We calculate the frequency-dependent admittance of a phase-biased Josephson junction spanning magnetic impurity or spinful Coulomb-blockaded quantum dot. The local moment gives rise to Yu-Shiba-Rusinov bound states, which govern subgap absorption as well inductive response. model system by superconducting spin-polarized exchange-cotunnel and linear current response an ac bias voltage, including...

The proportional bias of four methods frequently used for determining low concentrations of protein was evaluated with human serum protein fractions (Cohn Fractions II, III, IV, and V). Each fraction was assigned a protein concentration value as determined by the biuret method, calibrated with purified human serum albumin monomer. All four methods (Coomassie Brilliant Blue dye-binding, the meth...

One well-known way to constrain the hydrogen neutral fraction, x̄HI, of the high-redshift intergalactic medium (IGM) is through the shape of the red damping wing of the Lyα absorption line. We examine this method’s effectiveness in light of recent models showing that the IGM neutral fraction is highly inhomogeneous on large scales during reionization. Using both analytic models and “semi-numeric...

Cognitive-behavioral models of health anxiety stress the importance of selective attention not only towards internal but also towards external health threat related stimuli. Yet, little is known about the time course of this attentional bias. The current study investigates threat related attentional bias in participants with varying degrees of health anxiety. Attentional bias was assessed using...

We report on a comparison between the midinfrared absorption and the photocurrent response of n-doped InAs/GaAs self-assembled quantum dots. The absorption, resonant at 160 meV, is polarized along the z growth axis of the dots. The photocurrent is dominated by a z-polarized resonance around 220 meV ~5.6 mm wavelength!. A weaker component of the photocurrent is observed for an in-plane polarized...

Transient absorption spectroscopy on the μs-s time scale is used to monitor the yield and decay dynamics of photogenerated holes in nanocrystalline hematite photoanodes. In the absence of a positive applied bias, these holes are observed to undergo rapid electron-hole recombination. The application of a positive bias results in the generation of long-lived (3 ± 1 s lifetime) photoholes.