Let La(z) = a1z1+a2z2 + ... + aNzN be a linear form in N complex variables z1,z2,...,zN with non-zero coefficients. We establish several estimates for the logarithmic Mahler measure of La. In general, we show that the ...

En el siguiente texto se muestra la relación entre la preservación de la medida de funciones $1$-Lipschitz $f:\mathbb{Z}_p(\sqrt{\eta})\rightarrow \mathbb{Z}_p(\sqrt{\eta})$, y sus coeficientes en los desarrollos en las ...

On current knowledge, it has not been possible to determine the sex of Blue-fronted Amazons (Amazona aestiva) in the hand, as males and females were thought not to differ in the colour of plumage or size. We used discriminant ...

We present the first spatially resolved analysis of rest-frame optical and UV imaging and spectroscopy for a lensed galaxy at z = 2.39 hosting a Seyfert active galactic nucleus (AGN). Proximity to a natural guide star has ...

Two possible patterns of bias in primary sex ratio have been proposed for size-dimorphic brood parasites that do not evict host chicks: (1) larger males should be laid at greater frequency in hosts larger than the parasite ...

Genetic differentiation among shiny cowbird (Molothrus bonariensis) females that use different hosts indicates that in this brood parasite, host use is not random at an individual level. We tested whether there exist ...

We present the first spatially resolved analysis of rest-frame optical and UV imaging and spectroscopy for a lensed galaxy at z =2.39 hosting a Seyfert active galactic nucleus (AGN). Proximity to a natural guide star has ...

Differences in song between species of birds are often the most reliable criteria by which to identify them. Thus, the study of the evolution of bird song provides biologists with a powerful insight into the nature of ...

High levels of antibodies against the C-terminus of the Trypanosoma cruzi TcP2β ribosomal protein, defined by the peptide EEEDDDMGFGLFD, named R13, have been measured in sera from patients with chronic Chagas' Heart Disease ...