Abstract: PET systems with TOF-DOI capabilities provide excellent spatial and timing performance. However, they typically require a large number of readout channels, which increase system complexity, ...

Summary: Neurons can rapidly rebalance their communication using a structural signal rather than electrical activity, overturning long-held assumptions about how synapses maintain stability. When ...

Maggie Haberman on the significance of President Trump's threat to invoke the Insurrection Act in Minneapolis ...

The inspector general concluded that the defense secretary violated the Pentagon’s instructions on using a private electronic device to share sensitive information. By John Ismay Reporting from ...

WASHINGTON (AP) — The Pentagon’s watchdog found that Defense Secretary Pete Hegseth put U.S. personnel and their mission at risk when he used the Signal messaging app to convey sensitive information ...

[Dhananjay Gadre] happened across a useful little trick the other day. Take any old 1N4148 or 1N914 glass-package signal diode and wire it up right, and you’ve got yourself a nifty little IR detector.

This video explains how diodes function as directional components in electronic circuits. Diodes allow current to flow in only one direction, making them essential for tasks like rectification, ...

This video explains the function of diodes and how they are used to control the flow of electrical current in electronic circuits. Diodes are essential components that allow current to move in only ...

When WhatsApp changed its terms in 2021, I was one of the many users who looked for alternative messaging apps for Android. While I had heard about Signal before, the controversial move by WhatsApp ...

A hacker has exploited a vulnerability in TeleMessage, which provides modded versions of encrypted messaging apps such as Signal, Telegram, and WhatsApp, to extract archived messages and other data ...