Results 31 to 40 of about 17,641 (238)

Zonamiento mineralógico con difracción de rayos X para la optimización del tratamiento metalúrgico en el Yacimiento Toromocho

open access: yesRevista del Instituto de Investigación de la Facultad de Minas, Metalurgia y Ciencias Geográficas, 2020
El yacimiento Toromocho es un yacimiento pórfido skarn con una extensión de 5 km por 6 km, geológicamente está constituida por rocas volcánicas del Mitu y calizas del Pucara e intrusivos terciario.
Ronald Eugenio Flores Barrón   +1 more
doaj   +1 more source

Partial Characterization of Novel Bacteriocin SF1 Produced by Shigella flexneri and Their Lethal Activity on Members of Gut Microbiota

open access: yesInternational Journal of Microbiology, Volume 2019, Issue 1, 2019., 2019
A strain of Shigella flexneri producing bacteriocin was isolated from a patient with diarrhea. The main objective of this study was to isolate and partially characterize the bacteriocin. The producing microorganism was identified using biochemical, serological, and molecular methods. The lethal activity of the S.
Carlos Padilla   +4 more
wiley   +1 more source

Synthesis of New (E)‐2‐(1H‐Indole‐3‐ylcarbonyl)‐3‐heteroaryl‐acrylonitriles via Microwave‐Assisted Knoevenagel Condensation

open access: yesJournal of Chemistry, Volume 2017, Issue 1, 2017., 2017
Given the broad spectrum of biological uses of heteroaryl‐acrylonitrile derivatives, it is necessary to find simple methods to synthesize and diversify this family of compounds. We report a stereoselective synthesis of a series of new (E)‐2‐(1H‐indole‐3‐ylcarbonyl)‐3‐heteroaryl‐acrylonitriles (3a–3i) obtained from 3‐(cyanoacetyl)indole and heteroaryl ...
Adriana V. Treuer   +3 more
wiley   +1 more source

Inflammation and clinical repercussions of pleurodesis induced by intrapleural talc administration Repercussões clínicas e inflamatórias de pleurodese induzida pela administração intrapleural de talco

open access: yesClinics, 2007
Although reports on pleurodesis date back to the beginning of the 20th century, the search for the ideal sclerosing agent is ongoing. Several agents have been studied and used, but talc continues to be the most popular.
Eduardo Henrique Genofre   +2 more
doaj   +1 more source

Decentralized Autonomous Hybrid Renewable Power Generation

open access: yesJournal of Renewable Energy, Volume 2015, Issue 1, 2015., 2015
Power extension of grid to isolated regions is associated with technical and economical issues. It has encouraged exploration and exploitation of decentralized power generation using renewable energy sources (RES). RES based power generation involves uncertain availability of power source round the clock.
Prakash Kumar   +2 more
wiley   +1 more source

CARACTERIZAÇÃO TECNOLÓGICA DE METAPIROXENITO DA FORMAÇÃO CÓRREGO DOS BOIADEIROS, NOVA LIMA (MG), BRASIL

open access: yesHolos, 2021
Rochas e minerais industriais são materiais aplicados na produção de uma grande variedade de produtos, usados pela sociedade moderna. Um mesmo mineral ou rocha industrial pode ter diversas aplicações, dependendo de suas propriedades físicas ...
Bruno Trindade Ferreira   +4 more
doaj   +1 more source

Metadolomitos talcificados do Grupo Itaiacoca, Paraná: regime de fluidos e implicações genéticas

open access: yesGeologia USP. Série Científica, 2011
As maiores reservas de talco no Brasil estão localizadas em metadolomitos proterozoicos de baixo grau do Grupo Itaiacoca. Foram analisadas inclusões fluidas em três contextos diferentes de formação de talco.
Danilo Marques Saunite   +3 more
doaj   +1 more source

Fractura de compuestos polipropileno-talco

open access: yes, 2023
La investigación realizada en esta tesis se ha centrado en la caracterización de la fractura de materiales compuestos por una matriz de polipropileno homopolímero isotáctico y diferentes fracciones de partículas laminares de talco. Estos materiales se emplean en la actualidad para la fabricación de piezas por inyección, especialmente en el sector de ...
openaire   +4 more sources

Caddo Ceramic Vessels from the A. C. Gibson Site (41WD1) in the Sabine River Valley, Wood County, Texas [PDF]

open access: yes, 2017
The A. C. Gibson site (41WD1) is an ancestral Caddo site located on a natural knoll at the base of an upland landform, adjacent to the floodplain of the Sabine River and Cedar Lake, an old channel of the river, in southwestern Wood County, in the Post ...
Perttula, Timothy K., Skiles, Bob D.
core   +1 more source

1128. Nothofagus antarctica (G.Forst.) Oerst

open access: yesCurtis's Botanical Magazine, Volume 41, Issue 4, Page 573-586, December 2024.
Summary Nothofagus antarctica, a native of Central & S. Chile to S. Argentina is illustrated. Its history, habitat and conservation status are described. Notes on collecting its seed in Chile and its cultivation in Europe are given.
Jo Wenham   +2 more
wiley   +1 more source

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