cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: FOLK - Das Forschungs- und Lehrkorpus für Gesprochenes Deutsch
Creators: name: Schmidt, Thomas
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Das Forschungs- und Lehrkorpus für GesprochenesDeutsch (FOLK) ist ein Korpus des gesprochenen Deutsch in natürlichen sozialen Interaktionen, das seit 2008 in der Abteilung Pragmatik am Leibniz-Institut für Deutsche Sprache in Mannheim aufgebaut wird. FOLK besteht aus Audio- und Videoaufzeichnungen natürlicher Gespräche aus verschiedensten gesellschaftlichen Bereichen (private, institutionelle und öffentliche Interaktionsdomäne), die durch Transkription, weitere Annotationen und Metadaten-Dokumentation für korpusgestützte Analysen erschlossen und zur wissenschaftlichen Nutzung bereitgestellt werden. FOLK wird auf vielfältige Weise für Untersuchungen zum gesprochenen Deutsch genutzt, insbesondere in der Gesprächsforschung, der Korpuslinguistik und anwendungsorientierten Zweigen der Linguistik.
Darstellung und Untersuchungen ternärer und quaternärer Halogenopalladate mit besonderer Beachtung von Redoxreaktionen: Pd(II) / Pd(IV) im Festkörper
Creators: name: Heines, Peter
Publisher: name: Universität Dortmund
Year: 2004
Subjects: subject: Halogenopalladate
subject: Halogenoaurate
subject: Festköper Redoxreaktion
subject: Gemischtvalente Verbindungen
subject: Kristallstruktur
subject: Hochdruck Röntgenpulverdiffraktometrie
subject: Rietveld-Verfeinerung
subject: 540

description: In dieser Dissertation wird über die Fortschritte im Bereich der Synthese undCharakterisierung ternärer und quaternärer Halogenopalladate sowie verwandterStrukturen berichtet. Es gelang die Synthese und strukturchemische Beschreibungder Kristallstrukturen von Cs2[PdBr4]I2, Cs2[PdCl4]I2, Rb2[PdBr4]I2,Cs4Au2PdCl12, Rb4Au2PdCl12, Cs4Au2PdI12, Cs2[AuBr2][AuBr4], Cs[AuCl4],[N(C2H5)4][AuCl4], [N(CH3)4]2[PdCl4], [N(CH3)4][Pd2I5], [Pd(C5H5N)2](SCN)2und [Pd(C5H5N)4][Hg(SCN)4)]. Die Kristallstrukturen wurden mittels Einkristallröntgenstrukturanalyseund ergänzend durch schwingungsspektroskopische Untersuchungenbestimmt. Zur Untersuchung der Festkörper-Redoxreaktionen derVerbindungen Cs2[PdI4]I2, Cs2[PdBr4]I2 und Cs2[PdCl4]I2 wurden Hochdruck-Röntgenpulverbeugungsmethoden eingesetzt. Hierdurch konnten Einblicke indie Mechanismen der Festkörper-Redoxreaktion zu Cs2[PdI6], Cs2[PdBr4I2] undCs2[PdCl4I2] gewonnen und detaillierte kristallografische Daten aus Rietveldverfeinerungenextrahiert werden.
Factores ambientales asociados a riesgo laboral en clínicas odontológicas de la universidad de Cartagena
Creators: name: Castro Espinosa, Juana Iris
name: Ortiz Julio, Sirly Dayana
Publisher: name: Universidad de Cartagena
Year: 2012
Subjects: Salud ocupacional
Riesgo laboral
Administración de riesgos

description: Tesis (Odontólogo).-- Universidad de Cartagena. Facultad de Odontología, 2012
description: La siguiente investigación tiene como fin evaluar los factores ambientales de trabajo (ruido, humedad, temperatura y luminosidad) en las áreas clínicas de la facultad de odontología de la universidad de Cartagena, con el fin de establecer si los resultados obtenidos son favorables para el óptimo desempeño odontológico tanto del paciente como para el estudiante.
The Effect Of Organizational Culture On Employees' Commitment In Buna Bank Share Company
Creators: name: Bazezew, Rahel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This study was conducted with the objective of looking into the effect of the organizational culture dimensions on employee commitment in Buna bank. A total of 217 employees participated in the study, out of which 208 (98%) were returned. The data were analyzed using descriptive and inferential statistics. The finding of the study revealed that all the four dimension of organizational culture were significantly and positively related with employees' commitment. Besides, the regression result revealed that all the four dimensions measuring organizational culture were found to have their own positive and significant effect on employees' commitment. Involvement was found to be the most contributing organizational culture dimension in the prediction of employee commitment. The remaining three dimensions, consistency, adaptability and mission had significant contribution in predicting employees' commitments in their respective order. The study depicts that a significant difference in commitment in gender where females employees were more committed than male respondents. Similarly, degree holders were found more committed than employees with Master's degree and above holders. Overall, one can conclude that the organization's culture has a significant effect in improving the level of employee commitment and hence organizations should observe their organizational culture and should check whether the cultures they have adopted are making their employees more committed or not. The organization has to ensure the involvement of its employees, consistency, adaptability and let know the mission and the directions of the organizations so that employees' commitment could be improved
Implementación de las TIC como estrategias metodológicas e innovadoras para fortalecer la enseñanza del pensamiento lógico matemático en los niños del grado primero de educación básica primaria, de la Institución Educativa Ambientalista Cartagena de Indias.
Creators: name: Hernandez Montes, Xiomara
name: Quintero Villareal, Sizia
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Pensamiento lógico matemático – Investigaciones

description: Tesis (Licenciado en Pedagogía Infantil) – Universidad de Cartagena en Convenio con la Universidad del Tolima. Facultad de Ciencias Sociales y Educación. Programa de Pedagogía Infantil, 2016
description: La presente investigación se fundamenta en la implementación de la utilización de las Tecnología de la Información y la comunicación TIC para fortalecer la enseñanza del pensamiento lógico – matemático en los niños. El tema central en esta investigación son los problemas y dificultades en el aprendizaje lógico matemático de los niños y niñas en la Educación Básica Primaria de la Institución Educativa Ambientalista Cartagena de Indias.
Monitoring stationarity and cointegration
Creators: name: Wagner, Martin
name: Wied, Dominik
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: cointegration
subject: unit roots
subject: structural change
subject: stationarity
subject: monitoring
subject: 310
subject: 330
subject: 620

description: We propose a monitoring procedure to detect a structural change from stationary to integrated behavior. When the procedure is applied to the residuals of a relationship between integrated series it thus monitors a structural change from a cointegrating relationship to a spurious relationship. The cointegration monitoring procedure is based on residuals from modified least squares estimation, using either Fully Modifi ed, Dynamic or Integrated Modified OLS. The procedure is inspired by Chu et al. (1996) in that it is based on parameter estimation on a pre-break \calibration" period only rather than being based on sequential estimation over the full sample. We investigate the asymptotic behavior of the procedures under the null, for ( fixed and local) alternatives and in case of parameter changes. We also study the finite sample performance via simulations. An application to credit default swap spreads illustrates the potential usefulness of the procedure.
description: Discussion Paper / SFB 823;23/2014
On classification of extremal non-holomorphic conformal field theories
Creators: name: Tener, James E.
name: Wang, Zhenghan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T40, 18D10, 17B69, 11F03

description: Rational chiral conformal field theories are organized according to their genus, which consists of a modular tensor category $\mathcal{C}$ and a central charge $c$. A long-term goal is to classify unitary rational conformal field theories based on a classification of unitary modular tensor categories. We conjecture that for any unitary modular tensor category $\mathcal{C}$, there exists a unitary chiral conformal field theory $V$ so that its modular tensor category $\mathcal{C}_V$ is $\mathcal{C}$. In this paper, we initiate a mathematical program in and around this conjecture. We define a class of extremal vertex operator algebras with minimal conformal dimensions as large as possible for their central charge, and non-trivial representation theory. We show that there are finitely many different characters of extremal vertex operator algebras V possessing at most three different irreducible modules. Moreover, we list all of the possible characters for such vertex operator algebras with $c$ at most 48.
description: 20 pages, many tables. v2: minor revisions to match published version
EEG mismatch responses in a multimodal roving stimulus paradigm provide evidence for probabilistic inference across audition, somatosensation, and vision
Creators: name: Grundei, Miro
name: Schröder, Pia
name: Gijsen, Sam
name: Blankenburg, Felix
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Bayesian inference
subject: cross-modal
subject: mismatch negativity
subject: multisensory
subject: P3
subject: predictive processing
subject: surprise
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: The human brain is constantly subjected to a multimodal stream of probabilistic sensory inputs. Electroencephalography (EEG) signatures, such as the mismatch negativity (MMN) and the P3, can give valuable insight into neuronal probabilistic inference. Although reported for different modalities, mismatch responses have largely been studied in isolation, with a strong focus on the auditory MMN. To investigate the extent to which early and late mismatch responses across modalities represent comparable signatures of uni- and cross-modal probabilistic inference in the hierarchically structured cortex, we recorded EEG from 32 participants undergoing a novel tri-modal roving stimulus paradigm. The employed sequences consisted of high and low intensity stimuli in the auditory, somatosensory and visual modalities and were governed by unimodal transition probabilities and cross-modal conditional dependencies. We found modality specific signatures of MMN (~100–200 ms) in all three modalities, which were source localized to the respective sensory cortices and shared right lateralized prefrontal sources. Additionally, we identified a cross-modal signature of mismatch processing in the P3a time range (~300–350 ms), for which a common network with frontal dominance was found. Across modalities, the mismatch responses showed highly comparable parametric effects of stimulus train length, which were driven by standard and deviant response modulations in opposite directions. Strikingly, P3a responses across modalities were increased for mispredicted stimuli with low cross-modal conditional probability, suggesting sensitivity to multimodal (global) predictive sequence properties. Finally, model comparisons indicated that the observed single trial dynamics were best captured by Bayesian learning models tracking unimodal stimulus transitions as well as cross-modal conditional dependencies.
Modified Bohm's theory for abstruse measurements: application to layer depth profiling by Auger spectroscopy
Creators: name: Rówiński, Edward
name: Pietruszka, Mariusz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Modified Bohm formalism is applied to solve a problem of abstruse layer depth profiles measured by the Auger electron spectroscopy technique in real physical systems, i.e., the desorbed carbon/passive layer on NiTi substrate and the adsorbed oxygen/surface of NiTi alloy. It is shown that abstruse layer profiles may be converted to real layer structures using the modified Bohm theory, where the quantum potential is due to an Auger electron effect. It is also pointed out that the stationary probability density predicts multilayer structures of abstruse depth profiles caused by carbon desorption and oxygen adsorption processes. The criterion for a kind of break between the physical and unphysical multilayer systems was found. We have concluded that the physics is also characterized by the abstruse measurement and the modified Bohm formalism
description: 6 pages, 4 figures
El liberalismo en Cartagena 1900-1912
Creators: name: Pereira Matos, Jaime Antonio
Publisher: name: Universidad de Cartagena
Year: 2005
Subjects: Liberalismo
Ideología

description: Tesis (Historiador) -- Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Historia, 2005
description: Esta investigación pretende contribuir con el rescate de la historia política, sobre todo a nivel regional y local, al estudiaremos a la colectividad llamada partido liberal en Cartagena. Con ella se pretende mostrar los aspectos más sobresalientes del liberalismo cartagenero a comienzo del siglo XX, durante los periodos de gobiernos de reyes y gran parte del republicanismo.
Reduktion von Nachbarkanalstörungen in OFDM-Systemen (DVB-C2)
Creators: name: Hasse, Philipp
name: Robert, Jörg
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: 620

description: Die zweite Generation des Standards für die Übertragung digitaler Signale in Rundfunkkabelnetzen (DVB-C2) verwendet Orthogonal Frequency Division Multiplex (OFDM) als Übertragungsverfahren. Ein typisches Leistungsdichtespektrum eines OFDM-Signals weist Anteile außerhalb des aktiven Trägerbereiches auf. Diese Anteile werden auch Out-of-Band-Emissionen (OoB) genannt und sind eigentlich ein Teil des OFDM-Nutzsignals, das jedoch in spektral benachbarten Kanälen zu Störungen führen kann. Eine Filterung des Sendesignals zur Begrenzung auf die Kanalbandbreite ist insbesondere bei den für DVB-C2 spezifizierten höheren Modulationsstufen, wie der 1024- und der 4096-QAM, mit Nachteilen wie der Degradation der Signalqualität von Randträgern oder Inter-Symbol-Interferenz verbunden. Um diese Effekte zu minimieren, wird in diesem Beitrag eine Methode vorgestellt, die die systembedingten Störanteile außerhalb der Kanalbandbreite mit Hilfe von Filtern kurzer Impulsantwort reduziert, wobei die durch die Filterung verursachten linearen Verzerrungen des aktiven Spektrums des Nutzsignals durch eine Vorverzerrung des OFDM-Signals kompensiert werden.
Assessment Of Risk Management Practice In Addis Ababa City Administration Housing Development Project: The Case Of Addis Ababa City Saving Houses Development Enterprise (40/60 Schemes)
Creators: name: Mohammed, Ali
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This study tried to assess the practice of project risk management in Addis Ababa City Saving Houses Enterprise (AACSHE). The researcher has used descriptive research design. The data collection tools were questionnaire & semi structured interview. The sample size of the study was 40 individuals who were selected through purposive sampling. The response rate was 100%. The sample size was selected through purposive sampling and a questionnaires with an item of 49 was distributed to the team members and individuals who are involved with the projects. The findings of the study reveled that there is no well organized policy or guideline that recommend how to manage risks in the projects. The project doesn't usually follows a defined or standard risk management process. Majority of respondents believed risk management is not treated as a continuous process in the project. The finding of the result showed irregularity as far as handling of uncertainties that occur within the project. Careful plan is not designed for the projects to overcome or handle uncertain events that may take place. Even though few respondents reported the Enterprise use of risk identification such as expert judgment, checklist, document review, information gathering, & assumption analysis, most of them disagree the existence of the practice of these method in the project. According to the respondents the majority source of risk in the project was human risk followed by technical and financial risks. Majority of respondent disagree the existence of well developed strategy to respond to uncertainties if they occur. The Enterprise lags behind in the practice of risk monitoring and control within the project. Furthermore, risk management culture is very low in the enterprise. Generally, the outcome of the research confirmed that risk management practice is implemented to some extent but there is a gap between the theory of project risk management which should be applied and the actual practice that is performed by the two condominium project sites. Therefore, possible recommendations are outlined at the end of this project work on what actions should be taken to improve the practice.
The Choice of Refractories for Steel Ladle Lining: a Life Cycle Perspective
Creators: name: JUBAYED, MD
name: SIEBRING, Rinus
name: LEONARD, Angélique
Publisher: name: Zenodo
Year: 2023
Subjects: Refractories
Magnesia-carbon bricks
LCA
Steel Ladle

description: The iron and steel industry is the biggest consumer of refractories, with around 70 of the total market share. Magnesia carbon (MgO-C) bricks are used in the slag line of a steel ladle. It is produced from high purity fused magnesia and graphite as a source of carbon. In general, refractory production processes (such as sintering, and fusion) are very energy intensive and usually have a high carbon footprint. Therefore, it is crucial to assess the life cycle environmental impact of refractories to identify ecological hotspots and to develop strategies to reduce impacts.
Desenvolvimiento comparativo del indice de costo de la construcción y el indice de precios al consumidor durante la década 1970 - 1979 en Barranquilla
Creators: name: Calderon Santos, Luis Eduardo
name: Ramirez Lastra, Rodrigo
Publisher: name: Universidad de Cartagena
Year: 1983
Subjects: Industria de la construcción

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1983.
description: El presente estudio tiene por objeto otorgar una visión integrada de la actividad constructora y basándose por ello en la evolución que ha tenido esta en la década de los 70 hasta 1982.
Hori-mological projective duality
Creators: name: Rennemo, Jørgen Vold
name: Segal, Ed
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14F05, 81T30, 16E35, 16S38

description: Kuznetsov has conjectured that Pfaffian varieties should admit non-commutative crepant resolutions which satisfy his Homological Projective Duality. We prove half the cases of this conjecture, by interpreting and proving a duality of non-abelian gauged linear sigma models proposed by Hori.
description: 55 pages. V2: slightly rewritten to take advantage of the `non-commutative Bertini theorem' recently proved by the authors and Van den Bergh. V3: lots of changes in exposition following referees' comments. Section 5 has been mostly cut because it was boring. To appear in Duke Math. J. V3: added funder acknowledgement
Challenges of Implementing a Program Management Office: The Case of Commercial Bank of Ethiopia
Creators: name: Tamene, Ethiopia
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Nowadays organizations which conducted project are beginning to understand the importance of project management office (PMO) for project success. But for PMOs to be successful; various internal and external factors must be taken in to consideration. The purpose of this study is to identify the challenges of implementing the Project Management Office in Commercial Bank of Ethiopia. The research is conducted in order to address the shortage of research in PMO especially in financial institutions. Descriptive research approach is selected for this study. Data is collected for the study using semi-structured interview. The collected Data was analyzed and interpreted using descriptive analysis technique. The study identified 11 challenges to implementing PMO. The top three challenges were difficulty of staffing the PMO with necessary personnel, lack of systematic knowledge management and absence of standardized project management tools and templates. The research findings will be expected to assist the bank and the Program Management Office in addressing the challenges properly. Based on this finding, recommendations are made to overcome these challenges. Accordingly, the PMO need to hire permanent PMO staffs to conduct the basic PMO activities, rigorously work on developing a systematic knowledge management and document lessons learned. It should also work on developing standardized tools template, provide project management training to the project managers
La salud ocupacional como elemento fundamental en la productividad de la microempresa en Cartagena
Creators: name: Forero Espinosa, Miguel Ángel
name: Paredes Ariza, Pedro
Publisher: name: Universidad de Cartagena
Year: 2000
Subjects: Salud ocupacional
Pequeña industria
Microempresas

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 concienciar a los microempresarios de Cartagena de la necesidad, obligatoriedad e importancia que posee la salud ocupacional y su influencia en la vida empresarial, como también desarrollar un método que permita minimizar o eliminar los riesgos de contraer enfermedades o sufrir accidentes relacionados con la productividad del sector microempresarial de Cartagena.
Recurrent Neural Networks to Correct Satellite Image Classification Maps
Creators: name: Maggiori, Emmanuel
name: Charpiat, Guillaume
name: Tarabalka, Yuliya
name: Alliez, Pierre
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: While initially devised for image categorization, convolutional neural networks (CNNs) are being increasingly used for the pixelwise semantic labeling of images. However, the proper nature of the most common CNN architectures makes them good at recognizing but poor at localizing objects precisely. This problem is magnified in the context of aerial and satellite image labeling, where a spatially fine object outlining is of paramount importance. Different iterative enhancement algorithms have been presented in the literature to progressively improve the coarse CNN outputs, seeking to sharpen object boundaries around real image edges. However, one must carefully design, choose and tune such algorithms. Instead, our goal is to directly learn the iterative process itself. For this, we formulate a generic iterative enhancement process inspired from partial differential equations, and observe that it can be expressed as a recurrent neural network (RNN). Consequently, we train such a network from manually labeled data for our enhancement task. In a series of experiments we show that our RNN effectively learns an iterative process that significantly improves the quality of satellite image classification maps.
Algunos aspectos del comportamiento del mercado de capitales de Colombia
Creators: name: Blanco Tuiran, Antonio J.
name: Canencia Lopez, Jose I.
Publisher: name: Universidad de Cartagena
Year: 1988
Subjects: Capital
Mercado de capitales - Colombia

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía.
description: El presente estudio tiene por objeto describir, interpretar y analizar el comportamiento de los aspectos mas relevantes acerca del desarrollo del mercado de capitales en Colombia.
Arithmetikunterricht modernisieren
Creators: name: Meissner, Hartwig
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2007
Subjects: subject: 510

description: In primary schools today we still teach arithmetic almost like we did 30 years ago when there were no calculators. But paper & pencil skills are not used any longer in daily life. How to modernize our arithmetic teaching? We will discuss three aspects: We need more mental arithmetic, a better number sense and more independence from the calculator.
description: Wir unterrichten in der Grundschule auch heute die vier Grundrechenarten praktisch wie vor 30 Jahren, als es noch keine Taschenrechner gab. Aber das Schriftliche Rechnen ist in Alltag und Beruf verschwunden. Wie sollte sich ein moderner Arithmetikunterricht dieser Situation anpassen? Wir diskutieren drei Schwerpunkte: Wir brauchen mehr Kopfrechnen, ein besseres Zahlgefühl und mehr Unabhängigkeit vom Taschenrechner.
The Effect Of Employee Engagement On Job Performance: The Case Of Ethiopian Private Banks
Creators: name: Abuna, Jemal
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The main objective of this paper is to examine the effect of Employee Engagement on Job Performance: The case of Ethiopian Private Banks. This study depends on data gathered from managers/supervisors, Professionals and Clerical employees of Head Office of the Ethiopian Private Banks. The study used quantitative research approach and Explanatory research design. The data used in the study was primary data collected through questionnaires adopted from prior literatures. The scope of the research was delimited to Head Office of the 16 private banks geographical and conceptually the three dimensions of employee engagement: vigor, dedication and absorption were used. The Utrecht Work Engagement Scale (UWES) was used to measure engagement level. Job Performance was measured through three dimensions: trait emotional intelligence, in-role performance and extra-role performance adopted from literatures. Information gathered from respondents using five points likert scale was analyzed using inferential and descriptive statistics. The findings of the study demonstrated that there was a positive effect of employee engagement on job performance. The result of the present study proposes the significance of employee engagement for the success of organizational performance through different contributions engaged employees deliver to their organizations
Holographic flows and thermodynamics of Polyakov loop impurities
Creators: name: Kumar, S. Prem
name: Silvani, Dorian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study holographic probes dual to heavy quark impurities interpolating between fundamental and symmetric/antisymmetric tensor representations in strongly coupled N=4 supersymmetric gauge theory. These correspond to non-conformal D3- and D5-brane probe embeddings in AdS_5 x S^5 exhibiting flows on their world-volumes. By examining the asymptotic regimes of the embeddings and the one-point function of static fields sourced by the boundary impurity, we conclude that the D5-brane embedding describes the screening of fundamental quarks in the UV into an antisymmetric source in the IR, whilst the non-conformal, D3-brane solution interpolates between the symmetric representation in the UV and fundamental sources in the IR. The D5-brane embeddings exhibit nontrivial thermodynamics with multiple branches of solutions, whilst the thermal analogue of the interpolating D3-brane solution does not appear to exist.
description: 28 pages, 7 figures, references added, version published in JHEP
Complex Chern-Simons and Gribov
Creators: name: Amaral, M. M.
name: Lemes, V. E. R.
name: Ventura, O. S.
name: Vilar, L. C. Q.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore a contact point between two distinct approaches to the confinment problem. We show that BLG-ABJM like theories generate gauge propagators with just the complex pole structure prescribed by the Gribov scenario for confinemnt. This structure, known as i-particles in Gribov-Zwanziger theories, effectively allows the definition of composite operators with a positive Källén-Lehmann spectral representation for their two-point functions . Then, these operators satisfy the criteria to describe glue-ball condensates. We calculate the (first order) contribution to the two-point function of the gauge invariant condensate in an ABJM environment, showing its interpretation as a physical particle along Källén-Lehmann. In the meantime, we argue for the necessity of absorbing Witten's work on holomorphic complex theories in order to settle the physical interpretation of this non-perturbative scenario.
description: No figures latex
Characterization of Bacillus pumilus Strains Isolated from Bovine Uteri
Creators: name: Ballas, Panagiotis
name: Gabler, Christoph
name: Wagener, Karen
name: Drillich, Marc
name: Ehling-Schulz, Monika
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: endometritis
subject: Bacillus pumilus
subject: pathogenicity
subject: cell infection assays
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::636 Viehwirtschaft

description: Uterine infections are a major source of economic losses to dairy farmers. The uterine microbiota as well as opportunistic uterine contaminants can contribute to the development of endometritis in dairy cows during the postpartum period. Therefore, it is important to characterize potential pathogens and to further elucidate their role in the disease. In this study, we aimed to characterize Bacillus pumilus field isolates to obtain more details regarding their effect on uterine cells by using an in vitro endometrial epithelial primary cells model. We found that B. pumilus isolates possessed the keratinase genes ker1 and ker2 and therefore may produce keratinases. When primary endometrial epithelial cells were infected with 4 different B. pumilus strains, an effect on cellular viability was observed over the course of 72 h. The effect was dose-dependent and time-dependent. Nevertheless, significant differences between the strains were not observed. All tested strains reduced the viability of the primary cells after 72 h of incubation, indicating that B. pumilus potentially has a pathogenic effect on endometrial epithelial cells.
Semi-equivelar and vertex-transitive maps on the torus
Creators: name: Datta, Basudeb
name: Maity, Dipendu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C20, 52B70, 51M20, 57M60

description: A vertex-transitive map $X$ is a map on a closed surface on which the automorphism group ${\rm Aut}(X)$ acts transitively on the set of vertices. If the face-cycles at all the vertices in a map are of same type then the map is said to be a semi-equivelar map. Clearly, a vertex-transitive map is semi-equivelar. Converse of this is not true in general. We show that there are eleven types of semi-equivelar maps on the torus. Three of these are equivelar maps. It is known that two of the three types of equivelar maps on the torus are always vertex-transitive. We show that this is true for the remaining one type of equivelar map and one other type of semi-equivelar maps, namely, if $X$ is a semi-equivelar map of type $[6^3]$ or $[3^3, 4^2]$ then $X$ is vertex-transitive. We also show, by presenting examples, that this result is not true for the remaining seven types of semi-equivelar maps. There are ten types of semi-equivelar maps on the Klein bottle. We present examples in each of the ten types which are not vertex-transitive.
description: Corrected an error in Lemma 2.2
Dating multiple change points in the correlation matrix
Creators: name: Galeano, Pedro
name: Wied, Dominik
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: binary segmentation algorithm
subject: nonparametric estimation
subject: multiple change point detection
subject: financial returns
subject: CUSUM statistics
subject: correlation matrix
subject: 310
subject: 330
subject: 620

description: We propose a nonparametric procedure for detecting and dating multiple change points in the correlation matrix of a sequence of random variables. The procedure is based on a test for changes in correlation matrices at an unknown point in time recently proposed by Wied (2014). Although the procedure requires constant expectations and variances, only mild assumptions on the serial dependence structure are assumed. We show the validity of the procedure including the convergence rate of the change point estimators. Moreover, we illustrate its performance in finite samples by means of a simulation study and the analysis of a real data example with financial returns. These examples show that the proposed algorithm has large power in finite samples.
description: Discussion Paper / SFB 823;18/2014
Cross-Sectional Microhardness of Area Adjacent to Cemented Bands
Creators: name: Somkamol Vanichvatana
Publisher: name: The Dental Association of Thailand
Year: 2020
Subjects: Enamel demineralization
Orthodontic band cement
Cross-sectional microhardness

description: Journal of The Dental Association of Thailand, 70, 3, 230-242
Efecto del entorno en la velocidad para carretera de dos carriles: Fase II
Creators: name: Amador Martinez, Edgardo
name: Girado Marrugo, Virgilio
Publisher: name: Universidad de Cartagena
Year: 1997
Subjects: Ingeniería de transito - Colombia
Transporte
Vías - Transito
Vías de tráfico

description: Tesis (Ingeniero Civil).--Universidad de Cartagena. Facultad de Ciencias E Ingeniería. Programa de Ingeniería Civil, 1997.
description: El presente estudio tiene por objeto cuantificar la incidencia de los corredores paraderos en la velocidad de los vehículos, para terreno plano,en carretera de dos carriles, debido al efecto del entorno en determinados tramos de la vía.
Antiferromagnetic insulatronics: spintronics in insulating 3d metal oxides with antiferromagnetic coupling
Creators: name: Meer, H.
name: Gomonay, O.
name: Wittmann, A.
name: Kläui, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Antiferromagnetic transition metal oxides are an established and widely studied materials system in the context of spin-based electronics, commonly used as passive elements in exchange bias-based memory devices. Currently, major interest has resurged due to the recent observation of long-distance spin transport, current-induced switching, and THz emission. As a result, insulating transition metal oxides are now considered to be attractive candidates for active elements in novel spintronic devices. Here, we discuss some of the most promising materials systems and highlight recent advances in reading and writing antiferromagnetic ordering. This article aims to provide an overview of the current research and potential future directions in the field of antiferromagnetic insulatronics.
Escape Routes, Weak Links, and Desynchronization in Fluctuation-driven Networks
Creators: name: Schäfer, Benjamin
name: Matthiae, Moritz
name: Zhang, Xiaozhu
name: Rohden, Martin
name: Timme, Marc
name: Witthaut, Dirk
Publisher: name: arXiv
Year: 2016
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Shifting our electricity generation from fossil fuel to renewable energy sources introduces large fluctuations to the power system. Here, we demonstrate how increased fluctuations, reduced damping and reduced intertia may undermine the dynamical robustness of power grid networks. Focusing on fundamental noise models, we derive analytic insights into which factors limit the dynamic robustness and how fluctuations may induce a system escape from an operating state. Moreover, we identify weak links in the grid that make it particularly vulnerable to fluctuations. These results thereby not only contribute to a theoretical understanding of how fluctuations act on distributed network dynamics, they may also help designing future renewable energy systems to be more robust.
description: 5 pages, 4 figures plus 3 pages Supplemental Material (incl. 4 figures)
Prognostische Validität mathematikdidaktischen Wissens angehender Erzieher/-innen – Studiendesign und Datengrundlage
Creators: name: Dunekacke, Simone
name: Jenßen, Lars
name: Grassmann, Marianne
name: Blömeke, Sigrid
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: Erzieher/-innen sollen auch Lernprozesse im Bereich der Mathematik begleiten (van Oers, 2009), da diese von Bedeutung für das aktuelle und spätere Mathematiklernen der Kinder sind (Krajewski & Schneider, 2009). Welche Kompetenzen die Erzieher/-innen hierfür benötigen, ob sie diese im Rahmen ihrer Ausbildung erwerben und wie sich diese entwickeln ist bislang kaum Gegenstand der Forschung (Fried & Roux, 2009; National Advisory Panel, 2008). An dieser Stelle setzt das Projekt KomMa an, das vom BMBF im Rahmen der Förderinitiative KoKoHs gefördert wird und Kompetenzstruktur, -niveau und -entwicklung angehender frühpädagogischer Fachkräfte untersucht.
Incidencia de despertar intraoperatorio y frecuencia de factores de riesgo en pacientes bajo anestesia general balanceada en el Hospital Universitario del Caribe
Creators: name: Florez Ballestas, Javier Enrique
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Anestesia
Efectos de la anastesia
Complicaciones
Pacientes

description: Tesis ( Especialista en Anestesiologia y Reanimación ) -- Universidad de Cartagena, Facultad de Medicina, 2016
description: El objetivo de esta investigación se centró en comparar la incidencia de DIO en esta institución con la reportada en la literatura mundial y determinar cuáles son los factores de riesgo más frecuentes asociados a este evento..
Index Characterization for Free Boundary Minimal Surfaces
Creators: name: Tran, Hung
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 49Q05

description: In this paper, we compute the Morse index for a free boundary minimal submanifold from data of two simpler problems. The first one is the corresponding problem with fixed boundary condition; and the second is associated with the Dirichlet-to-Neumann map for Jacobi fields. As an application, we show that the Morse index of a free boundary minimal annulus is equal to 4 if and only if it is the critical catenoid.
description: fixed several typos regarding the nullity and others
Relationship between Training and Development and Bank performance: The Case of Commercial Bank of Ethiopia, Bishoftu Town
Creators: name: Amergo, Yodit
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This study tried to assess relationship between training and development and bank performance: The case of Commercial Bank of Ethiopia, Bishoftu area in six branches. The main objective of training and development is to improve employee knowledge and the skills for their better performance and organizational performance. The researcher has been used questionnaire and semi-structured interview for non-managers and manager of the bank to get information for this research. Simple random sampling technique was used and the number of participants' was 132 respondents for the self-administered questionnaires and for the face to face interview that made with managers. The researcher used descriptive analysis with the help of frequency tables and percentages to analyze the data. The major finding reveals that training and development need assessment was not participatory, not offering training opportunities based on training need assessment, TD not continuous process, lack of planning in advance, absence of trainees' evaluation practice at different phases, lack of attentions by leaders and lack of collecting feedback, suitable training facility, The findings on the relationship between training and development and bank performance are generally significant and belief of top level management on the importance of TD to organizational performance. The correlation analysis result shows that the relationship between dependent and independent variables are positively and significantly correlated. The recommendations made for addressing issues were, conduct periodic training needs assessment, the CBE should conduct effective training and development evaluation, participate trainees in all the training and development process, provide continuous training opportunities, see all employees equally, and improve the capacity of trainees in all the training and development process
Frustrated S=1/2 Two-Leg Ladder with Different Leg Interactions
Creators: name: Tonegawa, Takashi
name: Okamoto, Kiyomi
name: Hikihara, Toshiya
name: Sakai, Tôru
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore the ground-state phase diagram of the $S\!=\!1/2$ two-leg ladder with different isotropic leg interactions and uniform anisotropic rung ones, which is described by the Hamiltonian ${\cal H}=J_{{\rm l},a} \sum\nolimits_{j=1}^{L}{\vec S}_{j,a}\cdot {\vec S}_{j+1,a}+J_{{\rm l},b} \sum\nolimits_{j=1}^{L} {\vec S}_{j,b}\cdot {\vec S}_{j+1,b}+J_{\rm r} \sum\nolimits_{j=1}^{L} \bigl\{S_{j,a}^x S_{j,b}^x + S_{j,a}^y S_{j,b}^y + ΔS_{j,a}^z S_{j,b}^z \bigr\}$. This system has a frustration when $J_{{\rm l},a} J_{{\rm l},b}\!
Compilación de informes de los gobernadores de la provincia de Barranquilla en el estado soberano de Bolívar, 1870 - 1886
Creators: name: Castillo Castilla, Juan Carlos
Publisher: name: Universidad de Cartagena
Year: 2002
Subjects: Barranquilla (Colombia) - Historia, 1870-1886

description: Tesis (Historiador) -- Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Historia, 2002
description: Fue precisamente en el periodo que abarca este trabajo, que Barranquilla deja rezagada a sus rivales vecinas, Santa Marta y Cartagena. Se constituye económicamente en la provincia que más ingresos genera al estado soberano de Bolívar. Nace urbanísticamente con unas características distintivas verbigracia: su cosmopolitismo; se forma una élite política y comercial cada vez más poderosa, que empieza por presionar políticamente a las autoridades de Estado conscientes de su poderío y de la importancia de la importancia de Barranquilla como primer puerto del país, posteriormente con el apoyo de Núñez logra la anexión de la provincia de Sabanalarga a su territorio durante la división político administrativa.
Numerical Simulations Reproduce Field Observations Showing Transient Weakening During Shear Zone Formation by Diffusional Hydrogen Influx and H2O Inflow
Creators: name: Kaatz, Lisa
name: Schmalholz, S. M.
name: John, Timm
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: transient weakening
subject: dry granulite
subject: hydrogen Influx
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: Exposures on Holsnøy island (Bergen Arcs, Norway) indicate fluid infiltration through fractures into a dry, metastable granulite, which triggered a kinetically delayed eclogitization, a transient weakening during fluid-rock interaction, and formation of shear zones that widened during shearing. It remains unclear whether the effects of grain boundary-assisted aqueous fluid inflow on the duration of granulite hydration were influenced by a diffusional hydrogen influx accompanying the fluid inflow. To better estimate the fluid infiltration efficiencies and the parameter interdependencies, a 1D numerical model of a viscous shear zone is utilized and validated using measured mineral phase abundance distributions and H2O-contents in nominally anhydrous minerals of the original granulite assemblage to constrain the hydration by aqueous fluid inflow and diffusional hydrogen influx, respectively. Both hydrations are described with a diffusion equation and affect the effective viscosity. Shear zone kinematics are constrained by the observed shear strain and thickness. The model fits the phase abundance and H2O-content profiles if the effective hydrogen diffusivity is approximately one order of magnitude higher than the diffusivity for aqueous fluid inflow. The observed shear zone thickness is reproduced if the viscosity ratio between dry granulite and deforming, reequilibrating eclogite is ∼104 and that between dry granulite and hydrated granulite is ∼102. The results suggest shear velocities <10−2 cm/a, hydrogen diffusivities of ∼10−13±1 m2/s, and a shearing duration of <10 years. This study successfully links and validates field data to a shear zone model and highlights the importance of hydrogen diffusion for shear zone widening and eclogitization.
Fuentes de financiamiento para la pequeña industria de Cartagena 1981 - 1984
Creators: name: Molares Fernandez, Mabel
name: Ospina V, María Patricia
Publisher: name: Universidad de Cartagena
Year: 1985
Subjects: Microempresas
Pequeña Industria - Cartagena

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 1985
description: El propósito de este estudio es conocer las fuentes y los mecanismos de recursos financieros con que cuenta el sector de la pequeña empresa industrial de la ciudad de Cartagena. Buscando con ello determinar si están acordes con las necesidades del sector, de tal manera que sirvan de apoyo eficaz en la actual situación de recesión económica, brindando las condiciones y características mas convenientes para su desarrollo.
The choice of magnesia-carbon refractories for steel ladle lining: a life cycle perspective
Creators: name: JUBAYED, MD
name: SIEBRING, Rinus
name: LEONARD, Angélique
Publisher: name: Zenodo
Year: 2023
Subjects: Refractories, Magnesia-carbon bricks, LCA, Steel Ladle

description: The Choice of Magnesia-Carbon Refractories for Steel Ladle Lining: a Life Cycle Perspective
El baúl literario una estrategia pedagógica para mejorar la comprensión lectora de los estudiantes de grado tercero de básica primaria, de la Institución Educativa Técnica en Gestión Empresarial Gabriela Mistral.
Creators: name: Marimon Valencia, Ana Cristina
name: Rhenals Díaz, Carol Inés
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Lectura - Enseñanza correctiva
Libros de lectura para niños
Lectura - Pruebas de aptitud

description: Tesis (Licenciada en Educación Básica con Énfasis en Lengua Castellana) -- Universidad de Cartagena en Convenio con la Universidad del Tolima de. Facultad de Ciencias Sociales y Educación. Licenciatura en Educación Básica con Énfasis en Lengua Castellana, 2016
description: La presenten investigación se centra en estrategias didácticas utilizando la literatura como herramienta motivacional del proceso lector de los estudiantes.