Honda's Marc Marquez led a Spanish -podium sweep at the Czech GP on -Sunday to extend his MotoGP world championship lead with a second straight win.
Dani Pedrosa was second almost 13 seconds back ahead of Maverick Vinales in third and nine-time world champion Valentino Rossi in fourth.
"I could have gone faster but there was no need to do so Ronnie Stanley Womens Jersey , I had it won and I'm not taking those risks anymore," said the three-time world champion who however celebrated by standing on his bike as he rode past the main stand to an ovation.
"These kind of races [mixed weather] can be very challenging and you have to remain focussed," Marquez said after negotiating his tire change early.
The result leaves the overall standings on a relative razor's edge as Marquez leads with 154 points ahead of -Vinales on 140. Andrea Dovizioso is third on 133, Rossi fourth on 132 and Pedrosa has 123 in fifth.
In his third win of the season the defending champion Marquez was in truly imperious form, starting from pole and dominating, holding his nerve during the tire change as he temporarily dropped down the field before gradually lap after lap extending his lead.
After also winning in a similar fashion at the German GP last time out, Marquez has galvanized the defense of his title that was in danger of being a landslide for the Yamaha tyro Vinales who took a big early lead but is now second after 10 of 18 races.
Having three Spaniards on the podium was a fine tribute to 13-time world champion Angel Nieto, who popularized motorbike racing in Spain and was killed aged 70 in a quad bike accident last week.
Ahead of the day's proceedings riders and teams from all categories gathered behind a banner saying "Gracias Maestro" (Thanks Master) and respected a minute's silence.
Nieto was on a quad bike on Wednesday when he "had an accident with a tourism vehicle," police said at the time.
He was rushed to hospital in a serious state where he remained in intensive care, but his condition deteriorated before passing away.
Nieto sits second in the all-time list of most motorcycling world championship titles, two behind Italian great Giacomo Agostini.
Only Agostini and current Italian great Rossi have bettered his tally of 90 Grand Prix victories.
Nieto retired aged 39 two years after his final world championship in 1986.
Earlier Swiss Kalex rider Thomas Luthi emerged victorious from the rain-interrupted Moto2 GP as championship leader Franco Morbidelli finished eighth. And Spain's Juan Mir led a -Honda sweep in the Moto3 race to register his sixth win of the season from 10.
SAN FRANCISCO, Aug. 13 (Xinhua) -- A new study from University of Washington (UW) researchers finds evidence of poor computer security practices used in DNA sequencing tools.
By analyzing the security hygiene of common, open-source DNA processing programs, researchers at the University of Washington (UW) confirmed that known security gaps could allow unauthorized parties to gain control of computer systems, potentially giving them access to personal information or even the ability to manipulate DNA results.
DNA is a system that encodes information in sequences of nucleotides. Rapid improvement in DNA sequencing has sparked a proliferation of medical and genetic tests that promise to reveal everything from one's ancestry to fitness levels to microorganisms that live in one's gut. However, some open-source software programs used to analyze DNA sequencing data were written in unsafe languages known to be vulnerable to attacks, in part because they were first crafted by small research groups who likely weren't expecting much adversarial pressure.
But as the cost of DNA sequencing has plummeted over the last decade, open-source programs have been adopted more widely in medical- and consumer-focused applications.
The findings by researchers at the UW Security and Privacy Research Lab and UW Molecular Information Systems Lab will be presented August 17 in Vancouver, B.C., Canada, at the 26th USENIX Security Symposium.
In the study, according to a UW news release this week, the researchers also demonstrated for the first time that it is possible to compromise a computer system with a malicious computer code stored in synthetic DNA. Through trial and error, the team found a way to include executable code, similar to computer worms that occasionally wreak havoc on the internet, in synthetic DNA strands. When that DNA is analyzed, the code can become executable malware that attacks the computer system running the software, gaining control of the computer and potentially allowing the adversary to look at personal information, alter test results or even peer into a company's intellectual property.
Recommendations from the researchers to address vulnerabilities in the DNA sequencing pipeline include: following best practices for secure software, incorporating adversarial thinking when setting up processes, monitoring who has control of the physical DNA samples, verifying sources of DNA samples before they are processed and developing ways to detect malicious executable code in DNA.
Meanwhile, researchers at the UW Molecular Information Systems Lab, or MISL, are working to create next-generation archival storage systems by encoding digital data in strands of synthetic DNA. Although their system relies on DNA sequencing, it does not suffer from the security vulnerabilities identified in the new research, in part because the MISL team has anticipated those issues and because their system doesn't rely on typical bioinformatics tools.
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