Multiple methods have been developed for the study of telomeres. These techniques include quantification of telomere length by terminal restriction fragmentationâwhich was one of the earliest tools used for length assessmentâmaking it the gold standard in telomere biology.
If we didnât mention it before, the new American Airlines flight from Dallas/Fort Worth International Airport to Hong Kong, at 8,119 miles, is now the longest flight in Americanâs network. The other flight launched Wednesday, DFW-Shanghai, China, is the second longest AA flight at 7,346 miles.
American Airlines define medium/short-haul flights as less than 3,000 mi (2,600 nmi; 4,800 km) and long haul as more than that and New York to Los Angeles or San Francisco: 2,475â2,586 mi (2,151â2,247 nmi; 3,983â4,162 km); the same distinction for United Airlines between long and short haul.