BACKGROUND Routine renovation of older housing is a risk factor for childhood lead poisoning, but the contribution to children's blood lead levels is poorly defined for children with lower exposure levels. METHODS We examined a prospective cohort of 276 children followed from 6 to 24 months of age. We conducted surveys of renovation activities and residential lead hazards and obtained blood l...

catecholamine is a group of neurotransmitters that is believed to be responsible for the normal function of animal brain. physiological and behavioral changes of human body have been reported due to the damage of the brain function following lead exposure. due to the assumption of lead disposal in brain tissue with two year for its half-life, which results in alteration of brain function, we in...

The sorption and desorption of Pb on RuO2.xH2O were examined kinetically and thermodynamically via spectroscopic and macroscopic investigations. X-ray absorption spectroscopy (XAS) was employed to determine the sorption mechanism with regard to identity and interaction of nearest atomic neighbors, bond distances (R), and coordination numbers (N). The kinetics of the Pb-Ru-oxide sorption reactio...

Perylene-3,4:9,10-tetracarboxylic acid bisimides (PBs) were incorporated synthetically into oligonucleotides by using automated DNA building-block chemistry. The 2'-deoxyribofuranoside of the natural nucleosides was replaced by (S)-aminopropan-2,3-diol as an acyclic linker between the phosphodiester bridges that is tethered to one of the imide nitrogen atoms of the PB dye. The S configuration o...

The second-order azimuthal anisotropy Fourier harmonics, v2, are obtained in p-Pb and PbPb collisions over a wide pseudorapidity (η) range based on correlations among six or more charged particles. The p-Pb data, corresponding to an integrated luminosity of 35  nb-1, were collected during the 2013 LHC p-Pb run at a nucleon-nucleon center-of-mass energy of 5.02  TeV by the CMS experiment. A samp...

The systematics of Statistical Model parameters extracted from heavy-ion collisions at lower energies are exploited to extrapolate in the LHC regime. Predictions of various particle ratios are presented and particle production in central Pb-Pb collisions at LHC is discussed in the context of the Statistical Model. The sensitivity of several ratios on the temperature and the baryon chemical pote...

ALICE at the LHC, collecting data in Pb-Pb, p-Pb and pp collisions, aims for the characterisation of the strongly interacting matter at unprecedented energy densities. While the first running period until 2018 can provide detailed description of the global and bulk phenomena and a first set of intriguing results on rare probes of heavy-ion collisions, many important questions involving rare pro...

The centrality dependence of (multi-)strange hadron abundances is studied for Pb(158AGeV)Pb reactions and compared to p(158GeV)Pb collisions. The microscopic transport model UrQMD is used for this analysis. The predicted Λ/π−, Ξ−/π− and Ω−/π− ratios are enhanced due to rescattering in central Pb-Pb collisions as compared to peripheral Pb-Pb or p-Pb collisions. However, the enhancement is substa...