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Chytrids (phylum Chytridiomycota ) are zoosporic fungi that play key roles as parasites of aquatic microorganisms, yet they are understudied and genomic resources for algal-infecting chytrids remain scarce. Here, we present the first comparative genomic analysis of multiple isolates of a single chytrid species (order Rhizophydiales ) infecting the cyanobacterium Planktothrix agardhii . Isolates were collected from Sandusky Bay...
Muscle architectural and performance adaptations following an 8-week sprint-focused training interventionNARA Subscribed
Muscle fascicle length is a key determinant of sprint performance, with lengthening adaptations observed following eccentric strength training or combined sprint and resistance interventions. However, whether sprint-focused training can induce meaningful architectural adaptations, independent of concurrent sport-related training, remains unclear. Fourteen participants (10 female, 4 male; age 21.6 ± 3.3 years; body mass 68.0 ±...
Modeling air temperature from snow-buried sensors to refine multi-decadal warming trends in Great Basin National Park, NV, USANARA Subscribed
Collecting reliable meteorological data in mountain environments is difficult because harsh conditions, complex terrain, and limited access disrupt long-term observations. In the Snake Range, Nevada, snow cover of low-cost temperature and humidity sensors creates winter gaps in near-surface air temperature records. To address this challenge, we developed three Random Forest Regression models to predict 2-m daily maximum, mean,...
Background and aims Biological nitrogen fixation (BNF) supplies much of soybean ( Glycine max (L.) Merr.) nitrogen (N) demand, but reported fixation rates vary widely, leading to uncertainty in the soybean N cycle. We quantified whole-plant soybean BNF and N allocation using long-term 15 N labeling to assess whether BNF can offset grain N removal in a high-yielding system, and to quantify root contributions to fixed N. Methods...
Anthropogenic Effects, Not Climatic Factors, Are Correlated With Holocene Population Expansion of an Insular Bee FaunaNARA Subscribed
Aim Remote island systems with small landmasses and reliable estimates of human occupancy can be ideal models to disentangle the roles of global climatic changes and local human occupation on biota. Here, we explored this with demographic reconstructions of native, ground‐nesting bees with non‐specialised floral visitation habits to infer changes in effective population size ( N e ). Location Viti Levu, Fiji, South West Pacifi...
Scaling the Spatial and Temporal Effects of Wrack Disturbance Across a Saltmarsh LandscapeNARA Subscribed
Disturbance effects are rarely distributed uniformly over space or time. Thus, scaling up the effects of disturbances requires detailed measurements across multiple spatial scales. To characterize disturbance from wrack we used monthly images from an unmanned aerial vehicle (UAV) in a 144,500 m 2 Spartina alterniflora saltmarsh on Sapelo Island, Georgia (USA), from March 2020 to December 2022. Prior work as well as the results...
Additively Manufactured Partially Porous PAEK Topologies for Proximal Tibia Revision Cones and SleevesNARA Subscribed
Metaphyseal cones and sleeves are an increasingly common component utilized in revision total knee arthroplasty. These partially porous devices have a high surface area and aim to integrate with cancellous bone of the distal femur and proximal tibia to increase the stability of the implant. Incidences of metal-hypersensitivity and macrophage-stimulated osteolysis have motivated the development of a non-metal alternative in the...
Introduction Understanding migration timing and movement behavior is critical for predicting population responses to environmental changes. The beluga whale ( Delphinapterus leucas ) population in Cumberland Sound, Nunavut, is currently endangered due to historical and ongoing overharvesting. Methods By comparing satellite telemetry data from two distinct time periods (1998–1999 and 2006–2008), we evaluated beluga whale dive b...
Interpretable deep learning reveals spatiotemporal MRI features of brain aging that align with neurodegenerationNARA Subscribed
Cortical thinning and atrophy are hallmarks of brain aging that have been characterized using magnetic resonance imaging (MRI). Brain aging involves many neuroanatomic features whose effects on brain structure remain unexplored. To address this challenge, we trained interpretable deep neural networks (DNNs) to estimate brain age (BA) from T 1 -weighted ( T 1 w) MRI. By identifying MRI features unapparent to humans, DNNs can fi...
Host Prior Exposure Augments Gene Expression Heterogeneity of Both Host and Pathogen During In Vivo InfectionNARA Subscribed
Variability in acquired protection, whether from prior infection or vaccination, helps drive inter‐individual level variation in disease traits. It remains unclear, however, whether this extends to the within‐host regulatory environment and what the consequences are for reinfecting pathogens. Here, we asked whether prior pathogen exposure of hosts induces gene expression heterogeneity in host and/or pathogen during infection....
Alzheimer’s disease (AD) disproportionately affects women and carriers of the apolipoprotein E ε4 allele (APOE4), yet little is known about how sex and APOE interact to influence white matter (WM) integrity during disease progression. We integrated diffusion MRI and matched blood transcriptomic data to investigate these interactions and their underlying biological mechanisms. WM microstructure was quantified using diffusion te...
Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened Species by assessing the vulnerability of 256 marine megafauna species to 23 at‐sea threat...