Garden cities and the English new towns: foundations for new community planning

The postwar new towns in England were initiated by the New Towns Act of 1946, a keystone in the reconstruction of Britain after the Second World War. Further and mostly smaller new town designations were to follow during the first half of the 1960s. It was the 1965 New Towns Act, however, which brought into existence some of the largest and most famous new towns of the postwar period. Today, over 2.6 million people live in over thirty new towns in the United Kingdom. The majority of the new towns and their citizens are in England, the most populous country in the United Kingdom

The English new towns since 1946: What are the lessons of their history for their future?

During the twentieth century, Britain was a leading pioneer of planned new communities, and at the forefront of the international dissemination of garden city and new town planning. Yet valuable lessons from British town planning are being ignored by current small-scale ‘garden villages’ and eco-towns in the United Kingdom. These are small-scale developments that reflect a lack of national and international vision, and the demise of a dynamic integrated planning culture, that has characterised the British state in recent years

Virgo and the quest for gravitational waves

In the past ten years,several giant interferometers have been built around the world with the goal ofa first direct detection ofgravitational waves.The most sensitive detectors,2 interferometers for the US LIGO collaboration and the detector built by the Italo-French collaboration Virgo (fig.1) are approaching their design sensitivity. Scientific exploitation ofthese instruments is now starting ..

Communication without consciousness: the theory of brain-sign

Despite developments in neuroscience, consciousness is unidentified in the brain. Moreover there is no scientific definition of what it is or does. This paper proposes that consciousness is not a scientific category. However, by ‘postulating’ consciousness as self-explanation, the brain can communicate with other brains in collective action. But the brain can generate a more plausible self-description as brain-sign. There are two foundational tenets. (1) Brain-sign arises from the brain’s interpretation of its causal orientation towards the world at each moment, and is ‘apparent’ as the world; and (2) It facilitates communication between brains about the world in collective action which is uncertain or imprecise. It is therefore grounded in the brain’s bio-physical operation. Signs are ubiquitous bio-physical states, but they are not causal for the hosting organism. The paper contrasts brain-sign with consciousness both as theory, and in empirical findings. Brain-sign is the source of all theories, including itself

Gravitational Waves: opening a window on compact objects dynamics

Oral presentationInternational audienc

Morphology and hardness ratio exploitation under limited statistics

Gamma-ray astronomy has produced for several years now sky maps for low photon statistics, non-negligible background and comparatively poor angular resolution. Quantifying the significance of spatial features remains difficult. Besides, spectrum extraction requires regions with large statistics while maps in energy bands allow only qualitative interpretation. The two main competing mechanisms in the VHE domain are the Inverse-Compton emission from accelerated electrons radiating through synchrotron in the X-ray domain and the interactions between accelerated hadrons and the surrounding medium, leading to the production and subsequent decay of Pi0 mesons. The spectrum of the VHE emission from leptons is predicted to steepen with increasing distance from the acceleration zone, owing to synchrotron losses (i.e. cooled population). It would remain approximately constant for hadrons. Ideally, spectro-imaging analysis would have the same spatial scale in the TeV and X-ray domains, to distinguish the local emission mechanisms. More realistically, we investigate here the possibility of improving upon the currently published HESS results by using more sophisticated tools.Comment: 4 pages, 6 figures, Proceeding for a poster at the GAMMA08 Heidelberg Symposiu

The new suburban history, New Urbanism and the spaces in between

A review article of three recent books on suburbanization and suburbia in the USA: Andrew Friedman, Covert Capital: Landscapes of Denial and the Making of the US Empire in the Suburbs of Northern Virginia. Berkeley, Los Angeles: University of California Press, 2013. 416pp. £19.95 pbk. Elaine Lewinnek, The Working Man's Reward: Chicago's Early Suburbs and the Roots of American Sprawl. Oxford and New York: Oxford University Press, 2014. 239pp. 20 b&w illustrations. £30.99 hbk. Benjamin Ross, Dead End: Suburban Sprawl and the Rebirth of American Urbanism. Oxford and New York: Oxford University Press, 2014. 249pp. £20.99 hbk

Capability of Cherenkov Telescopes to Observe Ultra-fast Optical Flares

The large optical reflector (~ 100 m^2) of a H.E.S.S. Cherenkov telescope was used to search for very fast optical transients of astrophysical origin. 43 hours of observations targeting stellar-mass black holes and neutron stars were obtained using a dedicated photometer with microsecond time resolution. The photometer consists of seven photomultiplier tube pixels: a central one to monitor the target and a surrounding ring of six pixels to veto background events. The light curves of all pixels were recorded continuously and were searched offline with a matched-filtering technique for flares with a duration of 2 us to 100 ms. As expected, many unresolved (500 us) background events originating in the earth's atmosphere were detected. In the time range 3 to 500 us the measurement is essentially background-free, with only eight events detected in 43 h; five from lightning and three presumably from a piece of space debris. The detection of flashes of brightness ~ 0.1 Jy and only 20 us duration from the space debris shows the potential of this setup to find rare optical flares on timescales of tens of microseconds. This timescale corresponds to the light crossing time of stellar-mass black holes and neutron stars.Comment: Accepted for publication in Astroparticle Physics, 8 pages, 9 figures, 1 tabl