This paper studies a shape-invariant Engel curve system with endogenous total expenditure, in which the shape-invariant speci…cation involves a common shift parameter for each demographic group in a pooled system of nonparametric Engel curves. We focus on the identi…cation and estimation of both the nonparametric shapes of the Engel curves and the parametric speci…cation of the demographic scal...

Posterior quadrant dysplasia (PQD) is a rare variant of cortical dysplasia involving the posterior regions of a single hemisphere. It is always associated with early onset, refractory epilepsy often characterized by a "catastrophic" evolution. The experience on its surgical management during the first year of life is limited to sporadic, isolated cases. Between 2002 and 2005, four children less...

151. Margolin SG, Strauss H, Engel GL: Electroencephalographic changes associated with hypersensitivity of the carotid sinus. Arch Neurol Psychiatr 45:889-890, 1941 152. Engel GL, Margolin SG: Clinical correlation of the electroencephalogram with carbohydrate metabolism. Arch Neurol Psychiatr 45:890-891, 1941 153. Engel GL, Margolin SG: Neuropsychiatric disturbances in Addison's disease and the...

Within a semiparametric framework we propose a test of shape invariance of Engel curves, which is a necessary condition for base independence. Using Canadian family expenditure data for 1996 we reject shape invariance for the fuel and clothing share equations. ∗The first author would like to acknowledge SSHRC of Canada for financial support.

McArdle (1951) first described a syndrome characterized by muscle cramps and stiffness after exercise and suggested that this may have been due to defective breakdown of glycogen in skeletal muscle. Deficiency of musclephosphorylase was subsequently demonstrated in two patients with the same syndrome (Schmid and Mahler, 1959; Mommaerts, Illingworth, Pearson, Guillory, and Seraydarian, 1959). Pa...

We study Thurston geometries (X, G) with contact structures and Engel structures which are compatible with the action of the isometry group G. We classify geometric contact structures and geometric Engel structures up to equivalence and we compare the geometric Engel structures with other constructions of Engel manifolds.

Objective To present a surgical series of patients with low grade temporal gliomas causing intractable epilepsy, focusing on long-term seizure outcome.Method A retrospective study was conducted with patients with temporal low-grade gliomas (LGG).Results Sixty five patients with were operated in our institution. Males were more affected than females and the mean age at surgery was 32.3 ± 8.4 (9-...