bluuebunny/crossref_metadata_2025_split huggingface dataset:
Foretičtí roztoči lýkožrouta smrkového Ips duplicatus (Coleoptera: Curculionidae: Scolytinae) z oblasti recentní gradace ve střední Evropě / Phoretic mites (Mesostigmata) on double-spined spruce bark beetle Ips duplicatus (Coleoptera: Curculionidae: Scolytinae) in recent oubreak area in the central Europe
Authors: Čejka Martin , Holuša Jaroslav 
Published: May 2015

Abstract
Phoretic mites can be predators of eggs and larvae of bark beetles. Phoretic mites associated with Ips duplicatus have not been systematically studied so far. Therefore, we studied the spectrum and abundance of phoretic mites associated with this species in the eastern part of the Czech Republic. Beetles were sampled with pheromone traps. In total, 500 beettle individuals were captured. From their bodies and the sediment of collecting bottles, 292 mite individuals were collected, and three species of phoretic mites (Mesostigmata) were identified. The most numerous species was Dendrolaelaps quadrisetus. This mite species as well as the other identified species Uroobovella ipidis were not known as phoretic on I. duplicatus before. The second most numerous species was Trichouropoda polytricha known from galleries of I. duplicatus. Total abundance and the number of phoretic mites per beetle as well as the species spectrum significantly differed between localities. The values of abundance and species spectrum were similar to I. typographus
Importance of automatic threshold for image segmentation for accurate measurement of fine roots of woody plants / Význam automatického prahovania na obrazovú segmentáciu pre presné merania jemných koreňov drevín
Authors: Surový Peter , Dinis Cati , Marušák Róbert , Ribeiro Nuno de Almeida 
Published: May 2015

Abstract
The fine roots are considered the key organs for plant survival, growth and productivity. Measurement of fine roots variables is easily and conveniently achieved by means of digital image. The descriptive variables like root area, surface, total length and diameter distribution may be obtained from the image. Analysis of digital image consists from several steps, each of them represents potential source of the error. In this article we want to evaluate the automatic thresholding and its impact on principal variables obtainable from digital scans of the fine roots. We compare 16 different thresholding methods and compare them with the human processed binary images of roots of cork oak (Quercus suber L.). We found some of the thresholding methods perform significantly better than others in the estimation of total projected area however the length estimation error points out a little different order of accuracy
The assessment of forest parameters by combined LiDAR and satellite data over Alpine regions – EUFODOS Implementation in Austria / Hodnotenie parametrov lesa kombináciou LIDAR-u a satelitných údajov v alpských regiónoch – implementácia systému EUFODOS v Rakúsku
Authors: Schardt Mathias , Granica Klaus , Hirschmugl Manuela , Deutscher Janik , Mollatz Michael , Steinegger Martin , Gallaun Heinz , Wimmer Andreas , Linser Stefanie 
Published: May 2015

Abstract
Regional authorities require detailed and georeferenced information on the status of forests to ensure a sustainable forest management. One of the objectives in the FP7 project EUFODOS was the development of an operational service based on airborne laser scanning and satellite data in order to derive forest parameters relevant for the management of protective forests in the Alps. The estimated parameters are forest type, stem number, height of upper layer, mean height and timber volume. RapidEye imagery was used to derive coniferous and broadleaf forest classes using a logistic regression-based method. After the generation of a normalised Digital Surface Model and a forest mask, the forest area was segmented into homogeneous polygons, tree tops were detected, and various forest parameters are calculated. The accuracy of such an assessment was comparable with some previous studies, and the R-square between the estimated and measured values was 0.69 for tree top detection, 0.82 for upper height and 0.84 for mean height. For the calculation of timber volume, the R² for modelling is 0.82, for validation with an independent set of field plots, the R² is 0.71. The results have been successfully integrated into the regional forestry GIS and are used in forest management.
Decision support systems in Slovak forestry planning: a review / Systémy na podporu rozhodovania v lesníckom plánovaní na Slovensku: prehľad
Authors: Tuček Ján , Sedmák Róbert , Majlingová Andrea , Sedliak Maroš , Marques Susete 
Published: May 2015

Abstract
Project COST Action FP 0804 - FORSYS summarizes European experiences in developing and applying decision support systems for forest management. This paper introduces FORSYS methodology for the classification of current forest management problems and for the description of existing decision support systems. The paper identifies the general forestry planning problems that need to be solved in Slovakia, lists the DSS tools available in Slovakia and evaluate their ability for addressing the identified problems. Finally, the research needs and gaps in this field were identified. A comparison of the situation regarding decision support in Slovakia and both in Europe and neighbouring countries (Austria, Hungary) is introduced in order to justify the identified needs. The paper is focused on the overview of models, methods and knowledge management techniques which are available in Slovakia now. We found out that the Slovak decision support research follows the state in Europe with a significant time delay and a lack of adequate instruments for addressing the contemporary planning problems exists. Consequently, there is a strong need for the development and application of computer-based tools to support decision-making problems in forest management.
The ‘Tisovik’ reserve of Silver fir in the Belarusian national park ‘Belavezhskaya Pushcha’
Authors: Korczyk Adolf F. 
Published: May 2015

Abstract
Silver firs (Abies alba Mill.) of natural origin occurring in the Belorussian part of the Białowieża Primeval Forest constitute an enclave situated 120 km to the north-east of a dense fir stand in the Polish part of the forest. In order to protect this population a reserve called ‘Tisovik’ was established. In this study, plant communities occurring in the ‘Tisovik’ reserve were described and its fir population (20 trees) was characterised in terms of its genetic structure.
The influence of stand canopy openness on the growth of common yew (Taxus baccata L.)
Authors: Niemczyk Marzena , Żółciak Anna , Piotr Wrzesiński 
Published: May 2015

Abstract
The aim of this study was to evaluate the development of common yew, Taxus baccata L., with respect to canopy openness. The plants were growing in ex-situ conservation plantations (established in 2008) in the understory of different tree species. Eleven forest plantations belonging to the following five forest districts were inventoried: Rokita, Baligród, Kołaczyce, Międzylesie and Henryków. In each plantation, the height and height increment of 200 yews were measured and gap light transmission indices were determined.
The canopy species affecting yew growth most significantly were oak (Quercus sp.) and Scots pine (Pinus sylvestris L.), followed by Norway spruce (Picea abies Karst.), silver fir (Abies alba L.) and European beech (Fagus sylvatica L.). The most favorable development of yew occurred at 30% canopy openness. An increasing light transmission index correlated with a decrease in the proportion of treelike yews. An insufficient amount of light resulted in a low height increment of yews growing under the canopy and an extended period of direct competition of yews with herbaceous species.
The Borki Primeval Forest as an important forest bird area
Authors: Rąkowski Grzegorz 
Published: May 2015

Abstract
This paper presents an overview of bird research carried out in the Borki Primeval Forest during the last 30 years. The Borki Primeval Forest can be considered as one of the most important forest bird sites in Poland. Its avifauna comprises 139 breeding species, including 11 rare and endangered species listed in the Polish Red Data Book of Animals as well as 30 species listed in Annex I of the EU Birds Directive. Despite its relatively small area, the Borki Primeval Forest holds at least 1% of Polish breeding population of as many as 12 bird species. For seven out of these species it is one of the most important breeding sites in the country. The avifauna of the Borki Primeval Forest consists mostly of typical forest birds including 24 indicator species which are associated with natural forests. The richness of bird species in the Borki Primeval Forest and the abundance of several valuable groups of breeding species are the result of a high landscape and habitat diversity as well as a relatively small anthropopression combined with a high degree of naturalness of forest stands.
Quantity of Hydrophobic Functional CH-Groups – Decisive for Soil Water Repellency Caused by Digestate Amendment
Authors: Voelkner Amrei , Holthusen Dörthe , Ellerbrock Ruth H. , Horn Rainer 
Published: May 2015

Abstract
Anaerobic digestates are used as organic fertilizers; however, they are suspected to interfere negatively with soils. To investigate the relevance of the anaerobic digestates composition on potential wettability and contact angle of the soil, we mixed in a laboratory experiment 30 m³ ha-1 of anaerobic digestates derived from mechanically pre-treated substrates from maize and sugar beet with a homogenized Cambic Luvisol. Fourier transform infrared-spectra and diffuse reflectance infrared Fourier transform-spectra of particle intact and finely ground soilanaerobic digestates-mixtures were analyzed to determine the quantities of hydrophobic functional groups in the soil-anaerobic digestates-mixtures that are used here as an indicator for the potential hydrophobicity. The anaerobic digestates application increased the amount of hydrophobic functional groups of the mixtures and reduced the wettability of the soil. However, for intact particle samples an up to threefold higher amount of hydrophobic groups was found as compared to the finely ground ones, indicating a dilution effect of mechanical grinding on the effectivity of the organic matter that is presumably located as a coating on mineral soil particles. For the particle intact samples, the intensity of hydrophobic functional groups bands denoting hydrophobic brickstones in organic matter is indicative for the actual wettability of the soil-anaerobic digestates-mixtures.
Thermal Effects of Laser Irradiation on Maize Seeds
Authors: Hernández Aguilar Claudia , Domínguez Pacheco Flavio Arturo , Cruz Orea Alfredo , Tsonchev Rumen Ivanov 
Published: May 2015

Abstract
It is important to know the temperature changes in seeds that have been irradiated with laser light because this could have substantial practical and theoretical importance. Thus, the thermal effects of low intensity laser irradiation on seeds was studied, showing variation of temperature produced by laser light applied during 60 s on two maize seed genotypes, ‘Toluqueño’ and ‘Cacahuazintle’: crystalline and floury, respectively, under two different conditions: natural colour and dyed black, evaluating the temperature changes by a thermal camera. The optical absorption spectra and the non-radiative relaxation time of the seeds were obtained using photoacoustic spectroscopy. The results indicate that it is possible to produce temperature changes, detected by an infrared camera, in crystalline and floury seeds when they are irradiated with a laser beam at a 650 nm wavelength and 27.4 mW power. The highest variation of temperature in the seeds was obtained for the black-dyed condition, these variations being 5.56 and 9.28°C for crystalline and floury seeds, respectively. Among the seeds, in the dyed condition, the floury seed had the lower non-radiative relaxation time, the higher optical absorption coefficient and a lower optical penetration length at the laser wavelength (650 nm).
Realization of a Simulation Model of SCADA – a System for Monitoring and Control of Sofia Metropolitan
Authors: Dimitrova E. , Dimitrov V. 
Published: May 2015

Abstract
In this paper, an imitation model of SCADA systems DISIM-V and DISIM-E, implemented in the Central Dispatcher Post (CDP) of the Sofia Metropolitan, is elaborated and described. These contemporary, modern and efficient SCADA systems are in operation in the subway and cover all technological processes for monitoring and control of the train traffic and power supply. Its extensive study is not possible due to the special mode and allowance. Thus a simulator, based on a synthesized imitation model has been also elaborated. The presence of laboratory models of these SCADA systems in Todor Kableshkov University of Transport is extremely useful in the learning process and enables the trainees to penetrate deeply into the core of modern SCADA technology. This simulation model is used by students and personnel for training and increasing the qualification of the operational specialists in the metropolitan, electricity distribution companies and the railway infrastructure.
Vzťah Prefixácie, Vidu a Valencie
Authors: Walková Milada 
Published: May 2015

Abstract
Literature has pointed out to the existence of two kinds of aspectual prefixes in Slavic languages - external or superlexical and internal or lexical - which differ in the ability to mark telicity and alter argument structure. The study discusses the two kinds of prefixes in Slovak on the basis of scalarity underlying telicity. External prefixes are nonscalar, they express an event is bounded in time but not inherently delimited. They are ±telic and they do not alter argument structure. In contrast, internal prefixes are scalar, because they refer to a scale that measures the event. They are +telic because they denote a boundary on the scale. They can alter argument structure because the event participant measured by a scale must be obligatorily realized as subject or direct object. There are three cases of argument structure alternation: 1. an optionally transitive verb becomes an obligatorily transitive prefixed verb, 2. an intransitive verb becomes an obligatorily transitive prefixed verb with unselected direct object, 3. an intransitive verb becomes an obligatorily reflexive prefixed verb with unselected reflexive marker sa, which I consider a kind of direct object.
Vývin Miery Substantívnej Pádovej Homonymie Vo Svetle Kváziteleologických Princípov
Authors: Braxatoris Martin 
Published: May 2015

Abstract
The paper gives a basic characteristic of the methodology and results of quantitative research of the development of noun case homonymy in Slovak and the East Slavonic languages in the comparison with the late Proto-Slavic ground state. The methodology is based on findings in the field of cognitive psychology, according to which a higher degree of ambiguity is linked with a higher level of the interpretative complexity. The paper also includes a proposal of the interpretation of findings of this research, which reveal the operation of principles of positive and negative feedback in the development of the above-mentioned languages morphology. The interpretation is based on the basic assumptions of the natural selection theory, in accordance to which the author proposes to explain the identified trends in the quasi-teleological spirit. The text is inspired by Jakobson's understanding of markedness and language teleonomy.
Zero that-clauses in the history of English. A historical sociolinguistic approach (1424–1681)
Authors: Conde-Silvestre J. Camilo , Calle-Martín Javier 
Published: May 2015

AbstractThe present paper traces the history ofzeroandthatas competing links for object clauses in the history of English from chronological and sociolinguistic perspectives. Even though the zero link is sporadically attested in Old English, the rise of the zero complementizer takes place in late Middle English and is well-established in the second half of the sixteenth century, becoming more frequent in speech-based text types (trials, sermons) or in texts representing the oral mode of expression (fiction, comedies). The use of this construction is then observed to diminish drastically in the eighteenth century, plausibly as a result of the prescriptive bias of grammarians (Warner 1982; Fanego 1990; Rissanen 1991, Rissanen 1999; Finegan and Biber 1995). Our analysis is based on five high frequency verbs,to know,to think,to say,to tellandto hope, and their syntactic behaviour in theParsed Corpus of Early English Correspondence, especially in the periods 1424–1499, 1500–1569, 1570–1639 and 1640–1681. Our approach aims at showing progress of the zero link along the S curve in these four periods, before it became thwarted in the eighteenth century. We also aim at plotting the diffusion of zerothat-clauses against the social hierarchy of the period in order to detect (i) the existence of social stratification for this variant, and, if such be the case, (ii) the social group or groups that were leading the diffusion of the change in the different chronological stages, thus (iii) tracing the social origin and direction of the change as diffusingfrom beloworfrom abovein sociolinguistic terms.
Runology and historical sociolinguistics: On runic writing and its social history in the first millennium
Authors: Schulte Michael 
Published: May 2015

AbstractThis paper argues that the rise and the transmission of the runes is largely determined by sociolinguistic factors. First, the olderfuþarkis identified as a unique Germanic design, adapted from Latin or Greek sources by one or more well-born Germani to mark group identity and status. Hence it is rather unlikely that the search for an exact source alphabet of the olderfuþarkwill make a major breakthrough in future research. Second, the present author argues that the extension of thefuþarkin the Anglo-Frisian setting is due to high-scale contact with the Christian Church, including Latin manuscript culture and Classical grammatical schooling, whereas these factors were almost entirely absent in pre-Viking-Age Scandinavia. The clerical influence is shown not least by “Christian inscriptions” in Anglo-Saxon England such as the Ruthwell Cross. Learned Christians recycled the obsolete runes to reestablish the phonological type ofperfect fit– a situation which is diametrically opposed to the Scandinavian scenario. Typologically, therefore, theFirst Grammatical Treatisein Iceland is directly in line with the Anglo-Frisian extension of the runic alphabet, whereas the Viking-Agefuþarkrepresents a counter-development with no clear influence of the Christian Church until the early 900s.
Statistical inversion in electrical impedance tomography using mixed total variation and non-convex ℓ
p
regularization prior
Authors: Strauss Thilo , Khan Taufiquar 
Published: May 2015

Abstract
Electrical impedance tomography (EIT) is a well-known technique to estimate the conductivity distribution γ of a body Ω with unknown electromagnetic properties. EIT is a severely ill-posed inverse problem. In this paper, we formulate the EIT problem in the Bayesian framework using mixed total variation (TV) and non-convex ℓ
p
regularization prior. We use the Markov Chain Monte Carlo (MCMC) method for sampling the posterior distribution to solve the ill-posed inverse problem in EIT. We present simulations to estimate the distribution for each pixel for the image reconstruction of the conductivity in EIT.
Ethnic and Racial Employment Discrimination in Low-Wage and High-Wage Markets: Randomized Controlled Trials Using Correspondence Tests in Israel
Authors: Ariel Barak , Tobby-Alimi Ilanit , Cohen Irit , Ben Ezra Mazal , Cohen Yafa , Sosinski Gabriela 
Published: May 2015

Abstract
A rich body of literature on employment discrimination exists. Theoretically, discriminatory practices are explained by taste-based discrimination, differences in the bargaining ability of applicants or statistical discrimination. Global experimental research tends to show significant anti-minority attitudes in the hiring process, specifically at the entry stage into the engagement cycle – when an application and resume are sent to the prospective employer. These field studies often employ “correspondence tests,” in which identical, fictitious resumes are sent to employers with differences only in the racial, gender, religious or national origin of the applicant (e.g., the name of the applicant). Yet, the literature is lacking in at least three areas: First, evidence from correspondence tests has primarily focused on middle-range wage earners, and little research exists on low-wage or high-wage earner positions. Second, research has looked at employment discrimination that excludes certain groups, but has neglected possible prejudice that “locks” such groups into unqualified or underpaid positions. Finally, there may also be a place-based effect – in which diverse communities are less discriminatory than more homogeneous communities, or vice versa. In this paper, we report on two population-level experiments with seven independent correspondence tests that were conducted in the Israel labor market, both designed to fill these three lags in the literature. We tested the likelihood of (a) Israeli-Arab lawyers versus Jewish lawyers being asked to job interviews at Israel’s largest law firms (n = 178); and (b) Mizrahi Jews versus Ashkenazi Jews being asked to job interviews, in any one of the registered security firms (n = 369). We compared which groups are more likely to be called for interviews and then meta-analyzed the results using standardized differences of means. Our findings suggest significant overall employment discrimination against both Arab-Israelis and Mizrahi Jews, whose applications are overall less likely to be both acknowledged by the prospective employers and asked for interview – despite the applicants having identical qualifications. However, we find that the effect in low-wage jobs is conditional on geographic location, with evidence to suggest that in some regions there is no preference toward either ethnicity. We find no support for a locking effect. We discuss the findings in the broader theoretical context, but suggest that a more granular application of the theory is called for, which takes into account community dynamics and the level of localized ethnic integration.
Trophic water assessment of the small retention reservoirs Blizne and Cierpisz in the Podkarpacie Region (Subcarpathian Province)
Authors: Miąsik Małgorzata , Koszelnik Piotr , Bartoszek Lilianna 
Published: May 2015

Abstract
The paper presents an analysis of the trophic status of two small retention reservoirs located in the Subcarpathian region: Blizne reservoir on the River Ladzierz and Cierpisz reservoir on the River Tuszymka. The capacity of the reservoirs is respectively 137,000 m3 and 22,000 m3 and they occupy an area of 11.46 and 2.3 hectares. The study was conducted from May to October in 2013 and in 2014. Samples of surface water were collected from two locations for each reservoir. Assessment of the trophic status of the reservoirs was based on the concentrations of phosphorus, nitrogen and chlorophyll a. Criteria available in the literature were used to assess the trophic status. The progress of eutrophication was also evaluated on the basis of the Trophic State Index (TSI). Analysis of the results showed that in the studied period the water of Blizne was on the border of eutrophic and hypertrophic. The fertility of the water of Cierpisz in the analysed period deteriorated from the eutrophic state to the border with hypertrophic