The Annals of Statistics, Vol. 43, No. 3 (June 2015), pp. 1300-1322 (23 pages) Estimating the leading principal components of data, assuming they are sparse, is a central task in modern ...

In recent weeks, Portrait Corp. of America has announced the loss of its chief executive, its chief financial officer -- and $13 million. The company says its current liabilities, at $72.8 million, ...

Am J Health Syst Pharm. 2007;64(14):1492-1499. Although operator errors were less frequent than device malfunctions, these events were associated with the most severe consequences, including six ...

Having posterior cortical atrophy (PCA) is challenging, that’s for sure. You might have awful brain fog for hours, days, weeks, where you can’t think clearly. You become exhausted from the visual and ...

The Federal Board of Revenue (FBR) is facing serious problems in the implementation of one of their major reform projects, the Post Clearance Audit (PCA) of importers in Karachi and Lahore. Sources ...

"The hurricanes this year helped to ratchet up inflation and that is going to stick around," says Ed Sullivan, PCA s chief economist. "Economic conditions are just not as favorable as they were before ...