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, ...

Atrial flutter causes a fast heart rate and can lead to dizziness and fatigue. Atrial flutter increases the risk of stroke, even though it usually isn't life-threatening. Common risk factors for ...

Atrial flutter and atrial fibrillation (AFib) both occur when the electrical signals that make your heart chambers contract occur faster than normal. However, they differ in how this electrical ...

In this guide on how to do flutter kicks, you’ll learn about the awesome benefits of this simple, yet very effective exercise. The flutter or butterfly kick, as some call it, involves lying on your ...

Windows 11 is available for download worldwide. Microsoft has released it as a free upgrade, which means you do not need to pay to upgrade your computer to Windows 11. It is available for free ...

The 1.0 version of the Hypertext Transfer Protocol, issued way back in 1996, only defined three HTTP verbs: GET, POST and HEAD. The most commonly used HTTP method is GET. The purpose of the GET method ...

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations for ...

If you’re completely new to Microsoft Word, you’re probably wondering where to begin. You’ve come to the right place because we’ll get you started. From what you see in the Word window to how to save ...