We construct three (large, reduced) incidence algebras whose semigroups of multiplicative functions, under convolution, are anti-isomorphic, respectively, to the semigroups of what we call partitional, permutational and exponential formal power series without constant term, in infinitely many variables x = (x,, x2,...), under plethysm. We compute the Mobius function in each case. These three in...

We propose a model of self-organization of synaptic connections in V1, emphasizing lateral interactions. Subject to Hebbian learning with decay, evolution of synaptic strengths proceeds to a stable state in which all synapses are either saturated, or have minimum pre/post-synaptic coincidence. The most stable configuration gives rise to anatomically realistic "local maps", each of macro-columna...

INTRODUCTION Möbius syndrome is a heterogeneous congenital disorder that is linked to bilateral palsies of the cranial nerves VI and VII, resulting in congenital facial paralysis sometimes associated with impaired ocular abduction. CASE REPORT We present the case of a 44-year-old woman with Möbius syndrome and inferior recurrent keratitis secondary to scleral show in both eyes. We decided to ...

Moebius syndrome is a rare nonprogressive congenital neurological disorder with a wide range of severity and variability of symptoms. This diversity is a consequence of dysfunction of different cranial nerves (most often facial and abducens nerves), accompanying orofacial abnormalities, musculoskeletal malformations, congenital cardiac diseases, as well as specific associations of Moebius and o...

This paper is focused in some aspects of maternal exposure to misoprostol during perinatal period, and the abortive and teratogenesis effects on the fetus. The causes of malformations were revised, taking into account chemical, physical and environmental factors as well as the interaction between them. There are evidences that the practice of abortion tripled in Southern and Northeastern Brazil...

Strabismus can be found in association with congenital heart diseases, for examples, in velocardiofacial (DiGeorge) syndrome, Down syndrome, mild dysmorphic features, in CHARGE association, Turner syndrome, Ullrich-Turner syndrome, cardiofaciocutaneous syndrome.1-4 Some types of strabismus is heritable (e.g. infantile esotropia syndrome), particularly the ones associated with multisystem disord...

Moebius syndrome, also called congenital facial paralysis is a rare neurological disease, whose etiology is not fully elucidated. It affects especially facial and oculomotor cranial nerves and its clinical feature is peripheral facial paralysis. The objective of the study is to highlight the anatomical and functional changes in the Moebius syndrome and establish certain criteria that should be ...