Towards Coordination-Intensive Visualization Software

Most coordination realizations in current visualization systems are ''last-minute'' ad-hoc and rely on the richness of the chosen implementation language. Moreover, very few visualization models implicitly consider coordination. If coordination is contemplated from the design point of view, it is usually only regarded as part of the communication protocol and is generally dealt with within that restricted domain. Coordinated multiple views are beneficial and a flexible model for coordination will ensure easy embedding of coordination in such exploratory environments. This paper compares different approaches to coordination in exploratory visualization (EV). We recognize the need for a coordination model and for that we formalize aspects of coordination in EV. Furthermore, our work draws on the findings of the interdisciplinary study of coordination by various researchers

Review of the financial and medicolegal implications of nasal fractures seen at St Luke’s Hospital

Simple nasal bone fractures are the third most common type of all fractures leading to numerous patient visits at the Accident & Emergency department. Nasal fractures are commonly over-investigated in St Luke’s hospital leading to a substantial financial burden on our health system. In this article we review the frequency of simple nasal fractures as well as the necessity or otherwise of nasal x-ray imaging in addition to the financial and health consequences that result from nasal x-ray imaging. These issues are also discussed from a legal perspective.peer-reviewe

Feedback In Luminous Obscured Quasars

We use spatially resolved long-slit spectroscopy from Magellan to investigate the extent, kinematics, and ionization structure in the narrow-line regions of 15 luminous, obscured quasars with z < 0.5. Increasing the dynamic range in luminosity by an order of magnitude, as well as improving the depth of existing observations by a similar factor, we revisit relations between narrow-line region size and the luminosity and linewidth of the narrow emission lines. We find a slope of 0.22 +/- 0.04 for the power-law relationship between size and luminosity, suggesting that the nebulae are limited by availability of gas to ionize at these luminosities. In fact, we find that the active galactic nucleus is effectively ionizing the interstellar medium over the full extent of the host galaxy. Broad (similar to 300-1000 km s(-1)) linewidths across the galaxies reveal that the gas is kinematically disturbed. Furthermore, the rotation curves and velocity dispersions of the ionized gas remain constant out to large distances, in striking contrast to normal and starburst galaxies. We argue that the gas in the entire host galaxy is significantly disturbed by the central active galactic nucleus. While only similar to 10(7)-10(8) M-circle dot worth of gas are directly observed to be leaving the host galaxies at or above their escape velocities, these estimates are likely lower limits because of the biases in both mass and outflow velocity measurements and may in fact be in accord with expectations of recent feedback models. Additionally, we report the discovery of two dual obscured quasars, one of which is blowing a large-scale (similar to 10 kpc) bubble of ionized gas into the intergalactic medium.NSF AST-0548198Astronom

The Public Sector HIV/AIDS Treatment Roll-out Campaign in the Western Cape: A case study highlighting success factors and challenges

Word processed copy.Includes bibliographical references (leaves 84-98).Until recently, the national implementation of a public sector Antiretroviral Therapy (ART) programme in South Africa seemed financially impossible. Drastically reduced prices for Antiretrovirals (ARVs) combined with substantial donor funding and the long-awaited adoption of a national treatment plan, have, however, shifted the debate. Now the question is not so much should universal ART be provided by government but, rather, is it possible to implement in severely resource-constrained environments and, if so, what are the best ways to deliver these services

Excitation and Propagation of Eccentricity Disturbances in Planetary Systems

The high eccentricities of the known extrasolar planets remain largely unexplained. We explore the possibility that eccentricities are excited in the outer parts of an extended planetary disk by encounters with stars passing at a few hundreds of AU. After the encounter, eccentricity disturbances propagate inward due to secular interactions in the disks, eventually exciting the innermost planets. We study how the inward propagation of eccentricity in planetary disks depends on the number and masses of the planets and spacing between them and on the overall surface-density distribution in the disk. The main governing factors are the large-scale surface-density distribution and the total size of the system. If the smeared-out surface density is approximated by a power-law \Sigma(r)\propto r^{-q}, then eccentricity disturbances propagate inward efficiently for flat density distributions with q < 1. If this condition is satisfied and the size of the planetary system is 50 AU or larger, the typical eccentricities excited by this mechanism by field star encounters in the solar neighborhood over 5 Gyr are in the range 0.01-0.1. Higher eccentricities (> 0.1) may be excited in planetary systems around stars that are formed in relatively dense, long-lived open clusters. Therefore, this mechanism may provide a natural way to excite the eccentricities of extrasolar planets.Comment: 23 pages including 4 b/w figures and 1 color figure, accepted to A

Sensing the Everyday

Sensing the Everyday is a multi-sited ethnographic inquiry based on fieldwork experiences and sharp everyday observations in the era of crisis. Blending sophisticated theoretical analyses with original ethnographic data, C. Nadia Seremetakis journeys from Greece to Vienna, Edinburgh, Albania, Ireland, and beyond. Social crisis is seen through its transnational multiplication of borders, thresholds and margins, divisions, and localities as linguistic, bodily, sensory, and performative sites of the quotidian in process. The book proposes everyday life not as a sanctuary or as a recessed zone distanced from the structural violence of the state and the market, but as a condition of im/possibility, unable to be lived as such, yet still an encapsulating habitus. There the impossibility of the quotidian is concretized as fragmentary and fragmenting material forces. Seremetakis weaves together topics as diverse as borders and bodies, history and death, the earth and the senses, language and affect, violence and public culture, the sociality of dreaming, and the spatialization of the traumatic, in a journey through antiphonic witnessing and memory. Her montage explores various ways of juxtaposing reality with the irreal and the imaginal to expose the fictioning of social reality. The book locates her approach to ethnography and the ‘native ethnographer’ in wider anthropological and philosophical debates, and proposes a dialogical interfacing of theory and practice, the translation of academic knowledge to public knowledg

Human Health Risk Assessment for Petroleum Refining Industry of the Remaining Air Toxics after MACT I Emissions Reductions

Inhalation risks on human health for hazardous air pollutants emitted from MACT I petroleum refining industry were determined using EPA HEM-3 Program. Methodology included compiling vertical and fugitive emissions from 2002 National Emissions Inventory for sources inside two facilities in Louisiana, \u27Motiva Norco\u27 and \u27Valero St. Charles\u27 refineries. Six cases were modeled applying EPA criteria, where cancer risks are \u27low\u27 if the probability is. 1/1, 000, 000, and non-cancer risks are harmful when hazard quotient is \u3e 1. It was demonstrated that fugitive emissions have more impact on human health than the verticals because of their significant portion of the total refining emissions. HAPs can cause moderate adverse effects in humans living nearby refineries, as 113 people resulted in high risk of respiratory problems with Valero emissions, 4571 people resulted in \u27moderate\u27 risk of getting cancer with Motiva emissions, 2702 people with Valero emissions, and 11, 282 people with both refineries\u27 emissions