Quasicrystals are materials with unique, non-periodic symmetry that distinguishes them from conventional crystals. Approximant crystals, often regarded as precursor materials closely related to ...

Acute kidney injury (AKI) occurs in up to half of infants admitted to the neonatal intensive care unit (NICU) and is associated with increased risks of death and more days of mechanical ventilation, ...

Relational calculus. Query processing and optimization. Transaction processing: failure, recovery, and concurrency. Database security. Logic-based systems. Parallel ...