Italy has long been regarded as the country with negligible non-marital cohabitation par excellence, but lately the pattern has begun to change and entry into consensual unions has increased strongly in younger Italian generations. This article is devoted to a study of such features between 1980 and 2003 based on the data from the Italian variant of the Gender and Generations Survey, Round 1. W...

‘Tagged MRI’ techniques have been used during the past years to predict which tongue muscles are activated during the production of vowels and for non-speech gestures. Using this technique, tongue muscle activation inferences are based on the hypothesis that a significant distortion of the anatomical region of a tongue muscle is evidence of voluntary muscle activation. In this paper, we propose...

We study a notion ofò-amorphous' (in set theory without the axiom of choice) which bears the same relationship tòo-minimal' asàmorphous' (studied in ?]) does tòstrongly minimal'. A linearly ordered set is said to be o-amorphous if its only subsets are nite unions of intervals. This turns out to be a relatively straightforward case, and we can provide a completèclassiication', subject to the sam...

We establish basic properties of cluster algebras associated with oriented bordered surfaces with marked points. In particular, we show that the underlying cluster complex of such a cluster algebra does not depend on the choice of coefficients, describe this complex explicitly in terms of “tagged triangulations” of the surface, and determine its homotopy type and its growth rate.

In the northern Gulf of Mexico (GOM), whale sharks ( Rhincodon typus ) form large aggregations at continental shelf-edge banks during summer; however, knowledge movements once they leave aggregation sites is limited. Here we report on seasonal occurrence in GOM based over 800 shark sightings from 1989 to 2016, as well 42 tagged with satellite-linked and popup satellite archival transmitting tag...

We establish basic properties of cluster algebras associated with oriented bordered surfaces with marked points. In particular, we show that the underlying cluster complex of such a cluster algebra does not depend on the choice of coefficients, describe this complex explicitly in terms of “tagged triangulations” of the surface, and determine its homotopy type and its growth rate.

Infertility is a major reproductive health threat; the frequency of male infertility due to Y-chromosome microdeletions is 13-18% in the human population; these microdeletions involve recurrent loss of three non-overlapping regions designated as AZFa, AZFb and AZFc, associated with spermatogenic failure. Several contradictory reports have been published regarding deletion frequency based on seq...