Browsing by Subject "Water"
Now showing items 1-20 of 33
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A broad survey of hydraulic and mechanical safety in the xylem of conifers.
(Journal of experimental botany, 2014-08)Drought-induced forest dieback has been widely reported over the last decades, and the evidence for a direct causal link between survival and hydraulic failure (xylem cavitation) is now well known. Because vulnerability ... -
A Sustainability Plan for American Tobacco Campus
(2011-04-29)American Tobacco Campus (ATC) Management has committed to understanding the environmental impact of their campus and making strategic improvements, while reducing operational costs. This Masters Project focused on determining ... -
An Examination of PFAS for North Carolina Policymakers and Researchers
(2021-04-30)This Master’s Project aims to explore factors impacting the occurrence, distribution, toxicology and remediation of PFAS – a type of emerging contaminant – in North Carolina’s water. Research methods utilized include a literature ... -
Analyzing the Connections Among Water Access, Sanitation, Malaria and Diarrhea Outcomes in Rural Central Uganda
(2016-04-22)Access to safe water and sanitation around the world has increased significantly in the past few decades. The United Nations claims that 91% of the world’s population has access to safe water, exceeding the Millennium Development ... -
Assessing Community Based Water Organization Performance in Central America
(2017-06-26)What are the effects of household, community, technical, and environmental variables on the performance and resilience of CWOs in dry regions? Since 2014, drought has severely affected Central American economic and health ... -
Comparisons of Carbon and Water Fluxes of Pine Forests in Boreal and Temperate Climatic Zones
(2015)Quantifying carbon fluxes and pools of forest ecosystems is an active research area in global climate study, particularly in the currently and projected increasing atmospheric carbon dioxide concentration environment. Forest ... -
Control of the orientational order and nonlinear optical response of the "push-pull" chromophore RuPZn via specific incorporation into densely packed monolayer ensembles of an amphiphilic four-helix bundle peptide: characterization of the peptide-chromophore complexes.
(J Am Chem Soc, 2010-08-18)"Push-pull" chromophores based on extended pi-electron systems have been designed to exhibit exceptionally large molecular hyperpolarizabilities. We have engineered an amphiphilic four-helix bundle peptide to vectorially ... -
Differential coordination demands in Fe versus Mn water-soluble cationic metalloporphyrins translate into remarkably different aqueous redox chemistry and biology.
(Inorganic chemistry, 2013-05-06)The different biological behavior of cationic Fe and Mn pyridylporphyrins in Escherichia coli and mouse studies prompted us to revisit and compare their chemistry. For that purpose, the series of ortho and meta isomers of ... -
Foreign Aid Allocation and Impact: A Sub-National Analysis of Malawi
(2013-04-15)This project estimates the first sub-national model of foreign aid allocation and impact. Newly geocoded aid project data from Malawi is used in combination with multiple rounds of living standards data to predict the allocation ... -
Four-decade responses of soil trace elements to an aggrading old-field forest: B, Mn, Zn, Cu, and Fe.
(Ecology, 2008-10)In the ancient and acidic Ultisol soils of the Southern Piedmont, USA, we studied changes in trace element biogeochemistry over four decades, a period during which formerly cultivated cotton fields were planted with pine ... -
Hydraulic redistribution of soil water by roots affects whole-stand evapotranspiration and net ecosystem carbon exchange.
(New Phytol, 2010-07)*Hydraulic redistribution (HR) of water via roots from moist to drier portions of the soil occurs in many ecosystems, potentially influencing both water use and carbon assimilation. *By measuring soil water content, sap ... -
Integrated Water Finance Solutions to Drought in the Yakima Basin: Recommendations for the Yakima Drought Relief Pumping Plant (YDRPP)
(2017-04-28)Located within the United States Department of the Interior (DOI), the Natural Resource Investment Center (NRIC) was created under the Obama Administration to facilitate resource conservation through innovative partnerships ... -
Is there foul play in the leaf pocket? The metagenome of floating fern Azolla reveals endophytes that do not fix N2 but may denitrify.
(The New phytologist, 2018-01)Dinitrogen fixation by Nostoc azollae residing in specialized leaf pockets supports prolific growth of the floating fern Azolla filiculoides. To evaluate contributions by further microorganisms, the A. filiculoides microbiome ... -
Learning about Biomolecular Solvation from Water in Protein Crystals.
(The journal of physical chemistry. B, 2018-03)Water occupies typically 50% of a protein crystal and thus significantly contributes to the diffraction signal in crystallography experiments. Separating its contribution from that of the protein is, however, challenging ... -
Magnetic resonance water proton relaxation in protein solutions and tissue: T(1rho) dispersion characterization.
(PLoS One, 2010-01-05)BACKGROUND: Image contrast in clinical MRI is often determined by differences in tissue water proton relaxation behavior. However, many aspects of water proton relaxation in complex biological media, such as protein solutions ... -
Measuring morphological features using light-scattering spectroscopy and Fourier-domain low-coherence interferometry.
(Opt Lett, 2010-02-01)We present measurements of morphological features in a thick turbid sample using light-scattering spectroscopy (LSS) and Fourier-domain low-coherence interferometry (fLCI) by processing with the dual-window (DW) method. ... -
Modifying the ‘pulse-reserve’ paradigm for deserts of North America: precipitation pulses, soil water and plant responses
(Oecologia, 2004)The 'pulse-reserve' conceptual model--arguably one of the most-cited paradigms in aridland ecology--depicts a simple, direct relationship between rainfall, which triggers pulses of plant growth, and reserves of carbon and ... -
Performance and Risks of Acid Mine Drainage Neutralization with Fly Ash from India and the United States
(2021-04-30)Acid mine drainage (AMD) and coal ash disposal can affect the quality of surface and groundwater near mines and disposal sites. Water contamination from AMD is a major cause of environmental and water quality degradation ... -
Physical and economic potential of geological CO2 storage in saline aquifers.
(Environ Sci Technol, 2009-03-15)Carbon sequestration in sandstone saline reservoirs holds great potential for mitigating climate change, but its storage potential and cost per ton of avoided CO2 emissions are uncertain. We develop a general model to determine ... -
Physical and economic potential of geological CO2 storage in saline aquifers.
(Environ Sci Technol, 2009-03-15)Carbon sequestration in sandstone saline reservoirs holds great potential for mitigating climate change, but its storage potential and cost per ton of avoided CO2 emissions are uncertain. We develop a general model to determine ...
