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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.

A super-pangenome analysis incorporating 123 newly sequenced bryophyte genomes reveals that bryophytes exhibit a larger number of unique and lineage-specific gene families than vascular plants.

An asymmetric self-assembled monolayer improves the efficiency of perovskite/silicon tandem solar cells compared with symmetric self-assembled monolayers, resulting in a certified power conversion efficiency of up to 34.58%.

Conventional entrapped ¹²⁹Xe with low signal intensity limits in vivo applications. Here, the authors developed a MOF-based reporter that enhances signal intensity, achieves femtomolar detection, and enables chemical shift-encoded MRI in rat lungs.

The authors study nickelate superconductor Nd0.8Sr0.2NiO2 by angle-dependent transport. They find that the superconducting phase stiffness is anisotropic, and that electrical conductivity peaks along the direction with maximized phase stiffness.

The control of regulatory enzymes is essential for the modulation of biochemical cellular pathways. Here, the authors fabricate a tweezer-like DNA nanodevice to actuate the activity of an enzyme/cofactor pair, and are able to control enzyme inhibition and activation over multiple cycles.

The 2-oxoglutarate dehydrogenase complex (OGDHc) is a rate-limiting enzyme complex regulating the TCA cycle. Here, the authors use cryo-EM and cryo-ET to discern native structures of the whole complex and reveal its assembly mechanism.

A power conversion efficiency of 33.89% is achieved in perovskite/silicon tandem solar cells by using a bilayer passivation strategy to enhance electron extraction and suppress recombination.

Yang and colleagues present a small-molecule inhibitor for ADAR1 and show that its use is therapeutically beneficial in the context of prostate cancer.

Oxynitrides of transition metals are emerging materials with useful properties and improved stability over corresponding nitrides, but a full understanding of their anion ordering has been lacking. Now, a neutron and electron diffraction study of the perovskites SrNbO₂N and SrTaO₂N reveals the chemical principles for anion order and their potential influence on materials properties.

Targeted degradation has the potential to treat diseases associated with pathological protein build up. Here, the authors report on an oligo-PROTAC which degrades FUS, a protein associated with frontotemporal dementia, demonstrating delivery on DNA nanoflowers for increase blood-brain barrier crossing and retention.

A longitudinal analysis of the neutralizing antibody response dynamics in 214 COVID-19 convalescents up to 16 months after infection shows that despite substantial declines in antibody levels over time, they could still provide protection against circulating variants even after one year of infection in most individuals, although neutralizing activities were reduced, particularly against Beta, Delta and Mu SARS-CoV-2 variants.

The distinction of liver lesions is critical for the accurate diagnosis and treatment of liver cancer. Here, the authors develop LiLNet, a deep learning-based system to identify focal liver lesions as well as benign and malignant liver tumours from CT images with high accuracy across multiple patient cohorts.

Here, particulate matter metrics are assessed and associated with sand and dust storm health risks. The oxidative potential and the environmentally persistent free radicals of particulate matter could be used to develop effective sand and dust risk prevention in dust-prone countries.

Quartz is a well-known carcinogen of particular concern to industrial workers exposed to particulate quartz. Industrial atmospheric emissions across multiple sectors, however, are found to include respirable quartz, posing a threat to the public health of surrounding populations.

Recognition on sources of hexachlorobutadiene is needed for their global control. This study clarifies hexachlorobutadiene emission factors from 121 industrial plants assigned to 12 industries and establishes their global emission inventory.

Huanming Yang, Zhiming Cai, Jun Wang and colleagues report whole-exome sequencing of 10 clear cell renal cell carcinomas followed by a screen of ~1,100 genes in a total of 98 tumors. They found 12 new disease-associated genes and detected frequent alterations in the ubiquitin-mediated proteolysis pathway.

The first high-resolution (3.5 Å) structure of a full-length cyclic-nucleotide-gated channel, revealing an unconventional, voltage-insensitive voltage-sensor domain and a unique coupling mechanism between cyclic-nucleotide-binding and pore-opening.

In a prespecified interim analysis of the randomized, double-blind phase 3 COMPASSION-15 trial, patients with advanced HER2-negative gastric/GEJ cancer treated with the anti-PD-L1/CTLA-4 bispecific Ab cadonilimab plus chemotherapy showed significantly improved overall survival compared with patients treated with placebo plus chemotherapy as first-line treatment.

LC-MS-based proteomics often relies on data-dependent acquisition (DDA) for quality control. Here, the authors demonstrate that data-independent acquisition (DIA) outperforms DDA in detecting subtle changes in LC-MS status in large-scale quantitative proteomics experiments. They further prioritized 15 QC metrics and developed an AI model, implemented in a free software called iDIA-QC, for detecting LC-MS faults.

In this triple-arm, placebo-controlled phase 3 trial, first-line treatment of patients with extensive-stage small-cell lung cancer with the anti-PD-L1 benmelstobart, tyrosine kinase inhibitor anlotinib and chemotherapy (CT) showed improved survival outcomes compared with anlotinib and CT or CT alone.

Crossed-beam reactive scattering experiments of a nucleophilic substitution reaction show a dynamic isotope effect with a remarkable deviation from quasiclassical calculations, which is evidence for quantum dynamics in this ion-molecule reaction.

A confocal microscopy technique enables high-resolution intravital imaging over multiple hours.

The direct synthesis of light aromatics, particularly para-xylene (p-X), from syngas/CO₂ is gaining considerable attention, though enhancing the space-time yield (STY) of p-X remains a significant challenge. Here, the authors develop a dynamic ‘dual-engine-driven’ catalytic system that achieves a remarkably higher p-X STY by integrating ZnCr and FeMn with Z5@SiO₂ capsule zeolite.

Yaks have been subject to natural selection, human domestication and interspecific introgression during their evolution. Here, the authors have identified genomic structural variations and the linked genes involved in these processes in domestic yaks, to reveal new insight into genetic basis of phenotypic diversity.

A high-performance NO₂ gas sensor based on highly catalytic non-precious metal nitride TiN_x demonstrates excellent selectivity, sensitivity, and long-term stability, making it a leading candidate for environmental monitoring technology.

Carpinus fangiana exhibits intermediate morphology between C. viminea and Ostrya rehderiana. Here, the authors report that Carpinus sect. Distegocarpus likely originate through homoploid hybrid speciation (HHS) during the early divergence between Carpinus and Ostrya through genomic analyses.

Camptothecin is a monoterpene indole alkaloid with anti-tumor activity. Here, the authors assemble the genome of the camptothecin producing plant Camptotheca acuminata and provide insights into the evolutionary origin of camptothecin biosynthesis by comparing to the vinblastine and vincristine biosynthetic pathway in Catharanthus roseus.

Whether end-spectral bias for red and blue in the visual cortex inherits from the pre-cortical stage or emerges within V1 remains incompletely understood. Here, the authors revealed a feedforward mechanism of end-spectral bias which is mainly transmitted through parvocellular pathway.

The electrosynthesis of multicarbon products from CO₂ is a highly attractive way to utilize emitted CO₂. Here, the authors report in situ formed Cu⁰/Cu²⁺ interfaces from copper phosphate-based electrocatalysts for promoting selectivity toward multicarbon products through OC-CHO coupling.

GEMIN5, an RNA-binding protein, is required for formation of small nuclear ribonucleoproteins. Here, the authors identify loss of function mutations in GEMIN5 that are associated with a human neurodevelopmental disorder.

Recognition on sources of polyhalogenated carbazoles is needed to understand their environmental accumulation. Here, release of polyhalogenated carbazoles from 13 industries including 122 plants is identified and estimated.

Ferroelectric topological defects show emerging exotic physical properties, which are important for future nanoelectronic devices. Here, the authors demonstrate conductive metallic conduction channels in two types of topological defects, namely vortex and center cores.

The role of cations in the CO₂ electroreduction is crucial, but elusive. Here, the authors combine electrokinetic on a well-defined single-atom catalyst with grand canonical potential kinetics simulations to provide an in-depth study of the interaction of K ⁺ -ions with adsorbed CO₂⁻.

BES1 and BZR1 transcription factors are activated by the BRI1-BAK1 receptor complex during brassinosteroid signaling. Here the authors show that BES1-family members also act in anthers, downstream of another receptor-like kinase-mediated signaling pathway, EMS1-TPD1-SERK1/2, to promote tapetum development.

Scalable fabrication of coordinatively unsaturated metal-nitrogen is challenging. Here the authors report a general method for synthesize such material for CO2 electrochemical conversion at a high catalytic current of 10 A for more than 60 h stability using a 100 cm2 membrane flow cell.

This genome-wide association study on persistent hepatitis B virus (HBV) infection among Chinese confirms previously associated genetic loci while discovering a novel protective locus at 8p21.3. The study also demonstrates the nearby gene INST10 suppresses HBV replication in vitro.