Index Catalog // ScholarsArchive@OSU

The marine geomorphology of American Samoa : shapes and distributions of deep sea volcanics

Creator:: Roberts, Jed T.
Abstract:: The geologic processes at work in American Samoa have long been a point of scientific debate. Of its numerous volcanic formations, few breach sea level, leaving an enormous proportion of their mass unavailable to traditional observation. This study aims to describe the deep sea geomorphology of American Samoa through compilation,...
Resource Type:: Masters Thesis
Full Text:: Trench, Mimi Dailey, Melissa Brazeale, Nate Shaub, Wiley Thompson, Sarah Mikulak, Celeste Barthel, Kyle

High-Throughput Sequencing of Arabidopsis microRNAs : Evidence for Frequent Birth and Death of MIRNA Genes

Creator:: Fahlgren, Noah, Howell, Miya D., Kasschau, Kristin D., Sullivan, Christopher M., Cumbie, Jason S., Givan, Scott A., Law, Theresa F., Grant, Sarah R., Dangl, Jeffrey L., and Carrington, James C.
Abstract:: In plants, microRNAs (miRNAs) comprise one of two classes of small RNAs that function primarily as negative regulators at the posttranscriptional level. Several MIRNA genes in the plant kingdom are ancient, with conservation extending between angiosperms and the mosses, whereas many others are more recently evolved. Here, we use deep...
Resource Type:: Article
Full Text:: . Law3, Sarah R. Grant3, Jeffery L. Dangl3, James C. Carrington1* 1 Center for Genome Research and

Evaluation of phylloxera-resistant rootstocks for the cultivars Pinot noir, Chardonnay, Pinot gris and Merlot

Creator:: Shaffer, Ray and Candolfi-Vasconcelos, M. Carmo
Abstract:: Vineyard acreage in Oregon continues to increase at a rapid pace. In the past two years alone 1600 acres of new vineyard land have been planted (Rowley et al., 2000). Much of this has been on phylloxera-resistant rootstocks. This practice is strongly encouraged, since it is the only practical way...
Resource Type:: Technical Report
Full Text:: prunings. The effect of rootstock on the Ravaz index varied with variety (Table 2C). Values for Merlot

Effects of estuarine circulation patterns and stress on the migratory behavior of juvenile salmonids (Oncorhynchus sp.)

Creator:: Truelove, Nathan Kobun
Abstract:: For the first objective of this thesis, we attempt to understand the role of water flow and directionality in determining steelhead (Oncorhynchus mykiss) and spring/summer and fall Chinook (O. tschawytscha) migration patterns within the Columbia River Estuary and plume by integrating recent advances in biotelemetry and environmental observation and forecasting...
Resource Type:: Masters Thesis
Full Text:: field. I especially thank Sarah Lobser, Charles Seaton, Dr. Arun Chawla, Dr. Hans Luh, Dr. Phil

The effect of chronic exposure of chinook salmon to benzo(a)pyrene and cortisol of CYP1A1 induction and susceptibility to a microsporidian parasite, Loma salmonae

Creator:: Marie, Amarisa
Abstract:: Wild populations of fish are faced with a multitude of stressors, which may include human interaction, toxins, and disease. Benzo(a)pyrene (BaP), a known carcinogen and immunotoxin, has been reported in the stomach contents of juvenile chinook salmon, Oncorhynchus tshawytscha, in urban waterways. We investigated the impact of chronic dietary exposure...
Resource Type:: Masters Thesis
Full Text:: Campbell, Sarah Lupes, Adam Schwindt, Elaina Snyder, Nathan Truelove, and Denay Tubbs for their assistance

Genome-Wide Profiling and Analysis of Arabidopsis siRNAs

Creator:: Kasschau, Kristin D., Fahlgren, Noah, Chapman, Elisabeth J., Sullivan, Christopher M., Cumbie, Jason S., Givan, Scott A., and Carrington, James C.
Abstract:: Eukaryotes contain a diversified set of small RNA-guided pathways that control genes, repeated sequences, and viruses at the transcriptional and posttranscriptional levels. Genome-wide profiles and analyses of small RNAs, particularly the large class of 24-nucleotide (nt) short interfering RNAs (siRNAs), were done for wild-type Arabidopsis thaliana and silencing pathway mutants...
Resource Type:: Article
Full Text:: each chromosome in the rdr2 mutant (Figure 2C). A comparable underrepresentation pattern was not

Methane sources, distributions, and fluxes from vent sites at Hydrate Ridge, Cascadia Margin

Creator:: Heeschen, Katja U., Collier, Robert W., de Angelis, Marie A., Suess, Erwin, Rehder, Gregor, Linke, Peter, and Klinkhammer, Gary P.
Abstract:: To constrain the fluxes of methane (CH4) in the water column above the accretionary wedge along the Cascadia continental margin, we measured methane and its stable carbon isotope signature (δ¹³C-CH₄). The studies focused on Hydrate Ridge (HR), where venting occurs in the presence of gas-hydrate-bearing sediments. The vent CH₄ has...
Resource Type:: Article
Full Text:: time and space (Figures 2a–2c). The highest CH4 concentrations were usually confined to thin layers

Preventing crown gall disease using oncogene silencing or VirE1-expressing transgenics

Creator:: Humann, Jodi L.
Abstract:: Crown gall disease is caused by the ubiquitous soil bacterium Agrobacterium tumefaciens which transfers a portion if DNA (T-DNA) into the plant cell. Preventing infection by using the biocontrol strain Agrobacterium radiobacter K84 is currently the only defense for crown gall. Two different resistance strategies were examined in this work....
Resource Type:: Dissertation
Full Text:: AUTHORS In chapter 2, Sarah Andrews constructed the plant transformation vectors and generated the

Design of low power 2.4GHz CMOS LC balanced oscillators with low phase noise and large tuning range

Creator:: Seshan, Nilakantan
Abstract:: The design of two 2.4GHz CMOS LC balanced oscillators in the 0.25μm National BiCMOS process for Bluetooth specifications is presented. These oscillators achieve low phase noise with low power consumption. At a frequency offset of 500KHz from the 2.11GHz carrier, the measured phase noise is -101.9dBc/Hz for the NMOS oscillator...
Resource Type:: Masters Thesis
Full Text:: the United States. I also thank Ferne Simendinger and Sarah O'Leary for all their help and co

Effects of wildfire on growth and demographics of coastal cutthroat trout in headwater streams

Creator:: Heck, Michael P.
Abstract:: Wildfire is a largely terrestrial perturbation broadly recognized as an agent of disturbance and ecological change in forested biomes. Effects of post-fire conditions on biotic components of aquatic systems have been less well-documented, although hypothetically, the two are strongly connected. In fact, the influence of wildfire may be most profound...
Resource Type:: Masters Thesis
Full Text:: Johnson, Dan Jones, Sarah Lampson, Evan Leonetti, Joe Naughton, Hannah Paden, Mark Raggon, Jeremy

ScholarsArchive@OSU

The marine geomorphology of American Samoa : shapes and distributions of deep sea volcanics

High-Throughput Sequencing of Arabidopsis microRNAs : Evidence for Frequent Birth and Death of MIRNA Genes

Evaluation of phylloxera-resistant rootstocks for the cultivars Pinot noir, Chardonnay, Pinot gris and Merlot

Effects of estuarine circulation patterns and stress on the migratory behavior of juvenile salmonids (Oncorhynchus sp.)

The effect of chronic exposure of chinook salmon to benzo(a)pyrene and cortisol of CYP1A1 induction and susceptibility to a microsporidian parasite, Loma salmonae

Genome-Wide Profiling and Analysis of Arabidopsis siRNAs

Methane sources, distributions, and fluxes from vent sites at Hydrate Ridge, Cascadia Margin

Preventing crown gall disease using oncogene silencing or VirE1-expressing transgenics

Design of low power 2.4GHz CMOS LC balanced oscillators with low phase noise and large tuning range

Effects of wildfire on growth and demographics of coastal cutthroat trout in headwater streams

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