bluuebunny/crossref_metadata_2025_split huggingface dataset:
Valorisation patrimoniale et dynamiques territoriales autour d'un site karstique emblématique : le poljé de Cerknica (Slovénie)
Authors: Duval Mélanie 
Published: November 2018

Heritage valorization and territorial dynamics around an emblematic karstic site : the polje of Cerknica (Slovenia)
Centered on the polje of Cerknica (Slovenia), this paper proposes a sociogeographic approach of a karstic site considered as emblematic. We will deal with the question in which measure the site of Cerknica is marked by construction works as opposed to the heritage valorization of its physical, faunistic and floristic characteristics.
In fact, the polje of Cerknica is emblematic in many points of view ! It became a scientific curiosity already in early times. From the XVIth century, the functioning of its temporary lake raises questions to the European scientific community, which tries to explain the mystery of the lake of Cerknica. This fascination for the polje of Cerknica contributed gradually to the perception as «haut lieu» of Slovenian and paneuropean karstic landscapes.
At the same time, the polje of Cerknica became the heart of the local life space : the seasonal variations of the waterlevel allow the inhabitants of the neighborhood to satisfy their needs. Therefore, the polje of Cerknica also became emblematic because of the complementarity of the economic activities which it allows.
This atypical dimension can be found again while reading about the oversized projects of development conceived for the polje : dewatering for the needs of agriculture, permanent lake to produce hydro-electricity or to build a tourist complex, are only some of the many projects which marked the XXth century and contributed to highlight the features of this karstic site.
Scientific curiosity, place of resource for the local populations, object of economic greeds, the polje is today marked by heritage valorization. The creation of a regional park allows the local stakeholders to assert their legitimations, to mark their territory and to think about their future in terms of sustainable development.
Early Detection of Imminent Encapsulating Peritoneal Sclerosis: Free Water Transport, Selected Effluent Proteins, or Both?
Authors: Barreto Deirisa Lopes , Sampimon Denise E. , Struijk Dirk G. , Krediet Raymond T. 
Published: November 2018

Background No diagnostic tool or methodology is currently available for early detection of imminent encapsulating peritoneal sclerosis (EPS). The objective of this study was to investigate the predictive value of free water transport (FWT) and construct a panel of peritoneal effluent proteins for EPS alone or in combination with FWT. These parameters could be incorporated in the follow-up of peritoneal dialysis (PD) patients. Methods A case-control study, nested in a longitudinal PD patient cohort, was conducted. Time-specific areas under the receiver operating characteristic (ROC) curve were calculated for FWT and effluent biomarkers at a lag time up to 3 years before EPS diagnosis. Free water transport was combined with appearance rates (AR) of biomarkers to assess their clinical validity. Results Free water transport volume and AR of effluent bio-markers were investigated in 11 EPS patients and 34 long-term PD patients. Diagnostic performance was best for FWT (area under the curve [AUC] 0.94) followed by plasminogen activator inhibitor (PAI-1) AR. Throughout, diagnostic panels of FWT and AR of cancer antigen 125 (CA125), interleukin-6 (IL-6), or (PAI-1) yielded specificity estimates above 84%. The combination of FWT and PAI-1 AR identified the largest proportion of EPS patients at 1 year prior to diagnosis (sensitivity 100%, specificity 94%). Conclusion Measurement of FWT is simple and has the highest predictive value for imminent EPS. The addition of effluent biomarkers provides an all-round insight into the state of the peritoneum. Our data indicate that combining FWT with either PAI-1, CA125, or IL-6 has the highest specificity. This is required to avoid unnecessary discontinuation of PD treatment.
Missing Gamma-Ray Halos and the Need for New Physics in the Gamma-Ray Sky
Authors: Broderick Avery E. , Tiede Paul , Chang Philip , Lamberts Astrid , Pfrommer Christoph , Puchwein Ewald , Shalaby Mohamad , Werhahn Maria 
Published: November 2018

Abstract
An intergalactic magnetic field (IGMF) stronger than 3 × 10−13 G would explain the lack of a bright, extended degree-scale, GeV-energy inverse Compton component in the gamma-ray spectra of TeV blazars. A robustly predicted consequence of the presence of such a field is the existence of degree-scale GeV-energy gamma-ray halos (gamma-ray bow ties) about TeV-bright active galactic nuclei, corresponding to more than half of all radio galaxies. However, the emitting regions of these halos are confined to and aligned with the direction of the relativistic jets associated with gamma-ray sources. Based on the orientation of radio jets, we align and stack corresponding degree-scale gamma-ray images of isolated Fanaroff–Riley class I and II objects and exclude the existence of these halos at overwhelming confidence, limiting the intergalactic field strength to <10−15 G for large-scale fields and progressively larger in the diffusive regime when the correlation length of the field becomes small in comparison to 1 Mpc. When combined with prior limits on the strength of the IGMF, this excludes a purely magnetic explanation for the absence of halos. Thus, it requires the existence of novel physical processes that preempt the creation of halos, e.g., the presence of beam-plasma instabilities in the intergalactic medium or a drastic cutoff of the very high-energy spectrum of these sources.
Atomic Data on Inelastic Processes in Low-energy Lithium–Hydrogen Collisions
Authors: Belyaev Andrey K. , Voronov Yaroslav V. 
Published: November 2018

Abstract
The cross sections and the rate coefficients for mutual neutralization, ion-pair formation, excitation, and de-excitation processes in low-energy Li + H and Li+ + H− collisions are calculated for all transitions between the seven lowest-lying atomic lithium states and the ionic state for the collision energy range 0.01–100 eV and the temperature range 1000–10,000 K. The calculations are performed by the quantum probability current method based on the accurate adiabatic potentials. The present rate coefficients for the mutual neutralization processes are in perfect agreement with the available full quantum data. For the excitation and de-excitation processes, the present data are more accurate than the previous rates. The processes with large and moderate rates are singled out. Additional calculations made by the quantum multichannel approach show that the reaction mechanism of these processes is mainly based on the long-range ionic–covalent interaction. The processes with large and moderate rates are important for astrophysical applications.
Setting the Stage for Cosmic Chronometers. I. Assessing the Impact of Young Stellar Populations on Hubble Parameter Measurements
Authors: Moresco Michele , Jimenez Raul , Verde Licia , Pozzetti Lucia , Cimatti Andrea , Citro Annalisa 
Published: November 2018

Abstract
The expansion history of the universe can be constrained in a cosmology-independent way by measuring the differential age evolution of cosmic chronometers. This yields a measurement of the Hubble parameter H(z) as a function of redshift. The most reliable cosmic chronometers known so far are extremely massive and passively evolving galaxies. Age-dating these galaxies is, however, a difficult task, and even a small contribution of an underlying young stellar population could, in principle, affect the age estimate and its cosmological interpretation. We present several spectral indicators to detect, quantify, and constrain such contamination in old galaxies and study how their combination can be used to maximize the purity of cosmic chronometers selection. In particular, we analyze the Ca ii H/K ratio, the presence (or absence) of Hα and [O ii] emission lines, higher-order Balmer absorption lines, and UV flux; each indicator is especially sensitive to a particular age range, allowing us to detect young components ranging between 10 Myr and 1 Gyr. The combination of these indicators minimizes the contamination to a level below 1% in the case of ideal data. More importantly, it offers a way to control the systematic error on H(z) as a function of the contamination by young stellar populations. We show that for our previous measurements of the Hubble parameter, the possible bias induced by the presence of a younger component is well below the current errors. We envision that these indicators will be instrumental in paving the road for a robust and reliable dating of the old population and its cosmological interpretation.
Observational Constraints on the Tilted Spatially Flat and the Untilted Nonflat ϕCDM Dynamical Dark Energy Inflation Models
Authors: Park Chan-Gyung , Ratra Bharat 
Published: November 2018

Abstract
We constrain spatially flat tilted and nonflat untilted scalar field (ϕ) dynamical dark energy inflation (ϕCDM) models by using Planck 2015 cosmic microwave background (CMB) anisotropy measurements and recent baryonic acoustic oscillation distance observations, Type Ia supernovae apparent magnitude data, Hubble parameter measurements, and growth rate data. We assume an inverse power-law scalar field potential energy density

. We find that the combination of the CMB data with the four non-CMB data sets significantly improves parameter constraints and strengthens the evidence for nonflatness in the nonflat untilted ϕCDM case from 1.8σ for the CMB measurements only to more than 3.1σ for the combined data. In the nonflat untilted ϕCDM model, current observations favor a spatially closed universe with spatial curvature contributing about two-thirds of a percent of the present cosmological energy budget. The flat tilted ϕCDM model is a 0.4σ better fit to the data than is the standard flat tilted ΛCDM model: current data allow for the possibility that dark energy is dynamical. The nonflat tilted ϕCDM model is in better accord with the Dark Energy Survey bounds on the rms amplitude of mass fluctuations now (σ
8) as a function of the nonrelativistic matter density parameter now (Ω
m
) but it does not provide as good a fit to the larger-multipole Planck 2015 CMB anisotropy data as does the standard flat tilted ΛCDM model. A few cosmological parameter value measurements differ significantly when determined using the tilted flat and the untilted nonflat ϕCDM models, including the cold dark matter density parameter and the reionization optical depth.
Magnetic Flux Reconnection in Flaring Active Regions with Sustained Gamma-Ray Emission
Authors: Kahler S. W. , Cliver E. W. , Kazachenko M. 
Published: November 2018

Abstract
Characteristics of sustained >100 MeV γ-ray emission (SGRE) events observed by the Large Area Telescope on Fermi were recently reported by Share et al. Their spectra are consistent with the decay of pions produced by >300 MeV protons and appear spectrally and spatially distinct from preceding associated flares. The source(s) of the sustained production of the >300 MeV protons is uncertain, but acceleration in coronal/interplanetary shock waves driven by coronal mass ejections, followed by a return of the protons back to the Sun, is favored. This scenario requires proton transport through converging magnetic fields behind the shock, which might result in considerable reflection of the protons back into space, and 1 au observations of the associated solar energetic proton (SEP) events do not always include a population of E > 300 MeV protons. Alternative source candidates that involve trapping or continued acceleration of SEPs in coronal loops have been considered. The energy release rates from magnetic reconnection in flaring active regions (ARs) have been measured with a new technique, and in this work we compare those measured flux reconnection rates with emission profiles in 11 SGRE events. In general, the magnetic reconnection event is nearly or completely finished before the bulk of the γ-ray emission, which argues against scenarios of continued proton acceleration in the flaring ARs.
CME-driven Shock and Type II Solar Radio Burst Band Splitting
Authors: Chrysaphi Nicolina , Kontar Eduard P. , Holman Gordon D. , Temmer Manuela 
Published: November 2018

Abstract
Coronal mass ejections (CMEs) are believed to be effective in producing shocks in the solar corona and interplanetary space. One of the important signatures of shocks and shock acceleration are Type II solar radio bursts that drift with the shock speed and produce bands of fundamental and higher harmonic plasma radio emission. An intriguing aspect of Type II radio bursts is the occasional split of a harmonic band into thinner lanes, known as band splitting. Here we report a detailed imaging and spectroscopic observation of a CME-driven shock producing band splitting in a Type II burst. Using LOFAR, we examine the spatial and temporal relation of the Type II burst to the associated CME event, use source imaging to calculate the apparent coronal density, and demonstrate how source imaging can be used to estimate projection effects. We consider two widely accepted band-splitting models that make opposing predictions regarding the locations of the true emission sources with respect to the shock front. Our observations suggest that the locations of the upper and lower subband sources are spatially separated by ∼0.2 ± 0.05 R
⊙. However, we quantitatively show, for the first time, that such separation is consistent with radio-wave scattering of plasma radio emission from a single region, implying that the split-band Type II sources could originate from nearly cospatial locations. Considering the effects of scattering, the observations provide supporting evidence for the model that interprets the band splitting as emission originating in the upstream and downstream regions of the shock front, two virtually cospatial areas.
Fast Ion Heating in Transient Collisionless Magnetic Reconnection via an Intrinsic Stochastic Mechanism
Authors: Yoon Young Dae , Bellan Paul M. 
Published: November 2018

Abstract
Stochastic heating has been known to be a powerful ion heating mechanism in the solar wind, atmosphere, and flares. In this Letter, we show that stochastic ion heating is inherent to transient collisionless magnetic reconnection. The explanation exploits the connected nature of electron canonical vorticity to show analytically that the in-plane electric and magnetic fields in a typical reconnection geometry satisfy the condition for stochastic heating of ions. Electron fluid simulations, test ion simulations, and comparisons to experiments all support the existence of this mechanism.
Extreme-ultraviolet Radiation from A-stars: Implications for Ultra-hot Jupiters
Authors: Fossati L. , Koskinen T. , Lothringer J. D. , France K. , Young M. E. , Sreejith A. G. 
Published: November 2018

Abstract
Extremely irradiated, close-in planets to early-type stars might be prone to strong atmospheric escape. We review the literature showing that X-ray-to-optical measurements indicate that for intermediate-mass stars (IMSs) cooler than ≈8250 K, the X-ray and extreme-ultraviolet (XUV) fluxes are on average significantly higher than those of solar-like stars, while for hotter IMSs, because of the lack of surface convection, it is the opposite. We construct spectral energy distributions for prototypical IMSs, comparing them to solar. The XUV fluxes relevant for upper-planet atmospheric heating are highest for the cooler IMSs and lowest for the hotter IMSs, while the ultraviolet (UV) fluxes increase with increasing stellar temperature. We quantify the influence of this characteristic of the stellar fluxes on the mass loss of close-in planets by simulating the atmospheres of planets orbiting EUV-bright (WASP-33) and EUV-faint (KELT-9) A-type stars. For KELT-9b, we find that atmospheric expansion caused by heating due to absorption of the stellar UV and optical light drives mass-loss rates of ≈1011 g s−1, while heating caused by absorption of the stellar XUV radiation leads to mass-loss rates of ≈1010 g s−1, thus underestimating mass loss. For WASP-33b, the high XUV stellar fluxes lead to mass-loss rates of ≈1011 g s−1. Even higher mass-loss rates are possible for less massive planets orbiting EUV-bright IMSs. We argue that it is the weak XUV stellar emission, combined with a relatively high planetary mass, which limit planetary mass-loss rates, to allow the prolonged existence of KELT-9-like systems.
Uvodnik
Authors: Gantar Polona , Logar Breginc Nataša 
Published: November 2018

Digitalizirani jezikovni viri, procesiranje naravnega jezika, korpusne analize slovničnih in drugih jezikovnih pojavov, rudarjenje besedil, označevalniki, luščilniki, leksikografska orodja, sinteza govora, strojno prevajanje, avatarski sogovorci, pametne hiše ... Skupna točka: jezik.
Korpusnojezikoslovni mo(nu)menti: Korpusi slovenskega jezika Gigafida, KRES, ccGigafida in ccKRES: gradnja, vsebina, uporaba
Authors: Popič Damjan 
Published: November 2018

»Pripravi naj se par strani dolgo besedilo o namenu korpusa in razlogih zbiranja materialov – namenjeno ljudem in institucijam, od katerih bomo skušali dobiti material.« Takšen je bil pred več kot 15 leti sklep štiričlanske komisije, ki si je naložila nalogo, da sestavi referenčni korpus slovenskega jezika. Načrt je bil visokoleteč, tipično zaznamovan z začetnimi težavami (iskanjem darovalcev besedil, izdelavo predlog ipd.), v veliki meri takšnimi, s kakršnimi se danes slovenskim korpusnim raziskovalcem prav zaradi tega začetnega truda ni treba več (toliko) ubadati.
Konferenca Slovenščina na spletu in v novih medijih
Authors: Fišer Darja 
Published: November 2018

Od 25. do 27. novembra 2015 je v dvorani GIAM ZRC SAZU v Ljubljani potekala znanstvena konferenca Slovenščina na spletu in v novih medijih. Konferenco so v okviru temeljnega raziskovalnega projekta JANES, ki ga med letoma 2014 in 2017 financira Javna agencija za raziskovalno dejavnost Republike Slovenije, soorganizirali Filozofska fakulteta Univerze v Ljubljani, Slovensko društvo za jezikovne tehnologije, slovenska raziskovalna infrastruktura za jezikovne vire in tehnologije CLARIN.SI in regionalna iniciativa za jezikovne podatke RelDI. Prvi dan konference je bil namenjen celodnevnemu seminarju iz statistike za jezikoslovce, ki ga je vodila doc. dr. Maja Miličević z Univerze v Beogradu. 25 udeležencev se je seznanilo z osnovami kvantitativnih metod v korpusnem jezikoslovju, opisno in inferenčno statistiko, prav tako pa tudi z načini vizualizacije jezikovnih podatkov in programskega paketa R. Gradivo s seminarja je dostopno na konferenčni spletni strani.
Aspectos quantitativos e qualitativos sobre as barreiras para o uso de bicicleta em adultos de Curitiba, Brasil
Authors: Kienteka Marilson , Camargo Edina Maria de , Fermino Rogério César , Reis Rodrigo Siqueira 
Published: November 2018

The implementation of bicycling promotion programs should consider the barriers to this behavior. The aim of this study was to quantitative and qualitatively characterize barriers to leisure and commuting bicycle use for adults from Curitiba, Brazil. The first phase comprised a cross-sectional household survey involving 677 adults (53% women). Of these, 16.7% and 11.2% reported leisure and commuting bicycle use, respectively. Then, 24 bicycle users (50% women) were recruited and participated in focus group interviews. The content of answers was analyzed with a conceptual matrix. The most reported barriers to leisure bicycle use were “bad weather” (65.5%), “heavy traffic” (53.1%), “lack of bike lanes” (48.7%) and “lack of security “(44.2%). In commuting, the most reported were “bad weather” (69.7%), “heavy traffic”, “lack of safety” and “fear of accidents” (51.3% each). The comparative analysis between barriers reported in the survey and those reported in the focus groups showed a combination of seven of the 11 barriers reported in questionnaires. Some of the barriers identified in the survey were not mentioned in the focus groups (“poor street quality”, “pollution”, “not having a bicycle”, “lack of parking”, “distance to destinations”). The main barriers to bicycle use are related to physical environment and safety aspects, regardless of approach adopted and purpose of use.
A “prática” como “critério de verdade”
Authors: Peixoto Elza Margarida de Mendonça 
Published: November 2018

A que, de fato, remete a tese da prática como critério de verdade, tal como desenvolvida no pensamento de Marx e Engels? O artigo traz revisão que considera (a) as indicações e posições do filósofo português José Adriano Barata-Moura sobre o desenvolvimento do movimento da dialética idealista à dialética materialista operada por Marx, movimento no qual assume centralidade a perspectiva da prática como transformação material; (b) a leitura direta das obras escritas por Marx, e em alguns casos, obras escritas em conjunto com Engels, entre os anos de 1843 e 1846 (período em torno da escrita das Teses sobre Feuerbach) nas quais evidencia-se o movimento de crítica aos supostos idealistas da dialética e ao materialismo positivista.
Epistemologia da práxis na formação de professores: perspectiva crítica emancipadora
Authors: Augusta Curado Pinheiro Cordeiro da Silva Kátia Augusta 
Published: November 2018

Partindo de reflexões que estudam os paradigmas da racionalidade teórica, racionalidade técnica, epistemologia da prática na formação de professores, discute-se no presente artigo pressupostos epistemológicos que podem contribuir para reelaborar perspectivas no processo da formação docente. Tendo como problema de referência conceitual, a partir da epistemologia da práxis, busca-se explicitar uma proposta para a formação de professores, referenciada em quatro teses: i) organizar a formação de professores a partir da epistemologia da práxis; ii) aliar a)formação de professores ao debate político da educação: a crítica social; iii) o trabalho docente constitui o ser profissional; iv) referenciar na Base Comum Nacional que compreende os sentidos epistemológico, político e profissional da formação de professores. O estudo foi realizado a partir de pesquisa bibliográfica para fundamentação teórica sobre a formação de professores e, também, como resultado de diferentes trabalhos empíricos que contribuíram com a construção da perspectiva crítica emancipadora. Considera-se que o professor necessita, pela natureza do seu trabalho, vivenciar uma formação de natureza científica, artística, ética e técnica de elevado nível que impõe, portanto, duas atividades de prática e teoria, a fim de construir o sentido da práxis como ação transformadora sustentada pelo conhecimento da realidade e reflexão, que fortalece o sentido histórico da ação educativa a favor da emancipação. Palavras-chaves: formação de professores. Epistemologia da práxis. Perspectiva crítica emancipadora.
Pensando sobre tradição, religião e política no Egito contemporâneo
Authors: Asad Talal 
Published: November 2018

Neste trabalho, Talal Asad reflete sobre a política no Egito contemporâneo e sua relação com a tradição islâmica. Tendo como pano de fundo a revolução egípcia de janeiro de 2011 e seus acontecimentos ulteriores, nomeadamente a hostilidade contra a Irmandade Muçulmana e seus apoiantes, o antropólogo olha não só para as imbricações entre a perspectiva secular moderna e o islã, mas essencialmente para os aspectos dessa tradição religiosa que, segundo os secularistas, são incompatíveis com o Estado soberano moderno. Assumindo uma posição crítica no que concerne à prática e ao discurso modernos – que visam enfraquecer a tradição islâmica –, Asad explora as possibilidades de reintegração dessa tradição no caminho democrático egípcio pós-2011, mas usando-o apenas como modelo de como os Estados liberais podem beneficiar de um tipo de corporização de costumes e princípios éticos oferecidos pela tradição.