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2020

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Affinity Propagation Based Improved Group Search Optimizer Clustering Algorithm, Zhang Kang, Xingsheng Gu Aug 2020

Affinity Propagation Based Improved Group Search Optimizer Clustering Algorithm, Zhang Kang, Xingsheng Gu

Journal of System Simulation

Abstract: The essence of clustering is an optimization problem. It can be solved by swarm intelligent algorithms which are the popular research area in recent years. A novel Group Search Optimizer (GSO) algorithm named Fast Global Group Search Optimizer (FGGSO) was proposed. FGGSO improved the individuals' updating strategies of GSO, adopting the campaign strategy, destruction-construction strategy and accelerating-jumping strategy. By this means, the proposed algorithm improved the global and local search capability of the original GSO. Furthermore, based on this FGGSO algorithm, a novel improved AP algorithm was proposed. On account of deficiency of AP clustering unable to deal with …

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Gpu-Based Fluid Collision Detection Method With Surface Of Three-Dimensional Scenes, Liangping Liu, Liu Zhen, Fang Hao, Cuijuan Liu, Tingting Liu Aug 2020

Gpu-Based Fluid Collision Detection Method With Surface Of Three-Dimensional Scenes, Liangping Liu, Liu Zhen, Fang Hao, Cuijuan Liu, Tingting Liu

Journal of System Simulation

Abstract: Virtual simulation of fluid phenomena is of great value, and SPH fluid simulation-based method can truly reflect the motion of the fluid. However, as the size of the fluid increasing, the computation becomes large, especially fluid collision detection in complex scenes significantly reduces the efficiency of fluid simulation. By using GPU to accelerate SPH physical calculation and collision detection, and use of new neighbors particles chain table building method for particles searching, can improve fluid simulation efficiency. By using voxel scene rasterization of sampling methods, the calculation of collision detection was speeded up, and the storage space was saved …

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Improved Pivoting Ball Algorithm For Nonuniform Point Cloud Data, Silan Hu, Mingquan Zhou, Wuyang Shui, Zhongke Wu Aug 2020

Improved Pivoting Ball Algorithm For Nonuniform Point Cloud Data, Silan Hu, Mingquan Zhou, Wuyang Shui, Zhongke Wu

Journal of System Simulation

Abstract: Ball Pivoting algorithm is mainly used for surface reconstruction of point cloud data, the algorithm starts from a seed triangle, the ball along the seed triangle a side of rotation until the ball is exposed to a point and the edge and the composition of a triangle. The main disadvantage of this algorithm is that when the point cloud data is not uniform when the ball in the rolling process does not contact the point, and therefore will have a hole. A non-uniform point cloud data for improved reconstruction of the Ball Pivoting algorithm of the original point cloud …

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Three-Dimensional Virtual Simulation Of Overflow Dam, Guisheng Fang, Hongfa Wang Aug 2020

Three-Dimensional Virtual Simulation Of Overflow Dam, Guisheng Fang, Hongfa Wang

Journal of System Simulation

Abstract: Overflow dam is one of hydraulic structures widely used in the water conservancy projects. The surface structure of overflow dam and the open mode of sluice gate have huge influence to the flood flow. The Navier-Stokes equation was used as the turbulence control equation. The Smoothed Particle Hydrodynamics method was used to simulate the 3D flood flow. The shape of water flow and the distribution of pressure and the distribution of flow velocity were respectively analyzed in the case of different gate opening state. The experimental results show that the virtual simulation of overflow dam is the same as …

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The Effects Of Alcohol On Bdnf And Cd5 Dependent Pathways, Andrew Jordan Payne Aug 2020

The Effects Of Alcohol On Bdnf And Cd5 Dependent Pathways, Andrew Jordan Payne

Theses and Dissertations

Alcohol represents the third leading cause of preventable death in the United States. Yet, despite its prevalent role in impeding human health, there is much to understand about how it elicits its effects on the body and how the body and brain change when an individual becomes physiologically dependent upon alcohol. The work presented herein represents an effort to elucidate the acute and chronic effects of alcohol on the nervous system. We investigate two specific protein pathways and their role in alcohol's effects on the body. The first begins with brain-derived neurotrophic factor (BDNF), which acts on TrkB, and ends …

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Assessing Seasonal Changes In Body Condition For Spotted (Phoca Largha), Ringed (Pusa Hispida), And Bearded (Erignathus Barbatus) Seals, Michelle Hartwick Aug 2020

Assessing Seasonal Changes In Body Condition For Spotted (Phoca Largha), Ringed (Pusa Hispida), And Bearded (Erignathus Barbatus) Seals, Michelle Hartwick

Master's Theses

Anthropogenic global warming is causing unprecedented changes to occur within Arctic ecosystems. As sea ice continues to decline in both thickness and extent, ice-adapted species will be particularly affected. Specifically, Arctic seals are reliant on sea ice during critical life-history stages and many of their preferred prey depend on reliable patterns in annual sea ice cover. Thus, ongoing changes will likely affect the ability of Arctic seals to carry out key life-history tasks and maintain positive energy balance. One way to assess energy reserves is through examination of body condition. For seals, this is often done by measuring overall blubber …

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The Molecular And Cellular Dynamics Of Holstein Bull Spermatozoa Associated With Cryotolerance, Alicia Gilmore Aug 2020

The Molecular And Cellular Dynamics Of Holstein Bull Spermatozoa Associated With Cryotolerance, Alicia Gilmore

Theses and Dissertations

The objective of this study was to uncover molecular and cellular dynamics in spermatozoa from Holstein bulls with Good (11 bulls) and Poor (5 bulls) cryotolerance. Post-thaw sperm kinetics, membrane integrity, and DNA fragmentation were assessed. Data was analyzed using principal component analysis. The spermatozoa from Good bulls had a higher number of cells with intact membranes (P = 0.029), nonragmented DNA (P = 0.018), post-thaw viability (P < 0.001) in comparison to those of the Poor bulls. The Good bulls also had a faster average path velocity (VAP; P = 0.017), straight-line velocity (VSL; P = 0.036), a greater distance average path (DAP; P = 0.006) and distance straight line (DSL; P = 0.011). No differences were found in total antioxidant capacity (TAC), number of live cells or other kinetic parameters between spermatozoa from Good and Poor groups, showing that no one characteristic can be used to determine cryotolerance.

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The Prevalence And Mode Of Persistence Of Salmonella On Commercial Poultry Processing Equipment After Sanitization Procedures, Tomilola Olofunke Obe Aug 2020

The Prevalence And Mode Of Persistence Of Salmonella On Commercial Poultry Processing Equipment After Sanitization Procedures, Tomilola Olofunke Obe

Theses and Dissertations

The prevalence and mode of persistence of Salmonella on commercial poultry processing equipment was examined in this study. The equipment surfaces of six commercial processing plants were sampled over three-time periods designated as A (after processing), B (after cleaning), and C (after sanitization) and each plant was visited three times. Salmonella prevalence was greater (p<0.0001) at time A than times B and C, while there were no differences (p=0.386) between times B and C. A total of twentyive Salmonella isolates from five distinct serovars were recovered from the processing plants. Further examination of the recovered isolates showed that tolerance to sanitizing agents (chlorine and quaternary ammonium compounds, QAC) and/or biofilm formation was the possible mode of persistence. In addition, all the isolates were resistant to multiple antibiotics in different classes of drugs and more than two genes that are responsible for ⅰ). biofilm formation, ⅱ). resistance to QAC, ⅲ). oxidative stress response, and ⅳ). resistance to antibiotics were detected. Three selected isolates were further characterized based on virulence factors and antimicrobial resistance using whole genome sequencing (WGS) to possibly predict phenotypic characteristics. The WGS data correlates with phenotypic characteristics that were previously observed in the isolates including the ability to produce biofilms and resistance to antibiotics including β-lactams, aminoglycosides, and cephalosporins. WGS predicted the isolates carried resistance genes for antibiotic drug classes that were not observed phenotypically. These include macrolides and fluoroquinolone, which is a concern due to its use in treating foodborne infection. Furthermore, the genome of the three selected isolates were predicted to have over sixty virulence genes that allow Salmonella to invade, attach, and colonize the host cells. The results from this study suggest that the antimicrobials used for sanitization may be insufficient to inactivate Salmonella because of the ability to produce biofilms on processing surfaces. Most importantly, the results suggest the ability of the isolates to cause infection in humans meaning if contamination were to occur, the right antibiotic treatment could be a challenge. Further research is imperative to determine the effective antimicrobial for Salmonella biofilms.

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Easily Overlooked: Modelling Coastal Dune Habitat Occupancy Of Threatened And Endangered Beach Mice (Peromyscus Polionotus Spp.) Using High-Resolution Aerial Imagery And Elevation Models Of The Northern Gulf Of Mexico, Wesley Burger Aug 2020

Easily Overlooked: Modelling Coastal Dune Habitat Occupancy Of Threatened And Endangered Beach Mice (Peromyscus Polionotus Spp.) Using High-Resolution Aerial Imagery And Elevation Models Of The Northern Gulf Of Mexico, Wesley Burger

Theses and Dissertations

The Gulf of Mexico dune system is a broad and dynamic environment that varies greatly in geomorphology and vegetative composition across the Gulf coastline. Beach mice (Peromyscus polionotus spp.) are an endangered species that rely on coastal habitat structure. I hypothesized that beach mouse occupancy would be dependent upon coastal dune land cover and landform features. I identified coastal landforms using high-resolution elevation data and landform models in GRASS GIS and identified coastal dune vegetation classes using high-resolution aerial imagery and object oriented vegetation classification. These features were used to create a dynamic occupancy model to determine occupancy patterns in …

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A Survey Of Neonicotinoid Residue Levels In Native Bees And Soil Of The Mississippi Black Belt Prairie, Sena Isbilir Aug 2020

A Survey Of Neonicotinoid Residue Levels In Native Bees And Soil Of The Mississippi Black Belt Prairie, Sena Isbilir

Theses and Dissertations

Reports of declining insect populations suggest that more research focusing on this phenomenon is needed, especially in pollinator insects. Climate change, habitat destruction, and usage of certain pesticides have all been implicated in insect decline. Neonicotinoid pesticides are highly toxic to bees, can have drastic sub-lethal effects on behavior, and are persistent in the environment; likewise, they have been implicated as a major factor affecting bee populations. However, there are limited studies on native bees regarding their interactions with neonicotinoids, even regarding simple questions such as exposure levels. In this study, we aimed to assess concentrations of common neonicotinoids in …

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Biomolecular Analysis Of An Insect Of Economic Importance, The Multicolored Asian Lady Beetle, Selene Perales Sanchez Aug 2020

Biomolecular Analysis Of An Insect Of Economic Importance, The Multicolored Asian Lady Beetle, Selene Perales Sanchez

Theses and Dissertations

Insect-human interactions are very complex; one example is the relationship between humans and the multicolored Asian lady beetle (ALB; Harmonia axyridis). ALB, a native to Asia, was introduced into North American agricultural fields and orchards as a biological control agent for aphids and other soft-bodied insects. However, it is considered a pest by some humans as it invades houses in the fall and winter months. Additionally, ALBs feed on fruits when aphids are scarce, and the hemolymph secreted by ALBs contaminates fruit and affects the taste of fruit products. ALBs invasive behavior has led to concern that this non-native species …

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Taphonomy Of A Late Cretaceous Mosasaur Specimen From Oktibbeha County, Mississippi, Joseph Moffitt Aug 2020

Taphonomy Of A Late Cretaceous Mosasaur Specimen From Oktibbeha County, Mississippi, Joseph Moffitt

Theses and Dissertations

The taphonomy and paleoecology of a well-preserved mosasaur (DSM 10716) are reported from Oktibbeha County, Mississippi. The mosasaur was recovered from the Prairie Bluff Chalk, the exact stratigraphic position and age confirmed using established foraminiferal zonation for the Late Cretaceous of the U. S. Gulf Coastal Plain. A species identification of Mosasaurus cf. hoffmanni Mantell is given using shape and structure of the quadrate and jugal, as well as tooth counts for the dentary, maxilla, and pterygoid. DSM 10716 exhibits well-preserved trace fossils including feeding traces and the remains of encrusting bivalves. The associated fossils are probed for similar phenomena …

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Intraspecific Variability Of Edwardsiella Piscicida And Cross-Protective Efficacy Of A Live-Attenuated Edwardsiella Ictaluri Vaccine In Channel And Channel × Blue Hybrid Catfi, Adrian Lopez Porras Aug 2020

Intraspecific Variability Of Edwardsiella Piscicida And Cross-Protective Efficacy Of A Live-Attenuated Edwardsiella Ictaluri Vaccine In Channel And Channel × Blue Hybrid Catfi, Adrian Lopez Porras

Theses and Dissertations

Incidence and prevalence of Edwardsiella piscicida has increased in Mississippi farm-raised catfish in recent years. Edwardsiella piscicida affects mostly market-sized catfish during the final stages of the production cycle resulting in significant economic losses. The objectives of this study were to determine the genetic variability of E. piscicida, assess virulence in channel and hybrid catfish, and evaluate the capacity of a live-attenuated E. ictaluri vaccine to protect channel and hybrid catfish against heterologous E. piscicida isolates. This work identified five discrete E. piscicida lineages, along with group specific associations of several virulence related genes. In general, E. piscicida was shown …

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Mississippian Period (1000 – 1700 A.D.) Wattle And Daub Construction In The Yazoo Basin: Comparing Energy Expenditure Using Context And Construction Methods, William David Harris Aug 2020

Mississippian Period (1000 – 1700 A.D.) Wattle And Daub Construction In The Yazoo Basin: Comparing Energy Expenditure Using Context And Construction Methods, William David Harris

Theses and Dissertations

Native American societies in the Yazoo Basin during the Mississippian Period (ca. 1000 – 1700 A.D.) extensively built platform mounds often associated with “elite” or “sacred” areas, and exotic or energy expensive artifacts. Excessive energy expenditure, or “waste” behaviors, may be explained with costly signaling and bet-hedging, hypotheses stemming from evolutionary theory. I argue that costly signaling may best explain the waste evident in hierarchical and agricultural Mississippian Period societies of the Mississippi Valley. Consequently, I feel that differing levels of energy expenditure may be evident from the remains of perishable construction excavated from mound summits and off-mound contexts. During …

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Evolutionary Patterns Of Amoebozoa Revealed By Gene Content And Phylogenomics, Seungho Kang Aug 2020

Evolutionary Patterns Of Amoebozoa Revealed By Gene Content And Phylogenomics, Seungho Kang

Theses and Dissertations

Amoebozoa is the eukaryotic supergroup sister to Obazoa, the lineage that contains the animals (including us humans) and Fungi. Amoebozoa is extraordinarily diverse, encompassing important model organisms and significant pathogens. Although amoebozoans are integral to global nutrient cycles and present in nearly all environments, they remain vastly understudied. Here we have isolated a naked eukaryotic amoeba with filose subpseudopodia, and a simple life cycle consisting of a trophic amoeba and a cyst stage. Using a wholistic approach including light, electron, fluorescence microscopy and SSU rDNA, we find that this amoeboid organism fails to match any previously described eukaryote genus. Our …

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Hind Wing Eyespots Of Brassolini Butterflies (Lepidoptera, Nymphalidae): Evolutionary Diversification And Functions In Anti-Predator Defense And Mating Behavior, Logan Crees Aug 2020

Hind Wing Eyespots Of Brassolini Butterflies (Lepidoptera, Nymphalidae): Evolutionary Diversification And Functions In Anti-Predator Defense And Mating Behavior, Logan Crees

LSU New Orleans Theses and Dissertations

Ventral hind wing eyespots are prominent pattern elements in Brassolini butterflies, likely functioning in predator-prey interactions and reproductive activities. Caligo and Opsiphanes differ in male mate-seeking behaviors and it has been suggested that Caligo females use the male cua1 eyespot as a mate-locating cue, but Opsiphanes females do not seem to do so. We predict Caligo males should have larger eyespots than congeneric females, but the sexes would not differ in eyespot size in Opsiphanes. Our analyses supported both these predictions. Displacing the eyespot to the center of the wing makes eyespots more conspicuous, we asked if eyespot position …

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A Molecular And Bioinformatic Investigation Into The Phylogenetic Relationships And Life Cycles Of Amoeboid Protists, Alexander K. Tice Aug 2020

A Molecular And Bioinformatic Investigation Into The Phylogenetic Relationships And Life Cycles Of Amoeboid Protists, Alexander K. Tice

Theses and Dissertations

Eukaryotic organisms that cannot be classified as animals, land plants, or fungi are termed protists. Despite the fact that protists represent the majority of eukaryotic diversity, these organisms have received relatively little attention from biological researchers beyond morphological characterization. Reasons that likely contributed to their neglect include their mostly microscopic nature, that only a few lineages are the causative agents of human disease, that laboratory cultivation can be challenging, and that species concepts for the majority of protists was vague in many lineages. Initial attempts to resolve relationships among eukaryotes produced the five kingdoms model. This model suggested protists were …

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Adversity And Resilience Training: Trauma-Informed Care As A Universal Community Intervention, Lediya Dumessa Aug 2020

Adversity And Resilience Training: Trauma-Informed Care As A Universal Community Intervention, Lediya Dumessa

Theses and Dissertations

Growing evidence of the health risks associated with adverse childhood experiences (ACEs) has prompted public health and community initiatives to promote awareness, detection, and responses that are trauma informed. Nationwide programs to integrate trauma-informed care into education, health care, and child serving agencies, have thus far led to the proposal and advancement of trauma-informed policies and practices in many communities. While Mississippi agencies include trauma-specific intervention and training, statewide ACEs initiatives and relevant data are still limited. This project aimed to contribute to the larger goal of a statewide trauma-informed paradigm shift, by increasing ACEs awareness and developing recommendations for …

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Brain And Hepatic Microsomal Metabolism Of Phorate, Marissa Lucento Aug 2020

Brain And Hepatic Microsomal Metabolism Of Phorate, Marissa Lucento

Theses and Dissertations

Phorate (O,O-diethyl S-ethylthiomethyl phosphorodithioate) is a toxic organophosphate anticholinesterase insecticide. Organophosphate insecticides can cause respiratory depression and seizures due to acetylcholinesterase inhibition. Inhibited acetylcholinesterase cannot break down the neurotransmitter, acetylcholine; thus, causing an overload of acetylcholine in synapses and neuromuscular junctions. Oxidative desulfuration, from metabolism by cytochrome P450 enzymes, converts the P=S phosphorothionate group on phorate to the P=O oxon group. Electrophilic oxon groups attack the active site on acetylcholinesterase, inducing the toxicity associated with organophosphate insecticides. Possible further bioactivation to phorate-oxon-sulfoxide and phorate-oxon-sulfone near the site of acetylcholinesterase in the brain may increase acetylcholinesterase inhibitory potency. Adult male Sprague-Dawley …

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Characterization Of Integrin-Linked Kinase Functions In Cell Wall Immunity, Emily Cooley Aug 2020

Characterization Of Integrin-Linked Kinase Functions In Cell Wall Immunity, Emily Cooley

Theses and Dissertations

Plants have several defense systems used as protection from environmental stressors, and the plant cell wall (CW) is considered the “frontline” during attack. The CW is a complex structure essential for growth and development and is composed of components such as cellulose, polysaccharides, pectin, and lignin. Lignin is the central source of strength for the CW and helps form a water-impermeable barrier for defense. The extent of plant CW defense, immunity, and the components involved still need further investigation. Integrin-Linked Kinases (ILKs), a subfamily of Raf-like kinases (RAFs), are thought to participate in signal-processing pathways of the CW and plasma …

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Conservation And Coexistence Of A Federally Listed Species Within A Landscape Highly Modified For Commodity Production: Gopher Tortoise (Gopherus Polyphemus) And Intensive Pine (Pinus Spp.) Management, Duston R. Duffie Aug 2020

Conservation And Coexistence Of A Federally Listed Species Within A Landscape Highly Modified For Commodity Production: Gopher Tortoise (Gopherus Polyphemus) And Intensive Pine (Pinus Spp.) Management, Duston R. Duffie

Theses and Dissertations

Gopher tortoise (Gopherus polyphemus; hereinafter, tortoise) is listed as threatened under the Endangered Species Act in the western portion of its range. Across the species’ range, approximately 70 % of potential habitat is privately owned, and these properties are often managed primarily for timber production. However, tortoise ecology on private, working forest landscapes remains poorly understood. To provide a better understanding of tortoise response to active forest management, I evaluated population demographics, movement ecology, and habitat selection of two tortoise populations: former Ben’s Creek Wildlife Management Area (BC) in Washington Parish, Louisiana and Perry County Gopher Tortoise Management Unit (PCGTMU) …

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Consumer Purchasing Response To Mandatory Genetically Engineered Labeling, Elizabeth Macaulay Thomas Aug 2020

Consumer Purchasing Response To Mandatory Genetically Engineered Labeling, Elizabeth Macaulay Thomas

Theses and Dissertations

On January 1, 2022, mandatory genetically engineered (GE) food disclosure labeling will be required nationwide in the United States. To date, the only mandatory GE labeling law implemented in the U.S. was Act 120 in Vermont. This thesis examines the consumer purchasing response to the implementation of Vermont Act 120 using store-level scanner data of food purchases. I measure the effects of Vermont Act 120 on the grocery store sales of non-GMO, organic, and GE- labeled products in Vermont. Using a difference-in-difference approach, I can compare stores in Vermont to control states before and after the law was passed, implemented, …

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Early Administration Of Probiotics Through In Ovo Inoculation And Their Impact On Gut Microflora, Immune Response, And Growth Performance Of Broiler Chicks, Claudia Duneska Castañeda Bustillo Aug 2020

Early Administration Of Probiotics Through In Ovo Inoculation And Their Impact On Gut Microflora, Immune Response, And Growth Performance Of Broiler Chicks, Claudia Duneska Castañeda Bustillo

Theses and Dissertations

Controlling pathogenic presence in broilers has become a priority in the poultry industry to prevent economic losses due to disease and infection, as well as the possible contamination of chicken products. The use of antibiotics reduces the incidence of infections; however, their removal from production initiated the search for suitable alternatives. Probiotic ineed supplements have been widely evaluated as alternatives. Probiotic use has improved broiler performance, reduced pathogenic loads, and stimulated the immune system at later life stages. However, there is still a gap in protection during the first weeks after the chick hatches. The in ovo supplementation of probiotics …

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Effects Of Fire Phenology And Stump Sprouting On Summer Nutritional Carrying Capacity For White-Tailed Deer, Rainer Nichols Aug 2020

Effects Of Fire Phenology And Stump Sprouting On Summer Nutritional Carrying Capacity For White-Tailed Deer, Rainer Nichols

Theses and Dissertations

Prescribed fire is commonly used to manage white-tailed deer habitat. However, nutrition is still limited during the summer for deer in the Southeast and prescribed fire is commonly restricted to the dormant season. Knowledge of fire phenology effects on summer nutrient availability is relatively unknown. Stump sprouts may also affect available nutrition, which could be important when managing for summer nutrition. To address this summer nutritional stress period, I examined impacts prescribed fire phenology and mechanical stump sprouting had on summer nutritional carrying capacity for deer. Results indicated implementing prescribed fire in both dormant and growing-seasons led to increased summer …

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Assisted Reproductive Technologies In Male Ambystoma Tigrinum With Application To Threatened Newt Species, Amanda Gillis Aug 2020

Assisted Reproductive Technologies In Male Ambystoma Tigrinum With Application To Threatened Newt Species, Amanda Gillis

Theses and Dissertations

The world is currently facing an amphibian extinction crisis and wild salamanders and newts (Order: Caudata) are the most disadvantaged with 52% of species threatened. Captive breeding programs are been established to act as assurance colonies, but they are overwhelmingly failing due to the lack of environmental cues to stimulate reproduction and other factors. Therefore, assisted reproductive technologies (ART) are being developed to overcome these barriers. This project expands upon the limited existing information on caudate ART through studies in the model species, Ambystoma tigrinum, for application to threatened species. Specific objectives included the characterization of motility longevity in artificially …

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Biomechanical Comparison Of External Fixation And Double Plating For The Stabilization Of A Canine Cadaveric Supracondylar Humeral Fracture Gap Model, Sarah Castaldo Aug 2020

Biomechanical Comparison Of External Fixation And Double Plating For The Stabilization Of A Canine Cadaveric Supracondylar Humeral Fracture Gap Model, Sarah Castaldo

Theses and Dissertations

A 2 cm ostectomy was performed on 10 pairs of canine cadaveric humeri proximal to the supratrochlear foramen. Stabilization was with a double plate construct (DB-PLATE) (n=10) or external skeletal fixator with intramedullary pin tie-in configuration (ESF-IMP) (n=10). Cyclic testing was performed. Axial compressive load to failure testing followed. Data analyzed included dynamic stiffness, stiffness and yield load. No constructs failed during cyclic testing or lost stiffness over time, although mean dynamic stiffness was greater for DB-PLATE compared to ESF-IMP. Mean stiffness of DB-PLATE in load-toailure testing was not significantly different than ESF-IMP. Yield force of DB-PLATE was significantly higher …

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Comparing Development Definitions Of Internally Displaced Communities And The Government: A Study Of The Chenchu People In The Nallamala Forest Of Southern India, Malavika Jinka Ramamurthy Aug 2020

Comparing Development Definitions Of Internally Displaced Communities And The Government: A Study Of The Chenchu People In The Nallamala Forest Of Southern India, Malavika Jinka Ramamurthy

Theses and Dissertations

The Indian government’s twin objectives of protecting the tiger population in the Nallamala forest in Andhra Pradesh and providing “development” to the indigenous Chenchu people have resulted in an on-going process of Chenchu displacement from the forest. The research is an anthropological intervention to comparatively analyze the development definitions of the Chenchu people (N=15), subgrouped location-wise as Deep Forest Chenchu, Intermediate Forest Chenchu, and Displaced Chenchu, and the Government and NGO representatives (N=13), including Integrated Tribal Development Agency representatives, NGO workers, and conservation authorities. Both groups defined development as access to basic amenities, education and jobs, health, freedom, livestock, and …

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Effects Of Cover Crop Management On Biologically Related Soil Properties In A Mississippi Dryland Soybean System, Sapana Pokhrel Aug 2020

Effects Of Cover Crop Management On Biologically Related Soil Properties In A Mississippi Dryland Soybean System, Sapana Pokhrel

Theses and Dissertations

Soil microorganisms are important for the stabilization and preservation of a good soil structure. Management practices can affect the diversity and population of microorganisms, which could beneficially change soil properties and promote a more sustainable dryland system. This study was established near Pontotoc, MS on Atwood silt loam to evaluate the impacts of cover crops and fertilizer sources on selected biologically related soil properties in a no-tillage, dryland soybean system. Soil analyses included total carbon and nitrogen, permanganate oxidizable carbon (POXC), easily extractable glomalin-related soil protein (EE-GRSP), water stable aggregate (WSA) and soil pH. Cover crop biomass and percent groundcover, …

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Effects Of Fire On Acorn Removal And Deer Mediated Community Level Indirect Effects Of Mast Seeding, Charles Moriah Boggess Aug 2020

Effects Of Fire On Acorn Removal And Deer Mediated Community Level Indirect Effects Of Mast Seeding, Charles Moriah Boggess

Theses and Dissertations

Declining oak (Quercus spp.) dominance across the eastern U.S. is often attributed to fire exclusion and abundant white-tailed deer (Odocoileus virginianus). Fire restoration can negatively affect acorn germination and survival directly but also indirectly through impacts on seed predation. Similarly, masting events could influence oak regeneration success by altering deer behavior. To date, virtually no information exists assessing indirect effects of acorn consumers on oak regeneration. I developed two experiments to address this knowledge gap. In the first experiment, I determined if burning acorns affects predator removal rates. In the second experiment, I assessed the indirect effects of mast seeding …

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Using Animated Videos And Prompt Delay Procedures To Train Children With Autism To Label Situation-Based Emotions, Margaret Powell Aug 2020

Using Animated Videos And Prompt Delay Procedures To Train Children With Autism To Label Situation-Based Emotions, Margaret Powell

Theses and Dissertations

Research has indicated that individuals with ASD have deficits in the ability to correctly identify and interpret the emotions and feelings of others. The ability to recognize the emotions of others has shown to be extremely beneficial in a number of ways. On the other hand, the inability to recognize the emotions of others has been linked to a number of negative outcomes, including inappropriate behaviors, as well as mental health, personal, social, and academic difficulties. The purpose of the current study was to extend the previous literature on effective strategies for teaching individuals with ASD to correctly label the …

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