This article reports the development of CuO|CuBiO photocathodes stabilized by protective layers of TiO, MgO, or NiO, with Pt or MoS nanoparticles serving as co-catalysts to facilitate H evolution. Most notably, this work demonstrates the first application of MgO as a protection/passivation layer for photocathodes in a water-splitting cell. All configurations of photocathodes were studied structurally, morphologically, and photoelectrochemically revealing that CuO|CuBiO|MgO|Pt photocathodes achieve the highest stable photocurrent densities of -200 μA cm for over 3 hours with a Faradaic efficiency of ∼90%.
View Article and Find Full Text PDFJ Prim Care Community Health
November 2024
Introduction/objectives: Obesity data is typically obtained from national population surveys, while the use of more accurate electronic medical record (EMR) data is underutilized. The objective of this study is to calculate current obesity prevalence and weight trends using EMR data and compare the results to prior survey-based obesity prevalence projections for the state.
Methods: This retrospective study analyzed Body Mass Index (BMI) from deidentified EMR data from 16,491 adult patients in urban midwestern primary care clinics between January 2017 and October 2021 for obesity prevalence and weight trajectories, stratified by age and gender.
Objective: To analyse the scope and characteristics of freely available online patient decision aids.
Methods: An international environmental scan of online decision aids, with no language restriction, was conducted by searching aids in the recent Cochrane review and 35 online sources. Aid characteristics were extracted and analysed.
Antimicrobial resistance is a global threat to human health. Therefore, efforts have been made to develop new antibacterial agents that address this critical medical issue. Gepotidacin is a novel, bactericidal, first-in-class triazaacenaphthylene antibacterial in clinical development.
View Article and Find Full Text PDFPigments extracted from ayrampo seeds of the Peruvian-native prickly pear () were used in dye-sensitized solar cells with promising efficiencies. The performance of the solar cells was then improved the addition of citric acid to stabilise the photosensitive dye, and an efficiency of 1.41% was achieved with current output remaining stable after 7 days.
View Article and Find Full Text PDFChemiresitive sensing allows the affordable and facile detection of small molecules such as HO and CO. Herein, we report a novel class of Earth-abundant post transition metal substituted Keggin polyoxometalates (POMs) for chemiresistive sensing applications, with conductivities up to 0.01 S cm under 100% CO and 65% Relative Humidity (RH).
View Article and Find Full Text PDFOrganic-inorganic hybrid halide perovskite solar cells (PSCs) have attracted substantial attention from the photovoltaic research community, with the power conversion efficiency (PCE) already exceeding 26%. Current state-of-the-art devices rely on Spiro-OMeTAD as the hole-transporting material (HTM); however, Spiro-OMeTAD is costly due to its complicated synthesis and expensive product purification, while its low conductivity ultimately limits the achievable device efficiency. In this work, we build upon our recently introduced family of low-cost amide-based small molecules and introduce a molecule (termed TPABT) that results in high conductivity values (∼10 S cm upon addition of standard ionic additives), outperforming our previous amide-based material (EDOT-Amide-TPA, ∼10 S cm) while only costing an estimated $5/g.
View Article and Find Full Text PDFWe report a push-pull BODIPY-based dye functionalised with an electronegative SF group at the position for applications in photocathodes in tandem dye-sensitized solar cells (DSSCs). The push-pull character enhances charge-transfer from the mesoporous NiO cathode surface towards the redox mediator. A Knoevenagel condensation reaction was used to introduce the carboxylic acid to anchor the dye to the oxide surface, a styryl linker which increases the conjugation in the molecule and shifts the absorption to the red.
View Article and Find Full Text PDFObjectives: To investigate the completeness of reporting of behavioral, environmental, social and system interventions (BESSI) for reducing the transmission of SARS-CoV-2 evaluated in randomized trials, to obtain missing intervention details and to document the interventions assessed.
Study Design And Setting: We assessed completeness of reporting in randomized trials of BESSI using the Template for Intervention Description and Replication (TIDieR) checklist. Investigators were contacted to provide missing intervention details and if provided, intervention descriptions were reassessed and documented according to the TIDieR items.
Environ Health Perspect
November 2022
Background: Environmental health researchers often aim to identify sources or behaviors that give rise to potentially harmful environmental exposures.
Objective: We adapted principal component pursuit (PCP)-a robust and well-established technique for dimensionality reduction in computer vision and signal processing-to identify patterns in environmental mixtures. PCP decomposes the exposure mixture into a low-rank matrix containing consistent patterns of exposure across pollutants and a sparse matrix isolating unique or extreme exposure events.
COVID-19 vaccination may be associated with change in menstrual cycle length following vaccination. We estimated covariate-adjusted differences in mean cycle length (MCL), measured in days, between pre-vaccination cycles, vaccination cycles, and post-vaccination cycles within vaccinated participants who met eligibility criteria in the Apple Women's Health Study, a longitudinal mobile-application-based cohort of people in the U.S.
View Article and Find Full Text PDFBackground: Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease. Limited evidence suggests ALS diagnosis may be associated with air pollution exposure and specifically traffic-related pollutants.
Methods: In this population-based case-control study, we used 3,937 ALS cases from the Danish National Patient Register diagnosed during 1989-2013 and matched on age, sex, year of birth, and vital status to 19,333 population-based controls free of ALS at index date.
Cochrane Database Syst Rev
March 2022
Background: Cognitive impairment is a frequent consequence of stroke and can impact on a person's ability to perform everyday activities. Occupational therapists use a range of interventions when working with people who have cognitive impairment poststroke. This is an update of a Cochrane Review published in 2010.
View Article and Find Full Text PDFEcotoxicol Environ Saf
March 2022
Background: Over 57 million people in Bangladesh have been chronically exposed to arsenic-contaminated drinking water. They also face environmental exposure to elevated levels of cadmium (Cd), manganese (Mn), and lead (Pb), all of which have been previously observed in environmental and biological samples for this population. These metals have been linked to adverse neurocognitive outcomes in adults and children, though their effects on adolescents are not yet fully characterized.
View Article and Find Full Text PDFFront Chem
December 2021
Two novel supramolecular complexes ([Ru(dceb)(bpt)Re(CO)Cl](PF)) and ([Ru(dceb)(bpt)PtI(HO)](PF)) [dceb = diethyl(2,2'-bipyridine)-4,4'-dicarboxylate, bpt = 3,5-di(pyridine-2-yl)-1,2,4-triazolate] were synthesized as new catalysts for photocatalytic CO reduction and H evolution, respectively. The influence of the catalytic metal for successful catalysis in solution and on a NiO semiconductor was examined. IR-active handles in the form of carbonyl groups on the peripheral ligand on the photosensitiser were used to study the excited states populated, as well as the one-electron reduced intermediate species using infrared and UV-Vis spectroelectrochemistry, and time resolved infrared spectroscopy.
View Article and Find Full Text PDFDye-sensitized solar cells (DSCs) are celebrating their 30th birthday and they are attracting a wealth of research efforts aimed at unleashing their full potential. In recent years, DSCs and dye-sensitized photoelectrochemical cells (DSPECs) have experienced a renaissance as the best technology for several niche applications that take advantage of DSCs' unique combination of properties: at low cost, they are composed of non-toxic materials, are colorful, transparent, and very efficient in low light conditions. This review summarizes the advancements in the field over the last decade, encompassing all aspects of the DSC technology: theoretical studies, characterization techniques, materials, applications as solar cells and as drivers for the synthesis of solar fuels, and commercialization efforts from various companies.
View Article and Find Full Text PDFPurpose: Crizotinib, a potent oral tyrosine kinase inhibitor, was evaluated in combination with dasatinib in a phase 1 trial (NCT01644773) in children with progressive or recurrent high-grade and diffuse intrinsic pontine gliomas (HGG and DIPG). This study aimed to characterize the pharmacokinetics of crizotinib in this population and identify significant covariates.
Methods: Patients (N = 36, age range 2.
Background: Emicizumab, a bispecific antibody factor VIII mimetic, is approved for prophylaxis in hemophilia, and has different risks and side effects compared to factor VIII products.
Objective: To better understand the early impact of emicizumab on our patients at the University of Colorado Hemophilia and Thrombosis Center (UCHTC), we evaluated adverse reactions, factor prophylaxis overlap, and bleeding rates after starting emicizumab through a quality improvement project.
Patients/methods: A retrospective chart review and structured phone interview were conducted from June to September 2019 for all patients who had started emicizumab at the UCHTC.
We present a thorough soft x-ray photoelectron spectroscopy (XPS) study of a mesoporous titanium dioxide electrode sensitized with the dye 4-(diphenylamino)phenylcyanoacrylic acid, referred to as "L0." Supported by calculations, the suite of XPS, x-ray absorption spectroscopy, and resonant photoelectron spectroscopy allows us to examine bonding interactions between the dye and the surface and the frontier electronic structure at the molecule-oxide interface. While placing these measurements in the context of existing literature, this paper is intended as a useful reference for further studies of more complex triphenylamine based sensitizers.
View Article and Find Full Text PDFObjective: To assess Australian physiotherapists' knowledge about, attitudes towards, and self-reported use of shared decision making, as well as perceived barriers to its implementation in practice.
Methods: Physiotherapists registered for a national Australian physiotherapy conference were invited via email and the conference app to complete a self-administered online questionnaire about shared decision making, including: a) knowledge, b) attitude to and reported approach in practice, c) behaviours used, d) barriers, e) previous training and future training interest. Responses were analysed descriptively and open-ended questions synthesised narratively.