The Pentavalent State of Americium

The unveiled states of americium.

The pentavalent antimonial therapy

Sharon Rose Aragão Macedo , Larissa Deadame de Figueiredo Nicolete , Amália dos Santos Ferreira , Neuza Biguinati de Barros , Roberto Nicolete ⁎ a Laboratório de Biotecnologia Aplicada à Saúde, Fundação Oswaldo Cruz (Fiocruz Rondônia), BR-364, Km 3,5, 76812-245 Porto Velho, RO, Brazil b Programa de Pós-Graduação em Biologia Experimental (PGBioexp), Universidade Federal de Rondônia, BR-364, Km 9...

The metabolism of americium in the rat.

The announcement of the discovery of element 95 was made in 1946 by Seaborg and his associates (1). Like neptunium (element 93), plutonium (element 94), and curium (element 96) this new element, americium, is radioactive and has not been observed in nature in appreciable amounts. During the war an extensive study was made of the metabolic properties of plutonium (2) and several other heavy elem...

Magnetic polarization of the americium J=0 ground state in AmFe(2).

Trivalent americium has a nonmagnetic (J=0) ground state arising from the cancellation of the orbital and spin moments. However, magnetism can be induced by a large molecular field if Am^{3+} is embedded in a ferromagnetic matrix. Using the technique of x-ray magnetic circular dichroism, we show that this is the case in AmFe_{2}. Since ⟨J_{z}⟩=0, the spin component is exactly twice as large as ...

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...