Results 41 to 50 of about 2,813 (177)

Anatomy and ontogeny of the pericarp of Pterodon emarginatus Vogel (Fabaceae, Faboideae), with emphasis on secretory ducts

open access: yesAnais da Academia Brasileira de Ciências, 2008
Discrepant and incomplete interpretations of fruits of Pterodon have been published, especially on the structural interpretation of the pericarp portion that remain attached to the seed upon dispersal. The present work clarified these doubts and analyzed
Élder A.S. Paiva   +2 more
doaj   +1 more source

Vacuum Infusion as a Processing Route for Transparent Wood Laminates

open access: yesPolymer Composites, EarlyView.
Schematic representation of the fabrication route for transparent wood laminates, including wood veneer delignification, epoxy resin impregnation by vacuum infusion processing, and the final TW‐1 transparent wood laminate. ABSTRACT Transparent wood (TW) has attracted increasing attention as a bio‐based material for daylighting and building‐envelope ...
Letícia Zimermann Pires   +7 more
wiley   +1 more source

Microfiltración de resinas Bulk Fill vs resinas convencionales: revisión sistemática

open access: yesKillkana Salud y Bienestar, 2022
Objetivo: Evaluar el grado de microfiltración de las resinas bulk fill comparado con las resinas convencionales. Metodología. La presente revisión sistemática se realizó de acuerdo a las directrices de la declaración del PRISMA. Se estableció como pregunta PICO ¿Cuál es el grado de Micro filtración de la resina Bulk Fill comparadas con las resinas ...
Jaime Terán-Calle   +5 more
openaire   +1 more source

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

Optimización del proceso VARTM, para el prototipado de un guardachoque, utilizando materiales compuestos híbridos

open access: yesIngenius: Revista de Ciencia y Tecnología
Con el fin de brindar una alternativa para la manufactura de autopartes utilizando materiales compuestos, se aplicó el proceso VARTM en el prototipado del guardachoque del vehículo Chevrolet Aveo.
Diego Javier Jiménez-Pereira   +1 more
doaj   +1 more source

Resina epoxi reforzada

open access: yesIngenia Materiales, 2023
Este experimento trata de comprobar cuál es el resultado de crear un bloque de resina epoxi reforzada con fibra de vidrio y fibra de aramida, así como estudiar qué propiedades se obtienen sometiendo, el resultado de la fabricación, a diversos ensayos y qué posibles aplicaciones podría tener en la industria.
Baquero, A.   +3 more
openaire   +1 more source

Patch Test Reactions to Dental Materials: A Retrospective Single‐Centre Study

open access: yesContact Dermatitis, EarlyView.
In this retrospective single‐centre study of 439 adults referred for suspected delayed‐type hypersensitivity to dental materials, 50.1% had at least one positive patch test reaction, most often to metals. Nickel (23.0%) and palladium (16.6%) pre‐dominated, whilst methacrylate positivity was uncommon (6.2%) and not fully captured by HEMA alone.
Mojca Bizjak‐Suran   +3 more
wiley   +1 more source

Reparação de múltiplas fístulas broncopleurais periféricas por oclusão brônquica selectiva com catéter de Swan-Ganz

open access: yesRevista Portuguesa de Pneumologia, 1995
RESUMO: As fístulas broncopleurais (FBP) constituem um problema clínico frequente mas de resolução complicada, sobretudo em doentes sob ventilação mecânica.
Carlos Glória, Luís Reis
doaj   +1 more source

Antifouling capacity of substrate materials and their effects on settlement and post‐settlement survival of Acropora palmata and Orbicella faveolata

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction In coral reef restoration, sexual reproduction is a key methodology to enhance coral population recovery. However, post‐settlement survival remains a major bottleneck, as spat are particularly vulnerable to competition with fouling organisms.
Laura C. Arango‐Carvajal   +5 more
wiley   +1 more source

Influência do tratamento de superfície na resistência adesiva

open access: yesBrazilian Dental Science, 2010
O objetivo deste trabalho foi avaliar in vitro a resistência adesiva de reparos em compósitos, utilizando diferentes tratamentos de superfície. Quarenta corpos de prova de resina composta (Filtek Supreme, 3M-Espe) foram envelhecidos artificialmente e ...
Paula C. Cardoso   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy