A previously developed spectrometer for broadband electron paramagnetic resonance (EPR) spectroscopy of dilute randomly oriented systems has been considerably modified to extend the frequency reach down hundred MHz range and boost concentration sensitivity by 1 2 orders magnitude. The instrument is now suitable study biological in particular metalloproteins. As a proof concept, examples from cl...

Abstract Babinet complementary patterns of a spectrally tunable metamaterial incorporating nematic liquid crystal is normally assumed to exhibit the same tuning range. Here we show that for hybrid, crystal-loaded metamaterial, sensitivity its terahertz resonances variations refractive index differs substantially two patterns. This due mismatch between alignment and direction local electric fiel...

Many types of neurons exhibit subthreshold resonance. However, little is known about whether this frequency preference influences spike emission. Here, the link between subthreshold resonance and firing rate is examined in the framework of conductance-based models. A classification of the subthreshold properties of a general class of neurons is first provided. In particular, a class of neurons ...