For n -point sets K in an LCA group Γ we obtain estimate for the norm of “the best” extension operator from space l∞(K) bounded functions on to A(Γ) Fourier transforms. As a simple consequence our implies that if is infinite closed subset then there does not exists linear C0(K) continuous vanishing at infinity A(Γ). The latter result generalises by Graham who considered case compact subsets K.

1. Lee, A.B. and Cooper. T.A. (1995) An improved direct PCR screen of bacterial colonies: wooden toothpicks inhibit PCR amplification. BioTechniques 18, 225226. 2. Ramchatesingh, J., Zahler, A.M., Neugebauer, K.M., Roth, M.B. and Cooper, T.A. (1995) A subset of SR proteins activates splicing of the cardiac troponin T alternative exon by direct interactions with an exonic enhancer (submitted) 3....

BACKGROUND Altered excitation-contraction (E-C) coupling in canine pacing-induced heart failure involves decreased sarcoplasmic reticulum (SR) Ca uptake and enhanced Na/Ca exchange, which could be expected to decrease SR Ca content (Ca(SR)) and may explain the reduced intracellular Ca (Ca(i)) transient. Studies in other failure models have suggested that the intrinsic coupling between L-type Ca...

We provide necessary and sufficient conditions for the space of smooth functions with compact supports $$C^\infty _c(\Omega )$$ to be dense in Musielak–Orlicz spaces $$L^\Phi (\Omega where $$\Omega $$ is an open subset $${\mathbb {R}}^d$$ . In particular, we prove that if $$\Phi satisfies condition $$\Delta _2$$ , closure )\cap L^\Phi equal only measure singular points zero. This extends earlie...

Interphase chromatin is arranged into topologically separated domains comprising gene expression and replication units through genomic sequence elements, so-called MAR or SAR regions (for matrix- or scaffold-associating regions). S/MAR regions are located near the boundaries of actively transcribed genes and were shown to influence their activity. We show that scaffold attachment factor B (SAF-...

BACKGROUND Glutathione has been implicated in growth factor-mediated chemoresistance of colon cancer cells. MATERIALS AND METHODS We evaluated the influence of hepatocyte growth factor, vascular endothelial growth factor and epidermal growth factor on the effect of 5-fluorouracil, oxaliplatin and SN-38 (the active metabolite of irinotecan) on WiDr cells. We also analysed the effect of glutath...

Given a pattern p = s1x1s2x2 · · · sr−1xr−1sr such that x1, x2, . . . , xr−1 ∈ {x, ← x}, where x is a variable and x its reversal, and s1, s2, . . . , sr are strings that contain no variables, we describe an algorithm that constructs in O(rn) time a compact representation of all P instances of p in an input string of length n, so that one can report those instances in O(P ) time. 1998 ACM Subje...

It is well established that excitation contraction (EC) coupling in cardiac myocytes is mediated by the entry of calcium ions (Ca 2 ) from the bathing medium into the cell cytoplasm (Fabiato, 1985), which then triggers calcium-induced calcium release (CICR) from the sarcoplasmic reticulum (SR). More recently, it was proposed that a second, quite separate, EC-coupling process, mediated by an eff...

It is well established that excitation contraction (EC) coupling in cardiac myocytes is mediated by the entry of calcium ions (Ca 2 ) from the bathing medium into the cell cytoplasm (Fabiato, 1985), which then triggers calcium-induced calcium release (CICR) from the sarcoplasmic reticulum (SR). More recently, it was proposed that a second, quite separate, EC-coupling process, mediated by an eff...