Digital Commons Network^™

Systems And Methods For Detection Of Chocolate Bloom, Joshua Stewart Heuler, Siyu He, Sharad Ambardar, Dmitri V. Voronin

USF Patents

In an embodiment, a bloom engine is created that can detect the formation of both fat bloom and sugar bloom in a chocolate product. A Raman spectrometer is used to generate a first or reference spectrum of a chocolate product. Based on peaks of the spectrum known to be associated with sugar and peaks of the spectrum known to be associated with fat, a ratio of sugar to fat for the chocolate product is determined based on the reference spectrum. Later, a second spectrum is generated from the chocolate product, and a ratio of sugar to fat is similarly determined …

Computing 2-Body Statistics On Graphics Processing Units (Gpus), Yicheng Tu, Napath Pitaksirianan

USF Patents

Disclosed are various embodiments for computing 2-body statistics on graphics processing units (GPUs). Various types of two-body statistics (2-BS) are regarded as essential components of data analysis in many scientific and computing domains. However, the quadratic complexity of these computations hinders timely processing of data. According, various embodiments of the present disclosure involve parallel algorithms for 2-BS computation on Graphics Processing Units (GPUs). Although the typical 2-BS problems can be summarized into a straightforward parallel computing pattern, traditional wisdom from (general) parallel computing often falls short in delivering the best possible performance. Therefore, various embodiments of the present disclosure involve …

Long-Term Effects Of Collaborative Dementia Care On Quality Of Life And Caregiver Well-Being, Katherine L. Possin, Sarah Dulaney, Alissa B. Sideman, Andrew J. Wood, I. Elaine Allen, Stephen J. Bonasera, Jennifer J. Merrilees, Kirby Lee, Winston Chiong, Tamara L. Braley, Sarah Hooper, Mia Kanzawa, Rosalie Gearhart, Helen Medsger, Krista L. Harrison, Lauren J. Hunt, Rachel E. Kiekhofer, Christopher Chow, Bruce L. Miller, Elan L. Guterman

Faculty Scholarship

INTRODUCTION: Collaborative dementia care models with care navigation, including the Care Ecosystem, improve outcomes for persons living with dementia (PLWDs) and their caregivers. The effects of continuous care over long periods have not been studied.

METHODS: In this randomized clinical trial with 456 PLWD–caregiver dyads with high caregiver burden, we evaluated the cumulative 5-year treatment effect on PLWD quality of life, health care utilization, caregiver depression, self-efficacy, and burden.

RESULTS: Five-year participation was associated with higher quality of life, lower caregiver depression, and higher caregiver self-efficacy (all p’s< 0.05) with a trend for lower burden (p = 0.07). Treatment effects were most robust during the first 2 years. The effects on emergency department visits and hospitalizations were not significant.

DISCUSSION: The benefits of collaborative dementia care on PLWD quality of life …

N-Type Cdte Thin Films For Photovoltaic Applications, Wei Wang

USF Tampa Graduate Theses and Dissertations

Cadmium Telluride is widely used as a thin-film solar cell material due to its nearly ideal optical bandgap (~ 1.5eV) and its high absorption coefficient (> 104 cm-1). In the past several decades, most of the research focused on p-type CdTe solar cells. In recent years, the research on CdTe devices is mainly based on CdSexTe1-x (CST) absorbers, leading to substantial advancements in conversion efficiency, comparable to that of silicon-based solar cells. Presently, p-type polycrystalline CST/CdTe thin-film solar cells exhibit a notable efficiency of 23.1%. The state-of-art CST/CdTe solar cell has attained an almost optimal short-circuit current density (JSC) of …

Strategies To Alleviate Flickering: Bayesian And Smoothing Methods For Deep Learning Classification In Video, Noah Miller, Glen Ryan Drumm, Lance Champagne, Bruce A. Cox, Trevor Bihl

Faculty Publications

Excerpt: Increasing reliance on autonomous systems requires confidence in the accuracies produced from computer vision classification algorithms. Computer vision (CV) for video classification provides phenomenal abilities, but it often suffers from “flickering” of results. Flickering occurs when the CV algorithm switches between declared classes over successive frames. Such behavior causes a loss of trust and confidence in their operations.

Quasi-Static Indentation Characteristics Of Foam-Filled Sandwich Composite Structures With Additively Manufactured Cfrp And Gfrp Corrugated Cores, S.Z.H. Shah, Juhyeong Lee, Khurram Altaf, M. Mohammad, M.Z. Hussain, R.S. Choudhry

Mechanical and Aerospace Engineering Faculty Publications

This paper presents an experimental investigation on the quasi-static indentation performance of polyurethane (PU) foam-filled carbon fibre-reinforced polymer (CFRP) and glass fibre-reinforced polymer (GFRP) corrugated sandwich composite structures (SCSs) under different indenter tip geometries (conical, trapezoidal, hemispherical, pyramidal, and cylindrical shapes). The SCSs were produced using hybrid manufacturing methods: (1) the facesheets were fabricated using the vacuum-assisted resin infusion (VARI) process, (2) the CFRP and GFRP corrugated cores were additively manufactured using the fused filament fabrication (FFF) process, and (3) the self-expanding PU foam-filled the open spaces in the core. The results elucidated that the indenter tip geometry and core …

A Systematic Exploration Of Theoretical, Conceptual, And Methodological Alignment Of Social Network Analysis In Organizational Behavior, Morgan Gleason Miller

College of Science and Health Theses and Dissertations

This systematic review examines how Social Network Analysis (SNA) is used in the study of Organizational Behavior (OB). Industrial-Organizational Psychology Literature suggests SNA tends to be applied using either a structural or relational approach (Erikson, 2013). Some researchers claim that this methodology is applied inconsistently due to the intermingling of two distinct underlying frameworks and the exclusion of individual differences and interpersonal factors limits the relevance of SNA (Erikson, 2013; Kilduff & Lee, 2020). Results indicate the structural perspective is slightly dominant across the use of SNA, but the use of both frameworks is increasing. Directionally, study methods aligned with …

Initial Reactions: Rethinking The Efficacy Of Current Contractual Practies For Consumer Protection, Sarah E. Wellard

College of Science and Health Theses and Dissertations

To protect consumers from unfair contracts, legislatures have implemented measures requiring consumers to signal specific agreement to crucial clauses. One such common practice is requiring consumers to initial specific provisions within contracts. This dissertation investigates the efficacy of initialing and other secondary tasks in promoting consumer understanding and memory of contractual information. Through a series of three experimental studies, participants engaged in tasks involving initialing, semantic processing, or irrelevant letter-classification tasks while processing contract information. Contrary to predictions, the findings failed to show that initialing or other secondary tasks significantly improved consumer’s reported memory or understanding of contract terms, compared …

The Future Of Flying: An Exploration Of New Aircraft Design And Energy Required To Support Advanced Air Mobility – Part 2, Sarah Nilsson

Publications

Lecture exploring new aircraft design and energy required to support advanced air mobility.

Can The Effluent From Wastewater Stabilization Ponds Be Effectively Managed For Health And Nutrient Recovery?, Michael Glass

USF Tampa Graduate Theses and Dissertations

Wastewater stabilization ponds, such as facultative and maturation lagoons, have been shown to be effective processes to manage conventional water quality parameters found in domestic wastewater. The main goal of this thesis is to explore whether wastewater stabilization ponds can simultaneously reduce pathogens to safe levels while supporting agricultural activities through nutrient recovery. A large dataset for water quality of wastewater lagoon effluent in the U.S. was obtained at the state level and combined into regional southern and northern locations. Analysis of data showed there was significant difference in lagoon effluent concentration between northern and southern states for the water …

Compliant Structures Facilitate Less Invasive And Biomechanically Improved Lumbar Spinal Implants, Daniel J. Orr

Theses and Dissertations

Implants used in lumbar spinal fusion and lumbar total disc replacement procedures have improved substantially over the years, however, the opportunity remains to improve either the adjustability, durability, motion, or minimally invasive characteristics which could aid in achieving optimal surgical outcomes. It is hypothesized that the inherent advantages of compliant mechanisms specifically Deployable Euler Spiral Connectors (DESCs) and a new mechanism known as the interior contact aided rolling element (I-CORE) are well suited for each of these applications and will be explored and utilized as the basis of these proposed designs. By addressing these challenges, the research endeavors to improve …

Understanding Contributing Factors To Injury Severity And Improper Driver Actions In Work Zone Crashes And Evaluating Smart Work Zone Applications For Safety Improvement, Rakesh Rangaswamy

USF Tampa Graduate Theses and Dissertations

A work zone can be described as a roadway designated for construction, maintenance, or other activities that temporarily disrupt the normal traffic flow. Due to this disrupts in traffic conditions, work zones may bring sudden shifts in driving experience, depending on the sort of work zone present, creating unpredictable maneuvers, and putting both motorists and workers at risk. To understand these issues, this study uses work zone accident data obtained from Florida and uses several methodological techniques, including the mixed logit model with variance and mean heterogeneity, temporal instability test, log-likelihood test, out-of-sample analysis, and ANOVA test.

Firstly, this study …

The George-Anne, Georgia Southern University

The George-Anne

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• The Artsy Girl

Predicting Air Passenger Traffic At Busy International Airports, Ratana Fraihat

Theses

This thesis presents the development and validation of a machine learning model using Long Short-Term Memory (LSTM) networks to forecast air traffic passenger volumes at international, high-traffic airports. By leveraging historical passenger data, the study seeks to provide accurate predictions that can enhance operational planning and resource allocation at the airport. The implementation was done in Python, using historical passenger data from San Francisco International Airport (SFO) from 2005-2018. Data preprocessing steps involved grouping and summing passenger counts for each activity period. The data was normalized to a range of 0 to 1, which is crucial for preventing instability and …

Pawlingo: Bridging Virtual And Real-World Language Learning Through Mixed Reality, Xueer Wang

Theses

PawLingo harnesses the power of mixed reality (MR) technology to enable users to learn new languages anytime, anywhere. By enhancing the interactivity and immersion of language learning, PawLingo revolutionizes how users engage with new languages. The platform features virtual non-player characters (NPCs), such as a panda representing Mandarin, who guide and interact with users in their daily environments. Whether navigating everyday scenarios like markets or public transit or practicing vocabulary in real-time, PawLingo seamlessly integrates language instruction into the user's surroundings. This research explores the development and impact of PawLingo, highlighting its ability to enhance user engagement, retention, and cultural …

Executive Committee - Minutes, 11/19/2024, Academic Senate

Academic Senate Minutes

No abstract provided.

Childless Mothers: Lived Experiences Of Black Mothers Who Lost An Only Child, Arielle Jordan

Walden Dissertations and Doctoral Studies

This qualitative study, grounded in hermeneutic phenomenology, explores the experiences of Black mothers who have lost their only child, addressing a topic often overlooked in counseling training programs. Many counselor educators and supervisors are unprepared to train counselors on how best to support these mothers through their unique grief journeys. This study outcomes fill that gap by providing a deeper understanding of their experiences, intending to shape better counseling practices. The central question guiding this research is: What are the lived experiences of Black mothers who have survived the loss of their only child? To answer this, in-depth interviews were …

African American Children’S Risk Of Long Covid-19 Syndrome Based On Daily Intake Of Fruits And Vegetables, Christopher Joseph Waskewich

Walden Dissertations and Doctoral Studies

Although the Covid-19 pandemic emerged in 2020, limited information about how the virus affects adolescents regarding long-term health risks is available. This quantitative study focused on the effect of U.S. adolescents' daily diet, race/ethnicity, levels of income, access to health care, age, and comorbidities on the risks of long Covid-19 syndrome. The constructs of the health belief model were used to understand the impact of those variables. The results of the online survey (n=298) with the parents of adolescent children (ages 11-17) from New York City found that adolescents whose daily vegetable consumption was more than the daily recommendations had …

Intrinsic Motivation And Career Satisfaction Among Immigrant Health Care Workers, Michelle Marie Henderson-Darling

Walden Dissertations and Doctoral Studies

Caribbean immigrants are vital to the U.S. health care workforce, yet they face barriers that often hinder their career satisfaction and well-being. This qualitative study aimed to explore how intrinsic motivations, specifically competence, autonomy, and relatedness, shape the career experiences of Caribbean immigrants in health care. Using self-determination theory as the theoretical framework, this study addressed the research question of how these intrinsic motivations shape immigrant experiences in the U.S. health care sector. Data were collected from 10 Caribbean immigrants who were naturalized U.S. citizens using semistructured, audio-recorded interviews. The data were thematically analyzed to detect patterns and themes. The …

Samd7 Represses Short-Wavelength Cone Genes To Preserve Long-Wavelength Cone And Rod Photoreceptor Identity, Leo I Volkov, Yohey Ogawa, Ramiz Somjee, Hannah E Vedder, Hannah E Powell, Deepak Poria, Sam Meiselman, Vladimir J Kefalov, Joseph C Corbo

2020-Current year OA Pubs

The role of transcription factors in photoreceptor gene regulation is fairly well understood, but knowledge of the cell-type-specific function of transcriptional cofactors remains incomplete. Here, we show that the transcriptional corepressor

Efficacy Of High-Definition Transcranial Alternating Current Stimulation (Hd-Tacs) At The M1 Hotspot Versus C3 Site In Modulating Corticospinal Tract Excitability, Gerard Francisco

Faculty, Staff and Student Publications

Previous studies have shown that beta-band transcranial alternating current stimulation (tACS) applied at the M1 hotspot can modulate corticospinal excitability. However, it remains controversial whether tACS can influence motor unit activities at the spinal cord level. This study aims to compare the efficacy of applying tACS over the hotspot versus the conventional C3 site on motor unit activities and subsequent behavioral changes. This study used a randomized crossover trial design, where fifteen healthy participants performed a paced ball-squeezing exercise while receiving high-definition tACS (HD-tACS) at 21 Hz and 2 mA for 20 min. HD-tACS targeted either the flexor digitorum superficialis …

Are Biobased Microfibers Less Harmful Than Conventional Plastic Microfibers: Evidence From Earthworms, W. Courtene-Jones, F. De Falco, F. Burgevin, R. D. Handy, R. C. Thompson

School of Geography, Earth and Environmental Sciences

Biobased plastics are sometimes promoted as “environmentally friendly” compared to their conventional petrochemical-based counterparts, but their ecotoxicity is only partially understood. Biobased fibers are widely used in clothing and wet wipes and can accumulate in soils through the application of biosolid fertilizers. This study examined the lethal thresholds and sublethal toxicity of chemically characterized, additive-free, biobased (viscose and lyocell) compared to petrochemical-based (polyester) fibers on the key ecosystem engineer, Esenia fetida. Viscose and lyocell had LC₂₀ values of 14.00 and 22.66 mg·L^-1, respectively, and no observed effect concentrations (NOEC) of 0-2.8 mg·L^-1 (72 h, OECD TG207 …

Sound Innovations For Biofabrication And Tissue Engineering, Mengxi Wu, Zhiteng Ma, Zhenhua Tian, Joseph Rich, Xin He, Jianping Xia, Ye He, Kaichun Yang, Shujie Yang, Kam W. Leong, Luke P. Lee, Tony Jun Huang

Faculty Publications

Advanced biofabrication techniques can create tissue-like constructs that can be applied for reconstructive surgery or as in vitro three-dimensional (3D) models for disease modeling and drug screening. While various biofabrication techniques have recently been widely reviewed in the literature, acoustics-based technologies still need to be explored. The rapidly increasing number of publications in the past two decades exploring the application of acoustic technologies highlights the tremendous potential of these technologies. In this review, we contend that acoustics-based methods can address many limitations inherent in other biofabrication techniques due to their unique advantages: noncontact manipulation, biocompatibility, deep tissue penetrability, versatility, precision …

Programmable Functional Lattice Structures, Hp Inc

Defensive Publications Series

Lattice structures provide a unique opportunity to engineer material properties, even those not yet exists in solid materials. Through programmable designs, which can be realized using advanced manufacturing techniques such as 3D printing, customer and design specific material properties can be achieved. We present a method for programming lattice structures by adjusting the positions of nodes along beams (referred to as 'offsets'), while maintaining a fixed lattice topology, incorporating a method to accurately predict the programed lattice structures’ property using machine learning-based algorithms. The flexibility of programming lattice structures by node offsets enables the realization of a broad spectrum of …

Research Tools For Graduate Students: Reflections On Eight Years Of Graduate Student Workshops, Lisa Becksford Russell

Journal of Graduate Librarianship

This article will describe the author’s graduate student outreach efforts over the last eight years, including graduate student orientations, open houses, and workshops. The development of a long-running graduate student workshop series is described in detail, and the author shares lessons learned from her outreach experiences.

Helping Our Graduate Students Soar: Promoting Scholarship And Populating Our Institutional Repository, Elaine Wells

Journal of Graduate Librarianship

The author describes how a requirement that our graduate students deposit theses and dissertations into our institutional repository (SOAR) helped to build our online scholarship, educate and strengthen graduate students’ identities as scholars, and forge relationships with the library. Taking advantage of the synergy brought about by a new open access policy, a robust digital repository, and library staff committed to advancing accessible scholarly works, we developed ways to educate, encourage, and promote our newest scholars. Based upon our success thus far, we will develop workshops and tutorials that will be extended to junior faculty to advance their scholarly success.

Uc-131 Karah Khronicles, Dion Green, Jake Stipetich, Grace Bowe, Jesse Israel, Vedasri Malatker

C-Day Computing Showcase

Karah is a thief with a heart of gold, you raid enemy camps and dungeons to steal back the money stolen from towns and villages and upgrade enchanted items to deal with dangerous foes. After successfully returning the wealth to the local town, you must then face down and defeat a general of the evil king.

Should We Stay Or Should We Leave? Multi-Objective Tradeoffs In Identifying Robust Beach Nourishment And Managed Retreat, Prabhat Hegde

Sustainability Seminar Series

In some low-lying coastal areas around the world, decision-makers are beginning to consider “managed retreat” of human populations to adapt to sea-level rise. One of the main challenges in designing a managed retreat strategy is determining when to trigger retreat. Decision-makers lack tools and scientific understanding to evaluate whether the benefits of interim response strategies, like beach nourishment, outweigh the costs of waiting longer to trigger retreat.

In this talk, I will contextualize the coastal beach nourishment problem within the umbrella of decision analyses frameworks for climate change adaptation. I will demonstrate how considerations of uncertainty and multiple objectives improve …

The Shetland Site Report, Nolan E. Preston

North Texas Archeological Society Records

A report about the Shetland Site.

The Shetland Site, Nolan E. Preston

North Texas Archeological Society Records

A report on The Shetland Site, published in a magazine format.