University of Science and Technology of China

The Total and Polarized Radio Emission from the Innermost Jets of a High-Redshift Quasar and a Candidate at Parsec-Scale Resolution

High-frequency very long baseline interferometry (VLBI) polarimetry probes synchrotron-emitting plasma closer to the central engines of radio-loud active galactic nuclei (AGNs), but observations above 43 GHz are technically demanding. We present 22-GHz European VLBI Network obser...

Advances in Cyclic Peptides Targeting G Protein‐Coupled Receptors

Peptide‐responsive G protein‐coupled receptors (GPCRs) often recognize endogenous peptide ligands through extended receptor interfaces, providing opportunities for peptide‐based ligands to engage receptor contacts that conventional small molecules struggle to access effectively....

Serum brain-derived neurotrophic factor is associated with diabetic complications and glycemic control in type 2 diabetes: an exploratory analysis of the ADNI cohort

To investigate the association between serum brain-derived neurotrophic factor (BDNF) levels and the clinical profile as well as complications in patients with type 2 diabetes mellitus (T2DM). A total of 185 participants were enrolled, including 35 healthy controls, 111 T2DM pati...

Metallic Ag-BiAg HeterostructuredDendrites AccelerateCarbon–Nitrogen Coupling for Air Plasma-Derived Amino AcidElectrosynthesis

Abstract Electrochemical C–N coupling driven by renewable electricity provides a sustainable strategy for amino acid synthesis, yet achieving high catalytic efficiency still remains challenging. Herein, a metallic Ag-BiAg heterostructured dendritic electrode is developed by a sim...

HydrogenBonding Networks Formed by Hydroxyl-FunctionalizedN-Heterocyclic Carbenes on Ag(111)

Abstract N-Heterocyclic carbenes (NHCs) have emerged as robust alternatives to thiols for metal-surface functionalization, offering strong σ-donor character, high thermal stability, and tunable molecular design. Despite advances in NHC surface engineering, the formation of ordere...

Enhanced extracellular invertase production in Bacillus subtilis by boosting synthesis and secretion in a suitable chassis cell

<title>Abstract</title> Background Soybeans are an important agricultural product, but they contain a significant amount of raffinose, which can cause flatulence when fermented by intestinal microorganisms. Invertase InvDz13 from <italic>Microbacterium trichothecenolyticum</itali...

Spiky Bursts of Energetic Electron Beams Upstream of Nonstationary Quasi‐Perpendicular Shocks

Abstract Energetic electron beams play a crucial role in collisionless shocks by driving upstream plasma waves and providing seed populations for diffusive shock acceleration. However, the processes responsible for their generation at quasi‐perpendicular shocks remain poorly unde...

Photon-Induced Modulationof Reaction Pathways inRuthenium Homologous Heteroclusters with a Ruδ+-Ru0 Interface for Photothermal Dry Reforming of Methane

Abstract Photothermal dry reforming of methane (PDRM) is a promising technology for mitigating greenhouse gas (CH4 and CO2) emissions and generating syngas under mild conditions. However, it faces challenges from the catalyst deactivation because of carbon deposition and unbalanc...

Chlorine Radical Mediated Tandem Dehydrogenation–Oxidation for Upcycling Polyolefins to Functional Wax at Low Temperature in Air

ABSTRACT Polyolefins valued for their excellent properties are the highest produced and widely used plastics. However, their chemical stability and massive accumulation arouse severe environmental issues, necessitating urgent resolution of recycling. Current recycling strategies...

Large language models as designers for autonomous research of anisotropic polymer thermocells

Flexible thermoelectric materials face a persistent trade-off between output power and mechanical robustness. Here, we report OmniMat, a large language model-driven framework that designs experimental protocols in a human-in-the-loop workflow without relying on structured task-sp...

Mefatinib versus gefitinib as a first-line treatment for EGFR-mutated non-small cell lung cancer: a randomized, double-blind, multicenter phase III study

Mefatinib, a novel second-generation epidermal growth factor (EGFR) tyrosine kinase inhibitor that has shown promising antitumor activity in targeting non-small cell lung cancer (NSCLC) with common and uncommon EGFR- activating mutations. In this phase III, randomized, double-bli...

On the Order of Intersecting Hypergraphs

Abstract. Determining the maximum number of edges in an intersecting hypergraph on a fixed ground set under additional constraints is one of the central topics in extremal combinatorics. In contrast, there are few results on analogous problems concerning the maximum order of such...

Mapping the health management journey of allogeneic hematopoietic stem cell transplantation: a qualitative study

Abstract Background Allogeneic hematopoietic stem cell transplantation serves as a curative therapy for various hematologic disorders. However, existing care models often lack a holistic perspective on patients' entire journey from diagnosis to long-term survival. Objective This...

Sodium Lidar observed multiple sodium layer structures and their dynamical coupling mechanism

Abstract. On the night of 13 June 2013, the University of Science and Technology of China (USTC) sodium lidar observed multiple sporadic sodium layers (SSLs) and enhanced sodium patterns (ESPs) over Hefei, China (31.8°N, 117.3°E). These structures appeared at different times, col...

Two Earliest Optical-UV Tidal Disruption Events Hidden in the SDSS DR7 Catalog Unveiled by the Transformer-based Spectrum Classifier

Abstract Optical spectroscopic features are decisive in the current identification of optical-UV tidal disruption events (TDEs). Regarding that the TDE estimated occurrence rate is 10 −5 –10 −4 galaxy −1 yr −1 by both theoretical and observational methods, large optical spectrosc...

Direct Solar Power‐Driven Durable Ammonia Electrosynthesis From Nitrate Under Fluctuating Voltage Conditions

ABSTRACT Nitrate electroreduction (NO 3 RR) powered by solar energy offers a sustainable platform for ammonia (NH 3 ) synthesis. However, the variability of solar energy, leads to fluctuating voltages and frequent start‐stop of the system, presents significant challenges for cata...

Star PolyelectrolyteCoacervates Enable Adaptive andRobust Enzyme Immobilization for Efficient Biocatalysis

Abstract Enzyme immobilization in solid porous supports often suffers from a trade-off among enzyme loading, mass transport, catalytic activity, and operational stability. Here, we report a liquid-like immobilization platform based on star polyelectrolyte coacervates (SPECs) form...

Transformer-Guided Interference-Aware 3D Path Planning for UAV Navigation in Urban Voxel Environments

Urban unmanned aerial vehicle (UAV) navigation may require path planning that accounts for geometric obstacles and spatially varying communication-related risk. This paper presents a transformer-guided interference-aware 3D path-planning method for urban voxel environments. A 3D...

Enhancing MicroplasticRaman Spectral Quality andClassification via a Dual Encoder Residual Network

Abstract When addressing noise interference and baseline drift during the rapid Raman spectral analysis of microplastics, traditional denoising and baseline correction algorithms frequently exhibit limitations such as parameter sensitivity, reliance on manual intervention, and in...

Structure, Stability, Spectroscopy and Chemical Bonding Analyses on the Novel X 6 (X = N, P, As, Sb, Bi) Molecules

ABSTRACT Inspired by the successful synthesis of zig‐zag C 2h ‐N 6 ( Nature 2025 , 642, 356–360), we systematically explored the structure, stability, infrared spectroscopy, chemical bonding and weak interaction of novel X 6 (X = N, P, As, Sb, Bi) molecules using relativistic DFT...