ps to regional schools

Enhanced Ps-Ps interactions due to quantum confinement.

Slow positrons implanted into a porous silica film may efficiently form positronium (Ps) atoms that diffuse through a network of interconnected pores. At high Ps densities, the long lifetime of ortho-positronium atoms is reduced due to Ps-Ps spin dependent interactions at a rate that implies an effective free-space scattering cross section, σ(e) = (3.4 ± 0.5) × 10(-14) cm(-2), at least 25 times...

From PS{splines to NURPS

Student access to competitive foods in elementary schools: trends over time and regional differences.

OBJECTIVE To examine the availability of competitive foods in elementary schools. DESIGN Nationally representative mail-back survey. SETTING United States public and private elementary schools during the 2006-2007, 2007-2008, 2008-2009, and 2009-2010 school years. PARTICIPANTS Survey respondents at 2647 public and 1205 private elementary schools. MAIN OUTCOME MEASURE The availability of...

Fast food restaurant locations according to socioeconomic disadvantage, urban–regional locality, and schools within Victoria, Australia

Features of the built environment provide opportunities to engage in both healthy and unhealthy behaviours. Access to a high number of fast food restaurants may encourage greater consumption of fast food products. The distribution of fast food restaurants at a state-level has not previously been reported in Australia. Using the location of 537 fast food restaurants from four major chains (McDon...

Administration of DHA-PS to aged mice was suitable for increasing hippocampal PS and DHA ratio.

Docosahexaenoic acid (DHA) and phosphatidylserine (PS) are major components of the brain and play important roles functionally and structurally. Aging is associated with impairments in biological functions. According to the results of animal tests it has been shown that the loss in brain PC, PS and DHA due to aging leads to a variety of nervous deficits. In the present study, young mice and age...