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کدام یک از مکانیسم‌های زیر در فرآیند ایجاد بافت‌های مهندسی‌شده، برای تحریک تمایز سلولی از طریق مکانیسم‌های فیزیکی و شیمیایی در داربست‌ها، به کار می‌رود؟
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Anonymous Quiz
الف) استفاده از داربست‌های هیدروژلی که قادر به ایجاد فشار هیدرواستاتیک هستند
ب) استفاده از داربست‌های سه‌بعدی با خواص الکترواتراکتیو
استفاده از داربست‌های گرافنی که قابلیت جذب و آزادسازی یون‌ها را دارند
استفاده از داربست‌های فلزی که خواص مکانیکی بالا دارند و به تحریک میکانیکی سلول‌ها می‌پردازند
You may recall that, back when Facebook started changing WhatsApp’s terms of service, a number of news outlets reported on, and even recommended, switching to Telegram. Pavel Durov even said that users should delete WhatsApp “unless you are cool with all of your photos and messages becoming public one day.” But Telegram can’t be described as a more-secure version of WhatsApp. "He has to start being more proactive and to find a real solution to this situation, not stay in standby without interfering. It's a very irresponsible position from the owner of Telegram," she said. But the Ukraine Crisis Media Center's Tsekhanovska points out that communications are often down in zones most affected by the war, making this sort of cross-referencing a luxury many cannot afford. A Russian Telegram channel with over 700,000 followers is spreading disinformation about Russia's invasion of Ukraine under the guise of providing "objective information" and fact-checking fake news. Its influence extends beyond the platform, with major Russian publications, government officials, and journalists citing the page's posts. Friday’s performance was part of a larger shift. For the week, the Dow, S&P 500 and Nasdaq fell 2%, 2.9%, and 3.5%, respectively.
from ru
