Instrumented measures of sedentary behavior and physical activity are associated with depression among children and adolescents: a systematic review and dose-response meta-analysis of observational studies.

Background: Higher sedentary behavior (SB) and lower physical activity (PA) are associated with negative physical and mental health outcomes. SB and PA can be objectively assessed using inertial sensors to evaluate body movements. This study aimed to quantify the association between instrumented measures of SB (i-SB) and PA (i-PA) and depression among children and adolescents using a systematic review and meta-analysis of observational studies.

The dose-response relationship between physical activity and the risk of death from pneumonia in middle-aged and older adults: A meta-analysis.

Background: Deaths from COVID-19 are concentrated in older adults, and studies have reported that physical activity (PA) can reduce the risk of death from pneumonia.

Methods: Eight cohort studies and 2 case-control studies were included according to the inclusion and exclusion criteria established in this meta-analysis study followed the PRISMA guideline, 8 cohort studies and 2 case-control studies were finally included. Then, the research objects in these studies were classified to further study the dose-response relationship and non-dose-response relationship.

Hydrothermal route upcycling surgical masks into dual-emitting carbon dots as ratiometric fluorescent probe for Cr (VI) and corrosion inhibitor in saline solution.

Exploration effective route to convert plastic waste into valuable carbon dots with bifunction of metal fluorescence monitoring and corrosion protection in seawater is promising. Herein, using "white-pollution" polypropylene surgical masks as a single precursor, dual-emitting carbon dots (CDs) with excellent ratiometric fluorescent sensitivity and corrosion inhibitor efficiency were fabricated with high yield (∼100 %) by a one-pot in situ acid oxidation hydrothermal strategy without post-treatment and organic solvents. Chemical, structural, morphological, optical properties and the Cr (VI) detection and Cu inhibition mechanism of the synthesized CDs had been systematically studied.

Continuous and Scalable Synthesis of Prussian Blue Analogues with Tunable Structure and Composition in Surfactant-Free Microreactor for Stable Zinc-Ion Storage.

We represent a segmented flow surfactant-free microfluidic strategy for continuous synthesis of Prussian blue analogues (PBAs) with high dispersity and high crystallization. Representative zinc hexacyanoferrate (ZnHCF) nanocubes were successfully synthesized in a microfluidic reactor within a few minutes via the cooperation method and possessed lower contents of crystal water and Fe(CN) vacancies than that of synthesis in bulk solution. The nucleation and particle growth process can be precisely controlled by the exploration of different flow rates and reaction temperatures during the formation of ZnHCF nanocubes in segmented flow microfluidic reactors.

Coupling Ferricyanide/Ferrocyanide Redox Mediated Recycling Spent LiFePO with Hydrogen Production.

Replacing the oxygen evolution reaction with thermodynamically more favorable alternative oxidation reactions offers a promising alternative to reduce the energy consumption of hydrogen production. However, questions remain regarding the economic viability of alternative oxidation reactions for industrial-scale hydrogen production. Here, we propose an innovative cost-effective, environment-friendly and energy-efficient strategy for simultaneous recycling of spent LiFePO (LFP) batteries and hydrogen production by coupling the spent LFP-assisted ferricyanide/ferrocyanide ([Fe(CN) ] /[Fe(CN) ] ) redox reaction.

Reactivation of redox active materials boosts the performance of electrochemical desalination with coupling energy storage.

Aqueous redox flow battery (RFB) desalination is considered as an emerging technology for both freshwater production and energy storage. However, the desalination capacity of desalination RFB is constrained by the amount of redox active materials. To break through this innate limit, a tandem redox strategy is reported to boost the desalination capacity of desalination RFB through reactivating the depleted redox active materials to achieve relay desalination.

Scrolling reduced graphene oxides to induce room temperature magnetism spatial coupling of defects.

Due to its intriguing features and numerous applications, graphene has garnered a lot of interest in recent years. However, it is still very difficult to create graphene-based room-temperature magnets without transition metals or rare earth elements since pristine graphene is inherently diamagnetic due to the delocalized π bonding network. Herein, room-temperature ferromagnetism with a saturation magnetization of 0.

Lithium Ferrocyanide Catholyte for High-Energy and Low-cost Aqueous Redox Flow Batteries.

Aqueous redox flow batteries (ARFBs) are a promising technology for grid-scale energy storage, however, their commercial success relies on redox-active materials (RAM) with high electron storage capacity and cost competitiveness. Herein, a redox-active material lithium ferrocyanide (Li [Fe(CN) ]) is designed. Li ions not only greatly boost the solubility of [Fe(CN) ] to 2.

Baseline physical activity and the risk of severe illness and mortality from COVID-19: A dose-response meta-analysis.

To provide a scientific basis for improved exercise-based immunity, a -analysis was used to explore the dose-response relationship between physical activity (PA) and the risk of severe illness and mortality related to COVID-19 (coronavirus disease 2019). To this end, we searched PubMed, Web of Science databases from January 2020 through April 2022. 14 observational studies met the criteria for inclusion in the -analysis, including 2840 cases of severe illness and death from COVID-19.

Association of physical activity and the risk of COVID-19 hospitalization: A dose-response meta-analysis.

Background: Many people have experienced a high burden due to the spread of the coronavirus disease (COVID-19) and its serious consequences for health and everyday life. Prior studies have reported that physical activity (PA) may lower the risk of COVID-19 hospitalization. The present meta-analysis explored the dose-response relationship between PA and the risk of COVID-19 hospitalization.

Bidirectional Tandem Electrocatalysis Manipulated Sulfur Speciation Pathway for High-Capacity and Stable Na-S Battery.

The sluggish polysulfide redox kinetics and the uncontrollable sulfur speciation pathway, leading to serious shuttling effect and high activation barrier associated with sulfur cathode. We describe here the use of core-shell structured composite matrixes containing abundant catalytic sites for nearly fully reversible cycling of sulfur cathodes for Na-S batteries. The bidirectional tandem electrocatalysis provide successive reversible conversion of both long- and short-chain polysulfides, whereas Fe O accelerates Na S /Na S to Na S conversion and the redox-active Fe(CN) -doped polypyrrole shell catalyzes Na S reduction to Na S.

Advances in the regulation of kinetics of cathodic H/Zn interfacial transport in aqueous Zn/MnO electrochemistry.

Rechargeable aqueous Zn-MnO energy storage systems have attracted extensive attention owing to their high theoretical capacity and non-flammable mild aqueous electrolytes. Nevertheless, the complicated reaction mechanism of a MnO-based cathode severely restricts its further development. Therefore, it is crucial to clarify the kinetics of H/Zn interfacial transport in the MnO cathode for realizing controllable regulation of interfacial ion transport and then realizing high capacity and long lifespan.

Leisure-time physical activity and risk of depression: A dose-response meta-analysis of prospective cohort studies.

Background: There has never been a dose-response meta-analysis of the relationship between physical activity and the risk of depression. Hence, we aimed to explore the dose-response relationship between leisure-time physical activity (LTPA) and the risk of depression through a meta-analysis to provide a basis for the prevention of depression.

Methods: PubMed and Web of Science databases were searched using a computer to collect prospective cohort studies on the relationship between LTPA and depression between January 1997 and July 2021.

Study of resistance performance of AlO-ZnO-YO thermal control coating exposed to vacuum-ultraviolet irradiation.

As deep space exploration moves farther and farther away, thermal control coating of the in-orbit spacecraft will suffer a serious vacuum-ultraviolet radiation environment, which seriously threatens the reliability of the spacecraft in orbit. Therefore, it is important to improve the vacuum-ultraviolet resistance performance of the thermal control coating. In this work, the inorganic AlO-ZnO-YO thermal control coating was fabricated on a 6061 aluminum alloy surface by PEO technology, and its vacuum-ultraviolet resistance performance was investigated.

EPA and DHA differentially coordinate the crosstalk between host and gut microbiota and block DSS-induced colitis in mice by a reinforced colonic mucus barrier.

: Ulcerative colitis (UC) is a chronic inflammatory disorder of the colon with a continuously remitting and relapsing course. Its etiology is closely related to abnormal interactions between host and gut microbiota. The mucus barrier lining the gastrointestinal tract is necessary to coordinate host and gut microbiota interaction by nourishing and modulating the microbiota.

Effects of nutritional support combined with insulin therapy on serum proteins, inflammatory factors, pentraxin-3, and serum amylase levels in patients with diabetic ketoacidosis complicated with acute pancreatitis.

To explore the effects of nutritional support combined with insulin therapy on serum protein, procalcitonin (PCT), C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), pentraxin-3 (PTX-3), and serum amylase (AMS) levels in patients with diabetic ketoacidosis complicated with acute pancreatitis.A total of 64 patients with diabetic ketoacidosis complicated with acute pancreatitis admitted to our hospital from January 2018 to February 2019 were enrolled in this prospective study. They were divided into the study group and the control group according to the random number table method, with 32 patients in each group.

Correlation between PCT, 25(OH)D, PTX-3, AMS levels and the severity of diabetic ketoacidosis complicated by pancreatitis.

Background: This study aims to explore the correlation between procalcitonin (PCT), 25-hydroxyvitamin D3 (25(OH)D), pentraxin-3 (PTX-3), amylase (AMS) levels and severity of diabetic ketoacidosis complicated by pancreatitis.

Methods: A retrospective analysis of 198 patients with diabetic ketoacidosis admitted to our hospital from January 2015 to February 2020 were included. According to whether the patients with pancreatitis, subjects were divided into diabetic ketoacidosis with pancreatitis (DKA-AP) group and diabetic ketoacidosis (DKA) group.

Leisure time physical activity and risk of pneumonia mortality: a dose-response meta-analysis.

Introduction: This meta-analysis of cohort studies aimed to examine the dose-response relationships between LPTA (leisure time physical activity) and pneumonia mortality to provide some suggestions for the prevention of respiratory disease mortality.

Evidence Acquisition: PubMed, WOS database were systematically searched for eligible studies until November 1, 2020. The prospective cohort study on the relationship between LPTA and pneumonia mortality was collected.

The effect of insulin pump combined with ulinastatin on the levels of PCT, TG, PTX-3, and CX3CL1 in patients with diabetic ketoacidosis and pancreatitis.

The aim of this research is to observe the effect of insulin pump combined with Ulinastatin on the levels of procalcitonin (PCT), triglycerides (TG), pentraxin-3(PTX-3), and C-X3-C motif chemokine ligand 1 (CX3CL1) in patients with diabetic ketoacidosis and pancreatitis.A total of 72 patients with diabetic ketoacidosis and pancreatitis who were admitted to our hospital from February 2016 to February 2020 were selected as the research subjects. They were divided into study groups (36 cases, given insulin pump combined Ulinastatin treatment) and control group (36 cases, given insulin pump treatment).

Differential effects of EPA and DHA on DSS-induced colitis in mice and possible mechanisms involved.

Background: The anti-inflammatory effect of n-3 PUFAs has been widely documented. Emerging evidence suggests that the main component of n-3 PUFAs, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), may have differential effects in ulcerative colitis (UC). It was aimed to clarify their differential effects in UC.

The Efficacy and Safety of 3 Types of Interventions for Stroke Prevention in Patients With Cardiovascular and Cerebrovascular Diseases: A Network Meta-analysis.

Purpose: The goal of this study was to compare the relative efficacy and safety of different types of interventions for stroke prevention in patients with cardiovascular and cerebrovascular diseases.

Methods: This network meta-analysis (NMA) was conducted with a random effects model of Bayesian framework using Stata version 12.0.

Chemical grafting of CoS onto C for hydrogen spillover and storage.

Metal modified C is considered to be a potential hydrogen storage medium due to its high theoretical capacity. Research interest is growing in various hybrid inorganic compounds-C. While the design and synthesis of a novel hybrid inorganic compound-C is difficult to attain, it has been theorized that the atomic hydrogen could transfer from the inorganic compound to the adjacent C surfaces via spillover and surface diffusion.

Atomic layer deposition of ZnO on carbon black as nanostructured anode materials for high-performance lithium-ion batteries.

Although zinc oxide (ZnO), a low-cost and naturally abundant material, has a high theoretical specific capacity of 987 mA h g for hosting lithium ions, its application as an anode material has been hindered by its rapid capacity fading, mainly due to a large volume change (around 228%) upon repeated charge-discharge cycles. Herein, using carbon black (CB) powder as a support, ZnO-carbon black (denoted as ZnO-CB) nanocomposites were successfully fabricated using the atomic layer deposition (ALD) method. This method was able to produce strong interfacial molecular bindings between ZnO nanoclusters and the carbon surface that provide stable and robust electrical contact during lithiation and delithiation processes, as well as ZnO nanoclusters rich in oxygen vacancies (OVs) for faster Li-ion transport.

A Sheet-like Carbon Matrix Hosted Sulfur as Cathode for High-performance Lithium-Sulfur Batteries.

Lithium-sulfur (Li-S) batteries are a promising candidate of next generation energy storage systems owing to its high theoretical capacity and energy density. However, to date, its commercial application was hindered by the inherent problems of sulfur cathode. Additionally, with the rapid decline of non-renewable resources and active appeal of green chemistry, the intensive research of new electrode materials was conducted worldwide.

Three-dimensional sulfur/graphene multifunctional hybrid sponges for lithium-sulfur batteries with large areal mass loading.

In this communication, we introduce the concept of three dimensional (3D) battery electrodes to enhance the capacity per footprint area for lithium-sulfur battery. In such a battery, 3D electrode of sulfur embedded into porous graphene sponges (S-GS) was directly used as the cathode with large areal mass loading of sulfur (12 mg cm(-2)), approximately 6-12 times larger than that of most reports. The graphene sponges (GS) worked as a framework that can provide high electronic conductive network, abilities to absorb the polysulfides intermediate, and meanwhile mechanical support to accommodate the volume changes during charge and discharge.