Mercury toxicity mediated by different forms of mercury is a major health problem; however, the molecular mechanisms underlying toxicity remain elusive. We analyzed the effects of mercuric chloride (HgCl(2)) and monomethylmercury (MeHg) on the proteins of the mammalian thioredoxin system, thioredoxin reductase (TrxR) and thioredoxin (Trx), and of the glutaredoxin system, glutathione reductase (...

The nuclear quadrupole resonance of 14N was observed in KoPt(SCN)6 and K2Hg(SCN)4 at various temperatures. Both compounds yield large asymmetry parameters indicating the existence of asymmetric ^-electron distribution about a CN bond axis. The ionic character of metal-ligand bonds in the platinum and mercury complexes is estimated to be 28% and 58 %, respectively. The temperature dependence of ...

The methods of polarographic analysis have been applied to the study of dilute aqueous solutions of various divalent transition metal cations coordinated to p-toluenesulfonyl glycine. Metal cations used were cadmium (II), copper (II), lead (II), mercury (II), manganese (II) and zinc (II). Six new and previously unreported compounds were prepared and studied polarographically, and their dissocia...

In contrast to the extraordinary achievements of cation complexation in host-guest chemistry, only recently has anion complexation by compounds containing electrondeficient atoms such as boron, mercury, tin and silicon received attention. We here present a new class of carborane-supported macrocyclic multidentate Lewis acid hosts which bind nucleophilic species to form isolable host-guest compl...

Gravitational Thomas Precession ( GTP ) is the name given to Thomas Precession when the acceleration is caused by a gravitational force field. The GTP gives a negative contribution of 7 · 163 arcsec/century for the anomalous perihelion advance of Mercury’s orbit.This effect seems to be of some concern for the General Relativity. PACS: 04.80Cc ; 96.30Dz

For composite systems made of N different particles living in a space characterized by the same deformed Heisenberg algebra, but with different deformation parameters, we define the total momentum and the center-of-mass position to first order in the deformation parameters. Such operators satisfy the deformed algebra with new effective deformation parameters. As a consequence, a two-particle sy...

Starting with the flat space-time relativistic versions of Maxwell-Heaviside’s toy model vector theory of gravity and introducing the gravitational analogues for the electromagnetic Lienard-Wiechert potentials together with the notion of a gravitational Thomas Precession; the observed anomalous perihelion advance of Mercury’s orbit is here explained as a relativistic effect in flat (Minkowski) ...

Gravitational Thomas Precession ( GTP ) is the name given to the Thomas Precession when the acceleration is caused by a gravitational force field. In continuation of our discussion on the idea of a GTP, in this note by way of considering the motion of a planet around the Sun, the GTP is shown to be a gravitomagnetic effect that a planet might experience while moving through a gravitational fiel...