Digital Commons Network^™

New York City Women’S Experiences With Perinatal Depression Inquiries, Diagnosis, And Treatment Initiation, Caterina Pisciotta

Dissertations, Theses, and Capstone Projects

Perinatal depression represents a significant public health concern, yet many women who experience depression symptoms during the perinatal period (either during pregnancy and/or after birth) do not receive treatment. Initiatives, such as ThriveNYC, were designed to address these gaps by screening and treating perinatal women for maternal depression, integrating screening into routine perinatal care and strengthening pathways to treatment. Using representative survey data collected between 2016 and 2021 via the Center for Disease Control and Prevention’s Pregnancy Risk Assessment Monitoring System (PRAMS), this study examined trends in perinatal depression inquiries (a proxy for “screening”) and postpartum diagnosis, as well as …

Mesoscopic Scaling Of Microwave Transmittance And Disorder-Induced Alignment, Israel Kurtz

Dissertations, Theses, and Capstone Projects

This thesis presents microwave measurements and numerical simulations of wave propagation and transmission through random mesoscopic waveguides. We analyze the scaling of mesoscopic microwave conductance, including departures from Ohm’s law near channel openings, which are frequencies at which new propagating modes enter the system, and the evolution of modal phase alignment within the medium, which leads to the observed diversity of transmission eigenvalues. We extend the transmission matrix formalism to all sample depths using the flux matrix, which relates the flux amplitude within the sample to the incident flux, and decompose the flux at each sample depth into forward- and …

Ultrafast Spectroscopy Of Organic Materials In Strong Light–Matter Interaction And Terahertz Optics, Kamyar Rashidi

Dissertations, Theses, and Capstone Projects

Ultrafast spectroscopy is a powerful tool for investigating phenomena that occur on extremely short timescales and for probing ultrabroadband spectral responses enabled by its ultrashort laser pulses. These capabilities are essential for advancing both the fundamental understanding of light–matter interactions and the development of next-generation optoelectronic technologies. The first part of this thesis investigates the ultrafast dynamics of organic exciton–polaritons and their application to controlling molecular excited-state processes using momentum-resolved pump–probe spectroscopy. A major challenge in these systems is the dark-state problem, where photoexcitation predominantly populates long-lived excitonic reservoir states that obscure the in trinsic dynamics of the hybrid light–matter …

Opportunities For Learning Through Object Exploration During Early Physical Therapy: Physical Therapists’ And Caregivers’ Assistance And Interference Behaviors, Michele Goncalves Maia

Dissertations, Theses, and Capstone Projects

Early physical therapy (EPT) for infants with motor delays has traditionally emphasized motor milestone acquisition, yet growing evidence indicates that motor and cognitive development are fundamentally interconnected. Grounded in embodied cognition and developmental cascade theories, this dissertation conceptualized object exploration as a primary mechanism through which infants learn during EPT and examined how intervention approaches and adult behaviors shape opportunities for object exploration. Using retrospective analyses of video-recorded EPT sessions, two studies investigated how intervention approaches and adult behaviors influence infants' opportunities to learn through object exploration. Study 1 compared object exploration in the START-Play (SP) intervention and Usual Care …

Theoretical Analysis And Performance Interpretation In Thomas Adès’S Traced Overhead, Han Chen

Dissertations, Theses, and Capstone Projects

While many post-tonal composers avoid any inkling of tonality by embracing dissonance or breaking tonal resolutions, Thomas Adès does not shy away from the traditional harmonies that strongly relate to tonal music, such as the circle of fifths, major and minor triads, and the horn-call motif, but adopts several intervallic systems that govern all the notes, including aligned cycles, parsimonious voice leading, and the twelve-tone aggregate.

To examine how Adès uses these intervallic systems to repurpose traditional harmonies, this dissertation presents a close tonal analysis of his solo piano work Traced Overhead. Integrating historical, pianistic, and extramusical contexts, this …

Gene-Environment Interactions In Cardiovascular Aging: Volunteering, Polygenic Risk, And Biomarker Change In European And African Ancestry Populations, Seoyoun Kim, Byeongju Ryu, Erin Ware, Koichiro Shiba, Cal J. Halvorsen

Brown School Faculty Publications

Volunteering has been associated with better cardiovascular health, but whether this association varies by genetic susceptibility to cardiovascular disease remains unclear. This study examined associations between volunteering and cardiovascular biomarkers, assessed associations between biomarker-specific polygenic scores (PGSs) and these outcomes, and tested whether polygenic risk moderated volunteering–biomarker associations among U.S. adults aged 51 years and older.

Synthesis Of Fe-Doped Porous Carbon Catalyst Derived From Coconut Shell Waste Using Ferric Nitrate Nonahydrate (Fe(No3)3.9h2o) As An Iron Precursor, Ilham Lestadi Putra, Sukarni Sukarni, Heru Suryanto

Journal of Mechanical Engineering Science and Technology (JMEST)

Renewable energy from lignocellulosic biomass is a promising alternative to fossil fuels. Coconut shell (CS) waste is a favorable precursor for porous carbon due to its high carbon content, abundance, and non-food nature. However, conventional biochar often has limited surface area and catalytic active sites, hindering its effectiveness as a catalyst. While Fe-based modifications are promising, the use of ferric nitrate-assisted activation of coconut-shell-derived porous carbon remains underexplored. This research focused on developing an Fe-doped porous carbon catalyst from CS via ultrasound-assisted impregnation, followed by activation in a tube furnace. CS biochar was produced through pyrolysis at 550 °C and …

Prune: A Patching Based Repair Framework For Certifiable And Privacy-Robust Unlearning Of Neural Networks, Xuran Li, Jingyi Wang, Xiaohan Yuan, Peixin Zhang

Research Collection School Of Computing and Information Systems

Machine unlearning has emerged as a key mechanism for enabling the “right to be forgotten” in neural network models, allowing the selective removal of specific training data upon request. Existing approaches typically rely on retraining models with the remaining data, which is computationally expensive and difficult to verify, especially when deployed models are distributed or resource-constrained. To address this challenge, our prior conference work introduced PRUNE, a patching-based framework that formulates unlearning as a neural network repair problem. PRUNE achieves targeted forgetting by learning lightweight patch networks that redirect model predictions on the data to be unlearned while preserving performance …

Neural Symphony Of Flow Experience: Evidence For High-Dimensional Metastable Dynamics, Abdelrahman B. M. Eldaly, Kris Zhangguang Kang, Fiona Fui-Hoon Nah, Leanne Lai-Hang Chan, Keng Siau, Xiao Fan Liu, Richard Huskey, Langtao Chen, Tejaswini Yelamanchili, Rene Weber

Research Collection School Of Computing and Information Systems

Flow, an optimal experience characterized by deep immersion and engagement in an activity, has been extensively studied in behavioral research. However, its neural dynamic mechanism remains poorly understood. In a within-subject video gaming experiment, we captured neural activity underlying flow, boredom, and anxiety using a 64-channel electroencephalogram (EEG) system. Compared to boredom and anxiety, flow exhibits the highest global functional connectivity, metastability, and dimensionality of dynamic functional connectivity patterns, suggesting that flow is a highly adaptable process that is supported by high-dimensional neural dynamics. Unlike previous studies that focused on identifying static or localized brain activity, we examine the neural …

Generalized Logit Adjustment: Improved Fine-Tuning By Mitigating Label Bias In Zero-Shot Vision Models, Beier Zhu, Qianru Sun, Xun Yang, Hanwang Zhang

Research Collection School Of Computing and Information Systems

Foundation models like CLIP allow zero-shot transfer on various tasks without additional training data. Yet, the zero-shot performance is less competitive than a fully supervised one. Thus, fine-tuning and ensembling are also commonly adopted to better fit the downstream tasks. However, we argue that such prior work has overlooked the inherent biases in foundation models. Due to the highly imbalanced Web-scale training set, foundation models are inevitably skewed toward frequent semantics, and thus the subsequent fine-tuning or ensembling is still biased. In this study, we systematically examine the biases in foundation models and demonstrate the efficacy of our proposed Generalized …

Smart: When Is It Actually Worth Expanding A Speculative Tree?, Lifu Wang, Pan Zhou

Research Collection School Of Computing and Information Systems

Tree-based speculative decoding accelerates autoregressive generation by verifying a branching tree of draft tokens in a single targetmodel forward pass. However, existing methods prioritize maximizing token-level likelihood or the number of accepted tokens while ignoring a critical “efficiency paradox”: the computational overhead of drafting and verifying big trees can grow super-linearly, particularly at scale. This often leads to negative wall-clock speedup when batch sizes increase or hardware saturation limits are reached. To address this, we propose SMART, a System-aware Marginal Analysis framework for Runtime Tree construction. SMART reformulates tree expansion as a hardware-aware optimization problem that directly maximizes end-toend speedup. …

The Gap Between Fixed And Mobile Internet Accounts In Ecuador (2010-2022): A Linear Regression Model To Characterize And Project Its Evolution, Edison Mauricio Mosquera Simbana, Victor Manuel Tapia Casa, Rommel Eduardo Ronquillo Carangui

Neutrosophic Sets and Systems

Since 2010, internet access in Ecuador has grown in markedly different ways depending on the service modality: whereas mobile accounts multiplied, fixed accounts advanced at a far more restrained pace. This article analyzes the dated observations of fixed and mobile internet accounts published by the Telecommunications Regulation and Control Agency (ARCOTEL) between December 2010 and June 2022. The fixed-account model proved almost perfect (R2 = 0.995); the mobile-account model displayed greater unexplained variability (R2 = 0.901). As a complementary layer, a neutrosophic framework (truth/indeterminacy/falsity) is applied to the consistency of the figures across sources.

Neutrosophic Sets And Systems, Vol. 101, 2026, Proceedings Of The International Conference On Artificial Intelligence, Indeterminacy, And Education, University O'Higgns, Santiago, Chile, Florentin Smarandache

Neutrosophic Sets and Systems

No abstract provided.

The Game Within: An Anthropological Approach To Games And Play, Nehal Maged Mohamed

Theses and Dissertations

This thesis is based on an eighteen-month ethnography of El Ghawasa, an Egyptian play-based organization that designs educational games, tools, and services. Claiming that El Ghawasa, with its ethos of play, seeks to create an alternative to the capitalist corporate structure. Through tracking how this organization navigates ruptures, negotiates constraints, and experiments with different practices and internal restructuring, I explore the possibilities and limitations of El Ghawasa, while attempting to resist absorption by the very system it opposes. I ask: when the rules keep changing (while the logic of the capitalist corporate structure remains the same), and the boundaries of …

Effect Of Multisensory Stimulation On Delirium, Pain, And Anxiety Among Patients Undergoing Major Abdominal Surgery: A Quasi Experimental Study, Nesma Yousef Said Said

Nursing

Background: Major abdominal surgery is frequently associated with postoperative complications, including delirium, pain, and anxiety, which may delay recovery, increase healthcare utilization, and negatively affect patients' overall well-being. Multisensory stimulation has emerged as a promising non-pharmacological intervention that may improve postoperative outcomes by creating a calming and supportive healing environment. Purpose of the study: This study was conducted to examine the effectiveness of multisensory stimulation in reducing delirium, pain, and anxiety among patients undergoing major abdominal surgery Method: A quasi-experimental pretest–posttest design was employed at National Liver institute, Menoufia university, Egypt. A purposive sample of 150 patients (75 intervention group …

“I Really Like Being On The Floor, Because I Spend All The Time In My Chair”: Children With Disabilities’ Experiences Of Physical Activity In School, Katherine Gulliver, Rachel Knight Lozano, Kathrin Paal

School of Law, Humanities and Social Sciences

Children with multiple disabilities often encounter significant barriers to participating in physical activity, impacting not only their physical health but also their overall experience in school. This study places the voices of four children at the centre of their own research, exploring their lived experiences of participating in physical activity in school. Using Clark’s (2017) Mosaic approach, this child-centred participatory study shows how children take part and engage with physical activity as part of their school day. Using videos and photography, child-led tours and ethically sensitive conversations with researchers, children shared a range of opportunities for enjoyment, exploration and interactions …

Light-Wdef: Lightweight Deepfake Evaluation Framework For Efficient And Reliable Visual Detection, Muhammad Yousaf, Sarwar Shah Khan, Babar Shah, Muhammad Shehzad Khan, Muhammad Awais Bacha, Mian Saeed Akbar, Ijaz Ali, Fernando Moreira

All Works

Deepfake technology synthesizes and manipulates digital content to produce artificial videos in which an individual’s identity, facial appearance, or actions are convincingly altered. These forgeries can be highly realistic, posing serious risks to trust in digital media and undermining personal reputation, dignity, and the integrity of public discourse. This paper presents the Lightweight Deepfake Evaluation Framework (Light-wDEF)– a resource-efficient, reproducible framework tailored for large-scale evaluation of visual deepfake detectors on modest hardware. Light-wDEF combines deterministic frame sampling, batched MTCNN face extraction, streaming append-only storage with lazy offset indexing, online Albumentations augmentations, stratified splits with class-aware sampling, and robust training (AdamW, …

Inflation-Differential Rule Versus (De Facto Soft-Peg) Discretion: Exchange-Rate Management Approach In Developing Economies, Behnam Ebrahimi, Mohammad Vaez Barzani Dr.

Bulletin of Monetary Economics and Banking

Many developing and emerging economies officially report a managed floating exchange-rate regime tailored with a fundamental exchange rate management approach, while in practice operating a de facto soft peg, characterized by discretionary, near-constant exchange-rate depreciation aimed at dampening inflation expectations. This discretionary approach—often justified as a pragmatic response to inflationary pressure—produces a hybrid regime that lacks the transparency and credibility emphasized in IMF policy guidance. This study evaluates whether substituting Discretionary Soft-Peg Exchange Rate Management approach with an Inflation-Differential Rule of Exchange Rate Management approach, which links exchange-rate adjustments to the inflation differential between domestic and rest of the world, …

The Nusantara Capital City (Ikn) Relocation: Autocratic Legalism And The Marginalization Of Local Communities, Imam Syafi'i, Dian Aulia

The Indonesian Journal of Socio-Legal Studies

The first phase (2022–2024) of the Nusantara Capital City (IKN) relocation prioritizes the construction of the city's physical infrastructure under the “Nusa Rimba Raya” concept. During this phase, the massive development of supporting infrastructure, including government buildings, official residences, toll roads, ports, and the VVIP airport, has driven increased demand for materials and land, impacting areas beyond the delineation of IKN. However, the power-driven approach in the capital relocation policy has led to socio-ecological injustices for indigenous and local communities by disregarding meaningful public participation and environmental sustainability. Land acquisition through the Land Bank (Bank Tanah), which prioritizes investment, along …

Application Of Tailings From Aluminium, Copper, And Iron Extraction As Asphalt Mixture Materials: A Review, Daniel Oguntayo, Temitope Awolusi, Samuel Gboyega Arowolo, Paul Terkumbur Adeke

Research outputs 2022 to 2026

The increasing global demand for pavement infrastructure has intensified the consumption of non-renewable construction materials, particularly natural aggregates and soils, raising significant environmental and resource sustainability concerns. In response, there is a growing need to explore alternative materials that can reduce reliance on these finite resources. Mine tailings, generated in large volumes from mining operations, have emerged as a promising substitute due to their potential to enhance asphalt concrete performance while mitigating environmental impacts associated with their disposal. This study presents a comprehensive review of the application of selected mine tailings in asphalt mixtures. It critically examines their physicochemical properties …

Physical And Rheological Properties Of Bitumen Modified With Biochar, Nuha S. Mashaan, Suneth Sirinatha, Chathurika Dassanayake

Research outputs 2022 to 2026

The integration of biochar into asphalt binders represents a significant advancement toward global sustainability in pavement engineering. Produced through biomass pyrolysis, biochar enables the valorization of agricultural and industrial waste while reducing dependence on petroleum-derived binder constituents. This review critically synthesizes current research regarding the impact of biochar on the physical, rheological, and aging performance of bitumen. The evidence consistently shows that biochar improves binder stiffness, raises softening points, and strengthens rutting resistance at elevated temperatures, largely due to its porous microstructure and high carbon content. Biochar-modified binders also exhibit enhanced aging resistance through the adsorption of volatile light fractions. …

Acute Hamstring Fatigue In Elite Male Sixes Lacrosse Players Following A Single Competitive Match, Nicholas Joel Ripley, Jack Fahey, Matthew W. Collier, Christopher Bramah

Research outputs 2022 to 2026

Background/Objectives: Decreases in hamstring isometric strength have been observed post-competition, but research has currently focused only on soccer players. Therefore, the purpose of the present study was to observe if acute reductions in isometric hamstring force production in elite male lacrosse players occur post-match.

Methods: Peak isometric force measurements were collected from ten male outfielders from the British Lacrosse squad (24.6 ± 2.3 years, 1.80 ± 0.08 m, 86.3 ± 4.5 kg) using force plates. The 90:90 isometric assessment was conducted before and after a single sixes lacrosse match to observe changes in hamstring force production. Bayesian paired sample’s t-test …

Study Protocol Of The Endobronchial Valves For Pneumothorax To Reduce Admission Time (Evaporate) Pilot Multicentre Randomised Clinical Trial, Nai-Chien Huan, Niranjan Ananda Setty, Ai Ling Tan, Dhaval Thakkar, Taha Huseini, Elaine Yap, Jonathan Williamson, Phan Nguyen, Paul Lilburn, Matthew Salamonsen, Arash Badiei, Matthew Ing, Sanjeevan Muruganandan, Bapti Roy, Brent Gardiner, Lonny B. Yarmus, Steven P. Walker, Y. C. Gary Lee

Research outputs 2022 to 2026

Background: Pneumothorax with persistent air leak (PAL) is a debilitating condition. Patients with PAL often require prolonged chest drainage, with associated complications, such as, hospital-acquired infections, thromboembolism, and deconditioning. Endobronchial valves (EBVs) are an approved bronchoscopic treatment for PAL and may allow earlier chest tube removal and hospital discharge. Current evidence supporting the use of EBV is limited to case series and uncontrolled studies. EBVs are usually used as a last resort when other treatments failed. Whether early referral for EBV placement is feasible and can reduce hospital length of stay in patients with pneumothorax and PAL has not been …

Artificial Intelligence (Ai) In Home-Care And Community Nursing: A Scoping Review, Haiying Wang, Grace Y. Wang, Tao Wang, Lori Delaney, Jonathan Bayuo, Mengyuan Li, Jing Yu Tan

Research outputs 2022 to 2026

Background/Objectives: Artificial intelligence (AI) is increasingly being applied across healthcare, but empirical evidence on its use in home-care and community nursing remains fragmented across technologies, clinical contexts, nursing roles, and stages of implementation. This scoping review aimed to map current AI applications in home-care and community nursing and synthesize reported implementation experiences, benefits, challenges, and future considerations.

Methods: Guided by Joanna Briggs Institute methodology and reported according to PRISMA-ScR, eight databases and grey literature via ProQuest were searched for English-language empirical studies published from 1 January 2020 to 14 May 2026. Retrieved records were screened independently by two reviewers, with …

Comparing User Experiences Of Teleportation, Slide-Walk, And Walk-In-Place Locomotion Across Two Virtual Reality Games, Shane L. Rogers, Brett Ryder, Stephen Palmisano

Research outputs 2022 to 2026

Virtual reality (VR) locomotion methods differ substantially in their implications for usability, presence, and comfort. Although previous research has compared a range of locomotion techniques, relatively little attention has been given to whether locomotion experiences generalise across different VR experiences. The present study compared user experiences of three locomotion methods (teleportation, slide-walk, and walk-in-place) across two VR applications (Nature Treks VR, an exploration-focused environment, and Ancient Dungeon VR, an action-oriented game). Sixty-three participants were recruited, with analyses based on the forty-five participants who completed all study conditions. During each 10-min condition (comprising a 2-min familiarisation period followed by an 8-min …

Association Of The Pan-Immune-Inflammation Value-To-Albumin Ratio As A Novel Cardiovascular Disease Predictor In Type 2 Diabetes: A Prospective Cohort Study, Fangyuan Liu, Xinghua Yang, Bo Gao, Yanxia Luo, Lixin Tao, Xiuhua Guo

Research outputs 2022 to 2026

Objectives: Individuals with type 2 diabetes (T2D) remain at high cardiovascular disease (CVD) risk. The pan-immune-inflammation value (PIV) integrates circulating neutrophils, monocytes, platelets, and lymphocytes but does not capture albumin-related nutritional and inflammatory reserve. We investigated associations between the PIV-to-albumin ratio (PIVA) and incident CVD, cardiovascular mortality, and disease progression in individuals with T2D.

Methods: This prospective study included 15,355 UK Biobank participants with T2D and no baseline CVD. PIVA was calculated from peripheral blood cell counts and serum albumin and was natural log-transformed. Fine–Gray competing-risk and cause-specific Cox models were used to evaluate incident CVD and cardiovascular mortality. Multi-state …

Understanding Barriers To Systems Change Among Regional Western Australian Food Security Initiative Leaders, Isabelle Chiera, Melissa Stoneham, Jess Doe, Amanda Devine, Stephanie L. Godrich

Research outputs 2022 to 2026

Food security (FS) is a complex, 'wicked' issue involving regular and reliable physical, social, and economic access to food. People living in geographically isolated areas are disproportionately affected by FS challenges and addressing these issues demands a systems-based approach. The Food Community project has implemented an adapted Systemic Innovation Lab (SIL) approach to support FS initiatives operating across rural, regional, and remote Western Australia to enhance their effectiveness. This paper aimed to identify what FS initiative leaders perceive as barriers to delivering their services, in relation to undertaking activities that align with the 36 systems change characteristics embedded within the …

Social Prescribing For People In Vulnerable Situations In Europe: Protocol For A Process Evaluation Of An Rct In Eight Countries, Kerryn Husk, Elizabeth Gilmour, Stephanie Tierney, Debra Westlake, Anuschka Arni, Hendrik Napierala, Farhad Rezvani, Marius Dierks, Wolfram J. Herrmann

Peninsula Medical School

Objective Social prescribing is a pathway that connects individuals to non-clinical services. It supports and addresses social needs, such as those related to loneliness, housing instability and mental health. Social Prescribing Europe (SP-EU), a European Union funded project, seeks to co-create an adaptation of the social prescribing pathway based on the needs of the following target groups: LGBTIQ+ people, refugees and first-generation immigrants, older people living alone. This adapted social prescribing pathway will be tested in a pragmatic randomised controlled trial (RCT) in ten hubs, covering eight countries, across Europe. The aim of this process evaluation is to explore the …

Vicarious Trauma: The Psychological Impact On Counsellors And Psychotherapists Working With Survivors Of Sexual Abuse., Deborah Down, Alison Bacon

School of Psychology

Background: Vicarious trauma (VT), the psychological distress that occurs from exposure to the trauma of others, is prevalent among therapists, but has not previously been explored in those working specifically with survivors of sexual trauma. This qualitative study explores counsellors‘ and psychotherapists‘ experiences of VT when working with survivors of sexual abuse. Method: Semi-structured interviews uncovered complex emotional and psychological impacts, highlighting how exposure to traumatic sexual abuse narratives can affect counsellors‘ and psychotherapists‘ wellbeing, and professional and personal identity. A reflexive thematic analysis was conducted. Results: Four key themes were identified. (1) The Impact of VT reveals the emotional …

Discomfort Avoidance And Desire For Normality Are Decision-Making Drivers Of Footwear Choice In Underserved Communities At Risk Of Diabetic Foot Ulcer, Krithika Anil, Neeraj Sharma, Sonal Patel, Jess Bailey, Catherine Smith, Sally Abey, Kayce Allcock, Richard Collings, Joanne Paton

School of Health Professions

BackgroundDiabetes-related foot ulceration (DFU) is a serious complication that can lead to lower limb amputation or death. Custom-made footwear is a key preventative strategy, yet adherence to use is often low. The factors influencing decision-making for footwear use remain unclear, particularly among underserved groups such as people from low socioeconomic and South Asian backgrounds. This study aimed to identify the psychological mechanisms underlying footwear choice and adherence in people with diabetes from low socioeconomic and South Asian populations.MethodsThis study used a qualitative approach conducted in two parts. Part 1 explored footwear-related experiences using one-to-one interviews informed by the COM-B model …