American Pie: The Politics of Food in the 21st Century

American Pie: The Politics of Food in the 21st Century In light of the increasing interest in food studies at Penn and in Philadelphia, Penn Libraries is sponsoring the Muriel Pfaelzer Bodek Public Affairs Lecture Series focusing on food policy in the 21st century. The speakers, experts in their fields, address issues relating to global food security, sustainable agriculture, and food waste in America. Wednesday, April 11, 2012: Jonathan Bloom, The Food Not Eaten : Jonathan Bloom, journalist and author of American Wasteland: How America Throws Away Nearly Half of Its Food (and What We Can Do About It) (2010), speaks on how much food we waste, where and why we squander so much, the ethical, environmental, and economic impact of our actions, and, most importantly, how we can minimize waste. Thursday, April 19, 2012: Alan M. Kelly, Global Food Security: A 21st Century Challenge Dr. Alan M. Kelly, Dean Emeritus and Professor of Veterinary Medicine, University of Pennsylvania, speaks on the challenges faced by agriculture as it expands production to meet society\u27s growing needs while conserving the environment, controlling the spread of infectious diseases, and accommodating to the vagaries of climate change. Tuesday, April 24, 2012: John E. Ikerd, The Future of Food: Sustainable Agriculture is not Optional Dr. John E. Ikerd, Professor Emeritus of Agricultural Economics, University of Missouri, and author of Sustainable Capitalism: A Matter of Common Sense and Small Farms are Real Farms: Sustaining People Through Agriculture, will speak on the need for sustainable agriculture, the challenges facing the movement, and the development of a new and better paradigm. To download podcasts of these lectures, choose one of the additional files below. Lectures by Jonathan Bloom and Alan Kelly are available for download in audio-only (.mp3) and as audio with image (.m4v) versions. To view the event announcement, select Download button at upper right

Avalanche-mechanism loss at an atom-molecule Efimov resonance

The avalanche mechanism has been used to relate Efimov trimer states to certain enhanced atom loss features observed in ultracold-atom-gas experiments. These atom loss features are argued to be a signature of resonant atom-molecule scattering that occurs when an Efimov trimer is degenerate with the atom-molecule scattering threshold. However, observation of these atom loss features has yet to be combined with the direct observation of atom-molecule resonant scattering for any particular atomic species. In addition, recent Monte Carlo simulations were unable to reproduce a narrow loss feature. We experimentally search for enhanced atom loss features near an established scattering resonance between K40 Rb87 Feshbach molecules and Rb87 atoms. Our measurements of both the three-body recombination rate in a gas of K40 and Rb87 atoms and the ratio of the number loss for the two species do not show any broad loss feature and are therefore inconsistent with theoretical predictions that use the avalanche mechanism

Repositioning of special schools within a specialist, personalised educational marketplace - the need for a representative principle

This paper considers how notions of inclusive education as defined in the United Nations Educational, Scientific and Cultural Organization (UNESCO) Salamanca Agreement (1994) have become dissipated, and can be developed and reframed to encourage their progress. It analyses the discourse within a range of academic, legal and media texts, exploring how this dissipation has taken place within the UK. Using data from 78 specialist school websites it contextualises this change in the use of the terms and ideas of inclusion with the rise of two other constructs, the 'specialist school' and 'personalisation'. It identifies the need for a precisely defined representative principle to theorise the type of school which inclusion aims to achieve, which cannot be subsumed by segregated providers. It suggests that this principle should not focus on the individual, but draw upon a liberal/democratic view of social justice, underlining inclusive education's role in removing social barriers that prevent equity, access and participation for all

Subprocess Size in Hard Exclusive Scattering

The interaction region of hard exclusive hadron scattering can have a large transverse size due to endpoint contributions, where one parton carries most of the hadron momentum. The endpoint region is enhanced and can dominate in processes involving multiple scattering and quark helicity flip. The endpoint Fock states have perturbatively short lifetimes and scatter softly in the target. We give plausible arguments that endpoint contributions can explain the apparent absence of color transparency in fixed angle exclusive scattering and the dimensional scaling of transverse rho photoproduction at high momentum transfer, which requires quark helicity flip. We also present a quantitative estimate of Sudakov effects.Comment: 16 pages, 4 figures, JHEP style; v2: quantitative estimate of Sudakov effects and more detailed discussion of endpoint behaviour of meson distribution amplitude added, few other clarifications, version to appear in Phys. Rev.

In Situ Probes of the First Galaxies and Reionization: Gamma-ray Bursts

The first structures in the Universe formed at z>7, at higher redshift than all currently known galaxies. Since GRBs are brighter than other cosmological sources at high redshift and exhibit simple power-law afterglow spectra that is ideal for absorption studies, they serve as powerful tools for studying the early universe. New facilities planned for the coming decade will be able to obtain a large sample of high-redshift GRBs. Such a sample would constrain the nature of the first stars, galaxies, and the reionization history of the Universe.Comment: 8 pages, 3 figures, science white paper submitted to the US Astro2010 Decadal Surve