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Parasitism And Feather Reflectance In Mourning Doves (Zenaida Macroura), Wesley Youngblood
Parasitism And Feather Reflectance In Mourning Doves (Zenaida Macroura), Wesley Youngblood
Honors Theses
The theory of sexual selection has proven to be an important factor in understanding the mechanisms behind the evolution of secondary sexual traits. The Hamilton and Zuk (1982) hypothesis of parasite-mediated sexual selection postulates that birds evolved ornamentation to indicate parasite resistance to potential mates. My research explores the relationship between parasite load and plumage coloration in hunter-harvested mourning doves. Plumage from seven body areas was collected, ectoparasites were quantified and blood smears made so that intracellular hematozoan parasites could be quantified. Tarsometatarsi were measured, and the testes of males were collected to determine any effects of parasite load on …
Meta-Analysis Of Melanoma Incidence In The United States: Demographic Variation And Relationship With Uv Index And Latitude, Charles Thomas Pritchard
Meta-Analysis Of Melanoma Incidence In The United States: Demographic Variation And Relationship With Uv Index And Latitude, Charles Thomas Pritchard
Honors Theses
A link between exposure to ultraviolet (UV) radiation and melanoma skin cancer formation has generally been accepted in the scientific community, but precise quantification of such a link into a predictive equation is difficult to find in scientific literature. It was the aim of this study to determine if a quantifiable relationship exists between UV exposure and melanoma rates in the United States. Prior to the initiation of this study, it was hypothesized that existing predictive equations using accumulated UV index and latitude for general skin cancer incidence (i.e., including both melanoma and non-melanoma skin cancers) in Chile would be …
Electromyography Of Mastication Muscles In College Athletes, John Ratliff
Electromyography Of Mastication Muscles In College Athletes, John Ratliff
Honors Theses
The purpose of this experiment was to determine if co-activation in enhanced neck muscles increased surface electromyography (sEMG) activity in the masseter while chewing with the 1st, 2nd, and 3rd molars. Sixteen football players from The University of Mississippi volunteered for this study. Football players were examined because they strengthen their neck 4 days a week to help prevent neck injuries and concussions. Participants' average body fat was 15.68% and average body mass was 100.69 kilograms showing that the participants were larger, muscular individuals compared to non student-athletes and represent a unique, study group. Participants performed maximum weight on a …