An investigation was conducted on factors influencing sex ratio in Eurytemora. Fifteen generations of brother/sister mating have produced family lines with a high proportion of either males or females of Eurytemora affinis. On this basis, a polygenic mechanism of sex
determination is proposed for E. affinis. Laboratory experiments on the...
Solutions to the variable permeability magnetostatic field
problem are achieved in both rectangular and cylindrical coordinates
for a wide variety of magnet geometries. The resulting
difference equations are solved iteratively and a method is
provided which substantially increases the rate of convergence
for these type of problems. Magnetization curves for...
Apples growing in New Zealand, Argentina, Mexico, Michigan and
Washington were used to provide the compositional data and to
develop the analytical procedures for the use in verification of
authenticity of apple juices.
High Performance Liquid Chromatography (HPLC) techniques were
applied for glucose, fructose, sucrose, sorbitol, malic, citric,
quinic, shikimic,...
This is an integrated assessment across terrestrial, freshwater, and coastal marine realms. It includes the coast range of Oregon and Washington as well as Vancouver Island in British Columbia. The marine portion only includes the coastline and shallow subtidal; the next iteration will include the offshore component.
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Recommended Citation:
Vander Schaaf, D., G. Wilhere, Z. Ferdaña, K. Popper, M. Schindel, P. Skidmore, D
Archaeologists use diversity as one way of
characterizing their assemblages. Diversity refers to both
the number of artifact classes present (richness) and the
proportional representation of classes (evenness).
Numerical diversity indices measure one or both components.
Archaeologists use assemblage diversity to infer behavior
of prehistoric cultures.
Archaeological inferences about behavior...
The purpose of this study was to answer the following question: What was the
perceived value to planners of incorporating information from ecotourists about their
perceived needs in the standard system presently being used to plan interpretation?
The Ecotourist Needs Assessment (ETNA) process was proposed as an external needs
assessment....
The rapid expansion of western juniper into neighboring plant communities during the past 130 years has caused considerable concern because of increased soil erosion, reduced stream
flows; reduced forage production; altered wildlife habitat; changes in plant community composition, structure, and biodiversity; and the replacement of mesic and semi-arid plant communities...
Concentrations of selenium (Se), manganese (Mn), zinc (Zn), cadmium (Cd), lead (Pb) and arsenic (As) were measured in the water column, sediment and biota, in conjunction with selected physicochemical data, from representative wetland types at a mining site within Salt Lake County, Utah, USA. The selected field sites included Oolitic...
This compilation of theses and dissertations (a part of the OSU Bibliographic Series) for the period 1970-1977 reflects this university's emphasis on research and graduate study. It may be viewed as an indicator of the contributions made to the state of Oregon through graduate study and research at Oregon State...