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Now showing items 81-100 of 101
The role of the brassinosteroid associated kinase (BAK1) in plant cell defense [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Plants are able to resist bacterial and fungal infection by recognizing invading organisms outside the cell and then activating defense responses inside the cell. The first line of defense against invading organisms is ...
An estrogen induced, estrogen responsive rat model of breast cancer [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Because women experience a bewildering array of chemicals, foods and lifestyles, only profound effects on preventing or promoting breast cancer are detectible in human studies. Subtle or delayed effects can be detected in ...
Methane adsorption in nanoporous activated carbon [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Natural gas is an economically and environmentally superior fuel to both gasoline and diesel. One challenge of this fuel is to find a high-capacity, low pressure method of storing it. Fractal networks of nanopores in ...
QTL mapping of suppressor of plant blotching1, modifiers of an epiallele [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Pl1-Blotched is an epigenetically regulated allele (an epiallele) of the purple plant1 gene, which activates synthesis of purple anthocyanin pigments. We identified a modifier called Suppressor of plant blotching 1 (Spb1), ...
Public perceptions of the environment: The role of mass media [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
This project examines the relationship between television news coverage of environmental issues and variations in public concern for the natural environment in the United States. Aggregate-level, time series data (GSS; ...
Role of Cyclooxygenase-1 during the immunological response in lyme arthritis [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Previously, pharmacological inhibition of COX-1 in wild-type C3H mice resulted in changes in antibody production in response to infection with the causative agent of Lyme Disease, the spirochete Borrelia burgdorferi (Bb). ...
Hormonal contraceptive use increases serum 25-hydroxyvitamin D concentrations in active, young women [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Many studies have shown that the estrogen in oral hormonal contraceptives (HC) increases serum 25-hydroxyvitamin D 25(OH)D concentrations in women. As a hormone that regulates gene transcription estrogen is known to increase ...
Genetic variation associated with adaptive traits in the African forest (Loxodonta cyclotis) and savanna elephant (L. africana) [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
There are two species of African elephant, the forest (Loxodonta cyclotis) and savanna elephant (L. africana). The savanna elephant is believed to have diverged from the forest species approximately 2.6 million years ago. ...
Water flow sensor for eldercare [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Changes in hygiene habits can be an early indicator of mental and/or physical decline in elders. Since personal hygiene activity accounts for much of the water use in a home, and since much of this activity happens in ...
The effect of aldosterone on fatty acid oxidation in HepG2 cells [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
The HepG2 cell line is an immorilized cell line harvested from a human hepatocellular carcinoma. This study is designed to investigate the affect of aldosterone on the mitochondrial function, specifically fatty acid ...
Natural variation in phenotypes associated with phototropins among geographically isolated populations of Arabidopsis thaliana [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
In Arabidopsis thaliana several phenotypes are controlled by blue light including chloroplast relocation movements and bending of the seedling stem in phototropism. These responses are controlled by the phototropins, phot1 ...
Effects of maternal diet on offspring in terms of behavior and overall health [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Polyunsaturated fatty acids have been touted to affect mammalian health and fecundity. Since stressed rodents tend to produce a surfeit of female pups, we studied the effects of these diets on female offspring behavior. ...
Rapid automated characterization of transposon insertion mutants in Desulfovibrio vulgaris Hildenborough by srnPCR [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
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 (Fig. 2). When the insertion ...
The salience of novel words in speech directed to young children [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
When children begin to learn vocabulary, they tend to learn more nouns than verbs (Goldfield, 1982; Nelson, 1973). Several explanations for this noun bias have been offered. One possibility is that the way nouns are used ...
Effect of experimental forest treatments on gray treefrog (Hyla versicolor) habitat use [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Amphibian use of modified habitats has recently received more attention due to anthropogenic land-use patterns and the continued decline of species. We examined habitat use and abundance of gray treefrogs (Hyla versicolor) ...
Target test tube assembly process and design for the development of molybdenum-99 [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Molybdenum-99 (Mo-99) is used to create Tc-99m, a widely used nuclear medicine diagnostic imaging radioisotope. In an attempt to decrease the need for imported Mo-99, development of mechanical systems to efficiently prepare ...
Characterizing the role of Glycine max NHL gene family members in plant-nematode interactions [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Soybean cyst nematode (SCN; Heterodera glycines) is a microscopic parasitic roundworm of soybean that causes nearly $1 billion dollars in annual yield loss in the United States. SCN damages the plant by attaching itself ...
Comparison of the progression of glomerulosclerosis between Oim-C57BL/6 and Oim-B6C3Fe a/a [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Osteogenesis Imperfecta (OI), a heritable connective tissue disorder, resulting from mutations in the type I procollagen genes is characterized by bone deformity and fragility. The OI mouse model (oim) is homozygous for a ...
Sigma receptor binding in normal mouse lung membranes [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
The brain and many peripheral tissues (e.g., heart, spleen and liver) express sigma receptors that have been characterized by radioligand binding studies in vitro. In vivo studies indicate that sigma receptors are expressed ...
Novel inhibition mechanism and potent antiviral activity of translocation-deficient reverse transcriptase inhibitors [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Nucleoside RT inhibitors (NRTIs) are among the most potent anti-HIV agents and act as chain terminators because they lack a 3'OH. However, this feature can reduce affinity for RT compared to the analogous dNTP substrate, ...