Cerebral salt wasting following traumatic brain injury

Hyponatraemia is the most commonly encountered electrolyte disturbance in neurological Sippy Cups high dependency and intensive care units.Cerebral salt wasting (CSW) is the most elusive and challenging of the causes of hyponatraemia, and it is vital to distinguish it from the more familiar syndrome of inappropriate antidiuretic hormone (SIADH).Man

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Nonparametric tests of strike price and expiration bias in the implied volatility of the South African All Share Index Future Contract

In this article we assess the appropriateness of the constant volatility assumption required by the Black (1976) option pricing model for options on the All Share Index future.The assessment uses similar nonparametric tests as implemented in Rubinstein for data recorded over the 1992 to 1996 period.In the nonparametric tests we focus on the examina

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