Igneous petrology most common application of stratigraphic dating on volcanic rocks. In petrology the mineral clinopyroxene is used for temperature and pressure calculations of the magma that produced igneous rock containing this mineral. Clinopyroxene thermobarometry is one of several geothermobarometers. Two things make this method especially useful: first, clinopyroxene is a common phenocryst in igneous rocks easy to identify; and secondly, the crystallization of the jadeite component of clinopyroxene implies a growth in molar volume being thus a good indicator of pressure. Most contemporary ground breaking in igneous petrology has been published in prestigious American and British scientific journals of worldwide circulation
The Gothenburg Study of Children with DAMP conclusion which does not need strengthening by what could have been found in the destroyed research material". (Another problem is the boy:girl ratios in the study; the ratio in the control group is 1:1, whereas the ratio in the index groups is 4:1.) The major Swedish newspapers have had tens of stories on the controversy: Dagens Nyheter, Svenska Dagbladet, Göteborgs-Posten, etc. There was also a one-hour program about DAMP on Swedish TV that discussed the controversy over Gillberg's Gothenburg study at length. In Norway, the newspaper Dagsavisen ran a series of critical stories. The Gothenburg Study of Children with DAMP