Optically active halogenated arenes containing stereogenic benzylic alcohol reacts with [CpRu(CH3CN)3][PF6] to give the major diastereomer 90% de, in which metal center is preferentially placed on one face of arene ring. Thus starting (S)-1-(2-chlorophenyl)ethanol complex (pS, S)-[CpRu(HO(CH3)CH-C6H4-Cl)][PF6] S)-1 was obtained good yield, while (R)-alcohol provided (pR, R)-[CpRu(HO(CH3)CH-C6H4...

Depuis 1980, les politiques publiques suisses préconisent une utilisation rationnelle du sol afin d’éviter de consommer des espaces agricoles pour accueillir le développement urbain. Dans cette perspective, canton Genève a modifié en 2013 sa législation densifier zones résidentielles pavillonnaires. Cette pression urbaine s’est faite au détrim...

This paper presents sufficient conditions for the design of strictly positive real (SPR), fixed-order dynamic compensators. The primary motivation for designing SPR compensators is for application to positive real (PR) plants. When an SPR compensator is connected to a PR plant in a negative feedback configuration, the closed loop is guaranteed stable for arbitrary plant variations as long as th...

This paper presents sufficient conditions for the design of strictly positive real (SPR), fixed-order dynamic compensators. The primary motivation for designing SPR compensators is for application to positive real (PR) plants. When an SPR compensator is connected to a PR plant in a negative feedback configuration, the closed loop is guaranteed stable for arbitrary plant variations as long as th...

Abordant la prévision macroéconomique sous l’angle de scientificité qu’on lui prête, ce texte met en lumière certaines ses propriétés tant que processus production. D’abord, celui-ci ne repose pas exclusivement sur l’utilisation modèles économétriques, mais s’inscrit dans une division plus large du travail d’e...

In this paper, we des cr i be what we cons i der t o be t he es s ent i al s uppor t for i nt er act i ve t ool s , i n an open envi r onment . The next s ect i on pr opos es an ext ens i bl e ar chi t ect ur e t hat cover s mos t as pect s t hat t ool s and appl i cat i ons ar e concer ned wi t h. The f ol l owi ng s ect i on des cr i bes a r unt i me s ys t emf or C++that s uppor t s our i nt...

electronic effects were investigated on the singlet–triplet energy gaps of divalent unsaturated seven- membered ring r2c6h6m (m=c, si, ge, sn, pb, r= –h, -ch3, i-pr , t-bu) at b3lyp/6-311++g** level. all the triplet states of r2c6h6c were more stable than the related the singlet states while all the singlet states of r2c6h6m (m= si, ge, sn, pb, r= –h, -ch3, i-pr , t-bu) were more stable than th...

Mature, fully active human immunodeficiency virus protease (PR) is liberated from the Gag-Pol precursor via regulated autoprocessing. A chimeric protease precursor, glutathione S-transferase-transframe region (TFR)-PR-FLAG, also undergoes N-terminal autocatalytic maturation when it is expressed in Escherichia coli. Mutation of the surface residue H69 to glutamic acid, but not to several neutral...

It should now be beyond doubt that blastocyst culture results in better pregnancy rate (PR). This calls for fewer embryos to be transferred, and indeed blastocyst culture is of most value when the intention is to put back one embryo at a time. The PR with one top-grade blastocyst is 45-65% in different studies. If two top-grade blastocysts are transferred, the PR usually does not differ, but th...

Expression of progesterone receptor (PR) mRNA in granulosa cells of ovarian preovulatory follicles is induced by LH (1, 2) and is essential for ovulation (3). Although 17beta-estradiol (E) can induce PR mRNA and activate PR promoter-reporter constructs in other cell types, the effects of E in granulosa cells appear to be indirect. We show herein that E alone does not induce the expression of PR...