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Information System Availability Status And Its Impact On Customer Wait Times, Joshua A. Cramer Mar 2023

Information System Availability Status And Its Impact On Customer Wait Times, Joshua A. Cramer

Theses and Dissertations

The Military Personnel Flight relies on Air Force Information Systems, specifically the Defense Enrollment Eligibility and Reporting System (DEERS), to manage the personnel records. When DEERS experiences a failure, then the operational ability of the Military Personnel Flight is affected. This study aims at identifying the impact Air Force information system’s availability status has on customer wait times using linear regression.

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Fragility Of The Florida Panhandle's Electrical Transmission Grid To Hurricanes, Zachary D. Schumann Mar 2023

Fragility Of The Florida Panhandle's Electrical Transmission Grid To Hurricanes, Zachary D. Schumann

Theses and Dissertations

The increased frequency and intensity of extreme weather events from climate change necessitates understanding impacts on critical infrastructure, particularly electrical transmission grids. One of the foundational concepts of a grid’s resilience is its robustness to extreme weather events, such as hurricanes. Resilience of the electric grid to high wind speeds is predicated upon the location and physical characteristics of the system components. Previous modeling assessments of electric grid failure were done at the systems level with assumptions on location and type of specific components. To facilitate more explicit adaptation metrics, accurate component-level information is needed. In this study, we build …

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The U.S. Army Officer-To-Unit Assignment Problem, Andrea L. Phillips Mar 2023

The U.S. Army Officer-To-Unit Assignment Problem, Andrea L. Phillips

Theses and Dissertations

Every two to three years, U.S. Army officers must change duty stations, which entails a selection process based on preferences. Currently, officers are assigned to units using a stable-marriage algorithm. Two impracticalities occur within this process. First, officers are required to submit strictly ranked preferences, not allowing indifference among units. Second, the stable-marriage algorithm does not give flexibility to alternative priorities. This research focuses on two modifications to the current model. First, a mixed integer program is created that allows the user, U.S. Army Human Resources Command, to consider other priorities: unit preferences and maximum officer disappointment. Second, generated data …

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An Approximate Dynamic Programming Approach For Solving An Air Combat Maneuvering Problem With Directed Energy Weapons, Elisha A. Palm Mar 2023

An Approximate Dynamic Programming Approach For Solving An Air Combat Maneuvering Problem With Directed Energy Weapons, Elisha A. Palm

Theses and Dissertations

Performing within visual range (WVR) air combat involves the execution of complex air maneuvers and rapid sequential decision making. The complexity of these decisions can increase even further when including additional weapon capabilities. The advancement of unmanned autonomous vehicle technology and weapon capabilities can help combat the hindrance that comes with human limitations. Autonomous unmanned combat aerial vehicles (AUCAVs) and the implementation of advanced weapon capabilities such as Directed Energy Weapons (DEWs) can prove to be vital in a WVR air combat context. This derives the question – Can AUCAV’s possess the proper artificial intelligence and weapon capabilities to attain …

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Bayesian Recurrent Neural Networks For Real Time Object Detection, Stephen Z. Kimatian Mar 2023

Bayesian Recurrent Neural Networks For Real Time Object Detection, Stephen Z. Kimatian

Theses and Dissertations

Neural networks have become increasingly popular in real time object detection algorithms. A major concern with these algorithms is their ability to quantify their own uncertainty, leading to many high profile failures. This research proposes three novel real time detection algorithms. The first of leveraging Bayesian convolutional neural layers producing a predictive distribution, the second leveraging predictions from previous frames, and the third model combining these two techniques together. These augmentations seek to mitigate the calibration problem of modern detection algorithms. These three models are compared to the state of the art YOLO architecture; with the strongest contending model achieving …

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Designing A Counter-Iads Drone Swarm: Using Evolution To Evaluate Combat Assumptions Underpinning Drone Swarm Target Assignment, Olin H. Kennedy Mar 2023

Designing A Counter-Iads Drone Swarm: Using Evolution To Evaluate Combat Assumptions Underpinning Drone Swarm Target Assignment, Olin H. Kennedy

Theses and Dissertations

The original research goal was to combine the best techniques in the drone swarm literature and model a functional combat drone swarm that conducts a Suppression of Enemy Air Defense (SEAD) mission. However, the body of literature regarding Drone Swarm Target Assignment (DSTA) does not model enemy counteraction and assumes that the drones’ targets are compliant against destruction. Therefore, a model of enemy counteraction against drone swarms is developed, and Novel DSTA (NDSTA) is proposed to respond to the weaknesses of the current DSTA. Both methods of target assignment are combined with a tunable trajectory generation model, and the performance …

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Simulation And Analysis Of Dynamic Threat Avoidance Routing In An Anti-Access Area Denial (A2ad) Environment, Dante C. Reid Mar 2023

Simulation And Analysis Of Dynamic Threat Avoidance Routing In An Anti-Access Area Denial (A2ad) Environment, Dante C. Reid

Theses and Dissertations

This research modeled and analyzed the effectiveness of different routing algorithms for penetration assets in an A2AD environment. AFSIM was used with different configurations of SAMs locations and numbers to compare the performance of AFSIM’s internal zone and shrink algorithm routers with a Dijkstra algorithm router. Route performance was analyzed through computational and operational metrics, including computational complexity, run-time, mission survivability, and simulation duration. This research also analyzed the impact of the penetration asset’s ingress altitude on those factors. Additionally, an excursion was conducted to analyze the Dijkstra algorithm router’s grid density holding altitude constant to understand its impact on …

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Overall Effectiveness Superposition Theory For A Film Cooled Leading Edge, Bailey W. Hopkins Mar 2023

Overall Effectiveness Superposition Theory For A Film Cooled Leading Edge, Bailey W. Hopkins

Theses and Dissertations

Film cooling experimentation traditionally reports on the cooling performance of specialty-crafted cooling holes at various angles and array patterns. This is repeated across a variety of model geometries in an effort to provide as much information to the turbine blade designer. While this extensive database of cooling performance is helpful, its true value is found in the designer’s ability to effectively superpose the results on top of each other. One technique for predicting the performance of multiple coolant sources is film cooling superposition theory. This analytical model was employed classically by characterizing the adiabatic effectiveness across a model’s surface; however, …

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Advancing Autonomous Swarm Behavior In A Simulated Anti-Access Area Denial (A2ad) Environment, Chad P. Macwilkinson Mar 2023

Advancing Autonomous Swarm Behavior In A Simulated Anti-Access Area Denial (A2ad) Environment, Chad P. Macwilkinson

Theses and Dissertations

Advancements in modern IADS have bolstered A2AD environments and subsequently degraded the advantages that the Air Force once held, prompting a call to reform the nature of warfare in order to challenge these threats. A solution is weapon swarming technology, which has the ability to overwhelm IADS by engagement of a large numbers of low-cost, but lethal air assets that have autonomous functionalities. This research proposes the application of a four dimensional framework for autonomy to a swarm of cruise missiles. A virtual A2AD environment of two opposing forces is constructed using the AFSIM, wherein a manned bomber seeks to …

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Shock Induced Trailing Edge Separation Effect On F-16 Limit-Cycle Oscillation, Eric D. Stubblefield Mar 2023

Shock Induced Trailing Edge Separation Effect On F-16 Limit-Cycle Oscillation, Eric D. Stubblefield

Theses and Dissertations

No abstract provided.

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Characterizing Jet Interaction Effects On A Cone In Mach 3.9 Flow, Titus J. Lee Mar 2023

Characterizing Jet Interaction Effects On A Cone In Mach 3.9 Flow, Titus J. Lee

Theses and Dissertations

Although jet interaction in the context of attitude control for aircraft and air weapons have been investigated for a variety of conditions and geometries, the knowledge base for their use with hypersonic vehicles is far more limited. The objective of the present investigation is to characterize the jet interaction effects in a Mach 3.9 freestream in the AFIT Small Supersonic Wind Tunnel using schlieren flow visualization and a 6-degree of freedom balance. A 7° aluminum cone was attached to the balance while air was injected through a stainless-steel tube, which was separately supported without any contact with the cone body …

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A Genome-Wide Association Study And Genomic Prediction For Fiber And Sucrose Contents In A Mapping Population Of Lcp 85-384 Sugarcane, Haizheng Xiong, Yilin Chen, Yong-Bao Pan, Ainong Shi Mar 2023

A Genome-Wide Association Study And Genomic Prediction For Fiber And Sucrose Contents In A Mapping Population Of Lcp 85-384 Sugarcane, Haizheng Xiong, Yilin Chen, Yong-Bao Pan, Ainong Shi

Horticulture Faculty Publications and Presentations

Sugarcane (Saccharum spp. hybrids) is an economically important crop for both sugar and biofuel industries. Fiber and sucrose contents are the two most critical quantitative traits in sugarcane breeding that require multiple-year and multiple-location evaluations. Marker-assisted selection (MAS) could significantly reduce the time and cost of developing new sugarcane varieties. The objectives of this study were to conduct a genome-wide association study (GWAS) to identify DNA markers associated with fiber and sucrose contents and to perform genomic prediction (GP) for the two traits. Fiber and sucrose data were collected from 237 self-pollinated progenies of LCP 85-384, the most popular …

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Evolution Of Coronal Magnetic Field Parameters During X5.4 Solar Flare, Seth H. Garland, Benjamin F. Akers, Vasyl B. Yurchyshyn, Robert D. Loper, Daniel J. Emmons Mar 2023

Evolution Of Coronal Magnetic Field Parameters During X5.4 Solar Flare, Seth H. Garland, Benjamin F. Akers, Vasyl B. Yurchyshyn, Robert D. Loper, Daniel J. Emmons

Faculty Publications

The coronal magnetic field over NOAA Active Region 11,429 during a X5.4 solar flare on 7 March 2012 is modeled using optimization based Non-Linear Force-Free Field extrapolation. Specifically, 3D magnetic fields were modeled for 11 timesteps using the 12-min cadence Solar Dynamics Observatory (SDO) Helioseismic and Magnetic Imager photospheric vector magnetic field data, spanning a time period of 1 hour before through 1 hour after the start of the flare. Using the modeled coronal magnetic field data, seven different magnetic field parameters were calculated for 3 separate regions: areas with surface |Bz| ≥ 300 G, areas of flare brightening seen …

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Identification Of Genomic Regions Associated With The Plasticity Of Carbon 13 Ratio In Soybean, Siva K. Chamarthi, Avjinder Kaler, Hussein Abdel-Haleem, Felix B. Fritschi, Jason D. Gillman, Jeffery D. Ray, James R. Smith, Sarah Purcell Mar 2023

Identification Of Genomic Regions Associated With The Plasticity Of Carbon 13 Ratio In Soybean, Siva K. Chamarthi, Avjinder Kaler, Hussein Abdel-Haleem, Felix B. Fritschi, Jason D. Gillman, Jeffery D. Ray, James R. Smith, Sarah Purcell

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Improving water use efficiency (WUE) for soybean [Glycine max (L.) Merr.] through selection for high carbon isotope (C13) ratio may increase drought tolerance, but increased WUE may limit growth in productive environments. An ideal genotype would be plastic for C13 ratio; that is, be able to alter C13 ratio in response to the environment. Our objective was to identify genomic regions associated with C13 ratio plasticity, C13 ratio stability, and overall C13 ratio in two panels of diverse Maturity Group IV soybean accessions. A second objective was to identify accessions that differed in their C13 ratio plasticity. Panel 1 …

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A Novel Covid-19 Herd Immunity-Based Optimizer For Optimal Accommodation Of Solar Pv With Battery Energy Storage Systems Including Variation In Load And Generation, Sumanth Pemmada, Nita Patne, Divyesh Kumar, Ashwini Manchalwar Mar 2023

A Novel Covid-19 Herd Immunity-Based Optimizer For Optimal Accommodation Of Solar Pv With Battery Energy Storage Systems Including Variation In Load And Generation, Sumanth Pemmada, Nita Patne, Divyesh Kumar, Ashwini Manchalwar

Turkish Journal of Electrical Engineering and Computer Sciences

The world has now looked towards installing more renewable energy sources type distributed generation (DG), such as solar photovoltaic DG (SPVDG), because of its advantages to the environment and the quality of power supply it produces. However, these sources' optimal placement and size are determined before their accommodation in the power distribution system (PDS). This is to avoid an increase in power loss and deviations in the voltage profile. Furthermore, in this article, solar PV is integrated with battery energy storage systems (BESS) to compensate for the shortcomings of SPVDG as well as the reduction in peak demand. This paper …

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Classifying Severe And Enduring Anorexia Nervosa: A Literature Review, Phoenix Black Mar 2023

Classifying Severe And Enduring Anorexia Nervosa: A Literature Review, Phoenix Black

University Honors Theses

Little focus is placed on the subsection of the eating disorder patient population who struggle chronically with their illness. This review synthesizes research on the topic to identify gaps in knowledge and reflect on implications for diagnosis and classification of severe and enduring anorexia nervosa. There was some variability between both clinicians and researchers who focused on this patient population, which is discussed based on different classifying criteria used to include or exclude an individual into the study. This review considers traditional methods used for classifying psychiatric diagnoses in relation to this disorder.

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Exploring Perspectives On Social And Emotional Learning Programs In Schools, Gina N. Carruth Mar 2023

Exploring Perspectives On Social And Emotional Learning Programs In Schools, Gina N. Carruth

University Honors Theses

This study explores different viewpoints on the implementation of social and emotional learning (SEL) programs in schools. Using a literature review approach, information was collected through peer-reviewed and online articles to examine the benefits and potential challenges of SEL programs in promoting students' social and emotional development. The findings reveal that while there is widespread support for SEL programs, there are also concerns about its implementation, effectiveness, and potential unintended consequences. This study contributes to the field by highlighting the need for a more nuanced and critical understanding of SEL programs, and their impact on students as well as insight …

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Purinergic Receptors In Lung Disease, Emily Mize Mar 2023

Purinergic Receptors In Lung Disease, Emily Mize

University Honors Theses

Purinergic receptors regulate a wide range of physiological processes including neurotransmission, inflammation, and pulmonary function. This review examines the role of purinergic receptor subtypes in the lung with a focus on their relevance to disease and potential as therapeutic targets in future drug development.

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If It Ain't Broke, Don't Fix It: Understanding The Value In Producing Film Adaptations And Movie Franchises, Courtney Mcdonald Mar 2023

If It Ain't Broke, Don't Fix It: Understanding The Value In Producing Film Adaptations And Movie Franchises, Courtney Mcdonald

University Honors Theses

The business of making movies is not an easy one; in an industry where very few see financial success, risk aversion often takes the wheel. In order to combat the immense amount of uncertainty, existing research has attempted to establish factors of film success, including actor star power and reviews. However, statistical studies evaluating these factors have produced consistently inconclusive results. To approach this idea from another perspective, this paper investigates two specific areas of film—movie adaptations and film franchises—that contain valuable properties not always as explicitly connected to box office results. While many movies are referenced, two film franchises …

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Extracting Extractivism: Technopessimism, Green Anarchism And (Gestures Toward) Indigeneity, Matthew Anglin Mar 2023

Extracting Extractivism: Technopessimism, Green Anarchism And (Gestures Toward) Indigeneity, Matthew Anglin

University Honors Theses

A certain ethics of technology has begun appearing in "extractivismo/extractivism" discourses concerning resource extraction in relation to the greater socio-ecological emergency in order to describe a critique of, inter alia, prevalent conceptions of, and efforts to promote and expand, "sustainable development" and the "renewable energy transition." This thesis reviews political ecology literature concerning various conceptualizations of extractivism, highlighting the critical concept of total extractivism; it focuses on the relatively divergent intellectual resources of technopessimism and green anarchism that converged in the late-twentieth century, revealing another strand of influence coming from interactions with Indigenous peoples--all of which inform …

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Climate Change Proposal: Coupling Equity And Scientific Rigor In Facing Global Warming, Rebecca Mcnicholas Mar 2023

Climate Change Proposal: Coupling Equity And Scientific Rigor In Facing Global Warming, Rebecca Mcnicholas

University Honors Theses

Global warming has detrimental effects on the health and population of our planet. For years, scientists have known that in order to preserve the earth for future generations, it is necessary to adopt more sustainable practices that reduce greenhouse gas (GHG) emissions and waste. Policy makers across the globe have attempted to address the issue but have received pushback from the general public, industry and politicians on the other side, alike. Controversy surrounding necessary changes encompasses issues from livelihood, to affordability, to health equity, to taxation. This multifaceted problem cannot be solved with a simple solution; rather, it requires consideration …

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Paid Sick Leave, Chronic Disease, And Systemic Racism: A Systematic Review, Lauren Yee Mar 2023

Paid Sick Leave, Chronic Disease, And Systemic Racism: A Systematic Review, Lauren Yee

University Honors Theses

The purpose of this systematic review is to assess the impact of paid sick leave (PSL) availability on chronic disease prevention, treatment, and recovery. Furthermore, this study aims to investigate the role of race on this relationship as a possible source of systemic racism. The findings of this review show a growing body of evidence that affirms the statistically significant association between PSL and chronic disease-related outcomes. The availability of PSL has the potential to remove financial barriers allowing employees to access preventative services for chronic diseases. Access to PSL also increases work resumption by improving financial stability after being …

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Nationalist And Non-Nationalist Christianity In The United States, Aaron Epperson Mar 2023

Nationalist And Non-Nationalist Christianity In The United States, Aaron Epperson

University Honors Theses

Christian nationalism has broken into the American news cycle over the last few years through its connection to former President Donald Trump, and it's closely associated with violent events like the January 6th insurrection and the Charlottesville, VA, Unite the Right rally. However, its close association with Trump and depiction in a 24-hour news cycle makes defining what Christian nationalism is--and is not--difficult for those unfamiliar with nationalism and the broader American Christian tradition. This paper hopes to briefly explore what Christian nationalism is within the United States through an exploration of nationalism itself and a discussion of nationalist and …

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Machine Learning-Based Surrogate Models And Transfer Learning For Derivative Free Optimization Of Ht-Pem Fuel Cells, Luis A. Briceno-Mena, Christopher G. Arges, Jose A. Romagnoli Mar 2023

Machine Learning-Based Surrogate Models And Transfer Learning For Derivative Free Optimization Of Ht-Pem Fuel Cells, Luis A. Briceno-Mena, Christopher G. Arges, Jose A. Romagnoli

Faculty Publications

Widespread adoption of high-temperature polymer electrolyte membrane electrochemical systems, such as fuel cells (HT-PEMFCs), requires models and computational tools for accurate optimization and guiding new materials for enhancing performance and durability. In this contribution, knowledge-based modelling and data-driven modelling are combined using Few-Shot Learning and implementing an Automated Machine Learning framework for the generation of Machine Learning-based surrogate models. Applicability of the resulting model for derivative-free optimization is demonstrated. Additionally, a way of considering extrapolation in the optimization task is presented. Results show that although extrapolation is needed to achieve better solutions during optimization, it can be monitored and managed. …

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Surface Plasmon Resonance (Spr) Sensor For Cancer Biomarker Detection, Sreyashi Das, Ram Devireddy, Manas Ranjan Gartia Mar 2023

Surface Plasmon Resonance (Spr) Sensor For Cancer Biomarker Detection, Sreyashi Das, Ram Devireddy, Manas Ranjan Gartia

Faculty Publications

A biomarker is a physiological observable marker that acts as a stand-in and, in the best-case scenario, forecasts a clinically significant outcome. Diagnostic biomarkers are more convenient and cost-effective than directly measuring the ultimate clinical outcome. Cancer is among the most prominent global health problems and a major cause of morbidity and death globally. Therefore, cancer biomarker assays that are trustworthy, consistent, precise, and verified are desperately needed. Biomarker-based tumor detection holds a lot of promise for improving disease knowledge at the molecular scale and early detection and surveillance. In contrast to conventional approaches, surface plasmon resonance (SPR) allows for …

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On The Effect Of Environmental Temperature On Fracture Fatigue Entropy, Mohammad A. Amooie, M. M. Khonsari Mar 2023

On The Effect Of Environmental Temperature On Fracture Fatigue Entropy, Mohammad A. Amooie, M. M. Khonsari

Faculty Publications

Fracture behavior of carbon steel 1018 operating in low-temperature environments is investigated. Specifically, fully-reversed bending experimental tests are performed to examine the efficacy of applying the concept of Fracture Fatigue Entropy (FFE) for predicting fatigue life at different environmental temperatures. A large cooling chamber was constructed that houses the entire bending test rig and maintains the environmental temperature at the desired value down to −10 °C. It is shown that under conditions tested, fatigue life improves at lower operating temperatures. Results also reveal that FFE remains nearly constant and can be used for reliable prediction of fatigue life. Illustrative examples …

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Ultrasonic Mapping Needle, Katie R. Stone, Stu Bembenek Mar 2023

Ultrasonic Mapping Needle, Katie R. Stone, Stu Bembenek

Mechanical Engineering

When gaining access to a vein or organ for the purpose of ablation or other reasons, the common procedural method of entry is to use the Seldinger technique. This has been the standard entry procedure since its introduction in 1953, and the technique has not been modified during this time. While effective, it is prone to complication as it relies solely on the operator's precision and experience. It is our task and goal to develop a modifying kit for this procedure that would aid the operator in this process. It would make use of mapping technology and standard products used …

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Ivd Delivery System, Brandon Low, Jonathan Li, Margaux Faure, Quentin Yamasaki Mar 2023

Ivd Delivery System, Brandon Low, Jonathan Li, Margaux Faure, Quentin Yamasaki

Mechanical Engineering

Cepheid is a molecular diagnostics company that has assigned our senior project team to design a system that automates the current manual transportation of samples between two laboratory rooms. With the focus of retaining the sanitary integrity of both the samples as well as the initial cleanroom, also referred to as the packaging laboratory, our team has designed an extension of the current passthrough that will contain all other subsystems. In order to automate the transportation of the samples, the design employs a track and trolley system to be purchased and mounted within the passthrough. A verification prototype was built …

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Latexin Regulates Sex Dimorphism In Hematopoiesis Via Gender-Specific Differential Expression Of Microrna 98-3p And Thrombospondin 1, Xiaojing Cui, Cuiping Zhang, Fang Wang, Xinghui Zhao, Shuxia Wang, Jinpeng Liu, Daheng He, Chi Wang, Feng-Chun Yang, Sheng Tong, Ying Liang Mar 2023

Latexin Regulates Sex Dimorphism In Hematopoiesis Via Gender-Specific Differential Expression Of Microrna 98-3p And Thrombospondin 1, Xiaojing Cui, Cuiping Zhang, Fang Wang, Xinghui Zhao, Shuxia Wang, Jinpeng Liu, Daheng He, Chi Wang, Feng-Chun Yang, Sheng Tong, Ying Liang

Markey Cancer Center Faculty Publications

Hematopoietic stem cells (HSCs) have the ability to self-renew and differentiate to all blood cell types. HSCs and their differentiated progeny show sex/gender differences. The fundamental mechanisms remain largely unexplored. We previously reported that latexin (Lxn) deletion increased HSC survival and repopulation capacity in female mice. Here, we find no differences in HSC function and hematopoiesis in Lxn knockout (Lxn-/- male mice under physiologic and myelosuppressive conditions. We further find that Thbs1, a downstream target gene of Lxn in female HSCs, is repressed in male HSCs. Male-specific high expression of micro- RNA 98-3p (miR98-3p) contributes to Thbs1 suppression in male …

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Exploring The Phenomenon Of Hope In Adult Illiterate Haitians, Donita Grissom, Joyce Nutta, Edwidge Crevecoeur-Bryant, Sherron K. Roberts Mar 2023

Exploring The Phenomenon Of Hope In Adult Illiterate Haitians, Donita Grissom, Joyce Nutta, Edwidge Crevecoeur-Bryant, Sherron K. Roberts

Journal of Global Education and Research

Snyder’s hope theory depicts hope, through the frame of positive psychology, as a cognitive construct with the perceived sense of goal-directed, pathways, and agency thinking (Snyder et al., 1991). Hope levels have been measured in various countries; however, no research to date focused on Haitians. This study, conducted in Petit-Goâve, Haiti, addressed this gap by investigating hope, pathway, and agency levels derived from 135 Haitian-Kreyol adult literacy course participants. This manuscript reports scores of illiterate Haitians’ hope levels utilizing Snyder’s Adult Hope Dispositional Scale; the scores are explained by Snyder’s hope theory taking Haitian cultural and social landscapes into account. …

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