Digital dynamic frequency offset removal and DC pilot tone assisted phase noise compensation enables the use of commercially available DS-DBR lasers as both the transmitter and LO in a coherent wavelength switched OFDM transceiver. A 1.5dB penalty relative to low linewidth static lasers is demonstrated under fast wavelength switched operation. Introduction The combination of higher order spectr...

We present the first report of global ionospheric disturbances due to most powerful Gamma Ray Burst GRB221009A occurred on 9 October 2022. Very Low Frequency (VLF) and (LF) sub-ionospheric radio signals are used diagnose effect GRB lower ionosphere. Both daytime nighttime effects analyzed in VLF LF bands. The magnitude signal perturbations varied with propagation condition (day/night), path len...

Metallic nanoparticles (NPs) are able to modify the excitation and emission rates (plasmonic enhancement) of fluorescent molecules in their close proximity. In this work, we measured the emission spectra of 20 nm Gold Nanoparticles (AuNPs) fixed on a glass surface submerged in a solution of different fluorophores using a spectral camera and 2-photon excitation. While on the glass surface, we ob...

The unfolding kinetics of horse cytochrome c in the oxidized state has been studied at 10, 22, and 34 degreesC as a function of guanidine hydrochloride (GdnHCl) concentration. Rapid (millisecond) measurements of far-UV circular dichroism (CD) as well as fluorescence quenching due to tryptophan to heme excitation energy transfer have been used to monitor the unfolding process. At 10 degreesC, th...

In the lateral geniculate nucleus (LGN) of the thalamus, visual stimulation produces two distinct types of responses known as tonic and burst. Due to the dynamics of the T-type Ca(2+) channels involved in burst generation, the type of response evoked by a particular stimulus depends on the resting membrane potential, which is controlled by a network of modulatory connections from other brain ar...

At present, microseismic technology is a widely used method for monitoring the rock burst phenomenon during construction of deep-buried tunnels. The fracture in tunnel will generate seismic waves. wave has strong randomness and low energy usually mixed with environmental noise, which called signal. signal received by geophone contain other noises. So, there an urgent need algorithm that can qui...

Autoantibodies to myeloperoxidase (MPO) are associated with small vessel systemic vasculitis. Interactions of these autoantibodies with MPO target antigen, Fcgamma receptors and Beta2 integrins at the neutrophil surface, can set in train a sequence of intracellular signal transduction events that culminate with functional responses. These include a respiratory burst with release of superoxide i...

A line-of-sight towards the Galactic Center (GC) offers largest number of potentially habitable systems any direction in sky. The Breakthrough Listen program is undertaking most sensitive and deepest targeted SETI surveys GC. Here, we outline our observing strategies with Robert C. Byrd Green Bank Telescope (GBT) Parkes telescope to conduct 600 hours deep observations across 0.7--93 GHz. We rep...

Concurrent coding is an encoding scheme with 'holographic' type properties that are shown here to be robust against a significant amount of noise and signal loss. This single encoding scheme is able to correct for random errors and burst errors simultaneously, but does not rely on cyclic codes. A simple and practical scheme has been tested that displays perfect decoding when the signal to noise...