We superimpose a radiation fallout model onto a traffic flow model to assess the evacuation versus shelter-in-place decisions after the daytime ground-level detonation of a 10-kt improvised nuclear device in Washington, DC. In our model, ≈ 80k people are killed by the prompt effects of blast, burn, and radiation. Of the ≈ 360k survivors without access to a vehicle, 42.6k would die if they immed...

Animals rely on a wide range of sensory modalities to obtain information about their environment, and to determine the most appropriate behavioural response for a give situation. Scincid lizards use both chemosensory and visual cues in tasks such as mate location, shelter-site selection, and predator evasion. Published literature has focused primarily on the use of chemosensory information by t...

The mechanisms that drive density dependence are rarely studied in the applied context of population management. We examined the potential for competition for food and shelter and the resulting demographic density dependence to influence how well populations of the eastern king prawn Penaeus plebejus Hess can recover following marine stock enhancement programmes in which captive-bred juveniles ...

Like more than 150 communities in Texas, our community participated in disaster response for Gulf coast citizens evacuated from hurricanes Katrina and Rita. We implemented and adjusted emergency operations plans that were designed to respond to a local disaster. Lessons learned will strengthen our disaster preparedness in the future, including the importance of a robust medical presence at evac...

In post-disaster reconstruction the social aspects of housing provision are important for the success of both emergency shelters and permanent housing, particularly in settlements that have been permanently relocated or entirety rebuilt. The social dimensions of housing reconstruction after disaster are discussed in the context of the long-term effects of reconstruction after the Yungay, Peru E...

BACKGROUND Homeless populations have complex and diverse end-of-life care needs. However, they typically die outside of the end-of-life care system. To date, few studies have explored barriers to the end-of-life care system for homeless populations. This qualitative study involving health and social services professionals from across Canada sought to identify barriers to the end-of-life care sy...

In this paper, we conduct a systematic study of human-initiated cascading failures in three critical inter-dependent societal infrastructures due to behavioral adaptations in response to a crisis. We focus on three closely coupled socio-technical networks here: (i) cellular and mesh networks, (ii) transportation networks and (iii) mobile call networks. In crises, changes in individual behaviors...

Taxes have major costs beyond the collected revenue: deadweight from distorted incentives, compliance and enforcement costs, etc. A simple market mechanism, the Equity Tax, avoids these problems for the trickiest cases: corporate, dividend, and capital gains taxes. It exploits the ability of the share prices to reflect the expected true annual return (as perceived by investors, not as defined b...

We evaluated a scheme for assessing shelter dog behaviour, which used 28 tests and rated responses from 0 (positive response) to 5 (fear, tonic immobility, or escape attempts). The assessment was evaluated for 236 dogs, and was repeated by a different assessor for 39 dogs approximately 80 days after rehoming to determine relevance of individual test components. A new owner survey evaluated sati...