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The particular adsorption-desorption traits along with degradation kinetics associated with ceftiofur in various gardening earth.
Background The arrival of new residents brings challenges for residency programs and residents. Many residency programs conduct orientation sessions to help transition rising supervisory residents into their new roles, but no evaluation of their impact on residents' emotional well-being has been performed.Objective This study assesses the impact of a half-day orientation retreat on rising internal medicine post-graduate year (PGY) 2 residents' emotions toward PGY2 year and their self-confidence in fulfilling the supervisory resident role.Design A survey was administered to a class of rising supervisory residents immediately before and after an orientation retreat in May 2017. The survey provided participants an open-ended prompt to describe their emotions toward PGY2 year and a 5-point Likert scale to rate their confidence in fulfilling supervisory resident roles. Differences were assessed using McNemar's exact and Wilcoxon signed-rank tests, respectively.Results Forty-four of 50 (88%) eligible participants completed pre- and post-intervention Likert scales and 40 of 50 (80%) eligible participants completed corresponding emotion sections. Pre-intervention the most common emotions were anxiety (n = 33, 82.5%) and excitement (n = 32, 80.0%). Post-intervention, participants' fear was reduced (45.0% vs 12.0%; p less then 0.001). Participants reported greater confidence that internship prepared them for PGY2 year and understanding of triaging and admitting principles (agree or strongly agree from 65.9% to 84.0% and from 25.0% to 68.2%, respectively; p less then 0.005 for improvement by Wilcoxon signed-rank for both).Conclusions Orientation retreats may be an effective way to reduce fear and demystify the supervisory resident role.Objectives The purpose of the study is to examine the relationships between safety behaviours (safety compliance and safety participation), their determinants (safety motivation and knowledge of safety), and their antecedent (safety training) affecting employee safety productivity, an economic benefit of OHS.Methods The study was carried out with the employees participating in the basic OHS training, which is mandatory every two years for all the personnel due to the related legal obligation. The data required for the research purpose was collected by surveying 453 employees. The collected data were then tested using the methods of exploratory factor analysis (EFA) and confirmatory factor analysis (CFA).Results The findings of the analyses showed that safety training, safety knowledge, safety motivation and safety compliance affect the improvement of employee safety productivity, one of the economic benefits of OHS. The study also suggested that safety participation does not influence the improvement of employee productivity. Furthermore, it has brought about a new scale concerning employee safety productivity to the safety literature.Conclusion It is suggested for organisational managers wishing to increase employee safety productivity to focus particularly on training regarding the safety knowledge, skills, motivation, and compliance of employees.This paper presents the photocatalysis, adsorption, and photolysis of C.I. Reactive Blue 21 dye using synthesized zinc oxide nanoparticles. The density, mean particle diameter, surface area, and porosity of the catalyst were 5550 kg/m3, 1.19 × 10-7, 16,830 m2/kg, and 0.08, respectively. The impact of catalyst mass per volume of solution (0.2-1.0 kg/m3) was experimentally investigated in terms of the percentage of dye degradation. Due to the small catalyst porosity, adsorption contributed little to overall degradation. However, the photolysis of the dye was around 12.5%, which occurred predominantly between 0 and 5 min. In the second part of the present study, the photocatalytic degradation of C.I. Reactive Blue 21 was modelled mathematically based on the mass conservation law in the solution and catalyst. The model had two adjustable variables the convection mass transfer coefficient and the photocatalytic reaction rate constant. The model was solved numerically using the finite difference method and was validated with the experimental data. The validated model was employed to examine the impact of catalyst size and initial pollutant concentration on the photocatalytic degradation.Along with an increased incidence of cardiovascular diseases, there is a strong need for small-diameter vascular grafts. Silk has been investigated as a biomaterial to develop such grafts thanks to different processing options. Endothelialization was shown to be extremely important to ensure graft patency and there is ongoing research on the development and behavior of endothelial cells on vascular tissue-engineered scaffolds. This article reviews the endothelialization of silk-based scaffolds processed throughout the years as silk non-woven nets, films, gel spun, electrospun, or woven scaffolds. Encouraging results were reported with these scaffolds both in vitro and in vivo when implanted in small- to middle-sized animals. The use of coatings and heparin or sulfur to enhance, respectively, cell adhesion and scaffold hemocompatibility is further presented. ACY-775 Bioreactors also showed their interest to improve cell adhesion and thus promoting in vitro pre-endothelialization of grafts even though they are still not systematically used. Finally, the importance of the animal models used to study the right mechanism of endothelialization is discussed.This study aimed at investigating the treatment of landfill leachate using the aerobic granular sludge process in a lab-scale sequential batch reactor (SBR-AGS). The leachate from a giant sanitary landfill localized in the State of São Paulo (Brazil) exhibited high concentration of organic matter (COD 5,300 ± 78 mg L-1) and total nitrogen (TKN 2,630 ± 355 mg L-1). Comparatively, the leachate was added to wastewater in three different volumetric ratios (5, 10 and 20%) and the mixtures were characterized over treatment. The results indicated that there were no significant changes in the behaviour of the biological process even at the highest leachate ratio. The granulation of the aerobic sludge occurred after 90 days of operation and the granules had a diameter of 485-1585 μm. SBR-AGS exhibited removal efficiency of 87-89% for organic matter and at least 98% for total nitrogen, regardless of the leachate ratio. The treated effluent that received 20% of leachate showed 2.7 mg L-1 ammonia and 1.1 mg L-1 nitrate. This study shows that SBR-AGS was able to form large granules, thus promoting a simultaneous nitrification and denitrification (SND) process.
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