Index Catalog // ScholarsArchive@OSU

Multiple stressors and amphibian population declines

Creator:: Hatch, Audrey C.
Abstract:: In the past decade, declines in amphibian populations have captured scientific and popular interest. The causes of the declines are likely to be complex and involve interactions between several environmental stressors. Using multifactorial experiments, I investigated the combined effects of several anthropogenic stressors on developing amphibians in Oregon, USA. In...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Audrey C. Hatch for the

The ecology of Lepidurus apus in northern Utah and some limnological requirements for hatching

Creator:: Braswell, Audrey Lee Jr
Abstract:: A survey of the major bodies of water, temporary and perennial, in the region of Northern Utah revealed a limited distribution of the Notostraca. Lepidurus (Linn.), the only representative found, was restricted to a single temporary shallow lake. Dry Lake, in the southern end of Cache County. Dry Lake occupies...
Resource Type:: Dissertation
Full Text:: limnological requirements for hatching Redacted for Privacy AN ABSTRACT OF THE THESIS OF Audrey Lee

Models and Modeling in Capstone Physical and Virtual Laboratory Projects

Creator:: Nefcy, Erick J.
Abstract:: The research presented in this dissertation focuses on the model generation and modeling processes of student teams that participate in capstone, undergraduate engineering physical and virtual laboratory projects. The Heat Exchange Laboratory Project, the Ion Exchange Laboratory Project, and the Virtual Chemical Vapor Deposition (CVD) Laboratory Project provide the context...
Resource Type:: Dissertation
Full Text:: counsel representative. I appreciate Dr. Audrey Champagne, who has supported much of this research with

Effects of lactofen herbicide on cellular uptake of glyphosate herbicide in malva parviflora L.

Creator:: Wells, Barbara Heard
Abstract:: Time-course growth chamber studies were conducted on little mallow (Malva parviflora L.) to determine whether sublethal doses of lactofen (1'-(carboethoxy)ethyl-5-[2-chloro-4-(trifluoromethyl) phenoxy]-2- nitrobenzoate) would enhance uptake of glyphosate (N'-(phosphonomethyl) glycine) by altering membrane permeability. Lactofen-induced membrane peroxidation was determined by harvesting leaf discs, measuring stress ethylene evolution, and recording increases in...
Resource Type:: Dissertation
Full Text:: for privacy Arnold P. Appleby Time-course growth chamber studies were conducted on little mallow

The effects of community college laboratory instruction and video-taped presentations involving the skeletal system on cognitive achievement and retention

Creator:: Kennedy, Gary Gower
Abstract:: The purpose of this study was to determine if a significant difference in cognitive achievement and retention occurred when skeletal system anatomy and terminology were presented utilizing either videotaped presentations or a traditional laboratory procedure. Fifty-three first semester nursing students enrolled in biology (Bio. 160 anatomy and physiology) at Lethbridge...
Resource Type:: Dissertation
Full Text:: approved Redacted for privacy Dr. Thomas P. Evans The purpose of this study was to determine if a

Biophysical analyses of peroxiredoxins and a partner reductase

Creator:: Hall, Andrea Renée
Abstract:: Peroxiredoxins (Prxs) are dominant peroxide-reducing enzymes with two important roles: they protect all organisms from oxidative damage induced by peroxides, and in eukaryotes, they participate in hydrogen peroxide signaling pathways. This dissertation presents studies aimed at the biophysical characterization of select Prxs and a Prx reductase to elucidate their structure-function...
Resource Type:: Dissertation
Full Text:: . Abstract approved: P. Andrew Karplus

Biosynthesis of blasticidin S : mechanistic and stereochemical investigations

Creator:: Prabhakaran, P. C.
Abstract:: Feeding of [3-¹³C, 2-¹⁵N]arginine, 38a, unequivocally established that the β- arginine moiety of blasticidin S, 1, was formed from α-arginine by an intramolecular migration of the α-amino group to the β- position. Further feedings using chirally deuteriated arginines 38e and 38f revealed that the aminomutase process occurred with inversion of...
Resource Type:: Dissertation
Full Text:: stereochemical investigations AN ABSTRACT OF THE THESIS OF P. C. Prabhakaran for the degree of Doctor of

Evolution and risk in conservation of Pacific salmon

Creator:: Currens, Kenneth P.
Abstract:: Identifying appropriate units for conservation requires knowledge of evolutionary patterns and risks of managing at different geographical and genetic scales. I examined genetic diversity at different geographical scales among 11,400 rainbow trout (Oncorhynchus mykiss) from 243 locations in 13 major river basins throughout much of their range and among coho...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Kenneth P. Currens for the degree

The effect of prepartum anionic diets on cortisol, adiponectin, and tumour necrosis factor-α expression at varying levels of body mass index in preparturient dairy cows: implications for insulin resistance

Creator:: Puntenney, Steven B.
Abstract:: Twenty-six Holstein and 18 Jersey multiparous cows in a randomized block design were assigned by calving date and breed to a non-anionic prepartum diet (CTRL) or a treatment diet containing a commercial anionic salt supplement (Animate®). Control and treatment diets were formulated to a dietary anion-cation difference (DCAD) of 21.3...
Resource Type:: Dissertation
Full Text:: levels between day 0 and day +1, but that this event was highly correlated (p-value = .003) with pre

An economic analysis of the municipal demand for water in Kuwait

Creator:: Al-Qunaibet, Mohammad H.
Resource Type:: Dissertation
Full Text:: A. Edwards, Dr. Harold M. Stults, Dr. Roger G. Kraynick, and Dr. Holyoke P. Adams for their

ScholarsArchive@OSU

Multiple stressors and amphibian population declines

The ecology of Lepidurus apus in northern Utah and some limnological requirements for hatching

Models and Modeling in Capstone Physical and Virtual Laboratory Projects

Effects of lactofen herbicide on cellular uptake of glyphosate herbicide in malva parviflora L.

The effects of community college laboratory instruction and video-taped presentations involving the skeletal system on cognitive achievement and retention

Biophysical analyses of peroxiredoxins and a partner reductase

Biosynthesis of blasticidin S : mechanistic and stereochemical investigations

Evolution and risk in conservation of Pacific salmon

The effect of prepartum anionic diets on cortisol, adiponectin, and tumour necrosis factor-α expression at varying levels of body mass index in preparturient dairy cows: implications for insulin resistance

An economic analysis of the municipal demand for water in Kuwait

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