brain-derived neurotrophic factor

What is a newspaper? Though a few decades ago the answer might have been obvious, it’s no longer so easy to say. Newspapers have long been about more than just news; they appear less and less on paper and, despite their geographically inflected names, aren’t firmly rooted in any particular place. The New York Times is probably the first thing that comes to mind when you think of an old-fashioned extra-extra-hear-all-about-it newspaper, but it’s also the poster child for the medium’s metamorphosis.