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Full-Text Articles in Animal Sciences

Effect Of Calcium Channel Antagonists And Sex On Bone Metabolism In Aged Brown Norway Rats, Brent Kidd Apr 2007

Effect Of Calcium Channel Antagonists And Sex On Bone Metabolism In Aged Brown Norway Rats, Brent Kidd

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science & Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Brent Kidd on April 19, 2007.


Distribution And Conservation Genetics Of The Cow Knob Salamander, Plethodon Punctatus Highton (Caudata: Plethodontidae), Matthew R. Graham Jan 2007

Distribution And Conservation Genetics Of The Cow Knob Salamander, Plethodon Punctatus Highton (Caudata: Plethodontidae), Matthew R. Graham

Theses, Dissertations and Capstones

Being lungless, plethodontid salamanders respire through their skin and are especially sensitive to environmental disturbances. Habitat fragmentation, low abundance, extreme habitat requirements, and a narrow distribution of less than 70 miles in length, makes one such salamander, Plethodon punctatus, a species of concern (S1) in West Virginia. To better understand this sensitive species, day and night survey hikes were conducted through ideal habitat and coordinate data as well as tail tips (10 to 20 mm in length) were collected. DNA was extracted from the tail tips and polymerase chain reaction (PCR) was used to amplify mitochondrial 16S rRNA gene fragments. …


New Microanatomical Characters For Scorpion Taxonomy (Arachnida: Scorpiones), Michael Brewer Jan 2007

New Microanatomical Characters For Scorpion Taxonomy (Arachnida: Scorpiones), Michael Brewer

Theses, Dissertations and Capstones

Morphological characters used in scorpion systematics are limited to a few reliable structures. The most recent high-level, comprehensive revision of scorpion phylogeny, 38 of the 105 morphological characters were based on trichobothria – socketed mechanosensory seta (Soleglad & Fet, 2003). Other microstructures such as granules, setae, spines, etc. have been found in scorpions but their use for taxonomy was limited. In an effort to better understand the complex relationships among these ancient but similar looking animals, we attempted to first locate new microstructures and then assess their reliability and variability thus determining the levels at which they are diagnostic. The …


Arsenic Toxicity In Plhc-1 Cell Line And The Distribution Of Arsenic In Central Appalachia, Yeong Nam Jeong Jan 2007

Arsenic Toxicity In Plhc-1 Cell Line And The Distribution Of Arsenic In Central Appalachia, Yeong Nam Jeong

Theses, Dissertations and Capstones

Our ecosystem has geobiophysical relationships. Environmental pollution can lead to immediate consequences like organism death or lack of reproduction. It can also lead to long-range consequences through mutations and DNA damage. Fish can be affected very directly by environmental contamination in water but the study of fish is not performed well. We are developing a quantitative assay to assess DNA damage in vitro due to heavy metal contamination using a tissue culture line of Poeciliopsis lucida, the desert pupfish, which is used for other toxicology assays. To detect DNA damage, Single Cell Gel Electrophoresis (Comet Assay) is very useful. …