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Filtering by: Creator Hobbs, P. V. Remove constraint Creator: Hobbs, P. V. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) License All rights reserved Remove constraint License: All rights reserved

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  • Mahler's order functions and algebraic approximation of p-adic numbers

    Creator:
    Dietel, Brian Christopher
    Abstract:
    If P is an integer polynomial denote the degree of P by ∂(P) and let H(P) be the maximum of the absolute value of the coefficients of P. Define Λ(P)=2[superscript ∂(P)]H(P) and for a fixed prime p let C[subscript p] denote the completion of the algebraic closure of the p-adic...
    Resource Type:
    Dissertation
    Full Text:
    there exist unique m ∈ Z with gcd(m, p) = 1 and n ∈ N, n ≥ 0 such that a = mpn. Define v(a) = n and if

  • An investigation of factors affecting the optimal output log distribution from mechanical harvesting and processing systems

    Creator:
    Marshall, Hamish Douglas
    Abstract:
    Globally the forest harvesting industry is becoming increasingly mechanized. Driving this trend is the desire to increase productivity and reduce cost, as well as to improve labor-related issues. With mechanization comes an in-forest platform for the introduction of state-of-the-art communication and measurement technologies, and powerful on-board computers. These systems have...
    Resource Type:
    Dissertation
    Full Text:
    to my other committee members, Dr Jim Funck, Dr Stephen Hobbs and Dr Tamzen Stringham, for their

  • Fourier Analysis and Equidistribution on the p-adic Integers

    Creator:
    Somasunderam, Naveen
    Abstract:
    In this dissertation, we use Fourier-analytic methods to study questions of equidistribution on the compact abelian group Zp of p-adic integers. In particu- lar, we prove a LeVeque-type Fourier analytic upper bound on the discrepancy of sequences. We establish p-adic analogues of the classical Dirichlet and Fejér kernels on R/Z,...
    Resource Type:
    Dissertation
    Full Text:
    Analysis and Equidistribution on the p-adic Integers Abstract approved: Clayton J. Petsche In this

  • Evaluating Biochar for the Sustainable Treatment of Heavy Metals in Stormwater: Characteristics, Mechanisms, and Barriers

    Creator:
    Burch, Sarah
    Abstract:
    Heavy metals, such as copper, zinc, and cadmium, are ubiquitous in stormwater and potentially toxic to aquatic organisms at low concentrations. Removal of heavy metals contamination by conventional treatment is expensive and does not always reduce metals concentrations low enough to ensure safety of all aquatic species. This research seeks...
    Resource Type:
    Dissertation

  • Radiation effects on III-V heterostructure devices

    Creator:
    Jun, Bongim
    Abstract:
    The neutron and electron radiation effects in Ill-V compound semiconductor heterostructure devices are studied in this thesis. Three types of devices investigated are AlGaAs/GaAs high electron mobility transistors (HEMTs), AlGaAs/InGaAs/GaAs heterostructure insulated gate field effect transistors (HIGFETs), and InP/InCaAs/InGaAs single heterojunction bipolar transistors (SHBTs). HEMTs and HIGFETs are primarily investigated...
    Resource Type:
    Dissertation
    Full Text:
    Doctor of Philosophy in Physics presented on July 1, 2002. Title: Radiation Effects on Ill-V

  • Effect of pharmaceuticals and natural products on multidrug resistance mediatedtransport in Caco-2 and MDCKII-MDR1 drug transport models

    Creator:
    Fan, Ying
    Abstract:
    This thesis details my investigation of some pharmaceuticals and natural products on the transport of drugs which are substrates of P-glycoprotein (P-gp), such as cyclosporin A (CSA) and digoxin by using Caco-2 and MDCKII-MDR1 drug transport models. Three objectives were performed to address this goal. The first objective was to...
    Resource Type:
    Dissertation
    Full Text:
    products on the transport of drugs which are substrates of P-glycoprotein (P-gp), such as cyclosporin A

  • Binding of bacterial lipopolysaccharide by the cationic amphiphilic peptide WLBU2 at interfaces

    Creator:
    Ryder, Matthew P.
    Abstract:
    Passage of blood through a sorbent device for removal of bacteria and endotoxin by specific binding with immobilized, membrane-active, bactericidal peptides holds promise for treating severe blood infections. Peptide insertion in the target membrane and stable binding is desirable, while membrane disruption and release of degradation products to the circulating...
    Resource Type:
    Dissertation
    Full Text:
    Amphiphilic Peptide WLBU2 at Interfaces AN ABSTRACT OF THE DISSERTATION OF Matthew P

  • Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

    Creator:
    Ober, Holly K.
    Abstract:
    Vegetation provides food for many insects, and many insects serve as food for bats. We investigated the linkages among these three trophic levels in riparian areas throughout the Oregon Coast Range by examining the influence of vegetation cover, composition, and structure on the activity of nocturnal insects and bats, the...
    Resource Type:
    Dissertation
    Full Text:
    Stream Management in the Oregon Coast Range, S. D. Hobbs, J. P. Hayes, R. L. Johnson, G. H. Reeves, T

  • Zooplankton of the Galapagos Islands

    Creator:
    Figueroa, Diego
    Abstract:
    The marine climate of the Galapagos is spatially and seasonally heterogeneous. A taxonomically comprehensive study of Galapagos zooplankton has never been done. This study is an initial effort to establish the distribution and community structure of zooplankton in the Archipelago. I collected zooplankton samples by vertical tows over the Galapagos...
    Resource Type:
    Dissertation
    Full Text:
    Page 1. Location, date, time, tow depth and seafloor depth for all sampling sites for the P/V

  • On Small Heights of Totally p-adic Numbers

    Creator:
    Stacy, Emerald T.
    Abstract:
    The height of an algebraic number A is a measure of how arithmetically complicated A is. We say A is totally p-adic if the minimal polynomial of A splits completely over the field of p-adic numbers. In this paper, we investigate what can be said about the smallest nonzero height...
    Resource Type:
    Dissertation
    Full Text:
    Ostrowski’s Theorem on Q, v must correspond to a place p of Q; in this case we write v ∣ p. The field of