مطالعات بالینی و اپیدمیولوژیک را می توان به مطالعات مداخله ای و مشاهده ای متمایز کرد. مطالعات مداخله ای مستقیماً در زندگی شرکت کنندگان در مطالعه مداخله می کند. برخی از شرکت کنندگان در مطالعه یک "مداخله" دریافت می کنند، که می تواند، برای مثال، یک دارو یا روش جراحی جدید باشد.
مطالعات بالینی و اپیدمیولوژیک را می توان به مطالعات مداخله ای و مشاهده ای متمایز کرد. مطالعات مداخله ای مستقیماً در زندگی شرکت کنندگان در مطالعه مداخله می کند. برخی از شرکت کنندگان در مطالعه یک "مداخله" دریافت می کنند، که می تواند، برای مثال، یک دارو یا روش جراحی جدید باشد.
Telegram has gained a reputation as the “secure” communications app in the post-Soviet states, but whenever you make choices about your digital security, it’s important to start by asking yourself, “What exactly am I securing? And who am I securing it from?” These questions should inform your decisions about whether you are using the right tool or platform for your digital security needs. Telegram is certainly not the most secure messaging app on the market right now. Its security model requires users to place a great deal of trust in Telegram’s ability to protect user data. For some users, this may be good enough for now. For others, it may be wiser to move to a different platform for certain kinds of high-risk communications. Update March 8, 2022: EFF has clarified that Channels and Groups are not fully encrypted, end-to-end, updated our post to link to Telegram’s FAQ for Cloud and Secret chats, updated to clarify that auto-delete is available for group and channel admins, and added some additional links. He said that since his platform does not have the capacity to check all channels, it may restrict some in Russia and Ukraine "for the duration of the conflict," but then reversed course hours later after many users complained that Telegram was an important source of information. "We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said. "And that set off kind of a battle royale for control of the platform that Durov eventually lost," said Nathalie Maréchal of the Washington advocacy group Ranking Digital Rights.
from it
