Since its discovery, Chua’s circuit has served as the main prototype circuit for studying chaos in electronic systems [Matsumoto, 1984]. Several realizations of this circuit have been introduced in the literature [Cruz & Chua, 1992; Kennedy, 1992, 1995; Rodriguez-Vazquez & Delgado-Restituto, 1993; Zhong, 1994; Morgul, 1995; Elwakil & Kennedy, 1999a, 1999b, 2000]. These various implementations w...

Phosphatidylserine decarboxylase, which is embedded in the inner mitochondrial membrane, synthesizes phosphatidylethanolamine (PE) and, in some cells, synthesizes the majority of this important phospholipid. Normal levels of PE can decline with age in the brain. Here we used yeast and worms to test the hypothesis that low levels of PE alter the homeostasis of the Parkinson disease-associated pr...

Tumors of the olfactory groove may cause unilateral optic atrophy with contralateral papilledema and anosmia (Foster Kennedy syndrome). We describe a case of a young pregnant woman with Foster Kennedy syndrome due to an olfactory groove meningioma.

To the outpatient facility of the Department of Ophthalmology, Faculty Hospital Brno, Czech Republic, E.U., was in June 2013 referred a 24 years old man with the suspicion of Foster Kennedy syndrome. On the fundus examinations, the findings were in correlation with the symptoms of this syndrome: slightly pale optic disc of the right eye and edema with the anterior extension of the optic nerve h...

The clustering of cases of disease within family groups has long been of interest to geneticists, but the empirical data which they have gathered concerning the strengths of these associations have had to do largely with conditions that were thought in advance to be either hereditary or at least partially so. Epidemiologists, who might be expected to be interested in the strengths of familial p...