bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Maximum Entropy Limit of Small-scale Magnetic Field Fluctuations in the Quiet Sun
Authors: Gorobets A. Y. , Berdyugina S. V. , Riethmüller T. L. , Rodríguez J. Blanco , Solanki S. K. , Barthol P. , Gandorfer A. , Gizon L. , Hirzberger J. , Noort M. van , Del Toro Iniesta J. C. , Suárez D. Orozco , Schmidt W. , Pillet V. Martínez , Knölker M. 
Published: November 2017

Abstract
The observed magnetic field on the solar surface is characterized by a very complex spatial and temporal behavior. Although feature-tracking algorithms have allowed us to deepen our understanding of this behavior, subjectivity plays an important role in the identification and tracking of such features. In this paper, we continue studies of the temporal stochasticity of the magnetic field on the solar surface without relying either on the concept of magnetic features or on subjective assumptions about their identification and interaction. We propose a data analysis method to quantify fluctuations of the line-of-sight magnetic field by means of reducing the temporal field’s evolution to the regular Markov process. We build a representative model of fluctuations converging to the unique stationary (equilibrium) distribution in the long time limit with maximum entropy. We obtained different rates of convergence to the equilibrium at fixed noise cutoff for two sets of data. This indicates a strong influence of the data spatial resolution and mixing-polarity fluctuations on the relaxation process. The analysis is applied to observations of magnetic fields of the relatively quiet areas around an active region carried out during the second flight of the Sunrise/IMaX and quiet Sun areas at the disk center from the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory satellite.
A Catalog of 44 GHz Methanol Masers in Massive Star-forming Regions. IV. The High-mass Protostellar Object Sample
Authors: Rodríguez-Garza C. B. , Kurtz S. E. , Gómez-Ruiz A. I. , Hofner P. , Araya E. D. , Kalenskii S. V. 
Published: November 2017

Abstract
We present a survey of 56 massive star-forming regions in the 44 GHz methanol maser transition made with the Karl G. Jansky Very Large Array (VLA); 24 of the 56 fields showed maser emission. The data allow us to demonstrate associations, at arcsecond precision, of the Class I maser emission with outflows, H ii regions, and shocks traced by 4.5 μm emission. We find a total of 83 maser components with line widths ranging from 0.17 to 3.3 km s−1, with a nearly flat distribution and a median value of 1.1 km s−1. The relative velocities of the masers with respect to the systemic velocity of the host clouds range from −2.5 to 3.1 km s−1, with a distribution peaking near zero. We also study the correlation between the masers and the so-called extended green objects (EGOs) from the GLIMPSE survey. Multiple sources in each field are revealed from IR images as well as from centimeter continuum emission from VLA archival data; in the majority of cases the 44 GHz masers are positionally correlated with EGOs, which seem to trace the younger sources in the fields. We report a possible instance of a 44 GHz maser associated with a low-mass protostar. If confirmed, this region will be the fifth known star-forming region that hosts Class I masers associated with low-mass protostars. We discuss three plausible cases of maser variability.
Searching for Hot Subdwarf Stars from the LAMOST Spectra. I. Method
Authors: Bu Yude , Lei Zhenxin , Zhao Gang , Bu Jingde , Pan Jingchang 
Published: November 2017

Abstract
Hot subdwarf stars are core He burning stars located at the blue end of the horizontal branch, which is also known as the extreme horizontal branch. The study of hot subdwarf stars is important for understanding stellar astrophysics, globular clusters, and galaxies. Presently, some problems associated with hot subdwarf stars are still unclear. To better study the properties of these stars, we should find more hot subdwarf stars to enlarge the sample size. The traditional method of searching for hot subdwarfs from the large data sets is based on the color cuts followed by visual inspection. This method is not suitable for the data set without homogeneous colors, such as the spectra obtained by the Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST). In this paper, we present a new method of searching for hot subdwarf stars in large spectroscopic surveys using a machine learning algorithm, the hierarchical extreme learning machine (HELM) algorithm. We have applied the HELM algorithm to the spectra from the LAMOST survey, and classification errors are considerably small: for the single hot subdwarf stars, accuracy = 0.92 and efficiency - 0.96; and for the hot subdwarf binaries, accuracy = 0.80 and efficiency = 0.71. A comparison of the HELM and other popular algorithms shows that HELM is accurate and efficient in classifying hot subdwarf stars. This method provides a new tool for searching for hot subdwarf stars in large spectroscopic surveys.
MASTER Optical Detection of the First LIGO/Virgo Neutron Star Binary Merger GW170817
Authors: Lipunov V. M. , Gorbovskoy E. , Kornilov V. G. , Tyurina N . , Balanutsa P. , Kuznetsov A. , Vlasenko D. , Kuvshinov D. , Gorbunov I. , Buckley D. A. H. , Krylov A. V. , Podesta R. , Lopez C. , Podesta F. , Levato H. , Saffe C. , Mallamachi C. , Potter S. , Budnev N. M. , Gress O. , Ishmuhametova Yu. , Vladimirov V. , Zimnukhov D. , Yurkov V. , Sergienko Yu. , Gabovich A. , Rebolo R. , Serra-Ricart M. , Israelyan G. , Chazov V. , Wang Xiaofeng , Tlatov A. , Panchenko M. I. 
Published: November 2017

Abstract
Following the discovery of the gravitational-wave source GW170817 by three Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo antennae (Abbott et al., 2017a), the MASTER Global Robotic Net telescopes obtained the first image of the NGC 4993 host galaxy. An optical transient, MASTER OTJ130948.10-232253.3/SSS17a was later found, which appears to be a kilonova resulting from the merger of two neutron stars (NSs). Here we describe this independent detection and photometry of the kilonova made in white light, and in B, V, and R filters. We note that the luminosity of this kilonova in NGC 4993 is very close to those measured for other kilonovae possibly associated with gamma-ray burst (GRB) 130603 and GRB 080503.
ALMA Observations of SMM11 Reveal an Extremely Young Protostar in Serpens Main Cluster
Authors: Aso Yusuke , Ohashi Nagayoshi , Aikawa Yuri , Machida Masahiro N. , Saigo Kazuya , Saito Masao , Takakuwa Shigehisa , Tomida Kengo , Tomisaka Kohji , Yen Hsi-Wei , Williams Jonathan P. 
Published: November 2017

Abstract
We report the discovery of an extremely young protostar, SMM11, located in the associated submillimeter condensation in the Serpens Main cluster using the Atacama Large Millimeter/submillimeter Array (ALMA) during its Cycle 3 at 1.3 mm and an angular resolution of

. SMM11 is a Class 0 protostar without any counterpart at 70 μm or shorter wavelengths. The ALMA observations show 1.3 mm continuum emission associated with a collimated 12CO bipolar outflow. Spitzer and Herschel data show that SMM11 is extremely cold (

26 K) and faint (

0.9

). We estimate the inclination angle of the outflow to be

, almost parallel to the plane of the sky, from simple fitting using a wind-driven-shell model. The continuum visibilities consist of Gaussian and power-law components, suggesting a spherical envelope with a radius of ∼600 au around the protostar. The estimated low C18O abundance, X(C18O) = 1.5–3

, is also consistent with its youth. The high outflow velocity, a few 10

at a few 1000 au, is much higher than theoretical simulations of first hydrostatic cores, and we suggest that SMM11 is a transitional object right after the second collapse of the first core.
Perceptions and participation in community radio stations in Nariño-Colombia
Authors: Martínez-Roa Omar-Gerardo , Ortega-Erazo Elsy-Genith 
Published: November 2017

This work investigates the relationships between community radio and their audiences in the Department of Nariño, Colombia, considering Latin American and European experiences, and participation as a key element for social sustainability. The aim is to investigate whether the participation of citizens in the production, diffusion and radio management has been supported or not. Methodologically, we follow a mixed design that combined the results of two questionnaires: one, applied to 632 people from eleven municipalities; and the second, to eleven directors of communal stations. This was complemented with information provided by eleven groups composed of radio broadcasters, publishers and producers. One key finding within the audiences is that they recognize a radio station as a tool to enhance sociocultural dynamics in the region. As to the directors of stations, it was found that they didn't encourage active participation with communities. It seems that the absence of active and critical participation on the part of the audiences is due to an organizational and radio production model that mirrors the commercial one. In conclusion, these factors have limited the construction of democratic relations between communal broadcasters and their audiences; and especially, reduced the possibilities for citizens to participate as valid interlocutors in a local communicational project.
El presente trabajo indaga sobre las relaciones entre las emisoras comunitarias y sus audiencias, en el Departamento de Nariño en Colombia, en el contexto de experiencias latinoamericanas y europeas, desde una perspectiva de participación, como elemento clave para la sostenibilidad social. Interesa observar cómo los ciudadanos se han propiciado o no de la producción, difusión y gestión radiofónica. Metodológicamente se trabajó desde un diseño mixto que trianguló los resultados de dos cuestionarios: uno, aplicado a una muestra de 632 personas de once municipios, y otro, a once directores de emisoras comunitarias. Esto se complementó con la información de once grupos focales integrados por locutores, editores y realizadores de radio. Uno de los hallazgos más relevantes, en las audiencias, fue el reconocer la emisora como un medio que puede potenciar dinámicas socioculturales en la región. Por su parte, en los directores, se encontró que han agenciado incipientes procesos de participación con las comunidades. Se infiere que existe una deficiente capacidad reflexiva y crítica en las audiencias, esto debido a que la mayoría de emisoras han adoptado el modelo organizativo y de producción de la radio comercial. Se concluye que estos factores han afectado la construcción de relaciones democráticas entre las audiencias y las emisoras comunitarias, y en especial, las posibilidades de participación de los ciudadanos como interlocutores válidos en un proyecto comunicativo.
Topor : bête et méchant ? Roland Topor et la bande Hara-Kiri
Authors: Mazurier Stéphane 
Published: November 2017

Si Roland Topor n’a collaboré à Hara-Kiri que cinq ans, entre 1961 et 1966, c’est pour ce journal qu’il a produit le plus de dessins. Il y a forgé son style et a commencé à y gagner une certaine notoriété. Soucieux de tracer sa propre trajectoire et refusant de limiter son œuvre au dessin de presse, il quitte Hara-Kiri , mais continue à fréquenter les mêmes réseaux culturels que plusieurs dessinateurs du mensuel, notamment Wolinski et Willem. Il retrouve ainsi cette « bande Hara-Kiri » dans le champ de l’édition (chez Pauvert ou Losfeld), de la presse ( L’Enragé , Le Fou parle , Charlie mensuel ), et même de la télévision ( Merci Bernard , Palace ). Figure singulière d’ Hara-Kiri , Topor en est à la fois l’une des plus brillantes et un acteur marginal, périphérique – le seul peut-être qui n’ait pas accepté la tutelle de Cavanna.
Le « bobo » dans sa vi(ll)e
Authors: Corbillé Sophie 
Published: November 2017

Depuis une quinzaine d’années, une catégorie est extrêmement présente dans la vie parisienne, celle de « bourgeois-bohème » ou « bobo » et toutes sortes de personnes en font désormais un usage régulier et banal. On assiste même à une sorte de saturation des discours au point qu’il semble difficile d’y échapper. Comment cette catégorie a-t-elle été créée ? Comment circule-t-elle entre les espaces journalistique, marchand et politique, mais aussi dans celui de la vie ordinaire ? De quelles représentations est-elle porteuse et productrice ? Comment fonctionne-t-elle ? Autrement dit, de quoi le « bobo » est-il le nom ? En menant une analyse des discours sur et autour de cette figure et suscités par elle depuis sa création en 2000, nous verrons qu’elle vient révéler les compétitions sociales et symboliques qui se jouent au sein de la société française et parisienne et qu’elle fonctionne comme une mythologie.
Disruption of Thrombocyte and T Lymphocyte Development by a Mutation in ARPC1B
Authors: Somech Raz , Lev Atar , Lee Yu Nee , Simon Amos J. , Barel Ortal , Schiby Ginette , Avivi Camila , Barshack Iris , Rhodes Michele , Yin Jiejing , Wang Minshi , Yang Yibin , Rhodes Jennifer , Marcus Nufar , Garty Ben-Zion , Stein Jerry , Amariglio Ninette , Rechavi Gideon , Wiest David L. , Zhang Yong 
Published: November 2017

Abstract
Regulation of the actin cytoskeleton is crucial for normal development and function of the immune system, as evidenced by the severe immune abnormalities exhibited by patients bearing inactivating mutations in the Wiskott–Aldrich syndrome protein (WASP), a key regulator of actin dynamics. WASP exerts its effects on actin dynamics through a multisubunit complex termed Arp2/3. Despite the critical role played by Arp2/3 as an effector of WASP-mediated control over actin polymerization, mutations in protein components of the Arp2/3 complex had not previously been identified as a cause of immunodeficiency. Here, we describe two brothers with hematopoietic and immunologic symptoms reminiscent of Wiskott–Aldrich syndrome (WAS). However, these patients lacked mutations in any of the genes previously associated with WAS. Whole-exome sequencing revealed a homozygous 2 bp deletion, n.c.G623DEL-TC (p.V208VfsX20), in Arp2/3 complex component ARPC1B that causes a frame shift resulting in premature termination. Modeling of the disease in zebrafish revealed that ARPC1B plays a critical role in supporting T cell and thrombocyte development. Moreover, the defects in development caused by ARPC1B loss could be rescued by the intact human ARPC1B ortholog, but not by the p.V208VfsX20 variant identified in the patients. Moreover, we found that the expression of ARPC1B is restricted to hematopoietic cells, potentially explaining why a mutation in ARPC1B has now been observed as a cause of WAS, whereas mutations in other, more widely expressed, components of the Arp2/3 complex have not been observed.
Ubc9 Binds to ADAP and Is Required for Rap1 Membrane Recruitment, Rac1 Activation, and Integrin-Mediated T Cell Adhesion
Authors: Xiong Yiwei , Ye Chengjin , Yang Naiqi , Li Madanqi , Liu Hebin 
Published: November 2017

Abstract
Although the immune adaptor adhesion and degranulation-promoting adaptor protein (ADAP) acts as a key mediator of integrin inside-out signaling leading to T cell adhesion, the regulation of this adaptor during integrin activation and clustering remains unclear. We now identify Ubc9, the sole small ubiquitin-related modifier E2 conjugase, as an essential regulator of ADAP where it is required for TCR-induced membrane recruitment of the small GTPase Rap1 and its effector protein RapL and for activation of the small GTPase Rac1 in T cell adhesion. We show that Ubc9 interacted directly with ADAP in vitro and in vivo, and the association was increased in response to anti-CD3 stimulation. The Ubc9-binding domain on ADAP was mapped to a nuclear localization sequence (aa 674–700) within ADAP. Knockdown of Ubc9 by short hairpin RNA or expression of the Ubc9-binding–deficient ADAP mutant significantly decreased TCR-induced integrin adhesion to ICAM-1 and fibronectin, as well as LFA-1 clustering, although it had little effect on the TCR proximal signaling responses and TCR-induced IL-2 transcription. Furthermore, downregulation of Ubc9 impaired TCR-mediated Rac1 activation and attenuated the membrane targeting of Rap1 and RapL, but not Rap1-interacting adaptor molecule. Taken together, our data demonstrate for the first time, to our knowledge, that Ubc9 acts as a functional binding partner of ADAP and plays a selective role in integrin-mediated T cell adhesion via modulation of Rap1-RapL membrane recruitment and Rac1 activation.
Cutting Edge: Processing of Oxidized Peptides in Macrophages Regulates T Cell Activation and Development of Autoimmune Arthritis
Authors: Yang Min , Haase Claus , Viljanen Johan , Xu Bingze , Ge Changrong , Kihlberg Jan , Holmdahl Rikard 
Published: November 2017

Abstract
APCs are known to produce NADPH oxidase (NOX) 2–derived reactive oxygen species; however, whether and how NOX2-mediated oxidation affects redox-sensitive immunogenic peptides remains elusive. In this study, we investigated a major immunogenic peptide in glucose-6-phosphate isomerase (G6PI), a potential autoantigen in rheumatoid arthritis, which can form internal disulfide bonds. Ag presentation assays showed that presentation of this G6PI peptide was more efficient in NOX2-deficient (Ncf1m1J/m1J mutant) mice, compared with wild-type controls. IFN-γ–inducible lysosomal thiol reductase (GILT), which facilitates disulfide bond–containing Ag processing, was found to be upregulated in macrophages from Ncf1 mutant mice. Ncf1 mutant mice exhibited more severe G6PI peptide-induced arthritis, which was accompanied by the increased GILT expression in macrophages and enhanced Ag-specific T cell responses. Our results show that NOX2-dependent processing of the redox-sensitive autoantigens by APCs modify T cell activity and development of autoimmune arthritis.
TIM-3 Engagement Promotes Effector Memory T Cell Differentiation of Human Antigen-Specific CD8 T Cells by Activating mTORC1
Authors: Sabins Nina Chi , Chornoguz Olesya , Leander Karen , Kaplan Fred , Carter Richard , Kinder Michelle , Bachman Kurtis , Verona Raluca , Shen Shixue , Bhargava Vipul , Santulli-Marotto Sandra 
Published: November 2017

Abstract
T cell expression of TIM-3 following Ag encounter has been associated with a continuum of functional states ranging from effector memory T cells to exhaustion. We have designed an in vitro culture system to specifically address the impact of anti–TIM-3/TIM-3 engagement on human Ag-specific CD8 T cells during a normal response to Ag and found that anti–TIM-3 treatment enhances T cell function. In our in vitro T cell culture system, MART1-specific CD8 T cells were expanded from healthy donors using artificial APCs. To ensure that the T cells were the only source of TIM-3, cells were rechallenged with peptide-loaded artificial APCs in the presence of anti–TIM-3 Ab. In these conditions, anti–TIM-3 treatment promotes generation of effector T cells as shown by acquisition of an activated phenotype, increased cytokine production, enhanced proliferation, and a transcription program associated with T cell differentiation. Activation of mTORC1 has been previously demonstrated to enhance CD8 T cell effector function and differentiation. Anti–TIM-3 drives CD8 T cell differentiation through activation of the mTORC1 as evidenced by increased levels of phosphorylated S6 protein and rhebl1 transcript. Altogether these findings suggest that anti–TIM-3, together with Ag, drives differentiation in favor of effector T cells via the activation of mTOR pathway. To our knowledge, this is the first report demonstrating that TIM-3 engagement during Ag stimulation directly influences T cell differentiation through mTORC1.
El primer año de Universidad. Una experiencia positiva de transición
Authors: Sierra Martínez Silvia 
Published: November 2017

<p>Recensión del libro: El primer año de Universidad. Una experiencia positiva de transición</p><p>Autor: Bill Johnston<br />ISBN: 978-84-277-1910-1<br />Editorial: Narcea<br />Año de edición: 2013<br />Nº Edición: 1ª<br />Nº páginas: 155<br />Idioma: Español</p>
Rúbricas y autorregulación: pautas para promover una cultura de la autonomía en la formación profesional
Authors: De la Cruz Flores Gabriela , Abreu Hernández Luis Felipe 
Published: November 2017

<p>Los actuales modelos educativos basados en el desarrollo de competencias, enfatizan los procesos de autorregulación en el estudiantado, los cuales sustentan el desarrollo de habilidades para el aprendizaje a lo largo de la vida y la mejora continua del desempeño profesional. Las rúbricas son instrumentos de formación y evaluación, que pueden servir como herramientas para generar procesos de autorregulación creciente, a la vez que reducen gradualmente los apoyos externos. El presente artículo propone una estrategia metodológica para favorecer la autorregulación de los estudiantes mediante el uso de rúbricas, para ello se discuten tres elementos clave que coadyuvan a dicho proceso: la práctica reflexiva, el aprendizaje colaborativo y la realimentación que pares y docentes aportan al proceso de aprendizaje. El diseño y uso de las rúbricas en educación superior demanda: la alineación con el currículum; la coordinación con otras asignaturas en los distintos tramos formativos; el trabajo colegiado y la reflexión crítica en torno a las prácticas de formación. Asimismo debe favorecer la construcción de situaciones de aprendizaje que transitan desde zonas de mayor control y certidumbre hacia zonas de mayor complejidad e incertidumbre, lo cual conduce a los estudiantes hacia situaciones cercanas al desempeño profesional en condiciones auténticas. Se concluye con una serie de reflexiones en torno a la generación de una cultura en la formación profesional que promueve mayor autonomía y responsabilidad de los estudiantes con su propio aprendizaje. </p>
How Neoliberalism Got Organized: A Usable History for Resisters, With Special Reference to Education
Authors: Fink Ben 
Published: November 2017

Abstract
Neoliberalism is not a catch-all term for the evils of capitalism. Nor is it a fantasy invented by leftists. It is a long-term, strategic organizing campaign—a kind of civil rights movement for corporations—conducted by a network of people and groups who openly called themselves “neoliberals” until they decided it would be more strategic to cover their tracks. While neoliberalism may now seem universal and even unstoppable, it began in the 1930s and 40s as an all-too-familiar organizing effort, led largely by people within higher education. To understand the early history of the neoliberal campaign, in its fallible, human dimensions, is to understand how educators and educational institutions can organize to change the world—and to understand how another similar group of educators and institutions might organize ourselves to defeat them.
Campus Community Literacy Initiatives as Preparation for Civic Life
Authors: Donahue David M. , Autry Mary Murray , Cotterman Karin 
Published: November 2017

Abstract
Like many U.S. universities with service learning and community engagement programs, the University of San Francisco (USF) works to serve the literacy needs of young people in local public schools. Through its Engage San Francisco initiative, USF meets community identified needs, while it also prepares university students for civic life in democratic communities. Faculty and administrators engaged in university school literacy partnerships have a responsibility not only to prepare college students for success as tutors, but for a lifetime of thoughtful, socially just and equity-minded decision making. University-school partnerships focused on literacy provide ideal contexts for questioning assumptions about the purpose and methods of public schools and educating university students about education for the common good.