Mostrando 1,121 - 1,140 Resultados de 10,862 Para Buscar '"Heavy Metal"', tiempo de consulta: 0.31s Limitar resultados
  1. 1121
    “…X-ray computed tomography (CT) contrast agents offer extremely valuable tools and techniques in diagnostics via contrast enhancements. Heavy metal-based nanoparticles (NPs) can provide high contrast in CT images due to the high density of heavy metal atoms with high X-ray attenuation coefficients that exceed that of iodine (I), which is currently used in hydrophilic organic CT contrast agents. …”
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  2. 1122
    “…We examined 9556 individuals aged 18 to 79 years who had information on spirometry testing and heavy metals and used multivariable logistic or linear regression to evaluate associations between serum levels of cadmium, lead, and mercury and PRISm and lung function in U.S. adults, which were conducted first in all participants, and then separately in never/former smokers and current smokers. …”
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  3. 1123
    “…The best immobilization of heavy metals was observed in the case of the precipitate resulting from the use of DMDTC as a precipitating agent. …”
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  4. 1124
    “…Such remarkable adsorption performance could be attributed to the strong trapping effect on heavy metal ions by the C–S bond of DTC-SDS. The liquid adsorbent was in full contact with heavy metal ions, which further enhanced the complexation of heavy metal ions. …”
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  5. 1125
    por Xu, Yaohui, Li, Yuting, Ding, Zhao
    Publicado 2023
    “…Following that, MSNPs were immobilized using a three–step grafting strategy, where 8-hloroacetyl–aminoquinoline (CAAQ) was employed as a metal ion affinity ligand for trapping specific heavy metal ions, and a macromolecular polymer (polyethylenimine (PEI)) was selected as a bridge between the surface hydroxyl group and CAAQ to fabricate a network of organic networks onto the MSNPs’ surface. …”
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  6. 1126
    “…Sediment cores, sampled every 5 cm, were analyzed for 14 heavy metals using inductively coupled plasma-mass spectrometry. …”
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  7. 1127
    por Abd-El-Haleem, Desouky
    Publicado 2023
    “…As a result, the investigation’s scope was expanded to include heavy metal removal.…”
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  8. 1128
  9. 1129
    “…The findings of this study highlight the potential of microorganisms derived from coastal marine environments as promising candidates for future applications in bioremediation of polluted environments contaminated with heavy metals.…”
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  10. 1130
    “…Numerous foodstuffs have been evaluated for their contributions to the recommended daily allowance both to guide for satisfactory intake and also to prevent over exposure. In the case of heavy metal ions, the focus is often on exposure to potentially toxic levels of ions such as lead and mercury. …”
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  11. 1131
    “…Correction to Naughton DP, Petroczi A: Heavy metal ions in wines: meta-analysis of target hazard quotients reveals health risks. …”
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  12. 1132
    “…BACKGROUND: Recombinant whole-cell sensors have already proven useful in the assessment of the bioavailability of environmental pollutants like heavy metals and organic compounds. In this work 19 recombinant bacterial strains representing various Gram-positive (Staphylococcus aureus and Bacillus subtilis) and Gram-negative (Escherichia coli, Pseudomonas fluorescens) bacteria were constructed to express the luminescence encoding genes luxCDABE (from Photorhabdus luminescens) as a response to bioavailable heavy metals ("lights-on" metal sensors containing metal-response elements, 13 strains) or in a constitutive manner ("lights-off" constructs, 6 strains). …”
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  13. 1133
    “…Taken together the Nigerian made syrup samples had higher concentrations of the studied heavy metals. It is feared that ingestion of these syrups may constitute a significant source of heavy metal exposure to the children and should therefore be considered a public health problem. …”
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  14. 1134
  15. 1135
    “…This study explored the spatial pattern of heavy metals in Beijing agricultural soils using Moran’s I statistic of spatial autocorrelation. …”
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  16. 1136
    “…It has been hypothesized that exposure to heavy metals may impair male reproduction. To measure the effect produced by low doses of heavy metals on semen parameters, it is necessary to clarify in which body fluids those measurements must be performed. …”
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  17. 1137
    “…The mechanisms of the mtETC involvement in the heavy-metal-induced mitochondrial membrane permeabilization and cell death are discussed.…”
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  18. 1138
    “…BACKGROUND: Chelation therapy involving organic chelators for treatment of heavy metal intoxication can cause cardiac arrest, kidney overload, mineral deficiency, and anemia. …”
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  19. 1139
    “…To determine the contents of heavy metal (Cu, Zn, As, Cr, Cd and Pb) in animal feeds and manures, 104 livestock feeds and 118 animal manure samples from farms of different herd size and located in northeast China were collected and their heavy metal concentrations were determined. …”
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  20. 1140
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