Let g ∈ Q be not −1 or a square. Let Pg denote the set of primes p such that g is a primitive root mod p. Let 1 ≤ a ≤ f, (a, f) = 1. Under the Generalized Riemann Hypothesis (GRH) it can be shown that the set of primes p ∈ Pg with p ≡ a(mod f) has a natural density. In this note this density is explicitly evaluated. This generalizes a classical result of Hooley.

Prolonged nonconvulsive seizures have been recognized at least since the 19th century, although their inclusion within the rubric of status epilepticus was only formalized by Gastaut and colleagues after the Xth Marseilles Colloquium, held in 1962 (Gastaut et al., 1967). This was the first ever large meeting devoted to the topic of status epilepticus, and the concept that there were status form...

Objective The prevalence of the non-convulsive type of late seizure after stroke is unknown. The aim of the present study was to clarify the characteristics of late seizure in clinical practice, mainly focusing on the prevalence of non-convulsive seizure. Methods A total of 178 consecutive patients who were admitted and diagnosed with late seizure after stroke were retrospectively enrolled, and...

Identifying patients whose complex partial seizures originate in temporal neocortex rather than in hippocampus is important because such patients have less favorable outcomes with standard anteromesial temporal resections. We reviewed scalp-recorded ictal EEGs of 93 epilepsy surgery candidates who either underwent intracranial EEG monitoring (n = 58) or who were referred directly for temporal l...

PURPOSE We examined the incidence of seizures following ischemic stroke in a community-based sample. METHODS All subjects with incident ischemic strokes in the Framingham Original and Offspring cohorts between 1982 and 2003 were identified and followed for up to 20 years to determine incidence of seizures. Seizure-type was based on the 2010 International League Against Epilepsy (ILAE) classif...

Despite anticonvulsant efficacy in animal models of generalized epilepsy, levetiracetam was not effective in the maximal subcutaneous PTZ model in mice and rats. Aim of this study was to assess the efficacy of levetiracetam (LEV) against submaximal, s.c. MET test (PTZ at the dose of 70 mg/kg) acute seizures in Wistar rats, in comparison to valproic acid (VPA). Thirty male Wistar rats (P42) were...

Wong S, Gardner AB, Krieger AM, Litt B. A stochastic framework for evaluating seizure prediction algorithms using hidden Markov models. J Neurophysiol 97: 2525–2532, 2007. First published October 4, 2006; doi:10.1152/jn.00190.2006. Responsive, implantable stimulation devices to treat epilepsy are now in clinical trials. New evidence suggests that these devices may be more effective when they de...

Several studies show that the risk of accidents involving patients with epilepsy is much higher compared to the general population. The objective of this study was to identify the frequency and type of seizure related injuries in children diagnosed with epilepsy. In addition we also assessed possible risk factors associated with this seizure related accidents in childhood. This study was conduc...