[PDF] Top 20 Cultura visual: una alternativa didáctica para la educación artística

... confirming the absorption of this metal after ip administration. Besides, the present study showed that different stages of ovarian follicular maturation are sensitive to CrVI as evident from the reduction in their ... See full document

... Cr(VI) is a widespread environmental contaminant and a known human carcinogen. Biosorption is a very common method to remove toxic Cr(VI) from industrial waste water. In biosorption Cr(VI) is re- duced to less toxic ... See full document

... Furthermore, as the mandarin shell contains vitamin C and some carbohydrates, we found that vitamin C and cystine quickly reduce Cr (VI) to Cr (III), and could be very important part in the metal reduction, confirming ... See full document

... the effects of some electrolytes common to a biological systems are stud- ied to establish the proposed reaction mechanism ...and hexavalent chromium and second order dependency on hydrogen ... See full document

... of chromium ions from aqueous solution. The effects of some parameters such as, contact time, solution pH, adsorbent dose and initial chromium ions concentrations on the performance of the adsorbent ... See full document

... Further studies are necessary to extend our understanding of the effects of coexisting ions on the Cr(VI) reducing activity of the biomass reported in this study. Cr(VI) re- ducing capability has been described in ... See full document

... inhibitory effects from other components that may be present along with Chromium, since viable indigenous bacterial isolates will have developed some degree of resistance to these ...of hexavalent ... See full document

... toxic effects have been reported for in vivo studies of Cr(III), it can react with DNA and protein molecules on entering into the cell and make stable bonds because of its brutal reactivity with oxygen, nitrogen ... See full document

... Adverse effects of the hexavalent form on the skin may include ulcerations, dermatitis, and allergic skin reactions ...of hexavalent chromium compounds can result in perforation of the mucous ... See full document

... the effects of potassium chroma- te on various cell types and models, we must be aware of the fact that different cells may respond to it in different ...some chromium compounds may provoke in different ... See full document

... Hexavalent chromium is very dangerous for the human, especially for those who work in steel and textile industry and it is more ...of chromium has various effects on the human ...Typically, ... See full document

... cially chromium, have increased considerably as a result of inputs from human production and consumption ac- ...adverse effects to aquatic or- ganisms and contribute to the degradation of ecosystem ... See full document

... lent chromium, due to its toxic effects. The hexavalent chromium is considered an undesirable component of cement because of its potential health ... See full document

... Studies of pregnancies of exposed women cannot ignore the contribution of exposed mates. One of several articles reporting male mediated spontaneous abortion examined couples with metal worker husbands, planning their ... See full document

... Q™ deionized water. The 200 ml of prepared solution was added to 100 g of Chelsea soil in a container and thoroughly mixed. The chromium contaminated soil slurry was allowed to sun dry. Homogenous ... See full document

... a chromium-free composite passivation film, silane passivation film, hexavalent chromium passivation film, and galvanized bare plate were tested using a CHI760E electrochemical workstation (Shanghai ... See full document

... of hexavalent chromium was investigated using five strains of Gram-negative bacteria; Pseudomonas aeruginosa, Enterobacter cloacae, Escherichia coli, Proteus mirabilis and Methylococcus capsulatus ...reduce ... See full document

... of chromium (VI) anions ...total chromium in different environments, but also to determine chromium in its different oxidation states [8, 9, and ... See full document

... The influence of a male on the sex ratio his mate produces is proposed to be through the number of spermatozoa he transfers to her in his ejaculate. Ejaculates are not just spermatozoa; they consist of other factors that ... See full document

... The instruments used for data collection and characterization of adsorbent were (i) pH meter (WTW, 3310) for the solutions pH adjustment, (ii) X-ray Fluorescence (Rigaku, ZSX Mini II) for the analysis of the minerals ... See full document