Novel Cr(iii) catalysts supported by linear phosph(iii)azanes of the type R(1)R(2)N-P(Ph)-NR(3)-P(Ph)-NR(4)R(5) have been prepared, all of which, upon activation with MMAO-3A, are highly active for ethene tri-/tetramerization with considerable selectivity. The effect of ligand substitution as well as solvent on the catalytic performance has been examined.

We are presenting the synthesis of a phenylene ethynylene-based rod containing an Fmoc protected amino group and an activated acid which can be applied to peptide couplings. This linear amino acid analogue is applied to the synthesis of di-, tri- and pentamers. The pentamer has a molecular mass of 6.5 kDa and is characterized by (1)H NMR spectroscopy and MALDI-TOF MS. The method has potential f...

In this paper, a collocation approach is employed for the solution of the one-dimensional telegraph equation based on cubic B-spline. The derived method leads to a tri-diagonal linear system. Computational efficiency of the method is confirmed through numerical examples whose results are in good agreement with theory. The obtained numerical results have been compared with the results obtained b...

In this work, we show that the magneto-inductive (MI) indoor localization using tri-axial coils possesses unique advantages over the RF-based techniques. The spatial distribution of a generated magnetic field strength can be easily predicted using simple linear models. In addition, the field strength is very stable over time, even in the presence of moving people, which makes MI localization a ...

The advantages of triple-site ventricular pacing (Tri-V) compared to conventional biventricular site pacing (Bi-V) have been reported. We sought to identify the predictors of acute hemodynamic Tri-V responders. Acute hemodynamic studies were performed in 32 patients with advanced heart failure during Tri-V implantation. After the right ventricular (RV) and left ventricular (LV) leads were impla...

A growing body of evidence now supports the use of transradial percutaneous intervention (TRI) as the preferred access site for the treatment of patients with ST-segment elevation myocardial infarction (STEMI). Historically, TRI has been avoided in the STEMI population due to concerns over longer procedure time, longer door-to-device time, higher crossover rates, and the experience level requir...

Some important trends in geometric modeling are the reliance on solid models rather than surface-based models and the enhancement of the expressive power of models, by using free-form objects in addition to the usual geometric primitives and by incorporating physical principles. An additional trend is the emphasis on interactive performance. In this paper we integrate all of these requirements ...

A physiologically based pharmacokinetic model was used to amalgamate information obtained in rats and man by various routes of exposure to trichloroethylene (TRI) and tetrachloroethylene (TETRA). Since there have been no pharmacokinetic data on drinking water exposure, drinking water exposure to TRI was conducted in rats using 14C-TRI. Several partition coefficients of TRI and TETRA were also d...

In many cancer cells the alteration of glycosylation processes leads to the expression of cryptic carbohydrate moieties, which make them good targets for immune intervention. Identification of cancer-associated glycotopes as well as progress in chemical synthesis have opened up the way for the development of fully synthetic immunogens that can induce anti-saccharide immune responses. Here, we s...

A TPCA (tri-valued programmable cellular automata) is proposed in this paper. Implemented based on TOC (Ternary Optical Computer) the TPCA has three advantages over other automata, that is the high programmability, the parallelism of computing and the tri-valued logic implementation. The programmability means that the transformation rules of each cell in CA can be modified at will and be any fu...