cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sport and politics in Croatia - Athletes as National Icons in History Textbooks
Creators: name: Hrstić, Ivan
name: Mustapić, Marko
Publisher: name: Università degli  Studi di Milano
Year: 2015
Subjects: sport; politics; Croatia; history textbooks; nationalism

description: Strong relationship between sport and politics in everyday life is evident. Research on this topic has usually been concentrated on the relation between sport and nations. Despite that, research on the process of national identity (re)construction is still relatively rare. Therefore, as one aspect of that process, we have decided to do a research on the role of representation of sport in history textbooks. History textbooks represent an important tool in the construction and dissemination process of „official“ historical narratives in all states and societies, because the nation-states impose themselves as representatives of general public interest and they seek to retain control over school curriculum in order to validate the current system. When it comes to nation-states, one of the main goals of education is (re)construction of national identity among the youngest members of society. That was one of our initial theses in our analysis of the representation of sport in Croatian history textbooks for the final grades of primary and secondary schools in the period from 1918 to 2014. Our aim was to define the role of athletes and sport in general – both in the process of (re)construction of national identity and in the context of the process of modernization.
description: Altre Modernità, No 14 (2015): Giocarsi l’identità: sport  e culture, il locale e il globale
Characterising the flight song: repeatable individual variation of Ovenbird song features
Creators: name: Paul, Nadine
name: Thompson, Megan J.
name: Foote, Jennifer R.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: The songs of most passerines have been well described; however, songs from some species are more difficult to record and have yet to be characterised. The Ovenbird (Seiurus aurocapilla) flight song occurs rarely, is complex in its syllable composition, and its function is still not well understood. We examine the structure of the Ovenbird flight song using the largest sample of warbler flight songs to date (n = 396, 23 individuals) from autonomous recordings made in Sault Ste. Marie, Canada. We characterised the syllable repertoire of this song, examined song syntax, compared syllable sharing among males, and estimated repeatability of several song features. Syllable repertoires varied among males and they appeared to transition differently between syllables while singing, but we found no evidence for syllable sharing between neighbours. Male Ovenbirds were significantly repeatable in the syllable compositions of their flight songs, but repeatability estimates were lower for terminal compared to introductory segments. We find weak evidence of a negative relationship between song features at the within-individual level, suggesting that individuals also demonstrate considerable plasticity when singing. Understanding variation in the Ovenbird flight song will lead to a better understanding of the function(s) of this song type.
title: Dagstuhl Reports, Table of Contents, Volume 6, Issue 6, 2016
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2016
Subjects: subject: Dagstuhl Reports
subject: Table of Contents
subject: Volume 6
subject: Issue 6
subject: 2016

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 6, Issue 6, pages i-ii
Continuous Symmetries of Difference Equations
Creators: name: Levi, D.
name: Winternitz, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Group Theory (math.GR)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Lie group theory was originally created more than 100 years ago as a tool for solving ordinary and partial differential equations. In this article we review the results of a much more recent program: the use of Lie groups to study difference equations. We show that the mismatch between continuous symmetries and discrete equations can be resolved in at least two manners. One is to use generalized symmetries acting on solutions of difference equations, but leaving the lattice invariant. The other is to restrict to point symmetries, but to allow them to also transform the lattice.
description: Review article
Role of Water Model on Ion Dissociation at Ambient Conditions
Creators: name: Wills, Alec
name: Fernández-Serra, Marivi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We study ion pair dissociation in water at ambient conditions using a combination of classical and ab initio approaches. The goal of this study is to disentangle the sources of discrepancy observed in computed potentials of mean force. In particular we aim to understand why some models favor the stability of solvent-separated ion pairs versus contact ion pairs. We found that some observed differences can be explained by non-converged simulation parameters. However, we also unveil that for some models, small changes in the solution density can have significant effects on modifying the equilibrium balance between the two configurations. We conclude that the thermodynamic stability of contact and solvent-separated ion pairs is very sensitive to the dielectric properties of the underlying simulation model. In general, classical models are very robust on providing a similar estimation of the contact ion pair stability, while this is much more variable in density functional theory-based models. The barrier to transition from solvent-separated to contact ion pair is fundamentally dependent on the balance between electrostatic potential energy and entropy. This reflects the importance of water intra- and inter-molecular polarizability in obtaining an accurate description of the screened ion-ion interactions.
description: 13 + 11 pages, 12 + 10 figures
Fast Radio Burst Dispersion Measure Distribution as a Probe of Helium Reionization
Creators: name: Bhattacharya, Mukul
name: Kumar, Pawan
name: Linder, Eric V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Fast radio burst (FRB) discoveries are occurring rapidly, with thousands expected from upcoming surveys. The dispersion measures (DM) observed for FRB include important information on cosmological distances and the ionization state of the universe from the redshift of emission until today. Rather than considering the DM--redshift relation, we investigate the statistical ensemble of the distribution of dispersion measures. We explore the use of this abundance information, with and without redshift information, to probe helium reionization. Carrying out Monte Carlo simulations of FRB survey samples, we examine the effect of different source redshift distributions, host galaxy models, sudden vs gradual reionization, and covariance with cosmological parameters on determination of helium reionization properties. We find that a fluence limited survey with 10$^4$ FRBs can discriminate different helium reionization histories at $\sim6σ$ using the DM-distribution of bursts, without redshift information (and $\sim10σ$ with redshifts).
description: 15 pages, 11 figures
Reconfigurable Cyber-Physical System for Critical Infrastructure Protection in Smart Cities via Smart Video-Surveillance
Creators: name: Isern, Juan
name: Barranco, Francisco
name: Deniz, Daniel
name: Lesonen, Juho
name: Hannuksela, Jari
name: Carrillo, Richard R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Automated surveillance is essential for the protection of Critical Infrastructures (CIs) in future Smart Cities. The dynamic environments and bandwidth requirements demand systems that adapt themselves to react when events of interest occur. We present a reconfigurable Cyber Physical System for the protection of CIs using distributed cloud-edge smart video surveillance. Our local edge nodes perform people detection via Deep Learning. Processing is embedded in high performance SoCs (System-on-Chip) achieving real-time performance ($\approx$ 100 fps - frames per second) which enables efficiently managing video streams of more cameras source at lower frame rate. Cloud server gathers results from nodes to carry out biometric facial identification, tracking, and perimeter monitoring. A Quality and Resource Management module monitors data bandwidth and triggers reconfiguration adapting the transmitted video resolution. This also enables a flexible use of the network by multiple cameras while maintaining the accuracy of biometric identification. A real-world example shows a reduction of $\approx$ 75\% bandwidth use with respect to the no-reconfiguration scenario.
description: 13 pages, 8 figures and 5 tables
title: Dagstuhl Reports, Table of Contents, Volume 6, Issue 7, 2016
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2016
Subjects: subject: Dagstuhl Reports
subject: Table of Contents
subject: Volume 6
subject: Issue 7
subject: 2016

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 6, Issue 7, pages i-ii
8ºODS_Trabalho Digno_governança ecológica
Creators: name: Alves, Eduardo
Publisher: name: Zenodo
Year: 2024

description: 5º CIAGGA_CONGRESSO IBERO-AMERICANO DE COMPLIANCE GOVERNANÇA E ANTICORRUPÇÃO (Univ. Castilla de la Mancha. ES_07/08 de outubro 2024)

A Agenda  2030,  da ONU, configura-se hoje claramente como uma Agenda alargada e ambiciosa que aborda várias dimensões de desenvolvimento. Nesta avulta o Objetivo de Desenvolvimento Sustentável (ODS) 8 sobre Trabalho Digno para Todas as Pessoas. O ODS 8 visa o crescimento económico inclusivo e sustentável e o pleno emprego. O seu impacto vai além disso, pois é o único ODS que concilia metas sociais, econômicas e ambientais. Podemos, como defender a ONU, ser visto como um “objetivo multiplicador” de toda a Agenda de desenvolvimento sustentável, pois impactará positivamente outros objetivos, caso seja alcançado.
The unusual Nova Cygni 2006 (V2362 Cyg)
Creators: name: Kimeswenger, S.
name: Dalnodar, S.
name: Knapp, A.
name: Schafer, J.
name: Unterguggenberger, S.
name: Weiss, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: Optical nova lightcurves often have structures, such as rapid declines and recoveries, due to nebular or dusty phases of the ejecta. Nova Cygni 2006 (V2362 Cyg) underwent an unusual brightening after an early rapid decline. The shape of the lightcurve can be compared to that of V1493 Aql, but the whole event in that case was not as bright and only lasted a couple of weeks. V2362 Cyg had a moderately fast decline of t_2 = 9.0 before rebrightening, which lasted 250 days after maximum. Aims: We present an analysis of our own spectroscopic investigations in combination with AAVSO photometric data covering the whole rebrightening phase until the return to the final decline. Methods: We used the medium resolution spectroscopy obtained in ten nights over a period of 79 nights to investigate the change of the velocity structure of the ejecta. The publicly available AAVSO photometry was used to analyze the overall properties and the energy of the brightening. Results: Although the behavior of the main outburst (velocity, outburst magnitude, and decline timescales) resembles a ``normal'' classical nova, the shell clearly underwent a second fast mass ejecting phase, causing the unusual properties. The integrated flux during this event contributes ~ 40 % to the total radiation energy of the outburst. The evolution of the H_alpha profile during the bump event is obtained by subtracting the emission of the detached shells of the main eruption by a simple optically thin model. A distance of D ~ 7.5 {+3.0}{-2.5} kpc and an interstellar extinction E(B-V) = 0.6 +/- 0.1 was also derived.
description: 4 pages, 4 Postscript figures, accepted for A&A Letters
Supplementary Material for Paper "Statistical Testing of Quantum Programs via Fixed-Point Amplitude Amplification" in OOPSLA 2024
Creators: name: Kang, Chan Gu
name: Lee, Joonghoon
name: Oh, Hakjoo
Publisher: name: Zenodo
Year: 2024

description: This is supplementary material for paper "Statistical Testing of Quantum Programs via Fixed-Point Amplitude Amplification" appeared in OOPSLA 2024. The material is assumed to be read alongside the main paper (paper link : https://doi.org/10.1145/3689716).
9.4 Annual Impact Evaluation Report
Creators: name: Roos, Anell
name: Bleijenbergh, Inge
name: Verloo, Mieke
Publisher: name: Zenodo
Year: 2021
Subjects: Evaluation
Impact
Assessment

description: This report discusses the preparation of the Gender Equality Plans (GEPs) by the GEP implementing partners, the training and support in the whole consortium, and the ethical advice on the project. Using the criteria of feasibility, consistency and coordination, we discuss the GEP design of the six GEP implementing partners separately and then come up with recommendations. The evaluation shows all GEP implementing partners are well ahead in developing GEPs for their local institutions, but ran into a number of challenges throughout this process. These challenges included the tight timeframe of Deliverables and activities in the first project year (2019) and the delay in institutional decision-making between March and May 2020 due to the COVID-19 virus. The GEP development also presented opportunities, which included the factual overviews achieved in the participatory gender audits and the involvement of stakeholders in these audits, and in data collection and development of the GEPs. The consortium is very satisfied with the training and support offered by WP7 partner Yellow Window, and with the support of the coordinator, with some learning points in the use of the online forum Hermione. The ethical assessment is working as scheduled.
Interpreting Internal Consistency of DES Measurements
Creators: name: Miranda, V.
name: Rogozenski, P.
name: Krause, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Bayesian evidence ratios are widely used to quantify the statistical consistency between different experiments. However, since the evidence ratio is prior dependent, the precise translation between its value and the degree of concordance/discordance requires additional information. The most commonly adopted metric, the Jeffreys scale, can falsely suggest agreement between datasets when priors are chosen to be sufficiently wide. In this work, we examine evidence ratios in a DES-Y1 simulated analysis, focusing on the internal consistency between weak lensing and galaxy clustering. We study two scenarios using simulated data in controlled experiments. First, we calibrate the expected evidence ratio distribution given noise realizations around the best fit DES-Y1 $Λ$CDM cosmology. Second, we show the behavior of evidence ratios for noiseless fiducial data vectors simulated using a modified gravity model, which generates internal tension in the $Λ$CDM analysis. We show that the choice of prior could conceal the discrepancies between weak lensing and galaxy clustering induced by such models and that the evidence ratio in a DES-Y1 study is, indeed, biased towards agreement.
description: 19 figures
title: Dagstuhl Reports, Table of Contents, Volume 6, Issue 8, 2016
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2017
Subjects: subject: Dagstuhl Reports
subject: Table of Contents
subject: Volume 6
subject: Issue 8
subject: 2016

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 6, Issue 8, pages i-ii
Probing the Cosmic Ray density in the inner Galaxy
Creators: name: Peron, Giada
name: Aharonian, Felix
name: Casanova, Sabrina
name: Yang, Ruizhi
name: Zanin, Roberta
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The galactic diffuse $γ$-ray emission, as seen by Fermi Large Area Telescope (LAT), shows a sharp peak in the region around 4 kpc from the Galactic center, which can be interpreted either as due to an enhanced density of cosmic-ray accelerators or to a modification of the particle diffusion in that region. Observations of $γ$-rays originating in molecular clouds are a unique tool to infer the cosmic-ray density point by point, in distant regions of the Galaxy. We report here the analysis of 11 yr Fermi-LAT data, obtained in the direction of nine molecular clouds located in the 1.5--4.5 kpc region. The cosmic-ray density measured at the locations of these clouds is compatible with the locally measured one. We demonstrate that the cosmic-ray density gradient inferred from the diffuse gamma-ray emission is the result of the presence of cosmic-ray accelerators rather than a global change of the sea of Galactic cosmic rays due to their propagation.
Performance characteristics of low threshold current 1.25-μm type-II GaInAs/GaAsSb W-lasers for optical communications
Creators: name: Duffy, Dominic A.
name: Marko, Igor P.
name: Fuchs, Christian
name: Eales, Timothy D.
name: Lehr, Jannik
name: Stolz, Wolfgang
name: Sweeney, Stephen J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Type-II W-lasers have made an important contribution to the development of mid-infrared laser diodes. In this paper, we show that a similar approach can yield high performance lasers in the optical communications wavelength range. (GaIn)As/Ga(AsSb) type-II W structures emitting at 1255 nm have been realised on a GaAs substrate and exhibit low room temperature threshold current densities of 200-300 Acm$^{-2}$, pulsed output powers exceeding 1 W for 100 $μ$m wide stripes, and a characteristic temperature T${_0}$${\approx}$90 K around room temperature. Optical gain studies indicate a high modal gain around 15-23 cm$^{-1}$ at 200-300 Acm$^{-2}$ and low optical losses of 8 ${\pm}$ 3 cm$^{-1}$. Analysis of the spontaneous emission indicates that at room temperature, up to 24% of the threshold current is due to radiative recombination, with the remaining current due to other thermally activated non-radiative processes. The observed decrease in differential quantum efficiency with increasing temperature suggests that this is primarily due to a carrier leakage process. The impact of these processes is discussed in terms of the potential for further device optimisation. Our results present strong figures of merit for near-infrared type-II laser diodes and indicate significant potential for their applications in optical communications.
The Cooling of Compact Stars
Creators: name: Page, Dany
name: Geppert, Ulrich
name: Weber, Fridolin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The cooling of a compact star depends very sensitively on the state of dense matter at supranuclear densities, which essentially controls the neutrino emission, as well as on the structure of the stellar outer layers which control the photon emission. Open issues concern the hyperon population, the presence of meson condensates, superfluidity and superconductivity, and the transition of confined hadronic matter to quark matter. This paper describes these issues and presents cooling calculations based on a broad collection of equations of state for neutron star matter and strange matter. These results are tested against the body of observed cooling data.
description: Invited review for a special issue of Nucl. Phys. A. 44 pages, 18 figures
Temporal State Machines: Using temporal memory to stitch time-based graph computations
Creators: name: Madhavan, Advait
name: Daniels, Matthew
name: Stiles, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: Race logic, an arrival-time-coded logic family, has demonstrated energy and performance improvements for applications ranging from dynamic programming to machine learning. However, the ad hoc mappings of algorithms into hardware result in custom architectures making them difficult to generalize. We systematize the development of race logic by associating it with the mathematical field called tropical algebra. This association between the mathematical primitives of tropical algebra and generalized race logic computations guides the design of temporally coded tropical circuits. It also serves as a framework for expressing high level timing-based algorithms. This abstraction, when combined with temporal memory, allows for the systematic generalization of race logic by making it possible to partition feed-forward computations into stages and organizing them into a state machine. We leverage analog memristor-based temporal memories to design a such a state machine that operates purely on time-coded wavefronts. We implement a version of Dijkstra's algorithm to evaluate this temporal state machine. This demonstration shows the promise of expanding the expressibility of temporal computing to enable it to deliver significant energy and throughput advantages.
Engineering polymorphs in colloidal metal dichalcogenides: precursor-mediated phase control, molecular insights into crystallisation kinetics and promising electrochemical activity
Creators: name: Kapuria, Nilotpal
name: Patil, Niraj
name: Sankaran, Abinaya
name: Laffir, Fathima
name: Geaney, Hugh
name: Magner, Edmond
name: Scanlon, Micheál
name: Ryan, Kevin M.
name: Singh, Shalini
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: Controlling the crystal phase in layered transition metal dichalcogenides (TMDs) is critical for their diverse, flexible applications. However, due to the thermodynamic stability of 2H over other polymorphs, fine synthesis control over polymorphism in TMDs is challenging, restricting the entire range of characteristics associated with other polymorphs. Herein, we present a solution-based crystal phase engineering approach for layered transition metal disulphide nanosheets by modulating the reactivity of the molecular precursors. By tuning precursor–ligand chemistry, 2H, 1T′ and polytypic MoS2 and WS2 are synthesised. The flexibility to selectively modify the reactivity of S and metal precursors allowed control over the proportion of specific phases in synthesised nanosheets. The formation of 1T′ is facilitated by the highly reactive metal and S source, whereas less reactive sources lead to the formation of thermodynamically stable 2H. The electrocatalytic properties of the synthesised TMDs were examined for the oxygen reduction reaction. The polytypic MoS2 comprising a mix of 2H–1T′ displayed the most positive potential of 0.82 V (vs. RHE). The comprehensive mechanistic interpretation of the chemical transformations provided in this study will be instrumental in designing scalable solution-based pathways for phase engineering in layered transition metal dichalcogenides. Furthermore, this synthesis approach has the potential to be extended to various TMD compositions, enabling exquisite control over polymorphism in TMDs.
title: Dagstuhl Reports, Table of Contents, Volume 6, Issue 9, 2016
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2017
Subjects: subject: Dagstuhl Reports
subject: Table of Contents
subject: Volume 6
subject: Issue 9
subject: 2016

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 6, Issue 9, pages i-ii
A Large N expansion for Gravity
Creators: name: Canfora, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A Large N expansion for gravity is proposed. The scheme is based on the splitting of the Einstein-Hilbert action into the BF topological action plus a constraint. The method also allows to include matter fields. The relation between matter and non orientable fat graphs in the expansion is stressed; the special role of scalars is shortly discussed. The connections with the Holographic Principle and higher spin fields are analyzed.
description: Accepted for publication on Nuclear Physics B. 25 pages, 11 figures, reference added
Guidelines for GEP Impact Evaluation
Creators: name: Roos, Anell
name: Verloo, Mieke
name: Bleijenbergh, Inge
Publisher: name: Zenodo
Year: 2021
Subjects: Evaluation
Design
Impact
Roadmap

description: This document serves as the main guidelines for the evaluation of the GEARING ROLES project (Grant Agreement Nr.: 824536), to be used during the whole implementation period. It describes the rationale and the details of the Impact Evaluation (9.2).
Conservation Laws on Riemann-Cartan, Lorentzian and Teleparallel Spacetimes
Creators: name: Rodrigues, Waldyr A.
name: de Souza, Quintino A. G.
name: da Rocha, Roldao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper using a Clifford bundle formalism we examine (a): the strong conditions for existence of conservation laws involving only the energy-momentum and angular momentum of the matter fields on a general Riemann-Cartan spacetime and also in the particular cases of Lorentzian and teleparallel spacetimes and (b): the conditions for the existence of conservation laws of energy-momentum and angular momentum for the matter and gravitational fields when this latter concept can be rigorously defined. We examine in details some misleading and even erroneous and often quoted statements concerning the issues of the conservation laws in General Relativity and Riemann-Cartan (including the particular case of the teleparallel one) theories.
description: Some sections have been rewritten for better inteligibility and some new material and new references have been included and others updated. Some important misprints of the previous version have been corrected. The contents of this paper appeared in two parts in Bull. Soc. Sci. Lodz. Series 57, Ser. Res. on Deformations, 52, 37-65, 66-77 (2007)
Birth, life, and death of a dipolar supersolid
Creators: name: Sohmen, Maximilian
name: Politi, Claudia
name: Klaus, Lauritz
name: Chomaz, Lauriane
name: Mark, Manfred J.
name: Norcia, Matthew A.
name: Ferlaino, Francesca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In the short time since the first observation of supersolid states of ultracold dipolar atoms, substantial progress has been made in understanding the zero-temperature phase diagram and low-energy excitations of these systems. Less is known, however, about their finite-temperature properties, particularly relevant for supersolids formed by cooling through direct evaporation. Here, we explore this realm by characterizing the evaporative formation and subsequent decay of a dipolar supersolid by combining high-resolution in-trap imaging with time-of-flight observables. As our atomic system cools towards quantum degeneracy, it first undergoes a transition from thermal gas to a crystalline state with the appearance of periodic density modulation. This is followed by a transition to a supersolid state with the emergence of long-range phase coherence. Further, we explore the role of temperature in the development of the modulated state.
A STIS Survey for OVI Absorption Systems at 0.12 < z < 0.5 I.: The Statistical Properties of Ionized Gas
Creators: name: Thom, Christopher
name: Chen, Hsiao-Wen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have conducted a systematic survey for intervening OVI absorbers in available echelle spectra of 16 QSOs at z_QSO = 0.17-0.57. These spectra were obtained using HST/STIS with the E140M grating. Our search uncovered a total of 27 foreground OVI absorbers with rest-frame absorption equivalent width W_r(1031) > 25mA. Ten of these QSOs exhibit strong OVI absorbers in their vicinity. Our OVI survey does not require the known presence of Lya, and the echelle resolution allows us to identify the OVI absorption doublet based on their common line centroid and known flux ratio. We estimate the total redshift survey path, Δz, using a series of Monte-Carlo simulations, and find that Δz=1.66, 2.18, and 2.42 for absorbers of strength W_r = 30, 50 and 80mA, respectively, leading to a number density of dN(W > 50mA)/dz = 6.7 +/- 1.7 and dN(W > 30mA)/dz = 10.4 +/- 2.2. In contrast, we also measure dN/dz = 27 +/- 9 for OVI absorbers of W_r > 50mA at |Δv|< 5000 kms from the background QSOs. Using the random sample of OVI absorbers with well characterized survey completeness, we estimate a mean cosmological mass density of the OVI gas Ω(OVI)h = 1.7 +/- 0.3 x 10^-7. In addition, we show that <5% of OVI absorbers originate in underdense regions that do not show a significant trace of HI. Furthermore, we show that the neutral gas column N(HI) associated with these OVI absorbers spans nearly five orders of magnitude, and show moderate correlation with N(OVI). Finally, while the number density of OVI absorbers varies substantially from one sightline to another, it also appears to be inversely correlated with the number density of HI absorbers along individual lines of sight.
description: 12 pages. ApJ accepted
A Highly Collimated, Young and Fast CO(2-1) Outflow in OMC1 South
Creators: name: Zapata, Luis A.
name: Rodriguez, Luis F.
name: Ho, Paul T. P.
name: Zhang, Qizhou
name: Qi, Chunhua
name: Kurtz, S. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high angular resolution (~ 1''), sensitive CO(2-1) line observations of the region OMC1 South in the Orion Nebula made using the Submillimeter Array (SMA). We detect the CO(2-1) high velocity outflow that was first found by Rodriguez-Franco et al. (1999a) with the IRAM 30 m. Our observations resolve the outflow, whose velocity-integrated emission has a deconvolved width of 0.89'' \pm 0.06'' (490 AU) and a projected length of ~ 48'' (21,000 AU) with very high redshifted and blueshifted gas with velocities of about \pm 80 km/s. This outflow is among the most collimated (~ 3 degrees) and youngest outflows (600 yr) that have been reported. The data show that this collimated outflow has been blowing in the same direction during the last 600 yr. At high velocities, the CO(2-1) outflow traces an extremely collimated jet, while at lower velocities the CO emission traces an envelope possibly produced by entrainment of ambient gas. Furthermore, we also detect for the first time a millimeter wavelength continuum source possibly associated with a class I protostar that we suggest could be the possible exciting source for this collimated outflow. However, the bolometric luminosity of this source appears to be far too low to account for the powerful molecular outflow.
description: Submitted to Astrophysical Journal (Letters)
Coherent Retroreflective Metasurfaces
Creators: name: Cuesta, F. S.
name: Ptitcyn, G. A.
name: Mirmoosa, M. S.
name: Tretyakov, S. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Inhomogeneous metasurfaces have shown possibilities for unprecedented control of wave propagation and scattering. While it is conventional to shine a single incident plane wave from one side of these metastructures, illuminating by several waves simultaneously from both sides may enhance possibilities to control scattered waves, which results in additional functionalities and novel applications. Here, we unveil how using coherent plane-wave illumination of a properly designed inhomogeneous metasurface sheet it is possible to realize controllable retroreflection. We call these metasurfaces as "coherent retroreflectors" and explain the method for realizing them both in theory and practice. We show that coherent retroreflectors can be used for filtering undesired modes and creation of field-localization regions in waveguides. The latter application is in resemblance to bound states in the radiation continuum.
description: 6 pages, 4 figures
Acceleration of Large Margin Metric Learning for Nearest Neighbor Classification Using Triplet Mining and Stratified Sampling
Creators: name: Poorheravi, Parisa Abdolrahim
name: Ghojogh, Benyamin
name: Gaudet, Vincent
name: Karray, Fakhri
name: Crowley, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Metric learning is one of the techniques in manifold learning with the goal of finding a projection subspace for increasing and decreasing the inter- and intra-class variances, respectively. Some of the metric learning methods are based on triplet learning with anchor-positive-negative triplets. Large margin metric learning for nearest neighbor classification is one of the fundamental methods to do this. Recently, Siamese networks have been introduced with the triplet loss. Many triplet mining methods have been developed for Siamese networks; however, these techniques have not been applied on the triplets of large margin metric learning for nearest neighbor classification. In this work, inspired by the mining methods for Siamese networks, we propose several triplet mining techniques for large margin metric learning. Moreover, a hierarchical approach is proposed, for acceleration and scalability of optimization, where triplets are selected by stratified sampling in hierarchical hyper-spheres. We analyze the proposed methods on three publicly available datasets, i.e., Fisher Iris, ORL faces, and MNIST datasets.
description: The first two authors contributed equally to this work
title: Dagstuhl Reports, Table of Contents, Volume 6, Issue 10, 2016
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2017
Subjects: subject: Dagstuhl Reports
subject: Table of Contents
subject: Volume 6
subject: Issue 10
subject: 2016

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 6, Issue 10, pages i-ii
Bosonization, Pairing, and Superconductivity of the Fermionic Tonks-Girardeau Gas
Creators: name: Girardeau, M. D.
name: Minguzzi, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We determine some exact static and time-dependent properties of the fermionic Tonks-Girardeau (FTG) gas, a spin-aligned one-dimensional Fermi gas with infinitely strongly attractive zero-range odd-wave interactions. We show that the two-particle reduced density matrix exhibits maximal off-diagonal long-range order, and on a ring an FTG gas with an even number of atoms has a highly degenerate ground state with quantization of Coriolis rotational flux and high sensitivity to rotation and to external fields and accelerations. For a gas initially under harmonic confinement we show that during an expansion the momentum distribution undergoes a "dynamical bosonization", approaching that of an ideal Bose gas without violating the Pauli exclusion principle.
description: v3: 4 pages, 2 figures, revtex4. Section on the fermionic TG gas on a ring revised, emphasizing degeneracy of ground state for even N and resultant high sensitivity to external fields. Submitted to PRL
Pure polarization test of GW170814 and GW170817 using waveforms consistent with modified theories of gravity
Creators: name: Takeda, Hiroki
name: Morisaki, Soichiro
name: Nishizawa, Atsushi
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The physical degrees of freedom of a gravitational wave (GW) are imprints of the nature of gravity. We can test a gravity theory by searching for polarization modes beyond general relativity. The LIGO-Virgo collaboration analyzed several GW events in the O1 and O2 observing runs in the pure polarization framework, where they perform the Bayesian model selection between general relativity and the theory allowing only scalar or vector polarization modes. In this paper, we reanalyze the polarizations of GW170814 (binary black hole merger) and GW170817 (binary neutron star merger) in the improved framework of pure polarizations including the angular patterns of nontensorial radiation. We find logarithms of the Bayes factors of 2.775 and 3.636 for GW170814 in favor of the pure tensor polarization against pure vector and scalar polarizations, respectively. These Bayes factors are consistent with the previous results by the LIGO-Virgo collaboration, though the estimated parameters of the binaries are significantly biased. For GW170817 with the priors on the location of the binary from NGC4993, we find logarithms of the Bayes factors of 21.078 and 44.544 in favor of the pure tensor polarization against pure vector and scalar polarizations, respectively. These more strongly support GR, epecially compared to the scalar polarization, than the previous results by the LIGO-Virgo collaboration due to the location prior. In addition, by utilizing the orientation information of the binary from a gamma-ray burst jet, we find logarithms of the Bayes factor of 51.043 and 60.271 in favor of the pure tensor polarization against pure vector and pure scalar polarization, much improved from those without the jet prior.
description: 10 pages, 8 figures
Design of gender-sensitive print and online media for awareness raising activities
Creators: name: Humbert, Anne Laure
Publisher: name: Zenodo
Year: 2021
Subjects: Awareness raising
Gender equality

description: This document provides guidance and suggestions, in the form of infographics, for the use of innovative tools and materials in the GEARING-Roles project’s GEP implementing partners. These infographics are designed to support the process of deconstructing gender roles in higher education that is integral to the GEARING-Roles project. The infographics outline issues around women’s and men’s representation in higher education (and particularly STEM subjects), their working conditions, access to leadership positions and how gender is mainstreamed in research. They provide easily communicable data to communicate key gender-related issues to senior leaders and other key stakeholders within each of the GEP partners’ institutions, while also providing a useful benchmark and comparison with other contexts. These infographics will also be shared on social media to raise awareness of key issues in a broader context.
Cosmological Surprises from Braneworld models of Dark Energy
Creators: name: Sahni, Varun
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Properties of Braneworld models of dark energy are reviewed. Braneworld models admit the following interesting possibilities: (i) The effective equation of state can be w < -1 as well as w > -1. In the former case the expansion of the universe is well behaved at all times and the universe does not run into a future `Big Rip' singularity which is usually encountered by Phantom models. (ii) For a class of Braneworld models the acceleration of the universe can be a transient phenomenon. In this case the current acceleration of the universe is sandwiched between two matter dominated epochs. Such a braneworld does not have a horizon in contrast to LCDM and most Quintessence models. (iii) For a specific set of parameter values the universe can either originate from, or end its existence in a Quiescent singularity, at which the density, pressure and Hubble parameter remain finite, while the deceleration parameter and all invariants of the Riemann tensor diverge to infinity within a finite interval of cosmic time. (iv) Braneworld models of dark energy can loiter at high redshifts: $6 \lleq z \lleq 40$. The Hubble parameter decreasesduring the loitering epoch relative to its value in LCDM. As a result the age of the universe at loitering dramatically increases and this is expected to boost the formation of high redshift gravitationally bound systems such as $10^9 M_\odot$ black holes at $z \sim 6$ and lower-mass black holes and/or Population III stars at $z > 10$, whose existence could be problematic within the LCDM scenario. (v) Braneworld models with a time-like extra dimension bounce at early times thereby avoiding the initial `Big Bang singularity'. (vi) Both Inflation and Dark Energy can be successfully unified within a single scheme (Quintessential Inflation).
description: latex 21 pages, 11 figures; Invited talk at the 14th international workshop on General relativity and Gravitation, Yukawa Institute for Theoretical Physics, Nov 29-Dec 3, 2004, Kyoto, Japan. An important comment added in section 6; additional references
Lensing contribution to the 21cm intensity bispectrum
Creators: name: Kothari, Rahul
name: Maartens, Roy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Intensity maps of the 21cm emission line of neutral hydrogen are lensed by intervening large-scale structure, similar to the lensing of the cosmic microwave background temperature map. We extend previous work by calculating the lensing contribution to the full-sky 21cm bispectrum in redshift space. The lensing contribution tends to peak when equal-redshift fluctuations are lensed by a lower redshift fluctuation. At high redshift, lensing effects can become comparable to the contributions from density and redshift-space distortions.
description: 8 pages + 2 appendices + references. Version accepted by Class. Quant. Grav
Spatially dispersive finite-difference time-domain analysis of sub-wavelength imaging by the wire medium slabs
Creators: name: Zhao, Yan
name: Belov, Pavel A.
name: Hao, Yang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, a spatially dispersive finite-difference time-domain (FDTD) method to model wire media is developed and validated. Sub-wavelength imaging properties of the finite wire medium slabs are examined. It is demonstrated that the slab with its thickness equal to an integer number of half-wavelengths is capable of transporting images with sub-wavelength resolution from one interface of the slab to another. It is also shown that the operation of such transmission devices is not sensitive to their transverse dimensions, which can be made even comparable to the wavelength. In this case, the edge diffractions are negligible and do not disturb the image formation.
description: 14 pages, 13 figures, submitted to Optics Express
Wachsende Gemeinschaft, abwartende Kirchen?
Creators: name: Houtepen, Anton W. J.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 43 Nr. 1 (1994): Ökumenische Rundschau, Band 43, Heft 1
Asymptotic Scaling and Monte Carlo Data
Creators: name: Trivini, A.
name: Allton, C. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: It is a generally known problem that the behaviour predicted from perturbation theory for asymptotically free theories like QCD, i.e. asymptotic scaling, has not been observed in Monte Carlo simulations when the series is expressed in terms of the bare coupling g_0. This discrepancy has been explained in the past with the poor convergence properties of the perturbative series in the g_0. An alternative point of view, called Lattice-Distorted Perturbation Theory proposes that lattice artifacts due to the finiteness of the lattice spacing, a, cause the disagreement between Monte Carlo data and perturbative scaling. Following this alternative scenario, we fit recent quenched data from different observables to fitting functions that include these cut-off effects, confirming that the lattice data are well reproduced by g_0-PT with the simple addition of terms O(a^n).
description: Poster presented by A. Trivini at Lattice 2005, Dublin. 6 pages. PoS style
title: Dagstuhl Reports, Table of Contents, Volume 6, Issue 11, 2016
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2017
Subjects: subject: Dagstuhl Reports
subject: Table of Contents
subject: Volume 6
subject: Issue 11
subject: 2016

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 6, Issue 11, pages i-ii
BPS deformations of the Skyrme model
Creators: name: Queiruga, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study several deformations of the Skyrme model in three dimensions with self-dual sectors of arbitrary baryonic charge. We show that, for a family of background metrics as well as for a family of field dependent couplings, the model has one BPS sector, which may have any topological charge. We also study the gravitating case, where there are infinite BPS sectors, provided that a cosmological constant is added to the model.
description: 14 pages. No figures
MPEC 2024-T215 : 2013 UN5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.