Digital Commons Network^™

Racial Discrimination Increases The Risk For Nonremitting Posttraumatic Stress Disorder Symptoms In Traumatically Injured Black Individuals Living In The United States, Lucas Torres, Timothy J. Geier, Carissa W. Tomas, Claire M. Bird, Sydney Clare Timmer-Murillo, Christine L. Larson, Terri A. Deroon-Cassini

Psychology Faculty Research and Publications

Traumatic, life-threatening events are experienced commonly among the general U.S. population, yet Black individuals in the United States (i.e., Black Americans) exhibit higher prevalence rates of posttraumatic stress disorder (PTSD) and more severe symptoms than other populations. Although empirical research has noted a range of symptom patterns that follow traumatic injury, minimal work has examined the role of racial discrimination in relation to PTSD symptom trajectories. The current study assessed racial discrimination and PTSD symptom trajectories at 6 months postinjury across two separate samples of traumatically injured Black Americans (i.e. emergency department (ED)–discharged and hospitalized). Identified PTSD symptom trajectories largely …

Investigating The Bed Nucleus Of The Stria Terminalis As A Predictor Of Posttraumatic Stress Disorder In Black Americans And The Moderating Effects Of Racial Discrimination, Kevin Petranu, E. Kate Webb, Carissa W. Tomas, Farah Harb, Lucas Torres, Terri A. Deroon-Cassini, Christine L. Larson

Psychology Faculty Research and Publications

Altered functioning of the bed nucleus of the stria terminalis (BNST) may play a critical role in the etiology of posttraumatic stress disorder (PTSD). Chronic stressors such as racial discrimination and lifetime trauma are associated with an increased risk for PTSD, but it is unknown whether they influence the relationship between BNST functioning and PTSD. We investigated acute post-trauma BNST resting-state functional connectivity (rsFC) as a predictor of future PTSD symptoms in Black trauma survivors. We also examined whether racial discrimination and lifetime trauma moderated the relationship between BNST rsFC and PTSD symptoms. Black adults (N = 95; 54.7% female; …

Neurocognitive Functioning In Adults With Trichotillomania: Predictors Of Treatment Response And Symptom Severity In A Randomized Control Trial, Kathryn E. Barber, Douglas W. Woods, Thilo Deckersbach, Christopher C. Bauer, Scott N. Compton, Michael P. Twohig, Emily J. Ricketts, Jordan Robinson, Stephen M. Saunders, Martin E. Franklin

Psychology Faculty Research and Publications

Trichotillomania (TTM) is associated with impairments in response inhibition and cognitive flexibility, but it is unclear how such impairments relate to treatment outcome. The present study examined pre-treatment response inhibition and cognitive flexibility as predictors of treatment outcome, change in these domains from pre-to post-treatment, and associations with TTM severity. Participants were drawn from a randomized controlled trial comparing acceptance-enhanced behavior therapy (AEBT) to psychoeducation and supportive therapy (PST) for TTM. Adults completed assessments at pre-treatment (n = 88) and following 12 weeks of treatment (n = 68). Response inhibition and cognitive flexibility were assessed using the Stop …

Quantitative (68)Ga-Psma-11 Pet And Clinical Outcomes In Metastatic Castration-Resistant Prostate Cancer Following (177)Lu-Psma-617 (Vision Trial), Rohan Garje

All Publications

Background Lutetium 177 [177Lu]Lu-PSMA-617 (177Lu-PSMA-617) is a prostate-specific membrane antigen (PSMA)-targeted radioligand therapy for metastatic castration-resistant prostate cancer (mCRPC). Quantitative PSMA PET/CT analysis could provide information on 177Lu-PSMA-617 treatment benefits. Purpose To explore the association between quantitative baseline gallium 68 [68Ga]Ga-PSMA-11 (68Ga-PSMA-11) PET/CT parameters and treatment response and outcomes in the VISION trial. Materials and Methods This was an exploratory secondary analysis of the VISION trial. Eligible participants were randomized (June 2018 to October 2019) in a 2:1 ratio to 177Lu-PSMA-617 therapy (7.4 GBq every 6 weeks for up to six cycles) plus standard of care (SOC) or to SOC …

Feasibility And Efficacy Of Extravascular Implantable Cardioverter-Defibrillators In Two Patients With Class Iii Obesity., Omar Gutierrez, Matthew Cline, Anish K Amin

Heart and Vascular Articles

No abstract provided.

Consensus Statement On The Management Of Nonthrombotic Iliac Vein Lesions From The Viva Foundation, The American Venous Forum, And The American Vein And Lymphatic Society., Kush R Desai, Saher S Sabri, Steve Elias, Paul J Gagne, Mark J Garcia, Kathleen Gibson, Misaki M Kiguchi, Santhosh J Mathews, Erin H Murphy, Eric A Secemsky, Windsor Ting, Raghu Kolluri

Heart and Vascular Articles

A nonthrombotic iliac vein lesion is defined as the extrinsic compression of the iliac vein. Symptoms of lower extremity chronic venous insufficiency or pelvic venous disease can develop secondary to nonthrombotic iliac vein lesion. Anatomic compression has been observed in both symptomatic and asymptomatic patients. Causative factors that lead to symptomatic manifestations remain unclear. To provide guidance for providers treating patients with nonthrombotic iliac vein lesion, the VIVA Foundation convened a multidisciplinary group of leaders in venous disease management with representatives from the American Venous Forum and the American Vein and Lymphatic Society. Consensus statements regarding nonthrombotic iliac vein lesions …

Dual-Energy Lattice-Tip Ablation System For Persistent Atrial Fibrillation: A Randomized Trial., Elad Anter, Moussa Mansour, Devi G Nair, Dinesh Sharma, Tyler L Taigen, Petr Neuzil, Erich L Kiehl, Josef Kautzner, Jose Osorio, Stavros Mountantonakis, Andrea Natale, John D Hummel, Anish K Amin, Usman R Siddiqui, Doron Harlev, Paul Hultz, Shufeng Liu, Birce Onal, Khaldoun G Tarakji, Vivek Y Reddy

Heart and Vascular Articles

Clinical outcomes of catheter ablation for atrial fibrillation (AF) are suboptimal due, in part, to challenges in achieving durable lesions. Although focal point-by-point ablation allows for the creation of any required lesion set, this strategy necessitates the generation of contiguous lesions without gaps. A large-tip catheter, capable of creating wide-footprint ablation lesions, may increase ablation effectiveness and efficiency. In a randomized, single-blind, non-inferiority trial, 420 patients with persistent AF underwent ablation using a large-tip catheter with dual pulsed field and radiofrequency energies versus ablation using a conventional radiofrequency ablation system. The primary composite effectiveness endpoint was evaluated through 1 year …

A Survey Of Students’ Experiences Of Returning To Midwifery Studies After Maternity Leave: A Pilot Survey, Liz Mcneill, Elaine Jefford, Michelle Gray, Dianne Bloxsome, Terri Downer, Jessie Johnson-Cash, Lyn Ebert

Research outputs 2022 to 2026

Aim: To identify the barriers and facilitators having an impact on the progression and completion of studies for students who give birth during their midwifery program. Background: Balancing the demands of pregnancy and new motherhood with the rigorous academic requirements of a tertiary-level midwifery program is challenging for students wishing to progress and complete their studies. Understanding the barriers and facilitators students face when resuming midwifery studies following birth can assist universities in providing educational environments that support students in achieving their midwifery education. Design: Social media online Qualtrics survey with closed and open questions. Method: Participants were Australian midwifery …

Self-Chats From Large Language Models Make Small Emotional Support Chatbot Better, Zhonghua Zheng, Lizi Liao, Yang Deng, Libo Qin, Liqiang Nie

Research Collection School Of Computing and Information Systems

Large Language Models (LLMs) have shown strong generalization abilities to excel in various tasks, including emotion support conversations. However, deploying such LLMs like GPT-3 (175B parameters) is resource-intensive and challenging at scale. In this study, we utilize LLMs as “Counseling Teacher” to enhance smaller models’ emotion support response abilities, significantly reducing the necessity of scaling up model size. To this end, we first introduce an iterative expansion framework, aiming to prompt the large teacher model to curate an expansive emotion support dialogue dataset. This curated dataset, termed ExTES, encompasses a broad spectrum of scenarios and is crafted with meticulous strategies …

G2face: High-Fidelity Reversible Face Anonymization Via Generative And Geometric Priors, Haoxin Yang, Xuemiao Xu, Cheng Xu, Huaidong Zhang, Jing Qin, Yi Wang, Pheng-Ann Heng, Shengfeng He

Research Collection School Of Computing and Information Systems

Reversible face anonymization, unlike traditional face pixelization, seeks to replace sensitive identity information in facial images with synthesized alternatives, preserving privacy without sacrificing image clarity. Traditional methods, such as encoder-decoder networks, often result in significant loss of facial details due to their limited learning capacity. Additionally, relying on latent manipulation in pre-trained GANs can lead to changes in ID-irrelevant attributes, adversely affecting data utility due to GAN inversion inaccuracies. This paper introduces G 2 Face, which leverages both generative and geometric priors to enhance identity manipulation, achieving high-quality reversible face anonymization without compromising data utility. We utilize a 3D face …

New Geographies Of Crime? Cybercrime, Southern Criminology And Diversifying Research Agendas, Tim Hall, Richard Yarwood

School of Geography, Earth and Environmental Sciences

This paper argues that reconsidering the disciplinary significance of the geographies of crime is timely. It has three aims. First, it identifies recent developments in the geographical study of crime, arguing that they both challenge and extend its intellectual traditions. Second, using the example of cybercrime, it identifies new forms of crime that deserve scrutiny by geographers. Third, it draws on ideas of Southern criminology to identify how research agendas can be diversified to advance how geographers study crime. In doing so it proposes that geographers’ renewed interest in crime over recent decades is appropriately labelled ‘new geographies of crime’.

Digitally Connected, Evolutionarily Wired: An Evolutionary Mismatch Perspective On Digital Work, Mark Van Vugt, Stephen M. Colarelli, Norman P. Li

Research Collection School of Social Sciences

This paper makes the case for an evolutionary mismatch between digital work and the way human ancestors engaged in work. Psychological adaptations for producing things that early humans needed to survive and thrive, such as cognitive mechanisms for obtaining and processing food, toolmaking, and learning valuable working skills, evolved in the context of small networks of hunter–gatherers. These adaptations are central to understanding the significance of work in human evolution. Evolutionary mismatches operate when novel environments cue ancestral adaptations in ways that no longer provide adaptive benefits. We argue that digital work, although efficient and productive, is misaligned with some …

Exploring A Multimodal Fusion-Based Deep Learning Network For Detecting Facial Palsy, Heng Yim Nicole Oo, Min Hun Lee, J. H. Lim

Research Collection School Of Computing and Information Systems

Algorithmic detection of facial palsy offers the potential to improve current practices, which usually involve labor-intensive and subjective assessment by clinicians. In this paper, we present a multimodal fusion-based deep learning model that utilizes unstructured data (i.e. an image frame with facial line segments) and structured data (i.e. features of facial expressions) to detect facial palsy. We then contribute to a study to analyze the effect of different data modalities and the benefits of a multimodal fusion-based approach using videos of 21 facial palsy patients. Our experimental results show that among various data modalities (i.e. unstructured data - RGB images …

How Can Cbdcs Be Designed To Drive Financial Inclusion?, Heng Wang

Research Collection Yong Pung How School Of Law

As a new form of national currency, central bank digital currencies (CBDCs) hold the potential to be a transformative innovation that can enhance financial inclusion. However, the realization of this potential is very much contingent on their design. The realization of the benefit is also influenced by the barriers to financial inclusion that were identified in our first blog such as financial literacy, digital divide, and complexity.

How Can Malaysian Courts Consistently Perform Meaningful Constitutional Rights Review? Lessons From Past Cases And The Way Forward, Benjamin Joshua Ong

Research Collection Yong Pung How School Of Law

In the past, Malaysian courts performing constitutional rights review played a merely clerical role, applying a test that was trivially easy for legislation to pass. Then a more rigorous proportionality test took root. However, the Federal Court in the 2020 case of Letitia Bosman whittled the test down again, and the courts once more played a minimal role in checking state action. The reasons for this cannot be explained merely by diversity in judicial philosophy or political contextual factors. Rather, the near-demise of proportionality (and, with it, robust constitutional review) was made possible by a lack of a clear sense …

Bcla Clear Presbyopia: Epidemiology And Impact, M. Markoulli, T.R. Fricke, A. Arvind, K.D. Frick, Kerryn Hart, M.R. Joshi, H. Kandel, A. Filipe Macedo, D. Makrynioti, N. Retallic, N. Garcia-Porta, G. Shrestha, J.S. Wolffsohn

School of Health Professions

The global all-ages prevalence of epidemiologically-measured ‘functional’ presbyopia was estimated at 24.9% in 2015, affecting 1.8 billion people. This prevalence was projected to stabilise at 24.1% in 2030 due to increasing myopia, but to affect more people (2.1 billion) due to population dynamics. Factors affecting the prevalence of presbyopia include age, geographic location, urban versus rural location, sex, and, to a lesser extent, socioeconomic status, literacy and education, health literacy and inequality. Risk factors for early onset of presbyopia included environmental factors, nutrition, near demands, refractive error, accommodative dysfunction, medications, certain health conditions and sleep. Presbyopia was found to impact …

Im/Mobilities During The Covid-19 Pandemic: Perspectives From International Graduate Students Studying In The Southern United States, Christina W. Yao, Kaitlyn Hall, Simone Gause, Leslie Jo Shelton

Educational Sciences and Organizations

The background of this study is situated within the COVID-19 pandemic as an acute challenge with chronic issues that international graduate students have faced continuously. With the pandemic serving as a critical incident, we highlight the political, systemic, and personal fragilities of international graduate students studying in the southern United States. The methods for our study were informed by a narrative inquiry approach combined with a systematic literature review to connect with the conceptual framework of Avison and Turner’s chronic strains and Robertson’s conception of timescales. The findings highlight three broad themes: shifting immigration policies and travel uncertainty, institutional responses, …

Social Media Influencers: The Effects Of Information Richness And Follower Size On Purchase Intent, Tyishia S.N. Goldsberry

All Dissertations

This study investigated the dynamics of social media influence on marketing with a focus on two key variables, information richness and influencer follower count, to determine how these characteristics influenced customer purchase intents. In the search for more successful advertising strategies, current marketing trends have capitalized on social media influencers’ expanding role in determining customer behavior. In some cases, this has led to unethical behavior and subsequent mistrust, underlining the challenge of maintaining openness and ethical standard in digital marketing.

This quantitative study used surveys to investigate consumer experiences with various influencer content forms and follower counts. The research specifically …

What Are The Potential Drivers Of Nil Perception Among Student-Athletes?, Fred E. Washington

All Dissertations

This dissertation investigated the impact of the NCAA's Name, Image, and Likeness (NIL) policy on student-athletes' college choice. By synthesizing existing academic literature on NIL and college choice models, the study established a comprehensive theoretical framework. The research employed quantitative methods, gathering data through a survey to explore their perceptions and experiences with NIL. The analysis revealed that NIL significantly influenced college selection, with factors such as scholarship type, sport type, and geographic background of the athletes playing crucial roles. Interestingly, most respondents were aware of NIL policies before starting their college search. Demographic insights showed a slight female majority …

Implementation And Optimization Of A Secure, Scalable, And Robust Long-Range Low-Power Mesh Network For Enhanced Geo-Location Accuracy And Efficient Data Aggregation, Sheikh Tareq Ahmed

All Dissertations

The burgeoning realm of the Internet of Things (IoT) calls for advanced communication networks that can support an ever-increasing number of connected devices. Among these, Low Power Wide Area Networks (LPWANs), specifically LoRaWAN technology, have emerged as frontrunners due to their long-range, low-power capabilities, ideally suiting IoT's expansive nature. This dissertation presents a comprehensive study on enhancing LoRaWAN technology to overcome the existing limitations in geolocation accuracy and data aggregation efficiency. The work is set against the backdrop of the technology's vulnerability to signal attenuation in obstacle-rich environments and its challenges in scaling to accommodate dense networks without performance degradation. …

Enhancement Of Network Anomaly Detection Using Artificial Intelligence Techniques, Toya Acharya

All Dissertations

Traditional signature-based network intrusion detection systems, which capture network attributes, are inadequate against zero-day attack. The smaller number of attacks creates an imbalanced dataset, the major problem during anomaly detection. Machine Learning (ML) and Deep Learning (DL) approaches are promising for network anomaly detection because they can efficiently analyze big network traffic data for malicious activities and detect zero-day attacks. The appropriate selection of the ML/DL algorithm, hyperparameter tuning, and techniques, such as sampling methods, ensemble methods, and reduction of number of classes, can enhance the anomaly detection performance of the anomaly detection methods on an imbalanced network intrusion-based dataset. …

Sustainable Energy-Generating Pads As Future Alternative Energy Source For Road Infrastructure, Kazi Meharajul Kabir

All Dissertations

The world is experiencing a significant environmental crisis due to its dependence on fossil fuels for energy and transportation, which is leading to global warming and climate change. The global climate crisis demonstrates the urgent need to transition to renewable energy sources, making research on sustainable energy-generating systems increasingly important. PZT cells present an alternative energy-generating source but face challenges such as brittleness, low-frequency operation, and high-temperature sensitivity, which cause performance degradation. Additionally, issues like impedance matching and fluctuations in PZT-based energy systems contribute to significant energy generation losses. Research into composite materials, design optimizations, temperature-stabilized materials, fabrication techniques, and …

The Impact Of District Policy On The Efficacious Implementation Of Texas House Bill 5, Marlene Studivant- Moore

All Dissertations

Preparing students to contribute to society is essential for every high school in the nation. Texas House Bill 5 (House Bill 5, 2013) sought to create a framework for achieving college and career readiness for Texas public schools. Counselors were the frontline mentors who had essential roles in implementing House Bill 5. However, the performance of graduation and curricular changes mandated by House Bill 5 increased the responsibilities of counselors and challenged how the policy implementation affected students' college and career readiness. Numerous challenges and issues emerged within the school districts executing House Bill 5.

The success of House Bill …

Association Between Lifestyle Behaviors And Type 2 Diabetes Among African Immigrants In The United States, Momo Joemah Johnson

Walden Dissertations and Doctoral Studies

Recent evidence demonstrates that African immigrants are healthier than African immigrants born in the United States. After individuals have stayed in the United States for a duration of 4–5 years, the health gap starts to narrow significantly as health conditions worsen. Acculturation and body mass likely play a role; physical inactivity and psychological distress may arbitrate the association. T2DM is an expanding global health problem that is closely linked to the epidemic of obesity. Individuals with T2DM are at risk of other complications that include retinopathy, nephropathy, neuropathy, and microvascular complications. The purpose of the study was to assess the …

Residential Street Trees And Cardiovascular Disease Among Urban-Dwelling Mexican Adults, Christine Campbell

Walden Dissertations and Doctoral Studies

Cardiovascular diseases (CVDs) are a significant public health burden in Mexico despite national efforts to address traditional risk factors. With growing evidence that elements of nature can improve physical and mental health of people living in cities, this quantitative epidemiological study of secondary data examined the relationship between the presence of street trees in Mexican metropolitan areas and self-reported CVD in adults over age 40. The integrated socio-environmental model of health and well-being provided the conceptual framework for the study. A secondary data analysis was performed using combined individual health data from Mexico’s 2012 National Health and Nutrition Survey and …

A Multiagency Approach To Animal Hoarding In Central Iowa, Gary W. Rasmussen

Walden Dissertations and Doctoral Studies

This research explored animal hoarding in Iowa using the qualitative method with the resource dependency theory and a case study approach. These cases were studied using multiple sources of information, from media reports in initial locating cases to court documents, to examine the results of each case. It examined how different sized law enforcement agencies’ investigations into these cases impacted the outcomes of the cases in sentencing and the use of mental health evaluations and treatments. It also explored the efficacy of how different sized law enforcement agencies investigated animal hoarding cases. The law enforcement agencies were divided into two …

Human Rights Violations Against Legal Immigrants In Minnesota, John Ewu

Walden Dissertations and Doctoral Studies

Despite legal entitlements to protections under the International Bill of Human Rights, legal immigrants in Minnesota face human rights violations, including discrimination, harassment, and denial of essential services. These violations hinder their well-being, social integration, and economic stability, exacerbate existing disparities, and their ability to provide for their families and secure legal representation. The purpose of this study was to provide information that could be used in considering policy reforms to improve the treatment of immigrants in Minnesota. This was achieved by exploring how Mexican, Somali, and Hmong legal immigrants experienced human rights violations in Minnesota as a vulnerable population …

Law Enforcement Attitudes, Decisions, And Behaviors In Encounters With The Mentally Ill, Melissa L. Griffin

Walden Dissertations and Doctoral Studies

Law enforcement officers frequently encounter challenges when interacting with mentally ill individuals, often resulting in negative outcomes. In this generic qualitative study, the attitudes, decision making process, and behaviors of law enforcement officers in such interactions were investigated, with a focus on identifying facilitators and barriers to peaceful interactions. Additionally, the goal was to explore how police officer training could be improved to enhance outcomes in dealing with mentally ill individuals. Using a generic qualitative approach, data was collected through in-depth individual interviews and analysis of relevant documents from police forces. Participants, selected through snowball sampling from Police Departments, shared …

Scotland In The Forefront Of Property Law Reforms In The Uk: Potential Implications For The Scottish People, Goodtime Okara

School of Law, Humanities and Social Sciences

The Scottish Government has taken steps to revolutionise its body of law on ‘trust and succession’ and housing. The recent Trusts and Succession (Scotland) Act 2024 has severally impacted the issues of appointment and removal of trustees, fiduciary duties of trustees, rights of beneficiaries, and Environmental, Social, and Governance (ESG) investments in Scotland; while the proposed new Housing (Scotland) Bill 2024 has the proclivity of influencing rent, rent control areas, eviction and homelessness in Scotland. Accordingly, this paper focuses on exploring the potential impacts of these legislative reforms on the lives of the Scottish people. Do they ‘make’ or ‘mar’ …

Remembering, Forgetting, And Artifact Deposition In Late Prehistoric Florida, Andrew Bowen

Master's Theses

Material culture plays a fundamental role in memory processes. Artifacts are an important means of both connecting with and cutting ties with a real or imagined past. They can be reminders or symbols of connection to other people, places, things, powers, or memories, making them key components within networks and relations. The way materials are deposited or destroyed often follows specific customs or responds to environmental factors. Specific situations, like interactions with outside groups or socio-political changes, prompt particular depositional events. During the Mississippi period, such circumstances were prevalent throughout the Southeast. By treating artifacts in specific ways during deposition, …