Chinese Academy of Sciences

Single‐Photon Emitters in β‐Ga 2 O 3 at Distinct Excitation Energies: Defect Origin and Photophysical Properties

ABSTRACT Room‐temperature single‐photon emission in beta‐phase gallium oxide (β‐Ga 2 O 3 ) extends the application scope of this ultra‐wide bandgap semiconductor beyond power electronics, opening up the possibility of using it as a quantum light source platform. However, the rich...

The parent bodies of Ryugu and Ivuna formed before those of other carbonaceous chondrites

Most carbonaceous chondrite (CC) meteorites contain abundant chondrules, millimeter-scale spherical inclusions of previously molten material. Ivuna-type carbonaceous chondrites (CIs) do not contain chondrules, nor do samples of the carbonaceous asteroid Ryugu. CIs and Ryugu share...

Magnetic Interference Compensation Method for a Deep-Sea Human-Occupied Vehicle Based on Dynamic Excitation

Human-occupied vehicles (HOVs) provide an ideal platform for high-resolution near-bottom magnetic anomaly detection. However, complex platform-generated magnetic interference severely limits the reliable extraction of weak magnetic signals. The conventional Tolles–Lawson (T–L) mo...

Construction of composite biological soil crusts accelerates early-stage soil restoration in karst rocky desertification areas

Karst rocky desertification (KRD) represents one of the most severe forms of land degradation globally. Soils in these regions are characterized by structural instability, severe nutrient depletion, and fragmented microbial networks, all of which collectively impose formidable co...

Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora), with Descriptions of Two New Species: Pleuronema elegans spec. nov. and Uronema orientalis spec. nov.

This dataset contains the digitized treatments in Plazi based on the original journal article Pan, Xuming, Huang, Jie, Fan, Xinpeng, Ma, Honggang, Al-Rasheid, Khaled A. S., Miao, Miao, Gao, Feng (2015): Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora...

Coupling refining and modification effects of Sr, Mn, and Al-V-Ti-B on microstructure of Al-7Si-0.25Fe alloy

Al-Si alloys are widely used in aerospace and automotive industries due to their high specific strength and low cost. Their mechanical performance is closely related to the grain size of the α-Al matrix and the morphologies of secondary phases such as eutectic Si and Fe-containin...

Strong coupling between RF photons and plasmons of electrons on liquid helium

Plasmons, arising from the collective motion of electrons, can interact strongly with electromagnetic fields or photons; this capability has been exploited across a broad range of applications, from chemical reactivity to biosensing. Recently, there has been growing interest in p...

Growth and Competition of the Tropical Invader Chromolaena odorata Are Inhibited by Late Arrival and Mitigated by Nitrogen Addition

Aims: Understanding how arrival order, nitrogen (N) availability and population density interact to shape plant invasion is critical for predicting and ameliorating biological invasions under global change. Chromolaena odorata is one of the most destructive invasive plants in tro...

Evaluation of NEX-GDDP-CMIP6 and CMIP6 for Extreme High Temperature Frequency and Intensity in the Sichuan–Chongqing Region with Future Projections

Based on CN05.1 observational data, this study systematically evaluates the performance of the NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6) and the original Coupled Model Intercomparison Project Phase 6 (CMIP6) in simulating extreme high-temperature (E...

Modified ppk Expression Alters Temporal Transcriptional and Phosphorus–Nitrogen Responses to Phosphate Fluctuation in Synechococcus sp. PCC 7002

Phosphate availability fluctuates widely in aquatic environments, yet how engineering the regulatory context of polyphosphate kinase affects cyanobacterial responses to such fluctuations remains unclear. Here, the wild-type strain of Synechococcus sp. PCC 7002 and Dppk, a modifie...

Quantum Nonseparability Without Nonlocality: A ψ-Ontic Holistic Account of Entangled Measurement

The standard interpretation of quantum measurement on entangled systems holds that measuring one particle nonlocally collapses the wavefunction of its spacelike-separated partner. We argue that this conclusion rests on a false presupposition: that subsystems of entangled systems...

On the Vanishing Viscosity Limit of Hamilton–Jacobi Equations with Nearly Optimal Discount

Abstract. In this paper, we establish the convergence of solutions to the viscous Hamilton–Jacobi equation (with a Tonelli Hamiltonian): [Formula: see text], [Formula: see text] as [Formula: see text], once the modulus [Formula: see text] satisfies [Formula: see text]. Such an ex...

Ancient proteins identify various Denisovan remains from Southwest China

More than a decade of multidisciplinary research has identified a collection of cranial, facial and dental remains of Denisovans from across Asia, providing insight into their cranial capacity, appearance, diet and evolutionary history. However, our understanding of their spatiot...

Quantifying the Incremental Value of XRF Elemental Data for Well-Log-Based TOC Prediction: A Fusion Strategy Evaluated Under Strict Cross-Validation

Total organic carbon (TOC) is a key parameter for source-rock evaluation, but laboratory measurements are sparse and do not resolve continuous vertical variation. Conventional well logs provide continuous physical responses, whereas X-ray fluorescence (XRF) data add geochemical i...

Fruit- and Vegetable-Derived Exosome-like Nanovesicles: A Review

Fruit- and vegetable-derived exosome-like nanovesicles (FV-ELNs) are nanovesicles characterized by a lipid bilayer membrane that encloses a diverse array of biologically active constituents, including proteins, lipids, nucleic acids, and small-molecule bioactive compounds. FV-ELN...

Mitochondrial Genome Comparison and Phylogenetic Analysis of the Family Carabidae (Coleoptera: Adephaga)

The family Carabidae, one of the largest families within Coleoptera, represents one of the most important groups of predatory insects and bioindicators in ecosystems, playing significant roles in agricultural pest control and ecological environment assessment. However, the phylog...

Lichen-mediated limestone weathering: contrasting biomechanical and biochemical contributions in subtropical and highland regions

Abstract Lichens play an important role in rock alteration across diverse terrestrial environments, yet the relative contributions of biomechanical and biochemical processes under different climatic conditions are still poorly constrained. Here, we investigated interactions betwe...

Conditional cooling from large-scale urban afforestation: ecosystem functioning and planning implications

Large-scale urban afforestation is increasingly promoted as a Nature-Based Solution for reducing urban heat. Yet afforestation does not cool cities uniformly, and the conditions under which it delivers sustained thermal benefits remain poorly understood. This uncertainty limits t...

A multimodal deep learning method based on multiple medical images for Fuchs endothelial corneal dystrophy diagnosis

To establish a multimodal deep learning network for the automated diagnosis of Fuchs endothelial corneal dystrophy (FECD). The ResNet-50 neural network was trained and validated using patients with FECD, patients with other corneal endothelial disorders, and healthy controls. At...

Creation of rosemary germplasm resources with high glandular trichome density and elevated levels of volatile and non-volatile functional components

Rosemary originates in the Mediterranean region and is a traditional medicinal and aromatic plant. It contains a variety of bioactive components, including both volatile and non-volatile, and exhibits properties such as antioxidant, anti-inflammatory, anti-tumor, anti-fungal, and...