An ad hoc planning committee of the National Academies of Sciences, Engineering, and Medicine will organize two workshops on topics pertinent to the assessment of human health effects by the U.S.

A silent, educational film about Second Order Triangulation would explore how this intermediate stage in establishing accurate survey frameworks refines and densifies the primary geodetic control ...

This is a preview. Log in through your library . Abstract Data were collected when transmitters and receivers were at known locations. One method used to determine the direction of the transmitters, ...

La combinación de diferentes metodologías en una misma investigación ha devenido en una práctica habitual en las ciencias sociales contemporáneas. De la subsidiariedad de lo cualitativo a lo ...