Several measurement techniques used in the life sciences gather data for many more variables per sample than the typical number of samples assayed. For instance, DNA microarrays and mass spectrometers ...

A method is presented that constrains principal components analysis (PCA) to extract a first component that, by definition, summarizes isometric size alone. The remaining information is partitioned ...

Principal Financial Group, Inc. provides retirement, asset management, and insurance products and services to businesses, individuals, and institutional clients worldwide. The company operates through ...

Principal Real Estate Income Fund is a closed ended balanced mutual fund launched and managed by ALPS Advisers, Inc. It is co-managed by Principal Real Estate Investors, LLC. The fund invests in ...

Objective To investigate potential moderating effects of resistance exercise dose components including intensity, volume and frequency, for the management of common tendinopathies. Design Systematic ...

Background Post-infection disorders of gut-brain interaction (PI-DGBI) are a subset of chronic gastrointestinal disorders triggered by acute infectious gastroenteritis. These conditions impose a ...