Professor Raúl Rojas has published a book about how symbols have been used throughout history in mathematics. The work was translated into English this year.

ABC News papal contributor Father James Martin SJ said if the app doesn’t lead to real connection with God and with other people, “then it’s pretty hollow.” A three-person crew stranded at China's ...

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...

This webpage is supported through an unrestricted educational grant from Bayer. Bayer is not involved in content development and the views expressed represent those of the patient and physician ...