Ever since Varela and Maturana proposed the concept of autopoiesis as the minimal requirement for life, there has been a focus on cellular systems that erect topological boundaries to separate themselves from their surrounding environment.Here, we reconsider whether the existence of such a spatial boundary is strictly necessary for self-producing e
A photonic method of highly reconfigurable microwave waveform 5% generation based on time-wavelength interleaving has been proposed and experimentally demonstrated.By modulating multi-wavelength laser sources with Mach-Zehnder modulators (MZMs), multiple Nyquist pulses corresponding to different wavelengths are generated and overlapped with each ot
"nObjective: abortion either medical or criminal has distinctive physical, social, and psychological side effects.Detecting types and frequent psychological side effects of abortion among post abortion care seeking women in Tehran was the main objective of the present study."n Method: 278 women of reproductive age (15-49) interviewed as study