OBJECTIVE To describe subretinal migration of gas and silicone oil in a series of patients with congenital cavitary optic disc anomalies and to further clarify the pathogenesis of the associated maculopathy. METHODS Medical records of 4 female patients, aged 8 to 34 years, who developed subretinal gas migration after vitreous surgery for macular detachment associated with cavitary optic disc ...

This review article describes anatomy, physiology, pathophysiology and treatment of intervertebral disc. The intervertebral discs lie between the vertebral bodies, linking them together. The components of the disc are nucleus pulposus, annulus fibrosus and cartilagenous end-plates. The blood supply to the disc is only to the cartilagenous end-plates. The nerve supply is basically through the si...

Endoscopic discectomy entails use of an imaging-guided probe inserted between the vertebrae and into the herniated disc space. Microsurgical attachments routed through the endoscope remove a portion of the nucleus tissue of the compromised disc; the amount excised depends on various circumstances but never affects the disc’s support structure. It is also possible to use the instrument to manipu...

During botanical expeditions between 2010 and 2015, as part of a taxonomic study of Manihot in the Midwest region of Brazil, approximately 500 specimens of the genus were collected. Some of these specimens presented similarities to Manihot irwinii. However, after careful morphological analyses, associated with genetic evidence, we propose here Manihot pulchrifolius as a new species. The new spe...

CEIHC is an acronym that stands for Council for Human-Computer Interaction. This council is composed by members of the Brazilian Computer Society (SBC) and its main goal is to promote the field of Human-Computer Interaction in Brazil. In this paper, we detail the missions assigned to the CEIHC and its recent activities. Moreover, challenges for the development of this field and future activitie...

Pest populations of the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Homoptera: Pseudococcidae) were reduced successfully by the biological control agent Apoanagyrus (Epidinocarsis) lopezi De Santis (Hymenoptera: Encyrtidae) throughout most of sub-Saharan Africa. The economics of the project were evaluated based on data from field trials, socio-economic surveys, published results, and fina...

Colosmittia brasileira sp. n. from São Paulo state, Brazil, is described and illustrated based on a male imago. The genus Colosmittia Andersen & Saether was described based on a single species, C. clavata Andersen & Saether, from the West Usambara Mountains, Tanzania, East Africa. The discovery of the new species shows that Colosmittia has an Afro-Brazilian distribution pattern.

Pedidos iniciais Auxílios Bolsas Auxílio à Pesquisa Projeto Temático Reparo de Equipamentos Iniciação Científica Organização de Reunião Participação em Reunião Aperfeiçoamento Vinda de Pesquisador Visitante Mestrado Inovação Tecnológica Parceira Universidade/Empresa (PITE) Doutorado no Brasil Jovens Pesquisadores Pós Doutorado no Brasil Publicação Pesquisa no Exterior Inovação Tecnológica em Pe...

We present elastomeric membrane valves integrated into a centrifugal microfluidic platform for precise control of fluid on a disc. The amount of the fluid passing through the valves, which depends on the rotating speed of the disc and the membrane thickness, has been characterized, and could be precisely controlled by tuning the disc motion.

In order to determine the effect of internal cracks on tensile failure materials, a hybrid finite–discrete element method was used analyze Brazilian disc test with different angles. When pre-crack angle is between 0° and 60°, wing crack initiated from end. 90°, center. maximum principal stress plastic strain are concentrated at in As increased mode discs transits splitting into two parts four p...