Determining the Diffusivity for Light Quarks from Experiment

Charge balance functions reflect the evolution of charged pair correlations throughout the stages of pair production, dynamical diffusion, and hadronization in heavy-ion collisions. Microscopic modeling of these correlations in the full collision volume shows that the balance functions are sensitive to the diffusivity of light quarks when studied as functions of relative azimuthal angle. By restricting our analysis to K+,K- and p,pbar pairs, we find that the diffusivity of light quarks, a fundamental property not currently well understood, can be constrained by experimental measurement.Comment: 6 pages, newer version is longer than previous versio

Surf ’s Up: Work, Life, Balance and Brand in a New Age Capitalist Organization

This article reframes the notion of work/life balance through analysis of branding and the immaterial labour process in a ‘new age capitalist’ organization. The company does not manufacture material products; rather, value is produced through branding imported goods to promote ‘alternative’ ways of living. This is achieved through incorporation of leisure activities and lifestyles of key employees, effectively putting their ‘lives’ to ‘work’ in the creation of value for the company. For employees, therefore, much work actually takes place notionally outside or on the margins of their formally employed space and time. We argue that this qualitatively transforms the conceptions of, and relations between, work and life that underpin the concept of work/life balance. We conclude by exploring the tensions generated by organizational incorporation of employee autonomy in the pursuit of aspirational branding. </jats:p

A distributional model of semantic context effects in lexical processinga

One of the most robust findings of experimental psycholinguistics is that the context in which a word is presented influences the effort involved in processing that word. We present a novel model of contextual facilitation based on word co-occurrence prob ability distributions, and empirically validate the model through simulation of three representative types of context manipulation: single word priming, multiple-priming and contextual constraint. In our simulations the effects of semantic context are mod eled using general-purpose techniques and representations from multivariate statistics, augmented with simple assumptions reflecting the inherently incremental nature of speech understanding. The contribution of our study is to show that special-purpose m echanisms are not necessary in order to capture the general pattern of the experimental results, and that a range of semantic context effects can be subsumed under the same principled account.›

Student Attitude to Audio Versus Written Feedback

First year Biology at the University of Glasgow consists of two courses, 1A and 1B, with an annual intake of 750-800 students. Both courses consist of lectures, practical lab sessions, tutorials and discussion groups. With such large numbers of students, teaching methods and delivery continually change and develop to ensure best delivery of the course content. As such, assessment and feedback systems also need to remain current and accessible to all. Timely, instructive and developmental feedback on student work is arguably the most powerful single influence on a student’s ability to learn. As part of the transition from school into university, feedback is a recognised method of maximising student potential (Hattie and Timperley, 2007). Research shows that increasing student numbers and associated rise in marking workloads, means that feedback can be slow in returning to the student and lacking quality/detail (Glover and Brown, 2006). From the markers perspective there is some evidence that students fail to engage with, misinterpret or ignore written feedback. We have carried out a pilot study to apply, and attempt to build upon, principles of good feedback practice to the assessment of coursework. To do this, an essay assignment was submitted online by Biology 1A students, marked and written feedback provided to all. A randomly selected group of students (10% of the cohort) also received audio feedback (electronic audio files were imbedded into the student work and returned to them by e-mail) on their submitted work. All students then completed an anonymous ‘Feedback’ questionnaire detailing their experiences with the feedback they received, with additional questions that were answered solely by the ‘audio group’ asking more specific questions about the effectiveness of the audio feedback. To carry out this study, new technologies were utilised and these will be demonstrated at the meeting along with the study conclusions. Hattie, J. and Timperley, H. (2007) The power of feedback. Review of Educational Research, 77, 81–112 Glover, C. and Brown, E. (2006). Written Feedback for Students: too much, too detailed or too incomprehensible to be effective? Bioscience Education, 7

USBcat - Towards an Intrusion Surveillance Toolset

This paper identifies an intrusion surveillance framework which provides an analyst with the ability to investigate and monitor cyber-attacks in a covert manner. Where cyber-attacks are perpetrated for the purposes of espionage the ability to understand an adversary's techniques and objectives are an important element in network and computer security. With the appropriate toolset, security investigators would be permitted to perform both live and stealthy counter-intelligence operations by observing the behaviour and communications of the intruder. Subsequently a more complete picture of the attacker's identity, objectives, capabilities, and infiltration could be formulated than is possible with present technologies. This research focused on developing an extensible framework to permit the covert investigation of malware. Additionally, a Universal Serial Bus (USB) Mass Storage Device (MSD) based covert channel was designed to enable remote command and control of the framework. The work was validated through the design, implementation and testing of a toolset.Comment: In Proceedings AIDP 2014, arXiv:1410.322

MS Environmental Biology Capstone Project

MS Environmental Biology Capstone Projec

Precision Electro-Weak and Hadronic Luminosity Calculations

We have used YFS Monte Carlo techniques to obtain per-mil level accuracy for the Bhabha scattering cross section used in the luminosity monitor in electro-weak scattering experiments. We will describe techniques for extending these methods for use in the W production luminosity cross section for hadron colliders.Comment: 8 pages (LaTex) with 5 figures (EPS). Presented by S.A. Yost at the Third International Symposium on Quantum Theory and Symmetries, Cincinnati, Sept. 10 - 14, 200

Encumbered by Stage Fright Or I’m Not Sure Why I Did That

I hope to be as honest as possible. I’m hoping to be the star of the show. This is a series of onanistic musings, a rambling narrative that oscillates between truth and fabrication. There are instances of earnestness paired with ostentatious exaggeration. The frequent leaps from subject to subject, often seemingly unrelated to one another, reflect the ineluctably scatterbrained headspace that dictates how I operate in the studio, in every facet of life. Through this lens of storytelling I delve into a few artists, like Bruce Nauman, and rock and roll musicians, like Lou Reed, who I have been unable to divulge myself of a fixation with. They come to function almost like characters in the anecdotes. I’m going to tell you a couple of stories. I’m going to talk about myself quite a bit. I have a tendency to embellish, so take it all with a grain of salt. I don’t mean to insinuate that what follows is insincere, but it is glazed with anamneses and illusions. I like to think that through some phantom version or versions of myself I’d do a bit of aggrandizing; I could be the rock star I daydream of. Though sometimes the person playing the fool is a fool