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The best way to understand how a product or material will perform in the field or over time is to use a laboratory test chamber to model those conditions. This is done in one of two ways: the test chamber may model the conditions exactly as they are,... Read More

A balance is a crucial and fundamental piece of equipment for any laboratory. The crucial requirement to fulfill when purchasing a balance is to meet the accuracy requirements of the laboratory. Read More

The relative strengths and weaknesses associated with different mass spectrometer configurations can make selecting the right instrument a challenging endeavor for a prospective buyer. Read More

X-ray diffraction—analyzing the diffraction patterns that result when a beam of X-rays scatters off of atoms in a crystal structure—is a powerful tool for studying molecular structure. Analyzing the specific angles of the diffracted X-rays, as well ... Read More

Methicillin, the first beta-lactamase-resistant penicillin, was introduced in England in 1959, and strains of methicillin-resistant Staphylococcus aureus (MRSA) were being reported as early as 1961. During the first ten years since those reports, ... Read More

Human papillomaviruses (HPVs) are small, nonenveloped, double-stranded circular DNA viruses. They cannot be cultured by conventional microbiological methods, and are classified based on similarities in nucleic acid sequences. Read More

With the exception of 1918, when influenza was the leading cause of death in the United States, cardiovascular disease (CVD) has had that honor for the last 100 years. CVD is also the leading cause of death worldwide. According to the World Health ... Read More