The Fourth of July mostly brings thoughts of cookouts, baseball and fireworks. But of course it’s also a day to think about America and its founding — never more so than this year, when the holiday ...

You have reached your maximum number of saved items. Remove items from your saved list to add more. Ten clues. Twenty-five squares. How quickly can you solve this bite-sized puzzle? Track your win ...

Every week, “The Headlines” brings you a quiz to test your news knowledge on stories big and small. Listen to see whether you’ve kept up. If you want to take The Morning’s weekly online news quiz, go ...

College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi China ...

Abstract: Fifth generation (5G) mobile communication systems have entered the stage of commercial deployment, providing users with new services, improved user experiences as well as a host of novel ...