cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Phase diagram of the J1-J2 Heisenberg second-order topological quantum magnet
Creators: name: Vecsei, Pascal M.
name: Lado, Jose L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Competing interactions in quantum magnets lead to a variety of emergent states, including ordered phases, nematic magnets and quantum spin liquids. Among them, topological quantum magnets represent a promising platform to create topological excitations protected by the bulk many-body excitation gap. Here we establish the phase diagram of a breathing frustrated antiferromagnetic J1-J2-Heisenberg model, featuring both ordered states and a higher-order topological quantum magnet state. Using exact many-body methods based on neural network quantum states and tensor networks, we determine the existence of a first order phase transition between stripe order and the topological quantum magnet and the second order phase transition between the Neel order and quantum magnet phase, further corroborated by calculations of the many-body gap. Using an auxiliary fermion parton formalism, we show the emergence of topological spinon corner modes stemming from the breathing order parameter of the parent Heisenberg model. Our results establish the breathing frustrated square lattice Heisenberg model as a paradigmatic system to engineer topological quantum magnetism, as recently realized in Ti lattices at MgO.
description: 4 figures
Development of a semi-quantitative risk based methodology to rank water industry assets to their need of monitoring in light of the impacts of climate change
Creators: name: Shah, Ravi
Publisher: name: Imperial College London
Year: 2015

description: Over the course of this century water will become ever more critical to people and business. A growing world population and increasing living standards will drive inexorably rising demand for water, yet at the same time climate change means that our planet will likely to face an increase in both the magnitude and frequency of extreme weather events. Water utility companies are starting to realise the importance of addressing the need of monitoring the impacts of climate change to their assets and ways to adapt. To date, there is no literature that shows a methodology in which water utility companies can effectively rank their assets in terms of their need of monitoring. This study is targeted to the water industry sector, and uses a semi-quantitative risk approach to assign vulnerability and criticality scores to assets in order to create a total risk score. The scores are presented through a risk matrix, which provides a guidance on assets that are most at risk. A various based sensitivity analysis was applied to the output, a risk tool, and shows that the final risk scores largely reflect the current literature review on how climate change impacts affect water industry assets.
Alca torda Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Charadriiformes
Alcidae
Alca
Alca torda

description: Alca torda [spec. nov.]
A. rostri sulcis quatuor, linea utrinque alba a rostro ad oculos. It. gottl. 286. Fn. svec. 120.
Alca. Clus. exot. 367. Worm. mus. 363. Will. orn. 243. t. 64. f. 1. & t. 65. f. 2. Raj. av. 119. Alb. av. 3. p. 90. t. 95.
Habitat in Europae borealis oceano.
Plures ova solitaria simul in antro rupium pariunt, conjunctis viribus alternatis excludunt, unica excubias agente; erectae incedunt.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 130, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
title: Ανάπλαση παραλιακού μετώπου της πρώην βιομηχανικής ζώνης της Κω: Αποκατάσταση και επανάχρηση του οινοποιείου Cair
title: Coastal front redesign of the former industrial zone of Kos: Restoration and reuse "Cair" winery
Creators: name: Μπαρδα Πηνελοπη
Publisher: name: Technical University of Crete
Year: 2021

description: Αντικείμενο της παρούσας εργασίας είναι η εκπόνηση μιας σειράς προτάσεων ανάπλασης του παραλιακού μετώπου της πόλης της Κω στην πρώην βιομηχανική ζώνη «Κουμ-Μπουρνού». Σκοπός της εργασίας είναι η αναβάθμιση την περιοχής, που χαρακτηρίζεται από αστικά κενά, πλήθος ξενοδοχειακών μονάδων και κέντρων αναψυχής. Οι προτάσεις περιλαμβάνουν τον επανασχεδιασμό της παραλιακής οδού με κύριο γνώμονα την πρόσβαση και κίνηση των πεζών στη περιοχή καθώς και την σύνδεσή της με τον αστικό ιστό μέσω της δημιουργίας κομβικών σημείων- στάσεων.  Επιπλέον εντάσσονται νέες χρήσεις στη περιοχή όπως κατοικίας, πολιτισμού και ελεύθεροι χώροι αστικού πρασίνου που θα λειτουργήσουν ως πόλοι έλξης και θα δώσουν «ζωή» κατά τη χειμερινή περίοδο στη περιοχή. Η σημαντικότερη επέμβαση, που θα λειτουργεί ως τοπόσημο για τη περιοχή, είναι η αποκατάσταση του πρώην Οινοποιείου Cair και η επανάχρησή του ως Μουσείου Οίνου αλλά και πολιτιστικού κέντρου για τη πόλη της Κω.
Evidence Against an Association Between Gamma-Ray Bursts and Type I Supernovae
Creators: name: Graziani, C.
name: Lamb, D. Q.
name: Marion, G. H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a rigorous method, based on Bayesian inference, for calculating the odds favoring the hypothesis that any particular class of astronomical transients produce gamma-ray bursts over the hypothesis that they do not. We then apply this method to a sample of 83 Type Ia supernovae and a sample of 20 Type Ib-Ic supernovae. We find overwhelming odds against the hypothesis that all Type Ia supernovae produce gamma-ray bursts, whether at low redshift ($10^{9}:1$) or high-redshift ($10^{12}:1$), and very large odds ($6000:1$) against the hypothesis that all Type Ib, Ib/c, and Ic supernovae produce observable gamma-ray bursts. We find large odds ($34:1$) against the hypothesis that a fraction of Type Ia supernovae produce observable gamma-ray bursts, and moderate odds ($6:1$) against the hypothesis that a fraction of Type Ib-Ic supernovae produce observable bursts. We have also re-analyzed both a corrected version of the Wang & Wheeler sample of Type Ib-Ic SNe and our larger sample of 20 Type Ib-Ic SNe, using a generalization of their frequentist method. We find no significant evidence in either case of a correlation between Type Ib-Ic SNe and GRBs, consistent with the very strong evidence against such a correlation that we find from our Bayesian analysis.
description: 45 pages, 2 PostScript figures. Uses AASTEX macros. Submitted to The Astrophysical Journal
Particle scale analysis of soil stiffness and elastic wave propagation
Creators: name: Otsubo, Masahide
Publisher: name: Imperial College London
Year: 2016

description: Soils are granular materials consisting of many particles, and the overall response of a soil can be considered to be a complex accumulation of the inter-particle responses. Small-strain soil stiffness is important to predict the ground deformation in situ and in practice and is often deduced from elastic wave velocity in laboratory experiments. The dynamic properties of soils are also important for dynamic analyses including site response analysis. Stress waves propagate through soil via the grain contact network, thus the actual particle-scale mechanics differ from those assumed in continuum mechanics which is often used to simulate and analyse stress wave propagation. Thus the particle properties including surface characteristics should have a direct impact on the overall response of soil to stress wave disturbances. Surface roughness effects on the inter-particle response have previously been considered in the experimental work of Cavarretta (2009) and in the dynamic analyses using the discrete element method (DEM) described by O’Donovan (2013). This research aims to develop understanding of the extent of the sensitivity of soil stiffness to the contact rheology by adopting theoretical, numerical (DEM) and experimental approaches. The theoretical approach follows Yimsiri & Soga (2000) who combined micromechanical effective medium theory and a rough surface contact model; their approach is revisited here considering more recent UK-based tribology studies. The contact laws considered in the DEM analyses presented here include particle surface roughness, partial slip at tangential contacts, and spin resistance based on these developments by the work of O’Donovan (2013). The experimental approach used two types of dynamic tests: bender element tests in a cubical cell apparatus, and shear plate tests in a triaxial apparatus. For both test types, smooth and rough surface spherical ballotini are used to study the surface roughness effects on the sample shear modulus. Shear plates are not commonly used in soil mechanics dynamic testing and so the study also included an assessment of this technology. The data generated show that the small-strain stiffness of granular materials is measurably reduced sensitively with the surface roughness especially at a low stress level. This explains partially a higher exponent n value in the relationship between the shear modulus and the confining stress (n > 0.5). As the stress level increases the shear modulus of the assembly of rough particles approach the smooth equivalent.
O documento fotográfico: um objeto social e de comunicação para a geração de conhecimento
Creators: name: Rodrigues, Joana Sousa
Publisher: name: figshare
Year: 2018
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies

description: O documento fotográfico constitui um enorme desafio para aquela que é chamada de Era de Informação e que vem aprumada com o avanço tecnológico, nomeadamente a imposição do digital, através de dispositivos de captura de imagem. O tratamento de informação fotográfica, embora, à primeira vista, espelhe um leque imenso de oportunidades e benefícios ainda padece de um estudo limitado e pouco desenvolvido. Se por um lado, os documentos de caráter textual estão presentes, em esmagadora maioria, nos centros de informação e, por esse motivo, o sua análise e tratamento são realizadas quotidianamente, por outro, a imagem tem vindo a posicionar-se, ainda que lentamente, na sociedade de informação como um meio implacável na geração de conhecimento.
Multiparty session types for dynamic verification of distributed systems
Creators: name: Neykova, Rumyana
Publisher: name: Imperial College London
Year: 2016

description: In large-scale distributed systems, each application is realised through interactions among distributed components. To guarantee safe communication (no deadlocks and communication mismatches) we need programming languages and tools that structure, manage, and policy-check these interactions. Multiparty session types (MPST), a typing discipline for structured interactions between communicating processes, offers a promising approach. To date, however, session types applications have been limited to static verification, which is not always feasible and is often restrictive in terms of programming API and specifying policies. This thesis investigates the design and implementation of a runtime verification framework, ensuring conformance between programs and specifications. Specifications are written in Scribble, a protocol description language formally founded on MPST. The central idea of the approach is a dynamic monitor, which takes a form of a communicating finite state machine, automatically generated from Scribble specifications, and a communication runtime stipulating a message format. We extend and apply Scribble-based runtime verification in manifold ways. First, we implement a Python library, facilitated with session primitives and verification runtime. We integrate the library in a large cyber-infrastructure project for oceanography. Second, we examine multiple communication patterns, which reveal and motivate two novel extensions, asynchronous interrupts for verification of exception handling behaviours, and time constraints for enforcement of realtime protocols. Third, we apply the verification framework to actor programming by augmenting an actor library in Python with protocol annotations. For both implementations, measurements show Scribble-based dynamic checking delivers minimal overhead and allows expressive specifications. Finally, we explore a static analysis of Scribble specifications as to efficiently compute a safe global state from which a monitored system of interacting processes can be recovered after a failure. We provide an implementation of a verification framework for recovery in Erlang. Benchmarks show our recovery strategy outperforms a built-in static recovery strategy, in Erlang, on a number of use cases.
title: Design of Multimodal Absorption in the Mid-IR : A Metal Dielectric Metal Approach
Creators: name: Pech-May, Nelson W.
name: Lauster, Tobias
name: Retsch, Markus
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: metal−dielectric−metal periodic structures
subject: mid-IR absorption
subject: magnetic polariton absorption
subject: multimodal absorption
subject: broadband absorption
subject: thermal emission
subject: radiative cooling
subject: microfabrication
subject: 540

description: Specific control on the mid-infrared (mid-IR) emission properties is attracting increasing attention for thermal camouflage and passive cooling applications. Metal–dielectric–metal (MDM) structures are well known to support strong magnetic polariton resonances in the optical and near-infrared range. We extend the current understanding of such an MDM structure by specifically designing Au disc arrays on top of ZnS–Au–Si substrates and pushing their resonances to the mid-IR regime. Therefore, we combine fabrication via lift-off photolithography with the finite element method and an inductance–capacitance model. With this combination of techniques, we demonstrate that the magnetic polariton resonance of the first order strongly depends on the individual disc diameter. Furthermore, the fabrication of multiple discs within one unit cell allows a linear combination of the fundamental resonances to conceive broadband absorptance. Quite importantly, even in mixed resonator cases, the absorptance spectra can be fully described by a superposition of the individual disc properties. Our contribution provides rational guidance to deterministically design mid-IR emitting materials with specific narrow- or broadband properties.
Coordinating Dynamical Routes with Statistical Physics on Space-time Networks
Creators: name: Yeung, Chi Ho
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Coordination of dynamical routes can alleviate traffic congestion and is essential for the coming era of autonomous self-driving cars. However, dynamical route coordination is difficult and many existing routing protocols are either static or without inter-vehicle coordination. In this paper, we first apply the cavity approach in statistical physics to derive the theoretical behavior and an optimization algorithm for dynamical route coordination, but they become computational intractable as the number of time segments increases. We therefore map static spatial networks to space-time networks to derive a computational feasible message-passing algorithm compatible with arbitrary system parameters; it agrees well with the analytical and algorithmic results of conventional cavity approach and outperforms multi-start greedy search in saving total travel time by as much as 15% in simulations. The study sheds light on the design of dynamical route coordination protocols, and the solution to other dynamical problems via static analytical approaches on space-time networks.
description: 12 pages, 11 figures
Three-dimensional non-relativistic Hietarinta supergravity
Creators: name: Concha, Patrick
name: Rodríguez, Evelyn
name: Salgado, Sebastián
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we present the non-relativistic regime of the Hietarinta gravity theory and its extension to supergravity. At the bosonic level, we derive the non-relativistic version of the Hietarinta model by employing a contraction process and addressing the non-degeneracy of the invariant metric. To incorporate supersymmetry, we apply the Lie algebra expansion method to obtain the non-relativistic formulation of $\mathcal{N}=2$ Hietarinta supergravity. Our results reveal that the non-relativistic Hietarinta theory encompasses the extended Bargmann (super)gravity as a special case, yet it differs significantly from other existing non-relativistic (super)gravity models. Furthermore, we generalize our analysis to include a cosmological constant term in the non-relativistic Hietarinta (super)gravity action and examine its effects on the torsion structure.
description: v2, 32 pages, version accepted in The European Physical Journal C
Empirical Software Engineering: From Discipline to Interdiscipline
Creators: name: Fernández, Daniel Méndez
name: Passoth, Jan-Hendrik
Publisher: name: arXiv
Year: 2018
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Empirical software engineering has received much attention in recent years and coined the shift from a more design-science-driven engineering discipline to an insight-oriented, and theory-centric one. Yet, we still face many challenges, among which some increase the need for interdisciplinary research. This is especially true for the investigation of human-centric aspects of software engineering. Although we can already observe an increased recognition of the need for more interdisciplinary research in (empirical) software engineering, such research configurations come with challenges barely discussed from a scientific point of view. In this position paper, we critically reflect upon the epistemological setting of empirical software engineering and elaborate its configuration as an Interdiscipline. In particular, we (1) elaborate a pragmatic view on empirical research for software engineering reflecting a cyclic process for knowledge creation, (2) motivate a path towards symmetrical interdisciplinary research, and (3) adopt five rules of thumb from other interdisciplinary collaborations in our field before concluding with new emerging challenges. This shall support stopping to treating empirical software engineering as a developing discipline moving towards a paradigmatic stage of normal science, but as a configuration of symmetric interdisciplinary teams and research methods.
description: Preprint accepted by Journal of Systems and Software (controversy corner)
Cenários prospectivos com base nos projetos de lei para acessibilidade na web no Brasil
Creators: name: Araújo, Wagner Junqueira De
name: Ítalo José Bastos Guimarães
name: Marckson Roberto Ferreira De Sousa
Publisher: name: figshare
Year: 2018
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies

description: Aborda a temática da acessibilidade e tem como objetivo elaborar cenários prospectivos para acessibilidade na web com base nos projetos de lei do Senado Federal e da Câmara dos Deputados. Apresenta um levantamento sobre as principais leis sobre acessibilidade que estão em vigor no Brasil. Para tanto, utiliza-se do método de matrizes de impacto cruzado de Gordon (1999). Foi necessário realizar um levantamento sobre os atuais projetos de lei que estão em tramitação para embasar a projeção de cenários. Deste modo, identificou-se quatro projetos de lei que tratam da acessibilidade na web. A partir dos dados elaborados por meio do método de Gordon (1999), foi possível desenvolver três cenários, a saber: a) pessimista – não ocorrência dos eventos previstos gerando o arquivamento ou não aprovação dos projetos em tramitação; b) realista – cenário mais provável é a ocorrência do desenvolvimento de Centros de Inclusão Digital (CID) por meio da aprovação da Lei da Câmara nº 28, de 2011; c) otimista – além do desenvolvimento do CID é possível que ocorra a implantação de programas de software nas bibliotecas públicas para uso de deficientes visuais, como também a promoção da acessibilidade aos portais públicos na web no médio prazo. Sendo assim, observa-se por meio dos cenários propostos, um panorama sobre o que pode ocorrer em relação aos projetos de lei avaliados.
Alca impennis Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Charadriiformes
Alcidae
Alca
Alca impennis

description: Alca impennis [spec. nov.]
A. rostro compresso-ancipiti sulcato, macula ovata utrinque ante oculos. Fn. Svec. 119.
Anser magellanicus. Worm. mus. 300. t. 301.
Penguin. Will. ornith. 244. t. 65. Edw. av. 147. t. 147.
Habitat in Europa arctica.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 130, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
DEN HOLZBAU LIEBEN LERNEN
Creators: name: Birgmann David
name: König Teresa
Publisher: name: Zenodo
Year: 2020
Subjects: BIGWOOD INTERREG
timber constructions
multi-storey timber buildings
timber structure
timber wall stratigraphy
construction details
technical draws
design

description: Techinical presentation with a series of draws, stratigraphies, photos of constructional details/construction phases in different types of buildings, from the single family house, big residential complexes.
Black Hole, Jet, and Disk: The Universal Engine
Creators: name: Falcke, Heino
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper I review the results of our ongoing project to investigate the coupling between accretion disk and radio jet in galactic nuclei and stellar mass black holes. We find a good correlation between the UV bump luminosity and the radio luminosities of AGN, which improves upon the usual [OIII]/radio correlations. Taking mass and energy conservation in the jet/disk system into account we can successfully model the correlation for radio-loud and radio-weak quasars. We find that jets are comparable in power to the accretion disk luminosity, and the difference between radio-loud and radio-weak may correspond to two natural stages of the relativistic electron distribution -- assuming that radio weak quasars have jets as well. The distribution of flat- and steep-spectrum sources is explained by bulk Lorentz factors gamma_j ~ 5-10. The absence of radio-loud quasars below a critical optical luminosity coincides with the FR I/FR II break and could be explained by a powerdependent, ``closing'' torus. This points towards a different type of obscuring torus in radio-loud host galaxies which might be a consequence of past mergers (e.g. by the temporary formation of a binary black-hole). Interaction of the jet with the closing torus might in principle also help to make a jet radio-loud. Turning to stellar-mass black holes we find that galactic jet sources can be described with the same coupled jet/disk model as AGN which is suggestive of some kind of universal coupling between jet and accretion disk around compact objects.
description: to appear in ``Jets from Stars and Galactic Nuclei'', Springer Lecture Notes, plain TeX, 16 pages, also at http://www.astro.umd.edu/~hfalcke/publications.html
Hubble Space Telescope WFPC2 Imaging of SN 1979C and Its Environment
Creators: name: Van Dyk, Schuyler D.
name: Peng, Chien Y.
name: Barth, Aaron J.
name: Filippenko, Alexei V.
name: Chevalier, Roger A.
name: Fesen, Robert A.
name: Fransson, Claes
name: Kirshner, Robert P.
name: Leibundgut, Bruno
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The locations of supernovae in the local stellar and gaseous environment in galaxies contain important clues to their progenitor stars. As part of a program to study the environments of supernovae using Hubble Space Telescope (HST) imaging data, we have examined the environment of the Type II-L SN 1979C in NGC 4321 (M100). We place more rigorous constraints on the mass of the SN progenitor, which may have had a mass M \approx 17--18 M_sun. Moreover, we have recovered and measured the brightness of SN 1979C, m=23.37 in F439W (~B; m_B(max) = 11.6), 17 years after explosion. .
description: 18 pages, 8 figures, submitted to PASP
Unbiased Cluster Lens Reconstruction
Creators: name: Squires, Gordon
name: Kaiser, Nick
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Weak lensing observations measure the shear field and hence the gradient of the dimensionless surface density $κ$. We present several new algorithms to recover $κ$ {}from shear estimates on a finite region and compare how they perform with realistically noisy data. The reconstruction methods studied here are divided into 2 classes: direct reconstruction and regularized inversion. Direct reconstruction techniques express $κ$ as a 2D integral of the shear field. This yields an estimator for $κ$ as a discrete sum over background galaxy ellipticities which is straightforward to implement, and allows a simple estimate of the noise. We study 3 types of direct reconstruction methods: 1) $κ$-estimators that measure the surface density at any given target point relative to the mean value in a reference region 2) a method that explicitly attempts to minimize the rotational part of $\nabla κ$ that is due to noise and 3) a novel, exact Fourier-space inverse gradient operator. We also develop two `regularized maximum likelihood' methods, one of which employs the conventional discrete Laplacian operator as a regularizer and the other uses regularization of all components in Fourier space. We compare the performance of all the estimators by means of simulations and noise power analysis. A general feature of these unbiased methods is an enhancement of the low frequency power which, for some of the methods, can be quite severe. We find the best performance is provided by the maximum likelihood method with Fourier space regularization although some of the other methods perform almost as well.
description: 37 pages, latex, figures included
Significados e contextos: leitura e interpretação na Ciência da Informação
Creators: name: Lourival Pinto
Publisher: name: figshare
Year: 2018
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies

description: Este artigo tem como objetivo refletir sobre a relação entre as leituras, os significados, as interpretações e seus contextos, na ótica da Ciência da Informação. A pesquisa quanto aos objetivos, é exploratória, quanto aos procedimentos é bibliográfica, e traz como hipótese que asinterpretações dependem diretamente do contexto espaço-tempo do leitor. O artigo traz uma revisão bibliográfica elegendo como temas principais de investigação os significados e seus contextos de significação. As considerações finais confirmam, mesmo que a priori, que as leituras são resultados de vivências dos leitores, sejam elas, resultantes de leituras textuais ou leituras de mundo. Além disso, o artigo defende que essas questões são fundamentais nos trabalhos de organização da informação e do conhecimento, e que as vivências podem acontecer nos processos de formação de leitores, facilitando a leitura das pessoas em estruturantes significantes maiscomplexas.
How Does Code Pretraining Affect Language Model Task Performance?
Creators: name: Petty, Jackson
name: van Steenkiste, Sjoerd
name: Linzen, Tal
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Large language models are increasingly trained on corpora containing both natural language and non-linguistic data like source code. Aside from aiding programming-related tasks, anecdotal evidence suggests that including code in pretraining corpora may improve performance on other, unrelated tasks, yet to date no work has been able to establish a causal connection by controlling between language and code data. Here we do just this. We pretrain language models on datasets which interleave natural language and code in two different settings: additive, in which the total volume of data seen during pretraining is held constant; and competitive, in which the volume of language data is held constant. We study how the pretraining mixture affects performance on (a) a diverse collection of tasks included in the BigBench benchmark, and (b) compositionality, measured by generalization accuracy on semantic parsing and syntactic transformations. We find that pretraining on higher proportions of code improves performance on compositional tasks involving structured output (like semantic parsing), and mathematics. Conversely, increase code mixture can harm performance on other tasks, including on tasks that requires sensitivity to linguistic structure such as syntax or morphology, and tasks measuring real-world knowledge.
The Local Stability of Accretion Disks with Advection
Creators: name: Wu, Xue-Bing
name: Li, Qi-Bin
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The local stability of accretion disks with advection is studied together with the considerations of radial viscous force and thermal diffusion. For a geometrically thin, radiative cooling dominated disk, the thermal diffusion has nearly no effects on the thermal and viscous modes. The including of thermal diffusion, however, tends to stabilize the acoustic modes which, if without advection, are unstable if the disk is optically thick, radiation pressure dominated or optically thin, and are stable if the disk is optically thick, gas pressure dominated. The including of very little advection has significant effects on two acoustic modes. Independent on the optical depth, the instability of the outward propagating mode (O-mode) is enhanced and that of the inward propagating mode (I-mode) is damped if the disk is gas pressure dominated, while the instability of O-mode is damped and that of I-mode is enhanced if the disk is radiation pressure dominated. For a geometrically slim, advection-dominated disk, both the thermal and viscous modes, as well as I-mode, are always stable if the disk is optically thin. The including of thermal diffusion tends to make these modes more stable. However, the O-mode can become unstable when $q/m$ is very large ($q$ is the ratio of advective to viscous dissipated energy and $m$ the Mach number), even if the thermal diffusion is considered. On the other hand, if the advection-dominated disk is optically thick, we found there is no self-consistent acoustic modes in our local analyses. The thermal diffusion has no effect on the stable viscous mode but has a significant contribution to enhance the thermal instability.
description: 19 pages, LaTeX file. 12 figures are available upon a request to wuxb@yac.bao.ac.cn. Submitted to ApJ
Effect of strong disturbances on the evolution of turbulent boundary layers
Creators: name: Rodriguez Lopez, Eduardo
Publisher: name: Imperial College London
Year: 2017

description: This thesis describes an experimental investigation into the evolution of artificially generated high Reynolds number turbulent boundary layers (TBL). Due to its large importance on TBL scaling, skin friction has to be accurately determined. With this purpose, a robust post-processing method is developed to extract the mean skin friction and the wall-probe relative position from the mean velocity profile with uncertainties better than 1% and 0.5 wall units respectively. For disrupted TBLs, it is shown that, after a certain disturbance, TBLs evolve towards a canonical state after an adaptation region whose turbulent properties and length are strongly dependent on the trips' geometry. Two distinct mechanisms (so called wall-driven and wake-driven) are identified and associated with shorter and longer adaptation regions respectively. The latter is generated by disruptions exhibiting strong flow recirculation which enhances the influence of the obstacle's wake on the near-wall region and compromises the TBL properties in the adaptation region. Contrastingly, trips generating a wall-driven mechanism prevent this interaction from happening thus enabling a distinction between the trips' wakes and the near-wall region. Particle image velocimetry and low-order modelling of the flow in the close vicinity of the obstacles enable us to establish a three-way link between the main geometrical features of the trips, the length of the adaptation region and its turbulent properties. Low-porosity wall-mounted single- and multi-scale fences are designed and tested to control the degree of interaction between their wake and the near-wall region. Turbulent properties in the near-wall region are shown to scale with the local thickness of that internal layer rather than with the thickness of the whole fence's wake. Further, an aero-acoustic characterization of the flow is conducted showing the spatial distribution and the velocity scalability of the noise sources. Finally, some topics for further work are proposed.
Agenda 2030 para o desenvolvimento sustentável: uma leitura de política pública na clave da biblioteca escolar
Creators: name: Filho, Claudio Marcondes De Castro
Publisher: name: figshare
Year: 2018
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies

description: Este artigo apresenta os 17 ODS (Objetivos de Desenvolvimento Sustentável), programa da Organização da Nações Unidas que visa transformar o mundo. Essa apresentação é interpretada à luz dos parâmetros da biblioteca escolar. A articulação entre o desenvolvimento sustentável e os objetivos da biblioteca escolar permite situar as contribuições no âmbito mais amplo de uma política pública para a educação. Essa articulação gerou alguns pressupostos como: possibilitar o aumento do índice de leitura; a biblioteca escolar deve fazer parte do movimento social que busca efetivar as políticas públicas educacionais e culturais; fornecer instrumental necessário para a formação, o desenvolvimento e o aprimoramento das competências do aluno; abrir um espaço de criação e de compartilhamento de experiências. Como conclusão, entendemos que a existência da biblioteca escolar pode contribuir para propor soluções para os objetivos do desenvolvimento sustentável.
On the Extreme Ultraviolet Emission from Galaxy Clusters
Creators: name: Arabadjis, John S.
name: Bregman, Joel N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An extremely soft X-ray excess throughout galaxy clusters has been claimed as a new feature of these sytems, with important physical implications. We have reexamined this feature in the five clusters for which it has been discussed, using the most recent X-ray absorption cross sections, X-ray data processing techniques, and a consistent set of HI data. For the Virgocluster, we find that the spectrum can be fit with a single-temperature thermal plasma and with an X-ray absorption column that is not significantly different than the Galactic HI column. The result for Abell 1367, Abell 1656 (Coma), Abell 1795, and Abell 2199 is similar in that the difference betweenthe X-ray absorption column and the Galactic HI column is less than 3-sigma for He/H = 0.09, and for He/H = 0.10 only one cluster location leads to a Galactic HI column more than 3-sigma above the X-ray absorption column (Coma, with one location with a 3.6-sigma difference). We conclude that there is no strong evidence for the extremely soft X-ray excess in galaxy clusters.
description: 10 pages of figures, 1 LaTeX manuscript
Fermionic vs. bosonic two-site Hubbard models with a pair of interacting cold atoms
Creators: name: Mal, Subhanka
name: Adhikary, Kingshuk
name: Deb, Bimalendu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In a recent work, Murmann {\it et. al.} [Phys. Rev. Lett. {\bf114}, 080402 (2015)] have experimentally prepared and manipulated a double-well optical potential containing a pair of Fermi atoms as a possible building block of Hubbard model. Here, we carry out a detailed theoretical study on the properties of both fermionic and bosonic two-site Hubbard models with a pair of interacting atoms in a trap with a double-well structure along z-axis and a 2D harmonic confinement along the transverse directions. We consider fermions as of two-component type and bosons as of spinless as well as of two spin components. We first discuss building up the Hubbard models using the model finite-range interaction potentials of Jost and Kohn. In general, a finite range of interaction leads to on-site, inter-site, exchange and partial-exchange terms. We show that, given the same input parameters for both bosonic and fermionic two-site Hubbard models, many of the statistical properties such as the single- and double-occupancy of a site, and the probabilities for the single-particle and pair tunneling are similar in both fermionic and bosonic cases. But, quantum entanglement and quantum fluctuations are found to be markedly different for the two cases. We discuss atom-atom entanglement in two spatial modes corresponding to the two sites of the double-well. Our results show that the entanglement of a pair of spin-half fermions is always greater than that of spinless bosons; and when the fermions are maximally entangled the fluctuation in the two-mode phase difference is largely squeezed. In contrast, spinless bosons never exhibit phase squeezing, but shows squeezing in two-mode population imbalance depending on the system parameters.
description: 18 pages, 10 figures Revised following Referee's comments, new results about entanglement and fluctuations are added
Instrumentos de orientação nutricional para crianças na primeira infância: protocolo de revisão de escopo
Creators: name: De Lima, Eliane Almeida
name: Da Silva, Juliana Rodrigues
name: Thereza Maria Magalhães Moreira
name: Melo, Marília Fontenele Albuquerque
Publisher: name: OSF
Year: 2023

description: Trata-se de um protocolo de revisão de escopo, que será conduzido com base no manual JBI
Magneto-optical trapping of a heavy polyatomic molecule for precision measurement
Creators: name: Lasner, Zack D.
name: Frenett, Alexander
name: Sawaoka, Hiromitsu
name: Anderegg, Loic
name: Augenbraun, Benjamin
name: Lampson, Hana
name: Li, Mingda
name: Lunstad, Annika
name: Mango, Jack
name: Nasir, Abdullah
name: Ono, Tasuku
name: Sakamoto, Takashi
name: Doyle, John M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report a magneto-optical trap of strontium monohydroxide (SrOH) containing 2000(600) molecules at a temperature of 1.2(3) mK. The lifetime is 91(9) ms, which is limited by decay to optically unaddressed vibrational states. This provides the foundation for future sub-Doppler cooling and optical trapping of SrOH, a polyatomic molecule suited for precision searches for physics beyond the Standard Model including new CP violating particles and ultralight dark matter. We also identify important features in this system that guide cooling and trapping of complex and heavy polyatomic molecules into the ultracold regime.
title: ADCO, Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Cart. 143 (7 H 7), 153 fol, f. 0015r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0015r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0015r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb137389344
description: Provenance: abbaye de Molesme
description: Provenance: http://www.wikidata.org/entity/Q334044
Alca arctica Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Charadriiformes
Alcidae
Alca
Alca arctica

description: Alca arctica [spec. nov.]
A. rostro compresso-ancipiti sulcato sulcis quatuor, oculorum orbita temporibusque albis. Fn. svec. 118.
Anas arctica. Clus. exot. 104. Raj. av. 120. Worm. mus. 302. Olear. mus. t. 15. f. 5. Will. orn. 244. t. 65. Raj. av. 120. Alb. av. 2. p. 73. t. 78. 79.
Lunda. Gesn. av. 725. Oelig. mus. 2. s. 11. t. 11. f. 21.
Habitat in Europae borealis oceano.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 130, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
The $Λ_b \to Λ (\to p π^-)μ^+μ^-$ decay in the $\text{RS}_{c}$ model
Creators: name: Nasrullah, Aqsa
name: Bhutta, Faisal Munir
name: Aslam, M. Jamil
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the four body decay $Λ_b \rightarrow Λ( \rightarrow p π^-) μ^{+} μ^{-}$ in the Randall-Sundrum model with custodial protection $(\text{RS}_c)$. By considering the constraints coming from the direct searches of the lightest Kaluza-Klein (KK) excitation of the gluon, electroweak precision tests, the measurements of the Higgs signal strengths at the LHC and from $ΔF=2$ flavor observables, we perform a scan of the parameter space of the $\text{RS}_c$ model and obtain the maximum allowed deviations of the Wilson coefficients $ΔC^{(\prime)}_{7,\; 9,\; 10}$ for different values of the lightest KK gluon mass $M_{g^{(1)}}$. Later, their implications on the observables such as differential branching fraction, longitudinal polarization of the daughter baryon $Λ$, forward-backward asymmetry with respect to leptonic, hadronic and combined lepton-hadron angles are discussed where we present the analysis of these observables in different bins of di-muon invariant mass squared $s\;(= q^2)$. It is observed that with the current constraints the Wilson coefficients in $\text{RS}_c$ model show slight deviations from their Standard Model values and hence can not accommodate the discrepancies between the Standard Model calculations of various observables and the LHCb measurements in $Λ_b$ decays.
description: 22 pages, 2 figures, references added, minor changes, matches published version
title: ADCO, Ordre cistercien : comptes (1499-1515) (11 H 1162), f. 00253
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi

description: Ordre cistercien : comptes (1499-1515), Archives départementales de la Côte-d'Or, (11 H 1162). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Ordre cistercien : comptes (1499-1515), Archives départementales de la Côte-d'Or, (11 H 1162), f. 00253, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: abbaye de Cîteaux
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v