On banach spaces of absolutely and strongly convergent fourier series. II

Catecholamines Stimulate Steroid Secretion of Dispersed Fowl Adrenocortical Cells. Acting Through the β-Receptor Subtype

“…The animals were decapitated, and their adrenal glands promptly removed. Glands were minced and stored in ice-cold Krebs-Ringer bicarbonate buffer with 0.2 % glucose (KRBG) and dispersed cells were obtained by sequential coilagenase digestion and mechanical disaggregation (6). Dispersed cells were then collected and adrenocortical cells were separated from chromaffin cells on a preformed continuous density Percoll gradient, as described by Kocsis et al (7).…”

Strong boundedness, strong convergence and generalized variation

“…Extending Hardy-Littlewood's concept of strong (C, 1) summability to Cesàro methods (C, α) of order α ≥ 0, Hyslop [8] arrived at his notion of strong convergence. Subsequently, this was successfully applied to the study of trigonometric series in several papers written by N. Tanović-Miller and her co-workers [16,17,18,13,14]. Strong convergence of trigonometric series attracts attention because of its position between ordinary and absolute convergence [4,16,17].…”