Third, since the majority of the false positive identifications in our dataset were within the group of proteins with one identified peptide, much stricter criteria (Xcorr 2.2, 3.2, or 3.75 for precursor charge states of 1+, 2+, or 3+, respectively) were applied to the peptide hits in this group to increase identification certainty.
As an indication of identification certainty, the false discovery rate for peptide matches above identity threshold was 9.39% for P1 and 3.34% for P5.
On the other hand, if more than one potential match exists, and if the adversary is lacking any additional information, then re-identification with certainty cannot occur.
In Minnesota, a lawyer for the Kerry campaign is protesting a ruling by the secretary of state -- Mary Kiffmeyer, a Republican -- that every registrant must provide identification that matches "with certainty" a state database containing registered voters' names, birthdates and driver's license numbers or partial Social Security numbers.
The Guardian points out that the cold temperatures and lack of marine life at such depths would contribute to the bodies' preservation, though there is no certainty that identification will be possible.The potential raising of the plane, and with it the bodies, does raise some tricky questions.
By combining advanced search functionality, MS-Ready structures, and rich data streams to increase certainty of identification in NTA, the Dashboard provides a valuable resource for the mass spectrometry NTA community.
The decline of leprosy cases in European countries means that no modern material can be sourced for this SNP identification technique with any certainty that the strain is of European origin.
It is not entirely clear to us why the reviewer is concerned: certainty of identification, quantitation, or both?
For top down proteomics, this >6-fold preference (3.7/0.6) of fragmentation type translates to a >10 orders-of-magnitude better certainty for identification of the proteins identified with both methods.
In addition, time of flight (TOF -based mass specTOF -basedcan now provide an accurate isotope pattern, enabling an even higher degree of certainty for identification of elemassal compospectrometers12, 13].
"We need to have 100percentt certainty in the identification of the victim before we can identify someone," said Michael Jonniaux, a spokesman for the Belgian federal police, who are overseeing the gruesome task.
