Ach (Ah, Alas)

DX centers in AlAs and GaAs-AlAs selectively doped superlattices

Dx centers have been investigated using deep level transient

Alas for Volapük

that his/­her monozygotic twin and a 39% chance that a dizygotic twin will also be dyscalculic. The link also exists between dyscalculics' parents and siblings: around half of the all first-degree family members of a dyscalculic also have dyscalculia (mothers, 67%; fathers, 41%; brothers, 53%; sisters, 52%), and 43% of the second-degree relatives. This prevalence is around tenfold higher than e...

AH Plus

Electron momentum density in AlAs

A study of electron momentum density distribution in AlAs by means of Compton profiles is presented. The Compton profile measurement on polycrystalline sample of AlAs is performed employing 59.54 keV gamma-rays emanating from Am radioisotope. The measurement is compared with the empirical pseudopotential method (EPM) and there is good agreement between two data. The ionic model calculations for...

Ah receptor signaling pathways.

The aryl hydrocarbon (Ah) receptor has occupied the attention of toxicologists for over two decades. Interest arose from the early observation that this soluble protein played key roles in the adaptive metabolic response to polycyclic aromatic hydrocarbons and in the toxic mechanism of halogenated dioxins and dibenzofurans. More recent investigations have provided a fairly clear picture of the ...