Electrochemical oxidation-driven formation of nickel/nickel-based compounds on hollow carbon shells: Mechanistic insights and energy storage applications.

Hydrangea-like nickel/nickel-based compounds decorated hollow carbon shells were synthesized through low-temperature calcination and a facile electrochemical oxidation process. This three-dimensional hollow hierarchical structure ensures intimate contact between the electrically conductive nickel (Ni) substrate and uniformly distributed electrochemically active nickel-based compounds. This hierarchical structure offers abundant active sites and accessible pathways, maximizing energy storage, particularly during rapid charge-discharge cycles.

Single-Entity Electrochemistry of N-Doped Graphene Oxide Nanostructures for Improved Kinetics of Vanadyl Oxidation.

N-doped graphene oxides (GO) are nanomaterials of interest as building blocks for 3D electrode architectures for vanadium redox flow battery applications. N- and O-functionalities have been reported to increase charge transfer rates for vanadium redox couples. However, GO synthesis typically yields heterogeneous nanomaterials, making it challenging to understand whether the electrochemical activity of conventional GO electrodes results from a sub-population of GO entities or sub-domains.

Mass Inflation without Cauchy Horizons.

Mass inflation is a well established instability, conventionally associated to Cauchy horizons (which are also inner trapping horizons) of stationary geometries, leading to a divergent exponential buildup of energy. We show here that finite (but often large) exponential buildups of energy are present for dynamical geometries describing accreting black holes with slowly evolving inner trapping horizons, even in the absence of Cauchy horizons. The explicit evaluation of the adiabatic conditions behind these exponential buildups shows that this phenomenon is universally present for physically reasonable accreting conditions.

A Divide-and-Conquer Approach to Nanoparticle Global Optimisation Using Machine Learning.

Global optimization of the structure of atomic nanoparticles is often hampered by the presence of many funnels on the potential energy surface. While broad funnels are readily encountered and easily exploited by the search, narrow funnels are more difficult to locate and explore, presenting a problem if the global minimum is situated in such a funnel. Here, a divide-and-conquer approach is applied to overcome the issue posed by the multifunnel effect using a machine learning approach, without using knowledge of the potential energy surface.

The California collaborative network to promote data driven care and improve outcomes in early psychosis (EPI-CAL) project: rationale, background, design and methodology.

Background: A prolonged first episode of psychosis (FEP) without adequate treatment is a predictor of poor clinical, functional, and health outcomes and significant economic burden. Team-based "coordinated specialty care" (CSC) for early psychosis (EP) has established effectiveness in promoting clinical and functional recovery. However, California's CSC program implementation has been unsystematic and could benefit from standardizing its processes and data collection infrastructure.

Multimorbidity and risk of adverse outcomes in the Hertfordshire Cohort Study: does sex matter?

Aims: We examined whether admission risk increases at a certain threshold of number of systems medicated or whether any increase confers greater admission risk in either sex in a community-dwelling cohort of older persons in Hertfordshire. This study uses a longitudinal retrospective study design.

Methods: Data from 2997 men and women (aged 59-73 at baseline) were analyzed.

Biomimetic Synthesis of the Marine-Derived Thioalkaloids Dassonmycins A and B.

A biomimetic synthesis of the marine thioalkaloids dassonmycins A and B is reported. The synthesis features a chemoselective reduction of a diketopiperazine to form a 2-piperazinone, which undergoes heteroannulation with naphthoquinone to yield dassonmycin A. Dassonmycin A undergoes slow cyclization to form dassonmycin B at physiological pH, supporting a biosynthesis hypothesis that this reaction could occur in the cytosol of the bacterial host species.

Adult Sex-Ratio Bias Does Not Lead to Detectable Adaptive Offspring Sex Allocation Via Nest-Site Choice in a Turtle With Temperature-Dependent Sex Determination.

Sex-ratio theory predicts that parents can optimise their fitness by producing offspring of the rare sex, yet there is a dearth of empirical evidence for adaptive sex allocation in response to the adult sex ratio (ASR). This is concerning, as anthropogenic disruption of the sex ratios of reproductive individuals threatens to cause demographic collapse in animal populations. Species with environmental sex determination (ESD) are especially at risk but may possess the capacity to adaptively influence offspring sex via control over the developmental environment.

Letter re: The Proposed Criminalisation of LGBTQ+ Identities in Ghana: Highlighting the Psychological Health Challenges of Conflicting Values.

The introduction of Ghana's Anti-LGBTQ+ bill, aimed at criminalising LGBTQ+ identities and advocacies, has sparked widespread debate and significant controversies. In this commentary, we discussed the proposed bill and expounded upon the potential ramifications of such legislation on individual psychological health and well-being. We highlighted the consequences of the clash between differing sets of values.

Generation and capture of naphthoquinonynes: a new frontier in the development of trypanocidal quinones aryne chemistry.

The regioselective synthesis of functionalized naphthoquinones the formation and capture of naphthoquinonynes has been used to prepare trypanocidal compounds. The target compounds are functionalized on the aromatic ring, leaving the quinoidal ring intact. Using this technique, eighteen functionalized naphthoquinones were succesfull obtained, divided in two main groups: the first scope using -nucleophiles, and the second scope using pyridine -oxides, with yields up to 74%.

Invasion alters plant and mycorrhizal communities in an alpine tussock grassland.

Plant invasions are impacting alpine zones, altering key mutualisms that affect ecosystem functions. Plant-mycorrhizal associations are sensitive to invasion, but previous studies have been limited in the types of mycorrhizas examined. Consequently, little is known about how invaders that host rarer types of mycorrhizas may affect community and ecosystem properties.

Tropical teleconnections through the Amundsen Sea Low impact Antarctic toothfish recruitment within the Ross Gyre.

Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region are believed to spawn predominantly in the northern parts of the Ross Gyre during the austral winter with fluctuations in their recruitment observed. This Lagrangian modelling study attempts to explain these fluctuations and shows how sea-ice drift impacts the buoyant eggs and the overall recruitment of juveniles reaching the Amundsen shelf break. Interannual variations in the Amundsen Sea Low, linked to tropical sea surface temperatures, cause modulations in the sea-ice drift and subsequent recruitment.

Outcome Domains of Professional Doctorates in Nursing: An International Three-Phase Exploratory Study.

Aim: Professional Doctorate Programmes (PDP) in nursing continue to develop across many countries. However, there is a lack of evidence demonstrating the impact on nurses who graduate from these programmes and the outcomes they deliver. This exploratory study aims to identify graduate outcome domains that can be applied internationally to evaluate professional doctorate programmes in nursing.

Enhancing BMP-2-mediated osteogenesis with a synthetic heparan sulfate mimetic.

Bone morphogenetic protein 2 (BMP-2) is an osteoinductive protein and a potent inducers of bone formation, playing an essential role during bone fracture repair. Heparan sulfate (HS), a highly charged and linear polysaccharide, is known to interact with and enhance BMP-2 bioactivity. Despite showing potential as a potent adjuvant of the endogenous bone healing response, commercially available HS is derived from animal sources which are less desirable when considering translation into the clinic.

Understanding and Tuning the Effects of HO on Catalytic CO and CO Hydrogenation.

Catalytic CO (CO and CO) hydrogenation to valued chemicals is one of the promising approaches to address challenges in energy, environment, and climate change. HO is an inevitable side product in these reactions, where its existence and effect are often ignored. In fact, HO significantly influences the catalytic active centers, reaction mechanism, and catalytic performance, preventing us from a definitive and deep understanding on the structure-performance relationship of the authentic catalysts.

A novel antibody treatment reduces deformed wing virus loads in the western honey bee ().

Unlabelled: The deformed wing virus () (DWV) is a key driver of colony loss in the western honey bee (). Here, we demonstrate that orally delivered anti-DWV antibodies can act systemically to reduce DWV loads in naturally infected honey bees. Immunoglobulin Y (IgY) was produced in adult chickens against two DWV proteins, harvested from their eggs, and fed to bees in a sucrose solution.

Corrigendum: "Wading through the worst that humanity does to each other": New Zealand Crown prosecutors' experiences of working with potentially traumatic material in the criminal justice system.

[This corrects the article DOI: 10.3389/fpsyg.2023.