Index Catalog // ScholarsArchive@OSU

Biology of the two external Acarapis species of honey bees : Acarapis dorsalis Morgenthaler and Acarapis externus Morgenthaler (Acari: Tarsonemidae)

Creator:: Ibay, Lilia Armendez
Abstract:: The biology of the two external Acarapis mites of honey bees, Acarapis dorsalis Morgenthaler and Acarapis externus Morgenthaler was studied. It was observed that both Acarapis species have similar developmental period (8-9 days) with males emerging earlier than females. Mite load and infestation rate of A. dorsalis decreased as bees...
Resource Type:: Masters Thesis
Full Text:: privacy Ur. Dennis Michael Burgett The biology of the two external Acarapis mites of honey bees

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

Creator:: Talkington, Michael Lee
Abstract:: Studies were conducted in the Willamette Valley of western Oregon to evaluate the effects of plowing (7.5-15 cm deep) and disking (5-10 cm deep) in peppermint, Mentha piperita L., on the following factors: 1) emergence of adult "mint root borer", Fumibotys fumalis Guenée; 2) suppression of common groundsel, Senecio vulgaris...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Michael Lee Ta/kington for the degree of Master of Science in Entomology presented on May 27

The effect of photoperiod and temperature on ovarian development and fat production in Culex peus Speiser (Diptera:Culicidae)

Creator:: Skultab, Seeviga
Abstract:: The effect of photoperiod and temperature on ovarian follicle development and fat production was studied in a colonized population of CuZex peus Speiser from Philomath, Oregon. Females were subjected to simulated fall conditions of photoperiod and temperature. Under a combination of short photoperiod and low temperature, there were various effects...
Resource Type:: Masters Thesis
Full Text:: wish to thank Dr. Rod Frakes, Dr. Jo-Ann Leong and Dr. Michael Burgett for serving on my committee. I

First-year response of Douglas-fir after release from snowbrush ceanothus

Creator:: Petersen, Terry D.
Abstract:: The release of Douglas-fir from competition with snowbrush (Ceanothus velutinus Dougl.) has often been suggested as a way to improve conifer yield in the western Cascades. This study investigated this possibility by describing changes in the availability of water and light and the response of Douglas-fir to the changing environment,...
Resource Type:: Masters Thesis

SIDUR--a formalism for structuring knowledge bases

Creator:: Kogan, Dan D.
Abstract:: A new class of information intensive applications is emerging [Fuch82; Ohsu82] for which neither Artificial Intelligence (AI) nor Database technologies alone are well suited. Database systems do not provide the general inferential capabilities required for problem solving, while AI techniques have not been adapted to handle massive amounts of structured...
Resource Type:: Masters Thesis
Full Text:: . Redacted for Privacy Michael i".1"reiling A new class of information intensive applications is emerging

Oregon farm models : a spreadsheet approach

Creator:: Chambers, William D
Resource Type:: Masters Thesis
Full Text:: : Oregon Farm Models: A Spreadsheet Approach Michael V. Martin The analysis of participation decisions in

Acceleration of a heuristic PLA product term reduction program through complementation of the PLA specification

Creator:: Gilbert, John D.
Abstract:: Minimizing the number of product terms in a PLA implementation is a large step towards saving area on a VLSI chip using PLA logic. Due to the large amounts of computer time necessary to achieve this minimization, a number of heuristic approaches have been developed to provide near-optimal solutions in...
Resource Type:: Masters Thesis
Full Text:: program through complementation of the PLA specification AN ABSTRACT OF THE THESIS OF John D. Gilbert

The effect of alpha phase morphology on the impact energy of commercial purity titanium

Creator:: York, James Michael
Abstract:: Samples of commercial purity titanium were heat treated above the beta transformation temperature and within the two phase alpha-beta phase field, followed by cooling at varying rates. Testing of the samples in tension and by instrumented impact indicated that some strengthening could be imparted by these heat treatments, although at...
Resource Type:: Masters Thesis
Full Text:: of Commercial Purity Titanium AN ABSTRACT OF THE THESIS OF James Michael York for the degree of

Nitrogen fertilizer rate and application timing effects on growth and seed-oil yield of meadowfoam

Creator:: McGahuey, Michael L.
Abstract:: Meadowfoam has been identified as a potential oilseed crop for production on poorly drained soils in areas with cool, moist winters. The effects of N fertilizer on meadowfoam (Limnanthes alba Benth.) have been studied in Oregon and Maryland, but the results have not been consistent with respect to the effects...
Resource Type:: Masters Thesis
Full Text:: on growth and seed-oil yield of meadowfoam AN ABSTRACT OF THE THESIS OF Michael L. McGahuey for

A revision of the black grass bug genus Irbisia Reuter (Heteroptera:Miridae)

Creator:: Schwartz, Michael David
Abstract:: The black grass bug genus Irbisia Reuter was revised. Over 18,000 specimens were examined and information concerning the biology, host plant and distributional relationships of the species was compiled. In addition to external characters, the male claspers and vesica, and the female dorsal libiate plate of the bursa copulatrix and...
Resource Type:: Masters Thesis
Full Text:: (Heteroptera:Miridae) AN ABSTRACT OF THE THESIS OF MICHAEL DAVID SCHWARTZ for the degree of MASTER OF SCIENCE in

ScholarsArchive@OSU

Biology of the two external Acarapis species of honey bees : Acarapis dorsalis Morgenthaler and Acarapis externus Morgenthaler (Acari: Tarsonemidae)

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

The effect of photoperiod and temperature on ovarian development and fat production in Culex peus Speiser (Diptera:Culicidae)

First-year response of Douglas-fir after release from snowbrush ceanothus

SIDUR--a formalism for structuring knowledge bases

Oregon farm models : a spreadsheet approach

Acceleration of a heuristic PLA product term reduction program through complementation of the PLA specification

The effect of alpha phase morphology on the impact energy of commercial purity titanium

Nitrogen fertilizer rate and application timing effects on growth and seed-oil yield of meadowfoam

A revision of the black grass bug genus Irbisia Reuter (Heteroptera:Miridae)

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