Development of six novel dinuclear calcium(II) complexes based on 8-hydroxyquinoline as anticancer agents.

This study reports the synthesis and antitumor evaluation of six novel dinuclear calcium(II) complexes with the general formula [Ca(μ-O)(QM)(QH)], designated as CaQ1 through CaQ6. These complexes incorporate various deprotonated 8-hydroxyquinoline ligands (H-QM-H-QM) and 1,10-phenanthroline derivatives (QH), synthesized using Ca(NO)·4HO. The specific compositions are as follows: CaQ1: H-QM = 5,7-dibromo-8-hydroxyquinoline (x = 1), QH = bathophenanthroline; CaQ2: H-QM = 5,7-dichloro-8-quinolinol (x = 2), QH = bathophenanthroline; CaQ3: H-QM = 5,7-diiodo-8-hydroxyquinoline (x = 3), QH = 1,10-phenanthroline; CaQ4: H-QM = 5,7-dichloro-8-quinolinol (x = 2), QH = 1,10-phenanthroline; CaQ5: H-QM = clioquinol (x = 4), QH = 1,10-phenanthroline; CaQ6: H-QM = 5,7-dibromo-8-hydroxyquinoline (x = 1), QH = 1,10-phenanthroline.

Theoretical Prediction of the Magnetic Blocking Temperature of Dysprosium-Based Metallofullerene Single-Molecule Magnets.

Five geometrically similar dysprosium-based endohedral metallofullerenes (Dy-EMF), single-molecule magnets, namely, DyScN@C-D, DyScN@C-D, DyScN@C-D, DyScN@C-D, and DyScN@C-D, are investigated using DFT and CASSCF methods. Energy decomposition analysis reveals that the interaction between the endohedral cluster and the cage is predominantly electrostatic and is weakened sequentially as the cage size increases. The ground states of these molecules are all stabilized as |±15/2>, with magnetic reversal barriers ranging from 999.

Design of Prefabricated Concrete-Filled Steel Pipe Columns for Pile Beam Arch Subway Stations Based on Carbon Emission Optimization.

With the rapid expansion of underground rail transit construction in China, the high carbon emissions associated with subway tunnels and stations have become an increasing concern. This study systematically examines the carbon emissions of prefabricated concrete-filled steel pipe columns (PCSPCs) during the construction phase of a Beijing subway station built via the pile beam arch (PBA) method, applying the life cycle assessment (LCA) methodology as a case study. An analytical framework for the synergistic optimization of carbon emissions and costs was developed.

High-Entropy Co-Based Oxygen Electrodes with Enhanced Thermomechanical Compatibility for Reversible Protonic Ceramic Cells.

Reversible protonic ceramic cells (R-PCCs) are a kind of distinguished long-time energy conversion and storage device. The utilization of oxygen electrodes is vital to achieve high electrochemical performances for R-PCCs, demanding high catalytic activity toward oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and appropriate thermal expansion coefficients (TEC). Herein, novel high-entropy perovskites PrBaSrLaNdMeO (Me = Co, Fe, Mn) are explored.

Contributions of Executive Functions To Listening Comprehension and Mediation Effects of Verbal IQ among Chinese Children with Autism Spectrum Disorder.

Listening comprehension is crucial for academic achievement and social communication, but is substantially impaired among children with autism spectrum disorder (ASD). To develop effective interventions for improving listening comprehension, it is essential to identify the underlying deficits in core cognitive domains and determine the precise mediation pathways. This study examined the associations between executive functions (EFs), such as working memory, inhibitory control, and cognitive flexibility, and listening comprehension abilities among Chinese children with ASD (N = 35) and age-matched typically developing (TD) children (N = 40).

Carbon Nanohorns and Polydopamine as Eco-Friendly Pesticide Carriers: Nanoencapsulation Based on Thiazoleamide Derivatives and Synergistic Antifungal Effects.

In this study, a nanodelivery system (CNH-Q7-PDA) based on van der Waals force-driven self-assembly was developed, where carbon nanohorns (CNH) adsorbed Q7 and were encapsulated by polydopamine (PDA) to enhance pesticide application efficiency. Simulated rainfall washoff experiments demonstrated that the incorporation of PDA significantly reduced the rolling and bouncing of carriers on plant leaves, effectively improving the deposition and retention rates of pesticides on the leaves. Meanwhile, antifungal experiments revealed that CNH-Q7-PDA exhibited superior fungicidal activity compared to Q7 and CNH-Q7.

Accounting for instrument resolution in the pair distribution functions obtained from total scattering data using Hermite functions.

The use of Hermite functions to describe pair distribution functions (PDFs) from total scattering data was previously proposed by Krylov & Vvedenskii [ (1995), , 683-687]. Hermite functions have a suitable form for describing both the total scattering data and the PDF, and have the useful feature that they are eigenfunctions of the Fourier transform operation. We demonstrate that, by fitting Hermite functions to total scattering data, it is possible to take into account the effects of experimental resolution when deriving the PDF from the scattering data.

Holistic Synergistic Modulation for Efficient Blue Quasi-2D Perovskite Light-Emitting Diodes.

The bromide-chloride mixed quasi-two-dimensional (quasi-2D) perovskites with high exciton binding energy have demonstrated remarkable potential for efficient blue perovskite light-emitting diodes (PeLEDs). However, challenges persist due to the poor energy transfer efficiency in quasi-2D perovskites and imbalanced charge injection at the interface, which results in notable exciton quenching. This study employs an effective approach termed "systematic synergistic engineering" by introducing 4-guanidinobenzoic acid methanesulfonate (GAMS) into the perovskites and 2-bromoethylphosphonic acid (BPA) molecules at the buried interface, respectively.

Ecological stoichiometry comparison of the plant-litter-soil system of Quercus rehderiana in different rocky desertification habitats.

Aims: Carbon (C), nitrogen (N), and phosphorus (P) stoichiometry serves as a crucial indicator of interconnected biogeochemical cycles in terrestrial ecosystems, influencing nutrient limitation patterns, elemental balance and coupling, as well as plant adaptation strategies to environmental constraints. However, the interaction mechanisms between plants and soils in karst rocky desertification forests remain poorly understood. This study comparatively analyzes the C, N, and P stoichiometric characteristics of Quercus rehderiana in both rocky and non-rocky desertification forests, aiming to elucidate the nutrient allocation strategies and element coupling mechanisms within rock desertification forest ecosystems.

Epitaxial growth of monolayer white phosphorus on Cd(0001).

As a promising two-dimensional (2D) material, phosphorene has attracted tremendous research interest in both fundamental research and potential applications. Up to now, black phosphorene, blue phosphorene, violet phosphorene, and ultrathin nanosheets of red phosphorus have been successfully synthesized by mechanical exfoliation or epitaxial growth, while the synthesis of 2D white phosphorus (WP) has not been achieved. Here, we report the epitaxial growth of monolayer WP on Cd(0001) by means of low temperature (90 K) deposition.

VCPC: virtual contrastive constraint and prototype calibration for few-shot class-incremental plant disease classification.

Deep learning demonstrates strong generalisation capabilities, driving substantial progress in plant disease recognition systems. However, current methods are predominantly optimised for offline implementation. Real-time crop surveillance systems encounter streaming images containing novel disease classes in few-shot conditions, demanding incrementally adaptive models.

Effect of flow velocity variation on individual behaviour and collective cohesion of two fish species.

Proper recognition of fish swimming and collective behaviours hold great significance in the development of fish conservation. The influence mechanism of hydrodynamic parameters on fish collective and swimming behaviours remains incompletely established. This study investigated the individual and collective behaviours of juvenile Hemibarbus maculatus Bleeker and Dabry's sturgeon (Acipenser dabryanus) under various flow velocities [≈1-7 body length (BL/s)] from laboratory experiments and video analysis.

Industrial robots reduce carbon emissions in manufacturing through global value chains.

As quintessential representatives of advanced production tools in new-quality productive forces, industrial robots not only empower the intelligent transformation of industries but also align with the development philosophy of green and low-carbon growth. This paper, from the perspective of the manufacturing industry's embeddedness in the global value chain, utilizes world input-output tables and data related to the application of industrial robots to conduct an empirical analysis of the impact and mechanisms by which industrial robot application affects carbon emissions in the global manufacturing sector. The results indicate that the application of industrial robots in manufacturing has a significant carbon emission reduction effect, which remains robust after causal identification using instrumental variables and multiple robustness tests; mechanism analysis reveals that the application of industrial robots can not only optimize the allocation of labor factors through substitution effects but also enhance international competitive advantages, improve the division of labor status, and form a global value chain climbing effect, thereby further increasing the level of carbon emission reduction.

HAVIT: research on vision-language gesture interaction mechanism for smart furniture.

With the rapid development of smart furniture, gesture recognition has gained increasing attention as a natural and intuitive interaction method. However, in practical applications, issues such as limited data resources and insufficient semantic understanding have significantly constrained the effectiveness of gesture recognition technology. To address these challenges, this study proposes HAVIT, a hybrid deep learning model based on Vision Transformer and ALBEF, aimed at enhancing the performance of gesture recognition systems under data-scarce conditions.

Graphitic nanozyme for visual ascorbic acid sensing in commercial beverages.

Ascorbic acid (AA), an essential micronutrient that cannot be endogenously synthesized in humans, plays vital roles in various physiological processes and must be obtained through dietary intake. However, AA is prone to oxidative degradation during food processing, storage, and transportation, leading to significant loss of its bioactivity. These factors underscore the critical need for developing simple, rapid, and accurate methods for AA quantification in food products.

On-surface visualization of the influence of the chemical environment on halogen-hydrogen bonds at submolecular scale.

The halogen-hydrogen bond has demonstrated remarkable potential in controlling molecular assembly and precisely steering reaction pathways on surfaces. However, few attempts have been devoted to explore the fundamental characteristics of halogen-hydrogen bonds in real space. Herein, we systematically investigate the influence of the local chemical environment of hydrogen atoms on halogen-hydrogen bonds.

The role of post-translational modifications in parvovirus life cycle.

Parvoviruses are a group of single-stranded DNA viruses that lack an envelope and are widely distributed in both vertebrates and invertebrates. When they infect a host cell, parvoviruses take over the cell's translational machinery to support the viral genome replication and proteins synthesis, following which viral proteins undergo various post-translational modifications (PTMs). Parvovirus non-structural (NS) and capsid proteins are modified by PTMs, including phosphorylation, ubiquitination, SUMOylation, and glycosylation.

Compartment-specific dynamics of soil microbiota along a plantation chronosequence in karst mountain ecosystems.

Soil microbiomes play pivotal roles in mediating plant diversity maintenance by regulating multifunctional ecosystem services during plant development. However, how different stand age of plants influence soil microbial communities in various soil compartments remains poorly understood. Through Illumina-based 16S rRNA and ITS amplicon sequencing, we systematically investigated the successional trajectories of soil microbiome in plantations spanning various developmental phases.

Genome-wide analysis of the CML gene family and its response to cold stress in Curcuma alismatifolia.

Calmodulin-like (CML) transcription factors function as calcium (Ca⁺) signal sensors and play a pivotal role in plant cold resistance. Although this gene family has been identified in various plant species, the characteristics of the CML gene family in Curcuma alismatifolia and its function under cold stress remain largely unknown. This study identified 202 CACML genes in the Curcuma alismatifolia genome, which were phylogenetically classified into four clades.

Robust Pt/C nanozyme for total antioxidant capacity assay in daily foods.

A robust oxidase (OXD)-like Pt/C nanozyme is proposed for the estimation of total antioxidant capacity (TAC) in foods. Vulcan XC-72 carbon material serves as both the support and stabilizer of the nanozyme, synthesized using a one-pot solvothermal method. A Pt/C nanozyme-based ascorbic acid (AA) quantitative colorimetric sensing platform was developed.

Anisotropic Photoelectric Properties of Aligned P3HT Nanowire Arrays Fabricated via Solution Blade Coating and UV-Induced Molecular Ordering.

This paper reports on the anisotropic optoelectronic properties of aligned poly(3-hexylthiophene) (P3HT) nanowire (NW) arrays fabricated via blade coating and UV irradiation, exhibiting a remarkably high electrical resistance anisotropy ratio of up to 8.05 between the parallel (0°) and perpendicular (90°) directions. This resistance anisotropy originates from the advantage of directional charge transport.

MmPHR1 enhances low phosphorus stress tolerance by activating MmPHT1;5 in an elite apple rootstock -Malus mandshurica.

Background: Phosphorus (Pi) is crucial for the growth and development of plants, and Phosphate transporter 1 (PHT1) genes are key in Pi absorption and signaling. PHT1 and phosphate starvation response 1 (PHR1) form the PHR1-PHT1 module, which is essential for Pi uptake and signaling across various species. However, its role in the apple rootstock has not yet been clear so far.

Nanoscale and molecular evidences for adsorptive fractionation of dissolved organic matter at the interfaces of Al-bearing ferrihydrite and water.

Ferrihydrite (Fh) usually exists in the form of Al-bearing Fh in soils and sediments, and Al substitution may have a remarkable influence on Fh characteristics, controlling its reaction with dissolved organic matter (DOM). Yet, little is known about the impacts of Al-bearing Fh on the fate of DOM. Here, selective binding and molecular fractionation of DOM was investigated at the interfaces of Al-bearing Fh and water.

Study on the Spatiotemporal Evolution Characteristics of Gas Pressure Field during Gas Injection into Loaded Coal.

To investigate the spatiotemporal distribution characteristics of gas pressure inside coal during gas injection, this study utilized N and CO as the injection source gases. By combination of experimental research with theoretical analysis, the internal gas pressure variation in coal during the injection process was analyzed in-depth. The differences in gas pressure between the two source gases were compared, and the influence of strong-adsorption and weak-adsorption gases on the internal gas pressure was explored.

Size-dependent dispersion characteristics of piezoelectric sandwich nanoplates taking surface effects into account.

In this study, the dispersion behavior of piezoelectric sandwich nanoplates is examined using the nonlocal strain gradient theory (NSGT). Specifically, the evolution law of frequency and phase velocity (PV) with the wave number (WN) is investigated. The sandwich nanoplate has a metallic central layer and a piezoelectric surface layer, and the nanoplate is deposited on top of a viscoelastic substrate.