cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CINECA Curation-support application for care planning D5.4
Creators: name: Ruch, Patrick
name: Naderi, Nona
name: Mottin, Luc
name: Pasche, Emilie
name: Mottaz, Anais
Publisher: name: Zenodo
Year: 2023
Subjects: diagnosis
beacon
CINECA

description: This deliverable aims at designing and evaluating a curation support system to help clinicians to decide which treatments should be considered given a set of somatic/germline mutations and some particular clinical conditions (e.g. diagnosis). It builds on top of previous deliverables from WP5, in particular D5.1 [1], as well as on the services delivered by WP1-3, such as the WP1 dataset search services and WP3 content normalization services. In the use-case scenario described in D5.1, the end-user was first invited to select some datasets. User queries are then distributed across a federated Beacon network, comprising data from UKBB (EMBL-EBI), CoLaus (Switzerland), H3 (South Africa) and CHILD (Canada). Beyond that, the search pipeline now integrates subtask T5.3.2 (Scoring service to assess pathogenicity scales of variants) directly as an information displayed to the user, but also as a feature of the treatment recommendation function. The scoring and care planning services are evaluated based on various scoring functions (e.g., cohort distributions, SIFT, Polyphen, literature counts). The evaluation shows a moderate association between the pathogenetic scoring proposed by T5.3.2 and the baseline scores selected for comparison. We also report on the efficiency of the pipeline.
A revisit to the large-time behavior of the Vlasov/compressible Navier-Stokes equations
Creators: name: Choi, Young-Pil
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We establish the large-time behavior for the coupled kinetic-fluid equations. More precisely, we consider the Vlasov equation coupled to the compressible isentropic Navier-Stokes equations through a drag forcing term. For this system, the large-time behavior shows the exponential alignment between particles and fluid velocities as time evolves. This improves the previous result by Bae-Choi-Ha-Kang[Disc. Cont. Dyn. Sys. A, 34, (2014), 4419--4458] in which they considered the Vlasov/Navier-Stokes equations with nonlocal velocity alignment forces for particles. Employing a new Lyapunov functional measuring the fluctuations of momentum and mass from the averaged quantities, we refine assumptions for the large-time behavior of the solutions to that system.
The cause of spatial structure in solar He I 1083 nm multiplet images
Creators: name: Leenaarts, Jorrit
name: Golding, Thomas
name: Carlsson, Mats
name: Libbrecht, Tine
name: Joshi, Jayant
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The He i 1083 nm is a powerful diagnostic for inferring properties of the upper solar chromosphere, in particular for the magnetic field. The basic formation of the line in one-dimensional models is well understood, but the influence of the complex 3D structure of the chromosphere and corona has however never been investigated. This structure must play an essential role because images taken in He i 1083 nm show structures with widths down to 100 km. Aims. To understand the effect of the three-dimensional temperature and density structure in the solar atmosphere on the formation of the He i 1083 nm line. Methods. We solve the non-LTE radiative transfer problem assuming statistical equilibrium for a simple 9-level helium atom that nevertheless captures all essential physics. As a model atmosphere we use a snapshot from a 3D radiation-MHD simulation computed with the Bifrost code. Ionising radiation from the corona is self-consistently taken into account. Results. The emergent intensity in the He i 1083 nm is set by the source function and the opacity in the upper chromosphere. The former is dominated by scattering of photospheric radiation and does not vary much with spatial location. The latter is determined by the photonionisation rate in the He i ground state continuum, as well as the electron density in the chromosphere. The spatial variation of the flux of ionising radiation is caused by the spatially-structured emissivity of the ionising photons from material at T = 100 kK in the transition region. The hotter coronal material produces more ionising photons, but the resulting radiation field is smooth and does not lead to small-scale variation of the UV flux. The corrugation of the transition region further increases the spatial variation of the amount of UV radiation in the chromosphere.
description: Accepted for publication by A&A
Experiences of uncertainty in patients with advanced and metastatic cancer receiving immunotherapy or targeted therapy: protocol for a systematic review and thematic synthesis
Creators: name: Langmuir, Tori
name: Chu, Alanna
name: Lebel, Sophie
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Psychological Phenomena and Processes
subject: Neoplasms
subject: Psychology
subject: FOS: Psychology
subject: Psychiatry and Psychology
subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Social and Behavioral Sciences
subject: Oncology
subject: Clinical Psychology
subject: Diseases
subject: advanced cancer
subject: immuno-oncology
subject: immunotherapy
subject: metastatic
subject: systematic review
subject: targeted therapy
subject: uncertainty

description: Over the past 20 years, immunotherapy and targeted therapy have been extending the life expectancy and providing hope for a growing number of patients with advanced and metastatic cancer. However, the efficacy, side effects, and overall prognosis of these treatments are highly unpredictable. As a result, recent research suggests that patients may be experiencing significant uncertainty which impacts their daily lives. This study will review the experiences of uncertainty of individuals with advanced or metastatic cancer patients who are receiving immunotherapy or targeted therapy. A systematic literature review will be conducted. Data will be extracted from studies by pairs of reviewers. Literature quality will be appraised using the Critical Appraisal Skills Program checklist. Following data extraction, thematic synthesis will be used to summarize findings across studies and generate themes.
Colliding-wind Binaries with strong magnetic fields
Creators: name: Kissmann, R.
name: Reitberger, K.
name: Reimer, O.
name: Reimer, A.
name: Grimaldo, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The dynamics of colliding wind binary systems and conditions for efficient particle acceleration therein have attracted multiple numerical studies in the recent years. These numerical models seek an explanation of the thermal and non-thermal emission of these systems as seen by observations. In the non-thermal regime, radio and X-ray emission is observed for several of these colliding-wind binaries, while gamma-ray emission has so far only been found in $η$ Carinae and possibly in WR 11. Energetic electrons are deemed responsible for a large fraction of the observed high-energy photons in these systems. Only in the gamma-ray regime there might be, depending on the properties of the stars, a significant contribution of emission from neutral pion decay. Thus, studying the emission from colliding-wind binaries requires detailed models of the acceleration and propagation of energetic electrons. This in turn requires a detailed understanding of the magnetic field, which will not only affect the energy losses of the electrons but in case of synchrotron emission also the directional dependence of the emissivity. In this study we investigate magnetohydrodynamic simulations of different colliding wind binary systems with magnetic fields that are strong enough to have a significant effect on the winds. Such strong fields require a detailed treatment of the near-star wind acceleration zone. We show the implementation of such simulations and discuss results that demonstrate the effect of the magnetic field on the structure of the wind collision region.
description: 24 pages, 7 figures, accepted for publication in The Astrophysical Journal
Statistical theory of reversals in two-dimensional confined turbulent flows
Creators: name: Shukla, Vishwanath
name: Fauve, Stephan
name: Brachet, Marc
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: It is shown that the Truncated Euler Equations, i.e. a finite set of ordinary differential equations for the amplitude of the large-scale modes, can correctly describe the complex transitional dynamics that occur within the turbulent regime of a confined 2D Navier-Stokes flow with bottom friction and a spatially periodic forcing. In particular, the random reversals of the large scale circulation on the turbulent background involve bifurcations of the probability distribution function of the large-scale circulation velocity that are described by the related microcanonical distribution which displays transitions from gaussian to bimodal and broken ergodicity. A minimal 13-mode model reproduces these results.
description: 6 pages, 2 figures
Intensity Interferometry with Aqueye+ and Iqueye in Asiago
Creators: name: Zampieri, L.
name: Naletto, G.
name: Barbieri, C.
name: Barbieri, M.
name: Verroi, E.
name: Umbriaco, G.
name: Favazza, P.
name: Lessio, L.
name: Farisato, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Since a number of years our group is engaged in the design, construction and operation of instruments with very high time resolution in the optical band for applications to Quantum Astronomy and more conventional Astrophysics. Two instruments were built to perform photon counting with sub-nanosecond temporal accuracy. The first of the two, Aqueye+, is regularly mounted at the 1.8 m Copernicus telescope in Asiago, while the second one, Iqueye, was mounted at the ESO New Technology Telescope in Chile, and at the William Herschel Telescope and Telescopio Nazionale Galileo on the Roque (La Palma, Canary Islands). Both instruments deliver extraordinarily accurate results in optical pulsar timing. Recently, Iqueye was moved to Asiago to be mounted at the 1.2 m Galileo telescope to attempt, for the first time ever, experiments of optical intensity interferometry (a` la Hanbury Brown and Twiss) on a baseline of a few kilometers, together with the Copernicus telescope. This application was one of the original goals for the development of our instrumentation. To carry out these measurements, we are experimenting a new way of coupling the instruments to the telescopes, by means of moderate-aperture, low-optical-attenuation multi-mode optical fibers with a double-clad design. Fibers are housed in dedicated optical interfaces attached to the focus of another instrument of the 1.8 m telescope (Aqueye+) or to the Nasmyth focus of the 1.2 m telescope (Iqueye). This soft-mount solution has the advantage to facilitate the mounting of the photon counters, to keep them under controlled temperature and humidity conditions (reducing potential systematics related to varying ambient conditions), and to mitigate scheduling requirements. Here we will describe the first successful implementation of the Asiago intensity interferometer and future plans for improving it.
description: Proceedings of the SPIE, Volume 9907, id. 99070N 14 pp. (2016)
Non-Hermiticity-Induced Wave Confinement and Guiding in Loss-Gain-Loss Three-Layer Systems
Creators: name: Savoia, Silvio
name: Castaldi, Giuseppe
name: Galdi, Vincenzo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Following up on previous studies on parity-time-symmetric gain-loss bi-layers, and inspired by formal analogies with plasmonic waveguides, we study non-Hermiticity-induced wave confinement and guiding phenomena that can occur in loss-gain-loss three-layers. By revisiting previous well-established "gain-guiding" concepts, we investigate analytically and numerically the dispersion and confinement properties of guided modes that can be supported by this type of structures, by assuming realistic dispersion models and parameters for the material constituents. As key outcomes, we identify certain modes with specific polarization and symmetry that exhibit particularly desirable characteristics, in terms of quasi-real propagation constant and sub-wavelength confinement. Moreover, we elucidate the effects of material dispersion and parameters, and highlight the potential advantages by comparison with the previously studied gain-loss bi-layer configurations. Our results provide additional perspectives on light control in non-Hermitian optical systems, and may find potentially intriguing applicability to reconfigurable nanophotonic platforms.
description: 11 pages; 10 figures
Foreword with a table of contents for Special IJMPD Issue on Spacetime Structure and Electrodynamics
Creators: name: Ni, Wei-Tou
name: Alighieri, Sperello di Serego
name: Kaufman, Jonathan
name: Keating, Brian
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the last two decades we have seen important mutual stimulations between the community working on electrodynamics of continuous media and the community working on spacetime structure. This is highlighted by the publication of two important monographs from two communities: Foundations of Classical Electrodynamics by F. W. Hehl and Yu. N. Obukhov (Birkhäuser, Boston 2003) and Differential Forms in Electromagnetics by I. V. Lindell (IEEE Press-Wiley, Piscataway, NJ 2004; see also a new book "Multiforms, Dyadics, and Electromagnetic Media" by the same author in 2015). Starting around 1960, magnetoelectric effects and magnetoelectric media have been a focus of study. Somewhat later, the constitutive tensor density framework was used to construct spacetime structure theoretically and empirically. Earlier, in putting Maxwell equations into a form compatible with general relativity, Einstein noticed that the Maxwell equations can be formulated in a form independent of the metric gravitational potential in 1916; only the constitutive tensor density depends on the metric. This was followed by further stimulating and clarifying works of Weyl in 1918, Murnaghan in 1921, Kottler in 1922 and Cartan in 1923. Year 2016 is the centennial of the start of this historical development. International Journal of Modern Physics D of World Scientific is celebrating the occasion by publishing this special issue on Spacetime Structure and Electrodynamics. We have invited researchers to submit original research articles that would contribute to a better understanding of the phenomena inherent to spacetime structure and electrodynamic media.
description: 5 pages with links to arXiv
Subtraction of correlated noise in global networks of gravitational-wave interferometers
Creators: name: Coughlin, Michael W.
name: Christensen, Nelson L.
name: De Rosa, Rosario
name: Fiori, Irene
name: Gołkowski, Mark
name: Guidry, Melissa
name: Harms, Jan
name: Kubisz, Jerzy
name: Kulak, Andrzej
name: Mlynarczyk, Janusz
name: Paoletti, Federico
name: Thrane, Eric
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The recent discovery of merging black holes suggests that a stochastic gravitational-wave background is within reach of the advanced detector network operating at design sensitivity. However, correlated magnetic noise from Schumann resonances threatens to contaminate observation of a stochastic background. In this paper, we report on the first effort to eliminate intercontinental correlated noise from Schumann resonances using Wiener filtering. Using magnetometers as proxies for gravitational-wave detectors, we demonstrate as much as a factor of two reduction in the coherence between magnetometers on different continents. While much work remains to be done, our results constitute a proof-of-principle and motivate follow-up studies with a dedicated array of magnetometers.
CINECA Integration of new cohort infrastructures to the ELIXIR AAI - D2.3
Creators: name: Licehammer
name: Bučík
name: Broncová
name: Spalding
Publisher: name: Zenodo
Year: 2023
Subjects: AAI
passports
visa

description: In the previously carried out work in CINECA WP2, described in the deliverable D2.11, the ELIXIR AAI has been integrated with the CanDIG AAI to enable interoperability between the two infrastructures. After that, the primary focus has evolved towards supporting standardized authorization solutions, namely by implementing and using the GA4GH Passports and Visas2 standard in the bridged AAI solution. With the implementation finished, the work plan has shifted towards integrating more cohort infrastructures into the bridged AAI resulting in a wider set of use cases and wider cooperation possibilities, together with more functionality provided to the users and an extensive set of services integrated with the AAI environment.
Searching for turbulence models by artificial neural network
Creators: name: Gamahara, Masataka
name: Hattori, Yuji
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Artificial neural network (ANN) is tested as a tool for finding a new subgrid model of the subgrid-scale (SGS) stress in large-eddy simulation. ANN is used to establish a functional relation between the grid-scale (GS) flow field and the SGS stress without any assumption of the form of function. Data required for training and test of ANN are provided by direct numerical simulation (DNS) of a turbulent channel flow. It is shown that ANN can establish a model similar to the gradient model. The correlation coefficients between the real SGS stress and the output of ANN are comparable to or larger than similarity models, but smaller than a two-parameter dynamic mixed model.
Polarized synchrotron emission from the equatorial current sheet in gamma-ray pulsars
Creators: name: Cerutti, Benoît
name: Mortier, Jérémy
name: Philippov, Alexander A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Polarization is a powerful diagnostic tool to constrain the site of the high-energy pulsed emission and particle acceleration in gamma-ray pulsars. Recent particle-in-cell simulations of pulsar magnetosphere suggest that high-energy emission results from particles accelerated in the equatorial current sheet emitting synchrotron radiation. In this study, we re-examine the simulation data to compute the phase-resolved polarization properties. We find that the emission is mildly polarized and that there is an anticorrelation between the flux and the degree of linear polarization (on-pulse: ~15%, off-pulse: ~30%). The decrease of polarization during pulses is mainly attributed to the formation of caustics in the current sheet. Each pulse of light is systematically accompanied by a rapid swing of the polarization angle due to the change of the magnetic polarity when the line of sight passes through the current sheet. The optical polarization pattern observed in the Crab can be well-reproduced for a pulsar inclination angle ~60 degrees and an observer viewing angle ~130 degrees. The predicted high-energy polarization is a robust feature of the current sheet emitting scenario which can be tested by future X-ray and gamma-ray polarimetry instruments.
description: 5 pages, 3 figures, Accepted for publication in MNRAS Letters
Synthesis, phase stability, structural and physical properties of 11-type iron chalcogenides
Creators: name: Rößler, Sahana
name: Koz, Cevriye
name: Wirth, Steffen
name: Schwarz, Ulrich
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: This article reviews recent experimental investigations on two binary Fe-chalcogenides: FeSe and Fe$_{1+y}$Te. The main focus is on synthesis, single crystal growth, chemical composition, as well as on the effect of excess iron on structural, magnetic, and transport properties of these materials. The structurally simplest Fe-based superconductor Fe$_{1+x}$Se with a critical temperature $T_c \approx$ 8.5 K undergoes a tetragonal to orthorhombic phase transition at a temperature $T_s \approx$ 87 K. No long-range magnetic order is observed down to the lowest measured temperature in Fe$_{1+x}$Se. On the other hand, isostructural Fe$_{1+y}$Te displays a complex interplay of magnetic and structural phase transitions in dependence on the tuning parameter such as excess amount of Fe or pressure, but it becomes a superconductor only when Te is substituted by a sufficient amount of Se. We summarize experimental evidence for different competing interactions and discuss related open questions.
description: 14 pages, 12 figures, Feature Article, Part of Special Issue on Iron-Based High Temperature Superconductors
Efficient target control of complex networks based on preferential matching
Creators: name: Zhang, Xizhe
name: Wang, Huaizhen
name: Lv, Tianyang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Controlling a complex network towards a desire state is of great importance in many applications. Existing works present an approximate algorithm to find the driver nodes used to control partial nodes of the network. However, the driver nodes obtained by this algorithm depend on the matching order of nodes and cannot get the optimum results. Here we present a novel algorithm to find the driver nodes for target control based on preferential matching. The algorithm elaborately arrange the matching order of nodes in order to minimize the size of the driver nodes set. The results on both synthetic and real networks indicate that the performance of proposed algorithm are better than the previous one. The algorithm may have various application in controlling complex networks.
An observational study of dust nucleation in Mira ($o$ Ceti): II. Titanium oxides are negligible for nucleation at high temperatures
Creators: name: Kamiński, T.
name: Müller, H. S. P.
name: Schmidt, M. R.
name: Cherchneff, I.
name: Wong, K. T.
name: Brünken, S.
name: Menten, K. M.
name: Winters, J. M.
name: Gottlieb, C. A.
name: Patel, N. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The formation of silicate dust in oxygen-rich envelopes of evolved stars is thought to be initiated by formation of seed particles that can withstand the high temperatures close to the stellar photosphere and act as condensation cores farther away from the star. Candidate species considered as first condensates are TiO and TiO$_2$. We aim to identify and characterize the circumstellar gas-phase chemistry of titanium that leads to the formation of solid titanium compounds in the envelope of $o$ Cet, the prototypical Mira, and seek an observational verification of whether titanium oxides play a major role in the onset of dust formation in M-type AGB stars. We present high angular-resolution ALMA observations at submillimeter (submm) wavelengths supplemented by APEX and Herschel spectra of the rotational features of TiO and TiO$_2$. In addition, circumstellar features of TiO and TiI are identified in optical spectra which cover multiple pulsation cycles of $o$ Cet. The submm ALMA data reveal TiO and TiO$_2$ bearing gas within the extended atmosphere of Mira. While TiO is traceable up to a radius (FWHM/2) of 4.0 R$_{\star}$, TiO$_2$ extends as far as 5.5 R$_{\star}$ and unlike TiO appears to be anisotropically distributed. Optical spectra display variable emission of TiI and TiO from inner parts of the extended atmosphere (<3 R$_{\star}$). Chemical models which include shocks are in general agreement with the observations of gas-phase titanium-bearing molecules. It is unlikely that substantial amounts of titanium is locked up in solids because the abundance of the gaseous titanium species is very high. In particular, formation of hot titanium-rich condensates is very improbable because we find no traces of their hot precursor species in the gas phase. It therefore appears unlikely that the formation of dust in Mira, and possibly other M-type AGB stars, is initiated by titanium oxides.
description: 19 pages plus spectral atlas of the TiO gamma' band in 1998-2014 submitted to A&A
Taking stock of SLSN and LGRB host galaxy comparison using a complete sample of LGRBs
Creators: name: Japelj, J.
name: Vergani, S. D.
name: Salvaterra, R.
name: Hunt, L. K.
name: Mannucci, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Long gamma-ray bursts (LGRBs) and superluminous supernovae (SLSNe) are both explosive transients with very massive progenitor stars. Clues about the nature of the progenitors can be found by investigating environments in which such transients occur. While studies of LGRB host galaxies have a long history, dedicated observational campaigns have only recently resulted in a high enough number of photometrically and spectroscopically observed SLSN hosts to allow statistically significant analysis of their properties. In this paper we make a comparison of the host galaxies of hydrogen-poor (H-poor) SLSNe and the Swift/BAT6 sample of LGRBs. In contrast to previous studies we use a complete sample of LGRBs and we address a special attention to the comparison methodology and the selection of SLSN sample whose data have been compiled from the available literature. At intermediate redshifts (0.3 < z < 0.7) the two classes of transients select galaxies whose properties (stellar mass, luminosity, star-formation rate, specific star-formation rate and metallicity) do not differ on average significantly. Moreover, the host galaxies of both classes of objects follow the fundamental metallicity relation and the fundamental plane of metallicity. In contrast to previous studies we show that at intermediate redshifts the emission line equivalent widths of the two populations are essentially the same and that the previous claims regarding the higher fraction of SLSN hosts among the extreme emission line galaxies with respect to LGRBs are mostly due to a larger fraction of strong-line emitters among SLSN hosts at z < 0.3, where samples of LGRB hosts are small and poorly defined.
description: 7 pages, 4 figures, accepted to Astronomy & Astrophysics
Spin on a 4D Feynman Checkerboard
Creators: name: Foster, Brendan Z.
name: Jacobson, Ted
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discretize the Weyl equation for a massless, spin-1/2 particle on a time-diagonal, hypercubic spacetime lattice with null faces. The amplitude for a step of right-handed chirality is proportional to the spin projection operator in the step direction, while for left-handed it is the orthogonal projector. Iteration yields a path integral for the retarded propagator, with matrix path amplitude proportional to the product of projection operators. This assigns the amplitude $i^{\pm T}\, {3}^{-B/2}\,2^{-N}$ to a path with $N$ steps, $B$ bends, and $T$ right-handed minus left-handed bends, where the sign corresponds to the chirality. Fermion doubling does not occur in this discrete scheme. A Dirac mass $m$ introduces the amplitude $iεm$ to flip chirality in any given time step $ε$, and a Majorana mass similarly introduces a charge conjugation amplitude.
description: Extends in several ways our earlier paper, arXiv:hep-th/0310166
Mental Health-Associated Symptoms among Critical Care Nurses Amid COVID-19 Pandemic: A Scoping Review Protocol
Creators: name: Bilog, Annika
name: Nick, Jan
Publisher: name: figshare
Year: 2023
Subjects: Nursing workforce

description: Introduction: Registered Nurses who provide direct care for critically ill patients are at a higher risk for psychological and moral distress. The COVID-19 pandemic increased the need for critical care services and the critical care nurses' exposure to death despite providing their best care, caused many nurses to leave the workforce. Thus, there is a need to scope the global literature on reported mental health outcomes of critical care Registered Nurses during the pandemic. Inclusion Criteria: All literature addressing mental health symptoms in critical care registered nurses in Stepdown and Intensive Care Units will be included. Literature discussing licensed vocational nurses and nurse practitioners will be excluded. In addition, literature prior to 2020 will be excluded. Methods: A literature search was done to determine that sufficient evidence exists to further explore current knowledge of mental health symptoms in critical care Registered Nurses. A 3-step search strategy will be conducted. The first step was undertaken in PubMed (NLM) to identify appropriate subject headings and text words in titles and abstracts. The second step will focus on a broader search repertoire, including seven databases, study registries, one simultaneous platform, and grey literature since 2020. The third step will include reviewing reference lists for additional sources. Studies written in any language will be considered. Studies will be independently screened for relevancy by two reviewers; disagreements will be resolved via discussion.
H0LiCOW III. Quantifying the effect of mass along the line of sight to the gravitational lens HE 0435-1223 through weighted galaxy counts
Creators: name: Rusu, Cristian E.
name: Fassnacht, Christopher D.
name: Sluse, Dominique
name: Hilbert, Stefan
name: Wong, Kenneth C.
name: Huang, Kuang-Han
name: Suyu, Sherry H.
name: Collett, Thomas E.
name: Marshall, Philip J.
name: Treu, Tommaso
name: Koopmans, Leon V. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Based on spectroscopy and multiband wide-field observations of the gravitationally lensed quasar HE 0435-1223, we determine the probability distribution function of the external convergence $κ_\mathrm{ext}$ for this system. We measure the under/overdensity of the line of sight towards the lens system and compare it to the average line of sight throughout the universe, determined by using the CFHTLenS as a control field. Aiming to constrain $κ_\mathrm{ext}$ as tightly as possible, we determine under/overdensities using various combinations of relevant informative weighing schemes for the galaxy counts, such as projected distance to the lens, redshift, and stellar mass. We then convert the measured under/overdensities into a $κ_\mathrm{ext}$ distribution, using ray-tracing through the Millennium Simulation. We explore several limiting magnitudes and apertures, and account for systematic and statistical uncertainties relevant to the quality of the observational data, which we further test through simulations. Our most robust estimate of $κ_\mathrm{ext}$ has a median value $κ^\mathrm{med}_\mathrm{ext} = 0.004$ and a standard deviation of $σ_κ= 0.025$. The measured $σ_κ$ corresponds to $2.5\%$ uncertainty on the time delay distance, and hence the Hubble constant $H_0$ inference from this system. The median $κ^\mathrm{med}_\mathrm{ext}$ value is robust to $\sim0.005$ (i.e. $\sim0.5\%$ on $H_0$) regardless of the adopted aperture radius, limiting magnitude and weighting scheme, as long as the latter incorporates galaxy number counts, the projected distance to the main lens, and a prior on the external shear obtained from mass modeling. The availability of a well-constrained $κ_\mathrm{ext}$ makes \hequad\ a valuable system for measuring cosmological parameters using strong gravitational lens time delays.
description: 24 pages, 17 figures, 6 tables. Submitted to MNRAS
Electric and magnetic energy at axion haloscopes
Creators: name: Ko, B. R.
name: Themann, H.
name: Jang, W.
name: Choi, J.
name: Kim, D.
name: Lee, M. J.
name: Lee, J.
name: Won, E.
name: Semertzidis, Y. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We review a recent letter published in Phys. Rev. Lett. $\textbf{116}$, 161804 (2016) of which the main argument is that the mode dependent magnetic form factors at axion haloscopes depend on the position of the cavity inside the solenoid while the corresponding electric form factors do not. We, however, find no such dependence, which is also equivalent to the statement that the electric and corresponding magnetic energy stored in the cavity modes are the same regardless of the position of the cavity inside the solenoid. Furthermore, we extend the statement to the cases satisfying $\vec{\nabla}\times\vec{B}_{\rm external}=0$, where $\vec{B}_{\rm external}$ is a static magnetic field provided by a magnet at an axion haloscope. Two typical magnets, solenoidal and toroidal, satisfy $\vec{\nabla}\times\vec{B}_{\rm external}=0$, thus the electric and corresponding magnetic energy stored in the cavity modes are always the same in both cases. The energy, however, is independent of the position of the cavity in axion haloscopes with a solenoid, but depends on those with a toroidal magnet.
description: 8 pages, 1 figure
Dynamics of mode-coupling-induced microresonator frequency combs in normal dispersion
Creators: name: Jang, Jae K.
name: Okawachi, Yoshitomo
name: Yu, Mengjie
name: Luke, Kevin
name: Ji, Xingchen
name: Lipson, Michal
name: Gaeta, Alexander L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally and theoretically investigate the dynamics of microresonator-based frequency comb generation assisted by mode coupling in the normal group-velocity dispersion (GVD) regime. We show that mode coupling can initiate intracavity modulation instability (MI) by directly perturbing the pump-resonance mode. We also observe the formation of a low-noise comb as the pump frequency is tuned further into resonance from the MI point. We determine the phase-matching conditions that accurately predict all the essential features of the MI and comb spectra, and extend the existing analogy between mode coupling and high-order dispersion to the normal GVD regime. We discuss the applicability of our analysis to the possibility of broadband comb generation in the normal GVD regime.
description: 10 pages, 6 figures
Sliding Window Spectrum Sensing for Full-Duplex Cognitive Radios with Low Access-Latency
Creators: name: Afisiadis, Orion
name: Austin, Andrew C. M.
name: Balatsoukas-Stimming, Alexios
name: Burg, Andreas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In a cognitive radio system the failure of secondary user (SU) transceivers to promptly vacate the channel can introduce significant access-latency for primary or high-priority users (PU). In conventional cognitive radio systems, the backoff latency is exacerbated by frame structures that only allow sensing at periodic intervals. Concurrent transmission and sensing using self-interference suppression has been suggested to improve the performance of cognitive radio systems, allowing decisions to be taken at multiple points within the frame. In this paper, we extend this approach by proposing a sliding-window full-duplex model allowing decisions to be taken on a sample-by-sample basis. We also derive the access-latency for both the existing and the proposed schemes. Our results show that the access-latency of the sliding scheme is decreased by a factor of 2.6 compared to the existing slotted full-duplex scheme and by a factor of approximately 16 compared to a half-duplex cognitive radio system. Moreover, the proposed scheme is significantly more resilient to the destructive effects of residual self-interference compared to previous approaches.
description: Published in IEEE VTC Spring 2016, Nanjing, China
The slow death of most galaxies
Creators: name: Cattaneo, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: For most galaxies, the shutdown of star formation was a slow process that took four billion years. An analysis of thousands of galaxies suggests that 'strangulation' by their environment was the most likely cause. See Letter on page 192 of Peng, Maiolino and Cochrane (2015), Nature, vol. 521.
description: This a nearly final draft of a News and Views appeared on Nature in May 2015. It also summarises the content of the talk "Shutdown and downsizing" that I presented at the EWASS meeting "How galaxies live and die: the onset and end of star formation across cosmic time" (Athens, Greece, 6th July 2016)
The isolation of Luminous Blue Variables: On subdividing the sample
Creators: name: Smith, Nathan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A debate has arisen concerning the fundamental nature of LBVs) and their role in stellar evolution. While Smith and Tombleson proposed that their isolated environments indicate that LBVs must be largely the product of binary evolution, Humphreys et al. have recently expressed the view that the traditional single-star view still holds if one appropriately selects a subsample of LBVs. This paper finds the claim of Humphreys et al. to be quantitatively unjustified. A statistical test of "candidate" as opposed to "confirmed" LBVs shows no significant difference ($
description: 9 pages, 3 figs. Accepted/in press
Redefining the boundaries of interplanetary coronal mass ejections from observations at the ecliptic plane
Creators: name: Cid, C.
name: Palacios, J.
name: Saiz, E.
name: Guerrero, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: On 2015 January 6-7, an interplanetary coronal mass ejection (ICME) was observed at L1. This event, which can be associated with a weak and slow coronal mass ejection, allows us to discuss on the differences between the boundaries of the magnetic cloud and the compositional boundaries. A fast stream from a solar coronal hole surrounding this ICME offers a unique opportunity to check the boundaries' process definition and to explain differences between them. Using Wind and ACE data, we perform a complementary analysis involving compositional, magnetic, and kinematic observations providing relevant information regarding the evolution of the ICME as travelling away from the Sun. We propose erosion, at least at the front boundary of the ICME, as the main reason for the difference between the boundaries, and compositional signatures as the most precise diagnostic tool for the boundaries of ICMEs.
description: 9 pages and 7 figures in the original format
Background model for the MAJORANA DEMONSTRATOR
Creators: name: Cuesta, C.
name: Abgrall, N.
name: Arnquist, I. J.
name: Avignone, F. T.
name: Barabash, A. S.
name: Bertrand, F. E.
name: Bradley, A. W.
name: Brudanin, V.
name: Busch, M.
name: Buuck, M.
name: Caldwell, T. S.
name: Chan, Y-D.
name: Christofferson, C. D.
name: Chu, P. -H.
name: Detwiler, J. A.
name: Dunagan, C.
name: Efremenko, Yu.
name: Ejiri, H.
name: Elliott, S. R.
name: Fullmer, A.
name: Galindo-Uribarri, A.
name: Gilliss, T.
name: Giovanetti, G. K.
name: Green, M. P.
name: Gruszko, J.
name: Guinn, I. S.
name: Guiseppe, V. E.
name: Henning, R.
name: Hoppe, E. W.
name: Howe, M. A.
name: Jasinski, B. R.
name: Keeter, K. J.
name: Kidd, M. F.
name: Konovalov, S. I.
name: Kouzes, R. T.
name: Leon, J.
name: Lopez, A. M.
name: MacMullin, J.
name: Martin, R. D.
name: Massarczyk, R.
name: Meijer, S. J.
name: Mertens, S.
name: Orrell, J. L.
name: O'Shaughnessy, C.
name: Poon, A. W. P.
name: Radford, D. C.
name: Rager, J.
name: Rielage, K.
name: Robertson, R. G. H.
name: Romero-Romero, E.
name: Shanks, B.
name: Shirchenko, M.
name: Suriano, A. M.
name: Tedeschi, D.
name: Trimble, J. E.
name: Varner, R. L.
name: Vasilyev, S.
name: Vetter, K.
name: Vorren, K.
name: White, B. R.
name: Wilkerson, J. F.
name: Wiseman, C.
name: Xu, W.
name: Yakushev, E.
name: Yu, C. -H.
name: Yumatov, V.
name: Zhitnikov, I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The MAJORANA Collaboration is constructing a system containing 44 kg of high-purity Ge (HPGe) detectors to demonstrate the feasibility and potential of a future tonne-scale experiment capable of probing the neutrino mass scale to ~15 meV. To realize this, a major goal of the MAJORANA DEMONSTRATOR is to demonstrate a path forward to achieving a background rate at or below 1 count/(ROI-t-y) in the 4 keV region of interest (ROI) around the Q-value at 2039 keV. This goal is pursued through a combination of a significant reduction of radioactive impurities in construction materials and analytical methods for background rejection, for example using powerful pulse shape analysis techniques profiting from the p-type point contact HPGe detectors technology. The effectiveness of these methods is assessed using simulations of the different background components whose purity levels are constrained from radioassay measurements. Preliminary background results obtained during the engineering runs of the Demonstrator are presented.
description: 3 pages, 3 figures
Integrable boundary conditions for multi-species ASEP
Creators: name: Crampe, N.
name: Finn, C.
name: Ragoucy, E.
name: Vanicat, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The first result of the present paper is to provide classes of explicit solutions for integrable boundary matrices for the multi-species ASEP with an arbitrary number of species. All the solutions we have obtained can be seen as representations of a new algebra that contains the boundary Hecke algebra. The boundary Hecke algebra is not sufficient to build these solutions. This is the second result of our paper.
description: 20 pages
UV spectroscopy of the blue supergiant SBW1: the remarkably weak wind of a SN 1987A analog
Creators: name: Smith, Nathan
name: Groh, Jose H.
name: France, Kevin
name: McCray, Richard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Galactic blue supergiant SBW1 with its circumstellar ring nebula represents the best known analog of the progenitor of SN 1987A. High-resolution imaging has shown H-alpha and IR structures arising in an ionized flow that partly fills the ring's interior. To constrain the influence of the stellar wind on this structure, we obtained an ultraviolet (UV) spectrum of the central star of SBW1 with the HST Cosmic Origins Spectrograph (COS). The UV spectrum shows none of the typical wind signatures, indicating a very low mass-loss rate. Radiative transfer models suggest an extremely low rate below 10$^{-10}$ Msun/yr, although we find that cooling timescales probably become comparable to or longer than the flow time below 10$^{-8}$ Msun/yr. We therefore adopt this latter value as a conservative upper limit. For the central star, the model yields $T_{\rm eff}$=21,000$\pm$1000 K, $L\simeq$5$\times$10$^4$ $L_{\odot}$, and roughly Solar composition except for enhanced N abundance. SBW1's very low mass-loss rate may hinder the wind's ability to shape the surrounding nebula. The very low mass-loss rate also impairs the wind's ability to shed angular momentum; the spin-down timescale for magnetic breaking is more than 500 times longer than the age of the ring. This, combined with the star's slow rotation rate, constrain merger scenarios to form ring nebulae. The mass-loss rate is at least 10 times lower than expected from mass-loss recipes, without any account of clumping. The physical explanation for why SBW1's wind is so weak presents an interesting mystery.
description: 12 pages, 6 figs. submitted to MNRAS. comments welome
A New Android Malware Detection Approach Using Bayesian Classification
Creators: name: Yerima, Suleiman Y.
name: Sezer, Sakir
name: McWilliams, Gavin
name: Muttik, Igor
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Mobile malware has been growing in scale and complexity as smartphone usage continues to rise. Android has surpassed other mobile platforms as the most popular whilst also witnessing a dramatic increase in malware targeting the platform. A worrying trend that is emerging is the increasing sophistication of Android malware to evade detection by traditional signature-based scanners. As such, Android app marketplaces remain at risk of hosting malicious apps that could evade detection before being downloaded by unsuspecting users. Hence, in this paper we present an effective approach to alleviate this problem based on Bayesian classification models obtained from static code analysis. The models are built from a collection of code and app characteristics that provide indicators of potential malicious activities. The models are evaluated with real malware samples in the wild and results of experiments are presented to demonstrate the effectiveness of the proposed approach.
description: IEEE 27th International Conference on Advanced Information Networking and Applications (AINA 2013),pp.121-128, 25-28 March 2013