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Can Substituting Biochar for Peat Maintain Southern Pine Seedling Quality and Reduce Nursery Carbon Emissions?NARA Subscribed
Peat extraction for nursery substrates contributes to carbon emissions and peatland destruction, highlighting the need for sustainable alternatives such as biochar. In this study, we evaluated how biochar substitution of peat (0–100% by volume) combined with four fertilizer rates (0, 0.5 × , 1 × (standard), 2 ×) affected seed germination, seedling survival, total seedling biomass, root-to-shoot biomass ratio (RSR), and CO₂ flu...
Longitudinal lipidomic markers of cardiac aging and risk of coronary heart disease in American Indians: the Strong Heart Family StudyNARA Subscribed
Age-related decline in left ventricular (LV) diastolic function is a hallmark of cardiac aging and an early precursor to cardiovascular disease. While dyslipidemia is a known driver of coronary heart disease (CHD), the molecular pathways linking lipid metabolism to cardiac aging and subsequent CHD risk remain poorly understood. Furthermore, longitudinal lipidomic profiling of cardiac aging in large human populations has not be...
Canada's Forests Are Shifting From a Recovery‐Driven Carbon Sink to a Disturbance‐Driven Carbon SourceNARA Subscribed
Canada's terrestrial ecosystems are critical to the global carbon cycle and are responding to unprecedented climate change and wildfire disturbance. However, our understanding of Canada's historical (~1920—present) carbon cycle is incomplete. There are also no published physically coherent (i.e., those that respect conservation laws) wall‐to‐wall estimates of all major carbon pools and fluxes for Canada. Existing assessments v...
Genomic Prediction of Disease Resistance Provides a Path to Marker Assisted Restoration in a Wetland Foundation Tree SpeciesNARA Subscribed
Tree species worldwide are under threat from non‐native pathogens that impact forests and the ecosystem services they provide. Myrtle rust, caused by Austropuccinia psidii , is one example, first detected in Australia in 2010. This fungal pathogen infects immature tissue from a wide range of Myrtaceae hosts, including the wetland foundation species Melaleuca quinquenervia . Durable restoration action for this species would pre...
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...