Fibroglandular density, or dense breasts, is a new warning sign for breast cancer, with half of women over 40 having them and ...

Medical test results can be hard to understand. If an ultrasound finds a hypoechoic mass, you may have wondered what that means.‌ A hypoechoic mass looks dark gray on an ultrasound. That means the ...

The amount of space debris has increased steadily since the launch of Sputnik in 1957, and about 22,000 man-made objects that are 10 cm or larger in diameter are currently cataloged and tracked in low ...

In a transparent medium, each photon is accompanied by an atomic mass density wave, scientists can demonstrate. The optical force of the photon sets the medium atoms in motion and makes them carry 92% ...

Vol. 378, No. 2172, Theme issue: Advanced materials modelling via fractional calculus: challenges and perspectives (29 May 2020), pp. 1-16 (16 pages) This paper reports the application of cellular ...