cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Low-energy holographic models for QCD
Creators: name: Afonin, S. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the bottom-up holographic models for QCD which contain the ultraviolet (UV) cutoff. Such models are supposed to describe exclusively the low-energy sector of QCD. The introduction of UV cutoff in the soft wall model is shown to result in a model with qualitatively different predictions. The ensuing model seems to be able to incorporate the constituent quark mass. It is also demonstrated that in order to reproduce the results of the usual soft wall model for the vector and higher spin mesons in the presence of the UV cutoff one can consider the flat bulk space with a modified dilaton background.
description: 10 pages, corrected version, accepted by Phys.Rev.C
High-order coherent communications using mode-locked dark-pulse Kerr combs from microresonators
Creators: name: Fülöp, Attila
name: Mazur, Mikael
name: Lorences-Riesgo, Abel
name: Wang, Pei-Hsun
name: Xuan, Yi
name: Leaird, Dan. E.
name: Qi, Minghao
name: Andrekson, Peter A.
name: Weiner, Andrew M.
name: Torres-Company, Victor
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Microresonator frequency combs harness the nonlinear Kerr effect in an integrated optical cavity to generate a multitude of phase-locked frequency lines. The line spacing can reach values in the order of 100 GHz, making it an attractive multi-wavelength light source for applications in fiber-optic communications. Depending on the dispersion of the microresonator, different physical dynamics have been observed. A recently discovered comb state corresponds to the formation of mode-locked dark pulses in a normal-dispersion microcavity. Such dark-pulse combs are particularly compelling for advanced coherent communications since they display unusually high power conversion efficiency. Here, we report the first coherent transmission experiments using 64-quadrature amplitude modulation encoded onto the frequency lines of a dark-pulse comb. The high conversion efficiency of the comb enables transmitted optical signal-to-noise ratios above 33 dB while maintaining a laser pump power level compatible with state-of-the-art hybrid silicon lasers.
Terms of Reference for the working group 'Plan for structuring and developing FAIR competencies and knowledge'
Creators: name: Danish e-Infrastructure Consortium (DeiC)
Publisher: name: Zenodo
Year: 2024
Subjects: FAIR principles
National strategy
Denmark

description: Terms of reference for the working group 'Plan for structuring and developing FAIR competencies and knowledge' in connection with the National Strategy for Data Management based on the FAIR principles. 

The working group is established based on the ‘Remit and Terms of Reference for the Reference group for the implementation of the National Strategy for Data Management Based on the FAIR Principles’.
title: ADCO, Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Cart. 169 (11 H 63), f. 0039v
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/2011
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 de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Archives départementales de la Côte-d'Or, Cart. 169 (11 H 63), f. 0039v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Archives départementales de la Côte-d'Or, Cart. 169 (11 H 63), f. 0039v, 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
Nonequilibrium Zeeman-splitting in quantum transport through nanoscale junctions
Creators: name: Schmitt, Sebastian
name: Anders, Frithjof B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the nonequilibrium differential conductance $G(V)$ through a quantum dot as function of bias voltage $V$ and applied magnetic field $H$. We use a Keldysh conserving approximation for weakly correlated and the scattering states numerical renormalization group for the intermediate and strongly correlated regime out of equilibrium. In the weakly correlated regime, the Zeeman splitting observable in $G(V)$ strongly depends on the asymmetry of the coupling to the two leads, as well as on particle-hole asymmetry of the quantum dot. In contrast, in the strongly correlated regime, where Kondo-correlations dominate, the position $Δ_K$ of the Zeeman-split zero-bias anomaly is independent of such asymmetries and always found to be of the order of the Zeeman energy $Δ_0$. We find a crossover from the purely spin-fluctuation driven Kondo regime at small magnetic fields with $Δ_KΔ_0$ as it was observed in recent experiments.
description: 3 figures
Carnet nº 25, commencé à Saïgon (p. 7)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 19-12-1931
From Non-trivial Geometries to Power Spectra and Vice Versa
Creators: name: Brooker, D. J.
name: Tsamis, N. C.
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 review a recent formalism which derives the functional forms of the primordial -- tensor and scalar -- power spectra of scalar potential inflationary models. The formalism incorporates the case of geometries with non-constant first slow-roll parameter. Analytic expressions for the power spectra are given that explicitly display the dependence on the geometric properties of the background. Moreover, we present the full algorithm for using our formalism, to reconstruct the model from the observed power spectra. Our techniques are applied to models possessing "features" in their potential with excellent agreement.
Design and Implementation of a Self-Securing Storage Device (CMU-CS-00-129)
Creators: name: Strunk, John D.
name: Goodson, Garth R.
name: Scheinholtz, Michael L.
name: Craig A, B. Soules
name: Ganger, Gregory R.
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Self-securing storage prevents intruders from undetectably tampering with or permanently deleting stored data. To accomplish this, self-securing storage devices internally audit all requests and keep all versions of all data for a window of time, regardless of the commands received from potentially-compromised host operating systems. Within the window, system administrators have this valuable information for intrusion diagnosis and recovery. The S4 implementation combines log-structuring with novel metadata journaling and data replication techniques to minimize the performance costs of comprehensive versioning. Experiments show that self-securing storage devices can deliver performance that is comparable with conventional storage. Further, analyses indicate that several weeks worth of all versions can reasonably be kept on state-of-the-art disks, especially when differencing and compression technologies are employed.
Approximate analytical description of the nonaffine response of amorphous solids
Creators: name: Zaccone, Alessio
name: Scossa-Romano, Enzo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An approximation scheme for model disordered solids is proposed that leads to the fully analytical evaluation of the elastic constants under explicit account of the inhomogeneity (nonaffinity) of the atomic displacements. The theory is in quantitative agreement with simulations for central-force systems and predicts the vanishing of the shear modulus at the isostatic point with the linear law μ ~ (z - 2d), where z is the coordination number. The vanishing of rigidity at the isostatic point is shown to be a consequence of the canceling out of positive affine and negative nonaffine terms.
Summability in a monomial for some classes of singularly perturbed partial differential equation
Creators: name: Carrillo, Sergio A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34M30, 34E05

description: The aim of this paper is to continue the study of asymptotic expansions and summability in a monomial in any number of variables. In particular we characterize these expansions in terms of bounded derivatives and we develop tauberian theorems for the summability processes involved. Furthermore, we develop and apply the Borel-Laplace analysis in this framework to prove the monomial summability of solutions of a specific class of singularly perturbed PDEs.
$\barψ ψ$-condensate in constant magnetic fields
Creators: name: Anguiano-Galicia, M. de J.
name: Bashir, A.
name: Raya, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We solve Dirac equation in the presence of a constant magnetic field in (3+1)- and (2+1)-dimensions. Quantizing the fermion field, we calculate $\barψ ψ$-condensate from first principles for parity conserving and violating Lagrangians for arbitrary field strength. We make comparison with the results already known in the literature for some particular cases and point out the relevance of our work for possible physical applications.
description: 4 pages, no figures
Blazhko modulation in the infrared
Creators: name: Jurcsik, J.
name: Hajdu, G.
name: Dékány, I.
name: Nuspl, J.
name: Catelan, M.
name: Grebel, E. K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present first direct evidence of modulation in the $K$-band of Blazhko-type RR Lyrae stars that are identified by their secular modulations in the I-band data of OGLE-IV. A method has been developed to decompose the $K$-band light variation into two parts originating from the temperature and the radius changes using synthetic data of atmosphere-model grids. The amplitudes of the temperature and the radius variations derived from the method for non-Blazhko RRab stars are in very good agreement with the results of the Baade-Wesselink analysis of RRab stars in the M3 globular cluster confirming the applicability and correctness of the method. It has been found that the Blazhko modulation is primarily driven by the change in the temperature variation. The radius variation plays a marginal part, moreover it has an opposite sign as if the Blazhko effect was caused by the radii variations. This result reinforces the previous finding based on the Baade-Wesselink analysis of M3 (NGC 5272) RR Lyrae, that significant modulation of the radius variations can only be detected in radial-velocity measurements, which relies on spectral lines that form in the uppermost atmospheric layers. Our result gives the first insight into the energetics and dynamics of the Blazhko phenomenon, hence it puts strong constraints on its possible physical explanations.
description: 16 pages, accepted for publication in MNRAS
Delayed Instantiation Bulk Operations for Management of Distributed, Object-based Storage Systems (CMU–PDL–09–108)
Creators: name: Klosterman, Andrew J.
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: The basic distributed, object-based storage system model lacks features for storage management. This work presents and analyzes a strategy for using existing facilities to implement atomic operations on sets of objects. These bulk operations form the basis for managing snapshots (read-only copies) and forks (read-write copies) of portions of the storage system. Specifically, we propose to leverage the access control capabilities, and annotations at the metadata server, to allow for selective clone and delete operations on sets of objects. In order to act upon a set of objects, a bulk operation follows these steps. First, the metadata server accepts the operation, contacts the storage nodes to revoke outstanding capabilities on the set of objects, and retains a record of the operation and the affected set of objects. At this point, clients can make no changes to existing objects since any capabilities they hold will be rejected by storage nodes. Second, when clients subsequently contact the metadata server to access affected objects (e.g., acquire fresh capabilities), any records of bulk operations are consulted. Finding that a client is accessing an affected object, the metadata server will take the necessary steps to enact the uninstantiated operation before responding to the client request. This eventual enforcement of operation semantics ensures compliance with the operation’s intent but delays the corresponding work until the next client access. With appropriate background instantiation, the work of instantiating bulk operations can be hidden from clients. In this dissertation, we present algorithms suitable for performing bulk operations over distributed objects using m-of-n encodings. The core logic is concentrated at the metadata server, with minimal support at clients and storage nodes. We quantify the overheads associated with the implementation and describe schemes for mitigating them. We demonstrate the use of bulk operations to create snapshots in an NFS server running atop distributed, object-based storage
Causality and dispersion relations and the role of the S-matrix in the ongoing research
Creators: name: Schroer, Bert
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The adaptation of the Kramers-Kronig dispersion relations to the causal localization structure of QFT led to an important project in particle physics, the only one with a successful closure. The same cannot be said about the subsequent attempts to formulate particle physics as a pure S-matrix project. The feasibility of a pure S-matrix approach are critically analyzed and their serious shortcomings are highlighted. Whereas the conceptual/mathematical demands of renormalized perturbation theory are modest and misunderstandings could easily be corrected, the correct understanding about the origin of the crossing property requires the use of the mathematical theory of modular localization and its relation to the thermal KMS condition. These new concepts, which combine localization, vacuum polarization and thermal properties under the roof of modular theory, will be explained and their potential use in a new constructive (nonperturbative) approach to QFT will be indicated. The S-matrix still plays a predominant role but, different from Heisenberg's and Mandelstam's proposals, the new project is not a pure S-matrix approach. The S-matrix plays a new role as a "relative modular invariant"..
description: 47 pages expansion of arguments and addition of references, corrections of misprints and bad formulations
Decentralized Storage Consistency via Versioning Servers (CMU-CS-02-180)
Creators: name: Goodson, Garth
name: Wylie, Jay
name: Ganger, Greg
name: Reiter, Mike
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper describes a consistency protocol that exploits versioning storage-nodes. The protocol provides linearizability with the possibility of read aborts in an asynchronous system that may suffer client and storage-node crash failures. The protocol supports both replication and erasure coding (which precludes post hoc repair of partial-writes), and avoids the excess work of two-phase commits. Versioning storage-nodes allow the protocol to avoid excess communication in the common case of no write sharing and no failures of writing clients.
A Chekanov-Eliashberg algebra for Legendrian graphs
Creators: name: An, Byung Hee
name: Bae, Youngjin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: Primary 53D42, 57R17, Secondary 57M15

description: We define a differential graded algebra for Legendrian graphs and tangles in the standard contact Euclidean three space. This invariant is defined combinatorially by using ideas from Legendrian contact homology. The construction is distinguished from other versions of Legendrian contact algebra by the vertices of Legendrian graphs. A set of countably many generators and a generalized notion of equivalence are introduced for invariance. We show a van Kampen type theorem for the differential graded algebras under the tangle replacement. Our construction recovers many known algebraic constructions of Legendrian links via suitable operations at the vertices.
description: 94 pages
Livestreaming Music in the UK: Quantitative Analysis
Creators: name: Haferkorn, Julia
name: Kavanagh, Brian
name: Leak, Sam
Publisher: name: Middlesex University
Year: 2021
Subjects: subject: 190407 Music Performance
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Quantitative analysis of the survey data collected as part of the live streaming musical performances research project
Livestreaming Music in the UK: Qualitative Analysis
Creators: name: Haferkorn, Julia
name: Kavanagh, Brian
name: Leak, Sam
Publisher: name: Middlesex University
Year: 2021
Subjects: subject: 190407 Music Performance
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Quantitative analysis of the survey data collected as part of the live streaming musical performances research project
Decentralized Recovery for Survivable Storage Systems (CMU-CS-04-119)
Creators: name: Wong, Ming-Tao
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Modern society has produced a wealth of data to preserve for the long term. Some data we keep for cultural benefit, in order to make it available to future generations, while other data we keep because of legal imperatives. One way to preserve such data is to store it using survivable storage systems. Survivable storage is distinct from reliable storage in that it tolerates confidentiality failures in which unauthorized users compromise component storage servers, as well as crash failures of servers. Thus, a survivable storage system can guarantee both the availability and the confidentiality of stored data. Research into survivable storage systems investigates the use of m-of-n threshold sharing schemes to distribute data to servers, in which each server receives a share of the data. Any m shares can be used to reconstruct the data, but any m - 1 shares reveal no information about the data. The central thesis of this dissertation is that to truly preserve data for the long term, a system that uses threshold schemes must incorporate recovery protocols able to overcome server failures, adapt to changing availability or confidentiality requirements, and operate in a decentralized manner. To support the thesis, I present the design and experimental performance analysis of a verifiable secret redistribution protocol for threshold sharing schemes. The protocol redistributes shares of data from old to new, possibly disjoint, sets of servers, such that new shares generated by redistribution cannot be combined with old shares to reconstruct the original data. The protocol is decentralized, and does not require intermediate reconstruction of the data; thus, one does not create a central point of failure or risk the exposure of the data during protocol execution. The protocol incorporates a verification capability that enables new servers to confirm that their shares can be used to reconstruct the original data.
Metamaterial Superconductors
Creators: name: Smolyaninov, Igor I.
name: Smolyaninova, Vera N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Superconductivity (cond-mat.supr-con)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Searching for natural materials exhibiting larger electron-electron interactions constitutes a traditional approach to high temperature superconductivity research. Very recently we pointed out that the newly developed field of electromagnetic metamaterials deals with the somewhat related task of dielectric response engineering on a sub-100 nm scale. Considerable enhancement of the electron-electron interaction may be expected in such metamaterial scenarios as in epsilon near zero (ENZ) and hyperbolic metamaterials. In both cases dielectric function may become small and negative in substantial portions of the relevant four-momentum space, leading to enhancement of the electron pairing interaction. This approach has been verified in experiments with aluminium-based metamaterials. Metamaterial superconductor with Tc = 3.9 K have been fabricated, that is three times that of pure aluminium (Tc = 1.2 K), which opens up new possibilities to considerably improve Tc of other simple superconductors. Taking advantage of the demonstrated success of this approach, the critical temperature of hypothetic niobium, MgB2 and H2S-based metamaterial superconductors is evaluated. The MgB2-based metamaterial superconductors are projected to reach the liquid nitrogen temperature range. In the case of an H2S-based metamaterial projected Tc appears to reach ~250 K.
description: 78 pages, 24 figures, Invited review article prepared for Nanophotonics
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Cart. 187 (11 H 72), f. 0064v
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
name: Petot, Frédéric
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: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Archives départementales de la Côte-d'Or, Cart. 187 (11 H 72), f. 0064v, 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 III, Archives départementales de la Côte-d'Or, Cart. 187 (11 H 72), f. 0064v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
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
description: Provenance: http://www.wikidata.org/entity/Q843261
Rigidity of Hamiltonian actions on Poisson manifolds
Creators: name: Miranda, Eva
name: Monnier, Philippe
name: Zung, Nguyen Tien
Publisher: name: arXiv
Year: 2011
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57D17, 57S25

description: This paper is about the rigidity of compact group actions in the Poisson context. The main resut is that Hamiltonian actions of compact semisimple type are rigid. We prove it via a Nash-Moser normal form theorem for closed subgroups of SCI-type. This Nash-Moser normal form has other applications to stability results that we will explore in a future paper. We also review some classical rigidity results for differentiable actions of compact Lie groups and export it to the case of symplectic actions of compact Lie groups on symplectic manifolds.
description: 41 pages, revised version: minor changes in the statements of Theorems 4.1, 4.6 and 4.7; The proof of Theorem 4.5 has been rewritten; Details have been added in section 6: mainly in the proof of theorem 6.8 and section 6.2.3
Particles in non-Abelian gauge potentials - Landau problem and insertion of non-Abelian flux
Creators: name: Estienne, Benoit
name: Haaker, Shanna
name: Schoutens, Kareljan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study charged spin-1/2 particles in two dimensions, subject to a perpendicular non-Abelian magnetic field. Specializing to a choice of vector potential that is spatially constant but non-Abelian, we investigate the Landau level spectrum in planar and spherical geometry, paying particular attention to the role of the total angular momentum J = L +S. After this we show that the adiabatic insertion of non-Abelian flux in a spin-polarized quantum Hall state leads to the formation of charged spin-textures, which in the simplest cases can be identified with quantum Hall Skyrmions.
description: 24 pages, 10 figures (with corrected legends)
Computational Modelling of Fuel Cells andElectrolyzers: An Overview
Creators: name: Beale, Steven
name: Hess, Steffen
name: Zhang, Shidong
Publisher: name: Forschungzentrum Jülich
Year: 2024

description: International Workshop on Sustainable Energy, Power and Propulsion, ISEPP, Noida, India, 19 Jan 2024 - 21 Jan 2024
Report on the development of a practical quantitation level for perfluorononanoic acid in drinking water
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2015

description: The decision by the Drinking Water Quality Institute to recommend an MCL for perfluorononanoic acid (PFNA) required the Testing Subcommittee to develop a drinking water Practical Quantitation Limit (PQL) for PFNA which would then be used in conjunction with the information generated by the Health Effects Subcommittee and Treatment Subcommittee in recommending the PFNA MCL.
THE DETERMINANTS OF FAMILY WORK CONFLICTS IN SMALL AND MEDIUM-SIZED ENTREPRISES
Creators: name: FEHNUI Elvine TAPEY
name: Emmanuel TCHAGANG
name: Didier AMBIANA AMBIANA
Publisher: name: Zenodo
Year: 2024

description: This paper aims to analyze the determinants factors of the conflict between work and family life of women in Cameroonian enterprises. We use models to explain conflict situations, the main antecedents of which are both social and family-based.  The survey was conducted among 408 women in companies located in several regions of the country. The data collected was processed using exploratory and confirmatory factor analyses to construct the measurement instruments, and structural equation modeling to assess the causal relationships. The main results reveal the multidimensional nature of social antecedents, and their explanatory power as a determinant of work-family conflicts, in the same way as family factors.
Stable and homogeneous SPION-infused Photo-Resins for 3D-printing magnetic hydrogels
Creators: name: Mohammed, Ali A
name: Yao, Keyu
name: Ragaisyte, Ieva
name: Crestani, Dominic
name: Myant, Connor W
name: Pinna, Alessandra
Publisher: name: The Francis Crick Institute
Year: 2024
Subjects: classificationCode: Infectious Disease
subject: Infectious Disease
classificationCode: Immunology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: Human Biology & Physiology
subject: Human Biology & Physiology
classificationCode: Model organisms
subject: Model organisms

description: 3D printing of magnetic stimuli hydrogels has shown promise in low-resolution extrusion printing but integrating superparamagnetic iron oxide nanoparticles (SPION) into water-based photo-resins has posed challenges. Rapid agglomeration and sedimentation of SPION in photo-resins require continuous mixing during printing, leading to uneven nanoparticle (NP) distribution and inconsistent magnetic actuation. Here, we optimise the use of citric acid (CA) and l-sodium ascorbate (LA) as capping agents on the SPION’s surface, before trialling them with photo-resins. Ultimately, we present a two-step approach to overcome these limitations, enabling high-resolution SLA-based 3D printing of hydrogels. By employing CA in both SPION and photo-resin preparation, we achieve a highly stable mixture that requires no agitation during printing, resulting in magnetically responsive hydrogels.
This methodology can be applied to various photo-resin formulations, ensuring uniform NP distribution and enabling the 3D printing of stimuli-responsive materials for applications in soft robotics, aquatic microswimmers, and soft actuators. The breakthrough in stable and homogenous SPION-infused photo-resins has broad implications for tissue engineering, drug delivery, and regenerative medicine, offering novel biocompatible materials with resistance to stress and deformation. This approach can be extended to other NP with poor dispersion in hydrogels, paving the way for advanced functional materials in diverse applications.
The role of artificial ponds for anuran diversity in managed areas of the Atlantic Forest
Creators: name: Preuss, Jackson
name: Dalmolin, Diego Anderson
name: Moser, Camila Fernanda
name: Brum, Diego
name: Lucas, Elaine Maria
name: Veronez, Mauricio Roberto
name: Pereira, Maria João Ramos
name: Tozetti, Alexandro Marques
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Science Policy

description: Artificial ponds can be important reproductive sites for anurans in human-disturbed habitats. However, this capacity depends on the configuration of the habitat where they are inserted. We evaluated how anuran beta diversity was influenced by the configuration of the surrounding habitat and water parameters in artificial ponds in southern Brazil. Physicochemical parameters of water and the configuration of the surrounding habitat were the elements that best explained the variation in beta diversity. However, the surrounding habitat had a predominant role in the differences between communities. The level of exposed soil was the component that best acted on the turnover component of beta diversity followed by urbanization, which highlights the impact of human presence on anuran diversity. In other words, we observed that anthropogenic changes caused changes in species composition in the evaluated ponds. Among water parameters, only phosphate was relevant for the configuration of communities. Phosphate peaks may result from sewage or fertilizer contamination, not infrequent in the region despite the low human density and the small-scale agriculture economy. Even though they are anthropogenic environments, artificial ponds can help maintain the anuran communities, but their effectiveness will depend on the presence of forest remnants and water quality.
AWARE: An algorithm for the automated characterization of EUV waves in the solar atmosphere
Creators: name: Ireland, Jack
name: Inglis, Andrew R.
name: Shih, Albert Y.
name: Christe, Steven
name: Mumford, Stuart J.
name: Hayes, Laura A.
name: Thompson, Barbara J.
name: Hughitt, V. Keith
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Extreme ultraviolet (EUV) waves are large-scale propagating disturbances observed in the solar corona, frequently associated with coronal mass ejections and flares. They appear as faint, extended structures propagating from a source region across the structured solar corona. Since their discovery, over two hundred papers discussing their properties, causes and physical nature have been published. However, despite this their fundamental properties and the physics of their interactions with other solar phenomena are still not understood. To further the understanding of EUV waves, we have constructed the Automated Wave Analysis and REduction (AWARE) algorithm for the measurement of EUV waves. AWARE is implemented in two stages. In the first stage, we use a new type of running difference image, the running difference persistence image, which enables the efficient isolation of propagating, brightening wavefronts as they propagate across the corona. In the second stage, AWARE detects the presence of a wavefront, and measures the distance, velocity and acceleration of that wavefront across the Sun. The fit of propagation models to the wave progress isolated in the first stage is achieved using the Random Sample and Consensus (RANSAC) algorithm. AWARE is tested against simulations of EUV wave propagation, and is applied to measure EUV waves in observational data from the Atmospheric Imaging Assembly (AIA). We also comment on unavoidable systematic errors that bias the estimation of wavefront velocity and acceleration. In addition, the full AWARE software suite comes with a package that creates simulations of waves propagating across the disk from arbitrary starting points.
On similarity solutions to the multidimensional aggregation equation
Creators: name: Dong, Hongjie
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study similarity solutions to the multidimensional aggregation equation $u_t+\Div(uv)=0$, $v=-\nabla K*u$ with general power-law kernels $K(x)=|x|^α,α\in (2-d,2)$. We analyze the equation in different regimes of the parameter $α$. In the case when $α\in [4-d,2)$, we give a characterization all the "first kind" radially symmetric similarity solutions. We prove that any such solution is a linear combination of a delta ring and a delta mass at the origin. On the other hand, when $α\in (2-d,4-d)$, we show that there exist multi delta-ring similarity solutions in $R^d$. In particular, our results imply that multi delta-ring similarity solutions exist in 3D if $α$ is just a little bit below 1.
description: Minor revision, 17 pages, to appear in CMP
Uncompensated Antiferromagnetic Ordering of UAu$_2$Si$_2$ Studied by $^{29}$Si-NMR
Creators: name: Tabata, C.
name: Ihara, Y.
name: Shimmura, S.
name: Miura, N.
name: Hidaka, H.
name: Yanagisawa, T.
name: Amitsuka, H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetically ordered phase of body-centered tetragonal UAu$_2$Si$_2$ was explored through $^{29}$Si-NMR experiments. The field-swept NMR spectra show asymmetric peak splitting below magnetic phase transition temperature, $T_{\rm m}$ = 20 K. This splitting is well explained by the occurrence of a magnetic order with propagation vector of $q$ = (2/3, 0, 0) and magnetic moments pointing parallel to the tetragonal [001] axis, offering evidence for uncompensated "up-up-down"-type antiferromagnetic ordering with a spontaneous [001] magnetization component. A symmetry analysis of the hyperfine-coupling tensor with phenomenological corrections including orbital and dipolar-field contributions yields the magnitude of the ordered moment to be approximately 1.4 $\pm$ 0.2 Bohr magneton per uranium ion, and evaluates the site-dependent hyperfine-coupling constants.
Data-intensive File Systems for Internet Services: A Rose by Any Other Name... (CMU-PDL-08-114)
Creators: name: Wittawat  Tantisiriroj
name: Swapnil  Patil
name: Gibson, Garth
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Data-intensive distributed file systems are emerging as a key component of large scale Internet services and cloud computing platforms. They are designed from the ground up and are tuned for specific application workloads. Leading examples, such as the Google File System, Hadoop distributed file system (HDFS) and Amazon S3, are defining this new purpose-built paradigm. It is tempting to classify file systems for large clusters into two disjoint categories, those for Internet services and those for high performance computing. In this paper we compare and contrast parallel file systems, developed for high performance computing, and data-intensive distributed file systems, developed for Internet services. Using PVFS as a representative for parallel file systems and HDFS as a representative for Internet services file systems, we configure a parallel file system into a data-intensive Internet services stack, Hadoop, and test performance with microbenchmarks and macrobenchmarks running on a 4,000 core Internet services cluster, Yahoo!'s M45. Once a number of configuration issues such as stripe unit sizes and application buffering sizes are dealt with, issues of replication, data layout and data-guided function shipping are found to be different, but supportable in parallel file systems. Performance of Hadoop applications storing data in an appropriately configured PVFS are comparable to those using a purpose built HDFS.
Kinetic description of quasi-stationary axisymmetric collisionless accretion disk plasmas with arbitrary magnetic field configurations
Creators: name: Cremaschini, Claudio
name: Miller, John C.
name: Tessarotto, Massimo
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A kinetic treatment is developed for collisionless magnetized plasmas occurring in high-temperature, low-density astrophysical accretion disks, such as are thought to be present in some radiatively-inefficient accretion flows onto black holes. Quasi-stationary configurations are investigated, within the framework of a Vlasov-Maxwell description. The plasma is taken to be axisymmetric and subject to the action of slowly time-varying gravitational and electromagnetic fields. The magnetic field is assumed to be characterized by a family of locally nested but open magnetic surfaces. The slow collisionless dynamics of these plasmas is investigated, yielding a reduced gyrokinetic Vlasov equation for the kinetic distribution function. For doing this, an asymptotic quasi-stationary solution is first determined, represented by a generalized bi-Maxwellian distribution expressed in terms of the relevant adiabatic invariants. The existence of the solution is shown to depend on having suitable kinetic constraints and conditions leading to particle trapping phenomena. With this solution one can treat temperature anisotropy, toroidal and poloidal flow velocities and finite Larmor-radius effects. An asymptotic expansion for the distribution function permits analytic evaluation of all of the relevant fluid fields. Basic theoretical features of the solution and their astrophysical implications are discussed. As an application, the possibility of describing the dynamics of slowly time-varying accretion flows and the self-generation of magnetic field by means of a \textquotedblleft kinetic dynamo effect\textquotedblright\ is discussed. Both effects are shown to be related to intrinsically-kinetic physical mechanisms.
description: Accepted version for Physics of Plasmas
Wet‐Oxidative Desulfurization as a Flexible and Greener Way for H2S Removal from Acid Gases
Creators: name: Wurm, Julian
name: Thielert, Holger
name: Von Morstein, Olaf
name: Repke, Jens-Uwe
Publisher: name: Wiley
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::660 Chemische Verfahrenstechnik::660 Chemische Verfahrenstechnik
subject: jet-zone loop reactor
subject: reactive absorption
subject: sulfur precipitation
subject: takahax process
subject: wet-oxidative gas desulfurization

description: In wet-oxidative gas desulfurization processes, absorbed H2S is directly converted to sulfur by a redox catalyst dissolved in a circulating scrubbing solution. High flexibility is achieved through the availability of different catalyst classes. In this work, a process based on the Takahax process was investigated in a pilot plant under industrially relevant conditions with coke oven gas. A stable plant operation without sulfur precipitation was achieved by a suitable choice of the operating conditions. The solid-free operating window was determined and a sulfur redissolution strategy developed.
Forecasting for stationary binary time series
Creators: name: Morvai, Gusztav
name: Weiss, Benjamin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The forecasting problem for a stationary and ergodic binary time series $\{X_n\}_{n=0}^{\infty}$ is to estimate the probability that $X_{n+1}=1$ based on the observations $X_i$, $0\le i\le n$ without prior knowledge of the distribution of the process $\{X_n\}$. It is known that this is not possible if one estimates at all values of $n$. We present a simple procedure which will attempt to make such a prediction infinitely often at carefully selected stopping times chosen by the algorithm. We show that the proposed procedure is consistent under certain conditions, and we estimate the growth rate of the stopping times.
Gravitation waves from QCD and electroweak phase transitions
Creators: name: Chen, Yidian
name: Huang, Mei
name: Yan, Qi-Shu
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the gravitation waves produced from QCD and electroweak phase transitions in the early universe by using a 5-dimension holographic QCD model and a holographic technicolor model. The dynamical holographic QCD model is to describe the pure gluon system, where a first order confinement-deconfinement phase transition can happen at the critical temperature around 250 ${\rm MeV}$. The minimal holographic technicolor model is introduced to model the strong dynamics of electroweak, it can give a first order electroweak phase transition at the critical temperature around 100-360 ${\rm GeV}$. We find that for both GW signals produced from QCD and EW phase transitions, in the peak frequency region, the dominant contribution comes from the sound waves, while away from the peak frequency region the contribution from the bubble collision is dominant. The peak frequency of gravitation wave determined by the QCD phase transition is located around $10^{-7}$ Hz which is within the detectability of FAST and SKA, and the peak frequency of gravitational wave predicted by EW phase transition is located at $0.002-0.007$ Hz, which might be detectable by BBO, DECIGO, LISA and ELISA.
Data Mining on an OLTP System (Nearly) for Free (CMU-CS-99-151)
Creators: name: Riedel, Erik
name: Faloutsos, Christos
name: Ganger, Gregory R.
name: Nagle, David F.
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper proposes a scheme for scheduling disk requests that takes advantage of the ability of high-level functions to operate directly at individual disk drives. We show that such a scheme makes it possible to support a Data Mining workload on an OLTP system almost for free: there is only a small impact on the throughput and response time of the existing workload. Specifically, we show that an OLTP system has the disk resources to consistently provide one third of its sequential bandwidth to a background Data Mining task with close to zero impact on OLTP throughput and response time at high transaction loads. At low transaction loads, we show much lower impact than observed in previous work. This means that a production OLTP system can be used for Data Mining tasks without the expense of a second dedicated system. Our scheme takes advantage of close interaction with the on-disk scheduler by reading blocks for the Data Mining workload as the disk head "passes over" them while satisfying demand blocks from the OLTP request stream. We show that this scheme provides a consistent level of throughput for the background workload even at very high foreground loads. Such a scheme is of most benefit in combination with an Active Disk environment that allows the background Data Mining application to also take advantage of the processing power and memory available directly on the disk drives.
Graded bundles and homogeneity structures
Creators: name: Grabowski, Janusz
name: Rotkiewicz, Mikolaj
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C15, 53C10, 55R10, 58A32, 58A50, 18D05

description: We introduce the concept of a graded bundle which is a natural generalization of the concept of a vector bundle and whose standard examples are higher tangent bundles T^nQ playing a fundamental role in higher order Lagrangian formalisms. Graded bundles are graded manifolds in the sense that we can choose an atlas whose local coordinates are homogeneous functions of degrees 0,1,...,n. We prove that graded bundles have a convenient equivalent description as homogeneity structures, i.e. manifolds with a smooth action of the multiplicative monoid of non-negative reals. The main result states that each homogeneity structure admits an atlas whose local coordinates are homogeneous. Considering a natural compatibility condition of homogeneity structures we formulate, in turn, the concept of a double (r-tuple, in general) graded bundle - a broad generalization of the concept of a double (r-tuple) vector bundle. Double graded bundles are proven to be locally trivial in the sense that we can find local coordinates which are simultaneously homogeneous with respect to both homogeneity structures.
description: 19 pages, the revised version to be published in J. Geom. Phys