Collective behavior is an unusual phenomenon in condensed-matter physics. When quantum spins interact together as a system, ...

What is the Quantum Size Effect? The quantum size effect (QSE) is a phenomenon observed in nanomaterials where their electronic, optical, and magnetic properties deviate from those of the bulk ...

Quantum materials can behave in surprising ways when many tiny spins act together, producing effects that don’t exist in ...

Standard effect sizes are more meaningful outcomes in Alzheimer's disease drug trials than the widely used metric of percent slowing of decline, an analysis suggested. In recent trials of Alzheimer's ...

Across contemporary cardiovascular clinical trials, the estimates of expected event rates and effect sizes that investigators use to calculate sample sizes—and funding requirements—often come in ...