The bacteriophage T7 procapsid structure and the DNA packaging apparatus at the portal vertex was reconstructed using single particle cryo-EM and the new Focused Asymmetric Reconstruction (FAR) image ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

We’ve created a new way to explore the fundamental constituents of the universe. [Editor’s note: The full, interactive map is available below.] All of nature springs from a handful of components — the ...

This attempt to discredit a fundamental piece of protective gear used and studied around the globe fails to account for several fundamental scientific principles. The COVID-19 particle is small, but ...

This is a preview. Log in through your library . Abstract ABSTRACT Through microscopic visualization experiments, a process generally known as depth filtration was shown to be caused by surface pores.

According to the U.S. Environmental Protection Agency (EPA), “Americans, on average, spend approximately 90% of their time indoors, where the concentrations of some pollutants are often two-to-five ...

High above the oceans and landmasses, an unseen migration is constantly unfolding. These travelers are aerosols: millions upon millions of microscopic particles so small they can drift for days or ...