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Articles 91 - 109 of 109
Full-Text Articles in Life Sciences
Crabp1 Regulation Of Fas Rna In Mouse Mammary Gland Ascs, Fabiola De Varona Colon
Crabp1 Regulation Of Fas Rna In Mouse Mammary Gland Ascs, Fabiola De Varona Colon
Honors Theses
Introduction: The cellular retinoic acid binding protein 1 (Crabp1) promotes tumor growth and is expressed in adipocyte stromal cells (ASCs-L) present during lactation. One known function of Crabp1 is the binding and retention of retinoic acid (RA) in the cytoplasm. This can prevent RA regulated transcription of other genes. Research has shown that Crabp1 is also responsible for the inability of ASC-Ls to retain lipid. This study hoped to connect these two functions of Crabp1 and hypothesized that Crabp1 limits lipid accumulation through Fatty acid synthase (FAS) transcriptional regulation. FAS is an example of a gene that is regulated by …
Vesicle-Membrane Tethering: The Interaction Of Sec1 And Exocyst Subunit Sec6, Lauren O'Connor
Vesicle-Membrane Tethering: The Interaction Of Sec1 And Exocyst Subunit Sec6, Lauren O'Connor
Honors Theses
The exocyst complex is a multi-subunit tethering complex that is used in the process of exocytosis. There are eight subunits in the complex, and these subunits interact with each other as well as proteins outside of the complex to facilitate membrane fusion. Prior research has shown that the exocyst subunit Sec6 and Sec1 from the Sec1/Munc18 (SM) family, a known regulator of membrane fusion, interact with each other. In this experiment, the goal was to crosslink the two proteins and in turn work to identify the interacting amino acid residues that are responsible for the proteins’ interaction. To do this, …
Is Stem Cell Transplantation A Practical Treatment For Macular Degeneration?, Zachary Slepchuk
Is Stem Cell Transplantation A Practical Treatment For Macular Degeneration?, Zachary Slepchuk
Honors Theses
No abstract provided.
Examination Of Electroglottography (Egg) And Surface Electromyography (Semg) As Techniques To Assess Oral Motor Activity During Consumption Of Four Forms Of Chocolate, Taylor Patterson
Honors Theses
The study assessed individual oral motor activity while eating different types of chocolates through the use of electroglottography (EGG) and surface electromyography (sEMG). I hypothesized that chocolate samples with higher milk solids and cocoa composition would be preferred by subjects as assessed by subject evaluation of textural attributes for the four chocolate samples. I predicted that preference will be significantly and positively correlated with oral motor events [e.g. sEMG activity of master and suprahyoid muscles, total number of chewing actions, and time to last swallow (EGG)]. The experiment used a subject group of 40 students enrolled at the University of …
Autoregulation Of The Glial Gene Reversed Polarity In Drosophila Melanogaster, Chase Suiter
Autoregulation Of The Glial Gene Reversed Polarity In Drosophila Melanogaster, Chase Suiter
Honors Theses
Autoregulation is the process where an encoded protein is able to bind to and positively or negatively regulate its own expression. Autoregulatory loops are crucial for sustained gene expression, and such loops have been demonstrated to be important for development in organisms ranging from Danio rerio to Arabidopsis thaliana and Drosophila melanogaster. The cells of the nervous system arise from progenitor cells that eventually adopt one of two fates: neuronal or glial. This decision is controlled by glial cells missing; however glial cells missing is expressed briefly at the beginning development. The glial gene repo is a gene that is …
Spatial Variation Of Bacterial Communities On The Leaves Of A Southern Magnolia Tree, Emily Q. Nguyen
Spatial Variation Of Bacterial Communities On The Leaves Of A Southern Magnolia Tree, Emily Q. Nguyen
Honors Theses
The leaf surface, or phylloplane, is a dynamic environment for its microbial inhabitants, which can be subjected to many environmental factors. Existing phylloplane studies have focused on differences in bacterial community structure between trees of the same species, in different geographical locations, or between trees of different species. Few studies have examined the spatial distribution of bacterial communities on the leaves of a single tree. In this study, leaf samples from different areas of the canopy were obtained from a single Magnolia grandiflora tree. Samples were taken from the high (3.5-4.0 m above the ground), middle (1.5 m), inner middle …
Comparative Effectiveness Of An Exercise And Sedentary Break Intervention On Mood Profile And Dietary Behavior In Young Adults: Pilot Study, Hannah Dau
Honors Theses
Exercise and sedentary behavior are both important subsets of PA (Physical Activity) to study, with emerging research demonstrating that sedentary behavior may predict mental health outcomes independent of PA. Additionally, a correlation has been observed between diet and PA, but few studies on this topic have employed an intervention design. Thus, the purpose of this study was to examine whether changes in PA and sedentary behavior influence mood profile and dietary behavior. The PA intervention consisted of progressively increasing their vigorous-intensity PA (jogging) over a 4-week period among an inactive population. The sedentary group was asked not to exercise, but …
Evaluation Of A Farmers' Market Intervention On Food Insecurity, Health, And Diet Of Individuals Living In Rural, Appalachian Mississippi, Heather A. Poole
Evaluation Of A Farmers' Market Intervention On Food Insecurity, Health, And Diet Of Individuals Living In Rural, Appalachian Mississippi, Heather A. Poole
Honors Theses
Objective: This study examined: 1) the impact of a farmers' market nutrition education and incentive intervention on household adult food security status, produce intake, perceived diet quality, and perceived health of individuals living in rural, Appalachian Mississippi; and 2) the relationship of household adult food security status to produce intake, perceived diet quality, and perceived health at baseline. Methods: Participants were recruited for a 12-week farmers' market nutrition education and incentive ($3.00/week) intervention at two rural farmers' markets in an economically distressed, Appalachian Mississippi county and completed pre- and post-intervention surveys. Results: The mean age of participants (n=60) was 57 …
Population Genetics Of The Giant Red Centipede Along The Appalachian Mountains, Kayla Elayne Ladner
Population Genetics Of The Giant Red Centipede Along The Appalachian Mountains, Kayla Elayne Ladner
Honors Theses
This study focused on population genetics of the giant red centipede, Scolopocryptops sexpinousus, in the Southern Appalachian Mountains. Two genetic markers were used—the mitochondrial COI gene, and the nuclear RNA Polymerase II gene. The goal of this study was to determine how many genetically distinct populations of this invertebrate species exist within the study area, and to understand the spatial distribution of genetic diversity within and among populations. I hypothesized several genetically distinct populations of S. sexpinosus would be detected because the complex topographic characteristics and historical climate cycles of the region are thought to limit movement of many forest …
Investigating Veterinary Management Choices For Canine Heartworm Disease (Dirofilaria Immitis) In Northern Mississippi, Tobi Ku
Honors Theses
Canine heartworm disease affects nearly 45% of dogs in endemic regions of the United States (Atkins, 2005). There are concerns that the chronic use of macrocyclic lactone (ML) preventives to kill adult heartworms (soft- or slow-kill) may have contributed to the development of ML resistance. My study of this problem had three objectives: (a) to determine the frequency of slow-kill treatment in heartworm-positive patients and compare them to practitioner estimates; (b) to survey practitioner opinions on the factors influencing heartworm disease management; and (c) to analyze the heartworm prevention history of heartworm-positive patients in order to understand the causes of …
Searching For The Genetic Components Responsible For Salt-Induced Flowering In The Extremophyte Schrenkiella Parvula, John Johnson
Searching For The Genetic Components Responsible For Salt-Induced Flowering In The Extremophyte Schrenkiella Parvula, John Johnson
Honors Theses
No abstract provided.
Qpcr Amplification Of Heat Shock Protein 70 In Hybrid And Pure Populations Of Tigriopus Californicus, Angela Yoon
Qpcr Amplification Of Heat Shock Protein 70 In Hybrid And Pure Populations Of Tigriopus Californicus, Angela Yoon
Honors Theses
No abstract provided.
Vein Patterning During Juvenile Wing Development In Oncopeltus Fasciatus And Jadera Haematoloma, William R. Simmons
Vein Patterning During Juvenile Wing Development In Oncopeltus Fasciatus And Jadera Haematoloma, William R. Simmons
Honors Theses
Wings are a defining characteristic of all pterygote insects and are agreed to originate from a single common winged ancestor. However, essentially nothing is known about the molecular mechanisms that regulate wing development and patterning outside of Endopterygota, and the vast majority of this knowledge comes solely from Drosophila melanogaster. There is reason to suspect that the drastic developmental differences that exist between Endopterygota and Exopterygota have resulted in changes in the mechanisms, timings, or even genes that govern wing development. This study examined the roles of several genes known to be involved in D. melanogaster wing development and patterning …
Crops And Controversy: Industry’S Role In The Gmo Debate, Carina Wallack
Crops And Controversy: Industry’S Role In The Gmo Debate, Carina Wallack
Honors Theses
The use of genetically modified crops (also called GM crops, genetically modified organisms, or GMOs for short) has become a highly contested issue. New genetic modification technologies offer a variety of advantages for improving agricultural efficiency. However, some scientists argue that the safety testing conducted thus far does not provide enough information and worry about possible health and ecological risks. Private industry sponsors a great deal of research on genetically modified crops. As the international controversy regarding the use of GMOs has unfolded, the very companies responsible for commercializing genetically modified crops have gained substantial influence in the resulting scientific …
The Progression Of Lyme Disease In The State Of Virginia, Margaret Michel
The Progression Of Lyme Disease In The State Of Virginia, Margaret Michel
Honors Theses
Lyme disease has spread in the United States from the northeast to more southern and western parts of the country. It has been shown that the tick which most often carries the Lyme disease pathogen (Borrelia burgdorferi) in North America, Ixodes scapularis, has also spread to these new areas of concern. In Virginia, the disease has progressed from the eastern shore to the western, more mountainous regions. Through obtaining historical museum specimens of mice from 11 locations in Virginia, we seek to determine whether the Lyme disease causing pathogen, B. burgdorferi, has always been present in …
Temporal Changes In The Larval Placopecten Magellanicus Population In A Small-Scale Fishery Closure Area In Coastal Maine, Usa, Jessica P. Batchelder
Temporal Changes In The Larval Placopecten Magellanicus Population In A Small-Scale Fishery Closure Area In Coastal Maine, Usa, Jessica P. Batchelder
Honors Theses
The Midcoast Maine Collaborative Scallop Project was established in 2013 by fishers, scientists, and policy makers to determine if a small-scale closure area could restore the local Atlantic sea scallop (Placopecten magellanicus) population to an area in coastal Maine that previously supported high scallop densities. These stakeholders established a three by one mile closure area in the Lower Muscle Ridge Channel to assess the response of the adult and larval scallop populations. Understanding the larval dynamics in a closure area is key to evaluating the recovery potential of the population and for future population stock levels. This study …
The Effects Of Microstegium Vimineum On The Soil Microbial Community, Holly Kate Raymond
The Effects Of Microstegium Vimineum On The Soil Microbial Community, Holly Kate Raymond
Honors Theses
Invasive species can spread into native ecosystems and become dominant species. The spread of invasive species is one of the largest threats to biodiversity. Microstegium vimineum is an annual C4 grass that is native to various parts of Asia. M. vimineum was introduced to the United States in the early twentieth century and has rapidly spread due to its high seed production. This study examined the effects of M. vimineum invasion on the composition of the soil bacterial community. Soil samples were collected from two woodland sites in northern Mississippi in November 2014 and 2015. The presence of M. vimineum …
Egg Laying Bird With Male Plumage Demonstrates The Puzzling Nature Of Sexual Differentiation And Selective Mate Preferences In Zebra Finches, John Aaron Howell
Egg Laying Bird With Male Plumage Demonstrates The Puzzling Nature Of Sexual Differentiation And Selective Mate Preferences In Zebra Finches, John Aaron Howell
Honors Theses
Zebra finches (Taeniopygia guttata) are oscine Passerine songbirds that are native to Australia. Zebra finches have sexually dimorphic plumage, song nuclei, and behavior. The role of chromosomes, hormones, and genes on sexual differentiation are not completely understood. A gynandromorph in our aviary had male plumage, a male partner, and produced viable offspring. Mate preference tests revealed lower preference for the gynandromorph and its progeny than controls, suggesting that they had some traits that made them unattractive to other birds. Gynandromorph lineage males had greater same-sex preferences than control males. Chromosomes in birds are different than those in humans. Males are …
The Prevalence Of Food Insecurity Within The University Of Mississippi Community And Knowledge Of And Opinions About The University Of Mississippi Food Bank, Megan Marie Eubanks
The Prevalence Of Food Insecurity Within The University Of Mississippi Community And Knowledge Of And Opinions About The University Of Mississippi Food Bank, Megan Marie Eubanks
Honors Theses
The purpose of this research was to determine the prevalence of food insecurity within the University of Mississippi community. The project also investigated whether the University of Mississippi (UM) community supports and/ or knows about the UM Food Bank. A survey to determine perceived levels of food insecurity and knowledge of and opinions about the UM Food Bank was dispersed through Qualtrics Survey Software via University email to one-third of the UM faculty, staff, graduate students (including Pharmacy and Law), and undergraduate students. The final survey response count was 356 (response rate: 6.48%). Data collected for questions pertaining to food …