Physical Sciences and Mathematics Commons^™

Gis Data: City Of Virginia Beach, Virginia Shoreline Inventory Report, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt

Data

Disclaimer:

The Center for Coastal Resources Management (CCRM) provides these data with the understanding that they are not guaranteed to be correct or complete, and conclusions drawn from the data set are the sole responsibility of the user. Every attempt has been made to ensure that these data and the documentation are reliable and accurate. CCRM, the Virginia Institute of Marine Science (VIMS), and the Commonwealth of Virginia assume no liability for any damages caused by inaccuracies in the data or documentation; and make no warranty, express or implied, as to the accuracy, completeness, or utility of this information, nor …

Gis Data: Lancaster County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon A. Killeen, Tamia Rudnicky, Julie Bradshaw, Kory Angstadt, David Stanhope, Christine Tombleson, Karen Duhring, Alexander D. Renaud, Robert Isdell, Pamela Braff, Benjamin P. Weissman, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: City Of Norfolk, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen A. Duhring, Kory Angstadt, Alexandra Procopi, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: City Of Virginia Beach, Virginia Shoreline Management Model, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Dan Schatt

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: City Of Alexandria Shoreline Management Model, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

A Modeling Study In The Regulation Of Stress On Neuronal Plasticity, Pengcheng Xiao

Mathematics Dissertations

How stress can affect human cognitive functions has been a very popular topic for researchers from different fields including physiology, psychology, biology, neuroscience, and applied mathematics. Hypothalamic−pituitary−adrenal (HPA) axis plays an important role in response to stress by releasing hormones, and level of glucocorticoid has been widely considered to be one key factor to distinguish people with different stress disorder. Emerging evidence has shown that glucocorticoid act on glutamate neurotransmission system and consequently influences neuronal activities’s cognitive function. It changes in the glutamate release and induces synapse plasticity change. Spike-Timing Dependent Plasticity (STDP) is one of the important neuroscience foundations …

Methods For Large-Scale Machine Learning And Computer Vision, Yeqing Li

Computer Science and Engineering Dissertations

With the advance of the Internet and information technology, nowadays people can easily collect and store tremendous amounts of data such as images and videos. Developing machine learning and computer vision to analysis and learn from the gigantic data sets is an interesting yet challenging problem. Inspired by the trend, this thesis focus on developing large-scale machine learning and computer vision techniques for the purpose of handling various kinds of problems on gigantic data sets. With respect to the problem of image classification, we employ the technique of sub-selection, which uses partial observations to efficiently approximate the original high dimensional …

Design And Analysis Of Place-Based Opportunistic Networks, Yanliang Liu

Computer Science and Engineering Dissertations

The swift growth and popularization of wireless technology and mobile smart phones have unfolded various opportunities and challenges before researchers' eyes. Opportunistic networks is one of the interesting and challenging topics. Generally speaking, opportunistic networks exploit the potential capability of existing mobile devices carried by people to provide pervasive computing service, such as data forwarding, without pre-planted infrastructures. The movement of mobile devices introduced by human activity plays a crucial role in the functionality of opportunistic networks, since it influences the contacts between different mobile devices. It is wellknown that human movement presents these place-centered features: intermittent hops between places …

Methods For Human Motion Analysis For American Sign Language Recognition And Assistive Environments, Zhong Zhang

Computer Science and Engineering Dissertations

The broad application domain of the work presented in this thesis is human motion analysis with a focus on hand detection for American Sign Language recognition and fall detection for assistive environments.One of the motivations of the proposed thesis is a semi-automatic vision based American Sign Language recognition system. This system allows a user to submit as query a video of the sign of interest, or simply perform the sign in front of a camera. The system then asks the user to annotate the hands' locations in the sign. Next, the hand trajectory of the query sign is compared with …

Gis Data: Prince William County, Virginia Shoreline Management Model, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky

Data

No abstract provided.

Light Driven Reduction Of Carbon Dioxide Via Ruthenium Polypyridyl Complexes In The Presence Of A Pyridinium Cocatalyst, Matthew West

Chemistry & Biochemistry Theses

The rapid increase in atmospheric carbon dioxide since the industrial revolution is now beginning to cause global climate changes which could adversely affect our planets ecosystem. Nonetheless, our ability to sustain the current world population and standard of living relies on cheap and abundant energy which is only currently obtainable from the continued use of fossil fuels, which further add CO2 to the atmosphere. Given these circumstances, there is considerable interest and urgency in the development of new technology which would help us replace fossil fuels with fuels derived from sustainable energy sources, and in particular, the sun. In particular, …

Concomitant Studies Of Two F420 Cofactor Dependent Enzymes: Binding Isotherms Of F420 Cofactor Dependent Glucose-6-Phosphate Dehydrogenase And Kinetic Analysis Of F420h2: Nadp+ Oxidoreductase Utilizing Isotope Effects Methods, Siqi Du

Chemistry & Biochemistry Theses

F420 cofactor, a flavin analogue, is a unique two electron carrier that has been found in a number of microorganisms. This thesis focuses on two F420-dependent enzymes (F420-dependent glucose-6-phosphate dehydrogenase and F420H2: NADP+ Oxidoreductase). First, F420-dependent glucose-6-phosphate dehydrogenase (FGD) from Mycobacterium tuberculosis has been shown to be essential for activation of the anti-TB prodrug PA-824. It has been suggested the Trp44 residue in the active side aids in the stabilization of possible intermediates during catalysis. Here, we examined the role of Trp44 during catalysis by creating the FGD W44A variant, which was catalytically inactive. However, we were able to isolate …

Cytotoxicty, Cellular Localization And Fluorescent Microscopy Of Malignant Cells Treated With Ruthenium (Ii) Complexes Of The Tetraazatetrapyridopentacene Ligand, Adam S. Dayoub

Chemistry & Biochemistry Theses

The ruthenium (II) polypyridyl complexes [(phen)2Ru(tatpp)Ru(phen)2]4+, (P) and [(phen)2Ru(tatpp)]2+, (MP) are promising anticancer activity candidates due to their observed cytotoxic effect against multiple cancer cell lines. These complexes contain a redox-active (tatpp) bridge and a cytotoxic selectivity against cancer lines that are of interest in cellular biological systems. They also exhibit the ability to regress tumor growth in mouse models and have been shown to cleave DNA with an inverse dependence with (O2). Significantly, these complexes may show a higher cytotoxic action in a hypoxic environment similar to that of tumors in vivo. This thesis is a direct test of …

The Role Of Remnant Native Vegetation And Management Strategies In The Reclamation Of Native Prairie Plant Communities, Heather Bass

Earth & Environmental Sciences Theses

Native prairie ecosystems are diminishing in Texas along with their ecosystem services. In order to restore the native prairie ecosystems and their services as a whole, the native prairie plant communities on which they are based must be reclaimed. Effects of past land use, dispersal of nearby remnant plant communities, and various management strategies on native plant community establishment were studied, in order to better understand the reclamation process and formulate recommendations for general native prairie plant community reclamation. Establishment of desired native prairie plant communities was negatively affected by more recent disturbance, but positivity affected by the proximity of …

A Geomechanical Equation For Fracture Density/Brittleness And Comparisons With A Mineralogical Brittleness Index, Louis Brett Zastoupil

Earth & Environmental Sciences Theses

As production of hydrocarbons from tight reservoirs becomes more prevalent, the need to understand fracture density and what can affect fracture density has become the goal of new research. In this study, fracture density is defined as the fracture surface area per volume (m-1), and is derived from strain energies and material properties of the rock. Brittleness is defined as the fracture density at a particular strain state.One purpose of the study is to use the dimensionless geomechanical equation, FdUaμ = A ν1-2ν + B, to test whether the strain conditions were constant from layer to layer. If they were, …

Trends In Seasonal Climate Variance In The Subtropical Reservoir Joe Pool Lake, Texas: Implications Dissolved Oxygen And Nutrient Distribution, Rebekah Ball

Earth & Environmental Sciences Theses

The primary causes of seasonal variance in temperature, hydrological cycle, and nutrient distribution of lakes, and the processes explaining these changes including climate change and land use changes have been investigated for several decades because the importance of lakes for water resources, recreation, and sensitive ecosystems. Many of the previous studies, however, have been focused predominately on natural lakes in temperate climates and not on subtropical reservoirs. In this study a seasonal survey of temperature, turbidity, dissolved oxygen, and nutrients on the Joe Pool reservoir in North Central Texas has been conducted almost weekly from November 21st of 2012 through …

Mechanistic And Kinetic Studies On F420h2: Nadp+ Oxidoreductase From Archeoglobus Fulgidus, Cuong Quang Le

Chemistry & Biochemistry Dissertations

F420H2: NADP+ Oxidoreductase (Fno) is an F420 cofactor dependent enzyme that catalyzes the reversible reduction of NADP+ to NADPH by transferring a hydride from the reduced F420 cofactor. F420 cofactor is an essential electron transfer carrier in methanogens. Methanogens play a critical role in carbon cycling because the methanogenic pathway reduces carbon dioxide to produce methane and is therefore linked to energy (1). The focus of this thesis is to study the hydride transfer mechanism of Fno from the extreme thermophile, Archeoglobus fulgidus using site directed mutagenesis, steady-state and pre-steady state kinetic methods. F420 is essential for catalysis within enzymes …

Spatio-Temporal Variations In Asthma Hospitalizations In Texas 2005-2011 By County And Possible Association With Ozone Exposure, Supatsara Khunsri

Earth & Environmental Sciences Dissertations

Texas asthma hospitalization data at the county level has been reviewed for the period 2005-2011. Exploratory data analysis revealed a general countywide reduction in the number of hospitalizations over this time period. The data revealed a clear rural county versus urban county disparity in asthma hospitalization rates which were different for both children (< 18 years) and adults (>18 years). County hospitalization rates (per 10,000 Texas residents) used in this study are based exclusively on inpatient hospitalizations. Asthma hospitalization data was provided by the Texas Department of State Health Services. Age-adjusted hospitalization rates revealed that the number of hospitalizations for counties designated as "rural" …

A Multiphysics Approach: Thermodynamics, Material Mechanics And Fluid Dynamics Of Magma Systems At Active Volcanic Regions, Cathina Leann Gunn De Rosas

Earth & Environmental Sciences Dissertations

Understanding the genesis, incubation, evolution and equilibration of silicic magma reservoirs that drive and source volcanic activity all over the planet is fundamental to the discipline of geology. The subsurface processes of magma infiltration, transport, alteration and fractionation determine the volumetric rate of crustal production as well as its chemical composition, pluton and batholith formation, the chemical and thermal evolution of the crust and the severity and frequency of volcanic extrusion, flood basalts and ocean ridge volcanism. The excess pressure of the magma system, as it evolves and drives surficial eruption, is a key factor in hazard prediction and mitigation …

Blocker-Based Scatter Correction For Cone-Beam Computed Tomography, Cong Zhao

Physics Theses

Cone-beam computed tomography (CBCT) imaging is widely used in radiation therapy for treatment planning and image-guided therapy. More x-ray scatter signals are detected by the two-dimensional detector arrays in CBCT than by the one-dimensional detector arrays in fan-beam CT (FBCT). Therefore, scatter contamination significantly degrades the image quality in CBCT and must be corrected for satisfying image quality.One approach for scatter correction is to use lead blockers. In such a method, the signal in the blocked regions is assumed to be the scatter signal and can be used to estimate the scatter signal in the unblocked region. However, this assumption …

Ferroelectric And Ferromagnetic Behavior Of Oxide Containing Thin Films, Hai In Choi

Physics Theses

Oxide materials are important due to their interesting physical properties for applications in future electronic devices. Thin film oxide materials show a variety of electric and magnetic properties such as ferroelectric, piezoelectric, ferromagnetic and superconducting properties.One intriguing material, bismuth ferrite, has shown room-temperature multiferroic order. It has ferroelectric order below the 1100 K Curie temperature and large remnant polarization. Also, it has antiferromagnetic order below the Néel temperature of 650 K. However, the bismuth ferrite has several defect-related issues such as bismuth volatilization, transition of iron valence electron states and oxygen vacancies. The multiferroic properties are changed by the defect …

On Solving Finitely Reflected Backward Stochastic Differential Equations, Wilber Alexander Ventura

Mathematics Dissertations

Classical theory gives a closed form representation of the density p(t,x), a solution to a linear parabolic PDE, via the Feynman-Kac Formula of the underlying diffusion process. In the non-linear PDE case there is no closed form representation for p(t,x) and instead one solves a SDE running back in time whose initial (deterministic value) coincides with p(t,x). This method of solving semi-linear parabolic PDEs is an effective alternative to known numerical schemes. Furthermore, the FBSDE approach allows for treatment of non-smooth coefficients in the PDE that cannot be handled by classical deterministic methods. One of the most important extensions of …

Haverstraw Bay Benthic Mapping Project Gis Data, Robert M. Cerrato

SoMAS Research Data

High-resolution backscatter and bathymetric maps created by multibeam and sidescan sonar surveys were used to identify five different seafloor bottom types within Haverstraw Bay. Grab samples were collected within these areas to characterize sediment properties and macrofauna. Selected sampling locations were revisited and seafloor images were obtained with an HD underwater camera. Multivariate analysis was used to identify the most important factors explaining variations in community structure. Results indicated that categorical variables defining bottom types, grain size, and water depth can explain about 42% of community structure variation. In addition, shell length data collected for Rangia cuneata, an introduced species, …

Biosynthesis Of Long-Chain Fatty Acid Amides, Kristen A. Jeffries

USF Tampa Graduate Theses and Dissertations

The vast variety of long-chain fatty acid amides identified in biological systems is intriguing. The general structure of a fatty acid amide is R-CO-NH-X, where R is an alkyl group and X is derived from an immense variety of biogenic amines. Although structurally simple, the bioactivities of these molecules as signaling lipids are very diverse and have just recently begun to emerge in the literature. Interest in the long-chain fatty acid amides dramatically increased following the identification and characterization of one specific N-acylethanolamine, N-arachidonoylethanolamine (anandamide), as the endogenous ligand for the cannabinoid receptors in the mammalian brain. Since …

Gis Data: Gloucester County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Karen Duhring, David Stanhope, Kory Angstadt, Christine Tombleson, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: James City County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen Duhring, Kory Angstadt, Alexandra Procopi, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: Middlesex County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Kory Angstadt, David Stanhope, Christine Tombleson, Karen Duhring, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: Northampton County, Virginia Shoreline Management Model, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: Stafford County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen Duhring, David Stanhope, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …

Gis Data: Northumberland County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen Duhring, David Stanhope, Kory Angstadt, Christine Tombleson, Alexandra Procopi, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …