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Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Like the old saying goes, when the going gets tough, the tough get going. But even the toughest people still need encouragement every now and again. If you’ve encountered setbacks in pursuit of your ...

To celebrate HBR’s centennial, we asked eight current and former CEOs from some of the world’s top companies to describe the ideas that have propelled their own careers and organizations. Harvard ...

SEE ALSO: Black Friday 2025: Live updates on the latest deals from Amazon, Target, Walmart, and more We've gathered together just a few of our favorite Fitbit deals from Black Friday below. If you're ...