cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A new class of $(2+1)$-d topological superconductor with $\mathbb{Z}_8$ topological classification
Creators: name: Qi, Xiao-Liang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The classification of topological states of matter depends on spatial dimension and symmetry class. For non-interacting topological insulators and superconductors the topological classification is obtained systematically and nontrivial topological insulators are classified by either integer or $Z_2$. The classification of interacting topological states of matter is much more complicated and only special cases are understood. In this paper we study a new class of topological superconductors in $(2+1)$ dimensions which has time-reversal symmetry and a $\mathbb{Z}_2$ spin conservation symmetry. We demonstrate that the superconductors in this class is classified by $\mathbb{Z}_8$ when electron interaction is considered, while the classification is $\mathbb{Z}$ without interaction.
description: 5 pages main text and 3 pages appendix. 1 figure
Measurements of Dynamo Activity and Spots of Zero-Age Main-Sequence Stars with TESS
Creators: name: Yamashita, Mai
name: Itoh, Yoichi
name: Takagi, Yuhei
name: Oasa, Yumiko
Publisher: name: Zenodo
Year: 2023
Subjects: stars: activity
stars: chromospheres
stars: flare
starspots
techniques: photometric

description: Zero-age main-sequence stars (ZAMSs) are considered to have enormous starspots and show strong chromospheric emission lines because of their strong surface magnetic field. Marsden, Carter, \& Donati (2009, MNRAS, 399, 888) investigated Ca II infrared triplet (IRT ; $\lambda 8498, 8542, 8662 \, \mathrm{\angstrom}$) emission line of ZAMSs in young open clusters, IC 2391 ($50\,\mathrm{Myr}$) and IC 2602 ($30\,\mathrm{Myr}$). The objects having smaller Rossby number ($N_{\rm R} \equiv$ rotational period $P$ / convective turnover time $\tau_{\rm c}$) tend to show strong emission lines. For the stars with $\log N_{\rm R} \geq -0.8$, $R^{\prime}_{\lambda 8542}$, the ratio of the surface flux of the Ca\,\emissiontype{II} IRT emission line at $\lambda 8542\,\mathrm{\angstrom}$ to the stellar bolometric luminosity, increases with decreasing $N_{\rm R}$ (the unsaturated regime). For the stars with $\log N_{\rm R} \leq -0.8$, $R^{\prime}_{\lambda 8542}$ is constant (the saturated regime). We discuss the dynamo activities of ZAMSs with their periodic light variation caused by a starspot and with the strength of the chromospheric emission lines. The amplitudes of the light curves of 46 ZAMSs in IC 2391 and IC 2602 were measured with {\it TESS} photometric data. The light curves can be grouped into the following four categories; single frequency, double-dipped, beater, and irregular variability. The amplitudes of the light curves are $0.001-0.145\,\mathrm{mag}$, which are similar to those of ZAMSs in Pleiades (Rebull et al. 2016, AJ, 152, 133). The starspot coverages are $0.1-17\%$. It is known that the solar-type superflare stars with the large amplitude of the light curve have strong Ca II IRT emission line (Notsu et al. 2015, PASJ, 67, 33). We found that the light variations and $R^{\prime}_{\lambda 8542}$ of the ZAMSs are as large as those of the most active superflare stars and three orders larger than those of the Sun. It is suggested that the high magnetic activity similar to that of the Sun continues from $30\, \mathrm{Myr}$ old.
 ZAMSs with single frequency in the light curve tend to have both large light variation, indicating large spot coverage, and saturated $R^{\prime}_{\rm \lambda 8542}$. ZAMSs with irregular variability have small spot coverage ($\lesssim 1 \%$) and small $R^{\prime}_{\rm \lambda 8542}$.
 We also detected $32$ flares in the {\it TESS} light curves of 14 ZAMSs. The energy of the flares are estimated as $\sim 10^{33}-10^{35}\,\mathrm{erg}$, which are comparable to the energy of superflare.
Forschung & Entwicklung: Alte Herausforderungen, neue Entwicklungen?
Creators: name: Leutwyler, Bruno
name: Brovelli, Dorothee
name: Brühwiler, Christian
Publisher: name: Schweizerische Gesellschaft für Lehrerinnen- und Lehrerbildung
Year: 2022
Subjects: Forschung & Entwicklung
Lehrerinnen- und Lehrerbildung
Forschung und Lehre
Evidenzbasierung

description: Der vorliegende Beitrag thematisiert aktuelle Herausforderungen zu Forschung & Entwicklung in der deutschschweizerischen Lehrerinnen- und Lehrerbildung. Im Fokus stehen drei strategische Stossrichtungen, welche die Kammer Pädagogische Hochschulen von swissuniversities in ihrer Strategie 2021-2024 benannt hat: die weitere Entwicklung des Leistungsauftrags «Forschung & Entwicklung», die Verbindung von Forschung und Lehre sowie die Evidenzbasierung in der Lehrerinnen- und Lehrerbildung. Als Beitrag zu einer Jubiläumsnummer zeichnet dieser Artikel nach, wie diese Themen in den letzten vier Jahrzehnten in den «Beiträgen zur Lehrerinnen- und Lehrerbildung» diskutiert wurden, und stellt Überlegungen für künftige Entwicklungen zur Diskussion.
Dynamical Relaxation of Coronal Magnetic Fields. III. 3D Spiral Nulls
Creators: name: Fuentes-Fernandez, Jorge
name: Parnell, Clare E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: The majority of studies on stressed 3D magnetic null points consider magnetic reconnection driven by an external perturbation, but the formation of a genuine current sheet equilibrium remains poorly understood. This problem has been considered more extensively in two-dimensions, but lacks a generalization into 3D fields. Aims: 3D magnetic nulls are more complex than 2D nulls and the field can take a greater range of magnetic geometries local to the null. Here, we focus on one type and consider the dynamical non-resistive relaxation of 3D spiral nulls with initial spine-aligned current. We aim to provide a valid magnetohydrostatic equilibrium, and describe the electric current accumulations in various cases, involving a finite plasma pressure. Methods: A full MHD code is used, with the resistivity set to zero so that reconnection is not allowed, to run a series of experiments in which a perturbed spiral 3D null point is allowed to relax towards an equilibrium, via real, viscous damping forces. Changes to the initial plasma pressure and other magnetic parameters are investigated systematically. Results: For the axi-symmetric case, the evolution of the field and the plasma is such that it concentrates the current density in two cone-shaped regions along the spine, thus concentrating the twist of the magnetic field around the spine, leaving a radial configuration in the fan plane. The plasma pressure redistributes in order to maintain the current density accumulations. However, it is found that changes in the initial plasma pressure do not modify the final state significantly. In the cases where the initial magnetic field is not axi-symmetric, a infinite-time singularity of current perpendicular to the fan is found at the location of the null.
Stress balance in nano-patterned N/Cu(001) surfaces
Creators: name: Hong, S.
name: Rahman, T. S.
name: Ciftlikli, E. Z.
name: Hinch, B. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We employ helium atom scattering (HAS) and density functional theory (DFT) based on the ultrasoft pseudopotential scheme and the plane-wave basis set to investigate the strain and stress balance in nano-patterned N/Cu(001) surfaces. HAS shows that, with increasing N coverage (and decreasing stripe widths), the stress-relief-driven lateral expansion of the averaged lattice parameter within finite-sized N-containing patches reduces from 3.5% to 1.8% and that, beyond a critical exposure, the lateral expansion of the patches increases again slightly, to 2.4%. The latter implies that in this higher coverage range the compressive stress is partially relieved via another mechanism, which turns out to be nucleation of Cu-vacancy trenches. In full agreement with the above and previous experimental observations, DFT calculations show that an optimized N-induced c(2\times2) structure has a net surface stress level of 4.2 N/m and such stress is effectively relieved when stripes of clean Cu(001) form along the <100> direction or when trench-like steps of Cu atoms form along the <110> direction. Additionally, the calculations demonstrate that (contrary to earlier suggestions) rumpling displacements within the outermost Cu layer do not act to relieve the compressive surface stress levels and that, while clock-like displacements could relieve stress levels, such displacements are energetically unstable.
Empirical rules for debris flow travel distance : a comparison of field data
Creators: name: Busslinger, Matthias
Publisher: name: University of British Columbia
Year: 2010

description: Assessment of debris flow travel distance is an essential part of landslide risk management. Confidence in applying empirical rules in conditions different from their original study area is generally small. This research provides a systematic, quantitative approach to assess the utility of an empirical-statistical tool (UBCDFLOW), originally developed for the Queen Charlotte Islands, in the Kootenay area with different geo-bio-climatic conditions. High quality ground-based debris flow volume measurements are essential for this research. A systematic traversing method is described and illustrated for two example events. It is particularly useful to analyse volume change processes (entrainment, deposition), quantify volume magnitudes and examine travel distances. Data gathered can be used to compare debris flow inventories and run a variety of empirical or dynamic analysis tools. Compared to the Queen Charlotte Islands (QCI) the Kootenay study area has different geo-bio-climatic conditions, with larger event magnitudes and travel distances. Similarities were found for dominant volume change processes as a function of slope angles. Average yield rates in the Kootenays (2 to 3m³/m) are significantly smaller than on the QCI (12 and 23 m³/m). Applicability of UBCDFLOW in the Kootenay area is evaluated based on three quantitative measures for simulation success regarding volume change process, magnitude and travel distance. The empirical rules capture the volume change process (entrainment, deposition) correctly for 80% of the lengths in the Kootenay inventory and therefore appear to be portable from the QCI location. However the regression equations overestimate the magnitude of volume change. In total, 15 out of 22 simulations terminate within 89 and 110% of the observed travel distance; the remaining 7 simulations exceed it by more than 110%. Concerns that UBCDFLOW is sensitive to variations in slope angle input (±2°) are addressed in a Monte Carlo type analysis. For 13 (of 22) events, simulation of process is found sensitive, and 11 (of 22) experience considerable uncertainty in volume estimation, which ultimately yields uncertainty of travel distance estimate. Based on confidence limits for volume estimates and travel distance exceedance probability, the Monte Carlo simulation output allows more informed decision making.
Recurrent dust formation by WR 48a on a 30-year timescale
Creators: name: Williams, Peredur M.
name: van der Hucht, Karel A.
name: van Wyk, Francois
name: Marang, Fred
name: Whitelock, Patricia A.
name: Bouchet, Patrice
name: Gunawan, Diah Y. A. Setia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present infrared photometry of the WC8 Wolf-Rayet system WR 48a observed with telescopes at ESO, the SAAO and the AAT between 1982 and 2011 which show a slow decline in dust emission from the previously reported outburst in 1978--79 until about 1997, when significant dust emission was still evident. This was followed by a slow rise, accelerating to reach and overtake the first (1978) photometry, demonstrating that the outburst observed in 1978--79 was not an isolated event, but that they recur at intervals of 32+ years. This suggests that WR 48a is a long-period dust maker and colliding-wind binary (CWB). The locus of WR 48a in the (H-L), K colour-magnitude diagram implies that the rate of dust formation fell between 1979 and about 1997 and then increased steadily until 2011. Superimposed on the long-term variation are secondary (`mini') eruptions in (at least) 1990, 1994, 1997, 1999 and 2004, characteristic of relatively brief episodes of additional dust formation. Spectra show evidence for an Oe or Be companion to the WC8 star, supporting the suggestion that WR 48a is a binary system and indicating a system luminosity consistent with the association of WR 48a and the young star clusters Danks 1 and Danks 2. The range of dust formation suggests that these stars are in an elliptical orbit having e ~ 0.6. The size of the orbit implied by the minimum period, together with the WC wind velocity and likely mass-loss rate, implies that the post-shock WC wind is adiabatic throughout the orbit -- at odds with the observed dust formation. A similar conflict is observed in the `pinwheel' dust-maker WR 112.
description: 15 pages, 8 figures, accepted for publication in MNRAS
Übersetzungstools im Fremdsprachenunterricht - "eine riesige Evolution im Gange"
Creators: name: Diederich, Catherine
Publisher: name: Pädagogische Hochschule St.Gallen
Year: 2022
Subjects: Online-Übersetzungstools
Fremdsprachenunterricht
Sekundarstufe I
Aufgabenentwicklung
Aufgabenerprobung

description: Online-Übersetzungstools sind im Fremdsprachengebrauch nicht mehr wegzudenken, zumal sie schnelle und meist qualitativ hochwertige Übersetzungen bieten. Wie soll aber im Fremdsprachenklassenzimmer mit diesen Tools umgegangen werden? Das Projekt Tools@Schools entwickelt Aufgaben, mit denen der Einsatz von Übersetzungstools im Fremdsprachenunterricht der Sek I thematisiert und geübt werden kann.
Newly-born pulsars as sources of ultrahigh energy cosmic rays
Creators: name: Fang, Ke
name: Kotera, Kumiko
name: Olinto, Angela V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Newly-born pulsars offer favorable sites for the injection of heavy nuclei, and for their further acceleration to ultrahigh energies. Once accelerated in the pulsar wind, nuclei have to escape from the surrounding supernova envelope. We examine this escape analytically and numerically, and discuss the pulsar source scenario in light of the latest ultrahigh energy cosmic ray (UHECR) data. Our calculations show that, at early times, when protons can be accelerated to energies E>10^20 eV, the young supernova shell tends to prevent their escape. In contrast, because of their higher charge, iron-peaked nuclei are still accelerated to the highest observed energies at later times, when the envelope has become thin enough to allow their escape. Ultrahigh energy iron nuclei escape newly-born pulsars with millisecond periods and dipole magnetic fields of ~10^(12-13) G, embedded in core-collapse supernovae. Due to the production of secondary nucleons, the envelope crossing leads to a transition of composition from light to heavy elements at a few EeV, as observed by the Auger Observatory. The escape also results in a softer spectral slope than that initially injected via unipolar induction, which allows for a good fit to the observed UHECR spectrum. We conclude that the acceleration of iron-peaked elements in a reasonably small fraction (< 0.01%) of extragalactic rotation-powered young pulsars would reproduce satisfactorily the current UHECR data. Possible signatures of this scenario are also discussed.
description: 18 pages, 5 figures, accepted by ApJ
Boletín Fármacos: Propiedad Intelectual 2022; 25(4)
Creators: name: Salud y Fármacos
Publisher: name: Salud y Fármacos
Year: 2022
Subjects: Propiedad intelectual
Acceso a medicamentos
Tratados de Libre Comercio (TLC)
Exclusividad en el mercado
Patentes
Protección de datos con exclusividad
Covid-19

description: Boletín Fármacos es un boletín electrónico de la organización Salud y Fármacos (https://www.saludyfarmacos.org/) que se publica cuatro veces al año: febrero, mayo, agosto y noviembre.
El "Boletín Fármacos: Propiedad Intelectual" incluye información sobre la accesibilidad de los medicamentos, así como sobre las políticas y regulaciones que impiden el acceso a los medicamentos a precios asequibles y las respuestas a esos retos, abordando la relación de diferentes actores con la propiedad intelectual. Además, contiene datos de los tratados de libre comercio, la exclusividad en el mercado, las patentes y la protección de datos con exclusividad, entre otros.
Este documento corresponde al 2022, Vol. 25, N°4.
Boletín Fármacos: Ensayos Clínicos 2022; 25(4)
Creators: name: Salud y Fármacos
Publisher: name: Salud y Fármacos
Year: 2022
Subjects: Ensayos clínicos
Reclutamiento de sujetos de investigación
Investigación en seres humanos
Ética de los ensayos clínicos
Metodología de los ensayos clínicos
Conflictos de interés
Consentimiento informado
Regulación de ensayos clínicos
Transparencia de agencias reguladoras, industrias innovadoras y organizaciones de investigación por contrato
CRO
Globalización y ensayos clínicos
Comités de Ética en Investigación
Políticas, regulación, registro y diseminación de resultados
Perspectivas de los pacientes

description: Boletín Fármacos es un boletín electrónico de la organización Salud y Fármacos (https://www.saludyfarmacos.org/) que se publica cuatro veces al año: febrero, mayo, agosto y noviembre.

El Boletín Fármacos: Ensayos Clínicos presenta información sobre el creciente reclutamiento de sujetos de investigación en países de bajos y medianos ingresos; las dimensiones éticas de la investigación en seres humanos; aspectos metodológicos de los ensayos clínicos que pueden comprometer la pertinencia, el valor social y la calidad de la investigación, y por lo tanto contribuir a violar los derechos humanos de los participantes y comprometer la calidad de los datos; los conflictos de interés por parte de los investigadores y de los centros de investigación; los aspectos relacionados con el proceso de toma del consentimiento informado y con su comprensión, y temas sobre la regulación de los ensayos clínicos, su registro y la diseminación oportuna y precisa de los resultados. De particular interés es la información relativa a la transparencia de las agencias reguladoras, de las industrias innovadoras, y de las Organizaciones de Investigación por Contrato o CROs

Este documento corresponde al 2022, Vol. 25, N°4.
Professionswissen von Sportlerpersonen und Zusammenhänge mit motivationalen Orientierungen und Überzeugungen zum Lehren und Lernen im Spor
Creators: name: Büchel, Sonja
name: Brühwiler, Christian
name: Egger, Patrick
name: Hochweber, Ann Christin
name: Kolovou, Dimitra
name: Perret, Jacqueline
Publisher: name: Springer
Year: 2022
Subjects: Fachdidaktisches Wissen
Fachwissen
Messung professioneller Kopetenzen
Sportunterricht
Ausprägungen professioneller Kompetenzen

description: Während in gewissen Fächern Zusammenhänge zwischen verschiedenen Aspekten professioneller Kompetenz von Lehrpersonen nachgewiesen werden konnten, stehen entsprechende Befunde für das Fach Sport noch aus. Eine Voraussetzung dafür ist die Entwicklung standardisierter und valider Testinstrumente zur Messung fachbezogenen Professionswissens. In der vorliegenden Studie wurde ein Instrument zur Erfassung des fachlichen und fachdidaktischen Wissens von Sportlehrpersonen der Primarstufe und der Sekundarstufe I entwickelt und an einer Stichprobe von 339 Proband:innen empirisch geprüft. Zudem wurden Zusammenhänge mit weiteren Kompetenzaspekten der Sportlehrpersonen, den motivationalen Orientierungen und Überzeugungen, untersucht. Dabei wurde exemplarisch der curriculare Inhaltsbereich "Bewegen an Geräten: Rollen und Drehen" fokussiert. Die Ergebnisse zeigen, dass insbesondere das Fachwissen positiv mit motivationalen Orientierungen zusammenhängt. Hingegen weisen Überzeugungen keine bedeutsamen Zusammenhänge mit dem Professionswissen auf. Die Ergebnisse deuten darauf hin, dass die Instrumente empirisch valide sind. Im Rahmen der Studie wurde zu Händen der Auftraggeber:innen ein online zugänglicher Schlussbericht erstellt. Gewisse Ausführungen in vorliegendem Beitrag orientieren sich daran, da diese für das Verständnis und die Konsistenz zentral sind. Der vorliegende Beitrag stärkt im Vergleich zum Schlussbericht insbesondere die theoretische Verortung, spezifiziert die Fragestellungen, verdichtet die Ergebnisse und soll fokussiert einer breiteren Leserschaft zugänglich gemacht werden.
Boletín Fármacos: Economía, Acceso y Precios 2022; 25(4)
Creators: name: Salud y Fármacos
Publisher: name: Salud y Fármacos
Year: 2022
Subjects: Accesibilidad de medicamentos
Asequibilidad de medicamentos
Políticas de acceso a medicamentos
Políticas de precios de medicamentos
Innovación de medicamentos
Medicamentos genéricos y biosimilares
Modelos de compras farmacéuticas
Producción pública
Negocio farmacéutico
Industrias farmacéuticas
Acceso y precios
Compras
Producción y negocios
Covid-19

description: Descripción: Boletín Fármacos es un boletín electrónico de la organización Salud y Fármacos (https://www.saludyfarmacos.org/) que se publica cuatro veces al año: febrero, mayo, agosto y noviembre.
El "Boletín Fármacos: Economía, Acceso y Precios" incluye información sobre la accesibilidad y asequibilidad de los medicamentos, así como sobre las políticas y regulaciones que impiden el acceso a los medicamentos a precios asequibles y las respuestas a esos retos. Además, este volumen incluye información sobre innovación, medicamentos genéricos y biosimilares, modelos de compras que pueden abaratar el costo de los medicamentos, producción pública, el negocio farmacéutico y el desempeño de las industrias farmacéuticas.
Este documento corresponde al 2022, Vol. 25, N°4.
Essays on Integrated Agency
Creators: name: Sun, Angela
Publisher: name: My University
Year: 2022
Subjects: subject: philosophy
subject: integrity
subject: self-governance
subject: practical reason
subject: agency
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Humanities
subject: FOS: Humanities

description: This dissertation offers an account of the role of integrity in our agency. I argue that the unification of our actions, commitments, intentions, and other facets agency into a coherent whole is essential for our self-governance: our ability to be the authors of our own lives and to act in ways that reflect what we stand for. When we are fragmented – when our commitments conflict, or we otherwise fail to live up to what they require of us – we experience inner conflicts that hinder our ability to be self-governing. However, integrity is not the only thing that matters for our agency. Throughout the dissertation, I remain sensitive to the limits of integrity’s value, as well as to ways that non-ideal circumstances prevent many people from integrating their agency.
Boletín Fármacos: Agencias Reguladoras 2022; 25(4)
Creators: name: Salud y Fármacos
Publisher: name: Salud y Fármacos
Year: 2022
Subjects: Medicamentos
Agencias reguladoras
Regulación internacional
América Latina
EMA
FDA
Regulación de medicamentos en países de altos ingresos
Regulación de medicamentos en países de medianos y bajos ingresos
Covid-19

description: Boletín Fármacos es un boletín electrónico de la organización Salud y Fármacos (https://www.saludyfarmacos.org/) que se publica cuatro veces al año: febrero, mayo, agosto y noviembre.
El "Boletín Fármacos: Agencias Reguladoras" incluye información sobre el desempeño de las agencias reguladoras en materia de medicamentos, tanto las de países de altos ingresos como las de países de medianos y bajos ingresos.
Este documento corresponde al 2022, Vol. 25, N°4.
Live for the moment : exploring the relationship between enactments of anonymity and time perspective
Creators: name: Haggadone, Brad Alan
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Anonymity
Time perspective

description: This dissertation explores the relationship between identity and time. Specifically, it tests the relationship between time perspective and enactments of anonymity. Working from a sociomaterial lens, two studies were conducted using both an offline population and various online communities. The first study recruited students to fill out a questionnaire which included both questions about their online habits and a short form of the Zimbardo Time Perspective Inventory (Zhang et al., 2013). Additionally, participants were asked if they would be likely to use an anonymous, pseudonymous, or identified website in various hypothetical situations. The second study involved recruiting participants from various online communities (e.g., Facebook, Reddit, 4chan, and 8chan). Study 2 participants were also given a short version of The Zimbardo Time Perspective Inventory as well as questions about their participation in the online community they were recruited from. Findings of the studies suggest that there is a significant relationship between present-hedonism and anonymity if group identification is taken into account. There is also evidence of a positive relationship between a future time perspective and using identified websites. This evidence supports three main conclusions that can be drawn from the data. First, that the material structures of a community (i.e., the community’s level of identifiability) can influence their tendencies related to their time perspectives. Second, the mechanism the causes individuals to exhibit for hedonistic anti-social behavior may not be cruelty but because the individuals are not thinking through the consequences (for neither themselves nor others). Finally, it is possible for a more long-term temporal structure to be created by increasing the dimensions of identity present in CMC environments.
Gas and dust in a z=2.8 obscured quasar
Creators: name: Schumacher, Hana
name: Martínez-Sansigre, Alejo
name: Lacy, Mark
name: Rawlings, Steve
name: Schinnerer, Eva
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new detections of the CO(5-4), CO(7-6), [CI](1-0) and [CI](2-1) molecular and atomic line transitions towards the unlensed, obscured quasar AMS12 (z=2.7672), observed with the IRAM PdBI. This is the first unlensed, high redshift source to have both [CI] transitions detected. Continuum measurements between 70 $μ$m and 3 mm are used to constrain the FIR SED, and we find a best fit FIR luminosity of log[Lfir/Lsol] = 13.5+/-0.1, dust temperature T_d = 88+/-8 K and emissivity index β = 0.6+/-0.1. The highly-excited molecular gas probed by CO(3-2), (5-4) and (7-6), is modelled with large velocity gradient (LVG) models. The gas kinetic temperature T_g, density n(H2), and the characteristic size r0, are determined using the dust temperature from the FIR SED as a prior for the gas temperature. The best fitting parameters are T_g = 90+/-8 K, n(H2) = 10^(3.9+/-0.1) cm^(-3) and r0 = 0.8+/-0.04 kpc. The ratio of the [CI] lines gives a [CI] excitation temperature of 43+/-10 K, indicating the [CI] and the high-excitation CO are not in thermal equilibrium. The [CI] excitation temperature is below that of T_d and T_g of the high-excitation CO, perhaps because [CI] lies at a larger radius where there may also be a large reservoir of CO at a cooler temperature, perhaps detectable through the CO(1-0). Using the [CI](1-0) line we can estimate the strength of the CO(1-0) line and hence the gas mass. This suggests that a significant fraction (~30%) of the molecular gas is missed from the high-excitation line analysis. The Eddington limited black hole mass is found from the bolometric luminosity to be Mbh >~ 1.5x10^9 Msol. Along with the stellar mass of 3x10^11 Msol, these give a black hole - bulge mass ratio of Mbh/Mbulge >~ 0.005. This is in agreement with studies on the evolution of the Mbh/Mbulge relationship at high redshifts, which find a departure from the local value ~0.002.
description: Accepted by MNRAS, 17 pages, 9 figures
Cylindrically Symmetric Inhomogeneous Universes with a Cloud of Strings
Creators: name: Yadav, Anil Kumar
name: Yadav, Vineet Kumar
name: Yadav, Lallan
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Cylindrically symmetric inhomogeneous string cosmological models are investigated in presence of string fluid as a source of matter. To get the three types of exact solutions of Einstein's field equations we assume $A = f(x)k(t)$, $B = g(x)\ell(t)$ and $C = h(x)\ell(t)$. Some physical and geometric aspects of the models are discussed.
description: 9 pages
Blueprint of Shopping Center Parking Space Alternate Sketch, September 28, 1939
Creators: name: Smythe, Richard Haviland
name: Melville, Ward, 1887-1977
name: Organization, Ward Melville Heritage
name: Stony Brook Community Fund
Publisher: name: Unknown
Year: 0
Subjects: Stony Brook
Sketches
Blueprints
Plans
Architects
Shopping centers
Architectural drawings
Stores & shops

description: This blueprint shows an alternative sketch of a shopping center parking areas located in Stony Brook, L. I. This plan was completed by architect Richard Haviland Smythe, located at 681 fifth avenue, New York.
Boletín Fármacos: Políticas 2022; 25(4)
Creators: name: Salud y Fármacos
Publisher: name: Salud y Fármacos
Year: 2022
Subjects: Políticas de medicamentos
Políticas farmacéuticas
Políticas globales
América Latina
Europa
África
Estados Unidos y Canadá
Asia
Organismos internacionales
Covid-19

description: Boletín Fármacos es un boletín electrónico de la organización Salud y Fármacos (https://www.saludyfarmacos.org/) que se publica cuatro veces al año: febrero, mayo, agosto y noviembre.
El "Boletín Fármacos: Políticas" incluye información sobre evaluaciones de políticas de medicamentos, así como las políticas que están en discusión o que han adoptado diferentes países del mundo.
Este documento corresponde al 2022, Vol. 25, N°4.
Multi-hazard risk assessment : an interdependency approach
Creators: name: Juarez Garcia, Hugon
Publisher: name: University of British Columbia
Year: 2010

description: This research began with the Joint Infrastructure Interdependencies Research Program (JIIRP). JIIRP was part of an effort by the Government of Canada to fund research to develop innovative ways to mitigate large disaster situations. An interdependency simulator (I2Sim) was developed in the University of British Columbia through this project. This tool was developed to take into account the dynamic changes of the functional conditions of any given system. This thesis makes two major contributions to the capability of the simulator’s methodology, to handle seismic events and events that affect dense concentrations of people. The distinguishing characteristic of an earthquake event can affect the city and all the surrounding regions, causing damage to all lifeline systems. In its original form, I2Sim could model the damage and impact of each system on its own, but was unable to account for the effects of all other systems. The interdependency between systems is a crucial element for determining the impact of an earthquake and the time for recovery. The methodology proposed here can be used to measure Interdependencies and Resiliency in a region. Two cases were studied and implemented to test the methodology and the simulator. The first one was an earthquake hazard in a relatively small region (UBC Campus) in which the interdependencies and resiliency would be revealed to the emergency managers of UBC Campus; the second one, was a localized event in a massive sporting event (Winter Olympics in Vancouver), a black out in a Football Stadium that caused an uncontrolled egress, and related casualties due to a collapsing stage and the evacuation process were modelled. With the methodology and the simulator (I2Sim) it is possible to build up Region models, Disaster Scenarios, Objective Functions and Emergency Planning; and these, along with Interdependency and Resiliency calculations, will help in the preparedness, planning, response and recovery phases of any disaster.
Extended Smoothed Boundary Method for Solving Partial Differential Equations with General Boundary Conditions on Complex Boundaries
Creators: name: Yu, Hui-Chia
name: Chen, Hsun-Yi
name: Thornton, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this article, we describe an approach for solving partial differential equations with general boundary conditions imposed on arbitrarily shaped boundaries. A continuous function, the domain parameter, is used to modify the original differential equations such that the equations are solved in the region where a domain parameter takes a specified value while boundary conditions are imposed on the region where the value of the domain parameter varies smoothly across a short distance. The mathematical derivations are straightforward and generically applicable to a wide variety of partial differential equations. To demonstrate the general applicability of the approach, we provide four examples herein: (1) the diffusion equation with both Neumann and Dirichlet boundary conditions; (2) the diffusion equation with both surface diffusion and reaction; (3) the mechanical equilibrium equation; and (4) the equation for phase transformation with the presence of additional boundaries. The solutions for several of these cases are validated against corresponding analytical and semi-analytical solutions. The potential of the approach is demonstrated with five applications: surface-reaction-diffusion kinetics with a complex geometry, Kirkendall-effect-induced deformation, thermal stress in a complex geometry, phase transformations affected by substrate surfaces, and a self-propelled droplet.
description: This document is the revised version of arXiv:0912.1288v1
The rise and fall of a translational compound: “the only begotten” in the English versions of the New Testament
Creators: name: Blumczyński, Piotr
Publisher: name: IATIS and the Centre for Translation and Textual Studies (CTTS) at Dublin City University
Year: 2006
Subjects: monogenes
only begotten
unigenitus
Vulgate eng

description: New Voices in Translation Studies, 2, 1, 1-8
Getting running with ARK persistable identifiers
Creators: name: Kunze, John
name: Winston, Donny
Publisher: name: Zenodo
Year: 2023

description: Any DDI dataset, ancillary, or supporting file is a candidate for systematic, persistent identification with ARK identifiers. End users, especially researchers, rely on ARKs for long term access to the global scientific and cultural record. Since 2001 some 8.2 billion ARKs have been created by over 1100 organizations — libraries, data centers, archives, museums, publishers, government agencies, and vendors. They are open, mainstream, non-paywalled, decentralized persistent identifiers that you can start creating in under 48 hours. They identify anything digital, physical, or abstract, and from any domain or discipline. This has been true since 2001; in contrast, the well-known service for dataset DOIs, DataCite, only incorporated in 2009. ARKs are similar to DOIs, URNs, and Handles. All of them:- were introduced over 20 years ago,- exist in large numbers (8.2 billion ARKs, 240 million DOIs, etc.),- start with a string to identify the name assigning authority,- require the active updating of URL redirects, and- support research and scholarship, appearing in the Data Citation Index, Wikipedia, ORCiD.org profiles, etc.In contrast, ARKs are cheaper, more flexible, and less centralized, letting you:- create unlimited identifiers without paying for the right to do so,- add any kind of metadata, including no metadata,- append extensions and query strings during resolution,- link directly to an article, image, or spreadsheet that is immediately usable by people and software without making them first stop at a landing page, and- make millions of ARKs resolvable by managing just one ARK, via a mechanism called suffix passthrough.As a low cost alternative to the DOI (for example), ARK adoption is rapidly accelerating in the global South and in any organization that cannot pay for large numbers. ARK organizations include 10 national libraries, 184 archives, 75 journals, and 145 universities.We will cover:- Why ARKs – non-paywalled, decentralized, flexible- Use cases – Smithsonian, French National Library, Internet Archive- Metadata for early and ongoing object development- How to get started – fill out one form- Minting and assigning ARK identifiers- Resolvers, resolution, redirection- Persistence considerations
A CCD Search for Variable Stars of Spectral Type B in the Northern Hemisphere Open Clusters. VIII. NGC 6834
Creators: name: Jerzykiewicz, M.
name: Kopacki, G.
name: Pigulski, A.
name: Kołaczkowski, Z.
name: Kim, S. -L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present results of a CCD variability search in the field of the young open cluster NGC 6834. We discover 15 stars to be variable in light. The brightest, a multiperiodic Gamma Doradus-type variable is a foreground star. The eight fainter ones, including a Gamma Cassiopeiae-type variable, two Lambda Eridani-type variables, an ellipsoidal variable, an EB-type eclipsing binary, and three variable stars we could not classify, all have E(B-V) within proper range, thus fulfilling the necessary condition to be members. One of the three unclassified variables may be a non-member on account of its large angular distance from the center of the cluster. Four of the six faintest variable stars, which include two eclipsing binaries and two very red stars showing year-to-year variations, are certain non-members. One of the remaining two faintest variable stars, an EA-type eclipsing binary may be a member, while the faintest one, a W Ursae Majoris-type variable, is probably a non-member. For 6937 stars we provide the V magnitudes and (V-I)_C color indices on the standard system. Because of nonuniform reddening over the cluster's face, a direct comparison of these data with theoretical isochrones is not possible. We therefore obtain E(B-V) from available UBV photometry, determine the lower and upper bound of E(B-V) for NGC 6834, and then fit properly reddened Padova isochrones to the data. Assuming HDE 332843, an early-F supergiant, to be a member we get log (age/yr) = 7.70, V_0 - M_V = 12.10 mag. For 103 brightest stars in our field we obtained the alpha index, a measure of the equivalent widths of the Halpha line. We find Halpha emission in five stars, including the Gamma Cas-type variable and the two Lambda Eri-type variables.
description: 24 pages, 11 figures
Supplement to "Full-sky Cosmic Microwave Background Foreground Cleaning Using Machine Learning"
Creators: name: Petroff, Matthew A.
Publisher: name: Zenodo
Year: 2020

description: This work serves as a supplement to the paper titled Full-sky Cosmic Microwave Background Foreground Cleaning Using Machine Learning. The main archive contains the code used to produce the training simulations, patches for the Planck Sky Model code, a few simulation examples, the source code for the neural network model, the trained model weights, and the notebooks and data files used to analyze the results and produce the plots in the paper. A secondary, abridged archive is also provided, which contains only the results of using the machine learning model to clean Planck 2018 frequency maps. These files are also contained in the main archive. This second revision fixes an issue with the handling of the CIB monopole for the Planck 2018 frequency maps.
The Use of Verbs in Research Articles: Corpus Analysis for Scientific Writing and Translation
Creators: name: Reimerink, Arianne
Publisher: name: IATIS and the Centre for Translation and Textual Studies (CTTS) at Dublin City University
Year: 2006
Subjects: academic writing
corpus linguistics
IMRAD
lexical domains
medical research articles
eng

description: New Voices in Translation Studies, 2, 1, 9-27
Developing biomaterials with non-linear elasticity using core/shell electrospinning technology
Creators: name: Xu, Bing
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: One of the major challenges in the field of biomaterials engineering is the replication of the non-linear elasticity of soft tissues. In this PhD thesis project, non-linearly elastic biomaterials have been successfully fabricated from a chemically cross-linked elastomeric poly (glycerol sebacate) (PGS) and thermoplastic poly (L-lactic acid) (PLLA) or polyvinyl alcohol (PVA). PGS/PLLA fibre mats were fabricated using the core/shell electrospinning technique and the spun fibrous materials, containing a PGS core and PLLA shell, demonstrated J-shaped stress-strain curves, having ultimate tensile strength, rupture elongation, and stiffness constants comparable to muscle tissue properties. In vitro evaluations have shown that the PGS/PLLA fibrous biomaterials possess excellent biocompatibility, and are capable of supporting human stem-cell-derived cardiomyocytes over several weeks in culture or supports, and they can foster the growth of enteric neural crest (ENC) progenitor cells. Controlled enzymatic degradation is a major requirement of polyester implants in vivo and excessively rapid degradation speed is the major drawback for PGS. In vitro degradation of PGS/PLLA core/shell fibre mats were explored in tissue culture medium with and without enzyme, and were compared with cast PGS sheets. Both pH change and weight loss results have proved that the degradation rates of these core/shell fibre mats are much slower than PGS sheet in media with or without enzyme. It has been previously shown that aligned fibre mats can guide neurite and stem cell growth along the aligned fibres. Therefore in this project, aligned PGS/PLLA core/shell fibre mats collected on a rotating drum under different rotational speeds were fabricated, and their alignment and mechanical properties measured. The stiffness of fibre mats dramatically increased with higher rotation speed, while UTS elongation and resilience initially increased with the degree of alignment, but then decreased. PLLA cannot be easily removed by solvent dissolution and so pure PGS fibre mats could not be obtained from PGS/PLLA core/shell fibre mats. However more pure PGS porous mats were fabricated by dissolution of the water soluble poly (vinyl alcohol) shell surrounding the PGS core in core-shell electrospun fibres, and these mats were studied. For these experiments, a different PGS was synthesized with a stoichiometric glycerol:sebacic acid ratio of 2:3 (rather than the more common 1:1 ratio) and it was found that this overcame the rapid degradation kinetics normally found with 1:1 PGS. Tensile tests showed these porous PGS2:3 mats had superior mechanical properties than cast PGS2:3 polymers and they demonstrated J-shaped stress-strain curves when tested in the wet state. In vitro evaluations revealed that the spun porous PGS2:3 have excellent biocompatibility.
Development of Mg-Al-Zn alloys with enhanced toughness and durability
Creators: name: Gusieva, Kateryna
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: In the present era of light weighting, magnesium (Mg) alloys are gaining popularity in many industrial applications, owing to a combination of low density and high specific strength. Whilst the low density of magnesium components is a significant advantage, the hexagonal crystal structure of Mg affects fundamental properties such as ductility and toughness. Adding controlled amounts of alloying additions such as Al, Zn, Mn, Y, Zr, Gd, Li, RE (rare earth blends, including one or more of Ce, Nd, La), produces Mg alloys with good specific strength, and, with further thermo-mechanical processing, it is possible to obtain even higher specific strength (comparable to that of other metal systems, such as steels). However, microstructural heterogeneities, brought about by alloying, often result in poor corrosion resistance. As such, to exploit the promise of Mg alloys, a balance of properties must be achieved. In spite of much recent research in this field, corrosion and mechanical properties are rarely studied together. Such a task is not trivial, however it is clear that to broaden the range of potential applications of Mg alloys, significant alloy engineering and design is still required – particularly to provide an optimised balance of mechanical and corrosion performance. The present work focuses on the optimisation, and related science, required to extend the property space of Mg alloy AZ31 using previously unexplored microalloying additions. In addition an in-depth investigation of the galvanic corrosion inherent to Mg alloys is carried out, using samples specially designed to provide macroscopic examples of galvanic corrosion. The findings reveal a new insight on the phenomenon of microgalvanic corrosion of Mg, that has not been previously reported – whereby the damage evolution is principally dictated by local pH.
Toric Symmetry of CP^3
Creators: name: Karp, Dagan
name: Ranganathan, Dhruv
name: Riggins, Paul
name: Whitcher, Ursula
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We exhaustively analyze the toric symmetries of CP^3 and its toric blowups. Our motivation is to study toric symmetry as a computational technique in Gromov-Witten theory and Donaldson-Thomas theory. We identify all nontrivial toric symmetries. The induced nontrivial isomorphisms lift and provide new symmetries at the level of Gromov-Witten Theory and Donaldson-Thomas Theory. The polytopes of the toric varieties in question include the permutohedron, the cyclohedron, the associahedron, and in fact all graph associahedra, among others.
description: 20 pages, many figures. Comments welcome!
Dis/Similarities between Patient Information Leaflets in Britain and Italy: Implications for the Translator.
Creators: name: Cacchiani, Silvia
Publisher: name: IATIS and the Centre for Translation and Textual Studies (CTTS) at Dublin City University
Year: 2006
Subjects: adaptation
contrastive studies
Languages for Special Purposes
patient information leaflets
speech act theory
eng

description: New Voices in Translation Studies, 2, 1, 28-43