Studies conducted with the adult western cherry fruit fly,
Rhagoletis indifferens Curran, revealed that successful oviposition
occurred in three distinct phases, the prepenetration phase, the
penetration phase and the postpenetration phase. During the
postpenetration phase which averaged 51 seconds (range 18 to 86), the
females dragged their ovipositor over the...
The biochemical degradation of domestic sludge deposits exposed to benthic marine conditions was investigated using a laboratory Deep Sea Simulator. The rate and extent of deposit stabilization were determined for select hydrostatic pressures and hydrogen acceptor conditions by monitoring depletion of particulate organic carbon in 2.0 and 3.0 centimeter deposits....
Results of recent studies on Piagetian cognitive development,
though equivocal, showed that the architectonic of formal operational
schemata is not possessed by a sizeable percentage (up to 52%) of adolescents
and young adults. The purpose of the present study is two
fold: (i) To assess the cognitive levels of a...
In this research a model is developed to predict population for relatively
rural areas experiencing rapid economic development. Of the many
ways to predict population size, in this research a "demographic-economic"
model is chosen for use. The economic variables which aid in projecting
population are total employment, and net changes...
Preliminary studies with a dog (Canis familiaris) and a coyote
(Canis latrans) showed that these carnivores can serve as definitive
hosts in the life cycle of Sarcocystis fusiformis of cattle (Bos
taurus) and a microscopic Sarcocystis of mule deer (Odocoileus
hemionus hemionus). Preliminary studies to determine effects of the
cervine...
The objectives of this investigation were two-fold: (1) to examine possible seed and cone characteristics and their usefulness as seed maturity indices, and (2) to examine the effects of artificial ripening on seed maturation and germination. Cone fresh weight, cone length, cone specific gravity, cone color, seed fresh weight, seed...
Silurian and Devonian rocks are exposed for approximately 8 square kilometers inthe KootenayArc structural province of northeastem Washington. These Middle Paleozoic rocks overlie the Upper Cambrian Metaline Limestone and the Ordovician Ledbetter Formation, which includes slates, siltstones, and limestones. Two Silurian units crop out in this area. Unit A is...
Winter recreation has increased rapidly in the Crater Lake -
Diamond Lake area of Oregon in recent years. Park and forest
managers are concerned about existing and potential impacts of the
recreationists on the resources and other recreationists.
The purpose of this study was to describe the nature and extent...
Diffusion of short chain n-alkanes was found to be faster in the
polydimethylsilicone elastomer SE-30 than in the polydimethylsilicone
oil SF-96-2000. The opposite was true for the longer chain n-alkanes
suggesting that choice of stationary phase for gas chromatography
would depend on the chain length of sample components. The dependence...
The gray-tailed vole (Microtus canicaudus) demonstrated a
requirement for selenium and vitamin E. Animals deficient in both
nutrients suffered from liver necrosis and an unthrifty condition
characterized by inappetence, profuse diarrhea, and swollen eyes.
Vitamin E appeared less effective than selenium as a prophylaxis
against this syndrome.
Total body weights,...
Barth's theory of transactional analysis is applied to the
community of Tiller, Oregon and its reaction to a development proposal.
Community behavior patterns vis-a-vis the development proposal are
examined from a processual point of view to determine how these
patterns are generated.
The community's history and contemporary situation are described....
Competition for the conventional supply of wood residue utilized
by the particleboard industry is increasing. Utilization of low
quality residues by the pulp and paper industry, new sawmill and
plywood recovery techniques, and the growing practice of converting
low quality residues into steam and electrical power have all cut into...
A study was conducted to characterize the vesicular-arbuscular (VA) mycorrhizal fungi of commercially grown Easter lily. Monthly field soil and root samples were collected from March through September, 1975, from five fields in the coastal area of southern Oregon and northern California. Soil sievings were inoculated onto clover, onion and...
The capacity for root growth and concentration of indole-3-acetic acid and abscisic acid in the roots of western hemlock seedlings was investigated. The root regenerating capacity (RRC) was defined as the increase in root length, greater than 5 mm, following a 28-day test period. RRC measurements over a two-year period...
The viability of incorporating optimization within budgeting
methodologies is examined.
Resource Planning and Management System and optimization are
proposed as tools to enhance the planning and control functions of the
budgeting process. Three hypotheses are proposed: (1) Integer
Programming, Integer Goal Programming and Dynamic Programming
can be substituted in place...
Investigations were conducted to determine the nature, type,
functional properties and the amounts of different proteins found in
bovine rumen tissue.
Data concerning the effect of pH and salt concentration on
the extractability of proteins from rumen tissue indicated that 92%
of the proteins could be extracted in aqueous solutions...