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Eliminating The Shortage Factor: Modeling The Behavior Of Future Donations Using Forecasting Techniques To Improve The Distribution Efficacy Of A Food Bank, Jessica Rena Terry Jan 2013

Eliminating The Shortage Factor: Modeling The Behavior Of Future Donations Using Forecasting Techniques To Improve The Distribution Efficacy Of A Food Bank, Jessica Rena Terry

Theses

Food insecurity is defined as the inability to provide food for oneself. As of 2011, more than 14.9% of American households suffered from food insecurity. Many individuals suffering from food insecurity obtain assistance from governmental programs and nonprofit agencies. Food Banks are one of many non-profit organizations assisting in the fight against hunger. They serve communities by distributing food to those in need through charitable agencies. Many of the food distributed by the food bank come from donations. These donations are received from various sources in uncertain quantities at random points in time. Due to this variability, predicting the quantity …


Application Of Adaptive Extended Kalman Filtering Scheme To Improve The Efficiency Of A Groundwater Contaminant Transport Model, Elvis Boamah Addai Jan 2013

Application Of Adaptive Extended Kalman Filtering Scheme To Improve The Efficiency Of A Groundwater Contaminant Transport Model, Elvis Boamah Addai

Theses

Pollution of groundwater can be harmful to the environment. The use of subsurface contaminant transport models, combined with stochastic data assimilation schemes, can give on-target predictions of contaminant transport to enhance the reliability of risk assessment in the area of environmental remediation. Observation data are required to guide the deterministic system model to assimilate the true state of the contaminant. Modeling the behavior of contaminant in groundwater is imperative in predicting the fate of the pollutant, in risk assessment, and as a preceding step of the remission process. In this study a two-dimensional transport model with advection and dispersion is …


Alzheimer's Disease Literacy In The African American Community, Angel Mckenzie Watson Jan 2013

Alzheimer's Disease Literacy In The African American Community, Angel Mckenzie Watson

Theses

Alzheimer's disease (AD) is a public health crisis in the African American (AA) community, as evidenced by both increased prevalence and familial risk among African Americans. African Americans are two times as likely to suffer with this disease, are diagnosed later in the disease process, and are considered to have less factual information about AD when compared to their white counterparts. Late diagnosis has been associated with significantly higher dementia-related morbidity and health care costs. Moreover, studies have shown that patients with increased health literacy have better health outcomes. Therefore, we want to assess how well African Americans understand Alzheimer's …


Synthesis And Characterization Of Hydroxyapatite Doped With Strontium Carbonate Thin Film Coatings, Stephen Ayodeji Ajinola Jan 2013

Synthesis And Characterization Of Hydroxyapatite Doped With Strontium Carbonate Thin Film Coatings, Stephen Ayodeji Ajinola

Theses

The main purpose of the research is to investigate the corrosion rate and mechanical properties of thin film of strontium carbonate (Sr2CO3) doped with hydroxyapatite (HA) on titanium substrates using DC Corrosion of Potentiodynamic and Nanoindentation respectively. The variation in the weight percentages of strontium carbonate in hydroxyapatite on a titanium substrate was used to investigate the beneficial effect of strontium on surface modification in biological application such as to improve hardness of dentures and prevention of cavities, menopause bone loss and enhancement of remodeling. The corrosion rate, the hardness and elastic moduli of different weight percents of variation in …


Spectroscopic Study Of The Use Of Lanthanide Metalloporphyrins As Sensors For Benzene And Acetonitrile Detection In Aqueous Studies, Jr Carlos Crawford Jan 2013

Spectroscopic Study Of The Use Of Lanthanide Metalloporphyrins As Sensors For Benzene And Acetonitrile Detection In Aqueous Studies, Jr Carlos Crawford

Theses

This work entails the research on lanthanide metalloporphyrins for their potential use as chemical sensors for benzene and acetonitrile. This research is of importance due to the health implications that benzene and acetonitrile cause; benzene is a known carcinogen and acetonitrile is a known lung irritant. The use of UV-Vis spectroscopy, Fluorescence spectroscopy, Gaussian DFT, and X-ray diffraction crystallography were used in the characterization and analysis of the lanthanide porphyrin complexes. Europium, terbium, dysprosium, cerium, and gadolinium were the lanthanides used in conjunction with 5,10,15,20-tetraphenylporphyrin, TPP and 5,10,15,20 tetrakissulfonato porphyrin, TBSP. Based on the luminescence spectroscopy and UV-Vis spectroscopy data, …


Teacher Reading Motivation Practices, Ashley Risinger Jan 2013

Teacher Reading Motivation Practices, Ashley Risinger

Theses

The purpose of this study is to investigate the subject of reading motivation and to determine if teachers at one middle school in North Carolina are incorporating strategies into their curriculum that may increase students' reading motivation. Reading motivation can influence students' reading comprehension, and if many students have negative feelings about reading or have decreased reading motivation, their comprehension may be directly affected. Teachers of all content areas need to attempt to increase students' reading motivation. In order to determine what teachers are doing to increase students' reading motivation, the teachers were given a survey that investigated teaching practices …


Towards Understanding Cytotoxicity And Cellular Uptake Of Engineered Nanomaterials, Komal Sudam Garde Jan 2013

Towards Understanding Cytotoxicity And Cellular Uptake Of Engineered Nanomaterials, Komal Sudam Garde

Theses

With a widespread use of nanomaterials in various manufacturing applications including consumer goods, semiconductor industry and pharmaceuticals, the safety of Engineering Nanomaterials (ENs) is a vital area of research. It is extremely important to analyze the risks posed by ENs in order to optimize design and/or control their use. The overarching goal of this work is to understand the cytotoxicity and cellular uptake potential of specific EN of well characterized physicochemical properties. Towards this objective, the specific aims of this project are to (a) comprehensively characterize the physical and chemical properties of starting ENs, (b) study their dose and time-course …


Experimental Investigation And Aspen Plus Simulation Of The Msw Pyrolysis Process, Emmanuel Ansah Jan 2013

Experimental Investigation And Aspen Plus Simulation Of The Msw Pyrolysis Process, Emmanuel Ansah

Theses

Municipal solid waste (MSW) is a potential feedstock for producing transportation fuels because it is readily available using an existing collection/transportation infrastructure and fees are provided by the suppliers or government agencies to treat MSW. North Carolina with a population of 9.4 millions generates 3.629 million metric tons of MSW each year, which contains about 113,396,356 TJs of energy. The average moisture content of MSW samples is 44.3% on a wet basis. About 77% of the dry MSW mass is combustible components including paper, organics, textile and plastics. The average heating values of MSW were 9.7, 17.5, and 22.7 MJ/kg …


Using Multiple Air Models To Form A Superensemble, Frank Gronwald Jan 2013

Using Multiple Air Models To Form A Superensemble, Frank Gronwald

Theses

Determining the level of air pollution is a modern day necessity for government regulators and industrialized sources. Air dispersion models are often used to determine the concentration of a pollutant. However changing conditions and several assumptions made by the models limit their accuracy at various times. This research proposed combining four different air dispersion models (Gaussian Plume, Variable K Theory, Box, and AFTOX) into a superensemble. Since the superensemble is typically more accurate than its member models, the end result should be a more accurate prediction under any condition. In the interest of evaluating performance, the change in accuracy was …


Rating Curve Development And Multivariate Statistical Analyses Of Stream Water Quality In Greensboro, North Carolina, Bhasker Jha Jan 2013

Rating Curve Development And Multivariate Statistical Analyses Of Stream Water Quality In Greensboro, North Carolina, Bhasker Jha

Theses

A suite of regression models were tested for the construction of rating curves and constituent load estimation for 17 water quality parameters monitored at 16 stations regularly since 1999 by the City of Greensboro in North Carolina. Best models were selected based on the statistical evaluation within the framework of the LOAD ESTimator (LOADEST) model. The constituent prediction varied from the "true load" by -“6% to 16% for Nitrate; -14% to +12% for Nitrite; -6% to 0% for Total Dissolved Solids (TDS); -2% to 9% for Total Kjeldahl Nitrogen (TKN); -22% to 9% for Total Phosphorus (TP); and -51% to …


The Role Of Crude Rosehip Extracts In The Regulation Of African-American Breast Cancer Cell Proliferation, Tonisha Lestar Coburn Jan 2013

The Role Of Crude Rosehip Extracts In The Regulation Of African-American Breast Cancer Cell Proliferation, Tonisha Lestar Coburn

Theses

Triple Negative Breast Cancer (TNBC), an aggressive form of breast cancer, has abnormal therapeutic results; leading to the need for unique treatment methods. Currently TNBC has no specific targeted therapy and has limited response to other chemotherapeutics. Plant extracts have shown to be useful as chemopreventive agents due to their disruption of pro-survival and proliferative mechanisms on cancer cells. Rosehip extracts have shown anti-proliferative activity against cancer cells in vitro. We hypothesized that rosehip extracts will inhibit cell proliferation in triple negative breast cancer cell lines at varying concentrations. Therefore, this study was designed to investigate the effect of rosehip …


Information And Communications Technology Based Solution To Rank Emergency Hospitals, Taneaka Anesha Jenkins Jan 2013

Information And Communications Technology Based Solution To Rank Emergency Hospitals, Taneaka Anesha Jenkins

Theses

With the advent of smart phone technologies, the healthcare industry finds it challenging to keep up with technology demands. In the medical domain, patients are experiencing longer wait times for medical treatment. A basis of dissatisfaction with healthcare, often observed by patients, is the amount of time they wait during a visit. The wait times have a greater delay within medical emergency facilities. Current medical wait time applications may encourage patients to be seen quickly but does not necessarily offer quality care or other aspects of their visits. The amount of time a patient experiences in an emergency facility could …


Use Of Crumb Rubber To Improve Thermal Efficiency Of Construction Materials, Ashraf Fadiel Jan 2013

Use Of Crumb Rubber To Improve Thermal Efficiency Of Construction Materials, Ashraf Fadiel

Theses

Motivated by the tremendous trend toward green environment and to reduce the effect of scrap tires on the environment, this research is an attempt to find a practical and environmentally sound solution of the problem of scrap tires. A few literatures are available about the effect of crumb rubber on thermal conductivity (k-value) of mortar. Furthermore, almost there is no studies have considered the effect of crumb rubber on the thermal properties of gypsum materials. For this purpose, an experimental program was established to investigate the amount and size of crumb rubber (rubber obtained from recycling scrap tires) on the …


Consumer Acceptability And Storage Stability Of Cupcake Supplemented With Fish Oil Emulsion, Olariyike A. Fasanya Jan 2013

Consumer Acceptability And Storage Stability Of Cupcake Supplemented With Fish Oil Emulsion, Olariyike A. Fasanya

Theses

Omega-3 fatty acid (fish-oil) has gained attention as a functional food, and it is one of the best supplements used by several researchers to improve the nutritional value of different food products such as yogurt. The study was conducted to determine the effect of fish-oil emulsion on the physical attributes of shortened cupcake (control cake and five treatments) with different whey protein isolate concentrations. Emulsion concentration in each treatment included (1) 250mg Fish-oil + 0.5% Xanthan gum, (2) 250mg Fish-oil + 5% WPI, (3) 250mg Fish-oil +10% WPI, (4) 250mg Fish-oil + 0.5% Xanthan-gum + 5% WPI, and (5) 250mg …


Investigating Moringa Oleifera Lam As A Dietary Supplement To Promote Immune Health: A Mouse Model, Donja S. Smith Jan 2013

Investigating Moringa Oleifera Lam As A Dietary Supplement To Promote Immune Health: A Mouse Model, Donja S. Smith

Theses

Moringa oleifera Lam (MOL) is a tree, native to the tropics and sub-tropics of Asia and Africa. All parts are edible and because it is rich in vitamins, minerals, and antioxidants it has many nutritional benefits. For example, many of the vitamins and minerals are known to modulate immunity, suggesting that MOL could be a good dietary supplement to boost immunity. Our lab is interested in identifying natural products that can be used to enhance immunity and health among animals. Therefore, the objective of this study was to investigate immune modulation by Moringa using a mouse model. Two trials were …


Investigating The Apoptotic Response Of Triple Negative Breast Cancer Cells To Styrene, A Potential Poly(Adp-Ribose) Polymerase (Parp) Inhibitor, Shaina Richardson Jan 2013

Investigating The Apoptotic Response Of Triple Negative Breast Cancer Cells To Styrene, A Potential Poly(Adp-Ribose) Polymerase (Parp) Inhibitor, Shaina Richardson

Theses

Triple Negative Breast Cancer (TNBC) is a rare basal-like subtype of breast cancer characterized by the absence of the estrogen (ER), progesterone (PR), and human epidermal receptor 2 (HER2) receptors which are normally targeted in other breast cancer subtypes, thereby making TNBC difficult to combat. In this study, four different styrene compounds (1.001, 1.006, 1.007, and 1.009) were used to treat TNBC cell lines HCC1806 and HCC70. Each of the compounds were composed of a 3-nitro group on the A ring and varying aryl groups on the B ring of the styrene. The breast cancer cells were exposed over a …


Systemic Optimization Of Microalgae Grown On Swine Wastewater As A Biofuel Feedstock, Rifat Hasan Jan 2013

Systemic Optimization Of Microalgae Grown On Swine Wastewater As A Biofuel Feedstock, Rifat Hasan

Theses

This research broadens the scope of research on microalgae grown on swine wastewater as it offers a combination of wastewater treatment and biofuel production. Swine wastewater is an enriched source of phosphorus, nitrogen and other organic compounds that are necessary for the growth of microalgae. While growing in swine wastewater, algae consume the nutrients from the wastewater, so there is no need of arable land for their growth. Current biofuel production relies on limited arable lands to supply feedstock making it impossible to meet the global biofuel demands without disrupting food production. Algae can potentially produce 1,000-4,000 gallons of oil/acre/yr …


Prophage Proximities To Cell Boundary Genes And Other Functional Categories In Escherichia Coli Genomes, Corey D. Young Jan 2013

Prophage Proximities To Cell Boundary Genes And Other Functional Categories In Escherichia Coli Genomes, Corey D. Young

Theses

Changes in bacterial genomes due to the integration of prophages have been proposed to be part of a symbiotic relationship. Prophage activity is common for bacterial pathogens in the fluctuating environment of animal hosts. Pathogenic bacteria have been found to have extensive variation of their bacterial cell boundary zone of components, which is the inherent interface for virulence properties of antigenicity, toxicity, and resistance. Prophages are a source of this variation, both through insertion of cargo genes via prophages into bacterial strains, and additional effects due to prophage insertions affecting the overall genomic structure. The latter scenario of genomic reorganization …


Monitoring Wear In Sliding Surfaces By Using Acoustic Emission Signals, A.B.M. Iftekharul Islam Jan 2013

Monitoring Wear In Sliding Surfaces By Using Acoustic Emission Signals, A.B.M. Iftekharul Islam

Theses

Machine parts that are in relative motion often face a state of friction in their applications. The friction, when it is uncontrolled, can cause the machine part surfaces to degrade severely. At the time of service of a machine, relative motion between surfaces sometimes can cause crack growth of fretting fatigue. Conventional methods for determining the degree of deterioration and potential crack growth formation in in-situ application have not been proven sufficiently effective. Acoustic emission (AE) based Structural Health Monitoring (SHM) has the potential for real-time detection of damage growth in structures. But in the case of sliding contact between …


Rural And Urban North Carolina Parent-Child Feeding Behaviors, Kayla J. Brooks Jan 2013

Rural And Urban North Carolina Parent-Child Feeding Behaviors, Kayla J. Brooks

Theses

This pilot study was conducted to describe parental feeding factors and explore the association between these factors and region of residence. Data was collected from 60 parents of children ages 2-11 in the form of a self-administered questionnaire. Thirty participants resided in a rural community and 30 resided in an urban community in North Carolina. Of the respondents, 87% were mothers, 50% were African Americans, 25% were Caucasians, and 20% were Hispanic Americans. This study’s findings indicated a significant difference in the frequency of consumption of home cooked meals (p=0.002). The intake of fruits (p=0.000), vegetables (p=0.001), meat, fish and …


Are We Sick Yet: Assessing Consumer Mortality From Food Contamination In Multiple Distribution Channels, Raquel T. Teasley Jan 2013

Are We Sick Yet: Assessing Consumer Mortality From Food Contamination In Multiple Distribution Channels, Raquel T. Teasley

Theses

According to the Center for Disease Control approximately 48 million people get sick from food-borne illnesses per year. In 2011, about 80% of illnesses were triggered by unspecified agents transmitted through food. Food contaminations put customers at risk and can be detrimental to the economy since customers rely on the fact that the food system is reliable and resilient. This research aims to compare the vulnerabilities of three food supply chain distribution channels: food retail, food service and food manufacturing. Distribution channels are the last nodes in the supply chain and they dictate how many people interact with contaminated products. …


Wireless Sensor Networks And Data Fusion For Structural Health Monitoring Of Aircraft, Tori Romell Patterson Jan 2013

Wireless Sensor Networks And Data Fusion For Structural Health Monitoring Of Aircraft, Tori Romell Patterson

Theses

This thesis discusses an architecture and design of a sensor web to be used for structural health monitoring of an aircraft. Also presented are several prototypes of critical parts of the sensor web. The proposed sensor web will utilize sensor nodes situated throughout the structure. These nodes and one or more workstations will support agents that communicate and collaborate to monitor the health of the structure. Agents can be any internal or external autonomous entity that has direct access to affect a given system. For the purposes of this document, an agent will be defined as an autonomous software resource …


Assessing The Security Posture Of Openemr Using Capec Attack Patterns, Francis Enoch Akowuah Jan 2013

Assessing The Security Posture Of Openemr Using Capec Attack Patterns, Francis Enoch Akowuah

Theses

Attack patterns describe the common methods of exploiting software. Good software engineering practices and principles alone are not enough to produce secure software. It is also important to know how software it attacked and to guard against it. Knowledge of attack patterns provides a good perspective of an attacker, thus enabling developers and testers to build secure software. CAPEC list is a taxonomy of attack patterns which we believe can enhance security testing. This research seeks to assess the security posture of OpenEMR 4.1.1, an open source Electronic Medical Record (EMR) system, based on CAPEC attack patterns. Five categories of …


Hemocompatibility Of Magnesium Alloys, Nevija A. Watson Jan 2013

Hemocompatibility Of Magnesium Alloys, Nevija A. Watson

Theses

There are over 15 million people living in the United States with cardiovascular disease (CVD). The standard treatment for CVD is stent angioplasty, traditionally bare metal stents have been used for this procedure however they are permanent and can lead to in-stent restenosis. Biodegradable bare metal stents are a suggested solution to this problem because they will degrade over time. Magnesium alloys are the most clinically advanced materials for biodegradable bare metal stents. They have been tested in various clinical trials with promising biocompatibility results; however materials degrade before full healing has occurred. The alloying of magnesium with elements such …


Evaluation Of Fc Receptor Genes In Bovine Neutrophils, Jamie S. Williams Jan 2013

Evaluation Of Fc Receptor Genes In Bovine Neutrophils, Jamie S. Williams

Theses

Receptors for the Fc portion of IgG, Fc receptors (FcR) are found on immune cells and contribute to protective functions of the immune system. The FcγRs (I, II and sub isoforms) bind specifically to IgG molecules and are important due to stimulating effector cells to destroy pathogens by phagocytosis and intracellular killing. The SYK kinase is critical for FcγR mediated phagocytosis and signal transduction in cells. Neutrophils contain a heterogeneous population of FcR. The objectives of this study were to evaluate genetic variation and the impact of IgG binding on transcription of FcγR and secreted levels of phosphorylated Syk between …


A Study Of Cytocompatibility And Biodegradability Of Az31 Magnesium Alloy In Simulated Airway Surface Lining Fluid, Daniel R. Owuor Jan 2013

A Study Of Cytocompatibility And Biodegradability Of Az31 Magnesium Alloy In Simulated Airway Surface Lining Fluid, Daniel R. Owuor

Theses

The nature of magnesium alloys to degrade is attributed to the high oxidative corrosion rates which are attractive for a biodegradable medical implant since they will avoid a removal surgery by gradually degrading and being absorbed by the body. In this thesis project, the biocorrosion characteristics of AZ31 Mg alloy are investigated in a simulated physiological solution mimicking the airway surface lining fluid. Particular attention was focused on the effect of carbonate ions present in the solution and porcine stomach mucin added to the test solution to create an in vitro model of the epithelial mucus surfaces mimicking the epithelial …


Comparative Study Of Sheep And Goat Innate Immune Responses On Pasture, Randall Merriott Jan 2013

Comparative Study Of Sheep And Goat Innate Immune Responses On Pasture, Randall Merriott

Theses

The objective of this study was to evaluate the innate immune response in goats co-grazed with St. Croix sheep. Boer goats (20) and St. Croix sheep (10) were co-grazed on the same pasture. A second group of Boer goats (10) were grazed on a separate pasture. On days 0 and 56 of the study body weights, FAMACHA© scores, blood (for packed cell volume and white blood cell differentials) and fecal samples (for fecal egg counts) were collected and the data analyzed using SAS PROC GLM. To evaluate the goat’s infection status blood from sheep and goats with low infection (7) …


Combining High Speed Imaging And Acoustic Emission Analysis For Crack Growth In Thick Samples, Jr. Michael Gillespie Jan 2013

Combining High Speed Imaging And Acoustic Emission Analysis For Crack Growth In Thick Samples, Jr. Michael Gillespie

Theses

Over 80% of components in a system that undergo fatigue cycling fail due to cracking. Acoustic emission (AE) has become a major resource in non-destructive testing (NDT) for the detection, location, and quantification of cracking events. Normally, AE an event is referred to as crack growth, fretting, or friction. As an AE signal progress through material, the waveform converts into several modes; additionally, attenuation and dispersion may also change the waveform. Furthermore, the noise may intrude into the signal in such a way that by time the signal from the source arrives at the sensor the waveform becomes very complex. …


Effect Of Soil And Irrigation Water On Microbial Quality Of Fresh Produce Grown In North Carolina, Tracie Davis Jan 2013

Effect Of Soil And Irrigation Water On Microbial Quality Of Fresh Produce Grown In North Carolina, Tracie Davis

Theses

Foodborne outbreaks involving Listeria monocytogenes, Salmonella enteritidis, and E. coli O157:H7 from contaminated fresh produce have been increasingly recognized all over the world. The purpose of this research was to determine the effect of irrigation water and soil on microbial quality of leafy greens and tomatoes grown in different parts of North Carolina (NC). Soil and water samples were collected from 4 small farms located in NC and inoculated onto selective media (TSA for total aerobic count, XLT4 for Salmonella spp. (SS), and MacConkey for total E. coli species, EC). All plates were incubated for 48 hours at 37°C. Following …


Skin Cancer - Education And Prevention: The Role Of Social Marketing, Tim Crowley Jan 2013

Skin Cancer - Education And Prevention: The Role Of Social Marketing, Tim Crowley

Theses

Skin cancer is the most common cancer in Ireland and worldwide. Skin cancer rates have been steadily rising in recent times. The high use of sunbeds in both Ireland and the UK is quite worrisome. Skin cancer is caused by over exposure to UV rays or through the use of sunbeds and as a result it is actually a highly preventable disease. It is estimated that 90-95% of all skin cancers are preventable. This thesis focuses on the use of social marketing in order to educate people on the dangers of skin cancer with the eventual aim of making recommendations …