: Optical separate spatial dark and bright soliton pairs in steady-state case in one dimension, for a series circuit consisting of two-photon photorefractive (PR) crystal are investigated. Each crystal can be supported the spatial soliton, and at least one must be photovoltaic. The two solitons are known collectively as separate spatial soliton pairs with dark–dark, bright–dark and bright–brigh...

Introduction: Oxidative stress plays a key role in the pathophysiology of the Alzheimer's disease and it seems that antioxidants may slow the progress of the disease. The current study aimed at investigating the possible protective effects of callistephin (a natural flavonoid) against amyloid β (Aβ)-induced neurogenesis deficits in rats. Methods: Adult Wistar male rats in the current...

Electrical Impedance Tomography (EIT) for prostate and breast cancer detection require wide-band ac current drivers which can deliver current up to 10MHz. The current drivers should exhibit low harmonic distortion and provide accurate current to the tissue being examined. This work presents an integrated current driver which can deliver 1.2mA of current up to frequencies of 10MHz. The current s...

The interaction of metal-molecule-metal junctions with light is considered within a simple generic model. We show, for the first time, that light-induced current in unbiased junctions can take place when the bridging molecule is characterized by a strong charge-transfer transition. The same model shows current-induced light emission under potential bias that exceeds the molecular excitation ene...