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Effects Of Mechanical Bar Splices On Seismic Performance Of Reinforced Concrete Buildings, Abdullah Al Hashib Jan 2017

Effects Of Mechanical Bar Splices On Seismic Performance Of Reinforced Concrete Buildings, Abdullah Al Hashib

Electronic Theses and Dissertations

Mechanical bar splices, which are commonly referred to as couplers, are currently used in reinforced concrete structures to directly connect steel bars in lieu of conventional lap splicing. With proper detailing, couplers can be utilized to connect precast beams and columns to accelerate the construction. However, the experimental and analytical studies regarding their effect on the performance of RC moment-resisting frames (MRFs) are scarce. Current ACI 318 restricts the use of couplers in plastic hinge regions of special moment-resisting frames (SMRFs). Nevertheless, they can be incorporated at any location of the intermediate and ordinary MRFs. The seismic performance of RC …

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Modeling Of The Solid-Electrolyte Interface Layer Of Lithium Ion Batteries For Capacity Fade Using Kinetic Monte Carlo, Bigyan Khanal Jan 2017

Modeling Of The Solid-Electrolyte Interface Layer Of Lithium Ion Batteries For Capacity Fade Using Kinetic Monte Carlo, Bigyan Khanal

Electronic Theses and Dissertations

The accurate model on the growth of Solid-Electrolyte Interface (SEI) layer of Lithiumion batteries is used to study the capacity fade, ageing, and cycling life and provides significant information to ensure the battery safety. In this work, the model for SEI layer dynamics is developed using the Kinetic Monte Carlo approach, in which four major dynamical processes including adsorption, absorption, diffusion, and passivation are described by their individual rates, and determined from chemical and physical properties of materials used in the battery. Total cycle numbers to be simulated determine the number of Kinetic Monte Carlo steps. The formation of a …

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Deep Eutectic Solvents Synthesis, Characterization And Applications In Pretreatment Of Lignocellulosic Biomass, Ganesh Degam Jan 2017

Deep Eutectic Solvents Synthesis, Characterization And Applications In Pretreatment Of Lignocellulosic Biomass, Ganesh Degam

Electronic Theses and Dissertations

There has been an increased interest in green solvents and biofuels with the growing environmental awareness across the globe. Conventional methods of biofuel production involve the use of large quantities of molecular solvents and ionic liquids (ILs), but they have the drawbacks of high vapor pressure (organic solvents), toxicity, and recyclability in terms of a sustainability point of view. Deep eutectic solvents (DESs) have recently emerged as green alternatives to molecular solvents and ionic liquids (ILs). They are defined as eutectic mixtures formed between quaternary ammonium, phosphonium or sulfonium salts and hydrogen bond donors (HBDs) with the freezing temperature lower …

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Impacts Of Crop Residue And Cover Crops On Soil Hydrological Properties, Soil Water Storage And Water Use Efficiency Of Soybean Crop, Kopila Subedi-Chalise Jan 2017

Impacts Of Crop Residue And Cover Crops On Soil Hydrological Properties, Soil Water Storage And Water Use Efficiency Of Soybean Crop, Kopila Subedi-Chalise

Electronic Theses and Dissertations

Cover crops and crop residue play a multifunctional role in improving soil hydrological properties, soil water storage and water use efficiency (WUE). This study was conducted to better understand the role of crop residue and cover crop on soil properties and soil water dynamics. The study was conducted at the USDA-ARS North Central Agricultural Research Laboratory, located in Brookings, South Dakota. Two residue removal treatments that include low residue removal (LRR) and high residue removal (HRR) were established in 2000 with randomized complete block design under no-till corn (Zea mays L.) and soybean (Glycine max L.) rotation. In 2005, cover …

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Intra-Industry Trade In Agricultural Products Between The United States, Nafta And European Union Trading Partners, Shuvo Chakraborty Jan 2017

Intra-Industry Trade In Agricultural Products Between The United States, Nafta And European Union Trading Partners, Shuvo Chakraborty

Electronic Theses and Dissertations

This study provides an overview of trends and identifies country-specific determinants of intra-industry trade (IIT) between the United States (U.S.), the European Union (EU) and the North American Free Trade Agreement (NAFTA) trading partners. We analyze the food and live animal industry at the Standard International Trade Classification (SITC) revision 4 at the 4-digit level to calculate IIT and cover the period between 2007 and 2014. To determine the country-specific determinants of IIT, we used a Generalized Least Squares (GLS) random effect model. Results indicate that the size of an economy, the relative difference in level of economic development, the …

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Glulam Timber Bridges For Local Roads, Zachary Charles Carnahan Jan 2017

Glulam Timber Bridges For Local Roads, Zachary Charles Carnahan

Electronic Theses and Dissertations

The most common type of bridges on South Dakota (SD) local roads are prestressed precast double-tee bridges. Currently, there is only one double-tee girder manufacturer in South Dakota (SD). In an attempt to provide more bridge type selection options for local governments, a study was performed at South Dakota State University to investigate the feasibility and performance of new types of single-span bridges suitable for local loads with low traffic. In one part of the study, Mingo (2016) developed a fully precast bridge incorporating full-depth deck-panels and prestressed inverted bulb-tee girders. The study presented in this thesis was performed to …

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Managing Phomopsis Stem Canker Of Sunflower Using Improved Diagnosis And Quantification Of The Causal Pathogens, Taylor Rae Olson Jan 2017

Managing Phomopsis Stem Canker Of Sunflower Using Improved Diagnosis And Quantification Of The Causal Pathogens, Taylor Rae Olson

Electronic Theses and Dissertations

Phomopsis stem canker is a disease that severely affects sunflower (Helianthus annuus) in the United States. From 2001 to 2015, disease prevalence has increased from 1.5% to 61%, and two new causal agents, Diaporthe gulyae and Diaporthe stewartii, have been described along with Diaporthe helianthi, which was always regarded as the main causal pathogen of the disease. At this time, options to manage the disease are limited. Currently, no commercial sunflower hybrids have resistance to all three species of Diaporthe, and no fungicides are labeled for control of Phomopsis stem canker of sunflower in the United …

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Perimeter Cropping As A Means Of Reducing Insect Injury And Increasing Crop Yield, Brett L. Owens Jan 2017

Perimeter Cropping As A Means Of Reducing Insect Injury And Increasing Crop Yield, Brett L. Owens

Electronic Theses and Dissertations

The squash vine borer, Melittia cucurbitae Harris, (Lepidoptera: Sesiidae) is a destructive insect known to injure a broad range of cucurbit crops. Many studies have focused on insecticide management of this insect in squash (Cucurbita) and pumpkin (Cucurbita pepo Linnaeus) production; however, little work has been documented on organic approaches to reduce or eliminate injury from this pest to these crops in the Midwest. This study used trap cropping and pollinator mixtures to test whether a reduction of squash vine borer could be achieved in a specific cultivar of pumpkins, Cucurbita pepo ‘Howden’. The study was …

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A Pilot Study Of A Summer School Food Backpack Program For Students And Their Caregivers, Brittany Thompson Jan 2017

A Pilot Study Of A Summer School Food Backpack Program For Students And Their Caregivers, Brittany Thompson

Electronic Theses and Dissertations

Background: High levels of obesity among children have become the nation’s most prevalent health condition. Individuals that live in low-income areas often face multiple risk factors that can lead to obesity. Few interventions have been conducted that include school-based nutrition education and food preparation classes that are paired with a backpack of food.
Objective: Determine if the program ingredients were used at home, if the necessary cooking tools were available and if the overall awareness and motivation to eat healthier was increased. Also, too determine if student and parent responses correlate for future research.
Methods: A convivence …

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Graduate School Decisions: The Impact Of Out-Of-Class Communication On First-Generation College Students, Kaitlyn Voges Jan 2017

Graduate School Decisions: The Impact Of Out-Of-Class Communication On First-Generation College Students, Kaitlyn Voges

Electronic Theses and Dissertations

First-generation college students possess barriers within academics that may be unique to the population. This thesis seeks to understand how instructors and advisors can use the memorable messages framework to encourage first-generation college students to attend graduate school despite barriers the students may possess. Thirteen first-generation college/graduate students were interviewed regarding their decisions to attend graduate school. Specifically, interviewees were asked if they received memorable messages from an outside source which encouraged them to pursue a master’s degree. A majority of participants stated they had received a particular message from either an instructor or academic advisor. These messages tended to …

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Cbl And Cbl-B Dictate Csf-1r Endocytic Traffic And Signaling In Macrophages, Lu Huang Jan 2017

Cbl And Cbl-B Dictate Csf-1r Endocytic Traffic And Signaling In Macrophages, Lu Huang

Electronic Theses and Dissertations

Macrophage colony stimulating factor receptor (CSF-1R or MCSFR) is a receptor tyrosine kinase essential for the growth and function of macrophages. Understanding the mechanisms that regulate CSF-1R activation and deactivation will provide insights to clinical treatment of macrophage related diseases including chronic inflammation and cancer. Previously, our laboratory showed that CSF-1R undergoes a novel membrane trafficking route that involves macropinocytosis to deactivate CSF-1R signaling. This thesis makes the discovery that the ubiquitin ligases Cbl and Cbl-b cooperate to regulate CSF-1R endocytosis and traffic to macropinosome in macrophages. Macrophages were derived from mice knocked out for Cbl, Cbl-b or the double …

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Reagents And Tools To Identify Epizootic Hemorrhagic Disease Virus-2, Meghan Syrstad Jan 2017

Reagents And Tools To Identify Epizootic Hemorrhagic Disease Virus-2, Meghan Syrstad

Electronic Theses and Dissertations

The purpose of this project was to define monoclonal antibodies against viral proteins from Epizootic Hemorrhagic Disease Virus (EHDV) to be used in quality control of vaccines produced by an industrial partner, and development of tools to identify EHDV. EHDV is an Orbivirus, which also includes Bluetongue Virus and African Horse Sickness, which are all transmitted through arthropod vectors. EHDV causes significant morbidity and mortality in white-tailed deer, but has recently been found to infect cattle. EHDV recently caused significant outbreaks affecting both the farmed and wild cervid industry, however few reagents and tools exist to protect against this disease …

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Assessment Of Nutritional Counseling Frequency On Weight Status In Renal Transplant Recipients, Kelly Butler Jan 2017

Assessment Of Nutritional Counseling Frequency On Weight Status In Renal Transplant Recipients, Kelly Butler

Electronic Theses and Dissertations

Objective: The goal of this study was to determine if there is an association between educational interventions by a RD and weight in the twelve months’ post-transplantation. A secondary aim is to study trends in blood lipid profiles in participants and the number of times visited with a RD.
Methods: A retrospective study of electronic medical records from consenting, de-identified RTR at a Midwest transplant center were collected. Specific biological and anthropometric measures were analyzed.
Results: Patients that met with the out-patient dietitian more frequently (4 to 9 times) experienced less weight gain than patients that only saw the …

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Improvement Of Milling And Nutritional Quality Characteristics Of Oats Through Genomic Selection, Sudha Neupane Adhikari Jan 2017

Improvement Of Milling And Nutritional Quality Characteristics Of Oats Through Genomic Selection, Sudha Neupane Adhikari

Electronic Theses and Dissertations

Oats can lower cholesterol, reduce risks of type-2 diabetes, and help prevent heart diseases when consumed daily. Therefore, it is important to evaluate and select breeding lines with desirable milling and nutritional quality traits. Genomic selection, which uses genotyping data to predict the breeding value of an individual, is a promising method to increase genetic gain by selecting for quality traits earlier in the line development process. In this study, we collected phenotypic data for three nutritional traits (protein, β- glucan, and fat content) and five milling quality traits (percent plumps, percent thins, percent plump groat, groat percent and thousand …

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Evaluation Of Woodchip Bioreactor Denitrification Kinetics, Abdoul Aziz Kouanda Jan 2017

Evaluation Of Woodchip Bioreactor Denitrification Kinetics, Abdoul Aziz Kouanda

Electronic Theses and Dissertations

Agricultural subsurface drainage is a water management practice used to remove excess water in poorly drained soil. The use of fertilizers combined with subsurface drainage practice affects negatively surface water quality due to nutrient loss. Woodchip bioreactors have previously been used as a technology for removing nitrate from agricultural subsurface drainage. Understanding the mechanism that governs nitrate removal in woodchip bioreactors is crucial for field bioreactor design and application. The objective of this project is to determine woodchip bioreactor denitrification kinetics parameters under different operating conditions including hydraulic retention time, temperature and influent nitrate concentrations. Laboratory column experiments were conducted …

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Soil Response To Cropping Sequences And Grazing Under Integrated Crop-Livestock System, Hanxiao Feng Jan 2017

Soil Response To Cropping Sequences And Grazing Under Integrated Crop-Livestock System, Hanxiao Feng

Electronic Theses and Dissertations

Integrated crop-livestock system (ICLS) is helpful in diversifying a farm for improving its long-term sustainability and economic benefits. In the United States, the ICLS has been increasing in recent years because of its economic and environmental benefits. However, the impacts of ICLS on soil quality is not well documented in North Dakota. The objective of our study is to assess the impacts of cropping sequences and cattle grazing on the selected soil properties in the crop diversity and livestock integration practice. This study site was established in 2010 at the Dickinson Research Extension Center, Dickinson, North Dakota. The study design …

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Mechanical Property Characterization Of Discontinuous Fiber Reinforced Composites By Computer Modeling, Amrit Bhusal Jan 2017

Mechanical Property Characterization Of Discontinuous Fiber Reinforced Composites By Computer Modeling, Amrit Bhusal

Electronic Theses and Dissertations

The desire to make high strength, lightweight, less corrosive, high fatigue resistance materials in auto industries, aero industries, biomedical industries have given a chance for in-depth study of composite materials. To get the profound knowledge of composites, different experiments are conducted which often take huge resources, cost and time. Computer modeling and analysis have gained popularity in Finite Element Analysis (FEA) because it can be used to predict the mechanical property of different materials. In this thesis, FEA technique has been used to predict mechanical property of discontinuous fiber reinforced composites (FRC). If we are able to foretell the mechanical …

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Analysis Of Novel Cyanide Antidote Dimethyl Trisulfide For Pharmacokinetic Studies, And Sulfur Mustard Metabolites For Identification Of Biomarker Of Inhaled Dose, Erica Manandhar Jan 2017

Analysis Of Novel Cyanide Antidote Dimethyl Trisulfide For Pharmacokinetic Studies, And Sulfur Mustard Metabolites For Identification Of Biomarker Of Inhaled Dose, Erica Manandhar

Electronic Theses and Dissertations

Cyanide poisoning by accidental or intentional exposure poses a severe health risk. The current FDA approved antidotes for cyanide poisoning can be effective, but each suffers from specific major limitations. Dimethyl trisulfide (DMTS), a sulfur donor that detoxifies cyanide by converting it into thiocyanate, is a promising next generation cyanide antidote. Although a validated analytical method to analyze DMTS is not currently available from any matrix, one will be vital for the approval of DMTS as a therapeutic agent against cyanide poisoning. Hence, a stir bar sorptive extraction (SBSE) gas chromatography – mass spectrometry (GC-MS) method was developed and validated …

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Effects Of Specific Home Environment Factors On A Child's Weight, Molly Millage Jan 2017

Effects Of Specific Home Environment Factors On A Child's Weight, Molly Millage

Electronic Theses and Dissertations

Background: In 2011-2014 8.9% of children 2-5 years old were classified as obese. Obesity in children predisposes them to negative health and psychological consequences. One of the most significant factors that influences a child is the physical environment the child is exposed to, which includes the home environment.
Objective: The purpose of this study was to examine how the home environment ie. cooking equipment, food preparation/availability, and frequency of family meals eaten at home, contribute to childhood obesity in children 3-5 years old.
Design: This study was a cross-sectional analysis of the iGrow Readers study.
Participants/setting: Total of 229 parent/child …

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Evaluation Of Woodchip Bioreactors And Phosphorus Adsorption Media For Nutrient Removal From Subsurface Drainage Water, Utsav Thapa Jan 2017

Evaluation Of Woodchip Bioreactors And Phosphorus Adsorption Media For Nutrient Removal From Subsurface Drainage Water, Utsav Thapa

Electronic Theses and Dissertations

Increased subsurface drainage over the past few decades in eastern South Dakota contributed to agricultural water quality problems. Nutrient losses, primarily nitrate-N and dissolved P, from subsurface drainage, have been identified as major contributors to eutrophication in the Great Lakes and Gulf of Mexico. Denitrifying bioreactors and P adsorption structures are edge-of field practices that can be used to protect water quality in waters downstream of subsurface drainage systems. The objectives of this study were to evaluate the effectiveness of woodchip bioreactors and a P adsorption structure in removing nitrate-N and dissolved P from subsurface drainage water. Four woodchip bioreactors …

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Molecular Characterization Of Spot Blotch And Bacterial Leaf Streak Resistance In Bread Wheat, Girma Ayana Jan 2017

Molecular Characterization Of Spot Blotch And Bacterial Leaf Streak Resistance In Bread Wheat, Girma Ayana

Electronic Theses and Dissertations

Spot blotch (SB), caused by Bipolaris sorokiniana (Sacc.) Shoem, and bacterial leaf streak (BLS), caused by Xanthomonas translucens pv. undulosa (Smith et al.), two important foliar diseases of wheat in the major production regions of the US and the world. Deployment of adequate host resistance against them depends on determining the resistance genes or quantitative trait loci (QTLs) responsible for the trait and identification of genetic markers linked to QTL that facilitate markers assisted breeding. We conducted two independent studies and characterized QTLs for BLS and SB resistance. In the first study, we constructed a genetic linkage map of 1,211 …

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The Transformation Of An Agriculture-Based Economy To A Tourism-Based Economy: Citizens' Perceived Impacts Of Sustainable Tourism Development, Debra P. Laville-Wilson Jan 2017

The Transformation Of An Agriculture-Based Economy To A Tourism-Based Economy: Citizens' Perceived Impacts Of Sustainable Tourism Development, Debra P. Laville-Wilson

Electronic Theses and Dissertations

Many researchers have explored the perceptions and impacts of tourism development. However, no studies have included the Caribbean islands of St. Kitts and Nevis where tourism has replaced agriculture as the primary driver of the islands’ economies. Furthermore, recent studies have not explored demographic factors that determine people’s perceptions of the impacts of tourism development in these islands. The purpose of this study was to investigate if citizens’ perceptions of the economic, socio-cultural, environmental and community impacts of tourism development vary by demographic factors such as age, education, gender and geographical location in relation to tourist areas. Nineteen research hypotheses …

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Gesi Mainstreaming In Nepal: Representation Of A New Concept Or Re-Presentation Of An Old Concept In A New Package?, Umit Shrestha Jan 2017

Gesi Mainstreaming In Nepal: Representation Of A New Concept Or Re-Presentation Of An Old Concept In A New Package?, Umit Shrestha

Electronic Theses and Dissertations

This study is a process analysis of a newly implemented Gender Equality and Social Inclusion (GESI) mainstreaming process within Ministry of Urban Development in Nepal. The study aims to understand GESI mainstreaming process within theoretical underpinnings of gender mainstreaming and framing. In understanding, the implementation of the GESI mainstreaming process the research also aims to understand the location of the process within different approach towards gender and development. The study analyzes how does GESI Mainstreaming process differs from previous approach in gender and development by understanding whether it creates a new standard for men, women and other vulnerable groups of …

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Effects Of Root Isoflavonoids And Hairy Root Transformation On The Soybean Rhizosphere Bacterial Community Structure, Laura White Jan 2017

Effects Of Root Isoflavonoids And Hairy Root Transformation On The Soybean Rhizosphere Bacterial Community Structure, Laura White

Electronic Theses and Dissertations

Rhizodeposits play a key role in shaping rhizosphere microbial communities. In soybean, isoflavonoids are a key rhizodeposit component that aid in plant defense and enable symbiotic associations with rhizobia. However, it is uncertain if and how they influence rhizosphere microbial communities. Isoflavonoid biosynthesis was silenced via RNA interference of isoflavone synthase in soybean hairy root composite plants. Successive sonication was implemented to isolate soil fractions from 3 different rhizosphere zones at 1 and 3 weeks post planting. PCR amplicons from 16S rRNA gene variable regions V1- V3 and V3-V5 from these soil fractions were analyzed via denaturing gradient gel electrophoresis …

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Optimized Multilayer Perceptron With Dynamic Learning Rate To Classify Breast Microwave Tomography Image, Chulwoo Pack Jan 2017

Optimized Multilayer Perceptron With Dynamic Learning Rate To Classify Breast Microwave Tomography Image, Chulwoo Pack

Electronic Theses and Dissertations

Most recently developed Computer Aided Diagnosis (CAD) systems and their related research is based on medical images that are usually obtained through conventional imaging techniques such as Magnetic Resonance Imaging (MRI), x-ray mammography, and ultrasound. With the development of a new imaging technology called Microwave Tomography Imaging (MTI), it has become inevitable to develop a CAD system that can show promising performance using new format of data. The platform can have a flexibility on its input by adopting Artificial Neural Network (ANN) as a classifier. Among the various phases of CAD system, we have focused on optimizing the classification phase …

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Common Trend In Wic And Non Wic Breastfeeding Rate: A Cointegration Approach Of Panel And Time Series Data, Nazia Azim Jan 2017

Common Trend In Wic And Non Wic Breastfeeding Rate: A Cointegration Approach Of Panel And Time Series Data, Nazia Azim

Electronic Theses and Dissertations

This thesis explores the trend of WIC (Women Infants and Children) and non WIC breastfeeding rates in U.S.A. WIC is a special supplemental nutrition program by USDA (United States Department of Agriculture). Time and panel data series have been used for 50 states of U.S.A and D.C (District of Columbia) to analyze the common trend between the two breastfeeding rates (time series data for 35 years and panel data series for 28 years). To determine the common trend, I used residual based cointegration for time series and recently developed error correction based cointegration for panel data series. I also constructed …

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Local And Systemic Actions Of Gnrh Relating To Estradiol And Associated Reproductive Parameters In Beef Cattle, Jerica J.J. Rich Jan 2017

Local And Systemic Actions Of Gnrh Relating To Estradiol And Associated Reproductive Parameters In Beef Cattle, Jerica J.J. Rich

Electronic Theses and Dissertations

In cattle, estradiol is responsible for modulating many mechanisms involved in successful reproduction. Specifically estradiol is the primary signal for the initiation of standing estrus (Allrich, 1994), and cattle expressing estrus prior to fixed time AI (FTAI) have been reported to have increased preovulatory estradiol concentrations (Perry and Perry, 2008) and increased pregnancy success compared to animals that did not exhibit estrus (Richardson et al., 2016). Gonadotropin releasing hormone, classically, stimulates estradiol production via the two-cell two-gonadotropin hypothesis (Fortune and Quirk, 1988), and GnRH administered systemically in small doses (5 μg) has been reported to elicit an LH pulse similar …

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U-Statistics For Characterizing Forensic Sufficiency Studies, Cami Fuglsby Jan 2017

U-Statistics For Characterizing Forensic Sufficiency Studies, Cami Fuglsby

Electronic Theses and Dissertations

One of the main metrics for deciding if a given forensic modality is useful across a broad spectrum of cases, within a given population, is the Random Match Probability (RMP), or the corresponding discriminating power. Traditionally, the RMP of a given modality is studied by comparing full `templates' and estimating the rate at which pairs of templates 'match' in a given population. This strategy leads to a natural U-statistic of degree two. However, in questioned document examination, the RMP is studied as a function of the amount of handwriting contained in the two documents being compared; turning the U-statistic into …

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Differential Gene Expression In Two Nodule Zones Of Soybean, Sunita Pathak Jan 2017

Differential Gene Expression In Two Nodule Zones Of Soybean, Sunita Pathak

Electronic Theses and Dissertations

Soybean, a leguminous plant and rhizobia establishes symbiotic relationships, forming root nodules. Nodule organogenesis starts with cortical cell division forming infection and parenchyma zones which houses N-fixing bacteria and block O2 for nitrogenase enzyme function, respectively. The mechanism by which root cortical cells give rise to two structurally and functionally different nodule tissues is not known. One approach to address this knowledge gap is to evaluate global gene expression patterns in these two tissue types during nodule development. Using INTACT method, we developed two promoters, ENOD2 (nodule parenchyma) and ENOD40 (infection zone) driven nuclear envelope biotin tagging constructs and isolated …

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A Kernel Based Approach To Determine Atypicality, Austin O'Brien Jan 2017

A Kernel Based Approach To Determine Atypicality, Austin O'Brien

Electronic Theses and Dissertations

This dissertation outlines the development and use for a new probabilistic measure for categorization, referred to as atypicality. Given a set of known source objects, we can create a corresponding set of similarity scores between them. Assuming the set of scores has a normal distribution, we can estimate its parameters. Then, we can introduce new trace objects to the problem, and compute similarity scores for them. The main goal of the atypicality score is to determine if the new trace objects are similar to the source objects. To do this, we bootstrap many new scores using the estimated parameters (from …

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