OBJECTIVE: This systematic review aims to synthesize articles, abstracts and reports of HIV prevalence studies conducted among men who have sex with men (MSM) and female sex workers (FSW) in Latin America and the Caribbean (LAC). MATERIALS AND METHODS: Authors…

This article analyzes Giorgio Morandi's works and trajectory with regard to his participation in both the Italian Metaphysical School and the regional group of Strapaese. His self-portraits and still lifes show that Morandi's articulation of a metaphysical aesthetic engaged with…

Oat (Avena sativa L.) is a cereal grain, its seeds are rich in nutrients, is consumed as whole grain with health benefits fot humans due to its antioxidants, such as the avenanthtamides (Avns). The contents of Avns 2c, 2f and…

The consequences of the Clifford structure of Nambu mechanics with more than one multiplet are presented. The only case considered is that in which S triplets are present

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We solve the Klein-Gordon equation in the presence of a spatially one-dimensional Woods-Saxon potential. The bound state solutions are derived. The pair creation mechanism and the antiparticle bound state are discussed.

We discuss the mechanism of production of positrons and electrons by a spatially homogeneous time-dependent electric field whose amplitude vanishes for large values of time. Using the Hamiltonian diagonalization technique, we compute the density of particles created as a function…

A new heat operator with N = 1 supersymmetry is proposed. We study the symmetries of the corresponding heat kernel , which generalizes the bosonic one in a natural way. We used these symmetries to obtain, in the asymptotic limit,…

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