In current publication the stochastic model of individual migrations within the limits of closed domain and processes of data collections using in entomology are considered. The behavior of data variation with respect to changing of population size is analyzed. In particular, it was shown that dependence of standard deviations has a non-linear character under the population density increasing. ...

Novel technologies, such as GPS, the Internet and virtual environments are not only rapidly becoming an increasingly influential part of our daily lives, they also have tremendous potential for improving our understanding of where, when and why crime occurs. In addition to these technologies, several innovative research methods, such as neuropsychological measurements and time-space budgets, ha...

In this paper we argue for the systematic assessment and reporting of the reliability of data collection methods that rely on the automated collection of data from third party social media sites, where the researcher does not have direct access to meaning or control over data quality. Building on a long tradition of reliability assessment in the sciences and specifically in social science, we p...

Objective To test two methods of providing low cost information on the later health status of survivors of neonatal intensive care. Design Cluster randomised comparison. Setting Nine hospitals distributed across two UK health regions. Each hospital was randomised to use one of two methods of follow up. Participants All infants born <32 weeks’ gestation during 1997 in the study hospitals. Method...