In a public health advisory Friday, the territory's chief public health officer (CPHO) said the sample came back positive for ...

A three-person mixture of unknown DNA was found under a 21-year-old University of Idaho student’s fingernails after she and three other students were killed at an off-campus home in November 2022, a ...

This protocol describes a quantitative and robust 96-well-plate-reader–based assay for the measurement of ethoxyresorufin-O-deethylase (EROD) activity using the rat hepatoma cell line H4IIE. The assay ...

Mixtures of different defense substances: Spruce trees require various monoterpenes — typical components of resin — to combat bark beetles and the fungi associated with them. Specific defense: The ...

Students will be able to plan and carry out an investigation to identify which two of the three ingredients in baking powder react to produce a gas when water is added. Students will be able to ...

Four substances have been added in the U.S. Department of Health and Human Services 13th Report on Carcinogens, a science-based document that identifies chemical, biological, and physical agents that ...

Pure and Mixed Substances: In the world of chemistry, substances are broadly classified into two fundamental categories: pure and mixed substances. Understanding these distinctions is crucial as they ...