La mise en Ïuvre des fluides supercritiques est d'un intŽrt croissant dans de nombreux domaines : pour la sŽparation (sŽparation et purification en pŽtrochimie, industrie alimentaire) et la chromatographie par fluides supercritiques (sŽparation analytique et prŽparatoire, dŽtermination des propriŽtŽs physicochimiques), comme milieux rŽactifs aux propriŽtŽs continžment ajustables allant du gaz ...

New ruthenium complexes containing enantiopure 2,6-bis[4'(R)-phenyloxazolin-2'-il-pyridine] ((R,R)-Ph-pybox), 2,6-bis[4'(S)-isopropyloxazolin-2'-il-pyridine] ((S,S)-(i)Pr-pybox) or 2,6-bis[4'(R)-isopropyloxazolin-2'-il-pyridine] ((R,R)-(i)Pr-pybox) and water soluble 1,3,5-triaza-7-phosphaadamantane (PTA) or N-substituted PTA phosphanes have been synthesized in high yields and fully characterize...

PURPOSE The aim of this study was to investigate the effect of self-paced active recovery (AR) and passive recovery (PR) on blood lactate removal following a 200 m freestyle swimming trial. PATIENTS AND METHODS Fourteen young swimmers (with a training frequency of 6-8 sessions per week) performed two maximal 200 m freestyle trials followed by 15 minutes of different recovery methods, on separ...

Osmotin-like protein (OLP) is a neutral isoform in the group 5 pathogenesis-related (PR) tobacco proteins. The OLP gene, like the basic PR protein genes, is constitutively expressed in tobacco roots and cultured cells. OLP is not naturally present in intact healthy leaves, but ethylene treatment induces a high accumulation there. To study the mechanism of OLP gene expression as induced by ethyl...

A matrix A is said to be partition regular (PR) over a subset S of the positive integers if whenever S is finitely coloured, there exists a vector x, with all elements in the same colour class in S, which satisfies Ax = 0. We also say that S is PR for A. Many of the classical theorems of Ramsey Theory, such as van der Waerden’s Theorem and Schur’s Theorem, may naturally be interpreted as statem...

D(t) = max x,y∈Ω ‖K(x, ·)−K(y, ·)‖TV ≤ 2 max x∈Ω ‖K(x, ·)− π‖TV = 2∆(t). Let X0 = x and Y0 = y. By the coupling lemma, there exists a coupling of K (x, ·) and K(y, ·) so that Pr[Xt 6= Yt] = ‖K(x, ·)−K(y, ·)‖TV = Dxy(t). Then for s ≥ 1, we construct a coupling of Xt+s and Yt+s as follows: • If Xt = Yt, then Xt+i = Yt+i for i = 1, ..., s. • If Xt = x′ and Yt = y′ where x′ 6= y′, then by the coupl...

The boundary layer fluid flow in a channel with heat source, soret effects and slip condition was studied. The governing equations were solved using perturbation technique. The effects of different parameters such Prandtl number Pr , Hartmann number M, Schmidt number Sc, suction parameter  , soret number Sr and the heat source s on velocity, temperature and concentration were studied. Numerica...

The past decades have witnessed a dramatic change in agric��t�re with ���d pr�d�c� ti�n s�aring d�e t� the Green Rev���ti�n. The Green Rev���ti�n entai�ed the �se �� impr�ved techn���gies (partic��ar�y the breeding �� high yie�ding ���d cr�p varie� ties), the expansi�n �� irrigati�n, mechaniza� ti�n, specia�izati�n, and the �se �� chemica� �erti�izers and pesticides. Whi�e the Rev���� ti�n �ed ...

The classical Erdős–Littlewood–Offord theorem says that for nonzero vectors a1,…,an∈Rd, any x∈Rd, and uniformly random (ξ1,…,ξn)∈{−1,1}n, we have Pr(a1ξ1+⋯+anξn=x)=O(n−1/2). In this paper, show Pr(a1ξ1+⋯+anξn∈S)≤n−1/2+o(1) whenever S is definable with respect to an o-minimal structure (e.g., holds when algebraic hypersurface), under the necessary condition it does not contain a line segment. We...

let $d$ be an integral domain and $star$ a semistar operation stable and of finite type on it. we define the semistar dimension (inequality) formula and discover their relations with $star$-universally catenarian domains and $star$-stably strong s-domains. as an application, we give new characterizations of $star$-quasi-pr"{u}fer domains and um$t$ domains in terms of dimension ine...