A married couple in line at the post office in Kyiv is chatting about delivery: "I need to pick up kamikaze drones for my buddies," says a man in his mid-30s. "The little ones?" his wife clarifies.

Photoplethysmography is a non-invasive technique used for measuring several vital signs and for the identification of individuals with an increased disease risk. Its principle of work is based on ...

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Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. The characterization of organic compounds in polluted matrices by eco-friendly ...

Rodents engage in active touch using their facial whiskers: they explore their environment by making rapid back-and-forth movements. The fast nature of whisker movements, during which whiskers often ...

"Washington has finally named its latest military operation in the Middle East. The choice–'Operation Inherent Resolve'–has both a loneliness and a longness about it, and even a sadness. It also ...