Results 21 to 30 of about 450,964 (236)

determinación de bacteriocinas en muestras de consorcios microbianos nativos de ecosistemas de manglar en el departamento del atlántico, como fuente potencial de nuevos tratamientos biomédicos

open access: yesBiociencias, 2017
Los manglares son ecosistemas con gran diversidad microbiana; la presión de las condiciones físicas de este, se ha relacionado con la producción de metabolitos con estructuras moleculares únicas para los microorganismos. Dado el desarrollo de resistencia
Vanessa Galván Carbonó
doaj   +1 more source

CO2 Capture, Use, and Storage in the Cement Industry: State of the Art and Expectations

open access: yesEnergies, 2020
The implementation of carbon capture, use, and storage in the cement industry is a necessity, not an option, if the climate targets are to be met. Although no capture technology has reached commercial scale demonstration in the cement sector yet, much ...
Marta G. Plaza   +2 more
doaj   +1 more source

Revealing the Importance of Iron Aerogel Features as Electrocatalysts for the Oxygen Reduction Reaction

open access: yesGels
Metal nanoparticles supported in carbon materials are the traditional electrocatalyst currently used in many applications. However, these composite materials have many problems associated with the optimization of both components for the specific ...
Judith González-Lavín   +2 more
doaj   +1 more source

Synthesis of the O-linked hexasaccharide containing b-D-Galp-(1→2)- D-Galf in Trypanosoma cruzi mucins. Differences on sialylation by trans-sialidase of the two constituent hexasaccharides [PDF]

open access: yes, 2015
The hexasaccharide b-D-Galp-(1?2)-[b-D-Galp-(1?3)]-b-D-Galp-(1?6)-[b-D-Galp(1?2)-b-D-Galf(1?4)]- D-GlcNAc (10) and its b-D-Galf-(1?2)-b-D-Galf containing isomer (7) are the largest carbohydrates in mucins of some strains of Trypanosoma cruzi.
Agusti, Rosalia   +5 more
core   +1 more source

Sistema arbolado nativo y carbono en el Cantón Palenque, Provincia de los Ríos, Ecuador

open access: yesRevista Científica de Ciencias Naturales y Ambientales, 2021
El presente estudio tuvo como objetivo evaluar el carbono en un sistema arbolado nativo del Cantón Palenque, Provincia de los Ríos, Ecuador; donde se establecieron dos cuadrantes al azar, de 50 x 50m2 en el interior del bosque nativo de la Estación ...
Patricia Mero, Carmita Bonifaz
doaj   +1 more source

Nanotubos de carbono

open access: yesCadernos UniFOA, 2022
Nas últimas décadas, a nanotecnologia vem promovendo uma revolução tecnológica responsável por impulsionar a economia de diversos países. Dentre os nanomateriais mais utilizados, os nanotubos de carbono (NTC) se destacam por suas propriedades específicas.
openaire   +1 more source

Porous carbons with complex 3D geometries via selective laser sintering of whey powder

open access: yesScientific Reports
In addition to the inherent limitations of carbons to melt or flow, a vast majority of carbon precursors deforms during carbonisation, with stereolithography of thermoset resins being the preferred technology for 3D printing of carbons. An alternative is
Raúl Llamas-Unzueta   +3 more
doaj   +1 more source

Provisão de serviços ecossistêmicos pelo solo de um fragmento florestal do Brejo Paraibano

open access: yesRevista de Ciências Agroveterinárias, 2023
O avanço das atividades agropecuárias sobre os remanescentes de Mata Atlântica de Altitude do Nordeste acarretou na formação de fragmentos de floresta que precisam ser melhor entendidos.
Letícia Moro   +4 more
doaj   +1 more source

Comparative field‐scale assessment of TLUD and Kon‐Tiki biochar systems: agronomic performance and net CO2e‐based techno‐economics

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Post‐harvest agricultural residues in Latin America are commonly underutilized, leading to greenhouse gas emissions and lost opportunities for bio‐based value creation. This study tests the hypothesis that decentralized, farmer‐scale pyrolysis technologies can deliver comparable agronomic benefits while exhibiting distinct techno‐economic and ...
Juan F. Saldarriaga   +7 more
wiley   +1 more source

A sustainable ecofriendly-synthesis of carbon foams from sugarcane, benefiting the waste to obtain activated carbons

open access: yesIndustrial Crops and Products
This study demonstrates, for the first time, that unprocessed sugarcane juice (SCJ) can be used directly as a sustainable precursor for the synthesis of carbon foams, yielding materials comparable to those obtained from commercial sucrose while avoiding ...
Roberto García   +5 more
doaj   +1 more source

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