The barbiturates tested in this work (barbital, phenobarbital, thiopental and pentobarbital) modify the partition of synaptosomes in a Dextran T500-poly(ethylene glycol) 4000 two-phase system. Under adequate experimental conditions, the drugs increase the partition into the upper phase and this effect appears to be due to an action on the biological material and not on the interface potential o...

1 Context Nowadays, numerical simulations model increasingly complex phenomena. They require deeply coupled multi-physics codes that are designed to run on large distributed memory computers. On these kinds of architecture, data decomposition is critical to achieve good performance. While distributing the data between the processes, two challenges must be addressed: balancing the workload betwe...

In the study of the asymptotic behavior of polynomials from partition theory, the determination of their leading term asymptotics inside the unit disk depends on a sequence of sets derived from comparing certain complexvalued functions constructed from polylogarithms, functions defined as

Preparative-scale separation of substituted anthraquinones by multiple liquid-liquid partition was studied using isopropylmethyl ketone (IMK)/aqueous phosphate buffer (aq.) as the solvent system and the Hietala apparatus with 100 partition units as the partition equipment. The lower (aq.) phase was chosen as mobile, while the upper (IMK) phase remained stationary. Hence, the principle of stepwi...

TSQL2 is a query language designed for temporal databases. In TSQL2, the GROUP BY clause has the temporal grouping property. In temporal grouping, the time line of each attribute value is partitioned into several sections, and aggregate functions are computed for each time partition. This paper describes two parallel algorithms, data-partition and group-partition, which compute temporal aggrega...

We study a phase transition in a non-equilibrium model first introduced in [5], using the Yang-Lee description of equilibrium phase transitions in terms of both canonical and grand canonical partition function zeros. The model consists of two different classes of particles hopping in opposite directions on a ring. On the complex plane of the diffusion rate we find two regions of analyticity for...

2. The dissolved-phase fraction (fdissolved) is a function of the characteristics and level of suspended solids and dissolved organic matter, which may be estimated from the following relationship, where [SS] is suspended solid content, [DOC] is DOC concentration, kd is partition coefficient between the dissolved phase and the suspended solids, and kDOC is the partition coefficient between the ...