One idle evening last October, Mehtaab Sawhney took up an old pastime. He began perusing the website erdosproblems.com, an updated record of the 1,179 conjectures left behind by the eccentric and ...

Liver disease includes many conditions that damage the liver and reduce its ability to support digestion, energy storage, and waste filtration. Symptoms can be mild or absent, but severe signs include ...

Problem solving is the mental process of analyzing a situation, learning what options are available, and then choosing the alternative that will result in the desired outcome or some other selected ...

February 13 - Israel has taken steps to help settlers acquire land in the occupied West Bank and widen its powers in parts of the territory where Palestinians have some self-rule - measures they said ...