Abstract: The rooted max tree coverage (MTC) problem has wide applications in areas, such as network design and vehicle routing. Given a graph with non-negative costs defined on edges, a vertex used ...

German immigrant and Harvard professor Charles Follen is credited with introducing the German tradition of the Christmas tree to Massachusetts in 1832. Born Karl Theodor Christian Friedrich Follen in ...

It was one Christmas visitor that didn’t overstay its welcome. A Burmese python that had been spotted in a Miami-Dade neighborhood was removed just days before Christmas after a resident out for a ...

Drones have been used to successfully collect samples from the exhaled breath - or “blow” - from wild humpback, sperm and fin whales in northern Norway, hailing a new era of non-invasive health ...

For the first time in several years, every single Angel on the Salvation Army Angel Tree has been adopted — ensuring more than 35,000 children, older adults, and adults with disabilities will have ...