Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 350 for “"spikes"”.
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Ground Reaction Force Differences Between Running Shoes, Racing Flats, and Distance Spikes in Runners
… running shoes, racing flats, and distance spikes, twenty intercollegiate distance runners ran across a force plate at 6.7m/s (for males) and 5.74m/s (for females) in each of the three types of shoes. In order to control for differences in foot strike, only subjects who had a heel strike …
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Optical imaging of dendritic spikes in apical oblique dendrites of layer 5 pyramidal neurons
… properties capable of generating dendritic spikes that could boost the impact of distal synaptic inputs. The strong passive filtering of the membrane and generation of local dendritic spikes enable different dendritic regions to function as independent computational compartments. While there …
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Optical imaging of dendritic spikes in apical oblique dendrites of layer 5 pyramidal neurons
… properties capable of generating dendritic spikes that could boost the impact of distal synaptic inputs. The strong passive filtering of the membrane and generation of local dendritic spikes enable different dendritic regions to function as independent computational compartments. While there …
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Essays on gasoline price spikes, environmental regulation of gasoline content, and incentives for refinery operation
… study the relationship between gasoline price spikes, environmental regulation of gasoline content, unanticipated refinery outages and other recent structural changes in the domestic oil market. In the first chapter, I detail current regulations related to gasoline content. Implemented …
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F-region Dusk Ion Temperature Spikes at the Equatorward Edge of the High Latitude Convection Region
… in the F-region ion temperature, or "Tᵢ spikes", were discovered in the evening while the radar was on the equatorward edge of the high latitude convection region. These enhancements were several hundred Kelvin above the background temperature, would last less than 15 minutes and were …
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Spinel: a framework for counting wheat spikes and kernels using UAV and ground-based imaging in breeding fields
Quantifying wheat spikes and kernels is crucial for evaluating the grain yield potential of diverse breeding lines. It enables breeders to measure grain yield and select superior breeding lines to improve crop productivity. Traditional methods for assessing these traits are labour-intensive, …
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The Acquisition and Analysis of Electroencephalogram Data for the Classification of Benign Partial Epilepsy of Childhood with Centrotemporal Spikes
… of benign childhood epilepsy with centrotemporal spikes. Despite huge advancements in the field of health informatics—natural language processing, machine learning, predictive modeling—there are significant barriers to the access of clinical data. These barriers include information blocking, …
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Uncovering Zn2+ and Ca2+ Homeostasis and Crosstalk in Primary Hippocampal Neurons
… fire spontaneous and synchronous Zn<sup>2+</sup> spikes at a specific time window (from 14 to 25 days in vitro (DIV)) without external stimuli. By blocking Ca<sup>2+</sup> influx from voltage-gated Ca<sup>2+</sup> channels (VGCCs) and glutamate receptors, we found such Zn<sup>2+</sup> spikes are …
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The control of prolactin secretion and the role of gonadotrophin releasing hormone in the production of concordant secretory spikes of luteinizing hormone and prolactin in the luteal phase of the menstrual cycle
… genesis of the concordance of these secretory spikes. Using a potent GnRH antagonist an experiment was undertaken to establish the role of GnRH by blocking this hypothalamic peptide and observing the effect that this had on luteinizing hormone, prolactin and follicle stimulating hormone. In the …
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On neural spike sorting with mixture models
… neural data. The second is to identify the spikes, i.e. the little curves in the recorded neural data, with the neurons. The third is to find the characteristic spike shape of each neuron. Spike sorting can not be formulated in standard terms of multivariate clustering. Because a spike can …
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The Interictal State In Epilepsy And Behavior
… activity between seizures, known as interictal spikes. Interictal spikes have thus far been poorly researched, yet growing evidence supports an important role for them in epilepsy. In this project, we first show the high variability between reviewers in marking interictal spikes on intracranial …
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Rekurentinių diagramų tipo metodai elektroencefalogramų analizei /
… analyzing epileptiform discharges also known as spikes. In this work, the author tried to classify the epilepsy types by performing the quantitative analysis of spikes sequences. Spikes were detected in patient's EEG with a special algorithm and then spikes were gathered to one sequence. The …
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Neurons in Cat Primary Visual Cortex cluster by degree of tuning but not by absolute spatial phase or temporal response phase
… cells recorded using tetrodes. A cluster of spikes corresponding to a putative cell obtained through automatic or manual spike sorting algorithms may contain spikes from other cells with similarly-shaped waveforms. Our algorithm preferentially removes contaminating spikes from other cells, …
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Enhancing Pavement Surface Macrotexture Characterization
… of these laser devices is the presence of 'spikes' in the collected data, which impact the texture measurements. The dissertation proposes two robust and innovative methods to overcome this limitation. The first method is a data-driven adaptive method that detects and removes the spikes from …
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Spiky strings and the AdS/CFT correspondence
… may be interpreted in terms of two kinds of spikes appearing on the strings: “large” spikes, yielding an infinite contribution to the energy and angular momentum of the string, and “small” spikes, representing finite excitations over the background of the “large” spikes. According to the …
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Studies on preconditioning with adenosine, glutamate and ouabain in rat hippocampal slices
… epsps, orthodromic and antidromic population spikes. Western blotting was used to detect any changes in the levels of HSP72 in the slices that may have occurred as a result of the depolarizing agents or the preconditioning treatments. It was first established that 5mM and 10mM glutamate …
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Copper Concentrations in Tidal Creeks and Estuaries of the Eastern Shore and the Relationship to Plasticulture and Copper-based Crop Protectants
… were higher than background (0 - 3 ug/L) only in spikes, during or immediately after runoff-producing rainfall events. These spikes registered as high as 263 ug/L total copper, or 127 ug/L dissolved copper. Plasticulture and copper-based crop protectants were affirmed as the cause of these spikes …
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Oscillatory Spiking Circuits: A biologically plausible architecture for fast and reliable spiking computations
… transmit information in discrete pulses, called spikes. The brain uses these to compute in a (usually) reliable fashion, and can do so rapidly. How to construct Spiking Neural Networks (SNNs) that achieve similar performance is still unknown. Here, we present an architecture for spiking neural …
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Simulating the Affects of Glutamatergic Afferents on the Firing Pattern of Midbrain Dopamine Neurons
… pattern and rate and increases the number of spikes fired in bursts by increasing the spikes per burst. A simulated doubling of the AMPA/NMDA ratio leads to a frequency increase that becomes more prominent at high firing rates, and an increase in the percent spikes fired in bursts. Changes in …
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