How healthy is your ‘community of practice’?

This article explores cultural change and situated approaches to learning as a basis for understanding developments in the daily life of the probation organization. These are highlighted in the concept of ‘communities of practice’ that describes learning in the everyday activities of practitioners’ work. It is argued that the future can be changed by greater attention to context specific knowledge-in-use through practitioner research.</p

MuLan: Towards a 1ppm muon lifetime measurement

The MuLan experiment will measure the lifetime of the positive muon to 1ppm. Within the Standard Model framework, this will permit a determination of the Fermi Constant to 0.5ppm. I present an update on our progress and achievements to date.Comment: 3 pages, 1 figure, contribution to the proceedings of CIPANP 2006 (May 30-June 3, 2006), Rio Grande, Puerto Ric

Composite scalars at CERN LEP: Constraining technicolor theories

LEPI and LEPII data can be used to constrain technicolor models with light, neutral pseudo-Nambu-Goldstone bosons, Pa. We use published limits on branching ratios and cross sections for final states with photons, large missing energy, jet pairs, and b bbar pairs to constrain the anomalous Pa Z0 Z0, Pa Z0 photon, and Pa photon photon couplings. From these results, we derive bounds on the size of the technicolor gauge group and the number of technifermion doublets in models such as Low-scale Technicolor

Searching for Millisecond Pulsars: Surveys, Techniques and Prospects

Searches for millisecond pulsars (which we here loosely define as those with periods $<$ 20 ms) in the Galactic field have undergone a renaissance in the past five years. New or recently refurbished radio telescopes utilizing cooled receivers and state-of-the art digital data acquisition systems are carrying out surveys of the entire sky at a variety of radio frequencies. Targeted searches for millisecond pulsars in point sources identified by the {\it Fermi} Gamma-ray Space Telescope have proved phenomenally successful, with over 50 discoveries in the past five years. The current sample of millisecond pulsars now numbers almost 200 and, for the first time in 25 years, now outnumbers their counterparts in Galactic globular clusters. While many of these searches are motivated to find pulsars which form part of pulsar timing arrays, a wide variety of interesting systems are now being found. Following a brief overview of the millisecond pulsar phenomenon, we describe these searches and present some of the highlights of the new discoveries in the past decade. We conclude with predictions and prospects for ongoing and future surveys.Comment: 16 pages, 3 figures, accepted for publication in Classical and Quantum gravit

Towards an innovation link between dynamic capabilities and sustainability strategy: options for emerging market companies

Over the last few years, there has been considerable scholarly interest in the strategic management concept of dynamic capabilities. During the same period, sustainability policies and strategies have also become a major focus for many companies. These two areas have resulted in major new innovative opportunities for companies, including those located in emerging markets. However to the present time, few studies have attempted to combine the growing scholarly topic of dynamic capabilities with the equally important topic of sustainability strategy in the context of emerging market companies. This paper links these two areas through the theoretical lens of innovation theory. It develops and proposes four main business options for companies, particularly those from emerging markets, from an innovation perspective. The paper contributes new knowledge by identifying and expanding on the innovation strategy links between dynamic capabilities and sustainability strategy. It offers theoretical insights into the nature of that connection in the context of companies from both developed and developing economies

Determination of the Equation of State of Dense Matter

Nuclear collisions can compress nuclear matter to densities achieved within neutron stars and within core-collapse supernovae. These dense states of matter exist momentarily before expanding. We analyzed the flow of matter to extract pressures in excess of 10^34 pascals, the highest recorded under laboratory-controlled conditions. Using these analyses, we rule out strongly repulsive nuclear equations of state from relativistic mean field theory and weakly repulsive equations of state with phase transitions at densities less than three times that of stable nuclei, but not equations of state softened at higher densities because of a transformation to quark matter.Comment: 26 pages, 6 figures; final versio