BUSCADOR RECOLECTA

Graphene oxide (GO) is acquiring a great interest in biomedicine, biotechnology and biochemistry due to its unique properties. However, GO layers are bound by van der Waals forces, which results in aggregation. An efficient dispersion of the aggregated nanostructures is crucial from an application viewpoint, hence eco-friendly procedures are pursued. In this project, the potential of tannic acid (TA) as a GO dispersant in water has been investigated for the first time. Transmission electronic microscopy (TEM) was used to visualize the degree of GO exfoliation in the dispersions. To further assess TA dispersant capability, a fluorescent biomolecule, riboflavin, has been selected. GO and TA cause a quenching effect on riboflavin fluorescence, which depends on the GO and TA concentration, the GO/TA weight ratio and the final centrifugation step that was found to be crucial. Multiple regression analysis has been used to determine the quenching constants for TA and GO simultaneously. The GO-riboflavin interaction weakens upon centrifugation. This step, traditionally used to remove the nanomaterial aggregates, should be avoided to obtain a high GO concentration in the dispersions. This study paves the way towards the use of environmentally friendly dispersant agents instead of conventional organic solvents or synthetic surfactants to attain high-quality dispersions of carbon nanomaterials in water.

Project developed by Giovanni Federico (Università di Pisa) and Antonio Tena Junguito (Universidad Carlos III de Madrid). This data base outlines changes in world trade from 1800 to 2016. Dataset: Bermuda

Project developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Montserrat

Educational escape rooms aims to motivate students, to strengthen knowledge and evaluate learning. Pre-service teachers enrolled in “Computer Science and Digital Competency” course shows lack of motivation and difficulties to realise its usefulness in everyday practice, becoming an ideal context to apply this strategy. 157 students belonging to a European university participated in the experience as case study. The educational escape room was conducted following a hybrid model, mixing a physical organization of props with a virtual organization of the narrative, tests and achievements. The experiment was designed to answer two hypotheses, first if applying escape room as an educational strategy fosters pre-primary and primary students’ motivation, since this method address complex concepts in a practical way, and second, if the application of this strategy as teaching strategy makes students perceive the learning process as a game.

Project developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: China

Project developed by Giovanni Federico (New York University Abu Dhabi) and Antonio Tena Junguito (Universidad Carlos III de Madrid). Dataset: Peru

Project developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Morocco

Project developed by Giovanni Federico (New York University Abu Dhabi) and Antonio Tena Junguito (Universidad Carlos III de Madrid). Dataset: Suriname (Dutch Guiana)

Two excell files are provided: * Microstrain signals long_mov_M6.xlsx: The complete and raw data set with the experimental measurements performed on the tire test bench for different low speeds (details included in figures) and vertical loads. Slip angle of 0 degrees. * Microstrain signals long_mov_M14.xlsx: The complete and raw data set with the experimental measurements performed on the tire test bench for different high speeds (details included in figures) and vertical loads. Slip angle of 0 degrees.

Comercio y contrabando con Portugal: antes se iba más allá, ahora vienen más ellos. Historia de Olivenza. Lugares por los que atravesaban los contrabandistas. A veces se accidentaban y morían en el río. Productos. Alguna gente de Olivenza hacía contrabando de subsistencia en Badajoz o Madrid. No hacían fiestas con portugueses, aunque sí se visitaban unos a otros. Las relaciones son mejores ahora que antes., Comércio e contrabando com Portugal: antes costumavam ir mais longe, agora vêm mais eles. História de Olivença. Lugares por onde passaram os contrabandistas. Por vezes, tiveram acidentes e morreram no rio. Produtos. Algumas pessoas de Olivenza contrabandearam para a subsistência em Badajoz ou Madrid. Não festejaram com os portugueses, embora se tivessem visitado uns aos outros. As relações são melhores agora do que antes., Trade and smuggling with Portugal: before they used to go further afield, now they come more. History of Olivenza. Places through which the smugglers passed. Sometimes they had accidents and died in the river. Products. Some people from Olivenza smuggled for subsistence in Badajoz or Madrid. They didn't party with the Portuguese, although they did visit each other. Relations are better now than before.