Neurological complications in hepatitis are common, and in most cases a polyneuropathy is described [1]. Cerebrovascular complications are rare but mostly seen in association with a systemic vasculitis or a cryoglobulinemia [2–4]. We describe an unusual case of cerebro-vascular findings associated with hepatitis C. Case Report A 48-year-old woman was admitted with right facial pain and an MRI s...

Horner syndrome (HS) occurs when there is interruption of the oculosympathetic pathway. The causes of HS are various, but HS originated from herniated cervical disc is very few. HS attributable to the lesion of the first-order neuron of cervical spinal cord is extremely rare. A 41-year old male was admitted for sudden onset of left ptosis and right side numbness. Neurological examination reveal...

A 37-year-old woman experienced a generalized tonic-clonic seizure. Subsequent to the seizure, the patient observed left-sided face and neck pain. A left Horner syndrome was noted on examination. AnMRI and magnetic resonance angiogram revealed a left skull base carotid artery dissection without infarction (figure, A and B). Previous MRI had shown normal carotid flow voids. The patient was treat...

The first enantioselective synthesis of palinurin has been accomplished starting from commercially available furaldehyde and (R)-methyl-3-hydroxy-2-methylpropionate; the key steps of the synthesis include the use of a chiral pyrrolidine to create the chiral tetronic moiety, and Horner-Wadsworth-Emmons, Wittig and Wittig-Horner reactions to construct the alkene units.

We present a compensated Horner scheme, that is an accurate and fast algorithm to evaluate univariate polynomials in floating point arithmetic. The accuracy of the computed result is similar to the one given by the Horner scheme computed in twice the working precision. This compensated Horner scheme runs at least as fast as existing implementations producing the same output accuracy. We also pr...