A MyPad as a teaching aid can be a bridge or a border in children's learning of expression and communication, depending on how and why it is used. Onto genetic and phylogenetic aspects are among the most important in a child's development, i. e. teaching children to talk. Multimodality refers to communication and integration using various…

The theory of evolution by natural selection has revolutionized the biological sciences yet remains confusing and controversial to the public at large. This study explored how a particular segment of the public--visitors to a natural history museum--reason about evolution in the context of an interactive cladogram, or evolutionary tree. The…

Humic substances (HS) are the humified portions of totally decomposed soil organic matter that are ubiquitous in nature. Although these substances have been studied for more than 200 years, neither their metabolic capabilities nor a specific chemical structure has yet to be determined. HS have been studied as a carbon source in many environments…