bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of porosity models for fluidized beds
Authors: Flamarz Sherko Ahmed 
Published: September 2017

The paper describes a comparison between four numerical models of porosity, for better understanding the influence of porosity on the hydrodynamics (macroscopic and microscopic) behaviors of fluidized beds. The study has been done through an approach based on combine discrete-continuum to achieve the simulations. This approach deals with the modeling of the interactions between the fluid-solid. In which the discrete approach is used for localizing the position and velocity of each individual particles based on Newton’s 2nd law of motion, using a numerical time stepping scheme. While the continuum approach is based on finite volume method, which is solved the fluid flow equations (Navier-Stokes equations). The geometry of fluidizing column was; column diameter (D=0.096 m) and column height (H=1 m). Glass grains were firstly deposited inside the column, and then subjected to the range of inlet water velocity (0-0.14 m.s-1). The results of simulations are point out those four models of porosity, achieved comparable results for simulating fluidized beds. The simulations results were compared and showed a good agreement and consistency with the experimental data in the literatures. In other hand, the simulations results revealed that the models of porosity, which based on the microscopic scale, are most reliable between the models of porosity. However the differences between these models must be analyzed and kept in mind in order to select the appropriate porosity model. The results revealed that the porosity is an important parameter which effect on the hydrodynamics behavior of fluidized beds during the fluidization processes.
Justo García Soriano, Los dos "don Quijotes". Investigaciones acerca de la génesis de "El ingenioso hidalgo" y de quién pudo ser Avellaneda. Toledo, 1944, 292 págs. numeradas.
Authors: Avalle-Arce Juan Bautista 
Published: September 2017

Se reseñó el libro: Los dos "don Quijotes". Investigaciones acerca de la génesis de "El ingenioso hidalgo" y de quién pudo ser Avellaneda.
Development of single‐copy nuclear intron markers for species‐level phylogenetics: Case study with Paullinieae (Sapindaceae)1
Authors: Chery Joyce G. , Sass Chodon , Specht Chelsea D. 
Published: September 2017

Premise of the study:We developed a bioinformatic pipeline that leverages a publicly available genome and published transcriptomes to design primers in conserved coding sequences flanking targeted introns of single‐copy nuclear loci. Paullinieae (Sapindaceae) is used to demonstrate the pipeline.Methods and Results:Transcriptome reads phylogenetically closer to the lineage of interest are aligned to the closest genome. Single‐nucleotide polymorphisms are called, generating a “pseudoreference” closer to the lineage of interest. Several filters are applied to meet the criteria of single‐copy nuclear loci with introns of a desired size. Primers are designed in conserved coding sequences flanking introns. Using this pipeline, we developed nine single‐copy nuclear intron markers for Paullinieae.Conclusions:This pipeline is highly flexible and can be used for any group with available genomic and transcriptomic resources. This pipeline led to the development of nine variable markers for phylogenetic study without generating sequence data de novo.
Fungus‐specific SSR markers in the Antarctic lichens Usnea antarctica and U. aurantiacoatra (Parmeliaceae, Ascomycota)1
Authors: Lagostina Elisa , Dal Grande Francesco , Ott Sieglinde , Printzen Christian 
Published: September 2017

Premise of the study:Usnea antarctica and U. aurantiacoatra (Parmeliaceae) are common lichens in the maritime Antarctic. These species share the same habitats on King George Island (South Shetland Islands, Antarctica) and are distinguishable based on reproductive strategies.Methods and Results:We developed 23 fungus‐specific simple sequence repeat (SSR) markers that cross‐amplify between the two species. We used a low‐coverage genome‐skimming approach on one sample of each species to identify SSR repeats in the two species. Primers were designed for 3–4‐bp repeats, and only the loci common to both species were selected for further analyses. Seventy‐seven samples of the two species were selected to assess fungal specificity, genetic variability, and linkage of the markers. In addition, we tested cross‐amplification in other Usnea species.Conclusions:The 23 newly designed SSR markers are suitable for population genetic and phylogeographic studies of Usnea species.
The Young Substellar Companion ROXs 12 B: Near-infrared Spectrum, System Architecture, and Spin–Orbit Misalignment*
Authors: Bowler Brendan P. , Kraus Adam L. , Bryan Marta L. , Knutson Heather A. , Brogi Matteo , Rizzuto Aaron C. , Mace Gregory N. , Vanderburg Andrew , Liu Michael C. , Hillenbrand Lynne A. , Cieza Lucas A. 
Published: September 2017

Abstract
ROXs 12 (2MASS J16262803–2526477) is a young star hosting a directly imaged companion near the deuterium-burning limit. We present a suite of spectroscopic, imaging, and time-series observations to characterize the physical and environmental properties of this system. Moderate-resolution near-infrared spectroscopy of ROXs 12 B from Gemini-North/NIFS and Keck/OSIRIS reveals signatures of low surface gravity including weak alkali absorption lines and a triangular H-band pseudocontinuum shape. No signs of Paβ emission are evident. As a population, however, we find that about half (46% ± 14%) of young (≲15 Myr) companions with masses ≲20 M
Jup possess actively accreting subdisks detected via Paβ line emission, which represents a lower limit on the prevalence of circumplanetary disks in general, as some are expected to be in a quiescent phase of accretion. The bolometric luminosity of the companion and age of the host star (

Myr) imply a mass of 17.5 ± 1.5 M
Jup for ROXs 12 B based on hot-start evolutionary models. We identify a wide (5100 au) tertiary companion to this system, 2MASS J16262774–2527247, that is heavily accreting and exhibits stochastic variability in its K2 light curve. By combining v sin i
* measurements with rotation periods from K2, we constrain the line-of-sight inclinations of ROXs 12 A and 2MASS J16262774–2527247 and find that they are misaligned by

. In addition, the orbital axis of ROXs 12 B is likely misaligned from the spin axis of its host star, ROXs 12 A, suggesting that ROXs 12 B formed akin to fragmenting binary stars or in an equatorial disk that was torqued by the wide stellar tertiary.
Optimization of Positioning of Interferometric Array Antennas Using Division Algorithm for Radio Astronomy Applications
Authors: Kiehbadroudinezhad Shahideh , Valente Daniela , Cada Michael , Noordin Nor Kamariah , Shahabi Adib 
Published: September 2017

Abstract
The Square Kilometre Array (SKA) ushers in the new generation of large radio telescopes that will work at wavelengths between meters and centimeters. In order to competitively design interferometric antenna arrays such as SKA, it is crucial to focus on the optimization of system performance. In this paper, we contribute to the solution by introducing a new optimization algorithm called Division Algorithm (DA). This algorithm finds the optimal positions of antennas to simultaneously maximize u–v coverage and decrease sidelobe level (SLL). The DA is able to optimize the configuration of the interferometric array in both snapshot and Earth rotation synthesis observations. To demonstrate its efficiency, the DA is applied to configure an optimum 30-element array for the Giant Metrewave Radio Telescope. The proposed algorithm is able to improve the overlapped samples parameter by about 4% and the unsampled cells parameter by about 12%, at snapshot observation, compared to the Genetic Algorithm (GA). DA is able to improve these two parameters for a 6-hr tracking observation as well. Finally, the proposed algorithm is compared with the GA for different source declination. Results show that the DA is able to decrease the SLL better than the GA.
Peering Through the Dust. II. XMM-Newton Observations of Two Additional FIRST-2MASS Red Quasars
Authors: Glikman Eilat , LaMassa Stephanie , Piconcelli Enrico , Urry Meg , Lacy Mark 
Published: September 2017

Abstract
We obtained XMM-Newton observations of two highly luminous dust-reddened quasars, F2M1113+1244 and F2M1656+3821, that appear to be in the early, transitional phase predicted by merger-driven models of quasar/galaxy co-evolution. These sources have been well studied at optical through mid-infrared wavelengths and are growing relatively rapidly, with Eddington ratios

. Their black hole masses are relatively small compared to their host galaxies, placing them below the

relation. We find that for both sources, an absorbed power-law model with 1%–3% of the intrinsic continuum scattered or leaked back into the line of sight best fits their X-ray spectra. We measure the absorbing column density (N

H
) and constrain the dust-to-gas ratios in these systems, finding that they lie well below the Galactic value. This, combined with the presence of broad emission lines in their optical and near-infrared spectra, suggests that the dust absorption occurs far from the nucleus and in the host galaxy, while the X-rays are mostly absorbed in the nuclear, dust-free region within the sublimation radius. We also compare the quasars’ absorption-corrected, rest-frame X-ray luminosities (2–10 keV) to their rest-frame infrared luminosities (6 μm) and find that red quasars, similar to other populations of luminous obscured quasars, are either underluminous in X-rays or overluminous in the infrared.
First Weak-lensing Results from “See Change”: Quantifying Dark Matter in the Two z ≳ 1.5 High-redshift Galaxy Clusters SPT-CL J2040–4451 and IDCS J1426+3508
Authors: Jee M. James , Ko Jongwan , Perlmutter Saul , Gonzalez Anthony , Brodwin Mark , Linder Eric , Eisenhardt Peter 
Published: September 2017

Abstract
We present a weak-lensing study of SPT-CL J2040–4451 and IDCS J1426+3508 at z = 1.48 and 1.75, respectively. The two clusters were observed in our “See Change” program, a Hubble Space Telescope survey of 12 massive high-redshift clusters aimed at high-z supernova measurements and weak-lensing estimation of accurate cluster masses. We detect weak but significant galaxy shape distortions using infrared images from the Wide Field Camera 3 (WFC3), which has not yet been used for weak-lensing studies. Both clusters appear to possess relaxed morphology in projected mass distribution, and their mass centroids agree nicely with those defined by both the galaxy luminosity and X-ray emission. Using a Navarro–Frenk–White profile, for which we assume that the mass is tightly correlated with the concentration parameter, we determine the masses of SPT-CL J2040–4451 and IDCS J1426 + 3508 to be

and

, respectively. The weak-lensing mass of SPT-CL J2040–4451 shows that the cluster is clearly a rare object. Adopting the central value, the expected abundance of such a massive cluster at

is only

in the parent 2500 sq. deg. survey. However, it is yet premature to claim that the presence of this cluster creates a serious tension with the current ΛCDM paradigm unless that tension will remain in future studies after marginalizing over many sources of uncertainties such as the accuracy of the mass function and the mass–concentration relation at the high-mass end. The mass of IDCS J1426+3508 is in excellent agreement with our previous Advanced Camera for Surveys-based weak-lensing result, while the much higher source density from our WFC3 imaging data makes the current statistical uncertainty

% smaller.
Analytical Core Mass Function (CMF) from Filaments: Under Which Circumstances Can Filament Fragmentation Reproduce the CMF?
Authors: Lee Yueh-Ning , Hennebelle Patrick , Chabrier Gilles 
Published: September 2017

Abstract
Observations suggest that star formation in filamentary molecular clouds occurs in a two-step process, with the formation of filaments preceding that of prestellar cores and stars. Here, we apply the gravoturbulent fragmentation theory of Hennebelle & Chabrier to a filamentary environment, taking into account magnetic support. We discuss the induced geometrical effect on the cores, with a transition from 3D geometry at small scales to 1D at large ones. The model predicts the fragmentation behavior of a filament for a given mass per unit length (MpL) and level of magnetization. This core mass function (CMF) for individual filaments is then convolved with the distribution of filaments to obtain the final system CMF. The model yields two major results. (i) The filamentary geometry naturally induces a hierarchical fragmentation process, first into groups of cores, separated by a length equal to a few filament Jeans lengths, i.e., a few times the filament width. These groups then fragment into individual cores. (ii) Non-magnetized filaments with high MpL are found to fragment excessively, at odds with observations. This is resolved by taking into account the magnetic field (treated simply as additional pressure support). The present theory suggests two complementary modes of star formation: although small (spherical or filamentary) structures will collapse directly into prestellar cores, according to the standard Hennebelle–Chabrier theory, the large (filamentary) ones, the dominant population according to observations, will follow the aforedescribed two-step process.
Halo Nonlinear Reconstruction
Authors: Yu Yu , Zhu Hong-Ming , Pen Ue-Li 
Published: September 2017

Abstract
We apply the nonlinear reconstruction method to simulated halo fields. For halo number density

at z = 0, corresponding to the SDSS main sample density, we find that the scale where the noise saturates the linear signal is improved to

, which is a factor of 2.29 improvement in scale, or 12 in number of linear modes. The improvement is less for higher redshift or lower halo density. We expect this to substantially improve the BAO accuracy of dense, low-redshift surveys, including the SDSS main sample, 6dFGS and 21 cm intensity mapping initiatives.
Dispersive Evolution of Nonlinear Fast Magnetoacoustic Wave Trains
Authors: Pascoe D. J. , Goddard C. R. , Nakariakov V. M. 
Published: September 2017

Abstract
Quasi-periodic rapidly propagating wave trains are frequently observed in extreme ultraviolet observations of the solar corona, or are inferred by the quasi-periodic modulation of radio emission. The dispersive nature of fast magnetohydrodynamic waves in coronal structures provides a robust mechanism to explain the detected quasi-periodic patterns. We perform 2D numerical simulations of impulsively generated wave trains in coronal plasma slabs and investigate how the behavior of the trapped and leaky components depend on the properties of the initial perturbation. For large amplitude compressive perturbations, the geometrical dispersion associated with the waveguide suppresses the nonlinear steepening for the trapped wave train. The wave train formed by the leaky components does not experience dispersion once it leaves the waveguide and so can steepen and form shocks. The mechanism we consider can lead to the formation of multiple shock fronts by a single, large amplitude, impulsive event and so can account for quasi-periodic features observed in radio spectra.
Quand l’humanitaire est payant
Authors: Delpierre Alizée 
Published: September 2017

Depuis le milieu et la fin des années 1990 se développent en Amérique du Nord et en Grande Bretagne un type d’entreprise de séjours de volontariat dit « humanitaire ». Ces entreprises visent une clientèle particulièrement jeune et aisée, désireuse de « faire de l’humanitaire », mais qui n’a pas forcément les compétences requises pour travailler dans une ONG. Si les « touristes humanitaires » attendent beaucoup de cette expérience, ils sont souvent déçus de ne pas faire ce qu’ils estiment être du « vrai » humanitaire ; la visée humanitaire se perd progressivement tout au long du voyage, les volontaires s’adonnant à des loisirs touristiques plus communs. Cependant, ils auront bénéficié du label humanitaire, valorisable à leur retour sur le marché scolaire et professionnel, mais également sur le plan identitaire. L’humanitaire monétairement payant (au sens de « coûteux ») se mue ainsi en humanitaire sociologiquement payant (au sens de ce qu’il rapporte).
Négocier les frontières
Authors: Lee Hyunok 
Published: September 2017

L’article explore la façon dont la migration des femmes recoupe le travail rémunéré ou non-rémunéré des femmes, ce qui ne peut être séparé de l’organisation de la force de travail et du travail reproductif au sein d’institutions sociales comme le marché du travail ou la famille. La question se pose d’autant plus que des types de migration différents, en termes d’échelle et de but poursuivi, interviennent dans le parcours de vie des femmes migrantes : il peut ainsi s’agir initialement d’une migration rurale-urbaine, puis d’une migration internationale liée d’abord au mariage puis au travail. En examinant, sur la base de deux recherches de terrain menées en 2007-2008 et 2011-2012, le parcours de vie de migrantes vietnamiennes mariées en Corée du Sud, l’article montre la manière dont ces choix migratoires sont liés au contexte du développement économique national du Vietnam, des changements socio-démographiques post-industriels en Corée du Sud et des inquiétudes grandissantes sur la reproduction sociale dans les pays d’Asie de l’Est. Ce travail contribue ainsi aux débats sur la relation entre développement, reproduction sociale et migration genrée.
Green Tea Polyphenol EGCG Upregulates Tollip Expression by Suppressing Elf-1 Expression
Authors: Kumazoe Motofumi , Yamashita Mai , Nakamura Yuki , Takamatsu Kanako , Bae Jaehoon , Yamashita Shuya , Yamada Shuhei , Onda Hiroaki , Nojiri Takashi , Kangawa Kenji , Tachibana Hirofumi 
Published: September 2017

Abstract
TLR signaling is critical to innate immune system regulation; however, aberrant TLR signaling is involved in several diseases, including insulin resistance, Alzheimer’s disease, and tumor metastasis. Moreover, a recent study found that TLR-4 signaling pathway inhibition might be a target for the suppression of chronic inflammatory disorders. In this article, we show that the green tea polyphenol epigallocatechin-3-O-gallate (EGCG) increases the expression of Toll interacting protein, a strong inhibitor of TLR4 signaling, by suppressing the expression of E74-like ETS transcription factor 1 (Elf-1). A mechanistic study revealed that EGCG suppressed Elf-1 expression via protein phosphatase 2A/cyclic GMP (cGMP)-dependent mechanisms. We also confirmed that orally administered EGCG and a cGMP inducer upregulated Toll interacting protein expression, increased intracellular levels of cGMP in macrophages, and suppressed Elf-1 expression. These data support EGCG and a cGMP inducer as potential candidate suppressors of TLR4 signaling.
Type III IFNs Are Commonly Induced by Bacteria-Sensing TLRs and Reinforce Epithelial Barriers during Infection
Authors: Odendall Charlotte , Voak Andrew A. , Kagan Jonathan C. 
Published: September 2017

Abstract
Type III IFNs (IFN-λs) are secreted factors that are well-known for their antiviral activities. However, their regulation and functions during bacterial infections are unclear. In this article, we report that the regulation of IFN-λ genes did not track with mechanisms that control type I IFN expression in response to TLRs. Whereas type I IFNs were only expressed from TLRs present on endosomes, type III IFNs could be induced by TLRs that reside at the plasma membrane and that detect various bacterial products. The mechanisms that regulate type III IFN gene expression tracked with those that promote inflammatory cytokine and chemokine expression. Importantly, rIFN-λs enhanced epithelial barriers in vitro, preventing transcellular bacteria dissemination. We therefore propose that in addition to their functions in cell-intrinsic antiviral immunity, type III IFNs protect epithelial barrier integrity, an activity that would benefit the host during any infectious encounter.
CD151 Expression Is Associated with a Hyperproliferative T Cell Phenotype
Authors: Seu Lillian , Tidwell Christopher , Timares Laura , Duverger Alexandra , Wagner Frederic H. , Goepfert Paul A. , Westfall Andrew O. , Sabbaj Steffanie , Kutsch Olaf 
Published: September 2017

Abstract
The tetraspanin CD151 is a marker of aggressive cell proliferation and invasiveness for a variety of cancer types. Given reports of CD151 expression on T cells, we explored whether CD151 would mark T cells in a hyperactivated state. Consistent with the idea that CD151 could mark a phenotypically distinct T cell subset, it was not uniformly expressed on T cells. CD151 expression frequency was a function of the T cell lineage (CD8 &gt; CD4) and a function of the memory differentiation state (naive T cells &lt; central memory T cells &lt; effector memory T cells &lt; T effector memory RA+ cells). CD151 and CD57, a senescence marker, defined the same CD28− T cell populations. However, CD151 also marked a substantial CD28+ T cell population that was not marked by CD57. Kinome array analysis demonstrated that CD28+CD151+ T cells form a subpopulation with a distinct molecular baseline and activation phenotype. Network analysis of these data revealed that cell cycle control and cell death were the most altered process motifs in CD28+CD151+ T cells. We demonstrate that CD151 in T cells is not a passive marker, but actively changed the cell cycle control and cell death process motifs of T cells. Consistent with these data, long-term T cell culture experiments in the presence of only IL-2 demonstrated that independent of their CD28 expression status, CD151+ T cells, but not CD151− T cells, would exhibit an Ag-independent, hyperresponsive proliferation phenotype. Not unlike its reported function as a tumor aggressiveness marker, CD151 in humans thus marks and enables hyperproliferative T cells.
El proceso de gestión de la RSC. Estudio de caso
Authors: Barrio Fraile Estrella , Enrique Jiménez Ana María , Benavides Delgado Juan 
Published: September 2017

Estamos ante un momento de cambio en el contexto empresarial, lo cual repercute en el comportamiento de las organizaciones con la sociedad, que a través de una adecuada gestión de la Responsabilidad Social Corporativa (RSC) da respuesta a los intereses de sus stakeholders. Metodología: El objetivo de esta investigación es analizar, mediante el estudio de caso Unilever España, cómo se articulan las diferentes fases del proceso de gestión de la RSC. Resultados y conclusiones: Los resultados muestran que el desarrollo de las diferentes fases tiene consecuencias en la propia naturaleza de la gestión de la RSC, siendo las principales: la transversalidad, la transparencia y el dinamismo. Esta investigación también supone una aportación interesante en la gestión de los valores de consumo (asociados a una marca producto) y su relación con los intangibles de la compañía.