Institution
Portland State University
Recent research
- Materials & EnergyOpen access
ABSTRACT Heteroanionic solids offer unique levers for tuning structures and properties, but accessing multianion phase space remains challenging due to mismatches in anion reactivity. Here, we describe a new family of A 2 Hf 3 Q 6 O (A = K, Rb, Cs; Q = S, Se) oxychalcogenides, th...
- Climate & EnvironmentOpen access
Extensive glacier loss in the coterminous United States
Glaciers populate the mountain ranges of the western conterminous United States and despite their importance to alpine hydrology, their area and volume change have never been comprehensively evaluated. Our study shows that since the mid-twentieth century about one-quarter of the...
- Climate & EnvironmentOpen access
Abstract Atmospheric non‐methane hydrocarbons (NMHCs) are important trace species with anthropogenic and natural sources including fugitive emissions from fossil fuel mining and distribution, biomass burning, biofuel combustion, and biogenic emissions from microbes and plants. We...
- Society & Economics
The sudden global shift due to COVID-19 accelerated the need for a better understanding of mathematics learning and teaching in an asynchronous format. Also, despite the popular use of mathematics instructional routines in mathematics classrooms, the field of mathematics educatio...
PDXScholar (Portland State University)2026-09-270 citations - AI & Computing
Inherited Local Shrinkage for Adaptive Functional Form Discovery
Statistical models frequently employ nonlinear effects, interactions, and multiresolution basis expansions to represent complex relationships between predictors and responses. Determining the appropriate level of model complexity, however, remains a fundamental challenge. This di...
PDXScholar (Portland State University)2026-09-210 citations - Society & EconomicsOpen access
Multiple drivers and long-term patterns of the ecology of segregation in Latin America
Segregation is a multidimensional phenomenon deeply entwined with historical, social, and ecological contexts. The ecology of segregation framework explores how social norms institutionalize racism, classism, and power dynamics to drive inequitable patterns of environmental benef...
- Society & EconomicsOpen access
This study investigated environmental justice by developing and comparing four contemporary urban segregation typologies (persistent exclusivity, persistent disadvantage, recent gentrification, and recent displacement-hosting) with historical Homeowners’ Loan Corporation (HOLC) z...
- AI & ComputingOpen access
Explainable Binary Classification of Separable Shape Ensembles
Abstract Scientists, engineers, biologists, and technology specialists universally leverage image segmentation to extract shape ensembles containing many thousands of curves representing patterns in observations and measurements. These large curve ensembles facilitate statistical...
- Society & EconomicsOpen access
To foster and advance critical environmental accounting and accountability (CEAA) research, we argue there is a need to foreground the political dimensions of environmental issues by addressing plurality, conflict, contestability and power. Contemporary environmental accounting a...
- Society & EconomicsOpen access
Reproducibility, Replicability, and Research Quality in Homogeneous Catalysis
Abstract Researchers from all sectors of homogeneous catalysis convened in response to concerns regarding reproducibility in science to analyze the issue and provide recommendations. In addition to an in-person workshop, the group engaged the broader homogeneous catalysis communi...
- Society & EconomicsOpen access
The hunger games: procurement strategies under unmitigable supplier dominance
Purpose Most procurement research assumes that buyers possess negotiation power and viable alternatives. However, such assumptions do not hold in practice, as buyers in many industries operate under unmitigable supplier dominance. Against this backdrop, we examine how weaker buye...
- Climate & Environment
Most research into post-fire geomorphology has been conducted in regions with frequent fire, such as in dry Mediterranean and temperate climates and less has been conducted in wet forests where wildfire is now expanding with climate change. Because climate, soils, topography, veg...
- AI & ComputingOpen access
Some of the most classically relevant Hyperplane arrangements are the Braid Arrangements B n and their associated complement spaces ℱ n . In their recent work, Tsilevich, Vershik, and Yuzvinsky [23] construct what they refer to as the intrinsic hyperplane arrangement within any i...
- Health & Medicine
. 2026;116(S4):S321-S330. https://doi.org/10.2105/AJPH.2026.308646).
- Society & EconomicsOpen access
Following the 2020 Black Lives Matter and Anti-Police movements, there were many discussions across the nation about possible changes to law enforcement operations. Among these discussions included specific discussions about what to do about law enforcement officers stationed in...
PDXScholar (Portland State University)2026-09-010 citations - AI & ComputingOpen access
Purpose Drawing on the assemblage framework and signaling theory, this research examines how a voice skill's product control strategy, specifically controllability variety and complexity, shapes perceived intelligence and user evaluations. It also explores the invocation strategy...
- Society & Economics
Can I Trust You? A Longitudinal Study of the Consequences of Suspicion Among Latina/o Students
Racial/ethnic minority group members vary in the extent to which they are chronically suspicious of the motives behind White people’s positive behavior toward minorities. Chronic suspicion has been shown to shape racial/ethnic minorities’ perception, cognition, emotion, and physi...
- Health & Medicine
Variables That Influence Changes in Temporomandibular Joint Structure
ABSTRACT Background There are no objective measures which forecast longitudinal changes in the temporomandibular joint (TMJ). Objective To identify variables that predicted longitudinal changes in TMJ structure. Methods Over an average of 8 years, baseline and follow‐up computed...
- Biology
Adult autism services research is plagued by methodological challenges, including difficulty obtaining representative or heterogeneous samples and a frequent mismatch between experimental methodologies and real-world settings. The Academic Autism Spectrum Partnership in Research...
- AI & ComputingOpen access
Quantum Pseudorandom Scramblers
Abstract. Quantum pseudorandom state generators ( PRSG s) have stimulated exciting developments in recent years. A PRSG , on a fixed initial (e.g., all-zero) state, produces an output state that is computationally indistinguishable from a Haar random state. However, pseudorandomn...