Identification and treatment of false methane values produced by the tunable diode laser absorption spectroscopy technology equipped on unmanned aerial vehicles.

Fugitive or diffuse methane emissions constitute an important source of damage to the environment, much greater even than CO2 both over a time span of 20 years and over a longer time span of 100. It is therefore of preeminent importance to undertake all the efforts necessary to implement new tools, protocols, and methods that contribute to the identification and measurement of these emissions to implement site-specific actions of mitigation, repair, and conscious management of the emitting plants. Among the remote sensing and leak detection technologies currently used, the tunable diode laser absorption spectroscopy (TDLAS) method plays a relevant role.

The growing, resilient, inclusive and sustainable (GRINS) project for the development of life cycle inventory databases of beef cattle raised in Italy: The statistical datasets and the environmental assessment.

Within the framework of the Growing, Resilient, Inclusive and Sustainable (GRINS) project (Spoke 1, WP3, Next Generation EU program), this work aims to overcome the absence of Italian beef cattle Life Cycle Inventory (LCI) datasets through a capillary analysis of several parameters. Specifically, the contribution to the environmental impact of livestock breeding of breed features (age, gender, weight, daily weight gain, breeding, feed intake and composition, milk and manure production), as well as stable management and crop cultivation was investigated. Statistical inventory datasets (84 in total) were developed for the predominant (<1 % population cut-off) beef cattle breeds in Italy.

Progress in monitoring methane emissions from landfills using drones: an overview of the last ten years.

Solid waste landfills are responsible for much of the anthropogenic methane emitted from the waste sector. The quantification of fugitive CH emissions from a landfill is to date characterised by high uncertainty and several methodologies have been devised to estimate emission fluxes. Unmanned Aerial Vehicles (UAVs, also known as drones) are revolutionising the way CH emission monitoring is conceived and offer new opportunities for quantifying emission fluxes from a landfill, mainly due to recent advances in sensor miniaturisation that make these instruments lighter and more suitable to be equipped on a drone.

Effect of artificial or autologous coverage of the pancreatic remnant or anastomosis on postoperative pancreatic fistulas after partial pancreatectomy: meta-analysis of randomized clinical trials.

Background: Postoperative pancreatic fistulas remain a driver of major complications after partial pancreatectomy. It is unclear whether coverage of the anastomosis or pancreatic remnant can reduce the incidence of postoperative pancreatic fistulas. The aim of this study was to evaluate the effect of autologous or artificial coverage of the pancreatic remnant or anastomosis on outcomes after partial pancreatectomy.

Glucocorticoids are differentially synthesized along the murine and human respiratory tree.

Background: Synthetic glucocorticoids (GC) are effective in the treatment of inflammatory diseases of the lung. However, long-term use leads to severe side effects. Endogenous GC can be synthesized locally, either de novo from cholesterol in a 11β-hydroxylase (Cyp11b1)-dependent manner, or by reactivation from 11-dehydrocorticosterone/cortisone by 11β-hydroxysteroid dehydrogenase 1 (Hsd11b1).