Most plant toxicology tests developed in support of environmental laws use a single stress applied to an individual plant. While tests using individual species or stresses require fewer resources and are easier to interpret, they are under increasing criticism for being unrealistic and missing important ecological interactions. The objective of...
Bayesian optimization (BO) aims to optimize costly-to-evaluate functions by running a limited number of experiments that each evaluates the function at a selected input. Typical BO formulations assume that experiments are selected sequentially, or in fixed batches. Moreover, these experiments can be executed immediately upon request and have the same...
The prevalence of childhood illness requiring hospitalization establishes the need for implementation of an applied intervention to decrease levels of hospitalization-induced anxiety in pediatric patients. In addition to anxiety, levels of perceived trauma have also been linked to pre-operative pediatric patients. Child-Centered Play Therapy (CCPT) within the medical setting has...
Traffic exhaust is an important source of air pollution. This exposure assessment study examined traffic related air pollution in Curitiba, Brazil, and is particularly relevant due to 75% of the population using diesel public transportation. Traffic density was tabulated, and vehicle-type was distinguished based on their fuel type (diesel or...
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Laurence Becker, Committee Member, representing College of Earth, Ocean, and Atmospheric Science
Market lamb production usually requires a short period of time. The success of production is therefore dependent upon the growth rate of the lambs which is influenced by milk yields of the ewes. Different growth potentials of animals result from a difference in their utilisation of food. Since metabolism affects...
This thesis presents an economic comparison of three different
highway networks which serve an area of 64 miles by 83 miles in size.
Each network is designed to carry the same traffic between any two
towns but is different in total length.
Costs of right of way, excavation, pavement and...
This is a listing of both PhD and Master's· theses relating to the areas of forestry issued during the period from July 1976 to June 1981. The
list is arranged first by state, then by college or university within each state. Authors of theses are arranged alphabetically under each of...
Many of Earth’s terrestrial large carnivore species are threatened with extinction. As a result, some of the ecological effects associated with these species may be lost. With the goal of furthering large carnivore conservation research, I conduct three global scale analyses involving these species. First, I explore prey depletion as...
The purpose of this study was: 1. To determine the percent of the total income spent by each of the five cooperative
houses at Oregon State College for food, heat, light, and
water; repairs and replacements; salaries; laundry; miscellaneous
expense; rent; and amortization of the loan and purchase
of equipment....