User authentication (UA) is the process by which biometric techniques are used a person to gain access physical or virtual site. UA has been implemented in various applications such as financial transactions, data privacy, and control. Various techniques, facial fingerprint recognition, have proposed for healthcare monitoring address recognition problems. Photoplethysmography (PPG) technology a...

cutaneous lesions in fishes due to viral, bacterial, parasitic, mechanical and chemical agents are very common, leading to severe infection and high mortality. the aim of this research was to investigate the effect of long term bath of zinc sulfate (15 and 23 ppm), healing of cutaneous lesions caused by surgical incision in carps. in this study, 210 carps were disinfected by 3% salt solution fo...