Scientists have developed a novel way to model whether the populations of more than 500 bird species are increasing or decreasing. The method solves a nagging statistical problem by accounting for ...

B3 modelling experience and extension to modelling of robust time trends for ASFR/TFR, and adult and old-age mortality data Leontine Alkema. Lessons learned from the B3 development and application to ...

This report deals with methods of obtaining information in population censuses, on the size of the population and its principal characteristics. This is Population Studies No. 4 for the UN Department ...

The 1951 Convention and the 1969 OAU Convention provide clear refugee definitions. The fact that more than 140 countries have acceded to the 1951 Convention or its 1967 Protocol, and many of these ...

The study of hard-to-reach populations presents significant challenges. Typically, a sampling frame is not available, and population members are difficult to identify or recruit from broader sampling ...

Objectives This study aims (1) to determine the prevalence of lower limb osteoarthritis (OA) and pain in retired Olympians; (2) to identify factors associated with their occurrence and (3) to compare ...

Objective To quantify US female and male Olympic athletes’ longevity and the years of life lost or saved due to multiple causes of death as compared with the US general population. Methods Former US ...