Digital Commons Network^™

Metabolic Consequences Of Sleep Disorders: A Comprehensive Analysis Of Their Role In Diabetes, Victoria S. Parma

Journal of the South Carolina Academy of Science

The prevalence of type 2 diabetes continues to grow globally, and more strategies are needed to combat this public health problem. Considering the link between sleep problems and risk of type 2 diabetes, the objective of this review is to discuss the experimental and epidemiological evidence underlying the link between sleep disturbances (such as insomnia, circadian rhythm disorders, and obstructive sleep apnea), and the development of insulin resistance and glucose intolerance, which are impairments that can eventually result in type 2 diabetes. In order to explore this, PubMed and Google Scholar were utilized to find pertinent peer-reviewed publications, reviews, and …

Effects Of Mating System And Adaptedness On The Evolution Of Fitness And Mtdna Copy Number In Mitonuclear Mismatched C. Elegans, Zachary P. Dietz, Devshuvam Banerji, Jennifer A. Sullins, Brent W. Bever, Stephen F. Christy, Ulfar Bergthorsson, Vaishali Katju, Suzanne Estes

Biology Faculty Publications and Presentations

Metabolic functioning in nearly all eukaryotes relies on molecular machinery dual-encoded by mitochondrial DNA (mtDNA) and nuclear DNA (nDNA) genomes. The two genomes have sustained an extraordinary degree of cooperation across evolutionary time, preserving the capacity for indispensable processes including oxidative phosphorylation and ATP production, which in turn influence many fitness-related traits. How this cooperation is maintained when one member of the pair is debilitated by deleterious mutation is poorly understood, as is the influence of mutation location (mtDNA or nDNA), mating system, or the potentially compensatory effects of mtDNA copy number changes on the process. We asked whether and …

Analysis Of A Saline Dust Storm From The Aralkum Desert – Part 2: Atmospheric Flow Precursors In The Euro-Atlantic Region, Xin Xi

Michigan Tech Publications

Wind-blown dust emissions from the man-made Aralkum Desert pose significant environment and human health risks across Central Asia. Yet, little is known about the atmospheric circulation patterns favoring dust outbreaks from the region. This study examines the role of upstream atmospheric blocking and recurrent transient Rossby wave packets (RWPs) in initiating a severe dust storm from the Aralkum Desert in May 2018. Results show that the dust event was triggered by an unusual early-summer cold air outbreak and attendant postfrontal northerly winds reaching 24–31 m/s. The compound cold air and dust outbreaks were preceded by repeated meridional flow amplification linked …

High Spatial Resolution Crop Type And Land Use Land Cover Classification Without Labels: A Framework Using Multi-Temporal Planetscope Images And Variational Bayesian Gaussian Mixture Model, Minh Tri Le

Mathematics, Physics, and Computer Science Faculty Articles and Research

Previous studies often combined high spatial resolution data (e.g., PlanetScope) with wider spectral range data (e.g., Sentinel-2) and relied on supervised classification methods to produce land use and land cover (LULC) maps. This study proposed a new unsupervised framework to generate crop type and LULC maps at high spatial resolution (< 5 m) using available PlanetScope data solely without requiring ground truths. We used PlanetScope surface reflectance images and their derived spectral indices during growing seasons to create multi-temporal input features, which were fed into an unsupervised Variational Bayesian Gaussian Mixture Model (VBGMM). The VBGMM, unlike the traditional unsupervised classification methods, (1) first estimated optimal parameters that are most suitable based on the input features and then (2) assigned pixels to the cluster with maximum posteriori probability of a mixture of several Gaussian distributions. The crop type and LULC maps were then generated by labeling the derived clusters using the best possible assignment method, referring to the existing crop type or LULC products. We evaluated the produced PlanetScope-based crop type and LULC maps using true labels, corresponding reference maps, and other unsupervised classification methods. The results demonstrated the robustness and effectiveness of the proposed framework in mapping crop types and LULC at 3–5 m pixels across various ecosystems, climate zones, and human-managed landscapes. The spatial patterns of PlanetScope-based maps were (1) highly comparable with all the reference datasets at 10–30 m spatial resolution and (2) better than the traditional GMM and K-means clustering methods. The VBGMM produced classification maps with high confidence, yielding class probabilities above 0.9 for over 90 % of all study areas. The area percentage for all crop type and LULC classes agreed well with their reference maps, with R2 of 0.95 and RMSE of 1.04 %. The confusion matrices using true labels indicated that PlanetScope-based maps achieved a higher overall accuracy of 84 % than the supervised referenced maps of 81 %. Besides, the entropy comparison showed that our framework-based maps were better at capturing fine-scale features such as developed areas within cities that commonly mix with open space and vegetation, deforestation and cropland conversion in South America, smallholder croplands in Africa and Asia, and generating homogeneous crop fields in North America. This study further highlighted the potential for future research to implement our proposed framework to generate timely and extensive annotated datasets, which can be used for operationally training machine learning models to map crop types and LULC, track deforestation, detect wildfires, and delineate flooded areas at larger scales using medium/coarse Earth observations.

Factors Influencing Information And Accessibility Of Tuberculosis Prevention Services Among Nomadic Fulani And Host Communities, Nigeria, Abolaji Azeez, Kabiru Salami

Journal of Social, Behavioral, and Health Sciences

Despite efforts to curtail tuberculosis (TB) in Nigeria, the country has not yet attained the global target. This study explored the dynamics of access to information about TB control and prevention among nomadic Fulani and their host communities. We used a mixed-methods approach and multistage sampling technique to recruit 812 respondents for the survey, and we conducted 18 in-depth interviews across six local government areas. The results indicated generally low access to TB information and services, with only 2% of nomadic Fulani engaging in TB prevention activities compared to 6.7% of host community members. Yoruba respondents had significantly higher odds …

A Novel Microdosimetry-Based Formalism For Cell Survival Modelling Applicable To Hypofractionated Radiotherapy, Oleg N Vassiliev, Radhe Mohan

Faculty, Staff and Student Publications

Objectives

Hypofractionated radiotherapy requires reliable cell survival models for doses much higher than the standard 2 Gy, for which the linear-quadratic (LQ) model is not applicable. We developed an alternative approach applicable to both low doses and high doses used in hypofractionated treatments and radiobiological experiments.

Approach.

We combined a standard microdosimetric technique with a recently introduced non-LQ cell survival model. Our formulation accounts for cell damage by multi-track events involving any number of particles. This is necessary for modelling cell survival at therapeutic doses. We characterise each cell type by the size �� of the sensitive volume (SV) and …

Do Mergers Drive Smbh-Galaxy Coevolution? Comparison Of Feeding And Feedback In Single And Dual Agn, Mason Ruby

Electronic Theses and Dissertations Archive

While super massive black holes (SMBHs) are known to exist at the center of all massive galaxies, we have yet to understand the processes by which gas flows from kpc scales to within pcs of the SMBH, thereby accreting and triggering an active galactic nucleus (AGN). Additionally, while AGN-driven feedback in the form of kpc-scale winds and jets is induced to explain the observed excess quenching of star-formation, the mechanisms of AGN-driven feedback and its relevance compared to star-formation-driven feedback are not well understood. AGN feeding and feedback are instrumental to SMBH-galaxy coevolution, and determining the processes involved is imperative …

Urban Landscape Recovery And Lulc Analysis: A Deep Learning Approach To Post-Extreme Rainfall Impacts In Dubai, Xin Hong

All Works

From April 14 to 18, 2024, the United Arab Emirates (UAE) experienced its heaviest rainfall in 75 years, resulting in widespread flooding across multiple emirates, including Dubai. This study utilizes high-resolution PlanetScope imagery and a U-Net deep learning model to assess the flood impact and analyze post-rainfall recovery patterns in Dubai’s urban landscape. By integrating Sentinel-2derived land use and land cover (LULC) data to refine the training dataset, a high-accuracy U-Net model was developed through transfer learning that effectively classified pre- and post-rainfall LULC. Post-rainfall LULC change detections indicate that 23.8 km² of land was flooded, which is equivalent …

Representing Foreign Husbands: A Comparative Study Of Narrative Styles In My Neighbor, Charles, Fadhila Hasby

International Review of Humanities Studies

This study investigates the representation of foreign husbands in South Korean television by analyzing the reality TV show *My Neighbor, Charles*, which features intermarried couples of Korean women and foreign men. It examines the narrative patterns associated with white and non-white foreign husbands. Utilizing the three-act narrative structure theory as an analytical framework, Stuart Hall's concepts of representation and Dyer's work on Whiteness, this research reveals how Korean media, particularly television, reflects unbalanced and racially biased portrayals of foreign husbands. Such unequal representations not only illustrate the practice of racism within the Korean context but also shed light on how …

Dosimetric Effects Of Pinnacle³ Version 18.0 Advanced Auto-Planning Settings In Oropharyngeal Vmat Optimization, Emily Sanden

Masters Projects

This study evaluated the impact of Pinnacle³ version 18.0 auto-planning advanced settings modulation amount, monitor unit (MU) level, and dose fall-off priority on volumetric modulated arc therapy (VMAT) plan quality for bilateral oropharyngeal cancer. A total of 64 plans were generated using all possible combinations of low, medium, high, and very high settings for each parameter. A standardized base of tongue case was optimized once per plan using a single-time point approach, with planned target volume 1 (PTV1) (6996 cGy) and planned target volume 2 (PTV2) (5412 cGy) coverage evaluated. Each parotid gland, the spinal cord, brainstem, and the oral …

Synthesizing Co-Reading Behaviors: Insights From Graduate Students’ Experience And A Rapid Scoping Review, Watcharasak Sudla, Wannee Kaemkate

Higher Learning Research Communications

Objectives: Collaborative reading of research articles is essential for graduate students to develop academic reading skills through peer engagement in knowledge sharing, reflection, and feedback. However, limited information exists about the behaviors indicative of co-reading practices. This study aims to identify behavioral indicators and social participation in students’ co-reading of research articles.

Methods: In this study, we integrated key behavioral indicators of co-reading based on data from interviews with 23 graduate students and a rapid scoping review. The collected data were then subjected to content analysis and data visualization.

Results: The findings categorize individuals involved in co-reading into six groups: …

The Nature Of Anthropogenically Driven River Drying: Spatiotemporal Causes And Consequences, Eliza Inez Gilbert

Biology ETDs

Streambed drying naturally occurs in over 60% of rivers and streams worldwide. Climate change and human regulation of surface and groundwater have increased drying in naturally intermittent systems and caused perennial systems to transition to intermittency, impacting water security, water quality, and biodiversity. To understand human-induced drying dynamics, we used 12 years of daily drying data along a 154-km regulated reach of the Rio Grande. We conceptualized river drying as a regime analogous to the natural flow regime paradigm and quantified drying magnitude, rate of change, and duration. Although linear models predicting drying magnitude and rate of change were uninterpretable, …

Ionic Liquid Enhanced Proton Transfer For Neutral Oxygen Evolution Reaction, Ming-Xing Chen, Nian Liu, Zi-He Dua, Jing Qi, Rui Cao

Journal of Electrochemistry

The development of highly active catalyst in pH-neutral media for oxygen evolution reaction (OER) is critical in the field of renewable energy storage and conversion. Nevertheless, the slow kinetics of proton-coupled electron transfer (PCET) hinders the overall OER efficiency. Herein, we report an ionic liquid (IL) modified CoSn(OH)₆ nanocubes (denoted as CoSn(OH)₆-IL), which could be prepared through a facile strategy. The modified IL would not change the structural characteristics of CoSn(OH)₆, but could effectively regulate the local proton activity near the active sites. The CoSn(OH)₆-IL exhibited higher intrinsic OER performances than the pristine …

Explore Toolkit, Kimberly Page, Janet Page Reeves, Ivan De La Rosa, Marie Alice Scott, Christina Phillips, Maria Sanchez, Andrew Gorvetzian, Joe Albright, Cynthia Killough, Randall Benalli

Epidemiology, Biostatistics, and Preventive Medicine

Welcome to the Exploring Health Beliefs for Community Engagement and Diversity in Clinical Trials (EXPLORE) Toolkit, a resource designed to support researchers and frontline workers addressing substance use in the Borderlands. The EXPLORE Toolkit was designed by an interdisciplinary team of epidemiologists, social workers, anthropologists, and public health professionals to enhance the engagement of underrepresented communities in substance use clinical trials. Utilizing a strength-based approach, the toolkit addresses equity, stigma, and participation barriers, promoting culturally sensitive and community-centered research practices. This toolkit is an ideal tool for clinical trials researchers and community health workers who are interested in learning more …

A Tale Of Two Worlds: A Framework For Translating Literary Fiction Into Architectural Space, Timothy D. Anderson

Bachelor of Architecture Theses - 5th Year

Authors and orators have employed fictional stories for thousands of years as a crucial method for translating narratives, lessons, and intangible culture. These take shape through diverse art forms such as spoken word, visual art, dance, and sculpture. However, in the current age, architecture often neglects its immersive and spatial potential, allowing stories of a site’s heritage to become lost beneath the layers of urban development. This thesis explores design as storytelling, examining how fictional narratives can be translated into architectural space.

The research draws on fictional and speculative narrative architecture, analyzing the use of metaphor, symbol, and allegory as …

Testing The Utility Of The Three Good Things Intervention For Cannabis Misuse Among College Students, Paige Morris

LSU Doctoral Dissertations

College students experience high rates of cannabis use and use-related problems. Existing brief online interventions for cannabis misuse among college students do not significantly reduce cannabis use and use-related problems relative to control conditions. This may be due to limited consideration of the role of affect, given that cannabis is frequently used for managing affect, especially among individuals with greater depression and social anxiety. The present study sought to improve the efficacy of brief online interventions for cannabis misuse among college students by testing the efficacy of the Three Good Things (3GT; Seligman et al., 2005) intervention, a daily exercise …

The Impact Of Non-Athletic, Flat-Soled Sneakers On Gait Kinematics: A Comparative Analysis With Socks, Aaron Aguilar, Kharen Bautista, Juan Claros, Raquel Dimaano, Ciara Franke, Mason Huber, Evan Kurishige, Anton Lam, Kevin Le, Alohi Sheung, Raj Kumar Chauhan, Sivakumar Rajagopal, Seong Hyun Moon, Michael Shiraishi, Rahul Soangra

Physical Therapy Faculty Articles and Research

This study investigates the kinematic effects of non-athletic, flat-soled sneakers on lower extremity joints during walking. Ten healthy gym-goers (24.4 ± 1.7 years) underwent treadmill gait analysis under two conditions: wearing non-athletic sneakers and walking with only socks. Gait was captured using the Gait Real-time Analysis and Interactive Lab (GRAIL). Dependent variables included cadence, support times, and stride length. Walking with socks significantly increased cadence (p <  .0001) and single support time (p = .0103), and decreased initial (p = .018), terminal (p = .0056), and total double support times (p = .0092). No significant difference in stride length was observed. These …

Miniature Carnation Cut Flower Production In Utah, Kellie Webb, Melanie Stock, Benjamin Scow, Cheyenne Reid, Victoria Xiong, Claudia Nischwitz, Nick Volesky

All Current Publications

Carnation is one of the most popular cut flowers worldwide and has been grown for centuries. The delicate, fringed petals of miniature carnation have a spicy, clove-like scent and are often used commercially in potpourri and perfume. Florists value the scent, versatility in both large and small design work, long vase life, and broad range of colors, which include yellow, orange, pink, white, red, and purple. While traditionally grown under cover in regions like Colombia and Ecuador, carnation may be a viable cut flower for U.S. Intermountain West growers, as plants tolerate frost and grow well in both cool and …

The 15-Minute City And Social Behavior Changes In The Tod Area: Blok M-Sisingamangaraja Tod Case Study, Dede Julfikar, Lin Yola

International Review of Humanities Studies

The changing process of the city can be due to economic development that results in urbanization then enlarges the city. This situation affects the growth and evolution of other activities in urban areas such as the emergence of new residential areas, industrial zones, and trade and service (commercial) areas. The government of DKI Jakarta is targetting to develop many public transportation infrastructure due to its target of 2040 70% of Jakarta residents live near by transit points. So that the distance of residential residents to urban facilities can be reached within 15 minutes of walking, cycling or using public transportation. …

The Middle Class, The Youth, The Highways: Production Of Space And Urban Memory In Blok M, Jakarta, Bimana Novantara, Yudi Bachrioktora, Lilawati Kurnia

International Review of Humanities Studies

This paper examines the historical and contemporary dynamics of the Blok M area in Jakarta as a public space undergoing a process of spatial, cultural, and symbolic transformation. Using Henri Lefebvre’s theory of the production of space and then relating it to the discourse of urban memory according to Abidin Kusno, this study traces how Blok M developed from the modernist urban planning of Kebayoran Baru after independence to be the epicenter of youth festivity, then declined until it rose again through a place that utilized the memory of this area in the past. This study highlights how the politics …

Language Of Love: Kafka’S Affective Meaning In Briefe An Milena, Kafka Aisyah Triny, Julia Wulandari

International Review of Humanities Studies

Franz Kafka is known for his twisted literature filled with dark atmosphere and word choices, however when it comes to writing letters to his muse, Milena, he uses words unknown to him. He expresses his barest soul to her using word choices that indicate someone who is amazed. For a person like Kafka, love is not all about complementing word choices and emotions, seen by his internal battles with himself and uncertainty regarding the topic of love. This research will use Geoffrey Leech’s semantic framework along with Monica Schwarz and Jeannette Chur’s Wortfeld theory. The study aims to examine Kafka’s …

Regulating The Amount Of Graphene Oxide For Enhanced Capacitive Energy Storage Of Mof Derived Materials, Yong-Ji Qin, Jing-Quan Yang, Hao Wang, Mei-Ling Lian, Pei-Pei Jia, Jun Luo, Xi-Jun Liu, Jun-Feng Liu

Journal of Electrochemistry

In pursuit of more efficient and stable electrochemical energy storage materials, composite materials consisting of metal oxides and graphene oxide have garnered significant attention due to their unique structures and exceptional properties. Graphene oxide (GO), a two-dimensional material with an extremely high specific surface area and excellent conductivity, offers new possibilities for enhancing the electrochemical performance of metal oxides. In this work, we synthesized metal- organic framework (MOF) and GO composites by regulating the amount of GO, and successfully prepared composites of metal oxides supported by nitrogen-doped carbon frameworks and GO through a simple one-step calcination process. Based on the …

Early Developmental Crime Prevention And Social Impact Over The Life Course, Brandon C. Welsh, Heather L. Paterson, Michael Rocque, David P. Farrington

All Faculty Scholarship

Preventing the development of criminal potential in young people is an important component of broader crime reduction strategies. A key feature of developmental crime prevention is a comprehensive effort to improve the life chances of at-risk children and families, and there is evidence that doing so improves long-term life-course outcomes like physical health, mental health, education, and employment. We assess available research evidence from 12 high-quality studies of developmental crime prevention initiatives and find that extensive use of multimodal interventions helps to foster cumulative protection over the life course, that there are significant improvements in other outcomes over the life …

Thermally Tunable Mid-Infrared Nanocavity Resonance Of Coupled Surface Plasmon-Phonon Polaritons, Satya R. Kachiraju, Zachary M. Brown, Sundar Kunwar, Long Chang, Imtiaz Ahmad, Pinku Roy, Vladimir Kuryatkov, Yejin Kwon, Ayrton A. Bernussi, Chase T. Ellis

Physics & Astronomy Faculty Publications

Phase-change materials (PCMs) are essential for achieving tunability of metasurfaces. However, they frequently face limitations in the long-wave infrared range because of their lossy behavior. Here, we experimentally demonstrate a thermally tunable mid-infrared nanocavity resonance from coupled surface plasmon-phonon polaritons that are supported within a trilayer structure of metal-PCM layer-polar dielectric (Au-VO2-SiC). The top metal structures configure the Fabry-Perot cavity resonance near 840 cm−1 (11.9 µm), which is sensitively tunable and reversible with small changes in the VO2 refractive index ∆n near below its insulator-to-metal phase transition temperature where the loss is small. The maximum resonance shift of 7.7 cm−1 …

Perceived Impact Of Participating As A Former Immigrant High School Athlete In A Program That Prioritized Social-Emotional Needs And Self-Determination Of Young Adult Males, Filip Cejovic

Walden Dissertations and Doctoral Studies

Many studies have confirmed the positive impacts of extracurricular activities on students' academic achievement and social success, but also revealed that few educational policies go beyond addressing the most basic needs of language and lunch for immigrant students. As the process of assimilation can impact numerous factors and long-term outcomes for these students, this study explored extracurricular program structures that prioritize participants’ psychological needs and whether these structures have a positive impact on immigrant students’ self-determination, intrinsic motivation, and future success. This qualitative, practice-focused case study examined a purposeful sample of one boys’ high school soccer program at a public …

Effective Strategies For Deterring Unethical Behavior In U.S. Financial Institutions, Samuel Akinlade Sanni

Walden Dissertations and Doctoral Studies

Unethical employee behavior in U.S. financial institutions continues to erode organizational trust and firms’ brand reputation. Leaders of financial institutions are concerned that unethical employee behavior can negatively impact firms’ profitability, competitiveness, and sustainability. Grounded in Kaptein’s corporate ethics virtue (CEV) model, the purpose of this qualitative pragmatic inquiry study was to explore how organizational ethical cultures influence employees’ behaviors. Data were collected through semistructured interviews with a sample of eight leaders in New York financial institutions, with a minimum of 5 years of successful experience in building a positive ethical environment, and by analyzing publicly available documents to support …

Association Between Sociocultural Factors, Obesity, And Depression In The Hispanic/Latino Population, Maia Junco

Walden Dissertations and Doctoral Studies

The increasing prevalence of obesity and mental health disparities among Hispanic/Latino populations in the United States underscores the need to understand how sociocultural factors shape physical and psychological health. The purpose of this study was to examine how acculturation, diet quality, and fiber intake affect BMI and depressive symptoms over time. The study was guided by acculturation theory and the biopsychosocial model. The study used longitudinal secondary data from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) with a sample of N=8,816, including adults who completed examination visits, 1 (2008–2011) and 2 (2014–2017). Path analysis was conducted to assess direct …

A Multi-Scale Numerical Analysis Of Wave Propagation Through Coastal Vegetation Using Proteus & Xbeach, Cole M. Statler

LSU Master's Theses

Coastal vegetation attenuates waves in the nearshore zone and protects shorelines from storm surge and wave action. It also traps nutrients and sediment, and participates in the formation of land over longer time scales. These features of vegetation make it a common component of nature-based engineering projects. Interaction of water waves and flow with vegetation, however, can involve unsteady and turbulent flow, non-hyrdostatic pressure effects, and air entrainment that can hinder the use of simple parametric representations of vegetation drag. XBeach, a one- and two-dimensional production model applies reduced-order methods, prioritizing computational efficiency. Vegetation is represented in XBeach as a …

A Qualitative Exploration Of The Potential Benefits Of Nature-Based Approaches For Staff And Children And Young People In Child And Adolescent Mental Health Services, Beth Chapman, Siobhan B. Mitchell, Rebecca Hardwick, Hélène Bonnici, Hazel Banks, Silvana Mareva, Rachel Hayes

Peninsula Medical School

Across the UK there are concerns about young people’s mental health, with rates of ill health increasing and referrals to Child and Adolescent Mental Health services (CAMHS) doubling. This study explores the potential benefits of incorporating Nature-Based Approaches (NBAs) within CAMHS. Providers are understaffed, under-resourced and under pressure. NBAs offer a way of working which could address some of these challenges, yet little is known about the potential benefits of NBAs in the context of CAMHS. The project aimed to explore staff understanding of NBAs, and to identify potential benefits of integrating NBAs into practice. Staff within a South of …

Considerations In Using Heart Rate-Based Physical Activity Estimates From Consumer Wearables In Individuals With Varying Weight Status., Denver M Y Brown, David Wing, Christopher D. Pfledderer, Peter Stoepker, Stuart J. Fairclough, Jordan A. Carlson

Manuscripts, Articles, Book Chapters and Other Papers

Although moderate-to-vigorous physical activity (MVPA) is a widely used construct in physical activity (PA) research, the lack of standardized assessment methods- particularly with the growing use of consumer-grade wearable activity trackers- poses challenges for comparability. Consumer-grade devices tend to rely on heart rate (HR)-based estimation methods to classify PA intensity, which contrasts with traditional research-grade accelerometers that use count- or raw-acceleration metrics. Comparability issues are particularly salient across individuals with varying weight status. In this commentary, we discuss systematic discrepancies between HR-based (relative intensity) and acceleration-based (absolute intensity) classifications of MVPA among individuals with differing weight statuses. Using Fitbit data …