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Copyright of Lilloa is the property of Fundacion Miguel Lillo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Anales de Geografía de la Universidad Complutense is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Polyphonía: Revista de Educación Inclusiva is the property of Centro de Estudios Latinoamericanos de Educacion Inclusiva (CELEI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bosque (03048799) is the property of Facultad de Ciencias Forestales, Universidad Austral de Chile and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of BIOAGRO is the property of Revista BIOAGRO and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents a study on the effects of some variables on the adsorption process of heavy metal ions in polluted wastewaters. The effects of pH, ion concentration, biomass concentration and pre-treatment of the biomass on the biosorption process of Pb2+, Cd2+ y Cr3+ in artificial solutions using non-living Saccharomyces cerevisiae were evaluated. It was observed that pH, biomass concentration and biomass pretreatment had a significant effect on the biosorption of Pb2+. For the adsorption of Cr3+ the only important factors were pH and concentration biomass, while for Cd2+ biosorption the effects of biomass concentration, pH and the presence of co-ions in the solution were significant. [ABSTRACT FROM AUTHOR]

The effect on mesofauna of the soil in rehabilitated areas formerly dedicated to mining in the Moa deposits was evaluated using cassowary (Casuarina equisetifolia Forst.) and cashew (Anacardium occidentale L). Results were compared with natural forest areas. Soil mesofauna was evaluated as a biological indicator. Field samples were taken during October/November in deep purple ferralitic soils with low fertility and good drainage. An average of five soil samples were taken in the first 10 cm of depth, divided between depths of 0-5cm and 5-10cm. The extraction of soil mesofauna was conducted using "Tullgren" funnels over 7-day periods. The greatest density values of the total mesofauna and of the decomposer groups (Oribátidos y Colémbolos) were observed in the natural forest areas. The area rehabilitated with cassowary presented intermediate intensity values while minimum values corresponded with cashew reforested areas, where indicator groups of infertility and instability (Astigmados y Prostigmados) stood out the most. In spite of 4 years of rehabilitation in these areas, the damage caused by mining activity has not been reverted given the values of indicator groups for instability and infertility, or the absence of values of indicator groups for soil stability and fertility. [ABSTRACT FROM AUTHOR]