Index Catalog // ScholarsArchive@OSU

Higher order differential geometry and some related questions

Creator:: Fredricks, Gregory Alan
Abstract:: A theory of higher order connections is developed as a reduction of the structure group of the jet bundle of sections of a smooth vector bundle. This definition leads naturally to higher order curvatures and covariant derivatives. Curvature Conditions for a second order partial differential operator to have constant coefficients...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF GREGORY ALAN FREDRICKS for the

A simulation model of wood dynamics in Pacific Northwest streams

Creator:: Meleason, Mark Alan
Abstract:: Conceptually, the dynamics of wood in streams can be viewed in terms of input and in-channel processes. Input processes are associated with both the riparian (tree fall, bank cutting, windthrow) and upslope forests (mass failures). In-channel processes include log breakage, movement, and decomposition. A mechanistic view of these processes is...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Mark Alan Meleason for the

Hydrogen isotopic composition of C₃₇ alkenones and the ecology and physiology of coccolithophores

Creator:: Wolhowe, Matthew D.
Abstract:: A three-part study was conducted into the impact of physiological and ecological variables on the net isotopic fractionation of hydrogen, α[subscript K₃₇], expressed in C₃₇ alkenones. First, alkenone-producer production, abundance, and export were characterized in the summertime Gulf of California and Eastern Tropical North Pacific using compound-specific, labeled in situ...
Resource Type:: Dissertation
Full Text:: Fredrick G. Prahl A three-part study was conducted into the impact of physiological and ecological

Cellular mechanisms of altered bovine luteal function in response to exogenous gonadotropin-releasing hormone

Creator:: Bertrand, Jennifer Elaine
Abstract:: To determine whether membrane-related events may be involved in attenuated luteal function after gonadotropin-releasing hormone (GnRH) administration, corpora lutea (CL) were removed from 10 beef heifers on day 7 of the estrous cycle after i.v. injection of GnRH or saline on day 2 of the cycle. Luteal slices were incubated...
Resource Type:: Dissertation
Full Text:: Hormone. Abstract approved: 4----- Fredrick Stormshak To determine whether membrane-related events may

Secretion of luteinizing hormone in response to exogenous melatonin in postpartum beef cows and ovariectomized beef heifers

Creator:: Sucheta, Susan Leers
Resource Type:: Dissertation
Full Text:: Ovariectomized Beef Heifers. Abstract approved: Fredrick Stormshak Two experiments were conducted to

Development of Cu-based Thin Films for Optoelectronic Applications

Creator:: Angelos, Gregory S.
Abstract:: CIGS and CdTe based commercial thin-ﬁlm solar cells (TFSCs) require an absorber thickness greater than 2 µm and 4 µm, respectively, to adequately absorb the solar spectrum. To efficiently extract photoexcited electrons, these TFSCs require relatively defect-free absorbers with high-minority carrier mobility (> 100 cm2V−1s−1) and long lifetime (> 10...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Gregory S. Angelos for the

Optical Sensors using Biological Photonic Crystals

Creator:: Squire, Kenneth James
Abstract:: This dissertation focuses on the application of diatom frustules, the biosilica shell of an algae possessing physical and photonic properties capable of enhancing optical signals, for the enhancement of optical sensing. In this work, we incorporate diatom frustules into biosensors for signal enhancement and improved target molecule detection. The potential...
Resource Type:: Dissertation
Full Text:: biosilica Kenneth Squire, Xianming Kong, Paul LeDuff, Gregory L. Rorrer, and Alan X. Wang

Utilization of lipid by primiparous beef heifers during the postpartum period

Creator:: Filley, Shelby Jean
Resource Type:: Dissertation
Full Text:: During the Postpartum Period. Abstract approved: Harley A. urner Fredrick Stormshak Experiments

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Creator:: Chiriboga Novillo, Omar Guillermo
Abstract:: Marine diatoms are unicellular photosynthetic organisms that produce unique nanomaterials, energy dense lipid-molecules, and specialty carbohydrate molecules that can be all extracted from a single microorganism. The centric marine diatom Cyclotella sp. was used as a model organism for cultivation in a biorefinery system, where multiple co-products can be harvested...
Resource Type:: Dissertation
Full Text:: Gregory L. Rorrer Marine diatoms are unicellular photosynthetic organisms that produce unique

Development of progeny of mice given DDT or parathion during gestation

Creator:: Al-Hachim, Ghazi Mohammed
Abstract:: Attempts were made to study the effect of parathion and DDT on the postnatal development of mice. Parathion, DDT or corn oil (control) was administered to gravid mice during the first, second, and third trimesters of pregnancy. Thus, nine groups of offspring were obtained. Four different techniques, Audiogenic Seizure, Conditioned...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGMENT The author wishes to express his sincere wishes and thanks to Dr. Gregory B. Fink for his help

ScholarsArchive@OSU

Higher order differential geometry and some related questions

A simulation model of wood dynamics in Pacific Northwest streams

Hydrogen isotopic composition of C₃₇ alkenones and the ecology and physiology of coccolithophores

Cellular mechanisms of altered bovine luteal function in response to exogenous gonadotropin-releasing hormone

Secretion of luteinizing hormone in response to exogenous melatonin in postpartum beef cows and ovariectomized beef heifers

Development of Cu-based Thin Films for Optoelectronic Applications

Optical Sensors using Biological Photonic Crystals

Utilization of lipid by primiparous beef heifers during the postpartum period

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Development of progeny of mice given DDT or parathion during gestation

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