In this useful Tools & Resources article, the authors describe a new cryogenic light microscopy design and characterize its temperature and spatial stability. This compelling system avoids the ...

If you've started a business and will be selling products or services in a state that charges sales tax, one of your first tasks should be to get your sales tax ID number. This allows you to collect ...

Thyroid function tests are blood tests that measure hormone levels to check how well your thyroid is working. The most common tests are thyroid-stimulating hormone (TSH) and thyroxine (T4), which help ...

An employer identification number (EIN) is like a Social Security number (SSN) for a business. The IRS assigns an EIN — also known as a federal tax ID number — to any business that is eligible. EINs ...

Protein function predictions are bioinformatic methods (i.e. involving computation using software) that aim to predict the function of a protein. Protein function analyses use protein sequences and ...

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...