Sediments in the Guadalete River estuary were studied to determine the bioavailability of five common metals (Cu, Zn, Cd, Pb and Ni) in order to evaluate the toxicity of the sediment.Total sediment dry weight concentrations of heavy metals, simultaneously extracted metals (SEM) and acid volatile sulfides (AVS) were analyzed.Interstitial water crite
The objective of flood frequency analysis (FFA) is to associate flood intensity with a probability of exceedance.Many methods are currently employed for this, ranging from statistical distribution fitting to simulation approaches.In many cases the site of interest is actually ungauged, and a regionalisation scheme has to be associated with the FFA
The need to orient the family on the development of the pre-school girl and boy skill in conversation and the inadequacies in the theoretical and methodological order to conceive the developing educational process, in the conditions of the home, are the motives that lead to the elaboration of a proposal for family orientation activities aimed at th
A pot study was conducted to investigate influences of salinity on sugarcane (Saccharum spp.) plant growth, leaf photosynthesis, and other physiological traits during tillering and stalk elongation.Treatments included two commercial sugarcane cultivars (Canal Point (CP) 96-1252 and CP 00-1101) and an Erianthus with five different soil salt concentr