Index Catalog // ScholarsArchive@OSU

Physiological effects of non-nutritive sugars on the survivorship and fecundity of Drosophila suzukii (Diptera: Drosophilidae)

Creator:: Tang, Siew Bee
Abstract:: Spotted wing drosophila (SWD), Drosophila suzukii, is an economically damaging pest on small fruits. The estimated economic impact is hundreds of millions of dollars annually in the U.S. alone, and increasing every year. Current control of SWD relies heavily on chemical insecticides which have many negative impacts on environmental and...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Siew Bee Tang for the

One methodology for the incorporation of entomological material in the discipline of historic archaeology using the honey bee (Apis mellifera L.) as a test subject

Creator:: Kellar, Brenda M.
Abstract:: Using the honey bee (Apis mellifera L.) this thesis shows that entomological information and material can be retrieved using current historical archaeological methods. Historical archaeology has the ability to uncover connections between arenas as varied, and seemingly isolated, as the honey bee, the environment, and human cultures. By focusing on...
Resource Type:: Masters Thesis
Full Text:: Incorporation of Entomological Material in the Discipline of Historic Archaeology Using the Honey Bee (Apis

Natural enemies of native bumble bees (Hymenoptera: Apidae) in western Oregon

Creator:: Maxfield-Taylor, Sarah A.
Abstract:: Bumble bees (Hymenoptera: Apidae) are important native pollinators in wild and agricultural systems, and are one of the few groups of native bees commercially bred for use in the pollination of a range of crops. In recent years, declines in bumble bees have been reported globally. One factor implicated in...
Resource Type:: Masters Thesis
Full Text:: these declines, believed to affect bumble bee colonies in the wild and during rearing, is natural

Effect of livestock grazing on native bees in a Pacific Northwest bunchgrass prairie

Creator:: Kimoto, Chiho
Abstract:: Native bees play an important role as pollinators of natural vegetation and agricultural crops. Yet many pollinators, including some native bees, are declining in numbers. Some of the potential causes of these declines are habitat destruction and degradation by various human land uses, including urban development and sprawl, construction of...
Resource Type:: Masters Thesis
Full Text:: to determine how a gradient of livestock grazing intensities impacts native bee communities in a

Evolutionary relationships and an investigation of sympatric speciation within Limnanthaceae

Creator:: Meyers, Stephen C.
Abstract:: Limnanthes floccosa ssp. floccosa and L. floccosa ssp. grandiflora are two of five subspecies of Limnanthes floccosa endemic to vernal pools in southern Oregon and northern California. Three seasons of monitoring natural populations have quantified that L. floccosa ssp. grandiflora is always found growing sympatrically with L. floccosa ssp. floccosa...
Resource Type:: Dissertation
Full Text:: present, only bee- pollinated L. alba cultivars are grown because the seed yield and seed oil

Characterization of organic light-emitting devices

Creator:: Norris, Benjamin J.
Abstract:: In this thesis steady-state (i.e. steady-state with respect to the applied voltage waveform) transient current-transient voltage [i(t)-v(t)], transient brightness-transient current [b(t)-i(t)], transient brightness-transient voltage [b(t)-v(t)], transient current [i(t)], transient brightness [b(t)], and detrapped charge analysis are introduced as novel organic light emitting device (OLED) characterization methods. These analysis methods involve...
Resource Type:: Masters Thesis
Full Text:: helpful discussions and Ching Tang and Yang Yang for providing OLEDs. This work was supported by the

Aseismic performance of a cable-stayed structure with decentralized H[infinity] control

Creator:: Chńg, Guan B.
Abstract:: The dissertation uses state-of-the-art structural engineering theories, in parallel with the modern and still-developing control theory of electrical engineering to mitigate the vibratory responses of a double-stayed bridge subjected to strong earthquake ground motions. First, a nonlinear finite element model of the double-stayed bridge subjected to non-uniform (multi-support) earthquake excitations...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Guan Bee Ch'ng for the degree of

Heat and acid induced autolytic digestion of Pacific hake (Merluccius productus)

Creator:: Timmerman, Conrad Dietrich
Abstract:: The optimum conditions for the proteolytic solubilization of trash fish and processing carcass waste in a simple shell-in-tube heat exchange system was investigated. The nutritional and chemical effects of processing variables were evaluated. An exogenous source of proteolytic enzymes (albacore tuna viscera, Thunnus alalunga) yielded a linear increase in the...
Resource Type:: Masters Thesis
Full Text:: rather 12 broad in nature (Tang, 1963), the specific activity varies depending upon the

Effect of iron on biological control of fire blight by Pseudomonas fluorescens A506

Creator:: Temple, Todd N.
Abstract:: Competitive exclusion has been the mechanism hypothesized to account for the biological control of fire blight disease of pear and apple by the bacterium Pseudomonas fluorescens A506 (A506). Recent laboratory assays demonstrated, however, that A506 produces an antibiotic that is toxic to the fire blight pathogen, Erwinia amylovora, when cultured...
Resource Type:: Masters Thesis

Influence of genetic factors and pollination on fruit firmness in parthenocarpic and nonparthenocarpic pickling cucumbers

Creator:: Cook, Kevin L., 1967-
Abstract:: A concern which has restricted the use of parthenocarpic pickling cucumbers in the United States has been firmness of fruit processed by brining. Fruit firmness and defects of parthenocarpic and nonparthenocarpic pickling cucumbers were evaluated in 1992 and 1993. Fruits were produced with or without pollination by growing plants with...
Resource Type:: Dissertation
Full Text:: to bees and honey bee hives are commonly placed near nonparthenocaipic pickling cucumber fields to

ScholarsArchive@OSU

Physiological effects of non-nutritive sugars on the survivorship and fecundity of Drosophila suzukii (Diptera: Drosophilidae)

One methodology for the incorporation of entomological material in the discipline of historic archaeology using the honey bee (Apis mellifera L.) as a test subject

Natural enemies of native bumble bees (Hymenoptera: Apidae) in western Oregon

Effect of livestock grazing on native bees in a Pacific Northwest bunchgrass prairie

Evolutionary relationships and an investigation of sympatric speciation within Limnanthaceae

Characterization of organic light-emitting devices

Aseismic performance of a cable-stayed structure with decentralized H[infinity] control

Heat and acid induced autolytic digestion of Pacific hake (Merluccius productus)

Effect of iron on biological control of fire blight by Pseudomonas fluorescens A506

Influence of genetic factors and pollination on fruit firmness in parthenocarpic and nonparthenocarpic pickling cucumbers

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