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214.439  Articles
1 of 21.445 pages  |  10  records  |  more records»
This work derives the Lagrangean hydrodynamic representation of the Dirac field that, by using the minimum action principle in the non-Euclidean generalization, can possibly lead to the formulation of the Einstein equation as a function of the fermion fie... see more

Thesaurus Theoriis Circa Gravitatis et Cetera is a compilation subdivided into two chapters, containing the complete research developed during author's post-doctoral period at the Brazilian Center of Physics Research - CBPF, Rio de Janeiro (2016 - 20... see more

The existence of charged elementary ’point particles’ still is a basically unsolved puzzle in theoretical physics.The present work takes a fresh look at the problem by including gravity—without resorting to string theory. Using Einstein’s equations for th... see more

In  theory of gravity, we have studied the combination of perfect fluid with scalar field interacting with electromagnetic fields in Bianchi type I space-time, by considering the general cases ,  and  theory and its particular cases , , . I... see more

The 3D spectral analysis of the gravitational potential field for a given mass distribution is studied. The derived quantities, the gravitational force field and the gravity gradient tensor are computed in frequency space. As an example, the fields are th... see more

New theoretical description of well-known physical phenomena are announced. 1. The description of wave interaction in plasma in terms of spontaneous and stimulated processes is discussed. Such a description is not only attractive from the methodologi... see more

A Colocação por Mínimos Quadrados tem sido utilizada em Geodésiaprincipalmente para modelagem do campo da gravidade terrestre. Este trabalhomostra uma aplicação da Colocação na transformação de coordenadas envolvendoduas realizações do SAD69 no Brasil. A ... see more

Supersymmetry arises in certain theories of fermions coupled to gauge fields and gravity in a spacetime of 11 dimensions. The dynamical brane background has mainly been studied for the class of purely bosonic solutions only, but recent developments involv... see more

Researchers have used electric fields as a new therapeutic strategy to treat cancer for the past 15 years. Tumor Treating Fields (TTFields) is an alternating electric field-based cancer therapy approved by the US FDA to treat glioblastoma multiforme (GBM)... see more

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