An emmission sampling system was developed to measure pollutants
emitted from a mobile agricultural incinerator developed at
Oregon State University. The system was designed to collect a particulate
sample on an 8" x 10" fiber glass filter and collect a gaseous
sample in a plastic bag. Pollutants measured were particulates...
Pediococcus cerevisiae, Lactobacillus casei, Lactobacillus plantarum,
Leuconostoc mesenteroides, Lactococcus diacetylactis Bifidobacterium
bifidum, Leuconostoc oenos, and mixed cultures of Propionibacterium
shermanii and P. cerevisiae were used to ferment cucumber juice brine
(CJB) at 22-26°C for 1.5 months. Sugar utilization ranged from 14.6 to 86.1%.
pH of the fermented CJB ranged from...
Pectinmethylesterase (PME) activity in fresh cucumber
fruit was determined. The effects of several cationic
species, temperature, pH, and acetic acid on the activity
of cucumber PME was investigated. The efficacy of
blanching, infiltration with CaCl₂ or acetic acid, and
fermentation with 0 and 40 mM CaCl₂ on inhibition of
cucumber...
In January-February 1971 five replicate 0.07 m² Van Veen grabs
were obtained from each of 12 stations in Arthur Harbor and nine Van
Veen grabs were obtained from two stations in nearby Bismark Strait.
The 69 grab samples yielded 78,395 individuals which were separated
into 282 taxa, including 108 species...
Beginning with the inception of American art history as a formal discipline in the 1940s, the dominant mode of interpreting nineteenth-century American landscape painting has been to view aspects of the landscape as symbols for grand cultural, religious, national, and moral narratives. While this method of interpretation highlights some key...
Pectic substances in the cell wall have long thought to
be responsible for the textural changes in fruit during
ripening and senescence. Compositional variation within
the pectic macromolecules could affect the external
characteristics of the fruit. Strawberries undergo adverse
quality changes such as softening and juice loss after
freezing and...
Dietary cyclopropenoid fatty acids (CPFA) have long
been known to cause pronounced physiological disorders in
both farm and laboratory animals. Past work has shown
CPFA to be a powerful promoter of carcinogenesis in trout,
rats and mice. Sterculic and malvalic acids (CPFA's) are
found in seed lipids of plants from...
A market survey of aluminum users' purchasing
policies and the concept of opportunity costs are combined
in a quantitative decision model designed to
assist aluminum suppliers' efforts in directing products
and services improvements.
The opportunity cost, as the percentage of business
forgone, is determined for seven criteria representing
the products...
Spot fires caused by lofted embers (i.e., firebrands) can be a significant factor in the spread of wildland fires. Embers can be especially dangerous near the wildland-urban interface (WUI) because of the potential for the fire to be spread near or on structures. Many studies have investigated the transport of...
Gazing behavior is a vital part of nonverbal communication, as it can provide information about attentional state, subtext, environment, and point of view. Both dogs and cats have previously been shown to display gazing behavior when presented with an unsolvable task, as well as follow nonverbal directional ques given by...
Provides information about complexity of watersheds. Outlines ways to form partnerships, to develop strategies for enhancing watershed resources, and to implement enhancement projects.
Full Text:
together
as a unit—an ecosystem or a watershed.
Watershed Soils, Erosion,
and Conservation
Hudson Minshew
Environmental swabs and meat samples from two of three seafood
processing plants sampled on the Oregon Coast were found to
contain Salmonella. Although these enteropathogens were not isolated
from the finished products, the danger of contamination is great
since the processing received by many seafoods is not designed to
yield...
The serological detection of staphylococcal enterotoxin A by the
quantitative technique of Laurell electroimmunodiffusion is described
as well as the application of the technique to the detection of small
quantities of enterotoxin A in foods.
High dilutions of type-specific rabbit antiserum were used in 1%
agarose gels, 1 mm thick,...
Janet Lamberson noted the presence of birds around her home during 1985-1990. She noted 10-33 species each month, 48-57 species each year, and a total of 72 species overall. 63 species were terrestrial birds, most of which were observed in all six years of her observations.
The semimonthly occurrence for...
The 1979 incident at Three Mile Island drew attention to weaknesses in the capability to obtain and analyze reactor coolant
samples in an environment where the reactor core incurs significant
damage. As a result, the U.S. Nuclear Regulatory Commission promulgated regulations requiring that reactor coolant analytical capabilities be upgraded so...
Delta-sigma data converters have gained popularity in both analog-to-digital and digital-to-analog converters (ADCs and DACs) due to their simplicity, high linearity and immunity to many analog circuit imperfections. These data converters include features such as oversampling, noise-shaping, and (historically) single-bit quantization. Single-bit converters are preferred for their inherent linearity. This...
Polycyclic aromatic hydrocarbons (PAHs) are complex mixtures that form when organic matter is burned. Humans are primarily exposed to PAHs via air pollution from incomplete combustion of fossil fuels and biomass, such a motor vehicle exhaust, cigarette smoke, wood smoke, or industrial emissions; or via ingestion of PAHs bound to...
The recency of the Food and Drug Administration menu-labeling regulations and the lack of research available on restaurateur response initiated this study. Advocates claim the new regulations will protect consumers and foster the selection of nutritious choices, however, critics believe the regulations will result in restaurateurs removing all nutrition information...
Species distribution models (SDMs) are currently being used to identify essential fish habitat and guide
fisheries management worldwide. We present SDMs based on generalized linear mixed models (GLMM) of
the fall distribution or occurrence of juvenile American shad (Alosa sapidissima) and juvenile striped bass
(Morone saxatilis) in the Hudson River...
Recommendations are provided in this watershed analysis to identify actions and management decisions on the part of BLM that might improve watershed health in the Trask River watershed.
The effects of bicycle exercise on specific anthropometric and
physiological measures were observed in two test subjects (S1 and S2)
over a twelve week exercise period. The two subjects, one male (S1)
and one female (S2) participated in a graduated bicycle exercise program.
Body weight, body measurements, circulatory function tests,...
Support Vector Machines (SVM) and Random Forests (RF) have
consistently outperformed other machine learning algorithms on a variety of
problems. SVM can be used for classification and regression on many types of
data (e.g. nonlinear, high dimensional), but cannot handle missing or mixed data.
This research implements a permutation-based variable...
The development and maintenance of a family achievement
theme was analyzed using two dramas: Long Day's Journey Into Night
by Eugene O'Neill and A Death of a Salesman by Arthur Miller. Three
propositions were tested: 1) The development of a family achievement
theme involves a transaction between individual personality needs...
The effects of race and socio-economic-status on behavior
disorders in 362 black and white clinic boys between the ages
of six and twelve, were investigated using the Child Behavior
Check List. Precision matching and a representative distribution
of socio-economic-status was used in order to adequately study
both the interaction and...
This study examined the relationship between a spouse's therapeutic
role attitude and the mate's evaluation of the spouse's
therapeutic role behaviors. The therapeutic role consists of
supportive behaviors directed towards one's spouse. Twenty-five
couples were recruited from Oregon State University classes.
Attitude questionnaires were administered to all respondents.
The Pearson...
Among sexually-active, young women, the motivation to contracept
seems to be more of an issue than the technology. This study explored
two factors associated with the motivation to contracept; specifically,
the relationship of sex role orientation (SRO), and locus of control
(LOC), to the contraceptive use patterns of 77 unmarried,...
The purposes of this study were to construct a Likert scale to
measure the attitudes of husbands' and wives' toward the therapeutic
role, and to identify the basic components underlying this role.
A 32 item scale was developed from questionnaire data obtained
through a systematic random sample of households in...
This study explored the relationship among marital role expectations,
religiosity, and other variables including age, dating status of
subjects, living arrangement, marriage plans and parents' marriage.
Data were obtained from a sample of 460 Oregon State University
students in April, 1976. They were primarily young students, 18 - 19
years...
The major purpose of this study was to compare the occurrence
of "delinquent" and "non-delinquent" responses and their contingent
social reinforcements during informal cottage peer interaction at a
training school for adolescent delinquent girls. The following hypotheses were tested: (1) The occurrence of delinquent responses exceeds
the occurrence of non-delinquent...
The major purpose of this exploratory study was to
develop an explanatory model of self-esteem and to interpret
the model using the Social Exchange framework. To
this end, a main effects and an interaction model emerged
which offer promise toward understanding the components of
self-esteem. This study examined 325 individual...
The purpose of this study was to explore the association
between sex-role orientation and contraceptive behavior
in an unmarried population. One hundred and twentyeight
sexually active unmarried college students comprised
the sample. The test instrument was made up of the Sex-
Role Stereotypic Questionnaire developed by Rosenkrantz,
Vogel, Bee, Broverman,...
In response to the growing preference for the small family, this study was carried cut to acquire information about women who expect zero, one, or two children. The purposes of the study were: to identify the cultural and socioeconomic characteristics of these women; and to determine which of these characteristics...
The major concerns of this study were: (1) the money
management practices of teenage girls and their parents,
(2) parental practices in teaching the use of money, (3)
parental use of money to control behavior, (4) the sources
of the teenage girls' spending money, and (5) the amount
and disposition...
Four instruments were developed to assess sex education
attitudes and skills of parents. The Parental Perception of
Preadolescent Child (PPPC), Parental Attitudes Toward the Sex
Education of Children (PATSEC), Topic Checklist (TC) and
Index of Challenging Questions for Parents of Preadolescents
(ICQPP) provided measures on how parents perceive maturity
and...
Social competence has emerged in research on social development
as a construct unifying behavioral and motivational dimensions of social
development in the preschool child. It draws from theories of social
learning, cognitive development, and competence motivation. The
theoretical relevance and empirical utility of the construct indicate
the need for further...
This study was conducted to investigate the distribution
of glutathione peroxidase (GSH-Px) and selenium in
semen of the boar, bull, ram and stallion, and in the reproductive
tissues of the boar, bull and ram. The effect
of repeated noncryoprotective freeze-thawing on GSH-Px
activity was also studied. Both hydrogen peroxide (H₂0₂)...