76 citations · 426 across the 15 of their papers we have counts for
15 papers
Fluctuations of company yearly profits versus scaled revenue: Fat tail distribution of Levy type
H. E. Roman, R. A. Siliprandi, C. Dose +2
We analyze annual revenues and earnings data for the 500 largest-revenue U.S. companies during the period 1954-2007. We find that mean year profits are proportional to mean year re…
Looking at structure, stability, and evolution of proteins through the principal eigenvector of contact matrices and hydrophobicity profiles
Ugo Bastolla, Markus Porto, H. Eduardo Roman +1
We review and further develop an analytical model that describes how thermodynamic constraints on the stability of the native state influence protein evolution in a site-specific m…
Lack of self-averaging in neutral evolution of proteins
Ugo Bastolla, Markus Porto, H. Eduardo Roman +1
We simulate neutral evolution of proteins imposing conservation of the thermodynamic stability of the native state in the framework of an effective model of folding thermodynamics.…
Asset-asset interactions and clustering in financial markets
G. Cuniberti, M. Porto, H. E. Roman
The collective phenomena of a liquid market is characterized in terms of a particle system scenario. This physical analogy enables us to disentangle intrinsic features from purely…
Multifractal behavior of linear polymers in disordered media
A. Ordemann, M. Porto, H. E. Roman +2
The scaling behavior of linear polymers in disordered media modelled by self-avoiding random walks (SAWs) on the backbone of two- and three-dimensional percolation clusters at thei…
Electron-phonon interaction in C70
D. Provasi, N. Breda, R. A. Broglia +3
The matrix elements of the deformation potential of C are calculated by means of a simple, yet accurate solution of the electron-phonon coupling problem in fullerenes, based…