Using the Whole Earth Blazar Telescope (WEBT), an international team of astronomers have performed long-term photometric observations of a luminous blazar known as Ton 599. Results of the observations ...

This article reviews sources of excipient variability, including raw materials and processing, both of which may vary from supplier to supplier and from plant to plant for a single manufacturer.

Measuring your heart rate has long been established as one of the easiest ways to monitor your effort while exercising but, in recent years, heart rate variability has emerged as a new metric that can ...

A new study combining records of climate change during the last 3.5 million years with fossil evidence of mammals in Africa reveals that times of erratic climate change are not followed by major ...

Variability is crucially important for learning new skills. Consider learning how to serve in tennis. Should you always practice serving from the exact same location on the court, aiming at exactly ...

Every measurement counts at the nanoscopic scale of modern semiconductor processes, but with each new process node the number of measurements and the need for accuracy escalate dramatically. Petabytes ...