Soft-gluon Resummation for High-pT Inclusive-Hadron Production at COMPASS

We study the cross section for the photoproduction reaction gamma N -> h X in fixed-target scattering at COMPASS, where the hadron h is produced at large transverse momentum. We investigate the role played by higher-order QCD corrections to the cross section. In particular we address large logarithmic "threshold" corrections to the rapidity dependent partonic cross sections, which we resum to all orders at next-to-leading accuracy. In our comparison to the experimental data we find that the threshold contributions are large and improve the agreement between data and theoretical predictions significantly.Comment: 13 pages, 7 figures, journal versio

The European Commission's public consultation on the review of EU copyright rules: a response by the CREATe Centre

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Cancellation of Glauber gluon exchange in the double Drell-Yan process

An essential part of any factorisation proof is the demonstration that the exchange of Glauber gluons cancels for the considered observable. We show this cancellation at all orders for double Drell-Yan production (the double parton scattering process in which a pair of electroweak gauge bosons is produced) both for the integrated cross section and for the cross section differential in the transverse boson momenta. In the process of constructing this proof, we also revisit and clarify some issues regarding the Glauber cancellation argument and its relation to the rest of the factorisation proof for the single Drell-Yan process.Comment: 65 pages, 23 figure

Charmonium spectral functions from 2+1 flavour lattice QCD

Finite temperature charmonium spectral functions in the pseudoscalar and vector channels are studied in lattice QCD with 2+1 flavours of dynamical Wilson quarks, on fine isotropic lattices (with a lattice spacing of 0.057 fm), with a non-physical pion mass of $m_{\pi} \approx$ 545 MeV. The highest temperature studied is approximately $1.4 T_c$. Up to this temperature no significant variation of the spectral function is seen in the pseudoscalar channel. The vector channel shows some temperature dependence, which seems to be consistent with a temperature dependent low frequency peak related to heavy quark transport, plus a temperature independent term at \omega>0. These results are in accord with previous calculations using the quenched approximation.Comment: 17 pages, 9 figures, 2 table

Effect of introducing the mucosal atomization device for fentanyl use in out-of-hospital pediatric trauma patients

Background: Pain associated with pediatric trauma is often under-assessed and undertreated in the out-of-hospital setting. Administering an opioid such as fentanyl via the intranasal route is a safe and efficacious alternative to traditional routes of analgesic delivery and could potentially improve pain management in pediatric trauma patients. Objective: The study sought to examine the effect of introducing the mucosal atomization device (MAD) on analgesia administration as an alternative to intravenous fentanyl delivery in pediatric trauma patients. The hypothesis for the study is that the introduction of the MAD would increase the administration of fentanyl in pediatric trauma patients. Methods: The research utilized a 2-group design (pre-MAD and post-MAD) to study 946 pediatric trauma patients (age ,16) transported by a large, urban EMS agency to one of eight hospitals in Marion County, which is located in Indianapolis Indiana. Two emergency medicine physicians independently determined whether the patient met criteria for pain medication receipt and a third reviewer resolved any disagreements. A comparison of the rates of fentanyl administration in both groups was then conducted. Results: There was no statistically significant difference in the rate of fentanyl administration between the pre-MAD (30.4%) and post-MAD groups (37.8%) (P5.238). A subgroup analysis showed that age and mechanism of injury were stronger predictors of fentanyl administration. Conclusion: Contrary to the hypothesis, the addition of the MAD device did not increase fentanyl administration rates in pediatric trauma patients. Future research is needed to address the barriers to analgesia administration in pediatric trauma patients

Do wildlife warning reflectors elicit aversion in captive macropods?

A goal to reduce the frequency of animal-vehicle collisions is motivating extensive research on this topic world-wide. Over the last 30 years, one popular mechanism to warn wildlife of approaching vehicles has been the wildlife warning reflector, manufactured and distributed under the brands Swareflex (Austria) and Strieter-Lite (USA). These reflectors were designed to scare deer and other ungulates from roadways at night by reflecting light from the headlights of approaching vehicles into the eyes of animals on the road verge. Robust documentation of their effectiveness has been lacking, yet there has been a push in Australia to examine their efficacy with regard to medium to large macropodids. Field trials of the reflectors are problematic and difficult to design rigorously, so we chose to examine the behavioural response of two captive macropodid species (Macropus rufus and M. rufogriseus) to the reflectors on a simulated road in order to derive some indication as to their efficacy. The behavioural response to the reflectors was negligible for both species and not consistent with an aversive effect to deter road use or crossing. We conclude that they would be of little value in our efforts to reduce the frequency of collisions of kangaroos or wallabies with vehicles in Australia. © CSIRO 2006

When Propaganda Masquerades as History: The Case of the Soviet Union

Years ago the historian J.H. Plumb reminded us that written history often serves to justify the authority of the state and establish social stability. The past, he writes, “has always been the handmaid of authority.” Nowhere does this appear truer than in the Soviet Union, where official Marxist ideology and propaganda about the greatness of the Soviet state, Communist Party, and leaders like Lenin and Stalin were woven into historical narratives, school curricula, and all areas of culture. This talk will explore the distortions and falsification of history in Soviet Russia, explain the social and political conditions that made it possible, and draw some lessons for our own approach to the past today

Reflections on Deep Time: From the Big Bang to the End of Planet Earth

Since the eighteenth century, a series of discoveries in the fields of geology, paleontology, and astronomy have revealed that the world and the broader universe are much older than previously thought. Instead of being a few thousand years old, the Earth is now recognized to be around 4.5 billion years old, while the universe itself took shape about 13.8 billion years ago. Historian Daniel Schafer will explore the discovery of “deep time” and reflect on its implications for our understanding of humanity’s place in the wider universe

The Dark Side of Liberation: When Historical Movements for Change Go Wrong

Americans love a good liberation movement. Whether it is our own Founding Fathers, the Civil Rights Movement, Gandhi’s call for the independence of India, or even the revolutionaries of this year’s Arab Spring, we love to listen to the voices of liberation and cheer for their victories. Yet we don’t like to dwell on the uncomfortable truth that movements for liberation often go off the rails. Sometimes they are crushed by their opponents. Sometimes – and this is more troubling – movements for liberation succeed, but then turn into something authoritarian or even totalitarian. Dr. Dan Schafer, professor of history at Belmont University, will explore some of the reasons that liberation movements often fall short of their promise