The accumulation of plastic waste in the environment has prompted the development of new chemical recycling technologies. A recently reported approach employed homogeneous organometallic catalysts for tandem dehydrogenation and olefin cross metathesis to depolymerize polyethylene (PE) feedstocks to a mixture of alkane products. Here, we build on that prior work by developing a fully heterogeneous catalyst system using a physical mixture of SnPt/γ-AlO and ReO/γ-AlO.
View Article and Find Full Text PDFA new dihydrophenanthrene derivative namely 9,10-dihydro-5-hydroxy-2, 3,6-trimethoxyphenanthrene-1,4-dione () was isolated from commercial cannabis product together with 4,5-dihydroxy-2,3,6-trimethoxy-9,10-dihydrophenanthrene (), 4-hydroxy-2,3,6,7-tetramethoxy-9,10-dihydrophenanthrene (), combretastatin B-2 () and isocannbispiradienone (). Structure elucidation of the isolated compounds were done based on the interpretation of the mass spectrometry (MS) and nuclear magnetic resonance (NMR) data. New dihydrophenanthrene derivative () was tested for its effect on zebrafish larval behaviour.
View Article and Find Full Text PDFThere is increasing recognition that environmental nano-biological interactions in model species, and the resulting effects on progeny, are of paramount importance for nanomaterial (NM) risk assessment. In this work, Daphnia magna F0 mothers were exposed to a range of silver and titanium dioxide NMs. The key biological life history traits (survival, growth and reproduction) of the F1 intergenerations, at the first (F1B1), third (F1B3) and fifth (F1B5) broods, were investigated.
View Article and Find Full Text PDFThe movement away from mammalian testing of potential toxicants and new chemical entities has primarily led to cell line testing and protein-based assays. However, these assays may not yet be sufficient to properly characterize the toxic potential of a chemical. The zebrafish embryo model is widely recognized as a potential new approach method for chemical testing that may provide a bridge between cell and protein-based assays and mammalian testing.
View Article and Find Full Text PDFBackground: With 50% of Australians having chronic disease, health consumer views are an important barometer of the 'health' of the healthcare system for system improvement and sustainability.
Aims: To describe the views of Australian health consumers with and without chronic conditions when accessing healthcare.
Methods: A survey of a representative sample of 1024 Australians aged over 18 years, distributed electronically and incorporating standardised questions and questions co-designed with consumers.
Background: Location-based augmented reality (AR) games, such as Pokémon GO and Harry Potter: Wizards Unite, have been shown to have a beneficial impact on the physical activity, social connectedness, and mental health of their players. In March 2020, global social distancing measures related to the COVID-19 pandemic prompted the AR games developer Niantic Inc to implement several changes to ensure continued player engagement with Pokémon GO and Harry Potter: Wizards Unite. We sought to examine how the physical and mental well-being of players of these games were affected during the unprecedented COVID-19 restriction period as well as how their video game engagement was affected.
View Article and Find Full Text PDFBackground: Broken windows theory (BWT) proposes that visible signs of crime, disorder and anti-social behaviour - however minor - lead to further levels of crime, disorder and anti-social behaviour. While we acknowledge divisive and controversial policy developments that were based on BWT, theories of neighbourhood disorder have recently been proposed to have utility in healthcare, emphasising the potential negative effects of disorder on staff and patients, as well as the potential role of collective efficacy in mediating its effects. The aim of this study was to empirically examine the relationship between disorder, collective efficacy and outcome measures in hospital settings.
View Article and Find Full Text PDFBackground: While individual countries have gained considerable knowledge and experience in coronavirus disease of 2019 (COVID-19) management, an international, comparative perspective is lacking, particularly regarding the measures taken by different countries to tackle the pandemic. This paper elicits the views of health system staff, tapping into their personal expertise on how the pandemic was initially handled.
Methods: From May to July 2020, we conducted a cross-sectional, online, purpose-designed survey comprising 70 items.
Background: The views and experiences of the Australian public are an important barometer of the health system. This study provides key findings about the changing views held by Australians over time regarding their individual experiences and perceptions of the overall performance of the health system.
Methods: A population-based online survey was conducted in 2018 (N = 1024).
We report four draft genome sequences related to the genera and , recovered from surfaces associated with human interaction, and , recovered from an aquatic environment. This study was part of an undergraduate microbial bioinformatics course at the State University of New York at Geneseo.
View Article and Find Full Text PDFIntroduction: The ability to utilize the electronic health record (EHR) without compromising the doctor-patient relationship (DPR) is an essential skill of all physicians and trainees, yet little time is spent on educating or assessing learners on needed techniques. To address this gap, we developed a conventional OSCE station coupled with a simulated patient chart within the Epic program in order to assess our students' skills utilizing the EHR during a patient encounter.
Methods: Of third-year medical students, 119 were given full access to the patient's simulated chart 24 hours in advance of their OSCE to review clinical data.
Objectives: Controlled reoxygenation on starting cardiopulmonary bypass (CPB) rather than hyperoxic CPB may confer clinical advantages during surgery for congenital cyanotic heart disease.
Methods: A single-centre, randomized controlled trial was carried out to compare the effectiveness of controlled reoxygenation (normoxia) versus hyperoxic CPB in children with congenital cyanotic heart disease undergoing open-heart surgery (Oxic-2). The co-primary clinical outcomes were duration of inotropic support, intubation time and postoperative intensive care unit (ICU) and hospital stay.
Nightmares are intensely negative dreams that awaken the dreamer. Frequent nightmares are thought to reflect an executive deficit in regulating arousal. Within a diathesis-stress framework, this arousal is specific to negative contexts, though a differential susceptibility framework predicts elevated arousal in response to both negative and positive contexts.
View Article and Find Full Text PDFBackground: Right-sided primary tumor location is associated with worse prognosis in metastatic colon cancer, but the effect of sidedness on recurrence and prognosis for non-metastatic disease is less understood. The purpose of this study was to examine the relationship between sidedness, recurrence, and survival among patients with localized colon cancer.
Patients And Methods: Consecutive patients who underwent curative resection of colon cancer (2006-2013) were identified from a prospective database and retrospectively analyzed.
Background: The health, social and economic consequences of the severe acute respiratory syndrome coronavirus (SARS-CoV-2, henceforth COVID-19) pandemic have loomed large as every national government made decisions about how to respond. The 40 Health Systems, COVID-19 (40HS, C-19) study aimed to investigate relationships between governments' capacity to respond (CTR), their response stringency, scope of COVID-19 testing and COVID-19 outcomes.
Methods: Data over March and April 2020 were extracted for 40 national health systems on prepandemic government CTR (Global Competitiveness Index), stringency measures (Oxford COVID-19 Government Response Tracker Stringency Index), approach to COVID-19 testing and COVID-19 cases and deaths (Our-World-in-Data).
Background: Is national healthcare performance associated with country-level characteristics, and if so what are the implications for international health policy?
Methods And Findings: We compared Hofstede's six cultural dimensions against relative health systems performance of 35 countries. Hierarchical cluster analysis identified best-matched groupings of countries. Performance was measured by the Organisation for Economic Co-operation and Development's (OECD's) Health at a Glance indicators data framework (five dimensions with 57 indicators) and the United Nations' (UNs') Sustainability Development Goals (SDG) data set (15 indicators).
Background: Proportionate female representation in health research is necessary for scientific rigor and health equity. We aimed to assess the representation of women in clinical trials leading to U.S.
View Article and Find Full Text PDFFlu remains a prevalent public health issue and the flu vaccine uptake remains low. This study examined the behavioral consequences of first- and second-level agenda setting by testing the effects of exposure to flu-related news coverage and different frames on flu vaccine uptake, while controlling for confounding sociodemographic factors, utilizing computational methods. Findings suggested that the media effects on children and adult influenza vaccine uptake differed.
View Article and Find Full Text PDFBackground: Diet plays a major role in cardiovascular disease (CVD) risk.
Objectives: To determine the effectiveness of a Mediterranean-style diet for the primary and secondary prevention of CVD.
Methods: We searched for randomised controlled trials (RCTs) of Mediterranean-style diets in healthy adults and those at increased risk of CVD (primary prevention) and with established CVD (secondary prevention).
Chemoprevention trials for prostate cancer by androgen receptor or androgen synthesis inhibition have proven ineffective. Recently, it has been demonstrated that the histone methlytransferase, EZH2 is deregulated in mouse and human high-grade prostatic intraepithelial neoplasia (HG-PIN). Using preclinical mouse and human models of prostate cancer, we demonstrate that genetic and chemical disruption of EZH2 expression and catalytic activity reversed the HG-PIN phenotype.
View Article and Find Full Text PDFWe report a rare case of disseminated herpes simplex virus (HSV) infection in an extremely preterm neonate. Herpes Simplex Virus-2 (HSV-2) is the leading cause of genital ulcer disease in adults and is the most common cause of neonatal herpes, a rare infection associated with long-term neurologic impairment and high mortality. HSV-2 can be transmitted perinatally via direct mucosal or skin contact.
View Article and Find Full Text PDFObjective: Organisational change in hospitals is a frequent, seemingly inevitable occurrence. A critical precursor to successful organisational change is change readiness. This paper presents the adaptation of a self-report measure of change readiness for hospital staff, examines its reliability and validity, and evaluates the relationship between hospital change readiness (HCR) and staff well-being.
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