Index Catalog // ScholarsArchive@OSU

The morphological events during the self-reassembly of the sea urchin embryo in culture

Creator:: Hamada, Spencer Hiroshi
Abstract:: The gastrula of the sea urchin Strongylocentrotus purpuratus was dissociated into single cells. In culture these cells appeared apolar, but reassembled into quasi-normal embryos composed of structures with polarized cells. In this study emphasis was placed on those morphological events coincident with the reestablishment of a polar orientation within the...
Resource Type:: Dissertation
Full Text:: Harris The gastrula of the sea urchin Strongylocentrotus purpuratus was dissociated into single cells

An ultrastructure study of oogenesis in the sea urchin, Strongylocentrotus purpuratus

Creator:: Chatlynne, Louise Geller
Abstract:: Oogenesis in the sea urchin Strongylocentrotus purpuratus was studied at the fine structural level, with special emphasis on the relationship between the two main cell types within the ovary: the egg cells and the nutritive phagocytes, or accessory cells. The nutritive phagocytes are flagellated cells with extensive pseudopods which store...
Resource Type:: Dissertation
Full Text:: Paijcia Harris Oogenesis in the sea urchin Strongylocentrotus purpuratus was studied at the fine

Continuous Flow Microwave-Assisted Synthesis as a Potentially Scalable Nanomanufacturing Approach

Creator:: Albuquerque, Gustavo Henrique T. C. de
Abstract:: The development of nanomaterials and the potential enhancement of their chemical, mechanical, electrical, and optical properties have led to the investigation of methods for their synthesis at lower cost with enhanced performance for next generation devices. Along with the pursuit of new materials that exhibit properties of interest, industry requires...
Resource Type:: Dissertation
Full Text:: advisor Professor Gregory S. Herman for providing a great combination of independent research and

Studies of Chitin Nanofiber Production and Photoluminescent Biosilica from Diatoms with and without Germanium

Creator:: LeDuff, Paul A.
Abstract:: There is significant interest in harnessing the biosynthetic capacities of photosynthetic diatom microalgae for the production of unique bioinspired nanomaterials. Specifically, this research focuses on understanding the photoluminescent properties of diatom biosilica and β-chitin nanofiber production in diatoms. Diatoms are single-celled microalgae that possess intricately patterned biosilica shells called, frustules....
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Gregory L. Rorrer There is significant interest in harnessing the biosynthetic

The deposition and storage of hepatic lipids in the frog Ascaphus truei (Stejneger) : an electron microscopic histochemical and chromatographic study

Creator:: Belton, John Clair
Abstract:: Electron microscopic, histochemical and thin-layer chromatographic techniques have been used to study some cytological changes associated with seasonal lipid deposition in the liver of Ascaphus. Histochemical and chromatographic information has shown that unsaturated triglycerides occur in great quantities in the liver of pre-ovulatory females and may serve as a solvent...
Resource Type:: Dissertation
Full Text:: pre - ovulatory females and may serve as a solvent for estrogenic com- pounds as well as for

Time-lapse and electron microscope study of cultured epithelium subjected to calcium depletion with EDTA and its subsequent recovery

Creator:: Whitehead, Russell Albert
Abstract:: Primary monolayer cultures of chick renal epithelial cells grown on plastic coverslips were reversibly dissociated with the chelating agent ethylenediaminetetraacetic acid (EDTA). The cellular responses during dissociation and reaggregation in Hank's balanced salt solution (BSS) were observed with phase optics and recorded by time-lapse cinemicrography. The epithelial cells grow as...
Resource Type:: Dissertation
Full Text:: epithelial cells grow as a confluent sheet closely adherent to the plas tic substrate. EDTA induces a

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Creator:: Jeffryes, Clayton S.
Abstract:: There is significant interest in titanium oxide and germanium-silicon oxide nanocomposites for optoelectronic, photocatalytic, and solar cell applications. The ability of the marine diatom Pinnularia sp. to uptake soluble metal oxides from cell culture medium, and incorporate them into the micro- and nano-structure of their amorphous silica cell walls, called...
Resource Type:: Dissertation
Full Text:: Gregory L. Rorrer There is significant interest in titanium oxide and germanium-silicon oxide

Balancing Timber Production and Conservation in the Oregon Coast Range: an Examination of the Response by Birds and Bird-induced Ecosystem Services to Forest Management at Multiple Scales

Creator:: Harris, Scott H.
Abstract:: Society derives many critical and irreplaceable values from forests. With a growing global human population and rates of consumption, forests are under increasing pressure to provide all these values simultaneously. To meet societal demands for wood products, tree plantations are becoming increasingly common and are replacing native forests. Yet, forests...
Resource Type:: Dissertation
Full Text:: ”, Dr. Loyd Ervin Harris (1900-2000). Born in a dugout in Indian Territory, a farmer in Oklahoma

A comparative study of the dose distribution for three-phase and single-phase x-ray equipment

Creator:: Barone, Gregory Joseph
Abstract:: There has been a large increase in the number of three-phase diagnostic x-ray systems installed in hospital special-procedure rooms during the last decade. The reason for this is the capability of three-phase systems of making possible the very short exposure times and increased tube loading required for some of the...
Resource Type:: Dissertation
Full Text:: Distribution for Three-Phase and Single-Phase X-Ray Equipment by Gregory Joseph Barone A THESIS submitted

Riparian and adjacent upslope beetle communities along a third order stream in the western Cascade Mountain Range, Oregon

Creator:: Brenner, Gregory John
Abstract:: Monitoring wildlife habitats has become important to forest ecosystem management because it provides valuable information about the response of forests and their species to harvest practices, impacts from recreational use, conservation efforts, and natural and human-caused disturbances. Monitoring is a complex task that requires a variety of abiotic and biotic...
Resource Type:: Dissertation
Full Text:: Communities along a Third Order Stream in the Western Cascade Mountain Range, Oregon By Gregory J

ScholarsArchive@OSU

The morphological events during the self-reassembly of the sea urchin embryo in culture

An ultrastructure study of oogenesis in the sea urchin, Strongylocentrotus purpuratus

Continuous Flow Microwave-Assisted Synthesis as a Potentially Scalable Nanomanufacturing Approach

Studies of Chitin Nanofiber Production and Photoluminescent Biosilica from Diatoms with and without Germanium

The deposition and storage of hepatic lipids in the frog Ascaphus truei (Stejneger) : an electron microscopic histochemical and chromatographic study

Time-lapse and electron microscope study of cultured epithelium subjected to calcium depletion with EDTA and its subsequent recovery

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Balancing Timber Production and Conservation in the Oregon Coast Range: an Examination of the Response by Birds and Bird-induced Ecosystem Services to Forest Management at Multiple Scales

A comparative study of the dose distribution for three-phase and single-phase x-ray equipment

Riparian and adjacent upslope beetle communities along a third order stream in the western Cascade Mountain Range, Oregon

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