Results 21 to 30 of about 1,484 (212)

Centronuclear myopathy: histopathological aspects in ten patients with chilfhood onset Miopatia centronuclear: aspectos histopatológicos em dez pacientes com a forma clínica de início na infância

open access: yesArquivos de Neuro-Psiquiatria, 1998
Centronuclear myopathy is a rare congenital myopathy. According to the period of onset of signs and symptoms and the degree of muscular involvement three clinical forms are distinguished: severe neonatal; childhood onset; and adult onset.
EDMAR ZANOTELI   +4 more
doaj   +1 more source

Watery and dark axons in Wallerian degeneration of the opossum's optic nerve: different patterns of cytoskeletal breakdown?

open access: yesAnais da Academia Brasileira de Ciências, 2001
In this paper we report a qualitative morphological analysis of Wallerian degeneration in a marsupial. Right optic nerves of opossums Didelphis marsupialis were crushed with a fine forceps and after 24, 48, 72, 96 and 168 hours the animals were ...
MARCELO S. NARCISO   +2 more
doaj   +1 more source

Palynological analysis of Sphaeropteris gardneri (Cyatheaceae, Pteridophyta)

open access: yesAnais da Academia Brasileira de Ciências, 2010
The spore morphology and wall ultrastructure of Sphaeropteris gardneri (Hook.) R.M. Tryon from Brazil were analyzed with LM, SEM and TEM. The spores are trilete with an ornamentation formed of short low ridges with spines in their margins.
Gonzalo J. Marquez   +2 more
doaj   +1 more source

Diagnóstico de doenças metabólicas do sistema nervoso da infância por exame ultra-estrutural de tecido não cerebral [PDF]

open access: yesArquivos de Neuro-Psiquiatria, 1998
Se bem que as análises bioquímica e de genética molecular sejam os métodos mais precisos para o diagnóstico de doenças metabólicas, os estudos morfológicos permanecem um método diagnóstico muito importante principalmente em países como o Brasil, onde os ...
SÉRGIO ROSEMBERG
doaj   +1 more source

Ultrastructural characterization of bovine umbilical cord blood cells Caracterização ultra-estrutural das células sanguíneas do cordão umbilical bovino

open access: yesPesquisa Veterinária Brasileira, 2010
The umbilical cord blood (UCB) is an important source of pluripotent stem cells, which motivated researches on ontogeny and transplantation. The morphological characterization of umbilical cord cells is the first step to establish subsequent experiments ...
Gustavo C Rodrigues   +7 more
doaj   +1 more source

Miopatias associadas a agregados tubulares

open access: yesArquivos de Neuro-Psiquiatria, 1993
Os autores relatam a caso de paciente de 58 anos de idade do sexo masculino, com quadro de características miastênicas tanto clínica como eletromiograficamente, no qual a biópsia muscular com histoquímica e microscopia eletrônica permitiu fazer o ...
Mary Souza Carvalho   +5 more
doaj   +1 more source

Aspectos da ultra-estrutura dos cecos gástricos da larva de Odontosciara sp. (Diptera: Sciaridae) [PDF]

open access: yesRevista Brasileira de Zoologia, 1985
Ultrastructural features of the gastric caeca of Odontosciara sp. are reported. The species has 4 lateral caeca connected with the anterior midgut at the level of the foregut junction. The epithelial cell features indicate protein synthesis, digested material absorption from the lumen and haemolymph material absorption. Those functions, however, do not
Cruz Landim, Carminda da   +1 more
openaire   +4 more sources

Caught in an Authoritarian Trap of Its Own Making? Brazil's ‘Lava Jato’ Anti‐Corruption Investigation and the Politics of Prosecutorial Overreach

open access: yesJournal of Law and Society, Volume 47, Issue S1, Page S54-S73, October 2020., 2020
Abstract The negative and corrosive impacts of corruption in the fields of economics, politics, and law are widely discussed. Less understood are the potentially negative impacts of anti‐corruption struggles and strategies themselves. This article presents a case study of Brazil's ‘Car Wash’ (‘Lava Jato’) scandal from a legal and political perspective.
GEORGE MÉSZÁROS
wiley   +1 more source

Estrutura e desenvolvimento de canais secretores em frutos de Schinus terebinthifolius Raddi (Anacardiaceae) [PDF]

open access: yesActa Botânica Brasílica, 2001
As cavidades secretoras no fruto de Schinus terebinthifolius foram analisadas aos microscópios de luz e eletrônico de transmissão. Estas cavidades são complexas e constituídas por epitélio multiestratificado que circunda o lume preenchido por secreção ...
Silvia Rodrigues Machado   +1 more
doaj   +1 more source

Ultrastructural aspects of the remodeling process of the Corpus albicans in the recent postmenopausal period [PDF]

open access: yes, 1996
To study the cytophysiology of the Corpus albicans in the recent postmenopausal period, the authors analyzed the ovarian ultrastructure of ten patients submitted to oophorectomy due to non-malignant gynecological diseases.
Baracat, Edmund Chada   +4 more
core   +2 more sources

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