Digital Commons Network^™

Research On Extraction Method Of Time-Frequency Feature Of Fall Detection, Tianrun Wang, Su Zhong, Liu Ning, Li Chao, Guodong Fu

Journal of System Simulation

Abstract: Aiming at the problem of features extract method for fall detection, the method using time-frequency analyze and features extraction by Fractional Fourier Transform (FRFT) has been proposed. The inertial data is measured by 15 IMU wearing on body, the features extracted after FRFT with multiple order are analyzed and compared. The difference of feature distribution of eight fall actions has been compared, and the difference of feature distribution between fall action and 4 normal actions has been compared. The feasibility of using FRFT in fall detection is proved.

The Rockaway Project - Townes, Diara Jepris D. Townes

Capstones

The Rockaway Project is a story-driven website that provides information on the government response to Superstorm Sandy recovery on the Rockaway peninsula in Queens, New York. Dozens of climate resiliency projects have been delayed or remain unfinished, despite millions of dollars in funding and six years of promises. The website hosts audio, visual and digital content, gathered through interviews and data collection.

Link to capstone project: https://www.youtube.com/watch?v=fAq2BeR4bS0&t=1s

Investigating The Relationship Between Hormone Receptors Dax-1 And Estrogen Receptor Within Prostate Cancer Cell Lines, Meghana G. Vijayraghavan

Master's Theses

Prostate cancer (PCa) is estimated to be the second leading cause of cancer-related deaths among men in the United States in 2019. While most prostate tumors rely on androgens for growth signaling, there are subsets of tumors that become androgen-resistant, therefore resisting conventional androgen-depravation therapy. Consequently, research has focused on targeting different hormone receptors for novel therapeutics. One such receptor is Dosage-sensitive sex reversal, adrenal hypoplasia critical region, on chromosome X, gene 1 (DAX-1). DAX-1 is known to interact with other hormone receptors, such as androgen receptor (AR) and estrogen receptors (ERs) to suppress the proliferative effects …

Evaluating The Applicability Of Deep Learning Techniques In Agricultural Systems Modeling, Babak Saravi

Theses and Dissertations

A rapidly expanding world population and extreme climate change have made food production a crucial challenge in the twentyirst century. Therefore, improving crop production through agricultural management could be an effective solution for this challenge. However, due to the associated cost and time to perform field works, researchers widely rely on agricultural system modeling to examine the impacts of different crop management scenarios. However, due to the complexity of agricultural system modeling, their applications in producing practical knowledge for producers are limited. Concurrently, deep learning techniques have been recognized as a preferred method when dealing with large datasets. This study …

Evaluation And Development Of Effective Tank Cleanout Procedures Following Dicamba Use, Zachary Carpenter

Theses and Dissertations

Sprayer hygiene and concerns of off-target injury from auxin herbicides have increased in recent years. New auxin tolerant crops have broadened the use patterns of these herbicides. Therefore, experiments were conducted across two locations in Mississippi in 2016, 2017, and 2018 to evaluate sprayer cleanout procedures to aid in dicamba removal. Standard sprayer cleanout consisted of a triple rinse of 10% tank volume, with either a tank cleaner or ammonia added in the second rinse. Samples collected in each rinse step for all treatments were applied to actively growing soybean and dicamba concentration quantified with HPLC. Experiments were conducted to …

Evaluation Of Health, Production Parameters, Time To First Detected Estrus, And Behavior In Dairy Cows Treated With Pegbovigrastim, Mauricio Xavier Da Silva Oliveira

Theses and Dissertations

Pegbovigrastim injection (IMR) represents a new approach in overcoming mastitis. The objective of this study was to evaluate production parameters, overall health, time to first detected heat, and behavior of cows treated with IMR or a saline control. Study cows (n = 270) were blocked by parity group (multiparous or primiparous) and randomly assigned to control (CON, n = 144) or treatment (IMR, n = 126). Milk yield, fat, protein, lactose, solids nonfat percent, somatic cell count, and body condition, hygiene, and lameness were evaluated weekly. Animals were evaluated for metritis twice weekly via evaluation of rectal temperature, per rectum …

Evaluation Of Preemergence And Postemergence Herbicide Programs On Weed Control And Weed Seed Suppression In Mississippi Peanut (Arachis Hypogea), John Wesley Seale

Theses and Dissertations

Weed control is challenging for Mississippi peanut producers. Research was established during 2017 and 2018 at the Delta Research and Extension Center in Stoneville, Mississippi, to evaluate herbicide programs for weed control and reducing weed seed production in Mississippi peanut production. Treatments were combinations of acetochlor, clethodim, flumioxazin, lactofen, paraquat, and S-metolachlor with their respective adjuvants if needed. Treatments were applied: PRE, early-POST (EPOST), and/or mid-post (MPOST). All treatments included a PRE application followed by (fb) application of EPOST and/or MPOST application. Flumioxazin PRE fb lactofen plus clethodim MPOST provided greatest weed control and peanut yield. This treatment provided 88 …

Problem Solving And Suicide: A First Look, Caitlin E. Titus

Theses and Dissertations

Suicide is the 10th leading cause of death in the United States, with rates increasing over the past several decades. This study examined whether problem-solving performance differs in those with no suicide ideation or attempts compared to those with only suicide ideation and with those with a history of attempts. Results demonstrated that when accounting for depression, problem-solving accuracy was positively predictive for the suicidal ideation group. Furthermore, the suicidal ideation group solved more problems on average than both those with no history of suicidal thoughts and behaviors and the suicide attempt group. The current study was somewhat underpowered and …

Spatial Responses Of Adult Male White-Tailed (Odocoileus Virginianus) Deer To Hunting Risk, Ashley Chance

Theses and Dissertations

Movement responses of male white-tailed deer (Odocoileus virginianus) to hunting pressure vary across study systems and risk levels and may be confounded by breeding season. At the average levels of risk present on my study area (0.04 hunters/hectare/day) deer almost never altered behavior in response to hunter proximity. Home range characteristics did not predict risk exposure or risk management. Behavioral responses to levels of risk present in my study appear to be minimal, however bucks altered home range size and movements as the breeding season progressed. Most unconstrained movements occurred in early rut, with a 50% reduction during late and …

Impact Of Refrigerated Storage On The Dissipation Of Woody Broiler Breast Meat, Michael Byron

Theses and Dissertations

Chicken breast samples, (n=90; n=30 normal, n=30 moderate woody breast (WB), n=30 severe WB) were collected from a commercial processing plant on 5 separate occasions. After 5 days of storage at 2-4 ºC, 84% of severe WB fillets dissipated to moderate WB, which was greater (P<0.05) than all other storage times. In comparison, 40-52% of the moderate WB fillets dissipated to slight WB or normal breasts after 3 to 5 days of storage. Shear force was greater (P<0.05) for normal breast meat than moderate and severe WB meat on day 0. After 2, 3, 4, and 5 days of storage the upper position (cranial part) of severe WB had greater shear force than normal fillets (P<0.05). Therefore, the dissipation that occurred in woody breast meat over refrigerated storage was apparent through palpation but did not result in improved texture in the cranial portion of the breast, based on shear force results.

In Ovo Injection Of Probiotic Combinations And Their Impact On Broiler Chick Performance, Immune Response, And Gastrointestinal Development, Chrysta Beck

Theses and Dissertations

As the international poultry industry searches for antibiotic alternatives, dietary probiotic supplementation has exhibited the ability to decrease FCR, increase live weight gain, and regulate inflammatory responses within the gut of broiler chickens. The in ovo (or in egg) supplementation of probiotics has the potential for promoting early colonization of probiotic bacteria in the gastrointestinal tract and providing enhanced protection against pathogens in the hatchery and grow-out facilities. In the present studies, the in ovo injection of either L. animalis + E. faecium combination or L. animalis + B. licheniformis combination on d 18 of incubation does not negatively affect …

Faunal Assemblages Associated With Living Shorelines And Implications For High-Wave Energy Ecosystems, Daniel Firth

Theses and Dissertations

This study investigated the main and interactive effects of nearshore breakwaters and marsh vegetation on faunal abundance and diversity along an eroded shoreline in Bon Secour Bay, Alabama. In summer 2016, eight replicates of three vegetation treatments plots (naturally vegetated, planted, and open) were established along a breakwater-protected and an adjacent no breakwater shoreline. After which, three methods were used to evaluate nekton quarterly from summer 2016 to summer 2018; Breder traps along the shoreline and lift nets and trawls in nearshore waters. Data were analyzed using the Shannon-Weiner diversity index and ANOVA. Results showed breakwaters supported significantly more abundant …

Fraze Mowing For Overseeding Establishment And Removal Of Perennial Ryegrass, Matthew Carpenter

Theses and Dissertations

Fraze mowing offers a new tool used in both overseeding establishment and removal of perennial ryegrass (Lolium perenne L.). Research objectives were to determine the most effective timing of fraze mowing in overseeding establishment and removal, as well as to compare fraze mowing to other establishment and removal methods. Fall overseeding studies suggest that fraze mowing and scalping in mid-October provides the fastest establishment of ryegrass. However, by mid-March all treatments led to visually similar results. When evaluating removal timings, fraze mowing performed in early- and late-May led to faster visual bermudagrass recovery than March and April timings. Early-season application …

Examining Multiple Cellular Pathways At Once Using Multiplex Hextuple Luciferase Assaying, Alejandro Sarrion-Perdigones, Lyra Chang, Yezabel Gonzalez, Tatiana Gallego-Flores, Damian W Young, Koen J T Venken

Faculty, Staff and Students Publications

Sensitive simultaneous assessment of multiple signaling pathways within the same cells requires orthogonal reporters that can assay over large dynamic ranges. Luciferases are such genetically encoded candidates due to their sensitivity, versatility, and cost-effectiveness. We expand luciferase multiplexing in post-lysis endpoint luciferase assays from two to six. Light emissions are distinguished by a combination of distinct substrates and emission spectra deconvolution. All six luciferase reporter units are stitched together into one plasmid facilitating delivery of all reporter units through a process we termed solotransfection, minimizing experimental errors. We engineer a multiplex hextuple luciferase assay to probe pathway fluxes through five …

Residues And Residue Pairs Of Evolutionary Importance Differentially Direct Signaling Bias Of D2 Dopamine Receptors, María E Terrón-Díaz, Sara J Wright, Melina A Agosto, Olivier Lichtarge, Theodore G Wensel

Faculty, Staff and Students Publications

The D2 dopamine receptor and the serotonin 5-hydroxytryptamine 2A receptor (5-HT2A) are closely-related G-protein–coupled receptors (GPCRs) from the class A bioamine subfamily. Despite structural similarity, they respond to distinct ligands through distinct downstream pathways, whose dysregulation is linked to depression, bipolar disorder, addiction, and psychosis. They are important drug targets, and it is important to understand how their bias toward G-protein versus β-arrestin signaling pathways is regulated. Previously, evolution-based computational approaches, difference Evolutionary Trace and Evolutionary Trace–Mutual information (ET-Mip), revealed residues and residue pairs that, when switched in the D2 receptor to the corresponding residues from 5-HT2A, altered ligand potency …

Exploring United Methodist Adults’ Racial Attitudes And Beliefs From A Critical Race Framework To Inform Outreach Efforts With Low-Income, Black Youth In Mississippi, Brittany Radford

Theses and Dissertations

Extensive literature has documented The United Methodist Church’s’ (UMC) commitment to social justice. A current focus in the church is working with economically marginalized populations, including the 231,170 Black children and youth in Mississippi. To better understand adults that serve this population, I conducted an exploratory study to gather baseline data about UMC adults’ contemporary attitudes and beliefs about race, racism, and discrimination. A cross-sectional survey was administered at the 2017 Mississippi Annual Conference of The UMC. Using a critical race lens, I found that most of the attendees espoused moderate color-blind racial attitudes and beliefs about the frequency that …

Attributes Affecting Adoption Of Pollinator Conservation Practices, Shannon M. Westlake

Theses and Dissertations

Pollinator conservation has recently become a topic of greater interest and research around the world as native insect pollinator species increasingly face population declines. In the United States, growing concerns regarding food security and decreased biodiversity have led to the creation of programmatic and best management practices (BMPs) promotional efforts among governmental and non-governmental organizations. These efforts seek to support pollinators on public and private lands by addressing the primary causes of decline (e.g., habitat loss and increased chemical use). Although these organizations have worked diligently to increase awareness and applicability of programs to private landholders, there is still a …

Biochemical Characterization And Regulatory Mechanisms Of Plant Thimet Oligopeptidases Under Oxidative And Reductive Stress, Thualfeqar Almohanna

Theses and Dissertations

Two main Arabidopsis thimet oligopeptidases (AtTOP) involved in stress responses are: (1) thimet metalloendopeptidase 1 (TOP1), found in the mitochondria and chloroplasts, annotated as At5g65620, and (2) thimet metalloendopeptidase 2 (TOP2), found in the cytosol annotated as At5g10540. Both AtTOP1 and AtTOP2 are located on chromosome 5 and share high homology. AtTOP1 and AtTOP2 are zincin-like metalloendopeptidases with the characteristic HEXXH active motif of the M3 clan. Their peptidase activity is related to the oxidative stress triggered by plant immune responses. AtTOPs are involved in plant immune responses through a mechanism regulated by Salicylic Acid (SA); both AtTOP1 and AtTOP2 …

Characterization Of Fatty Acid Composition Of Bull Sperm With Varied Cryotolerance, Holly Evans

Theses and Dissertations

The objectives of this study were to determine fatty acid composition and acrosome status from bull sperm with different freezabilities (n = 12). We hypothesized that lipid fractions had differentiated fatty acid compositions and such differences influence sperm freezability and the sperm acrosome. Fatty acids were extracted from fresh frozen sperm and fractionated by solid-phase extraction. Thirtyour fatty acids were quantified. Saturated fatty acids were predominant, accounting for 71 to 80% of fatty acids in both fractions. Differences in composition between fractions existed (P < 0.001). Branched chain fatty acid concentrations (15 to 18 µg) were almost twice that of polyunsaturated fatty acid concentrations found in the polar fractions (8 to 9 µg; P < 0.001). Sperm with differentiated freezabilities had few differences in 22:0, 18:1 cis 9, and 14:0 13-methyl fatty acids (P ≤ 0.011). Analyses of acrosome status of sperm revealed that acrosomes were affected differently among bulls.

Maintaining Agronomics, Economics, And Furrow-Irrigation Efficiency In Mid-Southern Usa Soybean Conservation Production Systems, Corey Bryant

Theses and Dissertations

Mid-southern USA soybean [Glycine max (L.) Merr.] producers are being pushed to increase adoption of conservation tillage systems as a means of increasing the application efficiency of gravity flow irrigation systems. This research was conducted to determine whether the efficiency of furrow-irrigation systems could be manipulated through conservation tillage systems while maintaining soybean productivity and profitability. Three experiments were conducted near Stoneville, MS on a Dubbs silt loam (Fine-silty, mixed, active, thermic Typic Hapludalfs) to determine the effects of reducing tillage and increasing ground cover residues on irrigation application efficiency, irrigation water use efficiency, soybean grain yield, and net returns …

The Binding Modes Of Diminazene Aceturate With C-Myc G-Quadruplexes, Jerrano Bowleg

Theses and Dissertations

Interactions between DNA and ligands are important in the rational design of drugs and in research into DNA function. In particular, the interaction of DMZ with DNA structures named “G-quadruplexes” was considered. G-quadruplexes are structures present in telomeres and several oncogenes. The main purpose of this project was to provide a computational tool to study DNA ligand interactions using a variety of molecular modeling techniques that include molecular docking, molecular dynamics simulations (MD) and MM/PBSA (Molecular Mechanics/Poisson Boltzmann Surface Area). We investigated the binding modes and binding affinities of DMZ with c-MYC G-quadruplexes (G4s). We found that the conformation and …

The Effect Of Maternal Nutrition And Genetic Background On Myogenic And Adipogenic Development In Skeletal Muscle Of Angus And Brahman Cattle Offspring, Racheal L. Lemire

Theses and Dissertations

The objective of this study was to determine breed specific effects of nutritional insults during gestation on regulation of muscle and adipose tissue growth in beef cattle offspring during fetal and early postnatal development. Angus and Brahman heifers were randomly assigned to 1 of 2 dietary treatments consisting of 100% or 60% based on net energy requirements for gestating heifers. Nutritional treatments were imposed from day 50 to 180 of gestation. Fetuses harvested at 180 days of gestation had smaller frames and spared critical organs. Gene expression in several fetal tissues indicated potential for compensatory growth. Postnatally, Brahman offspring weighed …

The Impact Of A Freshman Orientation Program On Academic Achievement For Students Enrolled In A Community College, James Gray

Theses and Dissertations

The purpose of this quantitative study was to explore the effectiveness of a freshman orientation program on second-semester retention, second-year retention, and cumulative GPA for students enrolled in a community college in the Deep South. The problem addressed in this study is a lack of sufficient academic and social support for college students, limiting their ability to remain in school and with high levels of academic performance (Nora & Crisp, 2007). For this study, the following research questions were analyzed: (1) Are there differences in 1st to 2nd semester retention for program completers with a 17-18 ACT as compared to …

The Morphology, Pigmentation, And Development Of Structural Coloration In Vanessa Cardui (Lepidoptera: Nymphalidae), Emily A. Shelby

Theses and Dissertations

Butterfly wing color patterns are produced by the placement of monochromatic scales that have specific colors due to pigmentation, nanostructures, or a combination of both. Structural coloration results from the interference of light from the architecture of the nanostructures. Structural coloration in butterfly scales has been studied optically, but little is known about the mechanisms used to create these scales compared to scales without structural coloration. Light, scanning, and transmission electron microscopy were used to determine underlying morphological, pigmentation, and developmental differences between blue (i.e., structural) and black (i.e., nonstructural) wing scales of Vanessa cardui. Differences in scale size, pigmentation, …

Development Of Quality Crappie Fishing Opportunities In Mississippi State Lakes, Bryant Haley

Theses and Dissertations

Mississippi is home to many small impoundments, providing anglers with local fishing opportunities. Crappie (Pomoxis spp.) fisheries are highly prized in the state, and managers struggle to meet angler expectations in these smaller systems. From 2015 to 2017, white crappie (Pomoxis annularis) and magnolia crappie (male black crappie Pomoxis nigromaculatus x female white crappie Pomoxis annularis), marked with oxytetracycline and alizarin red s, were stocked into five small Mississippi impoundments to evaluate stocking efficacy and long-term mark retention. Overall stocking contribution to established populations was 0.59% with only one marked fish recovered. An additional 12 lakes ranging in size from …

Minutes Of The Annual Meeting Of The Wyoming State Bar, Wyoming State Bar

Wyoming Law Journal

No abstract provided.

Screening The Cultivable Cave Microbial Mats For The Production Of Antimicrobial Compounds And Antibiotic Resistance, Jerneja Ambrožič Avguštin, Patricia Petrič, Lejla Pašić

International Journal of Speleology

The current work extends the phenotypic characterization of a bacterial culture collection obtained from white, yellow, grey or pink microbial cave wall colonies that are common in the caves of Slovenian Karst. We have determined antibiotic resistance to 22 natural and synthetic antibiotics in 69 isolates from the microbial mats. Thirty-eight isolates (52%) were resistant to 1-5 antibiotics; another 27 isolates (37%) were resistant to 6-10 antibiotics; and 7 isolates (0.1%) were resistant to 11-17 antibiotics. We screened for production of antimicrobial compounds by growing cave isolates on five different media and overlaying individual cultures with ten Gram-positive and Gram …

Bio Buzz Newsletter, Issue 18, December 2019, Denison Biology Department

Biology Buzz Newsletter

No abstract provided.

Bio Buzz Newsletter, Issue 17, June 2019, Department Of Biology

Biology Buzz Newsletter

No abstract provided.

Infection Of Mitochondria In Damselfish Neurofibromatosis: Impacts On Mitochondrial Function And Dna Levels, Merly Laura Ovares

Open Access Dissertations

Damselfish neurofibromatosis (DNF) is a type of cancer affecting Stegastes partitus (Bicolor damselfish) on Florida reefs. The agent which causes the disease, termed the damselfish virus-like agent (DVLA), is the only known agent to replicate within mitochondria of animal cells. Determining the effects DVLA has on mitochondrial function and DNA levels are of importance to further understand DNF, as well as which mechanisms of mitochondrial function are directly affected by DVLA which may cause cancer. Experiments analyzed DNA levels of both DVLA and mitochondria (mtDNA), as well as mitochondrial-mediated metabolism on healthy and tumor tissues. Cell lines were also analyzed …