We consider the influence of realistic island diffusion rates to homoepitaxial growth on metallic surfaces using a recently developed rate equation model which describes growth in the submonolayer regime with hyperthermal deposition. To this end, we incorporate realistic size and temperature-dependent island diffusion coefficients for the case of homoepitaxial growth on Cu(100) and Cu(111) surf...

The Mediterranean region representsone of the hotspots biodiversity many organisms and among these also Raphidioptera. With about 250 known species world-wide Raphidioptera is smallest order extant holometabolous insects. harbors 113 (= >45% world fauna), 33 >13% fauna) have been found on islands Sea. In course past 50 years most larger intensively explored for Raphidioptera, part...

&ik, Z., Results on homomorphic realization of automata by a,-products, Theoretical Computer Science 87 (1991) 229-249. The notion of an irreducible semigroup has been fundamental to the Krohn-Rhodes decomposition. In this paper we study a similar concept and point out its equivalence with the Krohn-Rhodes irreducibility. We then use the new aspect of irreducible semigroups to provide cascade d...

Fix a finite semigroup S and let a1, . . . , ak , b be tuples in a direct power S. The subpower membership problem (SMP) asks whether b can be generated by a1, . . . , ak. If S is a finite group, then there is a folklore algorithm that decides this problem in time polynomial in nk. For semigroups this problem always lies in PSPACE. We show that the SMP for a full transformation semigroup on 3 o...

We construct interacting quantum fields in 1+1 dimensional Minkowski space, representing neutral scalar bosons at positive temperature. Our work is based on prior work by Klein and Landau and Høegh-Krohn.

The wreck of St. Jordi (near the island Majorca in Balearic Islands) documents hold presence a bowl signed by potter Lapius, active central Italy II century BC. St Jordi, left from port Ionian (Pergamo, Rhodes?), can have stopped Ostia, depositing rhodian wine amphorae and loading black gloss ware, other materials, addition to Italo - Megarian directed Iberian Peninsula. In his cabotage, ship s...