Peking University

Ultrathin high-performance circular polarizers based on MoOCl2/NbOCl2 van der Waals heterostructures

Circularly polarized light (CPL) holds immense promise for diverse applications, including 3D displays, quantum information processing, biosensing, and optical imaging. However, high-performance, ultrathin, and easily integrable devices for CPL manipulation and discrimination rem...

Pareto Frontier of Neural Quantum States: Scalable, Affordable, and Accurate Convolutional Backflow for Strongly Correlated Lattice Fermions

The recent development of Neural Quantum States (NQS) has established them as one of the most accurate methods for studying strongly correlated many-fermion systems, outperforming existing many-body approaches for large systems. However, NQS calculations are currently highly reso...

Electric-Field-Oriented Interfacial Solvent Engineering Enables High-Voltage Ether Electrolytes for Ni-Rich Lithium-Ion Batteries

Abstract High-voltage operation of nickel-rich cathodes (>4.5 V) significantly boosts the energy density of lithium-ion batteries but triggers catastrophic oxidative decomposition of conventional ether electrolytes. Under high-potential electric fields, ether molecules in the ele...

Water-oil interfacial kinetics control enables water-based organic solar cells with 12.59% certified efficiency

Organic solar cells (OSCs) are promising for clean-energy generation, but sustainable production remains constrained by hazardous organic solvents. Aqueous organic-semiconductor nanoparticle (NP) inks offer an environmentally friendly route to OSCs, yet low efficiency and limited...

Precision targeting and alternative effector cells: Revolutionizing CAR-based therapy for T-cell malignancies.

T-cell malignancies are highly heterogeneous and associated with high relapse rate and poor prognosis. While chimeric antigen receptor-T (CAR-T) cell therapy has achieved remarkable success in relapsed or refractory B-cell malignancies, its application in T-cell malignancies rema...

Universal compactified Jacobians: cohomological invariance and boundary combinatorics

Abstract Pagani and Tommasi have introduced a class of smoothable fine compactified Jacobians $$\overline{\mathcal {J}}_{g,n}^{\,d}(\sigma )\rightarrow \overline{\mathcal {M}}_{g,n}$$ J ¯ g , n d ( σ ) → M ¯ g , n over the moduli space of stable curves, depending nontrivially on...

Serum basic amino acids, prolactin, and insomnia severity in perimenopausal individuals: a cross-sectional sub-study

Insomnia symptoms are common during the menopausal transition, but estrogen-centered explanations do not fully account for inter-individual variation. We examined whether serum prolactin was associated with insomnia severity and whether circulating basic amino acids modified this...

Non-Wellfounded and Cyclic Proofs for LTL: A Syntactic Correspondence with Linear Nested Sequents

We introduce the formalism of non-wellfounded and cyclic linear nested sequent calculi, developing concrete systems for linear temporal logic (LTL). The paper addresses two central problems, which we call "cycle recognition" and "unraveling." Cycle recognition concerns identifyin...

Aridity regulates scale-dependent effects of multiple resource additions on productivity stability in Eurasian grasslands

Increasing the supply of multiple limiting resources generally reduces biodiversity and community stability in grasslands. Aridity is known to modify biodiversity-stability relationships, yet it remains unclear whether the effects of multiple resource supply on biodiversity and s...

Multi-gate organic dendritic transistors for spatiotemporal BCM learning

The Bienenstock–Cooper–Munro (BCM) learning rule effectively mitigates the issue of synaptic weight oversaturation in Hebbian learning via a sliding threshold dependent on historical neuronal activity. However, existing hardware implementations focus primarily on temporal history...

Exploratory genetic and expression analysis identifies MCTP2 associated with negative symptom improvement in schizophrenia

Abstract Negative symptoms are common initial manifestations of schizophrenia, and their improvement is key to social function prognosis. MCTP2, a C2 domain-containing protein, is involved in higher cognitive functions and critical for facial recognition. We hypothesized MCTP2 ma...

Trade-off between flux efficiency and metabolic control shapes enzyme allocation

Efficient use of limited cellular resources is fundamental to metabolism. Although flux optimization is widely recognized as a central objective of metabolic networks, how flux efficiency influences the allocation of the metabolic proteome remains unclear and lacks direct validat...

The Impact of Infectious Disease Severity on Stigma Associated With Affected Regions: A Facial Representation Perspective

ABSTRACT Individuals from regions affected by infectious disease outbreaks may be stigmatized because others hold negative mental images—or mental representations—of them. This study investigated whether such outbreaks lead to the formation of negative mental representations of r...

Single‐Nucleus Atlas of Spinal Sarcopenia Patients Reveals Disruption of Quiescent and Regenerative Satellite Cell Niches in Fatty‐Infiltrated Muscle

ABSTRACT Severe muscle fat infiltration is a contributing factor to muscle loss, particularly in the spinal sarcopenia population. However, the underlying mechanism largely remains elusive. Here, we identified the intramuscular fat fraction (IMFF), rather than perimuscular fat fr...

Experimental study of urban air mobility noise based on scaled-model tests

This study investigates how ground surface treatment and building presence influence the acoustic field of a hovering unmanned aerial vehicle (UAV) using a controlled scaled-model experimental setup. A tracked dynamically hovering UAV was used as the acoustic source and operated...

Contrast in the Boundary Layer Convergence Lines at Desert−Oasis Border With Different Vegetation Gradient

Abstract Motivated by an observed asymmetry in boundary layer convergence lines (BLCLs) between the Kubuqi and Ulan Buh desert borders of the Hetao Oasis in northern China, this work aims to document the differences in BLCL frequency and convective initiation and their potential...

A large-scale GPU-accelerated DEM–ray-tracing method for particle-resolved thermo-optical-mechanical simulation of selective laser sintering of polymer powders

Selective laser sintering (SLS) involves strongly coupled laser transport, particle-scale heat transfer, particle motion, and sintering, making high-fidelity simulation of realistic powder beds computationally demanding. This work presents a large-scale GPU-accelerated DEM–ray-tr...

Negotiated meaning-making under communicative constraints: professionals’ perspectives on paediatric palliative care in mainland China

Paediatric end-of-life care in mainland China occurs within contexts shaped by death taboo, protective silence, and the uneven development of palliative care services. Drawing on interviews with paediatric palliative care professionals, this qualitative study explored professiona...

Characterizing Real-World Bugs in Tile Programs for Automated Bug Detection

Tile-based programming frameworks are increasingly adopted to write high-performance GPU kernels in domains such as deep learning and scientific computing. While these frameworks enhance productivity and hardware utilization, their multi-stage compilation pipelines introduce dist...

Directed Evolution of a Protein Catenane Reveals How Noncanonical Topology Modulates Sequence–Property Relationships

Abstract Single-domain protein catenanes, in which two mechanically interlocked polypeptide rings fold into a compact structure, provide a tractable system for probing how chemical topology reshapes protein fitness. Using single-domain catenated dihydrofolate reductase (cat-DHFR)...