Abstract We introduce and study a one parameter deformation of the polynuclear growth (PNG) in (1+1)-dimensions, which we call $t$-PNG model. It is defined by requiring that, when two expanding islands merge, with probability $t$ they sprout another island on top merging location. At $t=0$, this becomes standard (non-deformed) PNG model droplet geometry, can be reformulated through longest incr...

The proton affinities of a series of monoand polynuclear zinc-thiolate compounds, mimicking zing finger protein and metallothioneins sites, have been investigated by Density Functional Theory calculations. This allows to evaluate the intrinsic nucleophilicity of synthetic and natural zinc-bound thiolates and to compare their relative reactivities. The site specificity of the experimental thiola...

The simultaneous addition of phosphate with 2,4-D enhances the toxicity of the latter to A. vinelandii. This enhanced toxicity is related to the magnesium concentration of the environment. The microbiology of coal has received little attention by comparison with the large amount of research on petroleum. Coal is a much more complex organic material than petroleum and probably consists of conden...