Using modern platelet aggregometers, it is possible to evaluate platelet secretion simultaneously, by measuring release of ATP by the aggregating platelets. Measurement of platelet secretion allows the laboratory diagnosis of secretion defects with greater sensitivity than platelet aggregation testing alone.
Windows XP has long been an OS Microsoft begrudgingly kept alive far longer than it could have ever imagined. Initially released in 2001, official support for Windows XP persisted all the way through April 2014. At the time, Microsoft noted that after 13 years of support, it was time for the company to look forward, unencumbered by outdated software.
Released on May 2, 2012, the Dell XPS 8500 is the first version in this series to have the third-generation Intel Quad Core i5 and i7 processor added to it. This version of the XPS's motherboard uses the Intel Chipset H77 with socket LGA 1155 and has USB 3.0 ports built into the front.