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A proper theoretical description for unconventional superconductivity in iron-based compounds remains elusive. Here, the authors, to capture the electron correlation strength and the role of Fermi surfaces, report ARPES measurements of three iron chalcogenide superconductors to establish universal features.

Magnetic interactions in solids are usually short-range or else they involve itinerant electrons. Here, the authors evidence a long-range magnetic coupling mediated by orbital moments in a polar spacer layer of nonmagnetic insulating oxide, with a sign which oscillates with spacer thickness.

Ferromagnetic systems produced by the transition metal doping of semiconductors may be used as components of spintronic devices. Here, a new ferromagnet, Li_1+y(Zn_1-xMn_x)As, is prepared in bulk quantities and shown to have a critical temperature approaching 50 K.

The understanding of charge density wave (CDW) correlations in cuprate superconductors remains hampered due to the lack of scattering phase information. Here, Chen et al. discover a reproducible CDW domain memory effect upon repeated cycling to temperatures well above the CDW ordering temperature.

The authors present SVclone, a computational method for inferring the cancer cell fraction of structural variants from whole-genome sequencing data.

Aqueous Zn-ion batteries are promising devices but their energy storage mechanism remains elusive. Now it is shown that these involve a catalytic mechanism based on water dissociation.

Ytterbium oxide buffer layer for use in perovskite solar cells yields a certified power conversion efficiency of more than 25%, which enhances stability across a wide variety of perovskite compositions.

Chronic wounds significantly diminish quality of life. Here, the authors developed a wearable LED device and sprayable fibrin gel for safe home use. The LED device and fibrin gel effectively eradicated microbes and improved wound healing, as validated in infected diabetic wounds in mice and minipigs

Alternating copolymerization of cyclic anhydrides and epoxides is an interesting platform for the synthesis of polyesters from renewable resources, but the near irreversibility of the copolymerization makes it challenging to develop chemically recyclable polyesters with easy-to-tune structure. Here, the authors develop a recyclable polyester library from alternating copolymerization of aldehyde and cyclic anhydride.

It is unclear how often genetic mosaicism of chromosome X arises. Here, the authors examine women with cancer and cancer-free controls and show that X chromosome mosaicism occurs more frequently than on autosomes, especially on the inactive X chromosome, but is not linked to non-haematologic cancer risk

Analysis of cancer genome sequencing data has enabled the discovery of driver mutations. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium the authors present DriverPower, a software package that identifies coding and non-coding driver mutations within cancer whole genomes via consideration of mutational burden and functional impact evidence.

The authors report that the metallic spin-1/2 chain compound Ti₄MnBi₂ forms near a quantum critical point with inherent frustration. They identify strong 1D spin and 3D electron coupling that should stimulate the search for materials exhibiting a 1D Kondo effect and heavy fermions.

Enhancing the superconducting temperature is often the main driver of synthetic studies of novel superconducting materials. Now, an approach yielding an air-stable iron selenide system that superconducts up to 40 K is reported.

With the generation of large pan-cancer whole-exome and whole-genome sequencing projects, a question remains about how comparable these datasets are. Here, using The Cancer Genome Atlas samples analysed as part of the Pan-Cancer Analysis of Whole Genomes project, the authors explore the concordance of mutations called by whole exome sequencing and whole genome sequencing techniques.

Integrative analyses of transcriptome and whole-genome sequencing data for 1,188 tumours across 27 types of cancer are used to provide a comprehensive catalogue of RNA-level alterations in cancer.

This work employs nano- to microscale characterization to identify different structural change pathways associated with non-homogeneous reactions within the particles, and explores differences in the failure mechanisms of lithium-rich transition metal oxide materials at different current densities.

Shortening the inter-spin distance is an effective way to enhance magnetic coupling. However, it is typically challenging to change the inter-ion distance in most magnetic systems. Here, Huang et al present a strategy for enhancing magnetic interactions, by confining a molecular magnetic system inside a carbon fullerene cage, leading to enhanced magnetic properties.

Cuprate superconductors are created by adding electrons or holes to a ‘parent’ compound. They have dissimilar phase diagrams and the asymmetry is further highlighted by unexpected collective modes measured using resonant inelastic X-ray scattering.

The Earth’s mantle transition zone may play a key role in large-scale intraplate magmatism and plate tectonics. Here, the authors provide evidence for the origin of continental flood basalts in this zone, by combining oxygen isotope and geochemical evidence from the late Cenozoic Chifeng volcanics of East Asia.

The CMS Collaboration reports the study of three simultaneous hard interactions between quarks and gluons in proton–proton collisions. This manifests through the concurrent production of three J/ψ mesons, which consist of a charm-quark–antiquark pair.

Whole-genome sequencing data for 2,778 cancer samples from 2,658 unique donors across 38 cancer types is used to reconstruct the evolutionary history of cancer, revealing that driver mutations can precede diagnosis by several years to decades.

A consensus cell type atlas for the fly brain provides both an intellectual framework and open-source toolchains for brain-scale comparative connectomics.

Dissolution of manganese from the cathode in lithium manganate based batteries is a major cause for the capacity decay. Here, the authors show a nanoscale surface-doping approach to mitigate the problem and to improve the battery capacity and cycleability.

Dense calcium imaging combined with co-registered high-resolution electron microscopy reconstruction of the brain of the same mouse provide a functional connectomics map of tens of thousands of neurons of a region of the primary cortex and higher visual areas.

Organic materials potentially offer a low-cost, flexible and environment-friendly route to spintronics. Here, the authors demonstrate an organic spin-valve device in which an electric field can control both the magnitude and the sign of magnetoresistance.

Analyses of 2,658 whole genomes across 38 types of cancer identify the contribution of non-coding point mutations and structural variants to driving cancer.

The MICrONS mouse visual cortex dataset shows that neurons with similar response properties preferentially connect, a pattern that emerges within and across brain areas and layers, and independently emerges in artificial neural networks where these ‘like-to-like’ connections prove important for task performance.

The ability to engineer novel protein structures has tremendous scientific and therapeutic impact. Here, authors develop a generative model acting upon an angular representation of protein structures to create high quality protein backbones.

6R-TaS2 is a natural van der Waals heterostructure formed by 1H- and 1T-phase TaS₂ layers, which can individually exhibit Ising superconductivity, correlated states and charge density waves. Here, the authors show experimental evidence of emergent nematic Ising superconductivity with simultaneous hidden magnetism (extrinsic anomalous Hall effect and Kondo screening) in 6R-TaS₂ under 30 K.

Neural Decomposition (NEURD) is a software package that decomposes neuronal data from high-resolution electron microscopy volumes into feature-rich graph representations to facilitate analysis for neuroscience research.

Two dimensional materials are promising for electronic applications, which await the exploration of cooperative phenomena. Here, Liu et al. report switchable ferroelectric polarization in thin CuInP₂S₆film at room temperature, demonstrating good memory behaviour with on/off ratio of ∼100 based on two-dimensional ferroelectricity.

There’s an emerging body of evidence to show how biological sex impacts cancer incidence, treatment and underlying biology. Here, using a large pan-cancer dataset, the authors further highlight how sex differences shape the cancer genome.

Whole-genome sequencing data from more than 2,500 cancers of 38 tumour types reveal 16 signatures that can be used to classify somatic structural variants, highlighting the diversity of genomic rearrangements in cancer.

An analysis of 2,954 genomes from 38 cancer subtypes identified 19,166 retrotransposition events in 35% of samples. Aberrant LINE-1 retrotranspositions can lead to the deletion of tumor-suppressor genes as well as the amplification of oncogenes.

Cancers evolve as they progress under differing selective pressures. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, the authors present the method TrackSig the estimates evolutionary trajectories of somatic mutational processes from single bulk tumour data.

3D printing pore-free complex metal parts remains a challenge. Here, the authors combine in-situ imaging and simulations to show thermocapillary force can eliminate pores from the melt pool during a laser powder bed fusion process.

A micronuclear battery is built based on an autoluminescent americium–terbium compound that couples radioisotopes with energy transducers at the molecular level, resulting in an 8,000-fold enhancement in energy conversion efficiency.

Although superconductivity hasn't been observed in a sheet of graphene it is found in metal intercalated graphite. A high-resolution ARPES study of CaC₆ conducted by Yang et al.provides strong clues as to the origin of superconductivity in these compounds and of ways to induce superconductivity in graphene.

Although LaAlO₃ and SrTiO₃ are both insulators, when they are brought together at a (100) interface, a highly conducting two-dimensional electron gas forms between them. Annandi et al.show that this also happens at a (110) interface, counter to expectations that it should not.

Understanding deregulation of biological pathways in cancer can provide insight into disease etiology and potential therapies. Here, as part of the PanCancer Analysis of Whole Genomes (PCAWG) consortium, the authors present pathway and network analysis of 2583 whole cancer genomes from 27 tumour types.

A pan-cancer genomic analysis reports the effects of structural variations on chromatin domains (TADs). Most TAD disruptions do not result in appreciable changes in expression of nearby genes.

Many tumours exhibit hypoxia (low oxygen) and hypoxic tumours often respond poorly to therapy. Here, the authors quantify hypoxia in 1188 tumours from 27 cancer types, showing elevated hypoxia links to increased mutational load, directing evolutionary trajectories.

A vanadium-based lithium-rich disordered rock salt oxide is shown to work as a low-potential anode with rapid intercalation kinetics for lithium-ion batteries.

The fate of high-energy degrees of freedom, such as spin-orbit interactions, in the coherent state of Kondo lattice materials remains unclear. Here, the authors use resonant inelastic x-ray scattering in CePd₃ to show how Kondo-quasiparticle excitations are renormalized and develop a pronounced momentum dependence, while maintaining a largely unchanged spin-orbit gap.

A long- and short-read barley pan-transcriptome assembled from 20 diverse barley genotypes offers insights into genotype- and tissue-dependent gene expression and function.

Ice cores are unique climate archives, but their dating can be challenging. Here, the authors have realized a method for counting ⁸¹Kr atoms in 1-kg polar ice-core samples, enabling access to climate information of the past million years in deep ice.

In Li-ion batteries, single crystalline cobalt-free lithium transition metal oxides are less understood than their polycrystalline counterparts. Here, authors show that the absence of cobalt in single crystalline oxides results in structural degradation that ultimately degrades battery performance.

To unlock the potential of Mn-based cathode materials, the fast capacity fading process has to be first understood. Here the authors utilize advanced characterization techniques to look at a spinel LiMn₂O₄ system, revealing that a combination of irreversible structural transformations and Mn dissolution takes responsibility.

The authors realize low-pressure-driven polarization switching in PbTiO₃ membranes by leveraging their structural tunability and substrate elasticity, enabling ferroelectric field-effect transistors on silicon, operatable mechanically and electrically.

Early intermittent feeding of mice with a high-cholesterol Western-type diet accelerates atherosclerosis compared with late continuous exposure to the Western-type diet, despite similar cumulative circulating LDL-C levels.