Athènes en 88/7 av. J. -C.

Npgrj_nn_1913 887..895

The receptive fields of neurons in primary visual cortex that are inactivated by retinal damage are known to ‘shift’ to nondamaged retinal locations, seemingly due to the plasticity of intracortical connections. We have observed in cats that these shifts occur in a pattern that is highly convergent, even among receptive fields that are separated by large distances before inactivation. Here we s...

Dmd050591 878..887

The absorption, metabolism, and excretion of (2R,3R,4R)-4-hydroxy2-(hydroxymethyl)pyrrolidin-3-yl 4-O-(6-deoxy-b-D-glucopyranosyl)a-D-glucopyranoside (CS-1036), a novel and potent pancreatic and salivary a-amylase inhibitor, were evaluated in F344/DuCrlCrlj rats and cynomolgus monkeys. The total body clearance and volume of distribution of CS-1036 were low (2.67–3.44 ml/min/kg and 0.218–0.237 l...

Evaluation of the analysis of distance sampling data: a simulation study Utvärdering av avståndsanalys av inventeringsdata: en simuleringsstudie

Distance sampling is a biological survey method aimed to provide estimates of density and number of individuals in the sampled area. The method can be applied to point and line transects for a wide variety of systems and species (Sutherland 1996). In addition to recording the number of individuals and species identity, one also registers the distance between each identified individual and the l...

Dr. C. J. C. Earl

A C&EN Feature

O f the 103 known elements, 83 are classified as metals. Much of the chemistry of this very large and diverse family of elements is the chemistry of metals as ions in solution. This includes some of those most familiar of all chemical reactions that we meet in our first introduction to chemistry: the precipitation of halides as their silver salts for identification; the changes of color of copp...