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Electrocatalysts for CO₂ reduction are typically prepared and optimized ex situ before the reaction begins, but during reactions they may undergo changes that lower their performance. Here the authors show that active Cu catalysts can be formed on a recoverable basis and removed in situ during the CO₂ reduction reaction, improving the stability of the system.

Thermal lepton pairs are ideal probes for the temperature of quark-gluon plasma. Here, the STAR Collaboration uses thermal electron-positron pair production to measure quark-gluon plasma average temperature at different stages of the evolution.

A new artificial intelligence model, DeepSeek-R1, is introduced, demonstrating that the reasoning abilities of large language models can be incentivized through pure reinforcement learning, removing the need for human-annotated demonstrations.

Model thiophene-decorated nickel porphyrins are synthesized to examine how sulfur promotes CO₂-to-CO conversion and tandem CO₂-to-C₂ product conversion in electrocatalytic CO₂ reduction. Combined theoretical and experimental analyses show that thiophene substituents generate a ligand hole character that modulates the nickel-centred electronic structure, enhancing overall catalytic performance.

The Einstein Probe has discovered a fast X-ray transient, EP240414a, associated with a broad-lined type Ic supernova. Its unusually soft spectrum and weak jet add to the diversity of stellar deaths and suggest a previously unknown Wolf–Rayet star explosion mechanism.

Indonesian cattle are unique due to their history of admixture involving both zebu and banteng. Here, Wang et al. identify ~3.5 million novel introgressed SNP variants and provide a genomic map of banteng introgression within and across many cattle breeds, each with unique introgression histories.

Native crystallographic defects are often introduced during synthesis of battery materials, but has been overlooked. Here, using in situ synchrotron X-ray probes and electron microscopy, the authors have revealed their adverse effect during battery operation.

Vasomotor function is regulated by the autonomic nervous system, but its electrophysiological basis remains poorly captured, especially post-stenting. Here, the authors develop a bioadhesive bioelectronic interface for precise monitoring and modulation of vasomotor activity.

NV center-based quantum sensors integrated into diamond anvil cells have enabled magnetic imaging under high pressure but are less suited for studying magnetic van der Waals materials. Here, the authors demonstrate magnetic imaging of micrometer-sized flakes of 1T-CrTe2 under high pressure using spin-centers in a thin hBN layer.

Standard approaches for identifying pleiotropic genetic variants may lead to spurious results. Here the authors present a new statistical method and show that it uncovers five genes linked to metabolites in METSIM participants, which were previously undetected by existing methods.

Acetyl-CoA synthetases have been proposed as targets for development of new antimicrobial drugs. Here, Jezewski et al. identify isoxazole-based compounds with activity against the pathogenic fungus Cryptococcus neoformans, and describe their mechanism of action as inhibitors of fungal acetyl-CoA synthetases.

An EC-NBI-based CAD system with advanced multi-stage pre-training fills endoscopy’s real-time diagnosis gap for colorectal lesions. It was shown to outperform other supervised methods and guides real-time biopsies.

An approach that integrates electrochemical CO₂ reduction and biological denitrification provides a new solution for nitrogen removal, where the formate obtained from CO₂ is used directly as the carbon source in the denitrification process in wastewater treatment.

The death of massive stars has traditionally been discovered by explosive events in the gamma-ray band. Liu et al. show that the sensitive wide-field monitor on board Einstein Probe can reveal a weak soft-X-ray signal much earlier than gamma rays.

This study introduces the Cattle Cell Atlas, a single-cell expression resource including 1,793,854 cells from 59 tissues. Integrative analyses leveraging this atlas provide insights into the biology underlying bovine monogenic and complex traits.

The insertion of thin layers of cobalt can stabilize β-tungsten under back-end-of-line thermal constraints, allowing a 64-kb spin–orbit torque magnetic random-access memory to be fabricated that offers a spin–orbit torque switching of 1 ns, data retention of more than 10 years and a tunnelling magnetoresistance of 146%.

Using extended-gate capacitive coupling and diode connection, stretchable biosensors with a built-in differential circuit design can be created that can offer low signal distortion under bias stress instability, uniaxial strain, compression and temperature variations.

Traditional methods for tuning the dimensions of organic electronic device structures often rely on cumbersome processes with limited resolution. Here, the authors report ultraviolet irradiation in ambient conditions for tuning structural parameters for organic small molecule hole transport layers.

Experiments under upper-tropospheric conditions map the chemical formation of isoprene oxygenated organic molecules (important molecules for new particle formation) and reveal that relative radical ratios control their composition

The synthesis of atom-thin amorphous films remains challenging as their thermodynamically favourable grains are neither two dimensional nor layered. Here a droplet-driven nanoribbon-to-film growth strategy is reported to achieve amorphous metal chalcogenides at the single-layer limit.

Managing power exhaust in fusion reactors is a key challenge, especially in compact designs for cost-effective commercial energy. This study shows how alternative divertor configurations improve exhaust control, enhance stability, absorb transients and enable independent plasma regulation.

While Bell inequalities have been violated several times—mostly in photonic systems—their violations within particle physics experiments are less explored. Here, the BESIII Collaboration showcases Bell-violating nonlocal correlations between entangled hyperon pairs.

The quark structure of the f₀(980) hadron is still unknown after 50 years of its discovery. Here, the CMS Collaboration reports a measurement of the elliptic flow of the f₀(980) state in proton-lead collisions at a nucleon-nucleon centre-of-mass energy of 8.16 TeV, providing strong evidence that the state is an ordinary meson.

Here, the authors use a simple equation to study how genes and their regulators switch on/off over time, across the whole genome in tissues and cells. Most changes are gradual, but some genes switch quickly. Their AI model can predict temporal gene activity directly from open DNA regions, with no extra data.

EMO integrates DNA sequence and chromatin accessibility data to predict how noncoding variants regulate gene expression across tissues and single cells, enabling context-aware personalized insights into genetic effects for precision medicine.

The synthesis of crystalline 2D polymers typically relies on reversible dynamic covalent reactions, but achieving 2D polymers through irreversible carbon-carbon coupling reactions remains a formidable challenge. Here, the authors present an on-liquid surface synthesis method for constructing diyne-linked 2D polymers.

The hydrovoltaic effect offers a promising route for ion sensing but is limited by a long response time. Here, the authors leverage rapid ion transport within nanochannels to achieve a high voltage output of 4.0 V with a response time of just 0.17 s.

A variational-autoencoder-based diffusion architecture that enables topological controls on the diffusion-based protein structure generation is proposed. As a result, novel folds of mainly beta proteins can be designed with experimental validation.

Finite momentum superconducting pairing refers to a class of unconventional superconducting states where Cooper pairs acquire a non-zero momentum. Here the authors report a new superconducting state in bulk 4Hb-TaS₂, where magnetic fields induce finite momentum pairing via magnetoelectric coupling.

Biotic-abiotic hybrid systems are promising for solar-to-chemical conversion, but it remains challenging to achieve atomically precise interface contact. Here, the authors report a general strategy of facilitating direct electron uptake via building single-atom bridges across biotic-abiotic interfaces to enhance solar-driven hydrogen production.

An ex vivo model and pre-clinical study in a brain-dead recipient provide enzyme-converted O organs to avoid hyperacute rejection in ABO-incompatible kidney transplant patients.

Authors demonstrate that Ig-like binders targeting the C-terminal of α-synuclein fibrils block fibrils-induced pathological activities, including neuronal aggregation and neuroinflammation, suggesting potential molecular avenues for future Parkinson’s disease intervention.

Tissue-specific mRNA or gene editing machinery delivery is achieved with lipid nanoparticles containing peptides with specific sequences, which tune the protein corona of the particles by mechanical optimization of peptide–protein binding affinities.

The authors demonstrate strain-induced morphotropic phase boundary-like nanodomains in lead-free NaNbO₃ thin films, enabling multi-state switching and large enhancements in dielectric susceptibility and tunability over a broad frequency range.

Investigating the inner structure of baryons is important to further our understanding of the strong interaction. Here, the BESIII Collaboration extracts the absolute value of the ratio of the electric to magnetic form factors and its relative phase for e + e − → J/ψ → ΛΣ decays, enhancing the signal thanks to the vacuum polarisation effect at the J/ψ peak.

A combination of adenovirus-vectored and subunit protein intranasal vaccine enhances immune response against SARS-CoV-2 variants in animal models and humans.

Photoelectrochemical etching relies on light-driven carrier migration to catalyze reactions on semiconductor surfaces. Here, the authors show that lateral photon gradients induce anomalous etching of undoped semiconductor materials.

The semileptonic decay channels of the Λc baryon can give important insights into weak interaction, but decay into a neutron, positron and electron neutrino has not been reported so far, due to difficulties in the final products’ identification. Here, the BESIII Collaboration reports its observation in e+e- collision data, exploiting machine-learning-based identification techniques.

The realization of high-performance flexible perovskite/crystalline-silicon tandem solar cells requires efficient photocarrier transport and mitigation of residual stress. Here, authors reveal the critical role of perovskite phase homogeneity, achieving flexible devices with efficiency of 29.88%.

Replacing animal feathers and wool with synthetic materials can ameliorate the ethical and environmental issues associated with the production of clothing designed to retain warmth. Here the authors present synthetic nanofibre textiles that combine wearability, comfort, lightness and thermal insulation.

Optically generated microwaves offer exceptionally low noise, crucial for radar and communications. Here, authors demonstrate a compact photonic chip-based interleaver multiplying pulse rates of mode-locked lasers to 14 GHz, significantly enhancing microwave power and reducing phase noise.

Zinc-ion batteries face challenges like dendrite formation, limiting their performance. Here, authors reveal that high-current deposition forms (002) textured Zn, enhancing cycling life, and propose guidelines for optimizing battery cycling protocols based on advanced in situ XRD analysis.

Antibody–bottlebrush conjugates expand the options for drug cargos compared to antibody–drug conjugates.

This work proposes a wet-chemical etching assisted aberration-enhanced single-pulsed femtosecond laser nanolithography, named “WEALTH”, for manufacturing small-size, large-area, deep holey nanostructures, promising for emerging nanophotonic devices.

The calorimetric determination of enthalpies of mixing in multi-component molten salt systems often relies on empirical models that lack physically interpretable parameters. Here, the authors use the molecular interaction volume model (MIVM) to integrate experimentally measured enthalpies and solvation structures from ab initio molecular dynamics simulations to extrapolate excess Gibbs energy and determine the compositional dependence of La³⁺ activity in the LaCl₃-(LiCl-KCl) system.

The exact mechanism for superconductivity in iron-based superconductors remains elusive, but is thought to involve complex interactions between many orbitals. Using angle-resolved photoelectron spectroscopy, Liuet al. report the electronic structure of the single-layer parent compound FeSe.

Entanglement was observed in top–antitop quark events by the ATLAS experiment produced at the Large Hadron Collider at CERN using a proton–proton collision dataset with a centre-of-mass energy of √s  = 13 TeV and an integrated luminosity of 140 fb⁻¹.

Despite observed routinely from spacecrafts landing on, e.g., lunar soil, the origin of radial streak patterns has been unclear up to now. Here, the authors report an experimental study of such instabilities in the coupled dynamics of rocket plumes and sand surfaces.

The ATLAS experiment at the Large Hadron Collider reports a search for charged-lepton-flavour violation in decays of Z bosons into a τ lepton and an electron or muon of opposite charge.