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Ultrafast electron microscopy can be used to analyse transient phases of a system, and understanding the various electron-electron interactions are key to interpreting the data. Here, the authors investigate the mechanisms behind free electron-plasmon interactions and their contribution to ultrafast electron dynamics at metallic surfaces.

A magnetic-spectrometer-free method for electron–proton scattering data reveals a proton charge radius 2.7 standard deviations smaller than the currently accepted value from electron–proton scattering, yet consistent with other recent experiments.

Here the authors show how the DNA-sensing cGAS–STING pathway activates NF-κB and inflammatory gene expression with delayed kinetics via post-Golgi endolysosomal signaling.

Gene editing of hematopoietic stem and progenitor cells offers promise as a curative treatment for chronic granulomatous disease (CGD). Here, the authors develop a D10A Cas9n based gene editing strategy to treat CGD with no detectable off-target activity or chromosomal translocations.

The ozonolysis of α-pinene is important in atmospheric secondary organic aerosols formation. Here, the authors use a molecular dynamics guided reaction discovery approach and identify endoperoxide-to-alkoxy isomerization as a key branching point in the mechanism.

Measurement of the asymmetry in the parity-violating scattering of polarized electrons on protons gives the weak charge of the proton as 0.0719 ± 0.0045, in agreement with the standard model.

The authors report findings from the MOBILIZE trial, which found that exercise therapy and self-management support improved patient-reported quality of life in individuals with multiple chronic conditions.

During starvation, muscle strength and endurance, are still critical for survival. Seven days of complete fasting did not reduce maximal strength in leg muscles, but maximal endurance capacity was decreased because carbohydrate oxidation was restrained.

Helium has not, to date, been observed crystallographically. Here, the authors report the first crystallographic observation of a helium atom, encapsulated in a fullerene, and show that it exerts a small but detectable influence on the electronic structure of a coencapsulated nitrogen atom.

Trapped in rock fractures miles below the surface are saline waters that have been isolated for millions of years. In these most remote environments exists an active turnover of dissolved organic molecules, an active carbon cycle.

The advantage of living in cities compared with rural areas with respect to height and BMI in children and adolescents has generally become smaller globally from 1990 to 2020, except in sub-Saharan Africa.

A new study finds that the North East Greenland ice stream is not as stable as previously thought and that this will affect its future evolution.

Wenzel et al. detect radio signatures of two forms of cyanopyrene, a small molecular sheet of carbon, which can be used as indicators of the abundance of pyrene. Their findings suggest that small polycyclic aromatic hydrocarbons must be formed in or transported to the cold interstellar medium.

A fundamental mechanism for singlet fission, a process that may govern instances of multi-exciton generation, has yet to be described. Sophisticated calculations now show that singlet fission in pentacene proceeds through the conversion of a photoexcited state into a dark state of multi-exciton character that subsequently splits into two triplets.

Successful skeletal muscle regeneration involves a complex and finely tuned inter-cellular response. Here, by using spatial transcriptomics, the authors identify an intercellular communication axis between fibro-adipogenic progenitors and macrophages to enhance macrophage-mediated tissue repair.

Analyses of genome and exome sequencing data identify rare coding and structural variants associated with atrial fibrillation and highlight genetic links between atrial fibrillation and cardiomyopathies.

Here the authors report that DMDA-PatA, an anti-tumor compound, functions as a mRNA-selective translational inhibitor. This drug clamps the target eIF4A and DDX3 RNA-binding proteins on the GNG RNA motif, providing steric hindrance for scanning ribosomes.

Impaired gut barrier function is a central driver of alcohol-related liver disease. This study indicates that the postbiotic ReFerm® improves gut barrier function and reduce liver stiffness and liver fibrosis, suggesting the gut barrier function as a potential treatment target.

Despite widespread use of azides across material science and various areas across chemistry, the underlying biosynthetic pathways for its formation have so far been unknown. Now, a promiscuous ATP-utilizing enzyme, Tri17, capable of synthesizing various azide molecules has been identified. Biochemical, structural and computational analyses support a potential molecular mechanism for azide formation by Tri17.

A combination of statistical analysis, quantum mechanics calculations and biophysical analytical approaches shows that methionine oxidation increases its interactions with aromatic side chains, interactions that are important for intraprotein and interprotein interactions.

Here, the authors present the results of a randomised, double-blind, placebo-controlled trial testing whether clindamycin and live Lactobacillus crispatus CTV-05 (LACTIN-V) improve clinical pregnancy rates in IVF patients with abnormal vaginal microbiota, showing that successful treatment of vaginal dysbiosis was independent and not related to the reproductive success.

The arcuate fascicle connection with the middle temporal gyrus has been considered unique to humans. Using high-resolution diffusion MRI, the authors systematically show this connection in chimpanzees, suggesting a gradual evolution of the language network.

A fluorescent molecule is described that does not follow Hund’s rule and instead shows singlet and triplet excited states with inverted energy levels, leading to high-efficiency OLEDs with potential implications for optoelectronic devices.

Puzzarini and colleagues explore the computational characterization of medium-sized molecular systems using different spectroscopic techniques. The Primer provides essential information about the characteristics, accuracy and limitations of current computational approaches used for modelling spectroscopic phenomena with a focus on estimating error bars, limitations and coupling interpretability to accuracy.

Designing computational methods that can accurately predict useful material properties is an attractive alternative to cumbersome trial and error experimental approaches. Here, the authors present a computational method based on neural-network quantum states, which can reveal many-body quantum phenomena of a solid state system similar to first-principles calculations.

In this study, the authors compare the transmission dynamics of the Delta and Omicron SARS-CoV-2 variants using household data from Denmark. They find that Omicron has a higher secondary attack rate, and that the odds of infection with Omicron was higher than with Delta, particularly for vaccinated individuals.

In this study, the authors use household data from Denmark to investigate the transmissibility of the BA.1 and BA.2 Omicron SARS-CoV-2 subvariants. They find that the secondary attack rate was higher for BA.2, but that it had higher infectiousness only when cases were not vaccinated.

The human skin is a highly complex organ comprising multiple tissue layers and diverse cell types. Here, the authors present a spatially-resolved quantitative proteomic atlas of the healthy human skin, characterizing the protein profiles of four skin layers and nine cell types.

Coccolith-associated polysaccharides (CAPs) are central for the biomineralization of marine algae. Here, Leeet al. show that CAPs can be isolated from extant and fossil samples and that their uronic acid content can be used as a palaeoclimate proxy.

N-terminal acetylation is a common protein modification in eukaryotes. Here the authors show that in Arabidopsis, N-terminal acetylation is decreased by drought stress, that abundance of an N-terminal acetyltransferase is reduced by abscisic acid and that constitutive downregulation can confer drought resistance.

Measurements of the proton’s spin structure in experiments scattering a polarized electron beam off polarized protons in regions of low momentum transfer squared test predictions from chiral effective field theory of the strong interaction.

Gamma-ray ‘glows’ are long duration high-energy emissions from thunderclouds. Here, the authors present observations of these emissions using the ADELE array of detectors and suggest that gamma ray emissions are related to relativistic runaway electron avalanches.

Measurements of the proton’s generalized spin polarizabilities provide discriminating power between effective descriptions of the strong interaction at low energy.

Nanobowls represent building blocks of fullerenes and nanotubes as detected in combustion systems and deep space, but their formation mechanisms in these environments have remained elusive. Here, the authors explore the gas-phase formation of benzocorannulene and beyond to the C₄₀ nanobowl.

The ciliary transition zone (TZ) regulates the protein and membrane composition of the primary cilium. Here the authors identify the kinesin-3 motor protein KIF13B as a regulator of TZ membrane composition that controls the ciliary accumulation of Smoothened, which is involved in activation of Sonic hedgehog signalling.

Understanding the emergence, evolution, and transmission of antibiotic resistance genes (ARGs) is essential to combat antimicrobial resistance. Here, Munk et al. analyse ARGs in hundreds of sewage samples from 101 countries and describe regional patterns, diverse genetic environments of common ARGs, and ARG-specific transmission patterns.