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A novel, nonlinear, phase space based method to quickly and accurately identify life-threatening arrhythmias is proposed. The accuracy of the proposed method in identifying sinus rhythm (SR), monomorphic ventricular tachycardia (MVT), polymorphic VT (PVT), and ventricular fibrillation (VF) for signals of at least 0.5s duration was determined for six(More)
The chemical tools that could be used to examine the function of histamine in the brain are considered together with the evidence linking histamine specifically with the hypothalamus. The distribution of histamine and the enzymes responsible for its synthesis and metabolism is consistent with there being both mast cells and histaminergic nerve terminals(More)
The GABA uptake inhibitor, L-2,4-diaminobutyric acid (L-DABA) was examined for potential anticonvulsant activity in mice. Given intracerebroventricularly (i.c.v., 2 mumoles) L-DABA almost doubled the CD50 of picrotoxin and 3-mercaptopropionate (3-MP), a glutamate decarboxylase inhibitor--the convulsants being administered 15 min after the L-DABA. The(More)
1. The values for kallikrein, amylase and protein were determined in samples of saliva obtained from 220 girls aged 14--18 years. 2. The concentrations of protein and amylase and kallikrein activities (per ml of saliva) were considerably more variable in samples taken in the morning than those in the afternnon. 3. The median amylase activity was about two(More)
A preliminary study in the use of frequency sub-bands with reconstructed phase spaces (RPS) to distinguish between normal and abnormal atrial activity in an attempt to separate the atrial activation components from the ventricular activation components is presented. Two-second ECG Holter recordings of sinus rhythm (SR), atrial flutter (AFL), atrial(More)
BACKGROUND The efficacy of a novel anesthetic gel (lidocaine 25 mg/g plus prilocaine 25 mg/g in thermosetting agents) for non-invasive periodontal pocket anesthesia was evaluated. METHODS One hundred twenty-two (122) patients in 8 centers with moderate to severe periodontitis requiring scaling and root planing (SRP) were enrolled in this multicenter,(More)
Phlegmasia cerulea dolens (PCD) is the term describing the painful venous congestion that results from near-total venous occlusion of a limb. It is unusual in the lower extremity but is decidedly rare in the upper extremity with only a handful of cases reported in the literature. PCD of the upper extremity usually occurs in patients with significant(More)