پژوهشگران یک پوشش زیست‌الهام‌گرفته برای دستگاه‌های پزشکی مانند استنت‌ها و کاتترها طراحی کرده‌اند که از تشکیل لخته‌های خون جلوگیری می‌کند.👩🏻💻🔬🩸📚
این پوشش از ساختار داخلی رگ‌های خونی تقلید کرده و با جذب پروتئین‌های پلاسما مانع فعال شدن آن‌ها در فرآیند انعقاد خون می‌شود. در آزمایش‌های پیش‌بالینی، این پوشش توانست زمان لخته شدن خون را به‌طور قابل‌توجهی افزایش دهد و می‌تواند جایگزین ایمن‌تری برای داروهای رقیق‌کننده خون باشد. این فناوری نوآورانه امید زیادی برای کاهش عوارض مرتبط با دستگاه‌های کاشتنی ایجاد کرده است.
پژوهشگران یک پوشش زیست‌الهام‌گرفته برای دستگاه‌های پزشکی مانند استنت‌ها و کاتترها طراحی کرده‌اند که از تشکیل لخته‌های خون جلوگیری می‌کند.👩🏻💻🔬🩸📚
این پوشش از ساختار داخلی رگ‌های خونی تقلید کرده و با جذب پروتئین‌های پلاسما مانع فعال شدن آن‌ها در فرآیند انعقاد خون می‌شود. در آزمایش‌های پیش‌بالینی، این پوشش توانست زمان لخته شدن خون را به‌طور قابل‌توجهی افزایش دهد و می‌تواند جایگزین ایمن‌تری برای داروهای رقیق‌کننده خون باشد. این فناوری نوآورانه امید زیادی برای کاهش عوارض مرتبط با دستگاه‌های کاشتنی ایجاد کرده است.
At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. Telegram has become more interventionist over time, and has steadily increased its efforts to shut down these accounts. But this has also meant that the company has also engaged with lawmakers more generally, although it maintains that it doesn’t do so willingly. For instance, in September 2021, Telegram reportedly blocked a chat bot in support of (Putin critic) Alexei Navalny during Russia’s most recent parliamentary elections. Pavel Durov was quoted at the time saying that the company was obliged to follow a “legitimate” law of the land. He added that as Apple and Google both follow the law, to violate it would give both platforms a reason to boot the messenger from its stores. Russians and Ukrainians are both prolific users of Telegram. They rely on the app for channels that act as newsfeeds, group chats (both public and private), and one-to-one communication. Since the Russian invasion of Ukraine, Telegram has remained an important lifeline for both Russians and Ukrainians, as a way of staying aware of the latest news and keeping in touch with loved ones. In view of this, the regulator has cautioned investors not to rely on such investment tips / advice received through social media platforms. It has also said investors should exercise utmost caution while taking investment decisions while dealing in the securities market. Overall, extreme levels of fear in the market seems to have morphed into something more resembling concern. For example, the Cboe Volatility Index fell from its 2022 peak of 36, which it hit Monday, to around 30 on Friday, a sign of easing tensions. Meanwhile, while the price of WTI crude oil slipped from Sunday’s multiyear high $130 of barrel to $109 a pop. Markets have been expecting heavy restrictions on Russian oil, some of which the U.S. has already imposed, and that would reduce the global supply and bring about even more burdensome inflation.
from sg
