It was recently shown that the affinity of doubly charged, 1-3 diaminopropane (Dap(2+)) for DNA permits the growth on highly ordered pyrolitic graphite (HOPG) substrates, of plasmid DNA films, of known uniform thickness [O. Boulanouar, A. Khatyr, G. Herlem, F. Palmino, L. Sanche, and M. Fromm, J. Phys. Chem. C 115, 21291-21298 (2011)]. Post-irradiation analysis by electrophoresis of such target...

The electronic structure of NiO nanometric planar islands on highly oriented pyrolitic graphite has been studied by means of the Ni 2p and O 1s x-ray absorption spectra. The O 1s spectrum of the early stages of growth shows a double peak at threshold which is attributed to a splitting of the unoccupied Ni eg states. This spectrum is compared to previous results for 3 nm NiO nanoparticles which ...

In this study, pollution level, distribution, toxicity, molecular composition, probable sources as well health risks of polycyclic aromatic hydrocarbons (PAHs) in urban and industrial soils Kerman metropolis were investigated. is a fast-growing city fine example an arid developing country. For purpose, concentrations 16 individual PAHs 30 samples taken from the its zones determined by gas chrom...

In the present study, the acute toxicity of 10 polycyclic aromatic hydrocarbons (PAHs) associated with the Prestige fuel oil spill (Spain, 2002) were evaluated, either as single substances or in mixtures, in adults of the copepod Oithona davisae. All but dimethylphenanthrene had negative effects on O. davisae survival at concentrations below their water solubility, with 48-h median lethal conce...

Direct observation of surface roughness on metal films is a longstanding problem in thin film characte~tion. In this work the high quality of scanning tunnelhng microscopy (STM) was used for investigation of evaporated gold films. A scanning tunnel&g microscope able to scan areas up to 0.8 x 0.8 pm with high reproducibility is presented. The topography of 80 nm thick gold films grown under iden...

S U M M A R Y The seismic structure of large igneous provinces provides unique constraints on the nature of their parental mantle, allowing us to investigate past mantle dynamics from present crustal structure. To exploit this crust–mantle connection, however, it is prerequisite to quantify the uncertainty of a crustal velocity model, as it could suffer from considerable velocity–depth ambiguit...

Electrical conductivity of mantle minerals is highly sensitive to water content, so estimates this physical parameter based on long-period electromagnetic induction data can help constrain hydration. Reliable constraints require model with sufficient resolution at relevant depths, as well a comprehensive uncertainty analysis. In global study, we combine from the primarily ionospheric diurnal va...

Rubber seed oil (RSO) and its sodium soap were pyrolysed in a batch reactor to obtain low molar mass organic substances. The pyrolitic oil of RSO was redistilled and the distillates were characterized by GC-MS and FTIR. Density, acid value, saponification value and ester values were also measured according to the ASTM standard methods. A similar analysis was done for samples taken out at differ...