1,340 research outputs found

    Reducing the Incidence of Anaphylaxis Events in School Settings

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    Problem: Statistics show in a 2014 nationwide study that a 16% rate of anaphylaxis was reported in over five thousand schools. The anaphylactic reaction occurred between 79-83 % in classrooms and 12-15% in lunchrooms; 19% of the life-threatening reactions occurred on field trips, playgrounds, and other school events. Recent studies identified a knowledge deficit among school personnel when it comes to addressing food allergies. Context: The microsystem that will benefit from this project is part of a broader educational organization, a School District, in San Jose, Ca. The organization serves over 9000 students with diverse backgrounds, rich in ethnic and cultural diversity, with a curriculum designed to meet all the students\u27 needs. Intervention: This project\u27s current goal consists of identifying all children with food allergies, opening a communication link between the district nurses, parents, doctor, and school staff, implementing care plans for all children with food allergies, and educating all personnel involved in the process of care. Using educational resources and raising awareness among school personnel of food allergies being potentially life-threatening would decrease food allergy incidences in school settings. Results: This project is expected to increase awareness among school staff, teachers, health assistants, and other auxiliary staff members. By the current date, over 50% of the selected staff got trained regarding anaphylaxis signs and symptoms and action steps needed in case of an event. It is expected that by the end of 2020, over 70% of the selected staff will have completed the planned training. Conclusion: Creating and implementing a program to reduce the incidence of anaphylactic events within the School District improves students\u27 safety and the quality of care provided. A consistent training program has the benefits of increasing awareness among school staff related to signs and symptoms of anaphylaxis and the necessary actions that need to be taken regarding the occurrence of anaphylactic reactions in school settings

    Graphite Electrode Modified with a New Phenothiazine Derivative and with Carbon Nanotubes for NADH Electrocatalytic Oxidation

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    The electrochemical behavior of a modified electrode obtained by immobilization of single-walled carbon nanotubes onto a graphite electrode modified with a new phenothiazine derivative, bis-phenothiazin-3-yl methane (BPhM), G/BPhM-CNT, has been evaluated and compared with BPhM adsorbed on graphite electrode (G/BPhM). The G/BPhM-CNT electrode presents improved performances for NADH electrocatalytic oxidation in comparison with G/BPhM electrode, expressed by: (i) a significant increase of electrocatalytic rate constant (kobs,[NADH] 0) for NADH oxidation (856.32 L mol–1 s–1 for G/BPhM-CNT and 51.63 L mol–1 s–1 for G/BPhM, in phosphate buffer, pH 7); (ii) the obtained amperometric sensors for NADH detection present increase sensitivity (S = 6.9 mA L mol–1 for G/BPhM-CNT and S = 0.55 mA L mol–1 for G/BPhM, pH 7)

    Corrosion Behavior of Composite Coatings Obtained by Electrolytic Codeposition of Copper with Al2O3 Nanoparticles

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    Composite coatings of copper incorporating Al2O3 nanoparticles electrodeposited on carbon steel were obtained and characterized. By using electrochemical methods such as open circuit potential (ocp) measurements, polarization curves and electrochemical impedance spectroscopy, the corrosion behavior of the Al2O3-copper nanocomposite coatings was examined. The corrosion parameters determined from the polarization curves recorded in Na2SO4 solution (pH 3) indicate that the corrosion process on copper-Al2O3 composite surface is slower than on pure copper. The impedance spectra recorded at the ocp showed in all cases an increase of the polarization resistance in time, which may be explained by the development of corrosion products on the electrode surface. Using a (2RC) equivalent electrical circuit, the process parameters were estimated by non-linear regression calculations with a Simplex method. The Al2O3 particles embedded in the electroplated copper, increase the polarization resistance and decrease the corrosion rates as compared with electrodeposited pure copper. The electrochemical results were corroborated with those obtained by SEM and EDX investigations
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