The minimum energy arrangements of atoms adsorbed on a crystalline surface display a very rich set of geometries originated from the competition between the adsorbate-adsorbate interaction, and the tendency to occupy the ...

Electrical alternans, a beat-to-beat alternation in the electrocardiogram or electrogram, is frequently seen during the first few minutes of acute myocardial ischemia, and is often immediately followed by malignant cardiac ...