1980-1999 - CSU Theses and Dissertations
Recent Submissions
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Integrated pest management of tomato/potato psyllid, Paratrioza cockerelli (SULC) (Homoptera: Psyllidae) with emphasis on its importance in greenhouse grown tomatoes
The tomato (potato) psyllid, Paratrioza cockerelli (Sulc), has developed into a key insect pest of greenhouse tomatoes of western North America and few options have been available for its management. A series of trials ... -
Investigations into the nature of the potato psyllid toxin
The potato or tomato psyllid, Paratrioza cockerelli (Sulc) (Homoptera: Psyllidae) is a pest of many solanaceous crops in the western U.S. and causes a disease in potatoes and tomatoes known as "psyllid yellows". The disease ... -
Geology, hydrothermal alteration, paragenetic sequence and fluid inclusion analysis of La Maruja level, Marmato district, Caldas Department, Colombia
The Marmato goldfield is located in the Department of Caldas in the western Cordillera of Colombia. The area is topographically characterized by steep hills of abrupt relief. Rocks that range in age from the Cretaceous to ... -
Spin dynamics in solids
The work described in this thesis falls into two largely unrelated categories. Part I of the thesis reports unusually fast 13C spin diffusion in adamantane. A calculation of the 13C spin-diffusion rate from first order ... -
Aromatic circular dichroism in globular proteins: applications to protein structure and folding
The exciton couplet approach was applied to estimate the circular dichroism (CD) of Trp side-chains in proteins. Calculations were performed by the origin-independent version of the matrix method, either for the indole Bb ... -
Three-dimensional finite element model to predict pole strength
A three-dimensional finite element model was used to predict the strength and location of failure of nine wood transmission poles. The poles were made from three commonly used species (western red cedar, Douglas-fir and ... -
Current distribution and particle motion in a barbed plate electrostatic precipitator
Electrohydrodynamic theory suggests that a modification in electrode geometry is a method of creating more favorable electrical and flow conditions in electrostatic precipitators. A novel barbed plate precipitator is ... -
Electrohydrodynamic flow in a barbed plate electrostatic precipitator
The large scale secondary flows and turbulence induced by the inhomogeneous negative corona discharge in the conventional wire-plate precipitator are known to reduce collection efficiencies, particularly in applications ... -
Legibility of serif and sans serif type faces in computer displays
Studies of type faces printed on paper have generally found minimal legibility differences between the many type faces. Modem computers are capable of displaying many of the same type faces available to printers, but few ... -
Biological and physiological effects of excess copper in juvenile mallards Anas platyrhynchos: an investigation of the toxicity of acid mine drainage in waterfowl, The
In the early 1990's, concentrations of copper in the Alamosa River were increased by the release of acid mine drainage from the Summitville Mine site. Concern about the potential impact to resident waterfowl led to an ... -
Paleohydrologic investigation in the vicinity of Harpers Ferry, West Virginia, A
A paleohydrologic investigation of the Shenandoah River in the vicinity of Harpers Ferry, West Virginia, was conducted in response to the recent periodic floods that devastate the community. The study reach was approximately ... -
Effect of tillage on soil physical properties and crop production
The objective of this study was to determine the effect of two tillage systems -- conventional tillage (CT) and reduced tillage (RT) -- for a three-year corn-corn-watermelon rotation on: 1) biological production of corn ... -
Physiological responses of grapevines to environmental stresses
The field response of several grapevine (Vitis vinifera L) cultivars, grown at the Orchard Mesa Research Center, to methanol application on foliage and trunks was investigated. Sublethal methanol doses were determined as ... -
Vertical sorting within dune structure
Vertical sorting of sediment mixtures within dune structures was measured experimentally by conducting three types of experiments: running water experiments, still water experiments, and air experiments. Five different ... -
Resistance components and velocity distributions of open channel flows over bedforms
The components of flow resistance and the velocity distributions of open-channel flows over bedforms were investigated by conducting idealized bedform experiments in a laboratory flume. Experiments involving uniform smooth, ... -
Factors influencing the effectiveness of a family intervention for adolescent versus adult mothers
A family intervention program entitled DARE To Be You was found to be equally effective for both adolescent and adult mothers, but the factors that predicted program effectiveness differed for the two groups. Adolescent ... -
Graduate education, research, and the interior design profession
Irrespective of the field, all professions are made up of different components that set a standard for the discipline. These components include, but are not limited to, accreditation, examination, licensing, and research. ... -
Flood frequency derivation technique based on kinematic wave approach, A
The present study deals with the derivation of a methodology to obtain a flood frequency distribution, for small ungaged watersheds, where the overland flow phase is considered to be an important timing component. In the ... -
Disaggregation of precipitation records
This investigation is related to temporal disaggregation of precipitation records. The objective is to formulate algorithms to disaggregate precipitation defined at a given time scale into precipitation of smaller time ... -
Llama use on public lands
Interest in utilizing llamas as packstock is affecting natural resource managers as requests to use llamas on federally-owned lands increases. To adopt effective management practices related to issues raised by this ...
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