Index Catalog // ScholarsArchive@OSU

Isolation and partial characterization of temperature sensitive division mutants of Chlamydomonas reinhardtii

Creator:: Wolff, Darold Melvin, 1940-
Abstract:: The primary objective of this study was to develop methods for the selection of temperature sensitive division (TSD) mutants of Chlamydomonas reinhardtii. Such methods were developed and four temperature sensitive (TS) mutants were isolated and partially characterized. Wild type (WT) cells of the plus mating type were synchronized by a...
Resource Type:: Dissertation
Full Text:: MUTANTS OF CHLAMYDOMONAS REINHARDTII Abstract approved: Redacted for Privacy D. 'Stuart Nacht The

Studies on some digenetic trematodes from Ritner Creek, Polk County, Oregon

Creator:: Law, Daniel Tin-Hung
Abstract:: Seven species of fresh water fishes belonging to three different families and two species of snails from Ritner Creek, Polk County, Oregon were surveyed for adult and larval trematodes. A total of seven species of trematodes representing four families was recovered from the intestine of the fishes. Of these, at...
Resource Type:: Dissertation
Full Text:: RITNER CREEK, POLK COUNTY, OREGON Abstract approved: Redacted for privacy Stuart E. Knat4o Seven

Urea release from sulfur-coated urea and nitrogen utilization by tall fescue

Creator:: Pettygrove, G. Stuart
Abstract:: Sulfur-coated urea (SCU), a slow release nitrogen fertilizer, may be economically competitive with conventional fertilizers, but little is known of the mechanism of urea release from SCU and the environmental factors which affect the urea release rate. Objectives of this thesis were: (1) to determine factors which affect the rate...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF George Stuart Pettygrove for

The relationship of lysosomal stability to radiation-induced delay of cell division in Tetrahymena pyriformis

Creator:: Hodge, Frederick Allen
Abstract:: Cell division in a heat synchronized Tetrahymena pyriformis (GL-I) cell can be delayed if the cell is exposed to X-irradiation (300 kVp, 20 mA, HVL = 0. 9 mm Cu, 25 R/ sec) prior to a critical time after the end of the synchronizing treatment (EST). At the critical time,...
Resource Type:: Dissertation
Full Text:: CELL DIVISION IN TETRAHYMENA PYRIFORMIS Abstract approved: Redacted for privacy D. Stuart Naftlt

Pathogenicity of experimentally induced concurrent infections of Fasciola hepatica and Haemonchus contortus in sheep

Creator:: Presidente, Paul J.
Abstract:: Twenty yearling sheep were allotted to four groups, each containing five sheep of approximately equal weight. On experimental days 0, 1, 2, 3, and 4, each sheep in each group was given the following inoculations by stomach tube: five sheep in group I (Fasciola hepatica-exposed controls) were given approximately 120...
Resource Type:: Dissertation
Full Text:: HEPATICA AND HAEMONCHUS CONTORTUS IN SHEEP Abstract approved: Redacted for privacy Stuart E. ,Knapp

Sphaeromyxa maiyai sp. n. (Protozoa:Myxosporidea) : a light microscopic and ultrastructural analysis employing the scanning and transmission electron microscopes

Creator:: Morrison, N. Donald
Abstract:: Sphaeromyxa maiyai sp. n. (Myxosporidea:Myxiidae) is described from the gall bladder of the Pacific tomcod, Microgadus proximus Girard, from Newport, Oregon. The plasmodial (=trophic, trophozoite) stage is discoid averaging between 1 and 2 cm. The spore averages 27.6 x 5. 6μm with pyriform polar capsules averaging 9. 3 x 3....
Resource Type:: Dissertation
Full Text:: MICROSCOPES Abstract approved: Redacted for Privacy Dr. Stuart E. Knapp[/ Dr. Ivan Pratt, deceased

The effect of ultra-high pressure on the emf of thermocouples

Creator:: Eide, Stuart Ames
Abstract:: The effect of ultra-high pressure on the thermal emf of a chromelialumel thermocouple is investigated using an indirect method which does not require a direct knowledge of the temperature of the pressurized junction. The unknown temperature is written parametrically as a function of a directly measured quantity, the electrical power...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF STUART AMES EIDE for the

The effects of various factors on the formation and fate of extranuclear chromatic bodies in Tetrahymena pyriformis

Creator:: Salamone, Michael
Abstract:: During karyokinesis in the ciliate, Tetrahymena pyriformis, strain GL-I, an extranuclear chromatin body (ECB) is frequently formed as an excluded mass between the two dividing daughter macronuclei. The formation and fate of ECB's were followed by means of Feu lgen, toluidine blue 0, and euchrysine staining and autoradiography (³H-thymidine). The...
Resource Type:: Dissertation
Full Text:: PYRIF9MIS Abstract approved: Redacted for Privacy Ernet T. DornfeldN Redacted for Privacy D. Stuart

The prompt responses of the sea urchin, Strongylocentrotus purpuratus, to ionizing radiation

Creator:: Dedrick, Millridge Cornelius
Resource Type:: Dissertation
Full Text:: encouragement and consideration given by Drs. Ronald H. Alvardo, D. Stuart Nachtwey, Tjeerd Van Andel, and

A computer simulation model of land use dynamics in the State of Oregon

Creator:: Calligan, C. C.
Abstract:: The dynamics of land use in the State of Oregon are simulated on a digital computer. The introductory chapter outlines the complex nature of the problems facing the post-industrial society and argues that the scientific and professional estates share in the responsibility for public policy formulation. The second chapter .presents...
Resource Type:: Dissertation
Full Text:: simulations of socio-economic systems; land use policy in Oregon; interdisciplinary research. (C

ScholarsArchive@OSU

Isolation and partial characterization of temperature sensitive division mutants of Chlamydomonas reinhardtii

Studies on some digenetic trematodes from Ritner Creek, Polk County, Oregon

Urea release from sulfur-coated urea and nitrogen utilization by tall fescue

The relationship of lysosomal stability to radiation-induced delay of cell division in Tetrahymena pyriformis

Pathogenicity of experimentally induced concurrent infections of Fasciola hepatica and Haemonchus contortus in sheep

Sphaeromyxa maiyai sp. n. (Protozoa:Myxosporidea) : a light microscopic and ultrastructural analysis employing the scanning and transmission electron microscopes

The effect of ultra-high pressure on the emf of thermocouples

The effects of various factors on the formation and fate of extranuclear chromatic bodies in Tetrahymena pyriformis

The prompt responses of the sea urchin, Strongylocentrotus purpuratus, to ionizing radiation

A computer simulation model of land use dynamics in the State of Oregon

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