Neural correlates of consciousness (NCCs) have been defined as neural systems and states of those systems, which are correlated with certain states of consciousness and which are minimally sufficient for these states of consciousness to occur. Here, it is discussed whether based on the identification of a NCC one may claim that this neural correlate causes the corresponding state of consciousne...

Boundary states corresponding to wrapped D-branes in Calabi-Yau compactifications of type II strings are discussed using Gepner models. In particular boundary conditions corresponding to D-0 branes and D-instantons in four dimensions are investigated. The boundary states constructed by Recknagel and Schomerus are analyzed in the light-cone gauge and the broken and conserved space-time supersymm...

We have studied ultrafast carrier dynamics in oxidized silicon nanocrystals (NCs) and the role that surface-related states play in the various relaxation mechanisms over a broad range of photon excitation energy corresponding to energy levels below and above the direct bandgap of the formed NCs. Transient photoinduced absorption techniques have been employed to investigate the effects of surfac...