Results 51 to 60 of about 1,077,223 (343)
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal +3 more
wiley +1 more source
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá +7 more
wiley +1 more source
Can ISO/IEC 17025 serve as a tool to prevent scientific fraud in chemical research laboratories?
Abstract Scientific fraud has been documented across multiple disciplines, and chemistry is no exception. Recent studies indicate that contamination of materials, methodological errors, and unreliable data, results, or analyses account for over 25% of retracted publications.
Flor Monica Gutierrez‐Alcantara
wiley +1 more source
Endoscopic ultrasound is a diagnostic and therapeutic technique used in specialized centers for patients that have undergone digestive procedures. This technique enables highly precise real-time imaging of the digestive tract wall and surrounding organs.
Manuel Marina-Breysse +4 more
doaj +1 more source
Influence of Structural Stiffness and Loss Factor on Railroad Vehicle Comfort
This paper presents a new formulation for analyzing a beam on elastic supports traveling on irregular profiles. The model is a first approximation of a passenger railway vehicle car body.
Publio Pintado +5 more
doaj +1 more source
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume +1 more
wiley +1 more source
Introducción: Han surgido dudas sobre la seguridad de los fármacos inhibidores del sistema renina-angiotensina (SRA) en pacientes con enfermedad por coronavirus 2019 (COVID-19).
Martín Negreira-Caamaño +7 more
doaj +1 more source
“Smart City Overseer ” es un panel de control que permite gestionar los servicios de la ciudad de una manera eficiente por medio de la obtención de la información en tiempo real del estado, tanto real como virtual, de la ciudad y sus incidencias para ...
González Jiménez, Christian +1 more
core +1 more source
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel +4 more
wiley +1 more source
El poblamiento ibérico en el Alto Guadiana [PDF]
This paper presents the results of the recent research on the Iberian Iron Age sites conducted in the Upper Guadiana basin of the Ciudad Real province (Castilla-La Mancha).
García Huerta, Rosario +1 more
core +2 more sources

