Jet quenching measurements with ATLAS at LHC

A broad program of measurements is planned for heavy ion collisions in ATLAS. With up to a factor of 30 increase in collision energy compared to existing data, significant new insights are anticipated to be obtained with the first data measured. Global features of the LHC collisions will be accessible with the early data and will set the stage for the precision measurements to follow. ATLAS is particularly well suited for exploration of "jet quenching," the extinction of energetic jets in the hot dense medium. Observations of heavy quark jet suppression will be possible with unprecedented energy reach and statistical precision, potentially yielding new insights into the basic mechanisms involved.Comment: 5 pages, 3 figure

J/{\Psi} and {\Psi}(2S) Production in p-Pb Collisions at 5.02 TeV with ATLAS

The production rates of heavy quarkonia in ion-ion collisions provide sensitive probes in the studies of the hot and dense matter formed in these collisions at high energies. However, a reference for understanding the behavior in the hot medium is necessary; p-A collisions open the possibility to study heavy quarkonia states in a smaller system of much lower average temperature. This is an important step in forming a baseline for understanding A-A collisions, as well as an investigation into the nature of modifications of the parton distributions in the nucleus. Using data collected at the LHC in 2013, we show results on the prompt J/{\Psi} and {\Psi}(2S) nuclear modification factors and the double ratio, {\Psi}(2S) divided by J/{\Psi} in p-Pb divided by the same in p-p, in p-Pb collisions at 5.02 TeV. The charmonia states were reconstructed via the dimuon decay channel and the yield is analyzed differentially in bins of transverse momentum, rapidity, and event activity.Comment: Proceedings contribution for the HARD PROBES 2015 Conference at McGill University in Montreal, June 29 - July 3, 2015. Four pages. To be published in Nuclear Physics B Proceedings Supplemen

Propagation of QCD Color through Strongly Interacting Systems

The propagation of QCD color through atomic nuclei is studied via a new analysis using a geometric model of semi-inclusive deep inelastic scattering. The experimental data were previously published by the HERMES Collaboration and consisted of the multiplicity ratio observable (2007) and the transverse momentum broadening observable (2010). We perform a simultaneous fit of these two observables to estimate (1) the color lifetime of the quark, (2) quark energy loss, (3) the $\hat{q}$ transport coefficient, and (4) the cross section for hadronic interaction with the medium. We present preliminary results for this fit.Comment: 4 pages, 3 figures; proceedings for the Eighth International Conference on Quarks and Nuclear Physics (QNP2018), Tsukuba, Japan. https://www-conf.kek.jp/qnp2018

Building on the cultural and linguistic capital of English learner (EL) students

Approaches and strategies that value and build upon the cultural and linguistic capital of English learner students are described. Through implementing such strategies, teachers can impress upon students and families that multiculturalism and multilingualism are highly beneficial to the classroom, school, and community

A Census of the Carina Nebula -- II. Energy Budget and Global Properties of the Nebulosity

The first paper in this series took a direct census of energy input from the known OB stars in the Carina Nebula, and in this paper we study the global properties of the surrounding nebulosity. We find that the total IR luminosity of Carina is about 1.2E7 Lsun, accounting for only about 50-60% of the known stellar luminosity from Paper I. Similarly, the ionizing photon luminosity -- (abridged; many important details omitted). Synchronized star formation around the periphery of Carina provides a strong case that star formation here was indeed triggered by stellar winds and UV radiation. This second generation appears to involve a cascade toward preferentially intermediate- and low-mass stars, but this may soon change when eta Car and its siblings explode. If the current reservoir of atomic and molecular gas can be tapped at that time, massive star formation may be rejuvinated around the periphery of Carina much as if it were a young version of Gould's Belt. Also, when these multiple SNe occur, the triggered second generation will be pelted repeatedly with SN ejecta bearing short-lived radioactive nuclides. Carina may therefore represent the most observable analog to the cradle of our own Solar System.Comment: MNRAS accepted, 14 pages, fig 1 in colo

Why the "Struggling Reader" label Is harmful (and what educators can do about it)

The authors featured in this department column share instructional practices that support transformative literacy teaching and disrupt “struggling reader” and “struggling writer” labels.Accepted manuscrip

Systematic Review of Physiotherapy during Acute Exacerbations of Chronic Obstructive Pulmonary Disease (AECOPD)

In COPD patients, acute exacerbations are important events. Reviews of studies investigating treatment during AECOPD focus on medical management, with little discussion of physiotherapy. Therefore a systematic review was undertaken of the studies pertaining to physiotherapy during AECOPD. Methods: Studies were identified by searching databases and scanning reference lists. Appropriate studies were reviewed by two independent investigators. Data were extracted using a standardized form. Where possible, a score was assigned using the PEDro scale for assessment of study quality. HIll, K., Patman, S., & Brooks, D. (2008). Systematic review of physiotherapy during Acute Exacerbations of Chronic Obstructive Pulmonary Disease (AECOPD). American Journal of Respiratory and Critical Care Medicine, 177, Abstracts Issue, A137. ISSN: 1073-449