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La ingeniería civil en México
(2013)
El ser humano, por su necesidad natural de bienestar, ha buscado mejorar su entorno por medio de un sinfín de actividades y trabajos, que modifican al medio natural. Sin embargo, dicha labor representa múltiples problemas ...
Microscopic evidences of replacement of iron sulfide by iron oxide in macro Fossils: a useful tool for the search of life in mars?
(2013)
The present paper documents the presence of elements such as isolated crystals, framboids and teeth and socket structures in samples of iron oxides collected from macrofossils from the Upper Cretaceous (Turonian) Eagle ...