Results 31 to 40 of about 98,646 (203)

Estancia corta : una oportunidad para identificar, desarrollar y evaluar el nivel de desarrollo de algunas competencias en alumnos de Ingeniería Química [PDF]

, 2009
En este trabajo con carácter exploratorio, se presenta la identificación de algunas competencias desarrolladas que manifiestan estudiantes de la carrera de Ingeniería Química I. Q.
Flores Almazán, S., Méndez Chavez, L., Trejo, L.   +2 more
core   +2 more sources

Abstracts

, 2021
Research and Practice in Thrombosis and Haemostasis, Volume 5, Issue S2, October 2021.
wiley   +1 more source

Influence of Van der Waals Interactions on the Solvation Energies of Adsorbates at Pt‐Based Electrocatalysts

ChemPhysChem, Volume 20, Issue 22, Page 2968-2972, November 19, 2019., 2019
Water solvation modifies the adsorption energies of *OH, and therefore, also the oxygen‐reduction activity of Pt electrocatalysts. The authors show that *OH solvation on Pt(111) near‐surface alloys depends on the exchange‐correlation functional used and whether long‐range interactions are included or not.
Laura P. Granda‐Marulanda, Santiago Builes, Marc T. M. Koper, Federico Calle‐Vallejo   +3 more
wiley   +1 more source

Improving the Efficiency of a Bioreactor Equipped With Mixed‐Flow Impellers

Chemical Engineering &Technology, Volume 48, Issue 7, July 2025.
The present work investigated the biological performance of mixed‐flow impellers. To the authors’ knowledge, this is the first experimental study on such impellers in a fermentation process using A. vinelandii, which was chosen as a microorganism due to its high oxygen demand.
David Posadas‐Navarro, Said Carrillo‐Tavera, María Soledad Córdova, Mauricio Trujillo‐Roldán, Marco Ramírez‐Argáez, Edtson Herrera‐Valencia, Gabriel Ascanio   +6 more
wiley   +1 more source

Effect of Microwave or Ultrasound Irradiation in the Extraction from Feather Keratin

Journal of Chemistry, Volume 2019, Issue 1, 2019., 2019
The extraction of feather keratin biopolymer structures was studied using chicken feathers as a biomass material by the cold acid hydrolysis reaction; the recrystallization stage was performed using microwave or ultrasound irradiation, and conduction heating was used as a reference.
Isis S. Rodríguez-Clavel, Silvia P. Paredes-Carrera, Sergio O. Flores-Valle, Eri J. Paz-García, Jesús C. Sánchez-Ochoa, Rosa M. Pérez-Gutiérrez, Dario Pasini   +6 more
wiley   +1 more source

The Cyclin‐Dependent Kinase activity modulates the central carbon metabolism in maize during germination

Physiologia Plantarum, Volume 177, Issue 1, January/February 2025.
Abstract The cell cycle is predominantly controlled by Cyclins/Cyclin‐Dependent Kinases (Cyc/CDK) complexes, which phosphorylate targets involved in cellular proliferation. Evidence suggests that Cyc/CDK targets extend beyond traditional proteins and include enzymes that regulate the central carbon metabolism.
Aurora Lara‐Núñez, Sara Margarita Garza‐Aguilar, José Carlos Páez‐Franco, Juan de Dios Galindo‐de‐la‐Rosa, Vanessa Vallejo‐Becerra   +4 more
wiley   +1 more source

Cyanobacterial Biomass Pigments as Natural Sensitizer for TiO2 Thin Films

International Journal of Photoenergy, Volume 2019, Issue 1, 2019., 2019
In this work, we studied the effect of TiO2 sensitization with dry biomass extracted of cyanobacteria on the degradation of methylene blue dye (AM). Cyanobacterial cultures isolated from water samples were collected from the swamp of Malambo in Colombia; two main genera of cyanobacteria were identified, and they were cultivated with BG‐11 culture ...
Karen Patiño-Camelo, Carlos Diaz-Uribe, Euler Gallego-Cartagena, William Vallejo, Vincent Martinez, Cesar Quiñones, Mikel Hurtado, E. Schott, Zofia Stasicka   +8 more
wiley   +1 more source

Propuesta de asignaturas en la disciplina matemática para Ingeniería Química en la Universidad Camagüey Cuba [PDF]

, 2012
La reubicación de los contenidos en las asignaturas de la Disciplina Matemática para la carrera de Ingeniería Química de la Universidad de Camagüey persigue mejorar la situación docente de los estudiantes del primer año de dicha carrera.
Bueno, Seydel, Mola, Cila, Rodríguez, María Lourdes, Ruiz, José Manuel, Sampedro, Reinaldo   +4 more
core  

Estructuras conceptuales tridimensionales. Auxiliares en el aprendizaje de la química [PDF]

, 2009
Hasta ahora, el uso de mapas conceptuales constituye una valiosa experiencia didáctica, pudiéndose aplicar en todas las fases del proceso educativo. En el ámbito del aprendizaje, ha demostrado ser un instrumento eficaz para el logro del conocimiento. Sin
Domínguez Pérez, A., Ortiz Esquivel, L., Reza García, J.   +2 more
core   +1 more source

Capacidad y uso de tecnología: estudio a nivel de los procesos electroquímicos Review

Revista Venezolana de Gerencia, 2020
En este trabajo se realiza el análisis de la capacidad y el uso de la tecnología en los procesos electroquímicos para generar energía, además de los estados más importantes que inciden en el desarrollo de varias técnicas electroquímicas y celdas de ...
Sandra Emperatriz Peña Murillo, Gonzalo Iván Villa Manosalva, Sandra Mirella del Con Ronquillo Castro   +2 more
doaj