Polish Society of Nephrology to represent nephrologists’ community i.e. to develop and promote up-to-date clinical practice in the fields of nephrology, dialysis therapy and kidney transplantation as well as to take part in health care organization in the area of Society’s competence. PSN promotes kidney health by organizing educational meetings and cooperating with patient organizations. The aim of PSN is also to promote continuous professional development, research activities and international cooperation among its members. Young Nephrologists’ Club (YNC) of the PSN was established in 2014. The aim of the YNC is to cooperate with the Young Nephrologists’ Platform of the ERA-EDTA and to promote
The six organs in the Palace of Mafra as the reassembling of the organ of São Pedro d’Alcântara, were left unfinished. Until 1998, the organs only received minor repairs. That year, the global restoration of the ensemble, entrusted to the Portuguese organ builder Dinarte Machado, began and was concluded in 2010. This project included the reconstruction of the organ of São Pedro d’Alcântara, incorporating all the materials recovered since it was disassembled around 1820. The six organs (two in the main chapel, two in the northern transept, and two in the southern transept), although different, have several common features. Some, like the horizontal reeds and the divided keyboard,