cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
69745: Balliol's War memorial book
Creators: name: Project Team, Oxford At War
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: This memorial book includes potted biographies of each of the Balliol men who served in the First World War, including Raymond Asquith, son of the former UK Prime Minister, Right Hon H. H. Asquith.
Harmonium as a laboratory for mathematical chemistry
Creators: name: Ebrahimi-Fard, Kurusch
name: Gracia-Bondia, Jose M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Thanks to an algebraic duality property of reduced states, the Schmidt best approximation theorems have important corollaries in the rigorous theory of two-electron moleculae. In turn, the "harmonium mode" or "Moshinsky atom" constitutes a non-trivial laboratory bench for energy functionals proposed over the years (1964--today), purporting to recover the full ground state of the system from knowledge of the reduced 1-body matrix. That model is usually regarded as solvable, but some important aspects of it, in particular the exact energy and full state functionals ---unraveling the "phase dilemma" for the system--- had not been calculated heretofore. The solution is made plain here by working with Wigner quasiprobabilities on phase space. It allows in principle for a thorough discussion of the (de)merits of several approximate functionals popular in the theoretical chemical physics literature. We focus on Gill's "Wigner intracule" method for the correlation energy.
description: updated version
Repulsive Casimir forces with finite-thickness slabs
Creators: name: Zhao, R.
name: Koschny, Th.
name: Economou, E. N.
name: Soukoulis, C. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use the extended Lifshitz theory to study the behaviors of the Casimir forces between finite-thickness effective medium slabs. We first study the interaction between a semi-infinite Drude metal and a finite-thickness magnetic slab with or without substrate. For no substrate, the large distance $d$ dependence of the force is repulsive and goes as $1/d^5$; for the Drude metal substrate, a stable equilibrium point appears at an intermediate distance which can be tuned by the thickness of the slab. We then study the interaction between two identical chiral metamaterial slabs with and without substrate. For no substrate, the finite thickness of the slabs $D$ does not influence significantly the repulsive character of the force at short distances, while the attractive character at large distances becomes weaker and behaves as $1/d^6$; for the Drude metal substrate, the finite thickness of the slabs $D$ does not influence the repulsive force too much at short distances until $D=0.05λ_0$.
description: 7 pages, 2 figures, submitted to PRB; http://link.aps.org/doi/10.1103/PhysRevB.83.075108
Low-energy Observables and General Gauge Mediation in the MSSM and NMSSM
Creators: name: Thalapillil, Arun M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study constraints on the general gauge mediation (GGM) parameter space arising from low-energy observables in the MSSM and NMSSM. Specifically, we look at the dependence of the spectra and observables on the correlation function ratios in the hidden sector where supersymmetry is presumably broken. Since these ratios are not a priori constrained by theory, current results from the muon anomalous magnetic moment and flavor physics can potentially provide valuable intuition about allowed possibilities. It is found that the muon anomalous magnetic moment and flavor-physics observables place significant constraints on the GGM parameter space with distinct dependences on the hidden sector correlation function ratios. The particle spectra arising in GGM, with the possibility of different correlation function ratios, is contrasted with common intuition from regular gauge mediation (RGM) schemes (where the ratios are always fixed). Comments are made on precision gauge coupling unification, topography of the NLSP space, correlations of the muon anomalous magnetic moment with other observables, and approximate scaling relations in sparticle masses with respect to the high-scale correlation function ratios.
description: 43 pages, 16 figures. Typos corrected, updated references, acknowledgements and minor changes in exposition
Large-Theta(13) Perturbation Theory of Neutrino Oscillation for Long-Baseline Experiments
Creators: name: Asano, Katsuhiro
name: Minakata, Hisakazu
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Cervera et al. formula, the best known approximate formula of neutrino oscillation probability for long-baseline experiments, can be regarded as a second-order perturbative formula with small expansion parameter epsilon \equiv Delta m^2_{21} / Delta m^2_{31} \simeq 0.03 under the assumption s_{13} \simeq epsilon. If theta_{13} is large, as suggested by a candidate nu_{e} event at T2K as well as the recent global analyses, higher order corrections of s_{13} to the formula would be needed for better accuracy. We compute the corrections systematically by formulating a perturbative framework by taking theta_{13} as s_{13} \sim \sqrt{epsilon} \simeq 0.18, which guarantees its validity in a wide range of theta_{13} below the Chooz limit. We show on general ground that the correction terms must be of order epsilon^2. Yet, they nicely fill the mismatch between the approximate and the exact formulas at low energies and relatively long baselines. General theorems are derived which serve for better understanding of delta-dependence of the oscillation probability. Some interesting implications of the large theta_{13} hypothesis are discussed.
description: Fig.2 added, 23 pages. Matches to the published version
Weak and Strong Field Dynamos: from the Earth to the stars
Creators: name: Morin, J.
name: Dormy, E.
name: Schrinner, M.
name: Donati, J. -F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Observations of magnetism in very low mass stars recently made important progress, revealing characteristics that are now to be understood in the framework of dynamo theory. In parallel, there is growing evidence that dynamo processes in these stars share many similarities with planetary dynamos. We investigate the extent to which the weak \emph{vs} strong field bistability predicted for the geodynamo can apply to recent observations of two groups of very low mass fully-convective stars sharing similar stellar parameters but generating radically different types of magnetic fields. Our analysis is based on previously published spectropolarimetric and spectroscopic data. We argue that these can be interpreted in the framework of weak and strong field dynamos.
description: 5 pages, 4 figures, accepted for publication in MNRAS letters
Συναίσθημα και Νόημα στην Ελληνική Νοηματική Γλώσσα
Creators: name: Καραθανάση, Γεωργία Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Συναίσθημα
Νοηματική Γλώσσα
Νόημα
Emotion
Sign Language
Sign

description: Στόχος της παρούσας μελέτης είναι η ανάλυση της κωδικοποίησης των συναισθημάτων στην Ελληνική Νοηματική Γλώσσα, μέσα από την περιγραφή των αντίστοιχων Νοημάτων. Αρχικά, αναφερθήκαμε στα χαρακτηριστικά των νοηματικών γλωσσών και περιγράψαμε την έννοια «συναίσθημα» στις ομιλούμενες γλώσσες. Το θεωρητικό πλαίσιο αυτής της μελέτης αντλεί από τις Θεωρίες της Μεταφοράς και της Μετωνυμίας. Στη συνέχεια, παρουσιάσαμε αναλυτικά τα συστατικά στοιχεία των Νοημάτων καθώς και τις μεταφορικές και μετωνυμικές εκφράσεις, οι οποίες προέκυψαν μέσα από αυτή την ανάλυση. Από τα παραπάνω, διαπιστώσαμε τη χρήση του μη κυριολεκτικού λόγου στην κωδικοποίηση των συναισθημάτων στην Ελληνική Νοηματική Γλώσσα.
description: The aim of the present thesis is to study the codification of emotions in the Greek Sign Language, through the description of the corresponding Signs. Initially, we referred to the sign languages features and we described the notion «emotion» in the spoken languages. The theoretical framework of this study draws on the Conceptual Metaphor and Metonymy Theory. Furthermore, we thoroughly presented the components of the Signs and the metaphorical and metonymic expressions that emerged from this analysis. From the abovementioned, we noted the use of figurative language in the codification of emotions in the Greek Sign Language.
Massenspektrometrische Identifikation neuer Interaktionspartner des IL-1/TLR Signaltransduktionsweges
Creators: name: Schuster, Tobias Benjamin
Publisher: name: Karlsruhe
Year: 2012
Subjects: Protein-Protein Interaktionen
TLR-Signaling
Massenspektrometrie

description: Als neues wichtiges regulatorisches Protein in der TLR-Signaltransduktion wurde 14-3-3 im Komplex mit TLR2 und MyD88 in unabhängigen Experimenten nachgewiesen und dessen Funktion aufgeklärt. So hat sich gezeigt, dass 14-3-3 theta die TLR2-aktivierte NF-kappaB-Aktivität hemmt, allerdings unter TLR4-Stimulation erhöht. Der Einfluss von 14-3-3 wird durch den unterschiedlich positiven bzw. negativen Effekt auf die Sekretion der Zytokine und Chemokine TNF-alpha, IL-6, IP-10, RANTES und IL-8 deutlich.
Hybrid Quantization: From Bianchi I to the Gowdy Model
Creators: name: Martín-Benito, Mercedes
name: Marugán, Guillermo A. Mena
name: Wilson-Ewing, Edward
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Gowdy cosmologies are vacuum solutions to the Einstein equations which possess two space-like Killing vectors and whose spatial sections are compact. We consider the simplest of these cosmological models: the case where the spatial topology is that of a three-torus and the gravitational waves are linearly polarized. The subset of homogeneous solutions to this Gowdy model are vacuum Bianchi I spacetimes with a three-torus topology. We deepen the analysis of the loop quantization of these Bianchi I universes adopting the improved dynamics scheme put forward recently by Ashtekar and Wilson-Ewing. Then, we revisit the hybrid quantization of the Gowdy $T^3$ cosmologies by combining this loop quantum cosmology description with a Fock quantization of the inhomogeneities over the homogeneous Bianchi I background. We show that, in vacuo, the Hamiltonian constraint of both the Bianchi I and the Gowdy models can be regarded as an evolution equation with respect to the volume of the Bianchi I universe. This evolution variable turns out to be discrete, with a strictly positive minimum. Furthermore, we argue that this evolution is well-defined inasmuch as the associated initial value problem is well posed: physical solutions are completely determined by the data on an initial section of constant Bianchi I volume. This fact allows us to carry out to completion the quantization of these two cosmological models.
description: 20 pages, version accepted for publication in Physical Review D
Quantum molecular dynamics simulations for the nonmetal-metal transition in shocked methane
Creators: name: Li, Dafang
name: Zhang, Ping
name: Yan, Jun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We have performed quantum molecular-dynamics simulations for methane under shock compressions up to 80 GPa. We obtain good agreement with available experimental data for the principal Hugoniot, derived from the equation of state. A systematic study of the optical conductivity spectra, one-particle density of states, and the distributions of the electronic charge over supercell at Hugoniot points shows that the transition of shocked methane to a metallic state takes place close to the density at which methane dissociates significantly into molecular hydrogen and some long alkane chains. Through analyzing the pair correlation function, we predict the chemical picture of the shocked methane. In contrast to usual assumptions used for high pressure modeling of methane, we find that no diamond-like configurations occurs for the whole density-temperature range studied.
description: Some revisions have been given in response to referees' sugestions
title: Прогрессирующий фенотип фиброзирующих интерстициальных заболеваний легких
Creators: name: Глухарева, Марина
name: Ванюшкина, Анна
name: Мелещеня, Оксана
name: Смирнова, Марина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Интерстициальные заболевания легких (ИЗЛ) представляют собой гетерогенную группу болезней, характеризующуюся преимущественным поражением легочного интерстиция. Среди них особое место занимает идиопатический легочный фиброз (ИЛФ), характеризующийся необратимым снижением легочной функции и неблагоприятным прогнозом. С недавнего времени среди фиброзирующих ИЗЛ (аутоиммунные заболевания с
поражением легких, хронический гиперсенситивный пневмонит, саркоидоз и др.) также выделяют прогрессирующий фенотип, близкий к ИЛФ по патогенезу, лучевому паттерну, течению. На прогноз данной категории больных влияют ранняя диагностика, раннее направление в референтный центр и раннее начало терапии. В статье приведены современные литературные данные и рассмотрен случай ИЛФ с быстрым
прогрессированием.
How Geometry Controls the Tearing of Adhesive Thin Films on Curved Surfaces
Creators: name: Kruglova, Olga
name: Brau, Fabian
name: Villers, Didier
name: Damman, Pascal
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Flaps can be detached from a thin film glued on a solid substrate by tearing and peeling. For flat substrates, it has been shown that these flaps spontaneously narrow and collapse in pointy triangular shapes. Here we show that various shapes, triangular, elliptic, acuminate or spatulate, can be observed for the tears by adjusting the curvature of the substrate. From combined experiments and theoretical models, we show that the flap morphology is governed by simple geometric rules.
description: 6 pages, 5 figures
The development and application of superhydrophilic-superhydrophobic patterned polymer surfaces for high-density cell microarrays
Creators: name: Boles, Erica Ann
Publisher: name: Karlsruhe
Year: 2014

description: In this work, the interesting and unique properties of superhydrophilic-superhydrophobic patterned surfaces were used to form high-density arrays of cells or liquids for cell screening applications.
Σχολιασμένη Μετάφραση από την Αγγλική στην Ελληνική Γλώσσα Αποσπασμάτων του Επιστημονικού Άρθρου με Τίτλο: «A Review of Current Trends with Type 2 Diabetes - Epidemiology, Aetiology, Pathogenesis, Treatments and Future Perspectives»
Creators: name: Καριεντίδου, Ευγενία Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Διαβήτης τύπου 2
Ελληνικά Διαβητολογικά Χρονικά
Θεραπεία
Type 2 Diabetes
Hellenic Diabetological Chronicles
Treatment

description: Η παρούσα εργασία αποτελεί σχολιασμένη μετάφραση από τα αγγλικά στα ελληνικά αποσπασμάτων του άρθρου «A Review of Current Trends with Type 2 Diabetes Epidemiology, Aetiology, Pathogenesis, Treatments and Future Perspectives» των Josh Reed, Stephen Bain και Venkateswarlu Kanamarlapudi. Πρόκειται για επιστημονικό άρθρο που εξετάζει διάφορες πτυχές και θέματα σχετικά με τον σακχαρώδη διαβήτη τύπου 2, όπως για παράδειγμα η επιδημιολογία, η παθολογία, οι αιτίες και οι μέθοδοι θεραπείας. Σύμφωνα με τη μεταφραστική εντολή, η μετάφραση του κειμένου θα δημοσιευτεί στο περιοδικό «Ελληνικά Διαβητολογικά Χρονικά» με στόχο την ενημέρωση ειδικών του πεδίου της υγείας σχετικά με τη νόσο, παραθέτοντας παράλληλα αποτελέσματα πρόσφατων σχετικών ερευνών. Στην πρώτη ενότητα της εργασίας αναφέρονται οι εξωκειμενικοί παράγοντες του μεταφραστικού έργου και η μεταφραστική εντολή. Ακολουθεί η παράθεση του κειμένου-πηγή σε αντιστοιχία με το κείμενο-στόχο στη δεύτερη ενότητα, ενώ στην τρίτη ενότητα παρατίθεται το γλωσσάρι όρων. Στην τέταρτη ενότητα παρουσιάζεται η αναλυτική τεκμηρίωση των όρων με παραπομπή στις πηγές και στην πέμπτη παρουσιάζεται η ορολογική έρευνα. Στην έκτη γίνεται αναφορά στις προκλήσεις που προέκυψαν κατά τη διάρκεια του μεταφραστικού έργου και στην επίλυσή τους. Στη συνέχεια ακολουθεί ο επίλογος, και τέλος παρουσιάζεται η βιβλιογραφία και παράρτημα.
description: This thesis is an annotated translation from English into Greek of excerpts from the article "A Review of Current Trends with Type 2 Diabetes Epidemiology, Aetiology, Pathogenesis, Treatments and Future Perspectives" by Josh Reed, Stephen Bain and Venkateswarlu Kanamarlapudi. It is a scientific article that discusses various aspects and issues related to type 2 diabetes mellitus, for example epidemiology, pathogenesis, causes and treatment methods. According to the translation brief, the translation will be published in the journal "Hellenic Diabetological Chronicles", aiming to inform health experts about the disease while citing results of recent relevant research. The first section of the thesis discusses the extra-textual factors of the translation and the translation brief. In the second section there is a presentation of the source text in correspondence with the target text, while the glossary of terms is provided in the third section. The fourth section presents the detailed documentation of the terms with reference to the sources and the fifth section includes the terminological research. In the sixth section, the challenges that arose during the translation and their resolution are discussed. This is followed by the conclusion, and finally, the bibliography and appendix are provided.
Polyol-mediated Synthesis of Chalcogenide Nanoparticles for Thin-film Solar Cells
Creators: name: Dong, Hailong
Publisher: name: Karlsruhe
Year: 2014
Subjects: Chalcogenide thin-film solar cells
core@shell nanostructure
Porous ZnO platelets
Photoluminescence of heated polyols

description: The aim of this work was polyol-mediated syntheses of chalcogenide nanoparticles for printable thin-film solar cells. In this thesis, chalcogenide nanoparticles, such as Cu2Se, In2Se3, CZTS, Se@CuSe and Te@Bi2Te3, have been successfully synthesized via a polyol-mediated method.
Novel Strategies for the Preparation and Functionalization of Noble Metallic and Titanium Dioxide Nanoparticles
Creators: name: Chen, Cheng
Publisher: name: Karlsruhe
Year: 2014
Subjects: Nanoparticles
silver
copper
DNA
enzyme

description: Water-soluble, monodisperse AgNPs were synthesized using benzotriazole-maleimide as stabilizer. DNA-AgNP conjugates obtained through Diels-Alder cycloaddition were utilized for DDI of enzyme which retained its activity after the immobilization process. CuNPs in aqueous solutions using ascorbic acid and dopamine-based linkers were prepared. They produced ROS, and could be employed as enzyme mimetics and as catalysts for the degradation of harmful fluorescent dyes and antibiotics.
Spin-1 Kitaev model in one dimension
Creators: name: Sen, Diptiman
name: Shankar, R.
name: Dhar, Deepak
name: Ramola, Kabir
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a one-dimensional version of the Kitaev model on a ring of size N, in which there is a spin S > 1/2 on each site and the Hamiltonian is J \sum_i S^x_i S^y_{i+1}. The cases where S is integer and half-odd-integer are qualitatively different. We show that there is a Z_2 valued conserved quantity W_n for each bond (n,n+1) of the system. For integer S, the Hilbert space can be decomposed into 2^N sectors, of unequal sizes. The number of states in most of the sectors grows as d^N, where d depends on the sector. The largest sector contains the ground state, and for this sector, for S=1, d =(\sqrt{5}+1)/2. We carry out exact diagonalization for small systems. The extrapolation of our results to large N indicates that the energy gap remains finite in this limit. In the ground state sector, the system can be mapped to a spin-1/2 model. We develop variational wave functions to study the lowest energy states in the ground state and other sectors. The first excited state of the system is the lowest energy state of a different sector and we estimate its excitation energy. We consider a more general Hamiltonian, adding a term λ\sum_n W_n, and show that this has gapless excitations in the range λ^c_1 \leq λ\leq λ^c_2. We use the variational wave functions to study how the ground state energy and the defect density vary near the two critical points λ^c_1 and λ^c_2.
description: 12 pages including 3 figures; added some discussion and references; this is the published version
Gaudin models solver based on the Bethe ansatz/ordinary differential equations correspondence
Creators: name: Faribault, Alexandre
name: Araby, Omar El
name: Sträter, Christoph
name: Gritsev, Vladimir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a numerical approach which allows the solving of Bethe equations whose solutions define the eigenstates of Gaudin models. By focusing on a new set of variables, the canceling divergences which occur for certain values of the coupling strength no longer appear explicitly. The problem is thus reduced to a set of quadratic algebraic equations. The required inverse transformation can then be realized using only linear operations and a standard polynomial root finding algorithm. The method is applied to Richardson's fermionic pairing model, the central spin model and generalized Dicke model.
description: 10 pages, 3 figures, published version
Quantum Correlations in non-Markovian Environments
Creators: name: Altintas, Ferdi
name: Eryigit, Resul
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have studied the analytical Markovian and non-Markovian dynamics of quantum correlations, such as entanglement, quantum discord and Bell nonlocalities for three noisy qubits. Quantum correlation as measured by quantum discord is found to be immune to death contrary to entanglement and Bell nonlocality for initial GHZ- or W-type mixed states.
Functional Interpretations of Intuitionistic Linear Logic
Creators: name: Ferreira, Gilda
name: Oliva, Paulo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: 03F10, 03F52, 03F55

description: We present three different functional interpretations of intuitionistic linear logic ILL and show how these correspond to well-known functional interpretations of intuitionistic logic IL via embeddings of IL into ILL. The main difference from previous work of the second author is that in intuitionistic linear logic (as opposed to classical linear logic) the interpretations of !A are simpler and simultaneous quantifiers are no longer needed for the characterisation of the interpretations. We then compare our approach in developing these three proof interpretations with the one of de Paiva around the Dialectica category model of linear logic.
The Host Galaxies of Gamma-Ray Bursts II: A Mass-Metallicity Relation for Long-Duration Gamma-Ray Burst Host Galaxies
Creators: name: Levesque, Emily M.
name: Kewley, Lisa J.
name: Berger, Edo
name: Zahid, H. Jabran
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a statistically robust mass-metallicity (M-Z) relation for long-duration gamma-ray burst (LGRB) host galaxies at z < 1. By comparing the LGRB host M-Z relation to samples representative of the general star-forming galaxy population, we conclude that LGRBs occur in host galaxies with lower metallicities than the general population, and that this trend extends to z ~ 1, with an average offset of -0.42 +/- 0.18 from the M-Z relation for star-forming galaxies. Our sample in this work includes new spectroscopic data for 6 LGRB host galaxies obtained at the Keck and Magellan telescopes, as well as 2 new host galaxies from the literature. Combined with data from our previous work, this yields a total sample of 6 LGRB host galaxies at z < 0.3 and 10 host galaxies at 0.3 < z < 1. We have determined a number of interstellar medium properties for our host galaxies using optical emission-line diagnostics, including metallicity, ionization parameter, young stellar population age, and star formation rate. Across our full sample of 16 LGRB hosts we find an average metallicity of log(O/H) + 12 = 8.4 +/- 0.3. Notably, we also measure a comparatively high metallicity of log(O/H) + 12 = 8.83 +/- 0.1 for the z = 0.296 host galaxy of GRB 050826. We also determine stellar masses (M*) for our LGRB host galaxy sample, finding a mean stellar mass of log(M*/Msun) = 9.25 (+0.19,-0.23).
description: 16 pages, 6 figures; accepted for publication in Astronomical Journal
Letter from Morse A. Cartwright to Frederick P. Keppel, September 30, 1939
Creators: name: Cartwright, Morse A. (Morse Adams), 1890-
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Discussion of potential collaboration between the Carnegie-Myrdal Study and the American Association for Adult Education.
Secret identities in the classroom : negotiating conceptions of identity with comics and bilingual grade four students
Creators: name: Lawrence, Julian
Publisher: name: University of British Columbia
Year: 2017

description: Most educators are unfamiliar with ways to use comics and cartooning, thus classroom opportunities for students to engage in a medium they love are uncommon. In this study, I investigate integrating the language of comics into classroom learning strategies and research some of the ways writing//cartooning can help students negotiate conceptions of identity. I wrote a lesson plan that weaved connections between making comics and curriculum, and taught the participants sequential narratives through freehand cartooning. This study investigates some of the ways drawing fictional comics support bilingual grade four students’ learning and negotiations of identity in the classroom.This is a qualitative research project that gathers data in the form of student-generated art and one-on-one audio interviews with three participants. A/r/tography, semiotics and life-writing inform the study’s hybrid methodology as I research grade four students’ understandings through comics. Conceptions of identity emerge in the participants’ comics, as well as in my own autographics. A class of twenty-five bilingual students participated in this study. Due to time constraints and the large volume of data generated, I narrowed the scope of the study to three participants, thus creating opportunities for more detailed analysis of information. Data tracking was supported by theories of authorship such as l’auteur complet [the complete author](Groensteen, 2012a; Uidhir, 2012) and l’écriture féminine [the feminine writing](Cixous & Clément, 1986; Sellers, 1996; Taylor, 2014). Deeper analysis of the students’ comics reveals that the perception/drawing/meaning systems (Cohn, 2012) involved with image-making create unconscious (Hancock, 2009; Jung & Franz, 1964) pathways for students to engage and negotiate identity. In this way, they are personally invested in the narratives they create and thus engaged to learn and explore. This engagement is amplified when their works are to be displayed and, especially, printed, as they were in this study. Students can tell stories, express concerns, and resolve issues when they make comics. Thus, implications for practice include, but are not limited to, finding methods to incorporate more comics into curriculum, legitimizing academic departments of comics studies, and investigating the intersectional, unconscious and multimodal relationships students negotiate when they draw comics by hand.
One-loop Helicity Amplitudes for Top Quark Pair Production in Randall-Sundrum Model
Creators: name: Zhu, Hua Xing
name: Li, Chong Sheng
name: Dai, Liang
name: Gao, Jun
name: Wang, Jian
name: Yuan, C. -P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we show how to calculate analytically the one-loop helicity amplitudes for the process $q\bar{q} rightarrow t\bar{t}$ induced by KK gluon, using the spinor-helicity formalism. A minimal set of Feynman rules which are uniquely fixed by gauge invariance and the color representation of the KK gluon are derived and used in the calculation. Our results can be applied to a variety of models containing a massive color octet vector boson.
description: 37 pages, 10 figures, journal version
On the Tensionless Limit of String theory, Off - Shell Higher Spin Interaction Vertices and BCFW Recursion Relations
Creators: name: Fotopoulos, A.
name: Tsulaia, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct an off-shell extension of cubic interaction vertices between massless bosonic Higher Spin fields on a flat background which can be obtained from perturbative bosonic string theory. We demonstrate how to construct higher quartic interaction vertices using a simple particular example. We examine whether BCFW recursion relations for interacting Higher Spin theories are applicable. We argue that for several interesting examples such relations should exist, but consistency of the theories might require that we supplement Higher Spin field theories with extended and possibly non-local objects.
description: 34 pages; v2 fixed typos, added acknowledgments and references, several explanations and corrections in section 6, conclusions unchanged; v3 35 pages, references added, typos fixed, version accepted for publication by JHEP
Preprints als "besondere Form" der Open-Access-Veröffentlichung – Herausforderungen und Umgang damit
Creators: name: Schmitz, Jasmin
Publisher: name: Zenodo
Year: 2021
Subjects: Open Access
Preprints

description: Preprints sind frei verfügbare Vorab-Versionen eines Manuskripts, die entweder vor der Einreichung bei einer Zeitschrift oder zeitgleich mit der Einreichung bzw. kurz danach über sogenannte Preprint-Server oder Repositorien zugänglich gemacht werden. Sie werden zu Open Access Grün gezählt, sind beispielsweise in der Physik in elektronischer Form bereits seit den 1990er Jahren etabliert, erleben mit der COVID-19-Krise aber auch in anderen Fächern – insbesondere in den Lebenswissenschaften – einen regelrechten Auftrieb. Während mit der Vorabveröffentlichung von wissenschaftlichen Ergebnissen eine Reihe von Vorteilen verbunden ist, wie zum Beispiel sehr frühe und kostenfreie Zugänglichkeit von Ergebnissen oder die Möglichkeit zum Einholen von Feedback direkt durch die jeweilige Fach-Community, ergeben sich aber auch eine Reihe von Herausforderungen sowie Fragen nach dem Umgang damit. Diese betreffen nicht nur Forschende, die ihre Ergebnisse publizieren möchten, sondern auch Herausgeber:innen von Zeitschriften und Institutionen, die Publikationsplattformen betreiben sowie weitere Akteure im Bereich der wissenschaftlichen Kommunikation. Als solche Herausforderungen zu nennen sind hier beispielsweise: Umgang mit der Tatsache, dass es sich um nicht begutachtete Ergebnisse handelt, Darstellung von unterschiedlichen Artikel-Versionen in Nachweissystemen oder Praxis beim Zurückziehen von fehlerhaften Ergebnissen. Der Vortrag wird die unterschiedlichen Herausforderungen sowie bisher bekannte Lösungsansätze überblicksartig vorstellen.
Non-singular exponential gravity: a simple theory for early- and late-time accelerated expansion
Creators: name: Elizalde, E.
name: Nojiri, S.
name: Odintsov, S. D.
name: Sebastiani, L.
name: Zerbini, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A theory of exponential modified gravity which explains both early-time inflation and late-time acceleration, in a unified way, is proposed. The theory successfully passes the local tests and fulfills the cosmological bounds and, remarkably, the corresponding inflationary era is proven to be unstable. Numerical investigation of its late-time evolution leads to the conclusion that the corresponding dark energy epoch is not distinguishable from the one for the $Λ$CDM model. Several versions of this exponential gravity, sharing similar properties, are formulated. It is also shown that this theory is non-singular, being protected against the formation of finite-time future singularities. As a result, the corresponding future universe evolution asymptotically tends, in a smooth way, to de Sitter space, which turns out to be the final attractor of the system.
description: 22 pages, 10 figures, version to appear in PRD
Stable p-branes in Chern-Simons AdS supergravities
Creators: name: Edelstein, Jose D.
name: Garbarz, Alan
name: Miskovic, Olivera
name: Zanelli, Jorge
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct static codimension-two branes in any odd dimension D, with negative cosmological constant, and show that they are exact solutions of Chern-Simons (super)gravity theory for (super)AdS coupled to external sources. The stability of these solutions is analyzed by counting the number of preserved supersymmetries. It is shown that static massive (D-3)-branes are unstable unless some suitable gauge fields are added and the brane is extremal. In particular, in three dimensions, a 0-brane is recognized as the negative mass counterpart of the BTZ black hole. For these 0-branes, we write explicitly electromagnetically charged BPS states with various number of preserved supersymmetries within the OSp(p|2) x OSp(q|2) supergroups. In five dimensions, we prove that stable 2-branes with electromagnetic charge always exist for the generic supergroup SU(2,2|N), where N is different than 4. For the special case N=4, in which the CS supergravity requires the addition of a nontrivial gauge field configuration in order to preserve maximal number of degrees of freedom, we show for two different static 2-branes that they are BPS states (one of which is the ground state), and from the corresponding algebra of charges we show that the energy is bounded from below. In higher dimensions, our results admit a straightforward generalization, although there are presumably more solutions corresponding to different intersections of the elementary objects.
description: 43 pages, revtex4.cls; v2: slight amendments and references added to match published version
Indecomposability parameters in chiral Logarithmic Conformal Field Theory
Creators: name: Vasseur, Romain
name: Jacobsen, Jesper Lykke
name: Saleur, Hubert
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Work of the last few years has shown that the key algebraic features of Logarithmic Conformal Field Theories (LCFTs) are already present in some finite lattice systems (such as the XXZ spin-1/2 chain) before the continuum limit is taken. This has provided a very convenient way to analyze the structure of indecomposable Virasoro modules and to obtain fusion rules for a variety of models such as (boundary) percolation etc. LCFTs allow for additional quantum numbers describing the fine structure of the indecomposable modules, and generalizing the `b-number' introduced initially by Gurarie for the c=0 case. The determination of these indecomposability parameters has given rise to a lot of algebraic work, but their physical meaning has remained somewhat elusive. In a recent paper, a way to measure b for boundary percolation and polymers was proposed. We generalize this work here by devising a general strategy to compute matrix elements of Virasoro generators from the numerical analysis of lattice models and their continuum limit. The method is applied to XXZ spin-1/2 and spin-1 chains with open (free) boundary conditions. They are related to gl(n+m|m) and osp(n+2m|2m)-invariant superspin chains and to nonlinear sigma models with supercoset target spaces. These models can also be formulated in terms of dense and dilute loop gas. We check the method in many cases where the results were already known analytically. Furthermore, we also confront our findings with a construction generalizing Gurarie's, where logarithms emerge naturally in operator product expansions to compensate for apparently divergent terms. This argument actually allows us to compute indecomposability parameters in any logarithmic theory. A central result of our study is the construction of a Kac table for the indecomposability parameters of the logarithmic minimal models LM(1,p) and LM(p,p+1).
description: 32 pages, 2 figures, Published Version
69747: Worcester College's War Memorial
Creators: name: Project Team, Oxford At War
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: As part of its centenary commemorations, Worcester College has created an online memorial that gives details about each of the men who died in the First World War, many profiles have supporting photographs.
Precise Determination of Quantum Critical Points by the Violation of the Entropic Area Law
Creators: name: Xavier, J. C.
name: Alcaraz, F. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Finite-size scaling analysis turns out to be a powerful tool to calculate the phase diagram as well as the critical properties of two dimensional classical statistical mechanics models and quantum Hamiltonians in one dimension. The most used method to locate quantum critical points is the so called crossing method, where the estimates are obtained by comparing the mass gaps of two distinct lattice sizes. The success of this method is due to its simplicity and the ability to provide accurate results even considering relatively small lattice sizes. In this paper, we introduce an estimator that locates quantum critical points by exploring the known distinct behavior of the entanglement entropy in critical and non critical systems. As a benchmark test, we use this new estimator to locate the critical point of the quantum Ising chain and the critical line of the spin-1 Blume-Capel quantum chain. The tricritical point of this last model is also obtained. Comparison with the standard crossing method is also presented. The method we propose is simple to implement in practice, particularly in density matrix renormalization group calculations, and provides us, like the crossing method, amazingly accurate results for quite small lattice sizes. Our applications show that the proposed method has several advantages, as compared with the standard crossing method, and we believe it will become popular in future numerical studies.
description: to appear in PRB,8 pages, 2 figures, 3 tables
Ground state of a quasi-two-dimensional electron gas
Creators: name: Bernu, B.
name: Delyon, F.
name: Holzmann, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the three-dimensional electron gas confined by a strictly two-dimensional homogeneous positive charge density at $z=0$. Within the Hartree-Fock approximation, we study the mode structure in the confined direction in the metallic regime. We find, that for $r_s<1.3$ ($r_s<2.5$) the unpolarized (polarized) electron gas starts to populate also the first excited state in the $z$-direction.
description: 15 pages, 8 figures
Toward Understanding the Cosmic-ray Acceleration at Young Supernova Remnants Interacting with Interstellar Clouds: Possible Applications to RX J1713.7-3946
Creators: name: Inoue, Tsuyoshi
name: Yamazaki, Ryo
name: Inutsuka, Shu-ichiro
name: Fukui, Yasuo
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using three-dimensional magnetohydrodynamics simulations, we investigate general properties of a blast wave shock interacting with interstellar clouds. The shock-cloud interaction generates a turbulent shell through the vorticity generations. In the turbulent shell, the magnetic field is amplified as a result of turbulent dynamo action. In the case of a young supernova remnant, the corresponding strength of the magnetic field is approximately 1 mG. The propagation speed of the shock wave is significantly stalled in the clouds because of the high density, while the shock maintains a high velocity in the diffuse surrounding. In addition, when the shock wave hits the clouds, reflection shock waves are generated that propagate back into the shocked shell. From these simulation results, many observational characteristics of a young SNR RX J1713.7-3946 that is suggested to be interacting with molecular clouds, can be explained as follows: The reflection shocks can accelerate particles in the turbulent downstream region where the magnetic field strength reaches 1mG, which causes short-time variability of synchrotron X-rays. Since the shock velocity is stalled locally in the clouds, the temperature in the shocked cloud is suppressed below 1 keV. Thus, thermal X-ray line emissions would be faint even if the SNR is interacting with molecular clouds. We also find that the photon index of the $π^0$-decay gamma rays generated by cosmic-ray protons can be 1.5, because the penetration depth of high-energy particles into the clumpy clouds depends on their energy, which is consistent with the recent gamma-ray observation by Fermi space telescope.
description: 14 pages, 11 figures, accepted for publication in the Astrophysical Journal
Secure device-independent quantum key distribution with causally independent measurement devices
Creators: name: Masanes, Lluis
name: Pironio, Stefano
name: Acin, Antonio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Device-independent quantum key distribution aims to provide key distribution schemes whose security is based on the laws of quantum physics but which does not require any assumptions about the internal working of the quantum devices used in the protocol. This strong form of security, unattainable with standard schemes, is possible only when using correlations that violate a Bell inequality. We provide a general security proof valid for a large class of device-independent quantum key distribution protocols in a model in which the raw key elements are generated by causally independent measurement processes. The validity of this independence condition may be justifiable in a variety of implementations and is necessarily satisfied in a physical realization where the raw key is generated by N separate pairs of devices. Our work shows that device-independent quantum key distribution is possible with key rates comparable to those of standard schemes.
description: 13 pages, 2 figures, see also the related work arXiv:1009.1833
Loop amplitudes in gauge theories: modern analytic approaches
Creators: name: Britto, Ruth
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This article reviews on-shell methods for analytic computation of loop amplitudes, emphasizing techniques based on unitarity cuts. Unitarity techniques are formulated generally but have been especially useful for calculating one-loop amplitudes in massless theories such as Yang-Mills theory, QCD, and QED.
description: 34 pages. Invited review for a special issue of Journal of Physics A devoted to "Scattering Amplitudes in Gauge Theories." v2: typesetting macro error fixed
Search for Supersymmetrie using Multileptonic Signatures in Proton-Proton Collisions with the CMS Detector at the LHC
Creators: name: Tröndle, Daniel Cedric
Publisher: name: Karlsruhe
Year: 2012
Subjects: LHC
SUSY
Trilepton
Multiletpon
CMS
Supersymmetrie
BSM

description: A search for mutlileptonic signatures with three or more isolated leptons in pp collisions at sqrt(s)=7 TeV is presented in this Thesis. The data, recorded with the CMS experiment at the LHC in 2011 , corresponds to an integrated luminosity of 4.7 fb^-1. The observed multilepton events are categorized into exclusive search channels based on the identity and kinematics of the objects and the events. The search results are interpreted in the context of R-parity conserving supersymmetric models.
The role of CD44 in Wnt/β-catenin signaling
Creators: name: Schmitt, Mark
Publisher: name: Karlsruhe
Year: 2014

description: This work shows that the Wnt target gene CD44 acts as a positive Wnt-signaling regulator. Silencing CD44 expression decreases, whereas CD44 over-expression increases Wnt activity. CD44 functions at the level of the Wnt receptor LRP6. CD44 complexes with LRP6 upon Wnt treatment and modulates LRP6 membrane localization. Moreover, CD44 regulates Wnt signaling in the developing CNS of X. laevis embryos shown by a decreased expression of Wnt targets tcf-4 and en-2 in CD44 morphants.