Results 21 to 30 of about 24,883 (215)

Melas (mitochondrial, encephalopathy, lactic acidosis and stroke like episodes): relato de um caso

open access: yesArquivos de Neuro-Psiquiatria, 1987
Relato de caso de menino de 12 anos de idade que apresentou diversas crises convulsivas, cefaléia e vômitos de difícil controle, concomitantes a sinais neurológicos focais.
Lineu Cesar Werneck   +2 more
doaj   +1 more source

Atividade citocromo C oxidase em espermatozoide bovinos. [PDF]

open access: yes, 2016
A enzima citrocromo C oxidase participa do metabolismo energético dos espermatozoides, podendo sua atividade ser quantificada por método citoquímico em uma variedade de espécies de animal.
BARBOSA, R. T., ESPER, C. R.
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Population genetics and the role of dispersal barriers in the Antarctic springtail Kaylathalia klovstadi (Collembola, Isotomidae)

open access: yesJournal of Zoology, Volume 326, Issue 2, Page 109-120, June 2025.
Our study investigates the role of Tucker and Whitehall Glaciers as barriers to the dispersal of the springtail Kaylathalia klovstadi and examines its genetic population structure using mitochondrial DNA markers. Genetic analyses of 62 individuals from six populations reveal new insights into the species’ diversity and distribution, challenging ...
S. Boschi   +5 more
wiley   +1 more source

Nueva especie del género Chondrostoma Agassiz, 1832 (Actynopterigii, Cyprinidae) del oeste de Portugal

open access: yesGraellsia, 2005
Se describe una nueva especie de ciprínido endémico del oeste de Portugal, Chondrostoma occidentale sp. n., sobre la base de peces colectados en las pequeñas cuencas costeras de los ríos Alcabrichel, Sizandro y Safarujo. La nueva especie comparte algunas
J. I. Robalo   +4 more
doaj   +1 more source

Indigenous and introduced species of the Bemisia tabaci complex in sweet potato crops from Argentina [PDF]

open access: yes, 2014
La batata (Ipomoea batatas (L.) Lam) es uno de los cultivos más importantes en el mundo. Recientemente se observó una severa sintomatología viral en cultivos de la región pampeana argentina, en la que están identificados begomovirus y crinivirus, ambos ...
Alemandri, V.   +3 more
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Tracing the origin of the alien pest Cydia pomonella in Algeria through a worldwide comparison of the species’ DNA barcodes Reserche de l'origine du ravageur exotique Cydia pomonella en Algérie grâce à une comparaison mondiale des codes‐barres ADN de l'espèce Rastreando el origen de la plaga exótica Cydia pomonella en Argelia mediante una comparación mundial de los códigos de barras del ADN de la especie

open access: yesAgricultural and Forest Entomology, Volume 27, Issue 2, Page 171-181, May 2025.
Cydia pomonella (Lepidoptera: Tortricidae) is a harmful apple and pear pest spread worldwide. We sequenced, for the first time, mitochondrial DNA from C. pomonella caterpillars collected in Northern Africa (Algeria) and assessed where it was introduced from.
Tayeb Mahi   +4 more
wiley   +1 more source

Phylogeography of the Iberian endemic butterfly Erebia palarica Chapman, 1905 (Lepidoptera: Nymphalidae): An integrative approach Filoxeografía do endemismo ibérico Erebia palarica Chapman, 1905 (Lepidoptera: Nymphalidae): un enfoque integrador

open access: yesInsect Conservation and Diversity, Volume 17, Issue 4, Page 651-675, July 2024.
A double star‐like pattern in the COI haplotype network of Erebia palarica suggests a demographic expansion from two ancestral populations in this Iberian montane endemic. Seven microsatellite markers revealed a pattern of isolation by distance (IBD) along the Cantabrian Mountains, as opposed to different levels of genetic structure found in western ...
Laura Torrado‐Blanco   +4 more
wiley   +1 more source

Efecto de la infección de Newcastle Disease Virus en distintas fases del ciclo celular [PDF]

open access: yes, 2016
Trabajo Fin de Máster presentado por la licenciada en Biotecnología Elena Martín Doncel para optar al título de Máster en Biología y Clínica del Cáncer por la Universidad de Salamanca, que ha sido realizado en el Instituto de Biología Molecular y Celular
Martín-Doncel, Elena
core  

Uncovering the magnitude of African pangolin poaching with extensive nanopore DNA genotyping of seized scales

open access: yesConservation Biology, Volume 38, Issue 2, April 2024.
Abstract Trade in pangolins is illegal, and yet tons of their scales and products are seized at various ports. These large seizures are challenging to process and comprehensively genotype for upstream provenance tracing and species identification for prosecution.
Darren Yeo   +26 more
wiley   +1 more source

Taxonomic identification with cytochrome b applied to a Patagonian archaeological case [PDF]

open access: yes, 2016
En este trabajo presentamos los primeros resultados de la identificación taxonómica mediante el análisis del citocromo b de muestras óseas subactuales y arqueológicas (Holoceno tardío) procedentes de Patagonia.
Catelli, Laura   +9 more
core  

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