Results 41 to 50 of about 1,851 (176)

Oxidative Stability and Molecular Reactivity of Biodiesel from Castor and Cottonseed Oil Blends by Homogeneous and Heterogeneous Catalysis

Energy Technology, Volume 13, Issue 11, November 2025.
The oxidative stability of biodiesel from homogeneous and heterogeneous catalysis of castor/cottonseed oil blends is studied. Castor oil's ricinoleic acid improves oxidative stability, acting as a natural antioxidant. Yet, HT catalysis led to lower stability due to catalyst leaching.
Rômulo Batista Vieira, Felipe de Sousa Gomes, Rayssa Layza Lima Xavier, Venicius Henrique Santiago Lima, Ana Clarice Paixão Farias, João Felipe da Silva Barros, Antoninho Valentini, Regina Claudia Rodrigues dos Santos   +7 more
wiley   +1 more source

“RAIO X DO BRASIL”

Revista Hydra: Revista Discente de História da UNIFESP
O artigo apresenta uma análise preliminar dos dados coletados a partir do edital "Prêmio Cultura Viva Construção Nacional do Hip-Hop" (Seleção nº 10/2023), promovido pelo Ministério da Cultura. A iniciativa buscou mapear a diversidade da cultura Hip-Hop no Brasil, destacando a importância dessa expressão cultural enquanto movimento de resistência e ...
Maurício De Sena Monteiro, Ellen Gonzaga de Lima Souza, Priscilla Marques Campos   +2 more
openaire   +1 more source

3D Printed Conical Slits for Seeking Calcium Spots Among Different Tissue‐Equivalent Materials

X-Ray Spectrometry, Volume 54, Issue 6, Page 765-772, November/December 2025.
ABSTRACT The identification of the chemical composition as well as the crystal structure of a microcalcification (MC) is a valuable marker for determining the type of breast neoplasm. Di‐hydrated calcium oxalate (DHCO—weddellite phase) MCs are mostly related to benign breast disease.
Renata Olmedo Benedet, Paula Regina dos Santos, Cesar Cusatis, Martin E. Poletti, Marcelo G. Hönnicke   +4 more
wiley   +1 more source

CARACTERIZAÇÃO DE ROCHAS RESERVATÓRIO POR MICROTOMOGRAFIA DE RAIOS X

Holos, 2015
Reservatórios de petróleo são rochas sedimentares com porosidade e permeabilidade suficientes para armazenar e permitir o fluxo de hidrocarbonetos. Testemunhos das rochas reservatório são coletados para a caracterização e obtenção de dados petrofísicos ...
Leandro Palombo, Carina Ulsen, Daniel Uliana, Fabrizzio Rodrigues Costa, Marcio Yamamoto, Henrique Kahn   +5 more
doaj   +1 more source

Catalysis With Deep Eutectic Solvents: Challenges and Opportunities

ChemCatChem, Volume 17, Issue 11, June 6, 2025.
Deep eutectic solvents (DESs) are emerging as sustainable alternatives in catalysis, offering tunable properties for diverse chemical transformations. This review explores the dual role of DESs as solvents and catalysts, highlighting advancements in organic chemistry, materials science, CO2 fixation, biomass valorization, polymer degradation, and ...
Eduardo Guzmán
wiley   +1 more source

Relação entre perfil de densidade e ligação interna de painéis OSB de Pinus spp

Floresta e Ambiente
O presente trabalho teve por objetivos determinar a densidade aparente de painéis OSB de Pinus taeda e Pinus elliottii var. elliottii × Pinus caribaea var.
Paula Gabriella Surdi, Geraldo Bortoletto Jr., Vinicius Resende Castro, Rafael Farinassi Mendes, Natalie Ferreira de Almeida, Mario Tomazello Filho   +5 more
doaj   +1 more source

CARACTERIZAÇÃO E ESTUDO DA LIXIVIAÇÃO DE METAIS DE ESCÓRIAS PROVENIENTES DA RECICLAGEM DE BATERIAS DE CHUMBO-ÁCIDO

Holos, 2014
No Brasil, o chumbo metálico é obtido principalmente a partir da reciclagem de baterias de chumbo-ácido utilizando o processo pirometalúrgico, que é acompanhado da geração de uma escória que apresenta elementos como Fe, Si, S, Al, Ca, Zn, Pb.
Michelli Barbosa de Andrade, Wilson Costa, André Vitor Chaves Andrade   +2 more
doaj   +1 more source

Development of a SNP Panel for Geographic Assignment and Population Monitoring of Jaguars (Panthera onca)

Ecology and Evolution, Volume 15, Issue 5, May 2025.
We have developed a genome‐enabled single nucleotide polymorphism (SNP) panel for use in jaguar geographic traceability, individual identification, kinship, and sexing. Our panel, named “Jag‐SNP”, comprises 459 SNPs selected from an initial pool of 13,373,949 markers based on the inter‐biome FST, followed by rigorous filtering and addition of eight sex‐
Gabriele Zenato Lazzari, Henrique Vieira Figueiró, Caroline Charão Sartor, Emiliano Donadio, Sebastián Di Martino, Hope M. Draheim, Eduardo Eizirik   +6 more
wiley   +1 more source

Chronic Stress May Amplify Gender/Sex Differences in Amygdala Reactivity to Ambiguous Emotional Stimuli

Stress and Health, Volume 41, Issue 2, April 2025.
ABSTRACT Heightened reactivity to ambiguous emotional stimuli, such as surprized faces, is a transdiagnostic psychopathology risk factor. Women show elevated amygdala activation to ambiguous emotional stimuli relative to men, which may underlie their significantly higher risk for mood disorders. Moreover, there are sex/gender differences in the effects
Tierney Lorenz, Nicholas Harp, Jordan E. Pierce, Peter Angeletti, Maital Neta   +4 more
wiley   +1 more source

Assessing the transcriptional landscape of Pseudomonas phage 201ϕ2‐1: Uncovering the small regulatory details of a giant phage

Microbial Biotechnology, Volume 17, Issue 10, October 2024.
Transcriptomic studies on jumbo phages have been limited. From a phage biology perspective, insights into their transcriptome will improve our understanding of how they regulate their infection cycle. Moreover, phage transcriptomic studies are valuable for sourcing regulatory elements which can be exploited in microbial synthetic biology to tune gene ...
Jorien Poppeliers, Mathijs Focquet, Maarten Boon, Marjan De Mey, Julie Thomas, Rob Lavigne   +5 more
wiley   +1 more source