All Matrix cushions incorporate a Intelli-GelÂ® core, a dry polymer gel core that provides a unique combination of skin protection, support, and comfort. The Intelli-GelÂ® core is an ideal support surface for wheelchair cushions that provides a superior combination of performance, simplicity, and durability.ll Matrix cushions incorporate a Intelli-GelÂ® core, a dry polymer gel core that provides a unique combination of skin protection, support, and comfort. Often these wheelchair seating issues are associated with conditions such as: 1  Parkinsonâs disease. 2  Alzheimerâs disease. 3  Stroke (or other CVA). 4  Multiple Sclerosis.
Kenneth and Mamie Clark decided to try to improve social services for troubled youth in Harlem, as there were virtually no mental-health services in the community. Kenneth Clark was then an assistant professor at the City College of New York and Mamie Clark was a psychological consultant doing psychological testing at the Riverdale Children's Association.
Monday 4 April 2016 18.51 EDT First published on Monday 4 April 2016 18.06 EDT. Helen Clark, the former prime minister of New Zealand, has entered the race to succeed Ban Ki-moon as secretary general of the United Nations in a bid to become the first woman in the role of worldâs top diplomat. Clark, who was New Zealandâs prime minister from 1999 to 2008, threw her hat formally into the ring on Monday.