Recurrence Quantification Analysis (RQA) is a method for measuring the complexity of dynamical systems. determinism fundamental characteristic RQA, closely related to correlation sum. In this paper, we study asymptotic behavior these quantities interval maps. We show which cases sum exists. An example an map with zero entropy and point finite [Formula: see text]-limit set does not exist given. ...

background and purpose: the relationship between uric acid and stroke recurrence is ambiguous. some studies have explored this relationship in acute ischemic stroke but had different results. we evaluated the association of admission uric acid level with risk of stroke recurrence in patients with ischemic stroke. methods: we studied ischemic stroke patients presenting to our hospital with magne...

results there was no statistical difference between the 2 groups with respect to the recurrence rate (p > 0.05). although the recurrence interval was longer for the metformin group, this increase was not statistical significant (p > 0.05). furthermore, tumor recurrence had no correlation with sex or the grade of the tumors. conclusions according to our findings, it seems that metformin has no c...