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New and Improved R

Work published last week in BMC Bioinformatics unveiled a way to parallelize R statistical analysis by using an add-on package, called R/parallel. The package "extends R by adding user-friendly parallel computing capabilities" and "processing time can be approximately reduced N-fold, N being the number of available processor cores," researchers write in the abstract. Thomas Mailund discusses the difficulties of developing concurrent programs and the fact that the new software leaves it up to the user to determine which loops to speed up. "Knowing what to run in parallel and what not to is a hard problem. It will often depend on the data as well, if nothing else the data size," he says at Mailund on the Internet.

The Scan

Gone, But Now Reconstructed SARS-CoV-2 Genomes

In a preprint, a researcher describes his recovery of viral sequences that had been removed from a common database.

Rare Heart Inflammation Warning

The Food and Drug Administration is adding a warning about links between a rare inflammatory heart condition and two SARS-CoV-2 vaccines, Reuters reports.

Sandwich Sampling

The New York Times sent tuna sandwiches for PCR analysis.

Nature Papers Describe Gut Viruses, New Format for Storing Quantitative Genomic Data, More

In Nature this week: catalog of DNA viruses of the human gut microbiome, new dense depth data dump format to store quantitative genomic data, and more.