cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Digital.CSIC, sobre nosotros
Creators: name: Oficina Técnica De DIGITAL.CSIC
name: Bernal, Isabel
name: Román-Molina, Juan
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2015
Subjects: DIGITAL.CSIC
Acceso abierto
Open Access
Institutional repositories
Repositorios institucionales

description: Fecha de la última actualización: 14/02/2019.
description: Documento extraído de la entrada en Wikipedia. Contiene la creación del repositorio, sus objetivos, ventajas, servicios, organización, qué se puede repositar, quién y cómo se reposita un documento, la Pasarela conCiencia > Digital.CSIC, el fondo para publicar en acceso abierto, el Plan 100% Digital, estadísticas, política de privacidad, selección de artículos, pósters y comunicaciones de la Oficina de Digital.CSIC, manuales, ayudas y otros recursos de formación, agregadores y recolectores de Digital.CSIC, principales declaraciones del movimiento internacional del acceso abierto y enlaces externos.
description: 1. Creación.-- 2. Objetivos.-- 3. Ventajas.-- 4. Servicios de Digital.CSIC.-- 5. ¿Cómo se organiza?.-- 6. ¿Qué se puede repositar?.-- 7. ¿Quién y cómo se reposita un documento?.-- 8. Pasarela conCiencia > Digital.CSIC.-- 9. Fondo para publicar en acceso abierto.-- 10. Plan 100% Digital.-- 11 Estadísticas.-- 12. Política de privacidad.-- 13. Selección de artículos, pósters y comunicaciones de la Oficina de Digital.CSIC.-- 14. Manuales, ayudas y otros recursos de formación.-- 15. Agregadores y recolectores de Digital.CSIC.-- 16. Véase también.-- 17. Referencias.-- 18. Principales declaraciones del movimiento internacional del acceso abierto.-- 19. Enlaces externos
Borel complexity of sets of points with prescribed Birkhoff averages in Polish dynamical systems with a specification property
Creators: name: Deka, Konrad
name: Jackson, Steve
name: Kwietniak, Dominik
name: Mance, Bill
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: Logic (math.LO)
subject: FOS: Mathematics

description: We study the descriptive complexity of sets of points defined by placing restrictions on statistical behaviour of their orbits in dynamical systems on Polish spaces. A particular examples of such sets are the set of generic points of a $T$-invariant Borel probability measure, but we also consider much more general sets (for example, $α$-Birkhoff regular sets and the irregular set appearing in multifractal analysis of ergodic averages of a continuous real-valued function). We show that many of these sets are Borel. In fact, all these sets are Borel when we assume that our space is compact. We provide examples of these sets being non-Borel, properly placed at the first level of the projective hierarchy (they are complete analytic or co-analytic). This proves that the compactness assumption is in some cases necessary to obtain Borelness. When these sets are Borel, we use the Borel hierarchy to measure their descriptive complexity. We show that the sets of interest are located at most at the third level of the hierarchy. We also use a modified version of the specification property to show that for many dynamical systems these sets are properly located at the third level. To demonstrate that the specification property is a sufficient, but not necessary condition for maximal descriptive complexity of a set of generic points, we provide an example of a compact minimal system with an invariant measure whose set of generic points is $Π^0_3$-complete.
description: 26 pages
Assessment of Heavy Metal Pollution and Health Risks in a Government-Intervened Electronic Waste Dismantling Area in South China
Creators: name: Yang, Yan
name: Zhang, Jinhui
name: Chen, Pengcheng
name: Chen, Haojia
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Efficient control of heavy metal pollution necessitates a comprehensive understanding of pollutant sources. In this study, we conducted a thorough investigation of 11 metals in the soil of an electronic waste (e-waste) recycling facility in South China. The sources of these metals were determined through a combination of statistical analysis and the UNMIX model. Despite government intervention, our findings reveal significant pollution of nickel, copper, zinc, cadmium, and lead in the study area. Primary contributors to heavy metal contamination in the soil were identified as demolition activities, transport emissions, and atmospheric deposition. Utilizing a source risk assessment model, we observed that children face higher noncarcinogenic and carcinogenic risks compared to adults. Remarkably, the total hazard index of the study area was found to be considerably lower than that of other e-waste dismantling cities. Moreover, the total carcinogenic risk was noted to be one order of magnitude lower than both other e-waste dismantling cities and industrial and mining cities. While acknowledging the government’s commendable achievements in the standardized management of e-waste dismantling activities, our study underscores the need for targeted measures to further reduce pollution and safeguard the health of residents. These results emphasize the importance of ongoing efforts to enhance environmental protection strategies and underscore the significance of tailored interventions for sustainable pollution control in e-waste recycling facilities.
Efficient Big Text Data Clustering Algorithms using Hadoop and Spark
Creators: name: Gerakidis, Sergios
name: Megarchioti, Sofia
name: Mamalis, Basilis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Document clustering is a traditional, efficient and yet quite effective, text mining technique when we need to get a better insight of the documents of a collection that could be grouped together. The K-Means algorithm and the Hierarchical Agglomerative Clustering (HAC) algorithm are two of the most known and commonly used clustering algorithms; the former due to its low time cost and the latter due to its accuracy. However, even the use of K-Means in text clustering over large-scale collections can lead to unacceptable time costs. In this paper we first address some of the most valuable approaches for document clustering over such 'big data' (large-scale) collections. We then present two very promising alternatives: (a) a variation of an existing K-Means-based fast clustering technique (known as BigKClustering - BKC) so that it can be applied in document clustering, and (b) a hybrid clustering approach based on a customized version of the Buckshot algorithm, which first applies a hierarchical clustering procedure on a sample of the input dataset and then it uses the results as the initial centers for a K-Means based assignment of the rest of the documents, with very few iterations. We also give highly efficient adaptations of the proposed techniques in the MapReduce model which are then experimentally tested using Apache Hadoop and Spark over a real cluster environment. As it comes out of the experiments, they both lead to acceptable clustering quality as well as to significant time improvements (compared to K-Means - especially the Buckshot-based algorithm), thus constituting very promising alternatives for big document collections.
description: 9 pages
Los tweets de @DigitalCSIC en 2014
Creators: name: Oficina Técnica De DIGITAL.CSIC
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2015
Subjects: Twitter
2014
@DigitalCSIC
DIGITAL.CSIC
Acceso abierto
Open Access

description: 84 páginas.-- Documento creado el 08/01/2015 en http://tweetbook.in
description: Documento que contiene los tweets publicados en 2014 (496).
Los tweets de @DigitalCSIC en el workshop "Nuevos sistemas para la evaluación científica, peer-review y acceso abierto" (2014)
Creators: name: Oficina Técnica De DIGITAL.CSIC
Publisher: name: Digital.CSIC
Year: 2014
Subjects: Twitter
2014
@DigitalCSIC
DIGITAL.CSIC
Acceso abierto
Open Access
Impacto
Impact

description: 21 páginas.-- Documento creado el 24/10/2014 con http://tweetbook.in.-- Contiene además otro pdf con los tweets sacados del propio @DigitalCSIC
description: Documento que contiene los tweets publicados con motivo de la celebración del workshop "Nuevos sistemas para la evaluación científica, peer-review y acceso abierto", celebrado en el Salon de Actos del Real Jardín Botánico de Madrid el 22 de octubre de 2014 con motivo de la Semana Internacional del Acceso Abierto.
Correlations between Lag, Duration, Peak Luminosity, Hardness, and Asymmetry in Long GRB Pulses
Creators: name: Hakkila, Jon
name: Cumbee, Renata S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Continued study of the BATSE catalog verifies previously-identified correlations between pulse lag and pulse duration and corresponding anti-correlations between both properties and pulse peak flux for a large sample of Long GRB pulses; the study also finds correlations between pulse peak lags, pulse asymmetry, and pulse hardness. These correlations apparently can be used to delineate Long GRBs from Short ones. Correlated pulse properties represent constraints that can be used to guide theoretical modeling, whereas bulk prompt emission properties appear to be constructed by combining and smearing out pulse characteristics in ways that potentially lose valuable information.
description: 6 pages, 10 figures, 2 tables, to appear in the proceedings of the Sixth Huntsville Gamma-Ray Burst Conference 2008, edited by C.A. Meegan, N. Gehrels, and C. Kouveliotou
Spatial Distribution, Risk Assessment and Sources of Heavy Metals in Roadside Soils Exposed to the Zhengzhou-Kaifeng Intercity Railway in Huanghuai Plain, China
Creators: name: Duan, Haijing
name: Peng, Chaoyue
name: Liu, Yanhong
name: Guo, Chen
name: Wang, Yangyang
name: Wang, Yulong
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology

description: Heavy metal accumulation in soil can seriously harm human health, and it is necessary to identify the accumulation status and access the potential risks for local pollution control and sustainable economic development. This study evaluated the pollution level, spatial distribution, potential risk and sources of soil heavy metals along the Zhengzhou-Kaifeng intercity railway and compared pollution characteristics in north side soils with south side soils of the railway. A total of 260 soil samples were collected from a section along the railway. In practice, only the average Zn and Pb contents in soils were slightly higher than their corresponding risk screening values. The heavy metal enrichment in the north side soils was marginally lower than that in the south side soils. The spatial distribution of soil heavy metals except Pb could be mainly influenced by the different land use types. The geoaccumulation index and potential ecological risk of a single heavy metal indicated that Cd was the major contaminant with moderate pollution and high ecological risks in the south side soils and none to moderate pollution and moderate ecological risks in the north side soils. However, the mean multimetal potential ecological risk values suggested that the north side soils were at low ecological risks and the south side soils were at moderate ecological risks. The comprehensive non-carcinogenic risks and total carcinogenic risks for adults were low and acceptable, respectively. Pearson correlation analysis, PCA, and APCS-MLR analyses identified that the contributions of natural sources, mixed sources of industrial and traffic activities, agricultural activities, and other sources were 57.49%, 21.44%, 12.67% and 8.40%, respectively, and the major soil pollution Cd was mainly related to mixed sources of industrial and traffic activities. Therefore, continuous soil heavy metal monitoring is essential to elucidate the long-term railway operation effect on soil heavy metal accumulation.
Transport through (Ga,Mn)As nanoislands: Coulomb-blockade and temperature dependence of the conductance
Creators: name: Schlapps, Markus
name: Lermer, Teresa
name: Geissler, Stefan
name: Neumaier, Daniel
name: Sadowski, Janusz
name: Schuh, Dieter
name: Wegscheider, Werner
name: Weiss, Dieter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on magnetotransport measurements of nanoconstricted (Ga,Mn)As devices showing very large resistance changes that can be controlled by both an electric and a magnetic field. Based on the bias voltage and temperature dependent measurements down to the millikelvin range we compare the models currently used to describe transport through (Ga,Mn)As nanoconstrictions. We provide an explanation for the observed spin-valve like behavior during a magnetic field sweep by means of the magnetization configurations in the device. Furthermore, we prove that Coulomb-blockade plays a decisive role for the transport mechanism and show that modeling the constriction as a granular metal describes the temperature and bias dependence of the conductance correctly and allows to estimate the number of participating islands located in the constriction.
description: 5 pages, 3 figures, completed affiliations and corrected typos
El agregador ISIDORE recolecta contenidos de Humanidades y Ciencias Sociales de Digital.CSIC
Creators: name: Puga-Recio, Javier
name: Román-Molina, Juan
name: Bernal, Isabel
name: Oficina Técnica De DIGITAL.CSIC
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2015
Subjects: DIGITAL.CSIC
Isidore
Repositorios institucionales
Institutional repositories
Acceso abierto
Open Access
Agregador de información científica

description: Noticia publicada por Digital.CSIC.-- Localización: Campo de trigo en Pantaleón de Losa - Valle de Losa (Burgos), España.-- Contiene la imagen publicada y la original
description: El agregador de información científica en acceso abierto Isidore ha empezado a enriquecer e indizar metadatos y recursos digitales en Ciencias Humanas y Sociales en 3 idiomas (francés, inglés y español) y supondrá un gran avance para esta plataforma inaugurada en diciembre de 2010. En la actualidad cuenta con más de 3 millones de recursos digitales interconectados mediante referencias bibliográficas, indizados por un motor de búsqueda y disponibles bajo tres formas: un portal web, una API y un acceso unificado a los datos enriquecidos en formato RDF. El 26 de enero de 2014 DIGITAL.CSIC se convirtió en la primera fuente de trabajos de investigación en español en ser añadida a esta iniciativa de desarrollo multilingüe. La indexación del repositorio ha empezado por las colecciones de todos los institutos bajo la comunidad de Ciencias Humanas y Sociales, lo que supone la inclusión de más de 20.000 registros.
Entanglement between charge qubit states and coherent states of nanomechanical resonator generated by AC Josephson effect
Creators: name: Bahrova, O. M.
name: Gorelik, L Y.
name: Kulinich, S. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We considered a nanoelectromechanical system consisting of a movable Cooper-pair box qubit which is subject to an electrostatic field, and coupled to the two bulk superconductors via tunneling processes. We suggest that qubit dynamics is related to the one of a quantum oscillator and demonstrate that a bias voltage applied between superconductors generates states represented by the entanglement of qubit states and coherent states of the oscillator if certain resonant conditions are fulfilled. It is shown that a structure of this entanglement may be controlled by the bias voltage in a way that gives rise to the entanglement incorporating so-called cat-states - the superposition of coherent states. We characterize the formation and development of such states analyzing the entropy of entanglement and corresponding Wigner function. The experimentally feasible detection of the effect by measuring the average current is also considered.
description: 6 pages, 6 figures
Digital.CSIC, ¿qué sucedió en 2014?
Creators: name: Román-Molina, Juan
name: Bernal, Isabel
name: Oficina Técnica De DIGITAL.CSIC
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2015
Subjects: Open Access
DIGITAL.CSIC
Repositorio institucional del CSIC
CSIC institutional repository
Acceso abierto
2014

description: Póster que muestra el resumen de actividades destacadas realizadas por DIGITAL.CSIC en 2014.
The Wilson loop from a Dyson equation
Creators: name: Pak, M.
name: Reinhardt, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Dyson equation proposed for planar temporal Wilson loops in the context of supersymmetric gauge theories is critically analysed thereby exhibiting its ingredients and approximations involved. We reveal its limitations and identify its range of applicability in non-supersymmetric gauge theories. In particular, we show that this equation is applicable only to strongly asymmetric planar Wilson loops (consisting of a long and a short pair of loop segments) and as a consequence the Wilsonian potential can be extracted only up to intermediate distances. By this equation the Wilson loop is exclusively determined by the gluon propagator. We solve the Dyson equation in Coulomb gauge for the temporal Wilson loop with the instantaneous part of the gluon propagator and for the spatial Wilson loop with the static gluon propagator obtained in the Hamiltonian approach to continuum Yang-Mills theory and on the lattice. In both cases we find a linearly rising color potential.
description: 12 pages, 7 figures
Impact angle control of local intense d$B$/d$t$ variations during shock-induced substorms
Creators: name: Oliveira, Denny M.
name: Weygand, James M.
name: Zesta, Eftyhia
name: Ngwira, Chigomezyo M.
name: Hartinger, Michael D.
name: Xu, Zhonghua
name: Giles, Barbara L.
name: Gershman, Dan J.
name: Silveira, Marcos V. D.
name: Souza, Vitor M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The impact of interplanetary shocks on the magnetosphere can trigger magnetic substorms that intensify auroral electrojet currents. These currents enhance ground magnetic field perturbations (d$B$/d$t$), which in turn generate geomagnetically induced currents (GICs) that can be detrimental to power transmission infrastructure. We perform a comparative study of d$B$/d$t$ variations in response to two similarly strong shocks, but with one being nearly frontal, and the other, highly inclined. Multi-instrument analyses by the Time History of Events and Macroscale Interactions during Substorms (THEMIS) and Los Alamos National Laboratory spacecraft show that nightside substorm-time energetic particle injections are more intense and occur faster in the case of the nearly head-on impact. The same trend is observed in d$B$/d$t$ variations recorded by THEMIS ground magnetometers. THEMIS all-sky imager data show a fast and clear poleward auroral expansion in the first case, which does not clearly occur in the second case. Strong field-aligned currents computed with the spherical elementary current system (SECS) technique occur in both cases, but the current variations resulting from the inclined shock impact are weaker and slower compared to the nearly frontal case. SECS analyses also reveal that geographic areas with d$B$/d$t$ surpassing the thresholds 1.5 and 5 nT/s, usually linked to high-risk GICs, are larger and occur earlier due to the symmetric compression caused by the nearly head-on impact. These results, with profound space weather implications, suggest that shock impact angles affect the geospace driving conditions and the location and intensity of the subsequent d$B$/d$t$ variations during substorm activity.
description: 44 pages, 18 figures, 3 tables
Comparative study of the political and economic consolidation policies pursued by the Soviet Union in Kazakhstan (1917-33) and Communist China in Sinkiang (1949-57)
Creators: name: Okoko, Cornelius Amaebi Biye
Publisher: name: University of British Columbia
Year: 2011

description: This study is an attempt to compare similar periods of development during the respective phases of consolidation of power by the Bolsheviks in Kazakhstan and by the Chinese Communists in Sinkiang. It is not intended to be an exhaustive study, given the momentous developments that transpired during the period under study - 1917-33 in Kazakhstan and 1949-57 in Sinkiang. This study will therefore be limited to those important political and economic developments which appear to this writer to demonstrate more convincingly the similarities and differences these two periods of development - the political consolidation phase and the economic consolidation phase - portrayed. What do the Soviet and Chinese economies of the period under study have in common? What do the two regimes have in common in terms of their political policies? Why compare them at all? Perhaps the easiest answer to these questions is that both economies, were lodged in similar doctrinal -political matrices. They were both integral aspects of Communist societies and one-party systems that officially designated themselves, at least at the time, as Marxist-Leninist by ideological commitment, Communist by party label, and Socialist by politico-economic order. But it is equally true, that a common ideological base alone does not of itself ensure that it will be applied precisely the same way regardless of time, place and circumstance. Thus when a Communist party takes power and consolidates its roots in the national soil, its perception of its needs and the nature of its commitments cannot avoid being coloured by the national interests which it has inherited and the pressures of the milieu in which it is compelled to function. In this study, it has also been demonstrated that, with Civil War behind them and once power was won, the political and economic policies pursued by both regimes also differed markedly in many respects.
Transport properties of the Hubbard model in low dimensions
Creators: name: Celebonovic, V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Hubbard model describes interacting electrons on a lattice,a situation which occurs in various solid state materials and devices. The aim of the present paper is to briefly discuss this model and its applications in the study of transport properties of Q1D and Q2D systems. Several examples are taken from materials and fields that have been intensively studied in recent years.
description: LaTeX file with one eps figure,packed with tgz
Gamma-Ray Burst Pulse Correlations as Redshift Indicators
Creators: name: Hakkila, Jon
name: Fragile, P. Chris
name: Giblin, Timothy W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Correlations among pulse properties in the prompt emission of long GRBs can potentially be used as cosmological distance indicators to estimate redshifts of GRBs to which these pulses belong. We demonstrate application of this technique to a sample of GRBs for which redshifts are not known. We also study the scatter of predicted redshifts of pulses found within individual bursts. We explore the characteristics of this scatter in hopes of identifying systematic corrections and/or pulse subsets that can be used to increase the technique's reliability.
description: 3 pages and 6 figures, to appear in the proceedings of the Sixth Huntsville Gamma-Ray Burst Symposium, edited by C.A. Meegan, N. Gehrels, and C. Kouveliotou
title: Manuscripta.CSIC. Digitalized oriental manuscripts preserved in the network of CSIC Libraries
title: Manuscripta.CSIC. Manuscritos orientales digitalizados conservados en la Red de Bibliotecas del CSIC
titleType: AlternativeTitle
Creators: name: CSIC-Centro De Ciencias Humanas Y Sociales (CCHS)
name: CSIC-Escuela De Estudios Árabes (EEA)
name: CSIC-Unidad De Recursos De Información Científica Para La Investigación (URICI)
name: CSIC-Instituto De Lenguas Y Culturas Del Mediterráneo Y Oriente Próximo (ILC)
Publisher: name: CSIC - Centro de Ciencias Humanas y Sociales (CCHS)
Year: 2014
Subjects: Manuscript@CSIC
CSIC
Portal
Website
Hebrew manuscripts
Arabic manuscripts
Aljamiado manuscripts
Persian manuscripts
Turkish manuscripts
Digitalized manuscripts
Simurg
Digitalized collections
Manuscritos
Manuscritos hebreos
Manuscritos árabes
Manuscritos aljamiados
Manuscritos persas
Manuscritos turcos
Manuscritos digitalizados
Fondos digitalizados

description: Folleto de 2 páginas.-- Disponible en español e inglés.-- Web de Manuscript@CSIC: http://biblioteca.cchs.csic.es/ManuscriptaCSIC/
description: [EN] The Manuscript@CSIC portal presents the collections of manuscripts in Hebrew, Arabic, Aljamiado, Persian and Turkish preserved and stored in the network of CSIC libraries, and includes information on their catalo-ging and digitalization. The Portal is the result of a joint project carried out by the Institute of Mediterranean and Near Eastern Lan-guages and Cultures (ILC-CSIC),the School of Arabic Studies in Granada (EEA-CSIC) and the Unit of Informa-tion Resources for Research (CSIC) The project intends to make accessible to the public the collections of manuscripts stored in the Tomás Navarro Tomás Library and School of Arabic Studies Library
description: [ES] El portal Manuscript@CSIC presenta las colecciones de manuscritos en hebreo, árabe, aljamiado, persa y turco conservados en las bibliotecas del CSIC, incorporando tanto su catalogación como su digitalización Es el resultado de una acción conjunta entre el Instituto de Lenguas y Culturas del Mediterráneo y Oriente Pró-ximo, la Escuela de Estudios Árabes de Granada y la Unidad de de Recursos de Información Científica para la Investigación del CSIC, realizada con el fin de dar a co-nocer las colecciones de manuscritos en lenguas orien-tales conservados en sus bibliotecas: Biblioteca Tomás Navarro Tomás del Centro de Ciencias Humanas y So-ciales y la Biblioteca de la Escuela de Estudios Árabes.
Thermopower-enhanced efficiency of Si/SiGe ballistic rectifiers
Creators: name: Salloch, D.
name: Wieser, U.
name: Kunze, U.
name: Hackbarth, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Injection-type ballistic rectifiers on Si/SiGe are studied with respect to the influence of gate voltage on the transfer resistance RT (output voltage divided by input current) for different positions of a local gate electrode. The rectifiers are trifurcated quantum wires with straight voltage stem and oblique current-injecting leads. Depending on the gate configuration, thermopower contributions arise from nearly-pinched stem regions which either cancel each other or impose upon the ballistic signal with same or opposite polarity. At best, this enhances RT to a maximum value of 470 Ohm close to threshold voltage.
Los tweets de @bibliotecasCSIC en 2015
Creators: name: Unidad De Recursos De Información Científica Para La Investigación (URICI)
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2016
Subjects: Twitter
2015
@bibliotecasCSIC
Bibliotecas del CSIC
Archivos del CSIC
CSIC libraries
CSIC Archives

description: 245 páginas.-- Documento creado el 19/01/2016 en http://tweetbook.in
description: Documento que contiene los tweets publicados en 2015 (1680).
Additional file 6 of Understanding the groups of care transition strategies used by U.S. hospitals: an application of factor analytic and latent class methods
Creators: name: Mays, Glen
name: Li, Jing
name: Clouser, Jessica Miller
name: Du, Gaixin
name: Stromberg, Arnold
name: Jack, Brian
name: Nguyen, Huong Q.
name: Williams, Mark V.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 6. Frequency of TC Strategy Adoption.
Clinical features and real-world outcomes of Guillain–Barré syndrome in the Philippines
Creators: name: Espiritu, Adrian I.
name: Separa, Karl Josef Niño J.
name: Milla, Francis Jordan C.
name: Adiao, Karen Joy B.
name: Leochico, Carl Froilan D.
name: Jamora, Roland Dominic G.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Our study aimed to determine the profile of Guillain–Barré syndrome (GBS) in the Philippines, compare the outcomes who received intravenous immunoglobulin (IVIg) and therapeutic plasma exchange (TPE), and determine the factors related to hospital stay and late motor recovery. We conducted a retrospective cohort study of adult GBS patients admitted to the Philippine General Hospital from 2009 to 2019. We included 105 patients with confirmed GBS diagnoses. The median age was 43 years (interquartile range 32 to 56); the female-to-male ratio was 1.62:1; the predominant variant was acute inflammatory demyelinating polyneuropathy (n = 40, 38.1%). The difference in outcomes of patients in the IVIg (n = 44) and TPE (n = 24) groups (walking with aid/GBS-disability scores/ventilator dependency at 1 month, duration dependent on the ventilator, intensive care unit stay, and hospital stay) were not statistically significant, except for mild disability at 1 month (p = 0.009). Pneumonia, urinary tract infection, and dysautonomia were significantly related to a prolonged hospital stay. No predetermined variables were associated with late motor recovery. After adjusting for age and sex, the cumulative hazard risk for late motor recovery was 0.69 (95% CI 0.27–1.74). Our study presented the first comprehensive information regarding the features and outcomes of GBS patients in the Philippines. AIDP – Acute inflammatory demyelinating polyneuropathy; AMAN – Acute motor axonal neuropathy; AMSAN – Acute motor and sensory axonal neuropathy; GBS – Guillain–Barré syndrome; GBS-DS – Guillain–Barré syndrome disability scale; ICU – Intensive care unit; IVIg – Intravenous immunoglobulin; MFS – Miller–Fisher syndrome; PGH – Philippine General Hospital; TPE – Therapeutic plasma exchange.
Layering and vertical transport in sheared double diffusive convection in the diffusive regime
Creators: name: Yang, Yantao
name: Verzicco, Roberto
name: Lohse, Detlef
name: Caulfield, C. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A sequence of two and three-dimensional simulations is conducted for the double diffusive convection (DDC) flows in the diffusive regime subjected to an imposed shear. The flow is confined between two horizontal plates which are maintained at different constant temperature, salinity, and different velocity, thus setting up a shear across the flow. The lower plate is fixed at higher temperature and salinity, while the overall (unperturbed) density gradient is statically stable. For a wide range of control parameters, and for sufficiently strong perturbation of the conductive initial state, we find that staircase-like structures spontaneously develop, with relatively well-mixed layers separated by sharp interfaces of enhanced scalar gradient. Such staircases appear to be robust even in the presence of strong shear over very long times, although we typically observe early time coarsening of the number of observed layers. For the same set of control parameters, different asymptotic layered states, with markedly different vertical scalar fluxes, can arise for different initial perturbation structures. The imposed shear does significantly spatio-temporally modify the vertical transport of the various scalars. The flux ratio (i.e., the ratio between the density fluxes due to the total (convective and diffusive) salt flux and the total heat flux) is found, at steady state, to be essentially equal to the square root of the ratio of the salt diffusivity to the thermal diffusivity, consistently with the physical model originally proposed by Linden and Shirtcliffe (1978) and the variational arguments presented by Stern (1982) for unsheared double diffusive convection.
description: 23 pages, 12 figures, 1 table
Mobilization of Cadmium and Arsenic During Anoxic-Oxic Alteration in Paddy Soils: A Vital Role of Manganese
Creators: name: Wang, Xuewei
name: Fu, Qingling
name: Zhu, Jun
name: Fang, Lingchuan
name: Hu, Hongqing
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Biological Sciences not elsewhere classified

description: Flooding and drainage of paddy fields can induce the activation of soil cadmium (Cd)/arsenic (As), which will accumulate in rice grains and threaten human health. Mn oxides influence soil Cd and As availability, but few detailed studies have been reported on how Mn redox simultaneously affects Cd and As mobility during flooding and drainage. Two paddy soils with various Mn contents were incubated under three redox conditions, namely 30-d reduction, 30-d oxidation and 20-d reduction subsequent with 10-d oxidation, to investigate Cd and As migration. During reduction, the soil abundant in native Mn oxides possessed more high-valence Mn oxides, which promoted As oxidation and retarded the reductive dissolution of Fe (oxyhydro)oxides, thereby decreasing As mobility. Cd mobility mainly depended on the conversion between Fe-Mn oxides-bound Cd and exchangeable Cd. The high Mn content was conducive to decreasing Cd mobilization. Furthermore, the oxidation of As in soils was linked with a Fenton-like effect. The generated hydroxyl radicals (•OH) decreased with oxidation and the oxidation of Mn(II) by •OH inhibited As migration but promoted Cd activation. In summary, the mobility of Cd and As was lower in Mn rich soils, which may involve the immobilization, oxidation and catalytic effects of Mn oxides. Cd mobility mainly relied on the conversion between Fe-Mn oxides-bound Cd and exchangeable Cd.The redox dependence of Mn played a key role in controlling Cd and As migration in paddy soils.Soils containing higher content of Mn oxides possessed lower mobility of Cd and As.The oxidative effect of •OH on Mn(II) inhibited As mobility but promoted Cd activation. Cd mobility mainly relied on the conversion between Fe-Mn oxides-bound Cd and exchangeable Cd. The redox dependence of Mn played a key role in controlling Cd and As migration in paddy soils. Soils containing higher content of Mn oxides possessed lower mobility of Cd and As. The oxidative effect of •OH on Mn(II) inhibited As mobility but promoted Cd activation.
title:  Internet Usage and Religious Authority: A Case Study of the Catholic Church of South Korea
Creators: name: Park, Youngho
Publisher: name: Old Dominion University Libraries
Year: 2011

description: This study examines what impact the Internet usage by church members has on religious authority, focusing on a case study of the Korean Catholic Church. The goals of this study are to investigate the ways in which church members use the Internet for communication in the Church, to examine whether and how the Internet usage by church members affects religious authority, and to identify what kind of religious authority is affected. This study encompasses two main parts: historical background of the Church's Internet usage and analysis of the online forums about "The Four Major Rivers Project". The latter is divided into three main areas: the construction of public opinion, forms of religious authority, and rearrangement of authority.

The findings of this study suggest that ordinary church members have utilized the Internet as a new way of getting, sharing, and even producing religious information and knowledge, as well as a space for discussion and debate on a variety of issues that is not limited to purely spiritual area. The expansion of cyber space for church member has made it possible for them to raise opinions critical of the Church organizations and leaders, which in the end brought about radical form of challenges to the existing religious authorities.

This study also found that while church members, at the initial stage of discussion, tended to rely on the Church organizations and leadership group in forming their opinions about an issue, they tended to accept or deny the traditional religious authorities in the Church on the basis on their own convictions and experiences. This study suggests that the most frequently referred form of religious authority was religious hierarchy, with religious ideology and text the least referred. This study also found that traditional religious authorities of Korean Catholic Church, through the online discussion, were challenged and eroded, and some part of authorities were dispersed among church members or new form of authorities was created by them.
Exact quantum lower bound for Grover's problem
Creators: name: Dohotaru, Catalin
name: Hoyer, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the most important quantum algorithms ever discovered is Grover's algorithm for searching an unordered set. We give a new lower bound in the query model which proves that Grover's algorithm is exactly optimal. Similar to existing methods for proving lower bounds, we bound the amount of information we can gain from a single oracle query, but we bound this information in terms of angles. This allows our proof to be simple, self-contained, based on only elementary mathematics, capturing our intuition, while obtaining at the same an exact bound.
description: 7 pages, no figures
Propagation of extended objects across singularity of time dependent orbifold
Creators: name: Malkiewicz, Przemyslaw
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we argue that the compactified Milne space is a promising model of the cosmological singularity. It is shown that extended objects like strings propagate in a well-defined manner across the singularity of the embedding space. Then a proposal for quantization of extended objects in the case of a membrane is given.
description: 4 pages, prepared for the proceedings of the Grassmannian Conference in Fundamental Cosmology (Grasscosmofun'09), 14-19 September 2009, Szczecin, Poland
CR Yamabe constant and inequivalent CR structures
Creators: name: Sung, Chanyoung
name: Takeuchi, Yuya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32V20, 32V05, 57K43

description: The CR Yamabe constant is an invariant of a compact strongly pseudoconvex CR manifold and plays an important role in CR geometry. We show some integral formulae of the CR Yamabe constant. We also construct an infinite-dimensional family of strongly pseudoconvex CR structures with varying CR Yamabe constants and a compact simply-connected manifold admitting two strongly pseudoconvex CR structures with different signs of the CR Yamabe constant.
Digital.CSIC, ¿qué sucedió en 2015?
Creators: name: Román-Molina, Juan
name: Bernal, Isabel
name: Oficina Técnica De DIGITAL.CSIC
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2016
Subjects: Open Access
DIGITAL.CSIC
Repositorio institucional del CSIC
CSIC institutional repository
Acceso abierto
2015

description: Póster que muestra el resumen de actividades destacadas realizadas por DIGITAL.CSIC en 2015.
WALLABY Pilot Survey: HI gas disc truncation and star formation of galaxies falling into the Hydra I cluster
Creators: name: Reynolds, T. N.
name: Catinella, B.
name: Cortese, L.
name: Westmeier, T.
name: Meurer, G. R.
name: Shao, L.
name: Obreschkow, D.
name: Román, J.
name: Verdes-Montenegro, L.
name: Deg, N.
name: Dénes, H.
name: For, B. -Q.
name: Kleiner, D.
name: Koribalski, B. S.
name: Lee-Waddell, K.
name: Murugeshan, C.
name: Oh, S. -H.
name: Rhee, J.
name: Spekkens, K.
name: Staveley-Smith, L.
name: Stevens, A. R. H.
name: van der Hulst, J. M.
name: Wang, J.
name: Wong, O. I.
name: Holwerda, B. W.
name: Bosma, A.
name: Madrid, J. P.
name: Bekki, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results from our analysis of the Hydra I cluster observed in neutral atomic hydrogen (HI) as part of the Widefield ASKAP L-band Legacy All-sky Blind Survey (WALLABY). These WALLABY observations cover a 60-square-degree field of view with uniform sensitivity and a spatial resolution of 30 arcsec. We use these wide-field observations to investigate the effect of galaxy environment on HI gas removal and star formation quenching by comparing the properties of cluster, infall and field galaxies extending up to $\sim5R_{200}$ from the cluster centre. We find a sharp decrease in the HI-detected fraction of infalling galaxies at a projected distance of $\sim1.5R_{200}$ from the cluster centre from $\sim0.85\%$ to $\sim0.35\%$. We see evidence for the environment removing gas from the outskirts of HI-detected cluster and infall galaxies through the decrease in the HI to $r$-band optical disc diameter ratio. These galaxies lie on the star forming main sequence, indicating that gas removal is not yet affecting the inner star-forming discs and is limited to the galaxy outskirts. Although we do not detect galaxies undergoing galaxy-wide quenching, we do observe a reduction in recent star formation in the outer disc of cluster galaxies, which is likely due to the smaller gas reservoirs present beyond the optical radius in these galaxies. Stacking of HI non-detections with HI masses below $M_{\rm{HI}}\lesssim10^{8.4}\,\rm{M}_{\odot}$ will be required to probe the HI of galaxies undergoing quenching at distances $\gtrsim60$ Mpc with WALLABY.
description: 18 pages, 10 figures, accepted for publication in MNRAS
An Assessment of Metal Pollution in the Surface Sediments of an East Antarctic Lake
Creators: name: Joju, G.S.
name: Warrier, Anish Kumar
name: Sali, A.S Yamuna
name: Chaparro, Marcos A.E.
name: Mahesh, B.S.
name: K, Amrutha
name: K, Balakrishna
name: Mohan, Rahul
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Astronomical and Space Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: This study discusses the metal concentrations and sedimentological data from Lake L55, a dried, land-locked lake from Schirmacher Oasis, East Antarctica. Toxic metals in sediments are a major threat to the environment. Twenty-five surface sediment samples were analyzed for the presence of fifteen metals. The sedimentological data indicates that the sediments are predominantly sandy with low concentrations of silt and clay. The chemical weathering index for the sediments reflects low degree of weathering. Negligible concentrations of organic content were present in the sediments owing to the cold and dry conditions of the study area. The environmental pollution indices indicate elevated concentrations of Ba, Zn, As and Pb in the sediments. Barium could be supplied by the weathering of the quartzofeldspathic catchment rocks, while Zn, As and Pb could be supplied from the fuel burning for power generation and logistical activities, paint residue, and battery waste. The sediment quality guidelines were calculated for the sediments, and they indicate that the sediments have a 21% risk of being toxic. The pollution load index, potential ecological risk index (PERI) and toxic risk index (TRI) values suggest low toxic risk in the sediments of the lake.
Demazure resolutions as varieties of lattices with infinitesimal structure
Creators: name: Kreidl, Martin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L30

description: Let k be a field of positive characteristic. We construct, for each dominant coweight λof the standard maximal torus in the special linear group, a closed subvariety D(λ) of the multigraded Hilbert scheme of an affine space over k, such that the k-valued points of D(λ) can be interpreted as lattices in k((z))^n endowed with infinitesimal structure. Moreover, for any λwe construct a universal homeomorphism from D(λ) to a Demazure resolution of the Schubert variety associated with λin the affine Grassmannian. Lattices in D(λ) have non-trivial infinitesimal structure if and only if they lie over the boundary of the big cell.
description: 24 pages, added the missing bibliography
BILL WALSH: COACHING WITH A TACTICAL MORAL COMPASS A THESIS SUBMITTED TOTHE FACULTY OF THE MASTER OF LIBERAL ARTS PROGRAMOF STANFORD UNIVERSITYIN PARTIAL FULFILLMENT OF THE DEGREEOF MASTER OF LIBERAL ARTS
Creators: name: Sikora, John
Publisher: name: Stanford Digital Repository
Year: 2024
Subjects: subject: Walsh, Bill, 1931-2007
subject: Coaching (Athletics)--Philosophy
subject: Ethics
subject: Morality
subject: Leadership
subject: Equality
subject: Maverick
subject: Master of Liberal Arts

description: American football embodies the primal instincts of violence, emotion, dominance, impulsiveness, and aggression, causing Malcolm Gladwell to deem the sport “a moral abomination.” Indeed, any fan of the sport cannot deny that football is violent. Historically, the caretakers of the sport, football coaches, have led their teams by coaching the game in the same fashion it is played, relying on confrontation and intimidation. However, one person, former San Francisco Forty Niners head coach Bill Walsh, embraced an intentional coaching strategy centered on morality and ethics, and in doing so, produced some of the best football teams in the history of the sport. He applied this “moral compass” in his dealings not just with his players, but with all members of the organization, insisting on egalitarianism and a culture of mutual respect. A thorough study of Walsh suggests that a coaching strategy centered on morality and ethics can not only be successfully adopted in sports, but can enable teams to thrive.