Researchers have proposed an optimized ratio-type estimator that uses auxiliary attributes to estimate population means more ...

A mixed-methods study of 350 Ghanaian mobile money users finds interoperability is associated with increased savings, lower ...

Here's what multiple studies actually reveal about the prevalence of "dead people voting." ...

Geophysics is the study of earth through the collection and analysis of physical property measurements that are recorded at or near the ground surface. Thus, geophysical methods include a vast array ...

This page contains links to EPA's Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air. The Compendium contains a set of 17 peer reviewed, standardized methods for the ...