University of Montana

Concentration and composition of nanoparticles and colloidal particles in a mine-waste contaminated river

Environmental context. Metals in filtered stream water are assumed to primarily be ions or bound to organic matter, but likely also consist of submicron particles. We found that submicron particles were abundant in a mine-waste contaminated stream, containing iron and manganese w...

Self-Reported Dizziness Handicap is Related to Functional Capacity in People with Vestibular Hypofunction

BACKGROUND AND PURPOSE: Individuals with vestibular hypofunction (VH) report low levels of physical activity (PA), corresponding with restrictions when performing activities of daily living. However, a clear association between physical function and self-reported dizziness handic...

Human Recreation and Fire History Shape Landscape Connectivity for an Endangered Forest Carnivore

ABSTRACT Habitat connectivity is critical for long‐term wildlife population persistence, yet the permeability of landscape features can vary with human activity and disturbance history. Characterizing landscape features influencing permeability is critical for landscape planning...

Age-specific genomic and transcriptomic variation reveals limited evidence for cis- regulatory interactions modulating aging in Saccharomyces cerevisiae

A bstract The budding yeast Saccharomyces cerevisiae is a well-established model for studying the genetic basis of complex traits, and it is a powerful system for investigating mechanisms of aging. Here, we examine the genomic and transcriptomic factors contributing to increased...

Evaluation of Antiviral Drugs’ Central Nervous System Distribution Using In Vitro Blood–Brain and Blood-CSF Barrier Models: The Impact of Serum Protein Concentration

The blood–brain barrier (BBB) and blood–cerebrospinal fluid barrier (BCSFB) are dynamic neurovascular interfaces that maintain central nervous system (CNS) homeostasis by tightly regulating paracellular and transcellular molecular transport. Intercellular communication between ad...

Right on time: evaluating accuracy and timing of burn-severity assessments to support post-fire management

Abstract Effective wildfire impact assessment and post-fire management rely on burn-severity maps that accurately characterize fire effects on vegetation and soils. These maps inform time-sensitive activities such as post-fire flood and debris-flow modeling, risk mitigation for h...

The downward legacy of a phytoplankton bloom in the oligotrophic North Pacific Subtropical Gyre

Abstract Ocean particles are a heterogeneous collection, including living and dead cells, feces, mucus‐rich aggregates, and mineral shells and frustules. In the well‐lit upper ocean, phototrophic processes fuel production of particulate matter; however, only a relatively small pe...

RELATING INSPLITTINGS OF 2-GRAPHS AND OF TEXTILE SYSTEMS

Abstract The graphical operation of insplitting is key to understanding conjugacy of shifts of finite type (SFTs) in both one and two dimensions. In this paper, we consider two approaches to studying two-dimensional (2D) SFTs: textile systems and rank-2 graphs. Nasu’s textile sys...

“You have no grit:” A qualitative exploration of barriers to eating disorder care in the rural United States

This qualitative study explored the barriers to eating disorder (ED) treatment among adults with EDs in a rural state. Study participants were adults with a confirmed ED who lived in a rural region of one rural state in the United States. Braun & Clarke’s (2006) thematic analysis...

“Perinatal mental health in rural contexts: risk factors, barriers, and pathways to support”

Perinatal mood and anxiety disorders (PMADs) are the most common complication of pregnancy, with rural populations facing heightened risk. Semi-structured qualitative interviews conducted with 33 participants in Montana revealed that risk factors for PMADs are multifaceted, and t...

Bioelectric regulation of stem cell fate: From the plasma membrane to organelles

Stem cell identity has traditionally been viewed through the lens of transcriptional and metabolic programs. Recent work has revealed an additional layer of complexity: the plasma membrane and intracellular organelles maintain compartment-specific membrane potentials, pH gradient...

Automated workflow demonstrates mixed treatment impacts on burn severity across ecoregion scales

Background Intensifying wildfire activity in western North America has motivated focus on fuel treatments as a tool for moderating fire severity. Treatment effectiveness is influenced by complex interactions among biophysical settings, treatments and weather. Aims This study intr...

Exploring the Benefit of an OT-Led Modified CBT-I Sleep Intervention for Montana Veterans: A Pilot Study

ImportanceSleep disturbances are highly prevalent among veterans and negatively impact mental health and occupational performance. Occupational therapy (OT) practitioners are well equipped to address sleep as a core occupation through interventions that target habits, routines, a...

Post-fire erosion and debris flows in the western Pacific Northwest, United States: recent science and opportunities

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...

Where will the cat cross the road? Comparing camera and GPS-based models for identifying wildlife corridors

Designing effective wildlife corridors is a critical conservation challenge in fragmented landscapes. GPS-based step selection functions strongly predict dispersal corridors and connectivity, but GPS collaring can be expensive and invasive. Camera-based occupancy models are widel...

Assessing spatial heterogeneity of active layer thickness over Arctic-foothills tundra, North Slope Alaska

Abstract. Changes in active layer thickness (ALT) are used as an indicator of permafrost degradation. Increases in ALT can lead to increased greenhouse gas emissions, altered hydrology and ecology, ground instability, and a positive climate feedback. Quantifying ALT spatial heter...

Characterizing emissions, chemistry, and health impacts of aged wildfire smoke in a western US city

Abstract. We report hourly surface observations of PM2.5, CO, NOx, O3, and 75 speciated VOCs in Missoula, Montana, during a strong smoke event in 2020. This study tests our current understanding of wildfire emissions, chemistry, and health effects as implemented in the GEOS-Chem...

Pregnancy and Early Parenting Experiences of Persons With Disabilities

Background: Persons with disabilities (PWD) are as likely as their nondisabled peers to become pregnant, yet their experiences of pregnancy and early parenthood remain poorly understood. We aimed to explore the experiences of PWD during pregnancy and the postpartum period, with p...

A Mid-Atlantic Brook Trout ( Salvelinus fontinalis ) genome to advance conservation and comparative genomics

Brook Trout (Salvelinus fontinalis) are experiencing genomic erosion and demographic declines across the southern portion of their native distribution. A regionally representative reference genome is necessary to support conservation genomic initiatives for this species. While Br...