A5081589390- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Experimental Learning in Engineering
- Teaching and Learning Programming
- Science Education and Pedagogy
- Galaxies: Formation, Evolution, Phenomena
- Quantum Chromodynamics and Particle Interactions
- Education and Digital Technologies
- Particle physics theoretical and experimental studies
- Innovative Teaching and Learning Methods
- Geophysics and Gravity Measurements
- Educational Games and Gamification
- Education Pedagogy and Practices
- Engineering Education and Pedagogy
- Distributed and Parallel Computing Systems
- Experimental and Theoretical Physics Studies
- Geological Modeling and Analysis
- Mobile Learning in Education
- Business and Management Studies
- Water-Energy-Food Nexus Studies
- Solar and Space Plasma Dynamics
- Water resources management and optimization
- Innovative Teaching Methods
- Academic integrity and plagiarism
- Mechanics and Biomechanics Studies
Autonomous University of Lisbon
2017-2022
Universidade Nova de Lisboa
2008-2020
Universidade Federal do Rio de Janeiro
2017
Ministry of Education
2012
Iscte – Instituto Universitário de Lisboa
2010
University of Algarve
2001-2008
Instituto Superior Técnico
2006
Institute of Astrophysics and Space Sciences
2006
Durham University
1996-1997
We investigate the dynamics of a spherically symmetric vacuum on Randall and Sundrum 3-brane world. Under certain natural conditions, effective Einstein equations brane form closed system for dark radiation. determine exact dynamical inhomogeneous solutions, which are shown to depend cosmological constant, radiation tidal charge its initial energy configuration. identify conditions defining these solutions as singular or globally regular. Finally, we discuss confinement gravity vicinity show...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Rui Gomes Neves, Vítor Duarte Teodoro; Improving science mathematics education with computational modelling in interactive engagement environments. AIP Conf. Proc. 26 September 2012; 1479 (1): 1806–1809. https://doi.org/10.1063/1.4756529 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends...
In the Randall-Sundrum scenario we investigate dynamics of a spherically symmetric 3-brane world when matter fields are present in bulk. To analyze 5-dimensional Einstein equations employ global conformal transformation whose factor characterizes ${Z}_{2}$ warp. We find new set exact dynamical collapse solutions which localize gravity vicinity brane for stress-energy tensor weight -4 and warp that depends only on coordinate fifth dimension. Geometries describe inhomogeneous dust generalized...
Knowledge about mathematical physics models and scientific computation methods is of fundamental importance for contemporary modelling processes in science, technology, engineering mathematics (STEM). Physics teaching STEM education should thus envision the integration learning sequences with computational that ensure epistemological cognitive balance between experimentation, theory, foster development meaningful knowledge physics, computation, ways appropriate to different contexts. We...
Solutions of the Polchinski exact renormalization group equation in scalar O(N) theory are studied. Families regular solutions found and their relation with fixed points is established. Special attention devoted to limit N = ∞, where many properties can be analyzed analytically.
Abstract Contemporary science, technology, engineering and mathematics (STEM) increasingly require advanced knowledge about mathematical physics models methods of scientific computation. In STEM educational environments this entails the necessity to implement pedagogical curricula methodologies that epistemologically balance inclusion interactive engagement sequences computational modelling activities, offer students opportunities develop meaningful physics, computation, as well specific...
The development of knowledge and cognition in physics other fields contemporary science, technology, engineering mathematics (STEM) is based on modelling processes increasingly requiring advanced methods scientific computation. Physics education for STEM should then involve learning sequences featuring activities with computational technologies. Such manifest epistemological cognitive balance between theory, experimentation computation, be interactively collaborative, ensure the meaningful...
report research involving human subjects, in accordance with its mission: to disseminate epidemiological knowledge applicable surveillance, prevention and disease control relevant Public Health.This aims describe the ethical considerations presented original articles published from 2014 (v.23, n. 1) 2016 (v. 25, 1).One hundred forty-seven were (10 issues), 8 excluded because they did not subjects.We checked for description of following items Methods section: Human Research Ethics Committee...
We investigate the Polchinski ERG equation for d-dimensional O(N) scalar field theory. In context of non-perturbative derivative expansion we find families regular solutions and establish their relation with physical fixed points Special emphasis is given to large N limit which many properties can be studied analytically.
The path integral approach is applied to describe the propagation of photons in bounded homogeneous turbid media. Introducing a new controlled perturbative expansion centred on diffusion limit, analytic solutions for continuous wave reflectance and transmittance are determined, as relevant non-invasive measurements tissue optical properties based photon migration instruments. A comparative analysis with approximation radiative transfer theory made show that non-diffusive effects enhanced...
We investigate the dynamics of Randall-Sundrum AdS 5 braneworlds with 5-dimensional conformal matter fields.In scenario a compact fifth dimension class fields weight -4 is associated exact warped geometries which are stable under radion field perturbations and describe on brane inhomogeneous dust, generalized dark radiation homogeneous polytropic energy.We analyse graviton mode flutuations around this background solutions determine their mass eigenvalues wavefunctions from Sturm-Liouville...