bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Unique View of AGN-driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a Z = 2.4 High-metallicity Damped Lyα Absorber
Authors: Rudie Gwen C. , Newman Andrew B. , Murphy Michael T. 
Published: July 2017

Abstract
We report the discovery of a massive

log
(
M

/

M

⊙

)
=

10.74

−
0.16

+
0.18

galaxy at the same redshift as a carbon-monoxide-bearing sub-damped Lyα absorber (sub-DLA) seen in the spectrum of QSO J1439+1117. The galaxy, J1439B, is located 4.″7 from the QSO sightline, a projected distance of 38 physical kpc at z = 2.4189, and exhibits broad optical emission lines (

σ

[
O

III
]

=
303
±
12

km

s

−
1

) with ratios characteristic of excitation by an active galactic nucleus (AGN). The galaxy has a factor of ∼9 lower star formation than is typical of star-forming galaxies of the same mass and redshift. The nearby sub-DLA is highly enriched, suggesting its galactic counterpart must be massive if it follows the

z
∼
2

mass–metallicity relationship. Metallic absorption within the circumgalactic medium of the sub-DLA and J1439B is spread over a velocity range

Δ
v
>
1000

km

s

−
1

, suggesting an energetic origin. We explore the possibility that a different galaxy could be responsible for the rare absorber, and conclude that it is unlikely based on imaging, integral-field spectroscopy, and high-z massive galaxy pair statistics. We argue that the gas seen in absorption against the QSO was likely ejected from the galaxy J1439B and therefore provides a unique observational probe of AGN feedback in the distant universe.
Universal Dark Halo Scaling Relation for the Dwarf Spheroidal Satellites
Authors: Hayashi Kohei , Ishiyama Tomoaki , Ogiya Go , Chiba Masashi , Inoue Shigeki , Mori Masao 
Published: July 2017

Abstract
Motivated by a recently found interesting property of the dark halo surface density within a radius,

r

max

, giving the maximum circular velocity,

V

max

, we investigate it for dark halos of the Milky Way’s and Andromeda’s dwarf satellites based on cosmological simulations. We select and analyze the simulated subhalos associated with Milky-Way-sized dark halos and find that the values of their surface densities,

Σ

V

max

, are in good agreement with those for the observed dwarf spheroidal satellites even without employing any fitting procedures. Moreover, all subhalos on the small scales of dwarf satellites are expected to obey the universal relation, irrespective of differences in their orbital evolutions, host halo properties, and observed redshifts. Therefore, we find that the universal scaling relation for dark halos on dwarf galaxy mass scales surely exists and provides us with important clues for understanding fundamental properties of dark halos. We also investigate orbital and dynamical evolutions of subhalos to understand the origin of this universal dark halo relation and find that most subhalos evolve generally along the

r

max

∝

V

max

sequence, even though these subhalos have undergone different histories of mass assembly and tidal stripping. This sequence, therefore, should be the key feature for understanding the nature of the universality of

Σ

V

max

.
Can Dust Injected by SNe Explain the NIR–MIR Excess in Young Massive Stellar Clusters?
Authors: Martínez-González Sergio , Wünsch Richard , Palouš Jan 
Published: July 2017

Abstract
We present a physically motivated model involving the different processes affecting supernova dust grains as they are incorporated into the thermalized medium within young massive star clusters. The model is used to explain the near- to mid-infrared (NIR–MIR) excess found in such clusters and usually modeled as a blackbody with temperature

∼
(
400
–
1000
)

K. In our approach, dust grains are efficiently produced in the clumpy ejecta of core-collapse supernovae, shattered into small pieces (

≲
0.05

μm) as they are incorporated into the hot and dense ISM, heated via frequent collisions with electrons and the absorption of energetic photons. Grains with small sizes can more easily acquire the high temperatures (∼1000 K) required to produce an NIR–MIR excess with respect to the emission of foreground PAHs and starlight. However, the extreme conditions inside young massive clusters make it difficult for these small grains to have a persistent manifestation at NIR–MIR wavelengths as they are destroyed by efficient thermal sputtering. Nevertheless, the chances for a persistent manifestation are increased by taking into account that small grains become increasingly transparent to their impinging ions as their sizes decrease. For an individual SN event, we find that the NIR–MIR excess lasts longer if the time required to incorporate all the grains into the thermalized medium is also longer, and, in some cases, comparable to the characteristic interval between supernova explosions. Our models can successfully explain the near-infrared excesses found in the star clusters observed in M33 assuming a low heating efficiency and mass loading. In this scenario, the presence of the NIR–MIR excess is an indication of efficient dust production in SNe and its subsequent destruction.
Magnetic Flux Rope Shredding By a Hyperbolic Flux Tube: The Detrimental Effects of Magnetic Topology on Solar Eruptions
Authors: Chintzoglou Georgios , Vourlidas Angelos , Savcheva Antonia , Tassev Svetlin , Beltran Samuel Tun , Stenborg Guillermo 
Published: July 2017

Abstract
We present the analysis of an unusual failed eruption captured in high cadence and in many wavelengths during the observing campaign in support of the Very high Angular resolution Ultraviolet Telescope (VAULT2.0) sounding rocket launch. The refurbished VAULT2.0 is a Lyα (λ 1216 Å) spectroheliograph launched on 2014 September 30. The campaign targeted active region NOAA AR 12172 and was closely coordinated with the Hinode and IRIS missions and several ground-based observatories (NSO/IBIS, SOLIS, and BBSO). A filament eruption accompanied by a low-level flaring event (at the GOES C-class level) occurred around the VAULT2.0 launch. No coronal mass ejection was observed. The eruption and its source region, however, were recorded by the campaign instruments in many atmospheric heights ranging from the photosphere to the corona in high cadence and spatial resolution. This is a rare occasion that enabled us to perform a comprehensive investigation on a failed eruption. We find that a rising Magnetic Flux Rope (MFR)-like structure was destroyed during its interaction with the ambient magnetic field, creating downflows of cool plasma and diffuse hot coronal structures reminiscent of “cusps.” We employ magnetofrictional simulations to show that the magnetic topology of the ambient field is responsible for the destruction of the MFR. Our unique observations suggest that the magnetic topology of the corona is a key ingredient for a successful eruption.
The H i-to-H2 Transition in a Turbulent Medium
Authors: Bialy Shmuel , Burkhart Blakesley , Sternberg Amiel 
Published: July 2017

Abstract
We study the effect of density fluctuations induced by turbulence on the H i/H2 structure in photodissociation regions (PDRs) both analytically and numerically. We perform magnetohydrodynamic numerical simulations for both subsonic and supersonic turbulent gas and chemical H i/H2 balance calculations. We derive atomic-to-molecular density profiles and the H i column density probability density function (PDF) assuming chemical equilibrium. We find that, while the H i/H2 density profiles are strongly perturbed in turbulent gas, the mean H i column density is well approximated by the uniform-density analytic formula of Sternberg et al. The PDF width depends on (a) the radiation intensity–to–mean density ratio, (b) the sonic Mach number, and (c) the turbulence decorrelation scale, or driving scale. We derive an analytic model for the H i PDF and demonstrate how our model, combined with 21 cm observations, can be used to constrain the Mach number and driving scale of turbulent gas. As an example, we apply our model to observations of H i in the Perseus molecular cloud. We show that a narrow observed H i PDF may imply small-scale decorrelation, pointing to the potential importance of subcloud-scale turbulence driving.
Développement cognitif et apprentissage de l’anglais langue des affaires en IUT à travers le jeu : utilisation des mondes virtuels
Authors: Privas-Bréauté Virginie 
Published: July 2017

L’utilisation des mondes synthétiques dans le milieu de l'enseignement/apprentissage des langues reste encore controversée en France. Or, des recherches internationales (Jarmon et al. ; Wigham et Chanier) montrent la valeur éducative de ces dispositifs innovants laissant place à la créativité de l’apprenant et facilitant les apprentissages. Nous avons souhaité vérifier la valeur pédagogique de ces jeux vidéo sérieux, à travers une expérimentation menée auprès d’étudiants de 2ème année en DUT Gestion administrative et commerciale des organisations. Le dispositif utilisé a été le monde synthétique multi-joueurs multidimensionnel Second Life. Nous proposons de revenir, dans cet article, sur les points forts du dispositif lorsqu’il s'agit d'apprendre et/ou de consolider des compétences langagières et générales dans le cadre de cours d'anglais des affaires. Nous nous référons au paradigme de l'enaction développé par Francisco Varela et suggérons que la création d'avatars dans les mondes virtuels peut faciliter le développement cognitif des étudiants apprenant l’anglais.
Controle populacional de espécies silvestres invasoras por meio de laqueadura e vasectomia: relato de caso em primatas da espécie Callithrix penicillata
Authors: Fragôso da Silva Davi , Barboza da Silva Elisângela , Preturlon Terra André 
Published: July 2017

Saguis-de-tufo-preto (Callithrix penicillata) são consideradas espécies invasoras em regiões do sul e sudeste do Brasil. Espécies invasoras interferem com a dinâmica do ecossistema em áreas as quais foram introduzidas. A hibridização, a competição e a predação de outros animais são alguns dos problemas causados por estes calitriquídeos. A esterilização de primatas que se encontram em Centros de Recuperação para Animais Silvestres é um procedimento necessário que visa o controle populacional da espécie quando são destinadas para soltura. Técnicas como a de laqueadura e vasectomia, que preservam as glândulas sexuais que são imprescindíveis nestes primatas, pois necessitam de sua produção hormonal para se estabelecer e viver em grupos na natureza. Sendo assim, objetivou-se descrever a técnica cirúrgica de esterilização de um macho e uma fêmea da espécie C. penicillata.
O tratamento da heterogeneidade em uma pedagogia coletiva: maneiras de fazer de professoras alfabetizadoras
Authors: Torres da Silva Nayanne Nayara , Silva Alexsandro da 
Published: July 2017

O presente estudo insere-se no âmbito das discussões sobre saberes e práticas de professores no atendimento à heterogeneidade de conhecimentos sobre a leitura e a escrita dos aprendizes. Nessa direção, buscamos compreender as ações mobilizadas por alfabetizadoras para, em meio as situações coletivas e padronizadas de ensino, tratar as necessidades de aprendizagem de alguns alunos. Para isso, analisamos as práticas de duas professoras do 1º ano do Ensino Fundamental da rede municipal de ensino da cidade de Caruaru-PE, Brasil, adotando, como caminho teórico-metodológico, a abordagem qualitativa de pesquisa. Os dados da investigação, tratados por meio da análise temática de conteúdo e obtidos por meio de entrevistas semiestruturadas e de observações em sala de aula, evidenciaram a utilização de alguns “esquemas de ação” e “táticas” por parte das professoras para, em meio às situações coletivas e padronizadas de ensino, atender às necessidades de alguns alunos.
Patterns in woody vegetation structure across African savannas
Authors: Axelsson Christoffer R. , Hanan Niall P. 
Published: July 2017

Abstract. Vegetation structure in water-limited systems is to a large degree controlled by ecohydrological processes, including mean annual precipitation (MAP) modulated by the characteristics of precipitation and geomorphology that collectively determine how rainfall is distributed vertically into soils or horizontally in the landscape. We anticipate that woody canopy cover, crown density, crown size, and the level of spatial aggregation among woody plants in the landscape will vary across environmental gradients. A high level of woody plant aggregation is most distinct in periodic vegetation patterns (PVPs), which emerge as a result of ecohydrological processes such as runoff generation and increased infiltration close to plants. Similar, albeit weaker, forces may influence the spatial distribution of woody plants elsewhere in savannas. Exploring these trends can extend our knowledge of how semi-arid vegetation structure is constrained by rainfall regime, soil type, topography, and disturbance processes such as fire. Using high-spatial-resolution imagery, a flexible classification framework, and a crown delineation method, we extracted woody vegetation properties from 876 sites spread over African savannas. At each site, we estimated woody cover, mean crown size, crown density, and the degree of aggregation among woody plants. This enabled us to elucidate the effects of rainfall regimes (MAP and seasonality), soil texture, slope, and fire frequency on woody vegetation properties. We found that previously documented increases in woody cover with rainfall is more consistently a result of increasing crown size than increasing density of woody plants. Along a gradient of mean annual precipitation from the driest (< 200 mm yr−1) to the wettest (1200–1400 mm yr−1) end, mean estimates of crown size, crown density, and woody cover increased by 233, 73, and 491 % respectively. We also found a unimodal relationship between mean crown size and sand content suggesting that maximal savanna tree sizes do not occur in either coarse sands or heavy clays. When examining the occurrence of PVPs, we found that the same factors that contribute to the formation of PVPs also correlate with higher levels of woody plant aggregation elsewhere in savannas and that rainfall seasonality plays a key role for the underlying processes.
Modification of the RothC model to simulate soil C mineralization of exogenous organic matter
Authors: Mondini Claudio , Cayuela Maria Luz , Sinicco Tania , Fornasier Flavio , Galvez Antonia , Sánchez-Monedero Miguel Angel 
Published: July 2017

Abstract. The development of soil organic C (SOC) models capable of producing accurate predictions for the long-term decomposition of exogenous organic matter (EOM) in soils is important for the effective management of organic amendments. However, reliable C modeling in amended soils requires specific optimization of current C models to take into account the high variability in EOM origin and properties. The aim of this work was to improve the prediction of C mineralization rates in amended soils by modifying the RothC model to encompass a better description of EOM quality. The standard RothC model, involving C input to the soil only as decomposable (DPM) or resistant (RPM) organic material, was modified by introducing additional pools of decomposable (DEOM), resistant (REOM) and humified (HEOM) EOM. The partitioning factors and decomposition rates of the additional EOM pools were estimated by model fitting to the respiratory curves of amended soils. For this task, 30 EOMs from 8 contrasting groups (compost, anaerobic digestates, sewage sludge, agro-industrial waste, crop residues, bioenergy by-products, animal residues and meat and bone meals) were added to 10 soils and incubated under different conditions. The modified RothC model was fitted to C mineralization curves in amended soils with great accuracy (mean correlation coefficient 0.995). In contrast to the standard model, the EOM-optimized RothC was able to better accommodate the large variability in EOM source and composition, as indicated by the decrease in the root mean square error of the simulations for different EOMs (from 29.9 to 3.7 % and 20.0 to 2.5 % for soils amended with bioethanol residue and household waste compost, respectively). The average decomposition rates for DEOM and REOM pools were 89 and 0.4 yr−1, higher than the standard model coefficients for DPM (10 yr−1) and RPM (0.3 yr−1). The results indicate that the explicit treatment of EOM heterogeneity enhances the model ability to describe amendment decomposition under laboratory conditions and provides useful information to improve C modeling on the effects of different EOM on C dynamics in agricultural soils. Future research will involve the validation of the modified model with field data and its application in the long-term simulation of SOC patterns in amended soil at regional scales under climate change.
Emission metrics for quantifying regional climate impacts of aviation
Authors: Lund Marianne T. , Aamaas Borgar , Berntsen Terje , Bock Lisa , Burkhardt Ulrike , Fuglestvedt Jan S. , Shine Keith P. 
Published: July 2017

Abstract. This study examines the impacts of emissions from aviation in six source regions on global and regional temperatures. We consider the NOx-induced impacts on ozone and methane, aerosols and contrail-cirrus formation and calculate the global and regional emission metrics global warming potential (GWP), global temperature change potential (GTP) and absolute regional temperature change potential (ARTP). The GWPs and GTPs vary by a factor of 2–4 between source regions. We find the highest aviation aerosol metric values for South Asian emissions, while contrail-cirrus metrics are higher for Europe and North America, where contrail formation is prevalent, and South America plus Africa, where the optical depth is large once contrails form. The ARTP illustrate important differences in the latitudinal patterns of radiative forcing (RF) and temperature response: the temperature response in a given latitude band can be considerably stronger than suggested by the RF in that band, also emphasizing the importance of large-scale circulation impacts. To place our metrics in context, we quantify temperature change in four broad latitude bands following 1 year of emissions from present-day aviation, including CO2. Aviation over North America and Europe causes the largest net warming impact in all latitude bands, reflecting the higher air traffic activity in these regions. Contrail cirrus gives the largest warming contribution in the short term, but remain important at about 15 % of the CO2 impact in several regions even after 100 years. Our results also illustrate both the short- and long-term impacts of CO2: while CO2 becomes dominant on longer timescales, it also gives a notable warming contribution already 20 years after the emission. Our emission metrics can be further used to estimate regional temperature change under alternative aviation emission scenarios. A first evaluation of the ARTP in the context of aviation suggests that further work to account for vertical sensitivities in the relationship between RF and temperature response would be valuable for further use of the concept.
Nietzsche on Honor and Empathy
Authors: Ganesh Akshay 
Published: July 2017

Abstract
My aim here is to contribute to the literature about Nietzsche's exemplars by excavating two undertreated but important themes in Nietzsche: first, his investment in the value of honor, which unifies many strands of thought in his ethics and his criticism of Christian morality, and second, his account of and investment in our capacity for empathy. I demonstrate Nietzsche's consistent preoccupation with honor, and give a specific account of what he means by it and why he is invested in it, offering some new additions to accounts of familiar Nietzschean themes along the way. I then describe Nietzsche's account of empathy and offer some remarks on its connection to honor in the case of the higher type. I conclude by setting out some implications the addition of these two concepts to our conception of Nietzsche's central concerns might have for philosophers.
Relación entre el grado de satisfacción y el nivel de estrés identificado en padres y madres con hijos ingresados en una unidad de cuidado intensivo neonatal
Authors: Sánchez Veracruz Mª José , Leal Costa César , Pastor Rodríguez Jesús David , Díaz Agea José Luis 
Published: July 2017

<p><strong></strong><strong><br /></strong>Objetivos: Identificar la relación existente entre el grado de estrés y el nivel de satisfacción, y analizar qué aspectos influyen en la percepción de estrés general en los padres y madres con hijos ingresados en UCIN.<br />Método. Estudio descriptivo transversal realizado sobre una muestra de 24 madres/padres. Como instrumentos de evaluación se utilizaron un cuestionario de variables sociobiodemográficas elaborado “ad hoc”, la escala de estrés parental: Unidad de Cuidado Intensivo Neonatal (PSS: NICU) y el cuestionario sobre la calidad de la atención hospitalaria (SERVQHOS). <br />Resultados. Se observan diferencias estadísticamente significativas entre algunas variables sociobiodemográficas y las dimensiones de la escala PSS: NICU y del cuestionario SERVQHOS. Las variables que mejor predijeron el estrés general fueron las dimensiones Aspecto y comportamiento del recién nacido (AC) y papel de la madre (PM) (R2 = 0,357; F (2,21) = 5,822; p = 0,010).<br />Conclusiones. Promover una adecuada comunicación entre los profesionales y los padres/madres con hijos ingresados en una UCIN, hace que aumente en ellos el grado de satisfacción; sin embargo, esto no provoca una disminución del estrés general. Las variables que más influyen sobre los niveles de estrés general son las alteraciones en el aspecto/comportamiento del bebé y el papel de la madre.<strong> <br /><br /><br /></strong></p>
Relatos de vida e fotografia de pacientes sedados em UTI: estratégia de humanização possível?
Authors: Da Silva Ribeiro Cristina Aparecida Pereira , Trovo Monica Martins , Puggina Ana Cláudia 
Published: July 2017

bjetivos: (1) Identificar la influencia del contexto del paciente sedado a través de las historias de vida y fotografía en la percepción del cuidar del personal de enfermería y (2) evaluar la intervención que se propone como una estrategia de humanización para cuidar al paciente sedado.<br />Método: Investigación cualitativa de intervención con 43 profesionales del equipo de enfermería de una Unidad de Cuidados Intensivos. La colecta de datos consistió en una entrevista previa, la intervención (fijación de los cuadros de los pacientes sedados en la cabecera y orientación para que los profesionales los leyesen; la intervención duró 10 días) y entrevista posterior a la intervención. Tres cuadros fueron fijados, que contenían las fotos y las historias de vida de los pacientes planteadas por sus familias. <br />Resultados: En la pre-intervención, los discursos mostraron que la interacción verbal aporta una mayor seguridad durante el cuidado, hay razones para la preferencia del cuidado de los pacientes inconscientes, como el reto de la complejidad y la recompensa de la recuperación, como la no disponibilidad para cumplir con las solicitudes frecuentesdel paciente, la atención se valora independientemente del nivel de conciencia, el conocimiento sobre los aspectos de la vida del paciente mejora el compromiso y existe la preocupación de no juzgar al paciente y rescatar lo mejor del otro. En la post-intervención se encontró que el contexto del paciente rescató elementos importantes para el cuidado como la emoción, promoviendo sensibilidad, el despertar de la empatía con la contextualización, la implicación y el compromiso con el cuidado, por otra parte era evidente el conflicto entre el cambio actitud y salir a la defensiva. <br />Conclusión: La intervención propuesta ha sido validada como una estrategia para humanizar la atención de los pacientes sedados.<br /><br /><br />