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Now showing items 81-100 of 688
Reconstituting the Cvt pathway in pichia pastoris [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
In yeast, autophagy is primarily a response to nutritional stress in which the cell sacrifices some of its cytoplasm and organelles in order to survive. Saccharomyces cerevisiae contains a specialized pathway for the ...
Bioprinting: Development of a novel approach for engineering three-dimensional tissue structures [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Bioprinting is a tissue engineering technique in which spherical cell aggregates, the "bio-ink", are deposited into biocompatible hydrogels, the "bio-paper", by a 3-axis "bio-printer". The aggregates can be deposited into ...
Hysteresis and dither in a metering poppet valve [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
The objective of the following thesis is to reduce the hysteresis of a hydraulic flow control valve through the use of dither. A hydraulic valve system, used in controlling the valve and collecting and converting the ...
Optical imaging and development of human cancers in mouse models [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Non-invasive real-time in vivo imaging of tumor growth and metastasis in small animals is becoming popular because more traditional methods of imaging, such as x-ray, magnetic resonance imaging, and single photon emission ...
The effect of robotic gait assisted therapy on function in patients with stroke [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
The purpose of this study was to determine whether robotic gait-assisted training would improve function and mobility in patients suffering from stroke. The AutoAmbulatorTM (HealthSouth, Inc.) is a patented orthotic device ...
A human relevant rat model of breast cancer [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Estrogen receptor (ER) status is an important prognostic factor of human breast cancer. ER+ breast cancers, which make up 95% of human breast cancers, have a good prognosis because the growth of these tumors is dependent ...
Lick Creek conservation area management plan [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
The Missouri Department of Conservation (MDC) has contracted fifteen-University of Missouri students, specializing in Soils, Fisheries, Wildlife, Forestry, and Parks, Recreation and Tourism, to create a management plan for ...
Finite element modeling of the intervertebral disc [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
The objective is to create an accurate finite element model of the intervertebral disc. Major deficiencies in current models are due to oversimplifications in regards to geometry and material properties. My task is to ...
Nonlinear and dynamic modeling of stainless steel strands using artificial neural networks [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
In this study, artificial neural networks (ANNs) are used to model a collection of acoustic signals that propagate down a stainless steel strand embedded in concrete. The study of acoustic signals in stainless steel strands ...
MCP-1 and its role in macrophage recruitment in Lyme carditis [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Lyme disease is caused by infection with the bacteria Borrelia burgdorferi, causing arthritis and carditis in infected animals. The presence of spirochetes in the heart tissue induces recruitment of leukocytes to the area ...
Improved mounting device for augmentative communication [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
For people without both mobility and speech capability, communication can be difficult. The Assistive Technology Evaluation Center at the University of Missouri—Columbia strives to help people find an effective way to ...
Psychological aspects of exercise among females with eating disorders: Comparing active versus recovered cases [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Exercise as a means to control weight is common among individuals with eating disorders. This study will examine the connection between exercise and eating disorder status by comparing a sample of active versus recovered ...
Effects of boron and light treatments on the ascorbate concentration of alfalfa sprouts [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Alfalfa (Medicago sativa) sprouts are an inexpensive, year-round source of fresh produce. Consumption of sprouts could be further advocated if their nutritional benefits were improved. The purpose of this study was to ...
Characterization of transposon insertion mutants in desulfovibrio vulgaris hilderborough by sequencing genomic DNA [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Tn5 transposon mutagenesis occurs by a mechanism in which a segment of DNA (transposon) encoded in a plasmid is inserted into genomic DNA (the target) by a conservative (cut-and-paste) mechanism. When the insertion position ...
Fine-structure QTL mapping of suppressor of plant blotching1 in maize [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
1,500-individual F2 population to achieve greater resolution for pin-pointing the position of the Spb1 loci. Our eventual goal is to clone the Spb1 genes using a map-based cloning strategy. Then we will be able to study in detail how Spb1...
Differential in-gel electrophoresis (DIGE): The key to finding the 4936 factor? [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
There are many species of plants that do not accept their own or closely related pollen. This self-incompatibility (SI), is seen in members of the genus Nicotiana. There are three proteins that are known to be required for ...
Artificial selection on genes for epigenetic regulation in maize [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Maize (corn) was domesticated from teosinte through a single domestication event in Mexico about nine thousand years ago. This domestication brought about the original landrace maize varieties that were spread though out ...
Altered nuclear gene expression in response to mitochondrial mutations in maize [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Maize non-chromosomal stripe (NCS) plants are defective plants with mutations within mitochondrial DNA (mtDNA) resulting in deficiencies in the electron transfer chain (ETC). It has been shown the cells will synthesize ...
Production and optimization of 198/199 gold nanoparticles for potential use in cancer therapy [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Radiopharmaceuticals are used to diagnose and treat a number of diseases such as bone cancer and non-Hodgkin's lymphoma. A radiopharmaceutical typically consists of a targeting molecule that selectively targets certain ...
Design of an Automatic System for the University of Missouri Research Reactor's (MURR) Small Diameter Pneumatic-Tube (P-Tube) System [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
The nuclear research facility at the University of Missouri-Columbia (MURR) has proposed a redesign of the process for irradiating the samples with INAA (Instrumental Neutron Activation Analysis) in order to increase efficiency (sample throughput...