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Articles 1 - 11 of 11
Full-Text Articles in Life Sciences
The Debate On Marine Mammals In Captivity, Lorna C. Scribner
The Debate On Marine Mammals In Captivity, Lorna C. Scribner
Honors Theses
Are marine mammal species better off today because of captivity? Is captivity ethical and should it be continued? As this debate grows stronger, both of these sides of the argument offer substantial evidence in their favor. In this paper, I discuss data for both sides and evaluate the justifications of marine mammal captivity. Ideally, no matter the outcome, this research will educate the public on influential factors of wild and captive populations.
Quantifying Acclimation Levels Of Mimus Polyglottos In The Presence Of People, Jordan Rutherford
Quantifying Acclimation Levels Of Mimus Polyglottos In The Presence Of People, Jordan Rutherford
Honors Theses
The northern mockingbird (Mimus polyglottos) is a common bird species found in North America that in the past 150 years has expanded its distribution north. It is now commonly seen in urban and suburban areas were at one point, it was rarely seen outside of rural and forested areas. For the study, I observed northern mockingbirds at nine different sites over a period of a month between September and October 2012. After the study, I determined that there is a negative relationship between the number of people in the surrounding area and the distance when the birds flew away.
Differences In Food Availability For Venus Flytraps In Resident And Restored Populations, J. Mason Truluck
Differences In Food Availability For Venus Flytraps In Resident And Restored Populations, J. Mason Truluck
Honors Theses
Expanding on a previous two-year study of resident and restored populations of Venus flytraps in Lewis Ocean Bay Heritage Preserve, the arthropod populations at resident and restored sites were sampled and compared to determine if there was a significant difference between them. Fourteen orders of invertebrates were collected from the sites, with the most numerous being Collembola (springtails) and Hymenoptera of the Family Formicidae (ants). There was no significant difference between the sample groups, though two of the traps from the restored sites were unusable. This study suggests that the arthropod population size and composition does not differ between the …
A Comparison Of Placental Tissue In The Skinks Eulamprus Tympanum And E. Quoyii, Lauren Yates
A Comparison Of Placental Tissue In The Skinks Eulamprus Tympanum And E. Quoyii, Lauren Yates
Honors Theses
The species Eulamprus tympanum and Eulamprus quoyii are viviparous skinks that are said to have a Type I placenta. This research compared histological characteristics of the oviduct during pregnancy in E. tympanum and E. quoyii and assessed whether structural features are consistent with a Type I placentation. A similarity was seen in both of these species and was not consistent with a Type I placenta. Extreme folding of the uterine tissue was observed in the early stages. An increase in glands around the later stages was observed while there was no change in blood vessel density over the course of …
Effects Of Selenium On The Freshwater Alga Chlamydomonas Reinhardtii With And Without The Proteasome Inhibitor Mg132, E. Patrick Vallentine
Effects Of Selenium On The Freshwater Alga Chlamydomonas Reinhardtii With And Without The Proteasome Inhibitor Mg132, E. Patrick Vallentine
Honors Theses
Selenium is a required nutrient in animal life but has not been shown to be needed in plants. The model plant cell Chlamydomonas reinhardtii may be an exception as it appears to increase its growth rate in the presence of selenium. Because selenium has the same valence state as sulfur it may be incorporated into proteins as the modified amino acid selenocysteine. This incorporation of selenocysteine into protein may disrupt the disulfide bridges that give proteins the correct conformation. Misfolded proteins can wreak havoc on a cell. This stress can be measured through several parameters. Chlorophyll levels, glutathione levels, growth, …
The Influence Of Ubiquitin-Related Modifier Protein Urm1 On Prion Formation, Jacob Beaver
The Influence Of Ubiquitin-Related Modifier Protein Urm1 On Prion Formation, Jacob Beaver
Honors Theses
Prions are infections proteins that are auto-catalyzing (form by altering a regular protein into the structurally different prion form), and are the cause of many common diseases such as Alzheimer's, Parkinson's, Huntington's, and Bovine Spongiform encephalopathy (or Mad Cow disease). This experiment tested the effect of three different plasmids, pH317, pER62 and pmp46 on prion formation in both wild-type and Urm1 deletion mutants in the yeast Saccharomyces cerevisiae. The proposed hypothesis was overexpression of the prion forming protein would increase the frequency of prion formation, as well as yield less sustainable prion amyloids (or prion aggregations) that are easier to …
Effects Of Human Bmp-2 On Trans-Differentiation Of Myoblast Cells And Human Rhabdomyosarcoma Using An In Vitro Model System, Shannon Kelly
Effects Of Human Bmp-2 On Trans-Differentiation Of Myoblast Cells And Human Rhabdomyosarcoma Using An In Vitro Model System, Shannon Kelly
Honors Theses
Fibrodysplasia Ossificans Progressiva (FOP) is an autosomal dominant disease that affects one in every two million persons. It is a disease that stimulates ossification in injured muscle cells. This mutation affects the bone morphogenetic protein receptor (BMPR), which is found on the surface of skeletal muscle cells. When bone morphogenetic proteins (BMP) come into contact with these receptors it causes a cascade of events to occur that transform skeletal muscle cells into bone cells. This mutation causes these receptors to remain constitutively activated in the presence of BMP. We compared the effects of human BMP2 on mouse myoblast cells (C2C12) …
The Importance Of Isolated Wetlands As Habitat For Rare And Endangered Species In Comparison To Riparian Wetlands, Hillary K. Ballantine
The Importance Of Isolated Wetlands As Habitat For Rare And Endangered Species In Comparison To Riparian Wetlands, Hillary K. Ballantine
Honors Theses
In this paper, I will review the literature on the factors contributing to the presence of rare or endangered species, the species found in each wetland type and what threatens them, and the views on how to and why we should conserve these habitats. I will also provide data analyses on the importance of isolated wetlands as habitats for rare and endangered species in comparison to riparian wetlands, and present my own views on the topic.
Of Mice And Mozart: Testing Spatial Reasoning And Memory Of Rats, Kaitlin O'Toole
Of Mice And Mozart: Testing Spatial Reasoning And Memory Of Rats, Kaitlin O'Toole
Honors Theses
An increase in spatial-temporal reasoning has been documented in the presence of Mozart's sonata K.448; this enhancement of physical and psychological activities is called the "Mozart Effect" (Hughes 2001). This effect has been recorded in humans and animals alike, and its influence reaches a myriad of applications including calming wild animals to increasing test scores in college students to lowering high blood pressure. Using a cheeseboard apparatus to test spatial reasoning in rats, this experiment recorded the results from maze tasks completed in the presence of sonata K.448 compared to trials completed in silence. Results showed a significant difference between …
Nicotine-Induced Neuroprotection In Drosophila Models Of Parkinson's Disease, Lynsey Deudne
Nicotine-Induced Neuroprotection In Drosophila Models Of Parkinson's Disease, Lynsey Deudne
Honors Theses
Parkinson's disease (PD) causes rigidity, tremors, and posture impairments. There is no cure for this disease and its symptoms intensify with age. In this study, fruit flies were induced with PD using rotenone and the flies in treatment group were provided with food that contained nicotine to determine if nicotine causes neuroprotection and alleviates symptoms of PD. A climbing assay was used to assess the severity of symptoms of PD in the control and experimental groups. The PD induced flies that received nicotine did not show a significant difference in motor ability and therefore did not experience neuroprotection.
Analysis Of The Response Of A Bromeliad, Vriesea Gigantea, Subjected To Drought, Taylor Epley
Analysis Of The Response Of A Bromeliad, Vriesea Gigantea, Subjected To Drought, Taylor Epley
Honors Theses
Drought can quickly alter physiological processes in plants not adapted to such conditions. Epiphytic plants, however, have been noted to have some tolerance to drought, which is evident in their water-holding tanks. Several physiological components were measured to determine if Vriesea gigantea, an epiphytic bromeliad, has drought tolerance. Water content, maximum quantum yield, protein concentration, and protein content were measured and compared between three control plants and three experimental plants, which were subjected to two weeks of no water. Water content showed a significant difference, indicating that the plants were being stressed compared to the control plants. The average maximum …