Influence of Exercise on Oxygen Consumption, Pulmonary Ventilation, and Blood Gas Analyses in Individuals with Chronic Diseases.

The increasing prevalence of chronic metabolic diseases poses a significant challenge in the modern world, impacting healthcare systems and individual life expectancy. The World Health Organization (WHO) recommends that older adults (65+ years) engage in 150-300 min of moderate-intensity or 75-150 min of vigorous-intensity physical activity, alongside muscle-strengthening and balance-training exercises at least twice a week. However, nearly one-third of the adult population (31%) is physically inactive, which increases the risk of developing obesity, type 2 diabetes, cardiovascular diseases, hypertension, and psychological issues.

Thermodynamic Miscibility-Guided Engineering of Bismuth-Tin Janus Catalysts for Durable Electrocatalytic CO Reduction.

Interfaces in heterogeneous bimetallic catalysts play a pivotal role in providing rich active sites and accelerating charge transfer during reaction process. However, designing an interface-rich catalyst with sufficient exposed active sites is crucial yet challenging. Janus catalysts containing bifunctional surfaces segregated by interfaces can boost the performance of electrochemical CO reduction by optimizing electronic structure and reaction pathway.

Enhancing -Butanol Sensing of Entropy-Stable Perovskite Oxides by Synergistic Adsorption and Increased Gas Diffusion of Surfaces.

High-entropy perovskite oxides have emerged as promising candidates for high-performance gas sensors due to their multicomponent, enhanced surface reactivity, and adjustable electronic structure. Herein, we synthesized a series of entropy-stabilized perovskite oxides, among which LaPrSmNdFeO exhibited exceptional -butanol sensing performance, achieving both a high response value (95-20 ppm) and an ultralow detection limit (100 ppb). Furthermore, through in situ Fourier transform infrared (FT-IR) spectroscopy and density functional theory (DFT) calculations, we uncovered two critical factors driving the superior gas-sensing performance: synergistic adsorption and gas diffusion of surface enhancement.

Flexible Epidermal Sensor Power Systems: Innovations in Multidimensional Materials and Biomedical Applications.

Epidermal sensors are pivotal components of next-generation wearable technologies. They offer transformative potential in health monitoring, motion tracking, and biomedical applications. This potential stems from their ultra-thin design, skin compatibility, and ability to continuously detect physiological signals.

Comprehensive Study on Design Optimization and Retardation Mechanism of SS-GGBS-FA Ternary Geopolymer Mortar.

A ternary geopolymer mortar (TGM) was synthesized using steel slag (SS), granulated blast furnace slag (GGBS), and fly ash (FA) as raw materials. The effect of the SS content (0-60%) and the GGBS/FA mass ratio (5:1 to 1:5) on the TGM's setting time was studied. To address the issue of rapid setting, the impact of different mixing methods ((A) dry mixing, (B) pre-dissolution, and (C) pre-coating) and dosages of BaCl on the setting and hardening properties of TGM was further explored.

Methods for Designing High-Precision Relaxation Oscillator.

A novel low-power delay time cancellation (LPDTC) technique and a current ratio adjustment (CRA) method are proposed for designing high-precision relaxation oscillators. These methods effectively reduce the impacts of comparator delay time, offset voltage, and temperature-induced variations in resistors. To validate these methods, we have designed and simulated an 8 MHz open-loop relaxation oscillator using a 40 nm CMOS process.

Emission characteristics of VOCs from the typical spent lithium-ion battery recycling industry.

In recent years, with the rapid rise in electric vehicles and renewable energy storage solutions, decommissioning spent lithium-ion batteries (LIBs) has become an increasingly pressing issue. The volatile organic compounds (VOCs) generated during the recycling of LIBs caused environmental pollution and health hazards. This work investigated the emission characteristics of VOCs from two typical spent LIB recycling plants.

Recent Advances in Nanomaterial-Based Self-Healing Electrodes Towards Sensing and Energy Storage Applications.

Nanomaterial-based self-healing electrodes have demonstrated significant potential in sensing and energy storage applications due to their ability to withstand electrical breakdowns at high electric fields. However, such electrodes often face mechanical challenges, such as cracking under stress, compromising stability and reliability. This review critically examines nanomaterial-based self-healing mechanisms, focusing on properties and applications in health monitoring, motion sensing, environmental monitoring, and energy storage.

Development of a Multienzyme Cascade for Salvianolic Acid A Synthesis from l-Tyrosine.

Salvianolic acid A (SAA) has an important application value for preventing and treating cardiovascular diseases. In this study, we developed a novel multienzyme cascade system for the efficient biosynthesis of SAA, utilizing l-tyrosine (l-Tyr) as a cost-effective and stable starting material. The cascade system incorporated four enzymes: membrane-bound l-amino acid deaminase from (ml-AAD), d-lactate dehydrogenase from (d-LDH), 4-hydroxyphenylacetate 3-hydroxylase from (HpaBC), and formate dehydrogenase from N10 (FDH).

Enrichment and purification of trace substances from yew extracum by twin-column recycling chromatography with a step solvent gradient.

The concentration and purification of trace substances from natural products represent a bottleneck in current chromatographic separations. In this study, a twin-column recycling chromatography with a step solvent gradient method was proposed and successfully applied in the purification of unknown substances with tiny content in yew extracum. The method consists of two steps.

Development and Characterization of Sustainable Cement-Free Controlled Low Strength Material Using Titanium Gypsum and Construction Waste Soil.

This study investigates the utilization of titanium gypsum (TG) and construction waste soil (CWS) for the development of sustainable, cement-free Controlled Low Strength Material (CLSM). TG, combined with ground granulated blast furnace slag, fly ash, and quicklime, serves as the binder, while CWS replaces natural sand. Testing thirteen mixtures revealed that a CWS replacement rate of over 40% controls bleeding below 5%, with a water-to-solid ratio between 0.

A Normal Displacement Model and Compensation Method of Polishing Tool for Precision CNC Polishing of Aspheric Surface.

The position accuracy of the polishing tool affects the surface quality of the polished aspheric surface. The contact deformation among the polishing tool, abrasives, and aspheric part can cause a displacement, which, in turn, will cause a position error of the polishing tool, which will lead to a significant change in the polishing force. In order to resolve this error, this paper proposed a method of normal displacement compensation for a computer numerical controlled (CNC) polishing system by controlling the polishing force.

Cross-sectional survey of gender differences in gross motor skills among preschool children in Jinhua City, China.

Background: While gender differences in ball skills are widely recognized, the differences in locomotor skills remain unclear. This study aims to explore these gender differences among preschool children in Jinhua City, China, and to examine the influence of evolutionary factors and local cultural activities on these skills.

Methods: A cluster random sampling method was employed to select 777 preschool children aged 5.

Applying information mining technology in online entrepreneurship training course.

The purpose of this study is to deeply explore the application of information mining technology in online entrepreneurship training courses, and to improve students' learning effects and entrepreneurship success rate through systematic analysis and optimization of key data in the teaching process. With the development of online education, how to effectively use big data technology to meet personalized learning needs has become an important issue. This study takes several online entrepreneurship training courses as the research object, and uses information mining technology to extract and analyze students' behavioral data during course participation, including data on study time, interaction frequency, assessment results, etc.

Ru incorporated into Se vacancy-containing CoSe as an efficient electrocatalyst for alkaline hydrogen evolution.

In alkaline media, slow water dissociation leads to poor overall hydrogen evolution performance. However, Ru catalysts have a certain water dissociation performance, thus regulating the Ru-H bond through vacancy engineering and accelerating water dissociation. Herein, an excellent Ru-based electrocatalyst for the alkaline HER has been developed by incorporating Ru into Se vacancy-containing CoSe (Ru-V-CoSe).

SO removal by submicron absorbents synthesized via inhibition method: The product layer grows like parallel peaks.

Injecting calcium hydroxide powder into the flue gas is an effective strategy for SO removal. However, commercial calcium hydroxide has several disadvantages, including large particle size, low efficiency, and unsuitability for excessive grinding. In this work, sub-micron calcium hydroxide was synthesized by an inhibition method and its performance for SO removal from flue gas was investigated on a pilot-scale platform (120 Nm/h).

Understanding the acceptance of online tourism programs: Perspectives of generic learning outcomes and theory of planned behavior.

The integration of information technology, particularly the Internet, with the tourism industry has laid a solid foundation for the widespread popularity of online tourism. Online tourism offers numerous advantages such as being unconstrained by time, space, and region, having low costs, and providing strong interactive features, making it increasingly popular worldwide. Nevertheless, not all individuals are willing to adopt online tourism, and the factors and mechanisms that influence online tourism require further investigation.

Conversion of high moisture biomass to hierarchical porous carbon via molten base carbonisation and activation for electrochemical double layer capacitor.

Biomass-derived carbon for supercapacitors faces the challenge of achieving hierarchical porous carbon with graphitic structure and specific heteroatoms through a single-stage thermal process that minimises resource input. Herein, molten base carbonisation and activation is proposed. The process utilises the inherent moisture of Moso bamboo shoots, coupled with a low amount of KOH, to form potassium organic salts before drying.

Study on the Shear Strength of Loess Solidified by Guar Gum and Basalt Fiber.

Loess is widely distributed in the northwest and other regions, and its unique structural forms such as large pores and strong water sensitivity lead to its collapsibility and collapse, which can easily induce slope instability. Guar gum and basalt fiber are natural green materials. For these reasons, this study investigated the solidification of loess by combining guar gum and basalt fiber and analyzed the impact of the guar gum content, fiber length, and fiber content on the soil shearing strength.

Ultra-small gold nanoparticles embedded cyclodextrin metal-organic framework composite membrane to achieve antibacterial and humidity-responsive functions.

Cyclodextrin metal-organic framework (CD-MOF) is an edible and porous material that can serve as a template for synthesizing small-sized metal nanoparticles. However, its highly hydrophilic nature has limited its wider application. Herein, ultra-small gold nanoparticles (U-AuNPs) were loaded into CD-MOF to produce a composite material Au@CD-MOF.

Innovative Material-Based Wearable Non-Invasive Electrochemical Sweat Sensors towards Biomedical Applications.

Sweat is an accessible biofluid that provides useful physiological information about the body's biomolecular state and systemic health. Wearable sensors possess various advantageous features, such as lightweight design, wireless connectivity, and compatibility with human skin, that make them suitable for continuous monitoring. Wearable electrochemical sweat sensors can diagnose diseases and monitor health conditions by detecting biomedical signal changes in sweat.

Water-Oil Interfacial Synthesis of Two-Dimensional Colloidal Lead-Iodide Perovskites with Enhanced Efficiency and Stability.

Two-dimensional Ruddlesden-Popper perovskites LPbI (L = alkylammonium cation) (RPPs) have attracted significant attention due to their unique excitonic characteristics. However, their ultrafast reaction dynamics exacerbates the structural distortion of the inorganic framework, leading to severe deterioration in photoluminescence. Here, we propose a water-oil interfacial synthesis approach to achieve controlled growth of the RPPs nanosheets.

Investigating the Influence of Fluctuating Humidity and Temperature on Creep Deformation in High-Performance Concrete Beams: A Comparative Study between Natural and Laboratorial Environmental Tests.

To investigate the influence of temperature and humidity variations on creep in high-performance concrete beams, beam tests were conducted in both natural and laboratory settings. The findings indicate that the variations in creep primarily stem from temperature changes, whereas humidity changes have little influence on fluctuations in both basic creep and total creep. The influence of humidity on creep is more strongly reflected in the magnitude of creep.