Buscar recursos académicos

A near-Heyting algebra is a join-semilattice with a greatest element such that every principal upset is a Heyting algebra. We will present several characterizations of the concept of near-Heyting algebra. We will show th...

We study the correlator of concentric circular Wilson loops for arbitrary radii, spatial and internal space separations. For real values of the parameters specifying the dual string configuration, a typical Gross-Ooguri ...

Ombrotrophic peat bogs from Tierra del Fuego are characteristically raised, dome-shaped, fed by precipitation, and nutrient-poor. Their landscape pattern consists of a Sphagnum magellanicum matrix encompassing pools with...

Access to health services is a multidimensional and multistage phenomenon. Despite the extensive development of the theoretical framework of access to health care, until now, no indices have been developed to measure all...

We study a self-interacting scalar φ4 theory on the d-dimensional noncommutative torus. We determine, for the particular cases d= 2 and d= 4 , the counterterms required by one-loop renormalization. We discuss higher loo...

Flavonoids are polyphenolic compounds and color most flowers, fruits and seeds. The regulation of flavonoid biosynthetic genes is directed by ternary complexes composed of MYB-bHLH-WD40 transcription factors. DNA-binding...

In this paper, we consider a general regression model where missing data occur in the response and in the covariates. Our aim is to estimate the marginal distribution function and a marginal functional, such as the mean,...

Food safety is one of the major issues related to fresh fruit and vegetables. Microbial growth is one of the most important causes of post-harvest fruit losses, being fungi the main causal agent associated with the post-...