Search results for “propagation d'agents pathogènes”

What are viruses

Viruses do not have their own cells and metabolism. Moreover, they cannot reproduce without external help. Therefore, strictly speaking, they are not living beings. How do viruses reproduce? Author: 3sat nano/ rocket film/Titus Gust/Konstantin Fuchs Translation and dubbing: alugha Click here to

T Cell Types and Their Functions

For more Science Videos: https://lt.org/ * T cells are an important component of the body’s immune system. As ERIKA PEARCE explains, there are several types of T cells which form consecutively during the immune response and serve different purposes. Effector T cells combat pathogens from infections

Are carbon nanotubes safe or harmful?

Carbon nanotubes, or CNT, are being used to make products stronger, lighter, faster, and more efficient. But are they safe? A growing body of research is raising concerns over the hazards presented by some forms of the material. As ever though, the risk to health depends on who is exposed to what

The Heartbreak Machine: Nazis in the Echo Chamber

WhiteDate is a platform of white supremacists aimed at racists and anti-Semites – and is based on outdated infrastructure. What the 8,000 members didn't know was that some of the Nazis flirted with realistic-looking chatbots this year - and even fell in love with them. Using a combination of automat