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Articles 121 - 150 of 13643
Full-Text Articles in Physical Sciences and Mathematics
2018 - Groundwater Management In California, Michael Hanemann
2018 - Groundwater Management In California, Michael Hanemann
Related Research and Documents
In 2014, the California legislature for the first time took some steps to create a framework for regulating groundwater pumping in over-drafted basins by adopting the Sustainable Groundwater Management Act (SGMA), representing California's first statewide groundwater management planning program. SGMA called for local agencies to develop groundwater sustainability plans within the next five to seven years and then achieve sustainable levels of groundwater extraction by approximately 2040 to 2045. California's prior efforts to regulate groundwater extraction is discussed, as well as groundwater depletion.
2003 - Salinas Valley Sediment Sources
2003 - Salinas Valley Sediment Sources
Related Research and Documents
The Salinas River is listed by the Environmental Protection Agency (EPA) under the Clean Water Act’s ‘303d list’ as being impaired due to ‘sedimentation/siltation.' A plan for management of the total maximum daily load of sediment is thus mandated. This plan was to include an assessment of sediment sources in the Salinas Watershed. The study provided the technical basis for this source analysis, to be used by the Central Coast Regional Water Quality Control Board (CCRWQB) in the development of the Salinas Sediment TMDL.
1998 - 2030 Land Use And Water Needs Conditions
1998 - 2030 Land Use And Water Needs Conditions
Miscellaneous Monterey and San Luis Obispo County Documents and Reports
Documentation of the methodology and data used to estimate the land use, M&I water needs, and pumped agricultural water under the 2030 conditions. One of the primary goals of the Salinas River Basin Management Plan (BMP) is to meet the agricultural, and municipal and industrial water needs of the Valley under the existing conditions (1995 level of development) as well as, under the future conditions (2030 level of development), while stopping the seawater intrusion and balancing the hydrologic conditions in the basin. In order to meet the 2030 water needs, a reasonable estimate of land use and water use conditions …
Stream Dynamics In The Headwaters Of Post-Glacial Watershed Systems, Brett Gerard
Stream Dynamics In The Headwaters Of Post-Glacial Watershed Systems, Brett Gerard
Electronic Theses and Dissertations
This dissertation summarizes research examining watershed processes across Northern New England, with an emphasis on the Central and Coastal regions of Maine. The research presented here focuses on the linkages between watershed geomorphic conditions, climate, and surface flow regimes driving stream channel hydraulic conditions and bed dynamics governing channel geometry. The geologic and human history of the landscape provides the context in which earth surface processes are examined within the dominant physiographic settings in Maine to describe vulnerabilities to climate change. Results are summarized to support the development of sustainability solutions for forecasted watershed management problems by natural resource management …
1995 - North Monterey County Hydrogeologic Study Volume I, Water Resource
1995 - North Monterey County Hydrogeologic Study Volume I, Water Resource
Monterey County Water Resources Agency Engineering Reports
The purpose of the investigation was to develop a better understanding of the hydrogeologic setting in the North Monterey County (North County) area and to quantify the various components of water supply and demand. The investigation also focused on the institutional and planning issues associated with the resource limitations and suggests possible responses to these limitations. The investigation was intended to provide the Monterey County Water Resources Agency (MCWRA), as well as the Monterey County Departments of Planning, Building & Inspection and Division of Environmental Health, with data essential to developing a ground water management plan and to support modifications …
1996 - Monterey County Hydrogeologic Study, Volume Ii -- Critical Issues Report And Interim Management Plan, Final Report
Monterey County Water Resources Agency Engineering Reports
This document was a companion report to the North Monterey County Hydrogeologic Study, Volume I, dated October 1995. The document built from the technical understanding and problem identification developed in Volume I and focuses on key issues relative to developing a management plan for the water resources of the area. These included the interrelated policy, legal and financial issues that complicate the management of the resource. The purpose of the report was to provide an analysis of these issues towards the development of long-range management objectives.
Lozenge Tilings Of A Halved Hexagon With An Array Of Triangles Removed From The Boundary, Part Ii, Tri Lai
Lozenge Tilings Of A Halved Hexagon With An Array Of Triangles Removed From The Boundary, Part Ii, Tri Lai
Department of Mathematics: Faculty Publications
Proctor's work on staircase plane partitions yields an exact enumeration of lozenge tilings of a halved hexagon on the triangular lattice. Rohatgi later ex- tended this tiling enumeration to a halved hexagon with a triangle cut o from the boundary. In his previous paper, the author proved a common generalization of Proctor's and Rohatgi's results by enumerating lozenge tilings of a halved hexagon in the case an array of an arbitrary number of triangles has been removed from a non-staircase side. In this paper we consider the other case when the array of tri- angles has been removed from the …
1998 - Salinas Valley Water (Preliminary Analysis Of) The Cause And Cost Of Seawater Intrusion
1998 - Salinas Valley Water (Preliminary Analysis Of) The Cause And Cost Of Seawater Intrusion
Miscellaneous Monterey and San Luis Obispo County Documents and Reports
An analysis of the historical cause of seawater intrusion in the Pressure Area of Monterey County. An annual overdraft of groundwater resources near the coast coupled with a seasonal cycle of over pumping created a reversal in the groundwater gradient and associated cones of depression. "Marine intrusion has occurred in the 180-foot aquifer in recent years as a result of overdrafts." (Bulletin 52, 1946, p.27). The only overdrafts on groundwater in the Salinas Valley were in the East Side and Pressure Areas. "There was no shortage of groundwater in the remainder of the basin and no threat of deficiency under …
2000 - Geology Bibliography Of California, 1854–2000
2000 - Geology Bibliography Of California, 1854–2000
Miscellaneous Monterey and San Luis Obispo County Documents and Reports
The scope of this database is much broader in scope than the original list of consultant reports submitted to Monterey County governmental agencies and includes extensive references on regional geologic mapping, hydrogeology, economic geology, and research done in connection with the Parkfield Earthquake Prediction Experiment.
Major sources of information include:
• Monterey County Planning Department: a database of approximately 2,000 references within the
categories of geology, soil, water resources, and water quality.
• Monterey County Water Resources Agency.
• Monterey Peninsula Water Management District.
• The American Geological Institute’s GeoRef database.
• The U.S. Geological Survey’s National Geologic Map Database. …
Remote Sensing Of Icebergs In Greenland's Fjords And Coastal Waters, Jessica Scheick
Remote Sensing Of Icebergs In Greenland's Fjords And Coastal Waters, Jessica Scheick
Electronic Theses and Dissertations
Increases in ocean water temperature are implicated in driving recent accelerated rates of mass loss from the Greenland Ice Sheet. Icebergs provide a key tool for gaining insight into ice-ocean interactions and until recently have been relatively understudied. Here we develop several methods that exploit icebergs visible in optical satellite imagery to provide insight on the ice--ocean environment and explore how iceberg datasets can be used to examine the physics of iceberg decay and parent glacier properties. First, a semi-automated algorithm, which includes a machine learning-based cloud mask, is applied to six years (2000-2002 and 2013-2015) of the Landsat archive …
Controls On Phosphorus Export From An Agricultural Watershed: Amsden Brook, Fort Fairfield, Maine Usa., Gregory J. Mcdonald
Controls On Phosphorus Export From An Agricultural Watershed: Amsden Brook, Fort Fairfield, Maine Usa., Gregory J. Mcdonald
Electronic Theses and Dissertations
This study explores the sources and mechanisms of phosphorus (P) mobilization during base flow within the Amsden Brook watershed, Fort Fairfield, Maine, USA. Amsden Brook is an agriculturally dominated watershed drained by a spring-fed and perennial first- to second-order stream. We characterized the P concentrations within the watershed to investigate connections between soils, stream sediment, surface water, and groundwater. Waters were monitored monthly during the 2017 snow-free period for temperature, pH, dissolved oxygen, conductivity, soluble reactive P (SRP), total P, strong acid anions, strong base cations, dissolved organic carbon (DOC), Al, Fe, and Mn. Phosphorus speciation within soils and sediment …
Exploring Specificity And Stability Of A Molecularly Imprinted Polymer, Stephen Robert Shepherd
Exploring Specificity And Stability Of A Molecularly Imprinted Polymer, Stephen Robert Shepherd
Theses - ALL
Molecularly imprinted polymers (MIPs) have numerous practical applications, including integration with quartz crystal microbalances to make specific, stable, chemical sensors, but most published research literature does not provide details concerning the specificity or stability of such an imprinted polymer. A polymer made from polyacrylic acid monomers, templated with benzoic acid, was tested for specificity with solutions of benzoic acid, acetic acid, phenol, and terephthalic acid passed through samples of uniform size under vacuum filtration. Additionally, MIP samples were also stored for extended periods of time in varied microclimates and then tested for performance, and consequently, stability. Initial conclusions indicate that …
Deconvolution Of Membrane Protein-Detergent Complex Interactions, Aaron Wolfe
Deconvolution Of Membrane Protein-Detergent Complex Interactions, Aaron Wolfe
Dissertations - ALL
Membrane proteins are important in many biological functions such as cell-cell recognition, transport, and signaling; yet the study of these proteins is stunted due to their excessive aggregation in aqueous solutions. Detergents have been extensively exploited to mitigate this aggregation, and accomplish this by protecting the hydrophobic exterior of the membrane protein with their hydrophobic tails, while the polar heads of the detergents interact with the surrounding aqueous environment. Although detergents are of fundamental importance in many membrane protein studies, their selection is primarily done by trial and error screening. In this thesis, I will describe a method to utilize …
Chimera Ligand For Pili And Lectin A Protein Controls Antibiotic-Promoted Biofilm Formation, Swarming Motility, Tolerance And Persister Formation By Pseudomonas Aeruginosa, Hewen Zheng
Dissertations - ALL
Throughout the human history, the fight against bacterial infections had never stopped but the remedies for bacterial infections were often insufficient and for many infectious diseases, there was no treatment available. The revolution in antimicrobial infection therapy began with the discovery of penicillin by Alexander Fleming in 1928. However, since the first introduction of antibiotics, bacteria over time have evolved sophisticated resistant strains against almost all the available antibiotics which cause selection pressure on the bacteria to evolve their genetic makeup and develop resistance against such agents. Furthermore, bacteria can form surface attached multicellular communities known as biofilms. Bacteria residing …
Experimental And Computational Analysis Of Relative Energetic Stabilities Of Crystalline Anhydrous Polymorphs And Pseudopolymorphs, Teresa Dierks
Experimental And Computational Analysis Of Relative Energetic Stabilities Of Crystalline Anhydrous Polymorphs And Pseudopolymorphs, Teresa Dierks
Dissertations - ALL
The stability of pharmaceutical solids is impacted by the properties of both active and inactive ingredients. Given that the aqueous solubility of solid-state medicinal products can be directly linked to the component properties, it is prudent to carefully study these materials to predict bioavailability and shelf stability. The relative energetic stabilities of the molecular crystals of interest are governed by both the intermolecular forces and the molecular conformations within the structure. In this research, the electronic origins of crystalline stability were investigated using a combination of solid-state density functional theory (ss-DFT) and terahertz time-domain spectroscopy (THz-TDS). Terahertz spectroscopy of the …
Photolysis Kinetics Of Aromatic Pollutants In Liquid And Solid Environmental Condensed Phases, Alexa Stathis
Photolysis Kinetics Of Aromatic Pollutants In Liquid And Solid Environmental Condensed Phases, Alexa Stathis
Dissertations - ALL
Condensed phases in the environment are often chemically complex. Reactivity can differ significantly depending on the physical state (i.e. solid or liquid) and composition. Many laboratory studies that investigate reaction kinetics in condensed phases are done under simplified conditions that do not accurately reflect the complexity found in the environment. I have measured photolysis rate constants of the aromatic pollutants toluene, ethylbenzene, xylenes (TEX) and anthracene under environmentally-relevant conditions in order to improve fate predictions. The photolysis kinetics of TEX in water, ice and at ice surfaces were investigated using environmentally-relevant wavelengths. Previously, photolysis has not been considered a viable …
Climate Evolution Across The Mid-Brunhes Transition, Aaron M. Barth, Peter U. Clark, Nicholas S. Bill, Feng He, Nicklas G. Pisias
Climate Evolution Across The Mid-Brunhes Transition, Aaron M. Barth, Peter U. Clark, Nicholas S. Bill, Feng He, Nicklas G. Pisias
School of Earth & Environment Departmental Research
The Mid-Brunhes Transition (MBT) began ∼ 430 ka with an increase in the amplitude of the 100 kyr climate cycles of the past 800 000 years. The MBT has been identified in ice-core records, which indicate interglaciations became warmer with higher atmospheric CO2 levels after the MBT, and benthic oxygen isotope (δ18O) records, which suggest that post-MBT interglaciations had higher sea levels and warmer temperatures than pre-MBT interglaciations. It remains unclear, however, whether the MBT was a globally synchronous phenomenon that included other components of the climate system. Here, we further characterize changes in the climate system across the MBT …
Low Temperature Thermochronologic Constraints Across The East-Central Denali Fault: Evaluating Vertical Tectonics Along A Transpressive Orogen, Thomas Stuart Warfel
Low Temperature Thermochronologic Constraints Across The East-Central Denali Fault: Evaluating Vertical Tectonics Along A Transpressive Orogen, Thomas Stuart Warfel
Theses - ALL
The Denali Fault is an active intracontinental structure located ~500 km north of the southern Alaskan plate boundary. In 2002, a M 7.9 earthquake initiated on a previously unmapped thrust fault subsidiary to the Denali Fault (Susitna Glacier Thrust) and propagated ~227 km eastward along the east-central segment of the Denali Fault and the Totschunda Fault. The objective of this thesis is to evaluate how fault geometry and rheologic strength control spatial-temporal patterns of exhumation along large-scale transpressive structures. Apatite fission track (AFT) thermochronology and apatite (U-Th)/He (AHe) dating are used on a combination of bedrock and cobble samples to …
Characterizing Ancient Chemoclines Through The Use Of Pigment Biomarkers And Sedimentary Stable Isotope Signatures, Benjamin T. Uveges
Characterizing Ancient Chemoclines Through The Use Of Pigment Biomarkers And Sedimentary Stable Isotope Signatures, Benjamin T. Uveges
Dissertations - ALL
This dissertation focuses on identifying and qualifying chemocline dynamics, namely depth and stability, in stratified aquatic systems through the use of sedimentary pigments and the stable carbon and nitrogen isotopes of organic matter. The central aim of the research comprising this volume is to identify how chemocline fluctuations are expressed in the pigment and stable isotope signatures of aquatic sediments, and how those fluctuations may have impacted nutrient cycling in past intervals of marine anoxia and mass extinction.
In order to help gauge how the depth of the chemocline may affect specific pigment signatures and concentrations in sediments, I first …
Development Of Explicitly Correlated And Many-Body Diagrammatic Techniques For The Investigation Of Electron-Hole Correlation In Nanomaterials, Michael Gray Bayne
Development Of Explicitly Correlated And Many-Body Diagrammatic Techniques For The Investigation Of Electron-Hole Correlation In Nanomaterials, Michael Gray Bayne
Dissertations - ALL
The focus of this work is to develop theoretical methods that will accurately describe electron-electron and electron-hole correlation in nanoparticles using many-body diagrammatic techniques. Diagrammatic representation is a more complex representation of quantum mechanics, however, it becomes a more advantageous representation in its application to this work due to its ease of use. Diagrammatic techniques are essential to the ve methods presented here as they prove to be pivotal in theoretical development as well as providing useful information in extracting and visualizing fundamental physics to make useful approximations to the methods. In the projected congruent transformed Hamiltonian method with partial …
Adapting Proteins For Clinical And Industrial Use, Michelle Takacs
Adapting Proteins For Clinical And Industrial Use, Michelle Takacs
Dissertations - ALL
Enzymes are powerful tools that are capable of catalyzing reactions with high specificity and efficiency. Many naturally occurring enzymes are used as tools in industry and medicine, from food additives to pharmaceuticals to biofuel production. Protein engineering is used to make enzymes more readily available, to gain new or improved catalytic function, or optimize properties such as thermostability and enantioselectivity. In this thesis we will discuss the variety of ways proteins can be modified to one day be able to be put to use in industrial and clinical settings.
My goal has been to optimize proteins for industrial and clinical …
Atom-Specific Activation In Co Oxidation, Simon Schreck, Elias Diesen, Jerry Larue, Hirohito Ogasawara, Kess Marks, Dennis Nordlund, Matthew Weston, Martin Beye, Filippo Cavalca, Fivos Perakis, Jonas Sellberg, André Eilert, Kyung Hwan Kim, Giacomo Coslovich, Ryan Coffee, Jacek Krzywinski, Alex Reid, Stefan Moeller, Alberto Lutman, Henrik Öström, Lars G. M. Pettersson, Anders Nilsson
Atom-Specific Activation In Co Oxidation, Simon Schreck, Elias Diesen, Jerry Larue, Hirohito Ogasawara, Kess Marks, Dennis Nordlund, Matthew Weston, Martin Beye, Filippo Cavalca, Fivos Perakis, Jonas Sellberg, André Eilert, Kyung Hwan Kim, Giacomo Coslovich, Ryan Coffee, Jacek Krzywinski, Alex Reid, Stefan Moeller, Alberto Lutman, Henrik Öström, Lars G. M. Pettersson, Anders Nilsson
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
We report on atom-specific activation of CO oxidation on Ru(0001) via resonant X-ray excitation. We show that resonant 1s core-level excitation of atomically adsorbed oxygen in the co-adsorbed phase of CO and oxygen directly drives CO oxidation. We separate this direct resonant channel from indirectly driven oxidation via X-ray induced substrate heating. Based on density functional theory calculations, we identify the valence-excited state created by the Auger decay as the driving electronic state for direct CO oxidation. We utilized the fresh-slice multi-pulse mode at the Linac Coherent Light Source that provided time-overlapped and 30 fs delayed pairs of soft …
Studying Galaxy Troughs And Ridges Using Weak Gravitational Lensing With The Kilo-Degree Survey, Margot M. Brouwer, Vasiliy Demchenko, Joachim Harnois-Déraps, Maciej Bilicki, Catherine Heymans, Henk Hoekstra, Konrad Kuijken, Mehmet Alpaslan, Sarah Brough, Yan Chuan Cai, Marcus V. Costa-Duarte, Andrej Dvornik, Thomas Erben, Hendrik Hildebrandt, Benne W. Holwerda, Peter Schneider, Cristóbal Sifón, Edo Van Uitert
Studying Galaxy Troughs And Ridges Using Weak Gravitational Lensing With The Kilo-Degree Survey, Margot M. Brouwer, Vasiliy Demchenko, Joachim Harnois-Déraps, Maciej Bilicki, Catherine Heymans, Henk Hoekstra, Konrad Kuijken, Mehmet Alpaslan, Sarah Brough, Yan Chuan Cai, Marcus V. Costa-Duarte, Andrej Dvornik, Thomas Erben, Hendrik Hildebrandt, Benne W. Holwerda, Peter Schneider, Cristóbal Sifón, Edo Van Uitert
Faculty and Staff Scholarship
We study projected underdensities in the cosmic galaxy density field known as 'troughs', and their overdense counterparts, which we call 'ridges'. We identify these regions using a bright sample of foreground galaxies from the photometric Kilo-Degree Survey (KiDS), specifically selected to mimic the spectroscopic Galaxy And Mass Assembly survey. Using background galaxies from KiDS, we measure the weak gravitational lensing profiles of the troughs/ridges. We quantify the amplitude of their lensing strength A as a function of galaxy density percentile rank P and galaxy overdensity δ, and find that the skewness in the galaxy density distribution is reflected in the …
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Facilitating Pre-Service Teachers To Engage Emergent Bilinguals In Productive Struggle, Benjamin T. Dickey, Jim Ewing, Melissa Caruso, Emily D. Fulmer
Facilitating Pre-Service Teachers To Engage Emergent Bilinguals In Productive Struggle, Benjamin T. Dickey, Jim Ewing, Melissa Caruso, Emily D. Fulmer
Journal of Multicultural Affairs
This study utilized a multiple case study with qualitative research to examine how Pre-service teachers (PSTs) might engage Emergent Bilinguals (EBs) in productive struggle—grappling to solve problems (Warshauer, 2015). The researchers created a rubric based on Warshauer’s (2015) case study to record the types of questions PSTs asked as they tutored fourth grade EBs. Warshauer (2015) claimed PSTs should allow students more wait time and ask questions. She referred to such questions as affordance and probing guidance, which facilitates productive struggle. In order to discover more about the PSTs’ thinking, the researchers interviewed the PSTs before and after their first, …
Geologic Map And Structural Development Of The Noerthernmost Sur-Nacimiento Fault Zone, Central California Coast, Scott M. Johnston, John S. Singleton, Alan D. Chapman, Gabriella Murray
Geologic Map And Structural Development Of The Noerthernmost Sur-Nacimiento Fault Zone, Central California Coast, Scott M. Johnston, John S. Singleton, Alan D. Chapman, Gabriella Murray
Physics
The Sur-Nacimiento fault exposed along the central California coast (United States) juxtaposes the Salinian block arc against the Nacimiento block accretionary complex, cuts out the majority of the forearc basin and western arc, and requires a minimum of 150 km of orogen-normal crustal excision within the Mesozoic California convergent margin. Despite this significant strain, the kinematic evolution of the Sur-Nacimiento fault remains poorly understood, with diverse hypotheses suggesting sinistral, dextral, thrust, or normal displacement along the fault. This Late Cretaceous–Paleogene strain history is complicated by the location of the fault within a belt of subparallel faults that have accommodated significant …
Feasible Form Parameter Design Of Complex Ship Hull Form Geometry, Thomas L. Mcculloch
Feasible Form Parameter Design Of Complex Ship Hull Form Geometry, Thomas L. Mcculloch
University of New Orleans Theses and Dissertations
This thesis introduces a new methodology for robust form parameter design of complex hull form geometry via constraint programming, automatic differentiation, interval arithmetic, and truncated hierarchical B- splines. To date, there has been no clearly stated methodology for assuring consistency of general (equality and inequality) constraints across an entire geometric form parameter ship hull design space. In contrast, the method to be given here can be used to produce guaranteed narrowing of the design space, such that infeasible portions are eliminated. Furthermore, we can guarantee that any set of form parameters generated by our method will be self consistent. It …
Nano-Based Systems And Biomacromolecules As Carriers For Metallodrugs In Anticancer Therapy, Mina Poursharifi, Marek T. Wlodarczyk, Aneta J. Mieszawska
Nano-Based Systems And Biomacromolecules As Carriers For Metallodrugs In Anticancer Therapy, Mina Poursharifi, Marek T. Wlodarczyk, Aneta J. Mieszawska
Publications and Research
Since the discovery of cisplatin and its potency in anticancer therapy, the development of metallodrugs has been an active area of research. The large choice of transition metals, oxidation states, coordinating ligands, and different geometries, allows for the design of metal-based agents with unique mechanisms of action. Many metallodrugs, such as titanium, ruthenium, gallium, tin, gold, and copper-based complexes have been found to have anticancer activities. However, biological application of these agents necessitates aqueous solubility and low systemic toxicity. This minireview highlights the emerging strategies to facilitate the in vivo application of metallodrugs, aimed at enhancing their solubility and bioavailability, …