Learn the distinctions between simple and stratified random sampling. Understand how researchers use these methods to accurately represent data populations.

Scientists have developed a fast, simple sample preparation method that enhances imaging of DNA to better analyze its physical properties and interactions. JILA scientists have developed a fast, ...

Prior to any analysis by LC-MSMS, a sample clean-up step is recommended in order to remove matrix components such as proteins, lipids, carbohydrates and salts. The current methods for sample ...

The conventional approach of choosing sample size to provide 80% or greater power ignores the cost implications of different sample size choices. Costs, however, are often impossible for investigators ...

(Nanowerk News) JILA scientists have developed a fast, simple sample preparation method that enhances imaging of DNA to better analyze its physical properties and interactions. Described in ACS Nano ( ...