cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Microlensing and the Stellar Mass Function
Creators: name: Gould, Andrew
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Traditional approaches to measuring the stellar mass function (MF) are fundamentally limited because objects are detected based on their luminosity, not their mass. These methods are thereby restricted to luminous and relatively nearby stellar populations. Gravitational microlensing promises to revolutionize our understanding of the MF. It is already technologically feasible to measure the MFs of the Galactic disk and Galactic bulge as functions of position, although the actual execution of this program requires aggressive ground-based observations including infrared interferometry, as well as the launching of a small satellite telescope. Rapid developments in microlensing, including the new technique of ``pixel lensing'' of unresolved stars, will allow one to probe the MF and luminosity function of nearby galaxies. Such observations of M31 are already underway, and pixel-lensing observations of M87 with the {\it Hubble Space Telescope} would permit detection of dark intra-cluster objects in Virgo. Microlensing techniques can also be applied to investigate the star-formation history of the universe and to search for planets with masses as small as the Earth's. Based on an invited talk at the January 1996 AAS meeting in San Antonio. PASP (June 1996) in press, (c) ASP, reproduced with permission.
description: 31 pages with 7 embedded figures. PASP (June 1996) in press, (c) ASP, reproduced with permission
Ipomoea quinquefolia Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Solanales
Convolvulaceae
Ipomoea
Ipomoea quinquefolia

description: Ipomoea quinquefolia, spec. nov.
17. Ipomoea foliis digitatis glabris: foliolis sessilibus, caule laevi.
 Convolvulus foliis digitatis glabris, caule laevi. Roy. lugdb. 429.
 Convolvulus quinquefolius glaber americanus. Pluk. alm. 116. t.167. f.6.
 Habitat in America .
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 162, DOI: 10.5281/zenodo.3931989
Globular cluster population of the HST frontier fields galaxy J07173724+3744224
Creators: name: Carlson, Nathan L.
name: Sultanova, Madina R.
name: Vithanage, Sandanuwan P. Kalawila
name: Barkhouse, Wayne A.
name: Gamage, Gihan L. Ipita Kaduwa
name: Rude, Cody M.
name: Lopez-Cruz, Omar
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first measurement of the globular cluster population surrounding the elliptical galaxy J07173724+3744224 (z=0.1546). This galaxy is located in the foreground in the field-of-view of the Hubble Space Telescope (HST) Frontier Fields observations of galaxy cluster MACS J0717.5+3745 (z=0.5458). Based on deep HST ACS F435W, F606W, and F814W images, we find a total globular cluster population of N_tot = 3441 +/- 1416. Applying the appropriate extinction correction and filter transformation from ACS F814W to the Johnson V-band, we determine that the host galaxy has an absolute magnitude of M_V = -22.2. The specific frequency was found to be S_N = 4.5 +/- 1.8. The radial profile of the globular cluster system was best fit using a powerlaw of the form $σ\sim R^{-0.6}$, with the globular cluster population found to be more extended than the halo light of the host galaxy ($σ_{halo}\sim R^{-1.7}$). The F435W-F814W colour distribution suggests a bimodal population, with red globular clusters 1-3x more abundant than blue clusters. These results are consistent with the host elliptical galaxy J07173724+3744224 having formed its red metal-rich GCs in situ, with the blue metal-poor globular clusters accreted from low-mass galaxies.
description: 21 pages, 14 figures, 2 tables, revised following peer-review, accepted for publication in MNRAS
Independence in generic incidence structures
Creators: name: Conant, Gabriel
name: Kruckman, Alex
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic (math.LO)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We study the theory $T_{m,n}$ of existentially closed incidence structures omitting the complete incidence structure $K_{m,n}$, which can also be viewed as existentially closed $K_{m,n}$-free bipartite graphs. In the case $m = n = 2$, this is the theory of existentially closed projective planes. We give an $\forall\exists$-axiomatization of $T_{m,n}$, show that $T_{m,n}$ does not have a countable saturated model when $m,n\geq 2$, and show that the existence of a prime model for $T_{2,2}$ is equivalent to a longstanding open question about finite projective planes. Finally, we analyze model theoretic notions of complexity for $T_{m,n}$. We show that $T_{m,n}$ is NSOP$_1$, but not simple when $m,n\geq 2$, and we show that $T_{m,n}$ has weak elimination of imaginaries but not full elimination of imaginaries. These results rely on combinatorial characterizations of various notions of independence, including algebraic independence, Kim independence, and forking independence.
Azimuthal Distribution of Quark-Antiquark Jets in DIS Diffractive Dissociation
Creators: name: Bartels, J.
name: Ewerz, C.
name: Lotter, H.
name: Wuesthoff, M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the azimuthal distribution of quark-antiquark jets in DIS diffractive dissociation with large transverse momentum. In this kinematical region the matrix element is expressed in terms of the gluon structure function. For the transverse part of the cross section we find a $\cos(2 ϕ)$-distribution with the maximum at $ϕ= \pm π/2$, i.e.\ the jets prefer a direction perpendicular to the electron plane. This is in contrast to boson gluon fusion where the $q\bar{q}$ jet cross section for transversely polarized bosons peaks at $ϕ=0$ and $ϕ=π$. We discuss the origin of this striking difference and present numerical results relevant for the diffractive dissociation at HERA.
description: 12 pages, latex, 7 figures
Binary--single-star scattering VI. Automatic Determination of Interaction Cross Sections
Creators: name: McMillan, Stephen L. W.
name: Hut, Piet
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Scattering encounters between binaries and single stars play a central role in determining the dynamical evolution of a star cluster. In addition, three-body scattering can give rise to many interesting exceptional objects: merging can produce blue stragglers; exchange can produce binaries containing millisecond pulsars in environments quite different from those in which the pulsars were spun up; various types of X-ray binaries can be formed, and their activity can be either shut off or triggered as a result of triple interactions. To date, all published results on three-body scattering have relied on human guidance for determining the correct parameter range for the envelope within which to perform Monte--Carlo scattering experiments. In this paper, we describe the first fully automatic determination of cross sections and reaction rates for binary--single-star scattering. Rather than relying on human inspection of pilot calculations, we have constructed a feedback system that ensures near-optimal coverage of parameter space while guaranteeing completeness. We illustrate our approach with a particular example, in which we describe the results of a three-body encounter between three main-sequence stars of different masses. We provide total cross sections, as well as branching ratios for the various different types of two-body mergers, three-body mergers, and exchanges, both non-resonant and resonant. The companion paper in this series, Paper VII, provides a full survey of unequal-mass three-body scattering for hard binaries in the point-mass limit.
description: 20 pages, TeX + 5 ps-figures, to appear in ApJ
Catálogo de las especies españolas de flora incluidas en los apéndices CITES
Creators: name: Burgarella, Concetta
Publisher: name: figshare
Year: 2018
Subjects: Botany

description: Tésis presentada para el "II Máster sobre Gestión, Conservación y Control de Especies Sometidas a Comercio Internacional" de la Universidad Internacional de Andalucía (Baeza) en el año 2001.
Link invariants derived from multiplexing of crossings
Creators: name: Miyazawa, Haruko A.
name: Wada, Kodai
name: Yasuhara, Akira
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We introduce the multiplexing of a crossing, replacing a classical crossing of a virtual link diagram with multiple crossings which is a mixture of classical and virtual. For integers $m_{i}$ $(i=1,\ldots,n)$ and an ordered $n$-component virtual link diagram $D$, a new virtual link diagram $D(m_{1},\ldots,m_{n})$ is obtained from $D$ by the multiplexing of all crossings. For welded isotopic virtual link diagrams $D$ and $D'$, $D(m_{1},\ldots,m_{n})$ and $D'(m_{1},\ldots,m_{n})$ are welded isotopic. From the point of view of classical link theory, it seems very interesting that $D(m_{1},\ldots,m_{n})$ could not be welded isotopic to a classical link diagram even if $D$ is a classical one, and new classical link invariants are expected from known welded link invariants via the multiplexing of crossings.
description: 9 pages, 16 figures
Emotionen beim Reflektieren in der Lehrkräftebildung
Creators: name: Kubsch, Marcus
name: Sorge, Stefan
name: Wulff, Peter
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Reflexion
subject: Lehrkräftebildung
subject: Emotionen
subject: 500 Naturwissenschaften und Mathematik::500 Naturwissenschaften::507 Ausbildung, Forschung, verwandte Themen

description: Eine beständige Weiterentwicklung der eigenen pädagogischen und fachdidaktischen Praxis stellt ein zentrales Leitbild für die Arbeit von Lehrkräften dar. Damit dieses Leitbild umgesetzt werden kann, wird angenommen, dass Lehrkräfte ihre eigene Praxis kontinuierlich reflektieren müssen. Reflektieren angehende Lehrkräfte im Kontext von Lehrveranstaltungen, hat dies einerseits Elemente einer Prüfungssituation und andererseits Elemente einer Erkenntnisgewinnungssituation. Für beide Situationen spielen Emotionen eine wichtige Rolle. So können sich beispielsweise negative und deaktivierende Emotionen hinderlich auf den (Lern-)Erfolg auswirken. Allerdings ist bislang wenig darüber bekannt, welche Emotionen beim Reflektieren von videobasierten Fallanalysen auftreten und inwieweit individualisiertes Feedback hier eine Rolle spielt. Es wird daher eine Untersuchung zu den Emotionen von N = 15 Lehramtsstudierenden der Physik zu mehreren Reflexionsanlässen vorgestellt. Hierbei wurde über verschiedene Reflexionsanlässe hinweg Feedback gegeben. Diskutiert werden Implikationen für die Gestaltung von Reflexionsanlässen in der Lehrkräftebildung sowie Perspektiven für zukünftige Forschung.
Gluon Regge Trajectory in the two-loop Approximation
Creators: name: Fadin, V. S.
name: Fiore, R.
name: Kotsky, M. I.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Evaluating two-loop integrals in the transverse momentum space we obtain the trajectory of the Reggeized gluon in QCD in an explicit form in the two-loop approximation. It is presented as an expansion in powers of $(D-4)$ for the space-time dimension $D$ tending to the physical value $D=4$. As the result of a remarkable cancellation the third order pole in$D-4$ disappears in the trajectory and the expansion starts with $(D-4)^{-2}$.
description: 13 pages, Latex
Constructing Datasets for Multi-hop Reading Comprehension Across Documents
Creators: name: Welbl, Johannes
name: Stenetorp, Pontus
name: Riedel, Sebastian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Most Reading Comprehension methods limit themselves to queries which can be answered using a single sentence, paragraph, or document. Enabling models to combine disjoint pieces of textual evidence would extend the scope of machine comprehension methods, but currently there exist no resources to train and test this capability. We propose a novel task to encourage the development of models for text understanding across multiple documents and to investigate the limits of existing methods. In our task, a model learns to seek and combine evidence - effectively performing multi-hop (alias multi-step) inference. We devise a methodology to produce datasets for this task, given a collection of query-answer pairs and thematically linked documents. Two datasets from different domains are induced, and we identify potential pitfalls and devise circumvention strategies. We evaluate two previously proposed competitive models and find that one can integrate information across documents. However, both models struggle to select relevant information, as providing documents guaranteed to be relevant greatly improves their performance. While the models outperform several strong baselines, their best accuracy reaches 42.9% compared to human performance at 74.0% - leaving ample room for improvement.
description: This paper directly corresponds to the TACL version (https://transacl.org/ojs/index.php/tacl/article/view/1325) apart from minor changes in wording, additional footnotes, and appendices
Beam Dynamics Analysis of Dielectric Laser Acceleration using a Fast 6D Tracking Scheme
Creators: name: Niedermayer, Uwe
name: Egenolf, Thilo
name: Boine-Frankenheim, Oliver
Publisher: name: arXiv
Year: 2017
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: A six-dimensional symplectic tracking approach exploiting the periodicity properties of Dielectric Laser Acceleration (DLA) gratings is presented. The longitudinal kick is obtained from the spatial Fourier harmonics of the laser field within the structure, and the transverse kicks are obtained using the Panofsky-Wenzel theorem. Additionally to the usual, strictly longitudinally periodic gratings, our approach is also applicable to periodicity chirped (sub-relativistic) and tilted (deflection) gratings. In the limit of small kicks and short periods we obtain the 6D Hamiltonian, which allows, for example, to obtain matched beam distributions in DLAs. The scheme is applied to beam and grating parameters similar to recently performed experiments. The paper concludes with an outlook to laser based focusing schemes, which are promising to overcome fundamental interaction length limitations, in order to build an entire microchip-sized laser driven accelerator.
title: Bias, bias everywhere
title: A response to Li et al. and Zhai and Nehm
titleType: Subtitle
Creators: name: Krist, Christina
name: Kubsch, Marcus
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: bias
subject: machine learning
subject: AI
subject: 500 Naturwissenschaften und Mathematik::500 Naturwissenschaften::507 Ausbildung, Forschung, verwandte Themen

description: In response to Li et al.'s (2023) and Zhai and Nehm's (2023) commentaries on Zhai et al.'s 2022 paper, Applying Machine Learning to Automatically Assess Scientific Models, we offer the perspective that these commentaries are talking past each other around several key issues related to artificial intelligence (AI) in science education assessment. In part, this “talking past” stems from the fact that each set of authors is approaching the conversation from a distinct perspective: Li et al. address AI through a sociopolitical lens, while Zhai and Nehm address it from a technical lens. These perspectives are not explicitly recognized by either set of authors; and as a result, while they use common terminology, there is a mismatch of (unarticulated) definitions between these two commentaries. Specifically for this commentary, we will focus on the conflation of multiple definitions of bias, which we also find to be a common conflation across the field. We ultimately view this mismatch as a missed opportunity and a barrier to generative ethical conversations about the role of AI in education. We emphasize here how and why both perspectives are valuable, and argue that they are most valuable when in critical but productive conversation with each other.
Binary--single-star scattering VII. Hard Binary Exchange Cross Sections for Arbitrary Mass Ratios: Numerical Results and Semi-Analytic Fits
Creators: name: Heggie, D. C.
name: Hut, P.
name: McMillan, S. L. W.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first comprehensive fitting formula for exchange reactions of arbitrary mass ratios. In a comparison with numerical results, this expression is shown to be accurate in the hard binary limit to within 25\% for most mass ratios. The result will be useful in forming quantitative estimates for the branching ratios of various exchange reactions in astrophysical applications. For example, it can be used to construct quantitative formation scenarios for unusual objects in globular clusters, such as binaries containing a pulsar.
description: 25 pages, TeX + 2 ps-figures, to appear in ApJ
Spectra and spectral correlations of microwave graphs with symplectic symmetry
Creators: name: Rehemanjiang, A.
name: Richter, M.
name: Kuhl, U.
name: Stöckmann, H. -J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Following an idea by Joyner et al. [EPL, 107 (2014) 50004] a microwave graph with antiunitary symmetry T obeying T^2=-1 has been realized. The Kramers doublets expected for such systems have been clearly identified and could be lifted by a perturbation which breaks the antiunitary symmetry. The observed spectral level spacings distribution of the Kramers doublets is in agreement with the predictions from the Gaussian symplectic ensemble (GSE), expected for chaotic systems with such a symmetry. In addition results on the two-point correlation function, the spectral form factor, the number variance and the spectral rigidity are presented, as well as on the transition from GSE to GOE statistics by continuously changing T from T^2=-1 to T^2=1.
description: 14 pages, 12 figures
Polemonium caeruleum Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Polemoniaceae
Polemonium
Polemonium caeruleum

description: Polemonium caeruleum, spec. nov.
1. Polemonium calycibus corollae tubo longioribus.
 Polemonium. Fl. lapp. 86. Fl. suec. 175. Hort. cliff. 163. Roy. lugdb. 432. Hall. helv. 490.
 Valeriana caerulea. Bauh. pin. 164.
 α. Polemonium calycibus lanatis. Hort. ups.40.
 γ. Polemonium foliis pinnatis, radicibus reptatricibus. Gron. virg.22.
 Habitat in Europae , Asiae , Americae septentrionalibus. ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 162, DOI: 10.5281/zenodo.3931989
A needs-based framework for approximating decisions and well-being
Creators: name: Krecik, Markus
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: preferences
subject: basic needs
subject: decision-making
subject: behavioral economics
subject: welfare economics
subject: 300 Sozialwissenschaften::330 Wirtschaft::338 Produktion

description: Behavioral economics has so far largely avoided discussing the psychological origins of preferences, as well as their relation to needs. This has not only restricted interdisciplinary exchange, but also significantly limits the predictive capabilities of models. For example, the revealed preference approach can only reliably predict repeating choices, while needing large amounts of observations for calibration. In this paper, I show how unifying preferences with the psychological concept of needs strengthens economic models, by developing a decision-making framework for well-being assessment and choice prediction. To present the direct merit of this approach, I show how this framework yields a systematic approximation scheme, which is able to solve limitations of current approaches by describing new alternatives, non-repeating choices, or otherwise unobservable desires. Meanwhile, the approximation scheme requires less observations on an individual level than current approaches. I achieve this by constructing a hierarchical dependency between human motivations and preferences through the language of needs. I show the basic feasibility of the approximation scheme through simulations on random populations. In practice, the framework is applicable in situations where individuals exert choices only once and measuring preferences is expensive, like evaluating policy proposals or predicting decisions under technological change
Heavy-quark correlations in deep inelastic scattering
Creators: name: Smith, J.
name: Harris, B. W.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss results for heavy quark correlations in next-to-leading order QCD in deep inelastic electroproduction.
description: Talk presented by J. Smith. To appear in proceedings of "QCD and QED in Higher Orders" 1996 Zuethen Workshop on Elementary Particle Theory, April 22-26, 1996. Latex, 5 figures, uses espcrc2.sty (included)
Polemonium rubrum Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Polemoniaceae
Polemonium
Polemonium rubrum

description: Polemonium rubrum, spec. nov.
2. Polemonium calycibus tubo corollae brevioribus.
 Quamoclit pinnatum erectum, floribus in thyrsum digestis. Dill. elth. 321. t.241. f.312.
 Habitat in Carolinae citerioris arenosis. B. Jussieu.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 163, DOI: 10.5281/zenodo.3931989
Two diverging length scales in the structure of jammed packings
Creators: name: Hexner, Daniel
name: Liu, Andrea J.
name: Nagel, Sidney R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: At densities higher than the jamming transition for athermal, frictionless repulsive spheres we find two distinct length scales, both of which diverge as a power law as the transition is approached. The first, $ξ_{Z}$, is associated with the two-point correlation function for the number of contacts on two particles as a function of the particle separation. The second, $ξ_{f}$, is associated with contact-number fluctuations in subsystems of different sizes. On scales below $ξ_{f}$ the fluctuations are highly suppressed, similar to the phenomenon of hyperuniformity usually associated with density fluctuations. The exponents for the divergence of $ξ_{Z}$ and $ξ_{f}$ are different and appear to be different in two and three dimensions.
Polemonium dubium Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Polemoniaceae
Polemonium
Polemonium dubium

description: Polemonium dubium, spec. nov.
 3. Polemonium foliis inferioribus hastatis, superioribus lanceolatis. Gron. virg. 142.
 Habitat in Virginia .
 Facies aliena a Polemoniis, genus mihi dubium.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 163, DOI: 10.5281/zenodo.3931989
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Cart. 189 (11 H 74), 316 folios, f. 0087v
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/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Archives départementales de la Côte-d'Or, Cart. 189 (11 H 74), 316 folios, f. 0087v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Archives départementales de la Côte-d'Or, Cart. 189 (11 H 74), 316 folios, f. 0087v, 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: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
Towards multiscale modelling of CO2 corrosion
Creators: name: Rafols I Belles, Carles
Publisher: name: Imperial College London
Year: 2022

description: CO2 corrosion is a serious environmental and financial concern for the oil and gas industry requiring the continuous development of cost-effective corrosion prevention and mitigation strategies. Over the last decades, the FeCO3 scale that forms during the CO2 corrosion process has gained much interest as it can prevent further corrosion once fully formed. However, fundamental research on CO2 corrosion and the formation of these corrosion scales is still lacking due to the complexity of these electrochemical systems. Density Functional Theory calculations can be instrumental in supporting and interpreting experimental results. In this work, the results of DFT PDOS calculations of oxygen adsorbed on an Fe(110) surface revealed a hybridised orbital around the Fermi level that explains the origin of the asymmetricoxygen peak in the XPS spectrum. Other more traditional electrochemical models have been developed over the years to improve our understanding and forecasting capabilities of CO2 corrosion, however these models are unable to capture the stochastic nature of the corrosion process which is key to describe stochastic phenomena such as localised corrosion and the formation of the corrosion scale. This work presents the Semi-local Corrosion Approximation, a novel modelling technique that combines a general corrosion electrochemical model with elements of cellular automaton stochastic models to simulate the corrosion process using a 3-dimensional description of the corrosion system. The model predicts the evolution of the physical properties of the corrosion scale which are found to play an important role in the protection of the steel surface. The 3-dimensional analysis of the corrosion scale shows that scales formed under a high precipitation rate may develop localised corrosion as the FeCO3 supersaturation is consumed before the scale fully covers the steel surface.
Reseña del libro SACRIFICIOS HUMANOS, CANIBALISMO Y SEXUALIDAD RITUAL EN EL MUNDO ANTIGUO, de Eliseo Ferrer.
Creators: name: Ferrer, Eliseo
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 440107
subject: Social and cultural anthropology
classificationCode: 440199
subject: Anthropology not elsewhere classified
classificationCode: 310999
subject: Zoology not elsewhere classified

description: Según Jorge Liberati (autor de la reseña), la obra se consagra como construcción del todo original, materialista en el sentido de un materialismo no visiblemente histórico ni estrictamente dialéctico. Una visión independiente y objetiva, aunque apasionada, seriamente documentada de acuerdo a una estructura temática convincente y cuyo poder de persuasión no abriga el propósito de contravenir los principios fundamentales de la tradición teológica, sino el de investigar sus antecedentes y demostrar sus ancestrales correlaciones desde siempre ignoradas o desde siempre solapadas.(…)En su nuevo libro, Eliseo Ferrer empieza por estipular que “las bases de toda construcción sagrada, religiosa, mistérica, espiritual y trascendente, en suma, como queramos llamar a este conjunto de fenómenos de indudable realidad ontológica y carácter objetivo, encuentra su fundamento y su núcleo originario en las condiciones materiales del hombre de las cavernas, dentro de un contexto eminentemente zoológico. Desvela su primigenia razón de ser en la lucha con el medio circundante, en el trabajo con las manos, en la creación de las primeras instituciones culturales y en las distintas técnicas de supervivencia: desde la caza con flechas de puntas de sílex a los primeros rudimentos agrícolas o a las primeras nociones de construcción de espacios cerrados y protegidos de las amenazas exteriores.”(…)El materialismo filosófico del español Gustavo Bueno respalda algunas de las más importantes afirmaciones de su compatriota, Eliseo Ferrer.
Campanula uniflora Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Campanulaceae
Campanula
Campanula uniflora

description: Campanula uniflora, spec. nov.
 1. Campanula caule unifloro. Fl. lapp. 85. t.9. f.5. 6. Fl. suec. 177.
 Habitat in alpibus Lapponicis . ☉
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 163, DOI: 10.5281/zenodo.3931989
On the structure and applications of the Bondi-Metzner-Sachs group
Creators: name: Alessio, Francesco
name: Esposito, Giampiero
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This work is a pedagogical review dedicated to a modern description of the Bondi-Metzner-Sachs group. The curved space-times that will be taken into account are the ones that suitably approach, at infinity, Minkowski space-time. In particular we will focus on asymptotically flat space-times. In this work the concept of asymptotic symmetry group of those space-times will be studied. In the first two sections we derive the asymptotic group following the classical approach which was basically developed by Bondi, van den Burg, Metzner and Sachs. This is essentially the group of transformations between coordinate systems of a certain type in asymptotically flat space-times. In the third section the conformal method and the notion of asymptotic simplicity are introduced, following mainly the works of Penrose. This section prepares us for another derivation of the Bondi-Metzner-Sachs group which will involve the conformal structure, and is thus more geometrical and fundamental. In the subsequent sections we discuss the properties of the Bondi-Metzner-Sachs group, e.g. its algebra and the possibility to obtain as its subgroup the Poincaré group, as we may expect. The paper ends with a review of the Bondi-Metzner-Sachs invariance properties of classical gravitational scattering discovered by Strominger, that are finding application to black hole physics and quantum gravity in the literature.
description: 62 pages, 9 figures. Misprints have been amended and two important references have been added
title: Preference dynamics
title: a procedurally rational model of time and effort allocation
titleType: Subtitle
Creators: name: Krecik, Markus
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: preferences
subject: decision-making
subject: behavioral economics
subject: procedural rationality
subject: household economics
subject: 300 Sozialwissenschaften::330 Wirtschaft::338 Produktion

description: Current time allocation and household production models face three major weaknesses: First, they only describe the average time allocation. Thus, information about the order of activities is lost. Therefore, it is impossible to describe the influence of activities on later ones. Such interactions are likely pervasive, and can significantly alter behavior. Second, they are unable to describe the effort allocation of individuals, although effort influences one’s time allocation. Thereby, they are either unable or very limited in describing labor productivity or multitasking although individuals frequently multitask. Through the omission of interactions and effort allocation, current models yield biased descriptions of e.g. price and time elasticities. Third, they require strong assumptions, such as perfect foresight or periodic environments, and thus cannot describe behavior in unpredictable environments, like reactions to external shocks. In this paper, I provide a remedy for these shortcomings by developing a dynamical model of procedurally rational decision making. The basic idea of the model is a feedback loop between experienced utility, decision utility, and activities. In applications of the model, I show how introducing a work-leisure interaction and multitasking significantly changes elasticities and how nonmarginal external shocks cause short-term demand surges, none of which can be described by current time allocation models.
Nuclear spin dependence of time reversal invariance violating effects in neutron scattering
Creators: name: Gudkov, Vladimir
name: Shimizu, Hirohiko M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The spin structure of parity violating and time reversal invariance violating effects in neutron scattering is discussed. The explicit relations between these effects are presented in terms of functions nuclear spins and neutron partial widths of p-wave resonances.
description: Version accepted for PRC
Globular Clusters in the Inner Regions of NGC5128 (Cen A)
Creators: name: Minniti, D.
name: Alonso, M. V.
name: Goudfrooij, P.
name: Jablonka, P.
name: Meylan, G.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have identified 26 new globular cluster candidates in the inner 3 kpc of NGC 5128 (Cen A), the nearest known large galaxy being the probable product of a merger. The clusters are selected on the basis of their structural parameters (observed core diameters and ellipticities), as measured from archival WFPC HST images. IR photometry obtained with IRAC2B at the ESO/MPI 2.2-m telescope is combined with the optical HST photometry. Most of these clusters have normal colors typical of old globular clusters like those found in the Milky Way and M31. We estimate their metal abundances based on the R-K_0 color, confirming the existence of a metallicity gradient in the inner regions of NGC 5128. The presence of metal-rich globular clusters suggests that one of the colliding galaxies was a bulge-dominated galaxy (E or early S). A few clusters have colors and magnitudes similar to intermediate-age clusters containing carbon stars in the Magellanic Clouds. If the intermediate-age clusters were formed during a merger, then this episode must have occurred a few Gyr ago. Alternatively, we are looking at the cluster members of one of the colliding galaxies, which would then have been a late-type disk galaxy.
description: 14 pages, gzipped, uuencoded. Includes 1 table and 7 figures. Ap.J. in press
Leptophobic $Z'$ in stringy flipped SU(5)
Creators: name: Lopez, J.
name: Nanopoulos, D.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that leptophobic $Z'$ gauge bosons occur naturally in flipped SU(5) and may shift $R_b$ in an interesting way without upsetting the good values of $Γ_{had}$ and $R_c$. Within a string-derived version of the model, we study three possible scenarios and the constraints imposed on model building that would allow the new symmetry to remain unbroken down to low energies. Such $Z'$ gauge boson has generation non-universal couplings to quarks that violate parity maximally in the up-quark sector, and may contribute significantly to spin asymmetries in polarized $pp$ scattering experiments now being prepared for RHIC.
description: 22 pages, LaTeX, 3 figures (included). Final version to appear in Phys. Rev. D. Includes discussion on how to avoid potential FCNC problems and updated data on R_b and R_c
Low-Energy Deep Belief Networks using Intrinsic Sigmoidal Spintronic-based Probabilistic Neurons
Creators: name: Zand, Ramtin
name: Camsari, Kerem Yunus
name: Pyle, Steven D.
name: Ahmed, Ibrahim
name: Kim, Chris H.
name: DeMara, Ronald F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: A low-energy hardware implementation of deep belief network (DBN) architecture is developed using near-zero energy barrier probabilistic spin logic devices (p-bits), which are modeled to realize an intrinsic sigmoidal activation function. A CMOS/spin based weighted array structure is designed to implement a restricted Boltzmann machine (RBM). Device-level simulations based on precise physics relations are used to validate the sigmoidal relation between the output probability of a p-bit and its input currents. Characteristics of the resistive networks and p-bits are modeled in SPICE to perform a circuit-level simulation investigating the performance, area, and power consumption tradeoffs of the weighted array. In the application-level simulation, a DBN is implemented in MATLAB for digit recognition using the extracted device and circuit behavioral models. The MNIST data set is used to assess the accuracy of the DBN using 5,000 training images for five distinct network topologies. The results indicate that a baseline error rate of 36.8% for a 784x10 DBN trained by 100 samples can be reduced to only 3.7% using a 784x800x800x10 DBN trained by 5,000 input samples. Finally, Power dissipation and accuracy tradeoffs for probabilistic computing mechanisms using resistive devices are identified.
description: ACM Great Lakes Symposium on VLSI (GLSVLSI), 2018
A tighter steering criterion using the Robertson-Schrodinger uncertainty relation
Creators: name: Sasmal, Souradeep
name: Pramanik, Tanumoy
name: Home, Dipankar
name: Majumdar, A. S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider quantum steering by non-Gaussian entangled states. The Reid steering criterion based on the Heisenberg uncertainty relation fails to detect steerability for many categories of such states. Here, we derive a tighter steering criterion using the Robertson-Schrödinger uncertainty relation. We show that our steering condition is able to detect steerability of several classes of non-Gaussian states such as entangled eigenstates of the two-dimensional harmonic oscillator, the photon subtracted squeezed vacuum state and the NOON state.
description: Error in calculations
Tau-proximity ligation assay reveals extensive previously undetected pathology prior to neurofibrillary tangles in preclinical Alzheimer's disease
Creators: name: Velentza Almpani, Elisavet
Publisher: name: Imperial College London
Year: 2023

description: Tauopathies, with Alzheimer’s disease (AD) the most common neurodegenerative disorder, are caused by the abnormal folding and aggregation of proteins that seed themselves and spread throughout the brain in a prion-like manner causing irreversible neuronal cell death and progressive neurological symptoms. The intracellular aggregates of the hyperphosphorylated tau in neurofibrillary tangles (NFTs), together with the extracellular deposits of amyloid beta, are the fundamental neuropathological characteristics of AD. It is unclear which tau species cause the toxicity and have seeding capacity, responsible for the prion-like spread of tau pathology. While neuronal loss correlates with the number of NFTs in AD, it is disproportionally higher, suggesting oligomeric tau species rather than NFTs being the toxic species. This also suggests that a proportion of tau pathology is not being detected by standard histopathological markers (which focus on the detection of phosphorylated tau), particularly since tau fibrillisation can occur independently of tau post-translational modifications. We have now developed a new assay, tau proximity ligation assay (tau-PLA), for the histopathological visualisation of a range of tau pathology, including previously invisible early tau multimers, in situ with anatomical and subcellular detail. Tau-PLA detected self-interacting tau in vitro and in situ in animal and post-mortem AD human brain with high specificity, recognising different patterns of tau pathology. In contrast with standard histopathological markers, tau-PLA detected a previously unreported early type of tau pathology revealing an extensive diffuse tau distribution in non-pathological brain regions of the brain along the Braak tau pathway. It also revealed that tau multimerization is one of the earliest detectable molecular events of AD tau pathology preceding tau hyperphosphorylation and misfolding. Tau Real-Time Quaking-Induced Conversion showed that the early tau multimers have high seeding activity and might be the toxic species contributing to the disease progress. Therefore, our findings open a new window to the study of early tau pathology, with potential implications in early diagnosis and the design of therapeutic strategies.
Homotopy-theoretic aspects of 2-monads
Creators: name: Lack, Stephen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18D05, 18C15, 18G55, 55U35

description: We study 2-monads and their algebras using a Cat-enriched version of Quillen model categories, emphasizing the parallels between the homotopical and 2-categorical points of view. Every 2-category with finite limits and colimits has a canonical model structure in which the weak equivalences are the equivalences; we use these to construct more interesting model structures on 2-categories, including a model structure on the 2-category of algebras for a 2-monad T, and a model structure on a 2-category of 2-monads on a fixed 2-category K.
description: 26 pages
Deducing Cosmological Observables from the S-matrix
Creators: name: Miao, S. P.
name: Prokopec, T.
name: Woodard, R. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study one loop quantum gravitational corrections to the long range force induced by the exchange of a massless scalar between two massive scalars. The various diagrams contributing to the flat space S-matrix are evaluated in a general covariant gauge and we show that dependence on the gauge parameters cancels at a point considerably {\it before} forming the full S-matrix, which is unobservable in cosmology. It is possible to interpret our computation as a solution to the effective field equations --- which could be done even in cosmology --- but taking account of quantum gravitational corrections from the source and from the observer.
description: 28 pages, 5 figures, uses LaTeX2e
Non-isothermal X-ray Emitting Gas in Clusters of Galaxies
Creators: name: Henriksen, Mark J.
name: White, Raymond E.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have analyzed X-ray spectra from six galaxy clusters which contain cooling flows: A85, A478, A1795, A2142, A2147, & A2199. The X-ray spectra were taken with the HEAO1-A2 Medium and High Energy Detectors and the Einstein Solid State Spectrometer. For each cluster, we simultaneously fit the spectra from these three detectors with models incorporating one or more emission components comprised of either thermal or cooling flow models. Five of the clusters (all but A2142) are better fit by a multi-component model (a cooling flow plus one or two thermal components or a two thermal component model) than by isothermal models. In four of the clusters (A85, A1795, A2147, & A2199), we find evidence for cool gas outside of the canonical cooling flow region. These latter four clusters can be characterized by three temperature components: a temperature inversion in the central region, a hotter region with an emission-weighted temperature which is higher than that of an isothermal model fit to the entire cluster, and a cooler region with an emission-weighted temperature of ~1 keV. The cool component outside the cooling flow region has a large minimum emission measure which we attribute, in part, to diffuse cool gas in the outer cluster atmosphere. If at least some of the cool exterior gas is virialized, this would imply a radially decreasing temperature profile. Together with the density profiles we have found, this leads to a baryon fraction in gas which increases with radius and is larger than that for an isothermal cluster atmosphere. Consequently, if clusters of galaxies trace the mass distribution in the Universe, the gas mass fraction we have calculated for an isothermal gas (which is ~15%) together with the nominal galaxy contribution (~5%) gives a baryon fraction of ~20%. Using the upper limit to the baryon density derived from Big
description: gzipped tar file of 26 PostScript pages, including 2 figures, 7 tables. Also available at http://www.astr.ua.edu/preprints/white/INDEX_READ_ME_1st.html