Author: Dr. David Lowemann

Parameterizing Individual Differences in Fraction and Decimal Arithmetic

Abstract Math problem solving frequently involves choices among alternative strategies. Strategy choices, and effects of problem features on strategy choices, both vary among individuals. We propose that individual differences in strategy choices can be well characterized in terms of parametric variation in three types of influence: global bias, relevant feature effects, and irrelevant feature effects. […]

Published on May 21, 2025

Personal space chemistry suppressed by perfume and body lotion indoors

In 2022 a team discovered that high levels of OH radicals can be generated indoors, simply due to the presence of people and ozone. This means: People generate their own oxidation field and change the indoor air chemistry around them within their own personal space. Now, in a follow-up study again in cooperation with an […]

Published on May 21, 2025

Florida-Grown Cucumbers Behind Salmonella Outbreak

Health officials are investigating a salmonella outbreak tied to cucumbers grown in Florida. At least 26 people across 15 states have gotten sick, and nine people have been hospitalized, the U.S. Food and Drug Administration (FDA) said May 19, The Associated Press… Read Full Article (External Site) Dr. David LowemannDr. David Lowemann, M.Sc, Ph.D., is […]

Published on May 21, 2025