bluuebunny/crossref_metadata_2025_split huggingface dataset:
Swedish Publications in a Global World
Authors: Björkman Jenny 
Published: January 2016

This paper is about the problems of publishing in a global academic world. The Swedish monograph is slowly in decline in Sweden. The international peer-reviewed article is taking its place. Yet just as the monograph has had problems, this newer trend has multiple new quandaries. Instead of being read by a larger international audience, some articles tend to stay unread when neither the national nor the international public can find the results. Social scientists and humanities lack a specific venue or scene where results can be discussed by both experts and the public, such as Science or Nature. This is a problem since the public miss out on important, often tax-funded, knowledge, but also because academics miss out on having an audience and the impact that comes from meeting with the public.
Secondly many journals are so specialised that they influence not only the public’s understanding of research and their view on research but also the research and the researchers. Furthermore academics lack both the time to read all relevant articles and to write longer and more complex works, which would be beneficial to both the public and scholars as well. Therefore the race to get published, i.e. achieve excellence and have more impact, tends to affect the research. Researcher may even choose their subjects and how they write about them in order to get published rather than focusing on interesting questions.
Naturally possible solutions have been discussed, such as open access books and more stringent demands on the impact of the research and relevance to the public. However there are still no absolute answers.
Learning with companies (LeWiCo) through the use of Facebook in the context of vocational hospitality education & digital spa marketing
Authors: Isacsson Annica 
Published: January 2016

There is still lack of information on how to best implement social media in project collaboration and tourism marketing education despite the fact that social media offer interesting intercultural learning opportunities and enriching learning environments. This article aims to describe an example of an international, collaborative learning project conducted on Facebook in the context of vocational hospitality education/spa marketing. The aim of the Facebook project was to enhance work-based pedagogy, and to construct flow in learning.
The article adopts a case study approach to describe in detail how Facebook was used to foster self-directed and co-constructive learning in a social environment. The findings presented in the article are based on the postings of participating students in Facebook, and on teachers and project team reflections. Overall, the project was a success and led to the construction of a useful, current and engaging knowledge base in the context of spa marketing.
Moreover, the students appreciated the informal learning environment, and the teachers learned how to enhance learning without suffocating the learning process with too many guidelines or information. The students learned how to collaborate independently, and in pairs, and to take responsibility of their own learning.
JEANS ANALYSIS OF THE GALACTIC THICK DISK AND THE LOCAL DARK MATTER DENSITY
Authors: Sánchez-Salcedo F. J. , Flynn Chris , Diego J. A. de 
Published: January 2016

ABSTRACT
Dynamical estimates of the mass surface density at the solar radius can be made up to a height of 4 kpc using thick disk stars as tracers of the potential. We investigate why different Jeans estimators of the local surface density lead to puzzling and conflicting results. Using the Jeans equations, we compute the vertical (F

z
) and radial (F

R
) components of the gravitational force, as well as Γ(z), which is defined as

, with

. If we assume that the thick disk does not flare and that all the components of the velocity dispersion tensor of the thick disk have a uniform radial scalelength of 3.5 kpc, Γ takes implausibly large negative values when using the currently available kinematical data of the thick disk. This implies that the input parameters or the model assumptions must be revised. We have explored, using a simulated thick disk, the impact of the assumption that the scalelengths of the density and velocity dispersions do not depend on the vertical height z above the midplane. In the absence of any information about how these scale radii depend on z, we define a different strategy. By using a parameterized Galactic potential, we find that acceptable fits to F

z
, F

R
, and Γ are obtained for a flaring thick disk and a spherical dark matter (DM) halo with a local density ≳0.0064 M
⊙ pc−3. Disk-like DM distributions may be also compatible with the current data of the thick disk. A precise measurement of Γ at the midplane could be very useful for discriminating between models.
FREQUENCY-DEPENDENT DISPERSION MEASURES AND IMPLICATIONS FOR PULSAR TIMING
Authors: Cordes J. M. , Shannon R. M. , Stinebring D. R. 
Published: January 2016

ABSTRACT
The dispersion measure (DM), the column density of free electrons to a pulsar, is shown to be frequency dependent because of multipath scattering from small-scale electron-density fluctuations. DMs vary between propagation paths whose transverse extent varies strongly with frequency, yielding arrival times that deviate from the high-frequency scaling expected for a cold, uniform, unmagnetized plasma (1/frequency2). Scaling laws for thin phase screens are verified with simulations; extended media are also analyzed. The rms DM difference across an octave band near 1.5 GHz is ∼ 4 × 10−5 pc cm−3 for pulsars at ∼1 kpc distance. The corresponding arrival-time variations are a few to hundreds of nanoseconds for DM ≲ 30 pc cm−3 but increase rapidly to microseconds or more for larger DMs and wider frequency ranges. Chromatic DMs introduce correlated noise into timing residuals with a power spectrum of “low pass” form. The correlation time is roughly the geometric mean of the refraction times for the highest and lowest radio frequencies used, ranging from days to years, depending on the pulsar. We discuss implications for methodologies that use large frequency separations or wide bandwidth receivers for timing measurements. Chromatic DMs are partially mitigable by including an additional chromatic term in arrival time models. Without mitigation, an additional term in the noise model for pulsar timing is implied. In combination with measurement errors from radiometer noise, an arbitrarily large increase in total frequency range (or bandwidth) will yield diminishing benefits and may be detrimental to overall timing precision.
RESONANT REMOVAL OF EXOMOONS DURING PLANETARY MIGRATION
Authors: Spalding Christopher , Batygin Konstantin , Adams Fred C. 
Published: January 2016

ABSTRACT
Jupiter and Saturn play host to an impressive array of satellites, making it reasonable to suspect that similar systems of moons might exist around giant extrasolar planets. Furthermore, a significant population of such planets is known to reside at distances of several Astronomical Units (AU), leading to speculation that some moons thereof might support liquid water on their surfaces. However, giant planets are thought to undergo inward migration within their natal protoplanetary disks, suggesting that gas giants currently occupying their host star’s habitable zone formed farther out. Here we show that when a moon-hosting planet undergoes inward migration, dynamical interactions may naturally destroy the moon through capture into a so-called evection resonance. Within this resonance, the lunar orbit’s eccentricity grows until the moon eventually collides with the planet. Our work suggests that moons orbiting within about ∼10 planetary radii are susceptible to this mechanism, with the exact number dependent on the planetary mass, oblateness, and physical size. Whether moons survive or not is critically related to where the planet began its inward migration, as well as the character of interlunar perturbations. For example, a Jupiter-like planet currently residing at 1 AU could lose moons if it formed beyond ∼5 AU. Cumulatively, we suggest that an observational census of exomoons could potentially inform us on the extent of inward planetary migration, for which no reliable observational proxy currently exists.
A POPULATION OF INTERMEDIATE-MASS BLACK HOLES IN DWARF STARBURST GALAXIES UP TO REDSHIFT = 1.5
Authors: Mezcua M. , Civano F. , Fabbiano G. , Miyaji T. , Marchesi S. 
Published: January 2016

ABSTRACT
We study a sample of ∼50,000 dwarf starburst and late-type galaxies drawn from the COSMOS survey with the aim of investigating the presence of nuclear accreting black holes (BHs) as those seed BHs from which supermassive BHs could grow in the early universe. We divide the sample into five complete redshift bins up to z = 1.5 and perform an X-ray stacking analysis using the Chandra COSMOS-Legacy survey data. After removing the contribution from X-ray binaries and hot gas to the stacked X-ray emission, we still find an X-ray excess in the five redshift bins that can be explained by nuclear accreting BHs. This X-ray excess is more significant for

. At higher redshifts, these active galactic nuclei could suffer mild obscuration, as indicated by the analysis of their hardness ratios. The average nuclear X-ray luminosities in the soft band are in the range 1039–1040 erg s−1. Assuming that the sources accrete at ≥1% the Eddington rate, their BH masses would be ≤105

, thus in the intermediate-mass BH regime, but their mass would be smaller than the one predicted by the BH-stellar mass relation. If instead the sources follow the correlation between BH mass and stellar mass, they would have sub-Eddington accreting rates of ∼10−3 and BH masses 1–9 × 105

. We thus conclude that a population of intermediate-mass BHs exists in dwarf starburst galaxies, at least up to z = 1.5, though their detection beyond the local universe is challenging due to their low luminosity and mild obscuration unless deep surveys are employed.
FRONTIER FIELDS: SUBARU WEAK-LENSING ANALYSIS OF THE MERGING GALAXY CLUSTER A2744*
Authors: Medezinski Elinor , Umetsu Keiichi , Okabe Nobuhiro , Nonino Mario , Molnar Sandor , Massey Richard , Dupke Renato , Merten Julian 
Published: January 2016

ABSTRACT
We present a weak-lensing analysis of the merging Frontier Fields (FF) cluster Abell 2744 using new Subaru/Suprime-Cam imaging. The wide-field lensing mass distribution reveals this cluster is comprised of four distinct substructures. Simultaneously modeling the two-dimensional reduced shear field using a combination of a Navarro–Frenk–White (NFW) model for the main core and truncated NFW models for the subhalos, we determine their masses and locations. The total mass of the system is constrained as

The most massive clump is the southern component with

followed by the western substructure (

) and two smaller substructures to the northeast (

) and northwest (

). The presence of the four substructures supports the picture of multiple mergers. Using a composite of hydrodynamical binary simulations we explain this complicated system without the need for a “slingshot” effect to produce the northwest X-ray interloper, as previously proposed. The locations of the substructures appear to be offset from both the gas (

arcsec, 90% CL) and the galaxies (

arcsec, 90% CL) in the case of the northwestern and western subhalos. To confirm or refute these findings, high resolution space-based observations extending beyond the current FF limited coverage to the west and northwestern area are essential.
EXTENDING COSMOLOGICAL TESTS OF GENERAL RELATIVITY WITH THE SQUARE KILOMETRE ARRAY
Authors: Bull Philip 
Published: January 2016

ABSTRACT
Tests of general relativity (GR) are still in their infancy on cosmological scales, but forthcoming experiments promise to greatly improve their precision over a wide range of distance scales and redshifts. One such experiment, the Square Kilometre Array (SKA), will carry out several wide and deep surveys of resolved and unresolved neutral hydrogen (H i) 21 cm line-emitting galaxies, mapping a significant fraction of the sky from

. I present forecasts for the ability of a suite of possible SKA H i surveys to detect deviations from GR by reconstructing the cosmic expansion and growth history. SKA Phase 1 intensity mapping surveys can achieve sub-1% measurements of

out to

, with an SKA1-MID Band 2 survey out to z ≲ 0.6 able to surpass contemporary spectroscopic galaxy surveys such as DESI and Euclid in terms of constraints on modified gravity parameters if challenges such as foreground contamination can be tackled effectively. A more futuristic Phase 2 H i survey of

spectroscopic galaxy redshifts would be capable of detecting a

modification of the Poisson equation out to z ≈ 2.
VARIABILITY IN HOT CARBON-DOMINATED ATMOSPHERE (HOT DQ) WHITE DWARFS: RAPID ROTATION?
Authors: Williams Kurtis A. , Montgomery M. H. , Winget D. E. , Falcon Ross E. , Bierwagen Michael 
Published: January 2016

ABSTRACT
Hot white dwarfs (WDs) with carbon-dominated atmospheres (hot DQs) are a cryptic class of WDs. In addition to their deficiency of hydrogen and helium, most of these stars are highly magnetic, and a large fraction vary in luminosity. This variability has been ascribed to nonradial pulsations, but increasing data call this explanation into question. We present studies of short-term variability in seven hot DQ WDs. Three (SDSS J1426+5752, SDSS J2200−0741, and SDSS J2348−0942) were known to be variable. Their photometric modulations are coherent over at least two years, and we find no evidence for variability at frequencies that are not harmonics. We present the first time-series photometry for three additional hot DQs (SDSS J0236−0734, SDSS J1402+3818, and SDSS J1615+4543); none are observed to vary, but the signal-to-noise is low. Finally, we present high speed photometry for SDSS J0005−1002, known to exhibit a 2.1-day photometric variation; we do not observe any short-term variability. Monoperiodicity is rare among pulsating WDs, so we contemplate whether the photometric variability is due to rotation rather than pulsations; similar hypotheses have been raised by other researchers. If the variability is due to rotation, then hot DQ WDs as a class contain many rapid rotators. Given the lack of companions to these stars, the origin of any fast rotation is unclear—both massive progenitor stars and double degenerate merger remnants are possibilities. We end with suggestions of future work that would best clarify the nature of these rare, intriguing objects.
DRY MERGER RATE AND POST-MERGER FRACTION IN THE COMA CLUSTER CORE
Authors: Cordero Juan P. , Campusano Luis E. , Propris Roberto De , Haines Christopher P. , Weinzirl Tim , Jogee Shardha 
Published: January 2016

ABSTRACT
We evaluate the dry merger activity in the Coma cluster, using a spectroscopically complete sample of 70 red-sequence (RS) galaxies, most of which (∼75%) are located within 0.2R
200 (∼0.5 Mpc) from the cluster center, with data from the Coma Treasury Survey obtained with the Hubble Space Telescope. The fraction of close galaxy pairs in the sample is the proxy employed for the estimation of the merger activity. We identify 5 pairs and 1 triplet, enclosing a total of 13 galaxies, based on limits on projected separation and line-of-sight velocity difference. Of these systems, none show signs of ongoing interaction, and therefore we do not find any true mergers in our sample. This negative result sets a 1σ upper limit of 1.5% per Gyr for the major dry merger rate, consistent with the low rates expected in present-day clusters. Detailed examination of the images of all the RS galaxies in the sample reveals only one with low surface brightness features identifiable as the remnant of a past merger or interaction, implying a post-merger fraction below 2%.
THE UNUSUAL SUPER-LUMINOUS SUPERNOVAE SN 2011KL AND ASASSN-15LH
Authors: Bersten Melina C. , Benvenuto Omar G. , Orellana Mariana , Nomoto Ken’ichi 
Published: January 2016

ABSTRACT
Two recently discovered very luminous supernovae (SNe) present stimulating cases to explore the extents of the available theoretical models. SN 2011kl represents the first detection of a supernova explosion associated with an ultra-long duration gamma-ray burst. ASASSN-15lh was even claimed as the most luminous SN ever discovered, challenging the scenarios so far proposed for stellar explosions. Here we use our radiation hydrodynamics code in order to simulate magnetar-powered SNe. To avoid explicitly assuming neutron star properties, we adopt the magnetar luminosity and spin-down timescale as free parameters of the model. We find that the light curve (LC) of SN 2011kl is consistent with a magnetar power source, as previously proposed, but we note that some amount of 56Ni (

) is necessary to explain the low contrast between the LC peak and tail. For the case of ASASSN-15lh, we find physically plausible magnetar parameters that reproduce the overall shape of the LC provided the progenitor mass is relatively large (an ejecta mass of

). The ejecta hydrodynamics of this event is dominated by the magnetar input, while the effect is more moderate for SN 2011kl. We conclude that a magnetar model may be used for the interpretation of these events and that the hydrodynamical modeling is necessary to derive the properties of powerful magnetars and their progenitors.
SPATIALLY RESOLVED DUST MAPS FROM BALMER DECREMENTS IN GALAXIES AT z ∼ 1.4
Authors: Nelson Erica June , Dokkum Pieter G. van , Momcheva Ivelina G. , Brammer Gabriel B. , Wuyts Stijn , Franx Marijn , Schreiber Natascha M. Förster , Whitaker Katherine E. , Skelton Rosalind E. 
Published: January 2016

ABSTRACT
We derive average radial gradients in the dust attenuation toward H ii regions in 609 galaxies at z ∼ 1.4, using measurements of the Balmer decrement out to r ∼ 3 kpc. The Balmer decrements are derived from spatially resolved maps of Hα and Hβ emission from the 3D-HST survey. We find that with increasing stellar mass M both the normalization and strength of the gradient in dust attenuation increases. Galaxies with a mean mass of

M
⊙ have little dust attenuation at all radii, whereas galaxies with

M
⊙ have A
Hα
≈ 2 mag in their central regions. We parameterize this as

, with

, c = −1.9–2.2 log M
10, r in kpc, and M
10 the stellar mass in units of 1010
M
⊙. This expression can be used to correct spatially resolved measurements of Hα to radial distributions of star formation. When applied to our data, we find that the star formation rates (SFRs) in the central r < 1 kpc of galaxies in the highest mass bin are ∼6 M
⊙ yr−1, six times higher than before correction and approximately half of the total SFR of these galaxies. If this high central SFR is maintained for several Gyr, a large fraction of the stars in present-day bulges likely formed in situ.
Transmission, automaticité, limite
Authors: Bosc Patrice 
Published: January 2016

Ce texte pose les questions suivantes : qu’est-ce que transmettre, selon quel axe, vertical, horizontal ? Qu’est-ce que transmettre dans un contexte d’automatisation des procédés ? Quelle place pour l’homme ? Quelle est la place du corps et de la vie psychique dans la transmission ? Faut-il limiter la volonté de transmission ? La montée de procédures automatisées ne conduit-elle pas à la disparition de la transmission ?
De l’à-part à l’appartenance, la lecture et la transmission
Authors: Thorel Christian 
Published: January 2016

Dans un premier état, très différent, ce texte fit l’objet d’une intervention sur le thème de la « communauté » au Banquet du Livre à Lagrasse, en 2013. Profondément revu, le propos fut repris pour une conférence dans le cadre des Journées d’art thérapie sur le thème « Transmettre », organisées en mai 2015. Cette version, largement revue dans son écriture pour ce numéro d’ Empan , lie les deux thèmes de la transmission et de la communauté, qui pourraient répondre ensemble et de manière fusionnelle aux réflexions auxquelles nos métiers des livres nous invitent.
Le théâtre-forum met sur scène les sans-voix
Authors: Faucoup Yves 
Published: January 2016

Le théâtre-forum est une pratique, inventée par Augusto Boal, de plus en plus utilisée par des professionnels du secteur éducatif et social. Car il permet de mettre l’« usager » au cœur de l’action sociale, de le considérer pleinement comme citoyen. Outre la prise de parole qu’il facilite, le sentiment d’estime de soi et d’utilité qu’il instaure, les moyens de défense qu’il aide à repérer, il doit être perçu comme allant au-delà d’une simple pratique professionnelle intéressante : la philosophie qui l’anime pourrait judicieusement redynamiser toute l’action éducative et sociale afin qu’elle soit, conformément aux souhaits exprimés jadis par Nicole Questiaux, « réellement libératrice ».
Paroles d’anciens
Authors: Pépin Marie-Claude , Roucoules Alain 
Published: January 2016

Si la prise en charge éducative des jeunes dits aux comportements difficiles est souvent une gageure, elle engage, plus que toute autre, les professionnels à réfléchir au sens des pratiques éducatives et institutionnelles. Une autre démarche consiste à rencontrer des « anciens » des établissements, devenus adultes, et à échanger avec eux sur ces temps de leur vie partagés avec des éducateurs et des jeunes accueillis comme eux. Leurs paroles apportent une aide à la compréhension de ce qui se joue dans ces lieux et ces rencontres. Par delà, comment pourraient-ils être des « aidants », enrichissant l’actuel d’une institution de leur expérience d’hier ?
Quand la fiction aide les enfants
Authors: Denis Sophie E. 
Published: January 2016

L’enseignement du français au collège permet d’aborder de nombreuses problématiques qui agitent les enfants et adolescents d’origines diverses : inceste, homosexualité, drogue, image de soi, vie après la mort. L’étude de textes littéraires et la pratique du théâtre permettent un dialogue productif sur leur quête identitaire et les difficultés qu’ils rencontrent à l’école.
L’autoformation comme activité
Authors: Pécaud Sophie , Nagels Marc 
Published: January 2016

Cette étude approche l’autoformation selon un angle inédit, celui des stratégies cognitives et métacognitives développées par les personnes engagées dans un projet d’autoformation. Elle est fondée sur une démarche quasi expérimentale conduite dans deux médiathèques de Loire-Atlantique en mai et juin 2014, combinant des mises en situation, des observations et des entretiens. Le cadre théorique dans lequel s’inscrit l’analyse des données récoltées est celui de la conceptualisation dans l’action, et plus particulièrement de la didactique professionnelle. L’analyse s’attache ainsi à décrire et à caractériser les situations d’autoformation observées selon les grands concepts de la didactique professionnelle. Elle aboutit à des résultats nouveaux qui contribuent à une meilleure connaissance opérationnelle de l’autoformation, et indiquent des pistes pour un accompagnement plus efficace des pratiques d’autoformation.
El Sistema de Información de la Alhambra SIALH. Nuevas tecnologías en la tutela del Conjunto Monumental de la Alhambra y el Generalife
Authors: Villafranca María del Mar , Lamolda Francisco , Montufo Antonio Manuel , Pérez Lucía , Prados Belén 
Published: January 2016

<p>The SIALH project aims to set up the Information System of the Alhambra, considered as tool for the knowledge, management and dissemination of the Monument, considered World Heritage by UNESCO. Based on a Geographic Information System (GIS), SIALH integrates thematic databases, process management systems and electronic records management systems on a common framework. The methodology used in the project follows the standard Metrica v3 for software developments. SIALH is built using free software and ensures interoperability. In addition to software development, SIALH involves other projects such as the geocoding of the Alhambra, new maps and orthophotos and the publication of augmented reality of the Alhambra.</p>