University of Massachusetts Lowell

Artificial Intelligence and Machine Learning for Identifying Social Determinants of Health in Low‐Income Populations Within United States Health Systems: A Scoping Review

ABSTRACT Background and Aims Low‐income populations in the United States experience disproportionate exposure to adverse social conditions. This scoping review examined artificial intelligence (AI) and machine learning (ML) approaches used in United States health systems to ident...

A Self‐Evolving Agentic Framework for Metasurface Inverse Design

ABSTRACT Metasurface inverse design can realize complex optical functionality, but turning a target optical response into executable optimization code still requires substantial expertise in computational electromagnetics and solver‐specific software engineering. We present a sel...

Power weight inequalities for spherical maximal functions

Abstract This paper is about spherical maximal functions with general dilation sets acting on functions in weighted $$L^p(|x|^\alpha )$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mi>L</mml:mi> <mml:mi>p</mml:mi> </mml:msup> <mml:msup> <m...

Self-supervised graph attention networks for community-engaged lead contamination risk assessment

Lead contamination in residential water infrastructure poses a persistent public health risk, yet current assessment approaches rely on sparse homeowner sampling and tabular models that do not explicitly capture spatial dependencies in shared urban systems. Here we present a self...

Heteroepitaxial Growth of High-Mobility Ge-Doped β -Ga2O3 Films on Sapphire Substrate by Low-Pressure CVD

Abstract In this work, high-quality Ge-doped (2̅01) β-Ga2O3 thin films were heteroepitaxially grown on c-plane sapphire substrates with offcut angles of 0°, 2°, 6°, and 8° using low-pressure chemical vapor deposition (LPCVD). Increasing the sapphire offcut promoted step-flow grow...

A Systematic Review of Cybercrime in Hybrid Cyber–Physical Space

Abstract Cybercrime increasingly extends beyond purely digital environments into hybrid cyber-physical spaces, creating new risks for urban infrastructure, mobility systems, and everyday socioeconomic activities. While criminology has long emphasized the importance of place in sh...

Epigenetic changes reveal that vitamin B12 intake is associated with lower insulin resistance in older adults

Abstract Background Dietary choices influence both risk and development of type 2 diabetes (T2D), but the precise mechanisms remain incompletely described. Dietary intake and lifestyle behaviors can alter epigenetic states with subsequent modulations on gene expression which then...

Recovering Honest Inference: A Sparsity- and Skew-Aware Recalibration Doctrine for Pervasively Miscalibrated Small-Sample Chi-Square- and F-Referenced Tests

Abstract: A practitioner who runs a test of independence, a goodness-of-fit test, a likelihood-ratio test, or an analysis of variance reads a single p-value against a chi-square or F reference as calibrated. In large samples it is, because each is asymptotically chi-square. But w...

Recovering Honest Inference: A Sparsity- and Skew-Aware Recalibration Doctrine for Pervasively Miscalibrated Small-Sample Chi-Square- and F-Referenced Tests

Abstract: A practitioner who runs a test of independence, a goodness-of-fit test, a likelihood-ratio test, or an analysis of variance reads a single p-value against a chi-square or F reference as calibrated. In large samples it is, because each is asymptotically chi-square. But w...