Magnetron Sputtering Formation of Germanium Nanoparticles for Electrochemical Lithium Intercalation.

In the drive towards increased lithium based battery capacity, germanium is an attractive material due to its very high lithium storage capacity, second only to silicon. The persistent down-side is the considerable embrittlement accompanying its remarkable volume expansion of close to 300 %. A proven method to accommodate for this lattice expansion is the reduction of the size towards the nanoscale at which the fracturing is prevented by "breathing".

Commodity-specific triads in the Dutch inter-industry production network.

Triadic motifs are the smallest building blocks of higher-order interactions in complex networks and can be detected as over-occurrences with respect to null models with only pair-wise interactions. Recently, the motif structure of production networks has attracted attention in light of its possible role in the propagation of economic shocks. However, its characterization at the level of individual commodities is still poorly understood.

Deterministic, quenched, and annealed parameter estimation for heterogeneous network models.

At least two different approaches to define and solve statistical models for the analysis of economic systems exist: the typical, econometric one, interpreting the gravity model specification as the expected link weight of an arbitrary probability distribution, and the one rooted in statistical physics, constructing maximum-entropy distributions constrained to satisfy certain network properties. In a couple of recent companion papers, they have been successfully integrated within the framework induced by the constrained minimization of the Kullback-Leibler divergence: specifically, two broad classes of models have been devised, i.e.

The Impact of Vaccination on COVID-19 Burden of Disease in the Adult and Elderly Population: A Systematic Review of Italian Evidence.

COVID-19 is a major global health threat, with millions of confirmed cases and deaths worldwide. Containment and mitigation strategies, including vaccination, have been implemented to reduce transmission and protect the population. We conducted two systematic reviews to collect nonrandomized studies investigating the effects of vaccination on COVID-19-related complications and deaths in the Italian population.