Index Catalog // ScholarsArchive@OSU

Longshore grain sorting and beach-placer formation adjacent to the Columbia River

Creator:: Li, Zhenlin
Abstract:: The formation of beach placers primarily involves processes of waves and currents that selectively sort and concentrate the valuable minerals according to their densities, sizes and shapes. Black sand placers are found on the beaches adjacent to the mouth of the Columbia River. Reviews of historical shoreline changes show that...
Resource Type:: Dissertation

Geochemical tracers of Arctic river waters

Creator:: Guay, Christopher K. H.
Resource Type:: Dissertation
Full Text:: organic carbon (DOC) in the Arctic Ocean was achieved by means of a high-resolution, in situ UV

Modeling sediment transport, channel morphology and gravel mining in river bends

Creator:: Nam, Ilgi
Abstract:: A technique is developed and tested to analyze the interaction of flowing water, bed topography, and bedload sediment transport in meandering channels where gravel bars are removed. The method relates the local velocity distribution, bed shear stress and sediment transport conditions to the local bed configuration in river bends before...
Resource Type:: Dissertation
Full Text:: the members of my graduate committee, Professors David A. Bella, Jonathan D. Istok, Robert E. Wilson

Isozymic and cytological studies on populations of the introduced bee species, Megachile (Eutricharaea) rotundata and M. (Eutricharaea) apicalis

Creator:: Chen, Xiaoshe
Abstract:: Thirteen New World populations of Megachile rotundata and M. apicalis and two Old World populations of M. rotundata were analyzed at 23 enzyme loci using cellulose acetate electrophoresis. Conventional and G- or C-banded karyotypes were also examined in these populations. The principal findings are (1) No differences were found in...
Resource Type:: Dissertation
Full Text:: pericentric inversions and deletions have been involved in karyotype evolution of the two species and a

Using percentile regression for estimating the maximum species richness line

Creator:: Qadir, Mohammad F.
Resource Type:: Dissertation
Full Text:: members, Drs. David R. Thomas, Daniel W. Schafer, Paul A. Martaugh, Dawn Petters, and Robert A. Duncan

Host parasite relationships between deer mice (Peromyscus maniculatus) and their eimerian parasites (protozoa)

Creator:: Fuller, Claire A.
Resource Type:: Dissertation
Full Text:: supportive throughout this venture, Robert G. Anthony, Mark A. Hixon, Philippe A. Rossignol, David

Integration of microbial and chemical controls against codling moth, Cydia pomonella (L.) : laboratory and field evaluation

Creator:: Bajwa, Waheed Ibrahim
Abstract:: The feasibility of managing codling moth, Cydia pomonella (L.), with mixtures of Bacillus thuringiensis-based microbial and selected chemical insecticides was studied under laboratory and field conditions. Joint actions (synergism, additivity and antagonism) of these mixtures were determined for both egg and larval stages. Higher rates of microbial control agents (MCAs),...
Resource Type:: Dissertation
Full Text:: By Waheed Ibrahim Bajwa A THESIS submitted to Oregon State University in partial

Evolutionary history and speciation of the genus Tragopan

Creator:: Islam, Kamal
Abstract:: A study of the phyletic relationships among five species of tragopans and an outgroup, the Blood Pheasant (Ithaginis cruentus), was conducted from 1987 to 1991. Biochemical, behavioral, and external morphologic characteristics were compared. A cladistic approach was used to compare the behavioral, biochemical, and external morphologic data collectively, as different...
Resource Type:: Dissertation
Full Text:: technical assistance: Bruce E. Coblentz, Harold N. Engel, Paul L. Farber, Paul A. Johnsgard, and Robert D

Design and implementation of a heuristic-based decision support system for nurse scheduling

Creator:: Sitompul, Darwin
Abstract:: A decision support system (DSS) for nurse scheduling in hospitals is developed and implemented on microcomputer. The system includes algorithms and databases for developing weekly work and shift patterns and combining these into working schedules for nurses for a specified time horizon, and interface modules for the user to interact...
Resource Type:: Dissertation
Full Text:: . Robert R. Safford, Dr. Rasaratnam Logen Logendran, Dr. John Sessions, Dr. Eugene A. Abrassart and Dr

Adaptive significance of polyploidy in brine shrimp (Artemia parthenogenetica)

Creator:: Zhang, Lei
Resource Type:: Dissertation
Full Text:: southern distribution of polyploids along the China coast may be a result of combined effect of low

ScholarsArchive@OSU

Longshore grain sorting and beach-placer formation adjacent to the Columbia River

Geochemical tracers of Arctic river waters

Modeling sediment transport, channel morphology and gravel mining in river bends

Isozymic and cytological studies on populations of the introduced bee species, Megachile (Eutricharaea) rotundata and M. (Eutricharaea) apicalis

Using percentile regression for estimating the maximum species richness line

Host parasite relationships between deer mice (Peromyscus maniculatus) and their eimerian parasites (protozoa)

Integration of microbial and chemical controls against codling moth, Cydia pomonella (L.) : laboratory and field evaluation

Evolutionary history and speciation of the genus Tragopan

Design and implementation of a heuristic-based decision support system for nurse scheduling

Adaptive significance of polyploidy in brine shrimp (Artemia parthenogenetica)

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search