Index Catalog // ScholarsArchive@OSU

Marking, movement, and management of Drosophila suzukii in Oregon berry crops

Creator:: Klick, Jimmy
Abstract:: Drosophila suzukii Matsumura (Diptera: Drosophilidae) are small invasive flies that in the past five years (2009-2014) invaded berry and stone fruit production regions in Europe and the Americas. Evolutionary adaptations, biological traits, and anthropogenic factors have contributed to its current status as a global pest. Females oviposit eggs into ripe...
Resource Type:: Dissertation
Full Text:: J. Bruck Drosophila suzukii Matsumura (Diptera: Drosophilidae) are small invasive flies

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

Creator:: Dreves, Amy J.
Abstract:: In Oregon’s northern Willamette Valley, cabbage maggot (CM), Delia radicum (L.) (Diptera: Anthomyiidae) often renders Brassica root crops unmarketable. Scheduled insecticides are the only current control. Studies were conducted to: 1) describe and characterize spring emergence of CM flies and their seasonal flight activity relative to degree-day (DD) accumulations; 2)...
Resource Type:: Dissertation
Full Text:: am particularly grateful to Professors Denny Bruck, Paul Jepson, Tim Righetti, and Marcos Kogan for

Biotic barriers to colonizing new hosts by the cinnabar moth Tyria jacobaeae (L.)(Lepidoptera: Arctiidae)

Creator:: Karacetin, Evrim
Abstract:: The cinnabar moth (Tyria jacobaeae (L.), Lepidoptera: Arctiidae) is an icon in population ecology and biological control that has recently lost its shine based on evidence that (1) it is less effective than alternatives (such as the ragwort flea beetle Longitarsus jacobaeae (Waterhouse) (Coleoptera: Chrysomelidae) for controlling ragwort Senecio jacobaea...
Resource Type:: Dissertation
Full Text:: about the larvae, not about my work!). I got contacted Denny Bruck, and he identified the disease that

Vibrational relaxation time studies on carbon monoxide by the infrared spectrophone method

Creator:: Jones, Walter Denny
Resource Type:: Dissertation
Full Text:: INFFCARED SPECTROPHON iT{OD by WALTER DENNY JON F8 TifSIS submitted to ORE8ON STATE COLLEGE ir

Who Benefits from Development Aid? Exploring Agroforestry Technology Adoption, Food Security, and Path Dependence in Rural Tanzania

Creator:: Bruck, Sonia R.
Abstract:: Rural farmers in Tanzania depend on subsistence agriculture for their livelihood. Poor soil conditions, and the danger of drought, increases the risk of cyclical poverty conditions. Aid organizations, including the World Agroforestry Centre (ICRAF) and the Millennium Development Projects (MDP), as well as industrial tobacco industry, have provided development programs...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Sonia R. Bruck for the degree of Doctor of Philosophy in Forest Ecosystems and Society

The effects of biomechanical and ecological factors on population and community structure of wave-exposed, intertidal macroalgae

Creator:: Blanchette, Carol A.
Abstract:: I examined the biomechanical factors that influence the sizes of intertidal macroalgae by studying a population of Fucus gardneri at Fogarty Creek Point, OR. I constructed a mathematical model to predict optimal sizes and probabilities of survival for Fucus under conditions of high and low wave exposure. Predicted optimal sizes...
Resource Type:: Dissertation
Full Text:: grateful to all the members of my graduate committee: Mark Denny, Doug Derryberry, Stan Gregory and Mark

Agriculture teachers' work and family domain characteristics, work-family conflict, and turnover intentions : a national study

Creator:: Sorensen, Tyson J.
Abstract:: The purpose of this study was to describe and explore the relationships between work and family domain characteristics, time-based work-family conflict (WFC), and turnover intention of agriculture teachers. This study sought to identify factors influencing agriculture teachers' turnover intentions. An additional focus of this study was to explore differences between...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Tyson J. Sorensen for the degree of Doctor of Philosophy in Science Education presented

A predictive model for identifying the highly anxious freshman

Creator:: Jerome, Jerry Blair
Resource Type:: Dissertation
Full Text:: Identifying the Highly Anxious Freshman Abstract approved: Redacted for privacy /r. Jo Ann4/J. Trow The

High performance liquid chromatography of the staphylococcal enterotoxins

Creator:: Williams, Robert Roy
Abstract:: Many methods in use today for the isolation, purification, and identification of the staphylococcal enterotoxins involve lengthy steps with significant loss of enterotoxin, are subject to interference from contaminating sample components, and lack sufficient specificity. Culture extracts of enterotoxin producing Staphylococcus aureus strains (enterotoxins A-E), crude enterotoxin preparations (enterotoxins A-E),...
Resource Type:: Dissertation
Full Text:: the Staphylococcal Enterotoxins Abstract approved: Redacted for Privacy Tho(nlas J. Rogers Many

Relationship between moral development and personality type of University undergraduates

Creator:: McMahon, Timothy R.
Abstract:: The purpose of this study was to investigate the relationship between moral development and year in school, gender, and personality type for university undergraduates. Moral development was measured by the Defining Issues Test (DIT) and personality was assessed using the Myers-Briggs Type Indicator (MBTI). The sample consisted of 320 freshmen,...
Resource Type:: Dissertation
Full Text:: related to the sensing (S) (p < 0.001) and judging (J) (p < 0.050) dimensions of the MBTI. The %P score

ScholarsArchive@OSU

Marking, movement, and management of Drosophila suzukii in Oregon berry crops

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

Biotic barriers to colonizing new hosts by the cinnabar moth Tyria jacobaeae (L.)(Lepidoptera: Arctiidae)

Vibrational relaxation time studies on carbon monoxide by the infrared spectrophone method

Who Benefits from Development Aid? Exploring Agroforestry Technology Adoption, Food Security, and Path Dependence in Rural Tanzania

The effects of biomechanical and ecological factors on population and community structure of wave-exposed, intertidal macroalgae

Agriculture teachers' work and family domain characteristics, work-family conflict, and turnover intentions : a national study

A predictive model for identifying the highly anxious freshman

High performance liquid chromatography of the staphylococcal enterotoxins

Relationship between moral development and personality type of University undergraduates

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