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Bodies As Vessels: (Re)Production, Consumption, And Female Identity In The Handmaid’S Tale And Dawn, Shelby Clark Apr 2026

Bodies As Vessels: (Re)Production, Consumption, And Female Identity In The Handmaid’S Tale And Dawn, Shelby Clark

Honors Theses

This honors thesis examines how reproduction and food are used to signify power and impact female identity in Margaret Atwood’s The Handmaid's Tale and Octavia Butler’s Dawn. Both feminist dystopian novels portray societies that secure futurity through the commodification and management of women's domestic labor. The protagonist of each novel, Offred in The Handmaid's Tale and Lilith in Dawn, is responsible for ensuring the survival of humanity through forced reproduction and is additionally expected to produce or manage food. In this thesis, I argue that in both novels, female identity is reclaimed and affirmed as separate from a commodified state …

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Optimizing Auv Perception For Competitive Underwater Robotics: Analyzing Performance And Simplicity Of Machine Vision Hardware, Joseph King Apr 2026

Optimizing Auv Perception For Competitive Underwater Robotics: Analyzing Performance And Simplicity Of Machine Vision Hardware, Joseph King

Honors Theses

Underwater robotics is a growing field with many practical applications, such as pipeline and offshore structure monitoring, deep sea mining, mine reconnaissance/removal, and marine environmental monitoring. USM’s Robotics Club will participate in the international RoboSub competition, where student-led teams build autonomous underwater vehicles (AUVs) that perform a variety of tasks within a pool requiring camera-based object detection. This project analyzes affordable hardware and software options for providing machine vision to USM’s future RoboSub AUV. The performance of an ESP32-CAM microcontroller, Raspberry Pi 5, and Jetson Orin Nano single-board computers running FOMO and YOLO object detection models was compared. These models …

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Digital Citizenship Among Middle School Students In Oman: A Study Considering Various Variables, Suad Saleh Al Wahaibi, Khalfan Zahran Al-Hijji, Raja Maznah Raja Husain Apr 2026

Digital Citizenship Among Middle School Students In Oman: A Study Considering Various Variables, Suad Saleh Al Wahaibi, Khalfan Zahran Al-Hijji, Raja Maznah Raja Husain

Journal of Educational and Psychological Studies

This study examined the level of digital citizenship (DC) among grade 10 students in Oman with respect to gender, internet usage duration, and exposure to online threats. A total of 1,022 students participated during the 2022/2023 academic year. The study employed a questionnaire constructed on Ribble’s (2015) Respect, Educate, and Protect (REP) model and applied a random cluster sampling technique. Results revealed that students’ DC level was moderate overall. No statistically significant difference was found between male and female students, while there were significant differences in DC scores in terms of facing online threats and in terms of internet usage …

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The Digital Dilemma: Social Media’S Influence On Children’S Well-Being In Developing Nations: A Systematic Literature Review, Hilal Hamed Al Busaidi, Ayman Al Shukri, Moosa Al Shukaili, Yahya Al Niyadi, Adil H Al Kindi Apr 2026

The Digital Dilemma: Social Media’S Influence On Children’S Well-Being In Developing Nations: A Systematic Literature Review, Hilal Hamed Al Busaidi, Ayman Al Shukri, Moosa Al Shukaili, Yahya Al Niyadi, Adil H Al Kindi

Journal of Educational and Psychological Studies

Social media has become an integral part of the lives of teenagers and children, particularly in developing countries. Though it opens avenues for communication and expression, it also plays a serious role in mental health. This paper conducts a systematic literature review (SLR) of published studies from 2015 to 2025, utilizing the databases of PubMed, Scopus, and Web of Science, to assess the impact of social networking sites on the mental health of children’s populations in low- and middle-income countries. The review identifies three concern areas: cyberbullying, increased anxiety and depression rates, and socioeconomic factors’ effects. Literature suggests that adolescents …

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Dissection Of The Quintuple Product, With Applications, Tim Huber, James Mclaughlin, Dongxi Ye Apr 2026

Dissection Of The Quintuple Product, With Applications, Tim Huber, James Mclaughlin, Dongxi Ye

School of Mathematical & Statistical Sciences Faculty Publications

This work considers the m-dissection (for m≢0(mod3)">m≢0(mod3)) of the general quintuple productQ(z,q)=(z,q/z,q;q)∞(qz2,q/z2;q2)∞.">Q(z,q)=(z,q/z,q;q)∞(qz2,q/z2;q2)∞.Multiple novel applications arise from this m-dissection. For example, we derive the general partition identityDS(mn+(m2−1)/24)=(−1)(m+1)/6bm(n), for all n≥0,">DS(mn+(m2−1)/24)=(−1)(m+1)/6bm(n), for all n≥0,where m≡5(mod6)">m≡5(mod6) is a square-free positive integer relatively prime to 6; DS(n)">DS(n) is defined, for S the set of positive integers containing no multiples of m, to be the number of partitions of n into an even number of distinct parts from S minus the number of partitions of n into an odd number of distinct parts from S; and …

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Soliton Solutions To The Coupled Sasa–Satsuma Equation Under Mixed Boundary Conditions, Changyan Shi, Xiyao Chen, Guangxiong Zhang, Chengfa Wu, Bao-Feng Feng Apr 2026

Soliton Solutions To The Coupled Sasa–Satsuma Equation Under Mixed Boundary Conditions, Changyan Shi, Xiyao Chen, Guangxiong Zhang, Chengfa Wu, Bao-Feng Feng

School of Mathematical & Statistical Sciences Faculty Publications

In this paper, we derive general bright–dark soliton solutions to the coupled Sasa–Satsuma (CSS) equation using the Kadomtsev–Petviashvili reduction method. Since the CSS equation is a special case of the four-component Hirota equation, our approach begins with the construction of two-bright-two-dark soliton solutions for the four-component Hirota equation. By imposing specific parameter constraints, these solutions are subsequently reduced to the bright–dark soliton solutions of the CSS equation. Finally, the dynamical behaviours of the one- and two-bright–dark soliton solutions are thoroughly analysed and illustrated.

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Short-Term Electricity Price Forecasting With Constrained Regressors, Mucun Sun, Li Zhang, Yifeng Gao Apr 2026

Short-Term Electricity Price Forecasting With Constrained Regressors, Mucun Sun, Li Zhang, Yifeng Gao

Computer Science Faculty Publications

The volatility of electricity price presents a challenge to market participants as their decision-making process are highly depend on the accuracy of price forecasts. However, there is growing empirical evidence of increasing price volatility and price spikes in electricity markets as a result of variable renewable energy generation, extreme weather events, and other factors. The distribution shift caused by spikes in electricity price data differentiates the forecasting tasks from other renewable energy sources. Moreover, the observations may be compromised by cyberattacks and thus not available in the testing phase. To this end, we propose a Similarity-Enhanced Electricity Decomposition Forecasting model …

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Careers In A Box: A Promising Career Exploration Curriculum For Rural Youth, Kristine M. Ramsay-Seaner, Amber Letcher, Elizabeth Koob, Meagan Scott Hoffman, Laura Hasselquist Apr 2026

Careers In A Box: A Promising Career Exploration Curriculum For Rural Youth, Kristine M. Ramsay-Seaner, Amber Letcher, Elizabeth Koob, Meagan Scott Hoffman, Laura Hasselquist

The Rural Educator

This article highlights a career exploration curriculum that was developed to support the vocational guidance needs of school counselors working in six rural, high-need communities in North Dakota and South Dakota. Based on social cognitive career theory, Careers in a Box was created to bridge existing gaps in career exploration curricula for rural middle school youth. This grab-and-go curriculum introduces participants to specific careers across the spectrum of food, agriculture, natural resources, and human sciences and provides them with hands-on activities associated with these careers. While program evaluation is ongoing, preliminary results indicate an associated increase in personal resilience in …

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Evaluating A Research Experience For Teachers: Benefits And Challenges For Summer Stem Professional Development, Mark T. Felts, Darcy Tessman, Emily Simpson, Mark Nanny Apr 2026

Evaluating A Research Experience For Teachers: Benefits And Challenges For Summer Stem Professional Development, Mark T. Felts, Darcy Tessman, Emily Simpson, Mark Nanny

The Rural Educator

This focus group study examined the participant motivation for and potential impact of the Research Experience for Teachers (RET) program on rural STEM educators. Due to geographic isolation and low wages in rural areas, STEM teachers often engage in summer work, which provides practical, real-world applications of STEM principles and enhances instructional methods during the school year. By fostering university partnerships and providing summer research opportunities, RET aligns with the National Rural Research Agenda’s (NREA) priorities of enhancing community relationships and bolstering teacher preparation, recruitment, and retention. Findings indicate that participation in RET boosts teachers’ curricular skills, professional networks, and …

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Outdoor Learning In Rural Schools: Lessons From A Positive Outlier Case Study, Lauren E. Jacobs, Christiaan G. Abildso, Adam J. Daigneault, Jessica E. Leahy, Christopher J. Nightingale Apr 2026

Outdoor Learning In Rural Schools: Lessons From A Positive Outlier Case Study, Lauren E. Jacobs, Christiaan G. Abildso, Adam J. Daigneault, Jessica E. Leahy, Christopher J. Nightingale

The Rural Educator

This study explored the barriers and facilitators to outdoor learning and outdoor activities in a small K–12 case school in rural Maine. The case school was a positive outlier (PO), providing significant outdoor learning and activity opportunities to all students during the school day. Outdoor learning and outdoor pursuits in school settings can increase student physical activity, provide opportunities for students to reap the mental and emotional benefits from time in nature, and help them make important connections to local culture. The positive outlier methodological approach sought to uncover reasons for the case school’s PO status and find practical strategies …

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The Territorial Continuum: American Samoa, Criminal Adjudication, And Territorial Administration, Emmanuel Hiram Arnaud Apr 2026

The Territorial Continuum: American Samoa, Criminal Adjudication, And Territorial Administration, Emmanuel Hiram Arnaud

Cardozo Law Review

The standard account of American territorial expansion posits that territorial acquisition moved along a spectrum of sovereignty. The federal government acquired new inhabited land through conquest or purchase, and the Constitution tasked Congress with organizing and administering the new territories until they were ready to become states. That pattern came to an abrupt halt in 1898 when, at the conclusion of the Spanish-American War, the Supreme Court, fearing the extension of citizenship to and the permanent integration of non-White populations into the American polity, suddenly pronounced that the Constitution authorized the holding of colonies. The Court thus sentenced new territories, …

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From Waiver To Shield: The Routine Misapplication Of The Federal Tort Claims Act’S Discretionary Function Exception, Alexander Sitnikov Apr 2026

From Waiver To Shield: The Routine Misapplication Of The Federal Tort Claims Act’S Discretionary Function Exception, Alexander Sitnikov

Cardozo Law Review

When a pedestrian trips and falls on a defective sidewalk, liability usually turns on negligence. But when the property surrounding the sidewalk belongs to the federal government, tort liability often vanishes altogether. This result is just one of the many shortcomings of the Federal Tort Claims Act (FTCA) and one of its most controversial and heavily litigated provisions: the discretionary function exception (“DFE”). This Note explores the current judicial interpretations of the FTCA and DFE, which often work in conjunction with state laws and federal regulations. Despite the central public policy rationale and congressional intent surrounding the FTCA and its …

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Preoperative Health During A Pandemic: An Observational Study Assessing Lifestyle Changes In Patients Associated With Covid-19 In Western Australia, Nadine Radin, Dana Hince, Jim Codde, Paola Chivers, Dale W. Edgar Apr 2026

Preoperative Health During A Pandemic: An Observational Study Assessing Lifestyle Changes In Patients Associated With Covid-19 In Western Australia, Nadine Radin, Dana Hince, Jim Codde, Paola Chivers, Dale W. Edgar

Research outputs 2022 to 2026

Background and Aim: Healthcare service disruptions resulting from the COVID-19 pandemic led to substantial changes in surgical pathways across public hospitals in Western Australia (WA). These disruptions, compounded by restrictions and containment measures, influenced the health and lifestyle behaviours of the WA community, including patients awaiting surgery. This study aimed to assess changes in self-reported modifiable lifestyle risk factors among patients during COVID-19. Methods: This observational study analysed hospital patient data across three seasonally matched calendar periods: Period 1 (January–March 2019 vs 2020), Period 2 (March–July 2019 vs 2020), and Period 3 (July–December 2019 vs 2020). Multivariable regression models were …

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Length And Framing Of Anti-Junk Food Ads Impact Inclinations To Consume Junk Food Among Normal Weight, Overweight, And Adults With Obesity, Ross C. Hollett, Brennen Mills, Stephanie L. Godrich, Julia Butt, Gina S.A. Trapp Apr 2026

Length And Framing Of Anti-Junk Food Ads Impact Inclinations To Consume Junk Food Among Normal Weight, Overweight, And Adults With Obesity, Ross C. Hollett, Brennen Mills, Stephanie L. Godrich, Julia Butt, Gina S.A. Trapp

Research outputs 2022 to 2026

Background: Unrestricted junk food advertising increases the risk of short-term junk food consumption among viewers. We aimed to estimate the impact of junk food and anti-junk food advertisements differing in length and framing on junk food consumption inclinations. Methods: Adult participants (N = 505) were exposed to a randomly selected junk food advertisement or anti-junk food advertisement and reported their immediate craving and consumption intentions. These responses were separately analysed for two groups based on Body Mass Index (BMI): participants classified as within the normal range (18.5–25), and a combined group with BMI values indicating either overweight (25+) or obesity …

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A Flexible Wearable Glucose Sensor For Noninvasive Diabetes Screening: Functional Equivalence And Model Interpretability, Wenhan Xie, Wang, Hao Liu, Shuo Chen, Peng Wang, Yumei Han, Xianxiang Chen, Zhen Fang, Zhan Zhao, Guohong Zhang, Xiuhua Guo Apr 2026

A Flexible Wearable Glucose Sensor For Noninvasive Diabetes Screening: Functional Equivalence And Model Interpretability, Wenhan Xie, Wang, Hao Liu, Shuo Chen, Peng Wang, Yumei Han, Xianxiang Chen, Zhen Fang, Zhan Zhao, Guohong Zhang, Xiuhua Guo

Research outputs 2022 to 2026

Real-world evidence for wearable noninvasive glucose monitoring (NIGM) remains limited. To evaluate the functional equivalence of a wearable NIGM device and explore its utility for T2DM and prediabetes screening. In this multicenter study, 12-h daytime glucose profiles obtained by a flexible reverse iontophoresis-based electrochemical sensor were compared with capillary glucose using functional equivalence. Subgroup analyses were conducted. Screening models of T2DM and prediabetes were developed using elastic net and Logistic regression. A total of 135 participants (mean age 35.3 years; 60.0% female) were included, and no serious device-related adverse events were reported. Compared to the capillary measurements, functional equivalence was …

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A Supervised, Online, Home-Based Eccentric Resistance Exercise Program For Patients With Metabolic Dysfunction-Associated Steatotic Liver Disease, Kedar S. Deshpande, Nosaka, Aus Molan, Isaac S. Raj, John K. Olynyk, Oyekoya T. Ayonrinded Apr 2026

A Supervised, Online, Home-Based Eccentric Resistance Exercise Program For Patients With Metabolic Dysfunction-Associated Steatotic Liver Disease, Kedar S. Deshpande, Nosaka, Aus Molan, Isaac S. Raj, John K. Olynyk, Oyekoya T. Ayonrinded

Research outputs 2022 to 2026

Background: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most common non-communicable chronic liver disease worldwide, increasing long-term risk of cirrhosis, type 2 diabetes mellitus, and cardiovascular diseases. Although reducing liver steatosis by increasing physical activity can lower these risks, patients with MASLD often struggle to exercise regularly. We examined the effects of a supervised, home-based, online bodyweight eccentric exercise program on liver and metabolic markers, and physical fitness in patients with MASLD. Methods: Sixteen adults with MASLD (24–91 years) were assigned to an exercise group (n = 9) or a control group receiving lifestyle counselling (n = 7). The …

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Abca4 Versus Prph2-Associated Retinopathy: Clinical And Electrophysiological Findings, Rachael C. Heath Jeffery, A. Thompson, Johnny Lo, Andrea L. Vincent, Minal Patil, Lorenzo Bianco, Maurizio Battaglia Parodi, Lucia Ziccardi, Carmen Dell’Aquila, Lucilla Barbano, Wei Chao Tang, Choi Mun Chan, Camiel J.F. Boon, Jonathan Hensman, Ta Ching Chen, Chien Yu Lin, Pei Lung Chen, Ajoy Vincent, Anupreet Tumber, Elise Heon, John R. Grigg, Robyn V. Jamieson, Elisa E. Cornish, Benjamin N. Nash, Jeremy Chou, Tina M. Lamey Apr 2026

Abca4 Versus Prph2-Associated Retinopathy: Clinical And Electrophysiological Findings, Rachael C. Heath Jeffery, A. Thompson, Johnny Lo, Andrea L. Vincent, Minal Patil, Lorenzo Bianco, Maurizio Battaglia Parodi, Lucia Ziccardi, Carmen Dell’Aquila, Lucilla Barbano, Wei Chao Tang, Choi Mun Chan, Camiel J.F. Boon, Jonathan Hensman, Ta Ching Chen, Chien Yu Lin, Pei Lung Chen, Ajoy Vincent, Anupreet Tumber, Elise Heon, John R. Grigg, Robyn V. Jamieson, Elisa E. Cornish, Benjamin N. Nash, Jeremy Chou, Tina M. Lamey

Research outputs 2022 to 2026

Purpose. The purpose of this study was to characterize the clinical features, electrophysiology, and variant spectrum in ABCA4- and PRPH2-retinopathies and to identify novel electrodiagnostic biomarkers to differentiate between these two genotypes. Methods. We conducted an international multicenter case-control study of patients with a clinical and genetic diagnosis of ABCA4- or PRPH2-retinopathy. Age at symptom onset, best-corrected visual acuity (BCVA), electroretinography (ERG) components, and fundus autofluorescence (FAF) imaging were compared. Subgroup exploratory analysis was performed on those patients with a phenotype similar to central areolar choroidal dystrophy (“CACD-like”), those with flecks distributed throughout the posterior pole (“fleck-like”) and a healthy …

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Disuse-Induced Muscle Atrophy And Muscle Weakness From Hospitalization To Spaceflight: Exercise Succeeds In Prevention And Treatment—A Meta-Analysis, Camila S. Padilha, Figueiredo, Rafael Deminice, S. Ribeiro, Robert U. Newton, Nicolas H. Hart, José Cesar Rosa-Neto, Marília Seelaender, Fábio Santos Lira Apr 2026

Disuse-Induced Muscle Atrophy And Muscle Weakness From Hospitalization To Spaceflight: Exercise Succeeds In Prevention And Treatment—A Meta-Analysis, Camila S. Padilha, Figueiredo, Rafael Deminice, S. Ribeiro, Robert U. Newton, Nicolas H. Hart, José Cesar Rosa-Neto, Marília Seelaender, Fábio Santos Lira

Research outputs 2022 to 2026

Background: Exercise has been proposed as both a preventive and therapeutic countermeasure; however, its effectiveness across different disuse conditions and timings of implementation remains uncertain. Methods: This systematic review and meta-analysis (PROSPERO: CRD42021256599) searched ClinicalTrials.gov, Cochrane Central, PubMed, SPORTDiscus, Web of Science, Scopus, CINAHL and SciELO from inception to May 2021, with an update in March 2025. Randomized and nonrandomized controlled trials examining exercise interventions during or after muscle disuse were included according to the PICOS framework. Random-effects meta-analysis evaluated effects on muscle strength, power and mass across hospitalization, bed rest and spaceflight conditions. Effect sizes (ES) are reported as …

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The Age Of Activewear: Understanding Women’S Casualized Athletic Apparel Habits Through Associations With Psychosocial And Body Image Factors, Ross C. Hollett, R. Sharman, Domenic D’Adamo Apr 2026

The Age Of Activewear: Understanding Women’S Casualized Athletic Apparel Habits Through Associations With Psychosocial And Body Image Factors, Ross C. Hollett, R. Sharman, Domenic D’Adamo

Research outputs 2022 to 2026

Activewear has become a common component of women’s everyday clothing, yet emerging evidence suggests that exposure to activewear imagery may adversely affect body image. This study aimed to describe women’s activewear engagement across contexts and to investigate how different markers of engagement correspond with positive outcomes such as fitness behavior, body appreciation, and self-esteem, as well as negative outcomes including media pressure, idealized appearance aspirations, and self-objectification. We collected survey data from student (N = 455) and community (N = 374) samples to assess activewear-related behaviors, including online browsing, social media following, purchasing, and wearing, as well as measures of …

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Upper Ocean Cycling Of Iron South Of The Polar Front: Biological Patterns And Processes, Luis M. Laglera, Santos-Echeandía, Viena Puigcorbé, Christine Klass, Dieter Wolf-Gladrow Apr 2026

Upper Ocean Cycling Of Iron South Of The Polar Front: Biological Patterns And Processes, Luis M. Laglera, Santos-Echeandía, Viena Puigcorbé, Christine Klass, Dieter Wolf-Gladrow

Research outputs 2022 to 2026

Samples from the upper 300 m along the 52°S band, south of the Antarctic Polar Front in the Atlantic sector of the Southern Ocean, including a 3-week monitoring of a persistent bloom, were analyzed to advance our understanding of iron cycling and supply to recurrent phytoplankton blooms. We measured dissolved Fe (dFe, <0.2 μm) and labile particulate iron using a mild acid leach (pLFe48h) targeting primarily detrital and fecal material. Particulate iron was partitioned into size classes to distinguish small, “slow” sinking particles (<53 μm) from large, “fast” sinking particles (>53 μm), while intermediate fractions were analyzed to investigate aggregation and export processes. Across all stations, dFe exhibited a consistent vertical structure, including a previously undescribed …

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Partisan Differences In Risk-Taking In A Simulated Pandemic, Jan K. Woike, Sebastian Hafenbrädl, Patricia Kanngiesser, Ralph Hertwig Apr 2026

Partisan Differences In Risk-Taking In A Simulated Pandemic, Jan K. Woike, Sebastian Hafenbrädl, Patricia Kanngiesser, Ralph Hertwig

School of Psychology

Responses to COVID-19 in the United States were split along partisan political lines throughout the pandemic. People on the political left tended to take the medical threat more seriously and were more likely to adopt preventive health behaviors than those on the political right, resulting in clear differences in state-level policies and health consequences. Here, we examine the origins of these differences, investigating whether they are based on interindividual differences or in party dynamics. Two groups of participants (N=819), who had voted either for Donald Trump or Hillary Clinton in 2016, played the Transmission Game. Players made repeated decisions in …

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Evidence Base To Inform Health Service Configuration For Abortion Provision: The Sacha (Shaping Abortion For Change) Multi-Component Study, Kaye Wellings, Rebecca S. French, Annette Aronsson, Paula Baraitser, Sharon Cameron, Caroline Free, Louise Keogh, Maria Lewandowska, Patricia Lohr, Rebecca Meiksin, Ona Mccarthy, Clare Murphy, Wendy Norman, Melissa Palmer, Jennifer Reiter, Natasha Salaria, Rachel Scott, Jill Shawe, Sally Sheldon, Geoff Wong Apr 2026

Evidence Base To Inform Health Service Configuration For Abortion Provision: The Sacha (Shaping Abortion For Change) Multi-Component Study, Kaye Wellings, Rebecca S. French, Annette Aronsson, Paula Baraitser, Sharon Cameron, Caroline Free, Louise Keogh, Maria Lewandowska, Patricia Lohr, Rebecca Meiksin, Ona Mccarthy, Clare Murphy, Wendy Norman, Melissa Palmer, Jennifer Reiter, Natasha Salaria, Rachel Scott, Jill Shawe, Sally Sheldon, Geoff Wong

School of Nursing and Midwifery

Background: Significant changes to the nature and context of abortion provision are taking place in the United Kingdom. Empirical evidence is needed to guide efforts to respond to these changes. Objective(s): To provide an evidence base to inform optimal configuration of health services and systems in response to current and future changes in abortion provision in the UK. Design and methods: Observational study comprising five integrated components: (1) a realist review to generate evidence to guide optimal abortion provision and a scoping review of interventions aimed at preparing non-specialist health professionals to provide abortion care and support; (2) country-based case studies identifying transferable …

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Evaluating The Collision-Coalescence Process In Idealized Cloud Convection Using Large-Eddy Simulations With Lagrangian Microphysics, Yangze Ren, Kamal Kant Chandrakar, Fan Yang, Raymond Shaw Apr 2026

Evaluating The Collision-Coalescence Process In Idealized Cloud Convection Using Large-Eddy Simulations With Lagrangian Microphysics, Yangze Ren, Kamal Kant Chandrakar, Fan Yang, Raymond Shaw

Michigan Tech Publications

Drizzle initiation through the collision and coalescence of cloud droplets plays a crucial role in warm cloud precipitation. Recent theoretical studies suggest that the influence of collisional growth on the droplet size distribution can be quantified by a non‐dimensional drizzle number (Dz). Here, large‐eddy simulations with Lagrangian microphysics are employed to evaluate the theory by simulating a tall convection‐cloud chamber under various conditions. Results show that the smaller the Dz, the larger the impact of collisions on the right tail of the droplet size distribution, consistent with the theory. The simulations confirm that the collision rate can be estimated from …

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Breathing Kagome Lattice-Based Nb3i8 Monolayer: Theoretical Insights Into Enhanced Hydrogen Evolution Catalysis, Narender Kumar, Radha Somaiya, Ravindra Pandey, Nacir Tit Apr 2026

Breathing Kagome Lattice-Based Nb3i8 Monolayer: Theoretical Insights Into Enhanced Hydrogen Evolution Catalysis, Narender Kumar, Radha Somaiya, Ravindra Pandey, Nacir Tit

Michigan Tech Publications

Photocatalytic water splitting is a promising strategy for clean energy production, but its efficiency is restricted by poor light absorption, charge recombination, and slow reaction kinetics in photocatalytic materials. To address these challenges, a breathing Kagome lattice-based Nb3I8 monolayer is considered in the present study. Its photocatalytic performance is assessed via descriptors including the effective d-band center, spin-dependent carrier mobility, Gibbs free energy, and exchange-current density. The results based on density functional theory predict that the Nb3I8 monolayer is a type II magnetic semiconductor, with spin-up and spin-down bandgap energies of 1.06 and 1.77 eV, respectively. The application of biaxial …

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Quantum Dot Solar Cells: Background, Progress, And Perspective, Kumar Neupane, Jeff Kabel, Join Uddin, Raksha Dubey, Rojina Ojha, Dongyan Zhang, Yoke Khin Yap Apr 2026

Quantum Dot Solar Cells: Background, Progress, And Perspective, Kumar Neupane, Jeff Kabel, Join Uddin, Raksha Dubey, Rojina Ojha, Dongyan Zhang, Yoke Khin Yap

Michigan Tech Publications

The discovery of quantum dots (QDs) earned a Nobel Prize and has led to widespread applications in research and technology. In this review, we focus on the use of QDs in solid-state solar cells (QDSCs). We begin with an overview of the basic principles of SCs. Then, we discuss how device architecture has developed over recent decades, setting the stage for the final section on fourth-generation solar cells (Perspective section). We also highlight progress in material development, starting with lead- and cadmium-based QDs and progressing to more recent carbon- and perovskite-based QDs. Additionally, we review materials used for electron-transport layers …

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A Model Intercomparison Study To Investigate Mixing Characteristics In Non-Precipitating Stratocumulus Clouds, Fan Yang, Kyoung Ock Choi, Kamal Kant Chandrakar, Fabian Hoffmann, Pei Hou, Steve Krueger, Chunsong Lu, Mikhail Ovchinnikov, Yangze Ren, Shin Ichiro Shima, Peng Wu, Chongzhi Yin, Zeen Zhu, Seong Soo Yum Apr 2026

A Model Intercomparison Study To Investigate Mixing Characteristics In Non-Precipitating Stratocumulus Clouds, Fan Yang, Kyoung Ock Choi, Kamal Kant Chandrakar, Fabian Hoffmann, Pei Hou, Steve Krueger, Chunsong Lu, Mikhail Ovchinnikov, Yangze Ren, Shin Ichiro Shima, Peng Wu, Chongzhi Yin, Zeen Zhu, Seong Soo Yum

Michigan Tech Publications

Recent aircraft observations of marine stratocumulus clouds consistently showed that cloud microphysical relationships vary with altitude, indicating inhomogeneous mixing characteristics near cloud top and homogeneous mixing characteristics in mid-levels of clouds. Here, we conduct model intercomparison of an idealized, non-precipitating stratocumulus cloud to evaluate model consistency and examine whether simulations can reproduce the observed mixing characteristics. The results show that eleven large-eddy simulations with various dynamics and microphysics schemes show good agreement on the thermodynamical, microphysical, and dynamical properties of the stratocumulus-topped boundary layer in a steady state. The inter-model spread in steady-state liquid water path is significantly reduced compared …

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Intelligent Deep Learning-Based Sign Language Translation System, Nada Rasem Shahin Apr 2026

Intelligent Deep Learning-Based Sign Language Translation System, Nada Rasem Shahin

Dissertations

The Deaf and Hard of Hearing (DHH) community uses sign language as a primary means of communication. However, the shortage of sign language interpreters and the existence of hundreds of sign languages limit accessibility and inclusion. Sign Language Machine Translation (SLMT) systems present a promising solution for bridging the communication gap between the DHH and the hearing individuals, supporting inclusive societies. In smart cities, such systems play an essential role in improving the quality of life on a community level. In particular, as the population’s well-being is critical, developing intelligent assistive technologies, such as SLMT systems, is necessary to provide …

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Efficient Energy Management In Networked Microgrids Using Multi-Agent Deep Reinforcement Learning In The Presence Of Uncertainties, Ayodele Benjamin Chukwuyem Apr 2026

Efficient Energy Management In Networked Microgrids Using Multi-Agent Deep Reinforcement Learning In The Presence Of Uncertainties, Ayodele Benjamin Chukwuyem

Dissertations

Microgrid technology is essential in facilitating the transition to smart energy grids in developed countries and mitigating energy poverty in developing countries, particularly in areas where grid extensions are not feasible. Recently, the concept of networked microgrids (NMGs) has garnered tremendous attention due to the plausibility of interactions among interconnected microgrids leading to power networks that are more resilient, reliable, and stable. However, because each microgrid has diverse distributed generation resources (renewables and controllable generators) and each microgrid operator (MO) has different objectives, coordinated energy management is required to satisfy local and system-wide goals under conditions with significant uncertainty. Existing …

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Fully Decentralized Hierarchical Federated Learning At The Edge With Post-Quantum Secure Communication, Tariq Qayyum Apr 2026

Fully Decentralized Hierarchical Federated Learning At The Edge With Post-Quantum Secure Communication, Tariq Qayyum

Dissertations

Federated learning (FL) enables collaborative model training without centralizing raw data, but deploying FL at scale in real edge environments remains challenging because iterative training and aggregation must operate over heterogeneous, resource-constrained, and often mobile devices with time-varying connectivity. Conventional hierarchical federated learning (HFL) partially mitigates communication cost by introducing fog/edge aggregation, yet many designs retain cloud-based global aggregation and cloud-centric coordination. This places wide-area network latency on the critical path of every training round, creates a single point of failure, and limits responsiveness as model sizes and federation scale grow. Moreover, moving coordination and aggregation closer to the edge …

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A Low-Noise And High-Gain Integrated Photoplethysmography Sensor For Continuous Vital Signs Monitoring, Neethu Mohan Apr 2026

A Low-Noise And High-Gain Integrated Photoplethysmography Sensor For Continuous Vital Signs Monitoring, Neethu Mohan

Dissertations

Photoplethysmography (PPG) sensing is an important technology used for measuring health parameters like, heart rate, respiratory rate, blood oxygen saturation, and blood pressure (BP). The PPG sensing is used for individuals who have to periodically monitor their health due to chronic health conditions. The basic requirements of a wearable PPG sensor include non-invasiveness, prolonged battery life, and being userfriendly. These type of sensors have great demand in the healthcare applications and there is a significant rise in the demand of these sensors. The basic objective of these PPG sensors is to make the continuous vital health monitoring easier without the …

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