[The evaluation of patients with ischemic cerebral lesions by CT, SPECT and qEEG in acute, subacute and chronic phases].

Introduction: SPECT, EEG AND CT scan offer information with several pathophysiologic meanings. Their results vary with time and according to the vascular affected territory.

Objective: We wanted to study how the sensibility varies and the relationship with the clinic of SPECT, qEEG and CT scan in the acute, subacute and chronic stages and according to the vascular affected territory.

Local rules for protein folding on a triangular lattice and generalized hydrophobicity in the HP model.

We consider the problem of determining the three-dimensional folding of a protein given its one-dimensional amino acid sequence. We use the HP model for protein folding proposed by Dill (1985), which models protein as a chain of amino acid residues that are either hydrophobic or polar, and hydrophobic interactions are the dominant initial driving force for the protein folding. Hart and Istrail (1996a) gave approximation algorithms for folding proteins on the cubic lattice under the HP model.

Recognizing circular decomposable metrics.

Circular decomposable metrics (CDMs) have been used in phylogenetic studies. The fastest algorithm for recognizing a CDM runs in time O(n5), given an n x n table of pairwise distances. We give an O(n2) time algorithm for this problem.

Numerical taxonomy on data: experimental results.

We consider the problem of fitting an n x n distance matrix D by a tree metric T. This problem is NP-hard for most reasonable distance functions between D and T. Recently, an approximation algorithm was presented (Agarwala et al.

A monoclonal antibody specifically modulates dihydropyridine-sensitive calcium current in BC3H1 myocytes.

The nonfusing muscle cell line BC3H1 expresses functional Na and Ca channels similar to those found in skeletal muscle (1). We have utilized a monoclonal antibody that cross-reacts with a 45-50-kDa glycoprotein in differentiated BC3H1 myocytes but not in cardiac or neuronal cells. This antibody, MAb1223, specifically modulates 45Ca influx and slowly activating, dihydropyridine-sensitive Ca currents when added to BC3H1 myocytes.