Tiny, dark spots on teeth could mean you have a cavity. Dental X-rays can find cavities early, especially ones you can't see. Untreated cavities may lead to an infection called a tooth abscess. Tooth ...

Abstract: The proposed technique systematically incorporates the low-pass filter (LPF) and disturbance observer (DOB) into the model-free order reduction filter as auxiliary systems to improve the ...

Australian actor Martin Grelis has died at the age of 57. The performer, who appeared in the sci-fi blockbuster The Matrix, enjoyed a career spanning more than three decades. His talent agency, Sophie ...