Cornell researchers have developed a powerful new biosensor that reveals, in unprecedented detail, how and where ...

The asterisk (*) is the wildcard character that represents any sequence of characters, including when there are no characters at all. It’s the most flexible of the bunch, since it can replace any ...

As the immune system ages, it reacts more slowly to pathogens, vaccines become less effective, and the risk of cancer ...

Learn how DROP, REDUCE, LAMBDA, and STACK make Excel arrays update automatically, split text, and stack filtered results ...

Discover 5 advanced Excel drop-down techniques to create dynamic, auto-updating lists and improve your data management skills.

Pull requests help you collaborate on code with other people. As pull requests are created, they’ll appear here in a searchable and filterable list. To get started, you should create a pull request.

More schools are adopting policies banning cell phones, from all-out bans that forbid students from taking their phones out at any time of day to more flexible policies that allow older students to ...