Digital Commons Network^™

Intelligent Method Of Dynamic Control For A Class Of Stochastic Nonlinear Systems, Isamidin Khakimovich Siddikov, Davronbek Abdalimovich Khalmatov, Gulchekhra Rakhimjanovna Alimova, Dilnoza Rakhmanovna Khushnazarova

Chemical Technology, Control and Management

The paper considered the problems of researching the stabilisation system and backstepping control of stochastic nonlinear systems. The characteristics of stochastic nonlinear dynamic control systems are random signals with normal lawful distribution, which significantly complicates task control. In stochastic control, it is necessary to determine the trajectories of the control variables in order to achieve the desired control objective at minimum cost. Since the mathematical equations of stochastic nonlinear systems are not always constant, not every model-based controller can be accurate. Therefore, in this work, a neuro-fuzzy network is used to evaluate the parameters of the control system with backstepping, …

Reinforcement Learning In A Virtual World: A Study Of Ppo And Sac Within Unity Ml Agents, Rufat Mammadzada

Chemical Technology, Control and Management

This study explores the use of Unity3D as a versatile platform for developing, training, and evaluating intelligent agents through reinforcement learning. Leveraging the Unity ML-Agents Toolkit, a dynamic 3D environment was created to examine agent learning behavior using two advanced algorithms: Proximal Policy Optimization (PPO) and Soft Actor-Critic (SAC). The simulation environment consisted of navigable terrain bounded by red borders, with collectible blue balls serving as rewards and a purple cube representing the agent. A carefully designed reward system was implemented to encourage goal-directed behavior and penalize inefficiency, while time constraints introduced an additional challenge requiring both precision and speed. …

Possibilities Of Digitizing And Applying Artificial Intelligence To National Occupational Classification (Noc-2025) In Uzbekistan, Shohrux Nurali O‘G‘Li Narzullayev

Chemical Technology, Control and Management

This article examines the process of digitizing National Occupational Classification (NOC-2025) in Uzbekistan, developed on the basis of the International Standard Classification of Occupations (ISCO-08), and the possibilities of applying artificial intelligence technologies to it. Although this classification exists today in a national form, and its digitization and the introduction of artificial intelligence elements to it based on modern technologies remain a pressing issue. In order to digitize the classification, international systems such as the International Standard Classification of Occupations (ISCO-08, ILO), European Skills, Competences, Qualifications and Occupations (ESCO), Occupational Information Network (O*NET, USA) and National Occupational Classification (NOC, Canada) …

Spatio-Temporal Gcn With Softmax Classifier For Skeleton-Based Human Action Recognition, Kabul Khudaybergenov, Avazjon Marakhimov, Zahriddin Muminov

Chemical Technology, Control and Management

Skeleton-based human action recognition is an important research area with many practical applications. Most existing methods rely on single representations of skeletal sequences, which cannot totally obtain all the complex features of human movements. This paper presents LFHAR (Latent Features for Human Action Recognition), a new framework that uses multiple spatio-temporal latent representations to improve the extraction of action features. Our method captures how skeletal poses change over time and combines motion information from both individual joints and connected body parts. The proposed approach applies graph-based processing to each skeleton frame in a sequence, then arranges the resulting graph features …

Living Longer, Working Longer, Michele Dinman, Cal J. Halvorsen

Harvey A. Friedman Center for Aging

According to the Pew Research Center, nearly one-in-five Americans ages 65 and older (19%) were employed in 2023, a rate nearly twice that from 35 years ago. They’re also working more hours, on average, than in the recent past. In fact, more than three-in-five older workers (62%) work full time, an increase from the 47% working full time in 1987. Older workers today are also more educated and are more likely to be receiving employer-sponsored benefits, such as retirement savings plans and health insurance, than in earlier decades. While only 4% of the entire labor force was made up of …

Redneck Revenant By David R. Slayton. Reviewed By Phillip Fitzsimmons, Phillip Fitzsimmons

Mythprint Book Reviews

No abstract provided.

Smart Learning In An Ai-Driven World, Joseph Rene Corbeil, Maria Elena Corbeil

Teaching and Learning Faculty Publications

SMART learning is an approach that combines sustainability, motivation, adaptability, results-oriented practices, and technology enablement. AI-driven SMART learning prioritizes flexibility, cost-efficiency, and knowledge retention, equipping teachers and students with the tools to adapt to an ever-evolving world. By envisioning AI's role in fostering SMART learning attributes, we pave the way for a future where technology and education intertwine to empower learners and redefine teaching practices.

Love, Community, Errantry: Relational Approaches Toward Mathematical Mistakes, Melissa Adams Corral, Romina S. Peña-Pincheira, José Martínez Hinestroza

Teaching and Learning Faculty Publications

In this article we explore ways of approaching what educators and researchers perceive as mistakes that are consistent with views of mathematics that tolerate ambiguity, contradiction, and multiple possible truths. The approaches we describe draw on works within and beyond the field of mathematics education and detail theories from biologist Humberto Maturana, community organizers Bob Moses and Ella Baker, and poet-philosopher Edouard Glissant. These alternative theoretical perspectives are distinctly relational in their approach. They can build on the field’s current conceptualizations of pedagogical responses to errors in ways that attend to calls for broadening what it means to do mathematics …

Delayed Presentation Of A Retained Colonic Segment In A Child With Intestinal Failure On Teduglutide, Rachel C Bordelon, Sarah J Varalla, Varaha S Tammisetti, Mohamed M Shahin, Amanda Tchakarov, Essam Imseis, Allison L Speer

Faculty, Staff and Student Publications

Teduglutide is a glucagon-like peptide 2 (GLP-2) analogue that was approved by the United States Food and Drug Administration for the treatment of pediatric (>1 year) intestinal failure due to short bowel syndrome in 2019. GLP-2 analogues promote rapid intestinal adaptation, increasing the absorptive capacity of residual intestine after surgical resection to aid the achievement of enteral autonomy or reduce parenteral nutrition requirements. Despite relatively few reported side effects, there is a theoretical risk of proliferative complications. Here we present an intriguing case of a pediatric patient found to have a decade-long retained, discontinuous segment of colon from a …

The Mythology Of Polymyositis, Suur Biliciler, Tahseen Mozaffar

Faculty, Staff and Student Publications

Polymyositis (PM) has been in the diagnostic armamentarium in medicine since the mid-nineteenth century. Medicine training puts a heavy emphasis on this diagnosis, and anyone with proximal muscle weakness with elevated serum creatinine kinase is assumed to be PM and a number of patients were rendered this diagnosis without additional testing. This article addresses the historical aspects of the diagnosis of PM and its evolution. We review this literature that addresses the rarity of this diagnosis and rightly puts in perspective in terms of its occurrence in relation to other inflammatory myositides.

Innovations In Thrombectomy Training: A Systematic Review And Expert Recommendations From The Society Of Vascular And Interventional Neurology-Mission Thrombectomy Initiative, Fawaz Al-Mufti, Mohamed Elfil, Abdallah Abbas, Haneen Sabet, Hazem S Ghaith, Ariel Sacknovitz, Ankita Jain, Victor Urrutia, Nabeel Herial, Gabor Toth, Mohamad El-Ghanem, Krishna Amuluru, Viktor C Szeder, Jonathan Crowe, Karol Budohoski, Zurab Nadareishvili, Kaustubh Limaye, Fazeel Siddiqui, Boris Pabon, Ossama Yassin Mansour, Atilla Ozcan Ozdemir, Houman Khosravani, Hamza Shaikh, Nishita Singh, Hesham Masoud, Sushanth R Aroor, Shashvat Desai, Santiago Ortega-Gutierrez, Fredrick Echols, Thanh N Nguyen, Pankajavalli Ramakrishnan, Priyank Khandelwal, Dileep R Yavagal, Kaiz Asif

Faculty, Staff and Student Publications

Background: Mechanical thrombectomy is a critical intervention for patients with acute ischemic stroke with large vessel occlusion. However, significant barriers remain in its widespread implementation, particularly in low- to middle-income countries, including a shortage of trained physicians and limited access to advanced medical technologies. This systematic review and meta-analysis aimed to comprehensively evaluate current mechanical thrombectomy training methodologies and assess their effectiveness in improving procedural skills among neurointerventional teams.

Methods: We conducted a systematic review following Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines, searching PubMed, Scopus, and Web of Science. Eight studies were included, with 3 studies eligible …

Multiomics Reveal Plasma Constituents Associated With Thrombosis Among Trauma Patients Who Do Not Respond To Enoxaparin, Ian S Lacroix, Monika Dzieciatkowska, Francesca Cendali, Kelly Sanders, Charles E Wade, Bryan A Cotton, Mitchell J Cohen, Angelo D'Alessandro, Kirk Hansen, Jessica C Cardenas

Faculty, Staff and Student Publications

Venous thromboembolism (VTE) is among the most common complications affecting patients with severe injuries. Although enoxaparin resistance is common, predicting which patients among this subgroup will develop VTE remains a clinical challenge. The goal of this study was to use multiomics to identify plasma constituents associated with VTE development among trauma patients exhibiting poor responses to enoxaparin. We conducted a secondary analysis of trauma patients at high risk of VTE based on injury characteristics. Plasma was collected daily for the first 8 hospital days. Patients who never responded to enoxaparin were defined as not achieving an anti-factor Xa (FXa) level …

Sweet Syndrome Successfully Treated With Upadacitinib, Valeria Duque-Clavijo, Hung Q Doan, John A Das, Stephen K Tyring

Faculty, Staff and Student Publications

No abstract provided.

Depression Polygenicity And Disease Activity And Disability Worsening In Multiple Sclerosis, Ali Manouchehrinia, Kathryn C Fitzgerald, Amber Salter, Ruth Ann Marrie, Lars Alfredsson, Charles N Bernstein, James M Bolton, Gary Cutter, John D Fisk, Lesley A Graff, Carol A Hitchon, Jan Hillert, Ingrid Kockum, Yi Lu, Fred D Lublin, Kyla Mckay, Tomas Olsson, Scott Patten, Amit Patki, Hayley Riel, Klementy Shchetynsky, Pernilla Stridh, Hemant K Tiwari, Jerry S Wolinsky, Kaarina Kowalec

Faculty, Staff and Student Publications

Objective: A better understanding of factors associated with multiple sclerosis (MS) disease activity and disability is needed. Given the strong link between comorbid depression and MS disease activity and disability, we aimed to determine whether the depression genetic burden, as modelled using its polygenic score, is associated with MS disease activity and disability worsening.

Methods: In this cohort study, we used samples from neurologist-defined adult people with MS (PwMS) followed in clinical care or during a clinical trial from existing cohorts: Canada, the United States (US), and Sweden with extensive longitudinal phenotypes. We computed the depression polygenic score (PGS) and …

Characteristics And Outcomes Associated With Multiple Triage Visits Among Patients With Suspected Preterm Labor Or Preterm Premature Rupture Of Membranes, Jameaka L Hamilton, Paula L Mcgee, George R Saade, Rebecca G Clifton, Michael W Varner, Alan T N Tita, Monica Longo, Edward F Bell, Barbara J Stoll, Donna Allard, Ashley Salazar, John M Thorp, Uma M Reddy, Maged M Costantine, Emily S Miller, Dwight J Rouse, Hyagriv N Simhan, Jennifer L Bailit, Lorraine Dugoff, George A Macones, Baha M Sibai

Faculty, Staff and Student Publications

Background: Hospital-based obstetrical triage units frequently serve as an extension to outpatient care. Evaluation of the burden of preterm birth (PTB) typically focuses on the delivery and neonatal periods, while antepartum health care utilization related to risk of PTB is seldom reported.

Objective: To identify the characteristics and outcomes associated with multiple triage visits among patients with suspected preterm labor (PTL) or preterm premature rupture of membranes (pPROM).

Study design: Secondary analysis of a retrospective cohort study of all triage visits from 20 0/7 through 34 6/7 weeks gestation on randomly selected dates in 2019 at 34 hospitals across the …

Transforming Preterm Care: The Power Of Small Baby Guidelines In Enhancing Outcomes, Leeann Pavlek, Debra Armbruster, Cecilie Halling, Kaitlyn Hipp, Maria Jebbia, Susan Lopata, Matthew Rysavy, Rebecca Saliga, Sheria Wilson, Claire Beaullieu

Faculty, Staff and Student Publications

As survival rates of extremely preterm (EPT) infants continue to improve, focus has shifted to reduce morbidity and complications in these vulnerable patients. Management of EPT infants presents significant clinical, logistical, and sometimes ethical challenges. Outcomes across centers are highly variable and strongly influenced by the care provided in the early neonatal period. Standardized guidelines, based on published literature and center-specific experiences, play an important role in improving outcomes for EPT infants. Multidisciplinary guidelines provide a framework for clinical management and support a consistent care approach. Guidelines can improve care throughout the entire neonatal intensive care unit (NICU) course, beginning …

The Distal Acromial Tip Fusion: A Novel Procedure To Mitigate Acromial Stress Fractures In High-Risk Patients Undergoing Reverse Shoulder Arthroplasty, Trevor G Simcox, Jeffrey Dela Cruz, Gennaro Dellicarpini, Wojciech K Dzieza, Itaru Kawashima, Kevin W Farmer, Jonathan O Wright, Thomas W Wright, Joseph J King

Faculty, Staff and Student Publications

Acromion and scapular spine fractures (ASFs) pose significant challenges in the management of patients undergoing reverse total shoulder arthroplasty and there is a pressing need for effective preventive measures. Current predictive factors for ASF include female sex, osteoporosis, older age, and anatomical considerations such as glenoid medialization and acromial morphology. However, surgical options to mitigate ASF risk are limited. In this study, we propose a novel technique: incorporation of distal acromial tip fusion (DATF) during primary reverse total shoulder arthroplasty procedures. DATF involves bony fusion between the undersurface of the anterolateral acromion and the region where the superior rim of …

Prevalence Of Obesity With Confirmed Excess Adiposity In Us Children And Adolescents, Alexandra B Palmer, Kyung Hyun Lee, Rashedeh Roshani, Elizabeth Frankel, Miryoung Lee, Mohammad Y Anwar, Heather M Highland, Kristin L Young, Mariaelisa Graff, Joseph B Mccormick, Susan P Fisher-Hoch, Joyce P Samuel, Jennifer E Below, Kari E North, Penny Gordon-Larsen

Faculty, Staff and Student Publications

No abstract provided.

Functional Ability Profiles In Beta-Propeller Protein-Associated Neurodegeneration (Bpan), Francesco Gavazzi, Samuel R Pierce, Vanessa Smith, Eric Yang, Julie Skorup, Kristy Pucci, Emma Kotes, Allan M Glanzman, Stacy V Cusack, Todd Levy, Holly Dubbs, Emma Wiener, Sarah Woidill, Joseph Vithayathil, Abbas Jawad, Nivedita Thakur, Laura A Adang

Faculty, Staff and Student Publications

Background: Beta-propeller Protein-Associated Neurodegeneration (BPAN) is a rare neurodevelopmental degenerative disorder caused by pathogenic variants in WDR45 leading to brain iron accumulation. Its rarity and complex clinical course make it difficult to select appropriate clinical outcome assessments (COAs). This study evaluates established COAs for feasibility and effectiveness in capturing BPAN's functional ability profiles exploring cognitive, motor, and behavioral features.

Methods: We performed an observational study. Children were recruited as part of the Myelin Disorders Biorepository Project at the Children's Hospital of Philadelphia. We administered the Gross Motor Function Measure-88 (GMFM-88), the Leiter International Performance Scale (Leiter-3), and the Vineland Adaptive …

Priming With Transcutaneous Spinal Direct Current Stimulation Followed By Robotic Exoskeleton Gait Training In Individuals With Spinal Cord Injury: A Case Series, Marcie Kern, Catherine Velasquez-Ignacio, Taimoor Afzal, Shih-Chiao Tseng, Gerard E Francisco, Shuo-Hsiu Chang

Faculty, Staff and Student Publications

Objectives: To investigate the safety and feasibility of repeated transcutaneous spinal direct current stimulation (tsDCS) as priming strategy during exoskeleton-assisted locomotor training in individuals with SCI and evaluate potential neurophysiologic and functional gait changes.

Study design: Case series experimental design.

Setting: Research laboratory at a post-acute rehabilitation hospital.

Participants: Four participants with chronic incomplete SCI.

Interventions: Four participants with chronic incomplete SCI received three weeks of training consisting of two types of interventions after baseline (A): 20-minute tsDCS (anode or cathode) applied over the spinous processes of T10 followed by 20-minute exoskeleton-assisted locomotor training (B, B1, B2) and 20-minute exoskeleton-assisted …

From Reflex Reaction To Rational Action-Personalizing Surgical Antibiotic Prophylaxis, Renee W Green, William D Rieger, Lillian S Kao

Faculty, Staff and Student Publications

No abstract provided.

Virtual Reality In Esl Teaching And Learning In A Hybrid Learning Environment In The United Arab Emirates, Basma Abdulla Abri

Dissertations

This study examines the impact of Virtual Reality (VR) on the oral proficiency of EFL learners in the UAE context, with exploring the instructors and students’ perspectives on using VR as a language learning tool. The study involved 44 Emirati higher education students enrolled in an English Communications Program divided into a control group using traditional methods, and an experimental group using VR tools for communicative activities. Data collection employed mixed-methods research through questionnaire surveys involving college students and interviews with EFL instructors over a ten-week period. According to the findings, the experimental group demonstrated higher oral proficiency than the …

Enhanced The Simultaneous Recovery/Extraction Of Combined Heavy Metals Of Lead And Vanadium From Synthetic Wastewater Using An Emulsion Liquid Membrane (Elm) With Nanoparticles And Ionic Liquid, Qusay Al-Obaidi, Nora Yehia Selem, Oumaima Karai, Kaoutar Benabderazak, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

Recovery/extracting of a combination of lead (Pb(II)) and vanadium (V(V)) ions from wastewater has been enhanced by an emulsion liquid membrane with the presence of magnesium oxide (MgO) or aluminum oxide (Al₂O₃) nanoparticles (20–50 nm size range) in the internal/stripping phase (W1) and ionic liquid ([OMIM] PF6) in the organic/oil phase (O). The study found that the recovery/extraction batch time was shortened, enhancing emulsion extraction efficiency and stability. Furthermore, the study outcomes extend the ELM separation techniques to industrial-scale pollutant recovery/extraction applications, especially heavy metal ions, from industrial effluent. The percentage of Pb(II) recovery/extraction was increased …

Reading The Word And The World: Overstanding Literacy In Aboriginal And Chinese Classrooms, Gui Ying Annie Yang-Heim

Faculty Publications - College of Education

This qualitative comparative case study examines how culturally grounded philosophies of education shape the teaching and learning of reading in two cross-cultural contexts—an Aboriginal Australian classroom and urban Chinese elementary schools. Drawing on interpretive and reflexive methodologies, it investigates how Aboriginal and Confucian epistemologies influence literacy practices and how these practices align with or resist dominant, decontextualized models of reading instruction. Data sources include classroom observations, reading assessments, teacher interviews, and researcher reflections. Conceptually framed by Gadamer’s hermeneutics, Bourdieu’s theory of cultural capital, Habermas’s typology of knowledge, and the Caribbean concept of overstanding, this research finds that Aboriginal literacy is …

Interface And Mechanical Properties Of 1d And 1d-2d Carbon Nanomaterials In Copper Matrix, Abigail L. Eaton, Arun K. Nair

Mechanical Engineering Faculty Publications and Presentations

Low-dimensional carbon nanomaterials have unique electron density distributions which warrant their classification as 1D and 2D, and they are useful for a wide variety of nanocomposite applications. This group includes 1D carbyne, which has high stiffness, and a 1D-2D hybrid composed of carbyne and a highly elastic cyclo[18] carbon ring (2D). We use density functional theory and molecular dynamics methods to study the interface properties of carbyne and the hybrid on Cu (111) surface and determine the mechanical properties of nanocomposites comprised of the nanomaterials as a fiber in Cu matrix at varying temperatures. We predict that on Cu (111) …

Technology Discontinuance: A Systematic Literature Review And Research Agenda, Birgit Altrichter, Sabine Benoit

Research Collection Lee Kong Chian School Of Business

Technology discontinuance by users who quit digital services such as social media or lose interest in their devices after a few weeks is a common phenomenon. Yet it has received little research attention; the few studies that address it are scattered across disciplines. Research into customer churn is more prevalent, but it implies switching providers rather than halting usage altogether. By moving beyond discipline-based knowledge boundaries and conducting a systematic literature review, the current article proposes a technology discontinuance framework, which details seven technology discontinuance types (overuse, overload, proficiency, disenchantment, social, circumstantial, and solution) and their drivers. For example, guilt …

The Power And Peril Of First Offers In Negotiations: A Conceptual, Meta-Analytic, And Experimental Synthesis, H.M. Petrowsky, L. Boecker, Y.A. Escher, M.L. Frech, M. Friese, A.D. Galinsky, B. Gunia, A.J. Lee, Michael Schaerer, M. Schweinsberg, M. Soliman, R. Swaab, E.S. Troll, M. Weber, D.D. Loschelder

Research Collection Lee Kong Chian School Of Business

Is it advantageous to make the first offer and to do so ambitiously? Although initial studies suggested clear advantages across cultures and contexts, recent findings have challenged the robustness of this first-mover advantage. A preregistered meta-analysis of 374 effects from 90 studies (Study 1; N = 16,334) revealed three beneficial effects of making the first offer: (a) a general first-mover advantage (g = 0.42, m = 80), (b) a positive correlation between first-offer magnitude and agreement value (r = 0.62, g = 1.56, m = 53), and (c) an advantage of ambitious (vs. moderate) first offers on agreement value (g …

Internet Of Things In Intralogistics: Applications And Emerging Research, Rene De Koster, Debjit Roy, Yun Fong Lim, Subodha Kumar

Research Collection Lee Kong Chian School Of Business

Managing the performance of intralogistics operations, that is logistics operations within facilities such as manufacturing plants, order fulfillment warehouses, ports and terminals, and retail stores, is critical in fulfilling customer expectations. Traditional decision-making for intralogistics operations is based on historical data, typically collected over long-range intervals with significant processing delays. However, nowadays, Internet of Things (IoT) applications are used to gather detailed real-time data to make dynamic decisions. These new data sources provide challenges and opportunities for operations management. We provide an overview of prominent IoT technologies in four domains: manufacturing, warehousing, ports and terminals, retail, and other emerging areas. …

Managing The Personalization Paradox: Lessons From Spotify’S Ai Dj, Anirban Mukherjee, Hannah H. Chang, Jonathan Wibowo

Research Collection Lee Kong Chian School Of Business

This case study uses Spotify’s AI DJ to examine the “personalization paradox,” where product features designed to deepen user connection can instead cause alienation. An analysis of over 1,400 user comments identifies three core frictions: a perceived loss of user agency, mismanaged expectations for the human-like AI, and a scalability bottleneck that led to repetitive content. Students are placed in the role of a product manager tasked with developing a prioritized roadmap to address these issues, forcing them to grapple with the critical trade-offs between technological capability and user psychology.

Assessing Digital Citizenship Among Students And Technology Competency Of Teachers, Mary Anthony C. Sieras

Ateneo Institute for The Science and Art of Learning and Teaching

Digital citizenship and technology competency are vital for effective teaching and learning in today’s technology-driven educational environment (Ribble, 2011). Despite widespread technology use, challenges persist regarding students’ responsible and ethical use of digital tools, highlighting the need for improved digital citizenship education (Ribble & Bailey, 2004). Teachers’ proficiency in integrating technology is key to fostering students’ positive digital practices (Department of Education, 2017). This study aimed to assess the digital citizenship levels of junior high school students and the technology competence of their teachers. Grounded in Mike Ribble’s nine elements of digital citizenship and the Philippine Professional Standards for Teachers’ …