Cavity-enhanced Rydberg atomic superheterodyne receiver.

High-sensitivity measurements of the microwave electric field are important in applications of communication and metrology. The sensitivity of traditional Rydberg superheterodyne receivers in free space is effectively determined by the signal-to-noise ratio (SNR), which is often considered equivalent to sensitivity in practical sensing applications. In this work, we demonstrate a cavity-enhanced receiver, where an optical cavity significantly amplifies the interaction between the probe light and cesium atoms, which substantially improves the signal-to-noise ratio via enhancing the expansion coefficient .

Generating squeezing and enhancing entanglement in an opto-magnomechanical system via pump modulation.

We propose schemes for generating quantum squeezing and enhancing entanglement in an opto-magnomechanical configuration by periodically modulating the driving field. The system consists of an optical cavity and a ferrimagnetic yttrium-iron-garnet micro-bridge supporting a magnon mode and a mechanical vibration mode, in which the mechanical mode couples to the optical mode and the magnon mode via radiation pressure and magnetostrictive interaction, respectively. The optical mode and the magnon mode are driven by classical fields, and the amplitude of the laser field driving the optical cavity is periodically modulated.

Ecological factors impacting genetic characteristics and metabolite accumulations of .

Objective: The investigation of the correlation between ecological factors and the genetic characteristics or metabolites of plants offers valuable insights into the regional causes of genetic and metabolic diversity. Here, , a medicinal plant, is employed as a model to explore the environmental factors that influence its genetic characteristics and metabolic accumulations.

Methods: A total of 23 populations from six cultispecies and 11 cultivated regions were selected based on the predictions of the global geographic information system.

NO Activates the Triterpenoid Biosynthetic Pathway in Through Multilevel Signaling Regulation to Enhance Its Production.

Triterpenoids are the bioactive components in with extensive medicinal prospects, but their low content in fermentation production is the main limiting factor for their application. This study focuses on nitric oxide (NO), an important signaling molecule within organisms, aiming to explore its inducing effect on the synthesis of triterpenes in and the potential signaling transduction mechanisms involved. Compared with the control group, the content of representative triterpenoid betulin increased by 70.

Comprehensive high-throughput screening and efficient preparation of active components of Ganoderma resinaceum and in vitro evaluation of therapeutic effect on gout.

This study focused on Ganoderma resinaceum, a widely utilized substance in the fields of medicine and food. Xanthine oxidase (XOD) was employed as a biological activity indicator, while receptor-ligand UF-LC/MS (ultrafiltration affinity liquid chromatography-mass spectrometry) technology was applied to screen and identify compounds with potential anti-gout properties. Additionally, molecular docking and dynamic simulations were performed with a common gout receptor (PDB ID: 1FIQ) to investigate the mechanism of action and assess the stability of the interactions.

Bioimpedance assessment method based on back propagation neural network for irreversible electroporation of liver tissue.

The safety and efficacy of irreversible electroporation (IRE) in tumor therapy has been validated over many years by clinical application. An in-depth study, however, is required to assess the degree of ablation during the clinical dissemination of the treatment. In this study, we propose and validate a method to evaluate the degree of IRE by measuring the impedance spectra of tissues before and after pulsed electric field treatment.

Post-event rumination as a mediator in the relationship between self-focused attention and social anxiety in Chinese adolescents.

Cognitive models of social anxiety disorder have conveyed the implication that self-focused attention (SFA) and post-event rumination (PER) are significant predictors in maintaining the symptoms of social anxiety (SA); however, their relationships have been scarcely studied in adolescents, including Chinese samples. The primary purpose of the current study was to examine the role of PER as a potential mediator between SFA and SA among Chinese adolescents; moreover, the moderation effect of gender was investigated. A total of 2,755 Chinese adolescents ranging in age from 11 to 19 years old with an average age of 14.

Reactive astrocyte-derived exosomes enhance intracranial lymphatic drainage in mice after intracranial hemorrhage.

Background: After intracranial hemorrhage (ICH), the formation of primary hematoma foci leads to the development of secondary brain injury factors such as perihematomal edema (PHE) and accumulation of toxic metabolites, which severely affect the survival and prognosis of patients. The intracerebral lymphatic system, proposed by Jeffrey J. Iliff et al.

Construction of leadership competency model for civil aviation flight cadets: An empirical study from China.

Human factors are often linked to unsafe events in civil aviation transport, with the competency level and decision-making abilities of flight crews playing a significant role. The leadership and teamwork competency of the flight crew in the cockpit directly influences the occurrence of aviation safety incidents. Leadership is a developmental and trainable skill.

Straightforward encapsulation of ultrastable CsPbBr PQDs and rare-earth emitters in zeolite for ratiometric temperature sensing and wet fingerprint recognition.

All-inorganic metal halide perovskite quantum dot (PQD) hybrids with high stability, multi-model emission and responsive luminescence are of great importance for optical applications. Herein, a dual-emitting CsPbBr/Si-1:Eu composite was successfully prepared by simultaneous encapsulation of CsPbBr PQDs and EuBr through a one-step thermal diffusion method. Partial destruction of the five-membered rings in silicalite-1 (Si-1) zeolite resulted from the PbBr etching effect at high temperatures that enhances the bonding formation between Eu and Si-OH, leading to the grafting of Eu onto the Si-1 zeolite framework.

Impact of Microglia-Derived Extracellular Vesicles on Resident Central Nervous System Cell Populations After Acute Brain Injury Under Various External Stimuli Conditions.

Acute brain injuries (ABI) caused by various emergencies can lead to structural and functional damage to brain tissue. Common causes include traumatic brain injury, cerebral hemorrhage, ischemic stroke, and heat stroke. Globally, ABI represent a significant portion of neurosurgical cases.

Carboxylated Zn-phthalocyanine attenuates brain Aβ in AD model mouse.

The deposition of aggregated amyloid β (Aβ) is considered as a key factor for Alzheimer's Disease (AD). Previously, we demonstrated that a carboxylated Zn-phthalocyanine (ZnPc) inhibits Aβ fibril formation, consequently protects neurons in culture. This study evaluated the effects of ZnPc on pathological changes in an AD mouse model (J20).

Urushiol-Based Coating with High Surface Hydrophilicity for Easy-Cleaning of Oil Pollutants.

Urushiol is recognized as a sustainable coating material with superior properties; however, it faces significant challenges in applications such as petrochemicals and marine engineering due to surface oil contamination. This study aimed to enhance the cleanability of urushiol-based coatings through hydrophilic modification. Polyethylene glycol monooleate (PEGMO) was identified as an appropriate hydrophilic macromonomer and utilized as a modifier to develop a novel urushiol-based coating, termed P(U-PEGMO), via thermal curing.

Engineering Green- to Blue-Emitting CsPbBr Quantum Dots in Nanozeolite with High Stability for Backlight Display Application.

The performance of blue devices utilizing perovskite quantum dots (PQDs) has lagged remarkably behind that of green light-emitting diodes because of low luminescence quantum yields and poor spectral stability. Here, benefiting from the rapid and short diffusion paths within the nanosized silicalite-1 (N-Si-1) zeolite (∼40 nm) channels, CsPbBr PQDs encapsulated within N-Si-1 show a high dispersion with an ultrasmall particle size of ∼2.38 nm and a blue emission of 474 nm with a high photoluminescence quantum yield (PLQY) of 44.

Detection and Characterization of Multidimensional Information of Adipocyte Model Based on AFM-Raman.

Excessive accumulation of white adipose tissue leads to metabolic disorders, and the excessive differentiation of preadipocytes into white adipocytes is one of the contributing factors to obesity. The browning of white adipocytes has been regarded as a promising therapeutic strategy. To analyze the origins and potential solutions for obesity from a fundamental perspective, we employed atomic force microscopy, and Raman confocal microscopy to investigate and characterize multidimensional information regarding the differentiation process of 3 T3-L1 preadipocyte models into white adipocytes and their subsequent browning into beige adipocytes.

Progress in the technology of solvent flotation.

Solvent flotation primarily relies on the variations in the activity of substances to adsorb target compounds onto the surface of bubbles, thereby facilitating the process of separation and extraction. This technology has the advantages of high separation efficiency, gentle process, and simple operation, making it widely applicable across various fields. This article reviews relevant research from the past decade to analyze the factors influencing this technology.

Performance Enhancement of Polyurethane Acrylate Resin by Urushiol: Rheological and Kinetic Studies.

A natural extract, i.e., urushiol, was employed to effectively cross-link and modify commercial wet-cured polyurethane acrylic resin.

High-performance ratiometric fluorescence detection and removal of tetracycline in milk based on CDs@ZSM-5:Eu.

Exploring materials with the dual functionality of detecting and removing tetracycline (TC) residues is crucial because of the environmental and health risks posed by antibiotic overuse. This study introduces a dual-emissive luminescent probe, CDs@ZSM-5:Eu, created through a solvent-free method combined with subsequent Euion exchange. The nanocomposite's blue emission, originating from carbon dots (CDs), is quenched by TC via an internal filtering effect, while an antenna effect triggers a strong red fluorescence of a TC-Euchelate.

Bio-Based Epoxy Vitrimers with Excellent Properties of Self-Healing, Recyclability, and Welding.

The development of more recyclable materials is a key requirement for a transition towards a more circular economy. Thanks to exchange reactions, vitrimer, an attractive alternative for recyclable materials, is an innovative class of polymers that is able to change its topology without decreasing its connectivity. In this work, a bisphenol compound (VP) was prepared from saturated cardanol, i.

Synergistic Etching and Hydrogen Bonding-Induced Self-Assembly of MXene/MOF Hybrid Aerogel for Flexible Room-Temperature Gas Sensing.

Limited by insufficient active sites and restricted mechanical strength, designing reliable and wearable gas sensors with high activity and ductility remains a challenge for detecting hazardous gases. In this work, a thermally induced and solvent-assisted oxyanion etching strategy was implemented for selective pore opening in a rigid microporous Cu-based metal-organic framework (referred to as CuM). A conductive CuM/MXene aerogel was then self-assembled through cooperative hydrogen bonding interactions between the carbonyl oxygen atom in PVP grafted on the surface of defect-rich Cu-BTC and the surface functional hydroxyl group on MXene.

Quaternity method for integrated screening, separation, extraction optimization, and bioactivity evaluation of acetylcholinesterase inhibitors from Sophora flavescens Aiton.

Introduction: Sophora flavescens Aiton (Fabaceae), a ubiquitous plant species in Asia, contains a wide range of pharmacologically active compounds, such as flavonoids, with potential anti-Alzheimer's disease (anti-AD) effects.

Objectives: The objective of the study is to develop a quaternity method for the screening, isolation, extraction optimization, and activity evaluation of acetylcholinesterase (AChE)-inhibiting compounds from S. flavescens to realize high-throughput screening of active substances in traditional Chinese medicine and to provide experimental data for the development of anti-AD drugs.