This study was conducted at portions of Trap Bay Creek, a medium-sized third-order stream on Chichagof Island, Southeast Alaska, to
1) quantify short-term sediment transport and channel morphology changes, 2) relate measured sediment transport rates to the major hydrologic parameters that appeared to determine the mechanisms of sediment transport, and...
This thesis consists of five chapters: a general introduction, two manuscripts, a collection of published lesson plans, and a general conclusion. The works collected herein are united by the common theme of practical applications in plant breeding. The first manuscript reports a study performed on five malting barley lines grown...
Addiction is a word that represents a condition that, at best, causes minor disruptions to one’s life and, at worst, is lethal. The current definition was developed by 80 neuroscientists. It references substance use and other behaviors and includes food and sex. Addictions do not seem to be lessening but...
Needle length in young ponderosa pine (Pinus ponderosa Dougl. ex Laws var. ponderosa) was assessed for its ability to estimate site quality of afforested land in Neuquén, Argentina. The objective was to determine the best aspect on the tree, number of needle age classes, and number of trees that would...
This study determined the importance of specific research tasks to the present job requirements of State Department of Education professionals, college and university instructional faculty, and secondary school counselors in Oregon. The instrument utilized in the research was designed and validated through a Delphi process. The computed reliability coefficient was...
The abundance and biomass of cutthroat trout (Salmo clarki) have
been found to be greater in logged than in forested streams of the
Oregon Cascades. Although certain prey taxa increase in abundance
following logging, habitat stability generally decreases and cover
structures are removed. Research was conducted to examine the manner...
Prevention of groundwater contamination by agricultural
chemicals requires an understanding of the complex
processes that control pesticide movement below the soil
surface. Through this understanding it is possible to try
to predict which areas may be most vulnerable to
contamination. The many models that have been developed to
characterize pesticide...
The purpose of this study was to compare the delinquent behavior, psychological
health, and emotional wellbeing of maltreated and nonmaltreated adolescents in a
chemical dependency treatment program. Data were collected over a seven year period
from intake interviews and Minnesota Multiphasic Personality Inventory (MMPI) scores
of 522 adolescent patients at...
Water is one of the most interdisciplinary topics in natural resources librarianship. At OSU we not only support the growing Water Resources Graduate Program (in which faculty from six colleges and Extension participate), but a search of our library catalog for "water"-related theses and dissertations reveals that disciplines as diverse...
Water is one of the most interdisciplinary topics in natural resources librarianship. At OSU we not only support the growing Water Resources Graduate Program (in which faculty from six colleges and Extension participate), but a search of our library catalog for "water"-related theses and dissertations reveals that disciplines as diverse...
Full Text:
the web as a 'thing' and start thinking about it as people connected.
-- T. Berners-Lee
Margaret
Simple parameterizations of dune erosion are necessary for forecasting erosion potential prior to an oncoming storm. Dune erosion may be parameterized in terms of the elevation of the total water level (composed of surge, tide, and wave runup) above the dune base and period of exposure of the dune to...
To measure organismal coherence in a pelagic ecosystem, we used moored sensors to describe the vertical dynamics of each step in the food chain in shelf waters off the west shore of Oahu, Hawaii. Horizontally extensive, intense aggregations of phytoplankton, zooplankton, and micronekton exhibited strong diel patterns in abundance and...
The extensive literature in biomedical ethics on physician-assisted death has represented the debate to involve three parties with significant interests. First, there are arguments regarding the legitimacy of terminally patients seeking to exercise an expanded right of self-determination. Furthermore, questions have been posed regarding the compatibility of a patient request...
The importance of spatial pattern in ecosystems has long been recognized. However, incorporating patchiness into our understanding of forces regulating ecosystems has proven challenging. We used a combination of continuously sampling moored sensors complemented by shipboard sampling to measure the temporal variation, abundance, and vertical distribution of four trophic levels...
The authors employ a social-ecological framework to aid our understanding of the complex array of factors in the immediate and broader environment that influence adolescent sexual development. Further, sexual development is viewed as normative and critical to positive growth. The authors provide an overview of the
Two-Cities Study, a multi-stage...
We consider an SI model of three competing species that are all affected by a single pathogen which is transmitted directly via mass action. The total population sizes of the three species satisfy a three-dimensional Lotka-Volterra competition model. We address the interaction between competition and disease dynamics, and show that...
We examined the characteristics of biological patches at four different locations to assess the relationship of patch vertical scale, amplitude, and persistence. In contrast to patches of larger animals, we found that the majority of coherent aggregations of plankton at each site were vertically compressed, with most smaller than 5m...
This first-grade publication, Nutri-Kids Visit the Zoo, was developed by the Oregon State University Extension Service Expanded Food and Nutrition Education Program (EFNEP). It is intended for use in the classroom but may be used in after-school settings. This publication is designed to help first-graders learn about basic nutrition and...
This first-grade publication, Nutri-Kids Visit the Zoo, was developed by the Oregon State University Extension Service Expanded Food and Nutrition Education Program (EFNEP). It is intended for use in the classroom but may be used in afterschool settings.
This publication is designed to help first-graders learn about basic nutrition and...
Nutri-Kids Visit Goodeater Farm was developed by the Oregon State University Extension Service, Expanded Food and Nutrition Education Program (EFNEP). It is intended for use in the classroom but may be used in other settings. The purpose of this publication is to help five- and six-year-olds learn about food and...
Storage lipids of fifth copepodites (C5) of Culanus finmarchicus from Georges Bank and the Gulf of Maine were quantified from video images and by Iatroscan (thin-layer chromatography with flame-ionization detection, FID). Oil withdrawn from the oil sac by micropipette was pure wax ester (WE); triacylglycerols (TAG) were elsewhere in the...
Microbial communities are responsible for the bulk of biogeochemical processing in temporary headwater streams, yet there is still relatively little known about how community structure and function respond to periodic drying. Moreover, the ability to sample temporary habitats can be a logistical challenge due to the limited capability to measure...
Domestic dogs’, Canis familiaris, responsiveness to human action has been a topic of scientific interest for almost two decades. However, are all breeds of domestic dog equally prepared to succeed on humanguided object-choice tasks? In the current study we compared three breeds of dog with distinct predatory motor pattern sequences...
A human-centric issue that has not been considered in
the design of end-user programming environments is
whether gender differences exist that are important to the
design of these environments. Ignoring this issue would
miss the opportunity of enhancing the effectiveness of
end-user programmers by incorporating appropriate
mechanisms to support gender-associated...
The Expanded Food and Nutrition Education Program (EFNEP) helps limited-income families in Oregon
improve their nutrition practices. These include learning to:
□ Stretch family food dollars
□ Choose foods for better nutrition for family members
□ Purchase food for nutritional needs
□ Improve food production, preparation, storage, safety, and sanitation
The Expanded Food and Nutrition Education program (EFNEP) helps limited income
families in Oregon improve their nutrition practices. These include
learning to:
□ Stretch family food dollars
□ Choose foods for better nutrition for family members
□ Purchase food for nutritional needs
□ Improve food production, preparation, storage, safety, and...
Nutri-Kids Visit Goodeater Farm was developed by the Oregon State University Extension Service, Expanded Food and Nutrition Education Program (EFNEP). It is intended for use in the classroom but may be used in other settings.
The purpose of this publication is to help 5- and 6-year-olds learn about food and...
The Expanded Food and Nutrition Education program (EFNEP) helps limited income families in Oregon improve their nutrition practices. These include learning to:
□ Stretch family food dollars
□ Choose foods for better nutrition for family members
□ Purchase food for nutritional needs
□ Improve food production, preparation, storage, safety, and...
Using a probability-based neighborhood sample of urban African American youth and a sample of their close friends (N = 202), we conducted a one-year longitudinal study to examine key questions regarding sexual and drug using norms. The results provide validation of social norms governing sexual behavior, condom use, and substance...
End users create software when they use spreadsheet systems, web authoring tools and graphical languages, and when they create educational simulations, macros-by-demonstration, and dynamic e-business web applications and mash-ups. Some end-user developers, such as accountants or teachers, may have no formal training at all in programming. Others, such as scientists...
Although there have been a number of studies of
end-user software development tasks, few of them have
considered gender issues for real end-user developers
in real-world environments for end-user programming.
In order to be trusted, the results of such laboratory
studies must always be re-evaluated with fewer controls,
more closely...
"Code coverage visualizations using block coverage neither guided developers
toward productive testing strategies, nor did these visualizations motivate
developers to write more tests or help them find more faults than the control
group. Nevertheless, code coverage visualizations did influence developers in a
few important ways. Code coverage visualizations led developers...
1. The recommended allowance of the National Reasearch
Council, 100 mg ascorbic acid for the 18-year-old boys and 80 mg
for the 16 to 19-year-old girls, did not maintain mean plasma ascorbic
acid values at levels as high as the respective saturation means. For
the girls all the mean values...
Wind-driven coastal ocean upwelling supplies nutrients to the
euphotic zone near the coast. Nutrients fuel the growth of phytoplankton,
the base of a very productive coastal marine ecosystem
[Pauly D, Christensen V (1995) Nature 374:255–257]. Because
nutrient supply and phytoplankton biomass in shelf waters are
highly sensitive to variation in...
A major goal of the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) has been to understand the impacts of climate change and variability on the coastal ecosystems of the inner shelf of the California Current Large Marine System in particular, and other marine and even nonmarine systems more generally....
Atrazine (ATZ) is a selective triazine herbicide used primarily for pre-emergent weed control in corn, sorghum and sugar cane production. It is one of the most widely used herbicides in North America. Some research published over the last decade suggests that chronic exposure to environmentally relevant ATZ concentrations can adversely...
There has been little research into how end-user programming environments can provide explanations that could fill a critical information gap for end-user debuggers - help with debugging strategy. To address this need, we designed and prototyped a video-based approach for explaining debugging strategy, and accompanied it with a text-only approach....
Despite years of research into human computer interaction (HCI), the environments programmers must use for problem-solving today—with separate modes and tools for writing, compiling, testing, visualizing, and debugging— derive their basic structure from historical accident, and take little advantage of HCI research into the cognitive issues of programming. Neglecting these...
Little is known about the strategies end-user programmers use in debugging their programs, and even less is known about gender differences that may exist in these strategies. Without this type of information, end-user programming systems cannot know the "target" at which to aim, if they are to support male and...
Although researchers have begun to explicitly support end-user programmers' debugging by providing information to help them find bugs, there is little research addressing the right content to communicate to these users. The specific semantic content of these debugging communications matters because, if the users are not actually seeking the information...
Although gender differences in a technological world are receiving significant research attention, much of the research and practice has aimed at how society and education can impact the successes and retention of female computer science professionals—but the possibility of gender issues within software has received almost no attention. If gender...
Background: The critical importance of improving the well-being of people with disabilities is highlighted in many national health plans. Self-reported health status is reduced both with age and among people with disabilities. Because both factors are related to health status and the influence of the age at disability onset on...
Forest health issues are on the rise in the United States, resulting from introduction of alien pests and diseases, coupled with abiotic stresses related to climate change. Increasingly, forest scientists are finding genetic/genomic resources valuable in addressing forest health issues. For a set of ten ecologically and economically important native...