Using purely physical arguments, it is claimed that for ID Schrödinger operators with complex PT-symmetric potentials having a purely real, attractive potential well and a purely imaginary repulsive part, bound state eigenvalues will be discrete and real. This has been illustrated with several potentials possessing similar properties.

This paper analyses inherent clitics of idiomatic constructions as verbal arguments (Jelinek 1984, Baker 1996, Hale 2003) that are translated as free variables (Delfitto 2002): they are anaphoric to a (hidden) non-referential discourse topic or (right) dislocated constituent. Furthermore, since they denote abstract semantic objects (Asher 1993), they are assumed to be semantically incorporated ...

Recently Pedro F. González-Díaz had shown that phantom energy can results in achronal cosmic future where the wormholes become infinite before the occurrence of the big rip singularity. After that, while the phantom energy continues its accretion, any wormhole becomes the Einstein-Rosen bridge. Pedro F. González-Díaz has suggested that such objects can be used by an advanced civilization as the...

Cyber-Physical Systems (CPSs) are integrations of networking and distributed computing systems with physical processes, where feedback loops allow physical processes to affect computations and vice versa. Although CPSs can be found in several real-world domains (automotive, avionics, energy supply, etc), their verification often relies on simulation test systems rather then formal methodologies...

Today, most cyber-physical systems (CPS) in smart buildings require a wireless-based network infrastructure for sensing, communication, and actuation. In such CPSs, the energy expenditure and hence battery lifetime of the wireless network infrastructure depend heavily upon the placement of the base stations (BS). However, in indoor environments, BS placement is particularly challenging due to t...

We consider formation of composite strings and domain walls as a result of fusion of two elementary objects (elementary strings in the first case and elementary walls in the second) located at a distance from each other. The tension of the composite object T2 is assumed to be less than twice the tension of the elementary object T1, so that bound states are possible. If in the initial state the ...

It is known that Plotkin’s reduction theorem is very important for his theory of universal algebraic geometry [1, 2]. It turns out that this theorem can be generalized to arbitrary categories containing two special objects and in this case its proof becomes considerable more simple. This new proof and applications are the subject of the present paper. INTRODUCTION An automorphism φ of a categor...

The effects of 1) ripening 2, 7, and 14 d at 7 degrees C before freezing; 2) tempering 7, and 14 d at 7 degrees C after freezing; and 3) frozen storage for 1 and 4 wk at -20 degrees C, on the meltability, stretchability, and microstructure of pasta filata and nonpasta filata Mozzarella cheeses were investigated. Cheeses were cut into 5 x 10 x 7-cm blocks and vacuum-sealed 1 d after manufacture....

We motivate and define a category of topological domains, whose objects are certain topological spaces, generalising the usual ω-continuous dcppos of domain theory. Our category supports all the standard constructions of domain theory, including the solution of recursive domain equations. It also supports the construction of free algebras for (in)equational theories, provides a model of paramet...