In general, liquid-liquid extraction is applied where alternative separation technologies such as distillation are uneconomical, or even unsuitable. Typical examples: Simultaneous separation of ...

A website may be your business's only chance to make a positive first impression. Here's how to make it count. Your website’s design is crucial to your online presence and digital marketing strategy.

Sarah D. Sparks is a reporter and data journalist for Education Week who covers the teaching profession and pedagogy for Education Week. She has covered education research and the science of learning ...