SRM 915c calcium carbonate mass fraction standard

This standard reference material from the National Institute of Standards and Technology (NIST) will help calibrate procedures for calcium determinations used in clinical analysis and for routine critical evaluation of the ...

Examining Smilodon's saber teeth

A team of researchers led by Narimane Chatar, a doctoral student at the EDDyLab of the University of Li├Ęge (Belgium), has tested the biting efficiency of Smilodon, an extinct genus of carnivore close to the extant felines. ...

Climate archives under the magnifying glass

The fossil remains of algae continuously accumulate in marine sediments, and these can be used to reconstruct past oceanic conditions. Molecular fossils, called lipid biomarkers, are of particular importance for this. They ...

Reaction insights help make sustainable liquid fuels

Methanol, produced from carbon dioxide in the air, can be used to make carbon neutral fuels. But to do this, the mechanism by which methanol is turned into liquid hydrocarbons must be better understood so that the catalytic ...

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