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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
In the past, it was noticed that through bulk SMSes, investors were induced to invest in or purchase the stocks of certain listed companies. 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. 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. Either way, Durov says that he withdrew his resignation but that he was ousted from his company anyway. Subsequently, control of the company was reportedly handed to oligarchs Alisher Usmanov and Igor Sechin, both allegedly close associates of Russian leader Vladimir Putin. 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.
from ua
