Maximising learning opportunities in handover

Handing over responsibility for patients has always been part of medical practice. Definitions emphasise transfer of responsibility to ensure patient safety and the available literature tends to follow this line (see box 1). Handover is much more than this, however. It is a key event where teams meet, have the opportunity to communicate, support each other and learn. This paper considers different ways of maximising learning opportunities in handover, with particular emphasis on the strengths and challenges of the paediatric environment. Alongside review of the best available evidence, many of the ideas discussed were generated from working with a group of 65 experienced paediatricians with particular experience and interest in medical education as part of the Royal College of Paediatrics and Child Health Paediatric Educators Programme. Formal handover has increased in importance and been embedded in practice with the transition from “on-calls” to “full-shift” rotas in an effort to comply with the European Working Time Directive1 in the United Kingdom (UK). Departments responsible for acute patient care have had to incorporate two or three handover sessions into every day to ensure patient problems and management plans are appreciated by the incoming medical team

Assessment of Dietary Behaviors, Body Composition, and Cardiovascular Disease Risk among College Club Rugby Team

International Journal of Exercise Science 8(4): 403-413, 2015. The purpose of this study was to evaluate dietary behaviors, body composition, and potential cardiovascular disease (CVD) risk factors among college club rugby team players. 15 athletes completed demographics, three 24-hour dietary recalls, body composition and blood lipid profile assessments following an overnight fast. Mean ± SD age of participants was 20 ± 1 years; weight 81 ± 16 kg; BMI 25.7 ± 3.2 kg/m2; body fat 13 ± 5%; total cholesterol 133 ± 37 mg/dl; high-density lipoprotein 49 ± 18 mg/dl; low-density lipoproteins 77 ± 26 mg/dl; triglycerides 86 ± 34 mg/dl. The results of dietary analysis indicated that carbohydrates comprise 44 ± 3% (3.2 ± 0.2 g/kg), proteins 21 ± 5% (1.5 ± 0.4 g/kg), and fats 34 ± 3% of the total calories. Mean intake of total fat and saturated fat exceeded recommendations of the Acceptable Macronutrient Distribution Range (AMDR). Recommended Dietary Allowances (RDA) were met for most of the micronutrients excluding vitamin A 557 ± 157 μg/dl (61% RDA) vitamin E 6 ± 0.5 μg/dl (40% RDA) and potassium 2267 ± 613 μg/dl (50% RDA) while mean intake for sodium 4276 ± 437 mg/dl was 285% recommended. In addition, mean intake of fiber 18 ± 5 g was 55% below that recommended. At present, most of the participants were at low risk for developing CVD. However, continuous high intake of total and saturated fat, sodium and low fiber may lead to increased risk for developing CVD

Static and Dynamic Magnetism in Underdoped Superconductor BaFe1.92_{1.92}Co0.08_{0.08}As2_2

We report neutron scattering measurements on single crystals of BaFe$_{1.92}$Co$_{0.08}$As$_2$. The magnetic Bragg peak intensity is reduced by 6 % upon cooling through T$_C$. The spin dynamics exhibit a gap of 8 meV with anisotropic three-dimensional (3d) interactions. Below T$_C$ additional intensity appears at an energy of $\sim$4.5(0.5) meV similar to previous observations of a spin resonance in other Fe-based superconductors. No further gapping of the spin excitations is observed below T$_C$ for energies down to 2 meV. These observations suggest the redistribution of spectral weight from the magnetic Bragg position to a spin resonance demonstrating the direct competition between static magnetic order and superconductivity.Comment: 4 pages, 4 figure

Optimizing infrared to near infrared upconversion quantum yield of β-NaYF₄:Er³⁺ in fluoropolymer matrix for photovoltaic devices

The present study reports for the first time the optimization of the infrared (1523 nm) to near-infrared (980 nm) upconversion quantum yield (UC-QY) of hexagonal trivalent erbium doped sodium yttrium fluoride (β-NaYF4:Er3+) in a perfluorocyclobutane (PFCB) host matrix under monochromatic excitation. Maximum internal and external UC-QYs of 8.4% ± 0.8% and 6.5% ± 0.7%, respectively, have been achieved for 1523 nm excitation of 970 ± 43 Wm−2 for an optimum Er3+ concentration of 25 mol% and a phosphor concentration of 84.9 w/w% in the matrix. These results correspond to normalized internal and external efficiencies of 0.86 ± 0.12 cm2 W−1 and 0.67 ± 0.10 cm2 W−1, respectively. These are the highest values ever reported for β-NaYF4:Er3+ under monochromatic excitation. The special characteristics of both the UC phosphor β-NaYF4:Er3+ and the PFCB matrix give rise to this outstanding property. Detailed power and time dependent luminescence measurements reveal energy transfer upconversion as the dominant UC mechanism

Intermediates of Metabolism: From Bystanders to Signalling Molecules

British Heart Foundation Fellowship FS/12/38/2964

Study of the ground state properties of LiHoxY1−xF4LiHo_xY_{1-x}F_4 using μ\muSR

$LiHo_xY_{1-x}F_4$ is an insulating system where the magnetic Ho$^{3+}$ ions have an Ising character, and interact mainly through magnetic dipolar fields. We used the muon spin relaxation technique to study the nature of the ground state for samples with x=0.25, 0.12, 0.08, 0.045 and 0.018. In contrast with some previous works, we have not found any signature of canonical spin glass behavior down to $\approx$15mK. Instead, below $\approx$300mK we observed dynamic magnetism characterized by a single correlation time with a temperature independent fluctuation rate. We observed that this low temperature fluctuation rate increases with x up to 0.08, above which it levels off. The 300mK energy scale corresponds to the Ho3+ hyperfine interaction strength, suggesting that the hyperfine interaction may be intimately involved with the spin dynamics in this system

Muon Spin Relaxation Studies of Magnetic-Field-Induced Effects in High-TcT_{c} Superconductors

Muon spin relaxation ($\mu$SR) measurements in high transverse magnetic fields ($\parallel \hat c$) revealed strong field-induced quasi-static magnetism in the underdoped and Eu doped (La,Sr)$_{2}$CuO$_{4}$ and La$_{1.875}$Ba$_{0.125}$CuO$_{4}$, existing well above $T_{c}$ and $T_{N}$. The susceptibility-counterpart of Cu spin polarization, derived from the muon spin relaxation rate, exhibits a divergent behavior towards $T \sim 25$ K. No field-induced magnetism was detected in overdoped La$_{1.81}$Sr$_{0.19}$CuO$_{4}$, optimally doped Bi2212, and Zn-doped YBa$_{2}$Cu$_{3}$O$_{7}$.Comment: 4 pages, 4 color figure