Digital Commons Network^™

Trip Report: A Few Lessons In Love, Jason Adams

All Theses

Can a work of art care for someone? Can it address a need for comfort or love? My research focuses on simple gestures and actions that seek to fulfill these questions. This research spans a wide array of sculptural and performative strategies in order to give breadth to these goals and to access a multitude of audiences in different contexts. The work importantly bridges both traditional art venues as well as more public venues in order to participate in multiple conversations pertaining to the role of socially engaged art practices. By utilizing both ends of the locational spectrum for the …

Magnetic Manipulation Of Particles And Cells In Ferrofluid Flow Through Straight Microchannels Using Two Magnets, Jian Zeng

All Theses

Microfluidic devices have been increasingly used in the past two decades for particle and cell manipulations in many chemical and biomedical applications. A variety of force fields have been demonstrated to control particle and cell transport in these devices including electric, magnetic, acoustic, and optical forces etc. Among these particle handling techniques, the magnetic approach provides clear advantages over others such as low cost, noninvasive, and free of fluid heating issues. However, the current knowledge of magnetic control of particle transport is still very limited, especially lacking is the handling of diamagnetic particle. This thesis is focused on the magnetic …

The Effect Of Packaging Material Properties On Consumer Food Quality Perception In Quick-Service Restaurants, Emily Thackston

All Theses

The majority of menu items available in quick-service restaurants (QSR) are consumed directly from a container or package. The main reasons consumers choose to eat fast food are because it is convenient, prepared quickly, a good value, and inexpensive. Therefore, the packaging becomes an integral part of the food product and from a consumer perspective must be consistent with their expectations and motives for choosing to eat fast food. Prior research has directly linked characteristics of consumer food packaging experience to their perception of its contents. The purpose of this research is to determine if consumer quality perception of food …

Challenge And Hinderance Stressor Appraisals, Personal Resources, And Work Engagement Among K-12 Teachers, Isaac Benjamin Thompson

Masters Theses and Doctoral Dissertations

Stress has long been conceptualized as consisting of two factors, eustress, or good stress, and distress, or bad stress (Selye, 1956). The occupational stress literature identifies challenge stressors as those associated with favorable outcomes, and hindrance stressors as those associated with negative outcomes (Cavanaugh, Boswell, Roehling, & Boudreau, 2000). The current study had three objectives: 1) to investigate occupational level stressor appraisal by K-12 teachers, 2) to explore how the perception of the availability of resources influences individual level stressor appraisal, and 3) to test differential outcomes of challenge and hindrance stress. Results indicate that K-12 teachers appraise workload as …

Nest Success And Habitat Choice Of Wilson's Plovers In Tom Yawkey Wildlife Center Heritage Preserve, South Carolina, Elizabeth Zinsser

All Theses

Little is known about the reproductive ecology of Wilson's Plover (Charadrius wilsonia). I conducted a study of nest site selection and nest success at a critical breeding area in South Carolina, USA. Data from other coastal nesting birds in the region suggest that a suite of environmental factors including flooding and predation may limit nest success in this region. To assess nest success rates of Wilson's Plovers in an area with limited human disturbance I monitored 72 nests during 2012 and 2013 on South Island and Sand Island located in Tom Yawkey Wildlife Center and Heritage Preserve. I measured environmental …

Differential Effects Of Growth Factors On Glycolysis In Ovarian Cancer Cells, Fang Yuan

Theses and Dissertations

Lysophosphatidic acid (LPA), a naturally-occurring, simple phospholipid, is present at elevated levels in the blood and ascites of ovarian cancer patients. LPA is a ligand of seven cell surface G protein-coupled receptors. It has been known as an oncogenic growth factor in ovarian cancer and other types of human malignancies. However, the precise biological functions of LPA in ovarian oncogenesis remain to be fully elucidated. Our laboratory is interested in studying the potential role of LPA, as a tumor microenvironment factor, in regulation of cancer cell metabolism. A fundamental change associated with most cancer is the switch of glucose metabolism …

Uab Diabetes Research Center Receives 5 Year Grant Exceeding $5 Million, Alicia Rohan

Browse All News

No abstract provided.

Lessons Learned While Developing An Effective Culture Of Assessment For Library Instruction, Sonya S. Shepherd

University Libraries: Faculty Presentations

After testing and using multiple assessment surveys and tools over time to evaluate student learning after and satisfaction with library instruction, workshop attendees discussed lessons learned by an academic librarian attempting to develop a more effective culture of assessment for library instruction. The following was addressed:

• various surveys and tools used/tested
• why certain surveys and tools were selected for use and not others
• why certain surveys and tools worked better than others
• what were the lessons learned
• what assessment surveys and tools are being used after the lessons learned

The Impact Of Daycare And Child Temperament On Parent-Child Interactions, Kyle Bersted

Theses

This study explored the potential impact of child temperament and daycare on behavior problems and parental sensitivity. It was expected that children with more "difficult" temperaments would exhibit more behavior problems and have less sensitive parents when experiencing high amounts of daycare. Measures from 60 families involved in the Southern Illinois Twins and Siblings Study (SITSS) were examined. Results indicated that highly active children exhibited more externalizing behaviors when experiencing less daycare. Shy children experiencing more daycare had more sensitive parents. Additionally, a temperamental difference between co-twins was related to differential parental sensitivity. Lastly, DZ co-twins were more temperamentally different …

Estimation Of Optimal Protein To Energy Ratio And Percent Soybean Meal Replacement Of Fish Meal In Juvenile Scaphirhynchus Sturgeon Diets, Elliott C. Kittel

Theses

Research developing artificial propagation, husbandry, and nutrition of sturgeon species has developed greatly since the collapse of the Caspian Sea fisheries in the 1980s. Sturgeon species are commercially prized for their unfertilized roe which is marketed as the delicacy, caviar. Sturgeon production units commonly utilize commercial salmonid feeds, which contain large proportions of fish meal (FM) and fish oil (FO). Concerns regarding economics and sustainability have put pressure on aquafeed manufactures to efficiently utilize FM and FO, and to incorporate alternative protein sources, such as soybean meal (SBM). Therefore, the present studies estimated the optimal protein:energy ratio of juvenile Pallid …

Benthic Foraminiferal Analysis From Barilari Bay, Western Antarctic Peninsula Margin, Ilona Ilmara L. Matulaitis

Theses

The temperature record from the Antarctic Peninsula (AP) shows a warming trend 3°C greater than that of the Antarctic continent (Vaughan, et al., 2003). The LARsen Ice Shelf System, Antarctica (LARISSA) project was developed as an interdisciplinary collaboration to understand the impacts of global climate change on the ice shelf systems of the Peninsula. The 2010 LARISSA cruise to the western AP margin collected the two marine sediment cores from the mouth of Barilari Bay used for this thesis, Jumbo Piston Core (JPC) 127 and Jumbo Kasten Core (JKC) 55. The 77 sediment samples collected at 10 cm intervals were …

Identifying Environment Of Origin Of Illinois River Asian Carp Via Otolith Microchemistry And Stable Isotope Analyses, Jacob Dylan Norman

Theses

Asian carp have rapidly expanded their range through much of the Mississippi River Drainage over the past 10 to 15 years. Silver and bighead carp are now the dominant fish species present along several reaches of the Illinois River. The upper Illinois River and shipping canals entering Lake Michigan are of great concern as pathways for Asian carp to enter the Great Lakes. Knowledge of reproductive habitats and dispersal pathways for these species may be valuable for ongoing and future efforts to control these exotic invasives. Previous studies have successfully identified spawning areas of native riverine species via otolith microchemistry, …

Reproductive Biology Of The Invasive Plant Elaeagnus Umbellata: Breeding System, Pollinators, And Implications For Invasive Spread, Nathan Soley

Theses

Reproductive studies in invasive plants are necessary for an understanding of their potential to establish and spread in foreign environments. Elaeagnus umbellata Thunb. (autumn olive) is an invasive woody shrub that flowers early in the spring and is often noted for its abundant fruit set. This study examined the reproductive biology of E. umbellata in Illinois, where it is highly invasive. Hand-pollination experiments were performed to determine the breeding system of E. umbellata, and floral visitors were collected to determine its pollinators. Experiments showed that E. umbellata is a predominantly outcrossing species with a self-incompatible breeding system. However, individual variation …

Mobile Personal Health System For Ambulatory Blood Pressure Monitoring, Luis J. Mena, Vanessa G. Felix, Rodolfo Ostos, Jesus A. Gonzalez, Armando Cervantes, Armando Ochoa, Carlos Ruiz, Roberto Ramos, Gladys E. Maestre

School of Medicine Publications

The ARVmobile v1.0 is a multiplatform mobile personal health monitor (PHM) application for ambulatory blood pressure (ABP) monitoring that has the potential to aid in the acquisition and analysis of detailed profile of ABP and heart rate (HR), improve the early detection and intervention of hypertension, and detect potential abnormal BP and HR levels for timely medical feedback. The PHM system consisted of ABP sensor to detect BP and HR signals and smartphone as receiver to collect the transmitted digital data and process them to provide immediate personalized information to the user. Android and Blackberry platforms were developed to detect …

Fluctuating Asymmetry Of Menidia Beryllina As A Measure Of The Environmental Stress Caused By The 2010 Deepwater Horizon Oil Spill, Savannah A. Michaelsen

Honors Theses

Fluctuating asymmetry (FA) is often used as an indicator of environmental stress on a population. Stress encountered during development can result in asymmetries in bilateral traits. By quantifying fluctuating asymmetry in Menidia beryllina, FA can be used as an indicator of possible environmental stress linked to the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. The hypothesis states that the levels of FA will be greater in M. beryllina from post oil spill samples compared to pre oil spill samples. Menidia beryllina were used because they are a numerically dominant species found in high wave action coastal …

Deletion Of Putative Msa Operon Gene Fragment And Its Phenotypic Characterization In Community Acquired-Methicillin Resistant Staphylococcus Aureus Usa300 Strain Lac, Reem A. Dawoud

Honors Theses

Staphylococcus aureus is an important human pathogen that causes a wide variety of diseases. Many S. aureus strains have emerged which are resistant to the penicillin class of antibiotics. Of primary importance is methicillin-resistant S. aureus (MRSA), which has cause frequent hospitalizations due to infections. In the past, MRSA was typically confined to hospital settings, but recently, community-associated MRSA (CA-MRSA) have been reported. CA-MRSA poses a major public health threat because of increased virulence and success in infecting otherwise healthy individuals. Previously we discovered a gene, msa, which plays a critical role in biofilm formation and regulation of the …

Biophysical Characterization And Cross-Seeding Properties Of Lfaos, Novel Prion-Like Oligomers Of The Amyloid-Beta Peptide Involved In Alzheimer’S Disease, Morgan C. Woodrow

Honors Theses

The amyloid-beta (Aβ) protein is known to play an important role in the etiology of Alzheimer’s disease (AD). Aβ peptide aggregates in the brains of AD patients to form soluble oligomers as well as insoluble fibrils. Oligomers of Aβ are now known to be the primary toxic agents in AD. Evidence is beginning to emerge regarding a conserved prion-like propagation mechanism in AD. One of the principal characteristics of prion diseases is their ability to self-propagate via a template-assisted-corruptive mechanism. Our lab has previously characterized a unique ‘Aβ prion’ called Large Fatty-Acid- Derived Oligomers (LFAOs). This project examines the ability …

Using Manipulative Models To Develop Tree-Thinking, Donaven C. Mclaurin

Honors Theses

It is well known that students often struggle with tree-thinking, a core aspect of evolutionary education. Scientists consider phylogenetic trees multidimensional hypotheses of evolutionary relationships. However, student view textbook diagrams as static, two-dimensional images. Physical manipulatives have been used to facilitate learning science content in areas such as genetics, but these instructional tools have not yet been tested in tree-thinking. In order to circumvent students’ tree-thinking struggles, I investigated the use of manipulative, three-dimensional tree models in an introductory biology course designed for non-science majors (n=163). Specifically my research questions included: What are the differences in tree-thinking learning gains when …

Delivery Of Antiviral Sirna With Gold Nanoparticle Against Dengue Virus, Amanda J. Cooley

Honors Theses

The goal of this study was to use specific small-interfering RNA (siRNA) sequences to target the E gene of the Dengue virus serotype 2 (DENV-2). It was predicted that this targeted binding of siRNA would prevent subsequent translation of the E gene protein, as well as virion production in infected cells. Due to the instability of the antiviral siRNA, the siRNA was conjugated to gold nano-particles (AuNP) in order to provide stability during delivery to the infected Vero cells. Cells were transfected with siRNA-AuNP complexes prior to DENV-2 infection. The siRNA-AuNP complexes tested included two different siRNA sequences (at varying …

The Characterization Of Aunp-Pei Conjugates For Sirna Delivery To Cancer Cells, Albert J. Nosser

Honors Theses

Cancer is one of the leading causes of death for people in the United States. Despite the numerous cancer treatments available, many of these chemotherapy treatments cause negative side effects such as hair and weight loss. With this in mind, in the past 15 years, researchers have discovered a mechanism known as RNA interference, which can be used to control certain genes and their activity. This mechanism is based on the function of siRNA molecules, which can be inserted into cells.(12) These siRNA molecules can be manipulated to target and eliminate specific cancer cells. However, these siRNA molecules are normally …

Marine Phytoplankton Temperature Versus Growth Responses From Polar To Tropical Waters- Outcome Of A Scientific Community-Wide Study, Philip W. Boyd, Tatiana A. Rynearson, Evelyn A. Armstrong, Feixue Fu, Kendra Hayashi, Zhangxi Hu, David A. Hutchins, Elena Litchman, Margaret R. Mulholland, Uta Passow, Robert F. Stzepek, Kerry A. Whittaker, Elizabeth Yu, Mridul K. Thomas

OES Faculty Publications

“It takes a village to finish (marine) science these days”

Paraphrased from Curtis Huttenhower (the Human Microbiome project)

The rapidity and complexity of climate change and its potential effects on ocean biota are challenging how ocean scientists conduct research. One way in which we can begin to better tackle these challenges is to conduct community-wide scientific studies. This study provides physiological datasets fundamental to understanding functional responses of phytoplankton growth rates to temperature. While physiological experiments are not new, our experiments were conducted in many laboratories using agreed upon protocols and 25 strains of eukaryotic and prokaryotic phytoplankton …

Springtime Contribution Of Dinitrogen Fixation To Primary Production Across The Mediterranean Sea, E. Rahav, B. Herut, A. Levi, Margaret Mulholland, I. Berman-Frank

OES Faculty Publications

Dinitrogen (N-2) fixation rates were measured during early spring across the different provinces of Mediterranean Sea surface waters. N-2 fixation rates, measured using N-15(2) enriched seawater, were lowest in the eastern basin and increased westward with a maximum at the Strait of Gibraltar (0.10 to 2.35 nmol NL-1 d(-1), respectively). These rates were 3-7 fold higher than N-2 fixation rates measured previously in the Mediterranean Sea during summertime and we estimated that methodological differences alone did not account for the seasonal changes we observed. Higher contribution of N-2 fixation to primary production (4-8 %) was measured in the western basin …

School Culture And Leadership: Teacher Perceptions Of Title I And Non-Title I Schools, Krista R. Crum

Electronic Theses and Dissertations

This study was conducted to see if teachers perceive a significant difference in school culture and leadership in Title I and non-Title I schools. Specifically, this researcher considered the possibility that teachers working in Title I schools have lower perceptions of their school’s culture and leadership than teachers working in non-Title I schools. A quantitative study was used to find the perceived differences between school culture and leadership in Title I and non-Title I schools. A quasi-experimental design was selected because preexisting data were collected on teachers in an upper East Tennessee region. The data were collected from the TELL …

Variations In Phenotypic Plasticity And Fluctuating Asymmetry Of Leaf Morphology Of Three Quercus (Oak) Species In Response To Environmental Factors, Joseph Kusi

Electronic Theses and Dissertations

Leaf morphology of Quercus (oak) species is highly variable and complicated confounded with phenotypic plasticity and fluctuating asymmetry (FA). However, the study of variation is mostly limited to leaf morphology. This study was extended to plasticity and FA variations in Q. alba (white oak), Q. palustris (pin oak), and Q. velutina (black oak). It was hypothesized that light exposure, individual trees, leaf position, and other leaf traits will influence variation in these species. Leaves were sampled from trees of these species and their morphological traits were measured. Absolute asymmetry of leaf width and area were determined and plasticity of each …

National Science Foundation Grant Implementation: Perceptions Of Teachers And Graduate Fellows In One School Regarding The Barriers And Successes, Sharon D. Pickering

Electronic Theses and Dissertations

The purpose of this qualitative case study was to examine the perceptions of partner teachers and graduate fellows in 1 school regarding the barriers and successes made during their participation in a National Science Foundation Grant. This study included 9 partner teachers and 7 graduate fellows who participated in the Science First! NSF GK-12 Grant. There were 16 participants in this study. This study was conducted at North Side Elementary and East Tennessee State University.

Partner teachers and graduate fellows were interviewed to gain perceptions of the barriers and successes of their participation in the implementation of the Science First! …

Preventing Skin Cancer In Adolescent Girls Through Intervention With Their Mothers, Mary K. Baker

Electronic Theses and Dissertations

Indoor tanning (IT) before the age of 35 increases one’s risk for melanoma by 75%, and epidemiological data show a 6.1% annual increase in the incidence of melanomas in white women younger than age 44 in the US. Population-based studies reveal that 15% of adolescents and 8% to 14% of their primary caregivers have engaged in IT in the past year.

The compelling case for IT being a significant risk factor for melanoma, together with the high rates of IT in teen girls and their mothers, provided a strong rationale for conducting an antitanning intervention directed at mother-daughter dyads. This …

Fossil Trachemys (Testudines: Emydidae) From The Late Hemphillian Of Eastern Tennessee And Its Implications For The Evolution Of The Emydidae, Steven E. Jasinski

Electronic Theses and Dissertations

Trachemys (Testudines: Emydidae) represents one of the most well-known turtles today. The evolution of Trachemys, while being heavily documented with various fossil representatives, is not well understood. Numerous fossils from the Gray Fossil Site in northeastern Tennessee are helping to elucidate the taxon’s evolution. The fossil Trachemys at the Gray Fossil Site represent a new species. A review of previously named Trachemys taxa reveals that a huge majority of them are not valid or have been previously misinterpreted. A phylogenetic analysis preformed on modern emydids and supposed fossil representatives of those genera also shows the evolution of a portion …

Comparison Of Obesity Bias, Attitudes, And Beliefs Among Undergraduate Dietetic Students, Dietetic Interns, And Practicing Registered Dietitians, Sarah E. Welborn

Electronic Theses and Dissertations

The obesity epidemic in the United States is increasing, and health concerns are also on the rise as they are directly related to obesity. Even though the majority of Americans are overweight or obese, prejudice and weight bias continue to be prevalent and socially accepted in a culture that tolerates discrimination towards these individuals. Health care providers, including registered dietitians, are not exempt from instigating bias towards obese patients causing a decrease in the level of care that they receive. The main purpose of this study was to compare attitudes, beliefs, and bias concerning obesity among undergraduate dietetic students, dietetic …

Assessment Of Dietary Behaviors Of College Students Participating In The Health Promotion Program Bucs: Live Well, Courtney E. Mckinney

Electronic Theses and Dissertations

Rates of adult obesity in the United States continue to rise, especially among the college-age population who typically practice poor dietary choices, contributing to weight gain. College-age students experience a transitional phase called ‘emerging adulthood’ where they learn autonomy in many areas that influence long-term health status. The purpose of the online health promotion program BUCS: Live Well was to promote self-efficacy in ability to incorporate positive dietary changes, assess incidences of positive dietary habits after completing the program, and determine if weight status, residence, and health perceptions influence dietary behaviors. BUCS: Live Well was successful in assessing current dietary …

Academic Performance Of First-Year Students At A College Of Pharmacy In East Tennessee: Models For Prediction, Cheri W. Clavier

Electronic Theses and Dissertations

With the increase of students applying to pharmacy programs, it is imperative that admissions committees choose appropriate measures to analyze student readiness. The purpose of this research was to identify significant factors that predict the academic performance, defined as grade point average (GPA) at the end of the first professional year, of pharmacy students. The population consisted of 466 students enrolled in a Doctor of Pharmacy Program in northeast Tennessee over a 5-year period. Statistical procedures included bivariate correlations, t-tests for independent samples, and multiple regression. Analysis of the data revealed that the majority of the students in the population …