Istituto Nazionale di Astrofisica

This multidisciplinary study integrates geobotanical and geochemical analyses, employing a green protocol, to identify key factors influencing the presence of Eokochia saxicola and Primula palinuri, two endemic species of sensitive cliff microhabitats in southern Italy. The analysis of physicochemical anthropogenic pressures has been demonstrated to reveal distinct patterns in soil characteristics, which in turn correlate with species occurrence. It is vital for effective species conservation strategies that appropriate microsites for translocation and long-term preservation are identified. This research makes an integral contribution to the realm of ecological restoration, integrating principles of restoration ecology, and thereby provides practical guidelines for future conservation strategies aimed at the ecological rehabilitation of threatened habitats. Beyond the specific case study, this protocol represents a transferable tool for environmental management of coastal cliff ecosystems facing degradation, aligning with restoration ecology and biodiversity conservation goals.

This study focuses on a Thermoresistive Microcalorimetric Flow (TMCF) sensor for measuring volumetric flow rates of deionized water.A one-dimensional model is proposed to analyze the thermal behavior of channel-type flow sensors, aiming to assess their sensitivity and operational performance.Simulations in COMSOL Multiphysics confirm that the model accurately predicts the sensor′s behavior, validating its effectiveness.Exptl. results further validate the math. model, confirming its accuracy.Addnl., the sensitivities, hysteresis, and response times of the TMCF sensor′s temperature sensors were evaluated while operating in Constant Temperature Difference (CTD) mode.Exptl. measurements of the sensor were performed on a voltage regulation circuit operating in Constant Temperature (CT) mode to obtain an anemometric response.These exptl. results showed good agreement with simulations in COMSOL Multiphysics and later in LTSpice.It was found that these responses were three orders of magnitude smaller than those obtained in CTD mode.The fabrication methodol. of the TMCF sensor was successfully implemented using glass substrates, as proposed in the math. model, and with the geometry defined in the simulations to enhance the sensor′s response.

In this work, basic guidelines for the development of superconducting coplanar waveguide resonators (CPWR) suitable for quantum computing applications are presented along with simulation and exptl. results that highlight the impact of pattern definition.CPWR with resonance frequencies between 5 and 20 GHz were designed, simulated, modeled using an RLC equivalent circuit model and a transmission line model, and fabricated using Al/Si and Al/SiO₂/Si structures.Finite element simulations were done using resistivity values for Al corresponding to temperatures in the range between ambient temperature and the superconducting regime.From the simulations, the impact of conductor losses in the quality factors of the resonators was confirmed.To study the effect of the coupling structures, gap and finger coupling capacitors were considered.Results show that undercoupled and overcoupled conditions can be achieved from those coupling structures.Finally, simulations, models and ambient-temperature measurements were correlated.From this comparison, it was found that differences between exptl. and theor. data can be attributed to an imperfect photolithog. definition of the critical dimensions for Al-based CPWR, pointing out the relevance and impact of fabrication processes for integrated circuits operating in the microwave regime.