Homeland Security and Terrorism in Selected European States

In the wake of the 9/11 attacks on the United States, the responses to terrorism increased throughout the world. The face of Homeland Security is now heavily focused on the prevention, preparedness, response and recovery of terrorist attacks not only in the United States, but also amongst some of America\u27s oldest allies. This thesis studies the level of change in homeland security strategy of European NATO members after the 9/11 attacks in the United States. The analysis of strategic components within each NATO member\u27s homeland security strategy (history, laws, counterterrorism agencies and budget support) shows significant change. The international community\u27s perspective and role in terrorism and homeland security strategy can be an important component toward the safety and security in the United States. Terrorism\u27s influence on homeland security programs abroad is evidence that its successful mitigation and defeat will be contingent upon international cooperation and strategy

Superconductivity on the density wave background with soliton-wall structure

Superconductivity (SC) may microscopically coexist with density wave (DW) when the nesting of the Fermi surface (FS) is not perfect. There are, at least, two possible microscopic structures of a DW state with quasi-particle states remaining on the Fermi level and leading to the Cooper instability: (i) the soliton-wall phase and (ii) the small ungapped Fermi-surface pockets. The dispersion of such quasi-particle states strongly differs from that without DW, and so do the properties of SC on the DW background. The upper critical field $H_{c2}$ in such a SC state strongly increases as the system approaches the critical pressure, where superconductivity first appears. $H_{c2}$ may considerably exceed its typical value without DW and has unusual upward curvature as function of temperature. The results obtained explain the experimental observations in layered organic superconductors (TMTSF)$_{2}$PF$_{6}$ and $\alpha$-(BEDT TTF)$_{2}$KHg(SCN)$_{4}$.Comment: 7 page

Percolation in deposits for competitive models in (1+1)-dimensions

The percolation behaviour during the deposit formation, when the spanning cluster was formed in the substrate plane, was studied. Two competitive or mixed models of surface layer formation were considered in (1+1)-dimensional geometry. These models are based on the combination of ballistic deposition (BD) and random deposition (RD) models or BD and Family deposition (FD) models. Numerically we find, that for pure RD, FD or BD models the mean height of the percolation deposit $\bar h$ grows with the substrate length $L$ according to the generalized logarithmic law $\bar h\propto (\ln (L))^\gamma$, where $\gamma=1.0$ (RD), $\gamma=0.88\pm 0.020$ (FD) and $\gamma=1.52\pm 0.020$ (BD). For BD model, the scaling law between deposit density $p$ and its mean height $\bar h$ at the point of percolation of type $p-p_\infty \propto \bar h^{-1/\nu_h}$ are observed, where $\nu_h =1.74\pm0.02$ is a scaling coefficient. For competitive models the crossover, %in $h$ versus $L$ corresponding to the RD or FD -like behaviour at small $L$ and the BD-like behaviour at large $L$ are observed.Comment: 8 pages,4 figures, Latex, uses iopart.cl

Quantum interference and electron-electron interactions at strong spin-orbit coupling in disordered systems

Transport and thermodynamic properties of disordered conductors are considerably modified when the angle through which the electron spin precesses due to spin-orbit interaction (SOI) during the mean free time becomes significant. Cooperon and Diffusion equations are solved for the entire range of strength of SOI. The implications of SOI for the electron-electron interaction and interference effects in various experimental settings are discussed.Comment: 4 pages, REVTEX, 1 eps.figure Submitted to Phys. Rev. Let

Δημοσίευση του διορισμού του Πάνου Κουρτζή ως Υποπροξένου Γερμανίας στην εφημερίδα του Γερμανικού Κράτους

Φύλλο της Εφημερίδας του Γερμανικού Κράτους στο οποίο ανακοινώνεται ο ορισμός του Πάνου Μ. Κουρτζή ως υποπροξένου Γερμανίας με δικαιοδοσία επί της νήσου Μυτιλήνης.Το τεκμήριο βρίσκεται σε κακή κατάστασ

Homeland security and terrorism in selected European states

In the wake of the 9/11 attacks on the United States, the responses to terrorism increased throughout the world. The face of Homeland Security is now heavily focused on the prevention, preparedness, response and recovery of terrorist attacks not only in the United States, but also amongst some of America’s oldest allies. This thesis studies the level of change in homeland security strategy of European NATO members after the 9/11 attacks in the United States. The analysis of strategic components within each NATO member’s homeland security strategy (history, laws, counterterrorism agencies and budget support) shows significant change. The international community’s perspective and role in terrorism and homeland security strategy can be an important component toward the safety and security in the United States. Terrorism’s influence on homeland security programs abroad is evidence that its successful mitigation and defeat will be contingent upon international cooperation and strategy