Palmharbo2431

High-voltage and low-cost manganese-based P2-type oxides show real promise as promising cathode for sodium-ion batteries (SIBs). But the P2 - O2 phase transformation and Na+/vacancy ordering results in the inferior structural stability and Na+ diffusion coefficient, which further leads to rapid decay of capacity and poor rate capability. Herein, in consideration of the synergetic effects of dual cationic doping, electrochemically inactive Li+ and active Co3+ codoping are proposed to solve the above issues. The novel two-step doping strategy, Co doping during synthesis of precursors via coprecipitation reaction followed by Li doping during solid-state reaction, are rationally developed. As anticipated, the Li/Co codoped P2-type oxide exhibits the absence of P2 - O2 phase transformation and Na+/vacancy disordering, which gives rise to an outstanding cycling stability (86.7% capacity retention within 100 cycles at 0.1C) and high-rate capability (reversible capacity of 109 mAh g-1 even at 10C). In addition, the full-cells composed of the codoped P2-type positive and hard carbon negative show high energy-density, good lifespan and high-rate property. This proposed cationic codoping provides an effective and scalable tactics for modulating the structural properties of high-voltage P2-type cathodes for advanced SIBs.

Photoswitchable surfactants are used in the design of many light-responsive colloids and/or self-assemblies. Photo-isomerization enables to control molecular equilibrium, and triggers transient reorganizations with possibly out-of-equilibrium intermediate states that have been overlooked. Here, we address this question by an in depth structural investigation of intermediate lipid-surfactant assemblies that occur during fast isothermal photo-triggered transition in lipidsurfactant mixtures.

The structural parameters of mixed assemblies of azobenzene-containing cationic surfactant (AzoTMA) and dioleoylphosphatidylcholine (DOPC) lipids were studied by light scattering and time-resolved small angle X-ray scattering. Structural and compositional information about the assemblies and unimers in bulk were determined at the photostationary states, as well as at intermediate kinetic states formed during UV or blue light illumination.

DOPCAzoTMA systems form mixed assemblies representative of phospholipidcationic ed assemblies, suggesting that out-of-equilibrium conditions are transiently reached. Mass reorganization of the surfactant-enriched assemblies is much faster than in the lipid enriched ones, providing insight into the role of lipids in a slow reorganization of the assemblies.

Polyurethane plastic waste (PUPW), a port-abundant solid waste, is difficult to degrade naturally and poses a severe threat to the environment. Hence, the effective recycling of PUPW remains a challenge.

Herein, a strategy of converting PUPW into stacked oil/water filtration layer grain through a layer-by-layer (LBL) assembly process is investigated. Notably, such PU-based, grain-stacked, and switchable wettability of the oil/water filter layer is first reported.

The grain-stacked filter layers are flexible for separating immiscible oil/water mixtures, water-in-oil emulsions (WOE), and oil-in-water emulsions (OWE) under gravity over 10 cycle-usages. They can withstand strong acid/alkali solutions (pH=1-14) and salt solutions over 12h. Besides, 100-times scale-up experiments have indicated that the obtained filter layers exhibit an upper to 98.2 % separation efficiency for 10L real industrial oil/water emulsion in the 24h continuous operation. The demulsification mechanism for emulsions is that the electc interaction along with adsorption between emulsion droplets and grains leads to the uneven distribution of surfactants on the interface film of the emulsion droplets, increasing the probability of tiny droplets colliding and coalescing into large droplets to achieve oil/water separation. This work proposes an effective and economical method of abundant plastic waste for industrial-scale oil-water separation rather than just on the laboratory-scale.Semiconductor materials have been used for photocatalytic degradation since they were discovered to be useful for photocatalytic degradation. Many studies have been researched to improve the efficiency of photocatalytic degradation. Among them, the introduction of vacancies to improve the photocatalytic efficiency has been verified to be a more feasible method. 7-Ketocholesterol In this study, we combined two-dimensional (2D) graphite carbon nitride (g-C3N4) nanosheets with oxygen-containing vacancy zero-dimensional (0D) Bi2WO6 (BWO-OV) quantum dots to prepare 2D-0D g-C3N4/Bi2WO6-OV composite catalyst. The use of Bi2WO6 containing oxygen vacancies enhanced the absorption of light and increased the generation of photogenerated carriers. In addition, the formation of heterojunction and the vacancy structure of Bi2WO6 promote the life of photogenerated carriers and improve the catalytic effect of the catalyst. This structure shows high efficiency in removing low concentration (0.5 ppm) of nitric oxide (NO) at room temperature. The efficiency of the composite catalyst is much higher than g-C3N4 or BWO-OV, and better than the composite g-C3N4/Bi2WO6 without oxygen vacancies. When applied to NO removal, the composite g-C3N4/Bi2WO6-OV-10 showed the best catalytic activity which was up to 61.2%. At the same time, five cycles of experiments show that the material has excellent stability.

This study sought to determine the safety and efficacy of paclitaxel (PTX) devices in the treatment of peripheral artery disease involving the femoropopliteal artery.

A meta-analysis of PTX devices for the treatment of femoropopliteal artery disease reported a mortality signal.

This was a multicenter cohort study using an integrated clinical data surveillance system to conduct a prospective, propensity score-matched survival analysis of 2,456 patients in the Society for Vascular Surgery Vascular Quality Initiative from January 2017 to May 2020. The study compared PTX drug-coated balloon angioplasty versus percutaneous transluminal balloon angioplasty, PTX drug-eluting stents versus bare-metal stents, and any PTX device versus any non-PTX device. The primary outcome was 2-year survival. Secondary endpoints were successful ambulation and interventional success.

Treatment with any PTX device versus any non-PTX device was associated with increased 2-year survival (89.5% vs 86.7%; HR 0.79; 95% CI 0.72-0.87lysis [VQI-PTX]; NCT04110288).Chronic limb-threatening ischemia (CLTI) is prevalent and associated with morbidity and mortality. The published research concerning CLTI therapeutics is evolving. The goals of this review are to 1) summarize the endpoints that are being used in trials assessing interventions for patients with CLTI; and 2) review gaps and discrepancies in current outcome definitions. A search was conducted of the PubMed database and ClinicalTrials.gov to identify studies published between January 2000 and March 2020 that evaluated treatment options for patients with CLTI. Meta-analyses, case series, case reports, abstracts, and expert opinion were excluded. Forty-nine studies (n = 11,667) were identified that fulfilled the inclusion criteria. Most trials reported clinical outcomes (mortality, 69.4%; limb events, 87.8%; target lesion revascularization, 83.7%). Mean follow-up duration was 23.7 months. In investigational device exemption trials, total follow-up and follow-up to primary outcomes were discordant (12 months vs 6 months; P = 0.0018). Hemodynamic testing was reported in 71.4%, usually ankle-brachial index. Patency was assessed in 89.8% of trials; ultrasound was used in 65.3% and invasive angiography in 85.7%, at baseline and/or during follow-up. Wound assessment was performed in 49.0% of studies, qualitative in 28.6% and quantitative in 20.4%. Finally, quality of life assessment was performed in 55% of studies. Definitions for many outcomes varied across studies. Consensus regarding which outcomes to study, uniform definitions, and optimal methods to measure some of these outcomes are yet to be established. A comprehensive effort by all stakeholders is needed to move the field of CLTI forward.

The aim of this study was to investigate changes in quality of life (QoL) after transcatheter tricuspid valve repair (TTVR) for tricuspid regurgitation (TR).

TTVR provides feasible and durable efficacy in reducing TR, but its clinical benefits on QoL still remain unclear.

In 115 subjects undergoing TTVR for severe functional TR, QoL was evaluated using the 36-Item Short Form Health Survey (SF-36) and the Minnesota Living With HeartFailure Questionnaire (MLHFQ). All-cause mortality, heart failure (HF) rehospitalization, and a composite endpoint of all-cause mortality, HF rehospitalization, and repeat TTVR were recorded as clinical events.

Successful device implantation was achieved in 110 patients (96%). Moderate or less TR at discharge was achieved in 95 patients (83%). Mean SF-36 physical component summary (PCS) score improved from 34 ± 9 to 37 ± 9 points (+3 points; 95% CI 1-5 points; P=0.001), mean SF-36 mental component summary score improved from 49 ± 9 to 51 ± 10 points (+2 points; 95% CI 0-4 pooutcome surrogate following TTVR.Recent advances in transcatheter interventions have refueled the interest in utilizing invasive hemodynamics in the catheterization laboratory. The authors review contemporary invasive techniques used to confirm valve disease and guide transcatheter valve interventions. They also discuss the available data and the remaining questions on the role of invasive hemodynamics in current practice and in the future.Post-publication peer review (PPPR) relies on signed or anonymous/pseudonymous comments, and is a fundamental process that complements the weakness of traditional peer review that were not discussed by Trotter (https//doi.org/10.1016/j.profnurs.2020.10.009). Yet, should anonymous or pseudonymous entities be cited or acknowledged if their identities cannot be confirmed? This discussion abridges some of the issues underlining the fundamentals of PPPR, supplementing the gaps not covered by Trotter, and why there are ethical complexities involved with citing anonymous or pseudonymous entities. Based on COPE and ICMJE ethical guidelines, the argument against citing or acknowledging anonymous or pseudonymous entities is strong, because doing so would likely infringe upon one or more of their stated ethical regulations. Currently, no clearly stated regulations exist pertaining to this issue, so this discussion provides a spring-board for policy makers and academics to initiate a debate, and ultimately establish a clear set of publishing ethics guidelines pertaining to the acknowledgement of anonymous or pseudonymous entities.

The purpose of this review was to clarify the concept of nursing faculty bullying. Unlike published reviews that highlight incivility that involve students and faculty, the authors sought to develop the concept of nursing faculty bullying occurring in nursing schools.

The systematic eight step approach to a concept analysis developed by Walker and Avant was the framework to explore nursing faculty bullying.

A review of existing literature on nursing faculty bullying was conducted using the electronic databases of Cumulative Index for Nursing and Allied Health, PubMed, ProQuest, and Ovid. Search terms included incivility, faculty to faculty incivility, social bullying, and faculty bullying.

An operational definition and defining attributes were developed as well as a discussion of several model cases, antecedents, consequences, and empirical referents of nursing faculty bullying.

The concept of nursing faculty bullying has several critical characteristics that help clarify its meaning, including the negative interactions between nursing faculty, repetitive behavior, purposeful harmful acts, and imbalance of power.