In December 2019, the first clusters of patients with pneumonia of unknown cause were observed in the Huanan seafood market in Wuhan, Hubei Province, China 1. This unknown disease was identified as a ...

Mass spectrometry is a powerful technique that allows scientists to break down and identify the building blocks of just about anything by measuring the mass of the tiny particles of which something is ...

Gastric cancer (GC) is the fifth most common cancer worldwide 1. Gastric carcinogenesis is a multistep and multifactorial process beginning with active chronic gastritis induced by Helicobacter pylori ...

Sample preparation is essential when employing chromatography for bioanalytical analysis as system performance will be negatively affected if it is not performed. Preparation methods include protein ...

A semen analysis can help your doctor diagnose fertility issues. A sample is looked at under a microscope to see how many sperm cells it contains, how they're shaped, and how well they move. (Photo ...

Power analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required sample size for ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

In any chemical analysis, the most important step is sample preparation. The purity of the sample should be ensured before taking a measurement to obtain the optimum results when using any elemental ...