In the paper, a corporate feed antenna array with slot radiators and a layer of polarizing patches is designed to operate at 350 GHz.The antenna is conceived as a silicon structure fully metalized by gold.Different methods final audio sonorous vi for modeling thin gold layers at terahertz frequencies are compared and the optimum approaches are chos
Sustainable use of endogenous touristic resources of rural areas: two portuguese case studies
Empirical evidence shows that tourism can give a real contribution to regional development and, in the case of certain remote and economic lagged territories, it is one of the best sectors to achieve this goal.This role of tourism as to do, namely, with the possibility of taking profit from the endogenous resources endowment of these territories.Me
Dicer is required for haploid male germ cell differentiation in mice.
BACKGROUND: The RNase III pride empire bowling ball endonuclease Dicer is an important regulator of gene expression that processes microRNAs (miRNAs) and small interfering RNAs (siRNAs).The best-characterized function of miRNAs is gene repression at the post-transcriptional level through the pairing with mRNAs of protein-encoding genes.Small RNAs c