A spatial analysis was carried out in order to analyse the reason why the risk of Bovine Spongiform Encephalopathy (BSE) was spatially heterogeneous in France, during the period following the feed ban of Meat and Bone Meal to cattle. The hypothesis of cross-contamination between cattle feedstuff and monogastric feedstuff, which was strongly suggested from previous investigations, was assessed, ...

HTTPS is the de facto standard for securing Internet communications. Although it is widely deployed, the security provided with HTTPS in practice is dubious. HTTPS may fail to provide security for multiple reasons, mostly due to certificate-based authentication failures. Given the importance of HTTPS, we investigate the current scale and practices of HTTPS and certificate-based deployment. We p...

For Tim Noakes, the University of Cape Town's 'great centenary debate' on what constitutes a healthy diet was a 'kangaroo court', deliberately set up to discredit the 'inconvenient and threatening truths' behind his relatively recent and much-touted high-fat, no sugar, no carbohydrates eating regimen.

Economists often point to Pigouvian taxes and cap & trade programs as the preferred policy tools for reducing greenhouse gases. In contrast, policymakers have relied on measures that either explicitly or implicitly subsidize low carbon fuels. We simulate a transportation-sector cap & trade program (CAT) and three policies currently in use: ethanol subsidies, a renewable fuel standard (RFS), and...

I’ve been teaching clinical medicine for more than 30 years but it seems to be getting harder, not easier. Conventional wisdom in the USA holds that the problem is time and money (or, more precisely: time is money). Hospitalised patients, discharged before doctors can get to know them, are sicker and quicker today. Outpatient teaching is no less awkward, 10-minute offi ce visits and outdated Me...