The Effects of an Evidence-based Food Allergy Management Plan to Keep Children with Food Allergies Safe at School

The prevalence of food allergies in children has increased 18% between 1997 and 2007 (CDC, 2013). Furthermore, 84% of food allergic children will experience a reaction at school (Powers, Bergren, & Finnegan, 2007). An exposure in a sensitive child may progress quickly into potentially life threatening symptoms and death if not treated. The purpose of this evidence based practice (EBP) project was to determine if implementation of a food allergy management policy in a school setting reduced overall incidence rates of food allergy reactions in school children and to examine compliance to policy guidelines. The project encompassed implementation of a revised food allergy policy based on best practice guidelines at a local charter school in northwest Indiana. Best practice recommendations include avoidance, a personalized emergency care plan (ECP), and staff education. A 60-minute educational session for staff members and volunteers was provided reviewing the best practice policy and demonstration of two common epinephrine auto-injectors. Independent t tests were conducted to compare numbers of food allergy exposures and incidence of reactions from Spring 2014 (pre policy implementation) to Fall 2014 (post policy implementation). Analyses revealed there were no significant differences between groups. Secondary analyses examined policy compliance via chi-square test of independence and significant interactions were found. An increase in food allergic children having medications consistently traveling with them for use in emergency situations occurred post policy implementation. Statistically, policy implementation did not result in a significant difference in incidence rates of food allergy reactions from the pre policy phase to the post policy phase but did improve compliance with the policy. The findings support the overall need for a policy addressing food allergies within school systems

Supersonic aeroelastic instability results for a NASP-like wing model

An experimental study and an analytical study have been conducted to examine static divergence for hypersonic-vehicle wing models at supersonic conditions. A supersonic test in the Langley Unitary Plan Wind Tunnel facility was conducted for two wind-tunnel models. These models were nearly identical with the exception of airfoil shape. One model had a four-percent maximum thickness airfoil and the other model had an eight-percent maximum thickness airfoil. The wing models had low-aspect ratios and highly swept leading edges. The all-movable wing models were supported by a single-pivot mechanism along the wing root. For both of the wind-tunnel models, configuration changes could be made in the wing-pivot location along the wing root and in the wing-pivot pitch stiffness. Three divergence conditions were measured for the four-percent thick airfoil model in the Mach number range of 2.6 to 3.6 and one divergence condition was measured for the eight-percent thick airfoil model at a Mach number of 2.9. Analytical divergence calculations were made for comparison with experimental results and to evaluate the parametric effects of wing-pivot stiffness, wing-pivot location, and airfoil thickness variations. These analyses showed that decreasing airfoil thickness, moving the wing-pivot location upstream, or increasing the pitch-pivot stiffness have the beneficial effect of increasing the divergence dynamic pressures. The calculations predicted the trend of experimental divergence dynamic pressure with Mach number accurately; however, the calculations were approximately 25 percent conservative with respect to dynamic pressure

Conductivity landscape of highly oriented pyrolytic graphite surface containing ribbons and edges

We present an extensive study on electrical spectroscopy of graphene ribbons and edges of highly oriented pyrolytic graphite (HOPG) using atomic force microscope (AFM). We have addressed in the present study two main issues, (1) How does the electrical property of the graphite (graphene) sheet change when the graphite layer is displaced by shear forces? and (2) How does the electrical property of the graphite sheet change across a step edge? While addressing these two issues we observed, (1) variation of conductance among the graphite ribbons on the surface of HOPG. The top layer always exhibits more conductance than the lower layers, (2) two different monolayer ribbons on the same sheet of graphite shows different conductance, (3) certain ribbon/sheet edges show sharp rise in current, (4) certain ribbons/sheets on the same edge shows both presence and absense of the sharp rise in the current, (5) some lower layers at the interface near a step edge shows a strange dip in the current/conductance (depletion of charge). We discuss possible reasons for such rich conducting landscape on the surface of graphite.Comment: 13 pages, 9 figures. For better quality figures please contact autho

Continuation of multi-Member research on the Dissostichus spp. exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia (notification ID 98422, 98423), France (94903, 94904), Japan (94886, 94887), Republic of Korea (94889, 94890) and Spain (94835)

Exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions 58.4.1 and 58.4.2) began in 2003. Robust stock assessments and catch limits according to CCAMLR decision rules remain to be determined for these Divisions. WG-FSA-16/29 outlines the first multi-member toothfish exploratory fishery research plan for East Antarctica, including research objectives, methods and milestones in accordance with ANNEX 24-01/A. In 2016, the Scientific Committee agreed that the research plan was appropriate to achieve its objectives (SC-CAMLR-XXXV, para. 3.244). We present here a proposal for the continuation of the research plan as set out in WG-FSA-16/29. All significant changes to the plan are outlined in Section A. A summary of data collection in 2016/17 (Section B), and issues arising from the 2016/17 season (Section C) are also provide

Finite temperature bosonization

Finite temperature properties of a non-Fermi liquid system is one of the most challenging probelms in current understanding of strongly correlated electron systems. The paradigmatic arena for studying non-Fermi liquids is in one dimension, where the concept of a Luttinger liquid has arisen. The existence of a critical point at zero temperature in one dimensional systems, and the fact that experiments are all undertaken at finite temperature, implies a need for these one dimensional systems to be examined at finite temperature. Accordingly, we extended the well-known bosonization method of one dimensional electron systems to finite temperatures. We have used this new bosonization method to calculate finite temperature asymptotic correlation functions for linear fermions, the Tomonaga-Luttinger model, and the Hubbard model.Comment: REVTex, 48 page