Ученые химического факультета и факультета наук о материалах МГУ совместно с коллегами из институтов РАН решили сложную задачу по синтезу органометаллических комплексов сразу с двумя разными лантанидами. Молекулы уже подтвердили свои свойства как термолюминесцентные термометры. Результаты работы, поддержанной грантом РНФ, опубликованы в Journal of Materials Chemistry С.
Ученые химического факультета и факультета наук о материалах МГУ совместно с коллегами из институтов РАН решили сложную задачу по синтезу органометаллических комплексов сразу с двумя разными лантанидами. Молекулы уже подтвердили свои свойства как термолюминесцентные термометры. Результаты работы, поддержанной грантом РНФ, опубликованы в Journal of Materials Chemistry С.
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. 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. This ability to mix the public and the private, as well as the ability to use bots to engage with users has proved to be problematic. In early 2021, a database selling phone numbers pulled from Facebook was selling numbers for $20 per lookup. Similarly, security researchers found a network of deepfake bots on the platform that were generating images of people submitted by users to create non-consensual imagery, some of which involved children. 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. But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat.
from tr
