cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Radiative shocks create environments for dust formation in novae
Creators: name: Derdzinski, Andrea M.
name: Metzger, Brian D.
name: Lazzati, Davide
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Classical novae commonly show evidence of rapid dust formation within months of the outburst. However, it is unclear how molecules and grains are able to condense within the ejecta, given the potentially harsh environment created by ionizing radiation from the white dwarf. Motivated by the evidence for powerful radiative shocks within nova outflows, we propose that dust formation occurs within the cool, dense shell behind these shocks. We incorporate a simple molecular chemistry network and classical nucleation theory with a model for the thermodynamic evolution of the post-shock gas, in order to demonstrate the formation of both carbon and forsterite ($\rm Mg_2SiO_4$) grains. The high densities due to radiative shock compression ($n \sim 10^{14}$ cm$^{-3}$) result in CO saturation and rapid dust nucleation. Grains grow efficiently to large sizes $\gtrsim 0.1μ$m, in agreement with IR observations of dust-producing novae, and with total dust masses sufficient to explain massive extinction events such as V705 Cas. As in dense stellar winds, dust formation is CO-regulated, with carbon-rich flows producing carbon-rich grains and oxygen-rich flows primarily forming silicates. CO is destroyed by non-thermal particles accelerated at the shock, allowing additional grain formation at late times, but the efficiency of this process appears to be low. Given observations showing that individual novae produce both carbonaceous and silicate grains, we concur with previous works attributing this bimodality to chemical heterogeneity of the ejecta. Nova outflows are diverse and inhomogeneous, and the observed variety of dust formation events can be reconciled by different abundances, the range of shock properties, and the observer viewing angle. The latter may govern the magnitude of extinction, with the deepest extinction events occurring for observers within the binary equatorial plane.
description: Accepted to MNRAS March 2017
Sistema de información para el apoyo de las gestión integral de los residuos de aparatos eléctricos y electrónicos (RAEE) en la Universidad de Cartagena
Creators: name: Fuentes López, Daniel Alfonso
name: Vega Galarza, Oswaldo Andrés
Publisher: name: Universidad de Cartagena
Year: 2015
Subjects: Sistema de información
Diseño de software

description: Tesis (Ingeniero de Sistemas).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería de Sistemas, 2015
description: El propósito de este proyecto es el desarrollo de un sistema de información que apoye la Gestión Integral del manejo de los RAEE producidos en la Universidad de Cartagena. Finalmente, este proyecto pretende impulsar en la universidad una adecuada organización y gestión de los RAEE generados, incluyendo su identificación, clasificación y disposición final, siguiendo así, los lineamientos de la Ley 1672 de 2013. Dicho cumplimiento representará para la Universidad de Cartagena alcanzar un nivel de desarrollo sostenible, gracias a la implementación de métodos en su estructura con un sentido propio de responsabilidad social y ambiental.
El indicio
Creators: name: Cabrales Ardila, Romualdo
Publisher: name: Universidad de Cartagena
Year: 1976
Subjects: Delitos contra la persona - Colombia
Derecho penal

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas, 1976.
description: Importancia procesal, los elementos que la conforman , y medio de prueba para la existencia jurídica, comprobando los requisitos de validez, el hecho indicante, la operación lógica inferencial, el hecho desconocido o revelado y a su vez las pruebas críticas y el indicio grave de responsabilidad.
Contest Study for Reducing Discrimination: Study 4
Creators: name: Lai, Calvin K.
name: O'Shea, Brian
name: Roy, Eliane
name: Axt, Jordan
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This study investigates how four interventions to reduce discrimination that were previously successful under more general samples will work on a sample of participants who have hiring experience.
The Kakeya needle problem and the existence of Besicovitch and Nikodym sets for rectifiable sets
Creators: name: Chang, Alan
name: Csörnyei, Marianna
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 28A75

description: We solve the Kakeya needle problem and construct a Besicovitch and a Nikodym set for rectifiable sets.
description: added new section on dilations and incorporated referee's suggestions
Impact of Leadership Attributes of Project Managers on Project Success: The Case of Ethiopian Road Authority (ERA)
Creators: name: Tadesse, Kaleb
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Very little focus has been placed on the need for leadership competencies as requirements from PMs. This research study was conducted with the objective of determining the influence of leadership attributes of PMs on project success. Furthermore, it attempted to identify the leadership attributes that must be possessed by PMs through meta-analysis of previous literature and tried to determine the relationship between those attributes and project success. The meta-analysis revealed that four groups of leadership attribute namely personal trait, technical leadership skills, soft leadership skills and emotional intelligence. PMs selected for the study were first grouped into successful or unsuccessful PMs based on the performance level of the projects they were conducting. A structured questionnaire was distributed and data gathered were analyzed using SPSS version 20. It was found that all leadership attributes were positively correlated with project success. Personal traits were the most statistically significant determinants of project success followed by emotional intelligence, soft leadership skills and technical leadership skills, respectively. Other than those groups of leadership attributes, experience was also found to be a statistically significant determinant of project success. In summary, project success was positively affected by experience and the leadership attributes of the PM. Recruitment, selection and assignment of PMs to projects should be designed to include the experience and leadership attributes and Personality test should be administered to ensure personality-project fit. Training and experience sharing platforms in areas of team work, communication, project management and sensitivity trainings can have vital contribution towards improving leadership attributes required of the PM. A lesson learned documents, best practice documents as well as templates and processes like risk register, pert chart and quality assurance should be available in an organized manner
Cantor spectra of magnetic chain graphs
Creators: name: Exner, Pavel
name: Vasata, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81Q35, 34L05, 47B39

description: We demonstrate a one-dimensional magnetic system can exhibit a Cantor-type spectrum using an example of a chain graph with $δ$ coupling at the vertices exposed to a magnetic field perpendicular to the graph plane and varying along the chain. If the field grows linearly with an irrational slope, measured in terms of the flux through the loops of the chain, we demonstrate the character of the spectrum relating it to the almost Mathieu operator.
description: 15 pages, 2 figures; Section 3 argument revised, three references added
The Effect of Performance Management on Organizational Performance - in the case of Ethiopian Airlines
Creators: name: Kassahun, Yitbarek
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The objectives of this study were to attest the effect of performance management on organizational performance in Ethiopian Airlines. In addition, the study intended to determine whether a relationship exist among the variables; Integration (between organizational performance matrices and individual performance measures), Cascading (organizational objectives to individual level), Alignment (strategic objectives with key performance indicators) and Awareness (about organizational performance matrices). In order to capture the logical structure of the study, the researcher used both descriptive and explanatory research designs. A questionnaire was administered to 370 employees. The respondents were selected using simple random sampling method. The questionnaire was tested for its reliability and found to be reliable enough to study the research questions. The data collected from the survey was analyzed using SPSS software version 20.0 and presented in the form of descriptive statistics, Pearson Product Moment Correlations and Linear Regression Analysis. The results of linear regression analysis shows that Integration, cascading, and alignment significantly influence organizational performance of Ethiopian airlines. But Awareness is found to be not significant to influence organizational performance. The effectiveness of Integration between organizational performance matrices and individual performance measures, proper cascading of organizational objectives to individual level, and high alignment of strategic objectives with KPI's directly affects organizational performance. Recommendations are also made based on the overall findings for possible action which will help further improvement based on the researcher view.
title: Bautätigkeit und Wohnungsbestand in 33 Gemeinden des Kantons Zürich: I. Die Bautätigkeit 1921-1932 mit besonderer Berücksichtigung der Wohnungszunahme im Jahre 1932. II. Einige Hauptergebnisse der Wohnungszählung vom 1. Dezember 1930
title: Statistische Mittheilungen betreffend den Kanton Zürich
titleType: AlternativeTitle
title: Statistische Mitteilungen betreffend den Kanton Zürich
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 1933
Subjects: subject: 314 Allgemeine Statistiken zu Europa
subject: 728 Wohnbauten und verwandte Gebäude
subject: Kanton Zürich
subject: Amtliche Statistik
subject: Wohnungsbau
subject: Wohnungszählung
subject: Baustatistik

description: Inhalt: Die Bautätigkeit während der letzten 12 Jahre [1921-1932] mit besonderer Berücksichtigung der Wohnungszunahme im Jahre 1932 ; Einige Hauptergebnisse der Wohnungszählung vom 1. Dezember 1930.
Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
Creators: name: Guzzinati, Giulio
name: Béché, Armand
name: Lourenço--Martins, Hugo
name: Martin, Jerôme
name: Kociak, Mathieu
name: Verbeeck, Jo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Plasmonics, the science and technology of the interaction of light with metallic objects, is fundamentally changing the way we can detect, generate and manipulate light. Although the field is progressing swiftly, thanks to the availability of nanoscale manufacturing and analysis methods, fundamental properties such as the plasmonic excitations' symmetries cannot be accessed directly, leading to a partial, sometimes incorrect, understanding of their properties. Here we overcome this limitation by deliberately shaping the wave function of an electron beam to match a plasmonic excitations' symmetry in a modified transmission electron microscope. We show experimentally and theoretically that this offers selective detection of specific plasmon modes within metallic nanoparticles, while excluding modes with other symmetries. This method resembles the widespread use of polarized light for the selective excitation of plasmon modes with the advantage of locally probing the response of individual plasmonic objects and a far wider range of symmetry selection criteria.
Magnitude and Sign Correlations in Heartbeat Fluctuations
Creators: name: Ashkenazy, Yosef
name: Goldberger, Ary L.
name: Havlin, Shlomo
name: Ivanov, Plamen Ch.
name: Peng, Chung-K.
name: Stanley, H. Eugene
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Espiritu empresarial en los programas de Administración de Empresas en las universidades de la ciudad de Cartagena: Herramientas pedagógicas
Creators: name: Álvarez Rangel, Mauricio
name: Matos Castro, Jhosy Esteban
Publisher: name: Universidad de Cartagena
Year: 2014
Subjects: Planificación educativa
Currículo
Espíritu empresarial - Programas de Administración de Empresas - Universidades - Cartagena (Bolívar)

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 2014
description: Las herramientas pedagógicas utilizadas para la enseñanza del espíritu empresarial son indispensables para el desarrollo de competencias emprendedoras en los estudiantes. El presente trabajo de grado pretende establecer la relación entre las herramientas pedagógicas utilizadas para la enseñanza del espíritu empresarial en los programas de Administración de Empresas en las universidades de la ciudad de Cartagena y las competencias emprendedoras desarrolladas en los estudiantes. Es importante diseñar e implementar herramientas pedagógicas que desarrollen el potencial emprendedor de los estudiantes. Este trabajo pretende evidenciar los esfuerzos que se vienen desarrollando en este sentido y construir un punto de partida para futuras investigaciones que pretendan medir el impacto de la educación en emprendimiento en los estudiantes y/o evaluar su incidencia en la iniciación y puesta en marcha de un emprendimiento. Por último, se pretende contribuir al fortalecimiento de la cátedra de Espíritu Empresarial impartida en el programa de Administración de Empresas de la Universidad de Cartagena, al aportar conclusiones concretas que evidencien la importancia de mejorar las herramientas pedagógicas actualmente utilizadas para la enseñanza del emprendimiento.
Directed Polymers and Interfaces in Disordered Media
Creators: name: Diaz, Róbinson J. Acosta
name: Rodríguez-Camargo, Christian D.
name: Svaiter, Nami F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider field theory formulation for directed polymers and interfaces in the presence of quenched disorder. We write a series representation for the averaged free energy, where all the integer moments of the partition function of the model contribute. The structure of field space is analysed for polymers and interfaces at finite temperature using the saddle-point equations derived from each integer moments of the partition function. For the case of an interface we obtain the wandering exponent $ξ= (4-d)/2$, also obtained by the conventional replica method for the replica symmetric scenario.
description: 17 pages. arXiv admin note: text overlap with arXiv:1603.05919
Concepciones y prácticas evaluativas empleadas por los tutores de la licenciatura en básica con énfasis en lengua castellana, para valorar el desempeño de sus estudiantes, programa a distancia. Universidad de Cartagena
Creators: name: Senior Rodríguez, Rolando Jesús
name: Herrera Rivera, María Angélica
Publisher: name: Universidad de Cartagena
Year: 2015
Subjects: Español - Enseñanza
Prácticas de la educación
Aprendizaje

description: Tesis (Magíster en Educación) -- Universidad de Cartagena. Maestría en educación – SUE Caribe, 2015
description: Nuevas formas de educación, requieren nuevas formas de evaluación. Esta investigación se centra en analizar las concepciones y prácticas evaluativas de los tutores en el programa de Licenciatura en Básica, con énfasis en Lengua Castellana, que se desarrollan en la Universidad de Cartagena; en los programas a distancia se evidencian concepciones y prácticas evaluativas más acorde con espacios de educación tradicional que con una educación desescolarizada. Para allegar de un modo seguro al interés investigativo, se ha adoptado un enfoque cualitativo de perspectiva interpretativo comprensivo, éste provee la posibilidad de descubrir sentidos, ideas, percepciones, discursos encubiertos y poco develados que al ser expuestos y comprendidos, acercan la aprehensión de acciones y formas de pensar de los individuos, es desde esta perspectiva que se intenta reconocer esas concepciones y prácticas evaluativas que poseen los tutores y que manifiestan en sus encuentros tutoriales. El acercamiento teórico y el estudio del estado del arte, posibilito el dialogo real entre esas concepciones y prácticas, y las líneas de estudio actuales. En ese sentido, se propone reflexionar de los resultados encontrados en la investigación, evaluaciones que favorezcan un aprendizaje significativo, evaluaciones que estén acordes al modelo educativo a distancia y tutores con mejor preparación teórica, para su quehacer pedagógico.
Search for new phenomena in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in $\sqrt{s}=13$ TeV pp collisions with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Two searches for new phenomena in final states containing a same-flavour opposite-lepton (electron or muon) pair, jets, and large missing transverse momentum are presented. These searches make use of proton--proton collision data, collected during 2015 and 2016 at a centre-of-mass energy $\sqrt{s}=13$ TeV by the ATLAS detector at the Large Hadron Collider, which correspond to an integrated luminosity of 14.7 fb$^{-1}$. Both searches target the pair production of supersymmetric particles, squarks or gluinos, which decay to final states containing a same-flavour opposite-sign lepton pair via one of two mechanisms: a leptonically decaying Z boson in the final state, leading to a peak in the dilepton invariant-mass distribution around the Z boson mass; and decays of neutralinos (e.g. $\tildeχ_2^0 \rightarrow \ell^+\ell^- \tildeχ_1^0$), yielding a kinematic endpoint in the dilepton invariant-mass spectrum. The data are found to be consistent with the Standard Model expectation. Results are interpreted in simplified models of gluino-pair (squark-pair) production, and provide sensitivity to gluinos (squarks) with masses as large as 1.70 TeV (980 GeV).
description: 46 pages plus author list (63 pages total), 15 figures, 11 tables, published in EPJC. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2016-05
La realidad del derecho laboral en Colombia
Creators: name: Villegas De Rodríguez, Rosario
Publisher: name: Universidad de Cartagena
Year: 1979
Subjects: Derecho laboral
Derecho del trabajo - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1979
description: Estudio de los hechos, reivindicaciones e injusticias que ha sido sometida la clase obrera a través de la historia, luchas estas que impulsaron a los regímenes dominantes y al recorte de las libertades políticas y realización de reformas parciales
Resurgence Matches Quantization
Creators: name: Couso-Santamaría, Ricardo
name: Marino, Marcos
name: Schiappa, Ricardo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The quest to find a nonperturbative formulation of topological string theory has recently seen two unrelated developments. On the one hand, via quantization of the mirror curve associated to a toric Calabi-Yau background, it has been possible to give a nonperturbative definition of the topological-string partition function. On the other hand, using techniques of resurgence and transseries, it has been possible to extend the string (asymptotic) perturbative expansion into a transseries involving nonperturbative instanton sectors. Within the specific example of the local P2 toric Calabi-Yau threefold, the present work shows how the Borel-Pade-Ecalle resummation of this resurgent transseries, alongside occurrence of Stokes phenomenon, matches the string-theoretic partition function obtained via quantization of the mirror curve. This match is highly non-trivial, given the unrelated nature of both nonperturbative frameworks, signaling at the existence of a consistent underlying structure.
description: 35 pages, 15 figures; v2: 36 pages, minor changes, final version in JPAMT
Sistematización del proyecto “fortalecimiento del centro de información para el empleo C.I.E.S, para mayor capacitación de vacantes e incremento de la vinculación laboral de la fuerza de trabajo, en la ciudad de Magangué, en el 2000
Creators: name: Espitía Acevedo, Luz Mayra
Publisher: name: Universidad de Cartagena
Year: 2000
Subjects: Participación social - Desarrollo de la comunidad

description: Tesis (Trabajador Social) -- Universidad de Cartagena. Facultad de ciencias sociales y educación. Programa de trabajo social, 2000
description: Conceptuar la intervención experimentada en el programa del centro de información para empleo el SENA, debido a la inexistencia de una metodología, documentación, de estos en la Alcaldía Municipal de Magangué.
An Empirical Assessment of Agile Project Management Approach For Fintech Project: The Case Of M-Birr.
Creators: name: Amberber, Alazar
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Agile approach is an emerging methodology which has been introduced recently as a new approach for managing complex software projects to improve project performance and efficiency of software development process compare to traditional methodologies used before. Agile methods are designed for customization; they offer an organization or a team the flexibility to adopt a set of principles and practices based on their culture and values. While that flexibility is consistent with the agile philosophy, it can lead to the adoption of principles and practices that can be sub-optimal relative to the desired objectives. Whereas, accomplishment of this methodology is still subjective and deeper investigation in this area is limited in academic circles. This paper presents a case study of M-Birr software development project where the project team adopted methods from agile in the development effort. The purpose of this research is to assess the adoption of agile project management method and the agile project management practices of M-Birr. The study has conducted a census survey in order to investigate important aspects of project management process using descriptive approach. In order to collect required data, close-ended and open-ended questionnaires were administrated among project team and key project stakeholders
Practices And Challenges Of Implementing Balanced Scorecard In Wegagen Bank
Creators: name: Gezu, Sahle
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The study assessed the challenges faced while implementing the balanced scorecard system particularly the four pillars of Balanced Scorecard in the case of wegagen Bank. The study tries to evaluate the challenges faced by the Bank in implementing the tasks as compared to the standard literatures of the system. This study focus on investigating the practice and challenges of WB faced specifically on branch operation activity. To collect the data five point likert scale questionnaire and open ended questionnaire is used. The total sample size of the questionnaire is 400 including managers, customer service supervisor, and customer officers who are working at Addis Ababa branch. In this case the study adopted probability sampling particularly stratified sampling and the method used is descriptive method. The questionnaire is prepared for 161 employees working at city branches. Out of the administered questionnaire 151 managed to return. The result that comes out of the questionnaire is analyzed using descriptive method of analysis and presented in the form of table and graphs. The finding show the major challenges that WB faces in the two of perspective, internal business process and learning and growth perspective. Internal process efficiency, lack in developing new products IT security is the challenge in internal business process which require improvement. Lack of schedule training, skill job enhancement, job safety, lack of employees participation in decision making are items in learning and growth perspective that require rigorous improvement in order to bring the four perspective in balance. Which means achieving what is planned. The other Problems regarding employees perception toward BSC is biased from the reality. So giving training to employees helps to bring about the implementation smooth and effective
Topological collective plasmons in bipartite chains of metallic nanoparticles
Creators: name: Downing, Charles A.
name: Weick, Guillaume
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study a bipartite linear chain constituted by spherical metallic nanoparticles, where each nanoparticle supports a localized surface plasmon. The near-field dipolar interaction between the localized surface plasmons gives rise to collective plasmons, which are extended over the whole nanoparticle array. We derive analytically the spectrum and the eigenstates of the collective plasmonic excitations. At the edge of the Brillouin zone, the spectrum is of a pseudorelativistic nature similar to that present in the electronic band structure of polyacetylene. We find the effective Dirac Hamiltonian for the collective plasmons and show that the corresponding spinor eigenstates represent one-dimensional Dirac-like massive bosonic excitations. Therefore, the plasmonic lattice exhibits similar effects to those found for electrons in one-dimensional Dirac materials, such as the ability for transmission with highly suppressed backscattering due to Klein tunneling. We also show that the system is governed by a nontrivial Zak phase, which predicts the manifestation of edge states in the chain. When two dimerized chains with different topological phases are connected, we find the appearance of the bosonic version of a Jackiw-Rebbi midgap state. We further investigate the radiative and nonradiative lifetimes of the collective plasmonic excitations and comment on the challenges for experimental realization of the topological effects found theoretically.
description: 16 pages, 10 figures. v2: published version
title: VIELKO - Vietnamesisches Lernerkorpus
Creators: name: Van Ho, Thi Bao
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Das Vietnamesische Lernerkorpus (VieLko) wird seit 2017 im Rahmen eines laufenden, gemeinsamen Projekts zwischen zwei Hochschulen in Vietnam entwickelt und gilt als die erste landesweit, systematisiert aufgebaute Datensammlung mit sprachlichen Produkten von vietnamesischen Studierenden des Deutschen als Fremdsprache (DaF). Das Korpus umfasst sowohl geschriebene als auch gesprochene Lernerdaten: Die geschriebenen Daten wurden bisher mit vier Annotationsarten versehen, die gesprochenen Daten bleiben stets in ihrer digitaler Rohform. Seit Juni 2022 steht VieLko externen Forschenden sowie Interessierten mit beschränkter Zugänglichkeit zur Verfügung: Mithilfe einer lokal gespeicherten Kopie des Korpus haben Nutzer*innen die Möglichkeit, Konkordanzen in Bezug auf folgende Aspekte zu erstellen und auszusuchen: Tokenisierung, Lemmatisierung, Wortart, erste Zielhypothese. In der nächsten Entwicklungsphase (2023–2024) wird angestrebt, den freien Zugang zu den vorhandenen Korpusdaten auf einem Repositorium zu ermöglichen, sowie den Umfang des Datenbestandes zu erweitern.
Extended vector-tensor theories
Creators: name: Kimura, Rampei
name: Naruko, Atsushi
name: Yoshida, Daisuke
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, several extensions of massive vector theory in curved space-time have been proposed in many literatures. In this paper, we consider the most general vector-tensor theories that contain up to two derivatives with respect to metric and vector field. By imposing a degeneracy condition of the Lagrangian in the context of ADM decomposition of space-time to eliminate an unwanted mode, we construct a new class of massive vector theories where five degrees of freedom can propagate, corresponding to three for massive vector modes and two for massless tensor modes. We find that the generalized Proca and the beyond generalized Proca theories up to the quartic Lagrangian, which should be included in this formulation, are degenerate theories even in curved space-time. Finally, introducing new metric and vector field transformations, we investigate the properties of thus obtained theories under such transformations.
description: 39 pages, 2 figures, v2: published in JCAP, v3: several references are added, v4: some typos are corrected
title: F.A.Z. BiblioNet
title: Das F.A.Z.-Archiv in Ihrer Bibliothek
titleType: AlternativeTitle
Creators: name: Fella, Birgitta
Publisher: name: Technische Universität Dortmund
Year: 2006
Subjects: subject: 000

description: Öffentliche Bibliotheken und Hochschulbibliotheken haben jetzt die Möglichkeit, das F.A.Z.-Archiv online zu nutzen. Ohne Kennung und ohne Paßwort, gesteuert über einen IP-Filter. Sie stellen Ihren Nutzern und Mitarbeitern mit F.A.Z.-BiblioNet in 1,8 Millionen Artikeln die Themenvielfalt der Frankfurter Allgemeinen Zeitung und der Frankfurter Allgemeinen Sonntagszeitung zur Verfügung. Bequem und anmeldefrei kann in Ihrer Bibliothek mit BiblioNet in den Berichten und Artikeln aller Ressorts, Rubriken und Beilagen recherchiert werden - zurück bis in das Jahr 1993.
Perfect state transfer is poly-time
Creators: name: Coutinho, Gabriel
name: Godsil, Chris
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81P68, 05C50, 15A16

description: We show that deciding whether a graph admits perfect state transfer can be done in polynomial time with respect to the size of the graph on a classical computer.
description: 11 pages. Version 2 fixes an inconsequential mistake
Caracterización familiar de los beneficiarios atendidos por Handicap internacional en la línea RBC, año 2008. Propuesta para la construcción del modelo de intervención de familia
Creators: name: Torres Meriño, Ana Patricia
Publisher: name: Universidad de Cartagena
Year: 2008
Subjects: subject: Trabajo social familiar
subject: Familia - Asistencia social

description: Este trabajo es realizado para iniciar el camino hacia la construcción de enfoque de familia que Handicap International pretende implementar dentro de su intervención. Es un proyecto investigativo que buscó proponer líneas y pautas para el enfoque de familia dentro de la institución, este contempla dos fases la primera es la caracterización del grupo familiar de las personas con discapacidad atendidas por Handicap International en el marco de metodología RBC, año 2008. En segundo lugar, de acuerdo al análisis hecho a la familiar se construye una propuesta ilustrativa para la construcción del modelo de familia, vista desde la perspectiva del profesional de trabajo social partiendo de las características que definen el rol de este profesional dentro de la metodología RBC y retomando aspectos epistemológicos que utiliza el y la trabajadora social en su praxis profesional.
title: Unbekannte Wesen: die Bibliothekarin und der Nutzer
title: eine multimediale Collage zur Benutzerforschung
titleType: AlternativeTitle
Creators: name: Gläser, Christine
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 020

description: "Bibliothekare und Benutzer verstehen sich (oft) nicht" - dies ist die Ausgangsthese mit der sich die KollegInnen des BIS Oldenburg auf Spurensuche begeben. Denn im Zuge der Euphorie um Internet und elektronische Medien scheint dieses Problem zunehmend aus dem Blickfeld der BibliothekarInnen zu geraten. Dabei wird es immer dringender, sich dieser Thematik anzunehmen. Kommunikationsprobleme im Bibliotheksalltag aufzuzeigen ist dabei nur der Anfang. Wichtig ist in der Folge die Frage zu stellen, was zur Verbesserung unternommen werden kann? Da die Benutzer nicht verändert werden können, muß sich das Bewußtsein und in der Folge auch das Verhalten der BibliothekarInnen gegenüber den Benutzern wandeln. Hierfür gilt es zunächst genauer herauszufinden, was die Benutzer von der Bibliothek und den BibliothekarInnen erwarten, wo genau die Probleme liegen, wie sich Unzufriedenheit und natürlich auch Zufriedenheit ausdrückt. Darauf aufbauend müssen entsprechend neue Angebote und Leistungen definiert werden. Die Schritte, die im BIS in diese Richtung gegangen worden sind, sollen beispielhaft durch Erfahrungen, Projekte und auch Medien vorgestellt werden. Der Schlußvortrag zum Tagungsende versucht dies alles nicht streng wissenschaftlich, sondern auf angenehme - vielleicht sogar unterhaltsame - Art in Form einer Multimedia-Collage darzustellen.
On WZ and RR Couplings of BPS Branes and their all order $α'$ Corrections in IIB, IIA
Creators: name: Hatefi, Ehsan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We compute all three and four point couplings of BPS $D_{p}$-branes for all different nonzero $p$-values on the entire world volume and transverse directions. We start finding out all four point function supersymmetric Wess-Zumino (WZ) actions of one closed string Ramond-Ramond (RR) field with two fermions, either with the same (IIB) or different chirality (IIA) as well as their all order $α'$ corrections. The closed form of S-matrices of two closed string RR in both IIB, IIA, including their all order $α'$ corrections have also been addressed. Our results confirm that, not only the structures of $α'$ corrections but also their coefficients of IIB are quite different from their IIA ones. The S-matrix of an RR and two gauge (scalar) fields and their all order corrections in antisymmetric picture of RR have been carried out as well. Various remarks on the restricted Bianchi identities as well as all order $α'$ corrections to all different supersymmetric WZ couplings in both type IIA and IIB superstring theory are also released. Lastly, different singularity structures as well as all order contact terms for all non-vanishing traces in type II have also been constructed.
description: 19 pages,V3: Clarifications on 4-point functions are added, Published in PLB
Counting fixed points and rooted closed walks of the singular map $x \mapsto x^{x^n}$ modulo powers of a prime
Creators: name: Holden, Joshua
name: Richardson, Pamela A.
name: Robinson, Margaret M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: Cryptography and Security (cs.CR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 11D88 (Primary) 11A07, 11T71, 94A60 (Secondary)

description: The "self-power" map $x \mapsto x^x$ modulo $m$ and its generalized form $x \mapsto x^{x^n}$ modulo $m$ are of considerable interest for both theoretical reasons and for potential applications to cryptography. In this paper, we use $p$-adic methods, primarily $p$-adic interpolation, Hensel's lemma, and lifting singular points modulo $p$, to count fixed points and rooted closed walks of equations related to these maps when $m$ is a prime power. In particular, we introduce a new technique for lifting singular solutions of several congruences in several unknowns using the left kernel of the Jacobian matrix.
description: 18 pages. Version 2 shortens proofs, reduces redundancy, and introduces new technique for counting rooted closed walks. Version 3 updates title to agree with journal publication
Gewichts- und Distanzzähler von Codes und Kugelpackungen
Creators: name: Bowert, Frank
Publisher: name: Universität Dortmund
Year: 2005
Subjects: subject: weight enumerator
subject: distance enumerator
subject: binary codes
subject: quaternary codes
subject: average theta series
subject: extremal modular form
subject: sphere packing problem
subject: Gewichtszähler
subject: Distanzzähler
subject: Binäre Codes
subject: Quaternäre Codes
subject: Average-Thetareihe
subject: Extremale Modulform
subject: Kugelpackungsproblem
subject: 510

description: In dieser Arbeit werden Average-Thetareihen zu periodischen Punktmengen und Distanzzähler (nichtlinearer) binärer Codes von höherem Grad definiert. Sie verallgemeinern die bekannten Zähler/Reihen vom Grad 1 bzw. die Gewichtszähler/Thetareihen im linearen Fall. Es werden Eigenschaften (u.a. MacWilliams-Transformierte/Thetatransformationsformel) dieser Zähler/Reihen nachgewiesen. Die Average-Thetareihen zu geeigneten periodischen Punktmengen sind Modulformen; die zugehörige Modulgruppe wird in der Arbeit bestimmt, und es wird gezeigt, dass die wohlbekannteBeziehung zwischen den Gewichtszählern linearer Codes und den Thetareihen der aus den Codes konstuierten Gittern sich auf die Distanzzähler und Average-Thetareihen überträgt. Desweiteren wird eine Klasse von binären Codes bestimmt, deren Grad 2 Distanzzähler invariant unter MacWilliams-Transformation sind. Im letzten Kapitel der Arbeit wird die Anwendung dieser Konzepte auf ein spezielles Packungsproblem im 16-dimensionalen Raum diskutiert, und es werden periodische Punktmengen mit einer bestimmten Abstandsverteilung vom Nullpunkt konstruiert.
description: Higher degree average theta series of periodic point sets and distance enumerators of (nonlinear) binary codes are defined. They generalize the well-known enumerators/series of degree 1 and the enumerators/series in the linear case respectively. Some important properties (e.g. MacWilliams-transform/theta transformation formula) of these enumerators/series are proven. The average theta series of suitable point sets are modular forms. The corresponding modular group is determined and it is shown, that the well-known connection between weight enumerators of linear codes and the theta series of the lattices constructed via the codes carries over to the distance enumerators and average theta series. Furthermore a class of binary codes is determined for which the degree 2 distance enumerators are invariant under MacWilliams-transformation. In the last chapter the application of the preceding concepts on a certain sphere packing problem in dimension 16 is studied. In addition some point sets with a prescribed distance distribution are constructed.
Relación entre las propiedades mecánicas de los suelos y sus limites de atterberg
Creators: name: Barrios Alvear, Antonio
name: Ruiz Rangel, Victor
name: Covo Torres, Alvaro (Director)
Publisher: name: Universidad de Cartagena
Year: 1998
Subjects: Mecánica de suelos
Consolidación
Suelos - Clasificación

description: Tesis (Ingeniero Civil).--Universidad de Cartagena. Facultad de Ciencias E Ingeniería. Programa de Ingeniería Civil, 1998.
description: El presente estudio tiene por objeto validar y/o adaptar la ecuación que relaciona el coeficiente de consolidación (Cv) y el limite liquido (LL) y completar el estudio relacionado en la Universidad de Cartagena sobre la correlación existente entre la cohesión, la máxima presión de consolidación y el indice de plasticidad para arcillas presentes en el área de Cartagena.
Fine-tuning the antimicrobial activity of β-hairpin peptides with fluorinated amino acids
Creators: name: Chowdhary, Suvrat
name: Pelzer, Tim
name: Saathoff, Mareike
name: Quaas, Elisa
name: Pendl, Johanna
name: Fulde, Marcus
name: Koksch, Beate
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: antimicrobial peptides
subject: fluorinated antibiotics
subject: fluorinated biomaterials
subject: peptide digestion
subject: polyfluorinated oligopeptides
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Antimicrobial peptides (AMPs) possess bactericidal activity against a variety of pathogens depending on an overall balance of positively charged and hydrophobic residues. Selective fluorination of peptides serves to fine-tune the intrinsic hydrophobicity and that could improve AMP bioactivity without affecting the sequence length. Only a few studies have focused on the impact of this unique element on antimicrobial potency and came to somewhat contractionary results. Moreover, the influence of fluorinated amino acids on peptide proteolysis is yet not fully understood. In this work, we tackle the link between side chain fluorination and both antimicrobial activity and proteolytic stability for two series of amphiphilic β-hairpin peptides. In particular, a synergy between antimicrobial activity and peptide hydrophobicity was determined. All peptides were found to be barely hemolytic and non-toxic. Most surprisingly, the fluorinated peptides were susceptible to enzymatic degradation. Hence, the distinctive properties of these polyfluorinated AMPs will serve for the future design of peptide-based drugs.
Assessment Of The Practice Of Project Risk Management System In Ethio-Telecom
Creators: name: Gebretsadik, Tesfamichael
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The purpose of the study was to assess the practice of project risk management in Ethio-Telecom in order to address the gap between theory and actual implementation practices. Probabilistic sampling method was used to determine the sample size from the targeted population and then questionnaire was deployed to collect primary data needed for analysis. The analysis was done using project risk management practices of risk planning, identification analysis, response strategy and monitoring and controlling from project management body of knowledge as bench mark which was descriptive research method. The findings of the practice indicated that risk management plan tools like expert judgment, meetings or others and relevant stakeholders were involved for risk planning. The risk identification process revealed that methods like expert judgment, checklist, document review, and information gathering, and assumption analysis were used to identify project risks. The most common risk sources in the project include technical, financial, human and environmental cases. Results in risk analysis process imply that risk characteristics were considered, and project documents were updated after risk assessment. All the risk response strategies (control, avoidance, transfer and acceptance) were exercised but there was not well-developed strategy that considered factors such as budget, schedule and resources and quality while responding to risk. The practice of risk monitoring and controlling was not effective because project performance was not evaluated against risk. There was not transparent communication, periodic review and response audit of the project risk. The overall outcome of the study indicates that risk management was practiced but there is a gap between the theory of project risk management and the actual practice that is performed in the projects
Mollow triplet: pump probe single photon spectroscopy of artificial atoms
Creators: name: Greenberg, Ya. S.
name: Sultanov, A. N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze a photon transport through an 1D open waveguide side coupled to the $N$-photon microwave cavity with embedded artificial two- level atom (qubit). The qubit state is probed by a weak signal at the fundamental frequency of the waveguide. Within the formalism of projection operators and non-Hermitian Hamiltonian approach we develop a one-photon approximation scheme to obtain the photon wavefunction which allows for the calculation of the probability amplitudes of the spontaneous transitions between the levels of two Rabi doublets in $N$- photon cavity. We obtain analytic expressions for the transmission and reflection factors of the microwave signal through a waveguide, which contain the information of the qubit parameters. We show that for small number of cavity photons the Mollow spectrum consists of four spectral lines which is a direct manifestation of quantum nature of light. The results obtained in the paper are of general nature and can be applied to any type of qubits. The specific properties of the qubit are only encoded in the two parameters: the energy $Ω$ of the qubit and its coupling $λ$ to the cavity photons.
description: 16 pages, 17 figures, Section VI is enlarged, a new Section VII is added
Rényi relative entropies and noncommutative $L_p$-spaces
Creators: name: Jencova, Anna
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We propose an extension of the sandwiched Rényi relative $α$-entropy to normal positive functionals on arbitrary von Neumann algebras, for the values $α>1$. For this, we use Kosaki's definition of noncommutative $L_p$-spaces with respect to a state. We show that these extensions coincide with the previously defined Araki-Masuda divergences [M. Berta et al., Annales Henri Poincaré, 19:1843--1867, 2018] and prove some of their properties, in particular the data processing inequality with respect to positive normal unital maps. As a consequence, we obtain monotonicity of the Araki relative entropy with respect to such maps, extending the results of [A. Müller-Hermes and D. Reeb. Annales Henri Poincaré,18:1777--1788, 2017] to arbitrary von Neumann algebras. It is also shown that equality in data processing inequality characterizes sufficiency (reversibility) of quantum channels.
description: Accepted manuscript
Metodología de intervención del trabajador social en el área de seguridad industrial a través del departamento de salud ocupacional de la empresa Greif envase de Colombia S.A. planta Cartagena - 2002
Creators: name: Muñoz Montalvo, Yenis
Publisher: name: Universidad de Cartagena
Year: 2002
Subjects: Salud ocupacional

description: Tesis (Trabajadora Social) -- Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Programa de Trabajo Social, 2002
description: Objeto de sistematización exponiendo antecedentes, justificación, ejes de sistematización y objetivos, presentando delimitación, en el cual se enmarca el tiempo y el espacio donde se realizó el proceso de sistematización.