The impact of exercise self-efficacy on depression in firefighters: mediating effect of basic psychological needs and moderating effect of perceived social support.

Background: Firefighters are exposed to high-stress work environments and are prone to depression, which has a significant impact on their professional performance and quality of life. Although exercise self-efficacy has been suggested to potentially influence psychological wellbeing, its mechanism of action on firefighters' depression has not been clarified.

Methods: This study investigated the relationship between exercise self-efficacy and depression in firefighters and examined the mediating role of basic psychological needs and the moderating role of perceived social support.

Rumination and psychological resilience in Chinese civil aviation flight students: the chain mediating role of proactive coping and generalized anxiety disorder.

Background: As the focus of aviation safety shifts from technology to human factors, the central role of psychological resilience in flight safety has become increasingly prominent. However, the internal mechanism of how rumination affects psychological resilience, particularly the chain mediating effect of proactive coping and generalized anxiety, has not been thoroughly explored in high-stress populations.

Methods: Employing a cross-sectional design, 1,235 flight students from the Civil Aviation Flight University of China were surveyed using the Ruminative Response Scale (RRS), Connor-Davidson Resilience Scale (CD-RISC), Simplified Coping Style Questionnaire (SCSQ), and Generalized Anxiety Disorder Scale (GAD-7) to gather data.

Exerkines and myokines in aging sarcopenia.

Aging sarcopenia is an unavoidable condition that affects the majority of older adults in their later years. Exercise has been extensively researched as an effective intervention for sarcopenia. In particular, the release of exerkines and myokines during physical activity has beneficial effects on the body, which, as mediators, offer a novel therapeutic strategy for elucidating how exercise enhances skeletal muscle mass and function.

Effects of modified corn straw supplementation on laying performance, egg quality, immune response, antioxidant capacity, lipid metabolism and intestinal microbiota of post-peak laying hens.

Corn straw is potential dietary fiber-rich resources, which can be used as functional feed after appropriate modification. This research investigated the impact of modified corn straw (MCS) on production performance, egg quality, immune responses, antioxidant capacity, lipid metabolism, intestinal morphology and microbiota of post-peak laying hens. 225 Hy-Line brown laying hens aged 50-wk were divided into three groups: basal diet, basal diet added with 0.

A network meta-analysis of mind-body exercise interventions for internet addiction symptoms in young adults.

Background: Internet Addiction Disorder (IAD) is a recurrent mental illness. It severely impacts both physical and mental health, leading to physiological symptoms such as neurological dysfunction and immunosuppression. This condition significantly affects adolescent development and has become a global public health concern.

Immune cell profiling reveals diverse niches of immune residents of the enteric nervous system and potential neuroimmune interactions.

Gastrointestinal (GI) neuroimmune interactions are crucial sensors and regulators of tissue homeostasis. Most enteric neurons reside within the myenteric plexus of the enteric nervous system in the muscular region, forming a structure called the . Despite established interactions between muscularis macrophages and neurons, the presence and function of other immune cell types remains poorly characterized.

Dual-Ligand-Regulated Tb-Containing Antimonotungstate for the Heterogeneous Catalytic Synthesis of N-Heterocycles in Ethanol.

A novel Tb-containing antimonotungstate, [(CH)NH]Na[Tb(mal)(OAc)(WO)(SbWO)(HO)]·47HO, regulated by dl-malic acid and acetic acid (, Hmal = malic acid; HOAc = acetic acid), has been successfully synthesized. The structural analysis reveals that the polyanion of consists of four {B-α-SbWO} units interconnected by a decanuclear metal cluster {TbW(mal)(OAc)}. The flexible malic acid ligands involved in the coordinating process create a certain torsion angle, resulting in a twisted rectangular structure of polyanion .

Discovery of a Stripe Phase in an Elemental Solid.

Translational symmetry breaking is foundational to condensed matter physics because it is associated with crystal formation. At much lower energy scales, the breaking of crystalline translational symmetry can be driven by electronic, rather than ionic, degrees of freedom and may give rise to stripe order, a unidirectional ordered state. Such symmetry breaking has been seen in two-dimensional and strongly correlated systems.

Nonlinear association of physical activity with early cardiovascular-kidney-metabolic syndrome risk: a comprehensive analysis of NHANES data from 2007 to 2018.

Background: Cardiovascular-kidney-metabolic (CKM) syndrome, a newly defined cluster of interrelated cardiometabolic disorders, poses a global health burden. While physical activity (PA) is a cornerstone of metabolic health, its relationship with early CKM progression remains unclear. This study aims to explore the nonlinear dose-response evidence between PA and early CKM syndrome and highlights the potential PA thresholds to maximise metabolic health benefits, providing theoretical support for personalized PA guidelines.

Brain MRIs classification based on 2D SWD-MF-DFA.

Background: To improve imaging classification accuracy, we modify the traditional 2D multifractal trend fluctuation analysis (MF-DFA) method to better preserve local feature values. Inspired by MF-DFA, we develop a novel method for extracting eigenvalues, enhancing the precision of imaging analysis.

New Method: In this paper, we propose an enhanced algorithm building upon the traditional 2D MF-DFA.

Improvement of dynamic phosphene presentation for a cortical visual prosthesis is task-specific.

Cortical visual prostheses can restore vision by directly stimulating the neurons in the visual cortex. The goal of these prostheses is to elicit sufficient light perception, known as phosphenes, to represent complex scenes. However, stimulating a large number of electrodes in cortical visual prostheses can be problematic.

Electrically programmable pixelated coherent mid-infrared thermal emission.

Active metasurfaces have recently emerged as compact, lightweight, and efficient platforms for dynamic control of electromagnetic fields and optical responses. However, the complexities associated with their post-fabrication tunability significantly hinder their widespread applications, especially for the mid-infrared range due to material scarcity and design intricacy. Here, we experimentally demonstrate highly dynamic, pixelated modulations of coherent mid-infrared emission based on an electrically programmable plasmonic metasurface integrated with graphene field-effect transistors (Gr-FETs).

Synthesis of Highly Expandable Poly(methacrylimide) (PMI) Precursor Beads Through Optimized Suspension Polymerization of MAA-MAN-tBMA Copolymers.

Bead-foaming technology effectively addresses production cycles, polymerization control, and cellular structure defects in conventional bulk foaming, especially in high-performance PMI foams. In this work, highly expandable PMI beads were synthesized based on the aqueous suspension polymerization of methacrylic acid-methacrylonitrile-tert-butyl methacrylate (MAA-MAN-tBMA) copolymers. The suspension polymerization was stabilized by reducing the solubility of MAA by the salting-out effect and replacing formamide (a common PMI foaming agent) with tBMA.

Temperature-Dependent Structural Evolution of Ruddlesden-Popper Bilayer Nickelate LaNiO.

A recent article ( 2024, 146, 7506-7514) details a pressure-temperature (-) phase diagram for the Ruddlesden-Popper bilayer nickelate LaNiO (LNO-2222) using synchrotron X-ray diffraction. This study identifies a phase transition from (#63) to (#69) within the temperature range of 104-120 K under initial pressure and attributes the 4/ (#139) space group to the structure responsible for the superconductivity of LNO-2222. Herein, we examine the temperature-dependent structural evolution of LNO-2222 single crystals at ambient pressure.

Statistical modeling of single-cell epitranscriptomics enabled trajectory and regulatory inference of RNA methylation.

As a fundamental mechanism for gene expression regulation, post-transcriptional RNA methylation plays versatile roles in various biological processes and disease mechanisms. Recent advances in single-cell technology have enabled simultaneous profiling of transcriptome-wide RNA methylation in thousands of cells, holding the promise to provide deeper insights into the dynamics, functions, and regulation of RNA methylation. However, it remains a major challenge to determine how to best analyze single-cell epitranscriptomics data.

Polymorphism of Pb(PO)OH within the LK-99 mixture.

During the synthetic exploration targeting the polycrystalline compound LK-99, an unexpected phase, Pb(PO)OH, was identified as a byproduct. We elucidated the composition of this compound through single-crystal X-ray diffraction analysis. Subsequent synthesis of the target compounds was achieved via high-temperature solid-state pellet reactions.

POM-Based Hydrogels for Efficient Synergistic Chemodynamic/Low-Temperature Photothermal Antibacterial Therapy.

Bacterial infection of wound surfaces has posed a significant threat to human health and represents a formidable challenge in the clinical treatment. In this study, a novel antimicrobial hydrogel utilizing POM is synthesized as the primary component, with gelatin and sodium alginate as the structural framework. The resultant hydrogel demonstrates exceptional mechanical properties and viscoelasticity attributed to the hydrogen-bonded cross-linking between POM and gelatin, as well as the ionic cross-linking between sodium alginate and Ca.

Pseudosymmetry in Tetragonal Perovskite SrIrO Synthesized under High Pressure.

In this study, we report a tetragonal perovskite structure of SrIrO (4/, = 3.9362(9) Å, = 7.880(3) Å) synthesized at 6 GPa and 1400 °C, employing the ambient pressure monoclinic SrIrO with distorted 6 structure as a precursor.

Experimental and numerical study on explosion resistance of polyurea-coated shelter in petrochemical industry.

To reduce the number of casualties in explosion accidents, blast-resistant shelters can be used to protect personnel in high-risk areas of petrochemical processing plants. In this work, the deformation behaviours of uncoated and polyurea-coated blast-resistant plates were studied through gas explosion tests. An ANSYS/LS-DYNA model of a polyurea-coated shelter was established, and the dynamic responses of the shelter under various explosion loads were analysed.

Helminth infection driven gastrointestinal hypermotility is independent of eosinophils and mediated by alterations in smooth muscle instead of enteric neurons.

Intestinal helminth infection triggers a type 2 immune response that promotes a 'weep-and sweep' response characterised by increased mucus secretion and intestinal hypermotility, which function to dislodge the worm from its intestinal habitat. Recent studies have discovered that several other pathogens cause intestinal dysmotility through major alterations to the immune and enteric nervous systems (ENS), and their interactions, within the gastrointestinal tract. However, the involvement of these systems has not been investigated for helminth infections.

Uncovering the phonon spectra and lattice dynamics of plastically deformable InSe van der Waals crystals.

Stacking two-dimensional (2D) van der Waals (vdW) materials in a layered bulk structure provides an appealing platform for the emergence of exotic physical properties. As a vdW crystal with exceptional plasticity, InSe offers the opportunity to explore various effects arising from the coupling of its peculiar mechanical behaviors and other physical properties. Here, we employ neutron scattering techniques to investigate the correlations of plastic interlayer slip, lattice anharmonicity, and thermal transport in InSe crystals.

Volatile Organic Compounds Mediate Host Selection of Wheat Midge, Sitodiplosis Mosellana (Géhin) (Diptera: Cecidomyiidae) between Preanthesis and Postanthesis Stages of Wheat.

The orange wheat blossom midge, Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae), is a significant wheat pest in the Prairie Provinces of Canada and northern regions of the USA. Wheat phenology plays a critical role in wheat midge oviposition. We hypothesized that S.

In situ replacement of a failed implant to rescue a complete arch fixed prosthesis: A dental technique.

Implant failure may occur after the delivery of definitive prostheses. Avoiding replacement of a complete arch implant-supported fixed prosthesis becomes a significant challenge when placement of a new implant is necessary. This technical article introduces a protocol to replace a failed implant in situ, effectively rescuing the original prosthesis.

Long-Range Structural Order in a Hidden Phase of Ruddlesden-Popper Bilayer Nickelate LaNiO.

The recent discovery of superconductivity in the Ruddlesden-Popper bilayer nickelate, specifically LaNiO, has generated significant interest in the exploration of high-temperature superconductivity within this material family. In this study, we present the crystallographic and electrical resistivity properties of two distinct Ruddlesden-Popper nickelates: the bilayer LaNiO (referred to as 2222-phase) and a previously uncharacterized phase, LaNiO (1313-phase). The 2222-phase is characterized by a pseudo -centered orthorhombic lattice, featuring bilayer perovskite [LaNiO] layers interspaced by rock salt [LaO] layers, forming a repeated .