Acte IV

Équipe Art et Sciences de l'Institut ACTE

Située sur un axe de recherche associant l’art avec les sciences exactes, les sciences naturelles et les sciences politiques, l’équipe Art & Sciences de l’Institut ACTE dirigée par Olga Kisseleva et Richard Conte, se propose de développer, d’analyser et de promouvoir les projets collaboratifs élaborés conjointement par les scientifiques et les artistes. La ligne de recherche fédère les initiati...

Éditorial: Le jeune Bianco aux prises avec un texte, acte 1

Sectional Anatomy Quiz IV

In this series we present a quiz about identification of salient and important anatomical landmarks present at a given level on the computed tomography (CT) image. The representative image is followed by further images showing examples of various commonly encountered pathologies that can be seen at this level in clinical practice. Readers are expected to identify highlighted structures in all t...

Ion Exchange Column Performance Model for Separation of Zr(IV) and Hf(IV) in Elution Process

A mathematical model of sorption of Zirconium and Hafnium cations mixture and elution of these ions from a cation exchange resin bed is developed. Sulfuric acid is selected as the eluent for selective separation of Zr and Hf in a packed bed of Dowex cation exchange resin. The column model is a dispersed plug flow model,and assumed to consist of randomly packed synthetic and spherical resin ...

Inhibition of human cytochrome P450 2E1 by nicotine, cotinine, and aqueous cigarette tar extract in vitro.

Cigarette smoke is a complex mixture containing, among other chemicals, pyridine alkaloids and N-nitrosamines. Carcinogenic tobacco-specific N-nitrosamines, N-nitrosodimethylamine (NDMA) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), are both activated by cytochrome P450 (CYP) 2E1 in rats. Previous reports indicate that nicotine and the main nicotine metabolite, cotinine, reduce the ...