We investigate the use of multi-term query concepts to improve the performance of text-retrieval systems that accept \natural-language" queries. A relevance feedback process is explained that massively expands an initial query with single and multi-term concepts. The multi-term concepts are modelled as a set of words appearing within windows of varying sizes. Experimental results suggest that w...

Considering as distance between two two-party correlations the minimum number of half bits required to be transmitted from one party to the other in order to turn one correlation into the other, we show that the volume of the set of physically obtainable correlations 〈AiBj〉 in the EPR-Bell scenario, where A0 and A1 (B0 and B1) are two alternative dichotomic experiments on subsystem A (on a dist...

MicroRNAs (miRNAs) have emerged as key regulators of gene expression. Intragenic miRNAs account for ∼50% of mammalian miRNAs. Classic studies reported that they are usually coexpressed with host genes. Here, using genome-wide miRNA and gene expression profiles from five sample sets, we show that evolutionarily conserved ('old') intragenic miRNAs tend to be coexpressed with host genes, but non-c...

The objective of the present study was to investigate factors associated with cesarean sections in two cities located in different regions of Brazil and to determine factors that explain the higher cesarean section rate in the more developed city, Ribeirão Preto, compared to the less developed one, São Luís. Data from two cohort studies comprising 2846 women in Ribeirão Preto in 1994, and 2443 ...

OBJECTIVE REM sleep behavior disorder (RBD) is associated with psychiatric symptoms, such as anxiety and alexithymia. However, only a few studies on the relationship between depression and RBD have been published. In this study, we investigated the occurrence of depression and associated factors in patients with RBD. METHODS In total 94 patients (mean age: 61.9±12.7 years, male: 70.2%) diagno...