4 resultados para Supergeometry LCQFT Supersimmetries Supermanifolds Lorentzian manifold Super-Cartan
em Biblioteca Digital da Produção Intelectual da Universidade de São Paulo
Resumo:
The process of metapsychologic concepts development in Freud`s works is not linear; on the contrary, it oscillates, with comings and goings, temporary abandonments, ambiguities, contradictions. Within key metapsychology concepts, the concept of superego is certainly complex and troublesome, for not only it holds many definitions but its scope is also wide. From clinic to metapsychology, going across the theory of culture, the superego plays a role in all aspects of psychoanalytic investigation, misunderstandings appearing quite frequently, therefore, among those who comment it. In addition to it, Freud himself was no faithful historian of his own concepts. The present paper proposes to undo a few ambiguities in what concerns the evolution process of ego conception, beginning from a fundamental metapsychologic problem, which is the remake of the notion of ego. We support that changes in the ego theory were crucial to the elaboration of conceptual basis of super-ego in its legislative function. We will see that the super-ego begins its story as a discreet tenant to the ego to become tyrannical and usurper, threatening the ego integrity.
Resumo:
The present work aimed to estimate heritability and genetic correlations of reproductive features of Nellore bulls, offspring of mothers classified as superprecocious (M1), precocious (M2) and normal (M3). Twenty one thousand hundred and eighty-six animals with average age of 21.29 months were used, evaluated through the breeding soundness evaluation from 1999 to 2008. The breeding soundness features included physical semen evaluation (progressive sperm motility and sperm vigour), semen morphology (major, minor and total sperm defects), scrotal circumference (SC), testicular volume (TV) and SC at 18 months of age (SC18). The components of variance, heritability and genetic correlations for and between the features were estimated simultaneously by restricted maximum likelihood, with the use of the vce software system vs 6. The heritability estimates were high for SC18, SC and TV (0.43, 0.63 and 0.54; 0.45, 0.45 and 0.44; 0.42, 0.45 and 0.41, respectively for the categories of mothers M1, M2 and M3) and low for physical and morphological semen aspects. The genetic correlations between SC18 and SC were high, as well as between these variables with TV. High and positive genetic correlations were recorded among SC18, SC and TV with the physical aspects of the semen, although no favourable association was verified with the morphological aspects, for the three categories of mothers. It can be concluded that the mothers sexual precocity did not affect the heritability of their offspring reproduction features.
Resumo:
By computing the two-loop effective potential of the D=3 N=1 supersymmetric Chern-Simons model minimally coupled to a massless self-interacting matter superfield, it is shown that supersymmetry is preserved, while the internal U(1) and the scale symmetries are broken at two-loop order, dynamically generating masses both for the gauge superfield and for the real component of the matter superfield.
Resumo:
The ferromagnetic Ising model without external field on an infinite Lorentzian triangulation sampled from the uniform distribution is considered. We prove uniqueness of the Gibbs measure in the high temperature region and coexistence of at least two Gibbs measures at low temperature. The proofs are based on the disagreement percolation method and on a variant of the Peierls contour method. The critical temperature is shown to be constant a.s.