cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Using atomic interference to probe atom-surface interaction
Creators: name: Marani, R.
name: Cognet, L.
name: Savalli, V.
name: Westbrook, N.
name: Westbrook, C. I.
name: Aspect, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We show that atomic interference in the reflection from two suitably polarized evanescent waves is sensitive to retardation effects in the atom-surface interaction for specific experimental parameters. We study the limit of short and long atomic de Broglie wavelength. The former case is analyzed in the semiclassical approximation (Landau-Zener model). The latter represents a quantum regime and is analyzed by solving numerically the associated coupled Schroedinger equations. We consider a specific experimental scheme and show the results for rubidium (short wavelength) and the much lighter meta-stable helium atom (long wavelength). The merits of each case are then discussed.
description: 11 pages, including 6 figures, submitted to Phys. Rev. A, RevTeX source
Systematic study of high $p_{\rm T}$ hadron production in small collision systems by the PHENIX experiment at RHIC
Creators: name: Sakaguchi, Takao
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: High $p_{\rm T}$ hadrons in the small systems of $d/^3$He+Au and $p$+Al/Au collisions have been measured at the midrapidity ($|η|<0.35$) as well as at the forward and backward rapidities ($1.2
description: 10 pages, 9 figures, proceedings for the XLVII International Symposium on Multiparticle Dynamics (ISMD2017), Sep 11-15, 2017, in Tlaxcala city, Mexico
Scattering theory for the Schrödinger-Debye System
Creators: name: Correia, Simão
name: Oliveira, Filipe
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q55, 35Q60, 35B40

description: We study the Schrödinger-Debye system over $\mathbb{R}^d$ iu_t+\frac 12Δu=uv,\quad μv_t+v=λ|u|^2 and establish the global existence and scattering of small solutions for initial data in several function spaces in dimensions $d=2,3,4$. Moreover, in dimension $d=1$, we prove a Hayashi-Naumkin modified scattering result.
description: 22 pages
BCS-BEC crossover and quantum phase transition for 6Li and 40K atoms across Feshbach resonance
Creators: name: Yi, W.
name: Duan, L. -M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We systematically study the BCS-BEC crossover and the quantum phase transition in ultracold 6Li and 40K atoms across a wide Feshbach resonance. The background scattering lengths for 6Li and 40K have opposite signs, which lead to very different behaviors for these two types of atoms. For 40K, both the two-body and the many-body calculations show that the system always has two branches of solutions: one corresponds to a deeply bound molecule state; and the other, the one accessed by the current experiments, corresponds to a weakly bound state with population always dominantly in the open channel. For 6Li, there is only a unique solution with the standard crossover from the weakly bound Cooper pairs to the deeply bound molecules as one sweeps the magnetic field through the crossover region. Because of this difference, for the experimentally accessible state of 40K, there is a quantum phase transition at zero temperature from the superfluid to the normal fermi gas at the positive detuning of the magnetic field where the s-wave scattering length passes its zero point. For 6Li, however, the system changes continuously across the zero point of the scattering length. For both types of atoms, we also give detailed comparison between the results from the two-channel and the single-channel model over the whole region of the magnetic field detuning.
description: 7 pages, 6 figures
Accreting Transition Discs with large cavities created by X-ray photoevaporation in C and O depleted discs
Creators: name: Ercolano, Barbara
name: Weber, Michael L.
name: Owen, James E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Circumstellar discs with large dust depleted cavities and vigorous accretion onto the central star are often considered signposts for (multiple) giant planet formation. In this letter we show that X-ray photoevaporation operating in discs with modest (factors 3-10) gas-phase depletion of Carbon and Oxygen at large radii (> 15 AU) yield the inner radius and accretion rates for most of the observed discs, without the need to invoke giant planet formation. We present one-dimensional viscous evolution models of discs affected by X-ray photoevaporation assuming moderate gas-phase depletion of Carbon and Oxygen, well within the range reported by recent observations. Our models use a simplified prescription for scaling the X-ray photoevaporation rates and profiles at different metallicity, and our quantitative result depends on this scaling. While more rigorous hydrodynamical modelling of mass loss profiles at low metallicities is required to constrain the observational parameter space that can be explained by our models, the general conclusion that metal sequestering at large radii may be responsible for the observed diversity of transition discs is shown to be robust. Gap opening by giant planet formation may still be responsible for a number of observed transition discs with large cavities and very high accretion rate.
description: 5 pages; 2 figures; accepted as a Letter to Monthly Notices of the Royal Astronomical Society (MNRASL)
Adaptive Organizations and Emergent Forms
Creators: name: Carley, Kathleen
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Over time organizations change and coordinate personnel in new ways. Such changes may be precipitated by actual or anticipated changes in personnel, the environment, technologies, legislation, or the top management team. This adaptation is constrained and not all forms of coordination are feasible. Since organizations are inherently computational entities insight is gained by examining the adaptation of organizations using intelligent artificial agents. Using ORGAHEAD, a multi-agent model of organizational behavior, a series of virtual experiments were run to examine issues of organizational adaptation. Results suggest the concurrent occurrence of experiential learning and structural learning generates within the organization the ability to learn meta-change strategies which can be either adaptive or maladaptive. Such meta-change strategies effectively lock organizations into divergent paths of behavior which produce heterogeneity of form across the population of organizations. Organizational performance and form depend on a complex of array of factors including environmental change, experiential and structural learning, and the emergence of institutionalized strategies.
Additional file 1 of Incidence, characteristics, and outcomes of delirium in patients with noninvasive ventilation: a prospective observational study
Creators: name: Zhang, Rui
name: Bai, Linfu
name: Han, Xiaoli
name: Huang, Shicong
name: Zhou, Lintong
name: Duan, Jun
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Virology

description: Additional file 1. Supplementary Table 1. Results of Cox regression analyses for NIV failure.
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball
Creators: name: Adhikari, S. K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study spontaneous symmetry breaking (SSB), Josephson oscillation, and self-trapping in a stable, mobile, three-dimensional matter-wave spherical quantum ball self-bound by attractive two-body and repulsive three-body interactions. The SSB is realized by a parity-symmetric (a) one-dimensional (1D) double-well potential and (b) a 1D Gaussian potential, both along the $z$ axis and no potential along the $x$ and $y$ axes. In the presence of each of these potentials, the symmetric ground state dynamically evolves into a doubly-degenerate SSB ground state. If the SSB ground state in the double well, predominantly located in the first well ($z>0$), is given a small displacement, the quantum ball oscillates with a self-trapping in the first well. For a medium displacement one encounters an asymmetric Josephson oscillation. The asymmetric oscillation is a consequence of SSB. The study is performed by a variational and numerical solution of a non-linear mean-field model with 1D parity-symmetric perturbations.
title: Ataúlfo and Aliatar: Political and Cosmic Irresolution in Ángel de Saavedra’s Earliest Plays
Creators: name: Blackshaw Naberhaus, Christine
Publisher: name: Utah State University
Year: 2016

description: As a playwright, Ángel de Saavedra, more often identified as duque de Rivas, is largely remembered for Don Álvaro o la fuerza del sino, even though he wrote fourteen other plays, some of which enjoyed considerable popular and critical success.1 This remains true even as long-lost plays, such as Ataúlfo and Doña Blanca, have resurfaced, and as scholars have emphasized the need to study all of Rivas’s theatrical works, and not just his best-known ones (Blackshaw Naberhaus 373; Materna 603; and Shaw, “Ataúlfo” 231).
A shock wave instability induced on a periodically disturbed interface
Creators: name: Markhotok, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The shock wave instability induced when interacting with a small waviness on an interface was investigated analytically and numerically. The perturbation to the shock was phenomenologically treated assuming this as the consequence of the shock refraction. The instability develops in the form of wave-like stretchings into the lower density medium followed with the loss of stability in the flow behind it, and eventually evolving into an intense vortex structure. The instability mode is aperiodical and unconditional, and either a transition to another stable state or continuous development as a secondary flow is possible. Among other interesting features are: a similarity law in the spatial and temporal evolution of the perturbations with respect to the interface curvature; the instability locus independence of the gas density distribution thus identifying the interface conditions as the sole triggering factor; the role of the density gradient in the instability evolution discriminating between qualitatively different outcomes; and the possibility of decay via non-viscous dumping mechanisms. The phenomenological connection between the shock and the interface stability is discussed.
title: irritation 3 annotation
Creators: name: Mạc, Đăng Khoa
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2015
Subjects: subject: Vietnamien
subject: vie

description: Conforms to: Praat textgrid
Semiclassical Diagonalization of Quantum Hamiltonian and Equations of Motion with Berry Phase Corrections
Creators: name: Gosselin, Pierre
name: Bérard, Alain
name: Mohrbach, Herve
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: It has been recently found that the equations of motion of several semiclassical systems must take into account terms arising from Berry phases contributions. Those terms are responsible for the spin Hall effect in semiconductor as well as the Magnus effect of light propagating in inhomogeneous media. Intensive ongoing research on this subject seems to indicate that a broad class of quantum systems may be affected by Berry phase terms. It is therefore important to find a general procedure allowing for the determination of semiclassical Hamiltonian with Berry Phase corrections. This article presents a general diagonalization method at order $\hbar $ for a large class of quantum Hamiltonians directly inducing Berry phase corrections. As a consequence, Berry phase terms on both coordinates and momentum operators naturally arise during the diagonalization procedure. This leads to new equations of motion for a wide class of semiclassical system. As physical applications we consider here a Dirac particle in an electromagnetic or static gravitational field, and the propagation of a Bloch electrons in an external electromagnetic field.
description: 15 pages
Adapting to Climate Change: The Remarkable Decline in the U.S. Temperature-Mortality Relationship over the 20th Century
Creators: name: Barreca, Alan
name: Clay, Karen
name: Deschenes, Olivier
name: Greenstone, Michael
name: Shapiro, Joseph S.
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Adaptation is the only strategy that is guaranteed to be part of the world's climate strategy. Using the most comprehensive set of data files ever compiled on mortality and its determinants over the course of the 20th century, this paper makes two primary discoveries. First, we find that the mortality effect of an extremely hot day declined by about 80% between 1900-1959 and 1960-2004. As a consequence, days with temperatures exceeding 90°F were responsible for about 600 premature fatalities annually in the 1960-2004 period, compared to the approximately 3,600 premature fatalities that would have occurred if the temperature-mortality relationship from before 1960 still prevailed. Second, the adoption of residential air conditioning (AC) explains essentially the entire decline in the temperature-mortality relationship. In contrast, increased access to electricity and health care seem not to affect mortality on extremely hot days. Residential AC appears to be both the most promising technology to help poor countries mitigate the temperature related mortality impacts of climate change and, because fossil fuels are the least expensive source of energy, a technology whose proliferation will speed up the rate of climate change.
Canción del segador de Lorca: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2024
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2024), led by professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Generalized Unitarity Relation for Linear Scattering Systems in One Dimension
Creators: name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We derive a generalized unitarity relation for an arbitrary linear scattering system that may violate unitarity, time-reversal invariance, ${\cal PT}$-symmetry, and transmission reciprocity.
description: 8 pages
title: Narrative Intervention and the Black Aesthetic in Cirilo Villaverde’s Cecilia Valdés and Martín Morúa Delgado’s Sofía
Creators: name: Nelsen, Vanessa
Publisher: name: Utah State University
Year: 2011

description: In nineteenth-century Cuba, a politically influential group of Creole intellectuals, writers and literary critics, headed by Domingo del Monte, sought to replace the ruling Peninsular hegemony by creating a national literary institution under which they could consolidate their power. These writers would take the image of colonial Cuba, as established in Peninsular art and literature, and reinvent it through strategic alteration as a national literature. Del Monte stressed the importance of developing a writing style conducive to the representation of an independent Cuba that differed from the idealized Peninsular image in which Cuba appeared as a colonizer’s utopia or a docile territory that generated prosperity for the motherland. This image of a colonial Cuba was propagated in an art and literature that conspicuously omitted the presence of freed blacks on the island at a time when their presence had never been so statistically significant or politically troublesome for the colonial order.1 In order to outshine Peninsular rule at its own power game, the del Monte writers adopted a costumbrista style of writing, but incorporated a feature previously excluded from these European texts and crucial to disturbing the colonial image: blackness. Because slave rebellions, a growing class of freed blacks, and emancipation movements already threatened colonial hegemony continent-wide, a literature that centered on blackness could destabilize the colonial government led by Capitán General Tacón, which represented the interests of large sugar plantations and slavers. Thus, white Creole writers consolidated their ranks and moved toward institutionality by asserting a proto-nationalist politics encapsulated by the vehicle of a strategically positioned blackness within their texts.
Checklisten zum Auswählen und Ausprobieren textgenerativer KI für das studentische Arbeiten
Creators: name: Massenberg, Antonia
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Artificial intelligence

description: Eine kurze Präsentation mit softwareagnostischen Checklisten, die Studierende beim Auswählen und Ausprobieren textgenerativer KI unterstützen sollen: Worauf man bei der Auswahl eines KI-unterstützten Tools achten sollte, Red Flags in der Werbung für eine Software, und eine Anleitung zum Erproben und Prompten.

Erstellt für Schulungen der Universitätsbibliothek Marburg.
D3.2 Report of results of the early public consultation
Creators: name: Delaney, Fiona
name: Farrell, Sharon
name: Favaro, John
Publisher: name: Zenodo
Year: 2024

description: This deliverable includes the results of the first SEEBLOCKS.eu Open Consultation on "Shaping the future of Blockchain Standards in Europe"

The Public Consultation instrument is a fundamental pillar of EC policy. It constitutes an important component of the Commission’s commitment to guaranteeing transparency and inclusiveness for all those citizens and stakeholders affected by its decisions. A Public Consultation invites stakeholders of all types, ranging from organisations to private citizens, to provide feedback on policy-related activities before they are finalised, in order to ensure that a broad range of legitimate needs and requirements are taken into consideration.

More and more, the boundaries between technology-related and policy-related activities are blurring, given the increasing ability of new technologies to affect the lives of citizens. The AI Act has been only the most recent, highly-publicised example of the need to address the capability of a technology to have a profound effect not only on markets, but also on society in general.

Blockchain and Distributed Ledger Technology is another example: the technology forms the basis of some of the most ambitious and forward-looking EC policies to enhance the lives of its citizens, from Identity Management, to sustainable supply chains, to improved interaction with public administrations. For this reason, SEEBLOCKS.eu from the very start planned for two public consultations, directed both at those working in related technological domains and those interested stakeholders from all domains.

In this first, early public consultation, we sought feedback that would help us to either confirm our current work plans or institute course corrections as necessary going forward. As the reader will discover, the results have provided valuable insights on technological aspects of current Blockchain/DLT standardisation activities (the main thrust of SEEBLOCKS.eu). Equally valuable, however, has been the feedback on the needs and perceptions of both market and societal stakeholders concerning the technology itself. This feedback will help us to ensure that our outreach, awareness-raising, and capacity-building activities adequately address the issues raised by our respondents about the role of Blockchain/DLT technology in today’s society.

We thank all those who have responded to this first public consultation, and hope that they will find the results as provocative and stimulating as we have. In the meantime, we look forward to the second public consultation at a later date in the project.
title: Comprehensive BIM Integration for Architectural Education Using Computational Design Visual Programming Environments
title: Comprehensive BIM Integration
titleType: AlternativeTitle
Creators: name: Schroeder, Roger
name: Dean, William
Publisher: name: University of Massachusetts Amherst
Year: 2019
Subjects: subject: Computational Design and Analysis
subject: Pedagogy
subject: Architectural Technology
subject: Architecture
subject: FOS: Civil engineering

description: Recent developments in visual programming environments that function as components of the BIM software point to new ways to interact with the emerging and evolving BIM paradigm now common to most educators. Presenting this material comprehensively across the program curriculum is difficult since the expertise to develop course-specific computational content may not yet exist. This examination proposes and explores a methodology of assisting the current evolution of using computational frameworks but integrated into coursework across the curriculum. Building components in a modular form will allow both educators and students improved accessibility to the concepts of using a shared model in advanced analytical and visual ways. Underpinning this component approach is the availability of using node base parametric modeling tools to extend BIM software, notably Dynamo for Revit, and the nodes being developed for it.
The Amplitude of the Kilohertz Quasi-periodic Oscillations in 4U 1728-34, 4U 1608-52, and Aql X-1, as a Function of X-ray Intensity
Creators: name: Mendez, Mariano
name: van der Klis, Michiel
name: Ford, Eric C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the kilohertz quasi-periodic oscillations (kHz QPOs) in the low-mass X-ray binaries 4U 1728-34, 4U 1608-52, and Aql X-1. Each source traces out a set of nearly parallel lines in a frequency vs. X-ray count rate diagram. We find that between two of these tracks, for similar QPO frequency, the source count rate can differ by up to a factor of ~ 4, whereas at the same time the rms amplitude of the kHz QPOs is only a factor of ~ 1.1 different. We also find that, for 4U 1608-52 and Aql X-1, the rms spectrum of the kHz QPOs does not depend upon which track the source occupies in the frequency vs. X-ray count rate diagram. Our results for 4U 1728-34, 4U 1608-52, and Aql X-1 are inconsistent with scenarios in which the properties of the kHz QPOs are only determined by the mass accretion rate through the disk, whereas X-ray count rate also depends upon other sources of energy that do not affect the QPOs.
description: Submitted to ApJ.(7 pages; 9 figures)
title: The Estate Must Be Protected! Work and the Necessity of Restraint in Roa Bárcena’s La quinta modelo (1857)
Creators: name: Gutiérrez Negrón, Sergio
Publisher: name: Utah State University
Year: 2016

description: Left to his own devices, man succumbs to vagrancy, idleness and, ultimately, death. That is the lesson that lies behind the political parody and moralizing polemic that is La quinta modelo (1857), a novel penned by Mexican Catholic writer José María Roa Bárcena (1827- 1908). Written in the eve of the Reform War (1857-1861), La quinta modelo staged the confrontation between a traditional and providential order, and what it considered the foreign and dangerous idealism of Mexican liberals in the domestic space of an hacendado family. Published in the Mexico City press of the time, the novel served not only as a cautionary tale of the dangers of the political and constitutional platform of the Partido Liberal, which had come to power after the Revolution of Ayutla (1854-1855), but also as a condemnation of what Roa Bárcena foresaw as an imminant and dangerous war.1
A Typology for Network Measures for Organizations
Creators: name: Carley, Kathleen
name: Krackhardt, David
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Numerous measures of organizational structure have been developed. The goal is to develop a small meaningful and predictive set. Work in this area, however, has been hampered by a lack of a standard categorization schema. Such a schema is presented herein. This schema is based on the recognition that many aspects of organizational structures can be represented as graphs.
Using the Coronal Evolution to Successfully Forward Model CMEs' In Situ Magnetic Profiles
Creators: name: Kay, C.
name: Gopalswamy, N.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Predicting the effects of a coronal mass ejection (CME) impact requires knowing if impact will occur, which part of the CME impacts, and its magnetic properties. We explore the relation between CME deflections and rotations, which change the position and orientation of a CME, and the resulting magnetic profiles at 1 AU. For 45 STEREO-era, Earth-impacting CMEs, we determine the solar source of each CME, reconstruct its coronal position and orientation, and perform a ForeCAT (Kay et al. 2015a) simulation of the coronal deflection and rotation. From the reconstructed and modeled CME deflections and rotations we determine the solar cycle variation and correlations with CME properties. We assume no evolution between the outer corona and 1 AU and use the ForeCAT results to drive the FIDO in situ magnetic field model (Kay et al. 2017a), allowing for comparisons with ACE and Wind observations. We do not attempt to reproduce the arrival time. On average FIDO reproduces the in situ magnetic field for each vector component with an error equivalent to 35% of the average total magnetic field strength when the total modeled magnetic field is scaled to match the average observed value. Random walk best fits distinguish between ForeCAT's ability to determine FIDO's input parameters and the limitations of the simple flux rope model. These best fits reduce the average error to 30%. The FIDO results are sensitive to changes of order a degree in the CME latitude, longitude, and tilt, suggesting that accurate space weather predictions require accurate measurements of a CME's position and orientation.
description: accepted in JGR: Space Physics
Canción del segador de Lorca: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2021
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2022), led by the professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Dirac operator on the q-deformed Fuzzy sphere and Its spectrum
Creators: name: Harikumar, E.
name: Queiroz, Amilcar R.
name: Teotonio-Sobrinho, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The q-deformed fuzzy sphere $S_{qF}^2(N)$ is the algebra of $(N+1)\times(N+1)$ dim. matrices, covariant with respect to the adjoint action of $\uq$ and in the limit $q\to 1$, it reduces to the fuzzy sphere $S_{F}^2(N)$. We construct the Dirac operator on the q-deformed fuzzy sphere-$S_{qF}^{2}(N)$ using the spinor modules of $\uq$. We explicitly obtain the zero modes and also calculate the spectrum for this Dirac operator. Using this Dirac operator, we construct the $\uq$ invariant action for the spinor fields on $S_{qF}^{2}(N)$ which are regularised and have only finite modes. We analyse the spectrum for both $q$ being root of unity and real, showing interesting features like its novel degeneracy. We also study various limits of the parameter space (q, N) and recover the known spectrum in both fuzzy and commutative sphere.
description: 19 pages, 6 figures, more references added
Additional file 2 of Incidence, characteristics, and outcomes of delirium in patients with noninvasive ventilation: a prospective observational study
Creators: name: Zhang, Rui
name: Bai, Linfu
name: Han, Xiaoli
name: Huang, Shicong
name: Zhou, Lintong
name: Duan, Jun
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Virology

description: Additional file 2. Supplementary Table 2. Results of Cox regression analyses for NIV failure, ICU mortality, and hospital mortality among patients with pneumonia/ARDS.
Checklisten zum Auswählen und Ausprobieren textgenerativer KI für das studentische Arbeiten
Creators: name: Massenberg, Antonia
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Artificial intelligence

description: Eine kurze Präsentation mit softwareagnostischen Checklisten, die Studierende beim Auswählen und Ausprobieren textgenerativer KI unterstützen sollen: Worauf man bei der Auswahl eines KI-unterstützten Tools achten sollte, Red Flags in der Werbung für eine Software, und eine Anleitung zum Erproben und Prompten.

Erstellt für Schulungen der Universitätsbibliothek Marburg.
Canción del segador de Lorca: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2022
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2024), led by the professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Supergiants and their shells in young globular clusters
Creators: name: Szécsi, Dorottya
name: Mackey, Jonathan
name: Langer, Norbert
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Anomalous surface abundances are observed in a fraction of the low-mass stars of Galactic globular clusters, that may originate from hot-hydrogen-burning products ejected by a previous generation of massive stars. We present and investigate a scenario in which the second generation of polluted low-mass stars can form in shells around cool supergiant stars within a young globular cluster. Simulations of low-Z massive stars (M$_{\rm i}\sim$ 150$-$600 M$_{\odot}$) show that both core-hydrogen-burning cool supergiants and hot ionizing stellar sources are expected to be present simulaneously in young globular clusters. Under these conditions, photoionization-confined shells form around the supergiants. We find that the shell is gravitationally unstable on a timescale that is shorter than the lifetime of the supergiant, and the Bonnor-Ebert mass of the overdense regions is low enough to allow star formation. Since the low-mass stellar generation formed in this shell is made up of the material lost from the supergiant, its composition necessarily reflects the composition of the supergiant wind. We show that the wind contains hot-hydrogen-burning products, and that the shell-stars therefore have very similar abundance anomalies that are observed in the second generation stars of globular clusters. Considering the mass-budget required for the second generation star-formation, we offer two solutions. Either a top-heavy initial mass function is needed with an index of $-$1.71..$-$2.07. Alternatively, we suggest the shell-stars to have a truncated mass distribution, and solve the mass budget problem by justifiably accounting for only a fraction of the first generation. Even without forming a photoionizaton-confined shell, the cool supergiant stars predicted at low-Z could contribute to the pollution of the interstellar medium of the cluster from which the second generation was born.
description: accepted to Astronomy and Astrophysics
Evaporation of Low-Mass Planet Atmospheres: Multidimensional Hydrodynamics with Consistent Thermochemistry
Creators: name: Wang, Lile
name: Dai, Fei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Direct and statistical observational evidences suggest that photoevaporation is important in eroding the atmosphere of sub-Neptune planets. We construct full hydrodynamic simulations, coupled with consistent thermochemistry and ray-tracing radiative transfer, to understand the physics of atmospheric photoevaporation caused by high energy photons from the host star. We identify a region on the parameter space where a hydrostatic atmosphere cannot be balanced by any plausible interplanetary pressure, so that the atmosphere is particularly susceptible to loss by Parker wind. This region may lead an absence of rich atmosphere (substantially H/He) for planets with low mass (M ~ 3 M_earth). Improving on previous works, our simulations include detailed microphysics and a self-consistent thermochemical network. Full numerical simulations of photoevaporative outflows shows a typical outflow speed ~ 30 km/s and Mdot ~ 4e-10 M_earth/yr for a 5 M_earth fiducial model rocky-core planet with 1e-2 of its mass in the atmosphere. Supersonic outflows are not quenched by stellar wind ram pressure (up to 5 times the total pressure at transonic points of the fiducial model). The outflows modulated by stellar wind are collimated towards the night side of the planet, while the mass loss rate is only ~ 25% lower than the fiducial model. By exploring the parameter space, we find that EUV photoionization is most important in launching photoevaporative wind. Other energetic radiation, including X-ray, are of secondary importance. The leading cooling mechanism is ro-vibrational molecular cooling and adiabatic expansion rather than recombination or Ly alpha cooling. The wind speed is considerably higher than the escape velocity at the wind base in most cases, hence the mass loss rate is proportional to the second power of the EUV photosphere size R_euv, instead of the third, as suggested by previous works...
description: 16 pages, 10 figures; submitted to ApJ
title: “My Reputación Precedes Me”: La Malinche and Palimpsests of Sacrifice, Scapegoating, and Mestizaje In Xicoténcatl and Los mártires del Anáhuac
Creators: name: Nevárez, Lisa
Publisher: name: Utah State University
Year: 2004

description: The treachery of a woman, the violence of conquest, and the birth of the mestizo—these form the beginnings of Mexico’s history. Octavio Paz vocalizes the grito unique to Mexico, ¡Viva México, hijos de la Chingada!, and in so doing takes his place among the individuals salivating to blame La Malinche, also known as Marina or Malintzín, for her betrayal of her people by giving birth to Hernán Cortés’ child, the “first” mestizo and the ancestor of the modern Mexican.1 Examining the novels Xicoténcatl (1826), published anonymously, and Los mártires del Anáhuac (1870), by Eligio Ancona, facilitates a glimpse into fictional revisions of La Malinche and the Conquest of Mexico.2 In each author’s reinterpretation of the Conquest, he inserts female figures, respectively Teutila and Geliztli, whose efforts to repel the colonizing forces meet with repeated failure and whose fertility male characters curtail; ultimately, he provides a scapegoat in place of La Malinche. In Xicoténcatl the author offers an account of the title hero of Tlaxcala during the conquest of Mexico in the earliest historical novel by a Latin American, and Ancona also delves into the past to resurrect his nation’s earliest colonial experience in Los mártires del Anáhuac. The conflicted dynamics between colonizer/colonized and male/female underscore these texts; when viewed together Teutila and Geliztli no longer appear as stock characters that add dramatic moments of female distress. They instead mitigate the extreme emotions of author, reader, and nation through sacrifice. Moving chronologically through these variations of the Conquest of Mexico, the texts span different epochs of Mexican history, independence (Xicoténcatl) and reform (Los mártires del Anáhuac), that intersect through images of the woman and of sacrifice, and raise larger issues relating to independence in nineteenth-century Latin America and the role of fiction in these projects.
A Structural Perspective on Organizational Cognitions: Attributions of Power, Performance, and Attitudes
Creators: name: Carley, Kathleen
name: Krackhardt, David
Publisher: name: Carnegie Mellon University
Year: 1995
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: We develop a model of individual’s organizational cognitions (mental models for attitudes and evaluations of self and others in the workplace) that combines structural and cognitive influences. In this model cognition mediates the influence of structure on individual outcomes (attitudes and evaluations). We examine this model using data from a small engineering firm (including social network, attitude, and evaluation information). The results support the model and are consistent with the argument that individuals' structural position and roles constrain their organizational cognitions and so affect their evaluations of themselves and others. Accordingly, supervisors and subordinates both utilize the same information in different ways and utilize different information. Consequently, the organizational cognitions of individuals who occupy different structural positions differ systematically from each other. In particular, supervisors are more likely than subordinates to use external, organizationally validated information in evaluating subordinates; whereas, subordinates’ cognitions are more informed by patterns of friendship.
Distributed Estimation Recovery under Sensor Failure
Creators: name: Doostmohammadian, Mohammadreza
name: Rabiee, Hamid R.
name: Zarrabi, Houman
name: Khan, Usman A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Systems and Control (eess.SY)
subject: Multiagent Systems (cs.MA)
subject: Social and Information Networks (cs.SI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Single time-scale distributed estimation of dynamic systems via a network of sensors/estimators is addressed in this letter. In single time-scale distributed estimation, the two fusion steps, consensus and measurement exchange, are implemented only once, in contrast to, e.g., a large number of consensus iterations at every step of the system dynamics. We particularly discuss the problem of failure in the sensor/estimator network and how to recover for distributed estimation by adding new sensor measurements from equivalent states. We separately discuss the recovery for two types of sensors, namely αand βsensors. We propose polynomial order algorithms to find equivalent state nodes in graph representation of system to recover for distributed observability. The polynomial order solution is particularly significant for large-scale systems.
description: IEEE signal processing letters
True upper bounds for Bermudan products via non-nested Monte Carlo
Creators: name: Belomestny, Denis
name: Bender, Christian
name: Schoenmakers, John G. M.
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Bermudan options
subject: Monte Carlo method
subject: primal-dual method
subject: martingale representation theorem
subject: regression
subject: 60H30
subject: 65C05
subject: 91B28

description: We present a generic non-nested Monte Carlo procedure for computing true upper bounds for Bermudan products, given an approximation of the Snell envelope. The pleonastic ``true'' stresses that, by construction, the estimator is biased above the Snell envelope. The key idea is a regression estimator for the Doob martingale part of the approximative Snell envelope, which preserves the martingale property. The so constructed martingale may be employed for computing dual upper bounds without nested simulation. In general, this martingale can also be used as a control variate for simulation of conditional expectations. In this context, we develop a variance reduced version of the nested primal-dual estimator (Anderson & Broadie (2004)) and nested consumption based (Belomestny & Milstein (2006)) methods . Numerical experiments indicate the efficiency of the non-nested Monte Carlo algorithm and the variance reduced nested one.
title: Las Escenas Norteamericanas en diálogo con las narrativas urbanas en el fin de siglo neoyorquino
Creators: name: Noce, Cecilia
Publisher: name: Utah State University
Year: 2015

description: En el presente trabajo nos interesa analizar el diálogo que Martí establece con las narrativas que circulaban en los Estados Unidos a finales del siglo XIX, específicamente con las guías urbanas de las décadas de 1870 y 1880 y las narrativas de exploración urbana de 1880, haciendo especial hincapié en la construcción de la ciudad, en los elementos dominantes y emergentes que utiliza y que dan cuenta de una nueva estructura de sentimiento.1
Weighted energy-dissipation functionals for gradient flows
Creators: name: Mielke, Alexander
name: Stefanelli, Ulisse
Publisher: name: Weierstrass Institute
Year: 2009
Subjects: subject: Variational principle
subject: gradient flow
subject: convergence
subject: 35K55

description: We investigate a global-in-time variational approach to abstract evolution by means of the weighted energy-dissipation functionals proposed by Mielke & Ortiz in ``A class of minimum principles for characterizing the trajectories of dissipative systems''. In particular, we focus on gradient flows in Hilbert spaces. The main result is the convergence of minimizers and approximate minimizers of these functionals to the unique solution of the gradient flow. Sharp convergence rates are provided and the convergence analysis is combined with time-discretization. Applications of the theory to various classes of parabolic PDE problems are presented. In particular, we focus on two examples of microstructure evolution from S. Conti and M. Ortiz ``Minimum principles for the trajectories of systems governed by rate problems''.
Realizing Colloidal Artificial Ice on Arrays of Optical Traps
Creators: name: Libal, A.
name: Reichhardt, C.
name: Reichhardt, C. J. Olson
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We demonstrate how a colloidal version of artificial ice can be realized on optical trap lattices. Using numerical simulations, we show that this system obeys the ice rules and that for strong colloid-colloid interactions, an ordered ground state appears. We show that the ice rule ordering can occur for systems with as few as twenty-four traps and that the ordering transition can be observed at constant temperature by varying the barrier strength of the traps.
description: 4 pages, 3 postscript figures; version to appear in Phys. Rev. Lett
DeBroglie-Bohm interpretation of a Hořava-Lifshitz quantum cosmology model
Creators: name: Oliveira-Neto, G.
name: Martins, L. G.
name: Monerat, G. A.
name: Silva, E. V. Corrêa
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the present letter, we consider the DeBroglie-Bohm interpretation of a Hořava-Lifshitz quantum cosmology model in the presence of a radiation perfect fluid. We compute the Bohm's trajectories for the scale factor and show that it never goes to zero. That result gives a strong indication that this model is free from singularities, at the quantum level. We also compute the quantum potential. That quantity helps understanding why the scale factor never vanishes.
description: 12 pages and 2 figures
A Stata Plugin for Estimating Group-Based Trajectory Models
Creators: name: Jones, Bobby L.
name: Nagin, Daniel
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Group-based trajectory models are used to investigate population differences in the developmental courses of behaviors or outcomes . This article demonstrates a new Stata command, traj, for fitting to longitudinal data finite (discrete) mixture models designed to identify clusters of individuals following similar progressions of some behavior or outcome over age or time. Censored normal, Poisson, zero-inflated Poisson, and Bernoulli distributions are supported. Applications to psychometric scale data, count data, and a dichotomous prevalence measure are illustrated
DELINKVENT XULQ - ATVOR KO'RINISHLARINING PSXOLOGIK XARAKTERISTIKASI
Creators: name: Xudoyqulova Azimaxon Shuhrat qizi
Publisher: name: Zenodo
Year: 2025

description: Annotatsiya: Mazkur maqolada delinkvent xulq-atvorning psixologik xususiyatlari, uning shakllanishiga ta’sir etuvchi omillar hamda yosh shaxslar ongida yuzaga keladigan ruhiy jarayonlar tahlil etiladi. Delinkvent xatti-harakatlar ijtimoiy me’yorlarga zid bo‘lgan, huquqbuzarlik darajasiga yetmagan salbiy xulq-atvor shakllari sifatida tavsiflanadi. Maqolada bunday xatti-harakatlarning kelib chiqish sabablari – oilaviy muhit, maktabdagi muammolar, do‘stlar bosimi, shaxsiy psixologik xususiyatlar – keng muhokama qilinadi. Shuningdek, delinkvent xulq-atvorni aniqlash va oldini olishga qaratilgan psixologik yondashuvlar va profilaktika choralari ko‘rib chiqiladi. Tadqiqot natijalari delinkvent yoshlar bilan ishlashda amaliy psixologik xizmat samaradorligini oshirishga xizmat qilishi mumkin.

Kalit so‘zlar: delinkvent xulq-atvor, psixologik xarakteristika, deviant xatti-harakatlar, ijtimoiy moslashuv, huquqbuzarlik, yoshlar psixologiyasi, shaxs rivojlanishi