bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rainfall and runoff regime trends in mountain catchments (Case study area: the upper Hron River basin, Slovakia)
Authors: Blahušiaková Andrea , Matoušková Milada 
Published: June 2015

Abstract
This paper presents an analysis of trends and causes of changes of selected hydroclimatic variables influencing the runoff regime in the upper Hron River basin (Slovakia). Different methods for identifying trends in data series are evaluated and include: simple mass curve analysis, linear regression, frequency analysis of flood events, use of the Indicators of Hydrological Alteration software, and the Mann-Kendall test. Analyses are performed for data from two periods (1931-2010 and 1961-2010). The changes in runoff are significant, especially in terms of lower QMax and 75 percentile values. This fact is also confirmed by the lower frequency and extremity of flood events. The 1980s are considered a turning point in the development of all hydroclimatic variables. The Mann-Kendall test shows a significant decrease in runoff in the winter period. The main causes of runoff decline are: the considerable increase in air temperature, the decrease in snow cover depth and changes in seasonal distribution of precipitation amounts.
Regional Identification in Present Day Romania. The Case Study of Suceava County
Authors: Colăcel Onoriu 
Published: June 2015

Abstract
In the aftermath of the 1989 Revolution, Romanian mainstream culture set out to reclaim the pre- Communist legacy of the country. The ‘golden age’ of interwar was the obvious choice; both popular and academic debates on Romanian identity looked back at the time of the so-called Greater Romania. The present day Suceava County is singular in its regional identification with the former Habsburg Duchy of Bukovina. The Austrian occupation of the Northern part of the historical principality of Moldova between 1775 and 1918 provides an identity building opportunity to the locals who seem to find fault with Moldovan regional designation. Bukovina comes into the picture of the hospitality industry mostly, yet there is more to the Bukovinian identification. The literature published by Suceava County Council appears to employ a marketing strategy for the same hospitality industry that dwells on what is, essentially, the colonial past of the area. At odds with Romanian self-identification, the narrative of Bukovina underpins the discourse of local government as a means to foster brand awareness for the entire county, although Southern Suceava was never incorporated into the Habsburg/Austro- Hungarian Empire
Crystal structure of ethyl 4-(5-allyl-6-methyl-2-phenylpyrimidin-4-ylamino) benzoate, C23H23N3O2
Authors: Lu Zai-Sheng , Zhu Guang-Zhou 
Published: June 2015

Abstract C23H23N3O2, triclinic, P1̅ (no. 2), a = 8.244(5) Å, b = 9.998(6) Å, c = 12.618(8) Å, ɑ = 76.654(7)°, β = 84.834(7)°, γ = 81.708(7)°, V = 999.6 Å3, Z = 2, Rgt(F) = 0.0469, wRref(F2) = 0.1473, T = 296 K.
Examining the Export-led Growth Hypothesis: The case of Croatia
Authors: Bilas Vlatka , Bošnjak Mile , Franc Sanja 
Published: June 2015

Abstract
This paper examines the relationship between gross domestic product and exports of goods and services in Croatia between 1996 and 2012. The research results confirmed unidirectional Granger causality from the exports of goods and services to gross domestic product. Following the Engle-Granger approach to cointegration, long-term equilibrium as well as short-term correlation between the observed variables was identified. Exports of goods and services and gross domestic product (GDP) in Croatia move together. If the two observed variables move away from equilibrium, they will return to their long-term equilibrium state at a velocity of 24.46% in the subsequent period. In accordance with the results, we found evidence supporting the export-led growth hypothesis in Croatia. As the outcomes indicated, to recover the economy, Croatia should put more emphasis on the development of exporting sectors.
Justifications of national gambling policies in France and Finland
Authors: Marionneau Virve 
Published: June 2015

Aims The principles of free trade and free circulation of services within the European Union have created pressures to make the strictly controlled European gambling markets more open. According to the Court of Justice of the European Union, restrictions on gambling are only allowed if they are justified in admissible terms of consumer protection, prevention of criminal activity and protection of public order. This study compares the gambling laws of two European societies, France and Finland, to analyse how their legal frames of gambling have been adjusted to these principles. Design The data consists of up-to-date legislation on gambling in Finland and France. A qualitative analysis was conducted to study whether new ways of justifying have been included in legislative texts and if these are substantiated by measures related to consumer protection or crime prevention. Results France has mainly justified its restrictive policies on gambling in terms of preventing criminal activities while the Finnish legislation highlights the charitable causes funded by gambling proceeds, a claim not accepted by the Court of Justice of the European Union. Consumer protection is increasingly stressed in both countries, and the range of rationales has also grown notably since 2007. Conclusion While the vocabularies of justification accepted by the CJEU have expanded since 2007, these have not been substantiated by many new legislative measures. This is not attributed to political ill will but rather to the difficulty of changing existing legislative traditions.
Electromagnetic pulses produced by expanding laser-produced Au plasma
Authors: De Marco Massimo , Cikhardt Jakub , Krása Josef , Velyhan Andriy , Pfeifer Miroslav , Krouský Eduard , Klír Daniel , Řezáč Karel , Limpouch Jiři , Margarone Daniele , Ullschmied Jiři 
Published: June 2015

Abstract
The interaction of an intense laser pulse with a solid target produces large number of fast free electrons. This emission gives rise to two distinct sources of the electromagnetic pulse (EMP): the pulsed return current through the holder of the target and the outflow of electrons into the vacuum. A relation between the characteristics of laser-produced plasma, the target return current and the EMP emission are presented in the case of a massive Au target irradiated with the intensity of up to 3 × 1016 W/cm2. The emission of the EMP was recorded using a 12 cm diameter Moebius loop antennas, and the target return current was measured using a new type of inductive target probe (T-probe). The simultaneous use of the inductive target probe and the Moebius loop antenna represents a new useful way of diagnosing the laser–matter interaction, which was employed to distinguish between laser-generated ion sources driven by low and high contrast laser pulses.
Recent ion measurements within the modified DPF-1000U facility
Authors: Kwiatkowski Roch , Czaus Krzysztof , Skladnik-Sadowska Elzbieta , Sadowski Marek J. , Zaloga Dobromil R. , Paduch Marian , Zielinska Ewa 
Published: June 2015

Abstract
In this note we describe measurements of ion beams emitted along the z-axis of the DPF-1000U facility operated at 23 kV, 334 kJ, and with the initial deuterium pressure of 1.6–2 hPa. The DPF-1000U device was recently renewed and equipped with a dynamic gas-puff valve placed inside the inner electrode. The investigated ions were recorded by means of ion pinhole cameras equipped with solid state nuclear track detectors of the PM-355® (PADC) type. The energy spectra of ions were determined using a Thomson spectrometer placed on the symmetry axis at a distance of 160 cm from the electrodes outlets. The ion images recorded during discharges performed under different experimental conditions show that the ion beams have a complex structure, usually in the form of a central bunch and an annular stream composed of many micro-beams. Energies of the registered deuterons have been in the range of 30–700 keV, while the fast protons (which originated from the hydrogen remnants) had energies in the range of 300–850 keV.
CFD modeling of passive autocatalytic recombiners*
Authors: Orszulik Magdalena , Fic Adam , Bury Tomasz 
Published: June 2015

Abstract
This study deals with numerical modeling of passive autocatalytic hydrogen recombiners (PARs). Such devices are installed within containments of many nuclear reactors in order to remove hydrogen and convert it to steam. The main purpose of this work is to develop a numerical model of passive autocatalytic recombiner (PAR) using the commercial computational fluid dynamics (CFD) software ANSYS-FLUENT and tuning the model using experimental results. The REKO 3 experiment was used for this purpose. Experiment was made in the Institute for Safety Research and Reactor Technology in Julich (Germany). It has been performed for different hydrogen concentrations, different flow rates, the presence of steam, and different initial temperatures of the inlet mixture. The model of this experimental recombiner was elaborated within the framework of this work. The influence of mesh, gas thermal conductivity coefficient, mass diffusivity coefficients, and turbulence model was investigated. The best results with a good agreement with REKO 3 data were received for k-ɛ model of turbulence, gas thermal conductivity dependent on the temperature and mass diffusivity coefficients taken from CHEMKIN program. The validated model of the PAR was next implemented into simple two-dimensional simulations of hydrogen behavior within a subcompartment of a containment building.
Ion acceleration from intense laser-generated plasma: methods, diagnostics and possible applications
Authors: Torrisi Lorenzo 
Published: June 2015

Abstract
Many parameters of non-equilibrium plasma generated by high intensity and fast lasers depend on the pulse intensity and the laser wavelength. In conditions favourable for the target normal sheath acceleration (TNSA) regime the ion acceleration from the rear side of the target can be enhanced by increasing the thin foil absorbance through the use of nanoparticles and nanostructures promoting the surface plasmon resonance effect. In conditions favourable for the backward plasma acceleration (BPA) regime, when thick targets are used, a special role is played by the laser focal position with respect to the target surface, a proper choice of which may result in induced self-focusing effects and non-linear acceleration enhancement. SiC detectors employed in the time-of-flight (TOF) configuration and a Thomson parabola spectrometer permit on-line diagnostics of the ion streams emitted at high kinetic energies. The target composition and geometry, apart from the laser parameters and to the irradiation conditions, allow further control of the plasma characteristics and can be varied by using advanced targets to reach the maximum ion acceleration. Measurements using advanced targets with enhanced the laser absorption effect in thin films are presented. Applications of accelerated ions in the field of ion source, hadrontherapy and nuclear physics are discussed.
Comparison of optical spectra recorded during DPF-1000U plasma experiments with gas-puffing
Authors: Zaloga Dobromil R. , Skladnik-Sadowska Elzbieta , Kubkowska Monika , Ladygina Marina S. , Malinowski Karol , Kwiatkowski Roch , Sadowski Marek J. , Paduch Marian , Zielinska Ewa , Makhlaj Vadym A. 
Published: June 2015

Abstract
The results are presented of the optical spectra measurements for free plasma streams generated with the use of the modified DPF-1000U machine. This facility was recently equipped with a gas injection system (the so-called gas-puff) placed on the symmetry axis behind the central opening in the inner electrode. The DPF-1000U experimental chamber was filled up with pure deuterium at the initial pressure of 1.6 or 2.4 mbar. Additionally, when the use was made of the gas-puff system about 1 cm3 of pure deuterium was injected at the pressure of 2 bars. The gas injection was initiated 1.5 or 2 ms before the triggering of the main discharge. The investigated plasma discharges were powered from a condenser bank charged initially to 23 kV (corresponding to the energy of 352 kJ), and the maximum discharge current amounted to about 1.8 MA. In order to investigate properties of a dense plasma column formed during DPF-1000U discharges the use was made of the optical emission spectroscopy. The optical spectra were recorded along the line of sight perpendicular to the vacuum chamber, using a Mechelle®900 spectrometer. The recent analysis of all the recorded spectra made it possible to compare the temporal changes in the electron density of a freely propagating plasma stream for discharges without and with the gas-puffing. Using this data an appropriate mode of operation of the DPF-1000U facility could be determined.
Effect of nitrogen fertilisation of Galega orientalis Lam. on the yield and content K, Na, Ca and Mg in the plant and soil
Authors: Symanowicz Barbara , Kalembasa Stanisław , Jaremko Dawid , Niedbała Mateusz 
Published: June 2015

Abstract
The aim of this study is to determine the response of biomass yield and the content of K, Na, Ca and Mg in the eastern galega and soil under the influence of nitrogen in the form of (15NH4)2SO4. Three-year field experiment (2005–2007) was carried out on experimental plots belonging to the University of Natural Sciences - Humanities in Siedlce (52°17’N, 22°28’E). Nitrogen 15N was applied as ammonium sulphate at a dose of early spring 1.66 g N.m−2. In each year of the study were collected three cuts of eastern galega budding phase. Shown yield of dry weight of the test plant. The content of K, Na, Ca and Mg in the eastern galega and soil were determined by ICP-AES emission spectrometer with inductively coupled plasma. Subsequently, the uptake and marked weight ratios of macronutrients.
Under the influence of nitrogen in the form of ammonium sulphate, dry matter yield of eastern galega (average of 3 years of research and 3 swaths) increased by 29.7%. Fertilisation with nitrogen contributed to the reduction of K content, increasing the content of Na, Ca, Mg, in a test plant and to increase the pick, all the elements analysed with the yield of biomass. Nitrogen fertilisation resulted in a reduction in the quantitative ratios K: (Ca + Mg), (K + Na) : (Ca + Mg), K: Ca, K : Mg and the total content of the analysed elements in the soil (average of the years).
Effect of different glyphosate salts on phosphodiesterase and phosphotriesterase activities in soil with reference to ecological importance of soil pollution. A laboratory experiment
Authors: Płatkowski Maciej , Telesiński Arkadiusz 
Published: June 2015

Abstract
The aim of this study is to determine the effect of the two glyphosate salts: isopropylamine and potassium (contained in preparations Roundup) on the activity of phosphodiesterase and phosphotriesterase in the soil. The experiment was carried out in the laboratory conditions on two soil types: loamy sand (Corg 8.70 g·kg−1, pHKCl 6.39) and sandy loam (Corg 10.90 g·kg−1, pHKCl 6.81). Two glyphosate salts (isopropylamine and potassium) in dosage of 0, 1 and 100 mg·kg−1 were applicate into soils. Phosphodiesterase and phospotriesterase activities in soils were determined spectrophotometrically on days 1, 7, 14, 28, 56 and 112. The obtained results were converted with respect to the enzyme activities in the control soil (assuming it to be 100%) and given as percent of inhibition. The results were shown as environmental danger zones graphs. Obtained results showed that glyphosate salts application has primarily resulted in inhibition of phosphodiesterase activity, and stimulation of phosphotriesterase activity in soils. Soil type and kind of glyphosate salt affect the interaction of herbicide with phosphodiesterase and phosphotriesterase activities. The observed changes in the phosphodiesterase and phosphotriesterase activities caused by the addition of both glyphosate salts were located on environmental danger zones graphs in the range of negligible or acceptable values, which may indicate a low impact of herbicide on measured enzymes.
Accelerated aging investigation of high voltage EPDM/silica composite insulators
Authors: Khattak Abraiz , Amin Muhammad 
Published: June 2015

Abstract
Ethylene-propylene-diene-monomer (EPDM) is one of the most frequently used outdoor insulating materials. Like other polymeric materials, EPDM and its composites also degrade in outdoor applications. For evaluation of aging of insulating materials, accelerated multistress aging/weathering is an efficient method. In the current paper, comparative multistress aging performance investigation of neat EPDM (NE), EPDM with 20% microsilica (microcomposite, EMC), EPDM with 5% nanosilica (nanocomposite, ENC) and EPDM 20% microsilica 5% nanosilica (hybrid composite, EHC) is presented. Materials prepared according to ASTM D3182-07 were subjected to uniform ultraviolet (UV) radiation, heat, humidity, salt fog and acid rain at 2.5 kV voltage for 5000 h in a specially fabricated weathering chamber. For timely analysis of the aged materials, Fourier transform infrared (FTIR) spectroscopy, Swedish Transmission Research Institute (STRI) hydrophobicity classification and scanning electron microscopy (SEM) were used along with the critical visual inspection. Increasing discoloration was found in all materials which was proportional to% wt of the filler in composites. Improved hydrophobicity and better surface smoothness was recorded in composites as compared to NE, which was higher in the case of the microcomposite and hybrid composite. FTIR results showed least reduction in hydrocarbon bonds and lowest variation in chalking index in the case of the microcomposite.
DP5: A Private Presence Service
Authors: Borisov Nikita , Danezis George , Goldberg Ian 
Published: June 2015

Abstract
Users of social applications like to be notified when their friends are online. Typically, this is done by a central server keeping track of who is online and offline, as well as of all of the users’ “buddy lists”, which contain sensitive information. We present DP5, a cryptographic service that implements online presence indication in a privacy-friendly way. DP5 allows clients to register their online presence and query the presence of their list of friends while keeping this list secret. Besides presence, high-integrity status updates are supported, to facilitate key update and rendezvous protocols. While infrastructure services are required for DP5 to operate, they are designed to not require any long-term secrets and provide perfect forward secrecy in case of compromise. We provide security arguments for the indistinguishability properties of the protocol, as well as an evaluation of its scalability and performance.
Accountable Metadata-Hiding Escrow: A Group Signature Case Study
Authors: Kohlweiss Markulf , Miers Ian 
Published: June 2015

Abstract
A common approach to demands for lawful access to encrypted data is to allow a trusted third party (TTP) to gain access to private data. However, there is no way to verify that this trust is well placed as the TTP may open all messages indiscriminately. Moreover, existing approaches do not scale well when, in addition to the content of the conversation, one wishes to hide one’s identity. Given the importance of metadata this is a major problem. We propose a new approach in which users can retroactively verify cryptographically whether they were wiretapped. As a case study, we propose a new signature scheme that can act as an accountable replacement for group signatures, accountable forward and backward tracing signatures.
A Practical Set-Membership Proof for Privacy-Preserving NFC Mobile Ticketing
Authors: Arfaoui Ghada , Lalande Jean-François , Traoré Jacques , Desmoulins Nicolas , Berthomé Pascal , Gharout Saïd 
Published: June 2015

Abstract
To ensure the privacy of users in transport systems, researchers are working on new protocols providing the best security guarantees while respecting functional requirements of transport operators. In this paper1, we design a secure NFC m-ticketing protocol for public transport that preserves users’ anonymity and prevents transport operators from tracing their customers’ trips. To this end, we introduce a new practical set-membership proof that does not require provers nor verifiers (but in a specific scenario for verifiers) to perform pairing computations. It is therefore particularly suitable for our (ticketing) setting where provers hold SIM/UICC cards that do not support such costly computations. We also propose several optimizations of Boneh-Boyen type signature schemes, which are of independent interest, increasing their performance and efficiency during NFC transactions. Our m-ticketing protocol offers greater flexibility compared to previous solutions as it enables the post-payment and the off-line validation of m-tickets. By implementing a prototype using a standard NFC SIM card, we show that it fulfils the stringent functional requirement imposed by transport operators whilst using strong security parameters. In particular, a validation can be completed in 184.25ms when the mobile is switched on, and in 266.52ms when the mobile is switched off or its battery is flat.
Constructing elastic distinguishability metrics for location privacy
Authors: Chatzikokolakis Konstantinos , Palamidessi Catuscia , Stronati Marco 
Published: June 2015

Abstract
With the increasing popularity of hand-held devices, location-based applications and services have access to accurate and real-time location information, raising serious privacy concerns for their users. The recently introduced notion of geo-indistinguishability tries to address this problem by adapting the well-known concept of differential privacy to the area of location-based systems. Although geo-indistinguishability presents various appealing aspects, it has the problem of treating space in a uniform way, imposing the addition of the same amount of noise everywhere on the map. In this paper we propose a novel elastic distinguishability metric that warps the geometrical distance, capturing the different degrees of density of each area. As a consequence, the obtained mechanism adapts the level of noise while achieving the same degree of privacy everywhere. We also show how such an elastic metric can easily incorporate the concept of a “geographic fence” that is commonly employed to protect the highly recurrent locations of a user, such as his home or work. We perform an extensive evaluation of our technique by building an elastic metric for Paris’ wide metropolitan area, using semantic information from the OpenStreetMap database. We compare the resulting mechanism against the Planar Laplace mechanism satisfying standard geo-indistinguishability, using two real-world datasets from the Gowalla and Brightkite location-based social networks. The results show that the elastic mechanism adapts well to the semantics of each area, adjusting the noise as we move outside the city center, hence offering better overall privacy.1