cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gigantic Anisotropy of Self-Induced Spin-Orbit Torque in Weyl Ferromagnet Co2MnGa
Creators: name: Aoki, Motomi
name: Yin, Yuefeng
name: Granville, Simon
name: Zhang, Yao
name: Medhekar, Nikhil V.
name: Leiva, Livio
name: Ohshima, Ryo
name: Ando, Yuichiro
name: Shiraishi, Masashi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spin-orbit torque (SOT) is receiving tremendous attention from both fundamental and application-oriented aspects. Co2MnGa, a Weyl ferromagnet that is in a class of topological quantum materials, possesses cubic-based high structural symmetry, the L21 crystal ordering, which should be incapable of hosting anisotropic SOT in conventional understanding. Here we show the discovery of a gigantic anisotropy of self-induced SOT in Co2MnGa. The magnitude of the SOT is comparable to that of heavy metal/ferromagnet bilayer systems despite the high inversion symmetry of the Co2MnGa structure. More surprisingly, a sign inversion of the self-induced SOT is observed for different crystal axes. This finding stems from the interplay of the topological nature of the electronic states and their strong modulation by external strain. Our research enriches the understanding of the physics of self-induced SOT and demonstrates a versatile method for tuning SOT efficiencies in a wide range of materials for topological and spintronic devices.
description: 15pages, 4figures (To appear Nano Lett.)
Diffusion of an Enzyme: the Role of Fluctuation-Induced Hydrodynamic Coupling
Creators: name: Illien, Pierre
name: Adeleke-Larodo, Tunrayo
name: Golestanian, Ramin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The effect of conformational fluctuations of modular macromolecules, such as enzymes, on their diffusion properties is addressed using a simple generic model of an asymmetric dumbbell made of two hydrodynamically coupled subunits. It is shown that equilibrium fluctuations can lead to an interplay between the internal and the external degrees of freedom and give rise to negative contributions to the overall diffusion coefficient. Considering that this model enzyme explores a mechanochemical cycle, we show how substrate binding and unbinding affects its internal fluctuations, and how this can result in an enhancement of the overall diffusion coefficient of the molecule. These theoretical predictions are successfully confronted with recent measurements of enzyme diffusion in dilute conditions using fluorescence correlation spectroscopy.
Educando en positivo: Informe de gestión de prácticas profesionales en el corregimiento de la boquilla y las veredas: puerto rey, tierra baja y manzanillo mar desde fundación proboquilla
Creators: name: Pérez Martínez, Lery Luz
name: Jonnys Ruiz, Daneth Margarita
Publisher: name: Universidad de Cartagena
Year: 2012
Subjects: Trabajo social - Casos

description: Tesis (Trabajador(a) Social) -- Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Programa de Trabajo Social, 2012
description: En primer lugar se hace un reconocimiento de la Institución en la Comunidad, donde se refleja un bagaje general de la comunidad del corregimiento de la Boquilla, así como los de la Fundación, añadiendo los programas y proyectos que maneja en pro de la comunidad y sus veredas (Tierra Baja, Puerto Rey, Manzanillo del Mar y Zapatero). Seguido, se muestra el aspecto relacionado con El Trabajo Social en Proboquilla, el cual dará una mirada al Roll del (la) Trabajadora Social de la Fundación y las funciones actuales que esta desempeña. Por otro lado, se enmarca lo concerniente al Informe de Gestión como tal, en el que se incluye el Proceso de Practicas dentro de las actividades o líneas de trabajo en las que se tuvo inmersión, como, la Estrategia AIEPI, Rincones Lúdicos y Fábrica de Valores, dentro de estos mismos, se manejaron aspectos como Problemas y Necesidades, Marco Referencial y Legal, Plan de Actividades y Resultado.
Two-stage, low noise quantum frequency conversion of single photons from silicon-vacancy centers in diamond to the telecom C-band
Creators: name: Schäfer, Marlon
name: Kambs, Benjamin
name: Herrmann, Dennis
name: Bauer, Tobias
name: Becher, Christoph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The silicon-vacancy center in diamond holds great promise as a qubit for quantum communication networks. However, since the optical transitions are located within the visible red spectral region, quantum frequency conversion to low-loss telecommunication wavelengths becomes a necessity for its use in long-range, fiber-linked networks. This work presents a highly efficient, low-noise quantum frequency conversion device for photons emitted by a silicon-vacancy (SiV) center in diamond to the telecom C-band. By using a two-stage difference-frequency mixing scheme SPDC noise is circumvented and Raman noise is minimized, resulting in a very low noise rate of $10.4 \pm 0.7$ photons per second as well as an overall device efficiency of $35.6\, \%$. By converting single photons from SiV centers we demonstrate the preservation of photon statistics upon conversion.
description: 12 pages, 3 figures
Rediseño organizacional del Instituto Técnico del litoral de la ciudad de Cartagena
Creators: name: López Barcerna, Bernardo
name: Romero Pérez, Marco
Publisher: name: Universidad de Cartagena
Year: 2004
Subjects: Organización industrial
Planificación
Investigación Organizacional

description: Tesis ( Admnistrador Industrial ) -- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración Industrial. 2004
description: Un gran pensador inglés dijo que la verdadera Universidad hoy día son los libros, y esta verdad, a pesar del desarrollo que modernamente han tenido las instituciones educativas, en la actualidad es más cierta que nunca, haciendo referencia también a la investigación, como paso agigantado de la cultura. Nada aprende mejor el hombre que lo que aprende por sí mismo, lo que le exige un esfuerzo personal de búsqueda y de asimilación, y si los maestros sirven de guías y orientadores, las fuentes perennes del conocimiento están en los libros de investigación. Para la mayoría de los hombres el ejercicio de la cultura es una parte vital, puesto que viven dentro de una cultura, de un mundo cada vez más interdependiente y solidario y en el que la cultura es una necesidad cada día más general. Ignorar los cimientos sobre los cuales ha podido levantar su edificio admirable el espíritu del hombre es permanecer en cierto modo al margen de la vida, amputado de uno de sus elementos esenciales, renunciando voluntariamente a lo único que puede ampliar nuestra mente hacia el pasado y ponerla en condiciones de mejor encarar el porvenir. En este sentido, se puede decir con razón que sólo vive el que sabe. El desarrollo de éste proyecto se evidencia en la necesidad de buscar una solución a los problemas organizacionales del Instituto Técnico del Litoral de la ciudad de Cartagena, a través de un rediseño organizacional, para facilitar la actividad de los empleados, mejorar el desarrollo de sus tareas, la prestación de los servicios institucionales y propiciar la disminución del tiempo de realización de tareas.
INFLUENCE OF JOB SATISFACTION ON ORGANIZATIONAL COMMITMENT OF EMPLOYEES AT ETHIOPIAN MANAGEMENT INSTITUTE
Creators: name: Adhana, Hayget
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The study examined the influence of job satisfaction on organizational commitment of employees in Ethiopian Management Institute. The data was collected through self administered questionnaire from 162 respondents. The instruments used for data collection were Meyer, Allen, and Smith (1993) 18 item revised version of the three component organizational commitment questionnaire and Spector(1985) job satisfaction survey(JSS)tool. Spearman's Rank Correlation Statistical tool and linear regression were used to test the hypotheses. The finding revealed that there is moderate level of employees organizational commitment and the commitment profile of the institute can be plotted as moderate affective organizational commitment, moderate normative organizational commitment and low continuance organizational commitment. According to the result of the study Job satisfaction level of employees in the institute is moderate. And significant positive relationship was found between job satisfaction and organizational commitment and its two constructs i.e., affective and normative organizational commitment and no significant relationship was found with continuance organizational commitment. Significant relationship was found between job satisfaction factors such as, pay, promotion, supervision, fringe benefits, co-workers, nature of work and communication and organizational commitment, affective and normative organizational commitment. Statically significant positive relationship was found for continuance organizational commitment with pay and fringe benefit only. No statistically significant relationship was found between job satisfaction factors such as contingent reward and operating procedure with organizational commitment, affective, normative and continuance organizational commitment. The result of the study also revealed that job satisfaction is a major predictor of orga
Varias nociones de diferenciabilidad
Creators: name: Plaza Mercado, Michael Alfonso
Publisher: name: Universidad de Cartagena
Year: 2004
Subjects: Cálculo diferencial para Ingenieros
Diferenciaciones
Nociones de diferenciabilidad

description: Tesis (Matemático).--Universidad de Cartagena. Facultad de Ciencias Exactas y Naturales. Programa de Matemáticas, 2004
description: El presente estudio tiene por objeto generalizar la diferenciabilidad de las funciones R en R, con la finalidad de que al verificarse la hipótesis de existencia y continuidad de la derivadas parciales, se satisfaga la condición de la diferencialidad en todos los puntos de un conjuntos abierto junto con la propiedad de continuidad de la diferencia.
Robust predictions for an oscillatory bispectrum in Planck 2015 data from transient reductions in the speed of sound of the inflaton
Creators: name: Torrado, Jesus
name: Hu, Bin
name: Achucarro, Ana
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We update the search for features in the Cosmic Microwave Background (CMB) power spectrum due to transient reductions in the speed of sound, using Planck 2015 CMB temperature and polarisation data. We enlarge the parameter space to much higher oscillatory frequencies of the feature, and define a robust prior independent of the ansatz for the reduction, guaranteed to reproduce the assumptions of the theoretical model and exhaustive in the regime in which the feature is easily distinguishable from the baseline cosmology. We find a fit to the $\ell\approx20$--$40$ minus/plus structure in Planck TT power spectrum, as well as features spanning along the higher $\ell$'s ($\ell\approx100$--$1500$). For the last ones, we compute the correlated features that we expect to find in the CMB bispectrum, and asses their signal-to-noise and correlation to the ISW-lensing secondary bispectrum. We compare our findings to the shape-agnostic oscillatory template tested in Planck 2015, and we comment on some tantalising coincidences with some of the traits described in Planck's 2015 bispectrum data.
description: 19 pages - matches published version
Observation of $π$ solitons in oscillating waveguide arrays
Creators: name: Arkhipova, Antonina A.
name: Zhang, Yiqi
name: Kartashov, Yaroslav V.
name: Zhuravitskii, Sergei A.
name: Skryabin, Nikolay N.
name: Dyakonov, Ivan V.
name: Kalinkin, Alexander A.
name: Kulik, Sergei P.
name: Kompanets, Victor O.
name: Chekalin, Sergey V.
name: Zadkov, Victor N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Floquet systems with periodically varying in time parameters enable realization of unconventional topological phases that do not exist in static systems with constant parameters and that are frequently accompanied by appearance of novel types of the topological states. Among such Floquet systems are the Su-Schrieffer-Heeger lattices with periodically-modulated couplings that can support at their edges anomalous $π$ modes of topological origin despite the fact that the lattice spends only half of the evolution period in topologically nontrivial phase, while during other half-period it is topologically trivial. Here, using Su-Schrieffer-Heeger arrays composed from periodically oscillating waveguides inscribed in transparent nonlinear optical medium, we report experimental observation of photonic anomalous $π$ modes residing at the edge or in the corner of the one- or two-dimensional arrays, respectively, and demonstrate a new class of topological $π$ solitons bifurcating from such modes in the topological gap of the Floquet spectrum at high powers. $π$ solitons reported here are strongly oscillating nonlinear Floquet states exactly reproducing their profiles after each longitudinal period of the structure. They can be dynamically stable in both one- and two-dimensional oscillating waveguide arrays, the latter ones representing the first realization of the Floquet photonic higher-order topological insulator, while localization properties of such $π$ solitons are determined by their power.
description: 10 pages, 6 figures, to appear in Science Bulletin
La actividad aseguradora en la ciudad de Cartagena frente al proceso de apertura económica
Creators: name: Taron Dunoyer, Irina
name: Angulo Novoa, Jesús
Publisher: name: Universidad de Cartagena
Year: 1997
Subjects: Apertura económica
Libre comercio

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 1997
description: El presente estudio tiene por objeto determinar la forma como las compañías aseguradoras han afrontado el reto de la libre competencia, la modernización y la autonomía empresarial y de gestión, ante la necesidad de adaptarse a los cambios y sobrevivir en el entorno.
Sensitivity of quantum walks to boundary of two-dimensional lattices: approaches from the CGMV method and topological phases
Creators: name: Endo, Takako
name: Konno, Norio
name: Obuse, Hideaki
name: Segawa, Etsuo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we treat quantum walks in a two-dimensional lattice with cutting edges along a straight boundary introduced by Asboth and Edge (2015 Phys.Rev. A 91 022324) in order to study one-dimensional edge states originating from topological phases of matter and to obtain collateral evidence of how a quantum walker reacts to the boundary. Firstly, we connect this model to the CMV matrix, which provides a 5-term recursion relation of the Laurent polynomial associated with spectral measure on the unit circle. Secondly,we explicitly derive the spectra of bulk and edge states of the quantum walk with the boundary using spectral analysis of the CMV matrix. Thirdly, while topological numbers of the model studied so far are well-defined only when gaps in the bulk spectrum exist, we find a new topological number defined only when there are no gaps in the bulk spectrum. We confirm that the existence of the spectrum for edge states derived from the CMV matrix is consistent with the prediction from a bulk-edge correspondence using topological numbers calculated in the cases where gaps in the bulk spectrum do or do not exist. Finally, we show how the edge states contribute to the asymptotic behavior of the quantum walk through limit theorems of the finding probability. Conversely, we also propose a differential equation using this limit distribution whose solution is the underlying edge state.
description: 42 pages, 8 figures
Interface Modification for Energy Levels Alignment and Charge Extraction in CsPbI$_3$ Perovskite Solar Cells
Creators: name: Iqbal, Zafar
name: Zu, Fengshuo
name: Musiienko, Artem
name: Partida, Emilio Gutierrez
name: Kobler, Hans
name: Gries, Thomas W.
name: Sannino, Gennaro V.
name: Canil, Laura
name: Koch, Norbert
name: Stolterfoht, Martin
name: Neher, Dieter
name: Pavone, Michele
name: Munoz-Garcia, Ana Belen
name: Abate, Antonio
name: Wang, Qiong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In perovskite solar cells (PSCs) energy levels alignment and charge extraction at the interfaces are the essential factors directly affecting the device performance. In this work, we present a modified interface between all-inorganic CsPbI$_3$ perovskite and its hole selective contact (Spiro-OMeTAD), realized by a dipole molecule trioctylphosphine oxide (TOPO), to align the energy levels. On a passivated perovskite film, by n-Octyl ammonium Iodide (OAI), we created an upward surface band-bending at the interface by TOPO treatment. This improved interface by the dipole molecule induces a better energy level alignment and enhances the charge extraction of holes from the perovskite layer to the hole transport material. Consequently, a Voc of 1.2 V and high-power conversion efficiency (PCE) of over 19% were achieved for inorganic CsPbI$_3$ perovskite solar cells. Further, to demonstrate the effect of the TOPO dipole molecule, we present a layer-by-layer charge extraction study by transient surface photovoltage technique (trSPV) accomplished by charge transport simulation.
description: 20 pages, 4 Figures
Die hydrophobe fest-flüssig-Grenzfläche unter hohem hydrostatischen Druck
Creators: name: Wirkert, Florian Josef
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: Hydrophobes Gap
subject: Hydrostatischer Hochdruck
subject: Röntgen-Reflektivität
subject: 530
subject: Hydrostatischer Druck
subject: Grenzfläche
subject: Hydrophobie
subject: Synchrotronstrahlung

description: Im Rahmen dieser Arbeit wurde die Grenzfläche zwischen hydrophoben Oberflächen und Wasser experimentell untersucht. Es wurde das Verhalten der an der Grenzfläche auftretenden Schicht geringer Dichte, des sogenannten hydrophoben Gaps, unter hohen hydrostatischen Drücken bis zu 5 kbar studiert. Als Modellsystem diente ein mit einer molekularen Monolage Octadecyltrichlorosilan (OTS) beschichteter Siliziumwafer in Kontakt mit Wasser. Die Untersuchungen wurden mittels Röntgen-Reflektometrie (XRR) durchgeführt. Hierfür wurde die erste Hochdruck-XRR-Probenzelle angefertigt, die bis zu einem Druck von 5 kbar arbeitet. Die erhaltenen Ergebnisse zeigen, dass das hydrophobe Gap bis zu einem Druck von ca. 1,5 kbar stärker komprimiert wird als das umgebende Volumenwasser, während das hydrophobe Gap bei höheren Drücken weniger stark komprimiert wird. Das deutet darauf hin, dass bei Umgebungsdruck eine im Vergleich zu Volumenwasser offenere Netzwerkstruktur des Wassers an der Grenzfläche vorliegt, die bei hohem hydrostatischen Druck zumindest teilweise geschlossen wird. Weiterhin wurde der Einfluss kosmotroper und chaotroper Kosolvenzien auf die Struktur der hydrophoben fest-flüssig-Grenzfläche untersucht. Als Kosmotrop wurde Trimethylamin-N-Oxid (TMAO) und als Chaotrop Urea verwendet. Beide Stoffe adsorbierten an der Grenzfläche und erzeugten so eine lokal erhöhte Konzentration im Vergleich zur Volumenflüssigkeit. Die Kompressibilität der adsorbierten Schichten ist sowohl stoff- als auch konzentrationsabhängig, jedoch immer geringer als bei Volumenwasser.
Synthesis of shape-controlled palladium nanoparticles and their platinum-coated counterparts - the importance of the exposed facets and surfactant removal on the electrochemical characteristics
Creators: name: Nalajala, Naresh
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Shape-controlled Pd nanoparticles are synthesized using Cl- ions and the role of oxygen on the shape-control is established. The weakly adsorbing and strongly etching property of Cl- ions is exploited for the first time to synthesize different shapes (nanocubes, truncated octahedra, rods and MTPs) of Pd nanoparticles by varying its concentration. Tert-butyalmine (TBA) and NaBH4 treatments are developed for the removal of adsorbed impurities from the shape-controlled Pd nanoparticles. The surface-hydride of Pd is used to remove the adsorbed impurities and consequently to reduce Pt on Pd surface. The clean electrochemical features of the NaBH4 treated shape-controlled Pd nanoparticles confirms the removal of surface impurities, and the presence of Pt features with the various Pt-coated shape-controlled Pd nanoparticles indicate that Pt is successfully coated on the Pd surface. The shape of Pt-coated Pd nanoparticles and the presence of Pt on the Pd-surface are confirmed through various physical and electrochemical characterizations. Thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy of the Indian Institute of Technology Bombay, India and Monash University, Australia.
title: Hat die kongenitale Hüftgelenksdysplasie Einfluss auf die Größe des infraazetabulären Korridors im Hinblick auf die Versorgung von Azetabulumfrakturen – Eine 3D-radiomorphometrische Analyse
Creators: name: Arlt, Stephan
name: Noser, Hansrudi
name: Heinecke, Markus
name: Marintschev, Ivan
name: Hofmann, Gunther O.
name: Mendel, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Azetabulumfrakturen
subject: Hüftdysplasie
subject: Infraazetabulärer Korridor
subject: 610 Medical sciences; Medicine

description: Fragestellung: Die operative Versorgung von Azetabulumfrakturen (AF) stellt noch heute eine große Herausforderung für den Unfallchirurgen dar. Eine zusätzliche infraazetabuläre Schraube entlang der quadrilateralen Fläche (QF) kann die Stabilität der Osteosynthese durch [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
title: Darstellbarkeit von Schraubenperforationen bei winkelstabiler Plattenosteosynthese am proximale Humerus mit Hilfe eines 3D C Bogen eine in vitro Studie
Creators: name: Theopold, Jan
name: Weihs, Kevin
name: Marquaß, Bastian
name: Von Dercks, Nikolaus
name: Steinke, Hanno
name: Josten, Christoph
name: Hepp, Pierre
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Proximaler Humerus
subject: Schraubenperforation
subject: 3D Bildgebung
subject: 610 Medical sciences; Medicine

description: Fragestellung: Eine der häufigsten iatrogenen Komplikationen der winkelstabilen Plattenosteosynthesen am proximalen Humerus sind primäre und sekundäre Schraubenperforationen. Folge der Schraubenperforation ist die fatale Zerstörung der osteochondralen Gelenkflächen und führt[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
title: Klinische und radiologische Kriterien zur Differenzierung zwischen chronischer und traumatischer Rotatorenmanschettenruptur
Creators: name: Porschke, Felix
name: Magosch, Petra
name: Lichtenberg, Sven
name: Habermeyer, Peter
name: Loew, Markus
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Rotatorenmanschettenruptur
subject: traumatisch
subject: degenerativ
subject: Kinking
subject: MRT
subject: Supraspinatussehne
subject: 610 Medical sciences; Medicine

description: Fragestellung: Die Unterscheidung zwischen traumatischer und degenerativer Rotatorenmanschettenruptur (RMR) ist relevant in der Zusammenhangsbegutachtung aber auch für die Therapieplanung. Bisher sind weder klinische noch radiologische Faktoren, die eine Unterscheidung ermöglichen, evidenzbasiert[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
title: Polytrauma beim älteren Menschen
Creators: name: Heinrichs, Gerhard
name: Weilandt, Christian
name: Paech, Andreas
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Polytrauma
subject: Geriatrie
subject: Outcome
subject: 610 Medical sciences; Medicine

description: Fragestellung: Erfüllen die vorhandenen S3-Leitlinien die tatsächlichen Anforderungen an die Versorgung des polytraumatisierten älteren Menschen? Methodik: Literaturanalyse, Analyse der eigenen Behandlungszahlen Ergebnisse und Schlussfolgerung: Heutzutage rückt in [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
The effect of sensitisation on 5xxx series aluminium alloys
Creators: name: Zhang, Ruifeng
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Aluminium (Al) and its alloys represent the commodity ‘light metals’ and have had continued usage and intense interest from industry and the academic field since their large-scale industrial implementation commencing approximately 100 years ago. Various properties can be achieved in Al-alloys which arise from alloying with many other elements. Al-alloys can provide corrosion resistance, formability, weldability, strength and damage tolerance; however the actual combination of such properties is nominally a trade-off. As a result a wide range of carefully engineered Al-alloys are applied across different fields. This includes shipbuilding, where density, weldability, and corrosion resistance are key properties. Despite the advantages of Al-alloys in marine applications, severe intergranular corrosion (IGC) damage can take place after a prolonged service time at elevated temperature. This concern originates from a supersaturation of magnesium (Mg) in the common marine alloys (based on the Al-Mg system) which can form deleterious anodic Mg2Al3 β-phase) particles at grain boundaries. Herein, this process is termed “sensitisation” as it reflected a detrimental microstructural evolution. Although the β-phase evolution is the main factor for sensitisation induced damage, there are yet to be any critical studies on microstructural evolution prediction (experiment or modelling), in a deterministic sense. This project aims to cover the various principal factors that dictate microstructure and the influence upon intergraular corrosion from sensitisation. This is done with the view towards a science-based tangible and practical reversion heat treatment to repair sensitised Al-Mg alloys.
Fabrication of axi-symmetric hybrid materials using combination of shear and pressure
Creators: name: Sapanathan, Thaneshan
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Innovative manufacturing processes are considered as the alternate solutions to produce materials for the growing demand. Hybrid materials become attractive alternatives in engineering applications; they can provide multiple attributes in a single solution. Cladded hybrid rods and tubes, a special type of hybrid metals are fabricated using various techniques, such as extrusion, drawing, hydrostatic extrusion processes. From a literature survey, it was identified that new sophisticated processes are required to eliminate the existing issues in those hybrid metals manufacturing methods and to obtain the product with multiple attributes. Meanwhile, severe plastic deformation (SPD) processes are well known for delivering high strength processed materials because of their capability of producing materials with significant grain refinement. Therefore, two novel axi-symmetric SPD processes were investigated by utilizing the synergic effect of these processes in hybrid materials fabrications. Firstly, the axi-symmetric forward spiral composite extrusion process (AFSCE) was investigated for a fabrication of Al/Cu clad rods which produces the hybrid rods with good quality bond with bonding shear strength of ~50.5MPa. A dedicated blanking test was designed to evaluate the bond strength of the processed samples. AFSCE is also a near-zero shape change process and has better dimensional control on the core and clad of the products. The extruded samples were investigated using FIB, SEM, EDX, XRD, EBSD and micro-hardness test to characterize the bonded interface and parent materials. A cup shape hardness behavior of hardness was identified in both materials and ultrafine grain formation was confirmed in the copper region at the interface. Then a confined high pressure torsion process (CHPT), was used to fabricate Al/Cu cladded discs are presented in the 2nd part of the thesis. The CHPT process showed a significant improvement in the compacted aluminum powder samples and the powder regions of the Al/Cu clad components. The compacted Al powder samples have higher shear strength than Al alloy “AA5005-H34” and 5 times higher shear strength than pure bulk aluminum. The effective compaction of this process is promising for fabrication of high strength materials in an economical way which can eliminate the sintering process which is required for the traditional powder processing methods.
title: Kann mit einer Isolierstation die Rate nosokomialer Übertragungen von MRE reduziert werden?
Creators: name: Militz, Matthias
name: Maier, Doris
name: Hungerer, Sven
name: Werle, Regina
name: Bühren, Volker
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Isolierstation
subject: MRE
subject: Surveillance
subject: 610 Medical sciences; Medicine

description: Fragestellung: Die Isolierung von Patienten mit MRE ist nach den Richtlinien des RKI Bestandteil der Hygienemaßnahmen, die zur Verhinderung von nosokomialen Übertragungen von MRE zu veranlassen sind. Die Isolierung von Patienten auf der sog. Normalstation stellt die Patienten und das Personal[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Improvement of Energy and Nutrients Density of Sorghum Based Weaning Food Using Germination
Creators: name: Tizazu, Shimelis
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2009

description: Weaning foods prepared commercially are not available and if available, unaffordable for the poor in developing countries. Weaning foods prepared traditionally from locally available raw materials such as cereal and/or legume flours have a high viscosity when reconstituted, which limits the total food intake by the infants. Weaning foods from plant sources are also high in antinutrients content which decreases nutrients bioavailability. The main objective of this study was to investigate the possibilities of improving the energy and nutrients density of sorghumbased weaning foods using germination. Two varieties of sorghum (Sorghum bicolor) (L.) Moench) seeds (varieties 76T1#23 and Meko) were collected for this study. Sorghum seeds were cleaned, soaked for 22 hours at room temperature (22±20C) and germinated for 36 and 48 hours at the soaking temperature. The germinated seeds were dried at 550C for 24 hours and milled into flour. The ungerminated sorghum seeds were also dried at 550C for 2 hours and milled. Using ungerminated and geminated sorghum flour and blend of the two in ratios of 85:15, 75:25, 50:50 and 75:25, eleven weaning foods were formulated for each of the two sorghum varieties. Germination of sorghum seeds increased significantly (P<0.05) the contents (%) of crude protein from 12.25 to 12.65 and from 10.44 to 10.87; of total phosphorus (mg/100g)from 208.42 to 223.26 and from 183.04 to 193.56; non-phytate phosphorous from 95.95 to 169.69 and from 52.02 to 136.14; iron from 8.21 to 11.99 and 7.19 to 10.98; zinc from 1.86 to 2.01 and from 1.78 to 1.89; calcium from 17.09 to 25.93 and from 20.99 to 29.62 for varieties 76T1#23 and Meko, respectively. In contrast, germination of sorghum grain decreased phytic acid levels (mg/100g) from 399.12 to 190.11 and from 464.94 to 203.76 and (molar ratios) of phytate to iron from 4.12 VIII to 1.35 and from 5.49 to 1.58; phytate to zinc from 21.18 to 9.31 and from 25.72 to 10.64; and viscosity values (cP) at 13% dry matter concentration from 8689.74 to 2386.78 and from 8794.78 to 2415.19; at 5% dry matter concentration from 2893.78 to 1142.11 and from 2987.43 to 1149.2, respectively. The sensory panelists preferred the gruel that contained 15% of germinated sorghum flour for all the sensory attributes investigated; while gruels prepared from 100% germinated sorghum flour was least preferred. Hence, germination appeared to be a promising food processing method to improve the nutrients and energy density and to decrease phytate levels and viscosity values of weaning food gruels significantly and to increased food intake in infants.
Sliding mode observers for infinitely unobservable descriptor systems
Creators: name: Ooi, Jeremy Hor Teong
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: This thesis describes the use of a class of sliding mode observers for state and unknown input estimation for descriptor systems. Existing work has shown that suitable scaling of the equivalent output error injection term of the sliding mode observer can yield an accurate estimation of the unknown input. Work can also be found on the development of the sliding mode observer for the descriptor system, a variation of the regular state space which can better represent certain systems. The existing sliding mode observer design for the descriptor system requires global observability which can be restrictive. In this thesis, new methods are presented to achieve state and unknown input estimation using the sliding mode observer for a class of descriptor systems that is not globally observable. Reformulation is key to the approach and is made with the forethought of capitalising on the ability of the sliding mode observer to estimate unknown inputs. The reformulation is done by treating certain states as unknown inputs to obtain a fictitious system that is globally observable. Then using the existing work which assumes global observability, the sliding mode observer can be designed for the fictitious system to effectively estimate the states and unknown inputs of the original descriptor system that is not globally observable. It is crucial for the number of outputs to still be in excess of the number of unknown inputs in the course of formulating the fictitious system, as doing otherwise will violate one of the fundamental conditions that governs observer designs. While the idea of reformulation generally applies, each method (which is discussed in a separate chapter) employs a unique technique of reformulating the descriptor system, building up from a simpler technique to a more complex one. All the methods will be accompanied by their respective necessary and sufficient conditions in terms of the original system matrices so that the feasibility of applying any of them can be easily determined. The effectiveness of the schemes will then be verified using numerical examples.
title: Der mCT-Analyzer: eine neue Methode für die standardisierte, micro-Computer-Tomographie (mCT)-gestützte Evaluation der Struktureigenschaften von dreidimensionalen Knochenersatzstoffen
Creators: name: Westhauser, Fabian
name: Weis, Christian
name: Höllig, Melanie
name: Schmidmaier, Gerhard
name: Weber, Marc-André
name: Stiller, Wolfram
name: Kauczor, Hans-Ulrich
name: Moghaddam-Alvandi, Arash
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Micro-Computer-Tomographie (mCT)
subject: Imaging
subject: Biomaterialien
subject: Knochenersatzstoffe
subject: Bone Morphogenetic Protein-7 (BMP-7)
subject: 610 Medical sciences; Medicine

description: Fragestellung: Tissue Engineering am Knochengewebe und die Entwicklung optimaler Ersatzstoffe zur Füllung großer Knochendefekte stellen zwei der anspruchsvollsten Forschungsgebiete in Orthopädie und Unfallchirurgie dar und haben eine hohe klinische Relevanz. Für die nicht-invasive[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Founding a mathematical diffusion model in linguistics. The case study of German syntactic features in the North-Eastern Italian dialects
Creators: name: Lazzizzera, I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The initial motivation for this work was the linguistic case of the spread of Germanic syntactic features into Romance dialects of North-Eastern Italy, which occurred after the immigration of German people to Tyrol during the High Middle Ages. To obtain a representation of the data over the territory suitable for a mathematical formulation, an interactive map is produced as a first step, using tools of what is called Geographic Data Science. A smooth two-dimensional surface G is introduced, expressing locally which fraction of territory uses a given German language feature: it is obtained by a piecewise cubic curvature minimizing interpolant of the discrete function that says if at any surveyed locality that feature is used or not. This surface G is thought of as the value at the present time of a function describing a diffusion-convection phenomenon in two dimensions (here said tidal mode), which is subjected in a very natural way to the same equation used in physics, introducing a contextual diffusivity concept: it is shown that with two different assumptions about diffusivity, solutions of this equation, evaluated at the present time, fit well with the data interpolated by G, thus providing two convincing different pictures of diffusion-convection in the case under study, albeit simplifications and approximations. Very importantly, it is shown that the linguistic diffusion model known to linguists as Schmidt waves can be counted among the solutions of the diffusion equation
Phase transitions of extremal cuts for the configuration model
Creators: name: Dhara, Souvik
name: Mukherjee, Debankur
name: Sen, Subhabrata
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C80, 68R10, 68Q87

description: The $k$-section width and the Max-Cut for the configuration model are shown to exhibit phase transitions according to the values of certain parameters of the asymptotic degree distribution. These transitions mirror those observed on Erdős-Rényi random graphs, established by Luczak and McDiarmid (2001), and Coppersmith et al. (2004), respectively.
March 4 Thursday
Creators: name: Graves, Robert, 1895-1985
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Graves, Robert, 1895-1985
valueUri: http://id.worldcat.org/fast/31293
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Page from Robert Graves diary manuscript. The diary includes 1,546 pages with 117 enclosures: letters, clippings, photographs post cards, notes, games.
Piecewise Linear Functions Representable with Infinite Width Shallow ReLU Neural Networks
Creators: name: McCarty, Sarah
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Functional Analysis (math.FA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper analyzes representations of continuous piecewise linear functions with infinite width, finite cost shallow neural networks using the rectified linear unit (ReLU) as an activation function. Through its integral representation, a shallow neural network can be identified by the corresponding signed, finite measure on an appropriate parameter space. We map these measures on the parameter space to measures on the projective $n$-sphere cross $\mathbb{R}$, allowing points in the parameter space to be bijectively mapped to hyperplanes in the domain of the function. We prove a conjecture of Ongie et al. that every continuous piecewise linear function expressible with this kind of infinite width neural network is expressible as a finite width shallow ReLU neural network.
title: Vergleichende Analyse von Stammzellen verschiedener Spender in Hinsicht auf Alter, Geschlecht, Vorerkrankungen und Lebensweise
Creators: name: Noack, Sandra
name: Schäck, Luisa Marilena
name: Decker, Sebastian
name: Krettek, Christian
name: Neunaber, Claudia
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Stammzellen
subject: MSC
subject: Alter
subject: Geschlecht
subject: 610 Medical sciences; Medicine

description: Fragestellung: Knochendefekte durch ein Trauma, atrophen Infekt/Defektpseudarthrosen, Tumorresektionen, Knie- und Hüftrevisionen nach Prothesenimplantation und Knochenzysten sind ein häufiges Problem in der Unfallchirurgie und Orthopädie. Als Goldstandard zur Auffüllung und [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Manifolds which admit maps with finitely many critical points into spheres of small dimensions
Creators: name: Funar, Louis
name: Pintea, Cornel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R45, 57 R70, 58K05

description: We construct, for $m\geq 6$ and $2n\leq m$, closed manifolds $M^{m}$ with finite nonzero $φ(M^{m},S^{n}$), where $φ(M,N)$ denotes the minimum number of critical points of a smooth map $M\to N$. We also give some explicit families of examples for even $m\geq 6, n=3$, taking advantage of the Lie group structure on $S^3$. Moreover, there are infinitely many such examples with $φ(M^{m},S^{n})=1$. Eventually we compute the signature of the manifolds $M^{2n}$ occurring for even $n$.
description: Michigan Math. J., to appear, 21p
title: Stem cell effect is influenced by the degenerative state of intervertebral discs
Creators: name: Peroglio, Marianna
name: Caprez, Stephanie
name: Benneker, Lorin Michael
name: Alini, Mauro
name: Grad, Sibylle
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Intervertebral disc
subject: mesenchymal stem cells
subject: degeneration
subject: 610 Medical sciences; Medicine

description: Objectives: The use of mesenchymal stem cell (MSC) for the treatment of degenerative disc disease has been described in the literature. It has been suggested that MSCs could differentiate into disc-like cells or could release trophic factors that stimulate the resident disc cells in response to the [for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
El despertar de Eva : una comprensión del suicidio en jóvenes indígenas en los internados del Vaupés
Creators: name: Moreno Gualtero, Angie Carolina
Publisher: name: Unversidad Externado de Colombia
Year: 2022
Subjects: subject: Educación indígena
subject: Conflicto armado
subject: Hermenéutica
subject: Suicidio
subject: Indígenas
subject: Internados
subject: Institucionalización
subject: Blanqueamiento

description: Esta investigación pretende comprender la problemática del suicidio en jóvenes indígenas en los internados del Vaupés, a partir de la comprensión de los procesos de institucionalización, de los distintos escenarios de violencia y las trasformaciones culturales a los que se han visto expuestos los y las jóvenes en el departamento. Frente a ello, los internados como lugar de convergencia de visiones sobre la educación indígena y sobre qué tipo de personas se esperan que se formen allí, terminan impartiendo un modelo de vida dominante, cuyo destino final es ser como el blanco. Un blanqueamiento que termina respaldado por el discurso social y cultural de que la educación nos permite ser ‘alguien en la vida’ y ‘salir adelante’ en medio de la falta de oportunidades, de la violencia cotidiana y estructural que se vive en los territorios, de la desesperanza, el desespero y la soledad en la que se encuentran los y las jóvenes hoy en día.
description: This research aims to understand the problem of suicide in indigenous youth in the Vaupés boarding schools, based on the understanding of the institutionalization processes, the different scenarios of violence and the cultural transformations to which the young people in the Department. Faced with this, boarding schools as a place of convergence of visions on indigenous education and on what type of people are expected to be trained there, end up imparting a dominant life model, whose final destiny is to be like the white. A whitening that ends up supported by the social and cultural discourse that education allows us to be 'someone in life' and 'get ahead' in the midst of the lack of opportunities, of the daily and structural violence that is experienced in the territories, of hopelessness, despair and loneliness in which young people find themselves today.
La capacitación y desarrollo profesional del recurso humano de las entidades promotoras de salud - Eps de la ciudad de Cartagena.
Creators: name: Vitola B, Ivonne M
name: Forestieri, Jania M
Publisher: name: Universidad de Cartagena
Year: 2005
Subjects: Administración de personal
Recursos humanos
Capacitación de empleados

description: Tesis (Administrador de Empresas) -- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas. 2005
description: El presente estudio tiene por objeto diagnosticar la capacitación y desarrollo profesional del recurso humano de las empresas del subsector de las EPS de la ciudad de Cartagena para determinar su grado de aporte estratégico y la cualificación de su personal.
title: Site-specific effects of LPS on the alveolar epithelial-endothelial capillary barrier
Creators: name: Fuchs, Sabine
name: Harshavardhan, Janga
name: Ueckert, Larissa
name: Fitschen-Oestern, Stefanie
name: Steubesand, Nadine
name: Seekamp, Andreas
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: ARDS
subject: LPS
subject: alveolar barrier
subject: IL-6
subject: inflammation
subject: 610 Medical sciences; Medicine

description: Objectives: Alveolar epithelial cells mediate gaseous exchange in the lung and their dysfunction during acute lung injury/acute respiratory distress syndrome (ALI/ARDS) often leads to worse outcomes, especially when Lipopolysaccharides (LPS), bacterial endotoxins, occur as additional challengers[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)
Lack of didactic materials, an issue when teaching foreign languages at Madre Laura's high school.
Creators: name: Madrid, Nathalia
Publisher: name: University of Cartagena
Year: 2022
Subjects: subject: Materiales didácticos
subject: Enseñanza de lenguas extranjeras - Metodologia
subject: Aprendizaje de lenguas extranjeras
subject: Enseñanza de lenguas extranjeras - Estrategia

description: The purpose of this research is to analyse the lack of didactic materials as an issue when teaching foreign languages at Madre Laura's High School. The methodology implemented is action research, qualitative and ethnographic through the use of didactic teaching in order to understand and/or explain the behaviour, motivations and reactions of the target population study. For this, different types of data collection were used, such as a survey and a focus group. All results were tabulated separately, however, they were analysed quantitatively by using inferential statistics. As a result, most participants showed improvement during the English learning process therefore, meaningful changes in their English class performance were obtained