cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A major asymmetric ice trap in a planet-forming disk: I. Formaldehyde and methanol
Creators: name: van der Marel, N.
name: Booth, A. S.
name: Leemker, M.
name: van Dishoeck, E. F.
name: Ohashi, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The chemistry of planet-forming disks sets the exoplanet atmosphere composition and the prebiotic molecular content. Dust traps are of particular importance as pebble growth and transport are crucial for setting the chemistry where giant planets are forming. The asymmetric Oph~IRS~48 dust trap located at 60 au radius provides a unique laboratory for studying chemistry in pebble-concentrated environments in warm Herbig disks with low gas-to-dust ratios down to 0.01. We use deep ALMA Band~7 line observations to search the IRS~48 disk for H$_2$CO and CH$_3$OH line emission, the first steps of complex organic chemistry. We report the detection of 7 H$_2$CO and 6 CH$_3$OH lines with energy levels between 17 and 260 K. The line emission shows a crescent morphology, similar to the dust continuum, suggesting that the icy pebbles play an important role in the delivery of these molecules. Rotational diagrams and line ratios indicate that both molecules originate from warm molecular regions in the disk with temperatures $>$100 K and column densities $\sim10^{14}$ cm$^{-2}$ or a fractional abundance of $\sim10^{-8}$ and with H$_2$CO/CH$_3$OH$\sim$0.2, indicative of ice chemistry. Based on arguments from a physical-chemical model with low gas-to-dust ratios, we propose a scenario where the dust trap provides a huge icy grain reservoir in the disk midplane or an `ice trap', which can result in high gas-phase abundances of warm COMs through efficient vertical mixing. This is the first time that complex organic molecules have been clearly linked to the presence of a dust trap. These results demonstrate the importance of including dust evolution and vertical transport in chemical disk models, as icy dust concentrations provide important reservoirs for complex organic chemistry in disks.
description: Accepted by A&A Letters. 8 pages, 4 figures, plus appendix (8 pages, 8 figures)
On a Conjecture of EM Stein on the Hilbert Transform on Vector Fields
Creators: name: Lacey, Michael
name: Li, Xiaochun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B

description: Let $ v$ be a smooth vector field on the plane, that is a map from the plane to the unit circle. We study sufficient conditions for the boundedness of the Hilbert transform \operatorname H_{v, ε}f(x) := \text{p.v.}\int_{-ε}^ εf(x-yv(x)) \frac{dy}y where $ ε$ is a suitably chosen parameter, determined by the smoothness properties of the vector field. It is a conjecture, due to E.\thinspace M.\thinspace Stein, that if $ v$ is Lipschitz, there is a positive $ ε$ for which the transform above is bounded on $ L ^{2}$. Our principal result gives a sufficient condition in terms of the boundedness of a maximal function associated to $ v$. This sufficient condition is that this new maximal function be bounded on some $ L ^{p}$, for some $ 1
description: 92 pages, 20+ figures. Final version of the paper. To appear in Memoirs AMS
Effects of polymers on the cavitating flow around a cylinder: A Large-scale molecular dynamics analysis
Creators: name: Asano, Yuta
name: Watanabe, Hiroshi
name: Noguchi, Hiroshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The cavitation flow of linear-polymer solutions around a cylinder is studied by performing a large-scale molecular dynamics simulation. The addition of polymer chains remarkably suppresses the cavitation. The polymers are stretched into a linear shape near the cylinder and entrained in the vortex behind the cylinder. As the polymers stretch, the elongational viscosity increases, which suppresses the vortex formation. Furthermore, the polymers exhibit an entropic elasticity owing to the stretching. This elastic energy increases the local temperature, which inhibits the cavitation inception. These effects of polymers result in the dramatic suppression of cavitation.
description: 10 pages, 8 figures
Additional file 1 of The development of a questionnaire to assess the willingness of Chinese community health workers to implement advance care planning
Creators: name: Miao, Qunfang
name: Xing, Bingyu
name: Li, Jingyi
name: Li, Yanjuan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1.
How to define the boundaries of a convective zone and how extended is overshooting?
Creators: name: Deng, L.
name: Xiong, D. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Under nonlocal convection theory, convection extends without limit therefore no apparent boundary can be defined clearly as in the local theory. From the requirement of a similar structure for both local and non-local models having the same depth of convection zone, and taking into account the driving mechanism of turbulent convection, we argue that a proper definition of the boundary of a convective zone should be the place where the convective energy flux (i.e. the correlation of turbulent velocity and temperature) changes its sign. Therefore, it is convectively unstable region when the flux is positive, and it is convective overshooting zone when the flux becomes negative. The physical picture of the overshooting zone drawn by the usual non-local mixing-length theory is not correct. In fact, convection is already sub-adiabatic ($\nabla
description: 12 pages, 9 figures, submitted to MNRAS
Einführung in die Geschichte der finnischen Arbeiterbewegung
Creators: name: Hentilä, Seppo
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Einführung in die Geschichte der finnischen Arbeiterbewegung" of MTS 12 (1992).
description: Moving the Social, Vol 12 (1992): Forschungen zur Arbeiterschaft und Arbeiterbewegung in Finnland
Deutsche Einflüsse in der norwegischen Arbeiterbewegung
Creators: name: Lorenz, Einhart
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Deutsche Einflüsse in der norwegischen Arbeiterbewegung" of MTS 19 (1997).
description: Moving the Social, Vol 19 (1997): Forschungen zur Arbeiterschaft und Arbeiterbewegung in Norwegen
Die sozialistische Bewegung in den italienischsprachigen Teilen Österreich-Ungarns
Creators: name: Cattaruzza, Marina
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Die sozialistische Bewegung in den italienischsprachigen Teilen Österreich-Ungarns" of MTS 21 (1998).
description: Moving the Social, Vol 21 (1998): Sozialgeschichte und soziale Bewegungen in Italien 1848-1998: Forschungen und Forschungsberichte
Von 1933 bis in die Gegenwart
Creators: name: Rieder, Maximiliane
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Von 1933 bis in die Gegenwart" of MTS 21 (1998).
description: Moving the Social, Vol 21 (1998): Sozialgeschichte und soziale Bewegungen in Italien 1848-1998: Forschungen und Forschungsberichte
Coherent neutrino scattering and the Migdal effect on the quenching factor
Creators: name: Liao, Jiajun
name: Liu, Hongkai
name: Marfatia, Danny
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent measurements of the germanium quenching factor deviate significantly from the predictions of the standard Lindhard model for nuclear recoil energies below a keV. This departure may be explained by the Migdal effect in neutron scattering on germanium. We show that the Migdal effect on the quenching factor can mimic the signal of a light Z' or light scalar mediator in coherent elastic neutrino nucleus scattering experiments with reactor antineutrinos. It is imperative that the quenching factor of nuclei with low recoil energy thresholds be precisely measured close to threshold to avoid such confusion. This will also help in experimental searches of light dark matter.
description: 5 pages, 4 figures, 1 table. Version to appear in PRD
Theorie und Strategie des islamistischen Diskurses - drei Beispiele
Creators: name: Puschnerat, Tânia
Publisher: name: Moving the Social
Year: 2015

description: Based on the hypothesis that islamism/islamic fundamentalism is a modern phenomenon, an ideological result of the failed political, economical and social modernization in many parts of the muslim world, this essay tries to outline some fundamentals of the islamist discourse. Looking at three distinct examples of islamist theory - Sayyid Qutb's "Milestones" (1964), Necmettin Erbakan's "Just Order" (1991) and Ali Bulac's "Globalization, Islam and the Future of the Muslims" (2001) - it shows the similarities between the former Egyptian chief ideologist of the Muslim Brotherhood, the former leader of the turkish islamist Refoh Partisi and former Turkish Prime Minister and the independent Turkish modernist Bulac, one of the most sophisticated islamist thinkers. Islamism as a whole rejects 'the West' as metaphor for enlightenment and secularization, i.e. the sovereignty of mankind and the division of religion and the state/the political system. Regardless the different tactics to create an "islamic order" - the militant/revolutionary or the legalistic way to change the system from within - islamist ideology is generally based on the idea of Islam as a total order, which integrates individual belief as well as political and economical systems.
description: Moving the Social, Vol 31 (2004): Forschungen und Forschungsberichte
Additional file 2 of The development of a questionnaire to assess the willingness of Chinese community health workers to implement advance care planning
Creators: name: Miao, Qunfang
name: Xing, Bingyu
name: Li, Jingyi
name: Li, Yanjuan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 2.
Wide Field Surveys and Astronomical Discovery Space
Creators: name: Lawrence, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I review the status of science with wide field surveys. For many decades surveys have been the backbone of astronomy, and the main engine of discovery, as we have mapped the sky at every possible wavelength. Surveys are an efficient use of resources. They are important as a fundamental resource; to map intrinsically large structures; to gain the necessary statistics to address some problems; and to find very rare objects. I summarise major recent wide field surveys - 2MASS, SDSS, 2dfGRS, and UKIDSS - and look at examples of the exciting science they have produced, covering the structure of the Milky Way, the measurement of cosmological parameters, the creation of a new field studying substellar objects, and the ionisation history of the Universe. I then look briefly at upcoming projects in the optical-IR survey arena - VISTA, PanSTARRS, WISE, and LSST. Finally I ask, now we have opened up essentially all wavelength windows, whether the exploration of survey discovery space is ended. I examine other possible axes of discovery space, and find them mostly to be too expensive to explore or otherwise unfruitful, with two exceptions : the first is the time axis, which we have only just begun to explore properly; and the second is the possibility of neutrino astrophysics.
description: Review for publication in Astronomy and Geophysics, based on talk at UK National Astronomy Meeting, 2006. Fifteen pages, nine figures (figs 4,5,6 have parts a and b)
The braid groups of the projective plane and the Fadell-Neuwirth short exact sequence
Creators: name: Gonçalves, Daciberg Lima
name: Guaschi, John
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F36, 20F05, 55R80

description: We study the pure braid groups $P_n(RP^2)$ of the real projective plane $RP^2$, and in particular the possible splitting of the Fadell-Neuwirth short exact sequence $1 \to P_m(RP^2 {x_1,...,x_n} \to P_{n+m}(RP^2) \stackrel{p_{\ast}}{\to} P_n(RP^2) \to 1$, where $n\geq 2$ and $m\geq 1$, and $p_{\ast}$ is the homomorphism which corresponds geometrically to forgetting the last $m$ strings. This problem is equivalent to that of the existence of a section for the associated fibration $p: F_{n+m}(RP^2) \to F_n(RP^2)$ of configuration spaces. Van Buskirk proved in 1966 that $p$ and $p_{\ast}$ admit a section if $n=2$ and $m=1$. Our main result in this paper is to prove that there is no section if $n\geq 3$. As a corollary, it follows that $n=2$ and $m=1$ are the only values for which a section exists. As part of the proof, we derive a presentation of $P_n(RP^2)$: this appears to be the first time that such a presentation has been given in the literature.
The Cosmic Foreground Explorer (COFE): A balloon-borne microwave polarimeter to characterize polarized foregrounds
Creators: name: Leonardi, Rodrigo
name: Williams, Brian
name: Bersanelli, Marco
name: Ferreira, Ivan
name: Lubin, Philip M.
name: Meinhold, Peter R.
name: O'Neill, Hugh
name: Stebor, Nathan C.
name: Villa, Fabrizio
name: Villela, Thyrso
name: Wuensche, Carlos A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The COsmic Foreground Explorer (COFE) is a balloon-borne microwave polarime- ter designed to measure the low-frequency and low-l characteristics of dominant diffuse polarized foregrounds. Short duration balloon flights from the Northern and Southern Hemispheres will allow the telescope to cover up to 80% of the sky with an expected sensitivity per pixel better than 100 $μK / deg^2$ from 10 GHz to 20 GHz. This is an important effort toward characterizing the polarized foregrounds for future CMB experiments, in particular the ones that aim to detect primordial gravity wave signatures in the CMB polarization angular power spectrum.
description: 15 pages Version 2 - missing pictures now appear at the end of the text
Consent and political obligation : Richard Hooker to John Locke
Creators: name: Kernan, Dean
Publisher: name: University of British Columbia
Year: 2010

description: The problem that this thesis addresses is what was meant by politics based on consent in seventeenth-century England. It proceeds by examining several of the best-known English political writers, beginning with Richard Hooker and ending with John Locke. It attempts to offer an historical account of the meaning of consent, and its relationship to political obligation. The method used is both philosophical and historical. It examines the cogency and coherence of doctrines of consent that were articulated, beginning with Hooker, touches on several theories of consent that arose during the period of the English Civil War, and examines the relative importance of consent theories during the Restoration and Glorious Revolution. It considers consent, or contract theory in light of two models: a 'social contract theory' that argues from a state of nature, and 'constitutional contract theory' that understands consent as consent to law. The nature of political obligation is a function of both varieties of consent theory. The general conclusion is that, despite the arguments of the Levellers for a politics based on 'each man's consent', John Locke does not use this vocabulary of consent. He relies instead on a variant form of English constitutionalism, a variety of consent theory that has affinities with that of Richard Hooker's, that assumes that Parliament consents to law for all. It concludes by arguing that, in spite of recent readings of consent theories that have suggested that political obligation was simply understood as a duty to God, one's consent to particular laws was a necessary component of one's obligation and willingness to obey.
Huge Transverse Magnetization in the Field-Induced Phase of the Antiferromagnetic Molecular Wheel CsFe8
Creators: name: Schnelzer, L.
name: Waldmann, O.
name: Horvatić, M.
name: Ochsenbein, S. T.
name: Krämer, S.
name: Berthier, C.
name: Güdel, H. U.
name: Pilawa, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The 1H-NMR spectrum and nuclear relaxation rate 1/T_1 in the antiferromagnetic wheel CsFe8 were measured to characterize the previously observed magnetic field-induced low-temperature phase around the level crossing at 8 T. The data show that the phase is characterized by a huge staggered transverse polarization of the electronic Fe spins, and the opening of a gap, providing microscopic evidence for the interpretation of the phase as a field-induced magneto-elastic instability.
description: 5 pages, 4 figures, REVTEX4, to appear in PRL
ESL university students' coping strategies : a qualitative study of academic reading
Creators: name: Yuen, Susie
Publisher: name: University of British Columbia
Year: 2010

description: The ability to read and write academic discourse in a second language often determines an ESL student's scholastic progress. Recent related research has focused on the academic reading of ESL university students at the text level, often at the single or multi-paragraph level (Block, 1986; Carrell, 1985, 1987), and has looked at categories that were general across subject areas. This study explores how first year university ESL students cope with the reading demands of two specific credit courses, English Literature and Introductory Psychology, within the context of the course requirements, the instruction, and the nature of the academic discipline itself. The research method focused on ethnographic interviews with ten students from various Asian countries and their Canadian instructors, on classroom observations, and on the researcher's extensive field diary. Analysis of the findings identified three major coping strategies: self-management, background knowledge and experience, and reliance on the instructors in the disciplines. The nature of the genre, the students' interest in the discipline, and their perseverance in reading comprehension appear to influence their choice of strategies in meeting specific academic objectives. These strategies contributed to the background knowledge component of the academic tasks that the students face. Their efforts at academic tasks were guided by the concern to do what was required to complete course assignments. Essentially, course assignments directed the action component or agenda, of the students' academic tasks. Reading-to-learn involved approaching the genre-specific reading tasks at the whole text level within the context of what was required to successfully fulfil the course requirements of the particular genre. The primary reality of the students was to demonstrate an adequate level of academic proficiency. In contrast with previous research, findings indicated the importance of genre-specific reading tasks at the whole-text level rather than generic reading at the paragraph level, and the importance of relating coping strategies to the context of what was required to fulfil course requirements rather than the study of strategies in isolation. Thus, the findings were consistent with a theoretical model (Mohan, 1986) analyzing academic tasks into an action component and a knowledge component.
The Na I D resonance lines in main sequence late-type stars
Creators: name: Díaz, Rodrigo F.
name: Cincunegui, Carolina
name: Mauas, Pablo J. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the sodium D lines (D1: 5895.92 Å; D2: 5889.95 Å) in late-type dwarf stars. The stars have spectral types between F6 and M5.5 (B-V between 0.457 and 1.807) and metallicity between [Fe/H] = -0.82 and 0.6. We obtained medium resolution echelle spectra using the 2.15-m telescope at the argentinian observatory CASLEO. The observations have been performed periodically since 1999. The spectra were calibrated in wavelength and in flux. A definition of the pseudo-continuum level is found for all our observations. We also define a continuum level for calibration purposes. The equivalent width of the D lines is computed in detail for all our spectra and related to the colour index (B-V) of the stars. When possible, we perform a careful comparison with previous studies. Finally, we construct a spectral index (R_D') as the ratio between the flux in the D lines, and the bolometric flux. We find that, once corrected for the photospheric contribution, this index can be used as a chromospheric activity indicator in stars with a high level of activity. Additionally, we find that combining some of our results, we obtain a method to calibrate in flux stars of unknown colour.
description: 12 pages, including 14 figures and 4 tables. Accepted for publication in MNRAS
The low-luminosity tail of the GRB distribution: the case of GRB 980425
Creators: name: Daigne, F.
name: Mochkovitch, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) The association of GRB 980425 with SN 1998bw at z=0.0085 implies the existence of a population of GRBs with an isotropic-equivalent luminosity which is about 10^4 times smaller than in the standard cosmological case. We investigate two scenarios to explain a weak GRB : a normal (intrinsically bright) GRB seen off-axis or an intrinsically weak GRB seen on-axis. For each of these two scenarios, we first derive the conditions to produce a GRB 980425-like event and we then discuss the consequences for the event rate. If we exclude the possibility that GRB 980425 is an occurence of an extremely rare event observed by chance during the first eight years of the 'afterglow era', the first scenario implies that (i) the local rate of standard bright GRBs is much higher than what is usually expected; (ii) the typical opening angle is much narrower than what is derived from observations of a break in the afterglow lightcurve. In addition, we show that the afterglow of GRB 980425 in this scenario should have been very bright and easily detected. For these reasons the second scenario appears more realistic. We show that the parameter space of the internal shock model indeed allows GRB 980425-like events, in cases where the outflow is only mildly-relativistic and mildly-energetic. The rate of such weak events in the Universe has to be much higher than the rate of standard bright GRBs to allow the discovery of GRB 980425 during a short period of a few years. However it is still compatible with the observations as the intrinsic weakness of these GRB 980425-like bursts does not allow detection at cosmological redshift. We finally briefly discuss the consequences of such a high local rate of GRB 980425-like events for the future prospects of detecting non-electromagnetic radiation, especially gravitational waves.
description: 10 pages, 7 figures
title: European Journal of Creative Practices in Cities and Landscapes, N.0 (2018)
title: N.0 (2018)
titleType: AlternativeTitle
Creators: name: European Journal Of Creative Practices In Cities And Landscapes
Publisher: name: European Journal of Creative Practices in Cities and Landscapes
Year: 2018

description: Culture as Primary Political Action in City Governance: Three Key Concepts and Ten Policies to Start With
Creative Practices: Bridging Temporal, Spatial, and Disciplinary Gaps
Showcasing Front-running Creative Practices for Sustainable Cities & Landscapes
Thinking in the Age of Anthropocene: Cultural Heritage, Philosophical Personae, Environment
What is Ecosophy?
Photons as quasi-charged particles
Creators: name: Marzlin, K. -P.
name: Appel, Juergen
name: Lvovsky, A. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Schrodinger motion of a charged quantum particle in an electromagnetic potential can be simulated by the paraxial dynamics of photons propagating through a spatially inhomogeneous medium. The inhomogeneity induces geometric effects that generate an artificial vector potential to which signal photons are coupled. This phenomenon can be implemented with slow light propagating through an a gas of double-Lambda atoms in an electromagnetically-induced transparency setting with spatially varied control fields. It can lead to a reduced dispersion of signal photons and a topological phase shift of Aharonov-Bohm type.
Extension of automorphisms to C*-crossed products with non-trivial centre
Creators: name: Conti, Roberto
name: Vasselli, Ezio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Given a quasi-special endomorphism $ρ$ of a C*-algebra A with nontrivial center, we study an extension problem for automorphisms of A to a minimal cross-product B of A by $ρ$. Exploiting some aspects of the underlying generalized Doplicher-Roberts duality theory based on Pimsner algebras, an obstruction to the existence of such extensions is found and described in terms of sections of a suitable group bundle.
description: 19 pages
title: European Journal of Creative Practices in Cities and Landscapes, Vol 1, No 1 (2018): Cosmopolitan Practices
title: Cosmopolitan Practices
titleType: AlternativeTitle
Creators: name: European Journal Of Creative Practices In Cities And Landscapes
Publisher: name: European Journal of Creative Practices in Cities and Landscapes
Year: 2018

description: Building Cosmopolitan Citizenship Through the Mundane: Insights from Walking Conversations in the Public Spaces of Berlin...33-52
Enacting Citizenship in an Urban Borderland: the Case of the Maximilian Park in Brussels...53-72
The Online Presence of Golden Dawn and the Athenian Subjectivities It Brings Forward...73-92
Cities Interrupted: Visual Culture and Urban Space...131-134
Bodies, Spaces and Citizenship: the Theoretical Contribution of Frantz Fanon...17-32
Transit...5-16
Cosmopolitan Practices...1-4
Temporary Permanence: the Intermittent City...93-102
Practices of Citizenship and Real Estate Dynamics: Roberto Falanga and Chiara Pussetti in conversation with Vando Borghi and Davide Olori...103-114
The Open Architecture To Come: an Interview with Esra Akcan...115-126
Rethinking the Smart City...127-130
An ultraluminous supersoft source with a 4 hour modulation in NGC 4631
Creators: name: Carpano, S.
name: Pollock, A. M. T.
name: King, A. R.
name: Wilms, J.
name: Ehle, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. Supersoft X-ray sources (SSSs) are characterised by very low temperatures (< 100 eV). Classical SSSs have bolometric luminosities in the range of 10^36-10^38 erg/s and are modelled with steady nuclear burning of hydrogen on the surfaces of white dwarfs. However, several SSSs have been discovered with much higher luminosities. Their nature is still unclear. Aims. We report the discovery of a 4h modulation for an ultraluminous SSS in the nearby edge-on spiral galaxy NGC 4631, observed with XMM-Newton in 2002 June. Temporal and spectral analysis of the source is performed. Methods. We use a Lomb-Scargle periodogram analysis for the period search and evaluate the confidence level using Monte-Carlo simulations. We measure the source temperature, flux and luminosity through spectral fitting. Results. A modulation of 4.2+-0.4 h (3 sigma error) was found for the SSS with a confidence level >99%. Besides dips observed in the light curve, the flux decreased by a factor of 3 within ~10h. The spectrum can be described with an absorbed blackbody model with kT~67eV. The absorbed luminosity in the 0.2-2 kev energy band was 2.7x10^38 erg/sec while the bolometric luminosity was a hundred time higher (3.2x10^40 erg/s), making the source one of the most luminous of its class, assuming the best fit model is correct. Conclusions. This source is another very luminous SSS for which the standard white dwarf interpretation cannot be applied, unless a strong beaming factor is considered. A stellar-mass black hole accreting at a super Eddington rate is a more likely interpretation, where the excess of accreted matter is ejected through a strong optically-thick outflow. The 4 h modulation could either be an eclipse from the companion star or the consequence of a warped accretion disk.
description: 4 pages, 4 figures, accepted as a Letter in Astronomy & Astrophysics
The COS-legacy survey of C IV absorbers: properties and origins of the intervening systems
Creators: name: Manuwal, Aditya
name: Narayanan, Anand
name: Udhwani, Purvi
name: Srianand, Raghunathan
name: Savage, Blair D.
name: Charlton, Jane C.
name: Misawa, Toru
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present here results from a survey of intervening C IV absorbers at $z < 0.16$ conducted using 223 sightlines from the Hubble Spectroscopic Legacy Archive. Most systems (83%) out of the total sample of 69 have simple kinematics with 1 or 2 C IV components. In the 22 C IV systems with well constrained H I column densities, the temperatures from the $b$-values imply predominantly photoionized plasma ($T\leq 10^5$ K) and non-thermal dynamics. These systems also have solar or higher metallicities. We obtain a C IV line density of $d\mathcal{N}/dX = 5.1\pm 1.0$ for $\log [N(C~IV)~(cm^{-2})]\geq12.9$, and $Ω_{C~IV}=(8.01\pm 1.62) \times 10^{-8}$ for $12.9 \leq \log [N(C~IV)~(cm^{-2})] \leq 15.0$. The C IV bearing diffuse gas in the $z < 0.16$ Universe has a metallicity of $(2.07~{\pm}~0.43)~\times~10^{-3}$ Z$_{\odot}$, an order of magnitude more than the metal abundances in the IGM at high redshifts ($z \gtrsim 5$), and consistent with the slow build-up of metals in the diffuse circum/intergalactic space with cosmic time. For $z<0.015$ (complete above $L>0.01L^\star$), the Sloan Digital Sky Survey provides a tentative evidence of declining covering fraction for strong C IV ($N>10^{13.5}~cm^{-2}$) with $ρ$ (impact parameter) and $ρ/R_\mathrm{vir}$. However, the increase at high separations suggests that strong systems are not necessarily coincident with such galaxies. We also find that strong C IV absorption at $z<0.051$ is not coincident with galaxy over-dense regions complete for $L>0.13L^\star$
description: Published in MNRAS. Modified to match the text in the published version. 20 pages, 16 figures, 4 tables. The system plots, measurement tables, and discussions on origins of some individual systems, are available online at MNRAS. The link to the supplementary information is present in this arxiv version
Thesen zum Antisemitismus im Kaiserreich
Creators: name: Brakelmann, Günter
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Thesen zum Antisemitismus im Kaiserreich" of MTS 31 (2004).
description: Moving the Social, Vol 31 (2004): Forschungen und Forschungsberichte
3-D Simulations of Ergospheric Disk Driven Poynting Jets
Creators: name: Punsly, Brian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This Letter reports on 3-dimensional simulations of Kerr black hole magnetospheres that obey the general relativistic equations of perfect magnetohydrodynamics (MHD). In particular, we study powerful Poynting flux dominated jets that are driven from dense gas in the equatorial plane in the ergosphere. The physics of which has been previously studied in the simplified limit of an ergopsheric disk. For high spin black holes, $a/M > 0.95$, the ergospheric disk is prominent in the 3-D simulations and is responsible for greatly enhanced Poynting flux emission. Any large scale poloidal magnetic flux that is trapped in the equatorial region leads to an enormous release of electromagnetic energy that dwarfs the jet energy produced by magnetic flux threading the event horizon. The implication is that magnetic flux threading the equatorial plane of the ergosphere is a likely prerequisite for the central engine of powerful FRII quasars.
description: To appear in ApJ Letters. A version with high res images is at http://85.20.11.14/hosting/punsly/APJLetter4.2.07/
An S_3-symmetric Littlewood-Richardson rule
Creators: name: Thomas, Hugh
name: Yong, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: The classical Littlewood-Richardson coefficients C(lambda,mu,nu) carry a natural $S_3$ symmetry via permutation of the indices. Our "carton rule" for computing these numbers transparently and uniformly explains these six symmetries; previously formulated Littlewood-Richardson rules manifest at most three of the six.
description: 9 pages
ST-HOI: A Spatial-Temporal Baseline for Human-Object Interaction Detection in Videos
Creators: name: Chiou, Meng-Jiun
name: Liao, Chun-Yu
name: Wang, Li-Wei
name: Zimmermann, Roger
name: Feng, Jiashi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Detecting human-object interactions (HOI) is an important step toward a comprehensive visual understanding of machines. While detecting non-temporal HOIs (e.g., sitting on a chair) from static images is feasible, it is unlikely even for humans to guess temporal-related HOIs (e.g., opening/closing a door) from a single video frame, where the neighboring frames play an essential role. However, conventional HOI methods operating on only static images have been used to predict temporal-related interactions, which is essentially guessing without temporal contexts and may lead to sub-optimal performance. In this paper, we bridge this gap by detecting video-based HOIs with explicit temporal information. We first show that a naive temporal-aware variant of a common action detection baseline does not work on video-based HOIs due to a feature-inconsistency issue. We then propose a simple yet effective architecture named Spatial-Temporal HOI Detection (ST-HOI) utilizing temporal information such as human and object trajectories, correctly-localized visual features, and spatial-temporal masking pose features. We construct a new video HOI benchmark dubbed VidHOI where our proposed approach serves as a solid baseline.
description: Accepted at ACM ICMR'21 Workshop on Intelligent Cross-Data Analysis and Retrieval. The dataset and source code are available at https://github.com/coldmanck/VidHOI
Die Proteste gegen Atomwaffen in der Bundesrepublik und Großbritannien, 1957-1964 - ein Vergleich zweier sozialer Bewegungen
Creators: name: Nehring, Holger
Publisher: name: Moving the Social
Year: 2015

description: This article seeks to illuminate the connection between processes of social change and political protests by examining the British and West German protests against nuclear weapons in the late 1950s and early 1960s, the most important movements of their kind at the time. By using an approach which combines an awareness of social structures with a sensitivity to the
use of language, this article claims that protests and social change are not as clearly related as recent historical and sociological research has argued. While it does not dispute the 'modern' character of the movements, the article highlights the importance of political and social traditions for the formation and maintenance of the movements. This is shown with respect to the ways in which the movements were organised, the social structure of the movements' supporters, their relationship with the respective social-democratic party, and the forms of protest. These findings have implications for the debate on social change during the 1960s. They show, firstly, that these changes started earlier than previously assumed, often hidden by the traditional forms they took. Second, it suggests that the role social and political conditions played in the protests of the 1960s needs to be examined in more detail.
description: Moving the Social, Vol 31 (2004): Forschungen und Forschungsberichte
Die „Stilllegung“ von Bergwerken: Wissenschaftliche Begleitung der Bergwerksschließungen im Ruhrgebiet 2010 bis 2012
Creators: name: Förster, Marco
name: Oerters, Kathrin
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Die 'Stilllegung' von Bergwerken: Wissenschaftliche Begleitung der Bergwerksschließungen im Ruhrgebiet 2010 bis 2012" of MTS 44 (2010).
description: Moving the Social, Vol 44 (2010): Forschungen und Forschungsberichte
ผลกระทบของการปฏิบัติงานบัญชีตามเกณฑ์คงค้างที่มีต่อคุณภาพรายงาน  ทางการเงินของสถาบันอุดมศึกษาในประเทศไทย
Creators: name: เมชยา  ศรีหนองกุง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การปฏิบัติงานบัญชี, การบัญชีตามเกณฑ์คงค้าง, คุณภาพรายงานทางการเงิน

description: 4, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Grouping eucalyptus species in kraft pulp process for cost reduction
Creators: name: Apiwan Pichayadecha
name: Angsumalin Senjuntichai
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2014
Subjects: Eucalyptus,Kappa number,EA in white liquor and kraft pulp and paper

description: 4, 41, KKU Engineering Journal
Scale models of gravel bed rivers
Creators: name: Parent, Alain Paul
Publisher: name: University of British Columbia
Year: 2010

description: The combined studies of flow processes in a full size gravel-bed river and its associated small-scale model have demonstrated the applicability of the similitude concepts as well as the potential of scale models for quantitative research in fluvial geomor phology. This scaling investigation considered the comparison of velocity profiles, shear stress measurements, flow structure and surface bed material samples. An extension of the strict comparison on a detailed level of field and laboratory processes in a specific case consisted in the proposition of a "generic model" framework according to which laboratory systems are viewed as part of the same family as field ones if some crucial conditions are satisfied. The pool-riffle sequence, used as a vehicle for the demonstration herein, is presented as a poorly Known but ubiquitous river phenomenon which would benefit from such research methodology. The laboratory study performed herein revealed the need for an appraisal of the variability of shear stress estimates in intermediate relative roughness flows such as field size gravel-bed rivers. Knowledge of elements of the history of the prototype (field) river was also demonstrated to be important for the appraisal of model performance.
A COVID-19 hatása a húsipari ellátási lánc egy szűk szegmensében
Creators: name: Somodi, Flóra
name: Deli, Ádám László
name: Hegedűs, Szilárd
name: Kozma, Tímea
Publisher: name: BI-KA LOGISZTIKA Kft.
Year: 2020

description: Logisztikai trendek és legjobb gyakorlatok (Nyomtatott ISSN: 2416-0555, Online ISSN: 2560-0362), 2020. december, VI. évfolyam, 2. szám
WISDOM Project -- VII. Molecular gas measurement of the supermassive black hole mass in NGC 7052
Creators: name: Smith, Mark D.
name: Bureau, Martin
name: Davis, Timothy A.
name: Cappellari, Michele
name: Liu, Lijie
name: Onishi, Kyoko
name: Iguchi, Satoru
name: North, Eve V.
name: Sarzi, Marc
name: Williams, Thomas G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Supermassive black hole (SMBH) masses can be measured by resolving the dynamical influences of the SMBHs on spatially-resolved tracers of the central potentials. Modern long-baseline interferometers have enabled the use of molecular gas as such a tracer. We present here Atacama Large Millimeter/submillimeter Array observations of the elliptical galaxy NGC 7052 at 0.11 arcseconds (37 pc) resolution in the 12CO(2-1) line and 1.3mm continuum emission. This resolution is sufficient to resolve the region in which the potential is dominated by the SMBH. We forward model these observations, using a multi-Gaussian expansion of a Hubble Space Telescope F814W image and spatially-constant mass-to-light ratio to model the stellar mass distribution. We infer a SMBH mass of $2.5\pm0.3\times10^9\,\mathrm{M_\odot}$ and a stellar I-band mass-to-light ratio of $4.6\pm 0.2\,\mathrm{M_\odot/L_{\odot,I}}$ ($3σ$ confidence intervals). This SMBH mass is significantly larger than that derived using ionised gas kinematics, which however appear significantly more kinematically disturbed than the molecular gas. We also show that a central molecular gas deficit is likely to be the result of tidal disruption of molecular gas clouds due to the strong gradient in the central gravitational potential.
description: 14 pages, 8 figures, accepted for publication in MNRAS
Control of color in dyed paper
Creators: name: Bond, Tracy
Publisher: name: University of British Columbia
Year: 2010

description: This paper will examine and evaluate via computer simulations different methods, both adaptive and non-adaptive, for the feedback control of the color of dyed paper. The objectives are to maintain the paper color at a desired setpoint despite disturbances such as addition of recycled dyed paper (i.e. broke), and to perform color changes as smoothly as possible. The dynamics of a three dye system are multivariable and nonlinear with a significant transport time delay: thus the incentive for adaptive control. Several predictor-based and Dahlin controllers with gain scheduling are designed, tested in simulation, and compared. Adaptive versions using parameters identified with Recursive Least Squares (RLS) are also tested. For practical applications, the non-adaptive Dahlin algorithm with gain scheduling is shown to offer the best performance, together with relative ease of use.
IMPACT OF E-GOVERNANCE ON PUBLIC SECTOR FINANCIAL MANAGEMENT AND ACCOUNTABILITY IN EDO STATE
Creators: name: Oseghale, Irete
name: Enyinna, Okpara
name: Eke, Robert Ike
Publisher: name: TOP Journal
Year: 2024
Subjects: E-governance, Oracle Financials, E-Memo manager, Financial Management, Accountability.

description: The study examined the impact of e-Governance on public sector financial management and accountability in Edo State. The study adopted the survey design using three hundred and fifty-six copies of the questionnaire were administered to staff in the office of the Accountant-General, ICTA and internal revenue service in Edo State. e- Governance tool employed such as Oracle Financials and e-memo manager was used to proxy e-governance in Edo state civil and public service. Descriptive and inferential statistics were used to summarize and draw inference on the population. The Pearson Chi-square statistics was used to test the hypotheses of the study. The result of the inferential statistics revealed that Oracle Financials and e-memo manager have positive and significant impact on public sector financial management and accountability in Edo State. The study further recommended new technologies such as oracle financials and e-memo manager which is good in financial management should be adopted in Government MDA to improve their financial management system
Bernstein Problem of Affine Maximal Type Hypersurfaces on Dimension N>=3
Creators: name: Du, Shi-Zhong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Bernstein problem for affine maximal type equation has been a core problem in affine geometry. A conjecture proposed firstly by Chern for entire graph and then extended by Trudinger-Wang to its fully generality asserts that any Euclidean complete, affine maximal type, locally uniofrmly convex C^4-hypersurface in R^{N+1} must be an elliptic paraboloid. At the same time, this conjecture was solved completely by Trudinger-Wang for dimension N=2 and θ=3/4, and later extended by Jia-Li to N=2, θ\in(3/4,1] (see also [Zhou]). On the past twenty years, much efforts were done toward higher dimensional issues but not really successful yet, even for the case of dimension N=3. In this paper, we will construct non-quadratic affine maximal type hypersurfaces which are Euclidean complete for N>=3, θ\in(1/2,(N-1)/N).
description: Corrigendum to "Bernstein problem of affine maximal type hypersurfaces on dimension N>= 3", which has been published in Journal of Differential Equations 269 (2020), no. 9, 7429-7469
Magnetic double gradient instability and flapping waves in a current sheet
Creators: name: Erkaev, N. V.
name: Semenov, V. S.
name: Biernat, H. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A new kind of magnetohydrodynamic instability and waves are analyzed for a current sheet in the presence of a small normal magnetic field component varying along the sheet. These waves and instability are related to existence of two gradients of the tangential and normal magnetic field components along the normal and tangential directions with respect to the current sheet. The current sheet can be stable or unstable if the multiplication of two magnetic gradients is positive or negative. In the stable region, the kink-like wave mode is interpreted as so called flapping waves observed in the Earth's magnetotail current sheet. The kink wave group velocity estimated for the Earth's current sheet is of the order of a few tens kilometers per second. This is in good agreement with the observations of the flapping motions of the magnetotail current sheet.
description: 4 pages, 4 figures, submitted to Phys. Rev. Lett
New physics in the angular distribution of $B_c^- \to J/ψ(\to μ^+ μ^-)τ^- (\to π^- ν_τ)\barν_τ$ decay
Creators: name: Hu, Quan-Yi
name: Li, Xin-Qiang
name: Mu, Xiao-Long
name: Yang, Ya-Dong
name: Zheng, Dong-Hui
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In $B_c^- \to J/ψ(\to μ^+ μ^-)τ^-\barν_τ$ decay, the three-momentum $\boldsymbol{p}_{τ^-}$ cannot be determined accurately due to the decay products of $τ^-$ inevitably include an undetected $ν_τ$. As a consequence, the angular distribution of this decay cannot be measured. In this work, we construct a {\it measurable} angular distribution by considering the subsequent decay $τ^- \to π^- ν_τ$. The full cascade decay is $B_c^- \to J/ψ(\to μ^+ μ^-)τ^- (\to π^- ν_τ)\barν_τ$, in which the three-momenta $\boldsymbol{p}_{μ^+}$, $\boldsymbol{p}_{μ^-}$, and $\boldsymbol{p}_{π^-}$ can be measured. The five-fold differential angular distribution containing all Lorentz structures of the new physics (NP) effective operators can be written in terms of twelve angular observables $\mathcal{I}_i (q^2, E_π)$. Integrating over the energy of pion $E_π$, we construct twelve normalized angular observables $\widehat{\mathcal{I}}_i(q^2)$ and two lepton-flavor-universality ratios $R(P_{L,T}^{J/ψ})(q^2)$. Based on the $B_c \to J/ψ$ form factors calculated by the latest lattice QCD and sum rule, we predict the $q^2$ distribution of all $\widehat{\mathcal{I}}_i$ and $R(P_{L,T}^{J/ψ})$ both within the Standard Model and in eight NP benchmark points. We find that the benchmark BP2 (corresponding to the hypothesis of tensor operator) has the greatest effect on all $\widehat{\mathcal{I}}_{i}$ and $R(P_{L,T}^{J/ψ})$, except $\widehat{\mathcal{I}}_{5}$. The ratios $R(P_{L,T}^{J/ψ})$ are more sensitive to the NP with pseudo-scalar operators than the $\widehat{\mathcal{I}}_{i}$. Finally, we discuss the symmetries in the angular observables and present a model-independent method to determine the existence of tensor operators.
description: 29 pages, 3 figures, matches to the version published in JHEP