Претраживање
Приказ резултата 21-30 од 355
Vertical distribution of natural radionuclides in soil: Assessment of external exposure of population in cultivated and undisturbed areas
(Elsevier, Amsterdam, 2012)
In the present work, naturally occurring radionuclides U-238, Th-232 and K-40 were measured in soil samples from the cultivated and undisturbed areas in Rudovci, municipality of Lazarevac, Serbia. There were three profiles, ...
Ferroelectric nanocomposites of polyvinylidene fluoride/polymethyl methacrylate blend and BaTiO3 particles: Fabrication of beta-crystal polymorph rich matrix through mechanical activation of the filler
(Amer Inst Physics, Melville, 2014)
Nanocomposites of polyvinylidene fluoride/polymethyl methacrylate (PVDF/PMMA) blend and mechanically activated barium titanate (BaTiO3) particles were prepared by melt mixing. Modification of filler by means of mechanical ...
Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization
(Academic Press Ltd- Elsevier Science Ltd, London, 2017)
The redox-induced (im)mobilization of nickel (Ni) and lead (Pb) under pre-definite redox conditions and their binding forms were studied in a periodically flooded, slightly acidic arable soil enriched with serpentine ...
Effects of trifluralin on carp: Biochemical and histological evaluation
(Academic Press Inc Elsevier Science, San Diego, 1999)
Acute and subacute toxicity of the herbicide trifluralin on fish was investigated in laboratory toxicity tests with carp, Median lethal concentrations were determined in acute tests. The 96-h LC50 value was 0.045 (0.036-0.051) ...
Capillary zone electrophoresis analysis of gliadin proteins from Chinese and Yugoslav winter wheat cultivars
(Kluwer Academic Publ, Dordrecht, 1999)
Gliadin proteins extracted from fifteen Chinese and Yugoslav winter wheat cultivars were fractionated using a new separation technique - Capillary Zone Electrophoresis (CZE). Different CZE conditions were defined to optimize ...
Soil type classification and estimation of soil properties using support vector machines
(Elsevier, Amsterdam, 2010)
Quantitative techniques for prediction and classification in soil survey are developing rapidly. The paper introduces application of Support Vector Machines in the estimate of values of soil properties and soil type ...
Boron uptake by the root cortex symplast of tomato and pea plants: evidence for low-boron-induced active transport
(Csiro Publishing, Clayton, 2007)
The objective of this research was to test the hypothesis of the existence of an active boron ( B) uptake into the cortical cells induced by low B supply. The uptake of B was characterised in two tomato ( Lycopersicon ...
Deficit irrigation based on drought tolerance and root signalling in potatoes and tomatoes
(Elsevier, Amsterdam, 2010)
Agriculture is a big consumer of fresh water in competition with other sectors of the society. Within the EU-project SAFIR new water-saving irrigation strategies were developed based on pot, semi-field and field experiments ...
Composition and stability of soil aggregates in Fluvisols under forest, meadows, and 100 years of conventional tillage
(Wiley-V C H Verlag Gmbh, Weinheim, 2010)
Conversion of meadow and forest ecosystems to agricultural land generally leads to changes in soil structure. This comparative study presents the composition and stability of structural aggregates in humus horizons (0-30 ...
Liver, gills, and skin histopathology and heavy metal content of the Danube sterlet (acipenser ruthenus linnaeus, 1758)
(Setac Press, Pensacola, 2010)
The sterlet (Acipenser ruthenus L.) is a bottom-feeding fish species with a direct exposure to contaminants from water and sediments. Although heavy metal pollution is believed to be one of the main threats to the sterlet ...