cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The QCD critical end point in the PNJL model
Creators: name: Costa, Pedro
name: de Sousa, C. A.
name: Ruivo, M. C.
name: Hansen, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the role played by the Polyakov loop in the dynamics of the chiral phase transition in the framework of the so-called PNJL model in the SU(2)sector. We present the phase diagram where the inclusion of the Polyakov loop moves the critical points to higher temperatures, compared with the NJL model results. The critical properties of physical observables, such as the baryon number susceptibility and the specific heat, are analyzed in the vicinity of the critical end point, with special focus on their critical exponents. The results with the PNJL model are closer to lattice results and we also recover the universal behavior of the critical exponents of both the baryon susceptibility and the specific heat.
description: 12 pages, 3 figures, EPL version
Two-dimensional van der Waals electrical contact to monolayer MoSi$_2$N$_4$
Creators: name: Cao, Liemao
name: Zhou, Guanghui
name: Wang, Qianqian
name: Ang, L. K.
name: Ang, Yee Sin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Two-dimensional (2D) MoSi$_2$N$_4$ monolayer is an emerging class of air-stable 2D semiconductor possessing exceptional electrical and mechanical properties. Despite intensive recent research efforts devoted to uncover the material properties of MoSi$_2$N$_4$, the physics of electrical contacts to MoSi$_2$N$_4$ remains largely unexplored thus far. In this work, we study the van der Waals heterostructures composed of MoSi$_2$N$_4$ contacted by graphene and NbS$_2$ monolayers using first-principle density functional theory calculations. We show that the MoSi$_2$N$_4$/NbS$_2$ contact exhibits an ultralow Schottky barrier height (SBH), which is beneficial for nanoelectronics applications. For MoSi$_2$N$_4$/graphene contact, the SBH can be modulated via interlayer distance or via external electric fields, thus opening up an opportunity for reconfigurable and tunable nanoelectronic devices. Our findings provide insights on the physics of 2D electrical contact to MoSi$_2$N$_4$, and shall offer a critical first step towards the design of high-performance electrical contacts to MoSi$_2$N$_4$-based 2D nanodevices.
description: 5 pages, 5 figures (accepted version, to appear in Applied Physics Letters)
Opportunities for long-range magnon-mediated entanglement of spin qubits via on- and off-resonant coupling
Creators: name: Fukami, Masaya
name: Candido, Denis R.
name: Awschalom, David D.
name: Flatté, Michael E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ability to manipulate entanglement between multiple spatially-separated qubits is essential for quantum information processing. Although nitrogen-vacancy (NV) centers in diamond provide a promising qubit platform, developing scalable two-qubit gates remains a well-known challenge. To this end, magnon-mediated entanglement proposals have attracted attention due to their long-range spin-coherent propagation. Optimal device geometries and gate protocols of such schemes, however, have yet to be determined. Here we predict strong long-distance ($>μ$m) NV-NV coupling via magnon modes with cooperativities exceeding unity in ferromagnetic bar and waveguide structures. Moreover, we explore and compare on-resonant transduction and off-resonant virtual-magnon exchange protocols, and discuss their suitability for generating or manipulating entangled states at low temperatures ($T\lesssim 150$ mK) under realistic experimental conditions. This work will guide future experiments that aim to entangle spin qubits in solids with magnon excitations.
description: PRX Quantum in press, 10 pages, 5 figures
Topological superconductivity in semiconductor-superconductor-magnetic insulator heterostructures
Creators: name: Maiani, A.
name: Souto, R. Seoane
name: Leijnse, M.
name: Flensberg, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Hybrid superconductor-semiconductor heterostructures are promising platforms for realizing topological superconductors and exploring Majorana bound states physics. Motivated by recent experimental progress, we theoretically study how magnetic insulators offer an alternative to the use of external magnetic fields for reaching the topological regime. We consider different setups, where: (1) the magnetic insulator induces an exchange field in the superconductor, which leads to a splitting in the semiconductor by proximity effect, and (2) the magnetic insulator acts as a spin-filter tunnel barrier between the superconductor and the semiconductor. We show that the spin splitting in the superconductor alone cannot induce a topological transition in the semiconductor. To overcome this limitation, we propose to use a spin-filter barrier that enhances the magnetic exchange and provides a mechanism for a topological phase transition. Moreover, the spin-dependent tunneling introduces a strong dependence on the band alignment, which can be crucial in quantum-confined systems. This mechanism opens up a route towards networks of topological wires with fewer constraints on device geometry compared to previous devices that require external magnetic fields.
description: 9+5 pages, 6 figures
Second order asymptotics for matrix models
Creators: name: Guionnet, Alice
name: Maurel-Segala, Edouard
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 15A52, 05C30 (Primary)

description: We study several-matrix models and show that when the potential is convex and a small perturbation of the Gaussian potential, the first order correction to the free energy can be expressed as a generating function for the enumeration of maps of genus one. In order to do that, we prove a central limit theorem for traces of words of the weakly interacting random matrices defined by these matrix models and show that the variance is a generating function for the number of planar maps with two vertices with prescribed colored edges.
description: Published in at http://dx.doi.org/10.1214/009117907000000141 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Prosuming und Sharing - neuer sozialer Konsum
title: Aspekte kollaborativer Formen von Konsumtion und Produktion
titleType: Subtitle
Creators: name: Bala, Christian
name: Schuldzinski, Wolfgang
Publisher: name: vz-nrw (Verbraucherzentrale Nordrhein-Westfalen e. V.)
Year: 2016

description: Sharing Economy und Peer-Produktion gelten als soziale Innovationen, die durch das Social Web und das mobile Internet geprägt wurden. Sie wecken Hoffnungen auf einen nachhaltigen, sozialen und partizipativen Konsum. Allerdings gibt es auch Zweifel: Neben den Vorteilen für Verbraucherinnen und Verbraucher, wird auch die Kommerzialisierung und das Entstehen eines disruptiven Plattform-Kapitalismus beobachtet. Der Band nähert sich der Sharing Economy aus unterschiedlichen Blickwinkeln: Neben der ökologischen und sozial-innovativen Perspektive, wird der Ausbau des Carsharing und die Rolle von geteilten Informationen auf Plattformen diskutiert sowie analoge Schenkökonomien und Prosumer-Genossenschaften analysiert.
description: Beiträge zur Verbraucherforschung
description: Beiträge zur Verbraucherforschung
Change in somatostatin receptor expression after vascular injury
Creators: name: Chen, Jerry
Publisher: name: University of British Columbia
Year: 2009

description: Somatostatin is an inhibitory neuroendocrine peptide that exerts its effects through 5 functionally distinct receptor subtypes (SSTR1-5). Somatostatin analogues have been shown to be effective in inhibiting intimal hyperplasia after balloon induced vascular injury. However, the exact SSTR subtype responsible for the inhibitory effect of somatostatin on intimal hyperplasia is unknown. Purpose'. To define the presence and abundance of the SSTR-2 subtype in a rat iliac balloon injury model of intimal hyperplasia. Methods'. Transaortic balloon injury of the rat iliac artery was carried out. Rats were sacrificed at 48 hours, 1 week and 1 month post injury, perfusion fixed and samples of iliac arteries were immunostained with antibodies against SSTR 1,2, and 3. Expression of SSTR-2 was confirmed by reverse transcriptase polymerase chain reaction (RT-PCR). The PCR product was sequenced to confirm its identity. Results: Immunocytochemical staining demonstrated the presence of SSTR2 on the intimal surfaces of normal and injured vessels. SSTR2-immunoreactivity was more prominent at 1 week and 1 month post injury compared with 48 hours post injury. There was no immunostaining with SSTR1 and SSTR3 antibodies. PCR results confirm elevated SSTR2 in injured arteries. Conclusion: SSTR2 is expressed on endothelial cells in normal and injured rat vessels. Its abundance in the injured vessel was increased up to 1 month post injury.
การนำคำภาษาอังกฤษมาสร้างเป็นคำซ้อนและคำซ้ำในภาษาไทย
Creators: name: พรทิพย์ เฉิดฉินนภา
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2016
Subjects: -

description: วรรณวิทัศน์, 16, พฤศจิกายน, 192-205
El conflicto como unidad de asociación, antagonismo y síntesis. Lucha, cohesión y definición en la huelga de los trabajadores subcontratados de la gran minería del cobre en Chile
Creators: name: Flores, Mauricio E. Muñóz
Publisher: name: Sociedad y Discurso
Year: 2014

description: El año 2007 los trabajadores subcontratados de la Gran Minería del cobre chileno (GMC), organizados en la Confederación de Trabajadores Subcontratados del Cobre (CTC), sostuvieron una huelga que los enfrentó a la empresa estatal CODELCO, el mayor productor de cobre del mundo, durante 37 días. El análisis de este proceso demuestra cómo el conflicto es un núcleo relacional que al mismo tiempo que emana condiciones para generar solidaridad al interior de los grupos, permite la proyección y puesta en forma de vínculos externos, sean estos con adversarios o colaboradores, en virtud de alcanzar los objetivos propios de las agrupaciones. El conflicto, desde esta perspectiva, puede ser concebido como una especie de crisol en el cual se funde el material simbólico que conforman los sentidos y configura las identidades de los sujetos que se ven inmersos en este proceso, promoviendo la asociatividad y solidaridad, cargando de significados comunes y orientando las prácticas cotidianas y las acciones colectivas de los actores.
description: Sociedad y Discurso, No 25 (2014)
Solidaridad económica, Buen Vivir y (Des)Colonialidad del poder
Creators: name: Pimentel, Boris Marañón
name: Córdova, Dania López
Publisher: name: Sociedad y Discurso
Year: 2014

description: Se discuten las posibilidades de la solidaridad económica como parte decisiva de un proyecto alternativo societal como el Buen Vivir, considerando la crisis contemporánea del patrón de poder capitalista, moderno/colonial. La (Des)Colonialidad del poder, plantea la necesidad de una ruptura epistemológica respecto a la forma en que el conocimiento científico liberal, en tanto una expresión de las relaciones de poder en la colonialidad-modernidad capitalista, ha impuesto una visión única, natural y homogénea de la vida social y de la economía. Por tanto, según la (Des)Colonialidad, Estado, democracia representativa, mercado, empresa capitalista, dinero, familia patriarcal, explotación de la naturaleza, explotación humana, conocimiento positivista y racionalista, entre otros, no son sino una manera de concebir la vida asociada a los intereses del capitalismo por dominar y explotar; una concepción basada en el eurocentrismo, en una manera distorsionada y distorsionante de explicar la realidad y sus posibilidades de transformación, que nos hace entender la vida social desde el espejo de Europa, tomándola como meta civilizatoria, tratando infructuosamente de repetir su recorrido histórico reproduciendo su racionalidad instrumental, su manera de conocer, sus instituciones, sus valores y normas y su imaginario. Dada la crisis mundial del trabajo asalariado, una ruptura epistemológica descolonial es imprescindible para pensar y practicar la emancipación de la humanidad y la naturaleza de la prisión eurocéntrica capitalista, y para tratar de ubicar la emergencia de la solidaridad económica en un sentido orientado al autogobierno, a la desmercantilización del trabajo, de la vida y de la naturaleza, y a la reciprocidad. Se requiere establecer que la economía se practica bajo diversas modalidades organizativas e impulsar relaciones sociales sujeto-sujeto, entre las personas y con la naturaleza, para satisfacer las necesidades básicas a partir de la producción, distribución y consumo de valores de uso, instituyendo relaciones solidarias dentro y entre las diversas fases de la economía.
description: Sociedad y Discurso, No 25 (2014)
La explotación del término Solidaridad en el discurso político mexicano
Creators: name: Guerrero, Alejandro Vásquez
Publisher: name: Sociedad y Discurso
Year: 2014

description: Sin lugar a dudas, la mayor tragedia que se ha presentado en el México contemporáneo ha sido el terremoto que se presentó el 19 de septiembre de 1985. A raíz del desastre, la intensa movilización de los capitalinos llevó a una nueva concepción de organización dentro de la sociedad civil, a una nueva concepción de solidaridad.
Dicha movilización fue explotada en el discurso político mexicano, lo cual pudo haber coadyuvado para frenar levantamientos sociales pues tras el desastre se manifestó una respuesta gubernamental que difícilmente podría calificarse como adecuada, ello en el marco de un disgusto popular como producto de la profunda crisis económica por la que se atravesaba en el México de aquel entonces y que llevó a una crisis de legitimidad.
El propósito del presente artículo es realizar un acercamiento a la construcción y reconstrucción del término solidaridad en los discursos del ex presidente Miguel de la Madrid Hurtado con relación a los mencionados sismos. Para ello se hace uso del análisis de discurso como enfoque teórico-metodológico; específicamente se utiliza una metodología que emana de las propuestas de John B. Thompson y Jean-Blaise Grize.
description: Sociedad y Discurso, No 25 (2014)
Solidaridad y acción política
Creators: name: Andrade, Marco Aranda
name: Agustín, Óscar García
Publisher: name: Sociedad y Discurso
Year: 2014

description: El 26 de septiembre de 2014, en el estado de Guerrero, México, 43 estudiantes de la Escuela Normal Rural Raúl Isidro Burgos de Ayotzinapa fueron detenidos y desaparecidos por policías municipales en colusión con integrantes del crimen organizado, ligados a la estructura del estado mexicano. En los hechos que arrebataron la libertad a los jóvenes, fueron asesinadas seis personas y 25 más resultaron heridas. La desaparición forzada y el asesinato indiscriminado son hoy día una constante en aquel país y en ese estado particular que posee una historia de resistencia popular acentuada desde la segunda mitad del siglo XX.
description: Sociedad y Discurso, No 25 (2014)
Using Phase Dynamics to Study Partial Synchrony: Three Examples
Creators: name: Teichmann, Erik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Partial synchronous states appear between full synchrony and asynchrony and exhibit many interesting properties. Most frequently, these states are studied within the framework of phase approximation. The latter is used ubiquitously to analyze coupled oscillatory systems. Typically, the phase dynamics description is obtained in the weak coupling limit, i.e., in the first-order in the coupling strength. The extension beyond the first-order represents an unsolved problem and is an active area of research. In this paper, three partially synchronous states are investigated and presented in order of increasing complexity. First, the usage of the phase response curve for the description of macroscopic oscillators is analyzed. To achieve this, the response of the mean-field oscillations in a model of all-to-all coupled limit-cycle oscillators to pulse stimulation is measured. The next part treats a two-group Kuramoto model, where the interaction of one attractive and one repulsive group results in an interesting solitary state, situated between full synchrony and self-consistent partial synchrony. In the last part, the phase dynamics of a relatively simple system of three Stuart-Landau oscillators are extended beyond the weak coupling limit. The resulting model contains triplet terms in the high-order phase approximation, though the structural connections are only pairwise. Finally, the scaling of the new terms with the coupling is analyzed.
description: 16 pages, 6 figures
The Westerbork HI Survey of spiral and irregular galaxies III: HI observations of early-type disk galaxies
Creators: name: Noordermeer, E.
name: van der Hulst, J. M.
name: Sancisi, R.
name: Swaters, R. A.
name: van Albada, T. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present HI observations of 68 early-type disk galaxies from the WHISP survey. They have morphological types between S0 and Sab and absolute B-band magnitudes between -14 and -22. These galaxies form the massive, high surface-brightness extreme of the disk galaxy population, few of which have been imaged in HI before. The HI properties of the galaxies in our sample span a large range; the average values of M_HI/L_B and D_HI/D_25 are comparable to the ones found in later-type spirals, but the dispersions around the mean are larger. No significant differences are found between the S0/S0a and the Sa/Sab galaxies. Our early-type disk galaxies follow the same HI mass-diameter relation as later-type spiral galaxies, but their effective HI surface densities are slightly lower than those found in later-type systems. In some galaxies, distinct rings of HI emission coincide with regions of enhanced star formation, even though the average gas densities are far below the threshold of star formation derived by Kennicutt (1989). Apparently, additional mechanisms, as yet unknown, regulate star formation at low surface densities. Many of the galaxies in our sample have lopsided gas morphologies; in most cases this can be linked to recent or ongoing interactions or merger events. Asymmetries are rare in quiescent galaxies. Kinematic lopsidedness is rare, both in interacting and isolated systems. In the appendix, we present an atlas of the HI observations: for all galaxies we show HI surface density maps, global profiles, velocity fields and radial surface density profiles.
description: 24 pages, 11 figures. Accepted for publication in A&A. A version with the full atlas can be downloaded from http://www.astro.rug.nl/~edo/WHISPIII.ps.gz (gzipped postscript, 9.3Mb)
Internacionalismo negro, antifascismo y la construcción de la solidaridad
Creators: name: Featherstone, David
Publisher: name: Sociedad y Discurso
Year: 2014

description: Este artículo se centra en la importancia de tales formas de solidaridad e internacionalismo forjados ‘desde abajo’ e indaga en los retos que el reconocimiento de estas formas de solidaridad e internacionalismo conlleva para las historias y geografías existentes de la izquierda. Se tienen en consideración las formas en que la organización antifascista y anticolonial contribuyó a conformar las experiencias y opiniones políticas de los voluntarios afroamericanos que, con las Brigadas Internacionales, lucharon del lado de la República durante la guerra civil española. A modo de conclusión, se ofrecen algunas reflexiones sobre las posibilidades abiertas por las solidaridades internacionalistas en la coyuntura actual.
description: Sociedad y Discurso, No 25 (2014)
Exploration of Aspherical Ejecta Properties in Type Ia Supernova: Progenitor Dependence and Applications to Progenitor Classification
Creators: name: Leung, Shing-Chi
name: Diehl, Roland
name: Nomoto, Ken'ichi
name: Siegert, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Several explosions of thermonuclear supernovae (SNe Ia) have been found to exhibit deviations from spherical symmetry upon closer inspection. Examples are the gamma-ray lines from SN 2014J as measured by INTEGRAL/SPI, and morphology information from radioactive isotopes in older remnants such as Tycho. A systematic study on the effects of parameters such as ignition geometry and burning morphology in SNe Ia is still missing. We use a 2D hydrodynamics code with post-processing nucleosynthesis and simulate the double detonations in a sub-Chandrasekhar mass carbon-oxygen white dwarf starting from the nuclear runaway in the accumulated He envelope towards disruption of the white dwarf. We explore potential variety through four triggering scenarios that sample main asymmetry drivers. We further investigate their global effects on the aspherical structure of the ejecta based on individual elements. We apply the results to the well observed SN 2014J and other recently observed SN remnants in order to illustrate how these new observational data together with other observed quantities help to constrain the explosion and the progenitors of SNe Ia.
description: 28 pages, 26 figures, published in Astrophysical Journal. Submitted at 23 September 2019, accepted at 10 November 2020, published at 12 March 2021
Effective free-fermionic form factors and the XY spin chain
Creators: name: Gamayun, O.
name: Iorgov, N.
name: Zhuravlev, Yu.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce effective form factors for one-dimensional lattice fermions with arbitrary phase shifts. We study tau functions defined as series of these form factors. On the one hand we perform the exact summation and present tau functions as Fredholm determinants in the thermodynamic limit. On the other hand simple expressions of form factors allow us to present the corresponding series as integrals of elementary functions. Using this approach we re-derive the asymptotics of static correlation functions of the XY quantum chain at finite temperature.
Slides of the panel discussion "NS-Fachgeschichte Theaterwissenschaft. Aktuelle Forschungen als Vita activa"
Creators: name: Illmayer, Klaus
name: Peter, Birgit
name: Tiefenbacher, Sara
Publisher: name: Zenodo
Year: 2024
Subjects: History of Theatre studies

description: Slides zur Podiumsdiskussion, Montag, 11. Dezember 2023, 14.00, Wien - Depot (1070, Breite Gasse 3) und OnlineDie Aufzeichnung der Podiumsdiskussion findet sich hier: https://phaidra.univie.ac.at/detail/o:2040770

Das FWF finanzierte Projekt “Fachgeschichte Theaterwissenschaft: Schweiz/Österreich” untersucht nicht nur die nationalsozialistische Verwobenheit des Faches im deutschsprachigen Raum, sondern berücksichtigt sowohl postnazistische Weiterführungen als auch verdrängte Beiträge zur Entwicklung des Faches. In der Podiumsdiskussion sollen Positionen und Diskussionen gesammelt werden, die für den weiteren Projektverlauf berücksichtigt werden. Beispielhaft ist die Wiener Institutszeitung “Maske und Kothurn” zu erwähnen, deren Etablierung eng mit der nationalsozialistischen Gründungsgeschichte des Wiener Instituts verbunden ist. Mit der ersten Ausgabe von “TFMJ” - der Neukonzeption dieser Institutszeitung - zum Thema “Demaskieren. Fachgeschichte und Erinnerungspolitik als Vita activa” werden Hintergründe aufgezeigt und Positionen formuliert, die zur “NS-Fachgeschichte der Theaterwissenschaft” aktuelle Forschungen einbringen. Im Rahmen der Podiumsdiskussion werden Autor:innen Einblicke in ihre Beiträge geben.
La solidaridad en la era de las redes digitales: del zapatismo al otro mundo posible
Creators: name: Sancho, Guiomar Rovira
Publisher: name: Sociedad y Discurso
Year: 2014

description: En la era de la interconexión digital, la noción de solidaridad como vínculo político transnacional apela a la posibilidad de crear nociones comunes para la acción colectiva y se distingue de otras formas en que la palabra solidaridad es utilizada en contextos diversos. Este artículo analizar teóricamente la especificidad de la solidaridad política transnacional que se sostiene en interacciones tecnológicamente mediadas, poniendo como ejemplo la red que surge alrededor de la rebelión zapatista de Chiapas a mediados de los noventa que, como invocación de responsabilidad común, sirvió de inspiración para la movilización en varios lugares del mundo y dio pie al ciclo de protestas globales contra el neoliberalismo.
description: Sociedad y Discurso, No 25 (2014)
Fast Generation of Unlabelled Free Trees using Weight Sequences
Creators: name: Brown, Paul
name: Fenner, Trevor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: G.2.2; E.1
subject: 68R10

description: In this paper, we introduce a new representation for ordered trees, the weight sequence representation. We then use this to construct new representations for both rooted trees and free trees, namely the canonical weight sequence representation. We construct algorithms for generating the weight sequence representations for all rooted and free trees of order n, and then add a number of modifications to improve the efficiency of the algorithms. Python implementations of the algorithms incorporate further improvements by using generators to avoid having to store the long lists of trees returned by the recursive calls, as well as caching the lists for rooted trees of small order, thereby eliminating many of the recursive calls. We further show how the algorithm can be modifed to generate adjacency list and adjacency matrix representations for free trees. We compared the run-times of our Python implementation for generating free trees with the Python implementation of the well-known WROM algorithm taken from NetworkX. The implementation of our algorithm is over four times as fast as the implementation of the WROM algorithm. The run-times for generating adjacency lists and matrices are somewhat longer than those for weight sequences, but are still over three times as fast as the corresponding implementations of the WROM algorithm.
description: 21 pages, 1 table and 8 figures
Schoeps, Hans-Joachim: Jüdisch-christliches Religionsgespräch in neunzehn Jahrhunderten
Creators: name: Kg.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 33 Nr. 3 (1984): Ökumenische Rundschau, Band 33, Heft 3
Constraints on Planets in Nearby Young Moving Groups Detectable by High-Contrast Imaging and Gaia Astrometry
Creators: name: Wallace, A. L.
name: Ireland, M. J.
name: Federrath, C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The formation of giant planets is best studied through direct imaging by observing planets both during and after formation. Giant planets are expected to form either by core accretion, which is typically associated with low initial entropy (cold-start models) or by gravitational instability, which corresponds to a high initial entropy of the gas (hot-start models). Thus, constraining the initial entropy provides insight into the planet formation mechanism and determines the resultant brightness evolution. We find that, by observing planets in nearby moving groups of known age both through direct imaging and astrometry with Gaia, it will be possible to constrain the initial entropy of giant planets. We simulate a set of planetary systems in stars in nearby moving groups identified by BANYAN $Σ$ and assume a model for planet distribution consistent with radial velocity detections. We find that Gaia should be able to detect approximately 50% of planets in nearby moving groups greater than ~0.3 M$_\text{J}$. Using 5$σ$ contrast limits of current and future instruments, we calculate the flux uncertainty, and using models for the evolution of the planet brightness, we convert this to an initial entropy uncertainty. We find that, for future instruments such as MICADO and METIS on E-ELT and VIKiNG with VLTI, the entropy uncertainty is less than 0.5 $k_{B}$/baryon, showing that these instruments should be able to distinguish between hot and cold-start models.
description: Final version, submitted to MNRAS
Arecibo timing and single-pulse observations of 17 pulsars
Creators: name: Champion, D. J.
name: Lorimer, D. R.
name: McLaughlin, M. A.
name: Xilouris, K. M.
name: Arzoumanian, Z.
name: Freire, P. C. C.
name: Lommen, A. N.
name: Cordes, J. M.
name: Camilo, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on timing and single-pulse observations of 17 pulsars discovered at the Arecibo observatory. The highlights of our sample are the recycled pulsars J1829+2456, J1944+0907 and the drifting subpulses observed in PSR J0815+0939. For the double neutron star binary J1829+2456, in addition to improving upon our existing measurement of relativistic periastron advance, we have now measured the pulsar's spin period derivative. This new result sets an upper limit on the transverse speed of 120 km/s and a lower limit on the characteristic age of 12.4 Gyr. From our measurement of proper motion of the isolated 5.2-ms pulsar J1944+0907, we infer a transverse speed of 188 +/- 65 km/s. This is higher than that of any other isolated millisecond pulsar. An estimate of the speed, using interstellar scintillation, of 235 +/- 45 km/s indicates that the scattering medium along the line of sight is non-uniform. We discuss the drifting subpulses detected from three pulsars in the sample, in particular the remarkable drifting subpulse properties of the 645-ms pulsar J0815+0939. Drifting is observed in all four components of the pulse profile, with the sense of drift varying among the different components. This unusual `bi-drifting'' behaviour challenges standard explanations of the drifting subpulse phenomenon.
description: 9 pages, 6 figures. Accepted for publication in MNRAS
El génesis femenino de la solidaridad internacional comunista en España
Creators: name: Branciforte, Laura
Publisher: name: Sociedad y Discurso
Year: 2014

description: En este artículo se aborda el tema de la solidaridad internacional a partir de la organización cominterniana del Socorro Rojo Internacional (SRI) que nacía en Rusia en 1922. Se describe, tras un breve estado de la cuestión relativo a la producción historiográfica sobre la solidaridad internacional cominterniana, como ésta organización en España, tras la revolución de octubre del ’34, asume las características de un gran “movimiento solidario”. El aspecto que se señala es que a partir de este momento el SRI se feminiliza tanto en sus bases como en su dirección, hasta llegar a ser, numérica y cualitativamente en la guerra civil, una de las más importantes organizaciones del antifascismo femenino. Se destaca finalmente que no solo la preponderancia de las actividades político-solidarias, llevadas a cabo por las mujeres en el ámbito del Socorro Rojo Internacional, explica la adopción de una perspectiva de género a la hora de abordar este tema. La elección del tema de la solidaridad antifascista como ámbito de actuación de las mujeres se sustenta en la afirmación de una idea de solidaridad muy concienciada de su nueva función política, que no solo asistencial y benéfica.
description: Sociedad y Discurso, No 25 (2014)
Streaming end-to-end multi-talker speech recognition
Creators: name: Lu, Liang
name: Kanda, Naoyuki
name: Li, Jinyu
name: Gong, Yifan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: End-to-end multi-talker speech recognition is an emerging research trend in the speech community due to its vast potential in applications such as conversation and meeting transcriptions. To the best of our knowledge, all existing research works are constrained in the offline scenario. In this work, we propose the Streaming Unmixing and Recognition Transducer (SURT) for end-to-end multi-talker speech recognition. Our model employs the Recurrent Neural Network Transducer (RNN-T) as the backbone that can meet various latency constraints. We study two different model architectures that are based on a speaker-differentiator encoder and a mask encoder respectively. To train this model, we investigate the widely used Permutation Invariant Training (PIT) approach and the Heuristic Error Assignment Training (HEAT) approach. Based on experiments on the publicly available LibriSpeechMix dataset, we show that HEAT can achieve better accuracy compared with PIT, and the SURT model with 150 milliseconds algorithmic latency constraint compares favorably with the offline sequence-to-sequence based baseline model in terms of accuracy.
description: 5 pages, 3 figures. Accepted to IEEE Signal Processing Letters 2021
Scale invariance and universality of force networks in static granular matter
Creators: name: Ostojic, Srdjan
name: Somfai, Ellak
name: Nienhuis, Bernard
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Force networks form the skeleton of static granular matter. They are the key ingredient to mechanical properties, such as stability, elasticity and sound transmission, which are of utmost importance for civil engineering and industrial processing. Previous studies have focused on the global structure of external forces (the boundary condition), and on the probability distribution of individual contact forces. The disordered spatial structure of the force network, however, has remained elusive so far. Here we report evidence for scale invariance of clusters of particles that interact via relatively strong forces. We analyzed granular packings generated by molecular dynamics simulations mimicking real granular matter; despite the visual variation, force networks for various values of the confining pressure and other parameters have identical scaling exponents and scaling function, and thus determine a universality class. Remarkably, the flat ensemble of force configurations--a simple generalization of equilibrium statistical mechanics--belongs to the same universality class, while some widely studied simplified models do not.
description: 15 pages, 4 figures; to appear in Nature
Modelization of Thermal Fluctuations in G Protein-Coupled Receptors
Creators: name: Pennetta, C.
name: Akimov, V.
name: Alfinito, E.
name: Reggiani, L.
name: Gomila, G.
name: Ferrari, G.
name: Fumagalli, L.
name: Sampietro, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Other Condensed Matter (cond-mat.other)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We simulate the electrical properties of a device realized by a G protein coupled receptor (GPCR), embedded in its membrane and in contact with two metallic electrodes through which an external voltage is applied. To this purpose, recently, we have proposed a model based on a coarse graining description, which describes the protein as a network of elementary impedances. The network is built from the knowledge of the positions of the C-alpha atoms of the amino acids, which represent the nodes of the network. Since the elementary impedances are taken depending of the inter-nodes distance, the conformational change of the receptor induced by the capture of the ligand results in a variation of the network impedance. On the other hand, the fluctuations of the atomic positions due to thermal motion imply an impedance noise, whose level is crucial to the purpose of an electrical detection of the ligand capture by the GPCR. Here, in particular, we address this issue by presenting a computational study of the impedance noise due to thermal fluctuations of the atomic positions within a rhodopsin molecule. In our model, the C-alpha atoms are treated as independent, isotropic, harmonic oscillators, with amplitude depending on the temperature and on the position within the protein (alpha-helix or loop). The relative fluctuation of the impedance is then calculated for different temperatures.
description: 5 pages, 2 figures, Proceeding of the 18-th International Conference on Fluctuations and Noise, 19-23 September 2005, Salamanca, Spain -minor proofreadings-
A real-space renormalization-group calculation for the quantum Z_2 gauge theory on a square lattice
Creators: name: Paik, Steve T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We revisit Fradkin and Raby's real-space renormalization-group method to study the quantum Z_2 gauge theory defined on links forming a two-dimensional square lattice. Following an old suggestion of theirs, a systematic perturbation expansion developed by Hirsch and Mazenko is used to improve the algorithm to second order in an intercell coupling, thereby incorporating the effects of discarded higher energy states. A careful derivation of gauge-invariant effective operators is presented in the Hamiltonian formalism. Renormalization group equations are analyzed near the nontrivial fixed point, reaffirming old work by Hirsch on the dual transverse field Ising model. In addition to recovering Hirsch's previous findings, critical exponents for the scaling of the spatial correlation length and energy gap in the electric free (deconfined) phase are compared. Unfortunately, their agreement is poor. The leading singular behavior of the ground state energy density is examined near the critical point: we compute both a critical exponent and estimate a critical amplitude ratio.
description: 8+16 pages, 11 figures; added some details of numerical procedure, typos corrected, added discussion addressing future applications, accepted for publication in J. Stat. Mech.: Theory Exp
Thermal Treatment Solution for Menstrual Hygiene Sanitary Products
Creators: name: Piascik, Jeffrey
name: Myers, Taylor
name: Hitendra  Chaudhari
name: Lynch, Brendon
name: Elledge, Myles
name: Grant, Brian
name: Teleski, Stephanie
name: Stoner, Brian
Publisher: name: Gates Open Research
Year: 2019

description: S.H.E. (Safe Hygiene for Everyone) is an affordable, fully automated sanitary pad sterile disposal unit engineered to provide dignity and privacy, waste reduction, and safe hygiene. The innovation is designed for use with multiple fuel sources and in shared and public settings, including schools, airports, bus and train stations, cinemas, markets, malls, hotels, factories, restaurants, public toilets, and dormitories. This document serves as a research brief describing the technology and preliminary data
Reuniendo a las bases: estrategia e historia de las protestas del G-20 en Toronto
Creators: name: Wood, Lesley J.
Publisher: name: Sociedad y Discurso
Year: 2014

description: Cuando se anunció la sede de la cumbre del G-8 en 2010, muchos de los organizadores en Toronto fuimos cautelosos. Algunos estábamos preocupados porque el tipo de protestas que podríamos desatar debilitarían la organización local y darían lugar a una grave represión contra las comunidades de gente pobre y migrantes con los cuales trabajamos. Como miembro de la Coalición de Ontario contra la Pobreza (OCAP**), quería asegurarme de que tal evento no desviara la energía de las campañas locales existentes sobre el transporte, el cuidado de la niñez, la pobreza, la asistencia social, la migración y la vivienda. Como muchos, había participado en protestas contra otras cumbres en varias ciudades, recordándolas como eventos excitantes que no obstante dejaron a los organizadores locales quemados –provocando que frecuentemente las organizaciones locales enfrentaran cargos criminales, condiciones de desarticulación, hostilidad local y ruina financiera.
description: Sociedad y Discurso, No 25 (2014)
Sanitation Technology Funder Landscape
Creators: name: Baldi, Marjorie
name: , Bill
Publisher: name: Gates Open Research
Year: 2019

description: Resources to validate new sanitation technologies and prepare for market entry – prerequisites for achieving sustainable, scaled solutions – tend to be quite scarce compared to those available to scale proven solutions. As such, a problematic ‘Pioneer Gap’ exists. This funder landscape seeks to both clarify the ‘Pioneer Gap’ and point readers to potential funding and other resources poised to help fill this problematic gap. Two promising forms of funding are explored in detail: catalytic philanthropy and blended finance leveraging impact investment. A corresponding database highlights potential ‘Pioneer Gap’ funders operating at a global level and in three key geographies – Bangladesh, India, and South Africa.

Of note: the information featured in the accompanying database was derived largely from secondary research. It should be treated as a starting point for further inquiry and be refined based on an organization’s particular goals, needs, and opportunities. For questions about the information provided, please contact Amanda Rose, STeP Market Readiness Lead, at arose@rti.org.

Key topics:
-Pioneer Gap
-Funding opportunities
-Enterprise philanthropy
-Blended finance
-Funder database
Retrofitting Vancouver's most sacred land use: the intensification of ground-oriented housing in single-family neighbourhoods
Creators: name: Patrick, Lyndon Lee
Publisher: name: University of British Columbia
Year: 2009

description: The Metropolitan Vancouver Region is expected to have a population of over 3.3 million within the next 25 years. As a designated growth concentration area, the City of Vancouver is expected to absorb 160,000 people by 2021. While existing plans will allow for future high density developments, 70% of the City's residential areas remain zoned explicitly for single-family use. The intensification of these single-family neighbourhoods is viewed as a way of using the existing housing stock and the existing residential land more efficiently. The intensification techniques that are appropriate for single-family neighbourhoods include: conversion, infill and redevelopment. Planners think that intensification efforts will not only alleviate some of the detrimental impacts of sprawl, but will also provide a more diversified housing stock that will be more appropriate for the needs of an increasingly complex society. Unfortunately, some existing residents have been extremely vocal in opposition to any intensification efforts in their neighbourhoods. The residents claim that any intensification will disrupt the character of their existing single-family neighbourhoods. While the arguments for retaining exclusive single-family neighbourhoods are specious at best, the NIMBY mentality of residents has often proved to be an effective form of opposition to intensification efforts. An approach for overcoming the NIMBY syndrome is a successful program of community outreach. Community outreach attempts to minimize community opposition and to rally support for the development within the community. Attention is focused on the residents who have not already become opponents of the development. A successful community outreach program will limit residents' factual misunderstandings and their exaggerated fears about the project's potential impacts. Negotiations should be undertaken with residents who are willing to compromise; residents who refuse to talk cooperatively should not be brought into the problem-solving process. Future plans for intensification must establish a sense of certainty in the way a neighbourhood will change. The exaggerated sense of fear that residents have about the potential changes in their neighbourhood is the biggest obstacle to overcome if the Metropolitan Vancouver Region is to successfully implement an intensification program into existing single-family neighbourhoods.
Η δημοσιονομική πολιτική των τελευταίων Παλαιολόγων (1354-1453)
Creators: name: Γετίμη, Ζωή Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Δημοσιονομική πολιτική
Βυζαντινή Οικονομία
Παλαιολόγοι
Οικονομική πολιτική
Byzantine fiscal policy
Byzantine economy
Last Palaiologan emperors
Byzantine taxes

description: Αντικείμενο της διατριβής είναι η δημοσιονομική πολιτική των τελευταίων Παλαιολόγων (1354-1453). Στο πρώτο μέρος της μελέτης ερευνώνται οι δαπάνες του βυζαντινού κράτους, στις οποίες περιλαμβάνονται πρωτίστως οι στρατιωτικές δαπάνες και στη συνέχεια οι δαπάνες της εξωτερικής πολιτικής και της διπλωματίας, οι δαπάνες που αφορούσαν στη μισθοδοσία των αυτοκρατορικών αξιωματούχων, καθώς και οι δαπάνες αποπληρωμής του δημόσιου χρέους που απέρρεε από τα δάνεια που συνήπταν οι αυτοκράτορες με δυτικές ηγεμονίες και από την υποχρέωση καταβολής αποζημιώσεων στους Δυτικούς που υφίσταντο οικονομικές απώλειες στα βυζαντινά εδάφη. Στο δεύτερο μέρος της διατριβής μελετώνται τα έσοδα του βυζαντινού κράτους που προέρχονταν κατά κύριο λόγο από τη φορολόγηση των αγροτικών και αλιευτικών δραστηριοτήτων και δευτερευόντως από τους δασμούς και τους φόρους που επιβάλλονταν στις εμπορικές δραστηριότητες. Έσοδα αποκόμιζε το βυζαντινό κράτος και από διάφορα πρόστιμα και ποινές που δεν επιβάλλονταν σε τακτά διαστήματα. Τέλος, ερευνάται η δυνατότητα των αυτοκρατόρων να προσπορίζονται οικονομικούς πόρους από τις ημιαυτόνομες επικράτειες του κράτους.
description: Through the study of the byzantine acts of Mount Athos this dissertation examines the fiscal policy of the last Palaiologan emperors (1354-1453). In the first part of the study, the expenses of the byzantine state are studied, which include primarily the military expenses and then the expenses of foreign policy and diplomacy, the expenses related to the payment of the imperial officials, as well as the expenses of repaying the public debt that it came from the loans contracted by the emperors with Western rulers and from the obligation to pay compensations to the Westerners who suffered financial losses in the byzantine territories. In the second part of the thesis, the revenues of the byzantine state are examined, which came primarily from the taxation of agricultural and fishing activities and secondarily from the taxes imposed on commercial activities. The byzantine state also had revenues from various fines and penalties that were not imposed at regular basis. Finally, the possibility of the emperors to obtain financial resources from the semi-autonomous territories of the state (appanages) is studied.