Which Arduino board is best for beginners?

Getting started with Arduino can feel quite overwhelming at first because you're faced with the decision of what board to buy.
IEEE

An Arduino Based Heartbeat Detection Device (ArdMob-ECG) for Real-Time ECG Analysis

Abstract: This technical paper provides a tutorial to build a low-cost (10–100 USD) and easy to assemble ECG device (ArdMob-ECG) that can be easily used for a variety of different scientific studies.
GitHub

Device Input Plugin for Touch Portal

Note: As with all plugins, this requires the Touch Portal Pro (paid) version. TP v4+ is required. Use the latest available Touch Portal version for best results ...
IEEE

The International Roadmap for Devices and Systems: A Beacon for the Electronics Industry

Abstract: The semiconductor industry moves at a frantic pace, introducing new technologies every two years. The electronics industry announces a new product every six to nine months. It would be ...
Reuters

India orders smartphone makers to preload state-owned cyber safety app

Directive affects Apple, Samsung, Vivo, Oppo, Xiaomi Government says app combats cyber security threats Industry concerned over lack of prior consultation India has more than 1.2 billion telecom users ...