Showing 1 - 10 of 10
Based on a five-letter model of the 20 amino acids, we propose a new 3-D graphical representation of protein sequence. Then we derive from the graphical representation, numerical indices called 3-D coupling numbers, to characterize protein sequences. The examination of the...
Persistent link: https://www.econbiz.de/10011060126
In this work we investigate critical aging properties of the two-dimensional spherical model with the long-range interaction, which decays at large distances r by a power-law as r−3. The model with an arbitrary initial order m0 is quenched from a very high temperature to the critical...
Persistent link: https://www.econbiz.de/10011058245
We study the phase diagram of the anisotropic ferromagnetic Heisenberg model on a square lattice. We use the double-time Green’s function method within the Callen decoupling approximation. The dependence of the Curie temperature Tc on the spin S and on the anisotropy parameter Δ (Δ=0 and 1...
Persistent link: https://www.econbiz.de/10011062155
This work is devoted to the study of the relation between intermittence and scale invariance. We find the conditions that a function in which both effects are present must satisfy, and we analyze the relation with characteristic scales. We present an efficient method that detects characteristic...
Persistent link: https://www.econbiz.de/10010874659
This work is devoted to the study of the relation between intermittence and scale invariance, and applications to the behavior of financial indices near a crash. We developed a numerical analysis that predicts the critical date of a financial index, and we apply the model to the analysis of...
Persistent link: https://www.econbiz.de/10010874823
Self-organized networks are pervasive in communication systems such as the Internet, overlay networks, peer-to-peer networks, and cluster-based services. These networks evolve into complex topologies, under specific driving forces, i.e. user demands, technological innovations, design objectives...
Persistent link: https://www.econbiz.de/10011057039
This work is devoted to the study of the Asian crisis of 1997, and its consequences on emerging markets. We have done so by means of a phase transition model. We have analyzed the crashes on leading indices of Hong Kong (HSI), Turkey (XU100), Mexico (MMX), Brazil (BOVESPA) and Argentina...
Persistent link: https://www.econbiz.de/10010873570
This work is devoted to the study of the statistical properties of financial indices from developed and emergent markets.
Persistent link: https://www.econbiz.de/10010874901
Different sleep stages are associated with distinct dynamical patterns in EEG signals. In this article, we explored the relationship between the sleep architecture and fractal dimension (FD) of sleep EEG. In particular, we applied the FD analysis to the sleep EEG of patients with obstructive...
Persistent link: https://www.econbiz.de/10010872606
A subgrid scale two-phase second-order-moment (SGS-SOM) model based on the two-fluid continuum approach is presented for the analysis of the instantaneous flow structures of swirling and non-swirling coaxial-jet particle-laden turbulence flows. Since the interaction between the two-phase subgrid...
Persistent link: https://www.econbiz.de/10010590862