Anales del III Congreso Internacional de Vivienda y Ciudad "Debate en torno a la nueva agenda urbana"

Acta de congresoEl III Congreso Internacional de Vivienda y Ciudad “Debates en torno a la NUEVa Agenda Urbana”, ha sido una apuesta de alto compromiso por acercar los debates centrales y urgentes que tensionan el pleno ejercicio del derecho a la ciudad. Para ello las instituciones organizadoras (INVIHAB –Instituto de Investigación de Vivienda y Hábitat y MGyDH-Maestría en Gestión y Desarrollo Habitacional-1), hemos convidado un espacio que se concretó con potencia en un debate transdisciplinario. Convocó a intelectuales de prestigio internacional, investigadores, académicos y gestores estatales, y en una metodología de innovación articuló las voces académicas con las de las organizaciones sociales y/o barriales en el Foro de las Organizaciones Sociales que tuvo su espacio propio para dar voz a quienes están trabajando en los desafíos para garantizar los derechos a la vivienda y los bienes urbanos en nuestras ciudades del Siglo XXI

La renovación de la palabra en el bicentenario de la Argentina : los colores de la mirada lingüística

El libro reúne trabajos en los que se exponen resultados de investigaciones presentadas por investigadores de Argentina, Chile, Brasil, España, Italia y Alemania en el XII Congreso de la Sociedad Argentina de Lingüística (SAL), Bicentenario: la renovación de la palabra, realizado en Mendoza, Argentina, entre el 6 y el 9 de abril de 2010. Las temáticas abordadas en los 167 capítulos muestran las grandes líneas de investigación que se desarrollan fundamentalmente en nuestro país, pero también en los otros países mencionados arriba, y señalan además las áreas que recién se inician, con poca tradición en nuestro país y que deberían fomentarse. Los trabajos aquí publicados se enmarcan dentro de las siguientes disciplinas y/o campos de investigación: Fonología, Sintaxis, Semántica y Pragmática, Lingüística Cognitiva, Análisis del Discurso, Psicolingüística, Adquisición de la Lengua, Sociolingüística y Dialectología, Didáctica de la lengua, Lingüística Aplicada, Lingüística Computacional, Historia de la Lengua y la Lingüística, Lenguas Aborígenes, Filosofía del Lenguaje, Lexicología y Terminología

Effects of Se-enrichment on plant growth and fruit quality of strawberry

International Conference Postharvest Unlimited (6th. 2017. Madrid, Spain

Solubility of Bismuth, Antimony and Arsenic in Synthetic and Industrial Copper Electrorefining Electrolyte

The precipitation of problematic Group 15 elements (As, Sb and Bi) in synthetic and industrial copper electrorefining electrolyte was examined. Using published thermodynamic values, the solubility products of BiAsO4 and SbAsO4 at 65 °C were calculated as 0.69 and 1.50 g2 L−2, respectively. Experiments were performed where solutions were spiked with arsenic, bismuth and/or antimony, and the start of precipitation was determined based on changes in solution turbidity. For arsenic concentrations of 9–13 g L−1, the concentrations of Bi necessary for the beginning of BiAsO4 precipitation were higher for the industrial electrolyte (0.25–0.50 g L−1) than the synthetic electrolyte (0.05–0.10 g L−1) at each arsenic concentration examined. The results indicate that industrial electrolyte has a greater capacity than the synthetic electrolyte with respect to the precipitation of BiAsO4. In the synthetic electrolyte, precipitation occurs at 0.30 g L−1 of Sb(III) in the presence of 9 g L−1 of As(V) without the addition of Bi, and 0.20 g L−1 with the addition 0.15 g L−1 Bi. At 10–12 g L−1 of As(V), a concentration of 0.10 g L−1 of Sb(III) produced precipitation. In industrial electrolyte, the increase in Sb(V) from 0.10 g L−1 to 0.16 g L−1, significantly increased precipitation. The presence of As and Sb in the +3 and + 5 appears to influence the solubility of antimony. Furthermore, the industrial electrolyte has enhanced solubility of Sb(III) up to 0.40 g L−1 before precipitation was detected

Source contribution and origin of PM10 and arsenic in a complex industrial region (Huelva, SW Spain)

Air pollution coming from industrial activities is a matter of interest since their emissions can seriously affect to the human health of nearby populations. A more detailed study about industrial emissions is required in order to discriminate different activities contributing to pollutant sources. In this sense, gaseous pollutants (NO2, SO2 and O3) and PM10 levels has been studied in a complex industrial area in the southwest of Spain (La Rabida and the nearby city of Huelva) during the period 1996-2017. Hourly, daily, monthly and annual variations of PM10 and gaseous pollutants concentrations point to the industrial activity as the main SO2 source. Furthermore, traffic and resuspension emissions contribute to the NO2 and PM10 levels, respectively. Results from chemical composition of PM10 at both sites during the period 2015-2017 are characterized by high concentrations of the crustal components derived from natural and local resuspension. Arsenic is found to be the main geochemical anomaly at La Rabida (annual mean of 7 ng m-3), exceeding the European annual target of 6 ng m-3, which supposes a risk for the nearby population. An emission source from Cu-smelter has been identified in La Rabida and Huelva. A second source corresponding to emissions from polymetallic sulfides handling in a port area has been described for the first time in La Rabida. In addition, arsenic speciation results have identified three different As impacts scenarios as a function of the dominant wind direction, the SO2 episodes and the As extraction efficiency: impact of the Cu-smelter, impact of the bulk polymetallic sulfides and a mixed impact of both sources.Peer reviewe

Solubility of Bismuth, Antimony and Arsenic in Synthetic and Industrial Copper Electrorefining Electrolyte

The precipitation of problematic Group 15 elements (As, Sb and Bi) in synthetic and industrial copper electrorefining electrolyte was examined. Using published thermodynamic values, the solubility products of BiAsO4 and SbAsO4 at 65 °C were calculated as 0.69 and 1.50 g2 L-2, respectively. Experiments were performed where solutions were spiked with arsenic, bismuth and/or antimony, and the start of precipitation was determined based on changes in solution turbidity. For arsenic concentrations of 9-13 g L-1, the concentrations of Bi necessary for the beginning of BiAsO4 precipitation were higher for the industrial electrolyte (0.25-0.50 g L-1) than the synthetic electrolyte (0.05-0.10 g L-1) at each arsenic concentration examined. The results indicate that industrial electrolyte has a greater capacity than the synthetic electrolyte with respect to the precipitation of BiAsO4. In the synthetic electrolyte, precipitation occurs at 0.30 g L-1 of Sb(III) in the presence of 9 g L-1 of As(V) without the addition of Bi, and 0.20 g L-1 with the addition 0.15 g L-1 Bi. At 10-12 g L-1 of As(V), a concentration of 0.10 g L-1 of Sb(III) produced precipitation. In industrial electrolyte, the increase in Sb(V) from 0.10 g L-1 to 0.16 g L-1, significantly increased precipitation. The presence of As and Sb in the +3 and + 5 appears to influence the solubility of antimony. Furthermore, the industrial electrolyte has enhanced solubility of Sb(III) up to 0.40 g L-1 before precipitation was detected

Arsenic exposure, profiles of urinary arsenic species, and polymorphism effects of glutathione-s-transferase and metallothioneins

© 2018 Elsevier Ltd This study assessed the effects of polymorphic variants of gutathione-S-transferase and metallothioneins on profiles of urinary arsenic species. Drinking groundwater from Margarita and San Fernando, Colombia were analyzed and the lifetime average daily dose (LADD) of arsenic was determined. Specific surveys were applied to collect demographic information and other exposure factors. In addition, GSTT1-null, GSTM1-null, GSTP1-rs1695 and MT-2A-rs28366003 genetic polymorphisms were evaluated, either by direct PCR or PCR-RFLP. Urinary speciated arsenic concentrations were determined by HPLC-HG-AFS for species such as AsIII, AsV, monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), and total urinary As (TuAs). Primary methylation index (PMI) and secondary methylation index (SMI) were also calculated as indicators of the metabolic capacity. Polymorphisms effects were tested using multivariate analysis, adjusted by potential confounders. The As concentrations in groun