Results 71 to 80 of about 1,539,435 (245)

Combustión de carbón vegetal, enemigo latente del medio ambiente

open access: yesSabia Revista Científica, 2020
El presente artículo emerge de una investigación, la cual se plantea como objetivo generar una estrategia medio ambiental que permita minimizar el impacto de la calidad del aire producida por la combustión del carbón vegetal en la población de Barrio ...
Mary Lucero Valencia Cuero
doaj   +1 more source

Influencia de los soportes en la actividad catalítica de nanopartículas de Pd y Au-Pd corazón-envolvente en la electrooxidación del metanol [PDF]

open access: yes, 2017
60 páginas. Maestría en Ciencias e Ingeniería de Materiales.En el presente trabajo, catalizadores de Pd (20% en peso de carga de metal) fueron sintetizados y soportados en carbón Vulcan XC72R (C), polvo de diamante (DP, Diamond Powder) y óxido de titanio
HERRERA TORIBIO, REY DAVID
core  

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

Emisiones de CO, CO2 y SO2 durante procesos de calentamiento de coque y carbón compactado y no compactado [PDF]

open access: yes, 2013
La autoignición de sustancias pulverulentas sigue siendo un gran problema hoy en día, causando una gran cantidad de pérdidas humanas y en las instalaciones.
Fernández Áñez, María de las Nieves   +3 more
core  

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Compuestos orgánicos presentes en aguas de escombreras de carbón. [PDF]

open access: yes, 2008
Se ha realizado un estudio de la influencia de las aguas acidas de mina en la movilización de los hidrocarburos policidicos aromáticos (PAHs) presentes en las escombreras de carbón. Se observa como dichas aguas acidas disuelven preferentemente a los PAHs
Canoira López, Laureano   +5 more
core   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

open access: yesFEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli   +9 more
wiley   +1 more source

Caracterización estructural por adsorción y difracción de rayos X de monolitos de carbón activado a partir de cáscara de coco y cuesco de palma africana [PDF]

open access: yes, 2009
Se prepararon monolitos de carbón activado tipo disco utilizando como precursores por separado cáscara de coco y cuesco de palma africana mediante la activación química con ácido fosfórico, utilizando diferentes concentraciones, sin el uso de ningún ...
Giraldo-Gutiérrez, Liliana   +2 more
core  

Evaluation of in vitro toxicity of common phytochemicals included in weight loss supplements using 1H NMR spectroscopy

open access: yesFEBS Open Bio, EarlyView.
We investigated the toxicity of 12 active compounds commonly found in herbal weight loss supplements (WLS) using human liver and colon cell models. Epigallocatechin‐3‐gallate was the only compound showing significant toxicity. Metabolic profiling revealed protein degradation, disrupted energy and lipid metabolism suggesting that the inclusion of EGCG ...
Emily C. Davies   +3 more
wiley   +1 more source

The communicative Umwelt for creative design, addressing the psychology of sustainability, to solve future global challenges

open access: yesFrontiers in Psychology
Design does not emerge solely from individual creativity but from ongoing interactions between humans and their Umwelt—the subjective, meaning-structured world through which environments are perceived, interpreted, and acted upon.
Claus-Christian Carbon   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy