صورة توضح استخلاص الحمض النووي "DNA" من عينة دم وتعتبر هذهِ الغمامة البيضاء بمثابة باركود وخصائص حيوية لكل إنسان ينفرد بها عن غيره، ال DNA اختصار Deoxyribo Nucleic Acid وهي مادة وراثية موجودة في الإنسان تميزه عن غيرة ويحمل الصفات المورثة من الآباء.
صورة توضح استخلاص الحمض النووي "DNA" من عينة دم وتعتبر هذهِ الغمامة البيضاء بمثابة باركود وخصائص حيوية لكل إنسان ينفرد بها عن غيره، ال DNA اختصار Deoxyribo Nucleic Acid وهي مادة وراثية موجودة في الإنسان تميزه عن غيرة ويحمل الصفات المورثة من الآباء.
As the war in Ukraine rages, the messaging app Telegram has emerged as the go-to place for unfiltered live war updates for both Ukrainian refugees and increasingly isolated Russians alike. False news often spreads via public groups, or chats, with potentially fatal effects. What distinguishes the app from competitors is its use of what's known as channels: Public or private feeds of photos and videos that can be set up by one person or an organization. The channels have become popular with on-the-ground journalists, aid workers and Ukrainian President Volodymyr Zelenskyy, who broadcasts on a Telegram channel. The channels can be followed by an unlimited number of people. Unlike Facebook, Twitter and other popular social networks, there is no advertising on Telegram and the flow of information is not driven by an algorithm. Just days after Russia invaded Ukraine, Durov wrote that Telegram was "increasingly becoming a source of unverified information," and he worried about the app being used to "incite ethnic hatred." Telegram does offer end-to-end encrypted communications through Secret Chats, but this is not the default setting. Standard conversations use the MTProto method, enabling server-client encryption but with them stored on the server for ease-of-access. This makes using Telegram across multiple devices simple, but also means that the regular Telegram chats you’re having with folks are not as secure as you may believe.
from br
