during the 1960’s, many as was firmly supported by the historical founders of econometrics, had hoped that econometrics would provide a sound scientific foundation for econometrics in which each element of specification would be determined primarily on the basis of economic theory. however, due to misusing of econometrics and also wide usage of the so called cookbook econometrics, many research...

Calling mobile phones tends to be far more expensive than calling subscribers connected to fixed lines. The reason for this discrepancy is rooted in the currently rather over-priced interconnection fees in the mobile sector. In order to find some explanations and to address this problem more carefully in the future, this paper tries to present and assess the technical, economic and legal framew...

Stalking is a thriving social and criminal concern and a risk inherent in our personal and professional lives. Health care professionals, particularly psychiatrists and other mental health practitioners, are vulnerable to being stalked by their patients and, far from providing helpful insights that discourage the behavior, their training can be a hindrance. Neither a psychiatrist's gender nor s...

A grammar G is context limited If there exists a partial ordering on the alphabet of G under which, far every production » -♦ 8 of G, every letter of a Is smaller than some letter of 6. It Is proved that the languages generated by context limited grammar«? are .lust the context free languages. Unamblgulty of general grammars Is defined and discussed carefully, preparatory to proving that the la...

D We present a fixpoint semantics for disjunctive logic programs. We extend the concept of the Herbrand base of a logic program to consist of all positive clauses that may be formed using the atoms in the Herbrand base. A monotonic closure operator is defined, operating on the lattice formed by the power set of the extended Herbrand base. The closure operator is shown to achieve a least fixpoin...

The Locus model of search is a non-back t rack ing , determinist ic search technique in which a beam of near-miss a l ternat ives around the best path are extended in paral le l for g raph searching problems. In this paper we formulate image i n te rp re ta t i on as a g iaph searching problem and show bow the Locus model provides a near-opt imal minimal e f fo r t so lut ion. The s t ruc ture ...

A recent paper in Nature (Lim et al., 2012) describes the effects of melanocortin receptors in the nucleus accumbens. The studies connect a hypothalamic peptide system with brain reward centers and show effects on specific neuronal populations and behavioral components of mood.