The samples were also imaged at a Jeol JEM-1400 electron microscope. Substrates for helium ion microscopy were prepared by incubating silicon chips in poly-l-lysine (Sigma Aldrich) for five minutes ...

16 December 2019, Hessen, Kassel: The logo at the customer service centre of the teleshopping provider QVC. (Photo by Uwe Zucchi/picture alliance via Getty Images) ...

I’ve been PCMag’s home entertainment expert for over 10 years, covering both TVs and everything you might want to connect to them. I’ve reviewed more than a thousand different consumer ...