OBJECTIVE To compare the time trends of Google search interest in methamphetamine and criminal offences related to this drug. METHODS Google Trends data for the search term "meth" was compared to methamphetamine-related crime statistics (incl. use, possession, and dealing) in Switzerland, Germany, and Austria for the years 2004-2016. Google data was availably monthly. Crime data was available...

We perform a numerical study of emergent spiral wave activity in a two-dimensional reaction-diffusion-mechanics medium with a regional inhomogeneity in active and passive mechanical properties. We find that self-sustaining spiral wave activity emerges for a wide range of mechanical parameters of the inhomogeneity via five mechanisms. We classify these mechanisms, relate them to parameters of th...

Landscape heterogeneity may influence ranging behaviour of mammals. Here we relate the home range size of elephants living in the Kruger National Park to the number of patches, proportion of each patch, spatial arrangement of patches, patch shape, and contrast between neighbouring patches. Home range sizes decreased exponentially with an increase in the number of patches per 100 km and the home...

A number of recent studies find that poor health is empirically associated with a safer portfolio allocation. It is difficult to say, however, whether this relationship is truly causal. Both health status and portfolio choice are influenced by unobserved characteristics such as risk attitudes, impatience, information, and motivation, and these unobserved factors, if not adequately controlled fo...

Article history: Received 1 May 2016 Accepted 1 May 2016 Available online 5 May 2016 methodology. These have resulted in significant clinical trial heterogeneity. Of the 16 studies included by Shen, 1 was blinded, 5 were retrospective, and there was variability in CD4/CD8 ratio cut-points and sarcoidosis diagnostic criteria. Significant heterogeneity still existed when the authors performed a s...