Determining the relative abundance of two different molecular species or the absolute number of molecules in a single sample is challenging. We describe an absolute counting method that can use ...

With an advance that one cryptography expert called a "masterpiece," University of Texas at Austin computer scientists have developed a new method for producing truly random numbers, a breakthrough ...

Lotteries, accidents and rolls of dice — the world around us is full of unpredictable events. Yet generating a truly random series of numbers for encryption has remained a surprisingly difficult task.