Volatility of aggregate volatility and hedge fund returns

This paper investigates empirically whether uncertainty about equity market volatility can explain hedge fund performance both in the cross section and over time. We measure uncertainty via volatility of aggregate volatility (VOV) and construct an investable version through returns on lookback straddles on the VIX index. We find that VOV exposure is a significant determinant of hedge fund returns. After controlling for fund characteristics, we document a robust and significant negative risk premium for VOV exposure in the cross section of hedge fund returns. We corroborate our results using statistical and parameterized proxies of VOV over a longer sample period

Lack of relation between serum parathyroid hormone levels and erythrocyte osmotic fragility in pediatric patients on peritoneal dialysis

Secondary hyperparathyroidism and anemia are the hallmarks in uremic patients. It is suggested that parathyroid hormone increases erythrocyte osmotic fragility and induces hemolysis. The present study was undertaken to examine the possible relationship between erythrocyte osmotic fragility and secondary hyperparathyroidism in 20 pediatric patients on maintenance peritoneal dialysis. We found that erythrocyte osmotic fragility in these patients was normal. No correlation between erythrocyte osmotic fragility and hematochemical changes associated with secondary hyperparathyroidism was found. We conclude that erythrocyte osmotic fragility was normal in pediatric patients on peritoneal dialysis and excess parathyroid hormone levels do not affect erythrocyte osmotic fragility and do not cause anemia

Antipsychotics in the treatment of hospitalized manic patients in Turkey: retrospective naturalistic one year data

4th Biennial Conference of the International-Society-for-Bipolar-Disorders -- MAR 17-20, 2010 -- Sao Paulo, BRAZILWOS: 000275344600197Int Soc Bipolar Disorder

Antipsychotics in the treatment of hospitalized manic patients in Turkey: retrospective naturalistic one year data

4th Biennial Conference of the International-Society-for-Bipolar-Disorders -- MAR 17-20, 2010 -- Sao Paulo, BRAZILWOS: 000275344600197…Int Soc Bipolar Disorder