The f -plane and β-plane wave propagation properties are examined for discretisations of the linearized rotating shallow-water equations using the P1DG-P2 finite element pair on arbitrary triangulations in planar geometry. A discrete Helmholtz decomposition of the functions in the velocity space based on potentials taken from the pressure space is used to provide a complete description of the n...

Friendships play a major role in cognitive, emotional and social development in middle childhood. We employed the online Cyberball social exclusion paradigm to understand the neural correlates of dyadic social exclusion among best friends assessed simultaneously. Each child played with their friend and an unfamiliar player. Event-related potentials (ERPs) were assessed via electroencephalogram ...

The acute effects of aspirin on auditory functions were examined electrophysiologically in conscious rats with chronically implanted electrodes for auditory brainstem response (ABR) recording. A single intravenous injection of aspirin at a dose of 225 mg/kg caused a reduction in the amplitude of the ABR P1 wave evoked by a 2 kHz tone pip 1 and 24 hr after dosing at almost all sound intensity le...

We consider a wave equation with damping coefficient ∂ 2 u ∂t 2 (x, t) = ∂ 2 u ∂x 2 (x, t) + p1(x) ∂u ∂t (x, t) + p2(x) ∂u ∂x (x, t), 0 < x < 1, −T < t < T , u(x, 0) = 0, ∂u ∂t (x, 0) = δ(x), 0 ≤ x ≤ 1, ∂u ∂x (0, t) = ∂u ∂x (1, t) = 0, −T ≤ t ≤ T where T ≥ 2, the complex-valued functions p1, p2 ∈ C 1 [0, 1] and δ(x) is the Dirac delta function. We discuss an inverse problem of determining simul...

INTRODUCTION Serotonin seems to play a central role in tinnitus. The intensity dependence of auditory evoked potential (IDAP) is considered an index of central serotonergic activity in the auditory cortex. The higher the steepness of the N1/P2 component amplitude-stimulus function slope (N1/P2 ASF slope as calculated by IDAP), the lower the central serotonergic activity. Similarly, the N1 ampli...

After summarizing the current theoretical status of the four-body decay B → K∗(→ Kπ)μ+μ−, we apply the formalism of spin-symmetries to the full angular distribution, including the S-wave part involving a broad scalar resonance K∗ 0 . While we recover in the P-wave sector the known relation between the angular observables P (′) i , we find in the S-wave sector two new relations connecting the co...

OBJECTIVE To test the hypothesis that carriers of Bardet-Biedl syndrome have abnormal rod-mediated responses. METHODS Parents (n = 26) of children with Bardet-Biedl syndrome (BBS), who are obligate carriers of BBS, consented to scotopic, full-field electroretinography (ERG). Responses were recorded over a 4 to 5 log unit range, up to a maximum stimulus of approximately +3.6 log scotopic trola...

Event-related potentials (ERPs) were obtained to synthesized speech stimuli in 16 school-aged children (7-11 years) and compared to responses in 10 adults. P1, N1, and P2 event-related potentials were elicited by the phoneme /ga/. The mismatch negativity (MMN) was elicited by variants of /da/ and /ga/, which differ in the onset frequency of the second and third formant transitions. In general, ...

The electric organ discharge (EOD) of the mormyrid Pollimyrus isidori is a short pulse with three phases: (1) weak head positive (P1); (2) strong head negative (N); (3) weak head positive (P2). 1. At a stable water conductivity (100 microS/cm), which is near the upper end of the natural range in tropical Africa, there was a statistically significant difference between the sexes only in one of f...