cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Observation of Ultrahigh Mobility Surface States in a Topological Crystalline Insulator by Infrared Spectroscopy
Creators: name: Wang, Ying
name: Luo, Guoyu
name: Liu, Junwei
name: Sankar, R.
name: Wang, Nan-Lin
name: Chou, Fangcheng
name: Fu, Liang
name: Li, Zhiqiang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological crystalline insulators (TCIs) possess metallic surface states protected by crystalline symmetry, which are a versatile platform for exploring topological phenomena and potential applications. However, progress in this field has been hindered by the challenge to probe optical and transport properties of the surface states owing to the presence of bulk carriers. Here we report infrared (IR) reflectance measurements of a TCI, (001) oriented $Pb_{1-x}Sn_{x}Se$ in zero and high magnetic fields. We demonstrate that the far-IR conductivity is unexpectedly dominated by the surface states as a result of their unique band structure and the consequent small IR penetration depth. Moreover, our experiments yield a surface mobility of 40000 $cm^{2}/(Vs)$, which is one of the highest reported values in topological materials, suggesting the viability of surface-dominated conduction in thin TCI crystals. These findings pave the way for exploring many exotic transport and optical phenomena and applications predicted for TCIs.
Positive and Negative Externalities of News Platformization
Creators: name: Miconi, Andrea
Publisher: name: Zenodo
Year: 2022

description: This deliverable is divided into three main parts. Section 2 introduces the externalities of news platformization by means of a bibliographical review. The aim of the section is to account for the main tendencies according to the scientific understanding of the process, and to identify the most relevant effects - both positive and negative - brought about by it. The second segment [section 3] is in its turn grounded in bibliographical review, and it takes into exam some advanced solutions for countering the negative effects of platformization. These proposals will be listed out in this deliverable, while also being expected to provide a basis for future elaborations - and particularly for what concerns the WP5 research tasks. The last part [section 4] will address a similar issue - that of positive and negative externalities - from an empirical perspective, by considering best practices and main flaws as detected by the partners in the ten countries, and extracted from the dataset related to the our three-month observation.
title: Computersimulation der Auswirkungen des Tragens einer Lendenorthese auf innere Kräfte in Bandscheiben und Facetten
Creators: name: Schmitt, Syn
name: Rupp, Tille
name: Waldsich, Barbara
name: Von Neukirch, Christof
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Biomechanik
subject: Menschmodell
subject: Computersimulation
subject: Lendenorthese
subject: 610 Medical sciences; Medicine

description: Fragestellung: Biomechanische Menschmodelle erlauben die Simulation von Bewegungen des Menschen mithilfe des Computers und dadurch eine Vorhersage von auch innerer Kräfte und Bewegungen, wie zum Beispiel der Kräfte und Bewegungen zwischen den Gelenkflächen von Wirbelkörpern. In vorliegender[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Concubinato en Colombia. Aspectos socio jurídicos y económicos
Creators: name: Heredia Herrera, Katya Inés
Publisher: name: Universidad de Cartagena
Year: 1983
Subjects: Concubinato - Aspectos jurídicos - Colombia
Concubinato - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1983
description: Relaciones de carácter permanente de una realidad social, como lo son las familias extramatrimoniales formadas, la cual no puede ser desconocida por la ley, ya que debe ser considerado como al matrimonio concubinal.
Distinctive Features of Hairy Black Holes in Teleparallel Gauss-Bonnet Gravity
Creators: name: Bahamonde, Sebastian
name: Doneva, Daniela D.
name: Ducobu, Ludovic
name: Pfeifer, Christian
name: Yazadjiev, Stoytcho S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the teleparallel formulation of non-minimally coupled scalar Einstein-Gauss-Bonnet gravity. In the teleparallel formulation, gravity is described by torsion instead of curvature, causing the usual Gauss-Bonnet invariant expressed through curvature to decay into two separate invariants built from torsion. Consequently, the teleparallel formulation permits broader possibilities for non-minimal couplings between spacetime geometry and the scalar field. In our teleparallel theory, there are two different branches of equations in spherical symmetry depending on how one solves the antisymmetric part of the field equations, leading to a real and a complex tetrad. We first show that the real tetrad seems to be incompatible with the regularity of the equations at the event horizon, which is a symptom that scalarized black hole solutions beyond the Riemannian Einstein-Gauss-Bonnet theory might not exist. Therefore, we concentrate our study on the complex tetrad. This leads to the emergence of scalarized black hole solutions, where the torsion acts as the scalar field source. Extending our previous work, we study monomial non-minimal couplings of degrees one and two, which are intensively studied in conventional, curvature-based, scalar Einstein-Gauss-Bonnet gravity. We discover that the inclusion of torsion can potentially alter the stability of the resulting scalarized black holes. Specifically, our findings indicate that for a quadratic coupling, which is entirely unstable in the pure curvature formulation, the solutions induced by torsion may exhibit stability within certain regions of the parameter space. In a limiting case, we were also able to find black holes with a strong scalar field close to the horizon but with a vanishing scalar charge.
description: 14 pages, 14 figures. Matches published version in PRD
Duality for relative logarithmic de Rham-Witt sheaves and wildly ramified class field theory over finite fields
Creators: name: Jannsen, Uwe
name: Saito, Shuji
name: Zhao, Yigeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14F20, 14F35, 11R37, 14G17

description: In order to study $p$-adic étale cohomology of an open subvariety $U$ of a smooth proper variety $X$ over a perfect field of characteristic $p>0$, we introduce new $p$-primary torsion sheaves. It is a modification of the logarithmic de Rham-Witt sheaves of $X$ depending on effective divisors $D$ supported in $X-U$. Then we establish a perfect duality between cohomology groups of the logarithmic de Rham-Witt cohomology of $U$ and an inverse limit of those of the mentioned modified sheaves. Over a finite field, the duality can be used to study wild ramification class field theory for the open subvariety $U$.
description: 23 pages, revised version
March 7 Sunday
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Análisis situacional de los establecimientos de crédito en la ciudad de Cartagena (1.998 -1.999)
Creators: name: Silva García, Javier Fernando
name: Lombana Arteaga, Jennifer
Publisher: name: Universidad de Cartagena
Year: 2000
Subjects: Crédito
Crédito - Evaluación

description: Tesis (Administrador de Empresas) -- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas. 2000
description: El presente estudio tiene por objeto realizar un análisis situacional de los establecimientos de crédito en la ciudad de Cartagena y su posición de competitividad y solvencia en el mercado financiero.
Three-Dimensional Simulations of Massive Stars: II. Age Dependence
Creators: name: Vanon, R.
name: Edelmann, P. V. F.
name: Ratnasingam, R. P.
name: Varghese, A.
name: Rogers, T. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present 3D full star simulations, reaching up to 90% of the total stellar radius, for three $7M_\odot$ stars of different ages (ZAMS, midMS and TAMS). A comparison with several theoretical prescriptions shows the generation spectra for all three ages are dominated by convective plumes. Two distinct overshooting layers are observed, with most plumes stopped within the layer situated directly above the convective boundary (CB); overshooting to the second, deeper layer becomes increasingly more infrequent with stellar age. Internal gravity wave (IGW) propagation is significantly impacted in the midMS and TAMS models as a result of some IGWs getting trapped within their Brunt-Väisälä frequency spikes. A fundamental change in the wave structure across radius is also observed, driven by the effect of density stratification on IGW propagation causing waves to become evanescent within the radiative zone, with older stars being affected more strongly. We find that the steepness of the frequency spectrum at the surface increases from ZAMS to the older models, with older stars also showing more modes in their spectra.
description: 24 pages, 14 figures / Accepted at ApJ
March 3 Wednesday
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Background and recent progress in using detailed chemical kinetics for numerical combustion modeling
Creators: name: Niemeyer, Kyle E.
Publisher: name: Zenodo
Year: 2018

description: Invited seminar given in the Department of Aerospace Engineering at Texas A&M University. Accurate simulations of combustion require finite-rate, multi-step models of chemical kinetics, particularly when investigating transient phenomena like ignition and extinction. However, detailed models present computational challenges for high-fidelity combustion simulations. In this talk I will describe how modern combustion and reacting-flow simulations represent chemical kinetics, and discuss the challenges of using accurate, detailed kinetic models. In particular, the large sizes of chemical reaction models for the oxidation of liquid transportation fuels present significant computational difficulties. I will also review techniques for accommodating large, detailed kinetic models in numerical combustion simulations, including model reduction/simplification, tabulation, and use of improved integration algorithms. Finally, I will present some perspectives for the future of chemical kinetics in numerical combustion
Incidencias y repercusiones de la política monetaria en la actividad económica colombiana periodo 1990 - 1994
Creators: name: Navarro Beleño, Jose M.
name: Perez De La Rosa, Daniel
Publisher: name: Universidad de Cartagena
Year: 1995
Subjects: Política monetaria
Desarrollo económico

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1995
description: El presente estudio tiene por objeto analizar y evaluar la incidencia que tuvo la aplicación de la política monetaria en la actividad económica colombiana en el periodo (1990-1994).
Probing the Intergalactic Medium with Ly$\mathrmα$ and 21 cm Fluctuations
Creators: name: Heneka, Caroline
name: Cooray, Asantha
name: Feng, Chang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study 21cm and Ly$\mathrmα$ fluctuations, as well as H$\mathrmα$, while distinguishing between Ly$\mathrmα$ emission of galactic, diffuse, and scattered intergalactic medium (IGM) origin. Cross-correlation information about the state of the IGM is obtained, testing neutral versus ionized medium cases with different tracers in a seminumerical simulation setup. In order to pave the way toward constraints on reionization history and modeling beyond power spectrum information, we explore parameter dependencies of the cross-power signal between 21$\,$cm and Ly$\mathrmα$, which displays a characteristic morphology and a turnover from negative to positive correlation at scales of a couple Mpc$^{-1}$. In a proof of concept for the extraction of further information on the state of the IGM using different tracers, we demonstrate the use of the 21$\,$cm and H$\mathrmα$ cross-correlation signal to determine the relative strength of galactic and IGM emission in Ly$\mathrmα$. We conclude by showing the detectability of the 21$\,$cm and Ly$\mathrmα$ cross-correlation signal over more than one decade in scale at high signal-to-noise ratio for upcoming probes like SKA and the proposed all-sky intensity mapping satellites SPHEREx and CDIM, while also including the Ly$\mathrmα$ damping tail and 21cm foreground avoidance in the modeling.
description: 26 pages, 18 figures, 3 tables. Accepted for publication in ApJ
March 5 Friday.
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
On massive higher spin supermultiplets in d=3
Creators: name: Zinoviev, Yu. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, using a frame-like gauge invariant formulation of the massive higher spin bosons and fermions, we develop a direct construction of the completely off-shell cubic vertices describing an interaction of the massless gravitino with the massive higher spin supermultiplets. To achieve the invariance under the local supersymmetry we introduce all necessary supertransformations (both for the physical as well as for the auxiliary fields) and thus all the supercurrents constructed are conserved on-shell. As an illustration of the technique used we present some lower superspin examples and then we consider the arbitrary superspin. We also check that the whole construction is completely consistent with all bosonic and fermionic gauge symmetries of the fields entering the supermultiplets.
description: 17 pages
title: Absicherung gibt es überhaupt keine, man kann nur hoffen...
title: Über den Umgang mit Unsicherheiten im Kontext der Prekarisierung von Arbeitsverhältnissen junger Lebenswissenschaftler/innen
titleType: AlternativeTitle
Creators: name: Sigl, Lisa
Publisher: name: Zentrum für HochschulBildung, Technische Universität Dortmund
Year: 2015
Subjects: subject: Prekäre Arbeitsverhältnisse
subject: Berufssituation
subject: Akademiker
subject: 370

description: Gliederung: Problemaufriss & Fragestellung. - Studie und Methoden. - Die Erfahrung existenzieller Unsicherheit. - Der Umgang mit Unsicherheiten. - Wie der Umgang mit Unsicherheiten Forschungskulturen verändern kann. - Schlussbemerkung.
description: Journal Hochschuldidaktik;26. Jahrgang 2015, Heft 1 und 2
title: Bedeutung der Durchleuchtung bei der akuten einfachen Ellenbogenluxation: Analyse von 68 einfachen Ellenbogenluxationen
Creators: name: Schnetzke, Marc
name: Porschke, Felix
name: Studier-Fischer, Stefan
name: Grützner, Paul Alfred
name: Gühring, Thorsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: einfache Ellenbogenluxation
subject: Durchleuchtung
subject: chronische Instabilität
subject: 610 Medical sciences; Medicine

description: Fragestellung: Einfache Luxationen des Ellenbogens können in der Regel konservativ und mit funktioneller Therapie behandelt werden. Nach Literaturberichten verbleiben bei etwa der Hälfte der Patienten Schmerzen und Bewegungseinschränkungen im Langzeitverlauf. Bei bis zu 15% der Patienten[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
El hijo natural ante el derecho positivo
Creators: name: Blanco P., Héctor R.
Publisher: name: Universidad de Cartagena
Year: 1975
Subjects: Ilegitimidad

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1975
description: Deberes y derechos de los hijos de la unión entre parejas de solteros, que al momento de la concepción no estaban unidos legalmente en matrimonio civil o religioso y donde el reconocimiento puede ser voluntario o forzoso por uno de los progenitores ante las autoridades competentes. Una vez que el matrimonio de los padres sea validado ante el registro civil o matrimonio religioso. la calidad de hijos naturales pasa a hijos legítimos.
Optimal incentives for collective intelligence
Creators: name: Mann, Richard P.
name: Helbing, Dirk
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Dynamical Systems (math.DS)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Collective intelligence is the ability of a group to perform more effectively than any individual alone. Diversity among group members is a key condition for the emergence of collective intelligence, but maintaining diversity is challenging in the face of social pressure to imitate one's peers. We investigate the role incentives play in maintaining useful diversity through an evolutionary game-theoretic model of collective prediction. We show that market-based incentive systems produce herding effects, reduce information available to the group and suppress collective intelligence. In response, we propose a new incentive scheme that rewards accurate minority predictions, and show that this produces optimal diversity and collective predictive accuracy. We conclude that real-world systems should reward those who have demonstrated accuracy when majority opinion has been in error.
title: Native versus intraoperative Schafttorsion bei der Implantation von zementfreien Hüfttotalendoprothesen
Creators: name: Worlicek, Michael
name: Weber, Markus
name: Craiovan, Benjamin
name: Wörner, Michael
name: Springorum, Robert
name: Grifka, Joachim
name: Renkawitz, Tobias
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Hüfttotalendoprothese
subject: Navigation
subject: Femurtorsion
subject: 610 Medical sciences; Medicine

description: Fragestellung: Bei der Implantation von Hüfttotalendoprothesen (Hüft-TEP) hat die Torsion der femoralen Komponente wichtigen Einfluss auf Impingement, das postoperative Outcome und die Haltedauer des Implantates. In der vorliegenden Studie wurde der Zusammenhang zwischen nativ-anatomischer[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Estudio comparativo de la competitividad de los principales terminales marítimos de carga de Cartagena
Creators: name: Mendoza Beltran, Adriana
name: Rico Castillo, Jorge
Publisher: name: Universidad de Cartagena
Year: 2002
Subjects: Competitividad empresarial
Servicios portuarios

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 2002
description: La competitividad de los principales terminales marítimos de carga de Cartagena se traduce en empresas privadas eficientes, modernas que pagan contraprestaciones al estado y generan grandes utilidades, es por esto que la Sociedad Portuaria Regional Cartagena es el primer terminal marítimo de contenedores de la ciudad así como el primer centro de transbordo.
March 9 Tuesday
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
title: Analyse von untertriagierten Schwerverletzten in einem Traumacenter
Creators: name: Jensen, Kai Oliver
name: Lanzi, Daniele
name: Werner, Clement
name: Simmen, Hans-Peter
name: Wanner, Guido
name: Sprengel, Kai
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Polytrauma
subject: Untertriage
subject: Schockraum
subject: S3-Leitlinie
subject: 610 Medical sciences; Medicine

description: Fragestellung: Jeder Patient der die Infrastruktur eines Schockraumes bedarf, sollte identifiziert werden können. An unserer Klinik werden für die Schockraumaktivierung Kriterien in Anlehnung an die S3-Leitlinie Polytrauma/Schwerverletzen-Behandlung genutzt. Ziel der Studie war daher,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Responsabilidad social empresarial en el sector metalmecánico de la ciudad de Cartagena de Indias
Creators: name: Durango Jiménez, Kevin José
name: Guardo Sotomayor, Iván
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Responsabilidad social empresarial
Responsabilidad social en los negocios

description: Tesis (Administrador Industrial).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración Industrial, 2016
description: Este proyecto se propone diseñar un modelo de RSE para el sector metalmecánico de la ciudad de Cartagena de Indias con base en las directrices del GRI, en aras de mejorar la gestión del desarrollo sostenible en las organizaciones del mencionado sector.
Relativistic surface-plasmon enhanced harmonic generation from gratings
Creators: name: Fedeli, Luca
name: Sgattoni, Andrea
name: Cantono, Giada
name: Macchi, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The role of relativistic surface plasmons (SPs) in high order harmonic emission from laser-irradiated grating targets has been investigated by means of particle-in-cell simulations. SP excitation drives a strong enhancement of the intensity of harmonics, particularly in the direction close to the surface tangent. The SP-driven enhancement overlaps with the angular separation of harmonics generated by the grating, which is beneficial for applications requiring monochromatic XUV pulses.
description: The author L. Fedeli has been partially supported by European Research Council Consolidator Grant ENSURE (ERC-2014-CoG No. 647554)
March 6 Saturday.
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Régimen patrimonial de la sociedad conyugal
Creators: name: Paternina Márquez, Astrid
Publisher: name: Universidad de Cartagena
Year: 1987
Subjects: Derecho de familia
Conyugues
Separación de patrimonio

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1987
description: Análisis de los bienes propios de los conyugues adquiridos con anterioridad y posterioridad a la celebración del matrimonio, con las reglas que delimitan los intereses pecuniarios que se derivan del matrimonio, ya en las relaciones de los conyugues entre si, ya se en la relación con terceros.
Catalogue of Best Practices in Citizen Journalism (From citizen journalism to the platformization of news)
Creators: name: Crespo, Miguel
name: Álvares, Cláudia
name: Cardoso, Gustavo
name: Moreno, José
name: Sepúlveda, Rita
name: Foà, Caterina
Publisher: name: Zenodo
Year: 2022

description: The goals of this report are threefold: to try to understand how citizens interact with journalism in Europe, to try to categorize those interactions and to present a list of cases from different countries which can be considered as examples of best practices. To do so, we present a brief contextualization of journalism and citizen journalism, and a conceptual approach to three major categories of interaction, practices, and the use/reuse of journalistic content by citizens.
 We have taken as our starting point citizens’ engagement with journalism as both product and content: citizens collaborate with journalists in content production, citizens emulate journalistic practices, and citizens use/reuse journalism to contribute to public discourse and democracy.
 The report further develops a synoptic analysis of professional and user-generated news contents, so as to provide us with a better understanding of the potentialities, limits, and reliability of so-called citizen journalism. A selection of positive cases is expounded on, aiming to be brought to the attention of policymakers.
Light propagation through black-hole lattices
Creators: name: Bentivegna, Eloisa
name: Korzyński, Mikołaj
name: Hinder, Ian
name: Gerlicher, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The apparent properties of distant objects encode information about the way the light they emit propagates to an observer, and therefore about the curvature of the underlying spacetime. Measuring the relationship between the redshift $z$ and the luminosity distance $D_{\rm L}$ of a standard candle, for example, yields information on the Universe's matter content. In practice, however, in order to decode this information the observer needs to make an assumption about the functional form of the $D_{\rm L}(z)$ relation; in other words, a cosmological model needs to be assumed. In this work, we use numerical-relativity simulations, equipped with a new ray-tracing module, to numerically obtain this relation for a few black-hole--lattice cosmologies and compare it to the well-known Friedmann-Lemaître-Robertson-Walker case, as well as to other relevant cosmologies and to the Empty-Beam Approximation. We find that the latter provides the best estimate of the luminosity distance and formulate a simple argument to account for this agreement. We also find that a Friedmann-Lemaître-Robertson-Walker model can reproduce this observable exactly, as long as a time-dependent cosmological constant is included in the fit. Finally, the dependence of these results on the lattice mass-to-spacing ratio $μ$ is discussed: we discover that, unlike the expansion rate, the $D_{\rm L}(z)$ relation in a black-hole lattice does not tend to that measured in the corresponding continuum spacetime as $μ\to 0$.
description: 32 pages, 10 figures, matches published version
title: Vorhaltung von Blut- und Gerinnungsprodukten in deutschen TraumaZentren
Creators: name: Kühne, Christian
name: Bockhorst, Sven
name: Debus, Florian
name: Hack, Juliana
name: Ruchholtz, Steffen
name: Mand, Carsten
name: AUC, AKUT
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Polytrauma
subject: Transfusion
subject: TraumaZentren
subject: TraumaNetzwerk DGU
subject: 610 Medical sciences; Medicine

description: Fragestellung: Der hämorrhagische Schock stellt eine der Haupttodesursachen bei schwerverletzten Patienten dar. Neben der chirurgischen Blutungskontrolle, stellt besonders die Substitution mit Blutprodukten und gerinnungsaktiven Substanzen einen Hauptpfeiler der initialen Therapie dar. Daten[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Effects of Fieldline Topology on Energy Propagation in the Corona
Creators: name: Candelaresi, Simon
name: Pontin, David Ian
name: Hornig, Gunnar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We study the effect of photospheric footpoint motions on magnetic field structures containing magnetic nulls. The footpoint motions are prescribed on the photospheric boundary as a velocity field which entangles the magnetic field. We investigate the propagation of the injected energy, the conversion of energy, emergence of current layers and other consequences of the non-trivial magnetic field topology in this situation. These boundary motions lead initially to an increase in magnetic and kinetic energy. Following this, the energy input from the photosphere is partially dissipated and partially transported out of the domain through the Poynting flux. The presence of separatrix layers and magnetic null-points fundamentally alters the propagation behavior of disturbances from the photosphere into the corona. Depending on the field line topology close to the photosphere, the energy is either trapped or free to propagate into the corona.
description: 14 pages, 15 figures
Nación marginal: narrativas testimoniales del Sinú en Historias de Raca Mandaca, de David Sánchez Juliao
Creators: name: Meza Porto, Dayana Del Carmen
Publisher: name: Universidad de Cartagena
Year: 2020
Subjects: Literatura - Historia y crítica
Sánchez Juliao, David - Crítica e interpretación

description: Tesis (Profesional en Lingüística y Literatura) -- Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Lingüística y Literatura, 2020
description: La siguiente investigación buscó indagar en la primera etapa narrativa de David Sánchez Juliao su apuesta por ficcionalizar el activismo campesino del Sinú en Historias de Raca mandaca (1975), de acuerdo con la pregunta sobre cómo se configura en el texto, a partir del relato testimonial, una imagen particular de nación. Raca manda tuvo como contexto sociocultural la segunda mitad del siglo XX colombiano, donde el foco de atención sociopolítico de los historiadores se centró en las problemáticas relacionadas con la Violencia: el conflicto armado entre el Estado y los grupos al margen de la ley, y el narcotráfico como fenómeno social de crimen organizado. Las luchas campesinas de la región en mención al noroccidente del país, tema central del texto y ocurridas en el mismo periodo, fueron vistas aisladamente por los discursos hegemónicos como el histórico y el periodístico. Asimismo, la producción literaria nacional construyó una narrativa interesada por los conflictos bélicos de la violencia bipartidista, perpetuada en los enfrentamientos entre guerrilleros y paramilitares, mientras que el activismo campesino que estuvo en busca de una reforma agraria no contó con la recepción crítica que ameritó. Existen, sin embargo, autores que han reflexionado aisladamente acerca de estas problemáticas periféricas y uno de ellos fue David Sánchez Juliao. En ese sentido, Historias de Raca mandaca fue leída como un relato testimonial donde la imagen de nación es concebida como una construcción narrativa configurada a partir de la marginalidad de los personajes, campesinos que lucharon por la equidad de la tierra en el Sinú.
Electronic structure of the putative room-temperature superconductor Pb$_9$Cu(PO$_4$)$_6$O
Creators: name: Si, Liang
name: Held, Karsten
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A recent paper [Lee {\em et al.}, J. Korean Cryt. Growth Cryst. Techn. {\bf 33}, 61 (2023)] provides some experimental indications that Pb$_{10-x}$Cu$_x$(PO$_4$)$_6$O with $x\approx 1$, coined LK-99, might be a room-temperature superconductor at ambient pressure. Our density-functional theory calculations show lattice parameters and a volume contraction with $x$ -- very similar to experiment. The DFT electronic structure shows Cu$^{2+}$ in a $3d^9$ configuration with two flat Cu bands crossing the Fermi energy. This puts Pb$_{9}$Cu(PO$_4$)$_6$O in an ultra-correlated regime and suggests that, without doping, it is a Mott or charge transfer insulator. If doped such an electronic structure might support flat-band superconductivity or an correlation-enhanced electron-phonon mechanism, whereas a diamagnet without superconductivity appears to be rather at odds with our results.
description: 10 pages, 7 figures and 4 tables including supplementary materials
title: Analyse der Knochenbruchheilung und der begleitenden Blutgefäßneubildung am Tibiaschaft – Eine experimentelle Studie an der Ratte
Creators: name: Tilp, Susanne
name: Lips, Katrin Susanne
name: Heiß, Christian
name: Schnettler, Reinhard
name: Alt, Volker
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Angiogenese
subject: Knochenbruchheilung
subject: 610 Medical sciences; Medicine

description: Fragestellung: Eine erfolgreiche Knochenbruchheilung kann nur infolge einer ausreichenden Angioneogenese stattfinden. Das Ziel war es, diese Theorie auf Basis eines etablierten Tiermodells zu verifizieren und zu visualisieren. Der zeitliche Ablauf der Frakturheilung wurde beobachtet, insbesondere[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
March 10 Wednesday
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Single-Parameter Scaling and Maximum Entropy inside Disordered One-Dimensional Systems: Theory and Experiment
Creators: name: Cheng, Xiaojun
name: Ma, Xujun
name: Yepez, Miztli
name: Genack, Azriel Z.
name: Mello, Pier A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The single-parameter scaling hypothesis relating the average and variance of the logarithm of the conductance is a pillar of the theory of electronic transport. We use a maximum-entropy ansatz to explore the logarithm of the energy density, $\ln {\cal W}(x)$, at a depth $x$ into a random one-dimensional system. Single-parameter scaling would be the special case in which $x=L$ (the system length). We find the result, confirmed in microwave measurements and computer simulations, that the average of $\ln {\cal W}(x)$ is independent of $L$ and equal to $-x/\ell$, with $\ell$ the mean free path. At the beginning of the sample, ${\rm var}[\ln {\cal W}(x)]$ rises linearly with $x$ and is also independent of $L$, with a sublinear increase near the sample output. At $x=L$ we find a correction to the value of ${\rm var}[\ln T]$ predicted by single-parameter scaling.
description: 5 pages, 3 figures. Accepted for publication as a Rapid Communication in Physical Review B. With Supplementary Matterial
Detecting metrologically useful asymmetry and entanglement by a few local measurements
Creators: name: Zhang, Chao
name: Yadin, Benjamin
name: Hou, Zhi-Bo
name: Cao, Huan
name: Liu, Bi-Heng
name: Huang, Yun-Feng
name: Maity, Reevu
name: Vedral, Vlatko
name: Li, Chuan-Feng
name: Guo, Guang-Can
name: Girolami, Davide
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Important properties of a quantum system are not directly measurable, but they can be disclosed by how fast the system changes under controlled perturbations. In particular, asymmetry and entanglement can be verified by reconstructing the state of a quantum system. Yet, this usually requires experimental and computational resources which increase exponentially with the system size. Here we show how to detect metrologically useful asymmetry and entanglement by a limited number of measurements. This is achieved by studying how they affect the speed of evolution of a system under a unitary transformation. We show that the speed of multiqubit systems can be evaluated by measuring a set of local observables, providing exponential advantage with respect to state tomography. Indeed, the presented method requires neither the knowledge of the state and the parameter-encoding Hamiltonian nor global measurements performed on all the constituent subsystems. We implement the detection scheme in an all-optical experiment.
description: Close to published version
title: Strategies of resistance and the significance of hope in Palestinian literature and film
Creators: name: Abu Jbara, Yazan Hamzeh
name: School Of English
Publisher: name: University of Kent
Year: 2023

description: The starting point of this dissertation is that biopolitics is widely practiced in occupied Palestine, raising the question of the extent to which resistance takes a biopolitical form. I will analyse how iterations of the body, stationary or in motion, have changed in colonial occupied Palestine and for people living in exile vis-à-vis postcolonial resistance strategies and hope. This will be achieved by examining novellas, poetry, images, film, and prison literature produced by the Palestinian communities from 1948 onwards. The dissertation contributes to the analysis of what I term thin and thick resistance, which can constitute either separate or composite strategies to resistance praxis. While thin resistance instils endurance of hardship, resilience in outlook and behaviour, such as non-violent resistance or Sumud in a Palestinian context, thick resistance takes a violent approach. This dissertation will consider the distinction between violent and the non-violent resistance but will also engage purposefully in elements that constitute thin and thick strategies of anti-colonial and postcolonial resistance. Both thin and thick resistance are strategic options for those aiming for the survival and emancipation of Palestinians. What I posit here is the notion of hope in the Palestinian cultural output that I examine, and its importance in determining the strategy of resistance Palestinians undertake. Whilst I have drawn on theoretical and sociological accounts of biopolitics, liminality, and resistance, my dissertation will make a case for the importance of studying biopolitics in the context of literary texts. These have a dual aspect: they represent the specificity of biopolitics in their locally inflected ways. They additionally constitute a non-biopolitical mode of resistance in that they confront the struggles they write of through the imagination. Hope, I will argue, is an imaginative approach, so there is a way in which literature may be aligned with thin resistance. In the postcolonial context, the written or spoken word is often presented as an alternative to violence. Simultaneously, the written or spoken word, for example, when sites of memory and resistance are translated into words have succeeded at mobilising both thin and thick resistance. This suggests that the spoken and written word are not passive but are instigative and mobilising. They become a recourse of resistance.
Improving Generalization of Synthetically Trained Sonar Image Descriptors for Underwater Place Recognition
Creators: name: Donadi, Ivano
name: Olivastri, Emilio
name: Fusaro, Daniel
name: Li, Wanmeng
name: Evangelista, Daniele
name: Pretto, Alberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Autonomous navigation in underwater environments presents challenges due to factors such as light absorption and water turbidity, limiting the effectiveness of optical sensors. Sonar systems are commonly used for perception in underwater operations as they are unaffected by these limitations. Traditional computer vision algorithms are less effective when applied to sonar-generated acoustic images, while convolutional neural networks (CNNs) typically require large amounts of labeled training data that are often unavailable or difficult to acquire. To this end, we propose a novel compact deep sonar descriptor pipeline that can generalize to real scenarios while being trained exclusively on synthetic data. Our architecture is based on a ResNet18 back-end and a properly parameterized random Gaussian projection layer, whereas input sonar data is enhanced with standard ad-hoc normalization/prefiltering techniques. A customized synthetic data generation procedure is also presented. The proposed method has been evaluated extensively using both synthetic and publicly available real data, demonstrating its effectiveness compared to state-of-the-art methods.
description: This paper has been accepted for publication at the 14th International Conference on Computer Vision Systems (ICVS 2023)
"Síntesis histórico del derecho constitucional colombiano"
Creators: name: Gómez López, Francisco A.
Publisher: name: Universidad de Cartagena
Year: 1971
Subjects: Derecho constitucional - Aspectos jurídicos - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas, 1971.
description: Constituciones Políticas, tanto de orden centralista, como de tendencias federalistas, las razones y motivos de ello, sus principales personajes y las luchas que conllevaron a que el partido ganador, tomara por un lado el gobierno, y por otro confeccionara una nueva Constitución.
Estudio comparativo entre la clasificación endoscópica de Bormann e histopatológica de Lauren y su relación con la presencia de metástasis en pacientes con cáncer gástrico
Creators: name: Moncrieff Vega, Henry Louis
Publisher: name: Universidad de Cartagena
Year: 2017
Subjects: Cáncer gástrico - Diagnóstico
Endoscopia de Borrmann
Histopatología de Lauren

description: Tesis (Especialista en Cirugía General). -- Universidad de Cartagena. Facultad de Medicina. Departamento Médico, 2017
description: Dentro de esta investigación se busca determinar la relación entre los hallazgos endoscópicos de la clasificación de Borrmann, e hitopatológica de Lauren con la presencia de metástasis de pacientes con cáncer gástrico
Test of the Brink-Axel hypothesis for the pygmy dipole resonance
Creators: name: Martin, D.
name: von Neumann-Cosel, P.
name: Tamii, A.
name: Aoi, N.
name: Bassauer, S.
name: Bertulani, C. A.
name: Carter, J.
name: Donaldson, L.
name: Fujita, H.
name: Fujita, Y.
name: Hashimoto, T.
name: Hatanaka, K.
name: Ito, T.
name: Krugmann, A.
name: Liu, B.
name: Maeda, Y.
name: Miki, K.
name: Neveling, R.
name: Pietralla, N.
name: Poltoratska, I.
name: Ponomarev, V. Yu.
name: Richter, A.
name: Shima, T.
name: Yamamoto, T.
name: Zweidinger, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The gamma strength function and level density of 1- states in 96Mo have been extracted from a high-resolution study of the (p,p') reaction at 295 MeV and extreme forward angles. By comparison with compound nucleus $γ$ decay experiments, this allows a test of the generalized Brink-Axel hypothesis in the energy region of the Pygmy Dipole Resonance. The Brink-Axel hypothesis is commonly assumed in astrophysical reaction network calculations and states that the gamma strength function in nuclei is independent of the structure of initial and final state. The present results validiate the Brink-Axel hypothesis for 96Mo and provide independent confirmation of the methods used to separate gamma strength function and level density in $γ$ decay experiments.
description: 6 pages, 4 figures
Development and characterizations of MWCNT@TiO2 core-shell nanocomposites for photocatalytic reduction of carbon dioxide under visible light irradiation
Creators: name: Gui, Meei Mei
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Carbon dioxide (CO2) emission is one of the most well-known causes of global warming. Conversion of CO2 into useful chemical products in a process such as photocatalytic reduction is deemed as an attractive approach in permanently sequestrating CO2 from its emission source. Photocatalytic reaction applies the concept of radical-chain reactions in which proton and anion radicals are formed from electron (e-) and proton (h+) transfer between metal oxide photocatalysts and the reactants. This work demonstrated the synthesis of multi-walled carbon nanotubes (MWCNT)@titanium dioxide (TiO2) core-shell nanocomposites using a newly developed simple coating approach. UV-vis analysis revealed that the photoactivity of the nanocomposites in visible light range was significantly enhanced by the addition of visible light inducible MWCNTs. The MWCNT@TiO2 core-shell nanocomposites exhibited excellent activities for converting CO2 into methane, ethylene and ethane in a continuous process under a low power visible light irradiation at atmospheric pressure. Photoluminescence analysis revealed that the inhibition of electron-hole pair recombination was greater with the increase in MWCNT loading, indicating that the presence of MWCNTs in the nanocomposites enhanced the electron transfer and reduced the electron-hole pair recombination rates. The core-shell structures with mixed-phase of anatase-rutile shell layer were obtained from thermal treatment in the temperature range of 300-700oC for the durations of 2-6h. The various anatase-rutile crystal compositions greatly influenced the visible light absorption band-edge. The MWCNT@TiO2 was further enhanced with the addition of transition metal oxide dopants which include, iron oxides (Fe2O3), copper oxides (CuO), nickel oxides (NiO), cobalt oxides (CoO) and zinc oxides (ZnO). Doping with visible-light-responsive metal oxides i.e. CuO, Fe2O3 significantly enhanced the photoreactivity of the MWCNT@TiO2 core-shell. The metal oxides could function as ‘charge-carrier traps’ that transport electrons from TiO2 through the heterojunction of the TiO2-metal oxides. Doping of MWCNT@TiO2 with plasmonic noble metal, i.e. silver (Ag) dopant, was found to greatly improve the CO2 photoreduction performance. 2wt% Ag-doped MWCNT@TiO2 was found to possess the best performance in CO2 reduction. The optimum reaction conditions that gave the maximum formation of methane, ethylene and ethane were determined to be at CO2 flowrate of 7.5mL/min, H2O:CO2 molar ratio of 0.11mol H2O/mol CO2, and under the irradiation with light intensity of 600μW/cm2. The maximum total formation of methane, ethylene and ethane formation under the optimum conditions were found to be ca. 4.50, 0.82, 5.75μmol/g-catalyst, respectively for an 8 h photoreduction reaction. Upon obtained the optimum conditions, the work continued on a simple kinetic study based on one-site Langmuir-Hinshelwood model.