Results 81 to 90 of about 3,374,874 (275)

Balancing mechanics and metabolism: Elevational variation in the microanatomy of hummingbird flight muscle

The Anatomical Record, EarlyView.
Abstract Factors varying along elevational gradients impose strong aerodynamic and physiological constraints on powered flight, yet the internal microanatomical variation associated with elevational context in animals under such conditions remains poorly understood.
Juan Camilo Ríos‐Orjuela, Juliana Novoa‐Páramo, Maria Juliana Villalba Patiño, Zayra Viviana Garavito‐Aguilar, Alejandro Rico‐Guevara, Carlos Daniel Cadena   +5 more
wiley   +1 more source

Prenylated flavonoid-enriched fraction from Maclura tinctoria shows biological activity against Staphylococcus aureus and protects Galleria mellonella larvae from bacterial infection

BMC Complementary and Alternative Medicine, 2019
Background The Atlantic Forest biome extends along the entire Brazilian coast and is home to approximately 20,000 plant species, many of which are endemic; it is considered one of the hotspot regions of the planet. Several of these species are sources of
Ayla das Chagas Almeida, Lais Azevedo Rodrigues, Graziela dos Santos Paulino, Ananda Pereira Aguilar, Alisson Andrade Almeida, Sukarno Olavo Ferreira, Geraldo Célio Brandão, João Paulo Viana Leite, Andréa de Oliveira Barros Ribon   +8 more
doaj   +1 more source

19. congreso de la Sociedad EspaNola de Bioquimica y Biologia Molecular y 1. Reunion con la Societe Francaise de Biochimie et Biologie Moleculaire

, 1995
Centro de Informacion y Documentacion Cientifica (CINDOC). C/Joaquin Costa, 22. 28002 Madrid.
Sociedad EspaNola de Bioquimica y Biologia Molecular (Spain)
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The lower deciduous dentition of protodidelphids (Mammalia, Marsupialia) from the Itaboraí Basin (lower Eocene), Brazil, and the validity of “Riolestes capricornicus” (Goin et al., 2009)

The Anatomical Record, EarlyView.
Abstract The Itaboraí Basin, Southeastern Brazil, preserved one of the most diverse mammalian faunas from the Paleogene, with Metatheria comprising more than 60% of its diversity. Among identified metatherian clades, it has been argued that Paucituberculata is represented by “Riolestes capricornicus”.
Leonardo M. Carneiro, Hugo Bampi, João P. P. Araújo, Marina B. Soares, Gustavo R. Oliveira   +4 more
wiley   +1 more source

Autocrine Wingless constricts the Drosophila embryonic gut by Ca+2-mediated repolarisation of mesoderm cells

EMBO Reports
Wg/Wnt signalling—a highly conserved transduction pathway—has most commonly been found to be involved in patterning, cell fate, or cell proliferation, but less so in shaping organs or body parts.
Delia Ricolo, Francesca Tamba, Jordi Casanova   +2 more
doaj   +1 more source

[Microscopy vs. molecular biology in the diagnosis of intestinal protozoal infections, is it time for a change?] [PDF]

Rev Esp Quimioter, 2023
Sante Fernández L, Capón González P, Moreno Flores A, Coira Marín P, Alonso García P.   +4 more
europepmc   +1 more source

A formação do professor de biologia [PDF]

, 1997
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias da EducaçãoO estudo evidencia o tratamento dicotômico mantido na estrutura curricular dos cursos de formação do professor de biologia considerando ser essa prática ...
Schlichting, Maria Cristina Rodrigues Maranhão
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Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

The Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

N88S seipin-related seipinopathy is a lipidopathy associated with loss of iron homeostasis

Cell Communication and Signaling
Background Seipin is a protein encoded by the BSCL2 gene in humans and SEI1 gene in yeast, forming an Endoplasmic Reticulum (ER)-bound homo-oligomer. This oligomer is crucial in targeting ER-lipid droplet (LD) contact sites, facilitating the delivery of ...
Mariana O. Ribeiro, Mafalda Oliveira, Verónica Nogueira, Vítor Costa, Vitor Teixeira   +4 more
doaj   +1 more source

A genética se faz presente no vestibular da Universidade Federal de Santa Catarina [PDF]

, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Programa de Pós-Graduação em Educação.Foi feita a análise das provas dos concursos vestibulares realizados pela Universidade Federal de Santa Catarina (UFSC),
Nascimento, Jonice Ferreira de Macedo
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