bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Proportion of Cropland Influences Negatively the Occurrence of Breeding Birds in an Alkali Grassland Habitat in NW Serbia
Authors: Đapić Dejan , Mérő Thomas Oliver 
Published: February 2017

Abstract
Grasslands host a high diversity of plant and animal species. In Serbia, most alkali grasslands are located in the province of Vojvodina. The majority are not subject to conservation. The aim of the study was to investigate the relationship between the proportion of croplands and (1) the number of breeding species and (2) the number of breeding pairs in the alkali grasslands of the upper Mostonga River catchment basin (NW Serbia). The size of the study area was 400 ha. Birds were surveyed along seven parallel transects eight times per breeding season. Lengths of the cross sections of both grasslands and croplands were measured. The proportion of croplands per transect was calculated by dividing the total length of cross sections of croplands by the total length of transect. The relationship between the proportion of croplands and the number of breeding pairs and the number of breeding species, respectively, was studied using simple linear regression. We recorded a total of 171 nesting pairs belonging to 23 species in the alkali grassland investigated, with breeding densities between 2.2 and 10.3 pairs per 10 ha. The number of species per transect ranged between 6 and 11. The most abundant species were Skylark Alauda arvensis, Yellow Wagtail Motacilla flava and Corn Bunting Emberiza calandra. The numbers of breeding pairs (F6 = 21.761, P < 0.0001) and of breeding species (F6 = 13.758, P = 0.001) were both influenced negatively by the proportion of croplands. These findings highlight the need for coordinated conservation measures on the alkali grasslands of Vojvodina.
Recent Data on the Danube Delta (Romania) Avifauna from the 2014 and 2015 Summer Seasons
Authors: Kiss Botond J. , Alexe Vasile , Doroşencu Alexandru C. , Ceico Tănase , Kiss Nimrod B. , Marinov Mihai E. 
Published: February 2017

Abstract
A number of faunistically interesting observations related to the avifauna of the Danube Delta (Romania) are presented. In the spring of 2015, a mass mortality event with a minimum of 118 dead birds occurred in a major Dalmatian Pelican Pelecanus crispus colony in the Black Sea lagoons caused by the avian flu virus, strain H5N1. A possible hybrid between Little Egret Egretta garzetta and Western Reef Heron Egretta gularis was observed. The first nesting of Ruddy Shelduck Tadorna ferruginea in the Danube Delta was documented. Goldeneye Bucephala clangula and Smew Mergus albellus are re-colonising the areas they abandoned in the early 20th century. New data regarding the relocation of Pallas’s Gull Larus ichthyaetus colony in the Danube Delta as a result of hydromorphological changes in the bay, nesting and defence strategies against Caspian Gulls Larus cachinnans are described. Probable nesting of Citrine Wagtail Motacilla citreola in the Danube Delta was documented in 2014 for the first time.
Words and images of multilingualism: A case study of two North Korean refugees
Authors: Salo Noelle Nayoun Park , Dufva Hannele 
Published: February 2017

Abstract
The article analyses the experience of multilingualism in the South Korean context, focusing on the experiences of North Korean refugees. The research participants (N=2) are originally from North Korea, but now live in South Korea, where they face challenges in their adaptation to the new society, its linguistic landscape and its practices and positions with regard to language issues in society and in education. By combining verbal and visual means of data collection, we aim to analyse the multilingual trajectory of the research participants, their experiences of different languages and language learning and, further, the emotions that are attached to these. Our approach is socio-cognitive in that we seek to show how individual experiences intertwine with and refract the particular societal contexts and their ideologies.
Long-Term Spectroscopic Monitoring and Surveys of Early-Type Stars with and without Circumstellar Envelopes
Authors: Miroshnichenko Anatoly S. , Danford Steven , Zharikov Sergei V. , Manset Nadine , Levato Hugo , Grosso Monica , Korčáková Daniela , Kusakin Anatoly V. , Khokhlov Serik A. , Prendergast Peter 
Published: February 2017

Abstract
Ongoing studies of different groups of stars result in improving our knowledge of their fundamental parameters and evolutionary status. Also, they result in finding new phases of stellar evolution, which require theoretical explanation. At the same time, availability of large telescopes and sensitivity improvement of detectors shift the focus of many observational programs toward fainter and more distant objects. However, there are still many problems in our understanding of details of stellar evolution which can now be solved with small telescopes and observations of bright stars. Approaching these problems implies conducting surveys of large groups of stars and long-term monitoring of individual objects. In this talk, we present the results of recent international programs of photometric and spectral monitoring of several groups of early-type stars. In particular, we discuss the role of binarity in creation of the Be phenomenon and show examples of recently discovered binary systems as well as the problem of refining fundamental parameters of B and A type supergiants. Special attention will be paid to collaboration with the amateur community and use of échelle spectrographs mounted on small telescopes.
Wet Observations of PG 1159–035
Authors: Costa J. E. S. , Kepler S.O. , Winget D.E. , O’Brien M.S. , Bond H.E. , Kawaler S. D. , Dreizler S. 
Published: February 2017

AbstractPG 1159-035 has been observed with the Whole Earth Telescope on XCov3, 9, 19 and 22. In this work we present a brief summary of the campaigns.
Meet the family − the catalog of known hot subdwarf stars
Authors: Geier Stephan , Østensen Roy H. , Nemeth Peter , Heber Ulrich , Gentile Fusillo Nicola P. , Gänsicke Boris T. , Telting John H. , Green Elizabeth M. , Schaffenroth Johannes 
Published: February 2017

AbstractIn preparation for the upcoming all-sky data releases of the Gaia mission, we compiled a catalog of known hot subdwarf stars and candidates drawn from the literature and yet unpublished databases. The catalog contains 5613 unique sources and provides multi-band photometry from the ultraviolet to the far infrared, ground based proper motions, classifications based on spectroscopy and colors, published atmospheric parameters, radial velocities and light curve variability information. Using several different techniques, we removed outliers and misclassified objects. By matching this catalog with astrometric and photometric data from the Gaia mission, we will develop selection criteria to construct a homogeneous, magnitude-limited all-sky catalog of hot subdwarf stars based on Gaia data. As first application of the catalog data, we present the quantitative spectral analysis of 280 sdB and sdOB stars from the Sloan Digital Sky Survey Data Release 7. Combining our derived parameters with state-of-the-art proper motions, we performed a full kinematic analysis of our sample. This allowed us to separate the first significantly large sample of 78 sdBs and sdOBs belonging to the Galactic halo. Comparing the properties of hot subdwarfs from the disk and the halo with hot subdwarf samples from the globular clusters ω Cen and NGC 2808, we found the fraction of intermediate He-sdOBs in the field halo population to be significantly smaller than in the globular clusters.
PNN NGC 246: A Complex Photometric Behaviour That Requires Wet
Authors: Pérez J. M. González , Solheim J.-E. , Dorokhova T. N. , Dorokhov N. I. 
Published: February 2017

AbstractWe present a study over three single-site campaigns to investigate the photometric behaviour of the PNN NGC 246. We observed this object in 2000 and 2001. The analysis of the light curves indicates complex and variable temporal spectra. Using wavelet analysis we have found evidences for changes on time scales of hours in the 2000 dataset. The temporal spectra obtained during 2001 are quite different from the results of the previous year. The modulations in the light curve are more noticeable and the temporal spectra present a higher number of modulation frequencies. One peculiar characteristic is the presence of a variable harmonic structure related to one of these modulation frequencies. This complex photometric behaviour may be explained by a more complicated unresolved combination of modulation frequencies, but more likely due to a combination of pulsations of the star plus modulations related to interaction with a close companion, maybe indicating a disc. However, these characteristics cannot be confirmed from single site observations. The complex and variable behaviour of NGC 246 needs the WET co-operation in order to completely resolve its light curve.
Relation between Light Weakening and Equivalent Widths of Circumstellar NaI D-Lines in Stars with R CRB-Type Variability
Authors: Rosenbush A. E. , Bondar A. V. 
Published: February 2017

AbstractHigh-resolution spectra in the NaI D-line region for tar­get stars with R Coronae Borealis type variability are analyzed. Two types of relations between light weakening and equivalent widths of circumstellar lines are found, one of them being considerably different from a similar relation for the interstellar medium.
Motion of Test Bodies in a Quasi-Newtonian Potential. II. Comparison with Experiments
Authors: Pyragas K. , Svirskas K. 
Published: February 2017

AbstractThe paper deals with the motion of test bodies in a Quasi-Newtonian potential for which the expressions corresponding to the effects of General Relativity are found. It is impossible to choose the values of parameters of the potential which could be in a quantitative accordance with the effects predicted by General Relativity.
Photometry of Variable Stars, and System Transformability Over Long Time Intervals
Authors: Sterken C. 
Published: February 2017

Abstract
The fundamental problem of long-term photometric monitoring of variable stars and of multi-wavelength photometric campaigns is the problem of bringing the data to a common standard. Such homogenization can be achieved only when the measurements are made in photometric systems that are truly transformable. This fundamental problem is of a technical nature, and photometric observers, sometimes, are not aware of the problems. This frequently leads to over-interpretation of the data.
Flatfielding Errors in Strömvil CCD Photometry
Authors: Boyle R. P. , Janusz R. , Philip A. G. Davis , Kazlauskas A. , Laugalys V. 
Published: February 2017

Abstract
The importance of determining the error of the flat field in CCD photometry is detailed and our methods of doing this are described. We now have reached a precision of 1-1.5 % in our photometry. Color-magnitude diagrams of the open cluster M67 (ours and Laugalys et al. 2003) are compared.
Ultraviolet Passbands for a Space Multicolor Photometric System
Authors: Ambartsoumian A. R. , Mironov A. V. , Zakharov A. I. 
Published: February 2017

Abstract
The results of search for the optimal location of ultraviolet passbands for an extra-atmospheric photometric system are given. The addition of passbands near the well-known extinction bump at 218 nm to the photometric system makes it possible to determine interstellar extinction with greater precision than with the photometric system without UV passbands.
Modeling the Radial Color Profile of M31
Authors: Semionov D. , Stonkutė R. , Vansevičius V. 
Published: February 2017

Abstract
We present a preliminary study of a fragment of the radial color profile of the spiral galaxy M 31 in terms of 2-D model accounting for internal extinction in the disk. The two stellar population disk model was assumed. The old dust-free disk population is represented by the double exponential law, and the young disk population, well mixed with the dust, resides in spiral arms of various scale-heights. We find a good agreement among the radial color B-R profiles produced by this simple model and the profile measured around the spiral arm S4 of M 31.
Analysis of land stability and land-use change processes in the 19–20thcenturies: a case study in Gödöllő Hillside, Hungary
Authors: Demény Krisztina , Centeri Csaba , Szalai Dániel 
Published: February 2017

AbstractThe manuscript presents land-use change processes based on former military map analyses. Military maps were derived from the 1770s until the 1890s and later from the CORINE Land Cover map. I observed the transition direction of areal distribution of various land uses. Digitalized maps showed 19-20thcentury land-use conditions; besides them, we created a grouping system which is based on the intensity of land use. We distinguished six land-use types, ranking them according to the anthropogenic influence (1. built-up areas; 2. arable fields; 3. orchards and vineyards; 4. meadows and pastures; 5. forests; 6. wetlands).
The importance of protecting unique Romanian landscape values, illustrated by examples of problem solving in other countries
Authors: Henning Anna Imola 
Published: February 2017

AbstractNature and landscape protection has gained importance over the past 50 years from the economic, cultural, health, and recreational point of view. The process is closely linked to our civilizational endeavours (such as economic interests, pollution, urbanization, super-intensive agriculture, etc.) that threaten our natural values as well as to the ever more frequent environmental disasters resulting from the above. The continued destruction of our natural and landscape values is not reversible. The aim of this article is to determine the important and urgent professional tasks regarding exploring, documenting, safeguarding, and raising awareness of values. My work wishes to draw attention to the landscape values and deficiencies of Transylvania, working with examples from other countries; by using Romanian examples, I also wish to support my assumption according to which if we want to preserve unique landscapes on the European level we need to act quickly.
Varietal performance and correlation of okra pod yield and yield components
Authors: Aminu Dattijo , Bello Omolaran Bashir , Gambo Babagana Abba , Azeez Alafe Hakeem , Agbolade Oludare James , Iliyasu Ali , Abdulhamid Usman Abdulrahman 
Published: February 2017

AbstractField irrigation experiments were conducted to assess the varietal performance and correlation of pod yield and yield attributes under irrigation at the Teaching and Research Farm, University of Maiduguri, Nigeria, during the 2015 and 2016 dry seasons. The results revealed that the most outstanding for fresh pod yield per plant were okra cultivar Kwadag Y’ar gagure Salkade, and Kwadam, in descending order, with yield ranging from 580.38 to 622.67 g, while the Composite cultivar had the lowest value of pod yield of 428.62 g over the two years. The greatest average values for the number of pods per plant and the number of primary branches per plant were observed for Salkade and Y’ar gagure, respectively. Highest fresh pod length and fresh pod diameter were also exhibited for Salkade and Kwadag. The genotypic coefficient of variation was higher than the phenotypic variation for the entire yield-contributing characters. Days to 50% flowering were positive and highly significant differences associated with plant height, number of pods per plant, and fresh weight per pod could be observed. Path coefficient analysis showed that the number of pods per plant exhibited positive and direct influence on the pod yield across the studied years. Indirect influence of other yield components through this character also contributed mainly towards pod yield. Therefore, days to 50% flowering, plant height, pod length, number of pods per plant, pod diameter, number of primary branches per plant, and fresh weight per pod could be taken into consideration for the selection and development of high pod-yielding varieties in okra.
Khitan Perempuan: Who Speaks for the Indonesian Female Circumcision?
Authors: Bočko Vesna 
Published: February 2017

AbstractThroughout the paper the author focuses on the ritual of female circumcision in Indonesian Java, more specifically in the city of Yogyakarta. By the help of fieldwork and academic literature she examines this not merely taboo but also legally forbidden practice in the biggest Muslim country in the world. Female circumcision (FC) in Java and Indonesia in general is considered as a daily practice going hand in hand with tradition. The author puts to the foreground the form of circumcision performed in Yogyakarta and its classification as a symbolic and less invasive one. She explains the history of this ritual in the archipelago, national and international regulations and guidelines, analyzes the role of different authorities (state, religious leaders and NGO’s) on the persistence/abundance of FC and as a consequence its ‘globalized’ form (medicalizetion of FC). The author learns and emphasizes that this is a practice taken for granted, whose origin is little known to the interlocutors (the executors and participants of the ritual) and that the existing literature on the subject is insufficient. For such research a careful approach is of key importance and the author frequently utilizes the help of cultural relativism, reductionism and the use of narrative.
Estimation of The Willingness-to-Pay for Preserving The Football Arena in Gdansk
Authors: Zawadzki Krystian 
Published: February 2017

AbstractThe European Football Championship (Euro 2012) organized in Poland became the pretext for a number of infrastructural changes. A high level of expenditure makes the Polish event the most expensive among events of this magnitude. The fact that these changes were 100% financed by public funds raises the question of whether these funds were used in a substantiated way. Therefore, the aim of this study is to estimate the willingness-to-pay (WTP) among the community of the Pomeranian region, in connection with the construction of the stadium in Gdansk. A survey conducted among 299 respondents was the source of information. The results of the study show that the average value of WTP for the whole sample was 6.71 EUR2012, while the aggregate value for the whole region was 15.4 million EUR2012. The regression analysis showed that the level of WTP is determined in particular by income levels. The results thus confirm the existence of intangible benefits associated with the constructed facilities. However, it should be noted that the importance of these benefits is insignificant and does not compensate for the massive expenditure from public sources.
Short-Term Currency in Circulation Forecasting for Monetary Policy Purposes – The Case of Poland
Authors: Koziński Witold , Świst Tomasz 
Published: February 2017

Abstract
One of the most significant factors which influences the level of banking sector liquidity is Currency in Circulation. Although the central bank is in charge of distribution of the currency it can’t assess the demand for the currency, as that demand is generated by the customers of commercial banks. Therefore, the amount of Currency in Circulation has to be modelled and forecasted. This paper introduces ARIMA(2,1) and SARIMA(2,1)(5,0) models with dummy variables and discusses its applicability to the forecasting of Currency in Circulation. The forecasting performance of these models is compared. The results indicate that the performance of SARIMA(2,1)(5,0) is better and that both models might be applied for monetary policy purposes as supportive tools for banking sector liquidity forecasting.
Internal Funding in The Dairy Industry Companies in The Podlaskie Province in 2010-2012
Authors: Łuczaj Jolanta 
Published: February 2017

Abstract
Selection of appropriate funding sources for company assets is one of the most important decisions taken by a company. The right capital structure and in particular the relevant relationship between own and external sources of financing have a significant impact on the financial results. The purpose of this paper is to analyze the use of own resources in the funding of assets in the dairy industry in the Podlaskie Province in 2010-2012. The information included in the financial statements of the surveyed companies, as well as secondary data included in the studies of the CSO, was used in the paper.
Art as an Investment in Poland – The First 20 Years after The Collapse of the Central Planning Economy
Authors: Potocki Tomasz , Rogozińska Anna 
Published: February 2017

Abstract
The article aims at answering the following research question: is the Polish art market mature enough to look at art investment as an important element of portfolio diversification? To provide an answer, the Authors analyzed auctions in Poland from the period 1991-2010, which were published by Art&Business magazine. The number of the analyzed records amounted to 28951. The conclusions may be valuable for researchers specializing in art economics, investors dealing with wealth transfer, financial advisors offering financial products as well as for policy makers responsible for providing institutional infrastructure essential for development of the Polish art market.
The Role of A Company’s Internal Control System in Fraud Prevention
Authors: Dimitrijevic Dragomir , Milovanovic Vesna , Stancic Vladimir 
Published: February 2017

Abstract
The emergence of internal control over specific segments of activities has been associated with management needs for evaluation of the consistency between the actual situation and development targets. Monitoring activities should enable detection and timely reaction to possible target-related deviations. While responding to complex market needs, companies are exposed to numerous internal and external influences, some of which may cause significant damage. Companies have realized that it is safer and cheaper to establish their own internal control systems in order to prevent such influences. The aim of this work is to show how the overall quality of control and company performance is improved through implementation of preventive methods by internal controls, and to indicate that a developed system of internal control represents a protective barrier against various kinds of data manipulation and fraud inside the companies. Special attention was paid to fraud in financial statements since it can cause the most serious damage leading to instability of the economic-financial environment.
Basel’s Forgotten Pillar: The Myth of Market Discipline on the Forefront of Basel III
Authors: Benli Vahit Ferhan 
Published: February 2017

AbstractAlthough Basel II fortified the first two pillars with market transparency enhancing Pillar III disclosures and encouraged the usage of major Credit Rating Agencies (CRAs) such as Moody’s, Standard and Poor’s, and Fitch as quasi governmental authorities to overcome asymmetric informational problems on risk and capital adequacy fronts of the global financial system, the recent global financial crisis has proven just the opposite. The banks and regulators were not in a position to truly assess the risk and capital adequacy frameworks of the global and domestic financial institutions based on the assessments of the rating agencies. To overcome the problem of informational asymmetry for the market participants, the Basel Committee on Banking Supervision set out new proposals for enhanced Pillar III disclosures in the areas of credit risks and capital reporting standards on the forefront of Basel III that would come into effect on April 1, 2016. This paper is a critical evaluation of the new reporting proposals of BCBS within the critical role of the credit rating agencies.