Un enfant de 12 ans atteint d'un lymphome medias­tinal a ete hospitalise pour des manifestations neurolo­giques comportant: facies myasthenique, douleurs radi­culaires intenses, amyotrophie et diminution de la force musculaire au niveau des membres.  A l'examen du liquide cephalo-rachidien, ii existait une meningite neoplasique. Celle-ci a ete traitee par le methotraxate intra-rachidien parall...

accurate and nondestructive methods to determine individual leaf areas of plants are useful tools in physiological and agronomic research. a determination of the individual leaf area (la) of such species in brassicaceae family as red cabbage (brassica oleracea var. cappitata l. f. rabra), cabbage (brassica oleracea var. cappitata l. f. alba) and broccoli (brassica oleracea var. italica l.) ...

The mechanism by which bi-and trivalent cations affect human liver phosphatidatephosphohydrolase (PAP) activity was investigated. Bivalent cations up to 1 mM increased PAP activity whereas at higher concentrations the activity of the enzyme decreased. The stimulatory concentration for trivalent cations such as Al3+ and Cr3+, however, was much lower being 2 m M and 1 m M, respectively. All catio...

in the present work, impact of lewis acid (la) catalysts bf3, bcl3, and bbr3 on the kinetics andregioselectivity of 1,3-dipolar cycloaddition (1,3-dc) reaction between azidobenzene and acroleinwas theoretically studied using b3lyp/6-31g* level. our results indicate while the uncatalyzed 1,3-dc reaction under investigation takes place via a non-polar, non-regioselective, and lowasynchronous proc...

la reine morte  fut écrite par montherlant en 1942. elle met en scène une reprise d'un drame historique intitulé «régner après sa mort» de l'auteur espagnol luis vélez de guevara (1579-1644). beaucoup plus différente en détail, la pièce de montherlant comprend les conflits des protagonistes, à savoir ferrante le roi du portugal, don pedro son fils et sa belle-fille inès de castro. elle aboutit ...