The cosmic ray spectrum has been shown to extend well beyond 10eV. With nearly 20 events observed in the last 40 years, it is now established that particles are accelerated or produced in the universe with energies near or above 10eV. No nearby astrophysical object has been shown to correlate with the arrival directions of the highest energy events, yet the exponential cut-off in the high energ...

We design a novel algorithm for solving Mean-Payoff Games (MPGs). Besides solving anMPG in the usual sense, our algorithm computes more information about the game, information that is important with respect to applications. The weights of the edges of an MPG can be thought of as a gained/consumed energy – depending on the sign. For each vertex, our algorithm computes the minimum amount of initi...

Recent developments in the treatment of a system of heavy quarks close to their production threshold are discussed. Particular emphasis is put on the next-to-nextto-next-to-leading order (NLO) corrections to the energy levels and the wave function and their effect on the cross section σ(ee → tt̄). Furthermore, the resummation of logarithmic corrections within the framework of potential nonrelati...

We report theoretical cross sections for direct photoionization of specific rovibrationallevels of the B 1 ~u+ electronic state of H 2• The calculated cross sections differ considerably from values recently determined by resonant enhanced multiphoton ionization (REMPI) studies. In an attempt to understand the disagreement, we analyze in detail the REMPI dynamics and find that the multi photon i...

We propose an alternative to the usual time–independent Born–Oppenheimer approximation that is specifically designed to describe molecules with symmetrical Hydrogen bonds. In our approach, the masses of the Hydrogen nuclei are scaled differently from those of the heavier nuclei, and we employ a specialized form for the electron energy level surface. Consequently, anharmonic effects play a role ...

This paper presents the construction of a novel representation of gray-level shape called the scale-spectrum space, which makes both spatial frequency channels of speciic importance (concerning spectrum information being isolated) as well as signiicant scale levels from the viewpoint of these spectrum bands explicit. In scale-space representation, where the gray-level shape is generally compris...

Wind energy has rapidly become an important alternative among renewable energies, and it is generally considered clean. However, little is known about its impact at the level of ecological communities, especially in biodiversity hotspots. The Isthmus of Tehuantepec is a highly biodiverse region in Mesoamerica, and has the highest potential for generating wind energy in Mexico. To assess the eff...

T paper introduces anchor levels as a new tool for multiattribute utility theory. Anchor levels are attribute levels whose values are not affected by other attributes. They allow for new interpretations and generalizations of known representations and utility measurement techniques. Generalizations of earlier techniques can be obtained because cases with complex interactions between attributes ...

Jet-cooled LiCu has been investigated using resonant two-photon ionization spectroscopy. A long vibrational progression was observed and identified as the @20.5# S←X S band system. Ten bands of the system were rotationally resolved for LiCu, giving bond lengths of r0 52.2618(3) Å for the X S state and re852.74(4) Å for the @20.5# S state. The fitted spectroscopic parameters of the @20.5# S stat...

We propose a new approach to calculate perturbatively the effects of a particular deformed Heisenberg algebra on energy spectrum. We use this method to calculate the harmonic oscillator spectrum and find that corrections are in agreement with a previous calculation. Then, we apply this approach to obtain the hydrogen atom spectrum and we find that splittings of degenerate energy levels appear. ...