DeltaTime è un marcatempo virtuale geolocalizzato. Ogni utente abilitato, dopo la fase di autenticazione iniziale, è in grado di registrare date ed orari internet (in presenza di rete), o locali al device (in sua assenza), insieme alla posizione dell’avvenuta timbratura, ogni volta ...
Filter-paper residual toxicities of some insecticides used extensively in China were determined during 1994 using newly hatched (within 30 min) larvae of four Pectinophora gossypiella (Saunders) strains. The strains were field collections collected in the Yangtze River cotton-belt areas. Compared ...
Filter-paper residual toxicities of some insecticides used extensively in China were determined during 1994 using newly hatched (within 30 min) larvae of four Pectinophora gossypiella (Saunders) strains. The strains were field collections collected in the Yangtze River cotton-belt areas. Compared...