This paper presents a new method of evaluating heart rate variability based on nonlinear analysis. We can describe selected processes generated in living organism much more effectively using specific methods of nonlinear analysis. The main tool of recurrence analysis is represented by recurrence plots which visualise the recurrence behaviour of the phase space trajectory of dynamical systems.

Burst suppression is a unique electroencephalogram (EEG) pattern commonly seen in cases of severely reduced brain activity such as overdose of general anesthesia. It is important to detect burst suppression reliably during the administration of anesthetic or sedative agents, especially for cerebral-protective treatments in various neurosurgical diseases. This study investigates recurrent plot (...

Orbital lymphangiomas are rare benign vascular lesions of the orbit. Due to their intimate relationship to the orbital contents, gross total resection can be difficult, resulting in a relatively high recurrence rate. Between May 2002 and June 2013, eight patients (five male, three female) underwent surgical resection for orbital lymphangiomas at our institution. Of the seven patients with follo...

We studied 154 children admitted consecutively with their first febrile convulsion to assess the influence of the temperature on the recurrence rate of convulsions. Those with temperatures of 40 degrees C or more were nine times less likely to have subsequent convulsions than those with temperatures of 38-38.9 degrees C.

BACKGROUND AND PURPOSE Primary intracerebral hemorrhage (PICH) is a devastating illness with high early mortality. Hypertension is a major risk factor both for ischemic cerebrovascular disease and for intracranial hemorrhage. Survivors of PICH are at risk for both recurrent hemorrhage and ischemic cerebrovascular disease. We sought to determine the rate of recurrence of ICH or cerebral ischemia...

Introduction: Herpes Simplex Virus type 1 (HSV-1) is the virus that most often infects oral cavity. HSV-1 in latent phase migrates to trigeminal ganglion after primary infection and can reactivate cause recurrent intraoral herpes (RIH). The recurrence of RIH multifactorial triggered by decreased immunity, fatigue, hypersensitivity, stress, ultraviolet. Case: Three male patients came Oral Diseas...

It is apparently not well-known that g(n) = f(n) + f(n− 1) + f(n− 2) if and only if f(n) = n ∑ k=0 g(n− k) [ k2 ] ∑ j=0 (−1)k−j ( k − j j ) , where we suppose that f(n) = 0 for n < 0. This may also be expressed as f(n) = n ∑ k=0 (−1)g(n− k) 2 ( (−1) k3 ] + (−1) k+1 3 ] ) . We show how to solve for f(n) in the general case g(n) = r ∑ k=0 f(n− k), where f(n) = 0 for n < 0, with 1 ≤ r ≤ n. We shal...

We argue that one can factorize the difference equation of hypergeometric type on non-uniform lattices in the general case. It is shown that in the most cases of q-linear spectrum of the eigenvalues, this directly leads to the dynamical symmetry algebra suq(1, 1), whose generators are explicitly constructed in terms of the difference operators, obtained in the process of factorization. Thus all...