bluuebunny/crossref_metadata_2025 huggingface dataset:
Chemical composition of meat of laying hens in alternative rearing systems
Authors: Rakonjac Simeon , Bogosavljevic-Boskovic Snezana , Skrbic Zdenka , Peric Lidija , Doskovic Vladimir , Petricevic Veselin , Petrovic Milun
Published: February 2017

The aim of this paper was to estimate the effect of rearing systems (floor
and organic) on the chemical composition of meat of laying hens. The tested
genotypes were Isa Brown hybrid and dual purpose breed New Hampshire. Based
on the results of this research can be concluded that the rearing system,
generally, did not caused statistically significant differences in any of the
parameters examined chemical composition of meat. On the other hand, the
breast meat - white meat and thigh and drumstick - dark meat of New Hampshire
genotype had significantly higher fat content compared to the Isa Brown
hybrid. It must be noted that in the breast meat reported significant
interaction genotype x rearing system. The other parameters of the chemical
composition of meat were not significantly different between reared
genotypes.
The effect of bacterial inoculant on chemical composition and fermentation of alfalfa silage
Authors: Djordjevic Snezana , Mandic Violeta , Stanojevic Dragana
Published: February 2017

Alfalfa silage is a useful source of protein for feeding ruminants.
Therefore, managing alfalfa silage in livestock production systems is an
important issue in order to maintain the silage quality and achieve maximum
profitable production of milk and meat. The aim of this investigation was to
estimate the effects of bacterial inoculant Silko, containing Lactobacillus
plantarum (strains: LP1, LP2, LP3 and LP4) on chemical composition, energetic
characteristics and fermentation alfalfa silage under field conditions in the
commercial dairy farm, during the 2016. The first-cut alfalfa in the second
year has been conserved in silage form. The silage mass was subdivided into
two equal parts (control (silage without inoculant) and silages treated with
bacterial inoculant Silko) and ensiled in trench silo. After 60 days of
ensiling, the silages were analysed. Dry matter, ash, crude protein, lactic
acid, acetic acid, total digestible nutrients value and relative feed value
were significantly higher in silage treated with bacterial inoculant Silko
compared to control. Contrary, alfalfa silage treated with a bacterial
inoculant Silko had lower values of cellulose, acid detergent fibre, neutral
detergent fibre, nonnitro extractive matter, pH, butyric acid, soluble
nitrogen/total nitrogen and NH3- N/total nitrogen than untreated silage.
Results showed that bacterial inoculant Silko increases silage quality
compared to control so that research should be directed toward the use of
such prepared silage in ruminant diets and its impact on milk and meat
production on farms.
Is internal devaluation policy in the EU effective?
Authors: Kersan-Skabic Ines
Published: February 2017

This research provides indepth analysis of the causes and outcomes of
internal devaluation policy in EU. It is conducted using statistical and
econometric tools on a sample of three groups of EU member states: EU new
member states, PIIGS, and the rest of the EU (EU-core). The analysis points
to the key drivers of economic growth in the whole of the EU as being
productivity and investment (and consumption in EU new member states and EU
core members). Unit labour costs are relevant for GDP growth in PIIGS but
with a positive sign, while for the rest of the EU it is not a significant
variable. The policy of internal devaluation is unsuitable for application in
any EU member states, due to individual specificities. The solution is
stronger EU governance that takes the heterogeneity of EU member states into
consideration in the process of creating policies and finding solutions.
The dualism of practical reason and the autonomy: Sidgwick’s pessimism and Kant’s optimism
Authors: Dobrijevic Aleksandar
Published: February 2017

The question this paper is concerned with is: what if Immanuel Kant found a
solution to the problem of the dualism of practical reason before Henry
Sidgwick even came to formulate it? A comparison of Sidgwick?s and Kant?s
approach to the problem of the dualism of practical reason is presented only
in general terms, but the author concludes that this is sufficient for
grasping the advantage of Kant?s solution to the problem.
Donation, tradition et interprétation. Entretien avec Jean-Luc Marion
Authors: Losoncz Mark
Published: February 2017

nema
Deliberative democracy between moralism and realism
Authors: Soc Andrija
Published: February 2017

The topic of this paper is the debate between political moralists and
political realists. I will try to show that it is possible to find the middle
ground that simultaneously satisfies the main demands of both camps while
resisting objections directed against each. In the first part, I start with
the view shared by both moralists and realists: that the main challenge lying
before a political theory is solving the problem of legitimacy. I first
sketch Rawls? moralist approach. I then move to outline the realist
criticisms of such moralism. I will mainly follow one of the most detailed
recent theories - Sleat?s realist theory, although I will also draw from
other well-known realists. In the second part, I outline objections against
realism. They somewhat similar to the same criticisms they themselves direct
against moralists. The main issue is, in short, the problem of
underdetermination - that is, the insufficient determination of political
action by facts. Since realists hold that a political theory has to be
applicable, their view is thus considerably weakened by such criticism. In
the third part of the paper, I point to deliberative theory as a view that
can answer both realist criticism - because its main aspect is dealing with
the way things work in actual politics of concrete societies - but it can
also answer criticisms directed against realists themselves, because
empirical research of deliberation suggests an actual and viable way to solve
the problem of legitimacy - by raising the quality of deliberation. Moreover,
a deliberative theory retains autonomy of the ethical, although it doesn?t do
that, unlike moralism, by encroaching on the autonomy of politics. Thus, at
the end of the paper, I claim that such a deliberative approach can be
accepted by both realists and moralists.
Service life and durability of architectonic structures
Authors: Tamburic Jasmina , Nikolic Vladan , Stojic Dragoslav
Published: February 2017

The paper is based on the analysis of bearing architectonic structures,
properties of material, durability depending on the impacts they are exposed
to. The research is aimed at defining the method of increase of durability of
architectonic structure. The damage to the bearing structure concept would
mean the damage to functionality, form and esthetics of the structure. The
choice of materials and systems of bearing structure is important from the
aspect of architectonic designing, formation and functionality, but also of
safety and reliability. In that sense, structure durability is multiply
important, both for the architectonic form and for the importance of the
structure. The choice of materials and design of forms and connections in the
structure is very important for improvement of durability.
Urban plan of Uzice from 1863 by Emanuel Sefel: From oriental to European urban planning
Authors: Kuzovic Dusko , Stojnic Nedeljko
Published: February 2017

The City of Uzice had 2490 inhabitants in mid 1862. Following the order of
the state administration that every city must have an urban plan, firstly a
Geodetic plan of the current state of the city center was made and based on
it, in May 1863 the first urban plan proposal (author Emanuel Sefel)
appeared. The Ministry of Internal Affairs, because of a large number of
complaints of the population and of a short period time available to make
changes to the plan sent the engineers Joseph Vesely and Joseph Klinar to
Uzice so that they could assist. The second urban plan proposal was completed
towards the end of 1863. The first urban plan of Uzice transformed the town,
previously fully regulated by oriental principles, into a city organized
according to European urban principles. The plan was effective from 1871 to
1891.
Prelude to improving living conditions of Roma in Serbia: Contribution to the contextualization and adaptation of cultural policy paradigms
Authors: Grbic Milena
Published: February 2017

This paper presents a confrontation between the institutional sphere of the
dominant social ethics with the subjective sphere of the particular
beneficiary involved in the study and understanding of the socially
vulnerable Roma situation. At the level of institutional efforts, the thesis
presents general theoretic recommendations on housing the de-privileged
social groups aiming to materialize the social and system integrations. At
the level of strategic planning, by studying the life experience of the Roma
in Belgrade, the thesis describes the life of the Roma population within the
community through the aspects that the Republic strategy framework refers to,
like preservation of the cultural characteristic, housing, education and
employment. The intertwined results of research at both levels show that
life within the Roma community is an objective resource for profiling the
model of Roma housing as type of a support to general integration in the
society.
Small towns as mediators towards spatial resilience: The case study of network of settlements in Vojvodina region
Authors: Simic Ivan , Bajcetic Ratko
Published: February 2017

The development of settlements in Vojvodina is burdened by numerous problems,
both environmental and social, which seriously jeopardize their path towards
resilience. The effects of climate changes have been identified mostly in the
form of floods, inundations and prolonged droughts affecting agriculture as
the dominant activity in the region. On the other hand, settlements in
Vojvodina, especially small towns and villages, suffer from chronic
depopulation and the 'emptying' effect. Naturally, this transfers its
consequences to major cities and the entire regional network of settlements.
In this article we will focus on a particular type of settlement in Vojvodina
- small towns, specific because of their urban-rural character and their
significance within the above-mentioned issues. What are the possibilities
for this type of settlement to improve its ecological resilience, a property
that is the conditio sine qua non of sustainability? Our assumption is that
small towns, due to their hybrid urban-rural character, possess sufficient
flexibility and polyvalence to take on the role of the 'fluid object' i.e.
the mediator that allows the proliferation of relational objects between
urban and rural areas, and that will allow spatial resilience of the entire
network of settlements. We will use the concept of spatial resilience in
order to extend the question of ecological resilience of one type of
settlement to the entire network of towns.
Super-sech soliton dynamics in optical metamaterials using collective variables
Authors: Veljkovic Marija , Milovic Daniela , Belic Milivoj , Zhou Qin , Moshokoa Seithuti , Biswas Anjan
Published: February 2017

This paper presents collective variable approach for super-sech soliton
dynamics in optical metamaterials. The soliton dynamics is governed by the
generalized nonlinear Schr?dinger's equation. The numerical simulations of
pulse width, amplitude, chirp and frequency are given.
On the numerical computation of cylindrical conductor internal impedance for complex arguments of large magnitude
Authors: Vujevic Slavko , Lovric Dino
Published: February 2017

In this paper a numerical algorithm for computation of per-unit-length
internal impedance of cylindrical conductors under complex arguments of large
magnitude is presented. The presented algorithm either numerically solves the
scaled exact formula for internal impedance or employs asymptotic
approximations of modified Bessel functions when applicable. The formulas
presented can be used for computation of per-unit-length internal impedance
of solid cylindrical conductors as well as tubular cylindrical conductors.
Industrial wireless sensor networks as a tool for remote on-line management of power transformers' heating and cooling process
Authors: Nikolic Aleksandar , Neskovic Natasa , Antic Radoslav , Anastasijevic Ana
Published: February 2017

Industrial Wireless Sensor Network used for supervising of high power
transformer cooling system is presented in the paper. Due to the fact that in
the thermal power plant where industrial prototype is installed is very noisy
environment, a lot of problems should be solved in order to obtain high
reliability and accuracy of the system. Results of the analysis presented in
paper are obtained from the real thermal power plant where presented wireless
sensor network based on-monitoring system is used for continuous management
of power transformers? heating and control of their cooling systems. Obtained
results during system operation in longer period confirm its stability,
accuracy and improvement in power plant operation.
Harmonic analysis and modelling of magnetisation process in soft ferromagnetic material
Authors: Koprivica Branko , Dumitru Ioan , Milovanovic Alenka , Caltun Ovidiu
Published: February 2017

The aim of this paper is to present a research of magnetic hysteresis loops
of a toroidal ferromagnetic core made of electrical steel. The experimental
results of induced voltage, magnetic induction and hysteresis loop obtained
at different frequencies of the sinusoidal excitation magnetic field have
been presented. The harmonic content of the induced voltage and magnetic
induction have been calculated using Fast Fourier Transformation. Observed
variation of higher harmonics with frequency has been correlated to the
mechanism of magnetic domain walls damping. A variation of harmonics of the
magnetic induction with the amplitude of the excitation magnetic field has
been analysed and a proper mathematical model has been proposed. Furthermore,
the influence of the triangularly shaped excitation magnetic field and the
distorted shape excitation that produces sinusoidal induction on the shape of
hysteresis loop and harmonic content of the induced voltage and the magnetic
induction has been analysed and discussed.
Modified internal model control for a therapeutic robot
Authors: Kostic Milos , Matausek Miroslav , Popovic Dejan
Published: February 2017

We present the use of the modified internal model controller (MIMC) and the
?Probability Tube? (PT) action representation for robot-assisted upper
extremities training of hemiplegic patients. The robot-assisted training
session has two phases. During the first "demonstration" phase the robot
learns from the therapist the target path through examples. In the second
"exercise" phase the robot assists a patient to follow the target path.
During this process, the control limits the interface force between the robot
and the hand to be below the preset threshold (F = 50 N). The system allows
the assessment of the range of movement, the positional error between the
target and the reached position, the amount of added assistance (the
interface force between the hand and the robot). We demonstrate the operation
in two hemiplegic patients. The patients and therapist suggested after the
tests that the new system is straightforward and intuitive for clinical
applications.
Load sharing methods for inverter-based systems in islanded microgrids: A review
Authors: Egwebe Augustine , Fazeli Meghdad , Igic Petar , Holland Paul
Published: February 2017

This paper explores and discusses various design considerations for
inverter-based systems. Different load sharing techniques are presented for
the integration of renewable energy sources within islanded microgrids. In
off-grid connection, renewable energy sources are often configured to share
power based on their rated capacity. This paper explores both conventional
and dynamic load sharing interaction between distributed generation units,
both in an inductive (high voltage) and resistive (low voltage) networks.
Load sharing based on the proper design of virtual impedance is also
reviewed.
Sparse localization of breast tumors using quasi-TE polarized antennas
Authors: Nikolic-Stevanovic Marija , Dinkic Jelena , Djordjevic Antonije , Music Jasmin , Crocco Lorenzo
Published: February 2017

We develop a three-dimensional (3D) sparse algorithm for localization of
breast tumors, using an antenna array and signal processing. Assuming that
the prior-knowledge of the breast tissue distribution is available, we
develop a model in which the trans-polarization is fully taken into account.
By considering various array configurations, we also investigate the
robustness of the algorithm to the inaccuracies in the assumed
electromagnetic parameters of the breast.
E-plane waveguide bandstop filter with double-sided printed-circuit insert
Authors: Stefanovski-Pajovic Snezana , Potrebic Milka , Tosic Dejan , Stamenkovic Zoran
Published: February 2017

In this paper a novel design of an E-plane bandstop waveguide filter with a
double-sided printed-circuit insert is presented. Split-ring resonators are
used as the resonating elements to obtain the bandstop response. The
amplitude response of the waveguide resonator with a single resonating
element on the insert is analyzed for various dimensions and positions of the
split-ring resonator. The coupling between two resonators on the insert, in
terms of their mutual distance, is considered as a next step to the filter
design. Various positions of the resonators are considered, including the
case with the resonators on the different sides of the insert, which is of
interest for the proposed filter design. Finally, a third-order bandstop
filter with a double-sided printed-circuit insert, operating in the
X-frequency band, is introduced. The filter response is analyzed for various
distances between the resonators and for various positions of the resonator
printed on the other side of the insert. Proposed filter design is simple,
providing for the accurate fabrication, miniaturization and possibility to
relatively easy obtain multi-band response, using resonators with different
resonant frequencies on the different sides of the insert.
Novel approach to modelling of lightning current derivative
Authors: Lundengård Karl , Rancic Milica , Javor Vesna , Silvestrov Sergei
Published: February 2017

A new approach to mathematical modelling of lightning current derivative is
proposed in this paper. It builds on the methodology, previously developed by
the authors, for representing lightning currents and electrostatic discharge
(ESD) currents waveshapes. It considers usage of a multi-peaked form of the
analytically extended function (AEF) for approximation of current derivative
waveshapes. The AEF function parameters are estimated using the Marquardt
least-squares method (MLSM), and the framework for fitting the multi-peaked
AEF to a waveshape with an arbitrary number of peaks is briefly described.
This procedure is validated performing a few numerical experiments, including
fitting the AEF to single- and multi-peaked waveshapes corresponding to
measured current derivatives.
Analytical test structure model for determining lateral effects of tri-layer ohmic contact beyond the contact edge
Authors: Shrestha Neelu , Reeves Geoffrey , Leech Patrick , Pan Yue , Holland Anthony
Published: February 2017

Contact test structures where there is more than one non-metal layer, are
significantly more complex to analyse compared to when there is only one such
layer like active silicon on an insulating substrate. Here, we use analytical
models for complex test structures in a two contact test structure and
compare the results obtained with those from Finite Element Models (FEM) of
the same test structures. The analytical models are based on the transmission
line model and the tri-layer transmission line model in particular, and do
not include vertical voltage drops except for the interfaces. The comparison
shows that analytical models for tri-layer contacts to dual active layers
agree well with FEM when the Specific Contact Resistances (SCR) of the
contact interfaces is a significant part of the total resistance. Overall,
there is a broad range of typical dual-layer-to-TLTLM contacts where the
analytical model works. The insight (and quantifying) that the analytical
model gives on the effect of the presence of the contact, on the distribution
of current away from the contact is shown.
Group velocity of light in ladder-type spherical quantum dot with hidrogenic impurity
Authors: Pavlovic Vladan , Stevanovic Ljiljana
Published: February 2017

The present paper analyzes the group velocity of light in a ladder-type
spherical quantum dot with on-center hydrogenic impurity. The three level
ladder configuration is realized by energy levels of hydrogenic impurity,
together with the probe and control laser fields. Group velocity of the probe
field is then investigated as a function of the spherical quantum dot radius,
probe field frequency, and control laser field intensity.
Characterization and application of biosorbents modified with TiO2 for heavy metal ions removal
Authors: Velinov Nena , Radovic Miljana , Zarubica Aleksandra , Bojic Aleksandar
Published: February 2017

Preparation, characterization and application of materials modified with TiO2
nanoparticle have been reviewed. Chitosan, bacterial biomass and dendrimers
were the starting material for modification. Sorbents characterization was
performed by scanning electron microscopy (SEM). In order to investigate the
sorption capabilities of sorbents, we used them for removal of heavy metal
ions from aqueous solution. The effect of contact time on heavy metal ions
sorption and maximum sorption capacities of biosorbents are shown. As a very
important parameter of the sorption process, the effect of initial pH values
on heavy metal removal was examined. This paper indicates that sorption using
the material modified with TiO2 is becoming a promising alternative to
conventional adsorbents in removing heavy metal ions.
Quantitative structure-gas chromatographic retention index relationship of long-chain esters: The case of Scandix pecten-veneris L. essential-oil constituents
Authors: Mladenovic Marko , Radulovic Niko
Published: February 2017

Motivated by a recent identification of two homologous series of branched
butanoates and pentanoates in S. pecten-veneris essential oil, with an
apparently regular change of their retention index (RI) values, we decided to
examine the generality of such structure-chromatographic property
relationship. Based on the experimentally obtained retention data (RI values
of in total 20 compounds) of hexyl, decyl, tridecyl, tetradecyl, pentadecyl,
hexadecyl, heptadecyl, octadecyl, heneicosyl and tricosyl isobutanoates and
3-methylbutanoates and selected 2-methylbutanoates, a model was built up that
correlates the total number of carbon atoms, Wiener (WI), Balaban (BI) and
molecular topological (MTI) indices of the mentioned esters and their RI data
(RI = 240.5 + 91.2 x C + 2.94 x WI + 4.6 x 10-5 x BI - 0.381 x MTI). The
obtained equation represents a new and simple tool for the prediction of gas
chromatographic (retention indices) data for esters of straight long-chain
fatty alcohols and branched short aliphatic acids.
Isolation and identification of secondary metabolites of Umbilicaria crustulosa (Ach.) Frey
Authors: Zlatanovic Ivana , Petrovic Goran , Jovanovic Olga , Zrnzevic Ivana , Stojanovic Gordana
Published: February 2017

Herein, we have studied secondary metabolites of Umbilicaria crustulosa
(Ach.) Frey. By using preparative HPLC, four compounds were isolated from the
U. crustulosa methanol extract. The structure of isolated lichen substances
was determined on the basis of their 1H, 13C and 2D NMR spectra as follows:
methyl orsellinate, lecanoric acid, methyl lecanorate and gyrophoric acid. In
addition to methanol, the composition of acetone and ethanol extracts were
also studied (analytical HPLC). Relative distributions (%) of the detected
constituents were as follows (in methanol/acetone/ethanol extracts): methyl
orsellinate (5.7/1.5/0.9), lecanoric acid (17.9/5.7/6.7), crustinic acid
(8.0/2.8/2.5), methyl lecanorate (4.8/0/0) and gyrophoric acid
(59.2/78.0/85.7). A significant difference in the chemical profiles of the
studied extracts was in the presence/absence of methyl esters of lichen
acids. Nonetheless, the chemical composition of the ethanol extracts (no
ethyl esters were detected) and the fact that treatment of acetone and
ethanol extracts with methanol does not lead to changes in their composition
suggests that methyl esters were not artifacts of the isolation procedure.
The lower content of methyl orsellinate and the absence of methyl lecanorate
from acetone and ethanol extracts may be the result of different solubilities
of these compounds in methanol, ethanol and acetone.
Risk management of a torrential flood construction project using the Monte Carlo simulation
Authors: Baumgertel Aleksandar , Dragovic Nada , Vulevic Tijana
Published: February 2017

Projects for the regulation of torrent basins carry various unforeseen
adverse effects that may result in breached deadlines, increased costs, a
reduction of quality etc. The paper presents the basic characteristics and
most frequent risks associated with erosion control. Furthermore, it provides
an overview of risk management through its basic stages - starting from risk
identification and risk analysis to risk responses, including the methods
used for risk analysis. As a part of quantitative methods for risk analysis,
the Monte Carlo method is presented as the one most frequently used in
simulations. The Monte Carlo method is a stochastic simulation method
consisting of the following stages: the identification of criterion and
relevant variables, the allocation of probability for relevant variables, the
determination of correlation coefficient among relevant variables, simulation
execution and result analysis. This method was applied in the analysis of the
total cost of the project for the basin regulation of the Dumaca River in
order to determine the funding that would be used as a backup in case of
unforeseen events with a negative impact. The project for the regulation of
the Dumaca River includes basin regulation in the form of complex flow
profile and the lining of zones where necessary in terms of stability. The
total cost is presented as a sum of costs of all works (preliminary works,
earthworks, masonry works, concrete works and finishing works). The Monte
Carlo simulation for cost analysis is carried out using the Oracle Crystal
Ball software with its basic steps described in the paper. A sum of funding
needed as a financial backup in case of unforeseen events with negative
effects is obtained as the simulated total cost of the project.
Impact of wood pellets export on the development of their production in Serbia with the effects of substituting enegry from fossil fuels and reduction of carbon dioxide emission
Authors: Glavonjic Branko , Lazarevic Aleksandra , Comic Dragan
Published: February 2017

The paper presents the results of researching the impact of export on the
production of wood pellets as well as the situation on the market for this
wood fuel in Serbia. Objective of the research was to produce scientifically
and professionally founded conclusions and the related adequate
recommendations to the decision makers in order to improve the situation on
wood pellets market in Serbia and eliminate the existing problems which
significantly burden and slow down this development. Special objective of the
research was to observe the contributions of wood pellets to the mitigation
of climate changes using Serbia as the example. Results of the conducted
research show that the expansion of the consumption (demand) increase in the
European Union countries in the last fifteen years and the related increase
of export from Serbia are the most significant factors which have influenced
the development of wood pellets production in Serbia. Parameters of
econometric model of the impact of export on the increase of production show
that production increase of 1.17% can be expected with the increase of export
of 1%. Thus, the number of wood pellet producers has rapidly increased in the
last ten years, from 2 producers in 2006 to 52 active producers in 2016.
Increase of the number of producers was also accompanied by the increase of
the installed capacities. At the end of 2015, total installed capacities for
wood pellet production in Serbia reached 550 thousand tons, and the realized
production was 229 thousand tons, or 41.6% of the installed capacity.
Consumption of wood pellets in Serbia in the last four years achieved
significant increase and reached the level of 89 thousand tons in 2015.
However, concerning the segment of wood pellets consumption in Serbia, the
situation is still unsatisfactory despite the fact that the consumption has
been increasing year after year. Average price of 1 kWh of energy from wood
pellets exported from Serbia was in the range 20-44 ?$, which is 2.1 to 3.2
times less than the price of 1 kWh of energy from the natural gas which was
imported in Serbia in the observed period.
Flood impact on soil properties and the local community: Study area of the Kolubara river flood zone
Authors: Miljkovic Predrag , Todosijevic Mirjana , Beloica Jelena , Cakmak Dragan , Milcanovic Vukasin , Kadovic Ratko , Belanovic-Simic Snezana
Published: February 2017

Floods cause soil degradation, leading to a reduction in agricultural
production, which interacts with the socio-cultural, economic and natural
environment. The frequency of flood events may be due to synergistic actions
of all factors both natural and anthropogenic. Local community in the river
Kolubara catchment was exposed to the catastrophic flood in May 2014. and
suffered a lot of damage. This paper analyzes the consequences of these
floods in the flood zone of the Kolubara River as well as their impact on
soil properties. Since the local community in study area depends primarily on
agriculture, the impact of flood from socio-economic aspect was analyzed
using the SWOT (Strengths, Weaknesses, Opportunities, Threats) method.
Attitudes of ornamental trees and shrubs producers towards nursery production of ornamental beech cultivars in Serbia
Authors: Nonic Marina , Nedeljkovic Jelena , Nonic Dragan , Sijacic-Nikolic Mirjana
Published: February 2017

European beech (Fagus sylvatica L.) is, along with its significance as a
forest species, renowned as an ornamental species, due to its numerous
cultivars. Ornamental beech cultivars are planted in various green spaces,
but a small number of such trees have ascertained in Serbia. For the time
being, production of beech cultivars is represented in a very small number of
nurseries, with a negligible share of those seedlings in their total
assortment. The aim of this research is to study the attitudes of ornamental
trees and shrubs producers towards the nursery production of ornamental beech
cultivars, and possibilities of its improvements in Serbia. ?Door to door?
survey and in-depth interviews were used as research techniques. Surveys with
the representatives of 65 nurseries in Serbia (in the selected statistical
region Sumadija and Western Serbia) were conducted in the first stage of data
collection. In the second stage of data collection were interviewed the
representatives of the 10 nurseries who, during the survey, pointed out that
they produce ornamental beech cultivars. Nurserymen?s attitudes suggest that
there is a possibility to improve the production of ornamental beech
cultivars in Serbia, with the appropriate support measures and increased
interest of customers on the market, i.e. with the provision of subsidies for
the production of seedlings and greater use of cultivars by utility companies
in the cities of Serbia.
Influence of thermal treatment on color change of beech wood with red heartwood
Authors: Todorovic Nebojsa , Popovic Zdravko , Milic Goran , Popadic Ranko
Published: February 2017

The goal of this word was to examine the parameters of color of beech wood
before and after thermal treatment, and to determine if there is a difference
in color between sapwood and red heartwood before and after application of
high temperature. Samples were treated at temperatures of 170?C, 190?C and
210?C, respectively, during 4 hours. Color coordinates (CIEL*a*b* system)
were measured before and after treatment by using the following parameters:
?L, ?a, ?b and ?E - color change. Color was assessed at four spots on the
radial and cross-section surfaces of wood and their mean values were taken
for further calculations. Acquired results show that the applied heat
treatment of sapwood did not significantly influence the change of color
difference between cross-section and radial surfaces. The difference between
cross-section and radial surfaces, in nontreated red heartwood was smaller
than that measured in sapwood. The color difference of nontreated sapwood and
red heartwood was more pronounced on the radial than on the cross-section
surface. Application of high temperature caused a significant decrease of
this difference. Temperature of 210?C caused the smallest color difference
between these two parts of wood which was in this research determined on the
radial surface. It was concluded that the applied thermal treatment almost
equalized the colors of sapwood and red heartwood, especially on the radial
surface, and from this aspect it can be concluded that these two parts of
beech wood were completely equalized. It should also be noted that in the
case of equalized properties, sapwood and red heartwood can be equally
applied in a final product made of thermally treated beech wood.
The cultural landscape: From conservation to planning concept
Authors: Vasilјevic Nevena , Radic Boris
Published: February 2017

The interpretation of the concept of cultural landscape, as well as the
interpretation of the general concept of landscape, depends on the context in
which the process takes place. As an antithesis to natural landscape, and as
notion of spatial and temporal interaction of man and nature, the cultural
landscape is conceptualized in terms of scientific approach. The experiences
prove that the traditional dichotomy in defining the landscape value (natural
vs. cultural), as well as the aspect of its protection, evolving into a
holistic approach, which is promoted in European Landscape Convention, at the
beginning of XXI century. In the modern theory and practice of spatial
planning and nature protection, the concept of cultural landscape appears as
a holistic, multidimensional and multifunctional entity, which, in times of
globalization, should be preserved and developed in accordance with its
regional and local identity (character). The question is: what kind of
methodological approach should be applied in determining the landscape value
in the spatial planning and nature conservation? The aim of the research is
to explain the evolution of landscape approach form reductionism to holistic
problem-oriented transdisciplinary research that allows appropriate
evaluation of the cultural landscape potential and its application in the
spatial planning concept. At the same time, the aim is to explain the
conceptualization of the cultural landscape in terms of the institutional
protection of natural and cultural heritage and spatial planning in Serbia.
The purpose of this paper is to point to legal instruments of the Spatial
Plan of the Republic of Serbia which defining the obligations of determining
the landscape character in the planning concept in spatial and urban plans,
as well as the re-evaluation of existing values of cultural landscapes. The
subject of the paper is theoretical concept of cultural landscape and the
character of the cultural landscape Trsic-Tronosa. The value of the landscape
character is interpreted and metrically expressed for the purposes of the
Study of protection of the landscape of exceptional features Trsic-Tronosa -
cultural landscape. At the end, the finding of the presented research
confirming the applicability of the methods of landscape characterization in
the spatial planning concept.
Food processing as a means for pesticide residue dissipation
Authors: Djordjevic Tijana , Djurovic-Pejcev Rada
Published: February 2017

Pesticides are one of the major inputs used for increasing agricultural
productivity of crops. However, their inadequate application may produce
large quantities of residues in the environment and, once the environment is
contaminated with pesticides, they may easily enter into the human food chain
through plants, creating a potentially serious health hazard. Nowadays,
consumers are becoming more aware of the importance of safe and high quality
food products. Thus it is pertinent to explore simple, cost-effective
strategies for decontaminating food from pesticides. Various food processing
techniques, at industrial and/or domestical level, have been found to
significantly reduce the contents of pesticide residues in most food
materials. The extent of reduction varies with the nature of pesticides, type
of commodity and processing steps. Pesticides, especially those with limited
movement and penetration ability, can be removed with reasonable efficiency
by washing, and the effectiveness of washing depends on pesticide solubility
in water or in different chemical solvents. Peeling of fruit and vegetable
skin can dislodge pesticide residues to varying degrees, depending on
constitution of a commodity, chemical nature of the pesticide and
environmental conditions. Different heat treatments (drying, pasteurization,
sterilization, blanching, steaming, boiling, cooking, frying or roasting)
during various food preparation and preservation processes can cause losses
of pesticide residues through evaporation, co-distillation and/or thermal
degradation. Product manufactures, from the simplest grain milling, through
oil extraction and processing, juicing/pureeing or canning of fruits and
vegetables, to complex bakery and dairy production, malting and brewing, wine
making and various fermentation processes, play a role in the reduction of
pesticide contents, whereby each operation involved during processing usually
adds to a cumulative effect of reduction of pesticides present in the
material. There is diversified information available in literature on the
effect of food processing on pesticide residues which has been compiled in
this article.
Cucumber susceptibility to simulated soil residues of clomazone
Authors: Gajic-Umiljendic Jelena , Djordjevic Tijana , Santric Ljiljana , Saric-Krsmanovic Marija , Radivojevic Ljiljana
Published: February 2017

A laboratory bioassay was conducted to investigate the susceptibility of
cucumber to the residual activity of clomazone in loamy and sandy soils. The
effects of three different levels of soil moisture (20, 50 and 70% field
capacity - FC) was also examined. Clomazone was applied in concentration
series of 0.047-6 mg a.i./kg soil. Plants grew for 21 days, upon which period
physiological parameters (content of carotenoids, chlorophyll a and
chlorophyll b) were measured. Clomazone caused leaf bleaching and reduction
in pigments content in cucumber leaves in both types of soil at all levels of
soil moisture, and the degree of change depended on application rates.
Inhibition was higher in plants grown in the sandy soil, while the least
sensitive were cucumber plants grown in both types of soil with 20% FC. The
findings in this study showed moderate cucumber susceptibility to clomazone
residues in loamy and sandy soils.
Effects of herbicides on growth and number of actinomycetes in soil and in vitro
Authors: Santric Ljiljana , Radivojevic Ljiljana , Gajic-Umiljendic Jelena , Saric-Krsmanovic Marija , Djurovic-Pejcev Rada
Published: February 2017

This study was conducted under laboratory conditions to investigate the
effects of herbicides (nicosulfuron, metribuzin and glyphosate) on the number
of actinomycetes in soil and growth of several isolates of actinomycetes in
vitro. The lowest tested concentrations equalled the recommended rates (1X),
while the other three were five-fold (5X), ten-fold (10X) and fifty-fold
(50X). Samples were collected for analysis 3, 7, 14, 30 and 45 days after
herbicide application. Treatment with the two highest concentrations of
herbicides (10X and 50X) caused a significant inhibition of the number of
actinomycetes in soil and growth of the isolates in vitro. The obtained data
indicated that the effect depended on the type of herbicide, application
rate, duration of activity and actinomycetes isolate. The study suggests that
herbicide applications in soil caused transient effects on the growth and
development on actinomycetes community in soil.
Attractiveness of essential oils of three Cymbopogon species to Tribolium castaneum (herbst) adults
Authors: Djukic Nikola , Radonjic Andja , Andric Goran , Kljajic Petar , Drobac Milica , Omar Eihab , Kovacevic Nada
Published: February 2017

Behavior bioassays were conducted in the laboratory (23 ? 1?C and 50 ? 5%
r.h.) using the olfactometer to determine the effects of essential oils of
three plant species in the Cymbopogon genus (Lemongrass), Cymbopogon
nervatus, C. proximus and C. schoenanthus, on adults of Tribolium castaneum.
The effect of essential oils was compared to a commercial biopesticide based
on azadirachtin at three concentrations (0.0001, 0.001 and 0.01%). The
results showed that all essential oils and the azadirachtin-based
biopesticide had significant (p <0.05) repellent effects on T. castaneum
adults at all tested concentrations, except C. proximus essential oil which
showed a neutral effect at the lowest concentration. The highest
concentrations of the essential oils of C. nervatus and C. proximus had
significantly stronger repellent effects (p <0.05) than the lowest
concentration. At the concentrations of 0.0001 and 0.001% all tested
essential oils and azadirachtin showed a similar repellent effect without
statistically significant difference, whereas the oil of C. nervatus had the
highest repellent effect on adults of T. castaneum at the 0.01%
concentration. Considering all tested variations, the essential oils of
plants of the genus Cymbopogon showed similar or stronger repellent effects
on T. castaneum adults than the biopesticide based on azadirachtin.
Phenology of cabbage stem flea beetle (Psylliodes chrysocephala L.) in oilseed rape
Authors: Sivcev Lazar , Graora Draga , Sivcev Ivan , Tomic Vladimir , Dudic Boris
Published: February 2017

The cabbage stem flea beetle (Psylliodes chrysocephala (L.) is an important
pest of winter oilseed rape in Serbia. Beetles colonize oilseed rape in early
October and are active in the field until first frost and wintertime. In
autumn, adults can be seen laying eggs in the soil around plants. Larvae of
P. chrysocephala developed intensively on leaf petioles in November, reaching
their highest numbers at the end of the month. No infested plants were found
in a conventional field, while 14.5% of all dissected leaf petioles were
infested on an integrated field. On unprotected plants in an organic field,
76.0% of the plants were infested with larvae at the growth-stage BBCH 18-19,
with 31.1% infested leaves on average. As a results, the number of plants was
reduced by 51%, i.e. from 43.0/m2 recorded in the autumn to 22.0/m2 in the
following spring. A new generation of P. chrysocephala beetles emerged from
the soil in the first half of June and rapidly escaped the fields from almost
dry plants. Our results showed that a part of the population stayed in
aestivation and emerged in the following crop during the next season. On the
following 5 March, 0.5 beetles/m2 were found in emergence cages in the
organic field, while 0.81beetles/m2 were found in the former trap crop.
Nicifor Ninkovic - on the trail of his “Autobiography ” and other historical sources
Authors: Popovic Radomir
Published: February 2017

?My Autobiography? by Nicifor Ninkovic, barber to Prince Milos, is one of the
most widely read Serbian memoirs. There were five reprints from 1976 to 2016.
Our only information on his life can be gathered from that work. He was born
in the Syrmian village of Dobrinci in 1788. He crossed over to insurgent
Serbia in 1807. In the winter of 1812-1813 he moved through Wallachia and
went to Constantinople. He returned to Serbia in 1819. He was personal barber
to Prince Milos from 1822 to 1826. Then he served as a scribe in the Rudnik
District Magistrate in 1828-1829. He left Serbia again in 1831 and spent ten
years roaming around Turkey. He finally came back to Serbia in late 1841 or
early 1842. This paper focuses on the unknown sources from the Archive of
Serbia and the Historical Archive of Belgrade related to Nicifor Ninkovic,
which include his requests to Prince Milos dated April 28/May 10, 1819, April
24/May 6, 1825, and April 14/26, 1826, in which he asks for the ruler?s mercy
or employment, also a letter to Prince Milos?s secretary Nikola Nikolajevic
dated October 13/25, 1820, in which he recommends himself for the post of the
Prince?s barber. The registers of births, marriages and deaths of Belgrade
Cathedral contain information on the date of his marriage to Hristina from
Zemun (April 30/May 12, 1822), the birth and death of his daughter Draginja
(March 16/28, 1827 - March 18/30, 1834), and the death of his wife Hristina
(January 5/17, 1835). We put forth a new argument that Nicifor Ninkovic died
in Belgrade, and not in Pozarevac, as has been held so far.
Forgoten authores Nikica Bovolini a contribution to illuminating an unknown literary work
Authors: Crljic Vera
Published: February 2017

The paper deals with the work of the little-known writer Nikica Bovolini
(Dubrovnik, 1899 - Belgrade, 1975). She published a book of short stories
entitled Between Light and Darkness (Izmedju svijetla i tmine), in Dubrovnik,
in 1921. The copy of this book kept in the holdings of the National Library
of Serbia in Belgrade is unique because it contains a handwritten addition -
the autograph of a poem entitled To the Serbian Warrior (Srpskom ratniku),
signed by the authoress. In this poem, dated in Dubrovnik in 1918, written at
the end of the First World War, the young poetess Nikica Bovolini expresses
sincere admiration for the Serbian soldier as a liberator of the Adriatic.
The short stories in this collection were written at the end of the Great War
or immediately after it, mostly inspired by the struggle for freedom and
unification of the Serbs, Croats and Slovenes, as well as by the importance
of educating young generations and the development of science in creating a
better society. In periodical publications between the two world wars
appeared a small number of her poems and three articles that were not of
literary character. The full extent of her creativity is unknown. Nikica
Bovolini was from the first generation of nurses that graduated from the
School of Nursing of the Red Cross Society of the Kingdom of Serbs, Croats
and Slovenes, founded in 1921 in Belgrade. As an instructor and assistant to
the headmistress of the School of Nursing she significantly contributed to
the organization and education of nurses in Yugoslavia after the First World
War.
A six-factor model of brand personality and its predictive validity
Authors: Zivanovic Marko , Cerovic Sofija , Bjekic Jovana
Published: February 2017

The study examines applicability and usefulness of HEXACO-based model in the
description of brand personality. Following contemporary theoretical
developments in human personality research, Study 1 explored the latent
personality structure of 120 brands using descriptors of six personality
traits as defined in HEXACO model: Honesty-Humility, Emotionality,
Extraversion, Agreeableness, Conscientiousness, and Openness. The results of
exploratory factor analyses have supported HEXACO personality six-factor
structure to a large extent. In Study 2 we addressed the question of
predictive validity of HEXACO-based brand personality. Brand personality
traits, but predominantly Honesty-Humility, accounted for substantial amount
of variance in prediction of important aspects of consumer-brand
relationship: attitude toward brand, perceived quality of a brand, and brand
loyalty. The implications of applying HEXACO-based brand personality in
marketing research are discussed.