Bodipy-based Ratiometric Fluorescent Probe for Sensing Fe with Large Absorption and Emission Shifts.

Secondary development of fluorescent probes can fully exploit the optical advantages of existing probes while avoiding resource wastage from redundant research and development. This paper investigates the metal ion recognition properties of a reported probe (BDF) in methanol solution. Upon addition of Fe, the probe solution exhibits a distinct color change from light blue to pale pink, accompanied by a 55nm blue shift in the maximum absorption wavelength.

Simulation of laser-assisted machining of the GH2135 alloy using molecular dynamics: effects of machining parameters on cutting performance.

The process of laser-assisted machining (LAM) of the GH2135 iron-nickel-based high-temperature alloy is simulated through molecular dynamics in this study. A comprehensive study is conducted on machining force, temperature distribution, strain/stress, and surface morphology to reveal the influence and mechanism of machining parameters on the cutting performance of the GH2135 alloy. The results demonstrate that both the machining force and surface damage are significantly reduced in the LAM process compared to conventional cutting without laser assistance.

Silver-Conjugated-Polyarginine Anchored Cotton Fabrics Exhibit Durable and Efficient Antimicrobial Properties.

Due to the hierarchical alignment of cellulose fibrils, cotton fabrics used in clothing possess excellent moisture and thermal management properties. However, this property can retain sweat and sebum secreted from human skin, which may harbor harmful microorganisms and affect human health. In addition, the abuse of antibiotics leads to the emergence of drug-resistant pathogens and cross infections, which require new strategies and antibacterial materials to control this situation.

MXene/NBR Nanocomposites with Excellent Thermal Conductivity and Wear Resistance Damping Properties.

With the continuous development of science and technology, research and application of new materials are becoming more and more important. MXene, with its layered two-dimensional structure, is widely used as a new functional filler in rubber, offering excellent electrical conductivity, thermal conductivity, and mechanical properties, and in electronic devices, sensors, and energy storage. However, due to its high surface energy, it is not quite compatible with most polymer substrates.

Polyimide-driven innovations as "inert" components in high-performance lithium-ion batteries.

The rapid proliferation of lithium-ion batteries (LIBs) across portable electronics and electrified transportation systems has propelled unprecedented requirements for high energy density, prolonged cycle life, and improved safety protocols. Polyimides (PIs), attributed to the excellent thermal stability, mechanical robustness, chemical stability, and flame retardant properties, have been widely researched as "inert" materials to address critical challenges in advancing LIBs. Herein, this review provides design principles for employing PIs' inherent characteristics to develop next-generation high-performance LIBs with balanced energy density, rate capability, and operational reliability.

Constructing crystalline NiCoO/amorphous MoNiCo-LDH through high valence Mo doping for high-performance hybrid supercapacitors.

In this work, a crystalline/amorphous electrode material was prepared a simple method. Specifically, high-valent Mo was introduced to fabricate amorphous MNC-LDH, which was then used to construct crystalline NCO/amorphous MNC-LDH composite materials. The prepared sample exhibited a three-dimensional pompom-like structure composed of ultrathin nanoflakes and a hybrid interface between crystalline and amorphous phases, which benefited its electrochemical performance.

Temporal evidence fusion evaluation method considering time sequence variation trend.

Aiming at the temporal information fusion evaluation problem, a temporal evidence fusion evaluation method was proposed by considering the time sequence trend based on evidence theory to fully reflect the dynamic trend of temporal information and the influence of the time factor on fusion evaluation. Firstly, the trend of temporal evidence sequence was integrated into fusion evaluation. The temporal variation factor of the proposition was defined by analyzing the sequence of changes in evidence to measure the dynamic of the proposition.

Stability and trajectory tracking of four- wheel steering trackless auxiliary transport robot via PID control.

In the complex working environment of underground coal mines, narrow road conditions and deviation in the driving path of autonomous trackless auxiliary transport robots can easily lead to collisions with walls or obstacles. This issue can be effectively solved by a four-wheel steering system, as it can reduce the turning radius of the robot at low speeds and improve its maneuverability at high speeds. Thus, a linear two-degree-of-freedom dynamics model of trackless auxiliary transport robot is established and the steady-state lateral critical speed of 16.

Sub-Ångstrom Pore Engineering in Carbon Molecular Sieves Realizes Diffusion-Gated Kinetic Sieving of Alkenes from Alkanes.

Sub-Ångstrom pore engineering offers a new paradigm for molecular separations. Here, we report sucrose-derived carbon molecular sieves (CMSs) with precisely tailored sub-Ångstrom slit pores that enable diffusion-gated kinetic sieving for the challenging separation of alkenes from alkanes. The optimized materials, C-Suc-650 and C-Suc-750, set new industry-leading standards for the kinetic separation of CH/CH and CH/CH, respectively.

Impact of generative AI interaction and output quality on university students' learning outcomes: a technology-mediated and motivation-driven approach.

This study investigates the influence of generative artificial intelligence (GAI) on university students' learning outcomes, employing a technology-mediated learning perspective. We developed and empirically tested an integrated model, grounded in interaction theory and technology-mediated learning theory, to examine the relationships between GAI interaction quality, GAI output quality, and learning outcomes. The model incorporates motivational factors (learning motivation, academic self-efficacy, and creative self-efficacy) as mediators and creative thinking as a moderator.

Burnout among Chinese EFL university instructors: a mixed-methods exploration of school climate, job demands, and emotion regulation.

Introduction: Teacher burnout is a significant global concern in higher education, impacting instructor well-being and educational quality. English as a Foreign Language (EFL) instructors in Chinese universities face unique pressures that may heighten their burnout vulnerability. This mixed-methods study, guided by the Job Demands-Resources (JD-R) model, investigated the intricate relationships between perceived school climate, challenging job demands, emotion regulation, and teacher burnout among Chinese EFL university instructors.

Numerical simulation of ellipse liquid jet atomization in supersonic crossflow.

In the combustion chamber of the scramjet, liquid fuel enters the supersonic crossflow in the form of liquid jet in crossflow (LJIC), and the jet interacts with the crossflow to complete atomization. As the initial stage of the combustion process, fuel atomization has a significant impact on the scramjet combustion efficiency and stability. Investigating the atomization and vortex characteristics of liquid fuel jet in supersonic crossflow is of great significance for scramjet design.

Influence of inner meshing profile on noise of hybrid electric vehicles coupler chain based on vibration analysis.

Chain noise is an important factor affecting the ride comfort of hybrid electric vehicles (HEVs) with chain coupler. The inner meshing profile can effectively reduce the polygonal action, which has already been proved, but its influence on the noise is controversial. In this paper, the basic vibration locus, velocities, and acceleration for HEVs coupler chain are analyzed.

Enhanced electrochemical nitrite sensing based on a gold nanoparticle decorated two-dimensional reduced graphene oxide/graphitic carbon nitride nanocomposite.

An electrochemical nitrite sensor was developed by fabricating a ternary nanocomposite of gold nanoparticles (AuNPs) anchored on two-dimensional reduced graphene oxide/graphitic carbon nitride (rGO/g-CN@AuNPs). The g-CN layer functions as a linker that evenly distributes across the rGO substrate and modulates the growth of gold nanoparticles. Numerous AuNPs are uniformly and tightly anchored on rGO/g-CN, ensuring excellent electrical conductivity and efficient catalytic performance.

The relationship between authentic leadership and athlete burnout: A longitudinal study.

Athlete burnout is a significant psychological and behavioural issue in the athletic domain. Authentic leadership, an emerging leadership style characterised by self-awareness, transparency, moral behaviour, and balanced processing, may hold potential value in mitigating athlete burnout. However, longitudinal research exploring the reciprocal relationship between authentic leadership and athlete burnout at the individual level remains scarce, particularly regarding the underlying mechanisms, such as psychological capital and empathy .

Ultraefficient Phosphate Adsorption via Monocarboxylic Acid-Regulated Defective Ce-MOFs: Pore Size Regulation, Valence State Modulation, and Unsaturated Center Design.

Introducing defects into Metal-organic frameworks (MOFs) is an effective measure to increase adsorption sites, which is of great significance for improving phosphorus (P) adsorption performance. In this study, various defect-containing cerium (Ce)-based MOFs (Ce-MOFs) were prepared by introducing different types and equivalents of monocarboxylates. Among them, butyric acid (BA)-regulated Ce-MOF (Ce-MOF(40BA)) exhibited excellent adsorption performance with a maximum phosphate adsorption capacity of 117.

Glutaredoxin 1 enhances endothelial cell angiogenesis by reducing VEGFA S-glutathionylation and delays vascular endothelial cell senescence.

Vascular senescence serves as a critical pathophysiological foundation for systemic organ aging in humans. Glutaredoxin 1 (Grx1), a key regulator of intracellular redox signaling, plays a critical role in modulating cellular senescence. In this study, we observed significantly reduced Grx1 expression in the aortic endothelial cells of naturally senescent SD rats and D-gal-induced senescent vascular endothelial cells compared to control groups.

Nanoporous [Ho(CO)(HO)]-organic frameworks for excellent catalytic performance on the cycloaddition of CO into epoxides and the deacetalization-Knoevenagel condensation.

Designing nanoporous lanthanide-based metal-organic frameworks (MOFs) as robust heterogeneous catalysts has received a lot of interest in recent years. Herein, we successfully constructed a novel isomorphic nanoporous MOF {[Ho(TDP) (HO)]·5HO·4DMF} (named as NUC-55, NUC = North University of China) by combining [Ho(CO)(HO)] (abbreviated as {Ho}) clusters with 2,4,6-tri(2,4-dicarboxyphenyl)pyridine (HTDP) as structure-oriented multifunctional ligands under acidic solvothermal conditions. NUC-55 is a holmium(iii)-based 3D MOF with a hierarchical porous architecture containing tetragonal microchannels (0.

Design and Fabrication of Silicon Pressure Sensors Based on Wet Etching Technology.

This paper presents a novel silicon-based piezoresistive pressure sensor composed of a silicon layer with sensing elements and a glass cover for hermetic packaging. Unlike conventional designs, this study employs numerical simulation to analyze the influence of varying roughness levels of the sensitive membrane on the sensor's output response. Simulation results demonstrate that pressure sensors with smoother sensitive membranes exhibit superior performance in terms of sensitivity (5.

The HNRNPC/CELF2 signaling pathway drives glycolytic reprogramming and mitochondrial dysfunction in drug-resistant acute myeloid leukemia.

Background: Acute myeloid leukemia (AML) is an aggressive cancer with high treatment resistance, often leading to poor patient outcomes. Metabolic reprogramming plays a critical role in AML progression, influencing drug resistance (DR) and tumor survival. This study investigates the HNRNPC/CELF2 signaling pathway and its impact on AML cell metabolism and DR.

Construction of a Transparent, Robust, Shape-Memory and Self-Healing MDI-Based Polyurethane Elastomer.

Integrating strong mechanical properties and excellent optical properties for self-healing materials is challenging in both academia and industry. Robust self-healing polyurethane elastomers are expected to have superior mechanical properties, transparency, remarkable healing capability, and shape-memory performance via the adjustment of chemical and microphase separation structure. Herein, a robust transparent self-healable 4,4'-diphenylmethane diisocyanate (MDI)-based polyurethane elastomer containing disulfide bonds and branched structure (MPUE-SS) was synthesized.

Mediating effects of physical fitness index between physical activity and executive function in Chinese adolescents: an observational study.

Objective: To explore the mediating effect of physical fitness index between physical activity and executive function in Chinese adolescents, and to provide a theoretical basis for improving adolescents' physical fitness status and executive function.

Methods: A total of 5,336 adolescents aged 13-18 years were sampled from September to December 2023 in Changzhi, Taizhou, Jishou, Nanchang, Suzhou, Xianyang, and Yulin, China, respectively, using stratified whole cluster random sampling. Adolescents' physical activity, physical fitness index and executive function were assessed using questionnaires combined with tests.

Study on the Preparation and Properties of Thermally Conductive Semi-Aromatic Heat-Resistant PA5T-CO-10T/ Hexagonal Boron Nitride Composites.

In this paper, we report a novel thermally conductive semi-aromatic heat-resistant PA5T-CO-10T/hexagonal boron nitride (PA5T-CO-10T/BN) composite, based on as-synthesized PA5T-CO-10T, which is a copolymer of poly (pentamethylene terephthalamide) (PA5T) and poly (decamethylene terephthalamide) (PA10T). We confirmed the structure of PA5T-CO-10T through a nuclear magnetic resonance carbon spectrometer (C-NMR). The differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results indicate that PA5T-CO-10T demonstrates a processing window (greater than 90 °C) which is suitable for melt processing and injection molding.

Integrating meteorological data and hybrid intelligent models for dengue fever prediction.

Background: Dengue fever is a globally prevalent arbovirus disease that poses a serious challenge to global health. Therefore, analyzing the relationship between dengue fever incidence and meteorological factors and developing a more effective prediction model based on this relationship can provide a theoretical basis for public health departments to formulate reasonable prevention strategies.

Methods: We collected dengue fever cases and meteorological data, including temperature, humidity, sunshine duration, etc.

Reversible and ultrafast fluorescent nanoswitch for on-site visual determination of malachite green and in vivo zebrafish imaging.

Malachite green (MG), one of the most toxic veterinary drug residues, is of great significance to establish a rapid, accurate, and highly selective on-site quantitative detection method for food safety. In this study, a new strategy for the detection of MG in aquatic products is developed, which is based on orange fluorescent carbon dots (O-CDs) as nanoswitches for rapid and reversible detection of MG content. The overlap between the strong absorption of MG at 615 nm and the fluorescence emission spectra of O-CDs at 564 nm provides effective support for the internal filter effect (IFE) leading to fluorescence quenching of the system.