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The precise brain circuits underlying drug reward memory remain unclear. Here, authors show that the interconnected wirings between medial prefrontal cortex and claustrum contribute to the encoding and retrieval of methamphetamine reward memory in a pathway-specific manner.

Ancient genomes from Neolithic rice-farming populations at Baligang reveal a demographic shift around 4,200 years ago and a 5,000-year-old patrilineal social structure, providing insights into the population history of East Asia.

Tropical Pacific hydrology affects the global climate through the strength of the Pacific Walker Circulation. Yanet al. reconstruct variations in the Pacific Walker Circulation in the South China Sea over the last millennium and find that less precipitation fell during warmer and more rainfall during cool periods.

Non-uniform noise introduces bias in multivariate analysis of mass spectrometry data. Here, the authors study the noise structure of the widely used Orbitrap to develop a data scaling method that reduces this bias resulting in clearer separation of chemical information from noise in biological data.

The spatial architecture of the lung cancer microenvironment could influence the survival outlook and therapeutic options of patients. Here the authors find distinct patterns and composition of immune cells when comparing lung adenocarcinomas and lung squamous cell carcinomas, paving way for precision immune therapy according to histological subtype.

BHLHE40 promotes allergic asthma progression in mice via NRTN downregulation in macrophages, revealing a novel pathway in immune regulation.

The role of gut microbiota in acute myeloid leukaemia (AML) remains unclear. Here, the authors show disordered gut microbiota and reduced butyrate cause intestinal barrier damage in AML mice, with increased plasma LPS that accelerates AML progression.

Reducing membrane thickness to nanometre scale should increase the throughput of gas separation sieves. Here, the authors report a sieving membrane composed of two-dimensional metal-organic framework nanosheets, exhibiting both high permeation flux and thermally switchable behaviour.

Hong et al. report 2D perovskite lateral homojunction consists of ordered and disordered phases, achieved by organic cation doping induced phase pinning, built upon which they develop tuneable optical properties under external stimuli and directional exciton diffusion in the homojunctions.

Federated learning, a method for training artificial intelligence algorithms that protects data privacy, was used to predict future oxygen requirements of symptomatic patients with COVID-19 using data from 20 different institutes across the globe.

The toxicity of heavy metals for MRI contrast agents is an issue. Here, the authors report on the development of conjugated polymers nanoparticles based on paramagnetic polypyrrole to generate T2 MRI contrast effects by changing the interactions between polarons and water protons.

A direct lead-halide perovskite CT imager has been demonstrated. The detector arrays have 980 μm absorber thickness and exhibit detection quantum efficiency of 80% and noise-equivalent dose of 153 pGy_air.

The mechanical signals of the laryngeal vocal organ have not been well utilized by human speech processing technology. The authors develop a prototype of a wearable artificial throat that can sense speech- and vocalization-related actions. The results suggest a new technological pathway for speech recognition and interaction systems.

Differential spectrometers recognise different wavelength via their differential photodetector responsivity. The authors combine an 8-pixel hemispherical perovskite photodetector with neural network algorithms to realise 3D trajectory tracking and 2D location tacking with colour classification.

Multimodal biological data is challenging to analyze. Here, the authors develop UnitedNet, an explainable deep neural network for analyzing single-cell multimodal biological data and estimating relationships between gene expression and other modalities with cell-type specificity.

The water stability of perovskites remains challenging due to their intrinsic ionic nature. Here, the authors present water stable perovskite X-ray imager driven by strong cation-π interactions between organic cations and a complete release of microstrain during dimension transformation process.

DNA 5-hydroxymethylcytosine (5hmC) modification is associated with gene transcription and used as a mark of mammalian development. Here the authors report a comprehensive 5hmC tissue map and analysis of 5hmC genomic distributions in 19 human tissues derived from 10 organ systems, thus providing insights into the role of 5hmC in tissue-specific development.

Polar-faceted nanocrystals often have complex atomic surface configurations that are very difficult to characterize. Here, the authors are able to determine detailed structural information about the polar facets of ceria nanocubes by using ¹⁷O and ¹H solid-state NMR spectroscopy, in combination with density functional theory calculations.

Hemispherical photodetectors allow wide sight angle without the complex optical paths of fisheye lenses. Here, Wei et al, report a spray-coated quasi-two-dimensional perovskite hemispherical photodetector with wavelength selective response from the visible to the near-infrared.

Jun Wang and colleagues report the genome sequence of the cucumber. The cucumber genome is the seventh plant genome sequence to be reported and was assembled with a combination of traditional Sanger and next-generation sequencing methods.

Although the incidence of peptic ulcer disease and ulcer complications has decreased over the past few decades, there has been an increase in ulcer bleeding, especially in elderly patients. The authors of this Review consider the current status of understanding, diagnosis and treatment of peptic ulcer disease, and management issues that remain to be solved.

Lupus nephritis can cause acute or chronic kidney damage. YY1, as a ubiquitously expressed transcription factor in mammals, plays a role in inflammation. This study shows that overexpression of YY1 reduces apoptosis, inhibits inflammation, and affects the ratio of Th17/Treg cells by regulating the IFN-γ/Fra2/PARP-1/FOXO1 axis, thereby repressing lupus nephritis-induced kidney damage.

Phan et al. assess the presence of human endogenous retrovirus K (HERV-K) in the serum and brain samples of individuals with behavioral variant frontotemporal dementia (bvFTD) with TDP-43 pathology, as seen in amyotrophic lateral sclerosis. The authors show HERV-K is associated with manifestations of bvFTD with TDP-43 pathology.