Vera Houghton

Wegner-Houghton equation and derivative expansion

Alfio Bonanno ∗(1,2), Vincenzo Branchina †(3), Herve Mohrbach ‡(4) and Dario Zappalà § (2,5) Istituto di Astronomia, Università di Catania, viale Andrea Doria 6, 95125, Catania, Italy (2) INFN,Sezione di Catania, corso Italia 57, 95129, Catania, Italy Laboratory of Theoretical Physics , University of Strasbourg, 3,rue de l’Universite, 67000, Strasbourg France LPLI-Institut de Physique, F-57070 ...

Wegner-Houghton equation in low dimensions

We consider scalar field theories in dimensions lower than four in the context of the Wegner-Houghton renormalization group equations (WHRG). The renormalized trajectory makes a non-perturbative interpolation between the ultraviolet and the infrared scaling regimes. Strong indication is found that in two dimensions and below the models with polynomial interaction are always non-perturbative in ...

Treatment of polycythemia vera.

BACKGROUND AND OBJECTIVE Current guidelines for the management of patients with polycythemia vera (PV) derive from a few clinical trials and several uncontrolled clinical studies. The purpose of this paper is to critically review the available evidence in literature for selecting the best treatment in the single patient. METHODS The authors have been working in this field contributing origina...

Pathogenesis of polycythemia vera.

BACKGROUND AND OBJECTIVE Polycythemia vera (PV) is an acquired clonal myeloproliferative disorder characterized by increased production of mature red cells. We still lack a molecular target responsible for this disorder; however, recent investigations have focused on a number of molecules involved in signal transduction pathways mediated by erythropoietin (Epo) and other growth factors. Here we...

Muramidase in polycythemia vera.