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Metal(loid)s

THE CONTENTOFHEAVY METALS IN PASTURES FROM MIDDLE SPIŠ AREA

THE CONTENTOFHEAVY METALS IN PASTURES FROM MIDDLE SPIŠ AREA

... Heavy metals are ubiquitous part of the environment as a result of mutual natural and anthropogenic activities causing increased exposure of human populations to their effects through various channels (Wilson - ...

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Electrical Conductivity of Metals: A New Look at this Subject

Electrical Conductivity of Metals: A New Look at this Subject

... Various parameters tied to the electrical conductivity of typical metals are estimated and are expressed in terms of universal constants. It happens that they are close to those found in metallic copper at room ...

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LIMING EFFECT ON SOIL HEAVY METALS AVAILABILITY

LIMING EFFECT ON SOIL HEAVY METALS AVAILABILITY

... heavy metals availability is impacted by soil ...heavy metals toxicity is one of the main forms of abiotic stre- ss that may cause harmful effects to plant and animal health (Lisjak et ...heavy ...

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HEAVY METALS IN VINEYARDS AND ORCHARD SOILS

HEAVY METALS IN VINEYARDS AND ORCHARD SOILS

... The main source of Cu and Zn in grapevine (Vitis sp.), apple (Malus domestica) and other fruit tree orchards, are fungicides used for control of diseases, which can cause the accumulation and changes in the distribution ...

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Essential and non-essential trace metals in scalp hair of men chronically exposed to volcanogenic metals in the Azores, Portugal

Essential and non-essential trace metals in scalp hair of men chronically exposed to volcanogenic metals in the Azores, Portugal

... trace metals on human health have been discussed in the last decades, especially with respect to toxic metals originating in anthropogenic activities, but little has been said concerning natural pollution ...

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HEAVY METALS IN TRIBUTARIES OF PAMPULHA RESERVOIR, MINAS GERAIS

HEAVY METALS IN TRIBUTARIES OF PAMPULHA RESERVOIR, MINAS GERAIS

... The sampling points considered critical for metal analysis were the Sarandi and Ressaca streams. Within the industrial complex of Contagem, point 2 (Sarandi) receives a great part of the effluents from iron and steel ...

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Heavy metals in vegetables and potential risk for human health

Heavy metals in vegetables and potential risk for human health

... heavy metals is one of the main ways in which these elements enter the human ...heavy metals are deposited in bone and fat tissues, overlapping noble ...heavy metals can cause an array of ...heavy ...

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Microplastics as vectors of heavy metals for fish

Microplastics as vectors of heavy metals for fish

... heavy metals significantly affected four out of the five biomarkers tested (Table ...heavy metals in any tissue. The microplastics with heavy metals treatment lead to a significant increase in LPO in ...

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Heavy metals in equine biological components

Heavy metals in equine biological components

... Serum, blood and hair components from equines may not be effective as indicators of environmental pollution with heavy metals. Industrialization and seasons have no effects on most part of heavy-metal contents ...

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Grain size fraction of heavy metals in soil and their relationship with land use

Grain size fraction of heavy metals in soil and their relationship with land use

... However, the highest GSF value was recorded for Cr in road-side lands and the lowest level for Pb in natural lands. For Pb, Cr and Ni the highest GSF value was recorded in 63-125µmfractions from road-side soils while ...

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Theory of storage and metals forward curves dynamics

Theory of storage and metals forward curves dynamics

... → Fama and French (1988) use LME Future prices over the period 1972 to 1983 to test five base metals (copper, aluminium, copper, lead, tin and zinc) and find that the variance of spot prices declines with high ...

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Heavy metals investigation in bovine tissues in Brazil

Heavy metals investigation in bovine tissues in Brazil

... During the seven years of study (2002-2008), only 11 out of 1017 tested samples violated the Brazilian law. This low percentage (%) confirms the efficiency of the National Control Program (PNCRC). However, even with low ...

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Interactions between plant hormones and heavy metals responses

Interactions between plant hormones and heavy metals responses

... heavy metals, some are essential for plant growth and development as micronutrients elements and play an important role in ...heavy metals negatively affect the morphology, physiology and biochemistry of ...

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Studies of the underpotential deposition of metals.

Studies of the underpotential deposition of metals.

... STUDIES OF THE UNDERPOTENTIAL DEPOSITION OF METALS. This work reviews recent studies of underpotential deposition (UPD) of several metals on Pt and Au substrates performed in the Grupo de Materiais ...

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Magnetic zeolites for removal of metals in water.

Magnetic zeolites for removal of metals in water.

... OF METALS IN WATER: In this work the adsorption features of zeolites (NaY, Beta, Mordenite and ZSM-5) have been combined with the magnetic properties of iron oxides in a composite to produce a magnetic ...

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Heavy Metals Concentrations in Groundwater Used for Irrigation

Heavy Metals Concentrations in Groundwater Used for Irrigation

... There is no comprehensive research concerning the status of water used in irri- gation of agricultural crops considering heavy metal pollution in Iran. On the base of our search on databases, there are a few studies ...

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Contamination of Potentially Trace Metals in Aqaba and Eshidiya Phosphogypsum in Jordan

Contamination of Potentially Trace Metals in Aqaba and Eshidiya Phosphogypsum in Jordan

... heavy metals in the phosphate used to manufacture ...heavy metals concentration in phosphogypsum and the problem of its usage in industry has prompted this ...heavy metals, Calculate the ...

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Surface Plasmon Waves on noble metals at Optical Wavelengths

Surface Plasmon Waves on noble metals at Optical Wavelengths

... Metals exhibit negative dielectric constants in the visible and infrared wavelength regions having frequencies in the terahertz region producing structures supporting such kind of confined propagation with their ...

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APPLICATION OF THE ANALYTICAL ECT METHOD TO BCC METALS

APPLICATION OF THE ANALYTICAL ECT METHOD TO BCC METALS

... For all the theoretical models whose results are presented in table 5, the high density (110) surface has the lowest energy in all cases, except Na and Li where Refs. [3, 5] predicts that  100   110 .So from surface ...

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Precious metals, a shiny hedge for investors?

Precious metals, a shiny hedge for investors?

... The existing literature that explores the use of gold for protecting investors' wealth is quite representative, but there are only a few analyses concerning the potential hedging role of other precious metals. The ...

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