Results 31 to 40 of about 997 (155)

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

Journal of Anatomy, EarlyView.
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston, Daniela Schwarz, Paul Upchurch, Stephen F. Poropat, Patrick Asbach, Philip D. Mannion   +5 more
wiley   +1 more source

Green Synthesis of Silver Nanoparticles Using Root Extract of Gomphrena vaga Mart.: Metabolomic Insights Into Nanoparticle Formation and Antimicrobial Activity

Nano Select, Volume 7, Issue 8, August 2026.
This study presents the green synthesis of ultrasmall silver nanoparticles using Gomphrena vaga Mart. root extract. The nanoparticles synthesized were stable and showed good broad‐spectrum antibacterial activity against Gram‐positive and Gram‐negative bacteria in initial studies.
Uedson da Silva das Neves, Thyerre Santana da Costa, Symone Costa de Castro, Maelson Cardoso Lacerda, Mauro Alves Bueno, Ljubica Tasic   +5 more
wiley   +1 more source

She Doesn't Whisper: Female‐Prominent Stridulation Shaped by Morphology in a Buthid Scorpion and Insights on Its Function

Ethology, Volume 132, Issue 8, Page 533-543, August 2026.
Sexual dimorphism and stress‐induced stridulatory responses in Jaguajir rochae (Borelli, 1910). Females exhibited greater absolute pectinal size and higher sound pressure levels, whereas males showed higher pectinal allometric ratios relative to body size, lower sound frequencies, and shorter delta times.
Welton Dionisio‐da‐Silva, Natália Maria Câmara Luna, Patrício Adriano da Rocha, Rodrigo Hirata Willemart, Marcio Bernardino daSilva   +4 more
wiley   +1 more source

Balance y perspectivas predominantes en la historia de la cultura escrita: una aproximación

Palabra Clave [La Plata], 2014
El artí­culo reflexiona sobre la obra de los autores que son y serán referentes en los estudios históricos sobre la cultura escrita. No obstante, no pretende abarcarlos en su totalidad.
José Daniel Moncada Patiño
doaj  

Digitalización documental en el Museo de Historia de la Comunidad de Moa

Ciencia & Futuro, 2023
Se propone un proyecto de digitalización de los documentos históricos en el Museo de Historia de la comunidad de Moa. Para ello, se aplicó la metodología propuesta por Falcón y Pérez (2004) fundamentada en tres etapas planificación, ejecución y control ...
Mariolis Rodríguez Cabrera, Yakelín Azaharez Tomasen, Beatriz Reyes Nicot Reyes Nicot, Yarina Torres Batista   +3 more
doaj  

Chemical Characterization and In Vivo Safety Assessment of Aqueous Extract From Anacardium occidentale L. (Anacardiaceae) Leaves

Chemistry &Biodiversity, Volume 23, Issue 7, July 2026.
Anacardium occidentale leaf aqueous extract showed rich polyphenolic composition, including flavonoids, tannins, and phenolic acids. Acute toxicity in mice revealed no mortality or adverse effects, with LD50 >2000 mg/kg and GHS Class 5. Genotoxicity assays were negative, supporting safety and potential phytopharmaceutical development, pending chronic ...
Elinado Francisco de Lima Bento, Caio Everton Nunes da Silva, Talita Giselly dos Santos Souza, Camylla Janiele Lucas Tenório, Natanael Teles Ramos de Lima, Cristiano Aparecido Chagas, José Maria Barbosa Filho, Magda Rhayanny Assunção Ferreira, Luiz Alberto Lira Soares, Samuel Paulo Cibulski, Alisson Macário de Oliveira, Thiago Henrique Napoleão   +11 more
wiley   +1 more source

BÍBARA: El Patrimonio documental andaluz más cerca

revista PH, 2000
BÍBARA es una base de datos utilizada para confeccionar una bibliografía archivística andaluza que ha sido elaborada por el Archivo General de Andalucía con motivo del XIV Congreso Internacional de Archivos. Por su ¿arquitectura¿ y por sus contenidos informativos constituye una herramienta de uso fácil y un instrumento importante para el conocimiento ...
openaire   +2 more sources

Evidence of Cheliped Autotomy and Regeneration in the Lower Miocene Crab Achelous monspeliensis From Portugal

Ecology and Evolution, Volume 16, Issue 7, July 2026.
Crab autotomy with evidence of regeneration is described for the first time in the fossil record. Autotomy is a defensive behavior that affects more males than females of Achelous monspeliensis and may be related to mating season. ABSTRACT Autotomy—the voluntary shedding of a limb as a defensive response to predation, intraspecific aggression, or ...
Carlos Neto de Carvalho, Pedro Marrecas
wiley   +1 more source

Patrimônio documental roraimense

Acervo, 2019
Este artigo objetiva apresentar o estado da arte do patrimônio documental roraimense. Parte-se da premissa de que um patrimônio documental é composto por documentos permanentes de cunho histórico.
Tatiana Costa Rosa, Leila Adriana Baptaglin   +1 more
doaj  

Evaluación del estado de preservación de la colección de libros de mecánica del fondo patrimonial del Centro de Investigaciones del Níquel de Moa

Ciencia & Futuro, 2023
Se evaluó el estado de almacenamiento, preservación y conservación de la colección de los libros de la materia de mecánica que integran el fondo patrimonial del Centro de Investigaciones del Níquel, en el municipio Moa.
Yeleyni Guilarte-Aguilera, Yoannia Pérez-Consuegra, Martha M. Romero   +2 more
doaj