Attention can select elements of spatially extended objects and group them into coherent representations, but the processes responsible for object-based attention have remained unclear. Shape-selective neurons in higher areas of the visual cortex could contribute to object-based attention by providing feedback to lower areas to enhance the representation of image elements that belong to a relev...

Several approaches to implementing symbol-like representations in neurally plausible models have been proposed. These approaches include binding through synchrony (Shastri & Ajjanagadde, ), "mesh" binding (van der Velde & de Kamps, ), and conjunctive binding (Smolensky, ). Recent theoretical work has suggested that most of these methods will not scale well, that is, that they cannot encode stru...

Though lithium-induced neurotoxicity usually occurs when serum lithium exceeds 2.0 mEq/1, reports document its occurrence with serum lithium within the therapeutic range (Strayhorn and Nash 1977, Hansen and Amidsen, 1978, Speirs and Hirsch 1978, West and Meltzer 1979). Neurotoxicity has even been described with serum lithium between 0.4 and 0.5 mEq/1 (Hansen and Amidsen 1978). Such may best be ...

objective: vancomycin-resistant enterococci (vre) have emerged worldwide and have become an increasing problem in clinical settings. acquired glycopeptide resistance in enterococcus species is due to the acquisition of van a, van b, van d, van c and van e genes, resulting in the production of peptidoglycan precursors with reduced affinity for glycopeptide antibiotics. the origin of these van ge...

in this study a simple and general chemical association theory is introduced. the concept of infinite equilibrium model is re-examined and true mole fractions of associated species are calculated. the theory is applied to derive the distribution function of associated species. as a severe test the application of presented theory to the van der waals mixture model is introduced in order to perfo...

"Again this year, we were impressed with the variety and quality of the projects undertaken by the winning companies,” said George Vander Velde, Director of the Waste Management and Research Center. “These businesses and organizations have proven that pollution prevention makes good sense for the environmental and economic health of Illinois. They have achieved their pollution prevention goals ...