Searching for squeezed particle-antiparticle correlations in high energy heavy ion collisions

Squeezed correlations of particle-antiparticle pairs were predicted to exist if the hadron masses were modified in the hot and dense medium formed in high energy heavy ion collisions. Although well-established theoretically, they have not yet been observed experimentally. We suggest here a clear method to search for such signal, by analyzing the squeezed correlation functions in terms of measurable quantities. We illustrate this suggestion for simulated phi-phi pairs at RHIC energies.Comment: Revised extended text, one plot added, one figure was moved to another page in the paper (total of 3 figures, Fig. (2) having parts a, b and c); added acknowledgmen

Modelling the measured local time evolution of strongly nonlinear heat pulses in the Large Helical Device

In some magnetically confined plasmas, an applied pulse of rapid edge cooling can trigger either a positive or negative excursion in the core electron temperature from its steady state value. We present a new model which captures the time evolution of the transient, non-diffusive local dynamics in the core plasma. We show quantitative agreement between this model and recent spatially localized measurements (Inagaki et al 2010 Plasma Phys. Control. Fusion 52 075002) of the local time-evolving temperature pulse in cold pulse propagation experiments in the Large Helical Device

BENEFIT-COST ANALYSIS IN U.S. ENVIRONMENTAL REGULATORY DECISIONS

As the number and cost of environmental regulations have increased over the last thirty years, the regulated community, taxpayers, and policy makers have begun to demand that the benefits of regulations justify their costs. The use of benefit-cost analysis as an integral part of developing new regulations is increasing and the demands and expectations being placed on the method have expanded. Although benefit-cost analysis is expected to play an even greater role in environmental decision making in the years ahead, questions remain concerning whether benefit-cost analysis can meet these expectations. This paper explores the role of benefit-cost analysis in US public investment and environmental decision making and examines how benefit-cost methods are responding to new analytic demands. It reviews the US experience with benefit-cost analysis at the Federal and State levels of government and discusses several applications to environmental regulations, illustrating how such analysis can contribute to decision-making as well as pointing out some of the method's pitfalls. The paper also discusses how several important (and sometimes controversial) methodological issues-including intergenerational equity, the distribution of benefits and costs, uncertainty and risk, and the measurement of the value of non-market goods and services-might be addressed practically as benefit-cost analysis is further extended into environmental policy and regulation. Finally, the paper concludes with recommendations for the future use of benefit-cost analysis in environmental decision making.Environmental Economics and Policy,

Men Are More Likely than Women to Slow in the Marathon

Studies on nonelite distance runners suggest that men are more likely than women to slow their pace in a marathon. Purpose: This study determined the reliability of the sex difference in pacing across many marathons and after adjusting women\u27s performances by 12% to address men\u27s greater maximal oxygen uptake and also incorporating information on racing experience. Methods: Data were acquired from 14 US marathons in 2011 and encompassed 91,929 performances. For 2929 runners, we obtained experience data from a race-aggregating Web site. We operationalized pace maintenance as the percentage change in pace observed in the second half of the marathon relative to the first half. Pace maintenance was analyzed as a continuous variable and as two categorical variables, as follows: maintain the pace, defined as slowing=30%. Results: The mean change in pace was 15.6% and 11.7% for men and women, respectively (P \u3c 0.0001). This sex difference was significant for all 14 marathons. The odds for women were 1.46 (95% confidence interval, 1.41–1.50; P \u3c 0.0001) times higher than men to maintain the pace and 0.36 (95% confidence interval, 0.34–0.38; P \u3c 0.0001) times that of men to exhibit marked slowing. Slower finishing times were associated with greater slowing, especially in men (interaction, P \u3c 0.0001). However, the sex difference in pacing occurred across age and finishing time groups. Making the 12% adjustment to women’s performances lessened the magnitude of the sex difference in pacing but not its occurrence. Although greater experience was associated with less slowing, controlling for the experience variables did not eliminate the sex difference in pacing. Conclusions: The sex difference in pacing is robust. It may reflect sex differences in physiology, decision making, or both

William Remshart: A Biographical Sketch

William Remshart (b. February 7, 1805, d. February 24, 1878) was a merchant who later became involved with real estate. He had the residences of 102-112 West Jones Street (also called Remshart Row) built. He was active in business and community affairs. William Remshart was first married to Julia E. Cooper on January 17, 1833 and they had nine children. After the death of Julia, William married Hrs. Rebecca C. Oliver on July 18, 1866. He died February 24, 1878 and was buried in Laurel Grove Cemetery, Savannah, Georgia.https://digitalcommons.georgiasouthern.edu/sav-bios-lane/1148/thumbnail.jp

Letter to Margarette Dye regarding SEAALL membership, March 19, 1986

A letter from Sandra O\u27Connor to Margarette Dye providing an updated address for the SEAALL membership list

Supply Line: The Canadian War Museum’s Second World War Discovery Box

Abstract : How do you bring the museum to the classroom? In 2014, the Canadian War Museum introduced the Supply Line program to mark the centenary of the First World War, circulating Discovery Boxes of real and reproduced objects from the Great War to schools across the country, reaching Canadian students in every province and territory. With the arrival of the 75th anniversary of the end of the Second World War, Museum staff, in consultation with teachers, added new Second World War Discovery Boxes that are proving as successful as the first program. This article discusses the development process behind the Second World War Supply Line kit. Comment transporter le musée dans la salle de classe? En 2014, le Musée canadien de la guerre a lancé la programme Ligne de ravitaillement pour marquer le centenaire de la Première Guerre mondiale, en faisant circuler des Boîtes de découverte qui contiennent des artefacts authentiques et des reproductions liés à la guerre dans les écoles du pays. Elèves dans chaque province et territoire du Canada ont profité du programme. À l’occasion du 75e anniversaire de la fin de la Seconde Guerre mondiale, le personnel du musée, en consultation avec des enseignants, a ajouté de nouvelles boîtes de découverte avec artefacts de la Seconde Guerre mondiale, et qui ont autant du succès que celles du premier programme. Cet article traite du processus derrière la mise au point de la trousse de Ligne de ravitaillement de la Seconde Guerre mondiale