The improvement of coupled tendon transfer surgeries through the insertion of an adaptive engineering mechanism was explored using biomechanical simulations performed in OpenSim. Tendon transfer surgeries are commonly performed on the upper extremity to restore hand function. A conventional 4-tailed tendon transfer procedure model and a modified 4-tailed procedure model...
The cultivated strawberry, Fragaria Xananassa, is one of the youngest domesticated plants. Its 18th century origin via hybridization in Europe between the North American F. virginiana and the South American F. chiloensis was documented by the botanist Antoine Nicolas Duchesne. His 1766 “Natural History of Strawberries” is an extraordinary work...
Two experiments were conducted to determine the effects of
moisture stress on physiological changes that occur during the vegetative
and reproductive stages of the wheat (Triticum aestivum L.)
plant, and to relate these effects to seed yield, quality and performance.
In a field experiment, different levels of moisture stress were...
Recent advances in DNA vaccine technology has brought about a promising strategy for the control of viruses that contain surface membrane glycoproteins. This type of vaccine involves the intramuscular injection of a bacterial plasmid containing a gene encoding a viral protein. The strategy uses eukaryotic processing of the protein as...
Diking and channelizing in the Toppenish Creek basin, associated with irrigated agricultural development, has altered its natural ecosystem function and hydraulic processes. We seek to answer two research questions: if surface waters are diverted for aquifer recharge in the winter, will this water be available for ecosystem function in the...
Swash hydrodynamics were investigated on an intermediate beach using runup data obtained from video images. Under mild, near-constant, offshore wave conditions, the presence of a sandbar and the tidally controlled water depth over its crest determined whether most of the incoming waves broke before reaching the shoreline. This forced a...
Nitula baltica sp. nov. and Cyathus dominicanus sp. nov. are described from Cenozoic Baltic and Dominican amber. These are the first fossil members of the Family Nidulariaceae and show that the basic characteristics of this group were already established some 40-50 million years ago.
Mosses (Phylum Bryophyta) are widely considered to be among the most ancient groups of land plants (embryophytes) and they are the second most speciose embryophyte phylum with ~13,000 extant species. Despite their diversity and antiquity, mosses have a limited fossil record, which primarily consists of gametophytes entombed in Cenozoic amber....
Faithful segregation of genetic material during cell division is essential to all life on earth. In eukaryotes, the mitotic spindle – a bipolar array consisting of cytoskeletal filaments called microtubules – is the cellular machinery responsible for this function. The mitotic spindle requires both exquisite spatiotemporal organization and the generation...
Tracking the dynamic morphology of active materials during operation of lithium batteries is essential for identifying causes of performance loss. Digital volume correlation (DVC) is applied to high-speed operando synchrotron X-ray computed tomography of a commercial Li/MnO₂ primary battery during discharge. Real-time electrode material displacement is captured in 3D allowing...
The amount of energy we use and the ways that we get that energy sit on the edge of dramatic change as the carbon budget which can keep the planet under 1.5C of global average temperature increase gets smaller (Allen, 2018). In response, we continue to research and develop renewable...
A majority of human caloric intake is in the form of complex carbohydrates, which have been assumed to be tasteless. However, there is considerable evidence from rat and human studies to support the existence of a secondary carbohydrate taste receptor that detects glucose polymers. Psychophysical studies in our lab suggest...
The resurgence of creationism the past few years has been led by advocates
of recent-creationism. These individuals, a minority among creationists in general,
argue that the entire universe was created approximately 10,000 years ago in one six-day
period of time. Recent-creationists support their position by appealing to the
Genesis account...
Ocean testing of Wave Energy Converter (WEC) prototypes is necessary to facilitate commercial WEC development. The Ocean Sentinel Instrumentation Buoy, completed in August 2012, provides a stand-alone load for WEC prototypes during ocean testing. The first part of this work was to develop the power conversion and data acquisition equipment...
Gaseous diffusion equations which describe the diffusion of
oxygen and carbon dioxide through soil have been studied by several
investigators. However, these efforts seldom considered gaseous
diffusion through soil together with the effects of soil environmental
factors such as soil temperature and soil water content on sink or
source strength....
Background: All health systems struggle with unlimited needs for health care, yet limited resources with which to address them. Under national health insurance systems, policymakers must make explicit and potentially contested decisions around resource allocation. Policymakers have recognized the need to include public values in decisions of how to distributing...
In this work, flow through synthetic arrangements of contacting spheres is studied
as a model problem for porous media and packed bed type flows. Direct numerical
simulations are performed for moderate pore Reynolds numbers in the range,
10 ≤ Re ≤ 600, where non-linear porescale flow features are known to...
Hop varieties were compared under field and greenhouse conditions to determine their relative susceptibility to the twospotted spider mite, Tetranychus urticac Koch. A fertility schedule was prepared for mites on resistant and susceptible varieties, and tests were conducted to compare sex ratio, oviposition rate, survival rate, and developmental rate of...
Three kkeeyy variables are examined to determine their influence on
the process of community planning at Corvallis, Oregon. These are
(1) the setting of priorities, (2) organization and (3) external
reference. Interactions of goals program participants were recorded
as the community responded to comply with Oregon Senate Bill #100's
requirement...
In previous work (Blakemore et al. Org. Lett. 2005, 7, 4721; Heterocycles 2006, 70, 609), successful elaborations of the lupine alkaloids (±)-α-isosparteine (dl-2) and (±)-β-isosparteine (dl-3) were realized from a common tetraoxobispidine precursor, 3,7-diallyl -2,4,6,8-tetraoxo-3,7-diazabicyclo[3.3.1]nonane (93). Herein, the tetraoxobispidine approach to lupine alkaloids was extended to a total synthesis of...
Material failures in heat exchangers are often
closely tied to events associated with the conditions
of service and operating parameters. These events can
generally be attributed to adverse load application and
higher than optimum operating temperatures that could
lead to changes in the microstructure of the materials
and fatigue failure...
We are at risk of losing the sagebrush steppe in the floristic Great Basin to the invasion of Bromus tectorum L., cheatgrass. The floristic Great Basin includes the Central Basin and Range, the Northern Basin and Range, and the Snake River Plain. The Great Basin receives most of its precipitation...
Several methods for estimation of the potential
shelf-life of pasteurized fluid milk products were evaluated
for their efficacy in this investigation. These methods
were evaluated and compared to sensory, biochemical and
bacteriological indices through a series of experiments
conducted on different brands of commercially pasteurized
fluid milk. The methods evaluated...
Hop (Humulus lupulus L.) cones are used extensively in beer brewing to enhance flavor and impart bittering. Verifying hops cultivar identity has traditionally been accomplished by morphological characteristics or a chemical analysis of lupulin glands but these traits may vary according to environmental influences. The objective of this research was...
The purpose of this study was to ascertain the factors which
influenced undergraduate students in the School of Education at Oregon
State University to select vocational teacher education as their
major. Data were collected from 315 vocational, practical arts, and
non-vocational undergraduate teacher education majors who were
enrolled in teacher...
This thesis consists of three studies to better understand the environmental sustainability potential for algal-based biofuels. Initially, a comparison of recent life cycle assessments (LCA) of theoretical full-scale algal biofuel facilities was developed. These studies include varying boundaries and scope, functional units, and technology maturity assumptions. The comparison converted results...
In light of recent economic and social changes rural communities continue to worry about the future of their young people. Will they be prepared for the challenges that lay ahead as they move into adulthood? The aspirations youth hold set them on a pathway toward achieving goals, beginning post-secondary education,...
The Polycomb group (PcG) of genes of Drosophila melanogaster Meigen are involved in developmental regulation through chromatin remodeling. Homologs of PcG genes have been identified in both plant and animal species. In this study, we detail the identification and characterization of Triticum enhancer of zeste 1 (Tez1), a homolog of...
Hatchery-reared salmonid fish routinely encounter stress due to
handling, barging, tagging, and overcrowding. It has been demonstrated that
there exists a direct correlation between stress and transient immune
suppression which can last for many days in fish. Epizootic viral infections
routinely appear in hatcheries and can have a devastating effect...
The objectives of this study were to 1) measure and compare the compositional differences of essential oil among three hop cultivars ('Centennial’, 'Citra' and 'Nelson Sauvin'), 2) identify the odor-active aroma compounds in three varieties of hops and 3) investigate the behavior of hop-derived aroma compounds in beers prepared by...
Maximum earthquake magnitude (m[subscript x]) is a critical parameter in seismic
hazard and risk analysis. However, some recent large earthquakes have shown that
most of the existing methods for estimating m[subscript x] are inadequate. Moreover, m[subscript x] itself is ill-defined because its meaning largely depends on the context, and it...
Published September 1962. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Deterioration of the flavor of sterilized concentrated milk (SCM)
is recognized as the principal limiting factor to commercial acceptance
of this product. Although a number of volatile compounds have
been identified in SCM, quantitative information on these compounds
is lacking. It is therefore difficult to ascertain the significance of
these...
The 3-cyclohexenyl carbinyl carbene species was formed by the
thermal decomposition of the p-toluenesulfonylhydrazone sodium
salt and by oxidation of the hydrazone. Several oxidizing agents
were studied. The products were investigated under aprotic and
protic conditions and at various temperatures. The diazocompound
was formed as an intermediate and found to...
The focus of this dissertation is the analysis of submesoscale and finescale features measured at oceanic fronts and the role they play in the transport of heat and salt. Two different geographical areas were used to analyze this transport: one, an area on the western side of the North Atlantic...
Keywords: Steve Strauss, Rick Strachan, Starker Forests, Wheeler Wood Composites Laboratory, Barbara Middleton, Joan Davies, Lisa Mattes, Larry Chapman, Iwan Ho, Jim WIlson, John Sessions, Brian Kramer, Mike Newton, Faye Stewart, Norma Erickson, Paul Adams, Gordan A. and Priscilla E. Duncan, Jim Trappe, Corey Arentz, Wang Zheng-Qi, Loran L. ("Stub")...
After 14 years, chloropicrin, Vapam and Vorlex continue to effectively
control internal decay of pressure-treated Douglas-fir
transmission poles, but 6 years after application of methylisothiocyanate
(MIT) some poles are becoming reinfested by decay fungi
although NIT residues remain high in these poles. The closed-tube
bioassay, developed through our research, is...
Bovine respiratory syncytial virus (BRSV), bovine viral diarrhea (BVD) and bovine parainfluenza virus Type 3 (BPI3) are ubiquitous respiratory pathogens of cattle, which contribute to causation of bovine respiratory disease complex. As these respiratory viral pathogens cause very similar clinical symptoms, differential diagnosis of the pathogens is required in one...
At weights of 81.5-90.5 kg, 187 prepuberal crossbred gilts were
subjected to specific environmental stimuli, for up to 17 days, to
determine which stimuli or combinations of various ones would initiate
onset of estrus in prepuberal gilts. The stimuli used were:
movement to new building, mixing or non-mixing of gilts,...
This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Coastal Education and Research Foundation (CERF) and can be found at: https://doi.org/10.2112/SI65-235.1
North America, with over 400 species of Astragalus (Fabaceae), is one of three major centers of diversity, all of which comprise the majority of the nearly 1750 species of Astragalus worldwide. One of the most diverse species, Astragalus lentiginosus of Section Diphysi, is a polymorphic complex of over 40 varieties,...
In the companion paper (Chen & Yeh, J. Fluid Mech., vol. 749, 2014, pp. 577–596), collisions of counter-propagating solitary waves were studied experimentally by analysing the measured water-surface variations. Here we study the flow fields associated with the collisions. With the resolved velocity data obtained in the laboratory, the flow...
Drosophila suzukii (Diptera: Drosophilidae) is an insect of global concern that causes serious damage to soft-skinned fruits. D. suzukii is widespread in North America, South America, Europe, and Asia and is listed as an invasive pest with strict quarantine protocols governing import and export. Given the damage caused by D....
The purposes of this study were to identify factors that
influence industrial education teachers to use computers in their
instruction and to explain the relationships among these factors.
For the purposes of this study, the term "to use computers" meant use
of computers in one or more of the following...
Numerous attempts have been made to identify the flavor
compounds in Blue cheese, however, duplication of Blue cheese
flavor has not yet been accomplished. Therefore, it was desirable
to make a qualitative and quantitative investigation of Blue
cheese flavor compounds and to study the effect of certain microorganisms
on Blue...
Blueberry pomace (BP) and cranberry pomace (CP) are good sources of dietary fiber and phenolics. This study aimed to develop berry fruit pomace-fortified specialty mustard with elevated bioactive compounds. Wet BP and CP were ground and incorporated into Dijon-style mustard at concentrations of 15, 20, and 25% (w/w). Total dietary...
A small eddy viscosity or mass diffusivity that varies with height has been found to have unexpected effects on the Kelvin-Helmholtz (KH) instability of a stably stratified shear layer near the neutral stability boundary. In particular, varying viscosity can increase the growth rate of the instability in contrast to the...
Treatment providers seek low-cost, high-impact means of engaging clients in care with the aim to enhance treatment delivery and outcomes. With improvements to mobile technology making cell phone accessibility and usage rates high across all socio-economic levels, text messaging is becoming more frequently utilized as a means of promoting provider-client...
There is significant interest in harnessing the biosynthetic capacities of photosynthetic diatom microalgae for the production of unique bioinspired nanomaterials. Specifically, this research focuses on understanding the photoluminescent properties of diatom biosilica and β-chitin nanofiber production in diatoms. Diatoms are single-celled microalgae that possess intricately patterned biosilica shells called, frustules....
As Turkey's cultural and economic climate has experienced dramatic shifts in accordance with its changing role in global society, a neo-Ottoman movement has taken root in recent years which can offer insight into the new Turkish identity. This sociopolitical movement captures a diverse set of cultural attributes through a contemporary...
This study examines two major issues: (1) to what extent have the
conditions at non-reservation Indian boarding schools, as described by
the Meriam Report of 1928, been in evidence from the beginning?; and
(2) to what extent have these conditions improved since 1928?
The conditions examined are: (1) General Conditions...
Over the past ten years there has been a dramatic
increase in the number of drug addicted teens in this
country. Accompanying this increase in drug usage of
adolescents has been an rise in the number of treatment and
evaluation centers to serve the adolescent drug abusing
population. Comprehensive and...
The Bureau of Labor Statistics cites construction as the most hazardous industry within the United States. The construction industry was responsible for 20% of all fatal occupational injuries in 2014. Approximately 20% of the construction injuries occur within Heavy Civil Engineering, in which there are 950,000 workers employed annually. This...
This novel-in-progress is an attempt to struggle with the complicated process of forging one’s identity in the murk of urban Northwest life. The protagonist of this piece is confused, to put it lightly: bi-racial, torn between the affections of divorced parents, unsure about his religious views, and baffled by his...
Muitiregion annular geometry is a basic feature of energy removal
systems ranging from advanced heat exchangers to fission reactor fuel
rods. For the symmetric cases, the heat conduction through annular regions
is well defined. However, for a shift of an annular region, analysis
of the system must be made in...
The purposes of this study were to investigate patterns and causes of weight loss among
elderly long-term care residents and to examine the relationship between weight changes
and the nursing home survival. The study was designed to accomplish five objectives: 1)
to examine the rate and degree of the first...
In 1906, applying Charles Darwin's evolutionary theories to the human race, Sir Francis Galton introduced the concept of eugenics, "the science of the improvement of the human race by better breeding." The rediscovery in 1900 of Mendel's laws of genetic inheritance and an upsurge in hereditarian thought set the stage...
The objective of this dissertation is to enhance the monitoring of forest ecosystems through the utilization of remotely sensed data to address the exigencies posed by the Anthropocene. On a global scale, rising temperatures and fluctuating precipitation patterns have strained forests and produced shifts in natural disturbance regimes. Additionally, the...
In recent years, many studies have focused on the molecular and biochemical mechanisms regulating the development of wine grapes. The course of grape berry development is directed by genetic design and is mediated by phytohormones, which regulate grape berry growth and development by orchestrating a complex network of interacting genes,...
Several approaches to interpreting the Cascadia paleoseismic record are
used to derive relationships between fault area, slip, and moment and to compare the
results with the scaling relationships determined by Somerville et al. (2015) for recent
subduction-zone events. In two models (CA12a and CA12b), taken from Goldfinger
et al. (2012),...
Full Text:
4, 23–44.
Goldfinger, C., C. H. Nelson, A. Morey, J. E. Johnson, J. Gutierrez-Pastor, A.
T
Music performance and education faced unique barriers during the COVID-19 global pandemic which made it nearly impossible to effectively implement online learning. To better understand these barriers and what improvements might be made during future pandemics that entail periods of isolation, I collected the oral histories of eight Oregon State...
A three-part algorithm is described and tested to provide robust bathymetry maps based solely on long time series observations of surface wave motions. The first phase consists of frequency-dependent characterization of the wave field in which dominant frequencies are estimated by Fourier transform while corresponding wave numbers are derived from...
Anomaly timescales for the last 90 million years, derived from
marine magnetic profiles and published prior to mid-1979, are summarized,
illustrated for comparison, and critically reviewed. A revised timescale
is constructed using calibration points which fix the ages of anomalies
2.3', 5.5, 24, and 29. An equation is presented for...
BACKGROUND: Triticum monococcum (2n) is a close ancestor of T. urartu, the A-genome progenitor of cultivated hexaploid
wheat, and is therefore a useful model for the study of components regulating photomorphogenesis in diploid wheat. In
order to develop genetic and genomic resources for such a study, we constructed genome-wide transcriptomes...
Full Text:
, ÖzkanH, Brandolini A, Schäfer-Pregl R, Martin W (2002) Genetics
and geography of wild cereal
Increasing interest has been shown in the irradiation sterilization
and irradiation pasteurization of foods, but problems of off-flavors
and odors are still unsolved, especially in the case of dairy products.
From the flavor chemistry point of view, milk lipids are very highly
susceptible to irradiation effects. Therefore, this investigation was...
A 22 ha, 1S yeas old, diked permanent pasture in the Salmon River estuary in Lincoln County, Oregon, was chosen for a study to determine the potential for natural salt marsh restoration with dike breaching. Two undiked fragments of relatively undisturbed salt marsh, one at each end of the study...
Bark plays a critical role in the life of a tree when it is standing. Once the tree is felled, however, bark has minimal value and
may be a net financial loss to the forest industry. Because of bark’s limited worth, logs are often bought and sold based on under...
The topics in this dissertation are centered around the way that trees respond to environmental stress in the climates where they occur. Though forests across the planet are expected to experience change in local climate due to historic and ongoing anthropogenic greenhouse gas emissions, the effects of climate change will...
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...