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Bacterial community profiling in artificial lagoons and groundwater of Qatar using a MALDI-TOF MS approachNARA Subscribed
In Qatar, potable water depends largely on desalination, while groundwater and treated wastewater are used for irrigation, with the latter having limited reuse opportunities that have led to the establishment of artificial storage lagoons across the country. Those artificial lagoons can act as microbial reservoirs, raising interest in their potential interaction and possible infiltration into the groundwater aquifers in Qatar....
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...
Success of restoration strategies in preventing extirpation of 2 critically endangered coral speciesNARA Subscribed
An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral ( Acropora palmata ) and staghorn coral ( Acropora cervicornis ), were severely affected. These species have been the primary focus of reef restoration in Florida for decades. Substantial losses of these species occurred in outplanted populations, in o...
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...
Background Controlled laboratory studies have demonstrated that breaking up sitting can reduce postprandial glucose in South Asian adults. This study examined the effects of substituting sitting with standing and walking on interstitial glucose in South Asian individuals under free-living conditions. Methods South Asian adults ( n = 14 [50% male]; body mass index 26.5 ± 0.8 kg·m −2 ) aged 41 ± 3 years completed two, 4-day regi...
Reduced intraspecific variation in lake trout food webs under warmer temperatures and smaller ecosystem sizesNARA Subscribed
Food web theory has illustrated that mobile top predators, such as lake trout ( Salvelinus namaycush ), can be potent stabilizers of food webs due to their ability to shift foraging behaviors in response to changing conditions. Consistent with this, research has demonstrated that mean lake trout food web attributes (i.e., trophic position and nearshore coupling) structurally change across environmental gradients; however, intr...
A retrospective comparison of [18F]FDG radiation dose following a transition from conventional to long axial field of view PET/CTNARA Subscribed
Long axial field of view (LAFOV) PET/CT scanners (> 1 m axial FOV) provide an order of magnitude higher system sensitivity compared with conventional scanners. This creates opportunities for significant radiation dose reductions for patients, without loss of diagnostic image quality or increased scan time. This study aimed to investigate changes in radiation dose received by patients undergoing whole-body [ 18 F]FDG PET/CT stu...