The atrioventricular (A-V) conduction time in patients with secundum ASD who had left-toright shunts of 40-65% of their pulmonary flow was evaluated utilizing intracardiac electrograms. The A-V conduction time was divided into three components: (1) P-A interval, from the onset of the P wave to the time of excitation of muscle in the vicinity of the A-V node, (2) A-H interval, from the time of e...

Herbaceous peony (Paeonia lactiflora Pall.) is an important ornamental plant worldwide. In its natural state, P. often manifests traits like rapidly elongating internodal growth, loose types, and soft inflorescence stems. However, very little has been known about the measures for controlling these traits. This study investigated effect of applying paclobutrazol (PBZ) on growth flower quality in...

The nonlinear solvers in numerical solution of water flow in variably saturated soils are prone to convergence difficulties. Many aspects can give rise to such difficulties, like very dry initial conditions, a steep pressure gradient and great variation of hydraulic conductivity occur across the wetting front during the infiltration of water.  So, the averaging method applied to compute hydraul...

Schematic diagram of an alternate possible mechanism in the Lown-Ganong-Levine syndrome. The impulse from the sinoatrial node (SAN) arrives either via the posterior internodal tract (PIT) or the normal tract to the atrioventricular node (AVN) at a His-Purkinje junction (LAMBDA) distal to the recording site of the His electrode. Retrograde depolarization of the proximal, and antegrade depolariza...

A new, fault-tolerant, scalable, and, modular virtual topology for lightwave networks employing wavelength division multiplexing is proposed. The proposed architecture is based on hypercube connected ring structure that enjoys the rich topological properties of hypercube, but it also overcomes one of its drawback. In a hypercube, the nodal degree increases with the number of nodes. Hence, the p...

A simple approach to testing the significance of the branching order, estimated from protein or DNA sequence data, of three taxa is proposed. The branching order is inferred by the transformed-distance method, under the assumption that one or two outgroups are available, and the branch lengths are estimated by the least-squares method. The inferred branching order is considered significant if t...

Incidence of lesions in single-teased myelinated fibers and the relationship between internodal length and fiber diameter were studied by morphologic and morphometric techniques on common peroneal and ulnar nerves of 28 dogs between three months and 15 years of age that were free of neuromuscular disease. Minimal lesions were seen in nerves of dogs under ten years of age, usually involving less...