We develop two new estimators for a general class of stationary GARCH models with possibly heavy tailed asymmetrically distributed errors, covering processes with symmetric and asymmetric feedback like GARCH, Asymmetric GARCH, VGARCH and Quadratic GARCH. The first estimator arises from negligibly trimming QML criterion equations according to error extremes. The second imbeds negligibly transfor...

OBJECTIVES To explore patients' perceptions and experiences of 'normality' and the influences on this at three time points post-transplant. METHODS In-depth interviews with 25 patients at three months, one year and more than three years following kidney transplant. Patients' accounts were compared with Sanderson et al.'s typology of types of normality. FINDINGS Post-transplant, patients wor...

This study focuses on signs, meanings, and practices related to mental normality and health in a northern coastal area of Bahia, Brazil. It discusses local conceptions about the non-existence or exclusive existence of mental normality, as well as points of view concerning total mental normality. It identifies the prototypes of normality, like "normal", "almost normal", and "false normal", as si...