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Mostrando publicaciones 1-14 de 14

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  • Comparative study of three dyes’ adsorption onto activated carbon from chenopodium quinoa willd and quillaja saponaria 

    Abril, Diana ORCID; Ferrer, Victor; Mirabal-Gallardo, Yaneris; Cabrera-Barjas, Gustavo; Segura, Cristina; Marican, Adolfo; Pereira, Alfredo; Durán-Lara, Esteban F.; Valdés, Oscar (2022)
    The present study shows porous activated carbon obtained from Chenopodium quinoa Willd and Quillaja saponaria and their use as potential adsorbents to remove three types of dyes from aqueous solutions. The adsorption results ...

  • Comparison of the oxidative stability and antioxidant activity of extra-virgin olive oil and oils extracted from seeds of Colliguaya integerrima and Cynara cardunculus under normal conditions and after thermal treatment 

    abril, diana ORCID; Mirabal-Gallardo, Yaneris; González, Aymeé; Marican, Adolfo; Durán-Lara, Esteban F.; Silva Santos, Leonardo; Valdés, Oscar (2019)
    We investigated the potential of two oil extracts from seeds of Colliguaya integerrima (CIO) and Cynara cardunculus (CO) to use as nutritionally edible oils. For this purpose, oil quality was accessed by determining the ...

  • Conductivismo y constructivismo. ¿Qué modelo usar? 

    abril, diana ORCID; Bichara-Adrobez, Rodrigo; Lara, Alejandro; Jiménez, Francisco; Vidal, Ignacio (2011)
    En este trabajo comparamos los resultados académicos obtenidos por dos grupos de estudiantes que fueron enseñados con dos modelos pedagógicos distintos: constructivismo y conductismo. Ambos grupos estaban compuestos por ...

  • Development of eco-friendly polyurethane foams based on Lesquerella fendleri (A. Grey) oil-based polyol 

    Contreras-González, Jorge; Valdés-Lizama, Oscar; Mirabal-Gallardo, Yaneris; De la Torre, Alexander F.; Navarrete, José; Lisperguer, Justo; Durán-Lara, Esteban F.; Santos, Leonardo S.; Nachtigall, Fabiane M.; Cabrera-Barjas, Gustavo; abril, diana ORCID (2020)
    In this study, we investigated the potential of polyurethane foams (LPUF) prepared from Lesquerella fendleri (A. Grey) oil-derived polyol to use as an ecological and cheap substitute for the petroleum-based polyurethane ...

  • Ideas previas sobre la química en alumnos que ingresan a la carrera de pedagogía en ciencias de la Universidad Católica del Maule, Chile 

    abril, diana ORCID; Miño-González, Luis; Rodríguez-Gallardo, Marcelo (2013)
    Se describen preconcepciones sobre química en alumnos que ingresan a la Pedagogía en Ciencias. Se aplicaron dos test, uno de conocimientos de química y un test KPSI para declarar lo que creen saber sobre los contenidos. ...

  • Kinetic and adsorption isotherms of polyamine on bleached pulp of sugar cane bagasse 

    abril, diana ORCID; Abril, Alejandro (2016)
    This work presents the results of a study of kinetic and adsorption isotherms of a cationic polyamine on bleached pulp of sugar cane bagasse. Polyamine was synthesized at laboratory scale and used in an experimental trial ...

  • Obtención y caracterización de carbones activados preparados a partir de cenizas volantes de una planta de cogeneración en Constitución, Chile 

    Contreras-González, Jorge; abril, diana ORCID (2013)
    El alto costo de la producción de carbones activados (CA) ha llevado a la búsqueda de nuevas materias primas de bajo costo y alta disponibilidad, en donde las cenizas volantes (CV) surgen como una alternativa a ser ...

  • Preparation of renewable bio-polyols from two species of colliguaja for rigid polyurethane foams 

    abril, diana ORCID; Mirabal-Gallardo, Yaneris; Bustamante, Carlos; Contreras-González, Jorge; Valdés-Lizama, Oscar; De la Torre, Alexander F. (2018)
    In this study, we investigated the potential of two non-edible oil extracts from seeds of Colliguaja integerrima (CIO) and Colliguaja salicifolia (CSO) to use as a renewable source for polyols and, eventually, polyurethane ...

  • Simple approach for cleaning up 2,4,6-trichloroanisole from alcoholic-beverage-reconstituted solutions using polymeric materials 

    Valdés, Oscar; Marican, Adolfo; Avila-Salas, Fabian; Castro, R. I.; Mirabal-Gallardo, Yaneris; Amalraj, John; abril, diana ORCID; Durán-Lara, Esteban F.; Santos, Leonardo S. (2019)
    Background and Aims: 2,4,6-Trichloroanisole (TCA) is a well-recognised contaminant in the wine and whisky industries. In this work, several polymeric materials were tested through a hybrid strategy (computational and ...

  • Sugar cane bagasse prehydrolysis using hot water 

    abril, diana ORCID; Medina, M.; Abril, Alejandro (2012)
    Results are presented on the hot water prehydrolysis of sugar cane bagasse for obtaining ethanol by fermentation. The experimental study consisted of the determination of the effect of temperature and time of prehydrolysis ...

  • Synthesis of gum acacia capped polyaniline-based nanocomposite hydrogel for the removal of methylene blue dye 

    Jayaramudu, Tippabattini; Pyarasani, Radha D.; Akbari-Fakhrabadi, A.; abril, diana ORCID; Amalraj, John (2021)
    In this research work, a novel gum acacia capped polyaniline-based nanocomposite hydrogel (GPA NCHs) was developed and evaluated for the adsorptive removal of cationic methylene blue dye (MB) from aqueous solutions. Firstly, ...

  • Trimethylsilyl azide-promoted acid-amine coupling: a facile one-pot route to amides from carboxylic acids and amines 

    Tangella, Yellaiah; Prakash Soni, Jay; Shankaraiah, Nagula; abril, diana ORCID; Sathish, Manda (2023)
    A versatile and efficient one-pot protocol has been developed for the synthesis of amides from easily accessible carboxylic acids and amines by employing trimethylsilyl azide as a promoter at room temperature. This ...

  • Ugi efficient synthesis of novel N–alkylated lipopeptides, antimicrobial properties and computational studies in Staphylococcus aureus via MurD antibacterial target 

    Valdes, Oscar; Ali, Akbar; Carrasco-Sánchez, Verónica; Cabrera-Barjas, Gustavo; Duran-Lara, Esteban; Ibrahim, Muhammad; Ahmad, Sajjad; Moreno, Rachel; Concepción, Odette; De la Torre, Alexander F.; Abrar, Muhammad; Morales-Quintana, Luis; abril, diana ORCID (2023)
    Lipopeptides are medicinally essential building blocks with strong hemolytic, antifungal and antibiotic potential. In the present research article, we are presenting our findings regarding the synthesis of N–alkylated ...

  • Volatiles from Lapageria rosea Ruiz et Pav. red flower 

    Pino, Jorge A.; abril, diana ORCID; Contreras-Fernández, Domingo; Lamí-Izquierdo, Laura; Lorenzo-Izquierdo, Magdalena (2013)
    The chemical composition of the volatile compounds isolated by simultaneous distillation–extraction with diethyl ether from red flowers of red copihue (Lapageria rosea) growing in Chile was investigated by gas ...

Sistema de Bibliotecas de la Universidad Católica del Maule, 2017
Campus San Miguel, Talca. Teléfono (56) (71) 2-203 359
Campus Nuestra Señora del Carmen, Curicó. Teléfono (56) (75) 2203 111
Campus San Isidro, Los Niches. Teléfono (56) (75) 2203 617