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 185 for “"sequester"”.
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Normalverlauf der Bandscheibendegeneration an der Lendenwirbelsäule in der Magnetresonanztomographie bei beschwerdefreien Patienten
… der Bandscheibe sowie vorliegende Sequester und Stenosen und desweiteren die Rückenform untersucht. Fazit: Es wurde eine Altersabhängigkeit und eine Abhängigkeit der Segmenthöhe hinsichtlich der Bandscheibendegeneration heraus gefunden.
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Maximising the benefits of cover crops through optimising the use of rotations, nitrogen fertiliser and organic manures
… that would otherwise be left fallow. Cover crops sequester nutrients, protect soil from the elements through mitigation of excess rainfall, enhance crop diversity and can positively impact soil health. This project investigates if the practice of integrating cover crops in arable rotations can …
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The Potential for Carbon Sequestration in Soils on Lignite Coal Minelands in East Texas
… become interested in the potential of forests to sequester large amounts of carbon in their above- and below-ground biomass as well as in the soils. It has been estimated that if the world's deforested lands were reforested and properly managed, they could have the potential to sequester five …
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THE ROLE OF TIGHT JUNCTION PROTEIN ZO-2 IN THE NUCLEUS AND ITS LINK TO TRANSCRIPTION FACTORS OF THE SLUG/SNAIL FAMILY
… ZO-2 constructs, we postulate that ZO-2 can sequester this transcription factor within the nucleus to sequester it from degradation by the proteasome in the cytosol. This model is placed in context with our current understanding of epithelial-to-mesenchymal transition and would be important …
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Mechanisms and management for soil carbon sequestration
… ecosystem services. The rate at which we lose or sequester more C in soils is of great importance for mitigating the rising atmospheric greenhouse gas concentrations as well as for maintaining the fundamental services that soils provide to humanity. Many of the mechanisms involved in accruing and …
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Water supply in the Eastern Cape: an economic case study of land rehabilitation in the Kromme River Catchment
… potential to provide a quality flow of water, sequester carbon and improve land productivity. The studies will be merged in a meta-analysis using a systems model by a PhD student, drawing generic conclusions on restoration in South Africa.
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Structure-function studies of the Parkinsonism-linked protein DJ-1
… in part, by acting as a copper carrier that can sequester the reactive metal and/or provide the copper cofactor for the activation of the Cu-Zn superoxide dismutase (SOD1). Using absorption spectroscopy and mass spectrometry, we found that DJ-1 binds one Cu(I) ion per DJ-1 homodimer. The …
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Ion sequestration particles for naval anticorrosion coatings
… based coatings.</p><p>ISPs were designed to sequester harmful ions while releasing passivating ions in their place. The passivating ions then migrate to defect sites at the coating interface where they act to inhibit corrosion. The anticorrosion performance of ISPs in epoxy coatings has been …
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Particle-chemical interactions and environmental chemodynamics of fine and ultrafine particles in a natural disaster scenario
… the environment. Fine particles in sediments can sequester chemicals from the water column, and release volatile and semi-volatile organic compounds to the gas phase upon exposure to air. Ultrafine particles which are photoreactive can degrade these vapor-phase contaminants, and may transform the …
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CAG repeat expansions induce cytoplasmic RNA aggregation
… of liquid-like nuclear foci. These foci can sequester RNA-binding proteins, resulting in a loss of the RNA-binding proteins’ functions. Second, the expanded repeat tract in the RNA can undergo translation even if the repeat does not lie in a canonical coding sequence, a phenomenon termed …
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Enhancing CO₂ fixation by synergistic substrate cofeeding
… serve as promising leads since they not only sequester CO₂, but also convert it into a variety of value-added fuels, chemicals, and pharmaceuticals with high specificity. Additionally, as the organisms responsible for fixing CO₂ derive energy from free electrons or electron carriers such as …
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Stable Polymer Micelle Systems as Anti-cancer Drug Delivery Carriers
… of the nanoparticles were hydrophobic enough to sequester 1,6-diphenylhexatriene (DPH) and the anti-cancer drug doxorubicin (DOX). Nanoparticles with 0.5 wt% BAC stored at room temperature in 0.002 mg/ml solutions were stable for up to two weeks. Poly(ethylene …
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Soil carbon and nitrogen cycle modeling for bioenergy crops
… when harvested), and switchgrass (25%) to sequester significant quantities of atmospheric carbon dioxide (CO2) into the soil (up to 9.7 and 7.5 kg C m-2 accumulations in miscanthus and switchgrass, respectively, within the next 100 years), while reducing nitrogen (N) losses (approximately …
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An investigation into the dissolution of pyroxene : a precursor to mineral carbonation of PGM tailings in South Africa
… PGM ores in South Africa have the potential to sequester significant amounts of CO₂ (~14 Mt per annum). In the indirect pH swing method, silicate minerals are initially leached at low pH and then carbonated at high pH. A previous study on these tailings highlighted the slow extraction of cations …
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Characterization of a Drosophila model of Huntington's disease
… Htt aggregates in our Drosophila HD model that sequester other non-nuclear polyQ-containing proteins and block axonal transport.
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Forest carbon sequestration programs : reviewing and assembling Mexican efforts
This thesis examines current efforts to sequester carbon dioxide in the forests in Mexico. A brief review of the most relevant examples worldwide is also included in order to explain the international context and introduce some key concepts. The decision regarding the desirability of pursuing …
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Blue carbon sequestration potential in Zostera marina eelgrass beds of the K'omoks Estuary, British Columbia
… to contribute to climate change mitigation by sequestering significant amounts of blue carbon. Disconcertingly, seagrasses are experiencing global extent loss. Using dated sediment cores, the potential for carbon sequestration was assessed in Zostera marina eelgrass bed sediments of the K’ómoks …
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Design, Fabrication, and Implementation of a Single-Cell Capture Chamber for a Microfluidic Impedance Sensor
… The device will be able to capture a cell and sequester it long enough to enable measurement of the impedance spectra that can characterize cell. The proposed device will be designed to capture a single cell and permit back-flow to flush out excess cells in the chamber. The device will be …
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Carbon capture and storage in the U.S. : a sinking climate solution
… is a proposed technological solution that will sequester CO2 in the ground. Proponents of CCS have framed it as a "clean coal technology" and broadcast the story that it will solve both our dependence on coal and prevent future climate change impacts. However, the technology is not a practicable …
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Risk Aversion and Adoption of Conservation Agriculture Practices in Eastern Uganda
… practices (CAPs) to reduce soil erosion and sequester carbon. An ordered lottery selection was used to measure risk preferences and an ordered probit model was estimated. Thirty five percent of a random sample of 200 farmers in Tororo (and fifty three percent of 200 farmers in Kapchorwa) made …
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