Selective involvement of the right dorsal occipital stream for the spatial processing of sounds in early blind subjects

in Journal of Cognitive Neuroscience (2010), 22(Suppl. 1),

A Selective Move Generator for the Game Axis and Allies

in Computational Intelligence and Games (2010)

We consider the move generation in a modern board game where the set of all the possible moves is too large to be generated. The idea is to provide a set of simple abstract tactics that would allow enough ... [more ▼]

We consider the move generation in a modern board game where the set of all the possible moves is too large to be generated. The idea is to provide a set of simple abstract tactics that would allow enough combinations to provide strong opposition. The reduced search space is then traversed using the alpha beta search. We also propose a technique that allows us to remove the stochasticity from the search space. The model was tested in a game called Axis and Allies: a modern, turn-based, perfect information, non-deterministic, strategy board game. We first show that a tree search technique based on a restrained set of moves can beat the actual scripted AI engine --- E.Z. Fodder. We can conclude from the experiments that searching deeper generates complex maneuvers which in turn significantly increase the likelihood of victory. [less ▲]

Selective pancreatic ATP-sensitive potassium channel openers for the treatement of glucose homeostasis disorders

in Drugs of the Future (2006), 31

Selective reduction of C = C double bonds in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry of microcystins

in European Journal of Mass Spectrometry (Chichester, England) (2010), 16(1), 91-9

Cyanobacteria are photosynthetic bacteria encountered in various aquatic environments. Some of them are able to produce powerful toxins called cyanotoxins. Among cyanotoxins, microcystins (MCs) constitute ... [more ▼]

Cyanobacteria are photosynthetic bacteria encountered in various aquatic environments. Some of them are able to produce powerful toxins called cyanotoxins. Among cyanotoxins, microcystins (MCs) constitute a group of closely related cyclic heptapeptides. Their sequences are made up of classical amino acids as well as post- translational modified ones. Interestingly, in vivo metabolism of microcystins seems to be greatly dependent on various minor structural differences and particularly those of the seventh amino acid, which can be either dehydroalanine (or a derivative), dehydroaminobutyric acid (or a derivative), serine or alanine. As a consequence, microcystins have been classified on the basis of the nature of this singular amino acid. A major difficulty in the classification of such toxins is that some of them share the same molecular masses and the same molecular formulas. Consequently, a simple mass measurement is not sufficient to determine the structure and the class of a toxin of interest. Heavy and expensive techniques are used to classify them, such as multi-dimensional nuclear magnetic resonance and amino acid analysis. In this work, a new matrix-assisted laser desorption/ionization time-of-flight method leading to an easy classification of MCs is proposed. The methodology relies on the reductive properties of the matrix 1,5-diaminonaphtalene (1,5-DAN) which appears to be able to selectively reduce the double carbon-carbon bond belonging to the seventh amino acid. Moreover, the yield of reduction seems to be influenced by the degree of substitution of this double bond, allowing a discrimination between dehydroalanine and dehydroaminobutyric acid. This selective reduction was confirmed by the study of three synthetic peptides by mass spectrometry and tandem mass spectrometry. According to these results, the use of reductive matrices seems to be promising in the study of microcystins and in their classification. More generally, 1,5-DAN allows the selective reduction of double carbon-carbon bonds. This property could also be employed in the characterization of others types of compound displaying double bonds (petrochemistry, metabolomics....). [less ▲]

Selective transfer of persistent organic pollutants and their metabolites in grey seals during lactation

in Environment International (2012), 46

Selectivity enhancement for the CE enantioseparation of uncharged compounds using mixtures of cationic and anionic cyclodextrin derivatives

Poster (2002)

Selectivity improvement in the capillary electrophoretic enantioseparation of uncharged compounds by use of mixtures of charged and neutral cyclodextrins

Poster (1998)

Selectivity lists of pesticides to beneficial arthropods for IPM programs in carrot--first results.

in Communications in agricultural and applied biological sciences (2005), 70(4),

Le sélénium dans la reproduction des oiseaux

in Annales de Médecine Vétérinaire (2006), 150(4), 203-211

Selenium is a trace element of importance for antioxidant defence in birds. It is essential for the correct selenoprotein functions implicated in many physiological processes. So, glutathione peroxidase ... [more ▼]

Selenium is a trace element of importance for antioxidant defence in birds. It is essential for the correct selenoprotein functions implicated in many physiological processes. So, glutathione peroxidase plays a central role in the antioxidant defence of the cells owing to its capacity to eliminate free radicals and to the sparing effect on other cell antioxidants. Embryo tissues and spermatozoa are particularly sensitive to oxidative attacks due to their high content in polyunsaturated fatty acids. They require thus an efficient antioxidant system during the reproduction period. A dietary selenium deficiency results in many reproduction disorders, such as, decreases of fertility and of hatchability of fertile eggs. On the other hand, excess of selenium is toxic. There is, however, a large difference between toxic dose and minimal requirements for adequate reproduction processes. Dietary selenium supplementation is thus considered as a major measure to improve reproduction parameters. [less ▲]

Selenium enriched winter barley for fattening bulls : animal performance and plasma metabolites

in Proceedings of the British Society of Animal Science (2004)