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Circularly polarized alfven and ion cyclotron waves in space plasmas
(1995)
The linear and nonlinear theory of circularly-polarized Alfvdn and ion-cyclotron waves in multicomponent plasmas is reviewed. It is shown that minor heavy- ion components play an important role in the dispersive properties ...
Husserl on Geometry and Spatial Representation
(Springer, 2012-03-01)
Husserl left many unpublished drafts explaining (or trying to) his views on spatial representation and geometry, such as, particularly, those collected in the second part of Studien zur Arithmetik und Geometrie (Hua XXI), ...
Adversus singularitates: the ontology of space-time singularities
(Springer, 2013-01)
I argue that there are no physical singularities in space-time. Singular space-time models do not belong to the ontology of the world, because of a simple reason: they are concepts, defective solutions of Einstein´s ...
Some dynamical properties of a classical dissipative bouncing ball model with two nonlinearities
(2013-04-15)
Some dynamical properties for a bouncing ball model are studied. We show that when dissipation is introduced the structure of the phase space is changed and attractors appear. Increasing the amount of dissipation, the edges ...
On the structure of physical space
(World Scientific Publ Co Pte LtdSingaporeSingapura, 2001)
On the structure of quantum phase space
(1990-12-01)
The space of labels characterizing the elements of Schwinger's basis for unitary quantum operators is endowed with a structure of symplectic type. This structure is embodied in a certain algebraic cocycle, whose main ...
Marginally trapped submanifolds in Lorentzian space forms and in the Lorentzian product of a space form by the real line
(American Institute of Physics, 2015-02)
We give local, explicit representation formulas for n-dimensional spacelike submanifolds which are marginally trapped in the Minkowski space R1 n+2 , the de Sitter space dSn+2, the anti-de Sitter space AdSn+2 and the ...
THE ORGANIZATION OF SPACES FOR BABIES AND SMALL CHILDREN IN THE OFFICIAL DOCUMENTS OF CHILD EDUCATION
(Univ Estadual Paulista Julio Mesquita Filho, Fac Ciencias & Tecnologia, 2017-09-01)
The article is the result of the master's research From space to place: contributions to the organization of spaces for infants and young children, linked to the Postgraduate Program in Education of FCT / UNESP of Presidente ...
The quality of the physical environment of outdoor academiesA qualidade do ambiente físico de academias ao Ar livre
(2020-01-01)
Outdoor gyms (AAL's) are contemporary urban infrastructures designed to encourage physical exercise in open spaces, whether public or private. They exert an influence on the urban environment and provide a broad field of ...
Public spaces leisure in Rio Claro - SP (Brazil): Quality, distribution, and social vulnerability
(2021-01-01)
Aim: Describe public leisure spaces in a city in the state of São Paulo, associating distribution, quantity, and quality of attributes to the São Paulo Index of Social Vulnerability (IPVS). Methods: Descriptive observational ...