Spectroscopic Confusion: Its Impact on Current and Future Extragalactic HI Surveys

We present a comprehensive model to predict the rate of spectroscopic confusion in HI surveys, and demonstrate good agreement with the observable confusion in existing surveys. Generically the action of confusion on the HI mass function was found to be a suppression of the number count of sources below the `knee', and an enhancement above it. This results in a bias, whereby the `knee' mass is increased and the faint end slope is steepened. For ALFALFA and HIPASS we find that the maximum impact this bias can have on the Schechter fit parameters is similar in magnitude to the published random errors. On the other hand, the impact of confusion on the HI mass functions of upcoming medium depth interferometric surveys, will be below the level of the random errors. In addition, we find that previous estimates of the number of detections for upcoming surveys with SKA-precursor telescopes may have been too optimistic, as the framework implemented here results in number counts between 60% and 75% of those previously predicted, while accurately reproducing the counts of existing surveys. Finally, we argue that any future single dish, wide area surveys of HI galaxies would be best suited to focus on deep observations of the local Universe (z < 0.05), as confusion may prevent them from being competitive with interferometric surveys at higher redshift, while their lower angular resolution allows their completeness to be more easily calibrated for nearby extended sources.Comment: Accepted to MNRAS, 14 pages, 9 figures, 2 table

Community music: history and current practice, its constructions of ‘community’, digital turns and future soundings

The UK has been a pivotal national player within the development of community music practice. In the UK community music developed broadly from the 1960s and had a significant burgeoning period in the 1980s. Community music nationally and internationally has gone on to build a set of practices, a repertoire, an infrastructure of organisations, qualifications and career paths. There are elements of cultural and debatably pedagogic innovations in community music. These have to date only partly been articulated and historicised within academic research. This document brings together and reviews research under the headings of history and definitions; practice; repertoire; community; pedagogy; digital technology; health and therapy; policy and funding, and impact and evaluation. A 90-entry, 22,000 word annotated bibliography was also produced (McKay and Higham 2011). An informed group of 15 practitioners and academics reviewed the authors’ initial findings at a knowledge exchange colloquium and advised on further investigation. Some of the gaps in research identified are: an authoritative history, an examination of repertoire, the relationship with other music (practice), the freelance practitioner career, evidence of impact and value, the potential for a pedagogy

Cardiomyocyte electrophysiology and its modulation: current views and future prospects

Normal and abnormal cardiac rhythms are of key physiological and clinical interest. This introductory article begins from Sylvio Weidmann's key historic 1950s microelectrode measurements of cardiac electrophysiological activity and Singh & Vaughan Williams's classification of cardiotropic targets. It then proceeds to introduce the insights into cardiomyocyte function and its regulation that subsequently emerged and their therapeutic implications. We recapitulate the resulting view that surface membrane electrophysiological events underlying cardiac excitation and its initiation, conduction and recovery constitute the final common path for the cellular mechanisms that impinge upon this normal or abnormal cardiac electrophysiological activity. We then consider progress in the more recently characterized successive regulatory hierarchies involving Ca2+ homeostasis, excitation–contraction coupling and autonomic G-protein signalling and their often reciprocal interactions with the surface membrane events, and their circadian rhythms. Then follow accounts of longer-term upstream modulation processes involving altered channel expression, cardiomyocyte energetics and hypertrophic and fibrotic cardiac remodelling. Consideration of these developments introduces each of the articles in this Phil. Trans. B theme issue. The findings contained in these articles translate naturally into recent classifications of cardiac electrophysiological targets and drug actions, thereby encouraging future iterations of experimental cardiac electrophysiological discovery, and testing directed towards clinical management

The International Competition Network: Its Past, Current, and Future Role

In its first decade, the International Competition Network has prospered, contributed to the development of widely accepted international policy norms, and come to exemplify the form of voluntary multinational collaboration that commentators have identified as a promising way to facilitate international ordering amid the global decentralization and diversification of economic regulations. This article takes stock of ICN’s achievements, considers why it has succeeded in many of its aims, and asks a number of questions regarding what comes next. It seeks to inform the ICN’s future by offering a way to think of its institutional characteristics to assess its relative advantages.The ICN’s paramount goal is to facilitate convergence - the broad acceptance of standards concerning the substantive doctrine and analytical methods of competition law, the procedures for applying substantive commands, and the methods for administering a competition agency - on superior approaches concerning the substance, procedure, and administration of competition law with the expectation that if competition systems around the world opt in to superior techniques, they will achieve greater progress toward dismantling competitive restraints. The article begins by examining the convergence methods, specifically the four elements of ICN’s convergence strategy. It then discusses the context of the ICN within the major international competition networks that have played important roles in the development of international competition policy standards - OECD, UNCTAD, and the WTO. Finally, it looks at the ICC’s interaction with other multinational networks and considers how much the ICN’s convergence-related initiatives will reduce conflicts among jurisdictions with respect to the treatment of specific matters and whether ICN inspired convergence will suffice to eliminate transnational conflicts.The authors see three major focal points for the ICN in the coming decade. The first is to build on its past successes and continue to pursue the identification and adoption of best practices with respect to substantive standards, procedures and the administration of competitive agencies. The second is for future ICN efforts to identify and make use of complementarities with the OECD and UNCTAD to provide a basis for the networks to identify areas in which collaboration will improve their collective effectiveness. The third is to examine and refine the ICN’s operational framework and determine whether its structure and operational forms are adequate to supports its current and future programs. Finally, the authors see major and administrative challenges ahead with problems of resources, financing, and management that must be resolved for the ICC to have a successful second decade

The International Competition Network: Its Past, Current, and Future Role

In its first decade, the International Competition Network has prospered, contributed to the development of widely accepted international policy norms, and come to exemplify the form of voluntary multinational collaboration that commentators have identified as a promising way to facilitate international ordering amid the global decentralization and diversification of economic regulations. This article takes stock of ICN’s achievements, considers why it has succeeded in many of its aims, and asks a number of questions regarding what comes next. It seeks to inform the ICN’s future by offering a way to think of its institutional characteristics to assess its relative advantages.The ICN’s paramount goal is to facilitate convergence - the broad acceptance of standards concerning the substantive doctrine and analytical methods of competition law, the procedures for applying substantive commands, and the methods for administering a competition agency - on superior approaches concerning the substance, procedure, and administration of competition law with the expectation that if competition systems around the world opt in to superior techniques, they will achieve greater progress toward dismantling competitive restraints. The article begins by examining the convergence methods, specifically the four elements of ICN’s convergence strategy. It then discusses the context of the ICN within the major international competition networks that have played important roles in the development of international competition policy standards - OECD, UNCTAD, and the WTO. Finally, it looks at the ICC’s interaction with other multinational networks and considers how much the ICN’s convergence-related initiatives will reduce conflicts among jurisdictions with respect to the treatment of specific matters and whether ICN inspired convergence will suffice to eliminate transnational conflicts.The authors see three major focal points for the ICN in the coming decade. The first is to build on its past successes and continue to pursue the identification and adoption of best practices with respect to substantive standards, procedures and the administration of competitive agencies. The second is for future ICN efforts to identify and make use of complementarities with the OECD and UNCTAD to provide a basis for the networks to identify areas in which collaboration will improve their collective effectiveness. The third is to examine and refine the ICN’s operational framework and determine whether its structure and operational forms are adequate to supports its current and future programs. Finally, the authors see major and administrative challenges ahead with problems of resources, financing, and management that must be resolved for the ICC to have a successful second decade

The future of enterprise groupware applications

This paper provides a review of groupware technology and products. The purpose of this review is to investigate the appropriateness of current groupware technology as the basis for future enterprise systems and evaluate its role in realising, the currently emerging, Virtual Enterprise model for business organisation. It also identifies in which way current technological phenomena will transform groupware technology and will drive the development of the enterprise systems of the future

Argentina: The Crisis That Isn't

This report looks at Argentina's current debt, fiscal, and overall economic situation to see if there is justification for concerns that Argentina is facing serious economic problems that could lead to a default on its sovereign debt. The Argentine economy has grown more than 60 percent since its recovery began six years ago, has trade and current account surpluses, and has declining levels of debt relative to GDP and other indicators. It also has a large amount of reserves relative to potential debt financing shortfalls. The paper finds that there is little or no basis for the fear that Argentina might default on its sovereign debt at any time in the foreseeable future, or indeed even the more distant future