Methylation-specific quantitative polymerase chain reaction was performed on all samples. Pathology reports from esophagectomy specimens were used to define response to treatment. Thirteen (37%) of 35 patients were responders, and 22 (63%) of 35 patients were nonresponders. The number of methylated genes per patient was significantly lower in responders than in nonresponders (1.4 vs 2.4 genes per patient; Student t test, P = .026).
Marconi was not the first to invent the radio, however. Four years before Marconi started experimenting with wireless telegraph, Nikola Tesla, a Serb who moved to the USA in 1884, invented the theoretical model for radio.wenty years after the telephone was invented and music was first sent down a telephone line, Guglielmo Marconi sent radio signals. Marconi (1874-1937) was born in Italy and studied at the University of Bologna.
In 1855 provided the first demonstration of wireless communication,  and then in 1895 Guglielmo Marconi sent the first radio signal.  Radio developed from wireless telegraph â¦ y towards the end of the  19th century.Spark transmitters made a crackling noise in the  receiver, speech and music was not possible.n 1855 provided the first demonstration of wireless communication,  and then in 1895 Guglielmo Marconi sent the first radio signal.  Radio developed from wireless telegraph â¦ y towards the end of the  19th century.