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Spotted Fever Group Rickettsiae, Rickettsia Parkeri And "Candidatus Rickettsia Andeanae", Associated With The Gulf Coast Tick, Amblyomma Maculatum Koch, Flavia Araujo Girao Ferrari Aug 2012

Spotted Fever Group Rickettsiae, Rickettsia Parkeri And "Candidatus Rickettsia Andeanae", Associated With The Gulf Coast Tick, Amblyomma Maculatum Koch, Flavia Araujo Girao Ferrari

Theses and Dissertations

The public health and veterinary importance of Gulf Coast ticks, Amblyomma maculatum Koch (1844) have become more apparent during the last several decades. In addition, new records of this three-host ixodid tick presently show a geographic distribution throughout much of the southern United States. Rickettsia parkeri, a spotted fever group rickettsia (SFGR) that is commonly found infecting the Gulf Coast tick, was only recently recognized as a human pathogen. Over the last decade, more than 20 human cases of disease caused by R. parkeri have been recognized in the Americas, all of which were similar in presentation to mild Rocky …

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Sustainable Construction Practices Of Intentional Communities: A Pilot Investigation In Loudoun County, Virginia And Frederick County, Maryland, Jason Lee Shedd Aug 2012

Sustainable Construction Practices Of Intentional Communities: A Pilot Investigation In Loudoun County, Virginia And Frederick County, Maryland, Jason Lee Shedd

Theses and Dissertations

This project investigated the sustainability of homes within three intentional communities. Semi-structured interview and photographic walkthroughs examined the variability of architectural and technological approaches toward sustainability. These include: passive solar design, green roofs, radiant flooring, composting toilets, ground assist heat pumps, solar water heaters, multiamily units and modular construction. It was hypothesized that variation in sustainable construction is related to socioeconomic status and that economics would be a constraint. This project investigated whether communities were transmitting their practices to wider society, if individuals were copying vernacular architecture and if architectural practices followed individual beliefs regarding sustainability. It was found that …

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Influence Of Fresh And Processed Tannic Acid, And Fresh Tannic Acid, And Fresh Tannic Acid Plus Phosphate On Catfish Fillet Color, Microbial Shelf Life And Oxidation, Guilherme Filizzola Cury Aug 2012

Influence Of Fresh And Processed Tannic Acid, And Fresh Tannic Acid, And Fresh Tannic Acid Plus Phosphate On Catfish Fillet Color, Microbial Shelf Life And Oxidation, Guilherme Filizzola Cury

Theses and Dissertations

Fresh tannic acid (5%) (FTA), heated to 121C for 15 min (PTA), and the combination of FTA and phosphates (FPH) were vacuum tumbled with catfish fillets and compared to water tumbled fillets (CTL). Fillets treated with FTA or PTA had higher whiteness whereas all treated fillets had higher chroma values than CTL, resulting in a deeper yellow color fillet. Microbial shelf life (CTL, log CFU/g, APC) of FTA and PTA treated fillets was extended by two days, to11.8 d at 4C, but FPH fillets did not reach over 5 log CFU/g for 15 d of storage. Fat from FTA and …

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Measurement Of Catch-Related Attitudes And Their Influence On Angler Preferences, Clifford Patton Hutt Aug 2012

Measurement Of Catch-Related Attitudes And Their Influence On Angler Preferences, Clifford Patton Hutt

Theses and Dissertations

The primary purpose of my dissertation was to assess two competing models of catch-related attitudes (CRA) of recreational anglers for: 1) valid psychometric measurement, 2) consistency of CRA under different angling contexts, and 3) effect of CRA on angler preferences. Data came from a statewide survey of 6,924 licensed Texas anglers, and a follow-up survey of 1,078 freshwater catfish anglers identified by the statewide survey. I used confirmatory factor analysis to determine that a 4-construct model of CRA provided better fit to the data than a 3-construct model, and was configural and metric invariant across gender, ethnic, and angling context …

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Fused-Ring Heterocycle Syntheses From Thiazole, Oxazole, Benzoxazole, And Benzothiazole Derivatives And Trifluoroacetylations Of N-Methyl Cyclic Ketene-N,O/S-Acetals: Attempted Syntheses Of Functionalized Polymers From Plant-Derived 5-(Hydroxymethyl)Furfural, Hondamuni Ireshika Chathurani De Silva Aug 2012

Fused-Ring Heterocycle Syntheses From Thiazole, Oxazole, Benzoxazole, And Benzothiazole Derivatives And Trifluoroacetylations Of N-Methyl Cyclic Ketene-N,O/S-Acetals: Attempted Syntheses Of Functionalized Polymers From Plant-Derived 5-(Hydroxymethyl)Furfural, Hondamuni Ireshika Chathurani De Silva

Theses and Dissertations

There are two sections to this research dissertation. Part one includes syntheses of fused-ring heterocycles derived from thiazole, oxazole, benzoxazole and benzothiazole derivatives and trifluoroacetylations of in situ generated N-methyl cyclic ketene-N,O/Sacetals. Attempted functionalized polymer syntheses from plant-derived 5-(hydroxymethyl) furfural are discussed in part two. Three 2-methylthiazoles, 2,4,5-trimethyloxazole, 2-methylbenzoxazole and 2- methyl-benzothiazole were each reacted with benzoyl chloride in acetonitrile/triethylamine to generate benzyl-vinyl esters. Base hydrolysis of these benzyl-vinyl esters formed 2-(heterocyclic)-1-phenylethenols which exist in both ketoenol tautomeric forms. These tautomers were used as starting materials for fused-ring heterocycle syntheses. Each tautomeric pair react with dimethyl acetylenedicarboxylate in methanol giving …

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Aberrant Placental Immune Parameters In The Feline Immunodeficiency Virus (Fiv)-Infected Cat Suggest Virus-Induced Changes In Leukocyte Function, Lyndon Bart Chumbley Aug 2012

Aberrant Placental Immune Parameters In The Feline Immunodeficiency Virus (Fiv)-Infected Cat Suggest Virus-Induced Changes In Leukocyte Function, Lyndon Bart Chumbley

Theses and Dissertations

Regulatory T cells (Tregs), interleukin 17-producing T helper cells (Th17 cells), and other immune cells play important roles in the maintenance of pregnancy, and their function is impacted by HIV infection. I hypothesized that FIV-infection may likewise alter placental T cell gene expression causing aberrant immune function and compromised pregnancy. The purpose of this project was to evaluate the expression placental immunomodulators related to Treg and Th17 cell function in the FIV-infected cat model. Gene expression was quantified in placenta and serum using quantitative PCR and ELISA, respectively. Abnormal expression of cytokines was frequently associated with infection and fetal nonviability, …

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Analysis Of Classes Of Singular Boundary Value Problems, Eunkyung Ko Aug 2012

Analysis Of Classes Of Singular Boundary Value Problems, Eunkyung Ko

Theses and Dissertations

In this dissertation we study positive solutions to a singular p-Laplacian elliptic boundary value problem on a bounded domain with smooth boundary when a positive parameter varies. Our main focus is the analysis of a challenging class of singular p-Laplacian problems. We establish the existence of a positive solution for all positive values of the parameter and the existence of at least two positive solutions for a certain explicit range of the parameter. In the Laplacian case, we also prove the uniqueness of the positive solution for large values of the parameter. We extend our existence and multiplicity results to …

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Assessing The Potential For Increased Capacity Of Combined Heat And Power Facilities Based On Available Corn Stover And Forest Logging Residue In Mississippi, Selvarani Radhakrishnan Aug 2012

Assessing The Potential For Increased Capacity Of Combined Heat And Power Facilities Based On Available Corn Stover And Forest Logging Residue In Mississippi, Selvarani Radhakrishnan

Theses and Dissertations

The amount of available biomass feedstock and associated cost components were analyzed to determine the potential increase in energy capacity of two existing combined heat and power plants in Mississippi. The amount of corn stover and forest logging residue within a 10-mile radius can satisfy the existing requirements of CHP plants in Scott (1 MW) and Washington counties (5 MW). Transporting feedstock within a smaller source area had lower transportation costs, but higher total unit cost than the two other source buffer scenarios. However, capital costs associated with higher plant capacities were significantly higher and plant expansion may not be …

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Use Of Whey-Based Edible Coatings As Antioxidative And Antimicrobial Agents, Sashie Weerasinghe Aug 2012

Use Of Whey-Based Edible Coatings As Antioxidative And Antimicrobial Agents, Sashie Weerasinghe

Theses and Dissertations

Edam and Cheddar whey were thermized (T) for different time periods (5–30 min) at 70 degrees Celsius, vacuum evaporated, and spray dried to obtain whey powders (WP). Native and thermized WP were evaluated for antioxidative properties. Edam and Cheddar WP significantly reduced thiobarbituric acid-reactive substances (TBARS) and peroxide value (PV) in ferric-catalyzed soybean oil emulsions. Thermization significantly improved antioxidative properties of WP with 5T, 10T, and 15T treatments showing better protective effects compared to 20T and 30T treatments. Based on these results, native (0T) and thermized (5T, 10T, and 15T) Edam and Cheddar WP coatings, with and without enzymatically hydrolyzed …

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Case Study Of East Mississippi Community College's Plan To Assist The Sara Lee Corporation Employees Due To Plant Closing, Bruce J. Hanson Aug 2012

Case Study Of East Mississippi Community College's Plan To Assist The Sara Lee Corporation Employees Due To Plant Closing, Bruce J. Hanson

Theses and Dissertations

The aim or purpose of this study was to statistically determine whether there were significant differences in obtaining employment and wages after training provided by East Mississippi Community College (EMCC). The training was specifically provided to employees of Sara Lee Corporation, LLC, after the massive layoff when the company closed its plant in West Point, Clay County, Mississippi. The plant, a food-processing entity, had been in continuous operation since 1902 after it was founded by two brothers from Clay County, Mississippi. Data obtained from the Statewide Longitudinal Integrated Workforce Management System, as reported by EMCC and the Mississippi Department of …

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Computational Prediction Of Flow And Aerodynamic Characteristics For An Elliptic Airfoil At Low Reynolds Number, Varun Chitta Aug 2012

Computational Prediction Of Flow And Aerodynamic Characteristics For An Elliptic Airfoil At Low Reynolds Number, Varun Chitta

Theses and Dissertations

Lifting surfaces of unmanned aerial vehicles (UAV) are often operated in low Reynolds number (Re) ranges, wherein the transition of boundary layer from laminar-to-turbulent plays a more significant role than in high-Re aerodynamics applications. This poses a challenge for traditional computational fluid dynamics (CFD) simulations, since typical modeling approaches assume either fully laminar or fully turbulent flow. In particular, the boundary layer state must be accurately predicted to successfully determine the separation behavior which significantly influences the aerodynamic characteristics of the airfoil. Reynolds-averaged Navier-Stokes (RANS) based CFD simulations of an elliptic airfoil are performed for time-varying angles of attack, and …

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Crappie Population Characteristics Relative To Inundation Of Floodplain Habitats In Reservoirs, Jonah Dennis Dagel Aug 2012

Crappie Population Characteristics Relative To Inundation Of Floodplain Habitats In Reservoirs, Jonah Dennis Dagel

Theses and Dissertations

Catch rates of age-0 and adult crappies Pomoxis spp. were compared between floodplains and coves to determine if differences in densities existed between habitats, and to determine if water levels influenced density relationships. Habitat in a cove and a floodplain of Enid Reservoir was mapped to describe differences in vegetation. Adult crappies were collected with electrofishing and age-0 crappies were collected with trap nets. Coves had the greatest spring densities of adults in 2009 and 2010, whereas floodplains attracted adults earlier in the spawning season. Recruitment of age-0 crappies was related inversely to high water levels during months preceding the …

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Effects Of Glycine-Arginine-Alpha-Ketoisocaproic Acid Calcium (Gakic) On Maximal Strength And Multiple Bouts Of Resistance Exercise, Laura Anne Hilton Aug 2012

Effects Of Glycine-Arginine-Alpha-Ketoisocaproic Acid Calcium (Gakic) On Maximal Strength And Multiple Bouts Of Resistance Exercise, Laura Anne Hilton

Theses and Dissertations

Glycine-arginine-alpha-ketoisocaproic acid calcium (GAKIC) is an amino acid combination postulated to improve dynamic performance of skeletal muscle during acute, anaerobic exercise in healthy individuals. Purpose: The purpose of this study was to determine the ergogenic effects of GAKIC ingestion on resistance training performance in both trained male and female participants. Methods: Utilizing a double-blinded, crossover design, male participants completed a lower body leg press resistance exercise protocol and female participants completed a lower body leg extension resistance exercise protocol once using 10.2 g GAKIC and the other with a placebo. Results: A significant increase in TLV after GAKIC supplementation was …

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A Community Of Women In Clorinda Matto De Turner's Indole, Cordelea Ann Haecker Aug 2012

A Community Of Women In Clorinda Matto De Turner's Indole, Cordelea Ann Haecker

Theses and Dissertations

The focus of this study is Clorinda Matto de Turner’s novel, Índole. After an introduction to the topic in Chapter I, Chapter II will explore the feminist ideas that Matto de Turner described in her essays and other short writings. It will specifically deal with the idea of a community of women, gender and androgyny, Matto de Turner’s appeal for women’s rights, the concept of “la mujer peruana”, and the duties of women workers. In Chapter III, I will analyze Índole and examine the domestic community that the novel presents. I will discuss female morality and responsibility for the morality …

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A Computational Study Of Diesel And Biodiesel Combustion And Nox Formation In A Light-Duty Compression Ignition Engine, Zihan Wang Aug 2012

A Computational Study Of Diesel And Biodiesel Combustion And Nox Formation In A Light-Duty Compression Ignition Engine, Zihan Wang

Theses and Dissertations

Diesel and biodiesel combustion in a light duty compression ignition engine were simulated during a closed cycle, using a commercial computational fluid dynamics (CFD) code, CONVERGE. The corresponding computational domain was constructed for the engine based on combustion chamber geometry and compression ratio measurements. Submodels were calibrated for simulation. The results were able to capture the experimental pressure and apparent heat release rate trends for both fuels over a range of engine loads and fuel injection timings. NOx emissions trends were captured for diesel, while under-predicted for biodiesel. The NOx trends were also analyzed based on the thermal NO mechanism. …

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Sediment And Phosphorus Dynamics Behind Weirs In Agricultural Drainage Ditches, Elizabeth Louise Usborne Aug 2012

Sediment And Phosphorus Dynamics Behind Weirs In Agricultural Drainage Ditches, Elizabeth Louise Usborne

Theses and Dissertations

Low grade rip rap weirs installed in agricultural surface drainage ditches manage downstream eutrophication by slowing water flow, allowing sediments time to settle out of the water column and phosphorus (P) to sorb to soil. A laboratory experiment was conducted in microcosm chambers to simulate increased hydraulic residence time caused by weirs and two field studies were conducted to compare experimental data with field data and determine sediment deposition rates. One field study monitored weirs monthly after installation and the other measured weirs of varying ages. Weirs retained significantly more water and sediment than controls. Longer inundation times led to …

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Assessment Of The Lactation Index For Managing White-Tailed Deer Populations, Kamen Lee Campbell Aug 2012

Assessment Of The Lactation Index For Managing White-Tailed Deer Populations, Kamen Lee Campbell

Theses and Dissertations

I analyzed precision and accuracy of lactation data to reflect actual fawn recruitment for various levels of fecundity, neonatal mortality, harvest intensity, and hunter selectivity. I evaluated and developed a correction equation to adjust for harvest date effects on lactation detectability. I compared metrics of site-specific fawn recruitment (e.g., lactation rates, hunter observation fawn-to-doe ratios, and post-season fawn-to-doe ratios) among themselves, and to site-specific indices of carnivore abundance, for 18 properties across Mississippi and Alabama. Accuracy of lactation rates are compromised due to variation at minimal harvest intensity and insensitivity to change in fetal rate or neonatal mortality. Lactation data …

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Biofacies Analysis Of Late Mississippian Ostracodes And Their Use As Paleoenvironmental Indicators In The Bluefield Formation, Mercer County, West Virginia, Benjamin T. Stencil Aug 2012

Biofacies Analysis Of Late Mississippian Ostracodes And Their Use As Paleoenvironmental Indicators In The Bluefield Formation, Mercer County, West Virginia, Benjamin T. Stencil

Theses and Dissertations

The Bluefield Formation (Chesterian, Upper Mississippian) of the Appalachian Basin is a lithologically variable unit, composed of mudstones lithofacies with subordinate amounts of sandstone and limestone. By analyzing sedimentology and the prominence of ostracodes, an ostracode biofacies model was generated that provides a large-scale paleoenvironmental framework for the Bluefield Formation. Three ostracode assemblages were defined in an effort to identify environmental conditions during deposition of the Bluefield: Assemblage I - Polytylites Assemblage; Assemblage II - Sansabella Assemblage; and Assemblage III - Whipplella Assemblage. The assemblage distributions indicate that nearshore transitional marine environments were common and normal open marine conditions were …

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Cellulosic Fiber-Derived Carbon Catalyzed By Iron Oxide Nanoparticles, Wen Che Aug 2012

Cellulosic Fiber-Derived Carbon Catalyzed By Iron Oxide Nanoparticles, Wen Che

Theses and Dissertations

The objective of this research was to study the catalytic graphitization of cellulose fibers coated with iron oxide nanoparticles. Bleached cellulose fibers and iron oxide nanoparticles coated cellulose fibers were pyrolyzed at five elevated temperatures. The crystallographic structures of carbon-encapsulated iron oxide nanoparticles were then investigated by the following techniques: Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Raman Spectroscopy, Transmission Electron Microscopy (TEM), and Selected-Area Electron Diffraction (SAED). The graphitization of cellulosic fibers was enhanced by the presence of iron oxide nanoparticles. Moreover, iron oxide nanoparticles deposited on cellulosic fiber samples pyrolyzed above 800°C produced graphitic structures. TEM and XRD …

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Chronobiology Of Lygus Lineolaris (Heteroptera: Miridae): Implications For Rearing And Pest Management, Sarah Rose Self Aug 2012

Chronobiology Of Lygus Lineolaris (Heteroptera: Miridae): Implications For Rearing And Pest Management, Sarah Rose Self

Theses and Dissertations

This research project consisted of three primary objectives: (1) Improve rearing methods for L. lineolaris, (2) Determine if selected behaviors displaying photoperiodicity are under circadian control, and (3) Estimate phase angle shifts of selected circadian rhythms, in an effort to contribute toward the future improvement of current integrated pest management techniques. Improving rearing methods was accomplished in three areas: (1) Estimating the optimal stocking rate to maximize production while maintaining acceptable insect quality as a function of photoperiodic regime, (2) Estimating fecundity at the optimal stocking rate and photoperiodic regime, and (3) Determining the timing of oviposition, mating, feeding and …

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Comparing Recreational Amenities Of University Towns And Non-University Towns, Timothy Allen Bisantz Aug 2012

Comparing Recreational Amenities Of University Towns And Non-University Towns, Timothy Allen Bisantz

Theses and Dissertations

Recreational amenities present great value for the community. Their existence provides an improved quality of life, offers a connection with the natural surroundings, and facilitates a healthy lifestyle. While communities continue to create and operate recreational facilities/areas, the presence of such facilities may have indirect effects on the general population. Specifically, this thesis will compare the presence of recreational amenities in metropolitan statistical areas that contain universities which are a part of the Association of American Universities (AAU) and metropolitan statistical areas with similar populations and geographic characteristics that don’t contain an AAU-member institution.

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Degree Of Pyritization And Methylmercury Analysis, Weeks Bay Alabama, Henry A. Stauffenberg Aug 2012

Degree Of Pyritization And Methylmercury Analysis, Weeks Bay Alabama, Henry A. Stauffenberg

Theses and Dissertations

Methylmercury (MeHg) production is magnified in the natural environment by geochemical influxes and an active sulfate reducing bacteria community. It has been found that the presence of sulfides, excess nutrients, and the type of depositional environment (normal marine or euxinic) greatly influences MeHg production and degree of pyritization (DOP). The aim of this research is to investigate a possible connection between MeHg accumulation and the DOP in Weeks Bay sediment. Collected sediment samples have confirmed a significant presence of total reduced sulfides, inorganic mercury, reactive iron, and total organic carbon. Pyritization results indicate a normal marine environment and, of the …

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Dental Microwear And Diet Change During The Greek Bronze And Iron Age In Coastal East Lokris, Greece, J Rocco De Gregory Aug 2012

Dental Microwear And Diet Change During The Greek Bronze And Iron Age In Coastal East Lokris, Greece, J Rocco De Gregory

Theses and Dissertations

This research utilizes two analytical methods to examine the dental microwear of two skeletal samples from East Lokris, Greece. The samples are from the Bronze age/Early Iron age sites of Mitrou and Tragana Agia Triada. The samples were tested according to various temporal and geographic designations in an attempt to determine if any differences in dietary constituent could be discerned from their dental microwear signatures. Both traditional dental microwear analysis using a scanning electron microscope and dental microwear texture analysis employing scale sensitive fractal analysis and a Sensofar Plµ Confocal Profiler were used. The results of analysis for both methods …

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Evaluation Of Field-Scale Soil Organic Carbon And Watershed-Scale Bioenergy Crop Production In Mississippi, Sarah Duffy Aug 2012

Evaluation Of Field-Scale Soil Organic Carbon And Watershed-Scale Bioenergy Crop Production In Mississippi, Sarah Duffy

Theses and Dissertations

To date only a limited number of studies have been done at the field level to observe the effects of agricultural management practices on carbon sequestration, water quality, and bioenergy crop yield in Mississippi. Therefore, the goals of this study were to monitor soil organic carbon (SOC) levels at the field scale and perform a comprehensive analysis of the potential environmental impacts at the watershed scale using the Soil and Water Assessment Tool (SWAT) in two watersheds located in Mississippi. It was found that SOC levels generally are affected by depth, land use, and time. The SWAT models showed good …

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Does Social Network Opinion Matter? How Implicit Theories And Social Network Opinions Can Influence Romantic Relationship Dynamics, Lauren Whitney Colvin Aug 2012

Does Social Network Opinion Matter? How Implicit Theories And Social Network Opinions Can Influence Romantic Relationship Dynamics, Lauren Whitney Colvin

Theses and Dissertations

The present study examined whether someone’s implicit theories of relationships (ITORs) has an effect on whose opinion and what type of opinion has more influence on their romantic relationship dynamics. Individuals high in destiny beliefs view relationships as either meant to be or not meant to be. Individuals high in growth beliefs think relationships take work to maintain and that problems can be overcome. Combined these form orientations- cultivation orientation where the individual is high growth/low destiny and evaluation orientation which is high destiny/low growth. I analyzed an archived dataset where participants completed Sinclair’s (2008) Social Network Opinion Scale, Lund’s …

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Ecology And Disease Potential Of The Black-Legged Deer Tick, Ixodes Scapularis Say, In Mississippi, Lauren Goltz Aug 2012

Ecology And Disease Potential Of The Black-Legged Deer Tick, Ixodes Scapularis Say, In Mississippi, Lauren Goltz

Theses and Dissertations

To assess the seasonality and disease potential of Ixodes scapularis Say in north Mississippi, ixodid ticks were collected by drag cloth method at two sites in north Mississippi weekly from August 1, 2010 through July 31, 2011 and tested for molecular evidence of disease agents via polymerase chain reaction (PCR) assay. In addition, environmental data were observed and recorded for each collection date. I. scapularis nymphs (n=6) were collected in August, September, March, and May, perhaps reflecting a seasonally bimodal distribution, while adults (n=256) were found October through May with a peak in March. No statistically significant relationship between environmental …

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Economic Evaluation Of Biofuel Production Through Bio-Gasification Power Facility Using Modeling Method, Yangyang Deng Aug 2012

Economic Evaluation Of Biofuel Production Through Bio-Gasification Power Facility Using Modeling Method, Yangyang Deng

Theses and Dissertations

Since bio-gasification is a potentially more efficient way to utilize bio-energy, the economic feasibility becomes one of the greatest issues when we apply this new technology. Evaluation of economic feasibility of a bio-gasification facility needs understanding of its production unit cost under different capacities and different working shift modes. The objectives of this study were to evaluate the unit cost of bio-syngas and biouel products at different capacities by using economic modeling method. Result showed that economic feasibility of a power facility was significantly affected by its production capacity and operating mode (one shift, two shifts, or three shifts mode). …

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Varietal Loblolly (Pinus Taeda L.) Response To Various Management Schemes And Comparison Among Genetic Improvement Levels, Billy Landis Herrin Aug 2012

Varietal Loblolly (Pinus Taeda L.) Response To Various Management Schemes And Comparison Among Genetic Improvement Levels, Billy Landis Herrin

Theses and Dissertations

Increased growth rates, wood quality, and disease resistance have been accomplished within loblolly pine (Pinus taeda L.) through genetic selection and improved management practices. Genetic engineering of trees has the potential to further improve these selections but also needs to be tested. Two studies were conducted. Study one compares three levels of genetic improvement: Mass-Control Pollinated (MCP), Second Generation Op (2nd gen), and Varietal Material. After three years the MCP material had larger mean heights, mean diameters, and mean volume than the other two genetic entities. However the top five performing varietals were about 0.5 feet taller than the MCP …

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Identifying Factors And Quantifying Their Impact On Transportation Costs Of Pre-Processes Biomass, Daniela Sofia Gonzales Aug 2012

Identifying Factors And Quantifying Their Impact On Transportation Costs Of Pre-Processes Biomass, Daniela Sofia Gonzales

Theses and Dissertations

This research presents a rail transportation cost analysis of bulk agricultural commodities (such as grain and wood chips) with similar characteristics as pre-processed biomass. This study analyzes the cost factors that affect rail pricing for shipments of bulk-commodities (such as grain) from the Midwest to various regions in the US using regression analysis theories. The rail cost equations developed from the regression analysis were used to compare the trade-offs that exist between truck, rail and barge transportation of pre-processed biomass.

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Impact Of Sodium Lactate And Acetic Acid Derivatives On The Quality Of Fresh Italian Pork Sausage Links, Courtney Alissa Crist Aug 2012

Impact Of Sodium Lactate And Acetic Acid Derivatives On The Quality Of Fresh Italian Pork Sausage Links, Courtney Alissa Crist

Theses and Dissertations

Sodium lactate and acetic acid derivatives were evaluated for their impact on fresh Italian pork sausage links using commercial pork trimmings. Treatments included: 2.5% acetic acid (48.5%) –sodium lactate mixture (51.5%) (V), 2.5% sodium lactate (60% solids) (S), control –0.02% BHA/BHT (B) and negative control –seasoning only (C). Analysis over storage included total plate count (TPC), oxidative rancidity (TBARS), sensory analysis (descriptive and consumer), cooking loss, pH, and color. The S and V treatments had lower TPC (P<0.05) from days 5 through 14 when compared to B and C. TBARS values increased (P<0.05) for treatments C, S, and V while B was did not change (P>0.05) over time. While CIE a* surface values for redness generally decreased over time for all treatments, treatment B maintained more redness …

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