cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electroweak Instantons, Axions, and the Cosmological Constant
Creators: name: McLerran, Larry
name: Pisarski, Robert D.
name: Skokov, Vladimir
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If there is explicit violation of baryon plus lepton number at some energy scale, then the electroweak theory depends upon a θ-angle. Due to a singular integration over small scale size instantons, this θ-dependence is sensitive to very high momentum scales. Assuming that there is no new physics between the electroweak and Planck scales, for an electroweak axion the energy difference between the vacuum at θ /= 0, and that at θ = 0, is of the correct order of magnitude to be the dark energy observed in the present epoch.
description: 6 pages, 1 figure; N_h is corrected; minor corrections in the text
What Does it Mean to Teach Biology Well? A Hermeneutic Inquiry
Creators: name: Pelech, Sharon
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education--Curriculum and Instruction
subject: Education--Sciences
subject: Education--Secondary
subject: Secondary Science
subject: Biology
subject: Teaching and Learning
subject: Hermeneutics
subject: Interpretive Inquiry
subject: Curriculum

description: This study is an interpretive inquiry into how students and teachers understand the question, “What does it mean to teach biology well?” It explores the participants’ experience of the biology classroom and how they navigate between the expectations of external factors, such as diploma examinations, post-secondary requirements, and the demands of the Alberta Education Program of Studies’ expectations of teaching through an inquiry-based focus. The study explores the tensions that the students and teachers experience as they navigate between the expectations for post-secondary education and the time constraints of covering the curriculum. Through a hermeneutic frame, some of the experiences and assumptions about understandings are explored in depth. The findings discuss teachers’ sense of conflict between wanting students to have an opportunity to explore the process and complexity of science with their sense of issues with time, expectations to cover an expansive curriculum and the expectations to prepare students for post-secondary science. This study unpacks these experiences through researching the historical arguments that teachers have inherited, exploring the continual stress of running out of time, and exploring how relationships was seen as the most essential component of teaching biology.
Il «Passamano per San Luca» a Bologna (Italia) tra rievocazione storica e didattica
Creators: name: Dondarini, Rolando
name: Borghi, Beatrice
name: Galletti, Filippo
Publisher: name: Her&Mus. Heritage & Museography
Year: 2020

description: L’articolo illustra l’esperienza della rievocazione storica denominata «Passamano per San Luca», che si svolge a Bologna (Italia) da sedici anni. Essa, organizzata e promossa dal Centro Internazionale di Didattica della Storia e del Patrimonio (DiPaSt) dell’Università di Bologna con la partecipazione attiva di un grande numero di studentesse e studenti di ogni ordine e grado della città e della sua provincia, ricorda un avvenimento accaduto il 17 ottobre 1677: era necessario costruire un portico che collegasse la città al santuario della Madonna di San Luca e l’unico modo per trasportare i materiali costruzione era passarsele di mano in mano creando una catena umana. Rievocare oggi quel gesto di solidarietà civica significa da parte delle scuole assumere un senso di responsabilità verso il bene, stimolando la sua conoscenza, tutela e valorizzazione. In questo modo, tutta la comunità cittadina viene coinvolta nella salvaguardia del bene e nella custodia della stessa cittadinanza.
description: Her&Mus. Heritage & Museography, Nº 20 (Año 2019). Recreación histórica, pasado y patrimonio
SS 433: The wiggle of the wind
Creators: name: Bowler, M. G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Balmer H alpha emission line in the stationary spectrum of SS 433 has a component originating in the wind above the accretion disk. The Doppler motion of this line is a blurred representation of the motion of the compact object accreting. I show how this may be understood in terms of emission lasting over a few days, like radiation from the jet bolides.
description: 4 pages, 3 figures. A coda to my circumbinary disk studies. To appear in A&A
Mapa de l’espoli del patrimoni historicoartístic a Catalunya (1983-2015): aproximació quantitativa i qualitativa
Creators: name: Campillo Quintana, Jordi
Publisher: name: Her&Mus. Heritage & Museography
Year: 2020

description: No hi ha dubte que l’espoli del patrimoni cultural ha estat i és una de les xacres de la societat. Cada vegada però, en som més conscients, i de resultes apareixen més publicacions que posen de manifest aquesta problemàtica. No obstant això, són escassos els estudis que inclouen dades quantitatives. En aquest article intentarem quantificar, en nombre, la repercussió de l’espoli del patrimoni cultural català, i per tal d’assolir-ho recorrerem a una font pràcticament inexplorada: les dades que genera la tasca policial. Una de les fonts quantitatives més objectives i de major qualitat són les denúncies policials, que tot i no estar exemptes d’imprecisions són, de ben segur, una de les eines que més s’hi aproxima. En aquest sentit, hem incorporat fonts qualitatives com les entrevistes, la premsa, entre d'altres, per tal de complementar, i en alguns casos ampliar, els fets coneguts. El creuament i anàlisi de les dades d’ambdues fonts ens ha permès contextualitzar els atemptats contra el patrimoni: els llocs on es produeixen, els tipus penals més habituals, etc. Això ens ha permès obtenir una aproximació numèrica de l’espoli historicoartístic a Catalunya, així com la seva dispersió territorial. Aquesta diagnosi quantitativa i territorial del fenomen pensem que hauria de contribuir a obrir un debat social sobre quines mesures s’haurien d’emprendre per garantir una protecció del patrimoni més eficient.
description: Her&Mus. Heritage & Museography, Nº 20 (Año 2019). Recreación histórica, pasado y patrimonio
De la educación a la mediación. Tensiones en torno a la situación de las educadoras y al trabajo con los públicos en museos y centros de arte
Creators: name: Arriaga, Amaia
Publisher: name: Her&Mus. Heritage & Museography
Year: 2020

description: El texto discute la irrupción del término “mediación” para nombrar las prácticas educativas en museos y centros de arte y se vincula con el giro educativo de las artes y el comisariado y su interés por desvincularse de los espacios y profesionales que tradicionalmente han desarrollado prácticas educativas. Se analizan así algunas de las tensiones a las que este fenómeno ha dado pie, especialmente respecto a la situación y el reconocimiento del trabajo de las educadoras de museo, abordando la cuestión de la precariedad laboral y la falta de valoración de la profesión. El artículo examina también el replanteamiento que busca apuntalar un cambio en la institución cultural, orientado a adquirir un compromiso real con su entorno y su público. De esta manera, en la segunda parte se reflexiona sobre las diferentes relaciones que las instituciones establecen con los públicos y las tensiones que surgen en estos procesos. Se defienden planteamientos que superen los enfoques de “inclusión” o “acceso” hacia otros que busquen la colaboración con los públicos. Se concluye abogando por la necesidad de alianzas entre profesionales (artistas, comisarios/as, educadoras, gestores/as) desde el reconocimiento y cuestionamiento de las relaciones desiguales de poder que se dan entre ellos, con el objetivo de desarrollar prácticas colaborativas con las audiencias que permitan repensar y redistribuir los modos y lugares en los que se elaboran y transmiten los saberes y prácticas culturales, desde un análisis y concienciación de las relaciones entre estos y el poder.
description: Her&Mus. Heritage & Museography, Nº 20 (Año 2019). Recreación histórica, pasado y patrimonio
The continuum discretized coupled-channels method and its applications
Creators: name: Yahiro, Masanobu
name: Ogata, Kazuyuki
name: Matsumoto, Takuma
name: Minomo, Kosho
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This is a review on recent developments of the continuum discretized coupled-channels method (CDCC) and its applications to nuclear physics, cosmology and astrophysics, and nuclear engineering. The theoretical foundation of CDCC is shown, and a microscopic reaction theory for nucleus-nucleus scattering is constructed as an underlying theory of CDCC. CDCC is then extended to treat Coulomb breakup and four-body breakup. We also propose a new theory that makes CDCC applicable to inclusive reactions
description: Submitted to Progress of Theoretical and Experimental Physics, 50 pages
Museografías imposibles. De la exposición de videoarte como problemática a la transformación del museo en plataforma de contenidos audiovisuales como solución
Creators: name: De La Torre Amerighi, Iván
Publisher: name: Her&Mus. Heritage & Museography
Year: 2020

description: La evaluación y análisis de No lo llames Performance / Don’t call it Performance (2003-2005) y de otras exposiciones internacionales de idéntica índole desde inicio del siglo XXI hasta nuestros días, como han podido ser Monocanal (2003), 40 Years videoart.de. Digital Heritage: Video Art in Germany from 1963 to the present (2006), Thirty Years of Chinese Contemporary Art-Moving Image in China (2011) o Moving Time: Video Art at 50, 1965-2015 (2015-16) ha permitido reflexionar sobre la posibilidad o imposibilidad, perceptiva y espacio-temporal, de enfrentar al visitante con una exposición colectiva y monográfica de video arte o video-performance siguiendo parámetros museográficos establecidos para otras expresiones artísticas. Los fracasos y fracturas percibidas en el encuentro entre medios audiovisuales y la exposición como cauce no natural para su visibilización conllevan poner en cuestión las opciones y posibilidades que tiene la institución museística para proyectar y difundir colecciones y contenidos audiovisuales, evaluando como solución su posible transformación en plataforma de difusión de los mismos, entre una nueva clase de espectadores que deben ser tratados ya como clientes-consumidores.
description: Her&Mus. Heritage & Museography, Nº 20 (Año 2019). Recreación histórica, pasado y patrimonio
Poetry after 9/11 : constructing the memory of crisis
Creators: name: Luger, Moberley
Publisher: name: University of British Columbia
Year: 2010

description: My dissertation examines the cultural functions of poetry in the aftermath of the September 11, 2001 terrorist attacks on the United States. After 9/11, poems could be found in many and unexpected places: they were posted on the internet in the tens of thousands; published in newspapers, magazines, and single-author books; read aloud on television and on radio and collected in at least ten anthologies. Seeking to explain this surge in poetry’s popularity, many critics have discussed the genre’s ability to provide comfort. I suggest that poems after 9/11 be seen also as examples of memory scholar Marita Sturken’s “technologies of memory”: politically-charged objects through which memories are shared, produced, and given meaning. I argue that poetry can be held accountable for its production of the memory of 9/11 and that it can be investigated for the multiple functions it serves in the aftermath of crisis. Using the resources of memory studies, and of cultural studies of poetry, my dissertation makes a case for poetry’s political, memorial, witness, and public-discourse functions. My chapters explore (1) the popularity of W.H. Auden’s “September 1, 1939” after 9/11 and the contemporary politics of the poem’s circulation; (2) the memorial function of poetry as that function is negotiated in a text installation in the newly-built 7 World Trade Centre; (3) the function of poetry as witness and the way the mediation of 9/11 invites a reconsideration of the witness position itself; and (4) the public-discourse function of poetry found, for example, at poetry.com, where 55, 031 people have uploaded their 9/11 poems. By studying poetry’s national presence after 9/11, I challenge the idea, dominant especially since the mid-twentieth century, that poetry is a marginal genre in literature and culture. I also challenge the mid-twentieth century notion that poetry’s value can best be found in its timelessness. Poetry had many timely functions after 9/11 and can be read as a set of discursive practices integrated in our everyday lives.
Patrimonio paleontológico y marca territorio: Cuenca y sus dinosaurios
Creators: name: Marcos-Fernández, Fátima
name: Martínez Bueno, Sonia
name: Ortega, Francisco
Publisher: name: Her&Mus. Heritage & Museography
Year: 2020

description: Los dinosaurios forman parte del patrimonio paleontológico de la provincia de Cuenca. Su dimensión social y la atracción que ejercen sobre el público general ha promovido la utilización de este patrimonio paleontológico en la creación de una marca territorio que permita identificar y diferenciar un destino turístico. Para ello se realizó una aproximación al concepto de marca territorio y a su importancia estratégica dentro del marketing turístico y se constató la repercusión mediática de Concavenator corcovatus, una especie por ahora exclusiva de Cuenca y basada en uno de los ejemplares singulares extraídos en el yacimiento de Las Hoyas (Cretácico Inferior. La Cierva, Cuenca). A partir de ahí, se suscita una reflexión sobre cómo se está aprovechando la dimensión social de los dinosaurios y la figura de Concavenator para identificar dos elementos turísticos de relevancia: el Museo de Paleontología de Castilla-La Mancha y la Ruta de los dinosaurios de Cuenca. En la actualidad, la imagen que un espacio geográfico transmite a través de su marca es determinante para posicionarlo como un potencial destino turístico y una marca territorio idónea y pertinente, con una imagen positiva, es un activo intangible capaz de proporcionar una ventaja competitiva y contribuir al desarrollo sostenible de una zona. En Cuenca hay dinosaurios, un elemento patrimonial que, a través de su presencia en la marca de los dos productos turísticos de relevancia citados, puede ser el vehículo ideal para aportar el valor añadido que favorezca la singularidad y promueva la diferenciación en un entorno cada vez más homogéneo.
description: Her&Mus. Heritage & Museography, Núm. 20 (Any 2019). Recreació histórica, passat i patrimoni
title: 3D Printing of Activated Carbon and Exemplary Application as Adsorbent in the Electric Swing Adsorption
Creators: name: Steldinger, Hendryk
Publisher: name: UNSPECIFIED
Year: 2020

description: Due to its tunable porosity and chemical versatility, activated carbon is one of the most widespread porous materials in industry used in applications such as adsorption and catalysis. Nevertheless, commercially available activated carbons suffer from low thermal and electric conductivity in the bulk, abrasion, and undeﬁned bed porosity, since they are provided in the form of powders, pellets, or spherical particles. These obstacles could be overcome through the free design offered by 3D printing. However, present methods for the 3D printing of carbon either lack design freedom of the printed object or fail to introduce microporosity. In this work, a novel method for the 3D printing of carbon was developed. The method is based on lithographic 3D printing of a porous polymer, which is then transformed into activated carbon by a thermal treatment. Through the implementation of porogen templating into the printing process, meso- and macropores were introduced in the polymer precursor. In an optimized oxidation and pyrolysis procedure, the macrostructure and templated pores were retained and an additional fraction of micropores was introduced. Using CO2 activation the pore size was tailored and the speciﬁc surface area and pore volume increased to 2213 m²/g and 1.68 ml/g (QSDFT), respectively. These values are similar to those presented for activated carbons. Mechanical stability was maintained throughout the process. Through upscaling, activated carbon open-cellular monolithic structures of 40 mm in length and 20 mm in diameter were created. In an electric swing adsorption process, they exhibited a much better thermal and electric conductivity than a carbon pellet bed. Although the pelletized carbons showed a higher adsorption capacity because of a more densely packed bed, the monoliths could be regenerated much faster, due to their continuous macrostructure. The unique design ﬂexibility of 3D printed carbons in combination with their top-notch porous properties will contribute to the optimization of industrial processes that rely on the use of activated carbons in the ﬁelds of adsorption, catalysis and energy application.
Next Generation Literary Machines: The “Dynamic Network Aesthetic” of Contemporary Poetry Generators
Creators: name: Dupej, Holly
Publisher: name: Graduate Studies
Year: 2012
Subjects: Literature--English

description: This dissertation investigates the current state of digital poetry generators. The study argues that today’s poetry programs embody a new stage distinct from second- generation digital literature. The new stage projects a “dynamic network aesthetic,” reflective of four trends in Web 2.0 cultural production: the potential for mass aggregation; the adoption of participatory platforms; the instability of textual material; and the unpredictability of individual actors. The chapters interrogate the ways in which the four characteristics emerge in three categories of poetry generators: programs that manipulate user input; programs that manipulate Internet text; and programs that generate autonomous content. Corresponding with the three categories, three theorists of the machine inform the discussion. Donna Haraway, Jean Baudrillard, and Gilles Deleuze each provide apt approaches to twenty-first-century technology. However, each theorist also demonstrates the ways in which recent models of the machine do not yet fully account for the “dynamic network aesthetic” of the Internet era. In addition to the theoretical discussion, each chapter addresses the design and output of eight poetry generators. The readings suggest that poetry generators, like contemporary technologies in general, advance towards increasingly autonomous cognitive abilities. Emphasizing the cultural value and literary merit of poetry generators, the discussion aims to validate poetry generators’ place in literary studies, in addition to demonstrating a strong connection between contemporary cultural trends and current poetic practice. The dissertation concludes by imagining a potential field of study dedicated to poetry generators. The conclusion calls for further investigations of a “dynamic network aesthetic,” and foregrounds the need to consider future literary machines.
A Storm in a "T" Cup
Creators: name: Barr, Alan J.
name: Khoo, Teng Jian
name: Konar, Partha
name: Kong, Kyoungchul
name: Lester, Christopher G.
name: Matchev, Konstantin T.
name: Park, Myeonghun
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We revisit the process of transversification and agglomeration of particle momenta that are often performed in analyses at hadron colliders, and show that many of the existing mass-measurement variables proposed for hadron colliders are far more closely related to each other than is widely appreciated, and indeed can all be viewed as a common mass bound specialized for a variety of purposes.
description: 3 pages, 2 figures, presented by K.C. Kong at the 19th Particles and Nuclei International Conference, PANIC 2011, MIT, Cambridge, MA (July 24-29, 2011)
The role of colonic goblet cells in host defense against attaching and effacing bacterial pathogens
Creators: name: Bergstrom, Kirk S. B.
Publisher: name: University of British Columbia
Year: 2011

description: The non-invasive attaching and effacing (A/E) pathogens Enteropathogenic and Enterohemorrhagic Escherichia coli (EPEC and EHEC, respectively) are a prominent subgroup of diarrheagenic E. coli, and remain an important cause of morbidity and mortality worldwide. A/E pathogens intimately attach to the surface of intestinal epithelial cells, and efface or destroy their microvilli. The intestinal epithelium is the first line of defense against A/E and all pathogens, and evidence is implicating epithelial secretory cells as playing a key role in this regard. Goblet cells are specialized secretory epithelial cells that are the sole producers of the mucus barrier lining the intestinal tract through the release of the polymeric Muc2 mucin. Goblet cells also secrete the small peptide Resistin-like Molecule-{beta} (RELMβ), which plays a direct role in host defense against parasitic helminths. Despite the abundance of which these molecules are released, little is known of their role in host-protection against A/E pathogens. I hypothesized that goblet cells play a critical role in host defense against A/E bacteria by secretion of Muc2/mucus and RELMβ into the intestinal tract. Using Citrobacter rodentium, a murine A/E pathogen that is an established model of EPEC and EHEC, my results demonstrate that goblet cells are a critical component of innate host-defense against an A/E pathogen. Studies with Muc2⁻/⁻ mice show that Muc2/mucus production was critical for limiting luminal burdens, and for flushing away pathogenic bacteria as well as commensal bacteria from the mucosa. Moreover, RELMβ was highly induced and secreted into the lumen during the first week of infection. Studies with Retnlb⁻/⁻ mice demonstrated that RELMβ production limited cecal burdens, deep penetration of colonic crypts, and severe inflammatory damage following infection. Lastly, adaptive immunity plays a role in modulating goblet cell function, by promoting a down-regulation of goblet cell-specific gene expression and protein production, including Muc2. This effect appears to reflect a generalized adaptive immunity-mediated epithelial proliferative response and is associated with clearance of surface-associated pathogens. Thus, goblet cells are critical for managing infection by an A/E bacterial pathogen. These studies highlight a novel and previously unappreciated function of goblet cells in host defense against enteric bacterial infection.
Large scale environments of z<0.4 active galaxies
Creators: name: Lietzen, H.
name: Heinämäki, P.
name: Nurmi, P.
name: Liivamägi, L. J.
name: Saar, E.
name: Tago, E.
name: Takalo, L. O.
name: Einasto, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Properties of galaxies depend on their large-scale environment. As the influence of active galactic nuclei (AGN) in galaxy evolution is becoming more evident, their large scale environments may help us understand the evolutionary processes leading to activity. The effect of activity can be seen particularly by showing if different types of active galaxies are formed by similar mechanisms. Our aim is to study the supercluster-scale environments of active galaxies up to redshift 0.4. Our data includes quasars, BL Lac objects, Seyfert and radio galaxies. We use a three-dimensional low-resolution luminosity-density field constructed of a sample of luminous red galaxies in the seventh data release of the Sloan Digital Sky Survey. We calculate the average density of this field in a volume of a 3\,$h^{-1}$Mpc sphere around each AGN for estimating the environmental density levels of different types of AGN. This analysis gives us the distribution of AGN in the global environment of superclusters, filaments, and voids. Our results show that while radio-quiet quasars and Seyfert galaxies are mostly located in low-density regions, radio galaxies have higher environmental densities. BL Lac objects usually have low-density environments, but some of them are also in very high density regions. Our results give support to the theory of galaxy evolution where galaxies are affected by two modes of AGN feedback: quasar mode that turns a blue star-forming galaxy into a red and dead one, and radio mode that regulates the growth of massive elliptical galaxies. We conclude that quasars are in lower density environments than radio galaxies most likely because the galaxies in rich environments have evolved to a state suitable for radio-loud activity earlier. Galaxies in poor environment have evolved slower, and are still going through the earlier quasar mode feedback in galaxy evolution.
description: 11 pages, 5 figures; Accepted for publication in A&A, language corrected
Parnopes Latreille 1797
Creators: name: Paukkunen, Juho
name: Rosa, Paolo
name: Soon, Villu
name: Johansson, Niklas
name: Ødegaard, Frode
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Chrysididae
Parnopes

description: 14. Genus Parnopes Latreille, 1797
Parnopes Latreille 1797: 126. Type species: Chrysis carnea Fabricius, 1775 [= Parnopes grandior (Pallas, 1771)], by monotypy.
description: Published as part of Paukkunen, Juho, Rosa, Paolo, Soon, Villu, Johansson, Niklas & Ødegaard, Frode, 2014, Faunistic review of the cuckoo wasps of Fennoscandia, Denmark and the Baltic countries (Hymenoptera: Chrysididae), pp. 1-67 in Zootaxa 3864 (1) on page 50, DOI: 10.11646/zootaxa.3864.1.1, http://zenodo.org/record/4930433
Preferencias ¡Toc, toc, toc! El cómic llama a la puerta de los museos de arte
Creators: name: Mateos Rusillo, Santos M.
Publisher: name: Her&Mus. Heritage & Museography
Year: 2020

description: El cómic ha experimentado un boom durante los últimos años, una popularidad que ha empezado a filtrase en los museos de arte. Como una manifestación artística más, se han ido celebrando muestras temporales tras la pionera exposición Bande Dessinée et Figuration Narrative organizada en el Musée des Arts Décoratifs de París (1967); e incluso algunos museos han ido más allá del papel de expositor, convirtiéndose en productores siguiendo el ejemplo iniciado por el Musée du Louvre con Période Glaciaire de Nicolas de Crécy (2005). Un proceso natural que ha llegado a las instituciones museísticas españolas, que ya se muestran permeables al cómic. El artículo, centrado en el escenario museístico español, presenta y analiza el caso pionero del Museo Nacional de Cerámica y Artes Suntuarias «González Martí» de Valencia y el especial que el TBO dedicó al mundo de los museos en 1969, junto a las aproximaciones al cómic que otros museos de arte españoles han realizado en los últimos años. Ejemplos que demuestran que el cómic está golpeando con fuerza la puerta de los museos de arte españoles.
description: Her&Mus. Heritage & Museography, Núm. 20 (Any 2019). Recreació histórica, passat i patrimoni
Metallicity distribution functions of the old populations of the Magellanic Clouds from RR Lyrae stars
Creators: name: Haschke, Raoul
name: Grebel, Eva K.
name: Duffau, Sonia
name: Jin, Shoko
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first metallicity distribution functions of the old field populations in the Magellanic Clouds. Our metallicities are based on the Fourier decomposition of Type ab RR Lyrae light curves from the Optical Gravitational Lensing Experiment (OGLE-III). On the metallicity scale of Zinn & West; we find a mean metallicity of [Fe/H] = -1.50 +/- 0.24 dex based on 16776 RR Lyrae stars in the Large Magellanic Cloud (LMC). For the Small Magellanic Cloud (SMC) we obtain -1.70 +/- 0.27 dex based on 1831 RR Lyrae stars. These uncertainties represent the intrinsic spread in the population rather than the standard deviation of the mean. Our results are in good agreement with the few existing spectroscopic metallicity determinations for LMC RR Lyrae stars from the literature. For both the LMC and the SMC the metallicity spread exceeds 1 dex in [Fe/H]. The distribution of metallicities in both Clouds is very uniform, and no significant metallicity gradient is detectable. We also do not find any pronounced populations of extremely metal-poor RR Lyrae candidates with metallicities well below -2 dex, although we need to caution that the photometric method used may overestimate the metallicities of metal-deficient stars. Moreover, because of stellar evolutionary effects one does not expect to observe many RR Lyrae stars among very metal-poor horizontal branch stars. We suggest that the Magellanic Clouds experienced fairly rapid and efficient early enrichment involving pre-enriched gas as well as possibly gas infall, while metal loss through outflows does not seem to have played a significant role. Moreover we suggest that the differences in the metallicities of the old population of LMC and SMC make an origin from a single, common progenitor unlikely, unless the separation happened very early on.
description: Accepted for publication in AJ, 12 pages, 13 figures
Implementing Molecular Hydrogen in Hydrodynamic Simulations of Galaxy Formation
Creators: name: Christensen, Charlotte
name: Quinn, Thomas
name: Governato, Fabio
name: Stilp, Adrienne
name: Shen, Sijing
name: Wadsley, James
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Motivated by the observed connection between molecular hydrogen (H2) and star formation, we present a method for tracking the non-equilibrium abundance and cooling processes of H2 and H2-based star formation in Smoothed Particle Hydrodynamic simulations. The local abundances of H2 are calculated by integrating over the hydrogen chemical network. This calculation includes the gas-phase and dust grain formation of H2, shielding of HI and H2, and photodissociation of H2 by Lyman-Werner radiation from nearby stellar populations. Because this model does not assume equilibrium abundances, it is particularly well suited for simulations that model low-metallicity environments, such as dwarf galaxies and the early Universe. We further introduce an explicit link between star formation and local H2 abundance. This link limits star formation to "star-forming regions," represented by areas with abundant H2. With this implementation, we determine the effect of H2 on star formation in a cosmological simulation of a dwarf galaxy. This simulation is the first cosmological simulation with non-equilibrium H2 abundances to be integrated to a redshift of zero or to include efficient SN feedback. We find that our simulations are consistent with the observed Tully-Fisher, global Kennicutt-Schmidt, and resolved Kennicutt-Schmidt relations. We find that the inclusion of shielding of both the atomic and molecular hydrogen and, to a lesser extent, the additional cooling from H2 at temperatures between 200 and 5000 K increases the amount of cold gas in the galaxies. The changes to the ISM result in an increased amount of cold, dense gas in the disk of the galaxy and the formation of a clumpier interstellar media (ISM). The explicit link between star formation and H2 and the clumpier ISM results in a bluer galaxy with a greater spatial distribution of star formation at a redshift of zero. (abridged)
description: 20 pages, 15 figures, resubmitted to MNRAS following referee report
Performance of Steam Assisted Gravity Drainage in Thin Oil Sand Reservoirs: Well Pair Configuration
Creators: name: Zohrehvand, Shiva
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering
subject: Engineering--Petroleum
subject: SAGD
subject: Oil Sand
subject: Thin Reservoirs

description: Success of Steam Assisted Gravity Drainage (SAGD) depends on reservoir properties and operational parameters. Here, both areas are targeted and performance of SAGD in thin oil sand reservoirs with changing the well configuration is studied. Specifically, the influence of the injection and production wellpair configuration as well as the number of injector wells in a homogeneous formation with thicknesses of 5, 7, and 10m were investigated. The wellpairs were relocated to make different patterns where the spacing between injection and production wells was changed. SAGD performance was assessed numerically and the cumulative steam oil ratio, oil production, heat loss, and oil recovery factor were compared. The results suggest that the horizontal and vertical distances between injectors and the producer well, their locations from over or underburden and their alignments affect the performance of SAGD operation. The results also show that addition of an offset injector well can be beneficial.
title: Gerhard Herzberg (1904-), biography
Creators: name: (:Unav)
Year: 2019
Subjects: subject: Herzberg, Gerhard
subject: Herzberg, Gerhard
subject: biography
subject: biographie

description: ATT PAUL PAQUET' handwritten on top of first page
description: ATT PAUL PAQUET' écrit à la main en haut de la première page
Focusing through random media: eigenchannel participation number and intensity correlation
Creators: name: Davy, Matthieu
name: Shi, Zhou
name: Genack, Azriel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Using random matrix calculations, we show that, the contrast between maximally focused intensity through random media and the background of the transmitted speckle pattern for diffusive waves is, μ_N =1 +N_{eff}, where N eff is the eigenchannel participation number for the transmission matrix. For diffusive waves, N_{eff} is the inverse of the degree of intensity correlation, κ. The profile of the focused beam relative to the ensemble average intensity is expressed in terms of the square of the normalized spatial field correlation function, F(Δr), and κ. These results are demonstrated in microwaves experiments and provide the parameters for optimal focusing and the limits of imaging.
Preventative Education for Indigenous Girls Vulnerable to the Sex Trade
Creators: name: Louie, Dustin
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Education--Social Sciences
subject: Indigenous Education
subject: Sex Trade
subject: Decolonizing
subject: Preventative Education
subject: Indigenous Gangs

description: Indigenous women in Canada are drastically overrepresented in the sex trade (Cler-Cunningham & Christensen, 2001; NWAC, 2014; Saewyc, MacKay, Anderson & Drozda; Sethi, 2005; Totten, 2009), while the phenomenon is simultaneously overlooked in academia. This dissertation investigated the potential of formal education systems in preventative education for Indigenous girls vulnerable to the sex trade. Five Indigenous sex trade survivors and nineteen service providers from a partner organization in Prince Albert, Saskatchewan, participated in individual unstructured interviews to collaborate in unearthing the life experiences creating vulnerability, methods of recruitment, and preventative education recommendations. The case study methods of this dissertation are steeped in the principles of Linda Tuhiwai Smith’s Decolonizing Methodologies (1999). Based on interviews, organizational documents, and scant academic literature, the life experiences creating vulnerability to the sex trade for Indigenous girls were found to be: sexual abuse, transition from reserves, prison systems, violentization, substance abuse, family disorganization/out of home placements, family in the sex trade, poverty, and poor relationship with services. Indigenous girls are recruited into the sex trade by: gang recruitment, boyfriends, female recruitment, family recruitment, meeting basic needs, substance abuse, social media, and reserve recruitment. Prevention education will be targeted to Indigenous girls from 7-13 years old in on-reserve schools. A combination of teachers, female community members, elders, role models, and service providers could teach preventative education using love, engagement, patience, and understanding. Entire families should be included in the education process as much as possible, which should apply local cultural education and ways of knowing as much as possible.
Isocurvature modes and Baryon Acoustic Oscillations II: gains from combining CMB and Large Scale Structure
Creators: name: Carbone, Carmelita
name: Mangilli, Anna
name: Verde, Licia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider cosmological parameters estimation in the presence of a non-zero isocurvature contribution in the primordial perturbations. A previous analysis showed that even a tiny amount of isocurvature perturbation, if not accounted for, could affect standard rulers calibration from Cosmic Microwave Background observations such as those provided by the Planck mission, affect Baryon Acoustic Oscillations interpretation and introduce biases in the recovered dark energy properties that are larger than forecasted statistical errors from future surveys. Extending on this work, here we adopt a general fiducial cosmology which includes a varying dark energy equation of state parameter and curvature. Beside Baryon Acoustic Oscillations measurements, we include the information from the shape of the galaxy power spectrum and consider a joint analysis of a Planck-like Cosmic Microwave Background probe and a future, space-based, Large Scale Structure probe not too dissimilar from recently proposed surveys. We find that this allows one to break the degeneracies that affect the Cosmic Microwave Background and Baryon Acoustic Oscillations combination. As a result, most of the cosmological parameter systematic biases arising from an incorrect assumption on the isocurvature fraction parameter $f_{iso}$, become negligible with respect to the statistical errors. We find that the Cosmic Microwave Background and Large Scale Structure combination gives a statistical error $σ(f_{iso}) \sim 0.008$, even when curvature and a varying dark energy equation of state are included, which is smaller than the error obtained from Cosmic Microwave Background alone when flatness and cosmological constant are assumed. These results confirm the synergy and complementarity between Cosmic Microwave Background and Large Scale Structure, and the great potential of future and planned galaxy surveys.
description: 21 pages, 2 figures, 2 tables, matches the JCAP published version
Methodological approach to know the state of the art and the advances of data sharing in education
Creators: name: Alonso-Arroyo, Adolfo
name: Sixto-Costoya, Andrea
name: Valderrama-Zurián, Juan Carlos
name: Lucas-Domínguez, Rut
name: Aguilar-Moya, Remedios
name: Chiva-Sanchis, Inmaculada
name: Aleixandre-Benavent, Rafael
Publisher: name: Zenodo
Year: 2023

description: The value of data is crucial in education, as education is seen as the basis for socio-economic progress. Education is one of the fields where the use of data should be maximised. Our objective is to provide knowledge on the current state of the art of beliefs, problems, experiences, curation and re-use of data in Education sciences.
The long term optical behaviour of helium accreting AM CVn binaries
Creators: name: Ramsay, Gavin
name: Barclay, Thomas
name: Steeghs, Danny
name: Wheatley, Peter J.
name: Hakala, Pasi
name: Kotko, Iwona
name: Rosen, Simon
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of a two and a half year optical photometric monitoring programme covering 16 AM CVn binaries using the Liverpool Telescope on La Palma. We detected outbursts in seven systems, one of which (SDSS J0129) was seen in outburst for the first time. Our study coupled with existing data shows that ~1/3 of these helium-rich accreting compact binaries show outbursts. The orbital period of the outbursting systems lie in the range 24-44 mins and is remarkably consistent with disk-instability predictions. The characteristics of the outbursts seem to be broadly correlated with their orbital period (and hence mass transfer rate). Systems which have short periods (<30 min) tend to exhibit outbursts lasting 1--2 weeks and often show a distinct `dip' in flux shortly after the on-set of the burst. We explore the nature of these dips which are also seen in the near-UV. The longer period bursters show higher amplitude events (5 mag) that can last several months. We have made simulations to estimate how many outbursts we are likely to have missed.
description: Accepted for publication in MNRAS
Characterizing Coherent Structures within the Lower Log Region of the Atmospheric Boundary Layer
Creators: name: Rosi, Giuseppe Antonio
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Atmospheric Sciences
subject: FOS: Earth and related environmental sciences
subject: Engineering--Aerospace
subject: Engineering--Mechanical
subject: Turbulent Coherent Structures
subject: Hairpin Vortices
subject: Atmospheric Boundary Layers

description: This thesis presents preliminary steps towards the quantification of turbulent coherent structures within atmospheric boundary layers (ABLs). A conditional analysis that quantifies the centre height and circulation of ABL spanwise vortices is performed to evaluate ABL hairpin-vortex organization and structure. The analysis determined that the height of spanwise vortices follows a Rayleigh distribution with a mean of 0.065δ (δ ≡ ABL thickness). Circulation followed a bimodal distribution about Uδ = 0 (U ≡ freestream velocity), with a positive peak 80% − 100% the height of the negative peak. The tall positive peak indicates an increased presence of retrograde vortices when comparing to low Reynolds-number studies, demonstrating that the idealized model is not representative of ABL hairpin vortices. Finally, preliminary results from a large-scale particle tracking velocimetry system are presented and future steps towards the system’s further development are discussed.
The Proposed Chentikheda Dam: Policy Control, Social Justice, and the Adivasi Experience of Pre-Displacement
Creators: name: Walker, Melanie
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Anthropology--Cultural
subject: History--Asia, Australia, and Oceania
subject: Human Development
subject: India
subject: Dams
subject: Adivasi
subject: Pre-Displacement
subject: Temporal Research

description: In the 20th century, development encapsulated power through industrialization projects, such as dams; this was especially true in India. India is still the largest country proponent of dam building, displacing millions of Adivasis, India’s indigenous, causing an increase in poverty and a decrease in livelihood; this is well documented within a post-displacement context. However, more pre-displacement research is required in India. This ethnographic study took place in India at the location of a proposed dam. Policy control, social justice, and the Adivasi experience of pre-displacement were examined. Locals are learning about displacement through a confusing and emotive experience due to a lack of policy control, yet show a low level of activism due to government power, Adivasi biases, and complacency. Additionally, locals are willing to accept the dam through a local understanding of social justice. It is suggested that pre-displacement research can inform civil society, providing evidence for advocating intermediaries.
Cell-to-cell interactions in EML cell differentiation: The role of diversity and heterogeneity in cell populations
Creators: name: Gomez-Castano, Ivan
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Biology--Cell
subject: heterogeneity
subject: Differentiation
subject: Myeloid

description: The differentiation of hematopoietic stem cells to mature cell types is a multistep, branching process that generates the various cell types of the entire blood system. Our laboratory and others recently found that the heterogeneity of cell phenotypes that is present even in a clonal population of nominally identical cells plays a central role in cell fate choice and commitment of multi-potent progenitor cells. In this project I analyzed the precise dynamics of such cell population heterogeneity during differentiation and asked whether there is a specific heterotypic communication between the cells given that individual cells exhibit distinct behaviors. For this purpose I examined cell fate commitment of the hematopoietic progenitor cell line EML into the myeloid lineage at single-cell resolution using flow cytometry to monitor the induction of the differentiation marker, CD11. First I found that individual EML cells of a clonal cell population begin the differentiation process at disparate time points despite the simultaneous stimulation of differentiation and the uniformity of the culture environment. This asynchrony suggests an intrinsic heterogeneity also with respect to the response kinetics which further increases the diversity of the cells. Specifically, dissection of this differentiation process along the CD11b axis revealed that the differentiating signal led to a splitting of the uniform population into three discrete subpopulations at an intermediate stage. Second, I found that all three subpopulations were necessary to sustain a maximal differentiation rate of the entire population. Thus these subpopulations do not act independently but instead, communicate with each other. I determined that this communication is mediated via soluble signals and that it significantly affected the global differentiation kinetics of population. Finally, I have also begun to identify the nature of the soluble factor that mediates this interaction and discovered that production of IFN-γ during myeloid differentiation accelerates the process. These observations indicate that differentiation of a uniform cell population of cells from a precursor state to a mature state involves a non-cell-autonomous behavior that is mediated by secreted factors.
Evolución de la literatura en Trabajo Social, Adicciones y Salud Mental
Creators: name: Vidal-Infer, Antonio
name: Sixto-Costoya, Andrea
name: Lucas-Domínguez, Rut
name: Rius-Leiva, Cristina
name: Bueno-Cañigral, Francisco
name: Agulló-Calatayud, Víctor
Publisher: name: Zenodo
Year: 2023

description: Históricamente, el trabajo social (TS) en salud mental y adicciones se centró en el trabajo dentro de equipos clínicos en entornos comunitarios o de hospitalización en el contexto del modelo biomédico predominante. Actualmente, está constatada la necesidad de cubrir el aspecto social que rodea a cualquier problema de salud, incluida la mental y los problemas de adicciones.
Gluon polarization in the proton
Creators: name: Bass, Steven D.
name: Casey, Andrew
name: Thomas, Anthony W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We combine heavy-quark renormalization group arguments with our understanding of the nucleon's wavefunction to deduce a bound on the gluon polarization Delta g in the proton. The bound is consistent with the values extracted from spin experiments at COMPASS and RHIC.
description: 4 pages