The collection of variance-covariance matrices for any linear model may be represented, without altering relationships among linear unbiased estimators, as a compact convex subset of nonnegative ...

Based on the integer linear programming formulation proposed for optimal PMU placement, this paper presents a generalized integer linear programming formulation for cases including redundant PMU ...

Hair growth starts when new cells form within your follicles, the pores in your skin from which hair grows. These new cells clump together and start to become hard, forming a strand of hair.

Cold sores are painful blisters caused by an infection with the herpes simplex virus (HSV). Learn more about the causes, risk factors, symptoms, treatment, complications, and prevention of cold sores.

CNN unveiled a slate of new programming for CNN Headlines, its domestic FAST channel. The new shows include CNN Headline Express, hosted by Brad Smith, that will include the latest national and ...

A Reddit post criticizing Costco’s popular credit card has sparked a heated debate among members, with many agreeing the perks aren’t what they used to be.

CBD oil may have various benefits, such as reducing pain and inflammation. Unlike cannabis, it does not have psychoactive properties. Learn more here.

Assassination, abduction or substance abuse - all part of a jinx following a number of winners of the lottery.