Ricerc@Sapienza

Tourmalines from the late-Variscan Arbus pluton (SWSardinia) and its metamorphic aureole were structurally
and chemically characterized by single-crystal X-ray diffraction, electron and nuclear microprobe analysis,
Mössbauer, infrared and optical absorption spectroscopy, to elucidate their origin and relationships with the
magmatic evolution during the pluton cooling stages. The Arbus pluton represents a peculiar shallow magmatic
system, characterized by sekaninaite (Fe-cordierite)-bearing peraluminous granitoids, linked via AFC processes

In human-affected fire environments, assessing the influence of human activities on the spatial distribution of wildfire ignitions is of paramount importance for fire management planning. Previous studies have shown that roads have significant effects on fire ignition. However, since different land cover classes are subject to different levels of ignition risk, roads in different land cover classes may differently affect fire ignition.

Growing evidence suggests that microRNAs (miRNAs) play a key role in beta-cell metabolism, proliferation and apoptosis, and in immune system functions, all processes involved in the pathogenesis of type 1 diabetes.
In the context of diabetes, particular attention has been focused on miR-375, which has been studied most extensively as a putative biomarker of beta cell death. Although dysregulated miRNA profiles have been identified in type 1 diabetes patients, results are inconclusive.

An Iron Age bronze axe was found in Motya (Sicily, Italy) in a prehistoric layer dating from the 10th century BC underneath the 4th century BC patrician residency known as “Casa dei mosaici”. The axe belongs to the double-looped socketed type well known in central Mediterranean in the time span 1200-900 BC, and it is comparable with some coeval Sardinian specimens. The bronze has been characterised using the backscattering electron signal of a SEM (Scanning Electron Microscope) and EDX (Energy Dispersive X-ray Spectroscopy).