Digital Commons Network^™

Transferability Of Maxent And Expert Opinion Models For American Beaver, Isidro A. Barela

Theses and Dissertations

Modeling habitat suitability is beneficial for management and conservation of a species. Although data-rich models are commonly used, opinion-based models may be a beneficial alternative to estimate suitable habitat locations. Despite the increasing use of habitat models, few studies have linked habitat model covariates (i.e., land cover, weather, and normalized difference vegetation indexes (NDVI)) to demographic parameters. This study evaluates model performance and transferability of maximum entropy (MaxEnt) and expert opinion models for predicting American beaver (Castor canadensis) distribution in the southeastern US. I also investigated the relationship of environmental and habitat model covariates to beaver survival. The model’s predictive …

Determination Of Salient Design Elements Through Eye Movements, Aesthetics, And Usability, Bryan C. Asuncion

Theses and Dissertations

The goal of study 1 was to use a remote eye tracker to understand how eye movements change with 7 geometrically varied remote controls to determine design element saliency. 20 participants were used to measure the following eye metrics: number of fixations prior to first fixation of any AOI, time to first fixation of an AOI, number of fixations on an AOI, dwell time of the first fixation on an AOI, total dwell time of an AOI, and the percentage of time spent on an AOI. The results of the study showed that all participants spent between 75-85% of their …

Health Science Curriculum For Early Childhood: Teacher Implementation And Impact On Child Health Knowledge, Carla J. Mays

Theses and Dissertations

This dissertation contains two secondary quantitative data analyses studies. In the first, implementation of the WannaBee Healthy? Be Smart! Be Active! Be a Leader! health science curriculum was examined to expand understanding about teacher usage of an integrated health curriculum. Specifically, researchers assessed the amount of activities within each curriculum domain (i.e., books, creative expressions, language/literacy, math, science) and the number of activities within each theme of the lessons (i.e., nutrition, physical activity, sleep) utilized by participating teachers. Prior to implementation, teachers (N = 68; M age = 35.5 years old) attended a one-hour training where use of the curriculum …

Healthcare Experiences Of Transgender Mississippians: A Qualitative Study, Micah D. King

Theses and Dissertations

For this study, in-depth, semi-structured interviews were conducted with 16 transgender adults who lived, or had previously lived, in Mississippi and sought healthcare services in the state. The questions asked focused on identifying the barriers to care that these individuals faced as well as the strategies for navigating the barriers they employed. Recommendations for providers were also considered.

Revision Of The Subgenus Prionus (Neopolyarthron) Semenov (Coleoptera: Cerambycidae: Prioninae) In North America, With Notes On Prionus (Antennalia) Casey, Terence L. Schiefer

Theses and Dissertations

The classification of North American species of Prionus (Prionus) Geoffroy is reevaluated, with three subgenera recognized: P. (Antennalia) Casey, revived status, P. (Neopolyarthron) Semenov, revived status, and P. (Prionus). Prionus (Neopolyarthron) is revised and consists of P. imbricornis (Linnaeus), P. debilis Casey, revived status, and P. cuneatus Casey, revived status, with the latter two species removed from synonymy with P. imbricornis. Prionus robustus Casey, new synonymy, and P. fissicornis parviceps Casey, revised synonymy, are transferred from synonymy with P. imbricornis to synonymy with P. cuneatus and P. fissicornis respectively. Keys to North American subgenera of Prionus and to species of …

False Memories In Recognition Memory: Recollection Or Familiarity?, Alexis E. Payne

Theses and Dissertations

False recollection refers to the retrieval of contextual information associated with an event that has not occurred. For instance, during a recognition task, one might identify a nonstudied word presented at test as old because she remembers the font color of the word during study. Although instances such as this are rare and typically occur at a varying rate of 0-5%, current models of recognition such as the Complementary Learning Systems (CLS) model and the Dual-Process Signal-Detection (DPSD) model do not contain a mechanism to account for their occurrence. Although both the CLS and DPSD models have support from studies …

A Functional Developmental Genomics Analysis Of Rin4 And Exocyst Genes As They Relate To Glycine Max Defense To The Plant Parasitic Nematode Heterodera Glycines Infection, Keshav Sharma

Theses and Dissertations

The initial interaction of vesicle and the target membrane prior to their fusion is called vesicle tethering, a process mediated by an octameric protein complex called the exocyst. The exocyst connects vesicles and binds them to phosphatidylinositol 4, 5-biphosphate (PI (4,5) P2), located on the plasma membrane. The exocyst complex is located at the target site, helping to prepare the soluble N-ethylmaleimide-sensitive fusion protein attachment protein (SNAP) receptor (SNARE) for docking and subsequent release of vesicular contents after fusion. The importance of the exocyst in cellular processes is inevitable since it performs central roles in exocytosis thereby inducing SNARE-mediated membrane …

An Elastic Constitutive Model Of Spacetime And Its Applications, Tichomir G. Tenev

Theses and Dissertations

We introduce an elastic constitutive model of gravity that enables the interpretation of cosmological observations in terms of established ideas from Solid Mechanics and multiscale modeling. The behavior of physical space is identified with that of a material-like medium called "cosmic fabric," which exhibits constitutive behavior. This cosmic fabric is a solid hyperplate that is broad in the three ordinary spatial dimensions and thin in a fourth hyperspatial dimension. Matter in space is treated as fabric inclusions that prescribe in-plane (three-dimensional) strain causing the transverse bending of the fabric into the fourth hyperspatial dimension. The linearized Einstein-Hilbert action, which governs …

System Dynamics Model Of Necrotic Enteritis And Its Predisposing Factors In Broilers, Yu-Bin Chou

Theses and Dissertations

Necrotic enteritis (NE) caused by Clostridium perfringens type A is an important bacterial enteric disease of global broiler production. However, the dynamic interactions of NE and its predisposing factors are not fully presented by current studies. By using the System Dynamics (SD) Model, the epidemiological changes in susceptible-infected-removed models of NE and avian coccidiosis and their interactions in one or multiple grow-out cycles was established; meanwhile, the growth performance was measured by the average weights of infected and non-infected populations at harvest were estimated. The SD model provided direct and persuasive outcomes of the epidemiology and ecology of NE compared …

Landowner Perceptions Of Oil And Gas Development In Mississippi And Policies Associated With Managing The Industry And Natural Resources, Rachael Carter

Theses and Dissertations

Advances in oil and gas drilling technologies have led to an on-shore shale boom in the United States. This has increased drilling on forest land and conflicts regarding the tradeoffs of this practice. This study examines the forest landowner perspective of oil and gas development on forest land, policies that regulate the industry, opinions of land use tradeoffs, and what influences landowner decision making. This study also examines the balance of power between federal, state, and municipal government regarding the regulation of the oil and gas industry. A systematic random sample of 1200 landowners with more than 10 acres of …

Modification Of Training Methods And Alarm Thresholds: Two Ways To Reduce Potential Hazardous Clinical Alarm Related Incidents, Manikantan Shanmugham

Theses and Dissertations

Within the healthcare system, nurses, are involved in many critical steps of the patient care process such as surgery triaging, post-procedure recovery monitoring and handoff release to a caregiver. A significant portion of their time is spent on the hospital floors where patients recover from their medical procedures. In today’s healthcare environments, multiple devices – typically monitors, ventilators, and infusion pumps – are used during said patient recovery process. Health equipment manufacturers often add alarms to medical devices, which serve a variety of purposes, ranging from simple notifications to warnings and alerts about potential hazards that require rapid action. In …

Organic And Inorganic Contaminants Removal From Water With Engineered Biochar, Narada Bombuwala Dewage

Theses and Dissertations

Water pollution represents one of the major concerns of the modern world, after scientific and industrial development that generates hazardous organic and inorganic contaminants. Biochar (BC) has gained tremendous attention in the past decade as a cheap and efficient adsorbent for organic and inorganic contaminants from aqueous solutions. BC is considered to be a low-cost alternative to activated carbon, however, BC typically suffer performance reductions due to their low surface areas and poor mechanical properties. The main objective of this work is to develop novel biochar materials by modifying the biochar surface for the removal of organic and inorganic contaminants …

Procedural Calibration Of Haploscope Wings To Establish Accurate Focal Vergence Depth, Kristen Leigh Massey

Theses and Dissertations

This thesis project was undertaken with the intent to discover the source of a known but hitherto unexplained error in the calibration of the wings for a haploscope used in depth perception studies. The angles of the haploscope wings are used to control the vergence angle of the virtual images projected into each eye. This accounts for a strong depth cue used in AR and depth perception studies. Two experiments were devised to both display and attempt to characterize the error between the theoretical wing angles needed to cause a user's vision to verge at some focal depth and the …

Fatigue Crack Growth Tests And Analyses On A Ti-6al-4v (Stoa) Alloy Using The Proposed Astm Procedures For Threshold Testing, Aniket Chandrakant Mote

Theses and Dissertations

This thesis investigates fatigue crack growth rate behavior in the threshold and near-threshold regimes for a Ti-6Al-4V (STOA) alloy using two proposed ASTM procedures- (1) load-shedding (LS) using a larger load-shed rate than the current ASTM Standard E647 load-reduction (LR) test procedure, and (2) compression pre-cracking constant-amplitude (CPCA) or load-increasing (CPLI) and load-shedding (CPLS). Tests were conducted at a low stress ratio (R = 0.1) on compact C(T) specimens of two different widths (W = 51 and 76 mm) and threshold fatigue crack growth rates were generated. These test data were compared to previous test data produced from the same …

Functional Role Of Protein Kinases And Phosphatase In Abiotic Stress Response In Plants, Saroj Kumar Sah

Theses and Dissertations

Soybean (Glycine max) and rice (Oryza sativa) are the most important crops cultivated worldwide. The productivity of both crops is severely limited due to drought stresses. Abscisic acid (ABA) signaling is one of the crucial phytohormones which acts as the signaling mediator in different environmental stress for adaptive response of plants. In this study, functional characterization of abscisic acid-activated protein kinase-like kinase 1 (AALK1), and low molecular weight protein tyrosine phosphatase (LMWPTP) were studied by developing gain-ofunction and loss-ofunction phenotypes by transgenesis. Physiological response of AALK1 showed that AALK1 modulates the drought stress response ins soybean plants. The study has …

Impact Of Integrated Vegetation Management Practices On Green Antelopehorn Milkweed (Asclepias Viridis Walter) In Right-Of-Ways And Forages, Nolan Hendrix Thorne

Theses and Dissertations

Common integrated vegetation management (IVM) practices including herbicide and mowing applications on right-of-ways and forages were evaluated on green antelopehorn populations near Starkville, MS. Live stems in each plot were counted prior to treatment application and approximately one year after treatment (YAT). Analysis of the stem counts 1YAT indicated aminopyralid+metsulfuron, imazapyr, picloram+2,4-D, maximum rates of triclopyr ester or choline, glyphosate, imazapyr+aminocyclopyrachlor+metsulfuron reduced the number of green antelopehorn stems compared to the untreated. Aminocyclopyrachlor, aminocyclopyrachlor+chlorsulfuron, aminopyralid, aminopyralid+2,4-D, dicamba+2,4-D, foramsulfuron+iodosulfuron+thiencarbazone, fluroxypyr, hexazinone, metsulfuron, metsulfuron+chlorsulfuron, nicosulfuron+metsulfuron, sulfometuron, sulfosulfuron or low rates of triclopyr did not reduce the stem count 1YAT when compared to …

Afterschool Educators' Teaching Practices Through Tinkering: Nurturing Student Collaboration, Engagement, And Development Of Self-Confidence, Lianna Kali

Master's Theses

Since the early 2000s constructionist pedagogy has become an increasingly popular trend in both formal and informal science, technology, engineering, art, and math (STEAM) learning environments to support transformative educational outcomes through the making of personally meaningful objects and artifacts. But with this rise in popularity comes a challenge for educators: understanding what are the teaching practices that are most effective in a maker-centered learning environment to support student learning. Through an ethnographic case study of the teaching practices in a tinkering afterschool program, this study examines the core pedagogical facilitation moves of tinkering educators and investigates how those moves …

The Cult Of Names, Shaydanay A. Urbani

Capstones

The Mormon church keeps extensive records of its members. This is a personal story about how I tried to get my record removed, 15 years after leaving the church, as well as a short history of naming, women, and theology.

Boom And Bust: How Private Detention Centers Wreak Economic Havoc On The Counties That Turn To Them For Stability, Max W. Parrott, Reynaldo Leanos Jr.

Capstones

In 2015, a riot broke out at a federal prison in a small Texas town not far from the U.S.-Mexico border. Prisoners tore through the kevlar tents of their dorms and a fire broke out, rendering the private prison uninhabitable. The facility was an economic engine for the impoverished, Rio Grande Valley county, so when the facility closed, it left the county $2 million short of its estimated budget, with $78 million in unpaid bonds and 400 fewer jobs for a population of about 21,000 people. This summer, three years after experiencing near economic collapse, Willacy County rushed back into …

A Modern-Day Affliction: Did Wifi Make Joel Dean Sick?, Dominic Mckenzie

Capstones

Electromagnetic Hypersensitivity is one of many disorders that exist in a strange border zone between recognized syndromes and discredited ones. One young man, a computer engineer by trade, had his life turned upside down by the disorder that has doctors and scientists across the world confused on how to treat it. Here's his story:

https://medium.com/@dominic.mckenzie/capstone-1dd7ff866a29

Automatic Modulation Classification Using Cyclic Features Via Compressed Sensing, Andrew J. Ramsey

Theses

Cognitive Radios (CRs) are designed to operate with minimal interference to the Primary User (PU), the incumbent to a radio spectrum band. To ensure that the interference generated does not exceed a specific level, an estimate of the Signal to Interference plus Noise Ratio (SINR) for the PU’s channel is required. This can be accomplished through determining the modulation scheme in use, as it is directly correlated with the SINR. To this end, an Automatic Modulation Classification (AMC) scheme is developed via cyclic feature detection that is successful even with signal bandwidths that exceed the sampling rate of the CR. …

Housing Condition Impact On Pae Learning And Bdnf Expression., Annette K. Fernandez Oropeza

Biomedical Engineering ETDs

Prenatal alcohol and early life stress exposure are associated with reduced levels of BDNF in the frontal cortex. Several studies have implicated (BDNF) in frontal cortex as important contributor of learning and memory. In the present study, we look to determine whether early housing conditions could mitigate the impact of prenatal alcohol exposure on learning as well as BDNF expression in sex-specific manner in frontal cortex of mice. Compared to control, prenatal alcohol mice expresses reduced total BDNF levels and displayed reduced freezing behavior response during contextual fear conditioning in both female and male mice. Female displayed increased BDNF levels …

An Engineered Fit-For-Purpose Polymer Nanocomposite Seal Repair Material For Wellbores, Moneeb Genedy

Civil Engineering ETDs

Seal integrity of wellbores has become of significant interest due to repeated leakage and spill incidents occurring worldwide that jeopardize both human health and the environment in addition to causing significant economic burden. This is attributed to the fact that wellbores intersecting geographical formations contain potential leakage pathways. The cement-steel and cement-rock formation interfaces are recognized as two critical leakage pathways.

A seal repair material that has good bond strength with both steel and rock formations in addition to the ability to completely fill thin microcracks is needed to restore the seal integrity of wellbores. In this research, engineered polymer …

Integration Of A Commercial Smart Thermostat To The Aggregated Load Control Simulation Framework, Jee Won Choi

Mechanical Engineering ETDs

As part of an effort to achieve a better balance between the power demand and supply, load (demand) control simulation framework is previously developed. In the framework, HVAC load is used as a control resource, driven by the thermostat logic modeled within the framework. However, it has not been proved, whether a com- mercial thermostat is able to perform modeled thermostat’s features. Therefore, it is desired to integrate a commercial thermostat to the framework, to verify its capabil- ity of participating and performing the Demand Response (DR) scheme developed. A ‘Nest Learning Thermostat’ is selected as a commercial thermostat. Nest …

Development Of The University Of New Mexico Spectrometer For High-Resolution Fission Product Yield Data, Richard Emery Blakeley

Nuclear Engineering ETDs

Well-defined fission product yield data has been of increasing interest in various applications within the nuclear industry. With this need in mind, a fission fragment mass spectroscopy system was designed and developed at the University of New Mexico in collaboration with the Los Alamos National Laboratories with a stated goal of attaining a mass resolution of ≤ 1 % (FWHM/centroid) for light fragments and near 1 % for heavy fragments. The mass spectrometer utilized in this work consists of a transmission time-of-flight detection system to measure fission product velocity and an axial ionization chamber to measure the fission product energy, …

Micrat: A Novel Algorithm For Inferring Gene Regulatory Networks Using Time Series Gene Expression Data, Bei Yang, Yaohui Xu, Andrew Maxwell, Wonryull Koh, Ping Gong, Chaoyang Zhang

Faculty Publications

Background: Reconstruction of gene regulatory networks (GRNs), also known as reverse engineering of GRNs, aims to infer the potential regulation relationships between genes. With the development of biotechnology, such as gene chip microarray and RNA-sequencing, the high-throughput data generated provide us with more opportunities to infer the gene-gene interaction relationships using gene expression data and hence understand the underlying mechanism of biological processes. Gene regulatory networks are known to exhibit a multiplicity of interaction mechanisms which include functional and non-functional, and linear and non-linear relationships. Meanwhile, the regulatory interactions between genes and gene products are not spontaneous since various …

Clinical And Genetic Associations Of Renal Function And Diabetic Kidney Disease In The United Arab Emirates: A Cross-Sectional Study, Wael M. Osman, Herbert F. Jelinek, Guan K. Tay, Ahsan H. Khandoker, Kinda Khalaf, Wael Almahmeed, Mohamed H. Hassan, Habiba S. Alsafar

Research outputs 2014 to 2021

OBJECTIVES: Within the Emirati population, risk factors and genetic predisposition to diabetic kidney disease (DKD) have not yet been investigated. The aim of this research was to determine potential clinical, laboratory and reported genetic loci as risk factors for DKD.

RESEARCH DESIGN AND METHODS: Four hundred and ninety unrelated Emirati nationals with type 2 diabetes mellitus (T2DM) were recruited with and without DKD, and clinical and laboratory data were obtained. Following adjustments for possible confounders, a logistic regression model was developed to test the associations of 63 single nucleotide polymorphisms (SNPs) in 43 genetic loci with DKD (145 patients with …

Users’ Perception Of Information Sources And Services At Vardhaman College Of Engineering (Autonomous) Library, Hyderabad: A Case Study, Srinivasulu Palikiti, Srinivasulu P

Library Philosophy and Practice (e-journal)

Currently, Engineering College Libraries in South India is in various stages of advancement with regard to sources, services and facilities. The VCE Central Library subscribes to a number of print periodicals (national & international), electronic resources (e-journals and e-books) and multiple volumes of books to satisfy the information needs of its users. VCE is renowned and as well as one of the leading institutions of Engineering Education in Telangana State. This paper describes the offering of the Information Sources and Services to the faculty members of Central Library, Vardhaman College of Engineering (Autonomous), Hyderabad and the purpose of this study …

Predicting Knowledge Sharing Behaviour Among Non-Academic Staff In University Of Ibadan, Nigeria, Samuel Oluranti Oladipupo, Titilade Hafsat Abdulrahman Mrs

Library Philosophy and Practice (e-journal)

Knowledge sharing in higher institution of learning such as Universities is important to improved productivity. The purpose of this study is to analyse psychological motivations underlying non-academic staff’ knowledge sharing behaviour (KSB) in University of Ibadan using the theory of planned behaviour (TPB). A questionnaire survey was conducted among non-academic staff from 13 faculties in the University of Ibadan. A total of 276 usable questionnaires were collected. Multiple regression analysis is applied to test the research model and hypotheses. Findings from the study revealed that non-academic staff’ knowledge sharing intention is significantly influenced by attitude, subjective norm and perceived behavioural …

Association Between Spatial Access To Food Outlets, Frequency Of Grocery Shopping, And Objectively-Assessed And Self-Reported Fruit And Vegetable Consumption, Jared T. Mcguirt, Stephanie B. Jilcott Pitts, Alison Gustafson

Dietetics and Human Nutrition Faculty Publications

Because supermarkets are a critical part of the community food environment, the purpose of this paper is to examine the association between accessibility to the supermarket where participants were surveyed, frequency of shopping at the supermarket, and self-reported and objectively-assessed fruit and vegetable consumption. Accessibility was assessed using Geographic Information Systems (GIS) measured distance and multiple versions of the modified Retail Food Environment Index (mRFEI), including a localized road network buffer version. Frequency of shopping was assessed using self-report. The National Cancer Institute Fruit and Vegetable screener was used to calculate daily servings of fruits and vegetables. Skin carotenoids were …