Physics is not a subject that endears itself to most people. It is, however, helpful to understand a background to the subject of magnetic resonance. The pnenomenon of magnetic resonance is a natural property of matter that was discovered by American physicists in the 1940s. Magnetic Resonance Imaging is a development of this property in order to demonstrate the internal structures of the human...

We study systems which combine both oscillatory and excitable properties, and hence intrinsically possess two internal frequencies, responsible for standard spiking and for small amplitude oscillatory limit cycles (Canard orbits). We show that in such a system the effect of stochastic resonance can be amplified by application of an additional high-frequency signal, which is in resonance with th...

UNLABELLED Anal fistula is a benign inflammatory disease with unclear etiology which develops in approximately 10 in 100 000 adult patients. Surgical treatment of fistulae is associated with a risk of damaging anal sphincters. This usually happens in treating high fistulae, branched fistulae, and anterior ones in females. In preoperative diagnosis of anal fistulae, endosonography and magnetic r...

INTRODUCTION Extracranial aneurysm of the internal carotid artery is an exceptional finding. CASE REPORT An 89-year-old woman consulted for a peritonsillar mass. Physical examination revealed a parapharyngeal pulsatile mass in the oropharynx. Computed tomography (CT) provided the diagnosis of extracranial internal carotid artery aneurysm. Endovascular or surgical treatment were declined. Anti...