BACKGROUND Electrical mapping studies indicate an interval of 40 to 100 ms between a defibrillation shock and the earliest activation that propagates globally over the ventricles (globally propagated activation, GPA). This study determined whether activation occurs during this interval but propagates only locally before being blocked (locally propagated activation, LPA). METHODS AND RESULTS I...

Connections between nodes of fully connected neural networks are usually represented by weight matrices. In this article, functional transfer matrices are introduced as alternatives to the weight matrices: Instead of using real weights, a functional transfer matrix uses real functions with trainable parameters to represent connections between nodes. Multiple functional transfer matrices are the...

Source (months) Serially propagated, long-term: 11ni iMii embryonal intestinal epithelium (Henle) (29) 35 Human liver (Chang) (6) 43 Human conjunctiva (Chang) (6) 43 Human carcinoma of nasopharynx (KB) (Eagle) (15) 36 Serially propagated, recently isolated: Human thymus (Foley) 17.5 Human amnion (Foley) 15.5 First in vitro passage, not serially propagated: Rhesus monkey kidney (Kagle, Foley) 0....

Stone-Wales operators interchange four adjacent hexagons with two pentagon-heptagon 5|7 pairs that, graphically, may be iteratively propagated in the graphene layer, originating a new interesting structural defect called here Stone-Wales wave. By minimization, the Wiener index topological invariant evidences a marked anisotropy of the Stone-Wales defects that, topologically, are in fact prefera...

A three year old girl with severe watery diarrhoea and a vasoactive intestinal peptide, calcitonin, and catecholamine-secreting supra-renal ganglioneuroblastoma is reported. Steady-state perfusion studies showed the jejunum to be in a net secretory state with respect to water, sodium, and chloride at low concentrations (2 mmol/l) of glucose whereas higher concentrations (56 mmol/l) reversed sec...