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Articles 65 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
11.
20 p, 1.3 MB Cambios en la comprensión de las relaciones entre polígonos en estudiantes de 8-9 años / Bernabeu, Melania (Universitat d'Alacant) ; Moreno Moreno, Mar (Universitat d'Alacant) ; Llinares, Salvador (Universitat d'Alacant)
El objetivo de este estudio es identificar cambios en la comprensión del concepto de polígono y la relación entre polígonos en estudiantes de tercero de educación primaria al participar en un experimento de enseñanza. [...]
This study aims to identify changes in the third-grade students' understanding of the polygon concept and the relationship between polygons when participating in a teaching experiment. We analysed 59 student answers to a test, before and after a teaching sequence, considering the notions of dimensional deconstruction and cognitive apprehensions. [...]
2022 - 10.5565/rev/ensciencias.3208
Enseñanza de las ciencias, Vol. 40 Núm. 2 (2022) , p. 49-70 (Investigaciones Didácticas)  
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12.
15 p, 1.5 MB The Barcelona Brain Health Initiative : A Cohort Study to Define and Promote Determinants of Brain Health / Cattaneo, Gabriele (Institut Germans Trias i Pujol. Institut Guttmann) ; Bartrés-Faz, David (Institut Germans Trias i Pujol. Institut Guttmann) ; Morris, Timothy P. (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Sánchez, Javier Solana (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Macià Bros, Dídac (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Tarrero, Clara (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Tormos, Josep M. (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Pascual Leone, Álvaro (Institut Germans Trias i Pujol. Institut Guttmann)
The Barcelona Brain Health Initiative (BBHI) is an ongoing prospective longitudinal study focused on identifying determinants of brain health. The main objectives are: (i) to characterize lifestyle, cognitive, behavioral and environmental markers related to a given individual's cognitive and mental functions in middle to old age, (ii) to assess the biological determinants predictive of maintenance of brain health, and (iii) to evaluate the impact of a controlled multi-dimensional lifestyle intervention on improving and maintaining brain health. [...]
2018 - 10.3389/fnagi.2018.00321
Frontiers in aging neuroscience, Vol. 10 (october 2018)  
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13.
11 p, 1.4 MB Exploiting two-dimensional morphology of molybdenum oxycarbide to enable efficient catalytic dry reforming of methane / Kurlov, Alexey (ETH Zürich. Department of Mechanical and Process Engineering) ; Deeva, Evgeniya B. (ETH Zürich. Department of Mechanical and Process Engineering) ; Abdala, Paula M. (ETH Zürich. Department of Mechanical and Process Engineering) ; Lebedev, Dmitry (ETH Zürich. Department of Chemistry and Applied Biosciences) ; Tsoukalou, Athanasia (ETH Zürich. Department of Mechanical and Process Engineering) ; Comas-Vives, Aleix (Universitat Autònoma de Barcelona. Departament de Química) ; Fedorov, Alexey (ETH Zürich. Department of Mechanical and Process Engineering) ; Müller, Christoph R. (ETH Zürich. Department of Mechanical and Process Engineering)
The two-dimensional morphology of molybdenum oxycarbide (2D-Mo2COx) nanosheets dispersed on silica is found vital for imparting high stability and catalytic activity in the dry reforming of methane. Here we report that owing to the maximized metal utilization, the specific activity of 2D-Mo2COx/SiO2 exceeds that of other Mo2C catalysts by ca. [...]
2020 - 10.1038/s41467-020-18721-0
Nature communications, Vol. 11 (October 2020) , art. 4920  
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14.
11 p, 2.1 MB Efficient machine-learning based interatomic potentialsfor exploring thermal conductivity in two-dimensional materials / Mortazavi, Bohayra (Leibniz Universität Hannover. Institute of Continuum Mechanics) ; Podryabinkin, Evgeny V. (Skolkovo Innovation Center. Skolkovo Institute of Science and Technology) ; Novikov, Ivan S. (Skolkovo Innovation Center. Skolkovo Institute of Science and Technology) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Rabczuk, Timon (Tongji University. Department of Geotechnical Engineering) ; Zhuang, Xiaoying (Leibniz Universität Hannover. Institute of Continuum Mechanics) ; Shapeev, Alexander V. (Skolkovo Innovation Center. Skolkovo Institute of Science and Technology)
It is well-known that the calculation of thermal conductivity using classical molecular dynamics (MD) simulations strongly depends on the choice of the appropriate interatomic potentials. As proven for the case of graphene, while most of the available interatomic potentials estimate the structural and elastic constants with high accuracy, when employed to predict the lattice thermal conductivity they however lead to a variation of predictions by one order of magnitude. [...]
2020 - 10.1088/2515-7639/ab7cbb
JPhys materials, Vol. 3, Issue 2 (April 2020) , art. 2LT02  
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15.
12 p, 11.9 MB Disentangling orbital and valley Hall effects in bilayers of transition metal dichalcogenides / Cysne, Tarik P. (Universidade Federal Fluminense. Instituto de Física) ; Costa, Marcio (Universidade Federal Fluminense. Instituto de Física) ; Canonico, Luis M. (Institut Català de Nanociència i Nanotecnologia) ; Nardelli, M. Buongiorno. (University of North Texas. Department of Physics) ; Muniz, R. B. (Universidade Federal Fluminense. Instituto de Física) ; Rappoport, Tatiana G. (Universidade Federal Do Rio de Janeiro. Instituto de Física)
It has been recently shown that monolayers of transition metal dichalcogenides (TMDs) in the 2H structural phase exhibit relatively large orbital Hall conductivity plateaus within their energy band gaps, where their spin Hall conductivities vanish [Canonico et al. [...]
2021 - 10.1103/PhysRevLett.126.056601
Physical review letters, Vol. 126, issue 5 (Feb. 2021) , art. 56601  
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16.
32 p, 2.7 MB Ultralow-dielectric-constant amorphous boron nitride / Hong, Seokmo (Ulsan National Institute of Science and Technology. Department of Chemistry) ; Lee, Chang-Seok (Samsung Advanced Institute of Technology. Inorganic Material Lab.) ; Lee, Min-Hyun (Samsung Advanced Institute of Technology. Inorganic Material Lab.) ; Lee, Yeongdong (Ulsan National Institute of Science and Technology. School of Materials Science and Engineering) ; Ma, Kyung Yeol (Ulsan National Institute of Science and Technology. Department of Energy Engineering) ; Kim, Gwangwoo (Ulsan National Institute of Science and Technology. Department of Chemistry) ; Yoon, Seong In (Ulsan National Institute of Science and Technology. Department of Energy Engineering) ; Ihm, Kyuwook Ihm (Pohang Accelerator Laboratory) ; Kim, Ki-Jeong (Pohang Accelerator Laboratory) ; Shin, Tae Joo (Ulsan National Institute of Science and Technology. Department of Chemistry) ; Kim, Sang Won (Samsung Advanced Institute of Technology. Inorganic Material Lab.) ; Jeon, Eun-chae (University of Ulsan. School of Materials Science and Engineering) ; Jeon, Hansol (Ulsan National Institute of Science and Technology. School of Materials Science and Engineering) ; Kim, Ju-Young (Ulsan National Institute of Science and TechnologY. School of Materials Science and Engineering) ; Lee, Hyung-Ik (Samsung Advanced Institute of Technology. Analytical Engineering Group) ; Lee, Zonghoon (Center for Multidimensional Carbon Materials (Ulsan, Corea del Nord)) ; Antidormi, Aleandro (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Chhowalla, Manish (University of Cambridge. Department of Materials Science & Metallurgy) ; Shin, Hyeon-Jin (Samsung Advanced Institute of Technology. Inorganic Material Lab.) ; Shin, Hyeon Suk (Ulsan National Institute of Science and Technology. Low-Dimensional Carbon Materials Center)
Decrease in processing speed due to increased resistance and capacitance delay is a major obstacle for the down-scaling of electronics. Minimizing the dimensions of interconnects (metal wires that connect different electronic components on a chip) is crucial for the miniaturization of devices. [...]
2020 - 10.1038/s41586-020-2375-9
Nature, Vol. 582, issue 7813 (June 2020) , p. 511-514  
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17.
51 p, 1.5 MB Recent advancement in biomedical applications on the surface of two-dimensional materials : from biosensing to tissue engineering / Nguyen, Emily P. (Institut Català de Nanociència i Nanotecnologia) ; De Carvalho Castro Silva, Cecilia (Institut Català de Nanociència i Nanotecnologia) ; Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)
As biosensors and biomedical devices have become increasingly important to everyday diagnostics and monitoring, there are tremendous, and constant efforts towards developing and improving the reliability and versatility of such technology. [...]
2020 - 10.1039/d0nr05287f
Nanoscale, Vol. 12, issue 37 (Oct. 2020) , p. 19043-19067  
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18.
18 p, 1.5 MB Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures / Benítez, L. Antonio (Institut Català de Nanociència i Nanotecnologia) ; Savero Torres, Williams Fernando (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Timmermans, Matias (Institut Català de Nanociència i Nanotecnologia) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Costache, Marius Vasile (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
Spin-orbit coupling stands as a powerful tool to interconvert charge and spin currents and to manipulate the magnetization of magnetic materials through spin-torque phenomena. However, despite the diversity of existing bulk materials and the recent advent of interfacial and low-dimensional effects, control of this interconversion at room temperature remains elusive. [...]
2020 - 10.1038/s41563-019-0575-1
Nature materials, Vol. 19, issue 2 (Feb. 2020) , p. 170-175  
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19.
27 p, 986.9 KB Magnetism, spin dynamics, and quantum transport in two-dimensional systems / Savero Torres, Williams Fernando (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Benítez, L. Antonio (Institut Català de Nanociència i Nanotecnologia) ; Bonell, Frédéric (Université Grenoble-Alpes) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
Two-dimensional (2D) quantum materials offer a unique platform to explore mesoscopic phenomena driven by interfacial and topological effects. Their tunable electric properties and bidimensional nature enable their integration into sophisticated heterostructures with engineered properties, resulting in the emergence of new exotic phenomena not accessible in other platforms. [...]
2020 - 10.1557/mrs.2020.121
MRS Bulletin, Vol. 45, issue 5 (May 2020) , p. 357-365  
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20.
6 p, 3.4 MB Blue emission at atomically sharp 1D heterojunctions between graphene and h-BN / Kim, Gwangwoo (Ulsan National Institute of Science and Technology. Department of Chemistry) ; Ma, Kyung Yeol (Ulsan National Institute of Science and Technology. Department of Energy Engineering) ; Park, Minsu (Korea Advanced Institute of Science and Technology. Department of Materials Science and Engineering) ; Kim, Minsu (Ulsan National Institute of Science and Technology. Department of Chemistry) ; Jeon, Jonghyuk (Seoul National University. Department of Chemistry) ; Song, Jinouk (Korea Advanced Institute of Science and Technology. School of Electrical Engineering) ; Barrios Vargas, José Eduardo (Universidad Nacional Autónoma de México. Departamento de Física y Química Teórica) ; Sato, Yuta (National Institute of Advanced Industrial Science and Technology. Nanomaterials Research Institute) ; Lin, Yung-Chang (National Institute of Advanced Industrial Science and Technology. Nanomaterials Research Institute) ; Suenaga, Kazu (National Institute of Advanced Industrial Science and Technology. Nanomaterials Research Institute) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Yoo, Seunghyup (Korea Advanced Institute of Science and Technology. School of Electrical Engineering) ; Sohn, Byeong-Hyeok (Seoul National University. Department of Chemistry) ; Jeon, Seokwoo (Korea Advanced Institute of Science and Technology. Department of Materials Science and Engineering) ; Shin, Hyeon Suk (Ulsan National Institute of Science and Technology. Low Dimensional Carbon Material Center)
Atomically sharp heterojunctions in lateral two-dimensional heterostructures can provide the narrowest one-dimensional functionalities driven by unusual interfacial electronic states. For instance, the highly controlled growth of patchworks of graphene and hexagonal boron nitride (h-BN) would be a potential platform to explore unknown electronic, thermal, spin or optoelectronic property. [...]
2020 - 10.1038/s41467-020-19181-2
Nature communications, Vol. 11 (2020) , art. 5359  
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