Polish Society of Nephrology improvements in continuous professional development as well as research activities among young doctors and other professionals in the fields of nephrology, dialysis therapy and renal transplantation. PSN Congresses are organized every three years. As yet twelve Congresses were held in the following locations in Poland: 1st Congress - Bydgoszcz (1983) 2nd Congress - Kraków (1986) 3rd Congress - Gdańsk (1989) 4th Congress - Katowice (1992) 5th Congress - Lublin (1995) 6th Congress - Poznań (1998) 7th Congress - Kraków (2001) 8th Congress - Białystok (2004) 9th Congress – Katowice/Wisła (2007) 10th Congress - Bydgoszcz (2010) 11th Congress - Wrocław (2013)
Four Organs a combination of "loud cheers, loud boos, and whistles." A 1973 performance of "Four Organs" at Carnegie Hall in New York City nearly caused a riot, with "yells for the music to stop, mixed with applause to hasten the end of the piece." One of the performers, Michael Tilson Thomas, recalls: "One woman walked down the aisle and repeatedly banged her head on the front of the stage, wailing 'Stop, stop, I confess.'" References Four Organs Four Organs is a work for four electronic organs and maraca, composed by Steve Reich in January 1970. The four organs harmonically expound a