oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2015 ( 10 )

2014 ( 17 )

2013 ( 14 )

2012 ( 17 )

Custom range...

Search Results: 1 - 10 of 93 matches for " Barbora Baloghová "
All listed articles are free for downloading (OA Articles)
Page 1 /93
Display every page Item
Hop pellets as an interesting source of antioxidant active compounds
Andrea Holubková,Silvia Mo?ovská,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
Radical Stabilization in Dissolved Humates  [PDF]
Barbora Bakajová, Ray von Wandruszka
Open Journal of Physical Chemistry (OJPC) , 2011, DOI: 10.4236/ojpc.2011.13008
Abstract: Quinoid entities, in which quinone and hydroquinone groups equilibrate via a semiquinone radical intermediate, are a common structural feature in humic materials. The electron paramagnetic resonance (EPR) signals of these radicals are significantly enhanced in the presence of diamagnetic divalent metal ions such as Mg2+, while monovalent ions do not show the effect. The addition of trivalent ions leads to rapid precipitation, leaving little room for observation. It was noted that the metal ions producing EPR signal enhancement were also underwent effective bridging interactions with humic subunits, forming pseudomicellar structures. Particle growth determined through dynamic light scattering measurements coincided with the onset of EPR signal enhancement, and surface tension measurements further corroborated the coincidence of aggregation. The addition of a chaotrope (urea), which broke up the humic structures, eliminated the EPR signal increases. These observations strongly suggested that bridging interactions by divalent metal ions, and the intramo- lecular aggregation that accompanied it, led to significant stabilization of semiquinone radicals within the humic structure.
Perpetrando o bem: as conseqüências n?o desejadas da defesa dos direitos humanos
Bukovská, Barbora;
Sur. Revista Internacional de Direitos Humanos , 2008, DOI: 10.1590/S1806-64452008000200002
Abstract: the article analyzes the negative impact of popular strategies used by international human rights organizations when promoting human rights causes; namely human rights reporting, advocacy and strategic litigation. it critically assesses these strategies, and questions whether they are working and if so, for whom. at the same time, the author questions the legitimacy of international human rights organizations to represent victims of human rights violations and their lack of accountability towards the victims. the author argues that the means used by human rights advocates in their work might be damaging and counterproductive for the victims as their methods often falsify the true experience of victims of human rights violations and end up suppressing their independence, competence and solidarity. rather than eliminating power relations and domination over those they aim to help, human rights advocates often sustain power imbalances and use human rights violations as a commodity. the article calls for broader cooperation of human rights advocates with victims, by embracing more holistic models of activism.
Using GIS for creation of geohazards map as a base for landuse planning
Barbora Magulová
Acta Geologica Slovaca , 2009,
Abstract: Geohazards represent a significant barrier for further utilization of environment. This article presents the use of statistical methods and analysis tools implemented in Geographical Information Systems (GIS) environment for geohazards assessment of small urbanization units. As a case study the Levo a region was selected, covering an area of 83.75 km2 in total. The area is mostly affected by landsliding and flooding. The distribution of these geohazards is evaluated. The case study provides the prognosis of hazard spatial distribution, however not the time recurrence of their activation. The results of evaluation are prognostic maps of landslide hazard and flood hazard.
STUDENTS WITH ASPERGER SYNDROME AND HIGH-FUNCTIONING AUTISM
BARBORA BAZALOVá
Ad Alta : Journal of Interdisciplinary Research , 2011,
Abstract: This paper focuses on students with Asperger syndrome and Highfunctioningautism. Their intelligence level is in the average range, they should beeducated in mainstream schools although it might not always be easy. The process ofintegration/inclusion depends on many factors. The social skills of these students areoften weak and may cause difficulties in educational settings. Many teachers are notsufficiently prepared to meet the special needs of these students.
Sentencing of International Crimes at the ICTY and ICTR
Barbora Hola
Amsterdam Law Forum , 2012,
Abstract: One of the fundamental principles of justice is consistency - like cases should be treated alike. Consistency of sentencing can be approached on several levels – the two fundamental ones being consistency in approach and consistency in outcome. The former refers to a principled way of sentence determination while the latter concerns the actual sentencing outcomes in a sense of numerical comparisons of sentence length across individual cases. This article analyses ‘consistency in approach’ of sentencing at the International Criminal Tribunals for the Former Yugoslavia and Rwanda (ICTY and ICTR). The conclusions demonstrate that on a general level, a set of sentencing principles is consistently emphasised in the ICTY and ICTR cases. The inconsistencies and disparities across cases are, however, identified with respect to particularities, such as what factors are relevant for the gravity assessment and whether a particular mitigating/aggravating factor indeed aggravates/mitigates the sentence in a particular case. The main problem of the ICTY and ICTR judges’ sentencing reasoning seems to be a lack of transparency and clarity. On the basis of a critical examination of the ICTY and ICTR case law the article offers suggestions on how to develop more transparent and understandable sentencing practices.
Existence of Chaos in Plane $\mathbb{R}^2$ and its Application in Macroeconomics
Barbora Volná
Mathematics , 2014,
Abstract: The Devaney, Li-Yorke and distributional chaos in plane $\mathbb{R}^2$ can occur in the continuous dynamical system generated by Euler equation branching. Euler equation branching is a type of differential inclusion $\dot x \in \{f(x),g(x) \} $, where $f,g:X \subset \mathbb{R}^n \rightarrow \mathbb{R}^n$ are continuous and $f(x) \neq g(x)$ in every point $x \in X$. Stockman and Raines (Stockman, D. R.; Raines, B. R.: Chaotic sets and Euler equation branching, Journal of Mathematical Economics, 2010, Volume 46, pp. 1173-1193) defined so-called chaotic set in plane $\mathbb{R}^2$ which existence leads to an existence of Devaney, Li-Yorke and distributional chaos. In this paper, we follow up on Stockman, Raines and we show that chaos in plane $\mathbb{R}^2$ with two "classical" (with non-zero determinant of Jacobi's matrix) hyperbolic singular points of both branches not lying in the same point in $\mathbb{R}^2$ is always admitted. But the chaos existence is caused also by set of solutions of Euler equation branching which have to fulfil conditions following from the definition of so-called chaotic set. So, we research this set of solutions. In the second part we create new overall macroeconomic equilibrium model called IS-LM/QY-ML. The construction of this model follows from the fundamental macroeconomic equilibrium model called IS-LM but we include every important economic phenomena like inflation effect, endogenous money supply, economic cycle etc. in contrast with the original IS-LM model. We research the dynamical behaviour of this new IS-LM/QY-ML model and show when a chaos exists with relevant economic interpretation.
Relaxation Oscillations in New IS-LM Model
Barbora Volná
Mathematics , 2012,
Abstract: In this paper, we create new version of IS-LM model. The original IS-LM model has two main deficiencies: assumptions of constant price level and of strictly exogenous money supply. New IS-LM model eliminates these deficiencies. In the second section, we prove the existence of relaxation oscillations in this new IS-LM model.
Can We Explain Unexpected Fluctuation of Long-Term Real Interest Rate?
Barbora Volna
Quantitative Finance , 2012,
Abstract: In this paper, we create a model of unexpected fluctuation of the long-term real interest rate. This model is based on our new version of IS-LM model. The new IS-LM model eliminates two main deficiencies of the original model: assumptions of constant price level and of strictly exogenous money supply. The unexpected fluctuations of the long-term real interest rate can be explained by existence of special type of cycle called relaxation oscillation on money (or financial assets) market. Relaxation oscillations include some short parts looking like "jumps". These "jumps" can be interpreted like unexpected. In other words, we try to explain these "unexpected" fluctuations of long-term real interest rate and show that these fluctuations can be only seemingly unexpected. Last but not least, we show some impacts of the government intervention by fiscal or monetary policy on economics using this models. Then we suggest possible interaction between fiscal and monetary policy.
Assessing Observation Methods for Landscape Planning Practice in Rural Villages  [PDF]
Barbora Lipovská, Roberta ?těpánková
Current Urban Studies (CUS) , 2013, DOI: 10.4236/cus.2013.14011
Abstract:

In recent years, people’s behaviour has become attractive not only for psychologists and sociologists but also for urban planners, architects, landscape architects and all those involved in designing people’s environment. Community has its own interest in the site that we should consider. This paper identifies people-space relations and reflects on the implications from theory and practice in landscape architecture, in relation to the use and potential physical change to public open space in rural settlements. As far as is known, there are no specific methodologies for assessing the use of rural public areas—public spaces in villages. This paper presents observation methodology providing information of the form of public spaces, their users and how public spaces are used. These surveys are important for landscape architects who design public spaces not just with vegetation but with hard landscape features (such as outdoor furniture, paths, and playgrounds).

Page 1 /93
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.