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Filtering by: Alternative title ssim Reference 97-5 Remove constraint Alternative title ssim: Reference 97-5 Decade 2010-2019 Remove constraint Decade: 2010-2019 Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Effects of pesticides on amphibians with special reference to the pyrethroidinsecticide, cypermethrin

    Creator:
    Biga, Lindsay M.
    Abstract:
    Pollution by pesticides is a ubiquitous concern for wildlife. The effects of pesticides are especially concerning in aquatic environments, which are particularly vulnerable as they have several exposure routes for the influx of chemicals. These effects are of particular concern as biodiversity loss reaches unprecedented rates. This includes recent declines...
    Resource Type:
    Dissertation
    Full Text:
    0. 13 (0 .0 5- 0. 33 ) Sa nd er s 1 97 0 m et hy l Xe no pu s l ae vi s G ut hi

  • Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

    Creator:
    Mansergh, Ryan H.
    Abstract:
    Oxo-hydroxo Group 5 metal clusters are an untapped resource to study and advance aqueous solution processing of metal oxide thin films. The tetramethylammonium (TMA) hexatantalate salt (TMA6[H2Ta6O19]) yields dense Ta2O5 films (~95% of the bulk ß-Ta2O5 density) with atomically smooth surfaces (<4 Å root mean square surface roughness). This same...
    Resource Type:
    Dissertation
    Full Text:
    . Title: Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

  • Reduced Order Modeling of Radiation Diffusion Kinetics via Proper Generalized Decomposition

    Creator:
    Alberti, Anthony L.
    Abstract:
    In this dissertation, we attempt to overcome the "curse of dimensionality" inherent to radiation diffusion kinetics problems by employing a novel reduced order modeling technique known as proper generalized decomposition (PGD). After verifying a proposed PGD algorithm and associated solvers through various tests, we explore its performance for computing reduced-order...
    Resource Type:
    Dissertation
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    comparing to a reference high-fidelity solution. For problems that exhibit sufficient spatial regularity

  • Development of Methods for Stereoselective Carbon-Carbon Bond Formation

    Creator:
    Wu, Zhenhua
    Abstract:
    Three distinct methods to achieve the stereoselective synthesis of carbon-carbon bonds were investigated, encompassing: (i) the formation of axially chiral biaryl molecules by enantioselective Suzuki cross-coupling, (ii) the synthesis of α-phenylalkylboronic esters by enantioselective chain extension, and (iii) the stereospecific synthesis of alkenes by eliminative cross-coupling of enantioenriched sp³-hybridized carbenoids....
    Resource Type:
    Dissertation
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    (ArBr) and aryl boronic acids [Ar’B(OH)2] in the presence of K3PO4 in PhMe solvent (6 examples, 4-97

  • A Wide Modulation Range and PVT-Tolerant Spread-Spectrum Modulation Clock Generator

    Creator:
    Sun, Hyuk
    Abstract:
    This dissertation presents a phase domain in-loop-bandwidth spread-spectrum clock generation technique. In this proposed technique, a charge-based discrete-time loop filter is proposed to enable the phase domain in-loop-bandwidth spread-spectrum modulation without a delta-sigma modulator or time-to-digital converter. The in-loop-bandwidth modulation technique maximizes the loop bandwidth to improve phase noise suppression...
    Resource Type:
    Dissertation
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    trade-offs: between reference frequency and spread-spectrum modulation range, and between the spread

  • Prevalence of Mathematics Anxiety in Preservice Teachers and Preservice Counselors

    Creator:
    Gill, Gurpal K.
    Abstract:
    Almost two decades have passed since the publication of Jackson and Leffingwell’s (1999) influential article on math anxiety in preservice school teachers and their worst math experiences. The present dissertation represents both a replication and an extension of the original study. Study Arm A was the replication study with preservice...
    Resource Type:
    Dissertation
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    high math anxiety, and 97% noted having a worst math experience. Results for the counselor arm were

  • Design and analysis techniques for nano-joule ADCs and sampling linearity

    Creator:
    Brown, Thomas (Thomas William)
    Abstract:
    Two aspects of ADC system performance are addressed in this work. First, the combination of the ADC and its associated reference are co-designed for an energy constrained remote sensing system. Second, sampling linearity is mathematically analyzed as a function of frequency to provide enhanced understanding into an ADC's requisite sampling...
    Resource Type:
    Dissertation
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    . . . . . . . . . . . 5 1.2.3 Voltage Reference Power Implications . . . . . . . . . . . . . 7 1.3 Frequency Dependent

  • Magnetotelluric Constraints on Lithospheric Properties in the Southeastern United States

    Creator:
    Murphy, Benjamin S.
    Abstract:
    By inverting EarthScope long-period magnetotelluric (MT) data from the southeastern United States (SEUS), we obtain electrical conductivity images that provides key insights into the geodynamics of this region. Significantly, we resolve a highly electrically resistive block that extends to mantle depths beneath the modern Piedmont and Coastal Plain physiographic provinces....
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    Dissertation
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    interpreting seismic results purely in terms of reference models and the importance of integrating different

  • Influence of aging and behavioral experience on expression of GluN1 splice variants of the NMDA receptor in prefrontal cortex of mice brain

    Creator:
    Das, Siba Ranjan
    Abstract:
    As the aging population continues to grow the world over, age related complications become more and more apparent among the elderly population. One such complication is age associated memory impairment, which makes the elderly more dependent on caregivers early on. NMDA receptors in the brain are important for memory formation,...
    Resource Type:
    Dissertation
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    form in orbital cortex showed the best performances in spatial working and reference memory tasks

  • An assessment of plant community structure, herbivory, soils, and state-and-transition theory on a winterfat (Krascheninnikovia lanata [Pursh] A.D.J. Meeuse & Smit) ecological site

    Creator:
    Matney, Casey A.
    Abstract:
    State-and-transition models (STMs) have been successfully used to describe ecological dynamics in woodlands, shrublands, grasslands, and several other ecosystems. Changes in vegetation and soil are measured to gauge and predict plant community dynamics within ecological states and transitions between alternative ecological states. Ecological states and their boundaries are defined by...
    Resource Type:
    Dissertation
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    historical reference plant community. Historical information, land manager experience, and scientific