Near-infrared spectroscopy combined with principal components analysis and a back propagation neural network identified ...

A Santa Barbara school principal has admitted to overriding student election results to award two positions to runners-up, including her own child. The elementary school principal has returned to ...

Elementary-algebra derivations clarify how constrained variance maximization operates and why matrix formulations, while compact, can conceal intermediate steps in the optimization process. PCA ...

A class action filed September 22 in Chicago federal court alleges that Principal Financial Group turned its own employees' retirement plan into a revenue stream for the company. The lawsuit, filed in ...

SPSS does not have a separate menu for principal component analysis (PCA). It lives inside the same dialog as exploratory factor analysis (EFA) — Analyze → Dimension Reduction → Factor — with ...

After 31 years in education, one choice cost an Ohio principal his job – it's a decision he says he does not regret. As principal of Lakota East High School in a suburb of Cincinnati, Ohio, Rob ...

Principal Mineral is buying a Cerberus Capital Management LP-backed firm that produces components for printed circuit boards, a key electronic part used in products from cars to planes to AI servers.

A Covington principal and assistant principal were arrested Wednesday and are facing charges after they were accused of failing to comply with the state's mandatory reporting law. The St. Tammany ...

Fort Worth ISD said it will reassign a new principal after her hire sparked a sharp backlash from conservatives and far-right groups. The district this week announced Shayma Alzubi as the new ...

The heroic Oklahoma high school principal shot tackling a Columbine-obsessed school shooter was crowned prom king and hailed by students for saving their lives, heartwarming video shows. Pauls Valley ...

A new class action lawsuit accuses Principal Financial Group affiliates of enriching themselves by packing retirement plan assets into their own high-fee, underperforming funds. The suit, filed April ...

Newly released video shows the moment an Oklahoma high school principal confronted and tackled a gunman after he opened fire inside the school. The footage shows Pauls Valley High School Principal ...