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The latest hypothesis regarding the source of enhanced neural activation from resistance training is the reticulospinal rather than the corticospinal tract, based on invasive animal and emerging human data. The present study employed a six-week isometric resistance training intervention in a randomized controlled design to address this knowledge gap. Thirty-nine healthy, untrained males (age ~23 y, sustained contraction group...
Vegetation surveys provide key information for evaluating functions within and across estuaries. However, survey methods and analyses are often highly variable, site-specific, and driven by monitoring program goals and objectives, making regional comparisons that include multiple programs difficult. This study compared multiple transect- and quadrat-based vegetation monitoring methods within eight southern California estuaries...
Field evaluation of polished desalinated produced water for alfalfa irrigation in a semi-arid environmentNARA Subscribed
Water scarcity is a critical challenge in West Texas, where agriculture and the oil and gas industry compete for limited water resources. The oil and gas industry generates approximately 32% of the nation’s produced water, presenting significant opportunities for beneficial reuse. This study evaluated polished desalinated produced water (PDPW) as a supplemental irrigation source for field-grown alfalfa in a semi-arid region, w...
Associations between patterns of brain connectivity and brain structural features have transdiagnostic relevance to psychopathology. There is considerable evidence for disruptions to the hippocampus and temporoparietal brain systems in psychotic disorders. The present study examines structure–function relationships—specifically, the relation of hippocampal volume with patterns of temporoparietal effective connectivity—in youth...
Evaluating Water–Energy–Food Nexus Strategies to Address Resource Scarcity in the Crocodile River Catchment, South AfricaNARA Subscribed
The water–energy–food (WEF) nexus approach highlights the interdependence of water, energy and food resources, all of which play central roles in agriculture, especially irrigation. A WEF nexus lens was applied to Mpumalanga's Crocodile River catchment, a vital irrigation area that significantly contributes to South Africa's staple food production. The region faces rising water demand and excessive withdrawals, threatening wat...
The fast‐slow continuum is a key axis of variation in life history strategies capturing the evolutionary trade‐off between allocation in lifespan versus reproduction. It has been suggested that social behaviour, and therefore network structure, may vary across this continuum, but formal theory remains scarce. We develop a mathematical model to examine how the rate of demographic replacement may influence emergent social networ...
Output from dynamically downscaled, convection‐permitting regional climate simulations is used to examine projected changes in the frequency, timing and spatial distribution of synthetic severe convective storm (SCS) detections based on peril proxies across three 15‐year epochs—1990–2005, 2040–2055 and 2085–2100—under intermediate and pessimistic emissions scenarios, including the first mid‐century projections of SCS activity,...
Diagnosing Linearity Along the Carbon Cascade in Terrestrial Biosphere Models and ObservationsNARA Subscribed
Elevated carbon dioxide (eCO 2 ) acts as a fertiliser for photosynthesis, driving an increase in gross primary production (GPP). However, it is unclear how effectively increased GPP propagates along the ‘carbon (C) cascade’ to increase net primary production (NPP) and vegetation C stocks ( C veg ) in different plant compartments. Vegetation models were criticised for being overly sensitive to photosynthesis (source‐driven), ne...
Residential gardens provide significant opportunities for biodiversity conservation. They cover substantial portions of urban landscapes, and it is well-established that wildlife species respond to specific habitat characteristics of residential gardens such as vegetation structure. However, wildlife responses to the full suite of landscaping decisions comprising the intentional creation of a garden for wildlife are less well-...
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...
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...
Does acute stress induced via cold water immersion increase blood THC concentrations in regular cannabis users?NARA Subscribed
Rationale Δ 9 -tetrahydrocannabinol (THC), the principal intoxicant in cannabis, is a highly lipophilic substance that is readily stored in fat. Preclinical research suggests that fat-stored THC can be released into circulation under lipolytic conditions, such as stress. However, compelling evidence of this phenomenon is lacking in humans. Objectives Here, we investigated the effects of acute stress on blood (plasma) THC (and...