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Now showing items 61-80 of 1482
Turnover of neotropical migrant birds in eleven year old clear cuts during July
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Capture and release of birds via mist net and banding techniques has proven to be one of the best way to census turnover or persistence of birds during migration, breeding, and post-breeding seasons. Our study looked at ...
A novel filler for increased strength of polymer based composites for dental restorations [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Current dental composites consist of a polymer resin and micro-sized glass particles which are used as a filler material. These particles help reinforce the composite during the compressive loads created by the chewing ...
Study of auxin responsive gene promoters in transient expression assays
(University of Missouri--Columbia. Office of Undergraduate Research, 2004)
Transfection assays are an important tool for biochemists; the comparatively quick technique allows experimenters to see relative levels of expression of a particular gene in the presence or absence of a plant hormone ...
Neonatal exposure to xenobiotic estrogen may alter the adult immune response and exacerbate endometriosis in mice [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Endometriosis is a common medical condition affecting 5-10% of women worldwide and often results in severe cramps, pelvic pain, and infertility. The condition occurs when endometrial tissue, which escapes into the peritoneal ...
Development of a stably transfected cell line to screen for potential endocrine disrupting chemicals [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Intro Estrogens are steroid hormones that diffuse across cell membranes to interact with estrogen receptors (ER) in the nucleus. An estrogen-bound ER acts as a transcription factor to regulate gene transcription in a cell. ...
Circular and linear mitochondrial genomes in cytoplasmic male sterile maize [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Cytoplasmic male sterility (CMS) is a maternally inherited condition in which a plant has an inability to produce viable pollen. It is usually due to the production of a toxic chimeric protein within the mitochondria during ...
Testing the neural locus of affective priming effects [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
Research has consistently shown that participants are faster to categorize the valence (positivity or negativity) of an affective target when it is preceded by a stimulus (prime) that shares its valence compared to one ...
The inhibition effect of phage display peptides on E. coli 0157:H7
(University of Missouri--Columbia. Office of Undergraduate Research, 2004)
E. coli 0157: H7 strain is a strong food borne pathogen that lives in the cattle GI tract. It has been estimated that 76 million or more food borne illness occurs in the United States every year. In the last few years, ...
What teachers should know: Comparison of 4th grade mathematics in Hong Kong and the U.S. [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
The purpose of this study was to compare 4th grade mathematics teacher in Hong Kong and United States responses to teacher readiness, professional development and participation and overall teacher satisfaction. Data was ...
How caloric restriction extends life
(University of Missouri--Columbia. Office of Undergraduate Research, 2004)
People have always wanted to know how to live longer lives. Researchers have found that caloric restriction allows this in most animals. Caloric restriction (CR) is defined as the restriction of food but still enough to ...
Effect of assumptions by pre-service teachers concerning family life, extracurricular involvement and socioeconomic status [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
The state of Missouri wants to produce highly qualified educators in order to facilitate high performing students; because of this it is vital that pre-service teachers alter their expectation in order to maintain high ...
Evaluating the relationship between leaf nitrogen concentration and Minolta SPAD-502 meter readings [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Oak trees are deciduous trees that can live for up to 200 years and face a variety of environmental stresses. Like all plants, oak trees need nutrients, which vary under different stress conditions. We study nitrogen as ...
Improving mouse-DMH screening capability by adding 2000 mouse CpG islands
(University of Missouri--Columbia. Office of Undergraduate Research, 2004)
DNA methylation alteration, in correlation with gene expression, is involved in development and progression of many cancers. Using a microarray based method, mouse-DMH (Differential Methylation Hybridization), our lab is ...
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 ...
Spermatid specific thioredoxin (SPTRX3) as a novel human male infertility marker [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Spermatid Specific Thioredoxin (SPTRX3) is a protein that accumulates in the superfluous cytoplasm of defective human spermatozoa. We researched the relationship between SPTRX3 and male infertility in men from 239 couples ...
Dengue RdRp characterization [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Dengue virus kills 25,000 people annually in affected tropical regions. Non-structural protein 5 of the virus has RNA-dependent-RNA-polymerase and methyltransferase activity in separate domains. Since genome duplication ...
An analysis of sensitive material (silicon-germanium-oxide) using in uncooled microbolometer
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
Microbolometer is a device used as a thermal sensor in a thermal camera or a night vision camera. The most important part of the microbolometer is the sensitive material that was prepared by radio frequency (RF) magnetron ...
Determination of the efficacy of an applied vacuum at the skin surface during the laser therapy of Port Wine Stain (PWS) [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
We will be doing experiments ex vivo using pig skin, which is very similar and much more attainable than human skin, to test the stress vs. strain relationship, elasticity (Young's Modulus) and research skin mechanics. ...
How the position of menu items on a one-page menu effects item popularity [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2007)
The subject of this research project was to determine if the menu position of an item influences the number of times it is ordered. In this particular study, one-page menus were examined. A new menu was designed where each ...
Photoacoustic detection of metastatic melanoma in lymph nodes [abstract]
(University of Missouri--Columbia. Office of Undergraduate Research, 2008)
The project's objective is to detect metastatic melanoma cells in lymph node cross sections using a pulsed laser to generate the photoacoustic effect. When melanoma metastasizes it uses the blood stream or the lymphatic ...