Digital Commons Network^™

Development Of Tissue Engineered Scaffolds For Cardiovascular Repair And Replacement In Pediatric Patients, Dipasha Sinha

All Dissertations

Congenital Heart Diseases (CHD) are abnormalities present in the heart and great vessels at birth. It is one of the most frequently diagnosed congenital disorders, affecting approximately 40,000 live birth each year in the United States. The incidence of new CHD patients and the relative distribution of defects have not changed over time and remain a birth rate function. Out of the new patients found to have CHD each year, an estimated 2,500 patients have a defect that requires a substitute, non-native valve, or conduit artery to replace structures that are congenitally absent or hypoplastic. Materials in current use for …

Development Of Solution Blow Spun Nanofibers As Electrical And Whole Cell Biosensing Interfaces, Craig Levar Miller

All Dissertations

Infectious pathogens place a huge burden on the US economy with more than $120 billion spent annually for direct and indirect costs for the treatment of infectious diseases. Rapid detection schemes continue to evolve in order to meet the demand of early diagnosis. In chronic wound infections, bacterial load is capable of impeding the healing process. Additionally, bacterial virulence production works coherently with bacterial load to produce toxins and molecules that prolongs the healing cycle. This work examines the use of nonwoven polymeric conductive and non-conductive nanofiber mats as synthetic biosensor scaffolds, drug delivery and biosensor interface constructs. A custom-made …

Where To Start? A Tool For Thinking About The Sdgs And Community Foundation Work, Katie Leone, Tessa Lesage

The Foundation Review

The merits of advancing the United Nations Sustainable Development Goals are widely agreed upon by the global community, but designing and applying strategies to do so at the local level can be challenging. This article aims to support community foundations in moving the 2030 Agenda for Sustainable Development forward in practical ways by exploring the use of a point-of-entry wheel to create a shared language that can help community foundations align their local efforts with the global goals.

Since 2012, Collaboratory has been exploring the potential for integrating sustainability — encompassing economic, social, and environmental pillars — as a strategic …

Data Hiding By Unsupervised Machine Learning Using Clustering K-Mean Technique, Hiba Hamdi, Maisa'a Abid Ali

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Steganography includes hiding text, image, or any sentient information inside another image, video, or audio. It aims to increase individuals’ use of social media, the internet and web networks to securely transmit information between sender and receiver and an attacker will not be able to detect its information. The current article deals with steganography that can be used as machine learning method, it suggests a new method to hide data by using unsupervised machine learning (clustering k-mean algorithm). This system uses hidden data into the cover image, it consists of three steps: the first step divides the cover image into …

3d Textured Model Encryption Using 2d Logistic And 3d Lorenz Chaotic Map, Nashwan Alsalam, Abdul Monem S., Shaimaa H. Shaker

Iraqi Journal of Computers, Communications, Control and Systems Engineering

The widespread of recent multimedia, including various 3D model applications in different domains of areas, may lead to 3D models being stolen and attacked by hackers. Moreover, 3D models must be protected from unauthorized users and when transmitting over the internet. Nowadays the 3D model protection is a very important Issue. This paper proposed a scheme that provides high protection for the textured 3D model by implementing multiple levels of security. The first level of security is achieved by encrypting the texture map based on a key generated by a 2D Logistic chaotic map. The second level of security is …

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The Foundation Review

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Localizing The 2030 Agenda With Community Data: Lessons From The Community Foundations Of Canada’S Vital Signs Program, Beth Timmers, Alison Sidney

The Foundation Review

Drawing on case studies in Canada, this article analyzes the critical role that community indicators can play in philanthropy’s ability to localize the United Nations 2030 Agenda for Sustainable Development and the associated Sustainable Development Goals to address complex societal and environmental challenges.

Measurement is an integral component of Agenda 2030, and communities are increasingly using indicators to align their plans, inform granting decisions, and track equity and sustainability outcomes. Canada’s most extensive community-driven indicator program, Vital Signs, uses different types of data to measure the vitality of a community and support action toward improving collective quality of life; and …

A Case Study On The Use Of The Sdgs With A Collective Impact Initiative In Southwest Florida, Tessa Lesage, Aysegul Timur, Dakota Pawlicki

The Foundation Review

The United Nations Sustainable Development Goals can be a useful framework on which to design, evaluate, and communicate collective impact initiatives. Using as a case study the FutureMakers Coalition, a collective impact initiative launched by the Southwest Florida Community Foundation to transform its region’s workforce, the field can gain insights into how the goals can strengthen collective impact work locally and nationally.

This article will discuss how the foundation facilitated the setting of a common agenda and the use of the Sustainable Development Goals to help build consensus among 251 active partners on how to measure progress toward the coalition’s …

School Nursing Practice And Experiences During School Closures, Susie E. Birden Brown

Electronic Theses and Dissertations

This evidence-based quality improvement project was to evaluate public school nurses’ relationships and reaction to their new work environment during the closure of schools in Northern California resulting from the COVID-19 pandemic. This project addressed the change in school nursing, especially the nurses’ working environment. A stress management program was offered to the school nurses as an intervention to give them information on perceived stress. The stress management program included mindfulness and stress-relieving techniques over a 1-month period. The research methodology used in the project was a pre- and postintervention using the Perceived Stress Scale-10 (PSS) to measure if the …

The Efficacy Of A Rapid Rehousing Program Serving Adults Experiencing Homelessness In West Central Texas, Unique Jackson

Electronic Theses and Dissertations

This thesis discusses the dynamics of homelessness and examines one agency (Abilene Hope Haven) that aims to help homeless individuals receive permanent housing. This study explores the characteristics that influence the likelihood of placement in permanent housing within 12 months at Abilene Hope Haven. The different types of supportive housing programs and their roles in helping homeless individuals will be discussed. Secondary data gathered from the Homeless Management Information System were entered into the Statistical Package for Social Sciences, and then a logistical regression analysis was created to explain the relationships between the different characteristics and permanency placement. A key …

An Examination Of Police Perceptions And Attitudes Toward Juveniles In Texas, Yunus Celik

All Dissertations

The purpose of this study was to examine police officers’ perceptions (opinions) and attitudes when interacting with juveniles given the officers’ individual demographics and organizational/departmental characteristics. Also, this study examined the officers’ reported demographics of the juveniles with whom they interacted to understand any possible influence on the interactions. This quantitative study involved officers completing a survey consisting of 42 questions divided into four sections that included: (1) demographics, (2) organization, (3) interaction with juveniles, and (4) police perceptions and attitudes. The organizational section addressed two sub-categories—cynicism and isolation. The 125 police officers in this study were solicited from 16 …

Unmet Needs In Adolescents And Young Adults With Cancer: A Mixed-Method Study Using Social Media, Eunju Choi

Sigma Foundation for Nursing Research Grant Reports

The purpose of this study is to identify and compare the unmet needs of adolescents and young adults (AYAs) with cancer by age and gender.

Ultrafast Magnetic Entropy Dynamics With Time-Resolved Pump-Probe Magneto-Optical Technique., Sahar Goharshenasanesfahani

Electronic Theses and Dissertations

It has been observed that ultrathin films, multilayers, or magnetic nanostructures indicate novel magnetic phenomena that differ profoundly from the respective bulk properties. Besides, because of the broad applications of these magnetic materials in the industry, they are an exciting research area. Hence, investigating the low-dimensional magnetic systems is one of the most active fields in experimental condensed matter physics. Magnetization dynamics can occur over a wide range of time scales (from seconds to femtoseconds). Some of these processes even occur on time scales as short as a few picoseconds (10^-12s) or femtoseconds (10^-15s). Measurement of …

An Analysis Of Taste Neuron Morphological Variability: Influences Of Neuron Type And Plasticity., Lisa Christina Ohman

Electronic Theses and Dissertations

Taste neurons are functionally and molecularly diverse, but their morphological diversity was, until recently, completely unexplored. Taste neurons were considered relay cells, communicating information from taste-transducing cells to the brain without variation in morphology. Instead, individual taste neurons are tremendously morphologically variable. To determine how differences in branching relate to the number and types of taste-transducing cells providing neuronal input, I combined sparse cell genetic labeling with a whole-mount immunohistochemistry and analysis workflow. I found that the maximum number of taste-transducing cells capable of providing convergent input onto individual gustatory neurons varied with a range of 1-22 taste-transducing cells. Consistently, …

Local Feature Selection For Multiple Instance Learning With Applications., Aliasghar Shahrjooihaghighi

Electronic Theses and Dissertations

Feature selection is a data processing approach that has been successfully and effectively used in developing machine learning algorithms for various applications. It has been proven to effectively reduce the dimensionality of the data and increase the accuracy and interpretability of machine learning algorithms. Conventional feature selection algorithms assume that there is an optimal global subset of features for the whole sample space. Thus, only one global subset of relevant features is learned. An alternative approach is based on the concept of Local Feature Selection (LFS), where each training sample can have its own subset of relevant features. Multiple Instance …

"If Fear Wasn't Enough?!": African American Perceptions Of Policing After Breonna Taylor's Unprovoked Death., Moriah Antoinette Bellamy

Electronic Theses and Dissertations

This study investigates how African Americans perceive the racialization process in the criminal justice system following the death of Breonna Taylor. Focusing primarily on police-community relations in Louisville, KY, I find the Breonna Taylor case amplifies preconceived perceptions of race between civilian and non-civilian groups. To test the hypothesis that racialization in the criminal justice system has caused damaging effects on relations between African Americans and police, two virtual focus groups were designed to discuss participants’ experiences with law enforcement. My findings suggest that the racialization process in the criminal justice system negatively skewed African American civilians’ attitudes towards law …

Theoretical Investigation Of The Co-C Bond Activation In Methylcobalamin And Adenosylcobalamin-Dependent Systems: Mechanistic Insights., Arghya Pratim Ghosh

Electronic Theses and Dissertations

The vitamin B₁₂ derivates, otherwise known as cobalamin (Cbl), are ubiquitous organometallic cofactors. The biologically active forms of Cbl, such as methylcobalamin (MeCbl) and adenosylcobalamin (AdoCbl), act as cofactors in different physiological reactions for both prokaryotes and eukaryotes. A crucial aspect of the Cbl-mediated systems is the activation of the organometallic Co-C bond that plays a critical role in its catalytic activity. One of the most remarkable features of this Co-C bond is its unusual activation in AdoCbl-dependent enzymatic reactions, where a trillion-fold rate acceleration of the Co-C bond cleavage is observed inside the enzyme compared to the isolated …

Black Codes Re-Envisioned: The Dred Scott Majority Opinion As An Antiblack Performative Speech Act., Tiffany Dillard-Knox

Electronic Theses and Dissertations

This dissertation is a discursive analysis of the decision in the Dred Scott v Sandford, 1857 case written by Chief Justice Roger Taney. It begins with an overview of the literature on performative speech acts, focusing on the aspects of performatives that relate to Louis Miron and Jonathan Xavier Inda’s thesis that race is a performative speech act. Breaking from their use of race as the analytic, this analysis is situated within a black/nonblack paradigm. This provides a framework that focuses on the unique ways in which the discourse of the text enacts, accumulates and renders blackness fungible. The …

Genetic Diversity, Structure, And Selective Sweeps In Spinacia Turkestanica Associated With The Domestication Of Cultivated Spinach, Sanjaya Gyawali, Gehendra Bhattarai, Ainong Shi, Chris Kik, Lindsey J. Du Toit

Horticulture Faculty Publications and Presentations

Genotype-by-sequencing (GBS) was used to explore the genetic diversity and structure of Spinacia turkestanica, and the selective sweeps involved in domestication of cultivated spinach, S. oleracea, from S. turkestanica. A total 7,065 single nucleotide polymorphisms (SNPs) generated for 16 Spinacia oleracea and 76 S. turkestanica accessions placed the S. oleracea accessions in one group, Q1, and the 76 S. turkestanica accessions, which originated from Central Asia, in two distinct groups, Q2 and Q3. The Q2 group shared greater genetic identity with the S. oleracea accessions, Q1, than the Q3 S. turkestanica …

Queering The Metanarrative Of Domesticity: Chosen Families In Late Nineteenth- Century American Women's Literature, Sharla Rosenbaum

Graduate Theses and Dissertations

My primary purpose in this project is to dispel the notion that the white, bourgeois, patriarchal, nuclear family believed by millions of US citizens to have once monopolized the United States’s cultural landscape through an examination of how women authors in the United States constructed families in literature immediately following the Civil War. Not only do the novels under examination reflect diverse representations of families, but they also reflect those images from diverse perspectives. I will use a Marxist lens to explore class and ideologic interpellation; a renegade global feminist lens to explore failure and differential consciousness; a queer and …

The Philosophy Of Outliers: Reintegrating Rare Events Into Biological Science, Chelsea N. Cook, Angela R. Freeman, James C. Liao, Lisa A. Mangiamele

Biological Sciences Faculty Research and Publications

Individual variation in morphology, physiology, and behavior has been a topic of great interest in the biological sciences. While scientists realize the importance of understanding diversity in individual phenotypes, historically the “minority” results (I.e., outlier observations or rare events) of any given experiment have been dismissed from further analysis. We need to reframe how we view “outliers” to improve our understanding of biology. These rare events are often treated as problematic or spurious, when they can be real rare events or individuals driving evolution in a population. It is our perspective that to understand what outliers can tell us in …

Listening To Voices Of Latinx Immigrants In Rural America, Jacqueline Smith

Graduate Theses and Dissertations

The purpose of this phenomenological qualitative study was to capture and gain an understanding of Latinx immigrants’ lived experiences during their transitions from their native countries to rural Arkansas. Using purposeful criterion-based sampling, the population of interest was five Latinx immigrant students and families who migrated from their native countries to the state of Arkansas. The analytic strategy included a single-case model of each family’s transcription, two-case model, cluster analysis to identify likeness, document portrait, and subtheme development. The structural descriptions that formed the essence of the experience resulted in three themes: education, migration, and emotional experiences. The three overall …

Evaluation Of Two Neonatal Challenge Models For Broiler Chickens And Their Effects On Early Performance Parameters, Callie Selby

Graduate Theses and Dissertations

Formaldehyde fumigation in poultry hatch cabinets has been utilized for sanitation of hatching eggs for over a century. Formaldehyde is utilized to minimize pathogenic microbes on the surface of the egg as well as the microbial bloom during the hatching process. While formaldehyde is effective, its use is regulated in the United States and Europe due to its carcinogenic nature. Formaldehyde has been shown to damage the cuticle of the egg, cause embryonic death, and damage the epithelial lining of the respiratory tract of freshly hatched chicks, predisposing them for respiratory infection. Alternatives for formaldehyde fumigation must be identified and …

Screening For Our Fathers: Representations Of Native American Masculinity In American Film, Jeromy Duane Miller

Graduate Theses and Dissertations

In this work, I examine representation of Native American masculinity in the American film industry. The American film industry began just over a century ago, and one of its earliest subjects was the Native American. Throughout its history, the American film industry has maintained a steady trajectory of exploitation and erasure of Native American men and their subsequent masculine qualities. While there are notable historical outliers and critical exceptions in the 21st century, Native American men in film have been continually reduced to corpses, devoid of significant social presence, and denied meaningful explorations of their sexuality and interpersonal identity. The …

Dissonance Between Christian Beliefs And Eating Habits In The South, Karli Dianne Stringer

Graduate Theses and Dissertations

The purpose of this qualitative study was to initiate understanding of how obesity in the South is still so prevalent even though the majority of inhabitants subscribe to a faith that discourages unhealthy lifestyles. Furthermore, the information presented in this research sought to fill the knowledge gap for communicators and educators concerning the dissonance between Christianity in the South and the unhealthy eating habits of Southerners. Grounded in the Cognitive Dissonance Theory, this study comprised of a semi-structured interview route in which Protestant evangelical Christians in the South (N = 11) participated in a descriptive study conducted by a committee …

How Bad Do You Want It?: The Personal Motivation Of Joining A Sorority, Garry Butler

Graduate Theses and Dissertations

College campuses provide students with endless opportunities to become members of various student organizations that provide leadership, accountability, a sense of belonging, personal growth, and development. Many colleges have provided students with the opportunities to join social Greek fraternity and sorority organizations. The foundation of social fraternity and sorority organizations are built on principles such as sisterhood, brotherhood, scholarship, service, philanthropy, and leadership. Many traditional college-age women who desire to become members of a social sorority organization all participate in a formal recruitment process. There are various motivations that traditional college-age women have for joining social sororities on college campuses …

Investigation Of Iron-Nickel Films Based Catalysts: Controlling Hydrogen Evolution Reaction (Her) Through An Electrode-Electrolyte Engineering Approach, Sergio Ivan Perez Bakovic

Graduate Theses and Dissertations

Electrochemical energy conversion technologies need to be economically viable in order to be adopted. Earth-abundant transition metals (i.e., Fe, Co, and Ni) have attracted attention due to their high availability, low cost, and catalytic characteristics that are in many cases found in and exploited by nature. Herein, we synthesize FexNi100-xOy electrocatalyst films and study how the electrocatalyst-electrolyte interactions alter the hydrogen evolution reaction (HER).In this work, FexNi100-xOy films were synthesized to study the composition, chemical state, and morphology. Characterization results provided a well-established electrocatalyst film platform to then proceed with electrochemical evaluations. The effects of the electrode composition and electrochemically …

Dysregulation Of Mir-21-Associated Mirna Regulatory Networks By Chronic Ethanol Consumption Impairs Liver Regeneration., Austin Parrish, Ankita Srivastava, Egle Juskeviciute, Jan B Hoek, Rajanikanth Vadigepalli

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Impaired liver regeneration has been considered as a hallmark of progression of alcohol-associated liver disease. Our previous studies demonstrated that in vivo inhibition of the microRNA (miRNA) miR21 can restore regenerative capacity of the liver in chronic ethanol-fed animals. The present study focuses on the role of microRNA regulatory networks that are likely to mediate the miR-21 action. Rats were chronically fed an ethanol-enriched diet along with pair-fed control animals and treated with AM21 (anti-miR-21), a locked nucleic acid antisense to miR-21. Partial hepatectomy (PHx) was performed and miRNA expression profiling over the course of liver regeneration was assessed. Our …

Proof Positive: Applications Of Chemical Analysis Techniques In Art Forgery Detection, Joseph Fryc

Museum Studies Theses

In response to the subjective nature of older forgery detection techniques, modern forgery detection methods rely heavily on chemical analysis of the materials utilized in a given piece of work in order to make authenticity determinations. Chemical methods of detection at their core provide an objective determination of facts regarding the composition of materials utilized in contested pieces and provide a relative date of production for those materials. In this way, chemical analysis helps service the field of modern forgery detection as a direct compliment to traditional stylistic analysis, by providing extra data on the piece that can often be …

Creating The Experience: Engaging Millennials In Museums With A Focus On Jewish Millennials And Museums, Sarah G. Drozda

Museum Studies Theses

In this research, I explore two main ideas: The relationship that millennials have with museums and what programming excites them into coming back to the museum. To do this, I did a background review of the motivations and passions of the millennial generation, as well as various programming that have engaged millennials in museums. As someone who is a millennial and passionate about Jewish museums and Jewish engagement, I focused my research on how museums can help to bring Jewish millennials closer to their heritage, culture, and Jewish identity. A good segment of Jewish millennials is not drawn to traditional …