Multiparentalidade e exercício do poder familiar: desafios e implicações ao direito de família em transformação

The purpose of this article is to examine how family power materializes in multiparenting situations. It is noteworthy that possible conflicts may arise when exercising paternity or simultaneous motherhood, a fact that in fact requires a thorough study, given the lack of legislation specific to the theme, as well as the extent of the legal effects produced by it. Using the various doctrinal concepts regarding the family, the exercise of family power and multiparenthood, the study derives mainly from bibliographical, doctrinal and jurisprudential research, through qualitative research, as deductive method, using logic and deduction to obtain yourself an answer to the problem. As a possible conclusion, it is understood that it is necessary that the social-affective parents are guaranteed the same rights and duties as the biological parents, without having one paternity or maternity prevail over the other. Although the term may be considered recent, the jurisprudence is proving to be peaceful, since with the general repercussion thesis established by the Supreme Court in the judgment of RE 898.060, it was noticed the inclination of the other courts to support this issue, maintaining the two forms of paternity without excluding the family power of the other.O presente artigo tem por finalidade examinar como o poder familiar se consubstancia em situações de multiparentalidade. É cediço ressaltar que eventuais conflitos podem surgir diante do exercício da paternidade ou maternidade simultânea, fato que deveras necessita de um estudo aprofundado, haja vista a inexistência de legislação específica ao tema, assim como, quanto a extensão dos efeitos jurídicos produzidos por ela. Utilizando-se dos diversos conceitos doutrinários quanto à família, exercício do poder familiar e multiparentalidade, o estudo decorre principalmente de pesquisa bibliográfica, doutrinaria e jurisprudencial, por meio de pesquisa qualitativa, conforme método dedutivo, utilizando-se da lógica e da dedução para obter-se uma resposta ao problema. Como possível conclusão, entende-se que se faz necessário que sejam garantidos aos pais socioafetivos os mesmos direitos e deveres assegurados aos pais biológicos, sem que uma paternidade ou maternidade prevaleça sobre a outra. Embora o termo possa ser considerado recente, a jurisprudência vem se revelando pacífica, vez que com a tese de repercussão geral fixada pelo STF no julgamento do RE nº 898.060 percebeu-se a inclinação dos demais tribunais em amparar esse tema, mantendo-se as duas formas de paternidade sem que seja excluído o poder familiar da outra

The overlap lattice Dirac operator and dynamical fermions

I show how to avoid a two level nested conjugate gradient procedure in the context of Hybrid Monte Carlo with the overlap fermionic action. The resulting procedure is quite similar to Hybrid Monte Carlo with domain wall fermions, but is more flexible and therefore has some potential worth exploring.Comment: Further expanded version. 12 pages, plain Te

Chiral fermions on the lattice

Chiral fermions resisted being put on the lattice for twenty years. This raised the suspicion that asymptotically free chiral gauge theories were not renormalizable outside perturbation theory and therefore could not be mathematically extended to infinite energies. During the last several years the situation has reversed itself. Today we believe that all the essential ingredients for a full lattice definition of non-anomalous chiral gauge theories are in place within the overlap construction. This construction is based on earlier work by Callan and Harvey, by Kaplan and by Frolov and Slavnov. It can be reinterpreted as coming from the Ginsparg-Wilson relation, but, at the moment, it is a unique construction and therefore might also be the way by which Nature itself regularizes chiral fermions. This is yet another instance in which lattice field theory makes a potentially important contribution to fundamental particle physics.Comment: 10 pages, latex, espcrc2.st

Vortices and domain walls in a Chern-Simons theory with magnetic moment interaction

We study the structure and properties of vortices in a recently proposed Abelian Maxwell-Chern-Simons model in $2 +1$ dimensions. The model which is described by gauge field interacting with a complex scalar field, includes two parity and time violating terms: the Chern-Simons and the anomalous magnetic terms. Self-dual relativistic vortices are discussed in detail. We also find one dimensional soliton solutions of the domain wall type. The vortices are correctly described by the domain wall solutions in the large flux limit.Comment: To be published in Phys RevD 23 pages, RevTex, 5 figure

Vacuum structure for expanding geometry

We consider gravitational wave modes in the FRW metrics in a de Sitter phase and show that the state space splits into many unitarily inequivalent representations of the canonical commutation relations. Non-unitary time evolution is described as a trajectory in the space of the representations. The generator of time evolution is related to the entropy operator. The thermodynamic arrow of time is shown to point in the same direction of the cosmological arrow of time. The vacuum is a two-mode SU(1,1) squeezed state of thermo field dynamics. The link between expanding geometry, squeezing and thermal properties is exhibited.Comment: Latex file, epsfig, 1 figure, 21 page