cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Operator Cutoff Regularization and Renormalization Group in Yang-Mills Theory
Creators: name: Liao, Sen-Ben
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive a manifestly gauge invariant low energy blocked action for Yang-Mills theory using operator cutoff regularization, a prescription which renders the theory finite with a regulating smearing function constructed for the proper-time integration. By embedding the momentum cutoff scales in the smearing function, operator cutoff formalism allows for a direct application of Wilson-Kadanoff renormalization group to Yang-Mills theory in a completely gauge symmetry preserving manner. In particular, we obtain a renormalization group flow equation which takes into consideration the contributions of higher dimensional operators and provides a systematic way of exploring the influence of these operators as the strong coupling, infrared limit is approached.
description: 36 pages in plain TeX, no figures
Neutrino oscillations in magnetized media and implications for the pulsar velocity puzzle
Creators: name: Grasso, Dario
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: After a brief presentation of the general techniques used to determine neutrino potentials in a magnetized medium I will discuss MSW resonant oscillations of active and sterile neutrinos in such environment. Using my results I will reconsider the viability of a solution of the pulsar velocity puzzle based on such a kind of neutrino oscillations.
description: 6 pages, LaTeX, macro: sprocl.sty
Scalable Performance Analysis of Massively Parallel Stochastic Systems
Creators: name: Hayden, Richard Alexander
Publisher: name: Imperial College London
Year: 2011

description: The accurate performance analysis of large-scale computer and communication systems is directly inhibited by an exponential growth in the state-space of the underlying Markovian performance model. This is particularly true when considering massively-parallel architectures such as cloud or grid computing infrastructures. Nevertheless, an ability to extract quantitative performance measures such as passage-time distributions from performance models of these systems is critical for providers of these services. Indeed, without such an ability, they remain unable to offer realistic end-to-end service level agreements (SLAs) which they can have any confidence of honouring. Additionally, this must be possible in a short enough period of time to allow many different parameter combinations in a complex system to be tested. If we can achieve this rapid performance analysis goal, it will enable service providers and engineers to determine the cost-optimal behaviour which satisfies the SLAs. In this thesis, we develop a scalable performance analysis framework for the grouped PEPA stochastic process algebra. Our approach is based on the approximation of key model quantities such as means and variances by tractable systems of ordinary differential equations (ODEs). Crucially, the size of these systems of ODEs is independent of the number of interacting entities within the model, making these analysis techniques extremely scalable. The reliability of our approach is directly supported by convergence results and, in some cases, explicit error bounds. We focus on extracting passage-time measures from performance models since these are very commonly the language in which a service level agreement is phrased. We design scalable analysis techniques which can handle passages defined both in terms of entire component populations as well as individual or tagged members of a large population. A precise and straightforward specification of a passage-time service level agreement is as important to the performance engineering process as its evaluation. This is especially true of large and complex models of industrial-scale systems. To address this, we introduce the unified stochastic probe framework. Unified stochastic probes are used to generate a model augmentation which exposes explicitly the SLA measure of interest to the analysis toolkit. In this thesis, we deploy these probes to define many detailed and derived performance measures that can be automatically and directly analysed using rapid ODE techniques. In this way, we tackle applicable problems at many levels of the performance engineering process: from specification and model representation to efficient and scalable analysis.
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Cart. 166 (11 H 64), 136 folios, f. 0055v
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: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 166 (11 H 64), 136 folios, f. 0055v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 166 (11 H 64), 136 folios, f. 0055v, 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
Ashtekar's formulation for $N=1,2$ supergravities as "constrained" BF theories
Creators: name: Ezawa, Kiyoshi
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is known that Ashtekar's formulation for pure Einstein gravity can be cast into the form of a topological field theory, namely the $SU(2)$ BF theory, with the B-fields subject to an algebraic constraint. We extend this relation between Ashtekar's formalism and BF theories to $N=1$ and $N=2$ supergravities. The relevant gauge groups in these cases become graded Lie groups of $SU(2)$ which are generated by left-handed local Lorentz transformations and left-supersymmetry transformations. As a corollary of these relations, we provide topological solutions for $N=2$ supergravity with a vanishing cosmological constant. It is also shown that, due to the algebraic constraints, the Kalb-Ramond symmetry which is characteristic of BF theories breaks down to the symmetry under diffeomorphisms and right-supersymmetry transformations.
description: 26 pages Latex (references added)
First-principles calculations of iron-hydrogen reactions in silicon
Creators: name: Santos, Paulo
name: Coutinho, José
name: Öberg, Sven
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Controlling the contamination of silicon materials by iron, especially dissolved interstitial iron (Fe$_{\mathrm{i}}$), is a longstanding problem with recent developments and several open issues. Among these we have the question whether hydrogen can assist iron diffusion, or if significant amounts of substitutional iron (Fe$_{\mathrm{s}}$) can be created. Using density functional calculations we explore the structure, formation energies, binding energies, migration, and electronic levels of several FeH complexes in Si. We find that a weakly bound Fe$_{\mathrm{i}}$H pair has a migration barrier close to that of isolated Fe$_{\mathrm{i}}$ and a donor level at $E_{\mathrm{v}}+0.5$~eV. Conversely, Fe$_{\mathrm{i}}$H$_{2}(0/+)$ is estimated at $E_{\mathrm{v}}+0.33$~eV. These findings suggest that the hole trap at $E_{\mathrm{v}}+0.32$~eV measured by capacitance measurements should be assigned to Fe$_{\mathrm{i}}$H$_{2}$ . Fe$_{\mathrm{s}}$H-related complexes show only deep acceptor activity and are expected to have little effect on minority carrier life-time in $p$-type Si. The opposite conclusion can be drawn for $n$-type Si. We find that while in H-free material Fe$_{\mathrm{i}}$ defects have lower formation energy than Fe$_{\mathrm{s}}$, in hydrogenated samples Fe$_{\mathrm{s}}$-related defects become considerably more stable. This would explain the observation of an EPR signal attributed to a Fe$_{\mathrm{s}}$H-related complex in hydrogenated Si, which was quenched from above 1000$^{\circ}$C to iced-water temperature.
Correlation functions for M^N/S_N orbifolds
Creators: name: Lunin, Oleg
name: Mathur, Samir D.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a method for computing correlation functions of twist operators in the bosonic 2-d CFT arising from orbifolds M^N/S_N, where M is an arbitrary manifold. The path integral with twist operators is replaced by a path integral on a covering space with no operator insertions. Thus, even though the CFT is defined on the sphere, the correlators are expressed in terms of partition functions on Riemann surfaces with a finite range of genus g. For large N, this genus expansion coincides with a 1/N expansion. The contribution from the covering space of genus zero is `universal' in the sense that it depends only on the central charge of the CFT. For 3-point functions we give an explicit form for the contribution from the sphere, and for the 4-point function we do an example which has genus zero and genus one contributions. The condition for the genus zero contribution to the 3-point functions to be non--vanishing is similar to the fusion rules for an SU(2) WZW model. We observe that the 3-point coupling becomes small compared to its large N limit when the orders of the twist operators become comparable to the square root of N - this is a manifestation of the stringy exclusion principle.
description: 59 pages, Latex, 1 figure; typos corrected
MOESM1 of Enrichment of Genetic Variants for Rheumatoid Arthritis within T-Cell and NK-Cell Enhancer Regions
Creators: name: Freudenberg, Jan
name: Gregersen, Peter
name: Wentian Li
Publisher: name: figshare
Year: 2015
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Supplementary material, approximately 229 KB.
Progressive collapse response of steel and composite buildings
Creators: name: Stylianidis, Panagiotis
Publisher: name: Imperial College London
Year: 2011

description: Subsequent to the World Trade Centre collapses in 2001, general interest into structural robustness and progressive collapse has been significantly heightened. It is recognised that the current prescriptive rules employed in the design of building structures to resist progressive collapse need to be replaced by performance-based approaches. A continuing research program at Imperial College London aims at the development of a complete design method that will address the basic features of progressive collapse whilst being tractable in terms of complexity for routine use in practice. An important step towards that objective is the proper treatment and understanding of the fundamental mechanics of the problem. The current study is motivated by that requirement and seeks to build on previous developments at Imperial to explore the progressive collapse response of steel and composite buildings on a quantitative basis. At first, the study is dedicated to the development of a simplified model for representation of the connection behaviour. The model is incorporated into a slope-deflection approach and an analytical method for prediction of the nonlinear static response of steel and composite beams following column removal – i.e. a common design scenario for progressive collapse – is derived. The method is carefully validated and applied in a detailed study of the response of axially restrained beams in progressive collapse, where the most important structural parameters and their effects on performance are identified. Based on those outcomes, the behaviour of bare steel and composite grillage systems following sudden column loss is subsequently appraised. It is concluded that progressive collapse resistance depends on the interplay between the connection moment capacities and ductility. Performance may also be enhanced by compressive arching action in the presence of axial restraint; however, for average values of connection ductility, failure typically occurs prior to the development of significant tensile catenary action. Therefore, it is suggested that design methods for progressive collapse should be primarily oriented towards the prediction of appropriate values for the connection moment capacities.
Imperfect Diffusion-Controlled Reactions
Creators: name: Grebenkov, Denis S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: This chapter aims at emphasizing the crucial role of partial reactivity of a catalytic surface or a target molecule in diffusion-controlled reactions. We discuss various microscopic mechanisms that lead to imperfect reactions, the Robin boundary condition accounting for eventual failed reaction events, and the construction of the underlying stochastic process, the so-called partially reflected Brownian motion. We show that the random path to the reaction event can naturally be separated into the transport step toward the target, and the exploration step near the target surface until reaction. While most studies are focused exclusively on the transport step (describing perfect reactions), the exploration step, consisting is an intricate combination of diffusion-mediated jumps between boundary points, and its consequences for chemical reactions remain poorly understood. We discuss the related mathematical difficulties and recent achievements. In particular, we derive a general representation of the propagator, show its relation to the Dirichlet-to-Neumann operator, and illustrate its properties in the case of a flat surface.
Perturbative and Non-Perturbative Results for $N=2$ Heterotic Strings
Creators: name: Cardoso, G. Lopes
name: Lust, D.
name: Mohaupt, T.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we summarize our recent work about perturbative and non-perturbative effects in four-dimensional heterotic strings with $N=2$ space-time supersymmetry.
description: Contribution for the Proceedings of the `Spring Workshop on String Theory, Gauge Theory and Quantum Gravity', Trieste, April 1995
Additional file 4: of A transdisciplinary team approach to scoping reviews: the case of pediatric polypharmacy
Creators: name: Bakaki, Paul
name: Staley, Jennifer
name: Rujia Liu
name: Dawson, Neal
name: Golchin, Negar
name: Horace, Alexis
name: Johnson, Hannah
name: Waldron, Jennifer
name: Winterstein, Almut
name: Kleinman, Lawrence
name: Bolen, Shari
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Inter-rater Concordance Measures for Screening on Title & Abstract, and Full Text. Details of percent agreement and kappa statistics for screening title & abstracts as well as full texts. (DOCX 19 kb)
RFQ design for PAMELA injector
Creators: name: Easton, Matthew Joseph
Publisher: name: Imperial College London
Year: 2011

description: This thesis describes a new design method for a radio frequency quadrupole (RFQ), and its application to the first stage of acceleration for carbon ions in the PAMELA injector. Radiotherapy is a valuable form of cancer treatment, but current methods using photons or electrons make it difficult to deliver an adequate dose to the tumour without damaging healthy surrounding tissue and organs. Charged hadron beams, such as protons and carbon, deposit most of the dose at the Bragg peak, which can be aligned with the tumour. This allows higher doses to treat the cancer while minimising damage to healthy surrounding tissue and organs. The PAMELA project (part of the BASROC consortium) aims to design new charged particle therapy (CPT) facilities using non-scaling fixed-field alternating-gradient accelerators (ns-FFAGs). This new technology offers significant advantages over both cyclotrons and synchrotrons for CPT. The injector for the PAMELA FFAG accelerator includes separate pre-acceleration chains for protons and carbon ions, culminating in a shared injection system into the first FFAG ring. Carbon ions are pre-accelerated by an RFQ and a short linear accelerator (linac). This thesis details the creation of an integrated system of software packages and custom code, which facilitates the design of RFQ vane tips, utilising computer-aided design (CAD) models for both simulation and manufacture, accurate multi-physics modelling of the electric field and particle tracking simulations. This design process is described, along with benchmark results for the Front- End Test Stand (FETS ) RFQ and application of the code in optimising a new RFQ design for PAMELA.
title: ADCO, Ordre cistercien : comptes (1403-1423) (11 H 1161), f. 00006
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: comptes

description: Ordre cistercien : comptes (1403-1423), Archives départementales de la Côte-d'Or, (11 H 1161). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Ordre cistercien : comptes (1403-1423), Archives départementales de la Côte-d'Or, (11 H 1161), f. 00006, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
title:  Intertexto y lectura: Les Gommes de Robbe-Grillet y Edipo rey
Creators: name: Fernández Cardo, Jose María
Publisher: name: Roma Tre University
publisherIdentifier: https://ror.org/05vf0dg29
publisherIdentifierScheme: ROR
Year: 2025

description: En esta contribución se pasa revista a la relación intertextual establecida desde principios de la década de los sesenta por Bruce Morrissette entre la primera novela de Robbe-Grillet, Les Gommes (1953), y el texto de Sófocles Edipo rey, así como a las consecuencias de esa interpretación en la recepción italiana y española de la misma. Sin descartarla plenamente, se trata aquí, en este trabajo, de relativizar su significado en conexión con el resto de la obra novelística de Robbe-Grillet, que, desde los albores del siglo XXI, ha entrado quizás en una nueva fase de lectura.

Questo contributo esamina il rapporto intertestuale stabilito a partire dagli anni Sessanta da Bruce Morrissette tra il primo romanzo di Robbe-Grillet, Les Gommes (1953), e l’Edipo Re di Sofocle, nonché le conseguenze di tale interpretazione nella ricezione italiana e spagnola dello stesso. Senza scartarlo del tutto, si propone di relativizzarne il significato alla luce della opera narrativa successiva di Robbe-Grillet, opera che a partire dai primi anni del XXI secolo è forse entrata in una nuova fase di lettura.

This contribution reviews the intertextual relationship established since the early 1960s by Bruce Morrissette between Robbe-Grillet’s first novel, Les Gommes (1953), and Sophocles’s Oedipus Rex, as well as the consequences of that interpretation in the Italian and Spanish reception of the novel. Without completely discarding it, it is suggested that the significance of this relationship ought to be reconsidered in the light of Robbe-Grillet’s subsequent narrative output which, since the beginning of the 21st century, has undergone a general reassessment.
description: ἀγλαὰ δῶρα. Studi miscellanei in onore di Dora Faraci
title: Reconceptualising Security in the Law of the European Union
Creators: name: Mitsilegas, Valsamis
Publisher: name: European Papers (www.europeanpapers.eu)
Year: 2025
Subjects: subject: Border Security
subject: Preventive Justice
subject: Frontex
subject: Eurosur
subject: Operation Sophia
subject: Operation Irini

description: European Papers - A Journal on Law and Integration, 2024 9(3), 1438-1473
description: I. Introduction. – II. Preventive security. – II.1. Criminal law. – II.2. Surveillance. – II.3. Border control. – III. Externalised security. – III.1. Globalised security. – III.2. Transatlantic security. – IV. Privatised security. – IV.1. Privatised security as a Rule of Law challenge. – IV.2. Privatised security as a means of upholding the rule of law. – V. Border security. – V.1. Immigration Law as Security Law. – V.2. CFSP/CSDP as Immigration Law. – V.3. Security Law as Immigration Law. – VI. Conclusion. Reconceptualising security in EU Law.
description: This Article will examine the concept of public security in EU law by focusing on the production of security by the European Union. The starting point will be the production of what has been characterised as “internal security” namely measures on criminal justice and law enforcement co-operation. The Article aims to analyse critically the evolution of EU security law as a response to a number of recent political and societal trends, leading to the qualitative and quantitative expansion of the EU security acquis. The Article will focus on four major developments: the shift towards prevention and pre-emption in EU security law; the emergence of the European Union as a global security actor; the impact of privatisation and digitalisation on security; and the blurring of boundaries between immigration law and security law through the prevalence of the policy agenda of border security. The Article will demonstrate how, through these developments, the realm of security has expanded in EU law challenging further the values of the Union, in particular fundamental rights and the rule of law. The Article will thus argue in favour of a reconceptualisation of security focusing on legality and the rule of law.
title: 01_0609
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Pressure Bifurcation Phenomenon on Supersonic Blowing Trailing Edges
Creators: name: Martinez-Cava, Alejandro
name: Wang, Yinzhu
name: de Vicente, Javier
name: Valero, Eusebio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Turbine blades operating in transonic-supersonic regime develop a complex shock wave system at the trailing edge, a phenomenon that leads to unfavorable pressure perturbations downstream and can interact with other turbine stages. Understanding the fluid behavior of the area adjacent to the trailing edge is essential in order to determine the parameters that have influence on these pressure fluctuations. Colder flow, bled from the high-pressure compressor, is often purged at the trailing edge to cool the thin blade edges, affecting the flow behavior and modulating the intensity and angle of the shock waves system. However, this purge flow can sometimes generate non-symmetrical configurations due to a pressure difference that is provoked by the injected flow. In this work, a combination of RANS simulations and global stability analysis is employed to explain the physical reasons of this flow bifurcation. Analyzing the features that naturally appear in the flow and become dominant for some value of the parameters involved in the problem, an anti-symmetrical global mode, related to the sudden geometrical expansion of the trailing edge slot, is identified as the main mechanism that forces the changes in the flow topology.
description: Submitted to AIAA Journal
Constraints on the composition, magnetization, and radiative efficiency in jet of blazar
Creators: name: Fan, Xu-Liang
name: Wu, Qingwen
name: Liao, Neng-Hui
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The composition and energy dissipation in jets are two of the fundamental questions of jet physics that are not fully understood. In this paper, we attempt to constrain the composition, magnetization as well as radiative efficiency for blazar with the recently released low-frequency radio catalog of the TIFR GMRT Sky Survey at 150 MHz. The jet power estimated from the low-frequency radio emission is much lower than that derived from spectral energy distribution fitting assuming one proton per electron. Assuming the jet power estimated from low-frequency radio emission is physical, the fraction of electron/positron pairs can be constrained with $n_{\rm pairs}/n_{\rm p} \sim 10$. By comparing the power carried by magnetic field and radiation with the jet power estimated from the low-frequency radio emission, we find both relatively high magnetization parameter of $σ\sim 0.5$ and radiative efficiency of $η\sim 0.4$ in the dissipation region of blazars. These results suggest that the magnetic reconnection processes may play an important role in the energy dissipation of blazars. We also explore the connection between these three parameters ($n_{\rm pairs}/n_{\rm p}$, $σ$, and $η$) and the black hole mass, disk luminosity as well as Eddington ratio. No significant correlation is found, except that $σ$ shows possible correlation with disk luminosity.
description: accepted for publication in The Astrophysical Journal. 10 pages, 3 figures, 2 table
Quantum spin chain with "soliton non-preserving" boundary conditions
Creators: name: Doikou, Anastasia
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the case of an integrable quantum spin chain with "soliton non-peserving" boundary conditions. This is the first time that such boundary conditions have been considered in the spin chain framework. We construct the transfer matrix of the model, we study its symmetry and we find explicit expressions for its eigenvalues. Moreover, we derive a new set of Bethe ansatz equations by means of the analytical Bethe ansatz method.
description: 12 pages, LaTeX, two appendices added, minor corrections
Strings from $N=2$ Gauged Wess-Zumino-Witten Models
Creators: name: Ragoucy, E.
name: Sevrin, A.
name: Sorba, P.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an algebraic approach to string theory. An embedding of $sl(2|1)$ in a super Lie algebra together with a grading on the Lie algebra determines a nilpotent subalgebra of the super Lie algebra. Chirally gauging this subalgebra in the corresponding Wess-Zumino-Witten model, breaks the affine symmetry of the Wess-Zumino-Witten model to some extension of the $N=2$ superconformal algebra. The extension is completely determined by the $sl(2|1)$ embedding. The realization of the superconformal algebra is determined by the grading. For a particular choice of grading, one obtains in this way, after twisting, the BRST structure of a string theory. We classify all embeddings of $sl(2|1)$ into Lie super algebras and give a detailed account of the branching of the adjoint representation. This provides an exhaustive classification and characterization of both all extended $N=2$ superconformal algebras and all string theories which can be obtained in this way.
description: 50 pages, LaTeX
title: Regelungskonzept für eine schadstoffarme Gasturbinenbrennkammer
Creators: name: Adamy, Jürgen
name: Schwane, Ulf
name: Kiendl, Harro
name: Altemark, Detlef
name: Saul, Achim
name: Adomeit, Bernhard
Publisher: name: De Gruyter
Year: 2021

description: Den Gasturbinen wurde wegen ihres wachsenden Marktanteils in den letzten Jahren besondere Aufmerksamkeit geschenkt. Neben der Verbesserung des Wirkungsgrades wurden Entwicklungen zur Minimierung der Schadstoffemissionen vorangetrieben. Das Minderungspotential ist bei der Verwendung von Brenngasen der öffentlichen Gasversorgung besonders hoch. Während bei konventionellen Brennkammern eine Regelung der Verbrennung nicht notwendig ist, sind zur vollen Ausnutzung des Schadstoffreduktionspotentials und für einen sicheren und zuverlässigen Betrieb der Gasturbine neue Regelungskonzepte erforderlich. In dieser Arbeit wird ein Regelungskonzept für eine extrem schadstoffarme Gasturbinenbrennkammer für den Betrieb mit Erdgas vorgestellt. Die Regelung ist als Temperaturregelung konzipiert und den speziellen Anforderungen des Gasturbinenbetriebs angepaßt. Dabei wird die meßtechnisch schwer erfaßbare Flammentemperatur aus der gemessenen Luftzahl (λ-Wert) unter Annahme eines adiabaten Verbrennungsablaufs mittels der Wärmebilanz berechnet. Als Grundlage für den Entwurf des Regelungssystems wird für den Brenner und die angrenzenden Prozesse ein Modell erstellt. Das Regelungskonzept basiert auf drei wesentlichen Komponenten: Erstens wird die Zufuhr von Verbrennungsluft schnell, aber ungenau vorgesteuert und unterlagert nachgeregelt. Zweitens wird die Genauigkeit durch eine langsame überlagerte Temperaturregelung verbessert. Drittens wird die Genauigkeit durch eine Adaption weiter gesteigert. Die Effizienz des Regelungskonzeptes wird anhand von Simulationen sowie anhand von Versuchen an einem Brennerprototyp demonstriert.
Sidebands Due to Quasi-periodic Oscillations in 4U 1626-67
Creators: name: Kommers, J. M.
name: Chakrabarty, D.
name: Lewin, W. H. G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The low-mass X-ray binary pulsar 4U 1626-67 shows 0.048 Hz quasi-periodic oscillations (QPOs) and red noise variability as well as coherent pulsations at the 0.130 Hz neutron star spin frequency. Power density spectra of observations made with the Rossi X-ray Timing Explorer show significant sidebands separated from the pulsar spin frequency (and its harmonics) by the QPO frequency. These show that the instantaneous amplitude of the coherent pulsations is modulated by the amplitude of the QPOs. This phenomenon is expected in models such as the magnetospheric beat frequency model where the QPOs originate near the polar caps of the neutron star. In the 4--8 keV energy range, however, the lower-frequency sidebands are significantly stronger than their higher-frequency complements; this is inconsistent with the magnetospheric beat frequency model. We suggest that the 0.048 Hz QPOs are instead produced by a structure orbiting the neutron star at the QPO frequency. This structure crosses the line of sight once per orbit and attenuates the pulsar beam, producing the symmetric (amplitude modulation) sidebands. It also reprocesses the pulsar beam at the beat frequencies between the neutron star spin frequency and the QPOs, producing the excess variability observed in the lower-frequency sidebands. Quite independently, we find no evidence that the red noise variability modulates the amplitude of the coherent pulsations. This is also in contrast to the expectations of the magnetospheric beat frequency model and differs from the behavior in some high-mass X-ray binary pulsars.
description: 8 pages, 3 figures, AAS macros v4.0. To appear in ApJ Letters
MOESM1 of Oncogenic Role of the Ec Peptide of the IGF-1Ec Isoform in Prostate Cancer
Creators: name: Armakolas, Athanasios
name: Kaparelou, Maria
name: Dimakakos, Andreas
name: Papageorgiou, Efstathia
name: Armakolas, Nikolaos
name: Antonopoulos, Athanasios
name: Petraki, Constantina
name: Lekarakou, Maria
name: Lelovas, Pavlos
name: Stathaki, Martha
name: Constantinos Psarros
name: Donta, Ismene
name: Galanos, Panos
name: Msaouel, Paul
name: Vassilis Gorgoulis
name: Koutsilieris, Michael
Publisher: name: figshare
Year: 2015
Subjects: subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy

description: Supplementary material, approximately 1.87 MB.
Dust-Gas Scaling Relations and OH Abundance in the Galactic ISM
Creators: name: Nguyen, Hiep
name: Dawson, J. R.
name: Miville-Deschênes, M. -A.
name: Tang, Ningyu
name: Li, Di
name: Heiles, Carl
name: Murray, Claire E.
name: Stanimirović, Snežana
name: Gibson, Steven J.
name: McClure-Griffiths, N. M.
name: Troland, Thomas
name: Bronfman, L.
name: Finger, R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observations of interstellar dust are often used as a proxy for total gas column density $N_\mathrm{H}$. By comparing $\textit{Planck}$ thermal dust data (Release 1.2) and new dust reddening maps from Pan-STARRS 1 and 2MASS (Green et al. 2018), with accurate (opacity-corrected) HI column densities and newly-published OH data from the Arecibo Millennium survey and 21-SPONGE, we confirm linear correlations between dust optical depth $τ_{353}$, reddening $E(B{-}V)$ and the total proton column density $N_\mathrm{H}$ in the range (1$-$30)$\times$10$^{20}$cm$^{-2}$, along sightlines with no molecular gas detections in emission. We derive an $N_\mathrm{H}$/$E(B{-}V)$ ratio of (9.4$\pm$1.6)$\times$10$^{21}$cm$^{-2}$mag$^{-1}$ for purely atomic sightlines at $|b|$$>$5$^{\circ}$, which is 60$\%$ higher than the canonical value of Bohlin et al. (1978). We report a $\sim$40$\%$ increase in opacity $σ_{353}$=$τ_{353}$/$N_\mathrm{H}$, when moving from the low column density ($N_\mathrm{H}$$$5$\times$10$^{20}$cm$^{-2}$) regime, and suggest that this rise is due to the evolution of dust grains in the atomic ISM. Failure to account for HI opacity can cause an additional apparent rise in $σ_{353}$, of the order of a further $\sim$20$\%$. We estimate molecular hydrogen column densities $N_{\mathrm{H}_{2}}$ from our derived linear relations, and hence derive the OH/H$_2$ abundance ratio of $X_\mathrm{OH}$$\sim$1$\times$10$^{-7}$ for all molecular sightlines. Our results show no evidence of systematic trends in OH abundance with $N_{\mathrm{H}_{2}}$ in the range $N_{\mathrm{H}_{2}}$$\sim$(0.1$-$10)$\times$10$^{21}$cm$^{-2}$. This suggests that OH may be used as a reliable proxy for H$_2$ in this range, which includes sightlines with both CO-dark and CO-bright gas.
description: The revised manuscript is accepted for publication in The Astrophysical Journal
Oral history interview with Margaret Snyder, 2002
Publisher: name: Columbia University
Year: 2020
Subjects: Women's rights
Sex discrimination against women
Feminism
Women in development--Africa

description: Born in Syracuse, New York; description of childhood, family, and influences. Candid description of early influences of inequality for women in the workplace, social justice, and economic justice. High school volunteer work and influence of the thought process of the Young Christian Students (YCS); subsequent education at the College of New Rochelle in New York, founding of the Young Christian Workers in Syracuse; followed by graduate school at Catholic University in Washington.. Effects of the Depression and unemployment in the 1930s; WWII era. Held the title of Dean of Women at Le Moyne College in Syracuse; differentiation between feminists and "professional women." Experience of racial inequality and injustice in Washington led to the formation of her thesis on the Equal Rights Amendment (ERA) and interest in the work of Dorothy Day, the Baroness Catherine de Hueck, and the Grail Movement. The Kenya National Union of Teachers and the International Union of Teachers; University of Botswana Lesotho, and Swaziland (UBLS); African-American Institute in New York. Work in Kenya with the global women's movement and Maendeleo Ya Wanawake Organization (MYWO); Commission on the Status of Women (CSW); Women's Africa Committee (WAC)
Synthesis of Semiconducting Polymers for use in Organic Electronics
Creators: name: Donaghey, Jenny E.
Publisher: name: Imperial College London
Year: 2012

description: A series of novel semiconducting co-polymers based on known, fused aromatic monomers (dibenzosilole, dithienosilole and dithienopyrrole) were synthesized for use in organic field effect transistor (OFET) devices. The fused monomers were copolymerized with triarylamine and thienothiophene units to give a series of six donor polymers. Their electronic energy levels were probed by UV-Vis and photoelectron spectroscopy, and predictions regarding their performance were drawn from this information. Two polymers were tested in OFETs and conclusions were made concerning the relationship between structure and performance. Four donor-acceptor type polymers were synthesized using dithienopyrrole as the electron rich unit. This monomer was copolymerized with benzothiadiazole, difluorobenzothiadiazole, thienopyrrolodione and 1,1’-bithienopyrrolodione. These low band gap polymers were tested as the donor polymer in polymer:fullerene BHJ devices. A novel monomer with long branched alkyl substituents, based on the extended fused-ring system indacenodithiophene (IDT), was synthesized. The nitrogen analogue of this monomer (NIDT) was of interest as its performance could be compared to the carbon and silicon versions of IDT. A route to NIDT was devised and then it was polymerized with four electron poor monomers. The energy levels were estimated by UV-Vis and photoelectron spectroscopy, followed by testing of the materials in OFET and OPV devices. Those with the lowest lying HOMO levels performed best in OPVs. Another series of NIDT containing polymers were synthesized, designed specifically for use in OFET devices. The aim was to produce polymers with highly planar backbones which would form ordered domains and enhance hole transport. An NIDT monomer was synthesized with linear hexadecyl substituents in order to improve π-stacking. The linear NIDT monomer was then copolymerized with thiophene, thienothiophene, thienopyrrolodione and diketopyrrolopyrrole. It was found that the diketopyrrolopyrrole containing polymer, performed best in OFETs and the molecular weight played a large role in how a polymer performed.
Low-scale supergravity inflation with R-symmetry
Creators: name: German, G.
name: de la Macorra, A.
name: Mondragon, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a supergravity model of inflation with R-symmetry and a single scalar field, the inflaton, slowly rolling away from the origin. The scales of inflation can be as low as the supersymmetry breaking scale of 10^10 GeV or even the electroweak scale of 10^3 GeV which could be relevant in the context of theories with submillimiter dimensions. Exact analytical solutions are presented and a comparison with related models is given.
description: 11 pages, 3 figures; added discussion and references in section 2; corrected Eqs. 24 and 26; minor corrections in the table and figures; one fig. added in section 1. Accepted for publication in Physics Letters B
Collision-dominated conductance in clean 2D metals
Creators: name: Uzair, A.
name: Sabeeh, K.
name: Mueller, Markus
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the temperature-dependent corrections to the conductance due to electron-electron (e-e) interactions in clean two-dimensional conductors, such as lightly doped graphene or other Dirac matter. We use semiclassical Boltzmann kinetic theory to solve the problem of collision-dominated transport between reflection-free contacts. Time-reversal symmetry and the kinematic constraints of scattering in two dimensions (2D) ensure that inversion-odd and inversion-even distortions of the quasiparticle distribution relax with parametrically different rates at low temperature. This entails the surprising result that at lowest temperatures the conductance of very long samples tends to the noninteracting, ballistic conductance, despite the relaxation of the quasiparticle distribution to a drifting equilibrium. The relative correction to the conductance depends on the ratio of relaxation rates of even and odd modes and scales as delta G/G_{ballistic}~(T/E_F)[Log(E_F/T)]^{1/2}, in stark contrast to the behavior in other dimensionalities. This holds generally in 2D systems with simply connected and convex but otherwise arbitrary Fermi surfaces, as long as e-e scattering processes are dominant and umklapp scattering is negligible. These results are especially relevant to the bulk of wide and long suspended high-mobility graphene sheets.
description: 18 pages, 2 figures, 68 references
Beraba angeli Garcia, Botero & Martinez 2019
Creators: name: Montes-Guerra, Lady
name: García, Kimberly
name: Martínez-Hernández, Neis José
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Beraba
Beraba angeli

description: Beraba angeli García, Botero & Martínez, 2019 (Fig. 21)
Specimens examined. COLOMBIA, Sucre: Corozal (Las Llanadas, 9°09’23.14”N, 75°16’55.63”W), 134 m, 1 female, 23.IV.2020, Sierra O. leg. (MPUJ _ ENT0091081).
Geographical distribution. This species is known only from Colombia (Bolívar). A new department record from Sucre (Colombia) is added.
description: Published as part of Montes-Guerra, Lady, García, Kimberly & Martínez-Hernández, Neis José, 2025, Eburiini (Coleoptera, Cerambycidae, Cerambycinae) from the Colombian Caribbean: description of a new species of Beraba Martins, 1997 and new geographical records, pp. 426-436 in Zootaxa 5620 (3) on page 433, DOI: 10.11646/zootaxa.5620.3.2, http://zenodo.org/record/15219750
Counting and enumerating in first-order team logics
Creators: name: Müller, Fabian
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2024
Subjects: subject: counting complexity
subject: enumeration complexity
subject: descriptive complexity
subject: team logic
subject: Zählkomplexität
subject: Deskriptive Komplexität
subject: Aufzählkomplexität
subject: Team Logik
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: Descriptive complexity theory is the study of the expressibility of computational problems in certain logics. Most of the results in this field use (fragments or extensions of) first-order logic or second-order logic to describe decision complexity classes. For example the complexity class NP can be characterized as the set of problems that are describable by a dependence logic formula, in short NP = FO(=(...)). Dependence logic is a certain team logic, where a team logic is an extension of first-order logic by some new atoms, with new semantics, called team semantics. Compared to decision complexity where one is interested in the existence of a solution to an input instance, in counting complexity one is interested in the number of solutions and in enumeration complexity one wants to compute all solutions. Counting complexity has been less studied in terms of descriptive complexity than decision complexity, whereas there are no results for enumeration complexity in this field. The latter is because the concept of hardness in the enumeration setting was first introduced rather recently. In this thesis, we characterize counting and enumeration complexity classes with team logics and compare the results to the corresponding results for decision complexity classes. To study the framework of hard enumeration a bit more, we investigate further team logic based enumeration problems. In the counting setting we characterize the classes #P and #•NP as #P = #FOT and #•NP = #FO(⊥). Furthermore, we establish two team logic based classes #FO(⊆) and #FO(=(...)) which seem to have no direct counterpart in classical counting complexity, but contain problems that are complete under Turing reductions for #P and #•NP, respectively. To show the latter we identify a new #•NP-complete problem with respect to Turing reductions. We show that in the enumeration setting the classes behave very similarly to the corresponding classes in the decision setting. We translate the results P = FO(⊆) and NP = FO(=(...)) to the enumeration setting which results in DelP = DelFO(⊆) and DelNP = DelFO(=(...)). Furthermore, we identify several DelP and DelNP-complete problems which yield additional characterisations of DelP and DelNP. For one of the investigated problems we were only able to show Del+NP membership (and DelNP-hardness), a precise classification remains open.