Disclosed are calcium fortified, soy-based, infant nutritional formulas, including powder, liquid, or concentrate embodiments comprising per 100 kcal of formula lipid, preferably up to about 8. The quinazoline derivatives of formula are inhibitors of signal transduction mediated by tyrosinekinases and by the Epidermal Growth Factor-Receptor and are therefore particularly suitable for the treatment of tumoral diseases. In a second operation state, the refresh control apparatus turns off the power supply to at least one circuit block using the power switching circuit.