© 2025 SCIENTIFIC AMERICAN, A DIVISION OF SPRINGER NATURE AMERICA, INC. ALL RIGHTS RESERVED.

Abstract: In food and grocery retail, sales cannibalisation during promotions occurs when a promoted product has a knock-on effect on the sales of a non-promoted one. The quantification of its effect ...

Soil and Crop Sciences, School of Integrative Plant Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York 14853, United States Center for Applied Geosciences, ...

Abstract: This paper studies cascading failure propagation in power systems and presents methods for the quantification of important properties of failure propagation. First, the topological ...

Department of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, California 92697, United States ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

A Fauquier woman is looking to share and preserve her long-standing method of teaching math, reading, and logic to reluctant learners. Developed in the ’80s and ’90s, Elsje de Boer’s approach uses ...

High schoolers’ reading and math scores dropped to the lowest level in decades, along with declines in science scores from eighth graders, according to the National Assessment of Education Progress ...

New test scores from the National Assessment of Educational Progress (NAEP), also known as the Nation's Report Card, show eighth-graders' science scores have fallen 4 points since 2019 and ...

A decade-long slide in high schoolers’ reading and math performance persisted during the COVID-19 pandemic, with 12th graders’ scores dropping to their lowest level in more than 20 years, according to ...

Baltimore — Imagine you’re a character in a math problem. You have three platters, but two cakes. All three platters need to have the same amount of cake. How would you split it? Without even saying ...