We present new ultra-high precision Nd/Nd measurements of early Archaean rocks using the new generation thermal ionization mass spectrometer Triton. Repeated measurements of the Ames Nd standard demonstrate that the Nd/Nd ratio can be determined with external precision of 2 ppm (2r), allowing confident resolution of anomalies as small as 5 ppm. A major analytical improvement lies in the elimina...

The best strategy in the development of topical drug delivery systems may be to facilitate the permeation of drugs without any harmful effects, while staying on the skin surface and maintaining stability of the system. Nanodiamonds (NDs) play a key role with their excellent physicochemical properties, including high biocompatibility, physical adsorption, reactive oxygen species (ROS) scavenging...

In the metallic pyrochlore ${\mathrm{Nd}}_{2}{\mathrm{Mo}}_{2}{\mathrm{O}}_{7}$, conducting molybdenum sublattice adopts canted, yet nearly collinear, ferromagnetic order with nonzero scalar spin chirality. The chemical potential may be controlled by replacing ${\mathrm{Nd}}^{3+}$ ${\mathrm{Ca}}^{2+}$, while introducing only minimal additional disorder to states. Here, we demonstrate stability ...

Neodymium nickelates have attracted research interest due to their strongly correlated behavior and remarkable magnetic properties. More importantly, superconductivity has recently been confirmed in thin-film samples of Sr-doped ${\mathrm{NdNiO}}_{2}$, bringing the layered rare earth nickel oxides into spotlight. In this report, we present results on a series ${\mathrm{NdNiO}}_{2}$ analogs, ${\...

purpose: to determine the association between norrie disease (nd) gene mutations and advanced stages of retinopathy of prematurity (rop) in premature neonates who were referred to farabi eye hospital, tehran, iran during 2005-2007. methods: fifty infants including 28 male and 22 female subjects with rop stage 3 or worse were enrolled in this case series. all three exons of nd gene underwent pol...

The hydrolysis of uranyl-, Nd- and Ce-cations, induced by thermal decomposition urea was investigated the impact content experiment temperature on reaction kinetics evaluated. Uranyl precipitated as ammonium diuranate (ADU) with varying stoichiometry. Nd(III) Ce(III) showed comparable pH evolutions lanthanide carbonate hydroxide (LnCO3OH) products were identified, whereas Ce(IV) hydrolysed at l...

When nonwetting fluid displaces wetting fluid in a porous rock many rapid pore-scale displacement events occur. These events are often referred to as Haines jumps and any drainage process in porous media is an ensemble of such events. However, the relevance of Haines jumps for larger scale models is often questioned. A common counter argument is that the high fluid velocities caused by a Haines...