A team of editors have selected important and interesting compounds which have appeared in the literature since publication of volume 8. Volume 9 contains approximately 1200 compounds which are mostly new entries, plus a selection of data on compounds already listed in volumes 1-8. This represents literature coverage to mid-1995 and extends the range of the Dictionary of Inorganic Compounds to over 50,000 compounds

The mental representations of perceptual and cognitive stimuli vary on many dimensions. In addition, because of quantal fluctuations in the stimulus, spontaneous neural activity, and fluctuations in arousal and attentiveness, mental events are characterized by an inherent variability. During the last several years, a number of models and theories have been developed that explicitly assume the appropriate mental representation is both multidimensional and probabilistic. This new approach has the potential to revolutionize the study of perception and cognition in the same way that signal...