cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Setting the Stage for Cosmic Chronometers. I. Assessing the Impact of Young Stellar Populations on Hubble Parameter Measurements
Creators: name: Moresco, Michele
name: Jimenez, Raul
name: Verde, Licia
name: Pozzetti, Lucia
name: Cimatti, Andrea
name: Citro, Annalisa
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The expansion history of the Universe can be constrained in a cosmology-independent way by measuring the differential age evolution of cosmic chronometers. This yields a measurement of the Hubble parameter $H(z)$ as a function of redshift. The most reliable cosmic chronometers known so far are extremely massive and passively evolving galaxies. Age-dating these galaxies is, however, a difficult task, and even a small contribution of an underlying young stellar population could, in principle, affect the age estimate and its cosmological interpretation. We present several spectral indicators to detect, quantify and constrain such contamination in old galaxies, and study how their combination can be used to maximize the purity of cosmic chronometers selection. In particular, we analyze the CaII H/K ratio, the presence (or absence) of H$α$ and [OII] emission lines, higher order Balmer absorption lines, and UV flux; each indicator is especially sensitive to a particular age range, allowing us to detect young components ranging between 10 Myr and 1 Gyr. The combination of these indicators minimizes the contamination to a level below 1% in the case of ideal data. More importantly, it offers a way to control the systematic error on $H(z)$ as a function of the contamination by young stellar populations. We show that for our previous measurements of the Hubble parameter, the possible bias induced by the presence of a younger component is well below the current errors. We envision that these indicators will be instrumental in paving the road for a robust and reliable dating of the old population and its cosmological interpretation.
description: 18 pages, 8 figures. Accepted for publication in the Astrophysical Journal
title: ADCO, Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Cart. 29 (G 134), 996 folios, f. 0036
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: CG21/F.PETOT/2012
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: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi

description: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0036, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0036, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Coal as an Energy Resource/Summary of Forum
Creators: name: Lave, Lester B.
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: I have good news and bad news. First of all, the good news. There is lots and lots of coal. Depending on which estimates one believes, there are between 10 and 30 quintillion Btu of coal reserves. That is enough coal to last a long time even if coal were our only energy resource. Furthermore, the cost of coal is relatively inexpensive. It is the lowest cost resource available to us today, about $0.75 per million Btu compared, for example, with about $2.25 per million Btu for OPEC oil. It is cheap, and it is likely to stay cheap in the future because much of the coal could be strip-mined. That is the good news. The bad news is that sometime we might have to use that coal. This bad news can be appreciated only after a general overview, so I will begin with that
Chiral Lagrangian with higher resonances and flavour $ SU(3) $ breaking
Creators: name: Hayakawa, M.
name: Kurimoto, T.
name: Sanda, A. I.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A chiral Lagrangian with $ SU(3) $ breaking and higher resonances is proposed. In this model, the $ SU(3) $ breaking structure in vector-pseudoscalar sector is realized with the decay constants of pseudoscalar mesons and the masses of vector mesons used as inputs. We examine whether the resulting $ SU(3) $ breaking effect in the charge radii of pseudoscalar mesons is consistent with the experimental facts.
description: 29 pages, REVTEX(ver.3), DPNU-93-34
Robust semiparametric inference with missing data
Creators: name: Cantoni, Eva
name: de Luna, Xavier
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62G35

description: Classical semiparametric inference with missing outcome data is not robust to contamination of the observed data and a single observation can have arbitrarily large influence on estimation of a parameter of interest. This sensitivity is exacerbated when inverse probability weighting methods are used, which may overweight contaminated observations. We introduce inverse probability weighted, double robust and outcome regression estimators of location and scale parameters, which are robust to contamination in the sense that their influence function is bounded. We give asymptotic properties and study finite sample behaviour. Our simulated experiments show that contamination can be more serious a threat to the quality of inference than model misspecification. An interesting aspect of our results is that the auxiliary outcome model used to adjust for ignorable missingness by some of the estimators, is also useful to protect against contamination. We also illustrate through a case study how both adjustment to ignorable missingness and protection against contamination are achieved through weighting schemes, which can be contrasted to gain further insights.
description: 51 pages with appendices
Fractional generalization of Fick's law: a microscopic approach
Creators: name: Calvo, Ivan
name: Sanchez, Raul
name: Carreras, Benjamin A.
name: van Milligen, Boudewijn Ph.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In the study of transport in inhomogeneous systems it is common to construct transport equations invoking the inhomogeneous Fick law. The validity of this approach requires that at least two ingredients be present in the system. First, finite characteristic length and time scales associated to the dominant transport process must exist. Secondly, the transport mechanism must satisfy a microscopic symmetry: global reversibility. Global reversibility is often satisfied in nature. However, many complex systems exhibit a lack of finite characteristic scales. In this Letter we show how to construct a generalization of the inhomogeneous Fick law that does not require the existence of characteristic scales while still satisfying global reversibility.
description: 4 pages. Published version
Deformed Quantum Cohomology and (0,2) Mirror Symmetry
Creators: name: Guffin, Josh
name: Katz, Sheldon
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute instanton corrections to correlators in the genus-zero topological subsector of a (0,2) supersymmetric gauged linear sigma model with target space P1xP1, whose left-moving fermions couple to a deformation of the tangent bundle. We then deduce the theory's chiral ring from these correlators, which reduces in the limit of zero deformation to the (2,2) ring. Finally, we compare our results with the computations carried out by Adams et al.[ABS04] and Katz and Sharpe[KS06]. We find immediate agreement with the latter and an interesting puzzle in completely matching the chiral ring of the former.
description: AMSLatex, 30 pages, one eps figure. V4: typos corrected, final version appearing in JHEP
Building heritage of “Sapienza”: integrated digital tools for the executive project
Creators: name: Cumo, Fabrizio
name: Sferra, Adriana S.
name: Pennacchia, Elisa
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: The originality of the contribution has put in system, for an executive project, digital instruments (different from each other). The methodology has developed aspects of method, tools, skills and results: coordinating tools (Mc4energy©, Tally©), preparing the BIM Execution Plan, identifying the BIM modeler and coordinator, managing the information with Overview and Detailed BIM Use Map. The results of the research, financed in the A.A. 2017-18 by “Sapienza” in synergy with the Energy Plan, benefit the entire community: by implementing digital instruments, more effective methods and databases are produced for the project and the management over time of interventions for energy-environmental efficiency and indoor well-being. The paradigm shift takes place with industry 4.0.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
Parallel Spatio-Temporal Attention-Based TCN for Multivariate Time Series Prediction
Creators: name: Jin, Fan
name: Zhang, Ke
name: Huang, Yipan
name: Zhu, Yifei
name: Chen, Baiping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: As industrial systems become more complex and monitoring sensors for everything from surveillance to our health become more ubiquitous, multivariate time series prediction is taking an important place in the smooth-running of our society. A recurrent neural network with attention to help extend the prediction windows is the current-state-of-the-art for this task. However, we argue that their vanishing gradients, short memories, and serial architecture make RNNs fundamentally unsuited to long-horizon forecasting with complex data. Temporal convolutional networks (TCNs) do not suffer from gradient problems and they support parallel calculations, making them a more appropriate choice. Additionally, they have longer memories than RNNs, albeit with some instability and efficiency problems. Hence, we propose a framework, called PSTA-TCN, that combines a parallel spatio-temporal attention mechanism to extract dynamic internal correlations with stacked TCN backbones to extract features from different window sizes. The framework makes full use parallel calculations to dramatically reduce training times, while substantially increasing accuracy with stable prediction windows up to 13 times longer than the status quo.
OPeNDAP in the Cloud: Optimizing the Use of Storage Systems Provided by Cloud Computing Environments
Creators: name: Gallagher, James
name: Potter, Nathan
name: Byrne, Deirdre
name: Ogata, Jefferson
name: Relph, John
Publisher: name: Zenodo
Year: 2013

description: This presentation covers work for NOAA concerning Amazon's S3 and Glacier cloud-based data stores and the OPeNDAP data server (Hyrax) made at AGU's Fall 2013 meeting in San Francisco. Virtually all of the information is applicable to other cloud systems (in a conceptual sense) and other data servers at an architectural and high-level design sense. The two prototyping efforts show the extraordinary potential these services present along with some reasons to proceed with 'eyes wide open,' especially regarding costs and use-patterns for your data.

Please also see an earlier version of this presentation: Gallagher, J., Potter, N., Byrne, D., Ogata, J., & Relph, J. (2013, June 26). OPeNDAP in the Cloud. NOAA EDM, online. Zenodo. https://doi.org/10.5281/zenodo.10652430
Project, detail, construction. The german school of Karljosef Schattner and Heinz Bienefeld
Creators: name: Panzini, Nicola
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: The issue of the article originates from the research grant funded by the German international Daad Institution, developed at the Technische Universität of Munich, based on the study of a group of late-modern German architects as main topic. The article aims to focus especially on the work of two “master builders”, who represent the school of “detailed” designing: Karljosef Schattner (1924-2012) and Heinz Bienefeld (1926-1995). Schattner opens up a connection with the industrial field and the new production materials; Bienefeld elaborates the building body with the upgraded traditional construction techniques. These different approaches are explained by the analytical reading of emblematic works.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
Closing the Deficit
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1982
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Are deficits a problem? A year ago, the dominant view of Wall Street economists, the media and prominent politicians was that deficits would produce rising inflation, slow growth and a hesitant recovery in 1983. Interest rates could not decline, we were told, in the face of projected Treasury borrowing. Virtually every blip in interest rates was attributed by commentators to changing views about the possibility of financing a $200 billion deficit. A member of the Council of Economic Advisers who suggested, at one point, that there was no accurate or reliable evidence relating deficits to interest rates was made humble for his apostasy.
Climate change: the effects of personal beliefs and scientific uncertainty
Creators: name: Lave, Lester B
name: Dowlatabadi, Hadi
Publisher: name: Carnegie Mellon University
Year: 1981
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The potential consequences of global climate change are disastrous. The potential impact of emission control programs is enormous, and the benefits of such action are highly uncertain.
A semiotic model as a conceptual link between conception and detailed design
Creators: name: Condotta, Massimiliano
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: The detailed design is the tool that guarantees protection and logic to the transition between conception and realisation. In order for it to play this role, it is necessary to define and understand the concepts underlying the creative process and to understand how these are translated into the forms, technologies and materials described by the detailed design. Based on these assumptions and a case study of the development of the campus of the University Ca’ Foscari of Venice in San Giobbe, a semiotic model is presented that was elaborated and tested in European research projects that made it possible to refine cognitive tools to support the management of the construction and design processes, especially detailed design.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
Phase sensitive imaging of 10 GHz vibrations in an AlN microdisk resonator
Creators: name: Shen, Zhen
name: Han, Xu
name: Zou, Chang-Ling
name: Tang, Hong X.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a high frequency phase-sensitive heterodyne vibrometer, operating up to 10 GHz. Using this heterodyne vibrometer, the amplitude and phase fields of the fundamental thickness mode, the radial fundamental and the 2nd-order modes of an AlN optomechanical microdisk resonator are mapped with a displacement sensitivity of around 0.36 picometer at 1 Hz resolution bandwidth. The simultaneous amplitude and phase measurement allows precise mode identification and characterization. The recorded modal frequencies and proles are consistent with numerical simulations. This vibrometer will be of great significance for the development of high frequency mechanical devices.
S_3-flavour symmetry as realized in lepton flavour violating processes
Creators: name: Mondragón, A.
name: Mondragón, M.
name: Peinado, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A variety of lepton flavour violating effects related to the recent discovery of neutrino oscillations and mixings is here systematically discussed in terms of an S_3-flavour permutational symmetry. After a brief review of some relevant results on lepton masses and mixings, that had been derived in the framework of a Minimal S_3-Invariant Extension of the Standard Model, we derive explicit analytical expressions for the matrices of the Yukawa couplings and compute the branching ratios of some selected flavour changing neutral current (FCNC) processes, as well as, the contribution of the exchange of neutral flavour changing scalars to the anomaly of the muon's magnetic moment as functions of the masses of the charged leptons and the neutral Higgs bosons. We find that the S_3 x Z_2 flavour symmetry and the strong mass hierarchy of the charged leptons strongly suppress the FCNC processes in the leptonic sector well below the present experimental upper bounds by many orders of magnitude. The contribution of FCNC to the anomaly of the muon's magnetic moment is small but non-negligible.
description: 23 pages, one figure. To appear in J. Phys A: Mathematical and Theoretical (SPE QTS5)
Clean Recycling of Lead-Acid Batteries for Electric Vehicles: A Reply to Socolow and Thomas
Creators: name: Lave, Lester B
name: Hendrickson, Chris
name: McMichael, Francis
Publisher: name: Carnegie Mellon University
Year: 1998
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: This article is stimulated by the analysis of Socolow and Thomas in the first issue of this journal. Our work showed that a lead-acid battery-powered electric vehicle (Ev) would result in more lead being discharged into the environment than a comparable car burning leaded gasoline. Five hundred thousand EVs would lead to a 20% increase in lead use in the United States, and presumably a comparable 20% increase in lead discharges.
title: Rapport de voyage, Flandre (1952) : Croisière New Orleans/New Orleans, 1956, voyage n°2
Creators: name: De Lacroix de Lavalette, Hubert
name: Lejeune, Jacques
name: Normand, Georges
name: Vincelet, Louis
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: subject: Journaux de bord
subject: Compagnie Générale Transatlantique
subject: Transports maritimes - Histoire
subject: Marine marchande

description: Chapitrage : Rapport général / du capitaine - Rapport du commissaire - Rapport du second - Rapport de l'officier de sécurité - Rapport de l'officier de navigation - Rapport du médecin - Rapport contentieux
description: Source: French Lines & Compagnies, 1997 004 4990-07
description: Coverage: 1956-02-07/1956-02-22
Neutrino masses from Planck-scale lepton number breaking
Creators: name: Ibarra, Alejandro
name: Strobl, Patrick
name: Toma, Takashi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider an extension of the Standard Model by right-handed neutrinos and we argue that, under plausible assumptions, a neutrino mass of ${\cal O}(0.1)\,{\rm eV}$ is naturally generated by the breaking of the lepton number at the Planck scale, possibly by gravitational effects, without the necessity of introducing new mass scales in the model. Some implications of this framework are also briefly discussed.
description: 5 pages, 2 figures. Matches published version
Plug-and-Play and innovative process technologies (Mapping/Modelling/Making/Monitoring) in deep renovation interventions
Creators: name: Piaia, Emanuele
name: Turillazzi, Beatrice
name: Longo, Danila
name: Boeri, Andrea
name: Di Giulio, Roberto
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: Deep renovation is the term coined by the Energy Efficiency Directive of the EC (2012/27) for defining economically advantageous building renovation interventions that make possible the reduction of the energy consumption of a building by at least 60% compared to the condition prior to the refurbishment. In this field, the P2ENDURE research project, funded by the European Union under H2020 programme, is aimed at developing refurbishment strategies, functional transformation and improvement of the energy performance of existing buildings based on the use of Plug-and-Play technologies and components tested on 10 case studies according to a procedure called 4M (Mapping/Modelling/Making/Monitoring).
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
Utilization of open-source game engines for the description of construction systems suited to self-building
Creators: name: Brunetti, Gian Luca
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: This article explores the possibility of utilizing a game engine to support the description of construction solutions aimed to self-builders. The results of this experimentation strengthen the hypothesis that game engines would worth to be made a part of the arsenal of resources available to designers for supporting the description of designed objects. In the presented case study, the use of the game engine has allowed the creation of a software application giving users the ability to navigate interactively the construction procedures by choosing the pace of their exploration and their viewpoints during the work phases.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
On the Distribution of Neutral and Charged Pions through the Production of a Classical Pion Field
Creators: name: Anselm, A. A.
name: Bander, Myron
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: High energy reactions may produce a state around the collision point that is best described by a classical pion field. Such a field might be an isospin rotated vacuum of the chiral $σ$-model or, as discussed in this work, a solution of the equations of motion resultinng from the coupling of fields of this model to quarks produced in the collision. In such configurations all directions in isospin space are allowed leading to a sizable probability of events with, essentially, only charged particles (Centauros) or all neutral particles (anti-Centauros). (In more common statistical models of multiparticle production, the probability of such events is suppressed exponentially by the total multiplicity.) We find that the isospin violation due to the mass difference of the up and down quarks has a significant effect on these distributions and enhances the production of events consisting predominantly of neutral particles.
description: LaTex with Revtex III macros, 9 pages, UCI TR 93-32
Digital flows of information for the operational phase: the Facility Management of Apple Developer Academy
Creators: name: Russo Ermolli, Sergio
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: The operational/management phase is the one most affected by an ineffective organization of information, which occurred in the previous phases. The activity of this applied research had the objective of verifying the possibility of reducing the problems that arise between the executive phase and the Management phase, through the improvement of the interaction between the different protagonists in the exchange, sharing and updating of informational datasets. The work focused on the case study of the Apple Developer Academy in Naples, the first school in Europe for the development of digital mobile applications, with respect to which the management strategies were simulated starting from the development of an Informational Modeling functional to the operational phase of the spaces.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
SMART models for new management of the building process
Creators: name: Di Tonno, Clarissa
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: These pages illustrate ongoing research investigating the theme of the relations between Building Construction, industrialization, ICT and procedural and design choices from the standpoint of quality and environmental sustainability in industry 4.0 and in light of new regulations and technological innovations. This research is currently undergoing testing with several Public Administrations, exploring the possibility of a SMART Network digital platform model based on a SMART System: innovative, adaptive and dynamic, offering decisional support to Building Process phases. A SMART System is not only an intelligent system but is also inclusive, shared and has (4.0) social, environmental, economic and industrial implications in BIM, for new role of the designer in Open Source perspective.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
Inequality Constrained Multilevel Models
Creators: name: Kato, Bernet S.
name: Peeters, Carel F. W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Multilevel or hierarchical data structures can occur in many areas of research, including economics, psychology, sociology, agriculture, medicine, and public health. Over the last 25 years, there has been increasing interest in developing suitable techniques for the statistical analysis of multilevel data, and this has resulted in a broad class of models known under the generic name of multilevel models. Generally, multilevel models are useful for exploring how relationships vary across higher-level units taking into account the within and between cluster variations. Research scientists often have substantive theories in mind when evaluating data with statistical models. Substantive theories often involve inequality constraints among the parameters to translate a theory into a model. This chapter shows how the inequality constrained multilevel linear model can be given a Bayesian formulation, how the model parameters can be estimated using a so-called augmented Gibbs sampler, and how posterior probabilities can be computed to assist the researcher in model selection.
description: 20 pages. Postprint of Chapter 13 in: H. Hoijtink, I. Klugkist, & P.A. Boelen (Eds.). "Bayesian Evaluation of Informative Hypotheses." New York: Springer, 2008: pp. 273-295
Additional file 2 of Effects of high-fat diet on thyroid autoimmunity in the female rat
Creators: name: Liao, Zhengzheng
name: Kong, Ying
name: Zeng, Liang
name: Wan, Qing
name: Hu, Jinfang
name: Cai, Yaojun
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2. The OPLS-DA score plot derived from the LC-MS of serum obtained from theHFD (blue) and control (grey) groups.
Freeze-In Dark Matter from a sub-Higgs Mass Clockwork Sector via the Higgs Portal
Creators: name: Kim, Jinsu
name: McDonald, John
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The clockwork mechanism allows extremely weak interactions and small mass scales to be understood in terms of the structure of a theory. A natural application of the clockwork mechanism is to the freeze-in mechanism for dark matter production. Here we consider a Higgs portal freeze-in dark matter model based on a scalar clockwork sector with a mass scale which is less than the Higgs boson mass. The dark matter scalar is the lightest scalar of the clockwork sector. Freeze-in dark matter is produced by the decay of thermal Higgs bosons to the clockwork dark matter scalars. We show that the mass of the dark matter scalar is typically in the 1-10 keV range and may be warm enough to have an observable effect on perturbation growth and Lyman-$α$ observations. Clockwork Higgs portal freeze-in models have a potentially observable collider phenomenology, with the Higgs boson decaying to missing energy in the form of pairs of long-lived clockwork sector scalars, plus a distribution of different numbers of quark and lepton particle-antiparticle pairs. The branching ratio to different numbers of quark and lepton pairs is determined by the clockwork sector parameters (the number of clockwork scalars $N$ and the clockwork charge $q$), which could therefore be determined experimentally if such Higgs decay modes are observed. In the case of a minimal Standard Model observable sector, the combination of nucleosynthesis and Lyman-$α$ constraints is likely to exclude on-shell Higgs decays to clockwork scalars, although off-shell Higgs decays would still be possible. On-shell Higgs decays to clockwork scalars can be consistent with cosmological constraints in simple extensions of the Standard Model with light singlet scalars.
description: v3: version accepted for publication in PRD
Conception d'outils de communication spécifiques au contexte éducatif
Creators: name: George, Sébastien
name: Bothorel, Cécile
Publisher: name: arXiv
Year: 2007
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: In a distance learning context, providing usual communication tools (forum, chat, ...) is not always enough to create efficient interactions between learners and to favour collective knowledge building. A solution consists in setting-up collective activities which encourage learners to communicate. But, even in that case, tools can sometimes become a barrier to communication. We present in this paper examples of specific tools that are designed in order to favour and to guide communications in an educational context, but also to foster interactions during learning activities that are not inherently collaborative. We describe synchronous communication tools (semi-structured chat), asynchronous tools (temporally structured forum, contextual forum) and a system which promotes mutual aid between learners.
Choquet-Deny groups and the infinite conjugacy class property
Creators: name: Frisch, Joshua
name: Hartman, Yair
name: Tamuz, Omer
name: Ferdowsi, Pooya Vahidi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Group Theory (math.GR)
subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: A countable discrete group $G$ is called Choquet-Deny if for every non-degenerate probability measure $μ$ on $G$ it holds that all bounded $μ$-harmonic functions are constant. We show that a finitely generated group $G$ is Choquet-Deny if and only if it is virtually nilpotent. For general countable discrete groups, we show that $G$ is Choquet-Deny if and only if none of its quotients has the infinite conjugacy class property. Moreover, when $G$ is not Choquet-Deny, then this is witnessed by a symmetric, finite entropy, non-degenerate measure.
description: 14 pages. Minor error corrections and changes to definitions, wording and notation
Patchy sticky hard spheres: analytical study and Monte Carlo simulations
Creators: name: Fantoni, Riccardo
name: Gazzillo, Domenico
name: Giacometti, Achille
name: Miller, Mark A.
name: Pastore, Giorgio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a fluid of hard spheres bearing one or two uniform circular adhesive patches, distributed so as not to overlap. Two spheres interact via a ``sticky'' Baxter potential if the line joining the centers of the two spheres intersects a patch on each sphere, and via a hard sphere potential otherwise. We analyze the location of the fluid-fluid transition and of the percolation line as a function of the size of the patch (the fractional coverage of the sphere's surface) and of the number of patches within a virial expansion up to third order and within the first two terms (C0 and C1) of a class of closures Cn hinging on a density expansion of the direct correlation function. We find that the locations of the two lines depend sensitively on both the total adhesive coverage and its distribution. The treatment is almost fully analytical within the chosen approximate theory. We test our findings by means of specialized Monte Carlo (MC) simulations and find the main qualitative features of the critical behaviour to be well captured in spite of the low density perturbative nature of the closure. The introduction of anisotropic attractions into a model suspension of spherical particles is a first step towards a more realistic description of globular proteins in solution.
description: 47 pages, 18 figures, to appear on J. Chem. Phys
Vector boson Pair Production at Supercolliders; useful approximate helicity amplitudes
Creators: name: Layssac, J.
name: Renard, F. M.
name: Gounaris, G.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study vector boson pair production at $LHC$ and $SSC$, taking into account the effects generated by the anomalous vector boson and Higgs couplings induced by the operators ${\cal O}_W$ and ${\cal O}_{UW}$, which are the only dim=6 operators preserving $SU(2)_c$. These operators lead to enhanced production of transverse vector bosons, as opposed to the enhanced production of longitudinal gauge bosons, induced in case $M_H\gsim 1\ TeV$, by dim=4 terms already existing in the Standard Model lagrangian. For vector boson pair masses larger than $1\ TeV$, we establish very simple approximate expressions for the standard as well as the non-standard helicity amplitudes for $q\bar q$ annihilation and vector boson fusion, which accurately describe the physics. These expressions should simplify the experimental search for such interactions. We finally discuss the observability and the disentangling of these interactions.
description: 22 pages, 6 figures avaible by air mail upon request , (e-mail layssac@lpmsun2.lpm.univ-montp2.fr PM/93-26 THES-TP 93/8
A Type D Non-Vacuum Spacetime with Causality Violating Curves, and its Physical Interpretation
Creators: name: Ahmed, Faizuddin
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a topologically trivial, non-vacuum solution of the Einstein's field equations in four-dimensions, which is regular everywhere. The metric admits circular closed timelike curves, which appear beyond the null curve, and these timelike curves are linearly stable under linear perturbations. Additionally, the spacetime admits null geodesics curve which are not closed, and the metric is of type D in the Petrov classification scheme. The stress-energy tensor anisotropic fluid satisfy the different energy conditions and a generalization of Equation-of-State parameter of perfect fluid $p=ω\,ρ$. The metric admits a twisting, shearfree, non-exapnding timelike geodesic congruence. Finally, the physical interpretation of this solution, based on the study of the equation of the geodesics deviation, will be presented.
description: 18 pages, 2 figures
Classification of Orthogonal Arrays by Integer Programming
Creators: name: D. A. Bulutoglu
name: Francois Margot
Publisher: name: Carnegie Mellon University
Year: 1984
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The problem of classifying all isomorphism classes of OA(N,k,s,t)'s is shown to be equivalent to finding all isomorphism classes of non-negative integer solutions to a system of linear equations under the symmetry group of the system of equations. A branch-and-cut algorithm developed by Margot [2002. Pruning by isomorphism in branch-and-cut. Math. Programming Ser. A 94, 71–90; 2003a. Exploiting orbits in symmetric ILP. Math. Programming Ser. B 98, 3–21; 2003b. Small covering designs by branch-and-cut. Math. Programming Ser. B 94, 207–220; 2007. Symmetric ILP: coloring and small integers. Discrete Optim., 4, 40–62] for solving integer programming problems with large symmetry groups is used to find all non-isomorphic OA(24,7,2,2)'s, OA(24,k,2,3)'s for 6≤k≤11, OA(32,k,2,3)'s for 6≤k≤11, OA(40,k,2,3)'s for 6≤k≤10, OA(48,k,2,3)'s for 6≤k≤8, OA(56,k,2,3)'s, OA(80,k,2,4)'s, OA(112,k,2,4)'s, for k=6,7, OA(64,k,2,4)'s, OA(96,k,2,4)'s for k=7,8, and OA(144,k,2,4)'s for k=8,9. Further applications to classifying covering arrays with the minimum number of runs and packing arrays with the maximum number of runs are presented.
On the restriction problem for discrete paraboloid in lower dimension
Creators: name: Rudnev, Misha
name: Shkredov, Ilya D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B05

description: We apply geometric incidence estimates in positive characteristic to prove the optimal $L^2 \to L^3$ Fourier extension estimate for the paraboloid in the four-dimensional vector space over a prime residue field. In three dimensions, when $-1$ is not a square, we prove an $L^2 \to L^{\frac{32}{9} }$ extension estimate, improving the previously known exponent $\frac{68}{19}.$
description: Final version
The direction of ideas for the Internet of Things. cHOMgenius project. Prototype System&SharedProject
Creators: name: Ginelli, Elisabetta
name: Pozzi, Gianluca
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2019

description: Qualifying technologies of Industry 4.0, the recognition of the project’s “centrality” and the integration between ideation and design practice are at the basis of cHOMgenius experimental project, winner of “Smart Living” call for tender and funded by Regione Lombardia to support experimental development and innovation projects (S&I) carried out by partnerships and universities. This project responds to the aim of introducing new or ameliorative products, processes/services from a technological, productive and organisational perspective, in order to valorise the ‘Smart Living’ theme. cHOMgenius proves that the direction of ideas (represented by the technological culture’s approach to design, which need to be “accomplishable” and to “anticipate decisions”) produces innovation for the Internet of “things”.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 18 (2019): Detailed Design
Reconstruction-Stabilized Epitaxy of LaCoO3/SrTiO3(111) Heterostructures by Pulsed Laser Deposition
Creators: name: Hu, Minhui
name: Zhang, Qinghua
name: Gu, Lin
name: Guo, Qinlin
name: Cao, Yanwei
name: Kareev, M.
name: Chakhalian, J.
name: Guo, Jiandong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Unlike widely explored complex oxide heterostructures grown along [001], the study of [111]-oriented heterointerfaces are very limited thus far. One of the main challenges is to overcome the polar discontinuity that hinders the epitaxy of atomically sharp interfaces. Here, by taking the LaCoO3/SrTiO3(111) as a prototype, we show that the reconstruction, which effectively compensates the surface polarity, can stabilize the epitaxy of the heterostructure with polar discontinuity. Reconstructed substrate surface is prepared, while the growth is controlled to form reconstruction on the film surface. To suppress the chemical diffusion across the interface, the growth is interrupted between each unit cell layer to allow the lattice relaxation at a lowered temperature. In this way, high quality two-dimensional growth is realized and the heterointerfaces exhibit sharpness at the atomic scale. Our work provides a path to precisely control the growth of complex oxide heterostructures along polar orientations that exhibit emergent quantum phenomena.
description: 12 pages, 3 figures
Dynamical and Topological Properties of the Kitaev Model in a [111] Magnetic Field
Creators: name: Gohlke, Matthias
name: Moessner, Roderich
name: Pollmann, Frank
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Kitaev model exhibits a Quantum Spin Liquid hosting emergent fractionalized excitations. We study the Kitaev model on the honeycomb lattice coupled to a magnetic field along the [111] axis. Utilizing large scale matrix product based numerical models, we confirm three phases with transitions at different field strengths depending on the sign of the Kitaev exchange: a non-abelian topological phase at low fields, an enigmatic intermediate regime only present for antiferromagnetic Kitaev exchange, and a field-polarized phase. For the topological phase, we numerically observe the expected cubic scaling of the gap and extract the quantum dimension of the non-Abelian anyons. Furthermore, we investigate dynamical signatures of the topological and the field-polarized phase using a matrix product operator based time evolution method.
description: Changed convention to be in accordance with published article
Metallicity distribution of red giants in the Inner Galaxy from Near Infrared spectra
Creators: name: González-Fernández, C.
name: Cabrera-Lavers, A.
name: Hammersley, P. L.
name: Garzón, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we present low resolution (R=500) near-infrared spectra for selected and serendipitous sources in six inner in-plane Galactic fields, with the aim of analysing the stellar content present. From the equivalent widths of the main features of the K band spectra (the NaI, CaI and CO bandheads) we have derived the metallicities of the sources by means of the empirical scale obtained by Ramírez et al. (2000) and Frogel et al. (2001) for luminous red giants. Our results show how the mean metallicity of the sample varies with Galactic longitude. We find two groups of stars, one whose [Fe/H] is similar to the values obtained for the bulge in other studies (Molla et al. 2000; Schultehis et al 2003), and a second one with a metallicity similar to that of the inner parts of the disc (Rocha-Pinto et al. 2006). The relative density of both groups of stars in our sample varies in a continuous way from the bulge to the disc. This could hint at the existence of a single component apart from the disc and bulge, running from l=7 to l=27 and able to transport disc stars inwards and bulge stars outwards, which could be the Galactic bar that has been detected in previous works as an overdensity of stars located at those galactic coordinates (Hammersley et al. 1994, 2000; Picaud et al. 2003).
description: 20 pages, 23 figures. Accepted for publication in A&A
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Cart. 168 (11 H 66), f. 0144r
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: CG21/F.PETOT/2010
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP

description: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0144r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0144r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
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
Ground state energy of mixture of Bose gases
Creators: name: Michelangeli, Alessandro
name: Nam, Phan Thành
name: Olgiati, Alessandro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the asymptotic behavior of a system of multi-component trapped bosons, when the total particle number $N$ becomes large. In the dilute regime, when the interaction potentials have the length scale of order $O(N^{-1})$, we show that the leading order of the ground state energy is captured correctly by the Gross-Pitaevskii energy functional and that the many-body ground state fully condensates on the Gross-Pitaevskii minimizers. In the mean-field regime, when the interaction length scale is $O(1)$, we are able to verify Bogoliubov's approximation and obtain the second order expansion of the ground state energy. While such asymptotic results have several precursors in the literature on one-component condensates, the adaption to the multi-component setting is non-trivial in various respects and the analysis will be presented in details.
description: To appear on "Reviews in Mathematical Physics" (2018)
Choosing Freely: The Friedmans' Influence On Economic and Social Policy
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1973
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: At Milton Friedman's sixtieth birthday conference, in 1972, George Stigler, the dinner speaker and Milton's friend and colleague, discussed economists' or academics' influence, particularly Milton Friedman's influence. As I recall the lecture after more than thirty years, Stigler began by noting that Milton Friedman was among the most influential of all economists. Then he asked how influential that might be. The implicit answer was that maximizing individuals recognized their self-interest and acted accordingly. There was limited room for influence or persuasion. Influence had, at most, the modest role of hastening the adoption of better solutions. To bolster his argument, Stigler chose the role of economists in repealing the British Corn Laws. With his typical irony, he drove home the point. "How heartening a tale! Economists turned a great nation from error to truth, from inefficiency to maximum output." Stigler (1975 as quoted in Schwartz, 1993, 207) George Stigler then gave his own explanation of the repeal of the Corn Laws. Economists' defense of free trade had a modest role