Pretraživanje
Prikaz rezultata 31-40 od 65
Models of regression of the scope of sown areas and purchase prices of oil crops in Serbia
(Routledge Journals, Taylor & Francis Ltd, Abingdon, 2012)
This paper examines the interdependency between the movements of the level of market (purchase) prices and sowed areas under sunflower, soya, and oilseed rape, i.e. between the relative prices of these oil crops and ...
A note on representation of lattices by weak congruences
(Springer Basel Ag, Basel, 2012)
A weak congruence is a symmetric, transitive, and compatible relation. An element u of an algebraic lattice L is Delta-suitable if there is an isomorphism. from L to the lattice of weak congruences of an algebra such that ...
Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2012)
The effects of Zn-doping on the dielectric behavior and electrical properties of bulk alpha-Fe2O3 have been studied. X-ray diffraction analysis revealed the presence of two phases in all samples: hematite and spinel ZnFe2O4, ...
The identification of drought tolerant maize accessions by two-step cluster analysis
(Natl Agricultural Research & Development Inst, Fundulea, 2012)
Water deficit is one of the main limiting factors leading to maize yield reduction in the temperate zone. Global environmental changes additionally put breeding for drought tolerance in the focus of research programmes. ...
The effects of drought on the expression of TAO1, NCED and EIL1 genes and ABA content in tomato wild-type and flacca mutant
(Srpsko biološko društvo, Beograd, i dr., 2012)
The effects of drought (partial root-zone drying-PRD and regulated deficit irrigation-RDI) and full irrigation (FI) on the expression of ABA biosynthetic genes (TAO1 and NCED), EIL1 gene and ABA content in the leaves of ...
Changes in white blood pictures and some biochemical parameters of dairy cows in peripartum period and early lactation
(Croatian Dairy Union, 2012)
The objective of this research was to determine the changes in the number of cells of white blood line and some biochemical parameters: concentration of glucose, concentration of non-esterified fatty acids (NEFA), activity ...
Phenotypic Diversity of Apple (Malus sp.) Germplasm in South Serbia
(Inst Tecnologia Parana, Curitiba-Parana, 2012)
To determine the overall degree of polymorphism, detect similarities among the accessions and collect highly valued genotypes of native apples, 21 characters of 18 autochthonous apple cultivars were studied for three years. ...
Application of USLE, GIS, and Remote Sensing in the Assessment of Soil Erosion Rates in Southeastern Serbia
(Polish Journal of Environmental Studies, 2012)
The assessment of soil erosion rate and its spatial distribution in the hilly-mountainous Nisava River basin was conducted by Universal Soil Loss Equation (USLE) model through a GIS-based approach. A Landsat 7 Enhanced ...
Biodegradation of methyl-tert-butyl ether by Kocuria sp. / Biodegradacija metil tercijarnog butil etra pomoću Kocuria sp.
(Savez hemijskih inženjera, Beograd, 2012)
Methyl-tert-butyl ether (MTBE) has been used to replace the toxic compounds from gasoline and to reduce emission of air pollutants. Due to its intensive use, MTBE has become one of the most important environment pollutants. ...
The possibility of using macrophytes in lake Palić sediment remediation
(Srpsko biološko društvo, Beograd, i dr., 2012)
Lake Palić is a typical, shallow Pannonian plain lake, with thick sediment layers and high content of phosphorus and nitrogen. The thick layers are the result of accelerated eutrophication, and cause biodiversity loss and ...