J. M. Buldú 2 and Mason A. Porter 4, 5 Laboratory of Biological Networks, Center for Biomedical Technology (UPM), 28223, Pozuelo de Alarcón, Madrid, Spain Complex Systems Group & G.I.S.C., Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain Department of Mathematics, University of California Los Angeles, Los Angeles, USA Oxford Centre for Industrial and Applied Mathematics, Mathematical ...

Mussel shells are potential bioarchives of proxies for changes in the physicochemical conditions in the bivalve’s habitat. One such proxy is the distribution of rare earths and yttrium (REY) in seawater, as REY speciation in seawater is sensitive to pH and temperature variations, due to the impact of these parameters on the activity of CO 3 in seawater. We present a new protocol for sample prep...

The demand for novel, cost-effective, and environmentally friendly rare earth element yttrium (REY) sources is essential. recovery of REY other valuable components from coal fly ash (CFA) may result in securing alternative resources, decreased disposal costs, environmental protection, all which have positive effects. However, research on the CFA underway, it still necessary to assess its viabil...

Risk-based assessment methods are commonly used at the contaminated sites by hydrocarbon pollutants. This paper presents the results of a two-dimensional finite volume model of reactive transport of biodegradable BTEX which have been developed for the saturated zone of an unconfined aquifer in the Pump station area of Tehran oil refinery, Iran. The model governing equations were numerically sol...

in this work x-ray fluorescence (xrf) technique was used to evaluate the soil pollution withheavy metals for twenty four surface soil samples (0–10 cm in depth) from various locations to cover theindustrial area in omdurman city, sudan. concentrations of 10 elements cr, ni, cu, zn, zr, pb, rb, co, cd andas were determined. it was found that cr, cu and cd concentrations for almost all studied si...

Deep-sea sediments generally refer to the distributed on seafloor with a depth of more than 2000 m. Many rare earth elements and yttrium (REY)-rich were recently discovered in sea area Minamitorishima Island, Northwest Pacific. To understand material source REY enrichments this area, here, we performed clay minerals Sr-Nd isotopes analyses gravity core GC1601 gained Southeast Sea Island. The mi...

REY area has been located in Tehran Province and several archaeological ruins of this area indicate that the settlement in this area has been started since several thousand years ago. In this paper, the main investigation items consist of analysis of oil components and groundwater quality inside the wells. By finding the contents of oil in the well, it is possible to find out the pollution sour...

Understanding the possible consequences of anthropogenic activities on REY environmental fate and adverse effects biota requires a detailed knowledge their distribution between particulate, colloidal dissolved fractions. Such information is practically non-existent for peri-urban rivers having heavily populated basins suffering from direct impacts various human activities. The present study com...