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The T-S gradient method, a new method of computing geostrophic currents over large ocean areas

Creator:: Denner, Warren Wilson
Resource Type:: Dissertation
Full Text:: Pattullo, Dr. Wayne Burt, and Dr. Stephen Neshyba - - Dr. Pattullo, whose inspiration and encouragement

Antimony-124 in the lower Columbia River

Creator:: Pope, Stephen Van Wyck
Resource Type:: Masters Thesis
Full Text:: each radionuclide in Figures 4a 6 4 50( 40( 30C 20( OC PC /L IC C 2C o6 ijsFc I0 a 6

The immunological response of sheep to irradiated and non-irradiated infectious larvae of Haemonchus contortus (Rudolphi 1803) Cobb, 1898

Creator:: Stevens, James Orval
Abstract:: Ten helminth-free sheep were given two doses of 10,000, X-irradiated, H. contortus, third stage larvae 30 days apart. These animals and a group of ten non-vaccinated sheep were challenged with 50,000, normal, H. contortus, third stage larvae 60 days following the second vaccination. Antibody levels were measured in both groups...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Dr.7 K. Stepheñ filcher Ten helminth -free sheep were given two doses of 10, 000

Studies on Heterostylum robustum (Osten Sacken) (Diptera : Bombyliidae), a parasite of Nomia melanderi

Creator:: Eppley, Richard Keith
Abstract:: Heterostylum robustum (Osten Sacken) is the principal parasite of the alkali bee, Nomia melanderi Ckll., one of the most efficient pollinators of alfalfa in the western United States. The purpose of the study was to determine the incidence of parasitism and to investigate the biology of H. robustum. The fly...
Resource Type:: Masters Thesis
Full Text:: preparation of this thesis: To my major professor, Dr. W. P. Stephen, for guidance, ad- vice, and

Nitrogen 15 studies with nonleguminous nitrogen-fixing plants

Creator:: Webster, Stephen Russell
Abstract:: Snowbrush (Ceanothus velutinus), red alder (Alnus rubra), and bitterbrush (Purshia tridentata) are three important nitrogen- fixing nonleguminous species. They commonly grow in association with commercially important conifers in western United States and conceivably could be utilized to add nitrogen to forest ecosystems. Nitrogen 15 gas was used to study nitrogen...
Resource Type:: Masters Thesis
Full Text:: plants AN ABSTRACT OF THE THESIS OF Stephen Russell Webster (Name of student) in Soils for the M

The ultraviolet photobiology of marine phytoplankton

Creator:: Ward, James Stephen
Resource Type:: Masters Thesis

Circadian rhythms in Megachile rotundata (Fabricius) and Nomia melanderi Cockerell

Creator:: Tweedy, David Graham
Abstract:: The purpose of the study was to determine an emergence rhythm, its period, and the developmental stages susceptible to emergence synchronization in the leafcutter bee Megachile rotundata (Fabricius). An attempt was made to determine if an oxygen consumption rhythm was present in the pupal and adult stages of the alkali...
Resource Type:: Masters Thesis
Full Text:: ). Stephen (1965b) found that prepupae and pupae held at alternating temperatures (29- 1 7°C, 3 2 -1 7°C

Circadian rhythms in Megachile rotundata (Fabricius)

Creator:: Tweedy, David Graham
Abstract:: The rhythms of emergence, oxygen consumption, and activity were studied in Megachile rotundata with the object of comparing the results to the major properties of the biological clock such as temperature independence, susceptibility to light synchronization, and entrainment. A further objective was to compare the three rhythms to determine if...
Resource Type:: Dissertation
Full Text:: Privacy W. P. Stephen The rhythms of emergence, oxygen consumption, and activity were studied in

Foraging and nesting behavior of the leaf-cutter bee Megachile rotundata (Fabricius)

Creator:: Osgood, Charles Edgar
Abstract:: The study provides the details of the ethology of Megachile rotundata (Fabricius), and presents preliminary observations on its foraging and nesting behavior. Development from prepupae to adults proceeds most rapidly at 32 degrees C., and is retarded when held at lower and higher temperatures. Male behavior is distinct from that...
Resource Type:: Masters Thesis
Full Text:: proceeds most rapidly at 32 degrees C. , and is retarded when held at lower and higher temperatures

The effect of sublethal doses of dieldrin, parathion, and sevin on the calling song of Acheta domesticus L. (Orthoptera: Gryllidae)

Creator:: Young, Conny Lee
Abstract:: The objectives of this study were: a) to obtain and evaluate equipment for bio-acoustical analysis for this work and for future work in the analysis of insect sounds, b) to study the acoustical and sexual behavior of Acheta domesticus L., and c) to determine methods for analyzing the changes effected...
Resource Type:: Masters Thesis
Full Text:: behavior of Acheta domesticus L. , and c) to determine methods for analyzing the changes effected by

ScholarsArchive@OSU

The T-S gradient method, a new method of computing geostrophic currents over large ocean areas

Antimony-124 in the lower Columbia River

The immunological response of sheep to irradiated and non-irradiated infectious larvae of Haemonchus contortus (Rudolphi 1803) Cobb, 1898

Studies on Heterostylum robustum (Osten Sacken) (Diptera : Bombyliidae), a parasite of Nomia melanderi

Nitrogen 15 studies with nonleguminous nitrogen-fixing plants

The ultraviolet photobiology of marine phytoplankton

Circadian rhythms in Megachile rotundata (Fabricius) and Nomia melanderi Cockerell

Circadian rhythms in Megachile rotundata (Fabricius)

Foraging and nesting behavior of the leaf-cutter bee Megachile rotundata (Fabricius)

The effect of sublethal doses of dieldrin, parathion, and sevin on the calling song of Acheta domesticus L. (Orthoptera: Gryllidae)

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