Index Catalog // ScholarsArchive@OSU

Aspects of the foraging ecology of humpback whales (Megaptera novaeangliae) in Frederick Sound and Stephens Passage, Southeast Alaska

Creator:: Szabo, Andrew R.
Abstract:: The North Pacific humpback whale (Megaptera novaeangliae) population has been increasing at an average annual rate of ~6% since the early 1990s. In northern Southeast Alaska alone, there are now more whales than estimated for the entire North Pacific several decades ago. An understanding of how this growing population is...
Resource Type:: Dissertation
Full Text:: : Aspects of the foraging Ecology of Humpback Whales (Megaptera novaeangliae) in Frederick Sound and

Possible Autocrine/Paracrine Action of Progesterone in the Ovine Corpus Luteum

Creator:: Smallman, Mary A.
Abstract:: The objective of the present research was to determine, by use of the progesterone receptor antagonist RU-486, whether progesterone by autocrine/paracrine action suppresses phosphatidylinositol hydrolysis, and thus, the production of prostaglandin F2a during the midluteal phase of the estrous cycle in ewes. Two experiments were performed. Experiment 1 consisted of...
Resource Type:: Masters Thesis

In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies

Creator:: Freitas, Shawn Robert
Abstract:: As the forest industry moves toward the use of younger trees and production of an increasing number of composite products improving durability has gained importance. Coatings are one of the most widely used methods for improving wood durability because they improve resistance to water penetration, and subsequent shrinking and swelling,...
Resource Type:: Dissertation
Full Text:: . Abstract approved: ______________________________________________________ Frederick A. Kamke As the

Nongenomic Actions of Steroid Hormones in the Ovine Endometrium

Creator:: Ireton, Kyle E.
Abstract:: The steroid hormone estrogen plays a crucial role in regulating certain mammalian tissues, especially female reproductive systems. Estrogen effects physiological changes in the cell by altering transcription activity for certain target genes, as a consequence of interactions between estradiol-17β (E2) and its nuclear receptor (nER). This mechanism of cellular control...
Resource Type:: Honors College Thesis
Full Text:: nongenomic actions in domestic animals. J Anim Sci 86: 299 – 315. Tao, Y. J., Zheng, W. (2011

Chemical modification of wood : dimensional stabilization of viscoelastic thermal compressed wood

Creator:: Gabrielli, Christopher P.
Abstract:: The tendency of wood to shrink and swell with changing moisture content remains as one of the most significant challenges to using wood in its many applications. Viscoelastic Thermal Compression (VTC) has been shown to significantly increase the density, strength and stiffness of wood. However, dimensional stability is still a...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Frederick A. Kamke The tendency of wood to shrink and swell with changing moisture

Effects of caustic addition on black liquor rheology and thermal characteristics

Creator:: Euhus, Daniel D.
Abstract:: An important by-product of the kraft pulping process, black liquor is currently used in most pulp mills to produce steam in a recovery boiler. Two important black liquor characteristics are viscosity and burning (firing) characteristics, which determine the operating efficiency of the recovery boiler. Kraft black liquor is a complicated...
Resource Type:: Honors College Thesis
Full Text:: numerous investigators and in Chapter 3 of Kraft Recovery Boilers (Frederick, 1997). The rheology of

Characterizing drivers of microbial community structure and function in diverse marine sediments

Creator:: Graw, Michael F.
Abstract:: Marine sediments are one of the largest habitats for microbial life on earth. These microorganisms play critical roles in biogeochemical cycling both within the subsurface and between the sediment and water columns. However, microbial communities in sediments are highly heterogeneous and the factors defining microbial community structure and metabolic function...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Frederick S. Colwell Marine sediments are one of the largest habitats for microbial

Morphodynamic Evolution of Coastal Oregon: Using New Lidar-derived Beach and Sand Dune Morphometrics to Explore Multi-decadal Change

Creator:: Light, Jacob W
Abstract:: The coast of Oregon is highly dynamic, with beach and dune morphodynamics constantly evolving in response to physical and ecological forcing at scales ranging from seconds to decades and meters to tens of kilometers. Evaluating spatial and temporal trends in shoreline evolution is paramount in understanding and eventually developing a...
Resource Type:: Masters Thesis

Primary production dynamics in the North Pacific subtropical gyre

Creator:: Corno, Guido
Abstract:: The North Pacific subtropical gyre (NPSG), once considered to be a biological desert due to low primary production (PP) and its associated variability, has been found more productive and variable than previously thought. The environmental conditions controlling this relatively high PP variability are yet to be elucidated, despite important implications...
Resource Type:: Dissertation
Full Text:: 158º 00' W), as part of the on-going Hawaii Ocean Time-Series (HOT) program, were used to address

Comparing Sediment Microbial Communities of Arctic Beaver Ponds to Tundra Lakes and Streams

Creator:: Shannon, Kelly
Abstract:: In recent decades the habitat of North American beaver (Castor canadensis) has expanded from boreal forests into pan-Arctic tundra ecosystems. It is unknown how the advance of beavers into Arctic watersheds will impact microbial communities responsible for the mineralization of organic matter (OM), which has implications for carbon cycling. To...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Frederick Colwell In

ScholarsArchive@OSU

Aspects of the foraging ecology of humpback whales (Megaptera novaeangliae) in Frederick Sound and Stephens Passage, Southeast Alaska

Possible Autocrine/Paracrine Action of Progesterone in the Ovine Corpus Luteum

In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies

Nongenomic Actions of Steroid Hormones in the Ovine Endometrium

Chemical modification of wood : dimensional stabilization of viscoelastic thermal compressed wood

Effects of caustic addition on black liquor rheology and thermal characteristics

Characterizing drivers of microbial community structure and function in diverse marine sediments

Morphodynamic Evolution of Coastal Oregon: Using New Lidar-derived Beach and Sand Dune Morphometrics to Explore Multi-decadal Change

Primary production dynamics in the North Pacific subtropical gyre

Comparing Sediment Microbial Communities of Arctic Beaver Ponds to Tundra Lakes and Streams

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