In this first exploration of europium-doped carbonated apatites the location carbonate was determined using environment model for analysis IR and NMR spectra. Europium-doped apatites, containing Eu/(Eu + Ca) mole ratios about 10%, were prepared by aqueous one-step addition syntheses. The spectra in samples are described model: A-type is assigned to channels only calcium ions (A = Ca6) or one Na...

BACKGROUND Energy from liquids is one of the most important factors that could impact on the high prevalence of children and adolescents obesity around the world. There are few data on the liquid consumption in Brazil. The aim of this study is to evaluate the volume and quality of liquids consumed by Brazilian children and adolescents and to determine the proportion of their daily energy intake...

Observations from 145 submersible dives are used to create a database of mid-ocean ridge scarp topography and lithology. Seafloor lithologies are classified into extrusives, basaltic talus, dykes, gabbros and serpentinites, and the dive locations are broadly classified according to whether they are close to transform valleys and as a function of ridge spreading rate. The database is used to det...

The serpentinite rock is formed by minerals of the serpentine group, such as antigorite and lizardite, can be found in several countries around world. It has commercial applications, among them its use an ornamental rock. numerous constructions, churches, houses buildings. However, trade names are adopted for rocks, making it difficult to identify confirm existence specific Using bibliographica...