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Stand development after 20-years of growth in Douglas-fir and red alder mixtures

Creator:: Garrelts, Brennan T.
Abstract:: This study examines the long-term role of interference on stand development of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) and red alder (Alnus rubra Bong.) planted mixtures in the Central Cascades of Oregon, USA. The two species are common associates in naturally regenerated and planted conifer stands in the Pacific Northwest. Due...
Resource Type:: Masters Thesis

Host responses of English sole (Parophrys vetulus) to infection by the monogenetic trematode Gyrodactylus stellatus

Creator:: Moore, Michelle M.
Abstract:: The infection intensity of the monogenetic trematode Gyrodactyus stellatus on laboratory held English sole (Parophrys vetulus) appeared to be influenced by handling stress, substrate, and starvation. In bioassays testing G. stellatus survival times in mucus and serum collected from laboratory held sole at different times during trematode infection, trematode survival...
Resource Type:: Masters Thesis
Full Text:: cytotoxic cells (Evans et al., 1984); and nonspecific soluble factors such as lysozyme (Fletcher and White

Indirect parameter identification algorithm in radial coordinates for a porous medium

Creator:: Roley, Kenneth L.
Abstract:: The decision to bury high level nuclear wastes in deep geological formations led to the study of the Hanford Nuclear Reservation as one of three possible sites for the first nuclear waste repository in the United States. To adequately evaluate the environmental impact of siting nuclear waste repositories in basalt...
Resource Type:: Masters Thesis
Full Text:: OBJECTIVE FUNCTION 64 5.4.1 Steepest Descent Gradient Method 64 5.42 Fletcher-Reeves Gradient Method 65

Bovine luteal oxytocin synthesis and secretion in vitro : effects of phorbol ester, calcium ionophore and indomethacin

Creator:: Cosola-Smith, Carrie A.
Abstract:: Experiments were conducted to examine the effects of a tumor-promoting phorbol ester, a calcium ionophore and indomethacin on bovine luteal oxytocin (OT) synthesis and secretion and progesterone secretion. Six 18-month-old crossbred beef heifers in Exp. 1 and five similar heifers in Exp. 2 were observed twice daily for estrus using...
Resource Type:: Masters Thesis

Gonadotropin releasing hormone-induced secretion of luteinizing hormone during the milk ejection reflex in the postpartum beef cow

Creator:: Jaeger, John Ralph
Abstract:: A study was conducted to determine the effect of the milk ejection reflex on exogenous gonadotropin releasing hormone (GnRH)- induced release of luteinizing hormone (LH) after short term calf removal. Twenty-four postpartum multiparous beef cows were assigned 3 randomly to groups arranged in a 2[superscript 3] factorial design to be...
Resource Type:: Masters Thesis
Full Text:: has not yet been a major focus of research. However, Fletcher (1973) conducted a study in which

The root maggot complex (Diptera: Anthomyiidae) in cruciferous crops of the Pacific Northwest

Creator:: Forbes, Albert Ronald
Resource Type:: Masters Thesis
Full Text:: was mentioned by Fletcher in his annual reports almost every year from 1885 to 1906. Brooks (3

Comparisons of fish assemblages and habitat associations in littoral zones of reservoirs in the Willamette Basin, Oregon

Creator:: Bennett, Paul Michael
Abstract:: The littoral zones of seven reservoirs in the southern Willamette Valley of Oregon were sampled with a boat electroshocker during the summer months of 1995 and 1996. Shoreline substrates were inventoried before sampling sites were randomly selected. Sampling sites consisted of 9 of 12 possible habitat types including four substrate...
Resource Type:: Masters Thesis

Physiological and cultural conditions affecting postharvest handling of bare-root nursery plants

Creator:: Englert, John M.
Abstract:: Nursery plants are often harvested, stored, and shipped bare-root for easier and more economical handling. Some species of woody and herbaceous perennials are less tolerant of postharvest handling than others. Desiccation stress during the handling of bare-root plants has been identified as a major problem contributing to poor survival and...
Resource Type:: Masters Thesis
Full Text:: , 1939; Mahlstede and Fletcher, 1960). There are a number of physiological, biochemical, and

Toxicity of the water-soluble fraction of crude oil and partially combusted crude oil to inland silverside, Menidia beryllina

Creator:: Kristanto, Shinta W.
Resource Type:: Masters Thesis
Full Text:: and fish. Mar. Biol. 27:75-88. Black, J.A., W.J. Birge, A.G. Westerman and P.C. Francis. 1983

Inactivation Strategy for Clostridium perfringens Spores Adhered onto Stainless Steel Surfaces

Creator:: Alzubeidi, Yasmeen S.
Abstract:: Clostridium perfringens is a spore-forming pathogenic bacterium that causes a variety of diseases in human and animals. C. perfringens type A isolates produce enterotoxin (CPE) causing food poisoning (FP) and non-food-borne (NFB) gastrointestinal (GI) diseases including antibiotic-associated diarrhea and sporadic diarrhea. C. perfringens type A food poisoning currently ranks as...
Resource Type:: Masters Thesis
Full Text:: ; Fletcher, 1996; Klavenes et al., 2002; Mafu et al., 1990; Marshall et al., 1971). The microbial

ScholarsArchive@OSU

Stand development after 20-years of growth in Douglas-fir and red alder mixtures

Host responses of English sole (Parophrys vetulus) to infection by the monogenetic trematode Gyrodactylus stellatus

Indirect parameter identification algorithm in radial coordinates for a porous medium

Bovine luteal oxytocin synthesis and secretion in vitro : effects of phorbol ester, calcium ionophore and indomethacin

Gonadotropin releasing hormone-induced secretion of luteinizing hormone during the milk ejection reflex in the postpartum beef cow

The root maggot complex (Diptera: Anthomyiidae) in cruciferous crops of the Pacific Northwest

Comparisons of fish assemblages and habitat associations in littoral zones of reservoirs in the Willamette Basin, Oregon

Physiological and cultural conditions affecting postharvest handling of bare-root nursery plants

Toxicity of the water-soluble fraction of crude oil and partially combusted crude oil to inland silverside, Menidia beryllina

Inactivation Strategy for Clostridium perfringens Spores Adhered onto Stainless Steel Surfaces

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