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- R B Rodrigues, N F Svaiter, R D M De P Aola
- 2001

Using the heat kernel method and the analytic continuation of the zeta function, we calculate the canonical and improved vacuum stress tensors, T µν (x) and Θ µν (x), associated with a massless scalar field confined in the interior of an infinitely long rectangular waveguide. The local depence of the renormalized energy for two special configurations when… (More)

- R B Rodrigues, N F Svaiter
- 2002

An analysis of one-loop vacuum fluctuations associated with a scalar field confined in the interior of a infinite waveguide of rectangular cross section is presented. We first consider the massless scalar field defined in a four-dimensional Euclidean space. To identify the infinities of the vacuum fluctuations we use a combination of dimensional and zeta… (More)

- R B Rodrigues, N F Svaiter
- 2001

An analysis of the one-loop vacuum fluctuations associated with a massless scalar field, confined in the interior of a rectangular infinitely long waveguide is presented. To identify the infinities of the vacuum fluctuations we are using different analytic regularization procedures, instead of the usual point-splitting Green's function method. The… (More)

- Régis Silva Anécimo, Karina A. A. Tonani, +5 authors Susana I. Segura-Muñoz
- Interdisciplinary perspectives on infectious…
- 2012

Latin America, Africa, and Asia present wide dissemination and high prevalence rates of waterborne parasitic diseases, which is a strong indicative of the fragility of public sanitation systems. In this context, parasitological analyses represent extremely relevant instruments. Several parasite diagnosis methods exist, among which Ritchie's method (1948)… (More)

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