Chris Trahan
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Articles
Recent activity by Chris Trahan-
How can I setup ChimerMarker so that all of our users have the same settings (user management, panels, size standards, templates, etc)?
It is possible to synchronize the basic ChimerMarker preferences and settings across multiple users and/or computers by moving certain files to network locations and other files to the individual w...
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How do I display comments in ChimerMarker?
There are a few different ways users can leave comments in ChimerMarker including Sample Comments, Chimerism Analysis Report Comments, and Longitudinal Report Comments. Instructions for how to disp...
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How do I export donor/recipient profiles as text files from ChimerMarker?
There are some cases where .txt file format is needed to export and import donor and recipient genotypes into ChimerMarker instead of using the original pre-sample .fsa files. Sometimes when the d...
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I'm getting an EAccessViolation error while using GeneMarker
EAccessViolation errors are typically due to memory or permission related issues.If the error is due to memoryDepending on your computer specifications (such as available RAM), running GeneMarker w...
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Can I modify my panel to use a different Peak Detection Threshold in ChimerMarker?
A default panel can be changed so that the genotyping portion of the analysis uses a different Peak Detection Threshold than the default RFU's, by making the changes to the panel within the Panel E...
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Removing Personal Health Information (PHI) from data files
All data files must have personal identifiers removed prior to sending to tech support. Any files that contain personal identifiers will be deleted upon recieving.To remove PHI, first rename the ra...
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I ended my CE run early and the full size standard was not captured before ending the run. How do improve my size scores and calling?
-Sometimes ending the CE run early makes sense when my data collection is complete as long as there are size standard peaks on each side of data. However, this results in yellow icons (A) next to s...
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How to differentiate between loss of resolution from amplification issues and capillary quality in samples that do not contain internal control probes?
The intention of this video is to answer some frequently asked questions.. This segment of the video discusses loss of resolution, including the significance of Full Width Half Maximum (FWHM).How ...
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Why are there red underscores in the electropherograms?
The red underscores sometimes seen in electropherograms are regions where the capillary electrophoresis instrument has identified a peak signal that exceeds the linear range of the instrument (a sa...
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How do I manually perform size calibration?
The intention of this video is to answer some frequently asked questions. This segment of the video discusses how to manually perform size calibration.Why are there yellow (or red) size quality sh...