6 documents found, page 1 of 1
AFRICANIDADES E TRIBALISMO CULTURAL: EXPERIENCIAS DE PROFESSORES (AS) DA CIDADE...
Valentim, Silvani dos Santos; Moreira, JaneThis article presents dimensions of a study that focused on the pedagogical experiences of a group of teachers from public schools in Obuasi, Ghana, in West Africa. The objective is to present the specificities of the teachers' experiences, by means of an informative, analytical and reflective approach to the cultural tribal relations in the school arena, the valorization of the identity of the people of G...
Ultrastructural characterization of the spermatozoa of Aethalion reticulatum Li...
Araújo, Vinícius Albano; Moreira, Jane; Neves, Clóvis Andrade; Lino-Neto, José; Báo, Sônia NairThe Hemiptera order is currently divided into four suborders. Among them the Auchenorrhyncha suborder is considered to be paraphyletic. Morphology of insect spermatozoa has provided promising characteristics that can be used for phylogenetic inference. In this study, Aethalion reticulatum (Aethalionidae) spermatozoa were examined by light and electron microscopy. The head of the spermatozoa is composed of an ac...
Structural and ultrastructural characteristics of male reproductive tract and s...
Moreira, Jane; Araújo, Vinícius Albano; Lino-Neto, José; Báo, Sônia NairThis study represents the first characterization of male reproductive tracts and ultrastructural description of sperm of Cryptinae species. In Lymeon dieloceri and Pachysomoides sp., the male reproductive tract is formed by a pair of testis, two deferent ducts, two accessory glands and one ejaculatory duct. The spermatozoa are similar to those described for other Hymenoptera, with: (1) the acrosome formed by th...
Ultrastructure of spermatozoa in two solitary bee species with an emphasis on s...
Araújo, Vinícius Albano; Serrão, José Eduardo; Moreira, Jane; Báo, Sônia Nair; Lino-Neto, JoséMorphology of spermatozoa in bees has provided promising results for phylogenetic analyses. In this work, the structure and ultrastructure of spermatozoa from Thygater (Thygater) analis and Melitoma segmentaria were characterized and the synapomorphies shared in the family Apidae are discussed. In these species, spermatozoa bundles which are undone in the seminal vesicle possess, on average, 50 cells. Spermatoz...
Morphology of testicular and post-testicular spermatozoa in Microstigmus arlei ...
Zama, Uyrá; Moreira, Jane; Báo, Sônia Nair; Campos, Lucio Antonio de Oliveira; Dolder, Heidi; Lino-Neto, JoséThe sperm of Microstigmus arlei and Microstigmus nigrophthalmus are twisted in a spiral and consist of two regions: the head, formed by an acrosome and a nucleus, and the flagellum, formed by two asymmetric mitochondrial derivatives, a long centriolar adjunct, an axoneme (9 + 9 + 2) and two accessory bodies. The head shows a characteristic morphology. The acrosome is very long and is basically made up of a para...
Morphology of testicular and post-testicular spermatozoa in Microstigmus arlei ...
Zama, Uyrá dos Santos; Moreira, Jane; Báo, Sônia Nair; Campos, Lucio Antônio de Oliveira; Dolder, Heidi; Lino Neto, JoséThe sperm of Microstigmus arlei and Microstigmus nigrophthalmus are twisted in a spiral and consist of two regions: the head, formed by an acrosome and a nucleus, and the flagellum, formed by two asymmetric mitochondrial derivatives, a long centriolar adjunct, an axoneme (9 þ 9 þ 2) and two accessory bodies. The head shows a characteristic morphology. The acrosome is very long and is basically made up of a para...