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The method described in this study could be an additional tool for checking the operation of food safety systems in eating out establishments.While the Covid-19 pandemic has increased the number of food insecure households in the United States (US), it is unclear how it has affected college student food security status. College students are ineligible for many Covid-19-related economic relief programs and may find it even more difficult to cope during the pandemic. Therefore, the purpose of this study was to identify and describe the prevalence of food insecurity at a public university before and after the onset of Covid-19 as well as factors associated with any change in food security. Researchers administered a cross-sectional, non-probability survey to college students (n = 3206) that assessed food security status prior to and after the onset of the Covid-19 pandemic, as well as questions related to various sociodemographic characteristics. Data were analyzed using descriptive statistics. Thirty-eight percent of students experienced a change in food security as a result of the pandemic, with 59.6% becoming less food secure, and 40.4% becoming more food secure. Characteristics that were associated with changes in food security included changes in housing and employment status as a result of the pandemic. These findings suggest that the pandemic led to changes in food security among college students, and that economic relief efforts should include college students, who are disproportionately affected by food insecurity.This study aimed to evaluate the potential efficacy and safety of the amikacin dosage proposed by the main guidelines and to develop an interactive nomogram, especially focused on the potential impact of albumin on initial dosage recommendation. The probability of target attainment (PTA) for each of the different dosing recommendations was calculated through stochastic simulations based on pharmacokinetic/pharmacodynamic (PKPD) criteria. Large efficacy and safety differences were observed for the evaluated amikacin dosing guidelines together with a significant impact of albumin concentrations on efficacy and safety. For all recommended dosages evaluated, efficacy and safety criteria of amikacin dosage proposed were not achieved simultaneously in most of the clinical scenarios evaluated. Furthermore, a significant impact of albumin was identified The higher is the albumin, (i) the higher will be the PTA for maximum concentration/minimum inhibitory concentration (Cmax/MIC), (ii) the lower will be the PTA for the time period with drug concentration exceeding MIC (T>MIC) and (iii) the lower will be the PTA for toxicity (minimum concentration). Thus, accounting for albumin effect might be of interest for future amikacin dosing guidelines updates. In addition, AMKnom, an amikacin nomogram builder based on PKPD criteria, has been developed and is freely available to help evaluating dosing recommendations.Persistent hypoxia is a main clinical feature of chronic wounds. Intriguingly, oxygen-loaded nanodroplets (OLNDs), filled with oxygen-solving 2H,3H-decafluoropentane and shelled with polysaccharides, have been proposed as a promising tool to counteract hypoxia by releasing a clinically relevant oxygen amount in a time-sustained manner. Here, four different types of chitosan (low or medium weight (LW or MW), glycol-(G-), and methylglycol-(MG-) chitosan) were compared as candidate biopolymers for shell manufacturing. The aim of the work was to design OLND formulations with optimized physico-chemical characteristics, efficacy in oxygen release, and biocompatibility. All OLND formulations displayed spherical morphology, cationic surfaces, ≤500 nm diameters (with LW chitosan-shelled OLNDs being the smallest), high stability, good oxygen encapsulation efficiency, and prolonged oxygen release kinetics. Upon cellular internalization, LW, MW, and G-chitosan-shelled nanodroplets did not significantly affect the viability, health, or metabolic activity of human keratinocytes (HaCaT cell line). On the contrary, MG-chitosan-shelled nanodroplets showed very poor biocompatibility. Combining the physico-chemical and the biological results obtained, LW chitosan emerges as the best candidate biopolymer for future OLND application as a skin device to treat chronic wounds.Mental-health-related presentations account for a considerable proportion of the paramedic's workload in prehospital care. This cross-sectional study aimed to examine the perceived confidence and preparedness of paramedics in Australian metropolitan and rural areas to manage mental-health-related presentations. Overall, 1140 paramedics were surveyed. Pearson chi-square and Fisher exact tests were used to compare categorical variables by sex and location of practice; continuous variables were compared using the non-parametric Mann-Whitney and Kruskal-Wallis tests. Perceived confidence and preparedness were each modelled in multivariable ordinal regressions. Female paramedics were younger with higher qualifications but were less experienced than their male counterparts. Compared to paramedics working in metropolitan regions, those working in rural and regional areas were generally older with fewer qualifications and were significantly less confident and less prepared to manage mental health presentations (p = 0.001). Compared to male paramedics, females were less confident (p = 0.003), although equally prepared (p = 0.1) to manage mental health presentations. These results suggest that higher qualifications from the tertiary sector may not be adequately preparing paramedics to manage mental health presentations, which signifies a disparity between education provided and workforce preparedness. Further work is required to address the education and training requirements of paramedics in regional and rural areas to increase confidence and preparedness in managing mental health presentations.Coronavirus disease-19 (COVID-19) pandemic, caused by the novel SARS-CoV-2 virus, continues to be a global threat. IMT1B datasheet The number of cases and deaths will remain escalating due to the lack of effective therapeutic agents. Several studies have established the importance of the viral main protease (Mpro) in the replication of SARS-CoV-2 which makes it an attractive target for antiviral drug development, including pharmaceutical repurposing and other medicinal chemistry approaches. Identification of natural products with considerable inhibitory potential against SARS-CoV-2 could be beneficial as a rapid and potent alternative with drug-likeness by comparison to de novo antiviral drug discovery approaches. Thereof, we carried out the structure-based screening of natural products from Echinacea-angustifolia, commonly used to prevent cold and other microbial respiratory infections, targeting SARS-CoV-2 Mpro. Four natural products namely, Echinacoside, Quercetagetin 7-glucoside, Levan N, Inulin from chicory, and 1,3-Dicaffeoylquinic acid, revealed significant docking energy (>-10 kcal/mol) in the SARS-CoV-2 Mpro catalytic pocket via substantial intermolecular contacts formation against co-crystallized ligand ( less then -4 kcal/mol).IMT1B datasheet