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Assessment of arsenic and fluorine in surface soil to determine environmental and health risk factors in the Comarca Lagunera, Mexico.
Total, bioaccessible and mobile concentrations of arsenic and fluorine are determined in polluted surface soil within the Comarca Lagunera region using standardized protocols to obtain a fullExpand
Spatial distribution, mobility and bioavailability of arsenic, lead, copper and zinc in low polluted forest ecosystem in North-western Mexico.
A geochemical-environmental mapping was carried for a low polluted forest in North-western Mexico, as part of the North American forests accounting for environmental behavior of arsenic (As), lead (Pb), zinc (Zn) and copper (Cu) in soil and tree components (stem wood and aciculums). Expand
Arsenopyrite weathering under conditions of simulated calcareous soil
It is proposed that arsenic release occurs via diffusion across secondary α, γ-FeOOH structures during arsenopyrite weathering, and the environmental impacts under semi-alkaline carbonated conditions are evaluated. Expand
Electronic Structure of Carotenoids in Natural and Artificial Photosynthesis
This chapter is about a theoretical study applied to six carotenoids present in vegeta‐ bles containing carotenes and xanthophylls. Electronic properties are analyzed such as energy in frontierExpand
Synthesis and characterization of potassium hexatitanate using boric acid as the flux
Abstract In this study, the viability of obtaining potassium hexatitanate fibers (K 2 Ti 6 O 13 ) via the flux method using boric acid subjected to different melting temperatures and cooling mediaExpand
Changes in biooxidation mechanism and transient biofilm characteristics by As(V) during arsenopyrite colonization with Acidithiobacillus thiooxidans
It is revealed that arsenic can enhance bacterial reactions during bioleaching, which can strongly influence its mobility and rapid modification in biofilm from hydrophilic to hydrophobic character. Expand
Optimized Design of an ECAP Die Using the Finite Element Method for Obtaining Nanostructured Materials
An alloy type A16060 was exposed to severe plastic deformation to study its reaction using the finite element method (FEM). To perform this, six different configurations were used in the design ofExpand
Spatial distribution, mobility and potential health risks of arsenic and lead concentrations in semiarid fine top-soils of Durango City, Mexico
Abstract Significant amounts of mining wastes containing Fe-oxide rich phases (i.e., hard rock dumps, tailing impoundments) have been historically deposited in semiarid soils within Durango City.Expand
A Study of the Catalyst/Absorbent Effect on the Hydrogen Production by Solid Absorption Enhanced Water Gas Shift (SAEWGS)
The combination of the WGS and CO2 solid absorption (SAEWGS) produce H2 and CO2 separation in one step. Experimental conditions: quartz-made fixed bed reactor at SV = 1500 h-1, feed; 5 % CO, 15 %Expand