Index Catalog // ScholarsArchive@OSU

The distribution of geologic and artifact obsidian from the Silver Lake/Sycan Marsh geochemical source group, South-Central Oregon

Creator:: Thatcher, Jennifer J.
Abstract:: Geochemical characterization methods are commonly used in the reconstruction of prehistoric raw material use and procurement systems. Trace element studies of lithic source material and artifacts, specifically those made of obsidian, can reveal important information about the environmental and cultural factors which influence the prehistoric distribution of raw material. The...
Resource Type:: Masters Thesis
Full Text:: wish to express my sincere gratitude to my committee members: Barbara Roth, Craig Skinner, and Dawn

Spatial and temporal patterns of "super-old" Douglas-fir trees of the central western Cascades, Oregon

Creator:: Giglia, Sheryl K.
Abstract:: Old-growth in the Pacific Northwest is generally defined as trees that are more than 200 years old. A great deal of analysis and discussion about old-growth forests in western Oregon, however, has focused on the relatively widespread 400 to 500 year age class of primarily Douglas-fir (Pseudotsuga menziesii) trees. The...
Resource Type:: Masters Thesis

A GIS Evaluation of Land Use Zones and Water Quality for Marine Conservation Site Selection in Lincoln County, Oregon

Creator:: Henderson, Ann Miller
Abstract:: The leasing of submerged and submersible lands is emerging as a new marine conservation method. Using a geographic information system, this study: (1) examines the suitability of estuary tideland sites for conservation leasing in Lincoln County, Oregon, and (2) explores the relationship between adjacent terrestrial land use zones and the...
Resource Type:: Capstone Project
Full Text:: graduate committee, Dawn Wright and Hamilton Smillie. I appreciate Hamilton Smillie’s committed

Exotic plant species dynamics from 1994 to 2005 on road networks in forested landscapes of western Oregon

Creator:: Sheehy, Samantha
Abstract:: Although the Pacific Northwest has the least proportion of non-native plant species in relation to other regions of North America, exotic species continue to spread into mountainous areas, including the Cascade Range. In a forested landscape, road networks can act as corridors for exotic plant dispersal and establishment, helping species...
Resource Type:: Masters Thesis
Full Text:: thank the members of my graduate committee, Dr. Dawn Wright and Dr. Becky Kerns for their

The timing and evolution of Cenozoic extensional normal faulting in the southern Tobin Range, Pershing County, Nevada

Creator:: Gonsior, Zachary J.
Abstract:: The Tobin Range of central Nevada lies in the Basin and Range extensional province near the transition between more extended terrane (>50%) to the south and east, and generally less extended terrane to the north and west. Geologic mapping, 40Ar/39Ar dating and whole-rock geochemical analysis were employed to establish the...
Resource Type:: Masters Thesis

Volcanic vulnerability : Determining the relationship between urban proximity to volcanoes and human development

Creator:: Hogue, Jennifer A.
Abstract:: Many studies have looked at human settlements around individual volcanoes for volcanic risk analyses, but few have done a comparative study to identify possible global patterns. With the use of Landsat ETM+ data, this study identifies and compares urban proximity to the Decade Volcanoes to identify volcanic settlement patterns. These...
Resource Type:: Capstone Project
Full Text:: thank my two other committee members, Dr. Anne Noun and Dr. Dawn Wright, for continually challenging me

Using Data Loss and Duplication Maps to study data use associated with nearest-neighbor resampling

Creator:: Perigny, Mathew
Abstract:: Nearest-neighbor resampling is a common procedure used by cartographers to reproject raster data sets. This type of resampling is useful because it retains the data from the original raster data set. However, during nearest-neighbor resampling some of the original data will be lost as it is reprojected, while other data...
Resource Type:: Capstone Project
Full Text:: members, Dr. Jackson, and Dr. Wright, for their support and patience during the course of my studies at

Spatial analysis of soil depth variability and pedogenesis along toposequences in the Troodos Mountains, Cyprus

Creator:: Robins, Colin R.
Abstract:: In unstable landscapes, modern pedological research explores the role of soils as products and indicators of geomorphologic change. Understanding the dynamics of hill slope pedogenesis is especially important in regions with limited, poor, or threatened soil resources. The island of Cyprus, situated in the eastern Mediterranean, is claimed by many...
Resource Type:: Masters Thesis
Full Text:: grateful to my committee members, Herb Huddleston, Jim Thomson, and Dawn Wright, for their guidance, time

Feasibility of supplementary sampling of the commercial groundfish landings in Oregon using seafood plant workers

Creator:: Builder, Tonya L.
Abstract:: Fishery dependent data--length distributions, sex ratios, maturity schedules, and species composition of landed catches--are necessary for stock assessments. These data are currently collected by state port biologists using a sampling design that randomly selects samples from a small percentage of a very large target population. Sampling programs may need to...
Resource Type:: Masters Thesis
Full Text:: advisor, helped with the formulation of this study and the analysis. Dr. Dawn J. Wright taught me all I

A recurrent neural network implementation using the graphics processing unit

Creator:: Moore, Christopher
Abstract:: We took the back-propagation algorithms of Werbos for recurrent and feed-forward neural networks and implemented them on machines with graphics processing units (GPU). The parallelism of these units gave our implementations a 10 to 100 fold increase in speed. For nets with less than 20 neurons the machine performed faster...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The distribution of geologic and artifact obsidian from the Silver Lake/Sycan Marsh geochemical source group, South-Central Oregon

Spatial and temporal patterns of "super-old" Douglas-fir trees of the central western Cascades, Oregon

A GIS Evaluation of Land Use Zones and Water Quality for Marine Conservation Site Selection in Lincoln County, Oregon

Exotic plant species dynamics from 1994 to 2005 on road networks in forested landscapes of western Oregon

The timing and evolution of Cenozoic extensional normal faulting in the southern Tobin Range, Pershing County, Nevada

Volcanic vulnerability : Determining the relationship between urban proximity to volcanoes and human development

Using Data Loss and Duplication Maps to study data use associated with nearest-neighbor resampling

Spatial analysis of soil depth variability and pedogenesis along toposequences in the Troodos Mountains, Cyprus

Feasibility of supplementary sampling of the commercial groundfish landings in Oregon using seafood plant workers

A recurrent neural network implementation using the graphics processing unit

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