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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 54 for “"Cadmium ( Cd )"”.
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Respon biologis tumbuhan eceng gondok (Eichhornia crassipes Solms) sebagai biomonitoring pencemaran logam berat Cadmium (Cd) dan Plumbum (Pb) pada sungai pembuangan lumpur Lapindo, Kecamatan Porong, Kabupaten Sidoarjo
… crassipes) akibat pencemaran logam berat (Cd dan Pb) dalam lumpur Lapindo. Penelitian ini mengambil sampel air sungai Porong, sungai Balungtani dan kontrol sebagai pembanding yang masing-masing diambil 3 stasiun pengambilan sampel, dan pada setiap stasiun diambil 5 sampel tumbuhan eceng …
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The effect of cadmium on some enzymes in the developing chick embryo
Cadmium (Gr. kadmeia - earth), a soft bluewhite metal, is a member of ~roup· II b of the Periodic Table, and lies between zinc and mercury. Cadmium (Cd) possesses the following physical constants: Atomic number 48; atomic weight 112.4; valency 2 and specific gravity a.?. The metal melts at 321°C …
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An integrated decision support tool for more sustainable management of biomass resources in agricultural regions
… depletion of mineral phosphorus resources and cadmium contamination in agricultural soil. Biomass can potentially be used as a renewable energy source and can also be returned to improve the nutrient and drainage structure of agricultural soils. Sustainable management of biomass and agriculture …
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Uji kadar logam berat kadmium (Cd) pada tumbuhan mangrove di Pantai Tambaan Kota Pasuruan
… memiliki daya racun tinggi seperti logam berat Cadmium. Salah satu alternatif untuk mengurangi pencemaran logam berat yang berbahaya dalam perairan adalah dengan melestarikan ekosistem mangrove, karena mangrove mempunyai potensi dalam menyerap logam berat yang ada di lingkungannya. Penelitian …
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Understanding the Influence of Zinc on Grain Cadmium Accumulation and Bioaccessibility in Rice
<p><strong>The effect of cadmium and zinc on mineral concentrations in three cultivars of rice</strong></p> <p>Interactions between the essential mineral zinc (Zn) and the toxic heavy metal cadmium (Cd) play an important role in regulating transport of both minerals to rice grains. Understanding …
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Heavy Metal Concentrations in Stream Sediments Adjacent to the Greenfield Sanitary Landfill, Dade County, Missouri
… was analyzed for silver (Ag), barium (Ba), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) using Inductively Coupled Plasma-Atomic Emission Spectrophotometry (ICP-AES) and a single nitric acid extraction. A t-test was used to compare each of the statistical …
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ΚΑΔΜΙΟ ΚΑΙ ΥΔΡΑΡΓΥΡΟΣ ΣΤΟ ΗΠΑΤΟΠΑΓΚΡΕΑΣ ΤΗΣ ΓΑΡΙΔΑΣ CALLIANASSA! TYRRHENA. ΒΙΟΣΥΣΣΩΡΕΥΣΗ ΚΑΙ ΕΠΙΔΡΑΣΕΙΣ ΣΕ ΔΙΑΛΥΤΕΣ ΠΡΩΤΕΙΝΕΣ, ΠΕΠΤΙΔΙΑ ΚΑΙ ΕΝΖΥΜΑ
… TO DIFFERENT CONCENTRATIONS OF THE HEAVY METALS CADMIUM (CD) AND MERCURY (HG) FOR VARIOUS TIME PERIODS. SINCE HEPOTOPANCREAS IS CONSIDERED AS THE MAJOR DETOXIFICATION ORGAN, EXTRACTS OF THIS TISSUE WERE MAINLY UTILISED IN THIS STUDY. THE EFFECT OF CADMIUM AND MERCURY ON GENERAL PROTEINS, GENERAL …
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Phytoremediation of Metal Contamination Using Salix (Willows)
… toxic threats to plants, animals, and humans. Cadmium (Cd) and lead (Pb) are metal contaminants often found in AMD. In my mine outwash water samples, cadmium and lead concentrations were 19 and 160 times greater than concentrations in control waterways, and 300 and 40 times greater than EPA …
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Interactions of cadmium, zinc, and phosphorus in marine Synechococcus : field uptake, physiological and proteomic studies
… were conducted investigating the interactions of cadmium (Cd), zinc (Zn), and phosphorus (P) in marine Synechococcus. Enriched stable isotope field uptake studies of 110Cd in the Costa Rica Upwelling dome, a Synechococcus feature, showed that uptake of Cd occurs in waters shallower than 40 m, …
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Investigating the Transformations of Arsenic and Toxic Metal(Loid)S Speciation and the Impact on Arsenic Bioaccessibility in Particulate Matter from Mine Tailings Sites Distributed in Different Climates
… of arsenic (As), lead (Pb), zinc (Zn), and cadmium (Cd) in sulfidic mine tailings collected from 11 abandoned sites across a broad climatic gradient in the Western United States, ranging from arid to humid environments. Tailings were sampled from surface to 2 m depth and characterized for …
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Cyclooxygenase-2 is Associated with Cadmium-induced ICAM-1 Expression in Brain Endothelial Cell
Exposure to cadmium (Cd) was reported to be related with the increased incidence of neurodegenerative diseases including stroke, though underlying mechanism is not clearly understood. In vivo studies showed that Cd accumulates out-side of blood brain barrier (BBB) and induces the leakage of BBB, …
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Interactions of cadmium, zinc, and phosphorus in marine Synechococcus : field uptake, physiological and proteomic studies
… were conducted investigating the interactions of cadmium (Cd), zinc (Zn), and phosphorus (P) in marine Synechococcus. Enriched stable isotope field uptake studies of ¹¹⁰CD in the Costa Rica Upwelling dome, a Synechococcus feature, showed that uptake of Cd occurs in waters shallower than 40 m, …
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Sediment toxicity and bioaccumulation of toxicants in the zebra mussel, Dreissena polymorpha, at Times Beach, Buffalo, New York
… at the Times Beach Confined Disposal Facility (CDF), located in Buffalo, New York. Concentrations of the selected contaminants (polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and the following metals: arsenic (As), chromium (Cr), barium (Ba), mercury (Hg), cadmium …
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Assessing the potential for Zn limitation of marine primary production: proteomic characterization of the low Zn stress response in marine diatoms
… Lastly, I explored the relative demand of Zn and cadmium (Cd) within the Southern Ocean community using stable 67Zn and 110Cd tracers, documenting a high demand for both metals during the austral 2017-2018 summer season and investigating the cycling of these elements within this important region. …
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Assessing the potential for zinc limitation of marine primary production: proteomic characterization of the low zinc stress response in marine diatoms
… Lastly, I explored the relative demand of Zn and cadmium (Cd) within the Southern Ocean community using stable 67Zn and 110Cd tracers, documenting a high demand for both metals during the austral 2017-2018 summer season and investigating the cycling of these elements within this important region. …
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Behavioural ecotoxicology of the brown shrimp, Crangon crangon : changing colour in polluted environments
… been treated with non-lethal concentrations of cadmium (Cd) plus two different antibiotics [Gentamicin (Gt) and Furazolidone (FZN)] and arsenic (As). A great interindividual and interpopulation variability in response to the use of heavy metals and antibiotics was found. Therefore, colour change …
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An Investigation of Heavy Metal Pollution Impact on Drinking Water Quality in the Birim River Sub-Basin of Ghana
… period of 6 weeks. Four heavy metals, Lead (Pb), cadmium (Cd), Chromium (Cr), and Arsenic (As) in water were investigated from the Birim River sub-basin in the Eastern Region of Ghana. The water samples were analyzed using a Shimadzu AA- 7000 Atomic Absorption Spectrophotometer with deuterium …
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Chemical speciation and spatial distribution of heavy metals and their adsorption onto sediments of the Berg River, Western Cape, South Africa
… to measure the mobility and bioavailability of cadmium (Cd), lead (Pb), arsenic (As), chromium (Cr), nickel (Ni), cobalt (Co), iron (Fe), copper (Cu), zinc (Zn) and manganese (Mn). The metals Cd and Zn were found to be the most mobile and bioavailable. The study also examined the vertical …
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Investigation into three potential modifying factors in larval fathead minnow (Pimephales promelas) growth and survival
… stress were investigated. Using four-day acute cadmium toxicity tests and seven-day subchronic toxicity tests, differences in the responses of larvae based on the age of the larvae, their exposure to methylene blue, and changes in environmental pH were determined. The age of larvae chosen for …
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An assessment of heavy metal contamination of groundwater in George compound of Lusaka
… determine the concentration of heavy metals (cadmium, chromium, copper, iron and lead) in groundwater of the sampled wells in George Compound; (iii) examine the extent to which industries in close proximity to George Compound contributed to heavy metal contamination; (iv) find out local …
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