Plasmaspheric hiss is one of the most important plasma waves in Earth's magnetosphere to contribute radiation belt dynamics by pitch-angle scattering energetic electrons via wave-particle interactions. There growing evidence that temporal and spatial variability interactions are factors construction diffusion-based models belts. Hiss amplitudes thought be coherent across large distances on long...

We conduct electromagnetic particle simulations in a uniform magnetic environment to verify the nonlinear wave growth process of plasmaspheric hiss equatorial plasmasphere. The satisfaction separability criterion for coexisting multiple frequency waves initial stage wavenumber-time evolution declares that packets are coherent and capable growing nonlinearly. Spatial temporal evolutions two typi...

Precipitation into the Earth's atmosphere due to pitch angle scattering by plasma waves has been recognized as one of major loss mechanisms for energetic electrons. In this study, we quantitatively evaluate their roles in precipitating electrons during a conjunction event with modulated electron precipitation observed at low altitudes Electron Loss and Fields INvestigation three types whistler ...

Invariant theory has been a major subject of research in the 19th century. One of the highlights was Gordan’s famous theorem from 1868 showing that the invariants and covariants of binary forms have a finite basis. His method was constructive and led to explicit degree bounds for a system of generators (Jordan 1876/79). In 1890, Hilbert presented a very general finiteness result using completel...

The gene encoding nucleosidediphosphate kinase (ndk) was located at 55 units on the Salmonella typhimurium chromosome. The ndk locus was 83% cotransducible with hisS and 2% cotransducible with glyA in phage P22-mediated crosses. A nucleosidediphosphate kinase mutant that produced only 10% of the wild-type enzyme activity (ndk-1) grew normally and produced a heat-labile enzyme.

BACKGROUND Animals typically show less habituation to biologically meaningful sounds than to novel signals. We might therefore expect that acoustic deterrents should be based on natural sounds. METHODOLOGY We investigated responses by western grey kangaroos (Macropus fulignosus) towards playback of natural sounds (alarm foot stomps and Australian raven (Corvus coronoides) calls) and artificia...