Stem cell model offers first glimpse of early human development

It's one of life's most defining moments—that crucial step in embryonic development, when an indistinct ball of cells rearranges itself into the orderly three-layered structure that sets the stage for all to come. Known ...

Study shows how to improve management of municipal solid waste

Some 20,000 metric tons of municipal solid waste (MSW) are produced every day in metropolitan São Paulo (Brazil), with household trash accounting for 12,000 tons and street cleaning (mainly sweeping, open-air market refuse ...

Researchers create toolkit to support school safety

University of Virginia professors Dewey Cornell and Jennifer Maeng have created a toolkit that school districts may use to help keep schools safe from threats, including gun violence.