In 1968, a study conducted by the sanitarians of the State Health Division and Benton County Health Department revealed a high failure rate of on-site sewage disposal systems in Southwest Corvallis. The survey team concluded that sewage disposal in this area was inadequate, and a significant health hazard existed due...
This study was a comparison of the prevalence of infectious
gastrointestinal disease and the quality of construction of individual,
surface source water systems in Lincoln County, Oregon.
Two measurement instruments were developed for this study. An
objective instrument was developed to determine if the water systems
observed in the study...
This study examined the existence and effectiveness of current
pesticide management programs in the Caribbean region. A questionnaire
was developed to assess the current pesticide managment programs in
the Caribbean region and to determine the strengths and weaknesses of
the existing education and training programs, governmental policies,
and other resources....
Eleven small Mesozoic plutons crop out within a 76-squaremile
area of the southern Seven Devils Mountains in west-central
Idaho. The plutons are divided into a mafic suite, an older granitic
suite, and a younger granitic suite on the basis of age, lithology, and
degree of metamorphism.
The six plutons of...
This paper records a study of two quadratic number fields. In the first field, denoted by Ra[[square root] 11], the unique factorization theorem holds. In the second field, denoted by Ra[[square root] 10], it is demonstrated that the unique factorization theorem does not hold and therefore ideals are introduced to...
A computer program was developed for analyzing culverts
under earth embankments constructed of compacted cohesive soil
using the finite element method. The culvert-embankment system
is represented as a two-dimensional plane strain problem. The
plane of investigation is taken normal to the culvert axis. The soil-culvert
interface is assumed to be...
The sea offers a wide variety of potentially useful resources. Marine algae have been a rich source of structurally unique natural products showing diverse biological properties. The current need to develop new antifungal, antibiotic, anticancer and antiviral drugs has prompted intense research efforts into the discovery, isolation and structure determination...
Farlowia mollis is a marine red alga that grows in the
intertidal region along the coast of Oregon. We began studying
the chemistry of this alga after a survey of Oregon seaweeds
revealed possibly interesting chemistry and antimicrobial activity
in its crude organic extract.
Over the past three years the...
Mechanical properties of Nb-Ti composite superconducting wires were tested at
room temperature. The results were analysed using simple composite theory, the rule
of mixtures. The objective is to predict the mechanical properties of Nb-Ti
superconducting composite wires as a function of volume ratio and geometry of the
components, the composite...