Results 31 to 40 of about 21,247 (201)

Flocculant capacity of hydrocolloid extracted from high Andean algae (Nostoc sphaericum) in the treatment of artificial wastewater: An approach

Case Studies in Chemical and Environmental Engineering, 2023
The treatment of wastewater of domestic sources is composed by a series of procedures for the removal of pollutants, and involves the use of chemicals, for example for the coagulation-flocculation process, and not often, the use of chemical products is ...
Ruth Karina Herbas-De la Cruz, Yudith Choque-Quispe, David Choque-Quispe, Carlos A. Ligarda-Samanez, Sandro Froehner, Dianeth Buleje-Campos, Betsy S. Ramos-Pacheco, Diego E. Peralta-Guevara, Ronald Pérez-Salcedo, Celia Rocio Yauris-Silvera, José Luis Estrada-Pantía, Zaida Olinda Pumacayo-Sanchez   +11 more
doaj   +1 more source

Inteligencia emocional: Asociación con las emociones negativas y desempeño laboral en personal docente universitario

Revista Electrónica Educare, 2022
Objetivo. Se propuso determinar la relación entre la inteligencia emocional, las emociones negativas y el desempeño laboral, y el nivel de estas variables en el personal docente universitario. Método.
William Castro-Paniagua, Abdías Chávez-Epiquén, José Carlos Arévalo-Quijano   +2 more
doaj   +1 more source

Heavy metal removal by biopolymers-based formulations with native potato starch/nopal mucilage

Revista Facultad de Ingeniería Universidad de Antioquia, 2020
The contamination of water bodies by heavy metals is a critical problem for human health and ecosystems, and it can bioaccumulate in organisms to toxic levels and even lead to the living being’s death.
David Choque-Quispe, Betsy Suri Ramos-Pacheco, Carlos Alberto Ligarda-Samanez, Gloria Inés Barboza-Palomino, Aydeé Kari-Ferro, Fredy Taipe-Pardo, Yudith Choque-Quispe   +6 more
doaj   +1 more source

Índice de calidad de agua en la microcuenca altoandina del río Chumbao, Andahuaylas, Apurímac, Perú

Tecnología y ciencias del agua, 2021
El índice de calidad del agua (ICA) de un cuerpo hídrico indica el grado de contaminación para un determinado uso y está relacionado con las actividades antrópicas que suscitan alrededor. El objetivo fue determinar el ICA en la microcuenca altoandina del
David Choque-Quispe, Carlos A. Ligarda-Samanez, Aydeé M. Solano -Reynoso, Betsy S. Ramos-Pacheco, Yadyra Quispe-Quispe, Yudith Choque-Quispe, Aydeé Kari-Ferro   +6 more
doaj   +1 more source

Phenolic Compounds, Antioxidant Capacity, and Protein Content of Three Varieties of Germinated Quinoa (Chenopodium quinoa Willd)

Ingeniería e Investigación, 2021
Quinoa (Chenopodium quinoa Willd) is a pseudocereal with a high nutritional potential and a significant content of bioactive compounds, which is consumed mainly by the inhabitants of the South American Andes.
David Choque-Quispe, Carlos Alberto Ligarda-Samanez, Betsy Suri Ramos-Pacheco, Saida Leguía Damiano, Miriam Calla-Florez, Lourdes Magaly Zamalloa Puma, Luisa Colque Condeña   +6 more
doaj   +1 more source

Multimetal removal in aqueous medium using a potato starch/nopal mucilage copolymer: A study of adsorption kinetics and isotherms

Results in Engineering, 2023
In reducing heavy metals from water for direct or indirect consumption, various synthetic materials have been used; there is a tendency to use natural, biodegradable, and environmentally friendly materials. The aim was to elaborate copolymers with native
David Choque-Quispe, Carlos A. Ligarda-Samanez, Yudith Choque-Quispe, Aydeé M. Solano-Reynoso, Betsy S. Ramos-Pacheco, Miluska M. Zamalloa-Puma, Genaro Julio Álvarez-López, Alan Zamalloa-Puma, Katya Choque-Quispe, Humberto Alzamora-Flores   +9 more
doaj   +1 more source

Study of the pollution by surfactants in a river of a high Andean micro basin

Dyna, 2021
The surfactants linear alkylbenzene sulfonate (LAS), is used in large quantities in modern society, and wastewater containing it can contaminate groundwaters through runoff and sewers.
David Choque-Quispe, Mery Luz Masco-Arriola, Betsy Suri Ramos-Pacheco, Aydeé Marilú Solano-Reynoso, Carlos Alberto Ligarda-Samanez, Yudith Choque-Quispe, Jhunior Felix Alonzo-Lanado   +6 more
doaj   +1 more source

Quena amazónica: expresión artística y cultural en la música peruana

Revista Electrónica Complutense de Investigación en Educación Musical, 2022
La quena (también conocida por qqena, kena, kkena o kkhena) es un aerófono perteneciente a la familia de flautas o instrumentos de viento. Debido a su antigüedad, riqueza de variantes y sonido particular, el Instituto Nacional de Cultura del Perú (INC ...
Yon Govy Ramírez-Rodríguez, Nelly Ríos-Espino, Eliana Gallardo-Echenique   +2 more
doaj   +1 more source

Quantitative and qualitative shifts in defensive metabolites define chemical defense investment during leaf development in Inga, a genus of tropical trees

Ecology and Evolution, Volume 6, Issue 2, Page 478-492, January 2016., 2016
This study provides a detailed assessment of chemical defense investment in a speciose Neotropical tree genus during leaf development. Exploring the leaf metabolome through quantitative and qualitative profiling enables a more comprehensive examination of chemical defense investment at a timescale relevant to leaf development and immediate stressors ...
Natasha L. Wiggins, Dale L. Forrister, María‐José Endara, Phyllis D. Coley, Thomas A. Kursar   +4 more
wiley   +1 more source

Percepción del docente sobre su desempeño ante los cambios curriculares.

Encuentros
El presente estudio se desarrolló con el objetivo de analizar la percepción que los docentes tienen de su desempeño, en relación con los cambios curriculares.
Adonías Julia Villa Calderón, Edwin Daniel Félix Benites, Jorge Augusto Gutiérrez Mendoza, Olinda Suaña Díaz   +3 more
doaj   +1 more source