Thirteen healthy adult males, ages 20-40, consuming self selected
diets, were given instructions to take one 500 mg tablet of ascorbic
acid three times a day with their meals for a period of ten weeks. The
effect of this daily supplementation on copper status was investigated.
An estimation made from...
The purpose of this research was to investigate the
effectiveness of using an early childhood language intervention
program with children who had been determined to be
language delayed at the ages of 3, 4 and 5 and to determine
how the early childhood langauge intervention program was
associated with changes...
The effectiveness of a three-hour nutrition education workshop
for home economics teachers given in 18 locations in Oregon was
evaluated based on responses from 138 teachers. Changes in knowledge
of and attitude toward four nutrition topics (fast foods, vegetarianism,
weight control, and food exchanges) were measured using
questionnaires completed at...
The effects of a subliminal auditory stimulus on the
motor activity and task performance skills of hyperkinetic
children were investigated. Fifteen boys between seven and
twelve years of age, who were enrolled in one of three
treatment groups for hyperactivity, were recruited for
this study. Each child participated, weekly, in...
The incidence and duration of breast feeding were determined
via telephone questionnaires from a sample of 95 women who delivered
healthy infants during the month of September 1982, in the greater
metropolitan area of Portland, Oregon. This sample was limited in
that the women were married, predominately white, over 25...
Data regarding professional communications between physicians
and dietitians in hospitals were obtained from results of 84
responses to a survey of all hospital dietitians (135) listed in the
1982 Oregon Dietetic Associations' Membership and Employment Directory.
The data were gathered utilizing an initial mail-out questionnaire
and a follow-up log booklet...
A study of nutrient intakes was conducted on the Southwest
Oregon non-reservation Indian population during June and July of
1980. Participating households were selected by random methods from
a Southwest Oregon Indian Health Project listing of Indian
households in the six-county area. Twenty-four-hour dietary recalls
were obtained by interview method...
Interrelationships among attitudes toward and practice
of nutrition and health were determined from results of
335 responses to a survey mailed to members of a prepaid
health plan in Portland, Oregon, in the Spring of 1981.
The scales used to test attitudes included Subjective
Index of General Well-Being, Health Locus...
The objective of this project was to evaluate various culturing
and isolation techniques of Campylobacter jejuni and to develop methods
to detect the organism in foods. The morphological, cultural and biochemical
characteristics of C. jejuni were studied using developed
microbiological methods. A variety of media, broths, microaerophilic
atmospheres and diluents,...
The purpose of this study was to assess the attitudes of students, teachers, and principals toward skills taught in consumer and
homemaking education. The sample included 35 principals, 58
teachers, and 272 students in Oregon secondary schools. Respondents'
attitudes were assessed by analyzing the data on the basis of the...
Two experiments involving interactions between wheat
(Triticum aesitivium L.) cultivars and rust pathogens were
investigated. One experiment evaluated the aggressiveness
(measured by infection efficiency and latent period) of
populations of Puccinia recondita Rob. when inoculated on
the cultivar they were isolated from, their "own" cultivar,
and when inoculated onto other...
Previous research had indicated that siblings of deceased children
developed a variety of behavioral problems as a result of the
death (Binger et al., 1969; Cain et al., 1964; Martinson et al., 1980;
Stehbens, & Lascari, 1974). The purpose of this study was to determine
the relationship of selected factors...
This thesis examines the competitive aspects of Douglas-fir trees growing with two commonly associated competitors--red alder and grass--at varying densities. Two Nelder plots in three different environments in the Oregon Coast Range were studied. The sites represented the warm, dry climate of the Willamette Valley; the warm, moist climate of...
The individual through earliest recorded history reveals contradictory views of the
human life-span. "Am I a free and unique individual, able to make choices and decide my
own destiny?, or, "Am I only a victim of circumstance, a speck of dust in the universe's
whirlwind of fate?"
Each view is...
Ultraviolet spectroscopy and dispersive solubility parameters
correlated to the ratios of retention times have proven valuable in
classification of gas chromatography stationary phases by the donor-acceptor
properties. Iodine was directly dissolved into stationary
phases and the absorption frequency shift of complexes was correlated
with the carbon tetrachloride/chloroform retention ratio on...
A study, consisting of two sequential greenhouse experiments, was
designed to determine the effects of soil liming upon the fungal
partner in a mycorrhizal association. A Willamette Valley foothill
soil, of the Jory series, was limed in increments to achieve a range
of acidity and alkalinity. The P-deficiency and P-fixing...
Three sets of blood samples were taken from 532 beef calves of two populations at 24 to 48 h after birth, at an average age of 164 d (at time of vaccination for infectious bovine rhinotracheitis virus or IBRV) and at an average age of 224 d (60 d postvaccination)....
Serum samples were collected between 24 and 48 h of age
from 408 Hereford calves of a selection experiment and from 200
Angus, Hereford and Red Poll calves of another experimental
population (Germ Plasm Utilization project). Concentrations of
Immunoglobulin G₁ (IgG₁) were determined by single radial
immunodiffusion. Breed or selection...