coupled%20neurons" title=" coupled neurons"> coupled neurons</a>, <a href="https://publications.waset.org/abstracts/search?q=correlation%20coefficient" title=" correlation coefficient"> correlation coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=synchronization" title=" synchronization"> synchronization</a>, <a href="https://publications.waset.org/abstracts/search?q=pacemaker" title=" pacemaker"> pacemaker</a>, <a href="https://publications.waset.org/abstracts/search?q=synaptic%20plasticity" title=" synaptic plasticity"> synaptic plasticity</a> </p> <a href="https://publications.waset.org/abstracts/27186/study-on-the-transition-to-pacemaker-of-two-coupled-neurons" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27186.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">284</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12759</span> Environmental Potentials within the Production of Asphalt Mixtures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Florian%20Gsch%C3%B6sser">Florian Gschösser</a>, <a href="https://publications.waset.org/abstracts/search?q=Walter%20Purrer"> Walter Purrer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper shows examples for the (environmental) optimization of production processes for asphalt mixtures applied for typical road pavements in Austria and Switzerland. The conducted “from-cradle-to-gate” LCA firstly analyzes the production one cubic meter of asphalt and secondly all material production processes for exemplary highway pavements applied in Austria and Switzerland. It is shown that environmental impacts can be reduced by the application of reclaimed asphalt pavement (RAP) and by the optimization of specific production characteristics, e.g. the reduction of the initial moisture of the mineral aggregate and the reduction of the mixing temperature by the application of low-viscosity and foam bitumen. The results of the LCA study demonstrate reduction potentials per cubic meter asphalt of up to 57 % (Global Warming Potential–GWP) and 77 % (Ozone depletion–ODP). The analysis per square meter of asphalt pavement determined environmental potentials of up to 40 % (GWP) and 56 % (ODP). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=asphalt%20mixtures" title="asphalt mixtures">asphalt mixtures</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20potentials" title=" environmental potentials"> environmental potentials</a>, <a href="https://publications.waset.org/abstracts/search?q=life%20cycle%20assessment" title=" life cycle assessment"> life cycle assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=material%20production" title=" material production"> material production</a> </p> <a href="https://publications.waset.org/abstracts/9647/environmental-potentials-within-the-production-of-asphalt-mixtures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9647.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">532</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12758</span> The Latency-Amplitude Binomial of Waves Resulting from the Application of Evoked Potentials for the Diagnosis of Dyscalculia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maria%20Isabel%20Garcia-Planas">Maria Isabel Garcia-Planas</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Victoria%20Garcia-Camba"> Maria Victoria Garcia-Camba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recent advances in cognitive neuroscience have allowed a step forward in perceiving the processes involved in learning from the point of view of the acquisition of new information or the modification of existing mental content. The evoked potentials technique reveals how basic brain processes interact to achieve adequate and flexible behaviours. The objective of this work, using evoked potentials, is to study if it is possible to distinguish if a patient suffers a specific type of learning disorder to decide the possible therapies to follow. The methodology used, is the analysis of the dynamics of different areas of the brain during a cognitive activity to find the relationships between the different areas analyzed in order to better understand the functioning of neural networks. Also, the latest advances in neuroscience have revealed the existence of different brain activity in the learning process that can be highlighted through the use of non-invasive, innocuous, low-cost and easy-access techniques such as, among others, the evoked potentials that can help to detect early possible neuro-developmental difficulties for their subsequent assessment and cure. From the study of the amplitudes and latencies of the evoked potentials, it is possible to detect brain alterations in the learning process specifically in dyscalculia, to achieve specific corrective measures for the application of personalized psycho pedagogical plans that allow obtaining an optimal integral development of the affected people. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dyscalculia" title="dyscalculia">dyscalculia</a>, <a href="https://publications.waset.org/abstracts/search?q=neurodevelopment" title=" neurodevelopment"> neurodevelopment</a>, <a href="https://publications.waset.org/abstracts/search?q=evoked%20potentials" title=" evoked potentials"> evoked potentials</a>, <a href="https://publications.waset.org/abstracts/search?q=Learning%20disabilities" title=" Learning disabilities"> Learning disabilities</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a> </p> <a href="https://publications.waset.org/abstracts/133533/the-latency-amplitude-binomial-of-waves-resulting-from-the-application-of-evoked-potentials-for-the-diagnosis-of-dyscalculia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/133533.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">140</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12757</span> Robot Navigation and Localization Based on the Rat’s Brain Signals</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Endri%20Rama">Endri Rama</a>, <a href="https://publications.waset.org/abstracts/search?q=Genci%20Capi"> Genci Capi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shigenori%20Kawahara"> Shigenori Kawahara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mobile robot ability to navigate autonomously in its environment is very important. Even though the advances in technology, robot self-localization and goal directed navigation in complex environments are still challenging tasks. In this article, we propose a novel method for robot navigation based on rat’s brain signals (Local Field Potentials). It has been well known that rats accurately and rapidly navigate in a complex space by localizing themselves in reference to the surrounding environmental cues. As the first step to incorporate the rat’s navigation strategy into the robot control, we analyzed the rats’ strategies while it navigates in a multiple Y-maze, and recorded Local Field Potentials (LFPs) simultaneously from three brain regions. Next, we processed the LFPs, and the extracted features were used as an input in the artificial neural network to predict the rat’s next location, especially in the decision-making moment, in Y-junctions. We developed an algorithm by which the robot learned to imitate the rat’s decision-making by mapping the rat’s brain signals into its own actions. Finally, the robot learned to integrate the internal states as well as external sensors in order to localize and navigate in the complex environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brain-machine%20interface" title="brain-machine interface">brain-machine interface</a>, <a href="https://publications.waset.org/abstracts/search?q=decision-making" title=" decision-making"> decision-making</a>, <a href="https://publications.waset.org/abstracts/search?q=mobile%20robot" title=" mobile robot"> mobile robot</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20network" title=" neural network"> neural network</a> </p> <a href="https://publications.waset.org/abstracts/68202/robot-navigation-and-localization-based-on-the-rats-brain-signals" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68202.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">297</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12756</span> Potentials of Underutilised Crops in the Nigerian Farming Systems for Sustainable Food Production and Economic Empowerment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jesse%20Silas%20Mshelia">Jesse Silas Mshelia</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Mamman%20Degri"> Michael Mamman Degri</a>, <a href="https://publications.waset.org/abstracts/search?q=Akeweta%20Emmanuel%20Samaila"> Akeweta Emmanuel Samaila</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This review was conducted in the North-Eastern part of Nigeria where there are a lot of challenges of poverty and low level of productivity of farmlands as a result of dwindling soil fertility and dependence on crops that are not so much adopted to the soil and climatic condition and the prevailing farming systems of the area which is predominantly mixed cropping. The crops that are neglected are well fitted into this system of production and yield better with the low level of input and management and give a higher profit margin. These crops, the farmers have mastered the production techniques, but do not have the scientific knowledge to improve the quality of the seed and the products hence need the intervention of modern technologies to benefit maximally from the full potentials of these crops. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=farming%20systems" title="farming systems">farming systems</a>, <a href="https://publications.waset.org/abstracts/search?q=neglected%20crops" title=" neglected crops"> neglected crops</a>, <a href="https://publications.waset.org/abstracts/search?q=potentials" title=" potentials"> potentials</a>, <a href="https://publications.waset.org/abstracts/search?q=underutilised" title=" underutilised"> underutilised</a> </p> <a href="https://publications.waset.org/abstracts/52113/potentials-of-underutilised-crops-in-the-nigerian-farming-systems-for-sustainable-food-production-and-economic-empowerment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52113.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">375</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12755</span> The Enzyme Inhibitory Potentials of Different Extracts from Linaria genistifolia subsp. genistifolia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gokhan%20Zengin">Gokhan Zengin</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdurrahman%20Aktumsek"> Abdurrahman Aktumsek</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The key enzyme inhibitory theory is one of the most accepted strategies in the treatment of global health problems including Alzheimer’s Disease and Diabetes mellitus. For this reason, the enzyme inhibitory potentials of different solvent extracts from Linaria genistifolia subsp. genistifolia were investigated against cholinesterase, and tyrosinase. The in vitro enzyme inhibitory potentials were measured with a microplate reader. The acetone and methanol extracts exhibited the strongest enzyme inhibitory effects on cholinesterase. However, the water extract was only active on tyrosinase. The results suggested that Linaria genistifolia subsp. genistifolia could be considered as a source of natural enzyme inhibitors for the treatment of major health problems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=enzyme%20inhibitors" title="enzyme inhibitors">enzyme inhibitors</a>, <a href="https://publications.waset.org/abstracts/search?q=cholinesterase" title=" cholinesterase"> cholinesterase</a>, <a href="https://publications.waset.org/abstracts/search?q=tyrosinase" title=" tyrosinase"> tyrosinase</a>, <a href="https://publications.waset.org/abstracts/search?q=linaria" title=" linaria"> linaria</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkey" title=" Turkey"> Turkey</a> </p> <a href="https://publications.waset.org/abstracts/46806/the-enzyme-inhibitory-potentials-of-different-extracts-from-linaria-genistifolia-subsp-genistifolia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46806.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">310</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12754</span> Indium-Gallium-Zinc Oxide Photosynaptic Device with Alkylated Graphene Oxide for Optoelectronic Spike Processing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyong%20Oh">Seyong Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin-Hong%20Park"> Jin-Hong Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, neuromorphic computing based on brain-inspired artificial neural networks (ANNs) has attracted huge amount of research interests due to the technological abilities to facilitate massively parallel, low-energy consuming, and event-driven computing. In particular, research on artificial synapse that imitate biological synapses responsible for human information processing and memory is in the spotlight. Here, we demonstrate a photosynaptic device, wherein a synaptic weight is governed by a mixed spike consisting of voltage and light spikes. Compared to the device operated only by the voltage spike, ∆G in the proposed photosynaptic device significantly increased from -2.32nS to 5.95nS with no degradation of nonlinearity (NL) (potentiation/depression values were changed from 4.24/8 to 5/8). Furthermore, the Modified National Institute of Standards and Technology (MNIST) digit pattern recognition rates improved from 36% and 49% to 50% and 62% in ANNs consisting of the synaptic devices with 20 and 100 weight states, respectively. We expect that the photosynaptic device technology processed by optoelectronic spike will play an important role in implementing the neuromorphic computing systems in the future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=optoelectronic%20synapse" title="optoelectronic synapse">optoelectronic synapse</a>, <a href="https://publications.waset.org/abstracts/search?q=IGZO%20%28Indium-Gallium-Zinc%20Oxide%29%20photosynaptic%20device" title=" IGZO (Indium-Gallium-Zinc Oxide) photosynaptic device"> IGZO (Indium-Gallium-Zinc Oxide) photosynaptic device</a>, <a href="https://publications.waset.org/abstracts/search?q=optoelectronic%20spiking%20process" title=" optoelectronic spiking process"> optoelectronic spiking process</a>, <a href="https://publications.waset.org/abstracts/search?q=neuromorphic%20computing" title=" neuromorphic computing"> neuromorphic computing</a> </p> <a href="https://publications.waset.org/abstracts/93884/indium-gallium-zinc-oxide-photosynaptic-device-with-alkylated-graphene-oxide-for-optoelectronic-spike-processing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93884.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">173</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12753</span> The Hypolipidemic and Anti-Nephrotoxic Potentials of Vernonia calvoana Extract in Acetaminophen-Treated Male Wistar Rats</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Godwin%20E.%20Egbung">Godwin E. Egbung</a>, <a href="https://publications.waset.org/abstracts/search?q=Item%20J.%20Atangwho"> Item J. Atangwho</a>, <a href="https://publications.waset.org/abstracts/search?q=Diana%20O.%20Odey"> Diana O. Odey</a>, <a href="https://publications.waset.org/abstracts/search?q=Eyong%20U.%20Eyong"> Eyong U. Eyong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background of the study: The frequent abuse of acetaminophen by field workers in Calabar metropolis necessitated the present study on the hypolipidemic and anti-nephrotoxic potentials of Vernonia calvoana (VC) extract in acetaminophen (paracetamol) treated male albino Wistar rats Methods:. Thirty-five (35) male albino Wistar rats weighing 100-150 g were divided into five (5) groups of seven rats each. Group 1 served as normal control, group 2 received normal saline after treatment with Acetaminophen (PCM), group 3 was treated with VC extracts (200 mg/kg body weight), group 4 received VC extracts ( 400 mg/kg body weight) and group 5 was administered 100 mg/kg body weight of Vitamin E. At the end of the 21 days treatment period, the animals were sacrificed using chloroform vapours, and blood was collected via cardiac puncture and used for analyses of haematological as well as biochemical indices. Results: Results indicated significant decreases (p < 0.001) in LDL-c, TC and TG levels in groups 3,4 and 5 relative to both the control as well as group 2, the atherogenic index showed a significant decrease at p < 0.001) in all treated groups compared with control and PCM- treated group. However, both extracts treated groups and vitamin E treated group showed significant (p < 0.001) increase in HDL-c relative to the control and PCM treated group. Serum potassium concentration was significantly (p < 0.05 and 0.001) reduced across all the treated groups compared with control and PCM- treated groups. Group 4 showed significant (p < 0.001) increase in RBC count, Hb, and PCV compared with PCM- treated group. Conclusions: We therefore conclude that ethanolic leaf extract of VC possesses probable anti-anemic, hypolipidemic potentials, and also ameliorates serum electrolyte imbalance in paracetamol- induced toxicity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acetaminophen" title="acetaminophen">acetaminophen</a>, <a href="https://publications.waset.org/abstracts/search?q=haematological%20indices" title=" haematological indices"> haematological indices</a>, <a href="https://publications.waset.org/abstracts/search?q=hypolipidemic%20potentials" title=" hypolipidemic potentials"> hypolipidemic potentials</a>, <a href="https://publications.waset.org/abstracts/search?q=serum%20lipid%20profile" title=" serum lipid profile"> serum lipid profile</a>, <a href="https://publications.waset.org/abstracts/search?q=vernonia%20calvoana" title=" vernonia calvoana"> vernonia calvoana</a>, <a href="https://publications.waset.org/abstracts/search?q=wistar%20rats" title=" wistar rats"> wistar rats</a> </p> <a href="https://publications.waset.org/abstracts/45628/the-hypolipidemic-and-anti-nephrotoxic-potentials-of-vernonia-calvoana-extract-in-acetaminophen-treated-male-wistar-rats" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45628.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">261</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12752</span> Post-Processing Method for Performance Improvement of Aerial Image Parcel Segmentation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Donghee%20Noh">Donghee Noh</a>, <a href="https://publications.waset.org/abstracts/search?q=Seonhyeong%20Kim"> Seonhyeong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Junhwan%20Choi"> Junhwan Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Heegon%20Kim"> Heegon Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sooho%20Jung"> Sooho Jung</a>, <a href="https://publications.waset.org/abstracts/search?q=Keunho%20Park"> Keunho Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we describe an image post-processing method to enhance the performance of the parcel segmentation method using deep learning-based aerial images conducted in previous studies. The study results were evaluated using a confusion matrix, IoU, Precision, Recall, and F1-Score. In the case of the confusion matrix, it was observed that the false positive value, which is the result of misclassification, was greatly reduced as a result of image post-processing. The average IoU was 0.9688 in the image post-processing, which is higher than the deep learning result of 0.8362, and the F1-Score was also 0.9822 in the image post-processing, which was higher than the deep learning result of 0.8850. As a result of the experiment, it was found that the proposed technique positively complements the deep learning results in segmenting the parcel of interest. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aerial%20image" title="aerial image">aerial image</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20process" title=" image process"> image process</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20vision" title=" machine vision"> machine vision</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20field%20smart%20farm" title=" open field smart farm"> open field smart farm</a>, <a href="https://publications.waset.org/abstracts/search?q=segmentation" title=" segmentation"> segmentation</a> </p> <a href="https://publications.waset.org/abstracts/170203/post-processing-method-for-performance-improvement-of-aerial-image-parcel-segmentation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170203.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">81</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12751</span> Application of Post-Stack and Pre-Stack Seismic Inversion for Prediction of Hydrocarbon Reservoirs in a Persian Gulf Gas Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nastaran%20Moosavi">Nastaran Moosavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Mokhtari"> Mohammad Mokhtari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Seismic inversion is a technique which has been in use for years and its main goal is to estimate and to model physical characteristics of rocks and fluids. Generally, it is a combination of seismic and well-log data. Seismic inversion can be carried out through different methods; we have conducted and compared post-stack and pre- stack seismic inversion methods on real data in one of the fields in the Persian Gulf. Pre-stack seismic inversion can transform seismic data to rock physics such as P-impedance, S-impedance and density. While post- stack seismic inversion can just estimate P-impedance. Then these parameters can be used in reservoir identification. Based on the results of inverting seismic data, a gas reservoir was detected in one of Hydrocarbon oil fields in south of Iran (Persian Gulf). By comparing post stack and pre-stack seismic inversion it can be concluded that the pre-stack seismic inversion provides a more reliable and detailed information for identification and prediction of hydrocarbon reservoirs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=density" title="density">density</a>, <a href="https://publications.waset.org/abstracts/search?q=p-impedance" title=" p-impedance"> p-impedance</a>, <a href="https://publications.waset.org/abstracts/search?q=s-impedance" title=" s-impedance"> s-impedance</a>, <a href="https://publications.waset.org/abstracts/search?q=post-stack%20seismic%20inversion" title=" post-stack seismic inversion"> post-stack seismic inversion</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-stack%20seismic%20inversion" title=" pre-stack seismic inversion"> pre-stack seismic inversion</a> </p> <a href="https://publications.waset.org/abstracts/54295/application-of-post-stack-and-pre-stack-seismic-inversion-for-prediction-of-hydrocarbon-reservoirs-in-a-persian-gulf-gas-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54295.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">323</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=field%20excitatory%20post%20synaptic%20potentials&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=field%20excitatory%20post%20synaptic%20potentials&page=3">3</a></li> <li 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