Wireless devices such as smart meters, trackers, and sensors need connections at multiple frequency bands with low power consumption, thus requiring multiband efficient antenna systems. At the same time, antennas should be small to easily fit in scarce space existing wireless devices. Small, multiband, operation is addressed here non-resonant elements, featuring volumes less than 90 mm3 for ope...

Abstract Background A balanced diet and nutrition greatly influence our immune system’s ability regulate the risk severity of infections. This review presented possible patho-mechanisms vitamins C D in COVID-19 immunity. Main body Deregulation system including decreased level boosters is invariably reported COVID-19. Vitamin vitamin are among boosters; homeostasis those was found essential for ...

The sharp increase in the number of new COVID-19 cases late 2021 and early 2022, which occurred even countries with high vaccination levels, has raised question about possibility overcoming pandemic only through vaccination. Averaged daily numbers deaths per capita their ratio were used to find links percentages fully vaccinated people boosters tests case ratio. datasets for European some other...

Quantum computing is believed to be particularly useful for the simulation of chemistry and materials, among various applications. In recent years, there have been significant advancements in development near-term quantum algorithms simulation, including VQE many its variants. However, such useful, they need overcome several critical barriers inability prepare high-quality approximations ground...