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 15 of 15 for “"Temporal study"”.
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The Carbon Budget of the Mekong River Basin: A Spatial and Temporal Study of Chemical Weathering
… weathering rates have been investigated. This study sampled 36 tributaries and 10 locations along the main channel to calculate the carbon budget of the Mekong River. Samples were collected over three field seasons, as well as a bi-monthly time--series from 2014-2017. HCO$_{3}^{-}$ and …
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A spatial and temporal study of the carbon cycle; the role of carbonates in buffering Earth’s climate
Canonically, changes in Earth’s atmospheric CO<sub>2</sub> concentrations have been attributed to an imbalance between volcanic degassing rates and silicate weathering. To force environmental changes in this way, such as the CO<sub>2</sub> decline observed during the Cenozoic Period (66 Myr - …
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The changing face of the Constantia Valley a temporal study of land use change in a heritage landscape
The study of land use change and urban morphology requires a multi-layered approach. Case studies are needed to gain an understanding of the local factors that are driving land use change and forming urban landscapes. This study will provide a temporal perspective on land use change in the …
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Analysis of Water Quality Parameters in East Texas: A Temporal Study of Attoyac Bayou Watershed Between 2010 to 2024
… was approved by EPA in 2016. The purpose of this study was to analyze the physical, chemical, and biological water quality (WQ) parameters in Attoyac Bayou and its tributaries (Naconiche Creek, Waffelow Creek, Terrapin Creek and Big Iron Ore Creek) between 2010 to 2024 and assess the effectiveness …
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Tidal Influences on Bacterial and Phytoplankton Abundances and the Resulting Effects on Patterns of Dissolved Oxygen in the Skidaway River Estuary
… (SRE), Savannah, GA during the summer of 2005. A temporal study looked at changes in DO concentrations, Chlorophyll a concentrations, bacterial abundance, water depth, and salinity, every hour, for 26 hours, over both a neap and a spring tide. A spatial study looked at changes in the above …
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Temporal change in the Namibian Ju|’hoansi intestinal microbiome
… are near-impossible to acquire. Alternatively, studying contemporary hunter-gatherers might allow us to gain insight into the pre-Industrial human IM. The Ju|’hoansi hunter-gatherers of Namibia are in transition to an increasingly Western lifestyle, providing an opportunity to study the effects …
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Microbial community dynamics in denitrifying biofilters receiving agricultural drainage
… two different approaches. First, in our spatial study we sampled one biofilter over the course of an afternoon in 2007 to determine how total and denitrifying bacterial communities varied by depth, transect, and position along a transect. Second, in our temporal study we sampled three biofilters …
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The evaluation and the application of array detectors for analytical luminescence spectroscopy.
… CHSF technique provides spectrally resolved temporal study of extended period luminescence emission with millisecond time resolution. The results of unique algorithms to restore the integrity of the image obtained with a two-dimensional CCD detector are described and applied. The algorithms …
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EFFECT OF CONSTITUTIVELY ACTIVATED LUTEINIZING HORMONE RECEPTOR ON THE MOUSE REPRODUCTIVE SYSTEM
… puberty and irregular estrous cyclicity. A temporal study from 2-24 weeks of age indicated elevated steroid levels and upregulation of steroidogenic acute regulatory protein as well as several steroidogenic enzyme genes. Ovaries of KiLHRD582G mice exhibited significant pathology with the …
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Using the Web Infrastructure for Real Time Recovery of Missing Web Pages
… the age of the content. We therefore conduct a temporal study of the decay of lexical signatures and titles and estimate their half-life. We further propose the use of tags that users have created to annotate pages as well as the most salient terms derived from a page's link neighborhood. We …
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Axon Development and Synapse Formation in Olfactory Sensory Neurons
… is therefore an attractive model for the study of axonal growth and synapse formation. The present set of studies attempts to provide insights into synapse formation and axonal development of olfactory sensory neurons. First, I sought to understand the regulation of expression of …
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Adversarial Déjà Vu: Jailbreak Dictionary Learning for Stronger Generalization to Unseen Attacks
… this hypothesis, we conduct a large-scale temporal study of jailbreak attacks spanning multiple years and develop an automated pipeline to extract adversarial skills from attack prompts. To reduce redundancy while preserving explanatory power, we compress these skills into a compact …
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Application of Mineral Magnetic Measurements as a Pollution Proxy for Urban Road Deposited Sediment
… use as particle size proxy. Therefore, this study addresses these issues by determining the extent of any linkages between magnetic properties and the physio-chemical concentrations of RDS. Investigations have focussed on a spatial temporal study (2008-10) of RDS from the City of …
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Biogeochemical investigations of methane-rich groundwaters in high Arctic glacial catchments
… methane escape. Through an extensive spatial study of proglacial groundwater springs on Svalbard, groundwater systems within glaciated catchments are found to be bringing to the surface deep-seated methane gas that was previously trapped beneath glaciers and permafrost in the Arctic. In this …
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The structure of global invasive assemblages and their relationship to regional habitat variables: converting scientifically relevant data into decision relevant information
… associated with PPA outputs. I also conducted a temporal study of distributional changes of crop pests worldwide to measure the degree of biotic homogenization that had occurred in the regional pest profiles over 10 years. The major findings were that homogenization is certainly occurring, but it …