cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The secrets to working in quantum
Creators: name: Bishop, Christopher
Publisher: name: Zenodo
Year: 2025

description: How do we inspire people interested in driving the development of quantum information science? By focusing broadly on how this technology will evolve and the range of skills needed to support it.

Undoubtedly, people with domain expertise in physics, software, and electrical engineering will be critical to the growth of this industry. Scientists will lead research into qubit design, software and hardware development, fabrication requirements for wiring harnesses, dilution refrigerators, control electronics, and many other related topics. 

However, as with any emerging business model, an entire ecosystem of adjacent skills will be needed. The workforce must include talented people with communications and marketing skills to drive broader adoption and benefit. Business development resources will be required to take these technologies to addressable markets. There are roles for people with skills in management consulting, project management, operations, legal, regulatory, and policy issues, as well as education. Lots of exciting career opportunities are emerging!

Christopher Bishop is a technology futurist, TEDx speaker and former IBMer. He has performed the role of emcee and panel moderator for several quantum events in London, Paris, Singapore, Montreal and Washinton. D.C. sponsored by The Economist and Quantum.Tech.

Chris hosted the Quantum Tech Pod series, where he interviewed 76 senior executives at leading quantum companies. His new series is called Qubit Confidential, and his latest episode features an interview with Zulfi Alam, Corporate Vice President of Quantum at Microsoft. The podcast is available on Spotify and Apple Music.
High-Throughput And Robust Optical Telescope Technologies For Space Laser Communications And Quantum Key Distribution
Creators: name: Daewook, Kim
Publisher: name: Zenodo
Year: 2025

description: Scalable and robust space telescope fore-optics designs and technologies are poised to revolutionize high-throughput space laser communication and quantum key distribution. At the University of Arizona, in collaboration with partnering institutions, various optical design, fabrication, and testing technologies have been developed. This work presents an optical design that enables a large-aperture telescope, significantly increasing throughput, along with a wide field of view to enhance system robustness. Additionally, several novel manufacturing approaches for realizing and scaling the system will be discussed, supported by demonstration outcomes and performance verification testing methods.

Daewook Kim is an associate professor of Optical Sciences and Astronomy at the University of Arizona. He has devoted his efforts to a multitude of space and ground-based large optical engineering projects. Kim's academic contributions include authoring over 350 journal/conference papers. He is a SPIE and OPTICA Fellow and elected to the SPIE Board of Directors for the term spanning 2024 to 2026.
AI and AI Agents in Quantum Chemistry Simulations
Creators: name: Chancé, Alain
Publisher: name: Zenodo
Year: 2025

description: Quantum dynamical simulations are computationally demanding, particularly for large systems and long-time evolutions. While quantum computing holds the potential to revolutionize this field, current quantum computers remain limited in scale, and algorithm development continues to present significant challenges. Artificial Intelligence (AI) has demonstrated remarkable success in diverse applications, including complex problem-solving and large-scale data analysis. Recent advances in AI, such as NVIDIA's universal function approximators, have enabled the development of AI applications capable of learning and replicating complex algorithmic behaviors. We propose leveraging AI to accelerate chemical design and quantum dynamical simulations. These AI applications can be trained on the inputs and outputs of quantum chemistry and dynamics algorithms, effectively replacing computationally expensive components. Furthermore, they can learn the scaling behavior of these algorithms, enabling extrapolation to larger systems. We present a proof-of-concept which demonstrates the potential of this approach. We successfully developed an AI application capable of generating vibrational wavefunctions for small molecules, such as CO₂, using only frequency and potential parameters as input.  This method bypasses the need for computationally intensive variational algorithms. This work highlights the promising synergy between quantum computing and AI in advancing the field of quantum dynamical simulations.

President MolKet SAS, a member of QED-C and QuIC, offering management consulting and AI services in quantum molecular dynamics, cryptography, neuromorphic computing, with cloud-based hybrid HPC and quantum computing platforms. Alain is the founder and CEO of Quantalain SASU and Alainquant LLC, both business management consulting startups.

 He is a Qiskit Advocate, an IEEE Senior Member, a society affiliate of the American Chemical Society (ACS), and a member of the American Physical Society (APS). Alain also serves on the Advisory Board Committee of the North America Technical Institute (NATI), Virginia, USA, which offers a professional certificate program in quantum computation.

 In 2024, he participated in the IBM Quantum Developer Conference and was a keynote co speaker at the World Artificial Intelligence Cannes Forum (WAICF), where he presented “Combining the Power of AI with Quantum.”
Noncontact Imaging of Ion Dynamics in Polymer Electrolytes with Time-Resolved Electrostatic Force Microscopy
Creators: name: Harrison, Jeffrey S.
name: Waldow, Dean A.
name: Cox, Phillip A.
name: Giridharagopal, Rajiv
name: Adams, Marisa L.
name: Richmond, Victoria L.
name: Modahl, Sevryn P.
name: Longstaff, Megan R.
name: Zhuravlev, Rodion A.
name: Ginger, David S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ionic transport processes govern performance in many classic and emerging devices, ranging from battery storage to modern mixed-conduction electrochemical transistors. Here, we study local ion transport dynamics in polymer films using time-resolved electrostatic force microscopy (trEFM). We establish a correspondence between local and macroscopic measurements using local trEFM and macroscopic electrical impedance spectroscopy (EIS). We use polymer films doped with lithium bis(trifluoromethane)sulfonimide (LiTFSI) as a model system where the polymer backbone has oxanorbornenedicarboximide repeat units with an oligomeric ethylene oxide side chain of length n. Our results show that the local polymer response measured in the time domain with trEFM follows stretched exponential relaxation kinetics, consistent with the Havriliak-Negami relaxation we measure in the frequency-domain EIS data for macroscopic samples of the same polymers. Furthermore, we show that the trEFM results capture the same trends as the EIS results-changes in ion dynamics with increasing temperature, increasing salt concentration, and increasing volume fraction of ethylene oxide side chains in the polymer matrix evolve with the same trends in both measurement techniques. We conclude from this correlation that trEFM data reflect, at the nanoscale, the same ionic processes probed in conventional EIS at the device level. Finally, as an example application for emerging materials syntheses, we use trEFM and infrared photoinduced force microscopy (PiFM) to image a novel diblock copolymer electrolyte for next-generation solid-state energy storage applications.
A List of References on Spacetime Splitting and Gravitoelectromagnetism
Creators: name: Bini, Donato
name: Jantzen, Robert T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Revised version to be published in the Proceedings of the Encuentros Relativistas Españoles, September, 2000 [ http://hades.eis.uva.es/EREs2000 ]
description: 22 pages, LaTeX article style. Please send corrections and additions to mailto:robert.jantzen@villanova.edu
Introduction to Quantum Computing: Computational Perspective
Creators: name: Chaurra, Freddy Alejandro
Publisher: name: Zenodo
Year: 2025

description: "Introduction to Quantum Computing from a Computational Perspective" provides an overview of quantum computing, focusing on its core principles and how it differs from classical computation. This talk will introduce the concept of qubits and their ability to exist in superposition, as well as the role of quantum gates in manipulating quantum information. From a computational point of view, we will explore how these unique properties enable new ways of processing information and solving problems. We will also discuss the challenges of developing quantum hardware and the potential applications of quantum computing in various fields.

Freddy Alejandro Chaurra Gutiérrez, graduated in Physics Engineering at the Universidad Tecnologica de Pereira (Colombia), Master in Computer Science (INAOE - Mexico), PhD in Computer Science in the area of Quantum Computing (INAOE - Mexico). He is currently working in the field of Quantum Information Processing and Quantum Machine Learning. He has given courses and talks on quantum computing, including general elements of computing and cybersecurity. He has participated as a speaker in different events, such as summer schools, computing meetings and international conferences.
MPEC 2024-U35 : DAILY ORBIT UPDATE (2024 October 22)
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.
Additional file 2: of Piscine orthoreovirus sequences in escaped farmed Atlantic salmon in Washington and British Columbia
Creators: name: Kibenge, Molly
name: Yingwei Wang
name: Gayeski, Nick
name: Morton, Alexandra
name: Beardslee, Kurt
name: McMillan, Bill
name: Kibenge, Frederick
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology
subject: 60506 Virology

description: Figure S1. The phylogenetic tree of all PRV S1 segment sequences analyzed in this study (175 sequences) was constructed using Maximum Likelihood analysis using PhyML [55]. An outgroup (GenBank accession number: AF059720) was used to determine its root, but the outgroup itself was not included in the tree. The bootstrapping procedure was applied for 1000 times and the branches with 70% or higher bootstrapping support values were marked: each bootstrapping value corresponds to the branch on the same vertical level. The classification of PRV into two genotypes (I and II) and four sub-genotypes (Ia, Ib, IIa, and IIb) is also shown. The PRV S1 segment sequences obtained in this study from the samples of escaped farmed Atlantic salmon and the market-bought fish labeled â Product of Icelandâ are highlighted in yellow (PDF 31 kb)
Entrevista a dois atletas portugueses que foram correr a maratona à Coreia do Norte
Creators: name: Teixeira, Sónia Nunes
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Neste estudo de caso será abordada a diferença entre duas culturas, sendo elas, a cultura portuguesa em contraste com a cultura norte coreana. Irá ser apresentado um estudo de caso em que dois atletas portugueses, André Leite e João Abreu, deslocaram-se até à Coreia do Norte com o intuito de participar num evento desse país: a Maratona. Este evento atrai milhares de participantes de todo o mundo e tornou-se numa boa ferramenta de propaganda do governo norte coreano. Os atletas, durante uma entrevista ao jornal “Expresso” e ao “Observador”, explicam como foi viver durante uns dias num país onde tudo é controlado pelo governo de Kim Jong-un. Ao longo deste trabalho irão ser abordados temas como a noção de cultura, a diferença entre cultura de massas e cultura popular, as práticas significantes e códigos culturais, a relação entre cultura e poder, os trânsitos culturais, o construtivismo social e a tradução como ação intercultural.
description: E- Revista de Estudos Interculturais , N.º 6 (2018)
Thermalization of magnetically trapped metastable helium
Creators: name: Browaeys, A.
name: Robert, A.
name: Sirjean, O.
name: Poupard, J.
name: Nowak, S.
name: Boiron, D.
name: Westbrook, C. I.
name: Aspect, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We have observed thermalization by elastic collisions of magnetically trapped metastable helium atoms. Our method directly samples the reconstruction of a thermal energy distribution after the application of an RF knife. The relaxation time of our sample towards equilibrium gives an elastic collision rate constant close to the unitarity limit.
description: 4 pages, 3 figures
Particle Velocity Distributions in Developing Magnetized Collisionless Shocks in Laser-Produced Plasmas
Creators: name: Schaeffer, D. B.
name: Fox, W.
name: Follett, R. K.
name: Fiksel, G.
name: Li, C. K.
name: Matteucci, J.
name: Bhattacharjee, A.
name: Germaschewski, K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present the first laboratory observations of time-resolved electron and ion velocity distributions in forming, magnetized collisionless shocks. Thomson scattering of a probe laser beam was used to observe the interaction of a laser-driven, supersonic piston plasma expanding through a magnetized ambient plasma. From the Thomson-scattered spectra we measure time-resolved profiles of electron density, temperature, and ion flow speed, as well as spatially-resolved magnetic fields from proton radiography. We observe direct evidence of the sweeping up and acceleration of ambient ions, magnetic field compression, and the subsequent deformation of the piston ion flow, key steps in shock formation. Even before the shock has fully formed, we observe strong density compressions and electron heating associated with the pile up of piston ions. The results demonstrate that laboratory experiments can probe particle velocity distributions relevant to collisionless shocks, and thus complement similar measurements undertaken by spacecraft missions.
EIRENE PPP D3.2 - ELSI guidelines (currently being reviewed by the EC)
Creators: name: Pirrone, Nicola
Publisher: name: Zenodo
Year: 2023

description: This deliverable represents the starting point for the ELSI (Ethics, Legal and Societal Implication) guidelines that will be adopted for the Research Infrastructure for EnvIRonmental Exposure assessmeNt in Europe (EIRENE RI).
Uroptychus zeidleri Ahyong & Poore 2004
Creators: name: Baba, Keiji
name: Macpherson, Enrique
name: Poore, Gary C. B.
name: Ahyong, Shane T.
name: Bermudez, Adriana
name: Cabezas, Patricia
name: Lin, Chia-Wei
name: Nizinski, Martha
name: Rodrigues, Celso
name: Schnabel, Kareen E.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Chirostylidae
Uroptychus
Uroptychus zeidleri

description: Uroptychus zeidleri Ahyong & Poore, 2004 Uroptychus zeidleri Ahyong & Poore, 2004a: 82, fig. 26 (W of Richardson Point, Tasmania, 520 m). — Poore, 2004: 227, fig. 62e (compilation). — Baba, 2005: 232 (synonymies, key). Type data: holotype, ovigerous female, SAMA C6066. Type locality: W of Richardson Point, Tasmania, 41°15´S, 144°08´E, 520 m.
description: Published as part of Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso & Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura-families Chirostylidae, Galatheidae and Kiwaidae), pp. 1-220 in Zootaxa 1905 (1) on page 46, DOI: 10.11646/zootaxa.1905.1.1, http://zenodo.org/record/5134587
description: {"references": ["Poore, G. C. B. (2004) Marine decapod Crustacea of southern Australia. A guide to identification (with chapter on Stomatopoda by Shane Ahyong) CSIRO Publishing, Melbourne, 574 pp.", "Ahyong, S. T. & Poore, G. C. B. (2004 a) The Chirostylidae of southern Australia (Crustacea, Decapoda, Anomura). Zootaxa, 436, 1 - 88.", "Baba, K. (2005) Deep-sea chirostylid and galatheid crustaceans (Decapoda: Anomura) from the Indo-West Pacific, with a list of species. Galathea Reports, 20, 1 - 317."]}
Composite fermions in a long-range random magnetic field: Quantum Hall effect versus Shubnikov-de Haas oscillations
Creators: name: Mirlin, A. D.
name: Polyakov, D. G.
name: Woelfle, P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study transport in a smooth random magnetic field, with emphasis on composite fermions (CF) near half-filling of the Landau level. When either the amplitude of the magnetic field fluctuations or its mean value $\bar B$ is large enough, the transport is of percolating nature. While at $\bar{B}=0$ the percolation effects enhance the conductivity $σ_{xx}$, increasing $\bar B$ (which corresponds to moving away from half-filling for the CF problem) leads to a sharp falloff of $σ_{xx}$ and, consequently, to the quantum localization of CFs. We demonstrate that the localization is a crucial factor in the interplay between the Shubnikov-de Haas and quantum Hall oscillations, and point out that the latter are dominant in the CF metal.
description: 4 pages, RevTeX
O primeiro genocídio do Séc. XX
Creators: name: Cardoso, Rui Filipe Gesto
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo recai sobre o genocídio das tribos Herero e Namaqua da Namíbia por parte dos alemães. Várias pessoas, inclusive o Papa Francisco, referem-se ao armistício arménio como sendo o primeiro genocídio do século passado, no entanto, isso não corresponde à realidade. Com este trabalho pretendo prestar a minha homenagem não só às tribos indígenas da Namíbia, que sofreram diversas atrocidades por parte dos alemães, como aos restantes povos africanos que foram subjugados e muitos deles aniquilados às mãos dos Europeus. Também, vou demonstrar as várias e divergentes visões por parte de cada povo; fazer uma comparação/confronto entre os povos “cultos/civilizados” vs “incultos/selvagens”; e demonstrar a perspetiva elitista, racista e preconceituosa da sociedade Europeia no início do século XX. Este é um tema que não pode nem deve ser remetido ao esquecimento, pois retrata um acontecimento que marcou vilmente um país, um povo, uma cultura e que, ainda nos dias de hoje, sofre repercussões dessas atrocidades; algo que está enraizado não só no dia-a-dia desse mesmo povo, mas também na sua mentalidade.
description: E- Revista de Estudos Interculturais , N.º 6 (2018)
Broken Hermiticity phase transition in Bose-Hubbard model
Creators: name: Znojil, Miloslav
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A new version of the change of the "phase" (i.e., of the set of observable characteristics) of a quantum system is proposed. In a general scenario the evolution is assumed generated, before the phase transition, by some standard Hermitian Hamiltonian $H^{(before)}$, and, after the phase transition, by one of the recently very popular non-standard, non-Hermitian (but hiddenly Hermitian, i.e., still unitarity-guaranteeing) Hamiltonians $H^{(after)}$. For consistency, a smoothness of matching between the two operators as well as between the related physical Hilbert spaces must be guaranteed. The feasibility of the idea is illustrated via the two-mode $(N-1)-$bosonic Bose-Hubbard Hamiltonian. In $H^{(before)}=H^{(BH)}(\varepsilon)$ we use the decreasing real $\varepsilon^{(before)} \to 0$. In the hiddenly Hermitian continuation $H^{(after)}=H^{(BH)}(\tilde{\varepsilon})$ the imaginary part of the purely imaginary $\tilde{\varepsilon}^{(after)}$ grows. The smoothness of the transition occurring at the interface $\varepsilon=\tilde{\varepsilon}=0$ is then guaranteed by an {\it ad hoc\,} amendment of the inner product in Hilbert space "after". The trivial Hilbert-space metric $Θ^{(before)}=I$ must match $Θ^{(after)} \neq I$ smoothly. This is confirmed and illustrated by the explicit constructions of a few $Θ^{(after)}$s in closed form.
description: 27 pp, 2 figures
Braneworld with a Star Extra Dimension and a Large Number of Small Leaves
Creators: name: Nortier, Florian
Publisher: name: Zenodo
Year: 2021
Subjects: subject: Beyond the Standard Model of Particle Physics
subject: Large Extra Dimensions
subject: Baneworlds
subject: Quantum Graphs
subject: Neutrino Physics
subject: Hidden Sector
subject: https://ntrs.nasa.gov/search?q=particle%20physics&subjectCategory=PHYSICS,%20ATOMIC,%20MOLECULAR,%20AND%20NUCLEAR

description: Webinar (November 9, 2020), Theoretical Particle Physics Group, Carleton University, Ottawa, Canada
Additional file 1: of Piscine orthoreovirus sequences in escaped farmed Atlantic salmon in Washington and British Columbia
Creators: name: Kibenge, Molly
name: Yingwei Wang
name: Gayeski, Nick
name: Morton, Alexandra
name: Beardslee, Kurt
name: McMillan, Bill
name: Kibenge, Frederick
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: 60506 Virology

description: Table S1. Piscine reovirus segment S1 nucleotide sequences analysed in this study [1, 3, 4, 6â 8, 10, 16â 18, 24, 49â 54]. (DOC 298 kb)
Hemidactylus frenatus
Creators: name: Grismer, L. Lee
name: Youmans, Timothy M.
name: Wood, Perry L.
name: Jr
name: Grismer, Jesse L.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Squamata
Gekkonidae
Hemidactylus
Hemidactylus frenatus

description: Hemidactylus frenatus.
– Hemidactylus frenatus is an extremely adept over-water disperser, human facilitated (Bauer, 1994) or otherwise. Many authors have documented this species’ relatively recent arrival all over the world. Its colonizing abilities are illustrated well within the Seribuat Archipelago, being that it occurs on at least 41 of the 62 islands. Some of these islands are little more than barren rocks (i.e., P. Tokong Bahara) whereas others are large and environmentally diverse (i.e., P. Tioman). Two other adept colonizing geckos, Gehyra mutilata and Lepidodactylus lugubris, also occur within the Seribuat Archipelago. The latter shows some interesting distribution patterns with respect to H. frenatus which suggests that on some small islands, competition between these two species may be intense. In the Lima group, eight small islands are inhabited by one or the other of these two species (Table 2) and they basically alternate in occurrence in a north to south directional trend (P. Sanggol – L. lugubris; P. Lima Kecil and P. Lima Besar – H. frenatus; P. Tokong Raket – L. lugubris; P. Tokong Condong and P. Tokong Belalai – H. frenatus; and P. Tokong Chupak – L. lugubris) suggesting that whichever species colonizes the island first will eventually exclude the other species. On P. Sepoi, this apparent phenomenon is even more striking. Here, H. frenatus occupies every conceivable niche (terrestrial and arboreal) within the island’s interior and occurs in an extremely high density. Lepidodactylus lugubris, however, occurs only on the periphery of the island amongst the larger boulders in the splash zone within the intertidal areas. On P. Layak, H. frenatus is also found in the intertidal areas and L. lugubris has not been found on that island. Similar observations have been made on islands in the South Pacific (Petren & Case, 1996). Yet on P. Mawar, a relatively large island (Table 1) with a high degree of environmental diversity, H. frenatus and L. lugubris can be found syntopically beneath the bark of dead trees in the mangrove forest.
description: Published as part of Grismer, L. Lee, Youmans, Timothy M., Wood, Perry L., Jr & Grismer, Jesse L., 2006, Checklist Of The Herpetofauna Of The Seribuat Archipelago, West Malaysia With Comments On Biogeography, Natural History, And Adaptive Types, pp. 157-180 in Raffles Bulletin of Zoology 54 (1) on page 171, DOI: 10.5281/zenodo.13244793
Analytical Results For The Steady State Of Traffic Flow Models With Stochastic Delay
Creators: name: Wang, Bing-Hong
name: Wang, Lei
name: Hui, P. M.
name: Hu, Bambi
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Exact mean field equations are derived analytically to give the fundamental diagrams, i.e., the average speed - car density relations, for the Fukui-Ishibashi one-dimensional traffic flow cellular automaton model of high speed vehicles $(v_{max}=M>1) $ with stochastic delay. Starting with the basic equation describing the time evolution of the number of empty sites in front of each car, the concepts of inter-car spacings longer and shorter than $M$ are introduced. The probabilities of having long and short spacings on the road are calculated. For high car densities $(ρ\geq 1/M)$, it is shown that inter-car spacings longer than $M$ will be shortened as the traffic flow evolves in time, and any initial configurations approach a steady state in which all the inter-car spacings are of the short type. Similarly for low car densities $(ρ\leq 1/M)$, it can be shown that traffic flow approaches an asymptotic steady state in which all the inter-car spacings are longer than $M-2$. The average traffic speed is then obtained analytically as a function of car density in the asymptotic steady state. The fundamental diagram so obtained is in excellent agreement with simulation data.
description: 12 pages, latex, 2 figures
A Numerical Investigation on the High-Frequency Geometry of Spherical Random Eigenfunctions
Creators: name: Fantaye, Yabebal
name: Cammarota, Valentina
name: Marinucci, Domenico
name: Todino, Anna Paola
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 60G60, 62M15, 53C65, 42C10, 33C55

description: A lot of attention has been drawn over the last few years by the investigation of the geometry of spherical random eigenfunctions (random spherical harmonics) in the high frequency regime, i.e ., for diverging eigenvalues. In this paper, we present a review of these results and we collect for the first time a comprehensive numerical investigation, focussing on particular on the behaviour of Lipschitz-Killing curvatures/Minkowski functionals (i.e., the area, the boundary length and the Euler-Poincaré characteristic of excursion sets) and on critical points. We show in particular that very accurate analytic predictions exist for their expected values and variances, for the correlation among these functionals, and for the cancellation that occurs for some specific thresholds (the variances becoming an order of magnitude smaller - the so-called Berry's cancellation phenomenon). Most of these functionals can be used for important statistical applications, for instance in connection to the analysis of Cosmic Microwave Background data.
The effects of weak disorders on Quantum Hall critical points
Creators: name: Ye, Jinwu
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the consequences of random mass, random scalar potential and random vector potential on the line of clean fixed points between integer/fractional quantum Hall states and an insulator. This line of fixed points was first identified in a clean Dirac fermion system with both Chern-Simon coupling and Coulomb interaction in Phys. Rev. Lett. {\bf 80}, 5409 (1998). By performing a Renormalization Group analysis in 1/N (N is the No. of species of Dirac fermions) and the variances of three disorders $Δ_{M}, Δ_{V}, Δ_{A}$, we find that $Δ_{M}$ is irrelevant along this line, both $Δ_{A}$ and $Δ_{V}$ are marginal. With the presence of all the three disorders, the pure fixed line is unstable. Setting Chern-Simon interaction to zero, we find one non-trivial line of fixed points in $(Δ_{A}, w)$ plane with dynamic exponent z=1 and continuously changing $ν$, it is stable against small $(Δ_{M},Δ_{V})$ in a small range of the line $1< w < 1.31$, therefore it may be relevant to integer quantum Hall transition. Setting $Δ_{M} =0$, we find a fixed plane with z=1, the part of this plane with $ν> 1$ is stable against small $Δ_{M}$, therefore it may be relevant to fractional quantum Hall transition.
description: 16 pages, 19 figures
Intermediate-Mass Black Hole Feedback in Dwarf Galaxies: a View from Cosmological Simulations
Creators: name: Barai, Paramita
name: Pino, Elisabete M. de Gouveia Dal
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Black holes are usually observed to be of stellar-mass or supermassive. By natural extension, there should be a population of Intermediate-Mass Black Holes (IMBHs: with mass between $100$ to $10^6 M_{\odot}$) in the Universe; which has started to been observed. An exciting claim has been made recently by Silk (2017): that early feedback by IMBHs in gas-rich dwarf galaxies at $z=5-8$, can potentially solve multiple dwarf galaxy problems within the $Λ$-cold-dark-matter cosmology. We are performing Cosmological Hydrodynamical Simulations of $(2 Mpc)^3$ volumes, starting from $z=100$, to test the case for IMBHs in Dwarf Galaxies. Black holes of mass $1000 M_{\odot}$ are seeded inside halos when they reach a mass of $10^7 M_{\odot}$. The black holes grow by accretion of gas from their surroundings and by merger with other black holes, and consequently eject feedback energy. We analyze the simulation output in post-processing to study the growth of the first IMBHs, and their impact on star-formation. Our conclusions, based on numerical simulation results, support the phenomenological ideas made by Silk (2017). IMBHs at the centers of dwarf galaxies can be a strong source of feedback to quench star-formation and generate outflows. At the same time, these IMBHs form the missing link between stellar-mass and supermassive BHs.
description: 4 pages, Proceedings of Talk presented at the IAU Symposium 342 - "Perseus in Sicily: from black hole to cluster outskirts", held at Noto (Sicily, Italy), 2018 May 13-18
New family of inhomogeneous $γ$-law cosmologies: example of gravitational waves in a homogeneous $p=\varrho/3$ background
Creators: name: Senovilla, Jose M. M.
name: Vera, Raul
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present an explicit three-parameter class of $p=γ\varrho$, ($-1/3\leqγ<1$), cosmological models admitting a two-dimensional group $G_{2}$ of isometries acting on spacelike surfaces. The family is self-similar in the sense that it has a further homothetic vector field and it contains subfamilies of both (previously unknown) tilted and non-tilted Bianchi models with that equation of state. This is the first algebraically general class of solutions of this kind including dust inhomogeneous solutions. The whole class presents a universal spacelike big-bang singularity in the finite past. More interestingly, the case $p=\varrho /3$ constitutes a new two-parameter inhomogeneous subfamily which can be viewed as a Bianchi V background with a gravitational wave travelling orthogonally to the surfaces of transitivity of the $G_{2}$ group. This wave generates the {\it inhomogeneity} of the spacetime and is related to the sound waves {\it tilting} the perfect fluid. It seems to be the first explicit exact example of a gravitational wave travelling along a homogeneous background that has a realistic equation of state $p=\varrho /3$.
description: LaTeX, 25 pages, 3 figures. Uses epsfig package. One reference added; minor changes. To appear in Phys.Rev.D
Étude transversale sur la gestion des Dasri auprès d’un échantillon de médecins généralistes libéraux de la Loire
Creators: name: Chazal, Julie
name: Berthelot, Philippe
name: Liebart, Sandra
Publisher: name: Health & Co
Year: 2017
Subjects: DÉCHET D'ACTIVITÉ DE SOINS À RISQUE INFECTIEUX
GESTION DE L'ENVIRONNEMENT
HYGIÈNE HOSPITALIÈRE
MÉDECINE GÉNÉRALE

description: Si la gestion des déchets d’activité de soins à risque infectieux (Dasri) en milieu institutionnel est bien étudiée, sa gestion en milieu ambulatoire reste plus hétérogène. L’objectif de l’étude était d’évaluer les pratiques des médecins généralistes ligériens concernant la gestion des Dasri, puis secondairement d’évaluer les freins et les facteurs favorisants relatifs à une pratique adaptée à la législation. Il s’agissait d’une enquête transversale par questionnaire téléphonique auprès des médecins généralistes ligériens. Cent trente-huit médecins ont répondu au questionnaire correspondant à un taux de réponse de 46,5 %. Les objets piquants, coupants et tranchants étaient déposés dans 96 % des cas dans un contenant adapté avec norme, alors que seulement 67 % des déchets solides ou mous souillés par du sang ou un liquide biologique l’étaient. La collecte des médecins au cabinet par un prestataire de services (78 %) est source de respect de la législation (p ≤ 0,001) et semble minorer la survenue d’accident d’exposition au sang des médecins (p = 0,04). Soixante-cinq pour cent déclaraient posséder le document de traçabilité réglementaire. Les freins semblent en lien avec le mode d’exercice des praticiens ou leur durée d’installation. Les formations étaient un facteur favorisant pour les praticiens gérant à plusieurs (p = 0,02) ou installés depuis moins de 20 ans (p ≤ 0,01). L’étude permet de faire un état des lieux des pratiques à une échelle locale en posant des axes de réflexion pour des travaux futurs.
A re-establishing jet during an X-ray re-brightening of the Be/X-ray binary Swift J0243.6+6124
Creators: name: Eijnden, J. van den
name: Degenaar, N.
name: Russell, T. D.
name: Santisteban, J. V. Hernández
name: Wijnands, R.
name: Miller-Jones, J. C. A.
name: Escorial, A. Rouco
name: Sivakoff, G. R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Transient Be/X-ray binary systems, wherein a compact object accretes from a Be-companion star, can show giant and periastron outbursts. During the decay of their giant outbursts, some Be/X-ray binaries also show X-ray re-brightenings, the origin of which is not understood. Recently, we presented the discovery of a jet from a neutron star Be/X-ray binary, observed during the giant outburst of Swift J0243.6+6124. Here, we present continued radio monitoring of its 2017/2018 giant outburst decay and a re-brightening of this source. During the former, we observe a radio flare with a steep radio spectrum, possibly caused by interactions between discrete ejecta colliding with the pre-existing jet or the surrounding medium. During the X-ray re-brightening, we observe the radio jet turning on and off within days. Surprisingly, this re-establishing jet is as bright in radio as at the peak of the super-Eddington giant outburst, despite more than two orders of magnitude lower X-ray luminosity. In addition, the jet is only observed when the X-ray luminosity exceeds approximately $2\times 10^{36} (D/5\rm kpc)^2$ erg/s. We discuss how such an X-ray threshold for jet launching might be related to the presence of a magnetic centrifugal barrier at lower mass accretion rates. We also discuss the implications of our results for the launch of jets from strongly magnetized neutron stars, and explore future avenues to exploit the new possibility of coordinated X-ray/radio studies of neutron star Be/X-ray binaries.
description: 12 pages, 3 figures. Accepted for publication in MNRAS
Additional file 3: of Well siblingsâ experiences of living with a child following a traumatic brain injury: a systematic review protocol
Creators: name: Hill, Katie
name: Brenner, Maria
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: PRESS initiative [62]. (DOCX 14 kb)
Manter a minha cultura ou inserir-me na que vivo?
Creators: name: Sobolyeva, Maryna
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo analisa o filme “Spanglish” e o choque entre culturas nele presente – mexicana e americana. Aborda-se a identidade emigrante e a luta entre manter a sua cultura “original” ou adotar a nova cultura de modo a integrar-se na sociedade. A construção da identidade da personagem principal – uma mãe emigrante – permite perceber os estereótipos concebidos acerca da cultura latina.
description: E- Revista de Estudos Interculturais , N.º 6 (2018)
Lophophaena laticeps Jorgensen, Kurihara and Matsuoka 2010
Creators: name: Trubovitz, Sarah
name: Renaudie, Johan
name: Lazarus, David
name: Noble, Paula
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Chromista
Radiozoa
Polycystina
Nassellaria
Plagiacanthidae
Lophophaena
Lophophaena laticeps

description: Lophophaena laticeps (Jørgensen, 1905) Kurihara and Matsuoka, 2010
Plate 23, Figs. 6A – 7B.
 Lithomelissa laticeps n. sp., Jørgensen, 1905, pl. 16, fig. 84.
 Lithomelissa laticeps Jørgensen, Schröder, 1914, text-figs. 58–59.
 Lithomelissa laticeps Jørgensen, Benson, 1966, pl. 24, figs. 14–15.
 non Botryopera laticeps Jørgensen, Petrushevskaya, 1975, pl. 20, fig. 3.
 Lithomelissa laticeps Jørgensen, Benson, 1983, pl. 9, fig. 3.
 Lophophaena laticeps Jørgensen, Kurihara and Matsuoka, 2010, fig. 3.7.
 Lithomelissa laticeps Jørgensen, Trubovitz et al., 2020, supplementary data 7.
 Remarks. This species was originally described under the genus Lithomelissa, but it does not have an apical spine passing freely through the cephalis and thus does not satisfy modern usage of this genus definition. Kurihara and Matsuoka (2010) listed this species in Lophophaena but did not discuss the genus transfer. We agree that this species best fits the definition of Lophophaena because the cephalis is relatively high with maximum width near the top, and the apical spine runs along the shell wall.
 This species could be closely related to some morphotypes of Stichopilium bicorne, the notoriously cryptic group that is characterized by two strong spines running along opposite sides of the cephalis and has a wide variety of thorax shapes and sizes. In this paper, Plate 23, Figs. 8A–8B illustrate one such morphotype that is often identified (sometimes tentatively) as Stichopilium bicorne in the literature (e.g., Lazarus 1992, pl. 9, fig. 14). Comparison of this morphotype with Lophophaena laticeps (Pl. 23, Figs. 6A – 7B) yields some striking similarities, such as the structure of the cephalis and pronounced lobe on the dorsal side of the neck area, suggesting a possible link between Stichopilium bicorne and the lophophaenids. However, even the most lophophaenid-like morphotype of Stichopilium bicorne figured in pl. 23, figs. 8A–B, differs in that it has a more reduced cephalis with relatively longer cephalic horns, lacks buttressing of the cephalic horns, and has a proportionally larger lobe in the neck region. Thus, we are not suggesting these specimens are conspecific, but rather that they could have an evolutionary relationship that justifies further study to potentially resolve this enigmatic group.
 Range. Early Pliocene, EEP (Table 1).
description: Published as part of Trubovitz, Sarah, Renaudie, Johan, Lazarus, David & Noble, Paula, 2022, Late Neogene Lophophaenidae (Nassellaria, Radiolaria) from the eastern equatorial Pacific, pp. 1-158 in Zootaxa 5160 (1) on page 61, DOI: 10.11646/zootaxa.5160.1.1, http://zenodo.org/record/10544058
Estudos Interculturais no filme Rapaz de Pijama às Riscas
Creators: name: Gomes, João Luís Ferreira
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: No âmbito da Unidade Curricular de Estudos Interculturais foi proposta, pela professora Carla Avelino, a elaboração do presente trabalho sobre a análise de um filme do ponto de vista da noção de cultura e das representações interculturais, temas abordados no decorrer da disciplina. A metodologia utilizada para o desenvolvimento deste trabalho foi a seleção de um filme e, posterior, análise do mesmo em relação aos temas abordados nas aulas. O filme selecionado foi “The Boy in the Striped Pyjamas” de John Boyde (O rapaz de pijamas às riscas).
description: E- Revista de Estudos Interculturais , N.º 6 (2018)
Low-temperature coherence in the periodic Anderson model: Predictions for photoemission of heavy Fermions
Creators: name: Tahvildar-Zadeh, A. N.
name: Jarrell, M.
name: Freericks, J. K.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present numerically exact predictions of the periodic and single-impurity Anderson models to address photoemission experiments on heavy Fermion systems. Unlike the single impurity model the lattice model is able to account for the enhanced intensity, dispersion, and apparent weak temperature dependence of the Kondo resonant peak seen in recent controversial photoemission experiments. We present a consistent interpretation of these results as a crossover from the impurity regime to an effective Hubbard model regime described by Nozieres.
description: 4 pages, 3 figures
Molecular Weight Dependence of Spreading Rates of Ultrathin Polymeric Films
Creators: name: Valignat, M. P.
name: Oshanin, G.
name: Villette, S.
name: Cazabat, A. M.
name: Moreau, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study experimentally the molecular weight $M$ dependence of spreading rates of molecularly thin precursor films, growing at the bottom of droplets of polymer liquids. In accord with previous observations, we find that the radial extension R(t) of the film grows with time as R(t) = (D_{exp} t)^{1/2}. Our data substantiate the M-dependence of D_{exp}; we show that it follows D_{exp} \sim M^{-γ}, where the exponent γis dependent on the chemical composition of the solid surface, determining its frictional properties with respect to the molecular transport. In the specific case of hydrophilic substrates, the frictional properties can be modified by the change of the relative humidity (RH). We find that γ\approx 1 at low RH and tends to zero when RH gets progressively increased. We propose simple theoretical arguments which explain the observed behavior in the limits of low and high RH.
description: 4 pages, 2 figures, to appear in PRL
Global Correlations Between the Radio Continuum, Infrared and CO Emission in Dwarf Galaxies
Creators: name: Filho, Mercedes E.
name: Tabatabaei, Fatemeh S.
name: Almeida, Jorge Sanchez
name: Munoz-Tunon, Casiana
name: Elmegreen, Bruce
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Correlations between the radio continuum, infrared and CO emission are known to exist for several types of galaxies and across several orders of magnitude. However, the low-mass, low-luminosity and low-metallicity regime of these correlations is not well known. A sample of metal-rich and metal-poor dwarf galaxies from the literature has been assembled to explore this extreme regime. The results demonstrate that the properties of dwarf galaxies are not simple extensions of those of more massive galaxies; the different correlations reflect different star-forming conditions and different coupling between the star formation and the various quantities. It is found that dwarfs show increasingly weaker CO and infrared emission for their luminosity, as expected for galaxies with a low dust content, slower reaction rates, and a hard ionizing radiation field. In the higher-luminosity dwarf regime (L_1.4GHz > 10^27 W, where L_1.4GHz ~ 10^29 W for a Milky Way star formation rate of ~1 M_sun yr^-1), the total and non-thermal radio continuum emission appear to adequately trace the star formation rate. A breakdown of the dependence of the (Halpha-based) thermal, non-thermal, and, hence, total radio continuum emission on star formation rate occurs below L_1.4GHz ~ 10^27 W, resulting in a steepening or downturn of the relations at extreme low luminosity. Below L_FIR ~ 10^36 W ~ 3 x 10^9 L_sun, the infrared emission ceases to adequately trace the star formation rate. A lack of a correlation between the magnetic field strength and the star formation rate in low star formation rate dwarfs suggests a breakdown of the equipartition assumption. As extremely metal-poor dwarfs mostly populate the low star formation rate and low luminosity regime, they stand out in their infrared, radio continuum and CO properties.
description: accepted for publication in MNRAS
A expansão ultramarina portuguesa –a presença feminina a bordo das embarcações
Creators: name: Rocha, Joana
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este texto pretende compreender o envolvimento e o papel das mulheres na expansão portuguesa. Estudando a dualidade entre as “mulheres que ficam” – tentando garantir o normal funcionamento da sociedade – e “mulheres que partem” – para colonizar ou por vontade própria. Perceber quais as mulheres a quem era permitido a entrada a bordo das naus e aquelas que clandestinamente se aventuravam, percebendo as consequências para tal desfaçatez. Nesta sequência, o texto explora a representação da mulher como estratégia para a colonização das novas terras, assim como a vida a bordo das embarcações e o papel da religião nestas viagens.
description: E- Revista de Estudos Interculturais , N.º 6 (2018)
High-precision calculations of electric-dipole amplitudes for transitions between low-lying levels of Mg, Ca, and Sr
Creators: name: Porsev, S. G.
name: Kozlov, M. G.
name: Rakhlina, Yu. G.
name: Derevianko, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: To support efforts on cooling and trapping of alkaline-earth atoms and designs of atomic clocks, we performed ab initio relativistic many-body calculations of electric-dipole transition amplitudes between low-lying states of Mg, Ca, and Sr. In particular, we report amplitudes for ^1P_1 --> ^1S_0, ^3S_1, ^1D_2$, for ^3P_1 --> ^1S_0, ^1D_2, and for ^3P_2 --> ^1D_2 transitions. For Ca, the reduced matrix element <4s4p, ^1P_1 ||D|| 4s^2, ^1S_0> is in a good agreement with a high-precision experimental value deduced from photoassociation spectroscopy [Zinner et al., Phys.Rev.Lett., v.85, 2292 (2000)]. An estimated uncertainty of the calculated lifetime of the (3s3p ^1P_1) state of Mg is a factor of three smaller than that of the most accurate experiment. Calculated binding energies reproduce experimental values within 0.1-0.2%.
description: 12 pages, 1 figure, submitted to Phys.Rev.A