Publications by authors named "I Unzueta"

The health damage caused by passive smoking is well known in closed public spaces such as workplaces, inside homes and restaurants. However, at present, the number of smokers in open public spaces such as terraces has increased and consequently a loss of the quality of the air breathed, increasing the concentration of particles and other contaminating agents, affecting the health of workers and customers, of these spaces. Multiple studies show that high exposure to tobacco smoke in these environments augments the risk of developing cardiorespiratory diseases, especially in the vulnerable population, but also respiratory infections.

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An extension of the online implantation chamber used for emission Mössbauer Spectroscopy (eMS) at ISOLDE/CERN that allows for quick removal of samples for offline low temperature studies is briefly described. We demonstrate how online eMS data obtained during implantation at temperatures between 300 K and 650 K of short-lived parent isotopes combined with rapid cooling and offline eMS measurements during the decay of the parent isotope can give detailed information on the binding properties of the Mössbauer probe in the lattice. This approach has been applied to study the properties of Sn impurities in ZnO following implantation of In (T = 2.

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The change in the Curie temperature of single crystalline garnet YFeO (YIG) sample due to lattice damage induced by ion implantation has been investigated in Fe emission Mössbauer Spectroscopy (eMS) following implantation of Mn (T = 1.5 min). The Mössbauer spectra analysis reveal high spin Fe ions substituted on both the octahedral and the tetrahedral sites.

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Positron annihilation lifetime spectroscopy is used to experimentally demonstrate the direct relationship between vacancies and the shift of the martensitic transformation temperature in a Ni_{55}Fe_{17}Ga_{28} alloy. The evolution of vacancies assisting the ordering enables shifts of the martensitic transformation up to 50 K. Our results confirm the role that both vacancy concentration and different vacancy dynamics play in samples quenched from the L2_{1} and B2 phases, which dictate the martensitic transformation temperature and its subsequent evolution.

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Objective: In non-valvular atrial fibrillation (NVAF) with embolic risk, the guidelines recommend oral anticoagulation (OAC), although not all patients receive it. In this study, an attempt is made to identify these patients, and to study factors related to non-anticoagulation.

Material And Methods: Non-interventional, cross-sectional, multicentre study was performed on a population of patients ≥18 years with a NVAF diagnosis, moderate-high embolic risk (CHADS score≥2), not treated with OAC.

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