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Vaccines and clean water shortages continue to give rise to cholera outbreaks in Africa. Coordinated efforts to increase vaccine distribution and improve physical infrastructure are needed while considering future outbreaks and water demands due to conflicts and climate events.
Activated GPCRs signal through multiple pathways. Ligands that signal through a single pathway are highly valued. The authors demonstrate that tethering ligands to receptors via conjugation with binding nanobodies enables pathway-specific signaling.
Palladium-based catalysts are highly effective for the complete oxidation of methane. Here, the authors employ operando transmission electron microscopy, near-ambient pressure X-ray photoelectron spectroscopy, and density functional theory calculations to investigate the active state and catalytic function of Pd nanoparticles in methane oxidation.
Elevation of IL-6 during cancer progression has been shown to drive cancer cachexia, however, while brain dysfunction has been reported, the underlying mechanism is unclear. Here, the authors identify neurons in the area postrema as a mediator of peripheral IL-6 in preclinical models of cancer cachexia.
Mitochondrial tRNAs are less structurally stable than nuclear tRNAs, and their maturation pathway is unique. Here, the authors reveal how human mitochondrial precursor tRNAs are recognised, processed, methylated and prepared for full functionality in mitochondrial translation.
This study presents EMDiffuse, a software suite based on diffusion models which augments electron microscopy imaging. EMDiffuse enhances electron microscopy images and enables isotropic reconstruction of volume electron microscopy data, suitable for investigating biological nanostructures.
Modeled results show that rooftop solar reduced energy burden for most adopters in 2021 from a median of 3.3% to 2.6% with the average adopter seeing a 0.6 point ($691 annual) reduction in burden, accounting for costs, incentives, and savings.
Hematopoietic stem cells are generated during development, though how and when they become dormant long term-HSCs remains unclear. Here they show that retinoic acid receptor levels are regulated by a IκBα-PRC2 axis in HSCs, and that IκBα KO mice have HSCs that are fewer in number, but functionally and molecularly more dormant.
Room temperature phosphorescent polymers have potential in a range of applications, but achieving the desired properties can be challenging. Here, the authors report the development of such polymer materials by doping with polyaromatic hydrocarbons.
This study shows root growth increases in high temperature in multiple plant species along with reduced plant nitrogen (N) and phosphorus (P). This growth response is abolished by low N and P environments and mediated via the HY5-NRT1.1 gene module.
Copper nanoclusters have so far been limited in the types of organic transformations they can catalyze. Here the authors introduce a new NIR-II emissive anionic copper nanocluster with intrinsic photoredox activity, enabling efficient photocatalytic three-component radical couplings.
Tungsten trioxide (WO3) is considered the most promising photocatalyst for the highly selective oxidation of methane to formaldehyde, though the origins of its catalytic activity and reaction mechanism are still debated. Here, the authors use WO3 with {001} and {110} facets as model photocatalysts, demonstrating that the photocatalytic oxidation of methane to formaldehyde in WO3 depends on the surface structure, leading to different formaldehyde selectivity.
Results show meaningful variations in electric vehicle costs and emissions benefits across the United States, differing by vehicle category and charging systems: Direct Current Fast Charging, Battery Swapping, and Dynamic Wireless Power Transfer.
Enhancing the efficiency of solar-driven water splitting is challenging but highly interesting. Here the authors report a dual spin-controlled 2D/3D perovskite photoelectrode that achieves 12.55% efficiency by utilizing the chiral-induced spin selectivity phenomenon.
Miniature passive fliers are of interest, but there are challenges in controlling their motion. Here, the authors report the use of light-responsive thin films for optical control of the gliding of passive fliers.
A variant telomerase template demonstrates that human telomeres can tolerate significant degeneracy and remain functional. Once incorporated by telomerase, variant sequences can influence telomere length dynamics.
Patient derived tumor xenografts (PDXs) are important models for pre-clinical testing in cancer research and personalized medicine. PDXs often represent patient tumors with high similarity in terms of histology and driver mutations. However, certain limitations exist that warrant a detailed understanding of PDX heterogeneity and evolution. Hynds et al. demonstrate the relevance of primary tumor heterogeneity in PDX model establishment and explore multi-region sampling to determine the extent to which PDXs represent primary tumors.
Empirically observed regiochemistries indicate that the CF2H radical has a nucleophilic character similar to alkyl radicals, but the CF3 radical is electrophilic in reactions with heterocycles. Here, the authors report DFT calculations, reproducing experimental selectivities and leading to an explanation of this difference.