Digital Commons Network^™

Single-Input Signature Register-Based Time Delay Reservoir, David Pastuch

Theses

Machine learning continues to play a critical role in our society. The ability to automatically identify intricate relationships in large volumes of data has proven incredibly useful for problems such as automatic speech recognition and image processing. In particular, neural networks have become increasingly popular in a wide set of application domains, given their ability to solve complex problems and process high-dimensional data. However, the impressive performance of state-of-the-art neural networks comes at the cost of large area and power consumption for the computation resources used in training and inference. As a result, a growing area of research concerns hardware …

Learning Multi-Step Robotic Manipulation Tasks Through Visual Planning, Sulabh Kumra

Theses

Multi-step manipulation tasks in unstructured environments are extremely challenging for a robot to learn. Such tasks interlace high-level reasoning that consists of the expected states that can be attained to achieve an overall task and low-level reasoning that decides what actions will yield these states. A model-free deep reinforcement learning method is proposed to learn multi-step manipulation tasks. This work introduces a novel Generative Residual Convolutional Neural Network (GR-ConvNet) model that can generate robust antipodal grasps from n-channel image input at real-time speeds (20ms). The proposed model architecture achieved a state-of-the-art accuracy on three standard grasping datasets. The adaptability of …

Numerical And Experimental Investigation Of Aerosol Jet Printing, Srikanthan Ramesh

Theses

Bacterial contamination of medical devices remains a threat to the success of many medical interventions. Oral administration of antibiotics is a convenient, non-invasive way to treat infections. Most orally administered drugs, however, encounter biochemical and biological barriers that reduce their bioavailability at the target site. Therefore, prophylactic physico- chemical changes of biomaterial surfaces are considered alternatives to inhibit bacterial aggregation and subsequent biofilm formation. Millions of years of evolution have enabled nature to develop micro-topographical surface features specifically designed to avoid bacterial attachment and colonization. Examples of such topographies can be seen on insect cuticles, plant leaves, and the feet …

Dean's Research Newsletter, April 2022, Jerry L. Nadler

SOM Dean's Research Newsletter

No abstract provided.

Dean's Report-Spring 2022, Marina K. Holz

GSBMS Dean’s Report

No abstract provided.

Noninvasive In Vivo Optoacoustic Imaging Of Alcohol Use Disorder Using A Mouse Model Of Alcohol Use Disorder, Augustine Meombe Mbolle

USF Tampa Graduate Theses and Dissertations

This research has two parts. The first part focuses on the use of photoacoustic imaging (PAI) to study alcohol-induced effects in the cerebral vasculature of selectively bred alcohol-preferring mice. Part two extends the application of PAI by developing a novel Photoacoustic imaging guided system for repetitive low intensity focused ultrasound (PAI-LIFU) stimulation treatment for alcohol use disorder in crossed high alcohol preferring (cHAP) mice.

Photoacoustic imaging is an emerging hybrid non-invasive optical imaging modality which relies on optical absorption contrast to visualize deep tissue structures and function. It combines the high contrast associated with pure optical imaging and the high …

Block Copolymer Directed Self-Assembly: Exploring The Efficacy Of Applications In Semiconductor Fabrication, Jakin Bryce Delony

USF Tampa Graduate Theses and Dissertations

Over the course of the past 80 years, semiconductor devices have become increasingly ubiquitous in everyday life.From constructing mainframes that encompassed entire rooms during the 1940s, to inventing personal computers in the 1980s, to developing progressively faster smartphones and wearable technology in the 2010s, the primary driving force behind the Digital Revolution has been increasing transistor counts, and thus computing power, via incremental improvements in optical lithography. In 1965, Intel co-founder Gordon Moore boldly predicted that the transistor density of semiconductor devices would double approximately every 18-24 months. While this prediction -- now colloquially referred to as Moore's Law -- …

An Exploratory Study Of Technology Use By Older/Senior Men For Enrichment, Communication, And Social Connectedness, Emerson Campbell Hardy

USF Tampa Graduate Theses and Dissertations

More older adults are moving toward options for digital connection; keeping up with and learning technology is challenging. Older adults’ perceptions of the difficulty of learning to use technology may contribute to their hesitancy to adopt technology options (Barnard, Bradley, Hodgson, & Lloyd, 2013). The purpose of this study was twofold: (1) to explore the experiences of older/senior men learning and using technology for enrichment, communication, and social connectedness; and (2) to identify learning experiences and/or supports that aided these older/senior men in building knowledge, confidence, and comfort in technology use.

This was an exploratory qualitative study utilizing in-depth interviews. …

Applied Anthropology Of Addiction In Clinical Spaces: Co-Developing And Assessing A Novel Opioid Treatment Pathway, Heather Diane Henderson

USF Tampa Graduate Theses and Dissertations

Historically, there has been no clear treatment pathway for opioid use disorder (OUD) patients who seek emergency care. Utilizing a trajectories of addiction framework, this dissertation presents insights from an applied anthropology of addiction study in an acute care setting to build a medication for opioid use disorder (MOUD) treatment pathway, aiming to break down the stigma related to opioid use disorder (OUD) and mitigate a lack of treatment options. This dissertation took place in an urban trauma center in Florida, from 2018 to 2021. With almost 1500 hours of participant observation, hundreds of informal interviews, and 30 formal interviews, …

Development And Initial Validation Of The Parent And Family Engagement In Higher Education Measure, Michelle R. Mcnulty

USF Tampa Graduate Theses and Dissertations

Throughout the history of higher education in the United States, parents and family members of college students have often found themselves as obsolete to the postsecondary experience. Minimal research has been dedicated to understanding the experience of parents and family members of college students until the millennial generation began their collegiate years (Harper et al., 2012; Wartman & Savage, 2008). In consideration of a new generation of college students (i.e., Gen Z) and the ongoing impact of the COVID-19 global pandemic, it is crucial to illuminate the complexities of parent and family engagement in higher education and the needs of …

Empirical And Modeled Δ13c And Δ15n Isoscapes In The Gulf Of Mexico And Their Application To Fish Eye Lens Migration Studies, Brianna Michaud

USF Tampa Graduate Theses and Dissertations

Isoscapes are depictions of the spatial patterns of isotopic values in a given area. Isoscapes can be created using measurements form samples (empirical isoscapes) or using statistical models of spatial isotopic variation (modeled isoscapes). Isoscapes have a wide variety of potential applications though, in the realm of marine ecology, they are most often used infer ecological processes, food web linkages, the origin of samples, and the movements of marine organisms.

However, to use isoscapes for these applications, it is necessary to have isoscapes at spatial scales relevant to the application in question. It is also necessary to have isoscapes that …

The Boy Scouts Of America Merit Badge Program And Career Development, Todd R. Van Auken

USF Tampa Graduate Theses and Dissertations

The purpose of the study was to determine whether a youth’s career development, as defined by the Career Maturity Inventory (CMI Form C), is associated with motivation, student grade level, and number of merit badges earned as a result of participation as Boy Scouts. For close to three decades there has been a call to improve career counseling for middle and high school youth. However, due to a shortage of school counselors in middle and high schools, counselors are inundated with heavy workloads of various responsibilities and do not always have the ability to focus on youth career development. Thus, …

Portland State Magazine, Portland State University. Office Of University Communications

Portland State Magazine

PSU’s alumni magazine, published 2-3 times a year. In this issue: Portland State mobilizes for the next era of climate action; with perseverance and a little help, it’s never too late to graduate; three scientists answer the question: How do you stay hopeful and motivated to make a difference with climate change?; Portland State researchers are investigating how to help the most vulnerable parents; opera retakes the stage with the “Merry Wives of Windsor”; a record-breaking steeplechase runner finds his way; remembering Charles Moose, Portland's first Black police chief, and more.

Monitoring The Hydrologic And Water Quality Performance Of A Subsurface Gravel Wetland, Catherine Sullivan

Master's Theses (2009 -)

Managing stormwater is a crucial task for many communities that are required to mitigate the harmful effects of pollution from urban runoff. Subsurface gravel wetlands are an emerging type of green infrastructure that can be used to manage stormwater through the capture and slow release of runoff. These wetland systems are unique to other types of green infrastructure in that they have a distinct fully saturated gravel layer below an occasionally saturated soil layer. While there is substantial literature on the performance of different types of green infrastructure, such as bioretention, bioswales, and permeable pavements, there is a lack of …

Identifying Optimal Composite Resin Depth To Maximize Fracture Resistance When Restoring Immature Endodontically Treated Teeth, David Poe

Master's Theses (2009 -)

Introduction: This study compared stress distribution of an immature central incisor restored with intracanal composite resin placed at different depths. Methods: Five pre-accessed models were prepared, to simulate immature central incisors, and endodontically treated using a mineral trioxide aggregate plug and different amounts of composite resin with gutta-percha in between the composite resin and mineral trioxide aggregate. (Group 1) Composite resin restored from the cemento-enamel junction, (group 2) composite resin restored from 2 mm apical to the cemento-enamel junction, (group 3) composite resin restored from 4 mm apical to the cemento-enamel junction, (group 4) composite resin restored from the mineral …

Trade Secrecy And Innovation In Forensic Technology, Eli Siems, Katherine J. Strandburg, Nicholas Vincent

UC Law Journal

Trade secrecy is a major barrier to public scrutiny of probabilistic software tools that are increasingly used at all stages of the criminal system, from policing and investigation through trial and sentencing. Such tools allow prosecutors to leverage imperfect forensic evidence, such as DNA mixtures, smudged fingerprints, and grainy video footage. Probabilistic software tools unavoidably rely on potentially contestable assumptions, parameters, and implementation choices. Judicially recognized trade secrecy in criminal cases impedes scrutiny of these tools by defendants and the public. Previous critics have focused on secrecy’s potential to undermine the integrity and fairness of the criminal justice system, invoking …

Werwolf, Weswolfs, Wemwolf, Wenwolf: Gender, Morality, And Transformation In Annette Von Droste-Hülshoff’S “Der Loup Garou” (1860), Hasol Yu

University Honors Theses

Werewolves have long populated Western culture, forming a particularly close relationship with Germany through their impact on fairy tales, psychology, and literature, with works such as Steppenwolf (Hermann Hesse, 1927) and Der Wehrwolf (Hermann Löns, 1910) eventually becoming international bestsellers.

Less widely recognized, however, is Annette von Droste-Hülshoff's "Der Loup Garou" published in 1860 in the collection, Letzte Gaben. This nine-stanza poem depicts a tale of a savage beast with white fur and twisted eyes that is told to the mischievous children Pierrot and Caton in hopes that it keeps them pious and obedient on a cold night. At first …

Three-Dimensional Numerical Modeling Of Flow Hydrodynamics And Cohesive Sediment Transport In Enid Lake, Mississippi, Xiaobo Chao, A. K. M. Azad Hossain, Mohammad Z. Al-Hamdan, Yafei Jia, James V. Cizdziel

Faculty and Student Publications

Enid Lake is one of the largest reservoirs located in Yazoo River Basin, the largest basin in the state of Mississippi. The lake was impounded by Enid Dam on the Yocona River in Yalobusha County and covers an area of 30 square kilometers. It provides significant natural and recreational resources. The soils in this region are highly erodible, resulting in a large amount of fine-grained cohesive sediment discharged into the lake. In this study, a 3D numerical model was developed to simulate the free surface hydrodynamics and transportation of cohesive sediment with a median diameter of 0.0025 to 0.003 mm …

Parallel Resource Defined Fitness Sharing: A Study On Parallel Optimizations For Niching Algorithms, Blayne A. Rogers

Masters Theses

The exploitation of niches by genetic algorithms (GAs) is a computationally expensive, but effective, methodology for solving complex open problems and real-world applications. Niching, differentiated on the modality of sharing, casts problems in terms of the specific resources available. These concepts arise from the broader natural algorithms that encapsulate the ideas and theories used in artificial intelligence. In remediating the computational costs, a study on exploiting niche-defined parallel structures is performed in the contest of the resourcedefined fitness sharing (RFS) algorithm.

Sharing is a natural algorithm paradigm that emulates the use of resources within an environment or population. Defining these …

Investigation Of Oncogenic Ras And Endoplasmic Reticulum-Mitochondria Calcium Flux And Their Relationship In The Context Of Tumorigenesis, Emma Anderson

Senior Honors Theses

Intracellular calcium as a signaling molecule is a pervasive feature of cellular pathways, especially those that manage internal homeostasis and transitions through the cell cycle, so much so that regulated, responsive calcium flux between the endoplasmic reticulum (ER) and the mitochondria has been suggested to play a major role in cancer development. Another factor commonly implicated in tumorigenesis is RAS, an oncogene that controls signaling for many pathways that are also regulated by calcium. While both calcium and oncogenic RAS signaling are implicated in cancer development, possible links between them have yet to be determined. The identification of these links …

Faculty Open Educational Resources (Oer) Needs Assessment, Shayna Pekala

Foley Library Scholarship

No abstract provided.

...Of Cabbages And Kings, Spring 2022, Emeriti Society, University Of The Pacific

Emeriti Newsletter: "...Of Cabbages and Kings"

"...Of Cabbages and Kings" is the newsletter of the University of the Pacific Emeriti Society. Read more about the Emeriti Society of Pacific by clicking here.

Intentional Male Allies/Advocates: How Male Leaders Can Successfully Champion Female Ministers In The Assemblies Of God U.S.A., Saehee H. Duran

Doctor of Ministry (DMin)

While the Assemblies of God (AG) endorses women in ministry through its position paper and bylaws, a dichotomy has existed between its egalitarian theology and practice since its inception in 1914. One key to narrowing such a gap involves intentional and countercultural male leaders who actively train, empower, affirm, and mentor women called to ministerial leadership. This research defines biblical egalitarian leadership, identifies exemplary female leaders and their male champions in the Old and New Testaments, and explores the best practices of male allyship for female leaders through a literature review and a qualitative survey of active AG male allies …

1st Place Contest Entry: Designing Hollow Nanogels For Drug Delivery Applications, Mo Hijazi

Kevin and Tam Ross Undergraduate Research Prize

This is Mo Hijazi's submission for the 2022 Kevin and Tam Ross Undergraduate Research Prize, which won first place. It contains their essay on using library resources, their bibliography, and a summary of their research project on hollow-core nanogels.

Mo is a second-year student at Chapman University, majoring in Biological Sciences. Their faculty mentor is Dr. Molla Islam.

3rd Place Contest Entry: Legume-Rhizobium Symbiosis Phenotypes, Yoobeen Lee, Teresa Hur, Isaac Min, Sydni Au Hoy

Kevin and Tam Ross Undergraduate Research Prize

This is Yoobeen Lee, Teresa Hur, Isaac Min, and Sydni Au Hoy's submission for the 2022 Kevin and Tam Ross Undergraduate Research Prize, which won third place. It contains their essay on using library resources, their bibliography, and a summary of their research project on legume-rhizobium symbiosis phenotypes.

All four authors are fourth-year students at Chapman University. Yoobeen is majoring in Psychology, Teresa and Isaac are majoring in Health Sciences, and Syndi Au Hoy is majoring in Biological Sciences. Their faculty mentor is Dr. Kenjiro Quides.

Dismantling Binary Assumptions In Sex Estimation: Uplifting Trans And Gender Diverse Identities In Forensic Anthropology, Audrey Holbeck

Honors Program: Senior Projects (Public)

Forensic anthropology is a study within the field of physical anthropology that seeks to apply osteological expertise to legal and criminal situations. One of a forensic anthropologists’ most important jobs is to build a biological profile, consisting of age, biological sex, stature, and ancestry, in correspondence to an unidentified decedent. As we enter the third decade of the 21st century, instances of violence against trans and gender non-conforming individuals are unfortunately prominent, however, there has also been more awareness shed on trans activism. Trans individuals are at a higher risk of being victims of violent crime, and thus, forensic anthropologists …

Evaluation Of Protective Efficacy Of Viral Vector Based Swine Influenza Vaccine And A Method For B Cell Culture For Monoclonal Antibody Generation, Sushmita Kumari

School of Veterinary and Biomedical Sciences: Dissertations, Theses, and Student Research

Influenza A virus of the swine (IAV-S) is an economically important swine pathogen that has the potential to spread to humans, thus posing an ongoing public health concern due to its zoonotic potential. Hemagglutinin (HA), the most abundant viral envelope protein, is known to be the key protective antigen. Anti-HA antibodies alone, have been shown to prevent IAV infection. In this study we evaluated the feasibility of a recombinant tri segmented Pichinde virus (PICV) as a viral vector to deliver IAV-S hemagglutinin antigen in pigs. Four groups of weaned pigs (T01-04) were immunized twice with PBS, rPICV-GFP as a vector …

Diatom Response To Different Hydrologic Sources In Alpine Streams: A Teton Range Case Study, Shannon Weld

Water Resources Professional Project Reports

Alpine stream diversity is due in part to different hydrological sources including snowpack, surface glaciers, and rock glaciers; climate change threatens to homogenize these sources. Surprisingly little is understood about algal communities in these stream types. We characterized algal communities and water chemistry among ten alpine streams from these sources in the Teton Range, Wyoming, USA. Late summer sampling (2019-2021) included diatoms, anions, cations, and water quality parameters. Data were analyzed using one- and two-way analysis of variance, principal component analysis, and nonmetric multidimensional scaling. There were statistically significant differences among some or all hydrologic sources for temperature, dissolved oxygen, …

Donald Prothero, The Story Of Evolution In 25 Discoveries: The Evidence And The People Who Found It, Selmer Bringsjord

Faith and Philosophy: Journal of the Society of Christian Philosophers

No abstract provided.

Conservation And Variation In Agricultural Landscapes: A Survey Of Insect Populations Across Naranjilla Cultivation Methods In The Eastern Andean Cloud Forest, Ian Zakelj

Independent Study Project (ISP) Collection

This study compared insect biodiversity among five sites in agricultural landscapes and natural forest in the El Placer community in the valley of the Rio Pastaza in the eastern Andean cloud forest. The area is of vital importance to conservation, as it falls in the ecological corridor between the Sangay and Llanganates national parks. The primary crop produced by the residents of El Placer is naranjilla, and it is cultivated in a variety of manners, mostly with intensive chemical use. The goal of the study was to find out which types of practices were the least harmful to the insect …