13,629 research outputs found
Aberration by gravitational lenses in motion
It is known that a fully relativistic integration of the null geodesics of a
weak perturbation of flat spacetime leads to a correction of order to the
bending angle and time delay due to a gravitational lens in slow motion with
small acceleration. The existence of the correction was verified by the
VLBI experiment of the bending of light by Jupiter on September 8, 2002. Here
the correction is interpreted by means of standard aberration of light in
an optically active medium with an effective index of refraction induced by the
gravitational field of a lens in motion.Comment: 3 page
On the Antitrust Remedies to Promote Retail Innovation in the EU Car Sector
One of the main objectives behind the recent Block Exemption Regulation for the motor vehicle sector is the promotion of innovative retail formats. This article explores the question whether the new competition rules are apt to attain this objective or should have adopted a more restrictive approach towards qualitative selective distribution
Impact of Cultural Diversity on Wages and Job Satisfaction in England
This paper combines individual data from the British Household Panel Survey and yearly population estimates for England to analyse the impact of cultural diversity on individual wages and on different aspects of job satisfaction. Do people living in more diverse areas have higher wages and job satisfaction after controlling for other observable characteristics? The results show that cultural diversity is positively associated with wages, but only when cross-section data are used. Panel data estimations show that there is no impact of diversity. Using instrumental variables to account for endogeneity also show that diversity has no impact.Cultural Diversity, Wages, Job Satisfaction.
How can we deal with the contemporary places and spaces of new industries? A planner’s perspective.
This paper is concerned with developing a better understanding of the dynamics that affect the relationship between industries and their geographical and spatial context at different scale in the XXI century. It shows the peculiar point of view of a planner with a focus on space and place in building the new post-crisis economic landscape.The paper states that the changing patterns of places and space of industries are a good perspective to observe – and also to criticize – the dominant narratives “at workâ€: global city-regions (Sassen 1991), space of flows (Castells 1996), creative cities (Florida 2002; Landry 2000, Evans 2009, Scott 2010), and creative industries and clusters (Comunian et al., 2010).Starting from etherogeneous italian case studies – a post industrial district, a creative cluster, an urban fashion district, etc. – it seeks to understand also and the ways in which the territories of industries and economic production are studied and represented in urban research, and to some extent in popular discourse. Castells M. (1996), The information Age: Economy, Society and Culture, Blackwell, Oxford. Comunian R., Chapain C., Clifton N. (2010), “Location, location, location: exploring the complex relationship between creative industries and placeâ€, Creative Industries Journal, 1. Evans G. (2009), “Creative Cities, Creative Spaces and Urban Policyâ€, Urban Studies, May. Florida R. (2002), The Rise of Creative Class, New York, Basic Books. Landry C. (2000), The Creative City, Earthscan. Roy A. (2009) “The 21st-Century Metropolis: New Geographies of Theoryâ€, Regional Studies 43.9. Sassen S. (1991), The Global City: New York, London, Tokyo, Princeton U. P. Scott A. J. (2010), “Cultural economy and the creative field of the cityâ€, Geografiska Annaler 2, Series B.
Extraction of the Ratio of the Neutron to Proton Structure Functions from Deep Inelastic Scattering
We study the nuclear () dependence of the European Muon Collaboration
(EMC) effect at high values of (). Our approach makes use of
conventional nuclear degrees of freedom within the Relativistic Impulse
Approximation. By performing a non-relativistic series expansion we demonstrate
that relativistic corrections make a substantial contribution to the effect at
and show that the ratio of neutron to proton structure
functions extracted from a global fit to all nuclei is not inconsistent with
values obtained from the deuteron.Comment: 12 pages, 2 figures available upon request, Revte
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