bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structural asymmetries, innovation measurement and innovation policies in the EU
Authors: Mamede Ricardo Paes 
Published: January 2018

Abstract
Deep asymmetries in economic structures across EU member states became evident in the context of the recent crises in the eurozone. Notwithstanding, innovation policy analysis at the EU level tends to overlook these asymmetries. The use of innovation scoreboards – such as the Innovation Union Scoreboard (IUS) – as a main device for policy monitoring and benchmarking adds to the common tendency for one-size-fits-all approaches to innovation policy. In fact, the methodology underlying the construction of the IUS largely ignores the wide variety of economic structures among the countries under analysis. This article shows that once each country’s economic structure is considered the assessment of innovation strengths and weakness at the national level may change significantly. Policy recommendations may be improved accordingly.
Graphophilia, film, typewriter
Authors: Thomson Claire 
Published: January 2018

Abstract
Flimmer’s narrator ‘never wrote back’, but the film engraves her words on the affair’s detritus: cigarettes, spilt milk, a doll, typewriter keys and the film’s surface. Flimmer thus uses nostalgia for technologies of indexical inscription, such as the typewriter to respond to emerging digital practices such as the RED camera.
About the Profile Accuracy of the Involute Gear Hob
Authors: Máté Márton , Hollanda Dénes 
Published: January 2018

Abstract
Gear hobs are the most widely and frequently used gear cutting tools. During the time passed between the moment of invention (Schiele, 1876) and the present, gear hobs reached a considerable evolution regarding the geometry, the profile of the edge, the relieving technologies finalizing in the latest constructive and design solutions. This paper deals with the calculus of the edge profile in the case the basic worm of the hob has involute helicoid surfaces. In order to obtain a constant grinding allowance on the relief faces of the gear hob teeth it is necessary to compute the edge of the roughing relieving cutter. The equations are deduced considering that the provenience involute worm is a one teethed helical gear with shifted profile. The presented mathematical model proves that linearizing the relieving cutter profile is not an adequate solution if aspiring to higher precision.
Solving of the Modified Filter Algebraic Riccati Equation for H-infinity fault detection filtering
Authors: Horváth Zsolt , Edelmayer András 
Published: January 2018

AbstractThe objective of this paper is solving of the Modified Filter Algebraic Riccati Equation (MFARE) for calculating of the filter gain. The results are used for model-based fault detection filtering of faults in the air path of diesel engines. The Hinfinity optimization approach requires the solution of a linear-quadratic optimization problem that leads to the solution of MFARE. In our paper two basic concepts for solving MFARE are examined, namely the analytically implemented gamma-iteration and casting the problem as a convex optimization problem based on Linear Matrix Inequalities (LMIs).The algorithms are implemented in MATLAB. Each algorithm has to ensure the condition for a global convergence and also has to deliver an optimal solution. Not at least, the computational cost has to be as small as possible.
Paradoxes of Visibility
Authors: Tarnay László 
Published: January 2018

Abstract
The paper investigates two possible critical arguments following the pictorial turn. The first is formulated within ocularcentrism, the dominance of sight, and starts with the right to visibility as a general principle that governs today’s digital culture but gets twisted in special cases like the Auschwitz photos of the Shoa, the Abu Ghraib prison videos, or recently the website called Yolocaust. The second is conceived outside the visual culture and is meant to vindicate the other senses vis-à-vis the eyes. However, the argument is truncated here only to highlight the boomerang effect of the other senses: haptic vision. It is the case of visual perception when (a) there is a lack of things to see and (b) indeterminate synaesthesia: when vision intensifies the other senses in the embodied viewer. The two arguments converge upon a dialectic of the visible and the imaginable, which is formulated here as two paradoxes that the discussed examples transcend. By enforcing visibility at all costs where there is hardly anything recognizable to see, they lead to two diverging results. On the one hand, the meaning of “image” is extended toward the unimaginable, the traumatic experience, on the other hand, it is extended toward the invisible, the encounter with the radical Other.
Film and Media as a Site for Memory in Contemporary Art
Authors: Martinez Rosario Domingo 
Published: January 2018

Abstract
This article explores the relationship between film, contemporary art and cultural memory. It aims to set out an overview of the use of film and media in artworks dealing with memory, history and the past. In recent decades, film and media projections have become some of the most common mediums employed in art installations, multi-screen artworks, sculptures, multi-media art, as well as many other forms of contemporary art. In order to examine the links between film, contemporary art and memory, I will firstly take a brief look at cultural memory and, secondly, I will set out an overview of some pieces of art that utilize film and video to elucidate historical and mnemonic accounts. Thirdly, I will consider the specific features and challenges of film and media that make them an effective repository in art to represent memory. I will consider the work of artists like Tacita Dean, Krzysztof Wodiczko and Jane and Louise Wilson, whose art is heavily influenced and inspired by concepts of memory, history, nostalgia and melancholy. These artists provide examples of the use of film in art, and they have established contemporary art as a site for memory.
The Honey as a Bioindicator of the Environment
Authors: Sager Manfred 
Published: January 2018

Abstract
Monofloral rape, sunflower, linden and acacia honeys as well as honeys sampled within and around the Austrian towns Vienna and Linz, as well as in rural areas in Lower Austria, were analysed for main and trace elements. The results were tested to be used as indication of urban dust exposure. Main elements of the ash are K, P, and B, which are specific for plant origin. Ash based data correct for dilutions by the sugar matrix. They showed enrichments of Cu, Zn and Mo, whereas the contaminant elements Cd, Pb and Co were found at about the same levels as expectable in dust. Ash-based Al, Fe, Cr and Li were much lower than soil levels obtainable from aqua regia. Among the monofloral honey samples, the effect of adjacent soil was largest for Mn. Most differences between rural areas and urban areas in Vienna and Linz were within experimental errors, both per sample weight and per ash weight. In cases honey samples are considered to trace contaminations, the additional use of ash-based data is recommended.
Learner Autonomy as a Factor of the Learning Process in Distance Education
Authors: Fotiadou Aggeliki , Angelaki Christina , Mavroidis Ilias 
Published: January 2018

Abstract
The present study aims to empirically examine the relation between learner autonomy and specific aspects of the learning process, such as student-student interaction and tutor-student interaction, in a distance learning environment in Greece. An empirical study was conducted at the Hellenic Open University (HOU) using data gathered via a four-section questionnaire, completed by 100 postgraduate students. The correlation analysis yielded a positive correlation between learner autonomy and both student-student and tutor-student interaction. In particular, the results revealed the existence of a positive correlation between all three subscales of autonomy, namely sensibility to others, ability to manage new situations and self-awareness, and student-student interaction. A significant positive correlation was also observed between selfawareness and tutor-student interaction. Moreover, the results suggested that there are no statistically significant differences of the above parameters in relation to demographic features, such as gender, age and the number of Counselling Group Sessions (CGS) in which students had participated. Yet, results suggested that there is an effect of the number of course modules attended by students on the levels of student-student interaction.
Methodological approach for the estimation of a new velocity model for continental Ecuador
Authors: Luna Marco P. , Staller Alejandra , Toulkeridis Theofilos , Parra Humberto 
Published: January 2018

AbstractWe used 33 stations belonging of the Ecuador Continuous Monitoring GNSS Network (REGME) during the period 2008-2014, with aim to contribute with a methodological approach for the estimation of a new velocity model for Continental Ecuador. We used daily solutions to perform the analysis of GNSS time series, to obtain models of the series that best fit, taking into count the trend, seasonal variations and the type of noise. The sum of all these components represent the real-time series, and thus we can have a better estimation of the velocity parameter and its uncertainty.The velocities were calculated introducing the trend, seasonality and noise that were presented in each series into the overall model, which improved uncertainty by 12% and changed in magnitude up to 1.7 mm/yr and 2.5 mm/yr in the horizontal and vertical components, respectively, with respect to the initial velocities. The velocity field describes the crustal movement of the REGME stations in mainland Ecuador with uncertainty of 1 mm/yr and 2 mm/yr for the horizontal and vertical components, respectively. Finally, a velocity model has been developed using the kriging technique whose geostatistical approach has been based on the data to identify the spatial characteristics by examining the observations by peers. The mean square error (rms) of prediction obtained in this method is 1.78 mm/yr and 1.95 mm/yr in the east and north components, respectivaly. The vertical component could not be modeled due to its chaotic behavior.
SPH Modelling of Sea-ice Pack Dynamics
Authors: Staroszczyk Ryszard 
Published: January 2018

Abstract
The paper is concerned with the problem of sea-ice pack motion and deformation under the action of wind and water currents. Differential equations describing the dynamics of ice, with its very distinct mateFfigrial responses in converging and diverging flows, express the mass and linear momentum balances on the horizontal plane (the free surface of the ocean). These equations are solved by the fully Lagrangian method of smoothed particle hydrodynamics (SPH). Assuming that the ice behaviour can be approximated by a non-linearly viscous rheology, the proposed SPH model has been used to simulate the evolution of a sea-ice pack driven by wind drag stresses. The results of numerical simulations illustrate the evolution of an ice pack, including variations in ice thickness and ice area fraction in space and time. The effects of different initial ice pack configurations and of different conditions assumed at the coast-ice interface are examined. In particular, the SPH model is applied to a pack flow driven by a vortex wind to demonstrate how well the Lagrangian formulation can capture large deformations and displacements of sea ice.
Enhanced method of fast re-routing with load balancing in software-defined networks
Authors: Lemeshko Oleksandr , Yeremenko Oleksandra 
Published: January 2018

Abstract
A two-level method of fast re-routing with load balancing in a software-defined network (SDN) is proposed. The novelty of the method consists, firstly, in the introduction of a two-level hierarchy of calculating the routing variables responsible for the formation of the primary and backup paths, and secondly, in ensuring a balanced load of the communication links of the network, which meets the requirements of the traffic engineering concept. The method provides implementation of link, node, path, and bandwidth protection schemes for fast re-routing in SDN. The separation in accordance with the interaction prediction principle along two hierarchical levels of the calculation functions of the primary (lower level) and backup (upper level) routes allowed to abandon the initial sufficiently large and nonlinear optimization problem by transiting to the iterative solution of linear optimization problems of half the dimension. The analysis of the proposed method confirmed its efficiency and effectiveness in terms of obtaining optimal solutions for ensuring balanced load of communication links and implementing the required network element protection schemes for fast re-routing in SDN.
Convolution implementation with a novel approach of DGHM multiwavelet image transform
Authors: Kovac Ondrej , Mihalik Jan , Gladisova Iveta 
Published: January 2018

Abstract
The purpose of this paper is to develop convolution implementation of DGHM (Donovan, Geronimo, Harding, Massopust) multiwavelet image transform using a new approach of ordering wavelet coefficients at the second and higher levels. Firstly, the method of implementation of one-dimensional discrete multiwavelet transform (1D DMWT) for DGHM multiwavelet using discrete convolution and scalar filters is presented. Then, convolution implementation of DGHM multiwavelet image transform by application of 1D DMWT for two dimensions (2D) in a separable way is proposed. Next, the second level of 2D DMWT is performed in three possible ways. The novelty of the proposed implementation is in reordering of L subband wavelet coefficients at the first level into one subimage. The results are evaluated as the energy ratios between the transformed images in L subband at the second level and the input original image. According to the experimental results, the developed implementation of 2D DMWT is approximately 5% more effective in energy compression than the ones most commonly mentioned in the literature. This paper shows a possibility of convolution implementation of 2D DMWT with higher energy compression.
Comparison of Measurements of Antioxidant Activity in the Selected Leafy Vegetables Depending on Extraction Solvent
Authors: Jaiswal Swapnil Ganesh , Patel Madhumita , Saxena Devesh K. , Naik Satyanarayan 
Published: January 2018

Abstract
Four leafy vegetable species, spinach (Spinacia oleracea), amaranthus (Amaranthus viridis), fenu-greek (Trigonella foenum-graecum) and bathua (Chenopodium album), were extracted with three different solvents (80% ethanol, 80% acetone and water) for maximum recovery of phenol and antioxidant compounds in the extract. The results of extraction were compared with extraction from moringa (Moringa oleifera) leaves that is known as a very rich source of antioxidants. The study showed that, it is very difficult to justify a single solvent for extraction of antioxidant compounds from different plants. Results from different solvents used for extracting the bioactive compounds mostly depend on the type of compound extracted (polar/medium polar/non-polar) present in leafy matrices. Here, 80% acetone extract showed highest total phenol content in moringa leaves but the overall antioxidant activity in the leaves of four vegetables was observed to be better after extraction with 80% ethanol. Nevertheless, in most assays, independent of solvent used for extraction, the moringa leaves were the richest source of polyphenols and antioxidants.
Nitrogen and phosphorus in cascade multi-system tropical reservoirs: water and sediment
Authors: Pompêo Marcelo , Moschini-Carlos Viviane , López-Doval Julio Cesar , Abdalla-Martins Natália , Cardoso-Silva Sheila , Freire Rogério Herlon Furtado , Beghelli Frederico Guilherme de Souza , Brandimarte Ana Lúcia , Rosa André Henrique , López Pilar 
Published: January 2018

AbstractThe aim of this research was to analyze the horizontal spatial heterogeneity of both water and superficial sediment quality among and within the reservoirs of the Cantareira System (CS), focusing on concentrations of N and P, attributed to the dumping of raw domestic sewage into water bodies, which is the main cause of water pollution in São Paulo State (Brazil). The CS is a multi-system complex composed of five interconnected reservoirs, with water transported by gravity through 48 km of tunnels and channels. From the last reservoir of the CS, with an output of 33 m3s−1, the water is conducted to a water treatment plant, producing half of the water consumed by 19 million people inhabiting São Paulo city. The upstream reservoirs are more eutrophic than the downstream ones. Data also suggest that the low phytoplankton biomass (ranging from 0.9 to 14.4 μg dm−3) is regulated by the low nutrient availability, mainly of phosphorus (TP ranging from below the detection limit, <9.0 μg dm−3, to 47.3 μg dm−3). For water, the DIN/TP ratios values range from 19 to 380. The upstream reservoirs function as nutrient accumulators and the sediment is the main compartment in which P and N are stored. Although the reservoirs are located in different river basins and are not in sequence along the same river, the results suggest a marked gradient between the reservoirs, with features similar to those of cascade reservoirs. The large volumes flowing through the canals and tunnels could explain the observed pattern. The CS reservoirs can therefore be considered multi-system reservoirs in cascade, constituting a particular case of multi-system reservoirs.
The impact of the Tri-City Ring Road on surface water of small endorheic wetlands
Authors: Staszek Wojciech , Polkowska Żaneta , Dubiella-Jackowska Aleksandra , Barańczuk Jacek 
Published: January 2018

Abstract
The paper presents the results of the impact of the Tri-City Ring Road on small endorheic catchment basins. Particular attention was paid to pollution discharged from the road to the surface water, as well as changes in hydrological conditions in the vicinity of the road. In the study, surface water samples were analysed in terms of their electrolytic conductivity, pH and content of major minerals. GIS was also used to study transformation of local catchment areas as a result of the road construction, determining their relevance to local conditions of drainage. Moreover, the main directions of transformation of surface waters of the small endorheic wetlands caused by runoff water from the ring road were discovered. Research results have shown a strong influence of the road functioning on surface water properties and changes in hydrological conditions of the studied catchment basins.
Hydrogeological investigations of river bed clogging at a river bank filtration site along the River Warta, Poland
Authors: Przybyłek Jan , Dragon Krzysztof , Kaczmarek Piotr Michał Jan 
Published: January 2018

Abstract
River bank filtration (RBF) is a system that enriches groundwater resources by induced infiltration of river water to an aquifer. Problematic during operation of RBF systems is the deterioration of infiltration effectiveness caused by river bed clogging. This situation was observed in the Krajkowo well field which supplies fresh water to the city of Poznań (Poland) during and after the long hydrological drought between the years 1989 and 1992. The present note discusses results of specific hydrogeological research which included drilling of a net of boreholes to a depth of 10 m below river bottom (for sediment sampling as well as for hydrogeological measurements), analyses of grain size distribution and relative density studies. The results obtained have allowed the recognition of the origin of the clogging processes, as well as the documentation of the clogged parts of the river bottom designated for unclogging activities.
Fourier series of functions involving higher-order ordered Bell polynomials
Authors: Kim Taekyun , Kim Dae San , Jang Gwan-Woo , Jang Lee Chae 
Published: January 2018

AbstractIn 1859, Cayley introduced the ordered Bell numbers which have been used in many problems in number theory and enumerative combinatorics. The ordered Bell polynomials were defined as a natural companion to the ordered Bell numbers (also known as the preferred arrangement numbers). In this paper, we study Fourier series of functions related to higher-order ordered Bell polynomials and derive their Fourier series expansions. In addition, we express each of them in terms of Bernoulli functions.
Extended Riemann-Liouville type fractional derivative operator with applications
Authors: Agarwal P. , Nieto Juan J. , Luo M.-J. 
Published: January 2018

Abstract
The main purpose of this paper is to introduce a class of new extended forms of the beta function, Gauss hypergeometric function and Appell-Lauricella hypergeometric functions by means of the modified Bessel function of the third kind. Some typical generating relations for these extended hypergeometric functions are obtained by defining the extension of the Riemann-Liouville fractional derivative operator. Their connections with elementary functions and Fox’s H-function are also presented.
Core-shell nanoarchitecture: Schiff-base assisted synthesis of ruthenium in clay nanotubes
Authors: Vinokurov Vladimir A. , Stavitskaya Anna V. , Chudakov Yaroslav A. , Glotov Aleksandr P. , Ivanov Evgeniy V. , Gushchin Pavel A. , Lvov Yuri M. , Maximov Anton L. , Muradov Aleksandr V. , Karakhanov Eduard A. 
Published: January 2018

Abstract
Natural halloysite clay nanotubes were used as a template for clay/Ru core-shell nanostructure synthesis. Ru-nanoparticles were produced via a ligand-assisted metal ion intercalation technique. Schiff bases formed from different organic compounds proved to be effective ligands for the metal interfacial complexation which then was converted to Ru particles. This produces a high amount of intercalated metal nanoparticles in the tube’s interior with more that 90% of the sample loaded with noble metal. Depending on the selection of organic linkers, we filled the tube’s lumen with 2 or 3.5-nm diameter Ru particles, or even larger metal clusters. Produced nanocomposites are very efficient in reactions of hydrogenation of aromatic compounds, as tested for phenol and cresols hydrogenation.
Antimicrobial Effect of Sage (Salvia officinalisL.) and Rosemary (Rosmarinus officinalisL.) Essential Oils on Microbiota of Chicken Breast
Authors: Kačániová Miroslava , Terentjeva Margarita , Kántor Attila , Tokár Marián , Puchalski Czeslaw , Ivanišová Eva 
Published: January 2018

AbstractThe aim of the study was to evaluate the antimicrobial effect of sage and rosemary essential oils (EO) on microbiota of fresh chicken breast. Sample treatments were stored without packaging, vacuum-packaged, vacuum-packaged with EDTA 1.5% v/w, sage and rosemary EO treatment 0.2% v/w. Assessment of food quality was done by anaerobic plate count (APC), andEnterobacteriaceae, lactic acid bacteria (LAB) andPseudomonasspp. counts a period of 16 days of storage at 4 ± 0.5 °C. Bacterial species were identified with a MALDI TOF MS Biotyper. Antimicrobial activity of isolates against both EO were tested. The APC varied from 2.97 log CFU/g to 6.81 log CFU/g, LAB from 2.35 log CFU/g to 3.36 log CFU/g andEnterobacteriaceaefrom 0.00 log CFU/g on day 0 to 4.77 log CFU/g with the highest counts on day 16 and in control unpackaged samples.Pseudomonasspp. was found only on days 0, 4, 8, and 12, with counts from 0.00 log CFU/g on day 16 to 2.89 log CFU/g on day 4 in control unpackaged samples. APC were represented byStaphylococcusandKocuria, LAB withLactobacillusandEnterobacteriaceaewithButtiauxella,Escherichia,Hafnia,SerratiaandYersinia. ThePseudomonasgenus was represented by ten species. The best antimicrobial effect on APC,Enterobacteriaceae, LAB andPseudomonaswas achieved by application of EO. The results suggest the potential use ofSalvia officinalisL. andRosmarinus officinalisL. EOs as natural food preservatives and potential sources of antimicrobial ingredients in the food industry.