The human visual system is capable of learning both abstract and specific mappings to underlie shape recognition. How could dissimilar shapes be mapped to the same location in visual representation space, yet similar shapes be mapped to different locations? Without fundamental changes, Chorus, like other single-system models, could not accomplish both mappings in a manner that accounts for recent evidence.
Studies with humans have failed to produce evidence that any direct causal relation exists between the asymmetry of one function in an individual and the asymmetry of a different function in that individual. Without such evidence, factors external to an individual's nervous system, such as social interactions, may play crucial roles in explaining the directions of all asymmetries at all levels.
From x-ray and neutron diffraction and magnetic susceptibility measurements, the PtMn phase with the CuAuI type structure is found to exhibit anti-ferromagnetic arrangement of the magnetic moments with spin quantum number 4/2 for the Mn atoms and 0 for the Pt atoms. The moments of nearest-neighbour Mn atoms in (001) planes are anti-parallel to each other, and the direction of the moments changes from parallel to c in alloys with 50 at. % Pt and less, to perpendicular to c with (...) more than 50 at. % Pt. Néel temperatures are observed in the range from 840° to 970°K. At lower temperatures the alloys show weak ferromagnetism which is believed to result from canting of the moments. (shrink)
This book collects essays from the 2006 and 2007 International Philosophy Colloquia Evian, centred around a central problem in the philosophy of mind: the relationship between the human faculty of sensory experience and the faculty of conceptual reflection, that is self-consciousness. Containing articles by philosophers of eight nationalities, in three languages (English, French, German), and of "analytical" as well as "continental" provenance, it beautifully represents the spirit of the colloquia. Authors include Joshua Andresen (AU Beirut), Valérie Aucouturier (Kent U (...) / U Paris I), Karin de Boer (KU Leuven), Santiago Echeverri (U Genève), Roberto Farneti (LU Bolzano), Tim Henning (JLU Giessen), Felix Koch (Columbia U), Christophe Laudou (Madrid), David Lauer (FU Berlin), Jason Leddington (Bucknell U), Nicolas Monseu (UC Louvain), Soraya Nour (HU Berlin), Hans Bernhard Schmid (U Wien), Henning Tegtmeyer (U Leipzig). (shrink)