Ricerc@Sapienza

Polyhydroxyalkanoates (PHAs) production at pilot scale has been recently investigated
and carried out exploiting different process configurations and organic wastes. More in
detail, three pilot platforms, in Treviso (North-East of Italy), Carbonera (North-East of Italy)
and Lisbon, produced PHAs by open mixed microbial cultures (MMCs) and different
organic waste streams: organic fraction of municipal solid waste and sewage sludge
(OFMSW-WAS), cellulosic primary sludge (CPS), and fruit waste (FW), respectively.

We read with great interest the study by Clementi et al.
that would like to explore the efcacy of a single intraarticular
injection of ultra-high molecular weight hyaluronic
acid in patients with hip osteoarthritis. Actually, we
believe that investigating just patients’ clinical status using
VAS and WOMAC scale should have been supported by
further information. In fact, in order to have more data that
could infuence the recent clinical practice, it is important to
consider also  the efect that the intra-articular injection of

Poly (triaryl amine) (PTAA) is one of the promising hole transport materials (HTM) for perovskite solar cells. Highly efficient PTAA-devices have been demonstrated in both direct (n-i-p) and inverted (p-i-n) architectures. In the inverted structures, the device suffers
from poor coverage of the perovskite film over the hydrophobic PTAA surface. To address this issue, we exploited an easy and efficient
approach utilizing a short-time UV treatment of the PTAA layer prior to the perovskite deposition. The UV-treatment improved the optical

We studied the size distribution of ions (Cl−, NO3−, SO4=, Na+, NH4+, K+, Mg++, Ca++) and elements (As, Ba, Cd, Co, Cs, Cu, Fe, Li, Mn, Ni, Pb, Rb, Sb, Se, Sn, Sr, Ti, Tl, V, Zn) during the winter and summer seasons of seven consecutive years (2008–2014) in an area of the Po Valley (Northern Italy) characterised by industrial, agricultural and urban settings. The study included the collection and analysis of 41 series of size-segregated samples (MOUDI sampler, 10 stages, cut sizes from 0.18 to 18 μm).