We study the effect of a large-amplitude left-hand polarized wave on ion acoustic instabilities. We show that the presence of a finite amplitude left-hand polarized wave produces electrostatic instabilities above a threshold ...

Nonlinear electrostatic instabilities have been shown to occur frequently and under very different conditions in plasma with two ion beams such as the fast solar wind. These instabilities can be triggered when the phase ...

The binding of apomorphines AM. to D1 and D2 dopamine receptors is analyzed through a formal quantum structure]activity relationship method. The calculations were carried out at the CNDOr2 level of the molecular orbital ...

In order to examine environmental effects, the interaction oí histamine (HA) with a model of the H2 receptor was analyzed using the self-consistent reaction field theory at the CNDO/21evel, in vacuo, and in the presence ...

The role of electrostatic ion-beam instabilities in the generation of the broadband electrostatic noise in the earth’s magnetotail and in electrostatic bursts in comets is discussed. The theory of electromagnetic ion-cyclotron ...

Two- and three-compartment copper electrowinning (EW) cells based on reactive electrodialysis (RED) have been studied. The catholyte was cupric sulphate and the anolyte was ferrous sulphate, both dissolved in sulphuric ...

The elemental content of some soils of continental Chile and the Antarctic Peninsula are reported. The elements: Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd and Pb were analyzed. Trace elements differed among soils. The values ...

In Chile, the State Public Health Office (Ministerio de Salud Pública) is responsible for pollution control and for air quality. This office has been monitoring only toxic gases and total suspended particulate matter.1.2 ...

Background: The health effects of particulate air pollution are widely recognized and there is some evidence that the magnitude of these effects vary by particle component. We studied the effects of ambient fine particles ...

Nuestro objeto de estudio son los criterios de conexión territorial del hecho imponible renta: residencia, domicilio y fuente de la renta. El análisis está centrado en la legislación nacional. Comenzaremos con el ...