The western spotted cucumber beetle (Diabrotica undecimpunctata
undecimpunctata) and the western striped cucumber beetle (Acalymma trivittatum) are
pests of many crops, including vegetable, fruit, and nursery crops. Pesticides are
commonly used to control this pest. Trap and kill technologies are under development as
use in an alternative control for cucumber...
This study tested natural products from cyanobacteria from the Red Sea in Egypt and marine tunicates from the Algoa Bay in South Africa. Products from marine organisms have been used as lead compounds for the synthesis of new drugs because of their biological activity mechanism. Specifically, these products may contain...
Many Gram-negative bacteria use a type III secretion system (TTSS) to establish a relationship with a host. Pathogens can use the secretion system as a way to deliver proteins known as type III effectors (TTEs) into a host cell and block host defense. The variation and redundancy of the type...
Epidermal RNA samples from FVB/N mice treated with PAH standards and
environmental PAH mixtures were harvested and purified using Trizol extraction and
RNeasy mini prep kit purification. Epidermal RNA integrity was low (RIN mean 3.5),
indicating significant RNA degradation and the need to modify handling, collection, and
processing of skin...
The rate of melanoma among Asian American has been steadily increasing in the past
five years, while in other Asian countries, such as Japan, the incident rate remains relatively the
same. Does the culture and societal attitudes toward skin cancer make a difference in the incident
rate of melanoma? This...
The toxicity of a group of oxygenated polycyclic aromatic hydrocarbons (OPAHs) was investigated using embryonic zebrafish. An immediate goal was to determine the relative toxicity of these compounds and to explore the toxicity mechanisms. It is thought that some OPAHs cause toxicity by binding and activating the aryl hydrocarbon receptor...
The ritualized courtship of the Red-legged salamander, Plethodon shermani, has been studied extensively. Males and females possess brightly colored red legs, but little is known about the implications of this coloration on mate choice. An alternative hypothesis is that coloration may be used as a warning signal to predators. Animals...
BACKGROUND: Oregon produces 99% of the hazelnuts grown in the United States. The key pest threatening commercial hazelnut orchards in Oregon is Cydia latiferreana (Tortricidae), filbertworm moth (FBW). Currently, most growers control FBW with one to two applications of esfenvalerate (Asana XL), a broad spectrum pyrethroid. Pheromone mating disruption is...
Evidence-based interventions are considered to be the most successful interventions used in public health. They have the research to support their potential success when implemented by an organization. Evidence-based interventions are created and tested, then are implemented by a variety of organizations in various geographic locations, including non-profit organizations, public...
This item is a powerpoint presentation of an HHMI research project conducted during the summer of 2011 by Kyle Ireton, in partnership with Dr. Fredrick Stormshak. The objective of this study was to identify whether the myristoylated alanine-rich c kinase substrate (MARCKS) protein is phosphorylated in vivo, in response to...
This project calculates the melting temperature as a function of pressure for a system defined by the Lennard-Jones 12-6 potential using molecular dynamic simulations. In a single atomistic simulation, the initial conditions are manipulated such that both a liquid and solid phase exist when thermal equilibrium is reached. Phase coexistence...
The neutron capture cross sections of ¹⁰⁶Cd, ¹⁰⁸Cd, ¹¹⁰Cd, ¹¹²Cd, ¹¹⁴Cd and ¹¹⁶Cd were determined in the present project. Four different OSU TRIGA reactor facilities were used to produce redundancy in the results and to measure the thermal cross section and resonance integral separately. When the present values were compared...
OVERVIEW OF INTRODUCTION - This is a combined thesis for both disciplines of BioResource Research (BRR)Interdisciplinary and International Degree (ID) Programs OSU. The first chapter encompasses the BRR research, which is a preliminary study utilizing immunohistochemical method to characterize melanomas in bigenic mice with activated Cdk4 protein and Retinoid-X-Receptor α...
ABSTRACT
Wetlands are considered critically important in the delivery of ecosystem services such as water quality improvement, flood protection, and conservation of native biodiversity. A common measure of the effectiveness of these ecosystem services is denitrification, an anaerobic microbial process that converts nitrate (NO3-), a common water pollutant, into dinitrogen...
Understanding the mechanisms through which stem cells self-renew is important for the development of new therapies to repair and restore damaged tissue. This research explores possible mechanisms of telomere mimic action and seeks to validate a new assay for evaluating telomere binding antagonists and studying the effects of telomere binding...
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a potent immunosuppressant and a prototypic ligand for the aryl hydrocarbon receptor (AhR). In a graft versus host (GvH) response, treatment with TCDD suppresses a cytotoxic T-lymphocyte (CTL) response by Day 10, concurrent with a T-regulatory (Treg) like phenotype in the donor CD4+ T-cells, observed on Day...
Recalcitrance to transformation makes genetic engineering of many valuable plants infeasible for practical use. Transitory host modification during transformation using transgenes offers a possible means of overcoming this obstacle. In prior work in our laboratory, the genes GA20ox7 and EBB1 were found to increase regeneration in vitro. In this project,...
An apparatus and method for calibrating planar laser induced fluorescence using a two-dye, two-color method was developed. A laser sheet was expanded from a 473 nm laser to excite dye solutions into higher energy states then fluoresced through spontaneous emission. The two fluorescent dyes selected for research and development were...