cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fundamental X-ray Corona Parameters of Swift/BAT AGN
Creators: name: Hinkle, Jason T.
name: Mushotzky, Richard
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: While X-ray emission from active galactic nuclei (AGN) is common, the detailed physics behind this emission is not well understood. This is in part because high quality broadband spectra are required to precisely derive fundamental parameters of X-ray emission such as the photon index, folding energy, and reflection coefficient. Here we present values of such parameters for 33 AGN observed as part of the 105 month Swift/BAT campaign and with coordinated archival XMM-Newton and NuSTAR observations. We look for correlations between the various coronal parameters in addition to correlations between coronal parameters and physical properties such as black hole mass and Eddington ratio. Using our empirical model, we find good fits to almost all of our objects. The folding energy was constrained for 30 of our 33 objects. When comparing Seyfert 1 - 1.9 to Seyfert 2 galaxies, a K-S test indicates that Seyfert 2 AGN have lower Eddington ratios and photon indices than Seyfert 1 - 1.9 objects with p-values of $5.6 \times 10^{-5}$ and $7.5 \times 10^{-3}$ respectively. We recover a known correlation between photon index and reflection coefficient as well as the X-ray Baldwin effect. Finally, we find that the inclusion of the high energy Swift BAT data significantly reduces the uncertainties of spectral parameters as compared to fits without the BAT data.
description: 20 pages, 15 figures, and 5 tables. Accepted for publication in MNRAS
ESEMPI DI SECONDA MANO
Creators: name: Barsi, Monica
name: Pinnavaia, Laura
Publisher: name: di/segni
Year: 2019

description: Questo volume, che si avvale della partecipazione di un gruppo di docenti del Dipartimento di Lingue e Letterature Straniere dell’Università degli Studi di Milano, apre una prospettiva plurilingue e comparatista sulla citazione come luogo d’incontro tra almeno due voci. La suddivisione nelle diverse parti rende conto dell’internazionalità sottesa all’esigenza del citare che può essere interpretata all’interno della stessa lingua o da una lingua all’altra con diversi risultati. Il merito di questo tipo di ricerche è l’accostamento inedito di opere e contesti che difficilmente entrerebbero in risonanza. La raccolta sincronica di saggi monografici, oltre a offrire preziose messe a fuoco nelle singole aree di studio, propone di fatto collegamenti interdisciplinari promettenti e indispensabili per futuri spunti di riflessione.
description: di/segni, ESEMPI DI SECONDA MANO
Letter from Kathleen Raine to Percy and Elizabeth Jarrett, March 18, [1984]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Jarrett, Elizabeth
subject: Skelton, Sylvia
subject: Jarrett, Percy W.
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Critics
valueUri: http://id.worldcat.org/fast/883769

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this letter, Raine comments on on her health, the weather, and the Jarretts' recent move to Canada.
Evolution to a smooth universe in an ekpyrotic contracting phase with w > 1
Creators: name: Garfinkle, David
name: Lim, Woei Chet
name: Pretorius, Frans
name: Steinhardt, Paul J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A period of slow contraction with equation of state w > 1, known as an ekpyrotic phase, has been shown to flatten and smooth the universe if it begins the phase with small perturbations. In this paper, we explore how robust and powerful the ekpyrotic smoothing mechanism is by beginning with highly inhomogeneous and anisotropic initial conditions and numerically solving for the subsequent evolution of the universe. Our studies, based on a universe with gravity plus a scalar field with a negative exponential potential, show that some regions become homogeneous and isotropic while others exhibit inhomogeneous and anisotropic behavior in which the scalar field behaves like a fluid with w=1. We find that the ekpyrotic smoothing mechanism is robust in the sense that the ratio of the proper volume of the smooth to non-smooth region grows exponentially fast along time slices of constant mean curvature.
description: 8 pages, 5 figures; updated to coincide with published version
What the elementary schools should be doing : blueprints from three Canadian provinces - Ontario, Alberta, and British Columbia
Creators: name: Alapini, H. Olukayode
Publisher: name: University of British Columbia
Year: 2010

description: This study examined major provincial curriculum-defining documents produced during the period 1969 to 1977 in Ontario, Alberta, and British Columbia, Canada, in order to identify: (1) the reasons for the preparation of the documents, (2) the processes by which the documents were prepared, (3) the recommendations made concerning priorities for the elementary schools curriculum, and (4) any possible applications for the Nigerian educational systems. The conceptualization used in the study represented curriculum as a process of societal educational decision-making and a product of that process. The conceptualization was used as an analytical tool to examine the source documents. The specific questions used in the study are of two types - process and product. The questions relating to process were intended to identify in the source documents the procedures used for their preparation. The questions relating to product sought to identify in the documents the curricula for the elementary schools. A comparative analysis of the findings about the procedures showed essential differences between the Ontario and the Alberta documents on the one hand and the British Columbia document on the other. Two policy decision-making models (rational-participatory and reactive-adversarial) were used to examine the procedures. The rational-participatory model was recommended for the Nigerian educational systems. An assessment of the procedural methods observed in the three Canadian documents indicated that the methods could apply to Nigerian settings in a particular way which could facilitate the involvement of both the literate and the illiterate in the process of a societal education decision-making. A comparative analysis of the findings about the curriculum for the elementary schools showed that the three Canadian documents display in their statements of ends and means of schooling considerable variety in breadth, specificity, and clarity. The advantages of specificity may be offset to some extent by the way in which broader statements may facilitate curriculum development within the framework which they provide.
Nystaleinae Forbes 1948
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Notodontidae

description: Nystaleinae 1595 * R Dasylophia anguina (Smith, 1797) M Jun – M Aug – – G T: Forbes (1948) L: None C: CNC, UASM
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on page 235, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["Forbes WTM (1948) Th e Lepidoptera of New York and neighboring states, Part II. Geometridae, Sphingidae, Notodontidae, Lymantriidae. Cornell University Agricultural Experiment Station Memoirs 274: 1 - 263."]}
‘PERFORMAR’ LATINOAMÉRICA
Creators: name: Bizzarri, Gabriele
Publisher: name: di/segni
Year: 2020

description: Intersecando teoría postcolonial y gender studies, este volumen se encarga de fundar un territorio imaginario llamado ‘Queeramérica’, donde la ‘naturaleza’ es estudiado montaje, las fronteras son inciertas y las identidades ambiguas. Los cuerpos diferentes y diversamente orientados que deambulan por estas páginas son, sobre todo, ‘cuerpos locales’, emblemáticos de una manera inédita de desglosar el lema de lo local y ‘llevar’ el estigma periférico: cuerpos libertariamente desconfinados sin llegar a ser rendidos al discurso de la transitividad universal. Detectando un distintivo ‘giro queer’ en los quehaceres literarios hispanoamericanos a partir de los años 90 del pasado siglo, la investigación se concentra en las borrosas ‘visiones de Latinoamérica’ que, después de los mitos y el desencanto, empiezan a salir de los talleres de tres autorías fuertes del canon chileno: Pedro Lemebel, Diamela Eltit y Roberto Bolaño, los responsables de una versión productivamente torcida del ‘viejo y embustero cuento’ de la identidad hispanoamericana, los pioneros de un inédito lugar de la cultura en el que muchos escritores del nuevo milenio echarán raíces.
description: di/segni, ‘PERFORMAR’ LATINOAMÉRICA
Cutting and gluing with running couplings in $\mathcal{N}=2$ QCD
Creators: name: Aspman, Johannes
name: Furrer, Elias
name: Manschot, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the order parameter $u=\left$ as function of the running coupling constant $τ\in \mathbb{H}$ of asymptotically free $\mathcal{N}=2$ QCD with gauge group $SU(2)$ and $N_f\leq 3$ massive hypermultiplets. If the domain for $τ$ is restricted to an appropriate fundamental domain $\mathcal{F}_{N_f}$, the function $u$ is one-to-one. We demonstrate that these domains consist of six or less images of an ${\rm SL}(2,\mathbb{Z})$ keyhole fundamental domain, with appropriate identifications of the boundaries. For special choices of the masses, $u$ does not give rise to branch points and cuts, such that $u$ is a modular function for a congruence subgroup $Γ$ of ${\rm SL}(2,\mathbb{Z})$ and the fundamental domain is $Γ\backslash\mathbb{H}$. For generic masses, however, branch points and cuts are present, and subsets of $\mathcal{F}_{N_f}$ are being cut and glued upon varying the mass. We study this mechanism for various phenomena, such as decoupling of hypermultiplets, merging of local singularities, as well as merging of non-local singularities which give rise to superconformal Argyres-Douglas theories.
description: 56 pages + Appendices, 22 figures
The effect of two-temperature post-shock accretion flow on the linear polarization pulse in magnetic cataclysmic variables
Creators: name: Sarty, Gordon E.
name: Saxton, Curtis J.
name: Wu, Kinwah
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The temperatures of electrons and ions in the post-shock accretion region of a magnetic cataclysmic variable (mCV) will be equal at sufficiently high mass flow rates or for sufficiently weak magnetic fields. At lower mass flow rates or in stronger magnetic fields, efficient cyclotron cooling will cool the electrons faster than the electrons can cool the ions and a two-temperature flow will result. Here we investigate the differences in polarized radiation expected from mCV post-shock accretion columns modeled with one- and two-temperature hydrodynamics. In an mCV model with one accretion region, a magnetic field >~30 MG and a specific mass flow rate of ~0.5 g/cm/cm/s, along with a relatively generic geometric orientation of the system, we find that in the ultraviolet either a single linear polarization pulse per binary orbit or two pulses per binary orbit can be expected, depending on the accretion column hydrodynamic structure (one- or two-temperature) modeled. Under conditions where the physical flow is two-temperature, one pulse per orbit is predicted from a single accretion region where a one-temperature model predicts two pulses. The intensity light curves show similar pulse behavior but there is very little difference between the circular polarization predictions of one- and two-temperature models. Such discrepancies indicate that it is important to model some aspect of two-temperature flow in indirect imaging procedures, like Stokes imaging, especially at the edges of extended accretion regions, were the specific mass flow is low, and especially for ultraviolet data.
description: Accepted for publication in Astrophysics & Space Science
Universal Scalings in 2D Anisotropic Dipolar Excitonic Systems
Creators: name: Chuang, Chern
name: Cao, Jianshu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Low-dimensional excitonic materials have inspired much interest owing to their novel physical and technological prospects. In particular, those with strong in-plane anisotropy are among the most intriguing but short of general analyses. We establish the universal functional form of the anisotropic dispersion in the small $k$ limit for 2D dipolar excitonic systems. While the energy is linearly dispersed in the direction parallel to the dipole in-plane, the perpendicular direction is dispersionless up to linear order, which can be explained by the quantum interference effect of the interaction among the constituents of 1D subsystems. The anisotropic dispersion results in a $E^{\sim0.5}$ scaling of the system density of states and predicts unique spectroscopic signatures including: (1) disorder-induced absorption linewidth, $W(σ)\simσ^{2.8}$, with $σ$ the disorder strength, (2) temperature dependent absorption linewidth, $W(T)\sim T^{s+1.5}$, with $s$ the exponent of the environment spectral density, and (3) the out-of-plane angular $θ$ dependence of the peak splittings in absorption spectra, $ΔE(θ)\propto\sin^2θ$. These predictions are confirmed quantitatively with numerical simulations of molecular thin films and tubules.
Experimentos simples demostrando algunas propiedades de lentes difractivas y redes espirales
Creators: name: Lunazzi, Jose J.
name: Magalhaes, Daniel S. F.
name: Amon, Maria C. I.
name: Rivera, Noemi I. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics Education (physics.ed-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce some new experiments where light diffraction is demonstrated with simple elements: white light diffraction with a coin, construction of a diffractive lens by holography, diffraction properties in digital discs and an interesting experiment that generates images with them. This experiments lead to the idea of a new optics that is entirely diffractive, which is a trend in development for its construction facilities, weight reduction and other benefits it causes.
description: 12 pages, 14 figures
Reading in Russia. Practices of Reading and Literary Communication, 1760-1930
Creators: name: Rebecchini, Damiano
name: Vassena (Eds.), Raffaella
Publisher: name: di/segni
Year: 2015

description: “Reader, where are you?”, wondered, in the mid-1880s, Mikhail Saltykov-Shchedrin, one of the Russian writers that paid the most attention to the readership of his time. Saltykov-Shchedrin’s call did not go unanswered. Over the past two centuries, various disciplines – from the social sciences to psychology, literary criticism, semiotics, historiography and bibliography – alternately tried to outline the specific features of the Russian reader and investigate his function in the history of Russian literary civilization. The essays collected in this volume follow in the tradition but, at the same time, present new challenges to the development of the discipline. The contributors, coming from various countries and different cultures (Russia, the US, Italy, France, Britain), discuss the subject of reading in Russia – from the age of Catherine II to the Soviet regime – from various perspectives: from aesthetics to reception, from the analysis of individual or collective practices, to the exploration of the social function of reading, to the spread and evolution of editorial formats. The contributions in this volume return a rich and articulated portrait of a culture made of great readers. Contributors: Rodolphe Baudin (Université de Strasbourg); Edyta Bojanowska (Rutgers University); Jeffrey Brooks (Johns Hopkins University); Evgeny Dobrenko (University of Sheffield); Robin Feuer Miller (Brandeis University); Oleg Lekmanov (Higher School of Economics, Moscow); Anne Lounsbery (New York University); Damiano Rebecchini (Università degli Studi di Milano); Abram Reitblat (RGBI – NLO, Moscow); Laura Rossi (Università degli Studi di Milano); Jon Stone (Franklin & Marshall College); William Mills Todd III (Harvard University); Raffaella Vassena (Università degli Studi di Milano).
description: di/segni, Reading in Russia. Practices of Reading and Literary Communication, 1760-1930
The analysis of factors affecting online investment platforms in the Philippine context: an integration of SET-VBN theory
Creators: name: Casas, Ethan S.
name: Ong, Ardvin Kester S.
name: Diaz, John Francis T.
name: German, Josephine D.
name: Gumasing, Ma. Janice J.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health

description: Innovative technology initiated the popularity of online investment platforms (OIPs) among households. However, acceptability and human factors affecting behavioral use has been underexplored despite its popularity. This study’s main objective was to assess consumers’ behavioral intention to invest among investors from the Philippines through purposive sampling. The integration of Social Exchange Theory (SET) and Value-Belief-Norm Theory (VBN) was considered for the holistic assessment in this study. This study was assessed and evaluated holistically through a higher-order partial least square structural equation analysis to determine significant factors affecting investment intention. Analysis using SMART-PLS v4.0, it was seen that social norm was the most significant latent variable, followed by values (ie traditional, egoistic, openness to change, and altruistic), trust, personal norm, perceived safety, beliefs on utility function, and economic benefit. The study highlights the importance of the perception of influential people regarding investment and how crucial it is for consumers to have their values aligned and satisfied with the platform. The study is the first to utilize SET and VBN outside their usual context – sustainability and environmental-related behavioral studies. Thus, the newly contextualized framework could be developed and extended with further implications presented for utilization both in the theoretical and practical aspects. This study provided insight on the financial and investment behavior among Filipinos, setting a benchmark for this area since no studies have yet covered this. The establishment of the integrated theory could be applied and extended among financial behavior with social and behavioral exchange in terms of economic aspect related studies. Practical and managerial implications have been provided with actionable items for consideration and application in real-life setting.
Provence and the British Imagination
Creators: name: Davison, Claire
name: Laurent, Béatrice
name: Patey, Caroline
name: Vanfasse (Eds.), Nathalie
Publisher: name: di/segni
Year: 2014

description: Although it resonates today with lavender fields, sunny heritage locations and the gentrified memory of Paul Cézanne’s pictorial turbulence, Provence has not always been the attractive territory of pacified leisure and festival culture. since the seventeenth century, indeed, the region has inscribed its shifting geography, complex politics and the extraordinary diversity of its land and seascapes in the perception and imagination of British visitors. in the steps of anonymous or excellent travellers, the chapters of this volume chart some of the most significant moments in the intercultural transactions between the proud linguistic and literary distinctiveness of the province on one hand and the always challenged and sometimes baffled perception of anglophone (and anglophile) visitors on the other. spanning across two centuries, from the largely unknown pre-revolutionary Provence visited by John locke and tobias smollett through the Victorian paradise of popular tourism and finally to the more secret ‘homeland’ of Modernists, this volume reveals an unexpected Provence which, in oblique and complex ways, has long hold a mirror to British culture and often acted as the laboratory of its artistic life.
description: di/segni, Provence and the British Imagination
Letter from Kathleen Raine to Percy and Elizabeth Jarrett, May 03, [1984]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Jarrett, Elizabeth
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Jarrett, Percy W.
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Skelton, Sylvia
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Critics
valueUri: http://id.worldcat.org/fast/883769

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this letter, Raine calls the Jarretts her guardian angels for their roles in a sale of her manuscripts, and sends her love to Robin and Sylvia Skelton.
The Mysterious Lives Of Speckles. I. Residual atmospheric speckle lifetimes in ground-based coronagraphs
Creators: name: Males, Jared R.
name: Fitzgerald, Michael P.
name: Belikov, Ruslan
name: Guyon, Olivier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: High-contrast imaging observations are fundamentally limited by the spatially and temporally correlated noise source called speckles. Suppression of speckle noise is the key goal of wavefront control and adaptive optics (AO), coronagraphy, and a host of post-processing techniques. Speckles average at a rate set by the statistical speckle lifetime, and speckle-limited integration time in long exposures is directly proportional to this lifetime. As progress continues in post-coronagraph wavefront control, residual atmospheric speckles will become the limiting noise source in high-contrast imaging, so a complete understanding of their statistical behavior is crucial to optimizing high-contrast imaging instruments. Here we present a novel power spectral density (PSD) method for calculating the lifetime, and develop a semi-analytic method for predicting intensity PSDs behind a coronagraph. Considering a frozen-flow turbulence model, we analyze the residual atmosphere speckle lifetimes in a MagAO-X-like AO system as well as 25--39 m giant segmented mirror telescope (GSMT) scale systems. We find that standard AO control shortens atmospheric speckle lifetime from ~130 ms to ~50 ms, and predictive control will further shorten the lifetime to ~20 ms on 6.5 m MagAO-X. We find that speckle lifetimes vary with diameter, wind speed, seeing, and location within the AO control region. On bright stars lifetimes remain within a rough range of ~20 ms to ~100 ms. Due to control system dynamics there are no simple scaling laws which apply across a wide range of system characteristics. Finally, we use these results to argue that telemetry-based post-processing should enable ground-based telescopes to achieve the photon-noise limit in high-contrast imaging.
description: Accepted to PASP
Tabucchi o del Novecento
Creators: name: Russo (Ed.), Vincenzo
Publisher: name: di/segni
Year: 2014

description: OTTO SAGGI E UNA TESTIMONIANZA. Di questo è composto Tabucchi o del Novecento, raccolta di studi e interventi con cui un gruppo di specialisti ha voluto rendere omaggio alla memoria dello scrittore, dell’intellettuale e del portoghesista Antonio Tabucchi (1943-2012). L’opera narrativa analizzata dalla prospettiva teorica degli italianisti o letta nelle pieghe della sua ricezione europea (in special modo, iberica), l’opera traduttiva nella sua dorsale brasiliana o declinata come impraticabile autotraduzione, l’opera critica dell’interprete di Fernando Pessoa nelle sue rifrazioni ermeneutiche: ecco le tessere di un “possibile” puzzle che prova a restituire uno dei volti “possibili” dell’autore di Sostiene Pereira. In appendice, il ricordo inedito di Antonio Tabucchi firmato dallo scrittore Giovanni Catelli.
description: di/segni, Tabucchi o del Novecento
Colossal enhancement of upper critical fields in noncentrosymmetric heavy fermion superconductors near quantum criticality: CeRhSi$_3$ and CeIrSi$_3$
Creators: name: Tada, Y.
name: Kawakami, N.
name: Fujimoto, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Strong coupling effects on the upper critical fields $H_{c2}$ along the c-axis in the noncentrosymmetric heavy fermion superconductors near quantum criticality CeRhSi$_3$ and CeIrSi$_3$ are examined. For sufficiently large spin-orbit interactions due to the lack of inversion symmetry, $H_{c2}$ is mainly determined by the orbital depairing effects. From microscopic calculations taking into account the strong spin fluctuations, we show that $H_{c2}$ is extremely enhanced as the system approaches the quantum critical point, resulting in $H_{c2}\sim 30$T even in the case with the low transition temperature $T_c(H=0)\sim 1$K, which well explains the huge $H_{c2}$ observed in the recent experiments. Our results reveal intrinsic and universal properties common to strong coupling superconductivity caused by spin fluctuations near quantum criticality.
Mujeres y Emancipación de la América Latina y el Caribe en los siglos XIX y XX
Creators: name: Perassi, Emilia
name: Campuzano, Luisa
name: Bajini (Eds.), Irina
Publisher: name: di/segni
Year: 2014

description: La determinación adoptada por los gobiernos de la región para conmemorar el inicio de los movimientos y guerras que condujeron a la mayor parte de los países que hoy llamamos Latinoamérica a alcanzar la independencia del yugo colonial, fue un acuerdo basado más en la coincidencia o cercanía de algunas fechas que en una simultaneidad estrictamente cronológica. Este volumen da cuenta de las anticipaciones, retrasos y continuidades de un proceso emancipatorio aún por completar; de la participación que en él tuvieron y tienen las mujeres, de sus liderazgos, vivencias, estrategias y perspectivas; así como de su representación por la literatura y el arte, y de su apreciación por la historiografía de más variada naturaleza o por quienes descubren las entretelas y la manipulación de estas efemérides. Los textos aquí reunidos se dividen en dos secciones: la primera agrupa a los que se relacionan con distintos momentos del proceso de emancipación latinoamericana y de sus mujeres; la segunda, sobre distintas escritoras italianas contemporáneas, está dedicada a Alba de Céspedes, autora de origen cubano que vivió entre Roma y París, y cuyo abuelo iniciara las guerras de independencia de la Isla en 1868. La valiosa concurrencia de firmas internacionales en esta miscelánea se debe al auspicio del Programa de Estudios de la Mujer de la prestigiosa institución cultural Casa de las Américas de Cuba, destinado a dar visibilidad a la trayectoria histórica y, a las manifestaciones culturales de las mujeres latinoamericanas y caribeñas, a promover el trabajo de sus artistas y escritoras contemporáneas, así como a discutir los temas teóricos correspondientes, y sus contextos de producción y recepción.
description: di/segni, Mujeres y Emancipación de la América Latina y el Caribe en los siglos XIX y XX
Astrometry of H$_{2}$O Masers in Nearby Star-Forming Regions with VERA. III. IRAS 22198+6336 in L1204G
Creators: name: Hirota, Tomoya
name: Ando, Kazuma
name: Bushimata, Takeshi
name: Choi, Yoon Kyung
name: Honma, Mareki
name: Imai, Hiroshi
name: Iwadate, Kenzaburo
name: Jike, Takaaki
name: Kameno, Seiji
name: Kameya, Osamu
name: Kamohara, Ryuichi
name: Kan-ya, Yukitoshi
name: Kawaguchi, Noriyuki
name: Kijima, Masachika
name: Kim, Mi Kyoung
name: Kobayashi, Hideyuki
name: Kuji, Seisuke
name: Kurayama, Tomoharu
name: Manabe, Seiji
name: Matsui, Makoto
name: Matsumoto, Naoko
name: Miyaji, Takeshi
name: Miyazaki, Atsushi
name: Nagayama, Takumi
name: Nakagawa, Akiharu
name: Namikawa, Daichi
name: Nyu, Daisuke
name: Oh, Chung Sik
name: Omodaka, Toshihiro
name: Oyama, Tomoaki
name: Sakai, Satoshi
name: Sasao, Tetsuo
name: Sato, Katsuhisa
name: Sato, Mayumi
name: Shibata, Katsunori M.
name: Tamura, Yoshiaki
name: Ueda, Kosuke
name: Yamashita, Kazuyoshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results of multi-epoch VLBI observations with VERA (VLBI Exploration of Radio Astrometry) of the 22 GHz H$_{2}$O masers associated with a young stellar object (YSO) IRAS 22198+6336 in a dark cloud L1204G. Based on the phase-referencing VLBI astrometry, we derive an annual parallax of IRAS 22198+6336 to be 1.309$\pm$0.047 mas, corresponding to the distance of 764$\pm$27 pc from the Sun. Although the most principal error source of our astrometry is attributed to the internal structure of the maser spots, we successfully reduce the errors in the derived annual parallax by employing the position measurements for all of the 26 detected maser spots. Based on this result, we reanalyze the spectral energy distribution (SED) of IRAS 22198+6336 and find that the bolometric luminosity and total mass of IRAS 22198+6336 are 450$L_{\odot}$ and 7$M_{\odot}$, respectively. These values are consistent with an intermediate-mass YSO deeply embedded in the dense dust core, which has been proposed to be an intermediate-mass counterpart of a low-mass Class 0 source. In addition, we obtain absolute proper motions of the H$_{2}$O masers for the most blue-shifted components. We propose that the collimated jets aligned along the east-west direction are the most plausible explanation for the origin of the detected maser features.
description: 15 pages, 7 figures, accepted for publication in PASJ (Vol.60, No.5, October 25, VERA special issue)
Anomalous Hall effect from gapped nodal line in Co2FeGe Heusler compound
Creators: name: Shukla, Gaurav K.
name: Sau, Jyotirmay
name: Shahi, Nisha
name: Singh, Anupam K.
name: Kumar, Manoranjan
name: Singh, Sanjay
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Full Heusler compounds with Cobalt as a primary element show anomalous transport properties owing to the Weyl fermions and broken time-reversal symmetry. We present here the study of anomalous Hall effect (AHE) in Co2FeGe Heusler compound. The experiment reveals anomalous Hall conductivity (AHC) 100 S/cm at room temperature with an intrinsic contribution of 78 S/cm . The analysis of anomalous Hall resistivity suggests the scattering independent intrinsic mechanism dominates the overall behaviour of anomalous Hall resistivity. The first principles calculation reveals that the Berry curvature originated by gapped nodal line near EF is the main source of AHE in Co2FeGe Heusler compound. The theoretically calculated AHC is in agreement with the experiment.
The Battle of Konotop 1659. Exploring alternatives in East European History
Creators: name: Brogi Bercoff, Giovanna
name: Rumyantsev (Eds.), Oleg
Publisher: name: di/segni
Year: 2013

description: The battle that took place near Konotop in late June 1659 was a continuation of the Muscovite-Cossack war, which began in the fall of 1658, soon after the signing of the Union of Hadiach. Cossack and Tatar detachments trapped a significant portion of the Muscovite army, leading to enormous Russian losses. The unprecedented defeat of the previously invincible forces caused panic in Russia, but Muscovites’ capacity to turn defeat into political victory, and the fratricidal struggle in Ukraine, known as the “Ruin”, left most of the Cossack lands on the Right Bank of the Dnieper uninhabitable. Konotop is a classic example of a battle won, but a war lost. Mariusz Robert Drozdowski, Ksenia Konstantynenko, Piotr Kroll, Serhii Plokhy, Oleg Rumyantsev, Natalia Yakovenko and Tatjana Yakovleva-Tairova, the authors of this collection, hail from Poland, Italy, USA, Ukraine and Russia. They consider the military, political, social, and cultural context of the battle and also investigate its treatement in historical and literary writings from the early modern era to the present. They approach their topic from the point of view of various disciplines, traditions, and schools of thought. Their essays expand our understanding of the battle, its outcome and legacy in unexpected and historiographically productive ways.
description: di/segni, The Battle of Konotop 1659. Exploring alternatives in East European History
The scattered debris of the Magellanic Stream
Creators: name: Westmeier, T.
name: Koribalski, B. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Searching the HI Parkes All-Sky Survey (HIPASS) and its northern extension, we detected a population of very compact high-velocity clouds (HVCs) with similar velocities in the Galactic standard-of-rest frame which appear to be arranged in several filaments aligned with the nearby Magellanic Stream. A comparison with published OVI/CaII absorption and HI emission line measurements suggests that the HVCs are condensations within an extended and mainly ionised component of the Magellanic Stream. They coincide in position with a faint gas stream predicted in numerical simulations of the Magellanic Clouds by Gardiner & Noguchi (1996). Consequently, the Magellanic Stream could be much more extended than generally believed.
description: 5 pages, 4 figures, accepted for publication in MNRAS
La 'Cultura X'. Mercato, pop e tradizione. Juan Bonilla, Ray Loriga e Juan Manuel de Prada
Creators: name: Cattaneo, Simone
Publisher: name: di/segni
Year: 2013

description: Gli anni ’90 del XX secolo hanno segnato un punto di non ritorno per la società e le lettere spagnole: la piena integrazione alla contemporaneità ha portato con sé l’asservimento alle leggi di mercato e l’affermarsi di un narrare aperto all’ibridazione tra linguaggi, insofferente alle distinzioni tra alta cultura e spettacolo popolare. In questo volume si traccia un bilancio ragionato di tale passaggio, smontando fenomeni generazionali discutibili e facendo dialogare tradizione e pop, in un confronto che coinvolge le traiettorie letterarie di Ray Loriga, Juan Bonilla e Juan Manuel de Prada, emblematiche per il loro snodarsi tra questi due estremi alla ricerca di una prosa laconica come un verso di canzone rock o esuberante di metafore, nel segno di una metaletteratura ludica o raffinata, tra cinema, musica, televisione e barocchismo.
description: di/segni, La 'Cultura X'. Mercato, pop e tradizione. Juan Bonilla, Ray Loriga e Juan Manuel de Prada
Letter from Kathleen Raine to Percy and Elizabeth Jarrett, November 11, [1983]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: Skelton, Sylvia
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Jarrett, Percy W.
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Jarrett, Elizabeth
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this short letter, Raine gives Jarrett permission to proceed as he thinks is best with the sale of her "waste paper" to Irvine, and reflects on the literary journals.
Vieillir selon Flaubert
Creators: name: Nissim, Liana
Publisher: name: di/segni
Year: 2013

description: Cette étude, qui a été réalisée grâce à une bourse de recherche offerte par la Région Auvergne et l’Université Blaise Pascal de Clermont Ferrand, analyse le thème du vieillir dans l’oeuvre de Flaubert. Le processus du vieillir s’y configure selon plusieurs motifs complexes, capables de traduire des aspects très poignants de la vision du monde de l’auteur. L’idée du vieillir est chez Flaubert une pensée constante et incontournable, consubstantielle à la vie, soumise à la loi implacable de l’«infâme rétiaire », le Temps. Il ne reste donc qu’à prendre ses distances de la vie, de ce processus de déchéances et d’échecs, de l’inépuisable vieillissement au fond duquel il n’y a que le Néant ; il ne reste qu’à escamoter la vie en se réfugiant dans l’Art, en se contentant de vivre «encore pendant trois ou quatre livres ».
description: di/segni, Vieillir selon Flaubert
A Hydro-Particle-Mesh Code for Efficient and Rapid Simulations of the Intracluster Medium
Creators: name: He, Yizhou
name: Trac, Hy
name: Gnedin, Nickolay Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We introduce the cosmological HYPER code based on an innovative hydro-particle-mesh (HPM) algorithm for efficient and rapid simulations of gas and dark matter. For the HPM algorithm, we update the approach of Gnedin & Hui (1998) to expand the scope of its application from the lower-density intergalactic medium (IGM) to the higher-density intracluster medium (ICM). While the original algorithm tracks only one effective particle species, the updated version separately tracks the gas and dark matter particles as they do not exactly trace each other on small scales. For the approximate hydrodynamics solver, the pressure term in the gas equations of motion is calculated using robust physical models. In particular, we use a dark matter halo model, ICM pressure profile, and IGM temperature-density relation, all of which can be systematically varied for parameter-space studies. We show that the HYPER simulation results are in good agreement with the halo model expectations for the density, temperature, and pressure radial profiles. Simulated galaxy cluster scaling relations for Sunyaev-Zel'dovich (SZ) and X-ray observables are also in good agreement with mean predictions, with scatter comparable to that found in hydrodynamic simulations. HYPER also produces lightcone catalogs of dark matter halos and full-sky tomographic maps of the lensing convergence, SZ effect, and X-ray emission. These simulation products are useful for testing data analysis pipelines, generating training data for machine learning, understanding selection and systematic effects, and for interpreting astrophysical and cosmological constraints.
description: 24 pages, 14 figures
ALICIA KOZAMEH. ANTOLOGÍA PERSONAL
Creators: name: Semilla Durán, María A.
Publisher: name: di/segni
Year: 2020

description: Esta Antología personal de la escritora argentina Alicia Kozameh, precedida por un Estudio preliminar de la catedrática María A. Semilla Durán, tiene un doble objetivo: el de iniciar al lector en el conocimiento de una obra literaria personalísima por una parte; el de guiarlo en su lectura e interpretación de la misma por otra. Los textos así seleccionados están organizados cronológicamente, y constituyen un corte transversal de la obra total, que deja ver cada uno de los estratos que la componen. El volumen se prestigia con una reflexión inédita de la autora sobre la indefensión de la persona ante la escritura autobiográfica. El estudio preliminar que introduce el volumen acompaña el viaje del lector a través de los textos, analizando las secuencias seleccionadas y leyéndolas desde una perspectiva global, atenta a la evolución de la escritura al hilo del tiempo. Para completar la mirada crítica, incluimos al final un instrumento pedagógico destinado a los estudiantes que quisieran trabajar sobre las obras de Alicia Kozameh, consistente en una serie de orientaciones válidas para la indagación de su escritura.
description: di/segni, ALICIA KOZAMEH. ANTOLOGÍA PERSONAL
Communicating Medicine. British Medical Discourse in Eighteenth-Century Reference Works
Creators: name: Lonati, Elisabetta
Publisher: name: di/segni
Year: 2018

description: This study investigates eighteenth-century medical writing, particularly concerning the elaboration and the communication of medicine in such reference works as universal dictionaries of arts and sciences, medical dictionaries, and handbooks. Most of the vernacular texts under scrutiny here were issued in the second half of the century, a period in which the advancements in medical research, medical education and medical practice favoured the circulation of an expanding medical vocabulary and stimulated medical writing as a whole. A vast amount of reference works was produced for experts and non-experts alike: medical topics were common in social settings, in personal and communal letters, in specialised journals, in pamphlets and in magazines. All this unprecedented activity certainly contributed to the vernacularisation, and the dissemination of medicine in different kinds of works and different text types. The texts examined in the study are representative of their authors’ effort to expand medical knowledge and to define medicine as an independent science based on strict observation, as well as to establish intelligibility within and outside the disciplinary discourse community.
description: di/segni, Communicating Medicine. British Medical Discourse in Eighteenth-Century Reference Works
How could the replica method improve accuracy of performance assessment of channel coding?
Creators: name: Kabashima, Yoshiyuki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We explore the relation between the techniques of statistical mechanics and information theory for assessing the performance of channel coding. We base our study on a framework developed by Gallager in {\em IEEE Trans. Inform. Theory} {\bf 11}, 3 (1965), where the minimum decoding error probability is upper-bounded by an average of a generalized Chernoff's bound over a code ensemble. We show that the resulting bound in the framework can be directly assessed by the replica method, which has been developed in statistical mechanics of disordered systems, whereas in Gallager's original methodology further replacement by another bound utilizing Jensen's inequality is necessary. Our approach associates a seemingly {\em ad hoc} restriction with respect to an adjustable parameter for optimizing the bound with a phase transition between two replica symmetric solutions, and can improve the accuracy of performance assessments of general code ensembles including low density parity check codes, although its mathematical justification is still open.
description: 13 pages, 1 figure, submitted to the International Workshop on Statistical-Mechanical Informatics (IW-SMI2008), Sendai
Quark and lepton masses from top loops
Creators: name: Dobrescu, Bogdan A.
name: Fox, Patrick J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Assuming that the leptons and quarks other than top are massless at tree level, we show that their masses may be induced by loops involving the top quark. As a result, the generic features of the fermion mass spectrum arise from combinations of loop factors. Explicitly, we construct a renormalizable model involving a few new particles, which leads to 1-loop bottom and tau masses, a 2-loop charm mass, 3-loop muon and strange masses, and 4-loop masses for first generation fermions. This realistic pattern of masses does not require any symmetry to differentiate the three generations of fermions. The new particles may produce observable effects in future experiments searching for mu to e conversion in nuclei, rare meson decays, and other processes.
description: 29 pages; Introduction expanded, references added