Blazars exhibit flares across the entire electromagnetic spectrum. Many γ-ray flares are highly correlated with flares detected at longer wavelengths; however, a small subset appears to occur in isolation, with little or no correlated variability at longer wavelengths. These “orphan” γ-ray flares challenge current models of blazar variability, most of which are unable to reproduce this type of ...

　Introduction: Anodal transcranial direct current stimulation (a-tDCS) of the primary motor cortex (M1) has been shown to be effective in increasing corticomotor excitability. 　Methods: We investigated whether longer applications of a-tDCS coincide with greater increases in corticomotor excitability compared to shorter application of a-tDCS. Ten right-handed healthy participants received one se...

The sensitivity of Fourier transform infrared spectroradiometers to the polarization state of incident radiance can become significant in radiometric measurements of a partially polarized source such as the sea surface. At off-nadir incidence angles and wavenumbers below about 2750 cm21 (wavelengths longer than 3.6 mm), radiance from the sea surface is partially vertically polarized, because th...

The Pb/Si(557) system exhibits a strong anisotropy in conductance below 78 K, with the evolution of a characteristic chain structure. Here we show, using angle-resolved photoemission, that chain ordering results in complete Fermi-like nesting in the direction normal to the chains; in addition, the domain structure along the chains forms split-off valence bands with mesoscopic Fermi wavelengths ...

The presented work is part of a study investigating the surgical diagnostic potential of Raman spectroscopy for the malignant brain tumor, glioblastoma multiforme (GBM). This work examines the trade-off of increased Raman signal observed using excitation at lower wavelengths (1/X4 signal dependence) versus the fluorescence caused by endogenous tissue fluorophores at those wavelengths. Within th...