Results 151 to 160 of about 6,035,346 (313)

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo   +3 more
wiley   +1 more source

Universidad

open access: yes, 2014
el folio 66 es un informe de una universidad sin identificar y el folio 67 es un proyecto de crear una escuela de medicina y jurisprudencia posiblemente en Bogotá. Documentos incompletos.
openaire   +1 more source

Tomada de Posse do Reitor, Universidade Aberta, 3 de maio de 2006 [PDF]

open access: yes, 2006
Eventos - Atos OficiaisSessão solene da Tomada de Posse do Reitor da Universidade Aberta, professor doutor Carlos Reis, dia 3 de maio de 2006, no Palácio Ceia, sede da Universidade Aberta, em Lisboa:
Universidade Aberta
core  

Annatto‐Derived Carotenoids (Bixin and Norbixin) As Biodiesel Antioxidants: Characterization and Effects on Oxidative Stability (Rancimat and PetroOXY)

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Annatto‐derived bixin and norbixin were characterized and evaluated as natural antioxidants for soybean biodiesel. Their antioxidant performance and effects on oxidative stability were assessed using DPPH, Rancimat, and PetroOXY methods. ABSTRACT The increasing use of eco‐friendly fuels is increasing the production of biodiesel but soybean biodiesel is
Marco Aurélio da Silva Coutinho   +4 more
wiley   +1 more source

Teología y universidad

open access: yesCuestiones Teológicas, 2013
En la preocupante crisis de la Universidad y su papel en la formación del ser humano, son múltiples las preguntas y desafíos que acompañan el trasegar de la academia. Pero, sobre todo, estos momentos instan a valorar la contribución de la Universidad católica en la formación del sentido humano integral.
openaire   +2 more sources

Universidade empreendedora [PDF]

open access: yes, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnológicoUniversidades sempre foram sinônimo de órgão máximo do sistema educacional regular de qualquer país do mundo, instrumento de preservação da cultura nacional e universal, e
Rothenbühler, Renata
core  

Liquid–Liquid Equilibrium Data for Refined Olive Pomace Oil + Oleic Acid + Ethanol + Water Systems: Application to Solvent Deacidification

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT This study presents the first experimental liquid–liquid equilibrium (LLE) data for quaternary systems composed of refined olive pomace oil, oleic acid, ethanol, and water at 303.15 K. These data are essential for the design and optimization of solvent‐based deacidification processes, particularly for oils with high free fatty acid (FFA ...
Jacqueline Mansano Ortega   +5 more
wiley   +1 more source

Universidades

open access: yes, 2016
Nunca fue tan claro como en este siglo XXI que saber es poder, algo que las elites siempre supieron. En la Argentina nunca tuvimos aristocracia y hoy ni siquiera tenemos oligarquía, sino sólo una aspiración elitista de alguna riqueza concentrada que sintetiza su pensamiento bajo el lema de no avivar giles. La polarización del siglo XX está sepultada en
openaire   +1 more source

Conversas Abertas na Universidade. Ética, tradição e boas maneiras no ensino universitário

open access: yes, 2023
Programa produzido pela Universidade Aberta, emitido ao abrigo de uma parceria com a RTPA jornalista Teresa Botelheiro conversa com Guilherme d’Oliveira Martins, figura de destaque na política e cultura portuguesas, acerca da tão falada crise de valores,
Universidade Aberta
core  

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva   +3 more
wiley   +1 more source

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