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trace metals

Picoeukaryote community ecology and functional response to trace metals disturbances in coastal environments

Picoeukaryote community ecology and functional response to trace metals disturbances in coastal environments

... of trace metals in coastal environments has increased due to anthropogenic activities, including the use of antifouling paints of ships, fertilizers for agriculture, and intensive mining (Kennish, 2002; ...

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ISOPODS OF THE GENUS LIGIA AS POTENTIAL BIOMONITORS OF TRACE METALS FROM THE GULF OF CALIFORNIA AND PACIFIC COAST OF THE BAJA CALIFORNIA PENINSULA

ISOPODS OF THE GENUS LIGIA AS POTENTIAL BIOMONITORS OF TRACE METALS FROM THE GULF OF CALIFORNIA AND PACIFIC COAST OF THE BAJA CALIFORNIA PENINSULA

... of trace elements in the supralittoral po- pulations of Ligia isopods in the Gulf of California and the Paci fi c side of the Baja California peninsula re fl ect local anthropogenic and natural ...of trace ...

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COMPARATIVE BIOACCUMULATION OF TRACE METALS USING SIX FILTER FEEDER ORGANISMS IN A COASTAL LAGOON ECOSYSTEM (OF THE CENTRAL EAST GULF OF CALIFORNIA)

COMPARATIVE BIOACCUMULATION OF TRACE METALS USING SIX FILTER FEEDER ORGANISMS IN A COASTAL LAGOON ECOSYSTEM (OF THE CENTRAL EAST GULF OF CALIFORNIA)

... of trace metals; interspecific differences in concentrations suggest that these organ- isms display a varying capacities for the net accumulation of metals, ranging from weak net accumulators for ...

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A Geographic Information System (GIS) analysis for trace metals assessment of sediments in the Gulf
     of Paria, Trinidad

A Geographic Information System (GIS) analysis for trace metals assessment of sediments in the Gulf of Paria, Trinidad

... for trace metal pollutants from overlying waters, therefore determination of their content is critical in evaluating and detecting sources of marine ...for trace metals in coastal sediments of the ...

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Trace metals in bivalves and seagrass collected from Venezuelan coastal sites

Trace metals in bivalves and seagrass collected from Venezuelan coastal sites

... Sampling and sample pretreatment: The sampling was carried out between January and February during 2005 and 2006. Samples of Tivela mactroidea and Thalassia testudinum were colleted by hand from the marine sedi- ment, ...

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Saharan dust: a carrier of persistent organic pollutants, metals and microbes to the Caribbean?

Saharan dust: a carrier of persistent organic pollutants, metals and microbes to the Caribbean?

... (POPs), trace metals, and viable microorganisms in the atmosphere in dust source areas of West Africa, and in dust episodes at downwind sites in the eastern Atlantic (Cape Verde) and the Caribbean (USVI and ...

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Internal features, mineralogy and geochemistry of ferromanganese nodules from the Gulf of Cadiz: the role of the Mediterranean Outflow Water undercurrent

Internal features, mineralogy and geochemistry of ferromanganese nodules from the Gulf of Cadiz: the role of the Mediterranean Outflow Water undercurrent

... The studied nodules are characterized by Fe oxyhydroxides (goethite type) predominating over Mn oxides unlike those in the deep-sea nodules where Mn oxides are dominant (e.g., Hein et al., 1997; Baturin et al., 2002). ...

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Utilizing block size variability to enhance instruction fetch rate

Utilizing block size variability to enhance instruction fetch rate

... VSBC storage module is mainly made up of two cache structures: BPC and BBC. The full address is used for BPC lookup, whereas BBC needs tag and index fields for lookup. A single line from BPC is shown in Figure 2. The BPC ...

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EVAPORATION OF LOW VAPOR PRESSURE METALS USING A CONVENTIONAL MINI ELECTRON BEAM EVAPORATOR

EVAPORATION OF LOW VAPOR PRESSURE METALS USING A CONVENTIONAL MINI ELECTRON BEAM EVAPORATOR

... evaporate metals of low vapor pressure (high melting ...[7] Metals of low vapor pressure, such as niobium, ruthenium, and titanium, need to be heated at high temperatures to obtain a reasonable evaporation ...

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PLANIFICACIÓN DE LA ASIGNATURA Y CÓDIGOS DE REFERENCIA PARA EL DISEÑO DE PROGRAMACIONES DIDÁCTICAS

PLANIFICACIÓN DE LA ASIGNATURA Y CÓDIGOS DE REFERENCIA PARA EL DISEÑO DE PROGRAMACIONES DIDÁCTICAS

... of metals with oxygen, water and acids; draw on qualitative evidence from several sources to place metals in order of reactivity; use qualitative and quantitative evidence to decide when a displacement ...

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The problem of entanglement of quantum states

The problem of entanglement of quantum states

... formly bounded). It is this normality condition which guarantees that the states are in one-to-one correspondence with positive trace class operators d of unit trace (density operators) via the formula B ( ...

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Performance of mortars produced with the incorporation of sugar cane bagasse ash Rendimiento de morteros producidos con la incorporación de ceniza de bagazo de caña de azúcar

Performance of mortars produced with the incorporation of sugar cane bagasse ash Rendimiento de morteros producidos con la incorporación de ceniza de bagazo de caña de azúcar

... The test to determine capillary absorption was performed by NBR 9779 (ABNT, 2012) on five cylindrical specimens (50 x 100 mm) per trace, which followed the molding according to NBR 13279 (ABNT, 2005). The ...

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Microbial recovery of metallic nanoparticles from industrial wastes and their environmental applications

Microbial recovery of metallic nanoparticles from industrial wastes and their environmental applications

... precious metals and the production of metallic NPs from waste streams containing ionic metals to give a vision of the opportunities to implement microbial synthesis as a treatment-recovery ...

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Trace et archive, image et art Jacques Derrida

Trace et archive, image et art Jacques Derrida

... philosophique débouchera, je crois, sur une solitude. La fusion nous permettra de dire : nous savons, mais ce n’est pas ce que je voudrais, ce que nous voudrions ce soir. Alors que la solitude nous poussera à dire : je ...

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A compact trace theorem for domains with external
            cusps

A compact trace theorem for domains with external cusps

... Key tools in harmonic analysis and numerical application are the Rellich’s the- orem and the compact trace theorem. This paper deals with the compact trace theorem in domains Ω ⊂ R 3 with external cusps. We ...

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Pediatric trace elements  Clinical updates

Pediatric trace elements Clinical updates

... The preparation of parenteral nutrition is more a complex formula due to the large number of components it requires: amino acids, carbohydrates, lipids, electrolytes, vitamins and trace elements. There is the risk ...

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Full PDF

Full PDF

... heavy metals have no beneficial functions to the body and can be highly ...Heavy metals belong to the group of elements whose hydro-geochemistry cycles have been greatly accelerated by ...most metals ...

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Revista Ingeniería Investigación y Tecnología | Facultad de Ingeniería UNAM

Revista Ingeniería Investigación y Tecnología | Facultad de Ingeniería UNAM

... total metals, namely Fe/Al with Mn/Al, Ni/Al with V/Al, and Ni/Al with V/Al were found to be statistically significant (p < ...total metals reveal four conglomer- ates formed by the Fe/Al, Mn/Al, Ni/Al ...

12

New Perspectives on Oxidized Genome Damage and Repair Inhibition by Pro-Oxidant Metals in Neurological Diseases

New Perspectives on Oxidized Genome Damage and Repair Inhibition by Pro-Oxidant Metals in Neurological Diseases

... other metals, the accumulation of genomic damage in the brain, how the interplay among these factors triggers neuronal apoptosis is still ...of metals as the key mediators of AD pathology has been ...

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