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.
Results
Showing 1 to 20 of 320 for “"temporal dynamics"”.
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Temporal Dynamics of Heat Pain Sensations
… this thesis sought to 1) characterise the temporal profiles of the most prominent noxious heat-evoked sensations, 2) characterise sex differences in these sensations, 3) evaluate the magnitude of sharp pain quality evoked in hairy and glabrous skin, and 4) determine the role of absolute …
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Spatio-temporal dynamics before population collapse
… observation of critical slowing down in spatio-temporal dynamics before population collapse. In the first project, we mapped the bifurcation diagram experimentally and found that the populations became more vulnerable to disturbance closer to the tipping point. Fluctuations of population density …
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Temporal Dynamics of the Defense Cascade
Understanding physiological responses to threat can inform therapeutic interventions for phobias, anxieties, and PTSD. The defense cascade is reviewed as a theoretical model that predicts behavioral and physiological responses to threats. Nineteen undergraduates (five male), average age 19.4 …
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Nonlinear and Chaotic Spatio-temporal Dynamics in Semiconductor Superlattices
Die Ladungsträgerdynamik in Halbleiterübergittern wird theoretisch auf der Grundlage eines semiklassischen sequentiellen Tunnelmodells untersucht. Abhängig von den Modellparametern ergeben sich dabei laufende oder stationäre Anreicherungs- und Verarmungsfronten der Elektronen. Besonders …
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Temporal dynamics of nutrient flux across hydrologic unit boundaries
1 PDF file (xii, 146 pages)
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Spatio-temporal dynamics of the disordered Bose-Hubbard model
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Efficient learning of temporal dynamics with first-order methods
Temporal dynamical systems are pervasively used in data science to model high-dimensional data generating processes. For instance, event data are often modeled with point processes, while time series data are often captured by autoregressive models or differential equations. In this dissertation, …
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Ocular dominance and temporal dynamics in the venetian blind effect
… The first part (experiments 1 & 2) explores the dynamics of canceling the perceived depth from a geometric disparity using a contrast or a luminance disparity. The second part (experiments 3-5) explores the role of individual differences in the dynamics of perceived depth from contrast, …
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Spatial and temporal dynamics of plants colonizing species-poor hedgerows
… This thesis examines the spatial and temporal distributions of plant species in recent hedgerows in close proximity to remnant ancient woodland seed sources, and evaluates immigration, colonization and establishment processes that occur at this interface. Transects were used to sample …
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SPATIAL AND TEMPORAL DYNAMICS OF THE CHESAPEAKE BAY SEA NETTLE
The jellyfish Chrysaora chesapeakei forms large summer blooms in Chesapeake Bay, and has substantial ecological and economic impacts on local ecosystems. Limited information on this species is mostly due to difficulties collecting spatial information on jellyfish in dynamic coastal ecosystems. …
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Temporal dynamics of hot-electrons in metal films and alloys
… laser, enabling us to measure the ultrafast temporal response of the generated hot-carriers in the optical frequency range. Next, we look at the effect of the propagating surface plasmons on the relaxation dynamics of the excited carriers in a thin gold film. Furthermore, to analyze the …
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Modeling the spatial and temporal dynamics of coastal marsh birds
… place to examine habitat across spatial and temporal scales. My research focused on the secretive marsh bird guild (i.e. bitterns, rails, gallinules, grebes) with an emphasis on the king rail (Rallus elegans), a species of high conservation concern. My objectives were to investigate the …
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Spatio-Temporal Dynamics of Reaction Zones in Catalytic Monolith Reactors
… In this work, we studied the spatio-temporal dynamics of monolith reactors in three important cases, in order to provide guidance for improving the design and control of after-treatment systems. In the first part, a physics-based one-dimensional transient model is proposed to study …
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Spatial and temporal dynamics of an exploited reef-fish population
… depends on an understanding of its spatial and temporal dynamics. This thesis investigates the movement of galjoen and its fishery parameters, and evaluates the role of marine protected areas (MPAs) and alternative assessment strategies. A review of the literature shows that there are examples …
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Temporal Dynamics of Groundwater Flow Direction in a Glaciated, Headwater Catchment
… hydraulic conductivity, which can result in temporal variations in both magnitude and direction of flow. In this study, I investigated the temporal variability of groundwater flow in the soil zone (solum) within the critical zone of a headwater catchment at the Hubbard Brook Experimental …
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Modelling the spatial and temporal dynamics of upland birds in Scotland
… of models to investigate the spatial and temporal dynamics of populations may offer a means to identify the processes driving this change. In this thesis, we make use of models to examine the population ecology of three species of upland birds: red grouse, meadow pipit and capercaillie. …
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A neural clock underlying the temporal dynamics of an auditory memory
… stage of imitation when animals must form a temporally structured sensory memory, or template, of the action to be imitated. In the first chapter, I present work attempting to localize the brain regions involved in the formation of the sensory memory used in imitation. We provide evidence …
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Temporal Dynamics of Endogenous and Stimulus-Driven Attention: Combined ECoG/fMRI Studies
… by salient or unexpected stimuli); however, the dynamics by which these networks enable selection of attended sensory information are not well understood due to the low temporal resolution of functional neuroimaging. Here, we first used functional MRI to localize attention-related and other …
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Temporal Dynamics at the Neurobehavioral Interface: In Search of a Common Currency
… of behavior remains unclear. I investigate the dynamics of INT by measuring the median frequency (MF) via sliding window analyses in both electroencephalography (EEG) activity and subjects’ continuous behavioral assessment of their perceived engagement in different music pieces. The main …
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