cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An analysis of spectra in the Red Rectangle nebula
Creators: name: Zagury, Frederic
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents an analysis of a series of spectra in the Red Rectangle nebula. Only the reddest part of the spectra can safely be attributed to light from the nebula, and indicates Rayleigh scattering by the gas, in conformity with the large angles of scattering involved and the proximity of the star. In the blue, light from HD44179, refracted or scattered in the atmosphere, dominates the spectra. This paper questions the reliability of ground-based observations of extended objects in the blue.
description: 25 figures
The Effects of Art Teaching Techniques on Art Learning Achievement of Primary School Students in Nakhon Si Thammarat Province
Creators: name: Ubon Sanpatchayapong
name: Preecha Srimook
Publisher: name: Rangsit University, Pathum Thani, Thailand
Year: 2014
Subjects: art teaching techniques,primary school students,art learning achievement

description: 2, 1, RANGSIT JOURNAL OF EDUCATIONAL STUDIES
Basic Information and Communication Technology Competency Development for Teachers and Schools in Preparation for ASEAN Commencement
Creators: name: Supinda Lertlit
Publisher: name: Rangsit University, Pathum Thani, Thailand
Year: 2014
Subjects: Information and Communication Technology,ICT competency,school educators,school administrators,teachers' professional development

description: 2, 1, RANGSIT JOURNAL OF EDUCATIONAL STUDIES
Doing Repair in Native - Non - Native Talk:A Conversation Analytic Study of Thai - English Interaction
Creators: name: Mayi, Luqman
Publisher: name: Rangsit University, Pathum Thani, Thailand
Year: 2014
Subjects: repair activity,NS/NNS interactions,comprehension,misunderstanding

description: 2, 1, RANGSIT JOURNAL OF EDUCATIONAL STUDIES
Distillation Protocols that Involve Local Distinguishing: Composing Upper and Lower Bounds on Locally Accessible Information
Creators: name: De, Aditi Sen
name: Sen, Ujjwal
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We find a universal lower bound on locally accessible information for arbitrary bipartite quantum ensembles, when one of the parties is two-dimensional. In higher dimensions and in higher number of parties, the lower bound is on accessible information by separable operations. We show that for any given density matrix (of arbitrary number of parties and dimensions), there exists an ensemble, the ''Scrooge ensemble'', which averages to the given density matrix and whose locally accessible information saturates the lower bound. Moreover, we use this lower bound along with a previously obtained upper bound to obtain bounds on the yield of singlets in distillation protocols that involve local distinguishing.
description: 4 pages, 1 eps figure, Revtex4; v2: important additions
Derive Lovelock Gravity from String Theory in Cosmological Background
Creators: name: Wang, Peng
name: Wu, Houwen
name: Yang, Haitang
name: Ying, Shuxuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It was proved more than three decades ago, that the first order $α'$ correction of string effective theory could be written as the Gauss-Bonnet term, which is the quadratic term of Lovelock gravity. In cosmological background, with an appropriate field redefinition, we reorganize the infinite $α'$ corrections of string effective action into a finite term expression for any specific dimension. This finite term expression matches Lovelock gravity exactly and thus fix the couplings of Lovelock gravity by the coefficients of string effective action. This result thus provides a strong support to string theory.
description: V2: 4 pages, added discussions about quasi-topological gravity, version to appear in JHEP
A numerical investigation of ballistic impact on textile structures
Creators: name: Noori, Ali Shahkarami
Publisher: name: University of British Columbia
Year: 2009

description: The present work focuses on numerical investigation of impact on textile materials. An analytical model is proposed based on the theory of single yarn impact, to evaluate the energy absorbed by a fabric panel. This model is capable of evaluating the total absorbed energy and its components knowing the displacement time-history of the projectile. A numerical model is used to simulate the behaviour of a fabric panel under impact. This model approximates the fabric as an assembly of nodal masses attached to each other by means of string elements in the principal directions. A computer code is developed that is capable of modelling the impact of a blunt cylindrical projectile on rectangular fabric panels with various types of boundary conditions. The code predicts the time-histories of the nodal displacements, as well as forces in the string elements. Based on these, energy stored in the system in the form of strain energy in the strings and kinetic energy of inplane and transverse motion of the masses can also be evaluated. The numerical predictions are successfully compared with instrumented impact test results. Finally, a series of numerical experiments are performed to investigate the sensitivity of the response to different input parameters. The response is found to depend on many geometric and material parameters, emphasizing the importance of having an accurate knowledge of some of the input parameters. In particular, boundary conditions are found to affect the response significantly. It is also observed that increasing the elastic modulus or breaking strain of the yarns affects the energy absorption of the target favourably. Increasing the initial crimp strain is found to decrease the impact energy absorption, similar to increasing the gap between the layers of a multi-layer fabric.
Vortex-induced vibrations: a soft coral feeding strategy?
Creators: name: Boudina, Mouad
name: Gosselin, Frédérick P.
name: Étienne, Stéphane
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Soft corals, such as the bipinnate sea plume Antillogorgia bipinnata, are colony building animals that feed by catching food particles brought by currents. Because of their flexible skeleton, they bend and sway back and forth with the wave swell. In addition to this low-frequency sway of the whole colony, branches of A. bipinnata vibrate at high frequency with small amplitude and transverse to the flow as the wave flow speed peaks. In this paper, we investigate the origin of these yet unexplained vibrations and consider their effect on soft corals. Estimation of dynamical variables along with finite element implementation of the wake-oscillator model favour vortex-induced vibrations (VIVs) as the most probable origin of the observed rapid dynamics. To assess the impact of the dynamics on filter feeding, we simulated particles advected by the flow around a circular cylinder and calculated the capture rate with an in-house monolithic fluid-structure interaction (FSI) finite element solver and Python code. We observe that vibrating cylinders can capture up to 40% more particles than fixed ones at frequency lock-in. Therefore, VIVs plausibly offer soft corals a better food capture.
description: 20 pages
МОРФОЛОГИЯ ЛЕГОЧНЫХ КРОВЕНОСНЫХ СОСУДОВ ПРИ COVID-19
Creators: name: Муротов, Хабибулла
Publisher: name: Zenodo
Year: 2024

description: В данной статье изучаются морфологические изменения в стенках легочных сосудов, вызванные инфекцией COVID-19. Во время пандемии 2021 года фрагменты легких людей, умерших от этого заболевания, были взяты из участков, богатых кровеносными сосудами, и изучены гистологически. Известно, что обилие фермента АСЕ2 в эндотелии легочных сосудов, их обширное повреждение SARS-CoV-2, развитие мощного и рассеянного дисциркуляторного процесса, который продолжается с появлением эндотелиоза, эндотелита, коагулопатии, васкулита, микроваскулита тромбов, приводит к развитию диффузного геморрагического воспаления в легочной ткани.
Virtual Coordinate Backtracking for Void Traversal in Geographic Routing
Creators: name: Liu, Ke
name: Abu-Ghazaleh, Nael
Publisher: name: arXiv
Year: 2005
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Geographical routing protocols have several desirable features for use in ad hoc and sensor networks but are susceptible to voids and localization errors. Virtual coordinate systems are an alternative solution to geographically based routing protocols that works by overlaying a coordinate system on the sensors relative to well chosen reference points. VC is resilient to localization errors; however, we show that it is vulnerable to different forms of the void problem and have no viable complementary approach to overcome them. Specifically, we show that there are instances when packets reach nodes with no viable next hop nodes in the forwarding set. In addition, it is possible for nodes with the same coordinates to arise at different points in the network in the presence of voids. This paper identifies and analyzes these problems. It also compares several existing routing protocols based on Virtual Coordinate systems. Finally, it presents a new routing algorithm that uses backtracking to overcome voids to achieve high connectivity in the greedy phase, higher overall path quality and more resilience to localization errors. We show these properties using extensive simulation analysis.
Surgery and involutions on 4-manifolds
Creators: name: Krushkal, Vyacheslav S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57N13, 57M10, 57M60

description: We prove that the canonical 4-dimensional surgery problems can be solved after passing to a double cover. This contrasts the long-standing conjecture about the validity of the topological surgery theorem for arbitrary fundamental groups (without passing to a cover). As a corollary, the surgery conjecture is reformulated in terms of the existence of free involutions on a certain class of 4-manifolds. We consider this question and analyze its relation to the A,B-slice problem.
description: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol5/agt-5-70.abs.html
Quantum logical controlled-NOT gate in a lithium niobate-on-insulator photonic quantum walk
Creators: name: Chapman, Robert J
name: Häusler, Samuel
name: Finco, Giovanni
name: Kaufmann, Fabian
name: Grange, Rachel
Publisher: name: Institute of Physics Publishing
Year: 2023
Subjects: subject: Quantum computing
subject: Integrated photonics
subject: 620 - Ingenieurwissenschaften und Maschinenbau

description: The two-qubit controlled-NOT gate is one of the central entangling operations in quantum information technology. The controlled-NOT gate for single photon qubits is normally realized as a network of five individual beamsplitters on six optical modes. Quantum walks (QWs) are an alternative photonic architecture involving arrays of coupled waveguides, which have been successful for investigating condensed matter physics, however, have not yet been applied to quantum logical operations. Here, we engineer the tight-binding Hamiltonian of an array of lithium niobate-on-insulator waveguides to experimentally demonstrate the two-qubit controlled-NOT gate in a QW. We measure the two-qubit transfer matrix with 0.938 ± 0.003 fidelity, and we use the gate to generate entangled qubits with 0.945 ± 0.002 fidelity by preparing the control photon in a superposition state. Our results highlight a new application for QWs that use a compact multi-mode interaction region to realize large multi-component quantum circuits.
A Langevin Approach to One-Dimensional Granular Media Fluidized by Vibrations
Creators: name: Wakou, Jun'ichi
name: Ochiai, Akinori
name: Isobe, Masaharu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a Langevin approach to describe the steady-state dynamics of one-dimensional granular media fluidized by a vibrating bottom plate. We adopt a linear Langevin equation to describe the motion of the center of mass. Within this framework, we derive analytical expressions for several macroscopic quantities. We also predict the power spectrum for the height of the center of mass. We find good agreement between our theoretical predictions and extensive event-driven molecular dynamics simulations.
description: 11 pages, 3 figures, to be published in J. Phys. Soc. Jpn
ON SUPPLY SIDE OPTION VALUE
Creators: name: Graham-Tomasi, Theodore
name: Myers, Robert J.
name: Graham-Tomasi, Theodore
name: Myers, Robert J.
Publisher: name: Unknown
Year: 1989
Subjects: Research Methods/ Statistical Methods

description: In this paper the ability to sign supply-side option value is studied. The compensating and equivalent option prices are defined, and it is argued that equivalent option price is the preferred welfare measure. In the absence of income risk, if the probability distribution of supply is degenerate either with or without the project, one-way test of project acceptance can be established.
Elicitation session and text
Creators: name: Rolle, Nicholas Revett
name: Russell, Kamala Rose
name: Zapana Almanza, Hector
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2016
Subjects: Aymara language

description: Lexical elicitation, focus on contrasts in series and series of stops/affricates, small story text about 'asiru' getting a nickname about a poisonous flower (47:10-47:39)
Flow of online misinformation during the peak of the COVID-19 pandemic in Italy
Creators: name: Caldarelli, Guido
name: de Nicola, Rocco
name: Petrocchi, Marinella
name: Pratelli, Manuel
name: Saracco, Fabio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The COVID-19 pandemic has impacted on every human activity and, because of the urgency of finding the proper responses to such an unprecedented emergency, it generated a diffused societal debate. The online version of this discussion was not exempted by the presence of d/misinformation campaigns, but differently from what already witnessed in other debates, the COVID-19 -- intentional or not -- flow of false information put at severe risk the public health, reducing the effectiveness of governments' countermeasures. In the present manuscript, we study the effective impact of misinformation in the Italian societal debate on Twitter during the pandemic, focusing on the various discursive communities. In order to extract the discursive communities, we focus on verified users, i.e. accounts whose identity is officially certified by Twitter. We thus infer the various discursive communities based on how verified users are perceived by standard ones: if two verified accounts are considered as similar by non unverified ones, we link them in the network of certified accounts. We first observe that, beside being a mostly scientific subject, the COVID-19 discussion show a clear division in what results to be different political groups. At this point, by using a commonly available fact-checking software (NewsGuard), we assess the reputation of the pieces of news exchanged. We filter the network of retweets (i.e. users re-broadcasting the same elementary piece of information, or tweet) from random noise and check the presence of messages displaying an url. The impact of misinformation posts reaches the 22.1% in the right and center-right wing community and its contribution is even stronger in absolute numbers, due to the activity of this group: 96% of all non reputable urls shared by political groups come from this community.
description: 25 pages, 4 figures. The Abstract, the Introduction, the Results, the Conclusions and the Methods were substantially rewritten. The plot of the network have been changed, as well as tables
Spitzer Mid-infrared Spectroscopy of Ices Toward Extincted Background Stars
Creators: name: Knez, C.
name: Boogert, A. C. A.
name: Pontoppidan, K. M.
name: Kessler-Silacci, J. E.
name: van Dishoeck, E. F.
name: Evans, N. J.
name: Augereau, J. -C.
name: Blake, G. A.
name: Lahuis, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A powerful way to observe directly the solid state inventory of dense molecular clouds is by infrared spectroscopy of background stars. We present Spitzer/IRS 5-20 micron spectra of ices toward stars behind the Serpens and Taurus molecular clouds, probing visual extinctions of 10-34 mag. These data provide the first complete inventory of solid-state material in dense clouds before star formation begins. The spectra show prominent 6.0 and 6.85 micron bands. In contrast to some young stellar objects (YSOs), most (~75%) of the 6.0 micron band is explained by the bending mode of pure water ice. In realistic mixtures this number increases to 85%, because the peak strength of the water bending mode is very sensitive to the molecular environment. The strength of the 6.85 micron band is comparable to what is observed toward YSOs. Thus, the production of the carrier of this band does not depend on the energetic input of a nearby source. The spectra show large abundances of carbon monoxide and carbon dioxide (20-40% with respect to water ice). Compared to YSOs, the band profile of the 15 micron carbon dioxide bending mode lacks the signatures of crystallization, confirming the cold, pristine nature of these lines of sight. After the dominant species are removed, there are residuals that suggest the presence of minor species such as formic acid and possibly ammonia. Clearly, models of star formation should begin with dust models already coated with a fairly complex mixture of ices.
description: 4 pages, 5 figures; To appear in Astrophysical Journal Letters
PERSPECTIVES ON ECONOMIC GROWTH IN NORTHEAST MINNESOTA
Creators: name: Maki, Wilbur R.
name: Lichty, Richard W.
name: Laulainen, Leonard A.
name: Maki, Wilbur R.
name: Lichty, Richard W.
name: Laulainen, Leonard A.
Publisher: name: Unknown
Year: 1977
Subjects: Community/Rural/Urban Development

description: This report focuses on the regional economy of Northeast Minnesota and, also, a portion of Northwest Wisconsin. It covers past trends, current directions of change, and future prospects under varying assumptions. Projected economic impacts of these changes are presented as a basis for discussion of such controversial issues as large-scale mineral exploration and development.
Overview of Risks, Threats, and Vulnerabilities Faced in Moving to the Cloud
Creators: name: Morrow, Timothy
name: Kelwyn Pender
name: Lee, Carrie
name: Faatz, Donald
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: 80303 Computer System Security
subject: FOS: Computer and information sciences

description: As organizations develop new applications in or migrate existing applications to cloud services, they face changes in securing their information and applications. This report examines the changes to risks, threats, and vulnerabilities when applications are deployed to cloud services. Five cloud-unique threats and risks are identified along with seven threats and risks that exist on-premises and in cloud computing. For each of these threats and risks, recommendations are made for managing and mitigating the threats and risks when using cloud services.
I Think They're Trying To Tell Me Something: Advice Sources and Selection for Digital Security
Creators: name: Redmiles, Elissa M.
name: Malone, Amelia
name: Mazurek, Michelle L.
Publisher: name: Digital Repository at the University of Maryland
Year: 2015

description: Users receive a multitude of digital- and physical-security advice every day. Indeed, if we implemented all the security advice we received, we would never leave our houses or use the Internet. Instead, users selectively choose some advice to accept and some (most) to reject; however, it is unclear whether they are effectively prioritizing what is most important or most useful. If we can understand from where users take security advice and how they subsequently develop security behaviors, we can develop more effective security interventions. 

As a first step, we conducted 25 semi-structured interviews of security-sensitive (those users who deal with sensitive data or hold security clearances) and general users. These interviews resulted in several key findings: (1) users' main sources of digital-security advice include IT professionals, workplaces, and negative events, whether experienced personally or retold through TV; (2) users determine whether to accept digital-security advice based on the trustworthiness of the advice-source, as they feel inadequately able to evaluate the advice content; (3) users reject advice for many reasons, from believing that someone else is responsible for their security to finding that the advice contains too much marketing material or threatens their privacy; and (4) security-sensitive users differ from general users in a number of ways, including feeling that digital-security advice is more useful in their day-to-day lives and relying heavily on their workplace as a source of security information. These and our other findings inform a set of design recommendations for enhancing the efficacy of digital-security advice.
Theory of weak symmetry breaking of translations in $\mathbb{Z}_2$ topologically ordered states and its relation to topological superconductivity from an exact lattice $\mathbb{Z}_2$ charge-flux attachment
Creators: name: Rao, Peng
name: Sodemann, Inti
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study $\mathbb{Z}_2$ topologically ordered states enriched by translational symmetry by employing a recently developed 2D bosonization approach that implements an exact $\mathbb{Z}_2$ charge-flux attachment in the lattice. Such states can display `weak symmetry breaking' of translations, in which both the Hamiltonian and ground state remain fully translational invariant but the symmetry is `broken' by its anyon quasi-particles, in the sense that its action maps them into a different super-selection sector. We demonstrate that this phenomenon occurs when the fermionic spinons form a weak topological superconductor in the form of a 2D stack of 1D Kitaev wires, leading to the amusing property that there is no local operator that can transport the $π$-flux quasi-particle across a single Kitaev wire of fermonic spinons without paying an energy gap in spite of the vacuum remaining fully translational invariant. We explain why this phenomenon occurs hand-in-hand with other previously identified peculiar features such as ground state degeneracy dependence on the size of the torus and the appearance of dangling boundary Majorana modes in certain $\mathbb{Z}_2$ topologically ordered states. Moreover, by extending the $\mathbb{Z}_2$ charge-flux attachment to open lattices and cylinders, we construct a plethora of exactly solvable models providing an exact description of their dispersive Majorana gapless boundary modes. We also review the $\mathbb{Z}\times (\mathbb{Z}_2)^3$ classification of 2D BdG Hamiltonians (Class D) enriched by translational symmetry and provide arguments on its robust stability against interactions and self-averaging disorder that preserves translational symmetry.
description: 31 pages, 18 figures
Kahle, Wilhelm; Klapper, Gottfried; Maurer, Wilhelm; Schmidt, Martin: Die Lutherische Kirche
Creators: name: Boeckler, Richard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 26 Nr. 2 (1977): Ökumenische Rundschau, Band 26, Heft 2
Charm elliptic flow at RHIC
Creators: name: Zhang, Bin
name: Chen, Lie-Wen
name: Ko, Che-Ming
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Charm elliptic flow in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) is studied in a multiphase transport model. Assuming that the cross section for charm quark scattering with other light quarks is the same as that between light quarks, we find that both charm and light quark elliptic flows are sensitive to the value of the cross section. Compared to that of light quarks, the elliptic flow of charm quarks is smaller at low transverse momentum but approaches comparable values at high transverse momentum. Similar features are seen in the elliptic flow of charmed mesons as well as that of the electrons from their semileptonic decays when the charmed mesons are produced from quark coalescence during hadronization of the partonic matter. To describe the large electron elliptic flow observed in available experimental data requires a charm quark scattering cross section that is much larger than that given by the perturbative QCD.
TRACKING THE GOVERNMENT SECTOR IN A NATURAL RESOURCE-BASED ECONOMY
Creators: name: Maki, Wilbur R.
name: Schallau, Con H.
name: Akhavipour, Hossein
name: Olson, Douglas C.
name: Maki, Wilbur R.
name: Schallau, Con H.
name: Akhavipour, Hossein
name: Olson, Douglas C.
Publisher: name: Unknown
Year: 1987
Subjects: Community/Rural/Urban Development
Public Economics

description: In this paper, we describe the modeling of a resource-dependent economy, namely, Southeast Alaska, in monitoring the impact of federal, state and local government taxing and spending activities on the region. An important part of the modeling effort is construction of a readily accessible regional database for estimating critical economic relationships and variables that provide a baseline forecast series for the region. The Alaska Interactive Policy Analysis Simulation System (IPASS) makes use of the database in assessing the economic impacts of alternative resource management policies on state and local governments. IPASS is a computer-based, user-interactive economic forecasting and simulation system. The basic system is divided into eight modules: investment; final demand; production; regional export; population; labor force; employment; and primary inputs with government being the ninth module. It provides the quantitative framework for measuring and monitoring changes in regional economic activity and, also, for differentiating among the causal factors accounting for these changes. The individual modules form the IPASS shell that makes possible assessment of the effects of specific government activity on each industry and sector in the region's economy and, in turn, the effects of specific industry activity on each level and function of government.
NFFA-Europe Pilot - D17.4 - Mid Term Review on all Outreach and Training activities
Creators: name: Brancaleon, Riccardo
name: Carsughi, Flavio
name: Petrovykh, Dmitri
name: Stratakis, Emmanuel
Publisher: name: Zenodo
Year: 2023

description: Dissemination and Communication activities of the NFFA-EUROPE PILOT project play a major role in advertising the NFFA-EUROPE PILOT infrastructure and attracting new users, the main goal of NFFA-Europe PILOT. A detailed description of all the actions is contained in this report.
description: WP17 - JA7 – Communication and Dissemination
New Early Dark Energy is compatible with current LSS data
Creators: name: Niedermann, Florian
name: Sloth, Martin S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
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: Recently a full-shape analysis of large-scale structure (LSS) data was employed to provide new constraints on a class of Early Dark Energy (EDE) models. In this note, we derive similar constraints on New Early Dark Energy (NEDE) using the publicly available PyBird code, which makes use of the effective field theory of LSS. We study the NEDE base model with the fraction of NEDE and the trigger field mass as two additional parameters allowed to vary freely while making simplifying assumptions about the decaying fluid sector. Including the full-shape analysis of LSS together with measurements of the cosmic microwave background (CMB), baryonic acoustic oscillations (BAO) and supernovae (SN) data, we report $ H_0= 71.2 \pm 1.0~\textrm{km}\, \textrm{s}^{-1}\, \textrm{Mpc}^{-1}$ ($68 \%$ C.L.) together with a $\simeq 4 \, σ$ evidence for a non-vanishing fraction of NEDE. This is an insignificant change to the value previously found without full-shape LSS data, $ H_0= 71.4 \pm 1.0~\textrm{km}\, \textrm{s}^{-1}\, \textrm{Mpc}^{-1} $ ($68 \%$ C.L.). As a result, while the NEDE fit cannot be improved upon the inclusion of additional LSS data, it is also not adversely affected by it, making it compatible with current constraints from LSS data. In fact, we find evidence that the effective field theory of LSS acts in favor of NEDE.
description: 15 pages, 4 figures, v2: added detailed discussion on linear and EFT-corrected power spectrum, added references, improvements to manuscript
Nuclear spin readout in a cavity-coupled hybrid quantum dot-donor system
Creators: name: Mielke, Jonas
name: Petta, Jason R.
name: Burkard, Guido
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Nuclear spins show long coherence times and are well isolated from the environment, which are properties making them promising for quantum information applications. Here, we present a method for nuclear spin readout by probing the transmission of a microwave resonator. We consider a single electron in a silicon quantum dot-donor device interacting with a microwave resonator via the electric dipole coupling and subjected to a homogeneous magnetic field and a transverse magnetic field gradient. In our scenario, the electron spin interacts with a $^{31}\mathrm{P}$ defect nuclear spin via the hyperfine interaction. We theoretically investigate the influence of the P nuclear spin state on the microwave transmission through the cavity and show that nuclear spin readout is feasible with current state-of-the-art devices. Moreover, we identify optimal readout points with strong signal contrast to facilitate the experimental implementation of nuclear spin readout. Furthermore, we investigate the potential for achieving coherent excitation exchange between a nuclear spin qubit and cavity photons.
description: 8+11 pages, 6+4 figures, v2: substantial revision and focus on dot-donor system
Resonance photoproduction of pionic atoms at the Gamma Factory
Creators: name: Flambaum, Victor V.
name: Jin, Junlan
name: Budker, Dmitry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a possibility of direct resonance production of pionic atoms (Coulomb bound states of a negative pion and a nucleus) with a rate of up to $\sim10^{10}$ per second using the gamma-ray beams from the Gamma Factory.
description: About 7 pages, 4 figures. In this version, we limit the discussion to photoproduction of pionic atoms. The mechanism as discussed cannot, in fact, be extended to kaonic atoms
Breakdown of universality in three-dimensional Dirac semimetals with random impurities
Creators: name: Pires, J. P. Santos
name: Amorim, B.
name: Ferreira, Aires
name: Adagideli, İnanç
name: Mucciolo, Eduardo R.
name: Lopes, J. M. Viana Parente
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dirac-Weyl semimetals are unique three-dimensional (3D) phases of matter with gapless electrons and novel electrodynamic properties believed to be robust against weak perturbations. Here, we unveil the crucial influence of the disorder statistics and impurity diversity in the stability of incompressible electrons in 3D semimetals. Focusing on the critical role played by rare impurity configurations, we show that the abundance of low-energy resonances in the presence of diluted random potential wells endows rare localized zero-energy modes with statistical significance, thus lifting the nodal density of states. The strong nonperturbative effect here reported converts the 3D Dirac-Weyl semimetal into a compressible metal even at the lowest impurity densities. Our analytical results are validated by high-resolution real-space simulations in record-large 3D lattices with up to 536 000 000 orbitals.
description: 15 Pages (10 Figures) - Published Version
First Law of Black Rings Thermodynamics in Higher Dimensional Dilaton Gravity with p + 1 Strength Forms
Creators: name: Rogatko, Marek
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the first law of black rings thermodynamics in n-dimensional Einstein dilaton gravity with additional (p+1)-form field strength being the simplest generalization of five-dimensional theory containing a stationary black ring solution with dipole charge. It was done by means of choosing any cross section of the event horizon to the future of the bifurcation surface.
description: 6 pages, to be published in Phys.Rev.D15
A Processor Core Model for Quantum Computing
Creators: name: Yung, Man-Hong
name: Benjamin, Simon C.
name: Bose, Sougato
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe an architecture based on a processing 'core' where multiple qubits interact perpetually, and a separate 'store' where qubits exist in isolation. Computation consists of single qubit operations, swaps between the store and the core, and free evolution of the core. This enables computation using physical systems where the entangling interactions are 'always on'. Alternatively, for switchable systems our model constitutes a prescription for optimizing many-qubit gates. We discuss implementations of the quantum Fourier transform, Hamiltonian simulation, and quantum error correction.
description: 5 pages, 2 figures; improved some arguments as suggested by a referee
Direct observation of swap cooling in atom-ion collisions
Creators: name: Mahdian, Amir
name: Krükow, Artjom
name: Denschlag, Johannes Hecker
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Collisions with cold particles can dissipate the energy of a hot particle and therefore be exploited as a cooling mechanism. Kinetics teaches us that for a particle to be cooled down by several orders of magnitude, it will typically take many elastic collisions as each one only carries away a certain fraction of the collision energy. Recently, for a system consisting of hot ions and cold atoms, a much faster cooling process has been suggested where cooling over several orders of magnitude can occur in a single step. Namely, in a homo-nuclear atom-ion collision, an electron can resonantly hop from an ultracold atom onto the hot ion, converting the cold atom into a cold ion. Here, we demonstrate such swap cooling in a direct way as we experimentally observe how a single energetic ion loses energy in a cold atom cloud. In order to contrast swap cooling with standard sympathetic cooling, we perform the same measurements with a hetero-nuclear atom-ion system, for which swap cooling cannot take place, and indeed observe much different cooling dynamics. Ab initio numerical model calculations agree well with our measured data and corroborate our interpretations. We expect swap cooling to occur quite universally in any homo-nuclear atom-ion collision. It should therefore be a ubiquitous process in mixed atom-ion gases and plasmas. Furthermore, it offers interesting prospects for fast cooling applications.
description: 8 pages, 5 figures
Magnetically induced spin-dependent photoemission from p-GaAs(Cs,O) into vacuum
Creators: name: Orlov, D. A.
name: Alperovich, V. L.
name: Terekhov, A. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A spin-dependent emission of optically oriented electrons from p-GaAs(Cs,O) into vacuum was experimentally observed in a magnetic field normal to the surface. This phenomenon is explained within the model which takes into account the jump in the electron g factor at the semiconductor-vacuum interface. Due to this jump, the effective electron affinity on the semiconductor surface depends on the mutual direction of optically oriented electron spins and the magnetic field, resulting in the spin-dependent photoemission. It is demonstrated that the observed effect can be used for the determination of spin diffusion length in semiconductors.
description: 7 pages, 6 figures, published version
A leak in PRNU based source identification. Questioning fingerprint uniqueness
Creators: name: Iuliani, Massimo
name: Fontani, Marco
name: Piva, Alessandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.4

description: Photo Response Non-Uniformity (PRNU) is considered the most effective trace for the image source attribution task. Its uniqueness ensures that the sensor pattern noises extracted from different cameras are strongly uncorrelated, even when they belong to the same camera model. However, with the advent of computational photography, most recent devices heavily process the acquired pixels, possibly introducing non-unique artifacts that may reduce PRNU noise's distinctiveness, especially when several exemplars of the same device model are involved in the analysis. Considering that PRNU is an image forensic technology that finds actual and wide use by law enforcement agencies worldwide, it is essential to keep validating such technology on recent devices as they appear. In this paper, we perform an extensive testing campaign on over 33.000 Flickr images belonging to 45 smartphone and 25 DSLR camera models released recently to determine how widespread the issue is and which is the plausible cause. Experiments highlight that most brands, like Samsung, Huawei, Canon, Nikon, Fujifilm, Sigma, and Leica, are strongly affected by this issue. We show that the primary cause of high false alarm rates cannot be directly related to specific camera models, firmware, nor image contents. It is evident that the effectiveness of \prnu based source identification on the most recent devices must be reconsidered in light of these results. Therefore, this paper is intended as a call to action for the scientific community rather than a complete treatment of the subject. Moreover, we believe publishing these data is important to raise awareness about a possible issue with PRNU reliability in the law enforcement world.
description: Final paper in : https://ieeexplore.ieee.org/document/9393356
Modeling Agricultural Production Considering Water Quality and Risk
Creators: name: Apland, Jeffrey
name: Grainger, Corbett
name: Strock, Jeffrey
name: Apland, Jeffrey
name: Grainger, Corbett
name: Strock, Jeffrey
Publisher: name: Unknown
Year: 2004
Subjects: Production Economics

description: Environmental goals often conflict with the economic goals of agricultural producers. The Cottonwood River in Minnesota is heavily polluted with nitrogen, phosphate and sediment from agricultural sources in the watershed. Goals of profit maximization for producers conflict with those of effluent alleviation. We incorporate water quality goals and risk into a mathematical programming framework to examine economically efficient means of pollution abatement while considering a wide range of alternative production practices.
Electronic structure of and Quantum size effect in III-V and II-VI semiconducting nanocrystals using a realistic tight binding approach
Creators: name: Viswanatha, Ranjani
name: Sapra, Sameer
name: Saha-Dasgupta, Tanusri
name: Sarma, D. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyze the electronic structure of group III-V semiconductors obtained within full potential linearized augmented plane wave (FP-LAPW) method and arrive at a realistic and minimal tight-binding model, parameterized to provide an accurate description of both valence and conduction bands. It is shown that cation sp3 - anion sp3d5 basis along with the next nearest neighbor model for hopping interactions is sufficient to describe the electronic structure of these systems over a wide energy range, obviating the use of any fictitious s* orbital, employed previously. Similar analyses were also performed for the II-VI semiconductors, using the more accurate FP-LAPW method compared to previous approaches, in order to enhance reliability of the parameter values. Using these parameters, we calculate the electronic structure of III-V and II-VI nanocrystals in real space with sizes ranging upto about 7 nm in diameter, establishing a quantitatively accurate description of the band-gap variation with sizes for the various nanocrystals by comparing with available experimental results from the literature.
description: 28 pages, 8 figures, Accepted for publication in Phys. Rev. B
Resolution of sub-wavelength lenses formed by the wire medium
Creators: name: Belov, Pavel A.
name: Silveirinha, Mario G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The restrictions on the resolution of transmission devices formed by wire media (arrays of conductive cylinders) recently proposed in [Phys. Rev. B, 71, 193105 (2005)] and experimentally tested in [Phys. Rev. B, 73, 033108 (2006)] are studied in this paper using both analytical and numerical modeling. It is demonstrated that such transmission devices have sub-wavelength resolution that can in principle be made as fine as required by a specific application by controlling the lattice constant of the wire medium. This confirms that slabs of the wire medium are unique imaging devices at the microwave frequency range, and are capable of transmitting distributions of TM-polarized electric fields with nearly unlimited sub-wavelength resolution to practically arbitrary distances.
description: 10 pages, 12 figures, submitted to PRE
Variational Simulation of Schwinger's Hamiltonian with Polarisation Qubits
Creators: name: Borzenkova, O. V.
name: Struchalin, G. I.
name: Kardashin, A. S.
name: Krasnikov, V. V.
name: Skryabin, N. N.
name: Straupe, S. S.
name: Kulik, S. P.
name: Biamonte, J. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The numerical emulation of quantum physics and quantum chemistry often involves an intractable number of degrees of freedom and admits no known approximation in general form. In practice, representing quantum-mechanical states using available numerical methods becomes exponentially more challenging with increasing system size. Recently quantum algorithms implemented as variational models, have been proposed to accelerate such simulations. Here we study the effect of noise on the quantum phase transition in the Schwinger model, within a variational framework. The experiments are built using a free space optical scheme to realize a pair of polarization qubits and enable any two-qubit state to be experimentally prepared up to machine tolerance. We specifically exploit the possibility to engineer noise and decoherence for polarization qubits to explore the limits of variational algorithms for NISQ architectures in identifying and quantifying quantum phase transitions with noisy qubits. We find that despite the presence of noise one can detect the phase transition of the Schwinger Hamiltonian even for a two-qubit system using variational quantum algorithms.
description: 11 pages, 8 figures
Investigating the relationships between the built environment, the climate, walkability and physical activity in the Arabian Peninsula: The case of Bahrain
Creators: name: Joao Pinelo Silva
name: Aamal Z. Akleh
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Built environments have a profound effect on public health as they provide the background on which individuals make decisions to address their mobility, resulting in the adoption of varying degrees of physical activity. This is a logical adjunct to the natural environment that may or may not be conducive to physical activity (PA). Because microclimates influence the use of outdoor space, the built environment is crucial in creating conditions that are amenable for PA. A sample of 1359 participants declared activity levels during summer and winter over two years, via the International Physical Activity Questionnaire. The results, presented in this paper: a) estimate that 39% of all physical activity takes place outdoors, denoting dependence on indoor environments; b) test the measurement of PA in a standard, expedited way, allowing for seasonal monitoring; c) measure the seasonal difference between outdoor walking, thus quantifying the role of the weather. The study is the first on the topic in the Kingdom of Bahrain. It creates awareness for the relationship between built environment and public health, establishes directions and a foundation for future research, and baselines that may influence policymaking.
No Crash, No Exploit: Automated Verification of Embedded Kernels
Creators: name: Nicole, Olivier
name: Lemerre, Matthieu
name: Bardin, Sébastien
name: Rival, Xavier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences

description: The kernel is the most safety- and security-critical component of many computer systems, as the most severe bugs lead to complete system crash or exploit. It is thus desirable to guarantee that a kernel is free from these bugs using formal methods, but the high cost and expertise required to do so are deterrent to wide applicability. We propose a method that can verify both absence of runtime errors (i.e. crashes) and absence of privilege escalation (i.e. exploits) in embedded kernels from their binary executables. The method can verify the kernel runtime independently from the application, at the expense of only a few lines of simple annotations. When given a specific application, the method can verify simple kernels without any human intervention. We demonstrate our method on two different use cases: we use our tool to help the development of a new embedded real-time kernel, and we verify an existing industrial real-time kernel executable with no modification. Results show that the method is fast, simple to use, and can prevent real errors and security vulnerabilities.
description: Published in IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'21)