The studies described in this thesis were motivated by ongoing efforts to develop lignocellulosic biomass as an efficient and practical source of renewable energy. Enormous problems complicate these efforts to reduce reliance on greenhouse gas-generating fossil fuels. Simply obtaining the fermentable sugars available in the cellulose and hemicellulose components of...
The concept of construction industrialization, first raised in the 1960s, refers to the transfer of on-site construction work to an off-site factory to improve quality and reduce cost, time, and safety issues. In some countries, industrialization of construction projects is highly recommended and promoted by governments and local construction institutions...
Djang et al. [1998] introduced a new model of types for declarative visual programming languages (VPLs). Implicit static typing is used in their type model, in order to eliminate the programming mechanisms associated with type declarations, provide immediate visual feedback with respect to type errors and guarantee type safe programs....
In this dissertation, we address action segmentation in videos under limited supervision. The goal of action segmentation is to predict an action class for each frame of a video. The limited supervision means ground truth labels of video frames are not available in training. We focus on three types of...
Positively-charged gold nanoparticles (0.8-nm core diameter) reduced yeast
survival, but not growth, at a concentration of 10 to 100 μg/ml. Among 17 resistant
deletion mutants isolated in a genome-wide screen, highly significant enrichment
was observed for respiration-deficient mutants lacking genes encoding proteins
associated with the mitochondrion.
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. Boenzli,a Vihangi Hindagolla,a JunDing,a,b John M. Miller,c,d James E. Hutchison,c,d
Jeffrey A
Positively-charged gold nanoparticles (0.8-nm core diameter) reduced yeast
survival, but not growth, at a concentration of 10 to 100 μg/ml. Among 17 resistant
deletion mutants isolated in a genome-wide screen, highly significant enrichment
was observed for respiration-deficient mutants lacking genes encoding proteins
associated with the mitochondrion.
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mediating toxicity 2
3
Mark R. Smith1, Matthew G. Boenzli1, Vihangi Hindagolla1, Jun Ding1,2
Positively-charged gold nanoparticles (0.8-nm core diameter) reduced yeast
survival, but not growth, at a concentration of 10 to 100 μg/ml. Among 17 resistant
deletion mutants isolated in a genome-wide screen, highly significant enrichment
was observed for respiration-deficient mutants lacking genes encoding proteins
associated with the mitochondrion.
Positively-charged gold nanoparticles (0.8-nm core diameter) reduced yeast
survival, but not growth, at a concentration of 10 to 100 μg/ml. Among 17 resistant
deletion mutants isolated in a genome-wide screen, highly significant enrichment
was observed for respiration-deficient mutants lacking genes encoding proteins
associated with the mitochondrion.
Positively-charged gold nanoparticles (0.8-nm core diameter) reduced yeast
survival, but not growth, at a concentration of 10 to 100 μg/ml. Among 17 resistant
deletion mutants isolated in a genome-wide screen, highly significant enrichment
was observed for respiration-deficient mutants lacking genes encoding proteins
associated with the mitochondrion.
The delta O-18 signal preserved in paleoarchives is widely used to reconstruct past climate conditions. In many speleothems, this signal is classically interpreted via the amount effect. However, recent work has shown that precipitation delta O-18 (delta O-18(p)) is greatly influenced by convective processes distinct from precipitation amount, and new...
Porous silicon prepared by low-cost and scalable magnesiothermic reactions is a promising anode material for Li-ion batteries; yet, retaining good cycling stability for such materials in electrodes of practical loading remains a challenge. Here, we engineered the nanoporous silicon from a modified magnesiothermic reaction by controlled surface oxidization forming a...
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Areya, Wei Luob, Xiulei Jib,
Chongmin Wanga, Jun Liua,n, Ji-Guang Zhanga,n
aPacific Northwest National
An enantioselective 1,3-dipolar cycloaddition of 2-cyclo-hexene-1-one and azomethine ylide generated in situ from isatin and amino ester was developed by employing proline sulfonamide as the catalyst. Consequently, novel polycyclic spirooxindole scaffolds with three contiguous stereocenters were prepared in high yield (up to 95%) with excellent diastereo- (> 20:1 dr) and...
Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m...
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. Halsteda, Elliot S. Chonga, Jun Lub, Xingfeng Wanga,
Wei Luoa, Chih-Hung Changc, Youhai Wend, Shengqian Mae
Combined analyses of deep tow magnetic anomalies and International Ocean Discovery Program Expedition 349 cores show that initial seafloor spreading started around 33 Ma in the northeastern South China Sea (SCS), but varied slightly by 1-2 Myr along the northern continent-ocean boundary (COB). A southward ridge jump of ∼20 km...
The western United States has experienced large-scale degradation due to land use and land cover changes, invasion of annual grasses, and expansion of woody plants into grass and shrublands and the resultant altered fire regimes. These landscape-scale changes have coincided with declining mule deer (Odocoileus hemionus) populations, making habitat loss...
Lifestyle factors are responsible for a considerable portion of cancer incidence worldwide, but credible estimates from the World Health Organization and the International Agency for Research on Cancer (IARC) suggest that the fraction of cancers attributable to toxic environmental exposures is between 7% and 19%. To explore the hypothesis that...
Vocalizations of Indo-Pacific humpback dolphins (Sousa chinensis) in west Hong Kong waters were described from 12 recordings in 2010. A broadband hydrophone system recorded sounds. Vocalizations were characterized as broadband click trains, burst pulses, and narrowband frequency modulated sounds, including whistles generally similar to those of some other delphinid cetaceans....
Lignocellulosic biomass represents a vast and renewable source of fermentable sugar for
production of biofuels. However, native lignocellulose—comprised of cellulose,
hemicellulose and lignin—is refractory to degradation because the crystalline cellulose is
not easily hydrolyzed by cellulases. Standard chemical treatments of lignocellulose to
reduce the crystallinity of cellulose prior to enzymatic...
Using in-situ synchrotron X-ray scattering, we show that the structural evolution of various bulk metallic glass-forming liquids can be quantitatively connected to their viscosity behavior in the supercooled liquid near T[subscript g]. The structural signature of fragility is identified as the temperature dependence of local dilatation on distinct key atomic...
Published June 1969. 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
Bismuth oxide thin films were deposited by atomic layer deposition using Bi(OCMe₂ [superscript i]Pr)₃ and H₂O
at deposition temperatures between 90 and 270°C on Si₃N₄, TaN, and TiN substrates. Films were
analyzed using spectroscopic ellipsometry, x-ray diffraction, x-ray reflectivity, high-resolution
transmission electron microscopy, and Rutherford backscattering spectrometry. Bi₂O₃ films
deposited...
The electrical grid is a key component of the Nation's critical infrastructure. Its continuous and reliable operation is of vital importance; any system-wide disruption would have a debilitating impact on crucial services, public health and safety, the economy, and the national security of the United States.
High-impact low-frequency events pose...
This comprehensive bibliography is collection of refereed research related to climate change, wetlands and wetland restoration published before January 1, 2008.
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): 115-133. JUN 2002.
Briones, M.J.I., Ineson, P. & Piearce, T.G. Effects of climate change on soil
Reports, both anecdotal and empirical, indicate a rise in anti-Asian sentiments, including hate crimes, since the beginning of the COVID-19 pandemic. The increase of such discrimination and hate may be attributed to negative perceptions of the origins of the COVID-19 virus. During the pandemic, the use of stigmatizing language, such...
Published April 1941. 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
Artificial lipid bilayer technologies are effective models for studying cell membrane properties. Droplet bilayers rely on microfluidics and provide advantages over other bilayer methods due to their compatibility with automated development systems that increase yield while minimizing cost. This paper describes the implementation of bilayer technologies using membrane protein channels...
The finite difference time domain (FDTD) method was used to model anti-reflective properties of a variety of sub-wavelength structures for 300 to 1300 nm input light. Light hitting non-tapered nanostructures exhibited interference patterns similar to thin film anti-reflective coatings (ARCs), increasing the anti-reflective effect at several wavelengths. The lowest reflectance...
Several studies of herbaceous perennials have addressed the effects of environmental factors during and after production, inherent cold hardiness, and post-harvest handling procedures to enhance flowering and growth during establishment. The regrowth of both woody and herbaceous forage plants following establishment is reported to be directly related to reserve-nitrogen content....
To determine the invasion threat to the NE Pacific of marine algae arriving on Japanese debris from the 2011 Great Tōhoku Earthquake and Tsunami, my colleagues and I identified the algal species on 42 of the most heavily fouled debris items that landed on the shores of Oregon and Washington...
Aerobic organisms have evolved many sensory mechanisms that allow
response to oxidants in the environment. One area of interest is the relationship
between the activity of the tumor suppressor protein p53 and the redox state of
thioredoxin. Human p53 activity is severely compromised in budding yeast lacking
thioredoxin reductase. Evidence...
Anomaly detection aims at detecting the points that appear different than the majority of the data, such that they are suspected to be generated from a different distribution. Anomaly detectors have been applied in many different fields, such as detecting fraudulent behaviors in bank transaction, finding broken sensors in a...
This tutorial discusses one of the oldest problems in computing: how to search and retrieve keyed information from a list in the least amount of time. Hashing - a technique that mathematically converts a key into a storage address - is one of the best methods of finding and retrieving...
Subhorizontal lake shorelines allow a geodynamic test of the size and extent of a hypothesized paleolake in central Tibet, the East Qiangtang Lake (EQL), during the last interglacial period (marine isotope stage (MIS) 5e). Reconstructions based on relict lake deposits suggest that the EQL would have been ~400 m deep...
Nearly 80% of solid tumors, such as melanoma, metastasize via the lymphatic system. The most common form of melanoma is BRAF-mutant melanoma, and additional mutations, such as a PTEN mutation in the PI3K pathway, is required for metastases to occur. Standard therapy includes treatment with small molecules dabrafenib (DAB) and...
Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are polyunsaturated fatty acids required for proper embryonic development, specifically neurodevelopment. However, little is known regarding their conversion to other metabolites during embryogenesis. The oxidation of ARA gives rise to the biologically active eicosanoids and the oxidation of DHA gives rise to the...
Catch share systems are being encouraged and considered in a variety of United States (U.S.) fisheries. Scientists, policy makers, and stakeholders (including fishermen and non-governmental environmental organizations) have different views about potential social and economic impacts and outcomes of these output- oriented systems. Thus identifying and evaluating impacts over time...
As the link between human microbiomes and health has become more established, the interest in applying statistical approaches to microbiome data to understand the mechanisms behind these links has grown. However, microbiome data is often of unmanageable size, and consequently, producing quality lower dimensional representations of samples is a significant...
Background: Relative to heterosexual youth, sexual minority youth exhibit increased substance use. Risk for polysubstance use, which magnifies drug-related harms, remains largely unexamined for sexual minority youth. This investigation used a nationally-representative dataset to compare polysubstance use patterns between sexual minority and heterosexual youth.
Methods: The cross-sectional 2015 CDC's Youth...
The connectivity among straits of the northwest Pacific marginal seas is investigated with a primitive-equation ocean circulation model simulated for 10 years from 1994 to 2003. Over the simulation interval the temporal and spatial means and variations of the model sea surface temperature are comparable to those of the satellite...
Platelets undergo morphological changes essential to hemostasis upon activation at sites of vascular injury. The Rho GTPases Rac1, Cdc42, and RhoA drive these changes. Rho guanine nucleotide dissociation inhibitors (RhoGDIs) bind to the Rho GTPases to block the GDP from dissociating from the Rho GTPases, as well as anchoring the...
Daikon, mizuna, mizspoona, and komatsuna are novel Asian vegetables for which a market exists in Oregon, especially in the organic sector. However, these crops are currently not grown widely in the area, despite the favorable growing environment of Oregon’s Willamette Valley. Little is known about the appropriate application level of...
The growing contamination of surface water by stormwater runoff parallels increasing urban development. Heavy metals, polycyclic aromatic hydrocarbons (PAHs), persistent organic pollutants (POPs), and contaminants of emerging concern (CECs) are discharged from point sources and washed from impervious surfaces into surface waters, impacting the ecology of these systems, food supplies,...
The aim of this work is to review current knowledge relating the established cancer hallmark, sustained cell proliferation
to the existence of chemicals present as low dose mixtures in the environment. Normal cell proliferation is under tight
control, i.e. cells respond to a signal to proliferate, and although most cells...
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that are characterized
by a basic leucine-zipper region. It comprises members of the
Jun protein
Exotic ponderosa pine (Pinus ponderosa Doug. ex Lawson) plantations are being planted within the natural distribution area of cordilleran cypress (Austrocedrus chilensis (D.Don) Pic. Ser. et Bizzarri) in Patagonia, Argentina. The productivity of these exotic plantations is much greater than that of native forests, suggesting greater water use. Before these...
In recent years, SAR ADCs have been shown to acheive faster conversion times and improved power efficiencies due to their simple building blocks that are digital in nature and scale favorably with technology. High resolution ADCs with stringent noise requirement has led to the adoption of hybrid ADC architectures such...
The primary goal of my study was to evaluate the effects of high dietary vitamin E on the rodent skeleton. The outcomes from my study assess the impact of high intakes of vitamin E and increased concentrations of its metabolite, carboxy ethyl hydroxy chromanol (CEHC), on bone turnover and skeletal...