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Modern Home Cooking Practices, The Role Of New Media, And Implications For Culinary Medicine: A Qualitative Study Among Mothers With Low Income, Debbe Thompson Feb 2026

Modern Home Cooking Practices, The Role Of New Media, And Implications For Culinary Medicine: A Qualitative Study Among Mothers With Low Income, Debbe Thompson

Faculty, Staff and Student Publications

Culinary medicine offers a practical, experiential approach to nutrition education, but in-person programs are resources intensive. Digital interventions may offer a scalable, acceptable approach to culinary medicine in populations that are at increased risk for poor diet, such as parents with low income. The purpose of this study was to examine modern home cooking behavior and the role of new media from the perspective of parents with low income and identify implications for culinary medicine research. Twenty parents from 6- to 11-year-old children that qualify for free/reduced school lunch programs completed a survey and interview examining online cooking information seeking …


Prism-Xqtl: Pleiotropic Relationships Integrated With System-Level Multiomic Qtl Analysis For Causal Genes And Molecular Mediators In Alzheimer’S Disease Feb 2026

Prism-Xqtl: Pleiotropic Relationships Integrated With System-Level Multiomic Qtl Analysis For Causal Genes And Molecular Mediators In Alzheimer’S Disease

Faculty, Staff and Student Publications

Introduction: Most Alzheimer's disease (AD) risk variants identified by genome-wide association studies (GWAS) reside in noncoding regions, complicating causal interpretation.

Methods: We developed PRISM-xQTL (Pleiotropic Relationships Integrated with System-level Multiomic QTL), integrating pleiotropy, co-localization, Mendelian randomization, and mediation analyses across multiomic quantitative trait loci (QTLs; expression QTL [eQTL], methylation QTL [meQTL], splicing QTL [sQTL], proteomic [pQTL], single-cell [sc-eQTL]). Seventy pleiotropic single-nucleotide polymorphisms (SNPs) shared between AD and 11 immune disorders were analyzed. AlphaGenome assessed functional regulation, and The Alzheimer's Cell Atlas (TACA) database was used for drug-target relevance of FCER1G.

Results: Across 54 Genotype-Tissue Expression (GTEx) tissues, 410 SNP-gene-tissue co-localizations …


Transcriptomics And Metabolomics Analysis Reveal Cell Subpopulations Of Trophoblast Cells Associated With Preeclampsia, Zixing Zhong, Hetong Li, Caihong Zheng, Lujiao Chen, Juan Wei, Xishi Lin, Peng Ding, Zehua Dong, Xiaosheng Wang, Qiong Luo Feb 2026

Transcriptomics And Metabolomics Analysis Reveal Cell Subpopulations Of Trophoblast Cells Associated With Preeclampsia, Zixing Zhong, Hetong Li, Caihong Zheng, Lujiao Chen, Juan Wei, Xishi Lin, Peng Ding, Zehua Dong, Xiaosheng Wang, Qiong Luo

Faculty, Staff and Student Publications

Placental abnormalities are central to preeclampsia (PE), yet the cellular and molecular mechanisms underlying this dysfunction remain unclear. We applied a multi-layered, integrative approach to investigate placental tissue from patients with PE and matched controls. Single-cell RNA sequencing (scRNA-seq; GSE173193) and bulk RNA sequencing (bulk RNA-seq; GSE203507) datasets were obtained from the Gene Expression Omnibus. The scRNA-seq dataset included two PE and two control samples, whereas the bulk RNA-seq dataset focused on eight early-onset PE and five uncomplicated term births. Trophoblast subpopulations were identified via scRNA-seq, and pseudotime analysis was used to trace differentiation trajectories. Differential expression and pathway enrichment …


2026 February, Morehead State University. Office Of Communications & Marketing. Feb 2026

2026 February, Morehead State University. Office Of Communications & Marketing.

Morehead State Press Release Archive, 1961 to the Present

Press releases for February of 2026.


Higher Education Student Engagement In Learning Activities: Clarifying Concepts And Introducing A Short-Scale, Feliciano Veiga, Johnmarshall Reeve, Carlota M. Veiga, Zi Yang Wong, Isabel Martinez, Anabela Pereira Nuno Archer De Carvalho Feb 2026

Higher Education Student Engagement In Learning Activities: Clarifying Concepts And Introducing A Short-Scale, Feliciano Veiga, Johnmarshall Reeve, Carlota M. Veiga, Zi Yang Wong, Isabel Martinez, Anabela Pereira Nuno Archer De Carvalho

Research Collection School of Social Sciences

Student engagement plays a vital role in higher education due to its significant influence on academic outcomes, such as academic achievement and course completion. However, the concept of student engagement is often ambiguously defined, with a lack of distinction between engagement in learning and involvement in the academic community. Although the current student engagement measures have contributed to advancing knowledge in the area, they are often too long and exclude agentic engagement, which is seen as a key dimension in higher education. This research aimed to (a) clarify the concept of student engagement and the conceptual problems of the existing …


Design And Implementation Of An Aapm Volunteer Database For Advancing Global Medical Physics Initiatives., Teh Lin, Minsun Kim, Courtney Morrison, Jiahan Zhang, Kevin Little, Yan-Hong Xin, Michael Woodward, Peter Sandwall, Eun Young Han Feb 2026

Design And Implementation Of An Aapm Volunteer Database For Advancing Global Medical Physics Initiatives., Teh Lin, Minsun Kim, Courtney Morrison, Jiahan Zhang, Kevin Little, Yan-Hong Xin, Michael Woodward, Peter Sandwall, Eun Young Han

Oncology Articles

PURPOSE: The purpose of this study is to assess American Association of Physicists in Medicine (AAPM) members' availability to volunteer, share their expertise, and promote global collaboration in medical physics by partnering with international colleagues who seek support in strengthening their medical physics practice.

METHODS: The questionnaire was administered to AAPM members to assess their willingness to volunteer, preferred engagement modalities, and availability for different types of volunteer activities. The questionnaire was integrated into the AAPM member profile and covered therapy, diagnostic, and nuclear medicine disciplines, capturing participants' visiting preferences and expertise in teaching and training. Respondents were categorized based …


Role Of Childhood Trauma In Interoception And Alexithymia In Schizophrenia, Samantha Narvaez, Krista Wisner, Alina Siatka, L Elliot Hong, Joshua Chiappelli Feb 2026

Role Of Childhood Trauma In Interoception And Alexithymia In Schizophrenia, Samantha Narvaez, Krista Wisner, Alina Siatka, L Elliot Hong, Joshua Chiappelli

Faculty, Staff and Student Publications

Childhood trauma (CT) is a notable risk factor for schizophrenia. Separately, CT has been associated with alexithymia, referring to difficulties in identifying and describing one's own feelings, as well as disturbed interoception, referring to difficulties sensing and responding to signals that originate from within the body. Both self-perception impairments have been observed in schizophrenia; however, the role of CT in these observations in schizophrenia is unclear. To address this gap, interoception was assessed using the Multidimensional Assessment of Interoceptive Awareness (MAIA), alexithymia was assessed using the Toronto Alexithymia Scale (TAS-20), and CT was measured using the Childhood Trauma Questionnaire (CTQ) …


Conditions Of Vulnerability: Interpreting Social Condition Discrimination, Colleen Sheppard, Geneviève Plumptre, Hannah Reaburn Feb 2026

Conditions Of Vulnerability: Interpreting Social Condition Discrimination, Colleen Sheppard, Geneviève Plumptre, Hannah Reaburn

Dalhousie Law Journal

At a time of deepening structural inequality, it is important to develop human rights categories that respond to the needs of diverse social groups living in conditions of vulnerability. One source of protection, aimed at countering the exclusion and maltreatment of people who are socially or economically disadvantaged, is the addition of “social condition” as a prohibited ground of discrimination. Québec, the Northwest Territories, and New Brunswick have such protection in their anti-discrimination laws. In this article, we argue that the social condition ground is an important tool for redressing intersectional, group-based vulnerabilities that do not fit readily into traditional …


Masthead & Table Of Contents Feb 2026

Masthead & Table Of Contents

Dalhousie Law Journal

No abstract provided.


Prediction Of Methane Gas By Using Hyperspectral Imageries And Remote Sensing Techniques, Aysha Ali Alhajeri Feb 2026

Prediction Of Methane Gas By Using Hyperspectral Imageries And Remote Sensing Techniques, Aysha Ali Alhajeri

Theses

Greenhouse gases is important for sustaining life on earth as well as in mitigating climate change. Methane (CH4) is considered as one of the most important critical gases for the global climate change and have significant influences on our life. Accordingly, the prediction of this greenhouse gas emissions is very important for avoiding the climate change effects and to maintain environmental sustainability. The objective of this study is to explore the potential applications for remote sensing to predict methane levels in the Earth’s atmosphere with a combination of local ground data and data from hyperspectral satellite imagery. By using hyperspectral …


The Asymmetric Effects Of Posting An Online Review On Future Spending And The Dark Side Of Solicitations, Hulya Karaman Feb 2026

The Asymmetric Effects Of Posting An Online Review On Future Spending And The Dark Side Of Solicitations, Hulya Karaman

Research Collection Lee Kong Chian School Of Business

Motivated by the prevalence of online review creation and solicitation, this paper examines whether posting an online review impacts the reviewer’s future spending on the reviewed brand. Identifying the causal effects of posting an online review is challenging because reviewers self-select into posting, making it an endogenous decision. I overcome this challenge by using randomized online review solicitations as an instrument for the endogenous treatment variable of posting an online review and establish that doing so decreases the average future spending by the reviewers on the reviewed brand. Additionally, I show that soliciting customers to post increases their propensity to …


Pediatric Pqct-Derived Tibial Bone Mineral Density Estimates: A Systematic Review And Meta-Regression, Anna Maria Markarian, Dennis R. Taaffe, Daniel A. Galvão, Jodie Cochrane Wilkie, Carolyn J. Peddle-Mcintyre, Mark Markarian, Daniel J. Schiferl, Robert U. Newton Feb 2026

Pediatric Pqct-Derived Tibial Bone Mineral Density Estimates: A Systematic Review And Meta-Regression, Anna Maria Markarian, Dennis R. Taaffe, Daniel A. Galvão, Jodie Cochrane Wilkie, Carolyn J. Peddle-Mcintyre, Mark Markarian, Daniel J. Schiferl, Robert U. Newton

Research outputs 2022 to 2026

Background: Assessing bone mineral density (BMD) in children and adolescents is essential for detecting skeletal deficits and fracture risk. Peripheral quantitative computed tomography (pQCT) has gained increasing attention as a valuable imaging tool due to its ability to assess bone quality. Unlike dual-energy x-ray absorptiometry, pQCT provides volumetric BMD measurements and distinguishes between cortical and trabecular compartments. Despite these advantages, its clinical adoption remains limited due to the lack of reference data and standardized protocols. Methods: A systematic search was conducted in CINAHL, Embase, PubMed, SPORTDiscus, and Web of Science from inception to November 2024. Studies reporting pQCT-derived tibial BMD …


Old Signals, New Era: Reconsidering How Customer Satisfaction And Employee Satisfaction Impact Shareholder Wealth, Cesar Zamudio, Suyun Mah, Vanitha Swaminathan Feb 2026

Old Signals, New Era: Reconsidering How Customer Satisfaction And Employee Satisfaction Impact Shareholder Wealth, Cesar Zamudio, Suyun Mah, Vanitha Swaminathan

Research Collection Lee Kong Chian School Of Business

Extant research suggests that higher levels of customer and employee satisfaction signal a firm’s competitive advantage, resulting in greater firm value. This article advances the understanding of how firms can manage customer satisfaction and employee satisfaction to increase shareholder wealth in a new environment due to the emergence of social media and a new class of retail investors. Drawing from stakeholder theory and signaling theory, we argue that inconsistency in customer satisfaction and employee satisfaction can be informative to investors and lead to greater shareholder wealth in such a new environment. Our findings demonstrate that there is a negative joint …


Acute Otitis Media: Antibiotic Length, Children's Mercy Kansas City Feb 2026

Acute Otitis Media: Antibiotic Length, Children's Mercy Kansas City

Clinical Critically Appraised Topics

No abstract provided.


Optical Fiber Sensors Using Vernier Effect In Cascaded Fiber Interferometers, Zhouchen Wang Feb 2026

Optical Fiber Sensors Using Vernier Effect In Cascaded Fiber Interferometers, Zhouchen Wang

Dissertations

The optical Vernier effect has emerged as a powerful tool to enhance the sensitivity of optical fiber interferometer-based sensors, opening new opportunities for developing highly sensitive fiber sensing systems. Optical fiber interferometric sensors based on the Vernier effect are widely used for various applications due to their ultra-compact size, high sensitivity, immunity to electromagnetic interference, electrical isolation, resistance to harsh environments, flexibility, multiplexing capability, and remote operation. The aim of this doctoral thesis was to gain a deeper fundamental understanding of the Vernier effect in optical fiber structures and to develop and investigate a series of novel Vernier effect optical …


Elevated Serum Lipopolysaccharides And Intrinsic Factor Autoantibodies Correlate With Macrocytic Anemia Among People With Hiv, Daniel Amakye, Samuel Hammond, Osbourne Quaye, Upal Roy, Peter Puplampu, Vincent Ganu, Emmanuel Ayitey Tagoe Feb 2026

Elevated Serum Lipopolysaccharides And Intrinsic Factor Autoantibodies Correlate With Macrocytic Anemia Among People With Hiv, Daniel Amakye, Samuel Hammond, Osbourne Quaye, Upal Roy, Peter Puplampu, Vincent Ganu, Emmanuel Ayitey Tagoe

Health & Biomedical Sciences Faculty Publications

Introduction: Human immunodeficiency virus (HIV) infection is associated with various comorbidities, including macrocytic anemia, though the role of the infection is unclear. HIV has been implicated in microbial translocation and altered immune responses. This study aimed to establish the relationship between gut microbial translocation and immune response, and macrocytic anemia among people with HIV (PWH).

Materials and methods: Fifty-five PWH on combination antiretroviral therapy (cART) were age-matched with 55 HIV-negative individuals. Demographic data and blood samples were collected from February to July 2023. Hematological indices, including red blood cell (RBC) count, hemoglobin concentration, and mean corpuscular volume (MCV), were measured. …


Market Culture And Innovation Acceptance In Fire Safety Products: The Moderating Role Of Perceived Market Regulation, Xu Zhang Feb 2026

Market Culture And Innovation Acceptance In Fire Safety Products: The Moderating Role Of Perceived Market Regulation, Xu Zhang

Dissertations and Theses Collection (Open Access)

Against the backdrop of continuously rising global fire safety standards and ongoing technological iteration in fire protection products, whether innovative fire protection products can be effectively accepted by the market has become a critical issue influencing the returns on firms’ innovation investments and the high-quality development of the industry. Existing studies have predominantly explored innovation diffusion mechanisms from the perspectives of technological attributes or organizational factors, while paying relatively limited attention to market culture as a contextual factor, as well as to the differentiated role that government regulation may play in this process. Based on this, this study takes institutional …


Integrated Computational And Experimental Investigation Of Groups V And Vi Metals In (M,Hf,Ti,Zr)B2-(M,Hf,Ti,Zr)C Ceramics, Ana C. Feltrin, Simon Divilov, Gregory E. Hilmas, Stefano Curtarolo, William G. Fahrenholtz Feb 2026

Integrated Computational And Experimental Investigation Of Groups V And Vi Metals In (M,Hf,Ti,Zr)B2-(M,Hf,Ti,Zr)C Ceramics, Ana C. Feltrin, Simon Divilov, Gregory E. Hilmas, Stefano Curtarolo, William G. Fahrenholtz

Materials Science and Engineering Faculty Research & Creative Works

Dual-phase compositionally complex ultra-high temperature ceramics were formulated by incorporating different Groups V and VI metals such as V, Nb, Ta, Cr, Mo, or W into a base composition containing the Group IV elements, Hf, Ti, and Zr. Metal distribution was predicted using first-principles-based thermodynamics simulations and compared with experimental results. Moreover, phase stability, microstructure, and mechanical properties were evaluated for all of the ceramics. Compositions containing Cr, V, Nb, or Ta formed dual-phase ceramics containing only one boride and one carbide phase, while compositions containing Mo or W developed an additional third phase. The experimental metal distribution trends generally …


Co-Calcination Of Limestone And Clay Enhances The Performance Of Limestone Calcined Clay Cement (Lc3), Oluwadamilare Charles Adesina, Sahil Surehali, Avinaya Tripathi, Kayla Lauren Lee, Bryan K. Aylas-Paredes, Aditya Kumar, Narayanan Neithalath Feb 2026

Co-Calcination Of Limestone And Clay Enhances The Performance Of Limestone Calcined Clay Cement (Lc3), Oluwadamilare Charles Adesina, Sahil Surehali, Avinaya Tripathi, Kayla Lauren Lee, Bryan K. Aylas-Paredes, Aditya Kumar, Narayanan Neithalath

Materials Science and Engineering Faculty Research & Creative Works

Limestone-calcined clay cements (LC3) reduce the environmental impact of cement production and accelerate the industry transition toward carbon neutrality. While conventional LC3 with 50% clinker replacement (LC3-50) demonstrate long-term performance comparable to ordinary Portland cement (OPC) in concrete, early-age performance is generally compromised. This study explores for the first time, joint thermal treatment—that is, co-calcination—of limestone (LS) and bulk kaolinitic clay in mass ratios of 1:1 to 1:4 under a calcination regime specifically designed to ensure activation of the clay mineral. The co-calcination converts a small fraction of LS to metastable CaO, thus providing an …


Inclusion Engineering Through Deoxidation Practice Optimization For Enhanced Mechanical Properties Of Cast Cr-Ni-Mo Steel, Kingsley T. Amatanweze, Viraj A. Athavale, Simon Lekakh, Ronald J. O'Malley, Laura N. Bartlett Feb 2026

Inclusion Engineering Through Deoxidation Practice Optimization For Enhanced Mechanical Properties Of Cast Cr-Ni-Mo Steel, Kingsley T. Amatanweze, Viraj A. Athavale, Simon Lekakh, Ronald J. O'Malley, Laura N. Bartlett

Materials Science and Engineering Faculty Research & Creative Works

Deoxidation is an integral part of steelmaking, as it determines steel castability, cleanliness, and porosity levels of the final product. Steel quality is critical to its performance and can be sabotaged by impurities such as non-metallic inclusions and porosity. This study investigates the effects of four distinct deoxidation practices, using Al, Al-Ca, Zr-Ca, and Mn-Si respectively, on tensile strength, tensile ductility and impact toughness of a Cr-Ni-Mo steel. These deoxidation reactions were modeled on a commercially available thermodynamic software and possible inclusion product phases were predicted. The casting samples were studied on a scanning electron microscope (SEM) utilizing energy dispersive …


Post-Calcium Treatment Evolution Of Alumina (Al2o3) Inclusions Morphology, Naziru I. Fuseini, Ronald J. O'Malley, Todd P. Sander, Jeffrey D. Smith, Haiming Wen, Laura N. Bartlett Feb 2026

Post-Calcium Treatment Evolution Of Alumina (Al2o3) Inclusions Morphology, Naziru I. Fuseini, Ronald J. O'Malley, Todd P. Sander, Jeffrey D. Smith, Haiming Wen, Laura N. Bartlett

Materials Science and Engineering Faculty Research & Creative Works

The post-calcium morphological evolution of Al2O3 inclusions formed under high-oxygen supersaturation (~1000 ppm) was investigated through time-resolved sampling and quenching of aluminum-killed, calcium-treated steel. SEM-EDS analysis revealed the formation of angular two-phase CaO·Al2O3–CaS inclusions within 1 minute, gradually transforming into spherical liquid 12CaO·7Al2O3 and CaO·Al2O3 with a thin CaS layer around it. The 3D morphology of the CaS phase of the complex CaO·Al2O3–CaS inclusions observed at 1 minute appeared as a cone-cap attached to the partially modified CaO·Al2O3. This …


Thermodynamic Analysis Of Metal Segregation In Two Metal Boride-Carbide Ceramics Containing V With Cr, Hf, Ti, Or Zr, Ana C. Feltrin, Simon Divilov, Gregory E. Hilmas, Stefano Curtarolo, William G. Fahrenholtz Feb 2026

Thermodynamic Analysis Of Metal Segregation In Two Metal Boride-Carbide Ceramics Containing V With Cr, Hf, Ti, Or Zr, Ana C. Feltrin, Simon Divilov, Gregory E. Hilmas, Stefano Curtarolo, William G. Fahrenholtz

Materials Science and Engineering Faculty Research & Creative Works

Dual-phase carbide-boride ceramics in different vanadium-Me (Me = Cr, Hf, Ti, and Zr) binary systems were synthesized by boro/carbothermal reduction under stoichiometric and carbon-deficient conditions and densified by spark plasma sintering. Thermodynamic analysis was used to evaluate the influence of composition on the phase stability and metal segregation between phases, along with the resulting effects on microstructure and hardness. Pairing vanadium with Group IV elements (Hf, Ti, and Zr) consistently formed one boride and one carbide phase, while the Cr-V system formed a monoboride phase and a carbon-deficient carbide. Metal segregation trends depended on composition. Vanadium preferentially segregated to the …


Zirconium And Hafnium Interdiffusion Study In Zrb2–Hfb2 System, Yue Zhou, Ana C. Feltrin, William G. Fahrenholtz, Gregory E. Hilmas Feb 2026

Zirconium And Hafnium Interdiffusion Study In Zrb2–Hfb2 System, Yue Zhou, Ana C. Feltrin, William G. Fahrenholtz, Gregory E. Hilmas

Materials Science and Engineering Faculty Research & Creative Works

Interdiffusion of Zr and Hf in the diboride system was investigated. High-purity zirconium diboride (ZrB2) and hafnium diboride (HfB2) were prepared by a combination of boro-/carbothermal reduction synthesis and densification by spark plasma sintering. The bulk ceramics had relative densities of 99.3% for ZrB2 and 99.7% for HfB2, and both ceramics were phase-pure by x-ray diffraction analysis. Diffusion couples of ZrB2 and HfB2 were annealed at temperatures ranging from 2000°C to 2200°C for times from 4 to 12 h. Zr and Hf elemental concentration profiles were measured using energy dispersive spectroscopy …


Examining The Effect Of Newcomers’ Adaptability On Proximal And Distal Outcomes Of Organizational Socialization, Vahe Permzadian, Mishra Vipanchi Feb 2026

Examining The Effect Of Newcomers’ Adaptability On Proximal And Distal Outcomes Of Organizational Socialization, Vahe Permzadian, Mishra Vipanchi

Psychological Science Faculty Research & Creative Works

We investigate the role of individual adaptability (I-ADAPT) in newcomer socialization by exploring its effects on the proximal and distal outcomes of the work-role transition process. Based on I-ADAPT theory, our study assesses how I-ADAPT affects the three key indicators of newcomer adjustment (i.e., role clarity, task mastery, and social acceptance) and, in turn, their effect on the distal socialization outcomes of job satisfaction, turnover intention, and work withdrawal. Using a 2-wave prospective design, we collected data from 280 newcomers recruited through Prolific. Results indicated that I-ADAPT dimensions differentially predict newcomer adjustment, with learning adaptability affecting role clarity, uncertainty adaptability …


A General Limit Theory For Nonlinear Functionals Of Nonstationary Time Series, Qiying Wang, Peter C. B. Phillips Feb 2026

A General Limit Theory For Nonlinear Functionals Of Nonstationary Time Series, Qiying Wang, Peter C. B. Phillips

Research Collection School Of Economics

New limit theory is provided for a wide class of sample variance and covariance functionals involving both nonstationary and stationary time series. Sample functionals of this type commonly appear in regression applications and the asymptotics are particularly relevant to estimation and inference in nonlinear nonstationary regressions that involve unit root, local unit root, or fractional processes. The limit theory is unusually general in that it covers both parametric and nonparametric regressions. Self-normalized versions of these statistics are considered that are useful in inference. Numerical evidence reveals interesting strong bimodality in the finite sample distributions of conventional self-normalized statistics similar to …


Are Cities Losing Innovation Advantages? Online Versus Face-To-Face Interactions, Ruben Gaetani, Naqun Huang, Jing Li, Yanmin Yang Feb 2026

Are Cities Losing Innovation Advantages? Online Versus Face-To-Face Interactions, Ruben Gaetani, Naqun Huang, Jing Li, Yanmin Yang

Research Collection School Of Economics

How did COVID-19 affect the innovation advantages of dense locations? Using data on the universe of U.S. patent applications, we find that the density premium in the production of novel inventions declined by 18.5%-22.9% in 2020-2021 relative to its pre-pandemic level. Smartphone data on local mobility suggest that the drop in the frequency of local interactions can explain a significant portion of this effect. While COVID-19 resulted in a temporary setback in the innovation advantages of dense locations, the role of urban density in facilitating the exchange and recombination of ideas is unlikely to be persistently replaced by online communication.


Removed: When Taxi Drivers Meet Dynamic Pricing: A Lesson From Singapore's Justgrab Program, Shih-Fen Cheng, Wen-Tai Hsu, Jing Li Feb 2026

Removed: When Taxi Drivers Meet Dynamic Pricing: A Lesson From Singapore's Justgrab Program, Shih-Fen Cheng, Wen-Tai Hsu, Jing Li

Research Collection School Of Economics

This paper studies how dynamic pricing influences taxi drivers’ behaviors using a unique event, the inception of the JustGrab program in Singapore in 2017, which introduces dynamic pricing to some, but not all, taxi drivers. This is the first time in history that traditional taxi drivers have access to dynamic pricing. Using data covering the universe of taxi trips before and after the inception of JustGrab, we find that there is spatial reallocation that directs more taxi drivers to the previously less-served areas, that there is also a temporal reallocation that directs more taxi drivers to rush hours, as well …


G-Trac: Graph-Textual Representations Alignment For Cold-Start Recommendations, Li Yang Chang, Yuan Fang, Ming Feng Tsai, Chuan Ju Wang Feb 2026

G-Trac: Graph-Textual Representations Alignment For Cold-Start Recommendations, Li Yang Chang, Yuan Fang, Ming Feng Tsai, Chuan Ju Wang

Research Collection School Of Computing and Information Systems

The cold-start problem remains a significant challenge in recommendation systems, particularly for new users or unseen items with little to no historical data. Existing methods, including graph neural networks, often struggle in such scenarios. Inspired by the success of transformer models in natural language processing, we propose G-TRAC (Graph-Textual Representations Alignment for Cold-start Recommendations), a novel approach that integrates transformer-based textual modeling with graph neural networks. By effectively leveraging both textual and structural information, G-TRAC addresses cold-start challenges more effectively. Extensive experiments demonstrate its ability to enhance recommendation quality and generalize well across diverse scenarios.


Brand Switching Or Behavior Change: The 2023 Bud Light Boycott's Impact On Alcohol Purchases, Aljoscha Janssen Feb 2026

Brand Switching Or Behavior Change: The 2023 Bud Light Boycott's Impact On Alcohol Purchases, Aljoscha Janssen

Research Collection School Of Economics

I study how the 2023 Bud Light boycott affected overall alcohol demand using household-level panel data and a set of difference-in-differences designs. Focusing on households that, before April 2023, regularly purchased Bud Light, I find a large drop in Bud Light volume (34%–37%), partial switching into other beer (+70 to +90 ounces per month), and a net decline in total ethanol purchases of about 3–4 fl-oz per month, or roughly 5.5%–7.5% of pre-boycott intake. I detect no compensatory increase in wine or spirits. Scaled nationally, the quantity response is equivalent to roughly 150 million standard drinks per year; using CDC …


Melody: Mediation Analysis In Logistic Regression For High-Dimensional Mediators And A Binary Outcome, Sunyi Chi, Xingyu Li, Peng Wei, Xuelin Huang Feb 2026

Melody: Mediation Analysis In Logistic Regression For High-Dimensional Mediators And A Binary Outcome, Sunyi Chi, Xingyu Li, Peng Wei, Xuelin Huang

Faculty, Staff and Student Publications

Mediation analysis is a pivotal tool for elucidating the indirect effect of an environmental factor or treatment on disease through potentially high‐dimensional omics data, such as gene expression profiles. However, traditional mediation analysis methods tailored for binary outcomes often rely on the rare disease assumption in logistic regression and provide inadequate measures of total mediation effect when multiple mediators have effects in different directions. In this paper, we develop a MEdiation analysis framework in LOgistic regression for high‐Dimensional mediators and a binarY outcome (MELODY). It leverages a second‐moment‐based measure analogous to the ��2 for linear models to quantify the total …