Browse Articles

Wearable devices detect physiological changes that precede and are associated with symptomatic and inflammatory rheumatoid arthritis flares

Electronic and thermal properties of hybridized and nanostructured forms of SnSe

The effect and durability of postural education and corrective games on the alignment of the thoracic and cervical spine and the daily habits in children

Abstract This study aims to compare the effects of posture education and corrective games on the alignment of the thoracic and cervical spine, as well as the daily habits in children. This is a three-armed individual-randomized trial design of three groups in blinded evaluators. The statistical population of this study was formed by elementary students with malalignments in the thoracic and cervical spine of Baharestan city (Iran). A total of 60 participants were assigned to this study and using a simple random method with computer-generated random numbers divided into posture education group (PE, n  = 20) corrective games group (CG, n  = 20) and control group (CON, n  = 20) groups. Kyphosis angle, forward head posture and forward shoulder posture measured with a flexible ruler, goniometer, and double square, respectively. Also, daily habits measured with students’ daily functional activities questioner. A repeated measures ANOVA analysis of variance (3 × 3, Group×Time) was utilized to analyze data. Significance was set at p  ≤ 0.05. Both the PE and CG showed significant improvements in kyphosis ( p  = 0.01 for PE, p  = 0.02 for CG), forward head posture ( p  = 0.02 for PE, p  = 0.04 for CG), forward shoulder posture ( p  = 0.001 for PE, p  = 0.02 for CG), and daily habits ( p  = 0.02 for PE, p  = 0.03 for CG) after an 8-week training intervention compared to the CON group. Also, after the training period, the analysis revealed no statistically significant differences in the dependent variables between the PE group and the CG, with a p-value greater than 0.05. However, after a 3-month detraining period, the changes in both the PE and CG were found to be statistically insignificant ( p  > 0.05). The interventions effectively enhanced participants’ posture and daily activity patterns, with no significant differences between the PE and CG groups. The sustainability of these improvements indicates that participants developed lasting skills and habits that promote spinal health. This study highlights the importance of integrating educational and engaging physical activities into curricula to support children’s musculoskeletal well-being. Trial registration : IRCT registration number: IRCT20250316065103N1, Registration date: 2025-03-25 (Retrospectively registered), Trial Id: 82539.

Novel synthesis of flexible polyurethane foams with high bio-based content derived from waste cooking oil

Caenorhabditis elegans microbiome members have combinatorial effects on host survival and fitness

AIFS: an efficient face recognition method based on AI and enhanced few-shot learning

Mathematical modeling of a fan heater using a three-dimensional temperature measurement system

Adaptive model predictive control for robust lateral motion tracking of semi-autonomous vehicles with dynamic parameter variation

HyperFusionNet combines vision transformer for early melanoma detection and precise lesion segmentation

Meaning in life improves response to others’ self-promotion

Study on surface microstructure of cylindrical roller bearings for open-pit coal mine conveyors

Multiband SERS substrate using switchable hot spots of the inline graphene-wrapped nanoparticle chains

Impact of soil and climate on barley (Hordeum vulgare L.) salinity tolerance in diverse arid and saline conditions

A hybrid CNN–ViT framework with cross-attention fusion and data augmentation for robust brain tumor classification

Modeling and dynamical analysis of the impact of alcohol consumption on tuberculosis transmission with optimal control strategies

ISAC based seamless handover solution for SAGIN in high mobility environments

Abstract Seamless and uninterrupted connectivity within high-mobility environments (e.g. aerospace and high-speed terrestrial transportation) drives a critical demand for Space-Air-Ground Integrated Networks (SAGIN). In such dynamic environments, conventional handovers lead to frequent loss of connection, higher latency, and diminished quality-of-service (QoS). A new high-mobility handover procedure for SAGIN based on the concept of Integrated Sensing and Communication (ISAC) is introduced. We suggest a new method using real-time environmental perception to improve the decision-making of hand over, reducing the frequency of handover, and balancing the spatial, air and ground network resource allocation. It combines dynamic priority scheduling and a cross-layer communication protocol into a general handover procedure for seamless mobility between network layers. MATLAB-based simulations show that, when compared to existing ground-based and satellite-assisted handover methods, the overhead of LEO-enabled handovers often results in a substantial reduction in latency while simultaneously providing enhanced network throughput with minimum packet loss. The results show that our approach is appropriate to preserve an agreement on the quality received in highly dynamic environments, opening perspectives with novel scientific questions for SAGIN and high-mobility networks.

Long-term influence and calculation model of temperature on strength of marine soft clay solidified with calcium carbide residue-fly ash geopolymer

Performance evaluation of a solar hybrid collector with dryer experimental and machine learning approach

Double event-triggered fault tolerant consensus of nonlinear heterogeneous multiagent systems under inconsistent Markov

Unveiling the nanotoxicology of snake venoms through functional and biochemical characterization of extracellular vesicles from Naja naja and Daboia russelii

Abstract Snake venom is a complex biochemical arsenal that exerts multifaceted effects on host physiology, primarily targeting the hemostatic, cellular, and metabolic systems. Recent attention has turned to venom-derived extracellular vesicles (EVs) as active carriers of toxin components. The current study comparatively evaluates the hematological and enzymatic effects of crude venoms and EVs from Naja naja and Daboia russelii across key physiological parameters: prothrombin time (PT), activated partial thromboplastin time (aPTT), red blood cell hemolysis, and purinergic enzyme activity (ATPase and ADPase). Both venoms and their EVs caused dose-dependent alterations in coagulation, with EVs significantly prolonging aPTT and PT, indicating intrinsic and extrinsic pathway inhibition. Hemolysis assays revealed sex-specific erythrocyte susceptibility, with higher rates observed in female samples. Additionally, venom-derived EVs modulated ATPase and ADPase activity, interfering with cellular energy metabolism and thromboregulation. Our findings establish venom EVs as potent functional units that replicate and amplify native venom toxicity. These results underscore the importance of targeting EV-associated toxins in antivenom development and highlight the evolving complexity of venom systems biology. This study broadens our understanding of venom pathophysiology and identifies novel diagnostic and therapeutic avenues against snakebite envenomation.