Background: Chiari Malformation type 1 (CM-I) is a congenital disease characterized by downward decent of the cerebellar tonsil and crowding in the craniocervical junction area. There are still obvious controversies for the optimum surgical strategy for Chiari malformation type 1 especially if associated with syringomylia. Objectives: to determine the results of bony decompression with and with...

While developing a method for doing perinatal necropsies some 4,000 necropsies ago, we were disturbed about the contamination of the cerebrospinal fluid with blood whilst opening the skull, and a technique was devised of opening the dura over the base of the skull, sampling the cerebrospinal fluid and inspecting the foramenmagnum frombelow before the skull was touched. That method (Emery, 1960)...

For many marine fish, intense larval mortality may provide considerable opportunity for selection, yet much less is known about the evolutionary potential of larval traits. We combined field demographic studies and manipulative experiments to estimate quantitative genetic parameters for both larval size and swimming performance for a natural population of a common coral-reef fish, the bicolor d...

Abstract Nous décrivons un cas d'ectopia cordis, une malformation cardiaque congénitale extrêmement rare dans laquelle le coeur est partiellement ou complètement situé en dehors des limites de la cage thoracique. Dans le cas que nous décrivons, elle est thoracique et isolée. Ce cas a été diagnostiqué en salle de naissance au Katanga, au sud de la République Démocratique du Congo. Il s'agit du p...

We study magnetic field evolution in flows with fluctuating in time governing parameters in electrically conducting fluid. We use a standard mean-field approach to derive equations for large-scale magnetic field for the fluctuating Arnold-Beltrami-Childress (ABC) flow as well as for the fluctuating Roberts flow. The derived mean-field dynamo equations have growing solutions with growth rate of ...

To determine the value of ultrasound scanning of the craniocervical junction in neonates via a posterior approach, we examined 50 infants with normal posterior fossae, 10 with congenital abnormalities, and eight with intracranial hemorrhage. Good evaluation of the cisterna magna, medulla, tonsils, vermis, cervical cord, and central canal was possible in most cases. In nine patients with spinal ...