cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A CHAETETID SPONGE ASSEMBLAGE FROM THE DESMOINESIAN (UPPER MOSCOVIAN) BUCKHORN ASPHALT QUARRY  LAGERSTÄTTE  IN OKLAHOMA, USA
Creators: name: SEUSS, BARBARA
name: SENOWBARI-DARYAN, BABA
name: NÜTZEL, ALEXANDER
name: DITTRICH, SEBASTIAN
name: NEUBAUER, JÜRGEN
Publisher: name: Università degli Studi di Milano
Year: 2014

description: The first detailed study on chaetetids from the Buckhorn Asphalt Quarry Lagerstätte is presented. Among the investigated specimens we found two samples (chaetetid specimens 2 and 6) that are different from all others in the quarry. Thin sections of these display a complex fragmentation of these Buckhorn chaetetids. Additionally, one of these samples contains two chaetetid morphotypes growing side by side, thus, in the same paleoenvironment. These specimens differ in their mode of growth (laminar and domical), which suggests that chaetetid growth was most likely influenced by genetic factors rather than by the paleoenvironment. We observed a feature, not hitherto reported as far as we are aware, on the surface of chaetetids; namely a regular clustering of seven tubules surrounding a central tubule. This feature could have had an exhalant function. Mineralogical analyses of the skeleton indicate primary high magnesian-calcite mineralogy, which is in accordance with reports in the literature. Cements precipitated during diagenesis are either calcite or dolomite and, where associated with microbial mats, they may contain a distinct amount of manganese. The comparison of the chaetetid skeletons from the Buckhorn Asphalt Quarry leads to the impression, that they represent various morphotypes or even species. Because of the lack of unique features, we have refrained however, from describing new species.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 120, No 1
Energy distribution of the Einstein-Klein-Gordon system for a static spherically symmetric spacetime in (2+1)-dimensions
Creators: name: Radinschi, I.
name: Grammenos, Th.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use Moeller's energy-momentum complex in order to explicitly compute the energy and momentum density distributions for an exact solution of Einstein's field equations with a negative cosmological constant minimally coupled to a static massless scalar field in a static, spherically symmetric background in (2+1)-dimensions.
description: 9 pages, 1 figure
A Possible $γ$-ray Quasi-periodic Oscillation of $\sim$ 314 days in the Blazar OJ 287
Creators: name: Kushwaha, Pankaj
name: Sarkar, Arkadipta
name: Gupta, Alok C.
name: Tripathi, Ashutosh
name: A
name: Wiita, Paul J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the detection of a probable $γ$-ray quasi-periodic oscillation (QPO) of around 314 days in the monthly binned 0.1 -- 300 GeV $γ$-ray {\it Fermi}-LAT light curve of the well known BL Lac blazar OJ 287. To identify and quantify the QPO nature of the $γ$-ray light curve of OJ 287, we used the Lomb-Scargle periodogram (LSP), REDFIT, and weighted wavelet z-transform (WWZ) analyses. We briefly discuss possible emission models for radio-loud active galactic nuclei (AGN) that can explain a $γ$-ray QPO of such a period in a blazar. Reports of changes in the position of quasi-stationary radio knots over a yearly timescale as well as a strong correlation between gamma-ray and mm-radio emission in previous studies indicate that the signal is probably associated with these knots.
description: 6 pages, 4 figures, in press (MNRAS)
title: Les métiers du grand âge, métiers à risque ? (LIEPP Policy Brief, n°56)
Creators: name: Rapp, Thomas
name: Ronchetti, Jérôme
name: SICSIC, Jonathan
Publisher: name: Sciences Po - LIEPP
Year: 2021
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Les métiers du grand âge sont au cœur des politiques du bien-vieillir des pays Européens. Les travailleurs du secteur apportent des soins en établissement et au domicile des personnes. Ces métiers sont pénibles et ont souvent un impact négatif sur la santé (fonctionnelle et mentale) des travailleurs. Si cet effet délétère des métiers du grand âge est souvent cité comme un frein à la rétention des travailleurs dans le secteur, il est encore mal documenté. Nous montrons à partir de données allemandes qu’il est comparable à 9 mois de vieillissement pour les travailleurs qui rejoignent le secteur. Dans le prolongement des travaux de l’OCDE, nous recommandons la mise en œuvre des politiques de bien-être au travail dans le secteur.
description: Long-term care (LTC) jobs are key to promote health aging policies. LTC workers usually are nurses and personal care workers providing care at home or in residencies. LTC workers often declare facing greater mental and physical health issues compared to other workers. Using German panel data, we estimate the impact of LTC jobs on health. Our results suggest that LTC workers tend to report a lower health compared to other workers. Following prior OECD work, we recommend to improve the working conditions in the sector.
Exchange Interaction and $T_c$ in Alkaline-earth-metal-oxide-based DMS without Magnetic Impurities: First Principle Pseudo-SIC and Monte Carlo Calculation
Creators: name: Dinh, Van An
name: Toyoda, Masayuki
name: Sato, Kazunori
name: Katayama-Yoshida, Hiroshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The prospects of half-metallic ferromagnetism being induced by the incorporation of C atoms into alkaline-earth-metal-oxides are investigated by the first principle calculation. The origin of the ferromagnetism is discussed through the calculation of the electronic structure and exchange coupling constant by using the pseudo-potential-like self-interaction-corrected local spin density method. The Curie temperature ($T_c$) is also predicted by employing the Monte Carlo simulation. It is shown that by taking the electron self-interaction into account, the half-metallic ferromagnetism induced by C in the host materials is more stabilized in comparison with the standard LDA case, and the C's $2p$ electron states in the bandgap become more localized resulting in the predominance of the short-ranged exchange interaction. While the ferromagnetism in MgO$_{1-x}$C$_x$ is stabilized due to the exchange interaction of the $1st$-nearest neighbor pairs and might be suppressed by the anti-ferromagnetic super-exchange interaction at higher $x$, the ferromagnetism in CaO$_{1-x}$C$_x$, SrO$_{1-x}$C$_x$, and BaO$_{1-x}$C$_x$ is stabilized by both the $1st$- and $2nd$-nearest neighbor pairs, and $T_c$ monotonously increases with the C concentration.
description: 5 pages, 5 figures
FAUNAL CHANGE NEAR THE END-PERMIAN EXTINCTION: THE BRACHIOPODS OF THE ALI BASHI MOUNTAINS, NW IRAN
Creators: name: GHADERI, ABBAS
name: GARBELLI, CLAUDIO
name: ANGIOLINI, LUCIA
name: REZA ASHOURI, ALI
name: KORN, DIETER
name: RETTORI, ROBERTO
name: HOSSEIN MAHMOUDI GHARAIE, MOHAMMAD
Publisher: name: Università degli Studi di Milano
Year: 2014

description: The Julfa Formation in the Ali Bashi Mountains, northwest Iran, is very rich in brachiopods, particularly in its lower part, which has been dated by fusulinids and conodonts as Wuchiapingian in age. The brachiopod fauna described herein has been collected along the Main Valley section of the Ali Bashi Mountains, several hundred metres away from the historical sections described in the 1960’s and 1970’s. It comprises 39 species of the orders Productida, Orthotetida, Orthida, Rhynchonellida, Athyridida, Spiriferida, and Terebratulida, most of which are known in the coeval successions of Transcaucasia, Alborz Mountains in north Iran and in South China, confirming the Wuchiapingian age indicated by other proxies. A few of the brachiopod taxa range up into the Changhsingian Paratirolites Limestone. The shale and marly limestone at the base of the formation are dominated by semi-infaunal productids, that are progressively succeeded near the top of the lower part of the formation by a more diverse range of pedicle attached and cemented taxa, suggesting a shallowing upward trend and a shift to higher nutrient-substrates in more turbulent waters. The successive deepening trend recorded in the upper part of the Julfa Formation and in the overlying Ali Bashi Formation is very unfavourable for the brachiopods and only a few species survive, represented by small sized pediculate taxa that thrive on hardgrounds.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 120, No 1
Self-tuning kinetic gravity braiding: Cosmological dynamics, shift symmetry, and the tadpole
Creators: name: Bernardo, Reginald Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the self-tuning subclass of kinetic gravity braiding and obtain robust predictions on self-tuning and dynamics in the tadpole-free shift symmetric sector of the theory. In particular, we show inevitability of cosmic acceleration, prove the dynamical stability of this late-time asymptotic state, and derive ghost and gradient stability constraints on the self-tuning vacuum. We discuss the results concretely in the context of generalized cubic covariant Galileon theory and an exponential kinetic gravity braiding.
description: 32 pages, 11 figures, version accepted in JCAP
title: Iterative methods for symmetric quasi-definite linear systems. Part 1 : theory
Creators: name: Arioli, Mario
name: Orban, D
Publisher: name: Science and Technology Facilities Council
Year: 2013
Subjects: LASQR
Lanczos
Symmetric quasi-definite system
linear least-squares problem
CG
Generalised Golub-Kahan bidiagonalization
CRAIG-MR
MINRES
CRAIG
elliptic singular values
LSMR

description: Symmetric quasi-definite systems may be interpreted as regularized linear least-squares problem in appropriate metrics and arise from applications such as regularized interior-point methods for convex optimization and stabilized control problems. We propose two families of Krylov methods well suited to the solution of such systems based on a preconditioned variant of the Golub-Kahan bidiagonalization process. The first family contains methods operating of the normal and Schur-complement equations, including generalizations of well-known methods such as Lsqr and Lsmr but also a new method named Craig-mr aiming to minimize the residual of the Schur-complement equations. The second family follows from a related Lanczos process and contains methods operating directly on the augmented system, which generalize the conjugate-gradient and minimum-residual methods. We establish connections between augmented-system and reduced-system methods. In particular, the conjugate-gradient method is well defined despite the indefiniteness of the operator. We provide an explanation for the often-observed staircase behavior of the residual in the minimum-residual method. An additional contribution is to provide explicit stopping criteria for all methods based on estimates of the relative direct error in appropriate norms, as opposed to criteria based on the residual. A lower bound estimate is available at no additional computational cost while an upper bound estimate comes at the cost of a few additional scalar operations per iteration.
Sensitivity and pointing accuracy of the NEMO km$^3$ telescope
Creators: name: Distefano, C.
name: Collaboration, the NEMO
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: n this paper we present the results of Monte Carlo simulation studies on the capability of the proposed NEMO km3 telescope to detect high energy neutrinos. We calculated the detector sensitivity to muon neutrinos coming from a generic point-like source. We also simulated the lack of atmospheric muons in correspondence to the Moon disk in order to determine the detector angular resolution and to check the absolute pointing capability.
description: To be published on VLVNT2 proceedings (Catania, Italy, November 8-11, 2005)
Herstellungspraktiken offener Bildungsressourcen in digitalen Infrastruktursystemen
Creators: name: Hiebl, Johannes
Publisher: name: Zenodo
Year: 2020
Subjects: Open Educational Resources
Praxis Theorie
Hochschulforschung
Infrastruktur

description: Die Förderung von digitalen Lerninfrastrukturen ist eng mit dem Begriff Open Educational Resources (OER) verbunden. OER bezeichnen durch offene Lizenzen verfügbar gemachte Lehrmaterialien. In ihrer technischen Rahmung machen Infrastruktursysteme OER medial verfügbar. In ihrer politischen Rahmung erzeugen OER einen Diskurs und ein Modell von Open Educational Resources. OER beschreiben den Gebrauch und das Erstellen der offenen Lehr- und Lernmaterialien (Cronin 2017). Auch wenn die genannten Begriffe eng miteinander verwoben scheinen, fehlt es in der aktuellen Forschungsliteratur an einer empirisch unterlegten Begriffsklärung und einem theoretisch fundierten Bezug auf den soziologischen Praxisbegriff, wie unter anderem Bellinger et al. (2018; 2019) feststellen. Um diese Lücke zu schließen möchte der Beitrag ein theoretisches Modell vorschlagen, die sozio-materiellen Praktiken des Herstellens von OER mittels digitaler Infrastruktursysteme, die darin zum Ausdruck kommenden determinierenden politischen und technischen Rahmungen sowie deren Wissenskulturen (Knorr Cetina 1999) zu untersuchen.
Experimental Detection of the Correlation Rényi Entropy in the Central Spin Model
Creators: name: Niknam, Mohamad
name: Santos, Lea F.
name: Cory, David G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose and experimentally measure an entropy that quantifies the volume of correlations among qubits. The experiment is carried out on a nearly isolated quantum system composed of a central spin coupled and initially uncorrelated with 15 other spins. Due to the spin-spin interactions, information flows from the central spin to the surrounding ones forming clusters of multi-spin correlations that grow in time. We design a nuclear magnetic resonance experiment that directly measures the amplitudes of the multi-spin correlations and use them to compute the evolution of what we call correlation Rényi entropy. This entropy keeps growing even after the equilibration of the entanglement entropy. We also analyze how the saturation point and the timescale for the equilibration of the correlation Rényi entropy depend on the system size.
description: 6 pages, 4 figures
title: Prematuridade e o sistema nervoso central
Creators: name: Lamônica, Dionísia Aparecida Cusin
name: Ribeiro, Camila da Costa
Publisher: name: Escola Superior de Educação, Instituto Politécnico de Lisboa
Year: 2021

description: O nascimento prematuro é considerado uma condição de risco para alterações do desenvolvimento. Crianças nascidas prematuras podem ter seu desenvolvimento dentro de critérios normativos. Entretanto, pela condição de risco é fundamental que estas sejam acompanhadas por equipes técnicas quanto aos marcos do desenvolvimento. Este capítulo de revisão de literatura abordará algumas etapas do desenvolvimento do sistema nervoso central, o substrato neuropatológico e os processos desmaturacionais que podem ocorrer. Os estudos aqui reportados apresentam as possibilidades de insultos neurológicos nas crianças nascidas prematuras com consequências diversas para o desempenho motor, linguístico e cognitivo.
Microwave spectroscopy of spin-orbit coupled states: energy detuning versus interdot coupling modulation
Creators: name: Giavaras, G.
name: Tokura, Yasuhiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the AC field induced current peaks of a spin blockaded double quantum dot with spin-orbit interaction. The AC field modulates either the interdot tunnel coupling or the energy detuning, and we choose the AC field frequency range to induce two singlet-triplet transitions giving rise to two current peaks. We show that for a large detuning the two current peaks can be significantly stronger when the AC field modulates the tunnel coupling, thus making the detection of the spin-orbit gap more efficient. We also demonstrate the importance of the time dependence of the spin-orbit interaction.
description: 7 figs
Elicitation of verb paradigms from unpublished Goddard material
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio files VP-201019-07 and VP-201019-08: Verb paradigm elicitation based on unpublished material transcribed by P.E. Goddard (Bancroft Library CU-23.1 12.14.1, file 2184-12 (4).pdf).
Quantum Hall states of atomic Bose gases: density profiles in single-layer and multi-layer geometries
Creators: name: Cooper, N. R.
name: van Lankvelt, F. J. M.
name: Reijnders, J. W.
name: Schoutens, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe the density profiles of confined atomic Bose gases in the high-rotation limit, in single-layer and multi-layer geometries. We show that, in a local density approximation, the density in a single layer shows a landscape of quantized steps due to the formation of incompressible liquids, which are analogous to fractional quantum Hall liquids for a two-dimensional electron gas in a strong magnetic field. In a multi-layered set-up we find different phases, depending on the strength of the inter-layer tunneling t. We discuss the situation where a vortex lattice in the three-dimensional condensate (at large tunneling) undergoes quantum melting at a critical tunneling $t_{c_1}$. For tunneling well below $t_{c_1}$ one expects weakly coupled or isolated layers, each exhibiting a landscape of quantum Hall liquids. After expansion, this gives a radial density distribution with characteristic features (cusps) that provide experimental signatures of the quantum Hall liquids.
description: 9 pages, 9 figures
Engineering Fano resonances in discrete networks
Creators: name: Miroshnichenko, Andrey E.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study transmission properties of discrete networks composed of linear arrays coupled to systems of N side defects, and demonstrate the basic principles of the resonant scattering management through engineering Fano resonances. We find exact solutions for the wave transmission coefficient and reveal the conditions for the perfect reflections and transmissions due to either destructive or constructive interferences. We associate these reflections and transmissions with Fano resonances, and demonstrate how they can be tuned by introducing nonlinear defects into the network.
description: 6 pages, 5 figures, accepted for publication in Phys. Rev. E
title: The attitudes displayed in Punch cartoons to health issues as demonstrated in seven case studies in the period 1841 - 1966
Creators: name: Doughty, J. F
Publisher: name: University of Kent
Year: 2021

description: The hypothesis investigated was: "That over a prescribed period (1841 -1966) the cartoonists contributing to Punch have, through the medium of their work, a significant contribution to make in reflecting public attitudes to matters of Health." For logistic reasons a "Case Study" approach was adopted, these being:- (1) The Dentist. (2) Cholera. (3) The formation of the National Health Service. (4) Smoking and Health. (5) Pollution and Adulteration. (6) The Mentally and Physically Handicapped. (7) The acceptable face of In - Health. Over 500 Cartoons to support the text are reproduced in an accompanying volume.
Ripples in Spacetime from Broken Supersymmetry
Creators: name: Craig, Nathaniel
name: Levi, Noam
name: Mariotti, Alberto
name: Redigolo, Diego
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We initiate the study of gravitational wave (GW) signals from first-order phase transitions in supersymmetry-breaking hidden sectors. Such phase transitions often occur along a pseudo-flat direction universally related to supersymmetry (SUSY) breaking in hidden sectors that spontaneously break $R$-symmetry. The potential along this pseudo-flat direction imbues the phase transition with a number of novel properties, including a nucleation temperature well below the scale of heavy states (such that the temperature dependence is captured by the low-temperature expansion) and significant friction induced by the same heavy states as they pass through bubble walls. In low-energy SUSY-breaking hidden sectors, the frequency of the GW signal arising from such a phase transition is guaranteed to lie within the reach of future interferometers given existing cosmological constraints on the gravitino abundance. Once a mediation scheme is specified, the frequency of the GW peak correlates with the superpartner spectrum. Current bounds on supersymmetry are compatible with GW signals at future interferometers, while the observation of a GW signal from a SUSY-breaking hidden sector would imply superpartners within reach of future colliders.
description: 66 pages latex, fifteen figures incorporated
title: Время в цикле повестей В.М.Костина «Годовые кольца»
Creators: name: Собенников, Анатолий
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Рассматриваются формы художественного времени. Биография человека становится художественным приемом и философемой — человек в потоке времени. В художественном мире главный топос — сибирский провинциальный город, основной хронотоп — хронотоп встречи. Город, сибирские реалии, детали быта даны в аспекте бытового и экзистенциального времени. Но в центре всегда историческое время. Писателя интересует способность или неспособность человека противостоять своему времени; он отстаивает идею самостоянья человека и величие стоицизма.
Dynamical Mass Estimates for Two Luminous Star Clusters in Galactic Merger Remnants
Creators: name: Bastian, N.
name: Saglia, R. P.
name: Goudfrooij, P.
name: Kissler-Patig, M.
name: Maraston, C.
name: Schweizer, F.
name: Zoccali, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high-dispersion spectra of two extremely massive star clusters in galactic merger remnants. One cluster, W30, is located in the ~500 Myr old merger remnant NGC 7252 and has a velocity dispersion and effective radius of sigma=27.5+-2.5 km/s and R_eff=9.3+-1.7 pc, respectively. The other cluster, G114, located in the ~3 Gyr old merger remnant NGC 1316, is much more compact, R_eff=4.08+-0.55 pc, and has a velocity dispersion of sigma=42.1+-2.8 km/s. These measurements allow an estimate of the virial mass of the two clusters, yielding M_dyn(W30)=1.59(+-0.26) * 10^7 Msun and M_dyn(G114)=1.64(+-0.13) *10^7 Msun. Both clusters are extremely massive, being more than three times heavier than the most massive globular clusters in the Galaxy. For both clusters we measure light-to-mass ratios, which when compared to simple stellar population (SSP) models of the appropriate age, are consistent with a Kroupa-type stellar mass function. Using measurements from the literature we find a strong age dependence on how well SSP models (with underlying Kroupa or Salpeter-type stellar mass functions) fit the light-to-mass ratio of clusters. Based on this result we suggest that the large scatter in the light-to-mass ratio of the youngest clusters is not due to variations in the underlying stellar mass function, but instead to the rapidly changing internal dynamics of young clusters. Finally, based on the positions of old globular clusters, young massive clusters (YMCs), ultra-compact dwarf galaxies (UCDs) and dwarf-globular transition objects (DGTOs) in kappa-space we conclude that 1) UCDs and DGTOs are consistent with the high mass end of star clusters and 2) YMCs occupy a much larger parameter space than old globular clusters, consistent with the idea of preferential disruption of star clusters. (abridged)
description: 13 pages, 8 figures, accepted A&A. A high-resolution pdf version of the paper can be found at http://www.star.ucl.ac.uk/~bastian/bastian-dynamical-mass.pdf
Organic matter in interstellar dust lost at the approach to the heliosphere: Exothermic chemical reactions of free radicals ignited by the Sun
Creators: name: Kimura, Hiroshi
name: Postberg, Frank
name: Altobelli, Nicolas
name: Trieloff, Mario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aims. We tackle the conundrums of organic materials missing from interstellar dust when measured inside the Solar System, while undoubtedly existing in the local interstellar cloud (LIC), which surrounds the Solar System. Methods. We present a theoretical argument that organic compounds sublimate almost instantaneously by exothermic reactions, when solar insolation triggers the recombination of free radicals or the rearrangement of carbon bonds in the compounds. Results. It turns out that the triggering temperature lies in the range of 20$-$50 K by considering that sublimation of organic materials takes place beyond the so-called filtration region of interstellar neutral atoms. We find that in-situ measurements of LIC dust in the Solar System result in an overestimate for the gas-to-dust mass ratio of the LIC, unless the sublimation of organic materials is taken into account. We also find that previous measurements of interstellar pickup ions have determined the total elemental abundances of gas and organic materials, instead of interstellar gas alone. Conclusions. We conclude that LIC organic matter suffers from sublimation en route to the heliosphere, implying that our understanding of LIC dust from space missions is incomplete. Since space missions inside the orbit of Saturn cannot give any information on the organic substances of LIC dust, one must await a future exploration mission to the inner edge of the Oort cloud for a thorough understanding of organic substances in the LIC. Once our model for the sublimation of interstellar organic matter by exothermic chemical reactions of free radicals is confirmed, the hypothesis of panspermia from the diffuse interstellar medium is ruled out.
description: 9 pages, 6 figures, to appear in Astronomy & Astrophysics
Efficiency Comparison of Classification in Completion of Master Degree Programs within Two Years and More ThanTwo Years in the Faculty of Science, King Mongkut's Institute of Technology Ladkrabang
Creators: name: Saichon Sinsomboonthong
Publisher: name: Thammasat University
Year: 2020
Subjects: classification
binary logistic regression analysis
discriminant analysis

description: Thai Journal of Science and Technology, 9, 5, 560-574
Linking the Dynamics of User Stance to the Structure of Online Discussions
Creators: name: Largeron, Christine
name: Mardale, Andrei
name: Rizoiu, Marian-Andrei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: This paper studies the dynamics of opinion formation and polarization in social media. We investigate whether users' stance concerning contentious subjects is influenced by the online discussions they are exposed to and interactions with users supporting different stances. We set up a series of predictive exercises based on machine learning models. Users are described using several posting activities features capturing their overall activity levels, posting success, the reactions their posts attract from users of different stances, and the types of discussions in which they engage. Given the user description at present, the purpose is to predict their stance in the future. Using a dataset of Brexit discussions on the Reddit platform, we show that the activity features regularly outperform the textual baseline, confirming the link between exposure to discussion and opinion. We find that the most informative features relate to the stance composition of the discussion in which users prefer to engage.
description: In Symposium on Intelligent Data Analysis. 2021
Locality, Causality and Noncommutative Geometry
Creators: name: Chu, Chong-Sun
name: Furuta, Ko
name: Inami, Takeo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the causality condition in noncommutative field theory and show that the nonlocality of noncommutative interaction leads to a modification of the light cone to the light wedge. This effect is generic for noncommutative geometry. We also check that the usual form of energy condition is violated and propose that a new form is needed in noncommutative spacetime. On reduction from light cone to light wedge, it looks like the noncommutative dimensions are effectively washed out and suggests a reformulation of noncommutative field theory in terms of lower dimensional degree of freedom. This reduction of dimensions due to noncommutative geometry could play a key role in explaining the holographic property of quantum gravity.
description: 16 pages, LaTeX, 4 figures
title: Monte-Carlo simulations for the development of TOSCA's guide at ISIS
Creators: name: Fernandez Castanon, J
Publisher: name: Science and Technology Facilities Council
Year: 2013

description: McStas software package offers the possibility to determine accurate estimates for flux, resolution and optimization parameters with the aim to achieve the best guide for TOSCA instrument, sited at ISIS. Different simulations are compared, defining new perspectives for instruments similar to TOSCA, pursuing optimize the resolution with the minimum costs. Most of the instruments which have at their disposal a neutron guide have lengths greater than 50 or 60 m, as for example the instrument HRPD- ISIS TS1. The astonishing gain obtained installing a neutrons guide, which has been developed attending the particular properties established by a pioneering worldwide instrument as TOSCA, justifies and stipulates the path what has to be followed in the future for instruments with similar characteristics, becoming TOSCA as a point of reference in Inelastic Neutron Scattering (INS) research.
title: End of an era? The Monti government approach to central/local relationships (LIEPP Working Paper, n°06)
Creators: name: Dente, Bruno Oscar
Publisher: name: Sciences Po - LIEPP
Year: 2012
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description:  While there is a growing body of literature dealing with the development of migrant domestic work in Western countries, so far there has been very little attention paid to the development of formal domestic services as an economic activity actively structured through public policy. Yet the development of the domestic services sector in Europe is part of a specific political and economic strategy, which has been actively promoted by national governments and national lobby groups, but also by the European Commission since the 1990s, so that it seems warranted to speak of a new ‘political economy of domestic work’. The aim of this paper is to analyse the rationale behind this public intervention in favour of the development of domestic services, to highlight the economic, political and social issues it raises and to see how the policies implemented interact with existing welfare / care systems, employment regimes, and prevailing gender and social norms. This paper does so through an analysis of the policy discourse at the EU level, and a comparison of the policies implemented and their consequences in France and Sweden. The choice of these two countries is guided by the fact that while they represent very contrasted social models, France and Sweden are the two countries that have gone furthest in terms of the support provided to domestic services, and they have done so through the introduction of a same policy instrument, namely a 50 % tax reduction on domestic services. We suggest that the uncovering of similar trends in the logic and modes of public intervention and in the social, economic and political consequences of this public intervention in two strongly contrasted national models could be revealing of more global trends in Europe, linked to more profound transformations of welfare states, of labour markets, and of societies more generally.
Reclaiming the Atmospheric Commons. The Regional Greenhouse Gas Initiative and a New Model of Emissions Tradingby Leigh Raymond, MIT Press, 2016
Creators: name: Houle, David
Publisher: name: Zenodo
Year: 2018
Subjects: Carbon pricing
Regional Greenhouse Gas Initiative
Carbon market
Cap-and-trade
United States

description: This is a pre-print version of the following publication: Houle, David (2018), Reclaiming the Atmospheric Commons: The Regional Greenhouse Gas Initiative and a New Model of Emissions Trading. Cambridge, MA: MIT Press. 256 pages. ISBN 9780262529303, $35.00 paperback. Leigh Raymond. 2016. Review of Policy Research, 35 (3): 491-493
description: Published in Review of Policy Research: https://doi.org/10.1111/ropr.12304
An x-ray crystallographic study of the crystal structures of four tellurium oxysalt minerals : dugganite, choloalite, rodalquilarite, and graemite
Creators: name: Lam, Anita Eva
Publisher: name: University of British Columbia
Year: 2009

description: The crystal structures of four tellurium oxysalt minerals, dugganite, choloalite, rodalquilarite, and graemite, were investigated with the use of single crystal X-ray crystallography. The crystal structure of dugganite, ideally Pb₃Zn₃Te⁶⁺As₂O₁₄, a 8.460(2), c 5.206(2) Å, V 322.6(2) Å³, space group P321, Z 1, has been solved by direct methods and Patterson techniques, and refined to an R index of 2.7% based on 636 unique reflections measured using MoKα radiation on an automated four-circle diffractometer. The structure consists of heteropolyhedral sheets of edge-sharing TeO₆ octahedra and PbO₈ snub disphenoids, oriented parallel to (001). The sheets are cross-linked by AsO₄ and ZnO₄ tetrahedra, which share corners to form an interlinked, two- and three-connected two-dimensional net parallel to (001). Cheremnykhite and kuksite are considered to be isostructural with dugganite, but with V and P respectively dominant at the As site. The crystal structure of choloalite, ideally Cu₃Pb₃Te⁴⁺₆O₁₈(Cl,H₂O), α 12.520(4) Å, V 1963(2) Å³, space group P4₁32, Z4, has been solved by direct methods and Patterson techniques, and refined to an R index of 5.2% based on 956 unique reflections measured using MoKα radiation on an automated four-circle diffractometer. The structure consists of distorted TeO₆ octahedra, CuΦ₅ square pyramids (where Φ = CI and H₂O), Pb(1)O₉ triaugmented trigonal prisms, and Pb(2)O₁₂ icosahedra. The Pb(1)O₉ polyhedra polymerize to form a threedimensional network, as do the CuΦ₅ and Pb(2)O₁₂ polyhedra. The two networks fit together in three-dimensional space, leaving voids which are filled by the TeO₆ octahedra. The crystal structure of rodalquilarite was originally solved, using photographic methods, to an R index of 9.2%by Dusausoy and Protas (1969). Rodalquilarite, ideally H₃Fe₂(TeO₃)₄Cl, a 9.021(1) b 5.1170(7), c 6.6539(8) Å, α 103.23(1)°, β 106.66(1)°, γ 78.07(1)°, V 283.15(6) Å³, space group P1, Z1 was redetermined and refined to an R index of 4.1% based on 1672 unique reflections measured using MoKα radiation on an automated four-circle diffractometer. The structure consists of chains of FeO₆ octahedra parallel to the b-axis connected with tellurium polyhedra to form planes parallel to be. These planes are held together by hydrogen and long (>3.0 Å) Te-Φ) (where Φ = O or CI) bonds. A four-circle diffractometer equipped with synchrotron radiation was used to collect a data set for graemite, CuTeO₆H₂0. Data yielded a 6.816, b 25.627, c 5.784, with all angles 90°. Structural models were refined to an R index of 6.9% in Pmc2₁ and to 7.7% in a reduced cell (1/2 a) using Pna2₁ . Neither of the models gave a satisfactory result although a substructure in Pna2₁ is proposed. Precession photographs show the presence of disorder in the structure. Further study, including upper level precession work and electron microprobe analysis, is required.
Critical Level Statistics at the Many-Body Localization Transition Region
Creators: name: Rao, Wen-Jia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the critical level statistics at the many-body localization (MBL) transition region in random spin systems. By employing the inter-sample randomness as indicator, we manage to locate the MBL transition point in both orthogonal and unitary models. We further count the $n$-th order gap ratio distributions at the transition region up to $n=4$, and find they fit well with the short-range plasma model (SRPM) with inverse temperature $β=1$ for orthogonal model and $β=2$ for unitary. These critical level statistics are argued to be universal by comparing results from systems both with and without total $S_{z}$ conservation. We also point out that these critical distributions can emerge from the spectrum of a Poisson ensemble, which indicates the thermal-MBL transition point is more affected by the MBL phase rather than thermal phase.
description: 7 pages, 4 figures
Supplementary material.docx
Creators: name: Cardelle Cobas, Alejandra
name: Lopez-Santamarina, Aroa
name: Mirnada, Jose Manuel
name: Cepeda Saez, Alberto
name: Sinisterra-Loaiza, Laura
name: Mondragón, Alicia
Publisher: name: figshare
Year: 2021
Subjects: subject: 111199 Nutrition and Dietetics not elsewhere classified
subject: FOS: Health sciences

description: Supplementary materialManuscript:Evaluation of the potential prebiotic effect of Himanthalia elongata, an Atlantic brown seaweed, in an in vitro model of the human distal colon

Journal of food and bioprocess Technology
Effects of architectural issues on a km3 scale detector
Creators: name: Coniglione, R.
name: Collaboration, the NEMO
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Simulation results showing the comparison between the performance of different km3 detector geometries are reported. Effective neutrino areas and angular resolutions are reported for three different geometries based on NEMO-towers and strings. The results show that the NEMO-tower based detector has the best performance concerning both the effective area and the angular resolution isotropy
description: to be published on VVVNT2 proceedings (Catania, Italy, November 8-11, 2005)
title: К новым изданиям сочинений Л.Н.Толстого
Creators: name: Степанова, Алла
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Статья посвящена текстологическим проблемам, с которыми редакторы сталкиваются при подготовке новых популярных изданий Л.Н.Толстого. Эти проблемы, в первую очередь связанные с отсутствием надежного источника для публикации, показаны на примере сборника публицистических произведений писателя «Что такое искусство?», который в 2020 году вышел в петербургском издательстве «Азбука» и в котором был исправлен ряд ошибок предыдущих изданий, в том числе прижизненного. В то же время необходимость научной подготовки публицистики Толстого по-прежнему остается насущной.
The AGN-starburst connection, Galactic superwinds, and M_BH - sigma
Creators: name: King, Andrew
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observations of young galaxies at redshifts z ~ 3 have revealed simultaneous AGN and starburst activity, as well as galaxy-wide superwinds. I show that there is probably a close connection between these phenomena by extending an earlier treatment of the M_BH - sigma relation (King, 2003). As the black hole grows, an outflow drives a shell into the surrounding gas. This stalls after a dynamical time at a size determined by the hole's current mass and thereafter grows on the Salpeter timescale. The gas trapped inside this bubble cools and forms stars and is recycled as accretion and outflow. The consequent high metallicity agrees with that commonly observed in AGN accretion. Once the hole reaches a critical mass this region attains a size such that the gas can no longer cool efficiently. The resulting energy-driven flow expels the remaining gas as a superwind, fixing both the M_BH - sigma relation and the total stellar bulge mass at values in good agreement with observation. Black hole growth thus produces starbursts and ultimately a superwind.
description: ApJ, in press, 4 pages
Point-defects assisted Zn-diffusion in AlGaInP/GaInP systems during the MOVPE growth of inverted multijunction solar cells
Creators: name: Hinojosa, Manuel
name: García, Iván
name: Dadgostar, Shabnam
name: Algora, Carlos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the dynamics of Zn diffusion in MOVPE-grown AlGaInP/GaInP systems by the comparison of different structures that emulate the back-surface field (BSF) and base layers of a GaInP subcell integrated into an inverted multijunction solar cell structure. Through the analysis of secondary ion mass spectroscopy (SIMS), electrochemical capacitance-voltage (ECV) and spectrally resolved cathodoluminescence (CL) measurements, we provide experimental evidence that 1) the Zn diffusion is enhanced by point defects injected during the growth of the tunnel junction cathode layer; 2) the intensity of the process is determined by the cathode doping level and it happens for different cathode materials; 3) the mobile Zn is positively charged and 4) the diffusion mechanism reduces the CuPt ordering in GaInP. We demonstrate that using barrier layers the diffusion of point defects can be mitigated, so that they do not reach Zn-doped layers, preventing its diffusion. Finally, the impact of Zn diffusion on solar cells with different Zn-profiles is evaluated by comparing the electrical I-V curves at different concentrations. The results rule out the introduction of internal barriers in the BSF but illustrate how Zn diffusion under typical growth condition can reach the emitter and dramatically affect the series resistance, among other effects.
title: Monte Carlo modelling of the OSIRIS neutron backscattering spectrometer
Creators: name: Pokhilchuk, K
Publisher: name: Science and Technology Facilities Council
Year: 2013

description: This report focuses on modelling the OSIRIS neutron-backscattering instrument using Monte Carlo methods with the use of the McStas software package. The aim is to match the experimental energy resolution of OSIRIS and thus be able to simulate the instrument in order to investigate its various properties and performance characteristics. Furthermore, understanding quantitatively how different components of OSIRIS contribute towards its resolution function will provide insight into potential upgrade possibilities of the instrument. The simulated energy resolution FWHM values of 23.7 μeV for PG002 and 96.3 μeV for PG004 show a good agreement with the experimental results of 25.0 μeV for PG002 and 99.5 μeV for PG004 and are only 5% and 3% lower respectively.
Multi Shell Model for Majumdar-Papapetrau Spacetimes
Creators: name: Gurses, Metin
name: Himmetoglu, Burak
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Exact solutions to static and non-static Einstein-Maxwell equations in the presence of extremely charged dust embedded on thin shells are constructed. Singularities of multi-black hole Majumdar-Papapetrou and Kastor-Trashen solutions are removed by placing the matter on thin shells. Double spherical thin shell solution is given as an illustration and the matter densitiies on the shells are derived.
description: To appear in Physical Review D
title: Der Supermarkt von morgen? Über Potentiale und Herausforderungen von Kooperativen Lebensmittelläden
Creators: name: Menke, Clara
Publisher: name: KOBRA Universität Kassel
Year: 2025
Subjects: subject: Food coop
subject: SuperCoop
subject: Kooperatives Wirtschaften
subject: Alternative Lebensmittelnetzwerke
classificationCode: 330
subject: 330
classificationCode: Konsumgenossenschaft
subject: Konsumgenossenschaft
classificationCode: Kooperation
subject: Kooperation
classificationCode: Alternative Wirtschaft
subject: Alternative Wirtschaft
classificationCode: Supermarkt
subject: Supermarkt

description:
Kooperative Lebensmittelläden sind in Deutschland noch nicht weit verbreitet. Dabei zeigen internationale Beispiel aus New York, Paris und Brüssel, dass das Konzept (erfolgreich) funktioniert.
Um ein besseres Verständnis von Kooperativen Lebensmittelläden zu bekommen und die von ihnen ausgehenden Potentiale zu erforschen, beschäftigt sich diese Arbeit mit ihnen. Dabei werden Kooperative Lebensmittelläden sowohl im Kontext theoretisch-konzeptioneller Grundlagen alternativen Wirtschaftens betrachtet, als auch praktisch durch Interviews mit Akteur:innen von vier Kooperativen in München, Berlin, Hamburg und Köln untersucht.
Wegen ihres Anspruchs, eine Alternative zu bestehenden Problemen im Lebensmitteleinzelhandel zu liefern, weisen die gemeinschaftlich geführten Läden vielfältige Unterschiede zu klassischen Lebensmittelläden auf. Unter anderem solidarische Versorgungsstrukturen, regionale Wertschöpfungsketten, Transparenz und Gemeinschaftsaspekte spielen eine zentrale Rolle.
Fast Parameter Estimation of Binary Mergers for Multimessenger Followup
Creators: name: Finstad, Daniel
name: Brown, Duncan A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Significant human and observational resources have been dedicated to electromagnetic followup of gravitational-wave events detected by Advanced LIGO and Virgo. As the sensitivity of LIGO and Virgo improves, the rate of sources detected will increase. Margalit & Metzger (2019; arXiv:1904.11995) have suggested that it may be necessary to prioritize observations of future events. Optimal prioritization requires a rapid measurement of a gravitational-wave event's masses and spins, as these can determine the nature of any electromagnetic emission. We extend the relative binning method of Zackay et al. (2018; arXiv:1806.08792) to a coherent detector-network statistic. We show that the method can be seeded from the output of a matched-filter search and used in a Bayesian parameter measurement framework to produce marginalized posterior probability densities for the source's parameters within 20 minutes of detection on 32 CPU cores. We demonstrate that this algorithm produces unbiased estimates of the parameters with the same accuracy as running parameter estimation using the standard gravitational-wave likelihood. We encourage the adoption of this method in future LIGO-Virgo observing runs to allow fast dissemination of the parameters of detected events so that the observing community can make best use of its resources.
description: 11 pages, 5 figures