Results 71 to 80 of about 2,588,475 (274)

2D Abrupt Nano‐Junctions Blending sp–sp2 Bonds on Atomically Precise Heterostructures

Advanced Materials, EarlyView.
A lateral heterostructure between atomically precise sp–sp2$^2$ metalated graphdiyne and sp2$^2$ graphene nanoribbons is realized by on‐surface synthesis and investigated by STM and DFT. The impact of on‐surface synthesis byproducts on covalent junction formation yield is unveiled.
Alice Cartoceti, Simona Achilli, Masoumeh Alihosseini, Adriana E. Candia, Enrico Beltrami, Paolo D'Agosta, Alessio Orbelli Biroli, Francesco Sedona, Andrea Li Bassi, Jorge Lobo‐Checa, Carlo S. Casari   +10 more
wiley   +1 more source

Waste Education in Teacher Training: Exploring the Role of Context in Shaping Perceptions and Didactic Approaches

Recycling
This study explores how 130 future teachers (FTs) perceive and address massive waste generation when it is framed through two socio-environmental contexts: waste export from affluent to vulnerable countries and microplastic pollution in natural ...
María Ángeles García-Fortes, Patricia Esteve-Guirao, Isabel Banos-González, Magdalena Valverde-Pérez, Ana Ruiz-Navarro   +4 more
doaj   +1 more source

Volatile Memristive Devices With Tunable Temporal Dynamics For Event‐Based Sensing

Advanced Materials, EarlyView.
Tunable volatile memristive devices can serve various neural‐inspired tasks that require different time windows of information retention. The ionic‐based volatility of the presented Pt/a‐STO/TaOx/Ta device stack can be reproducibly and controllably tuned in multiple ways.
Dimitrios Spithouris, Johannes Hellwig, Hugh Greatorex, Clemens Wittberg, Panagiotis Koutsogiannis, César Magén, Elisabetta Chicca, Regina Dittmann   +7 more
wiley   +1 more source

Un estudio del contenido científico de las preguntas formuladas por estudiantes cuando intentan comprender dispositivos experimentales [PDF]

, 2013
Se muestra un análisis descriptivo del contenido científico de las preguntas formuladas por estudiantes de secundaria y universitarios, cuando tratan de comprender el funcionamiento de dispositivos experimentales.
Milicic, Beatriz Estela, Milicic, Beatriz, Sanjosé López, Vicente, Torres Valois, Tarcilo   +3 more
core  

Unconventional Biexciton Dynamics in Superradiant Perovskite Quantum Dots Driven by Many‐Body Correlations

Advanced Materials, EarlyView.
Single‐particle spectroscopy and variational quantum Monte Carlo simulations reveal that strong many‐body correlations fundamentally alter biexciton radiative recombination in weakly confined CsPbBr3 quantum dots. Intra‐ and inter‐exciton correlations reverse the conventional lifetime hierarchy, yielding biexcitons with longer radiative lifetimes than ...
Chenglian Zhu, Jose L. Movilla, Petra Hoffmann, Ihor Cherniukh, Willem P. A. Verheijen, Leon G. Feld, Josep Planelles, Maryna I. Bodnarchuk, Simon C. Boehme, Juan I. Climente, Maksym V. Kovalenko, Gabriele Rainò   +11 more
wiley   +1 more source

Efficient in‐Plane Exciton Transport in a Discontinuous Layered Lead‐Bromide Perovskite

Advanced Materials, EarlyView.
A new class of two‐dimensional lead‐bromide perovskite based on monovalent 4‐aminomethylbenzoic acid cations is presented, featuring a discontinuous inorganic layer. Despite the discontinuous lattice, transient photoluminescence microscopy demonstrates efficient though strongly anisotropic in‐plane exciton transport.
Raquel Utrera‐Melero, Antonella Cutrupi, Ivan Rivilla, Davide Spirito, E. Carolina Sañudo, Juan Cabanillas‐González, Antonio I. Fernández‐Domínguez, Beatriz Martín‐García, Jose Sánchez Costa, Ferry Prins   +9 more
wiley   +1 more source

Gate‐Induced Critical Current Modulation in W–C Nanowires: The Role of Fabrication

Advanced Materials Technologies, EarlyView.
Focused ion beam induced deposition (FIBID) enables precise control of superconducting W–C nanowire devices. Introducing a Ga+ focused ion beam (FIB) cleaning step reduces substrate damage and suppresses leakage currents, shifting gating thresholds to higher voltages.
Alba Arroyo‐Fructuoso, Gregor Hlawacek, Rosa Córdoba   +2 more
wiley   +1 more source

Deciphering Resistome and Virulome Diversity in a Porcine Slaughterhouse and Pork Products Through Its Production Chain

Frontiers in Microbiology, 2018
We aimed to better understand resistome and virulome patterns on animal and process-area surfaces through a pig slaughterhouse to track possible contamination within the food production chain.
Guillermo Campos Calero, Natacha Caballero Gómez, Nabil Benomar, Beatriz Pérez Montoro, Charles W. Knapp, Antonio Gálvez, Hikmate Abriouel   +6 more
doaj   +1 more source

Las representaciones gráficas en ciencias experimentales

, 2015
La presente memoria Fin de Máster constituye una labor de investigación e innovación educativa dentro del área de Didáctica de las Ciencias Experimentales. El objetivo de este trabajo es analizar y minimizar los errores y dificultades que se manifiestan en la interpretación y realización de representaciones gráficas sobre fenómenos físicos y químicos ...
Badía Romano, Laura, Roda Calvera, Víctor, Cascarosa Salillas, Esther   +2 more
openaire   +1 more source

Laser‐Induced Local De‐Doping in Organic Semiconductors

Advanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer, Aleksandr Perevedentsev, Daniel Ryklin, Rasmus R. Schröder, Gerardo Hernandez‐Sosa, Uli Lemmer   +5 more
wiley   +1 more source