Communism was seen as a rival of and a threat to western capitalism for most of the 20th century. This rivalry peaked during the Cold War, as the world's two remaining superpowers, the United States and the Soviet Union, polarized most of the world into two camps of nations.
Renal Replacement Therapy (RRT) Overview. Overview of RRT. Renal replacement therapy (RRT) is required when the kidneys are functioning at less than 10â15 percent. Dialysis. People with advanced chronic renal failure (CRF), kidney failure, who have progressed to end-stage renal disease (ESRD) usually require dialysis.
Rett syndrome (RTT) is a neurodevelopmental condition characterized by the loss of spoken language and hand use, coupled with the development of distinctive hand stereotypies.his disorder is seen in infancy and occurs almost exclusively in females. It is usually caused by a mutation of the MECP2 gene on the X chromosome. Rett syndrome is found in all racial and ethnic groups throughout the world. It affects one in every ten thousand live female births.