Research inquiries of links between the built environment and population health have largely focused onphysical activity and social connectedness, associated health risks or benefits, and resultant chronic diseases; as well as access to healthy food, exposure to green views or green space, blue space, noise abatement, air pollution and biodiversity. Artificial light at night (ALAN) is mentioned...

Paula Kotzé, William Wong, Joaquim Jorge, Alan Dix and Paula Alexandra Silva 1 Meraka Institute, Centre for Scientific and Industrial Research, and School of Computing, University of South Africa, P O Box 395, Pretoria, 0001, South Africa [email protected] WWW home page: http://www.meraka.org.za Interaction Design Centre 2 School of Computing Science, Middlesex University, The Burroughs...

This paper describes the activities in Application Level Active Networks (ALAN) under the DARPA-funded RADIOACTIVE Project; this is closely related to work carried out under a European Commission project ANDROID. The ALAN infrastructure was developed mainly under other projects; it is summarized here mainly for background. The version used here relies on separate Active Applications driven by p...

In this paper we present the syntax and semantics of a temporal action language named Alan. The language allows the specification of systems where the future state of the world depends not only on the current state, but also on the past states of the world, that is, where the Markov property does not hold. To the best of our knowledge, Alan is the first action language which incorporates causal...

A 1980 poem by Alan Mackay outlines his aspiration 'to see what all have seen but think what none have thought': a daunting task, which he accomplished not once, but several times. A 'truly myriadminded, manysided man-a veritable triacontahedron' in the words of his colleagues and friends, Alan Mackay pursued a lifelong interest in the problems of morphogenesis and form, a comprehension of whic...

This approach aims at addressing crucial issues in complex distributed software such as capability of evolving and adaptivity. Within the area of goaloriented software requirements engineering, we propose the use of goal models at different abstraction levels in engineering a Multi-Agent System (MAS), namely, not only at design time, but also as a part of the agent knowledge and choice strategy...

increases in rodents Hillary S. Young*, Rodolfo Dirzo, Kristofer M. Helgen, Douglas J. McCauley, Charles L. Nunn, Paul Snyder, Kari E. Veblen, Serena Zhao and Vanessa O. Ezenwa University of California Santa Barbara, Santa Barbara, California 93106, USA; Division of Mammals, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia 20013, USA; Mpala Research ...

Understanding the allocation of skilled labor across industries is necessary to explain inter-industry wage differences and the effect of trade on wages. This paper develops an assignment model with both labor and non-labor inputs in which the assignment of heterogeneous labor across sectors is driven by variation in non-labor input productivity. A scale of operations effect causes high skill a...

In the presence of realistic soil inhomogeneities and surface clutter, employment of high-energy photon radiation (x rays or gamma rays) for landmine detection requires mine-feature imaging with centimeter spatial resolution. An x-ray backscatter method has been developed with photon detection efficiency sufficiently high such that an electric power requirement of only hundreds of watts yields ...