A phenomenological model of the Landau type forms the basis for a study of elastic distortions near the spin-Peierls transition T c in CuGeO 3. The atomic displacements proposed by Hirota et al. are accounted for by the model which includes linear coupling between Cu and O distortions. Cu displacements are seen to be responsible for anomalies in the elastic properties at T c , whereas incipient...

A suggestive phenomenological relation is found among the lepton and quark masses which suggests a new insight into the problem of generations and also gives a prediction for the top quark mass in agreement with the range of values which is actually expected.

This essay attempts a renewed, critical exposition of Husserl’s theory of the phenomenological reduction, incorporating manuscript material that has been published since the defining essays of the first generation of Husserl research. The discussion focuses on points that remain especially crucial, i.e., the concept of the natural attitude, the ways into the reduction (and their systematics), a...

a simple semi-phenomenological model, which accurately predicts the dependence of thresholdcurrent for temperature of resonant-phonon three well quantum cascade laser based on verticaltransitions is offered. we found that, the longitude optical phonon scattering of thermally excitedelectrons is the most important limiting factor for thermal performance of high frequency thz qcls.in low frequenc...

We show that the dynamical contraction of n "internal" spacelike dimensions leads, in general, to the formation of a cosmic graviton background, similar to that produced by innation. By using a simple phenomenological model we discuss how to obtain information and constraints on the total number of extra dimensions, on their compactiication scale and on the kinematics of the dimensional reducti...

a SPECIAL ISSUE II, pp. 20 – 33, 2008 PHENOMENOLOGY, NEUROSCIENCE AND IMPAIRMENT

The discovery of strong γ–ray and hard X–ray emission and the results from various multifrequency campaigns have disclosed new aspects of the blazar phenomenology, leading to a much more robust understanding of the mechanisms underlying their emission, and offering clues for the energetics of their relativistic jets. I review these aspects, and propose that all the diversity in the blazar pheno...

A phenomenological model for species spreading which incorporates the Allee effect, a species’ maximum attainable growth rate, collective dispersal rate and dispersal adaptability is presented. This builds on a well-established reaction-diffusion model for spatial spreading of invading organisms. The model is phrased in terms of the “hostility” (which quantifies the Allee threshold in relation ...

We discuss the experimental evidence supporting the concept of universality of the rapidity gap probability in soft and hard diffraction, relate the gap probability to hadronic parton densities, and present a phenomenological model of diffraction in which the structure of the Pomeron is derived from the structure of the parent hadron. Predictions for diffractive deep inelastic scattering are co...