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Search Results: 1 - 10 of 12316 matches for " Silvia Mo?ovská "
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Hop pellets as an interesting source of antioxidant active compounds
Andrea Holubková,Silvia Moovská,Barbora Baloghová,Ernest ?turdík
Potravinarstvo : Scientific Journal for Food Industry , 2013, DOI: 10.5219/270
Abstract: Hop is a plant used by humankind for thousands of years. This plant is one of the main and indispensable raw materials for the beer production. It is used for various dishes preparation in the cuisine. Hop is also used to inhibit bacterial contamination. The hop extracts are used for its sedative, antiseptic and antioxidant properties in medicine, as a part of many phytopharmaceuticals. The present paper have focused on the extraction of polyphenolic compounds from 4 samples of hop pellets varieties of Aurora, Saaz, Lublin and Saphir, on the analyzing of bioactive substances (polyphenolics and flavonoids) in prepared extracts and on the determination of antioxidant activity. The highest content of polyphenolic substances was determined in the sample Lublin (153.06 mg gallic acid (GAE)/g) and Saaz (151.87 mg GAE/g). The amount of flavonoids in the samples was descending order Saaz > Saphir > Aurora > Lublin. Hops, as plant, is known by high content of antioxidant active substances. Antioxidant activity was determined using three independent spectrofotometric methods, radical scavenging assays using 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and ferric reducing antioxidant power (FRAP). The sample Aurora showed the highest ability to scavenge of ABTS radical cation. Antioxidant activity continued to decline in a r
TRADITIONAL AND NEW METHODS OF EDUCATION IN LIFELONG LEARNING / Tradi né a nové metódy vzdelávania v celo ivotnom vzdelávaní
Han?ovská Erika
Technológia vzdelávania , 2009,
Abstract: In this article, I characterize lifelong learning, which is an important assumption of permanent employment. Life - long learning is one of the conditions of professional success. The increase of the inhabitant's education level is considered as the main one priority not only in Slovakia, but also in the whole European Union. Lifelong, individual process serves for personality development.V príspevku charakterizujem celo ivotné vzdelávanie, ktoré predstavuje nutny predpoklad trvalej zamestnanosti. Celo ivotné vzdelávanie ako jedna z podmienok profesnej úspe nosti. Zvy ovanie vzdelanosti obyvate ov pova uje za svoju prioritu nielen Slovensko, ale aj celá Európska únia. Celo ivotny, individuálny proces slú i k rozvoju osobnosti.
Měkky i zru ené Státní p írodní rezervace Loucké rybníky (Slezsko, eská republika) Molluscs of the abolished reserve of the Loucké Rybníky ponds (Silesia, Czech Republic)
Kamila Ka?ovská,Ji?í Kupka
Malacologica Bohemoslovaca , 2011,
Abstract: The Loucké Rybníky ponds State Nature Reserve was established in 1954 and due to negative effects of mining activities it was abolished in 1979. This article presents results of malacological survey in the Loucké Rybníky ponds (Karviná-Louky, Czech Republic) conducted in 2006 and 2007. The samples were collected at seven locations which match with sites sampled in 1954 and 1978; the location of sites were detected based on original schematic maps showing their position. The research was focused on aquatic species, terrestrial mollusc were collected only marginally. In 2006 and 2007, 38 mollusc species were found (35 gastropods and 3 bivalves), which include 17 species of aquatic molluscs and 21 terrestrial. Based on comparison with the data collected in 1954 and 1978 we conclude that the total destruction of aquatic habitats was irreversible and lead to changes in the species composition. Several rare and endangered species have extinct at this site and the total species richness of aquatic species decided from 29 to 17.
Nuclear Magnetic Resonance Spectral Function and Moments for Proton Pairs in Powdered Paramagnetic Substances MnSO4·H2O and NiSO4·H2O
Jel?ovská, K.,Pandula, B.
Metalurgija , 2006,
Abstract: The NMR spectrum is determined by interaction of resonating nuclei between the particles of the substance. These interactions depend on the spatial arrangement of the particles and their motion. Parameters characterizing interactions between the paramagnetic ions Me2+ (Me = Mn and Ni) and the protons of crystalline water in powdered MnSO4·1H2O and NiSO4·1H2O were derived from the temperature dependences on the second moment of the NMR spectra. The parameters characterizing the local magnetic field acting on the proton pairs were calculated and compared with those obtaind from the analysis of the shape of the NMR spectrum.
Journal of Central European Agriculture , 2002,
Abstract: In laboratory hydroponic experiments with spring barley genotypes the juvenile plants with 5 leaves were tested for their physiological responses to osmotic stress evoked by blocking the water uptake in roots by polyethylenglycol (PEG-6000) and to exogenous abscisic acid (ABA) applied in the nutrient solution which inhibits the stomata opening. Results from the measurements of leaf diffusion resistance, relative water content, transpiration and leaf elongation rates show dominant role of chemical signalization drought from root environment and of stomata in the regulation of water loss as well as sensitiveness of leaf elongation to lowered water availability. Maintenance of water content and turgor in the leaf tissues resulted from expression of morphological and physiological mechanisms of resistance and tolerance to drought different from that in mature plants which might be useful in the screening genotypes with different level of drought tolerance.
Utilisation of chemically treated coal
Machajová Zlatica,èurillová Dana,Be?ovská Mária
Acta Montanistica Slovaca , 2002,
Abstract: The numerous application of coal with high content of humic substances are known. They are used in many branches of industry. The complex study of the composition of coal from upper Nitra mines has directed research to its application in the field of ecology and agriculture. The effective sorption layers of this coal and their humic acids can to trap a broad spectrum of toxic harmful substances present in industrial wastes, particularly heavy metals. A major source of humic acids is coal - the most abundant and predominant product of plant residue coalification. All ranks of coal containt humic acids but lignite from Nováky deposit represents the most easily available and concentrated form of humic acids. Deep oxidation of coal by HNO3 oxidation - degradation has been performed to produce water-soluble-organic acids. The possibilities of utilisation of oxidised coal and humic acids to remove heavy metals from waste waters was studied. The residual concentrations of the investigated metals in the aqueous phase were determined by AAs. From the results follows that the samples of oxidised coal and theirs humic acids can be used for the heavy metal removal from metal solutions and the real acid mine water.Oxidised coal with a high content of humic acids and nitrogen is used in agriculture a fertilizer. Humic acids are active component in coal and help to utilize almost quantitatively nitrogen in soil. The humic substances block and stabiliz toxic metal residues already present in soil.
Study of Paramagnetic Monohydrates MeSO4.1H2O (Me = Mn2+, Co2+, Fe2+, Ni2+, Cu2+ )
Jel?ovská Kamila,Boldi?árová Eva
Acta Montanistica Slovaca , 2000,
Abstract: Nuclear magnetic resonance (NMR) of protons of crystrallization water in isomorphous paramagnetic monohydrates MeSO4.1H2O with Me = Mn2+ , Co2+ , Fe2+ , Ni2+ , Cu2+ is studied in the present paper. Several physically important parameters characterizing the studied substances were derived from the NMR spectra. In this paper we analysed the dependences of the NMR second moment M2 on the magnitude of the external magnetic field induction Br and the temperature. The proton NMR spectra in paramagnetic hydrates have an asymmetric form caused by the anisotropy of the local magnetic field acting on resonating nuclei and their second moments, M2, depend linearly on the square of the external magnetic field Br. The parameters M20 (the part of the second moment M2 which corresponds to the nuclear dipole-dipole interactions) and á which characterize nuclear dipole-dipole interactions of protons and paramagnetic ions, respectively, are derived from experimentally obtained dependences of M2 vs Br2. The measurements were performed at the room temperature. Calculations were realized using the approximation where two nearest neighbour ions Me2+ to each water molecule are considered. The temperature dependence of the second moment, which was realised in the temperature range 123-313 K, was more informative than the field one. Besides the individual dependences M2(T) measured at fr1 and fr2 we analysed the temperature dependence of the difference M2(T). Beside the second moment M20 the Curie-Weiss constant è and the magnetic moment μi of paramagnetic ions were determined from the temperature dependences. The parameters è and M20 were determined directly from the experimental data. Some knowledge on the crystalline structure for the studied substance was required for the calculation of the magnetic moment μi. By means of the classification of substances according to the Curie-Weiss parameter, the negative value of the temperature parameter è for all studied monohydrates shows that the studied paramagnetic monohydrates MeSO4.1H2O (Me = Mn2+, Co2+, Fe2+, Ni2+, Cu2+) should be antiferromagnetic at the temperatures T< /è/
Mária Koreňovská,Milan Suhaj
Potravinarstvo : Scientific Journal for Food Industry , 2011, DOI: 10.5219/164
Abstract: Mg, Ca, Zn, Cu, K and Na were determined in some species of Slovakian fruit distillates by atomic absorption spectrometry with the aim to differentiate the spirit drinks according to geographical origin. Potassium, sodium and copper were found as markers with the highest concentrations and variability in the distillates, namely in the apricot and grape brandy. Using the multivariate statistics of principal component and canonical discriminant analysis enabled relative effective differentiation of samples according to their regional origin. Prediction ability of the model resulted in more than 80% of correctly classified samples of the fruit distillates into the relevant Slovakian regions. doi: 10.5219/164
Social structural model and voting behaviour under the conditions of Czech rural areas
R. Kop?iva,P. Varva?ovská
AGRIS on-line Papers in Economics and Informatics , 2011,
Abstract: From a social viewpoint, Czech rural areas are defined by joint, specific interests by which they differ from the urban environment. In relation to this, this article asks the fundamental question whether class polarization is the background factor of voting results, or if political conflict is based on different factors. The aim of this article is, through a case study of Zatec region, to verify the applicability of the social structural model of voting behaviour of citizens of Czech rural areas.
Power and shifting paradigm in translation
Martin Djov?o?,?ubica Plie?ovská
Mutatis Mutandis : Revista Latinoamericana de Traducción , 2011,
Abstract: The paper deals with interrelation of dominant ideology and its influence on the translation and publishing policy as reflected on the example of Slovakia. The introductory part is devoted to theoretical framework for the research drawing upon the works of Slovak and foreign translation scholars. The analytical part is contrastive; it presents publishing tendencies in selected dominant vs dependent cultures within the periods of opposing ideologies (socialistic vs democratic regimes). It clearly shows the shift of paradigm and the place of "small cultures" in the intercultural dialogue/monologue.
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