cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Changes in apoptotic factors in hypothalamus and hippocampus after acute and subchronic stress induction during conditioned place preference paradigm
Creators: name: Haghparast, Abbas
name: Fatahi, Zahra
name: Zeighamy Alamdary, Shabnam
name: Khodagholi, Fariba
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: apoptosis
subject: hypothalamus
subject: hippocampus
subject: forced swim stress
subject: conditioned place preference
subject: rat
subject: 610

description: The hypothalamus (HYP) and hippocampus (HIP) are important regions involved in stress responses. These areas are also associated with reward processing. In this study, the effects of acute and subchronic stress on the changes in apoptotic factors (Bax/Bcl-2 ratio, caspase-3 activation and PARP degradation) in the HYP and HIP during conditioned place preference (CPP) paradigm were evaluated. Male Wistar rats were divided into two saline- and morphine-reated supergroups. Each supergroup contained control, acute stress (AS) and subchronic stress (SS) groups. In all groups, CPP paradigm was done and thereinafter alterations of apoptotic factors were measured by western blot. The results revealed that in the HYP, all mentioned factors increased significantly in saline- or morphine-treated animals during AS and SS. On the other hand, in the HIP, Bax/Bcl-2 ratio in saline-treated animals increased significantly during AS and SS, while in morphine-treated animals this ratio did not have any significant alteration during AS and was decreased during SS compared with morphine-control group. Caspase-3 and PARP increased during AS and SS in saline- or morphine-treated animals. For example, caspase-3 increased during AS and SS in morphine-treated animals by 2.4 folds and PARP (89 KDa) increased by 3.1 and 3.5 folds, respectively. Interestingly, the increase of apoptotic factors in morphine-treated animals was more considerable than that of saline-treated animals. These results strongly implied that AS and SS trigger apoptotic events in the HYP and HIP of saline- and/or morphine-treated animals as well as morphine reinforces the effect of stress on the induction of apoptosis.
description: EXCLI Journal ; Vol. 12, 2013
Efficient Metric Learning for the Analysis of Motion Data
Creators: name: Hosseini, Babak
name: Hammer, Barbara
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We investigate metric learning in the context of dynamic time warping (DTW), the by far most popular dissimilarity measure used for the comparison and analysis of motion capture data. While metric learning enables a problem-adapted representation of data, the majority of methods has been proposed for vectorial data only. In this contribution, we extend the popular principle offered by the large margin nearest neighbors learner (LMNN) to DTW by treating the resulting component-wise dissimilarity values as features. We demonstrate that this principle greatly enhances the classification accuracy in several benchmarks. Further, we show that recent auxiliary concepts such as metric regularization can be transferred from the vectorial case to component-wise DTW in a similar way. We illustrate that metric regularization constitutes a crucial prerequisite for the interpretation of the resulting relevance profiles.
description: 23 pages, 8 figures, DSAA 2015 conference
Factibilidad para la re estructuración de el mercado publico de San Jacinto como un plan simplificado de desarrollo
Creators: name: Pereira Diaz, Esperanza
name: Vasquez Ramirez, Liliana
Publisher: name: Universidad de Cartagena
Year: 1992
Subjects: Estudio de mercado
Mercado publico - San Jacinto, (Bolívar) - Reestructuración

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1992.
description: El presente estudio tiene por objeto determinar la factibilidad de la reestructuraciòn de el mercado publico en el Municipio de San Jacinto como un plan simplificado de desarrollo municipal.
Assessment on the Supply Chain Performance of Anti TB Drugs in Public Health Facilities under City Government of Addis Ababa Health Bureau
Creators: name: Mekonen, Zebiba
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Supply chain performance is key for the success of health programs hence measuring performance is essential to identify system inefficiency and away to improve. The aim of this study was to assess the supply chain performance of Anti TB drugs in public health facilities under city government of Addis Ababa health bureau. A cross-sectional descriptive study was conducted at selected health facilities in Addis Ababa by using selected supply chain indicators. A total of sixty four facilities were selected by using stratified random sampling method. Structured questionnaires interviews, facility records and physical observation were used to collect quantitative data. The research revealed that all the hospital and health center studied had the necessary recording and reporting formats but the average percentage of facilities utilized bin card were 75% and 80.7% at hospital and health center. Updated bin card were 82.8% at hospital and 90.8% at health centers. Order entry accuracy in the RRF were 86.9 % and 92.5% at hospital and health centers respectively. All the hospitals and 93% of the health centers refilled in less than a month time. Percentage of facilities received based on the requested quantity was more than 80% both at the hospitals and health center. Average availability of Anti TB drugs on the day of visit were 72.5% and 68% at the hospital and health center respectively. Availability of pediatric formulation were low, only 40% of hospital and 43.3% of health centers had RH (60+30) mg tablet in the day of visit. Similarly only 20% of hospital and 17.5% of health center had pediatric tablet RHZ (60+30+150) on the day of visit. Availability of recording and reporting format is encouraging. However, their utilization and accuracy is relatively low. Order lead time is good but order fill rate needs improvement. Most facilities storage condition meet acceptable criteria but average availability of anti TB drug is low. Specially pediatric anti TB drugs are out of stock or not managed in majority of facilities in the day of visit and during the six month prior to the survey. Even though majority of the indicators shows supply chain improvement, huge gap observed in the availability of pediatric anti TB drugs. Significant number of health facilities stock out or not managed the pediatric formulation on the day of visit and during the six month prior to the survey. Efforts should be made to narrow the observed performance gap and special attention should be given to avail the pediatric anti TB drugs in the health facilities
Design and Instantiation of IS2SAVE: An Information System to Predict the Influx of Spontaneous Volunteers at Operating Sites
Creators: name: Lindner, Sebastian
name: Kühnel, Stephan
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: design science
subject: design principles
subject: spontaneous volunteer
subject: disaster management
subject: influx prediction
subject: DDC::0** Informatik, Informationswissenschaft, allgemeine Werke
subject: Information Systems
subject: FOS: Computer and information sciences

description: Disaster managers are in charge of encountering natural disasters, yet, more often supported by citizens, so-called spontaneous volunteers. Their help has repeatedly been reported to be valuable for reducing disaster scales, regarding an increase in natural disasters occurrences with devastating effects. However, their characteristic to emerge in large groups has led to an unpredictable influx at operating sites from the perspective of disaster management. Finally, this led to problems such as congestions and blocked emergency routes, overcrowded operating sites and hampering officials in doing their work. To address this unpredictability, we apply a design science research approach to design and develop an information system to predict the influx of spontaneous volunteers at operating sites. We examine three design requirements and ten design principles, that we instantiate in a prototype. We finally validate our design theory empirically with experts, who positively highlight its perceived usefulness, conciseness, extendibility, explanatory power.
Mapping directional functional connectivity across brain-wide networks with layer-specific CBV-fMRI
Creators: name: Huber, Laurentius
name: Finn, Emily
name: Kurban, Denizhan
name: Ivanov, Dimo
name: Khojandi, Arman
name: Goebel, Rainer
name: Bandettini, Peter
name: Poser, Benedikt
Publisher: name: Zenodo
Year: 2020
Subjects: layerfMRI, laminar fMRI,

description: With recent advances in ultra-high field MRI contrast optimizations and acquisition strategies, it has become possible to measure cerebral blood volume (CBV)-weighted fMRI signal across cortical layers. While initial proof-of-principle layer-fMRI studies in primary brain areas with conventional fMRI task designs are promising (Polimeni 2010, Huber 2017-2019, De Martino 2015, Kok 2016, Koopmans 2010), layer-fMRI has not yet realized its full potential to map layer-dependent functional connectivity across large-scale brain networks (Finn 2018, Sharoh 2019). In this study, we investigate the applicability of CBV-weighted layer-fMRI to assess functional connectivity during naturalistic tasks without the biases of large draining veins. We can map common resting-state networks and characterize their internal layer-dependent signatures with respect to directionality and cortical hierarchy. We find that layer-dependent fMRI is limited by SNR and venous signal leakage, making it challenging to map the functional connectome in humans. However, with the application of spatially specific CBV-weighted fMRI, we found that it is possible to measure functional connectivity across the entire brain without biases of venous signal leakage, yielding layer-dependent localization specificity. It can be a valuable tool:
 -> to obtain information about directional information flow across the entire brain
 -> to reveal causal relationships in large scale networks
Cognitive mechanisms of transitive reasoning in the adult domestic hen
Creators: name: Rachel, Degrande
name: Benoit, Piégu
name: Plotine, Jardat
name: Cornilleau Fabien
name: Léa, Lansade
name: Bessa, Ferreira Vitor Hugo
name: Ludovic, Calandreau
Publisher: name: Zenodo
Year: 2023
Subjects: chicken
reasoning
transitive inference

description: Transitive inference (TI) is a reasoning ability that allows animals to indirectly connect two components, knowing their respective relationship to each other (if A>B and B>C then A>C). Few bird species have been tested for TI to date, which limits our knowledge of the phylogenetic spread of such reasoning ability. Here, we tested TI in adult laying hens. Five hens had to learn direct relationships in a non-perceptual sequence of six items, varying in color and shape (A>B>C>D>E>F). The birds were trained to always peck at the priority item among two adjacent ones. Then, 12 testing sessions were implemented, comprising 3 unrewarded inference trials each, with one of each possibility per session (B-D, B-E, and C-E). All subjects showed TI within 12 inference trials. Further testing revealed that the hens were able to respond transitively using the respective colors of the items as the only cue, but not their shape. Our analysis showed that their performance was likely dependent on the residual value of the extreme items (A, F) over the others. Finally, we showed the absence of other possible response strategies through the configuration of the sessions. These results contribute to a better understanding of transitive reasoning in birds.
Transfer von Studienreformprojekten – Kolleg 2013 des Netzwerks Lehren
Creators: name: Glasmachers, Eva
name: Giese, Birgit
name: Kallweit, Michael
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: Mathematik ist eine zentrale Schlüsselqualifikation in allen naturwissenschaftlich-technischen Studienfächern, aber oft auch das Nadelöhr für angehende IngenieurInnen in der Studieneingangsphase: Besonders an den Mathematikveranstaltungen kristallisieren sich Defizite in fachlichen und methodischen Kompetenzen heraus. Diese führen dann zu unbefriedigenden Bestehensquoten und damit oft zum frühen Studienabbruch. Aus diesem Grunde wird bereits seit einiger Zeit an vielen Hochschulen an Reformen und Ergänzungen der bisherigen Lehrformate gearbeitet. Bisher fehlte aber ein systematischer Transfer von Best Practice Beispielen und Erfahrungen in die fachliche Breite.
Implementing ALiS: Towards a Reference Architecture for Augmented Living Spaces
Creators: name: Boehmer, Martin
name: Damarowsky, Johannes
name: Kühnel, Stephan
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: Spatial Augmented Reality
subject: Augmented Living Spaces
subject: Reference Architecture
subject: IS Healthcare
subject: DDC::0** Informatik, Informationswissenschaft, allgemeine Werke
subject: Information Systems
subject: FOS: Computer and information sciences

description: Augmented reality (AR) is currently discussed as an approach to promote the personal health of elderly and cognitively impaired people, with spatial AR being a promising, wearable-less solution to enable an augmented living space (ALiS) that immersively provides and communicates individual, needs-oriented functionalities in the areas of perception, mobility, organization, and medicine. To address the knowledge gap of missing knowledge concerning the implementation of such assistance systems that support autonomy in everyday life, we derived a reference architecture (RA) based on an existing design theory. Our RA contains UML diagrams for components and sequence flows, accompanying text descriptions, and a user interface design. We successfully implemented a prototype to show the RAs feasibility and conducted an expert survey for its general usefulness with positive results. Our contributions add to the prescriptive knowledge base of the community as the results may be adapted by researchers and practitioners.
title: Visibilität, Irritation und Provokation - Mari Katayamas Selbstdarstellung als Frau mit Behinderungen
Creators: name: Ollmann, Sophie
Year: 2023

description: Das Ziel der vorliegenden Masterarbeit war, die inszenierten Selbstdarstellungen von Mari Katayama und ihrem Körper auf die visuelle Positionierung der Künstlerin in einer ableistisch geprägten Gesellschaft zu untersuchen. Dies wurde durch eingehende Bildanalysen, die methodische Grundlage der Disability Studies sowie weiterer Literaturrecherche erreicht. Die Wahl des Mediums der Fotografie der Künstlerin spielt in Verbindung mit historischen Darstellungen von Freak Shows und Diane Arbus eine wichtige Rolle. Zusätzlich instrumentalisiert sie das Selbstportrait, um anonymisierenden Bildern von Menschen mit Behinderungen der Vergangenheit Selbstbestimmung entgegenzusetzen. Katayama setzt sich in ihren Selbstportraits dem Starren der Betrachter*innen aus, schafft dadurch aber Visibilität. Die Fotografien sind von Schönheitsidealen, deren Unterbrechung und erotischer Assoziationen geprägt, welche sich in der Inszenierung als Puppe verdichten und Stereotype des asiatischen Fetischismus reproduzieren. Die Künstlerin wählt bewusst ein Auftreten mit oder ohne Prothesen. Diese setzt sie entweder als rein visuelles Accessoire ein oder modifiziert sie, um mehr aufzufallen, Erwartungen zu unterbrechen und durch Größenveränderung Assoziationen mit dem posthumanistischen Bild des Cyborgs zu erschaffen. Katayama inszeniert sich als mythologisches Wesen wie eine Meerjungfrau und betont dadurch ihr auffälliges Aussehen. Denn auch ihr Alltag wird von der Umwelt zum Spektakel gemacht.
description: The goal of this master’s thesis was to examine the visual position of the artist Mari Katayama and her body in an ableist society through her staged self-depictions. This was achieved through detailed picture analysis, the methodological foundation of the disability studies as well as further literature research. The choice of the artist to use photography as a medium plays a role in connection to historical depictions from Freak Shows and Diane Arbus' work. Additionally, she instrumentalizes the self-portrait with agency to oppose anonymizing depictions of people with disabilities from the past. Katayama exposes herself to the staring of spectators, thereby she creates visibility. The photographs are informed by beauty standards, their disruption and erotic associations which deepen when she presents herself as a puppet and reproduces stereotypes of Asian fetishism. The artist consciously chooses to appear with or without prosthetics. She either uses them as purely visual accessories, modifies them to draw more attention and disrupt expectations or creates associations with the posthuman idea of the Cyborg by altering her height. Katayama stages herself as a mythological being like a mermaid or siren which emphasizes her remarkable appearance, since even her everyday life is made into a spectacle by society.
Valence and Core Photoelectron Spectra of Aqueous I3− from Multi-Reference Quantum Chemistry
Creators: name: Kochetov, Vladislav
name: Ahsan, Md Sabbir
name: Hein, Dennis
name: Wilkinson, Iain
name: Bokarev, Sergey
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: photoelectron spectra
subject: shake-up bands
subject: multi-reference methods
subject: triiodide anion
subject: 540 Chemie und zugeordnete Wissenschaften

description: The I3− molecule is known to undergo substantial structural reorganization upon solvation by a protic solvent, e.g., water. However, the details of this process are still controversially discussed in the literature. In the present study, we combined experimental and theoretical efforts to disentangle this controversy. The valence (5p), N4,5 (4d), and M4,5 (3d) edge photoelectron spectra were measured in an aqueous solution and computed using high-level multi-reference methods. Our previous publication mainly focused on obtaining reliable experimental evidence, whereas in the present article, we focused primarily on theoretical aspects. The complex electronic structure of I3− requires the inclusion of both static and dynamic correlation, e.g., via the multi-configurational perturbation theory treatment. However, the resulting photoelectron spectra appear to be very sensitive to problems with variational stability and intruder states. We attempted to obtain artifact-free spectra, allowing for a more reliable interpretation of experiments. Finally, we concluded that the 3d Photoelectron Spectrum (PES) is particularly informative, evidencing an almost linear structure with a smaller degree of bond asymmetry than previously reported.
Complex biphase nature of the superconducting dome of the FeSe phase diagram
Creators: name: Svitlyk, V.
name: Raba, M.
name: Dmitriev, V.
name: Rodiere, P.
name: Toulemonde, P.
name: Chernyshov, D.
name: Mezouar, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Single crystal synchrotron X-ray diffraction as a function of temperature and pressure has revealed a complex biphase mixture in superconducting FeSe. Based on our experimental results we construct a phase diagram where structural behavior and superconducting properties of FeSe are found to be correlated. We show that below 6 GPa, where pressure promotes the superconducting critical temperature, the FeSe structure is composed of 2D layers of edge-shared FeSe4 tetrahedra, while above 6 GPa the superconductivity is strongly suppressed on formation of a new orthorhombic polymorph characterized by a 3D network of face sharing FeSe6 octahedra. Therefore changes in topology and connectivity of the FeSe structure are found to be detrimental for superconductivity to exist. This previously controversial crystal structure of the high pressure polymorph of FeSe was also unambiguously determined. High pressure FeSe adopts an orthorhombic MnP-type structure (Pnma) which corresponds to a slightly distorted hexagonal NiAs-type arrangement (P63/mmc). The structural transformation from the low- to high-pressure FeSe polymorph is first order in nature and is manifested as antiparallel displacements within the Fe and Se sublattices.
Implementación de la herramienta educativa digital Educaplay, como estrategia pedagógica para el fortalecimiento de las competencias comunicativas lectora-escritora en los estudiantes de grado 4° de la Institución Educativa Santa Rosa del Bálsamo del Municipio de San Antero - Córdoba
Creators: name: Morales Hernández, Dolis Luci
Publisher: name: Universidad de Cartagena
Year: 2021
Subjects: subject: Tecnología educativa
subject: Innovaciones educativas
subject: Enseñanza con ayuda de computadores
subject: Lectura - Enseñanza
subject: Escritura - Enseñanza

description: El proyecto investigativo está basado en el fortalecimiento de las competencias comunicativas con relación a la lectura y escritura en estudiantes de cuarto grado de primaria mediante la implementación de una propuesta pedagógica con ayuda de la herramienta tecnológica educativa digital Educaplay. Es un estudio descriptivo con un paradigma cualitativo, utilizó el modelo de investigación basado en diseño como metodología, teniendo en cuenta que este consiste en la implementación de un nuevo elemento para la transformación de una situación problema, además permite resolver inconvenientes educativos reales de carácter social y académico, recurriendo a teorías científicas, modelos que conlleven estrategias didácticas entre otras, (De Benito, 2016). Para el logro de los objetivos se interactuó con los docentes, padres de familia y posteriormente los estudiantes de cuarto mediante la aplicación de instrumentos, seguida del trabajo de campo dentro y fuera del aula, basado en las fases del modelo adoptado.
Diseño y estructuración del departamento de recursos humanos en la empresa Inverbienes Ltda
Creators: name: Murillo Polo, Harin
name: Bravo Monroy, Mayra
Publisher: name: Universidad de Cartagena
Year: 2013
Subjects: Administración de personal
Recursos humanos
Departamento de Recursos Humanos en la Empresa Inversiones LTDA -Diseño -Estructuración

description: Tesis(Administrador de Empresas).-Universidad de Cartagena-Facultad de Ciencias Económicas. Programa de Administración de Empresas,2013
description: Actualmente, el nuevo panorama competitivo en el que se desenvuelven las organizaciones a nivel mundial, ofrece tanto oportunidades de crecimiento y desarrollo basado en los avances tecnológicos, científicos y de sistema de información, de comercialización y organización, cómo representa a su vez una amenaza si no se cuenta con todos los recursos necesarios para subsistir en el mercado esto, partiendo del hecho de que no solo basta con tener tecnología de punta o sistema de producción y distribución apropiado, sino que también se debe contar con todo el potencial que nos puede brindar el activo más importante de la empresa: “Talento Humano”. En la ciudad de Cartagena se observa que en muchas de las empresas del sector servicio se hace cada vez más necesario, tanto para sus empleados como para las personas que aspiran a ocupar cargos en las mismas, tener la preparación y la formación profesional que les permita cumplir con las exigencias del mercado laboral y así poder asumir las responsabilidades y funciones de los diferentes cargos. En este sentido, este trabajo titulado Diseño y estructuración del Departamento de recurso humano en la empresa Inverbienes ltda., busca ser una herramienta que permita, tanto a la organización en estudio, como futuras investigaciones, contar con las pautas necesarias, para el buen funcionamiento y desarrollo de esta importante área para la organización, y de esta forma, brindar a los empleados la preparación y la formación profesional que les permita cumplir con las exigencias del mercado laboral y así, poder asumir las responsabilidades y funciones de los diferentes cargos. El propósito principal de este trabajo, es lograr que mediante los resultados obtenidos en esta investigación y resaltando la importancia del departamento de recursos humanos, la empresa Inverbienes Ltda., implemente y acoja la propuesta de desarrollar esta área en la organización.
Del fuero sindical
Creators: name: Bossa Bossa, Cristóbal Eduardo
Publisher: name: Universidad de Cartagena
Year: 1979
Subjects: Derecho laboral
Fuero sindical - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1979
description: Propósito del movimiento sindical es impedir el despido del empleador sin causa justificada, tratando asi de limitar el efecto o capitalista sobre el movimiento de la fuerza del trabajo.
Counting Finite Index Subrings of $\mathbb{Z}^n$
Creators: name: Atanasov, Stanislav
name: Kaplan, Nathan
name: Krakoff, Benjamin
name: Menzel, Julia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 20E07, 11H06, 11M41

description: We count subrings of small index of $\mathbb{Z}^n$, where the addition and multiplication are defined componentwise. Let $f_n(k)$ denote the number of subrings of index $k$. For any $n$, we give a formula for this quantity for all integers $k$ that are not divisible by a 9th power of a prime, extending a result of Liu.
description: 29 pages. To appear in Acta Arithmetica
De la jurisdicción contencioso administrativa
Creators: name: Iriarte, Alberto H.
Publisher: name: Universidad de Cartagena
Year: 1939
Subjects: Derecho administrativo

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1939
description: De la administración, los actos administrativos, la justicia en la administración publica, de la justicia propiamente administrativa, diferentes casos de acciones en la justicia administrativa.
The Effect Of Project Communication Management On Project Performance: A Case Of Amahara Development Association Water Projects
Creators: name: Kuma, Abraham
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Prior studies demonstrate the importance of project communication management for the success of a project. This study focused on practices of project communication management in ADA water project in Ethiopia. The objectives of this study was to examine the practice of project communication management, and establish a potential relationship between project communication and project performance in water projects of Amhara Development Association in Ethiopia. Explanatory research design and quantitative approach was adopted. Out of a sample size of 214, 175 responded implying 81% of response rate). Primary data were collected from project team member using questionnaires. Data analysis were done using descriptive as well as inferential data analysis techniques. The findings of the study show that the practice of project communication management, communication method, and communication channel had statistically positive significant influence on project performance. Barriers to communication had statistically negative significant influence on project performance. Oral communication method was the most frequently used relatively to others. Bottom-up flow of information was the predominant pattern of communication flow followed by horizontal (lateral) flow of information. The study, therefore, recommends that strengthening the deployment of project communication management and communication method; top –down communication in the project shall be encouraged; and on avoiding barriers to effective communication, revising the established line of communication, building trust between employees must get attention.
Software de apoyo para el proceso de implantación del sistema de gestión de seguridad de la información en organizaciones basado en la Norma ISO 27001
Creators: name: Betín Rodriguez, Andrés David
name: Madera Osorio, Jhony Enrique
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Diseño de software
Seguridad informatica
Norma ISO 27001

description: Tesis (Ingeniero de Sistemas).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería de Sistemas, 2016
description: El presente proyecto tiene como objetivo desarrollar un software de apoyo para el proceso de implantación del sistema de gestión de seguridad de la información en organizaciones basado en la norma ISO 27001. El fundamento teórico se centra en definir aspectos relacionados con objetivos, elementos y compromisos de la seguridad de información, conceptos y ciclo de vida del SGSI, así como estándares internacionales más destacados en la actualidad.
Weight elimination in Serre-type conjectures
Creators: name: Le, Daniel
name: Hung, Bao V. Le
name: Levin, Brandon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We prove the weight elimination direction of the Serre weight conjectures as formulated by Herzig for forms of $U(n)$ which are compact at infinity and split at places dividing $p$ in generic situations. That is, we show that all modular weights for a mod $p$ Galois representation are contained in the set predicted by Herzig. Under some additional hypotheses, we also show modularity of all the "obvious" weights.
description: 59 pages, v4, minor revision, to appear in Duke Math. Journal
Die gesellschaftliche Konstruktion einer neuen Technik. Legitimationsstrategien zur Durchsetzung der bemannten Raumfahrt als Beispiel
Creators: name: Krupp, Helmar
name: Weyer, Johannes
Publisher: name: Technische Universität Dortmund
Year: 1988
Subjects: subject: Raumfahrt
subject: Technikfolgenabschätzung
subject: 330

description: Die deutsche Pläne zur bemannten Raumfahrt werden einer umfassenden Kosten-Nutzen-Abschätzung unterzogen.
Protocol for the VALIDATE Workshop Study
Creators: name: Madai, Vince Istvan
name: Bui, Cathrine
name: Lopez-Ramos, Luis Miguel
Publisher: name: Zenodo
Year: 2023
Subjects: trustworthy AI
AI ethics
workshop
protocol

description: This submission is the pre-registration of the protocol of the qualitative "VALIDATE Workshop Study" outlining the rationale, methods, and methodology to derive low-level trustworthy AI requirements for the EU grant study "VALIDATE".
On the Content Security Policy Violations due to the Same-Origin Policy
Creators: name: Somé, Dolière Francis
name: Bielova, Nataliia
name: Rezk, Tamara
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Modern browsers implement different security policies such as the Content Security Policy (CSP), a mechanism designed to mitigate popular web vulnerabilities, and the Same Origin Policy (SOP), a mechanism that governs interactions between resources of web pages. In this work, we describe how CSP may be violated due to the SOP when a page contains an embedded iframe from the same origin. We analyse 1 million pages from 10,000 top Alexa sites and report that at least 31.1% of current CSP-enabled pages are potentially vulnerable to CSP violations. Further considering real-world situations where those pages are involved in same-origin nested browsing contexts, we found that in at least 23.5% of the cases, CSP violations are possible. During our study, we also identified a divergence among browsers implementations in the enforcement of CSP in srcdoc sandboxed iframes, which actually reveals a problem in Gecko-based browsers CSP implementation. To ameliorate the problematic conflicts of the security mechanisms, we discuss measures to avoid CSP violations.
description: 8 pages + references for the short version, extended to 19 pages for detailed appendices
The compression of a heavy floating elastic film
Creators: name: Jambon-Puillet, Etienne
name: Vella, Dominic
name: Protière, Suzie
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the effect of film density on the uniaxial compression of thin elastic films at a liquid--fluid interface. Using a combination of experiments and theory, we show that dense films first wrinkle and then fold as the compression is increased, similarly to what has been reported when the film density is neglected. However, we highlight the changes in the shape of the fold induced by the film's own weight and extend the model of Diamant and Witten [Phys.Rev.Lett. 2011, 107, 164302, arXiv:1107.5505] to understand these changes. In particular, we suggest that it is the weight of the film that breaks the up-down symmetry apparent from previous models, but elusive experimentally. We then compress the film beyond the point of self-contact and observe a new behaviour dependent on the film density: the single fold that forms after wrinkling transitions into a closed loop after self-contact, encapsulating a cylindrical droplet of the upper fluid. The encapsulated drop either causes the loop to bend upward or to sink deeper as compression is increased, depending on the relative buoyancy of the drop-film combination. We propose a model to qualitatively explain this behaviour. Finally, we discuss the relevance of the different buckling modes predicted in previous theoretical studies and highlight the important role of surface tension in the shape of the fold that is observed from the side -- an aspect that is usually neglected in theoretical analyses.
description: 16 pages, including Supplementary Information. Approximately the published version
Coloring decompositions of complete geometric graphs
Creators: name: Huemer, Clemens
name: Lara, Dolores
name: Rubio-Montiel, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A decomposition of a non-empty simple graph $G$ is a pair $[G,P]$, such that $P$ is a set of non-empty induced subgraphs of $G$, and every edge of $G$ belongs to exactly one subgraph in $P$. The chromatic index $χ'([G,P])$ of a decomposition $[G,P]$ is the smallest number $k$ for which there exists a $k$-coloring of the elements of $P$ in such a way that: for every element of $P$ all of its edges have the same color, and if two members of $P$ share at least one vertex, then they have different colors. A long standing conjecture of Erdős-Faber-Lovász states that every decomposition $[K_n,P]$ of the complete graph $K_n$ satisfies $χ'([K_n,P])\leq n$. In this paper we work with geometric graphs, and inspired by this formulation of the conjecture, we introduce the concept of chromatic index of a decomposition of the complete geometric graph. We present bounds for the chromatic index of several types of decompositions when the vertices of the graph are in general position. We also consider the particular case in which the vertices are in convex position and present bounds for the chromatic index of a few types of decompositions.
description: 18 pages, 5 figures
Practice And Challenges Of Project Team Management In Selected International Ngos In Ethiopia
Creators: name: Endale, Nardos
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Project Management requires unique set of skills and techniques, different from those needed to manage other operations. Project managers face the challenges of working in a project environment characterized by high levels of uncertainty, cross-functional and multi-disciplinary teams, and where there is high competition for competent human resources. Most project managers agree that the real project management challenges are not found in the technical aspects of the project but rather in the behavioral and organizational aspects of projects. People are at the center of projects as they plan, organize, direct, coordinate, and monitor project activities. Project human resources or Project team management is one of the most important tasks of project management. It is categorized as one of the ten project management knowledge areas which include the processes of acquiring, developing, managing, and leading the project team. Effective team management and leadership are fundamental for high team performance. Literatures on how to effectively manage project human resources in business or commercial projects exist extensively. However, a major area not being sufficiently covered in research is about project team management in non-governmental organizations. This research project attempted to discover and describe how project managers in the selected INGOs, acquire, develop, manage and lead their project teams and the particular challenges they face. The results revealed that in most areas effective project team management practices are applied whereas in some areas further improvement and investigation is needed
Positivity, Grassmannian Geometry and Simplex-like Structures of Scattering Amplitudes
Creators: name: Rao, Junjie
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This article revisits and elaborates the significant role of positive geometry of momentum twistor Grassmannian for planar N=4 SYM scattering amplitudes. First we establish the fundamentals of positive Grassmannian geometry for tree amplitudes. Then we formulate this subject around these four major facets: 1. Deriving the tree and 1-loop BCFW recursion relations solely from positivity, after introducing the simple building blocks called positive components. 2. Applying Grassmannian geometry and Pluecker coordinates to determine the signs in N$^2$MHV homological identities. Most of them in fact reflect the secret incarnation of the simple 6-term NMHV identity. 3. Deriving the stacking positivity relation, which is powerful for parameterizing the matrix representative in terms of positive variables, of a given Grassmannian geometric configuration. 4. Introducing a highly refined formalism for tree BCFW recursion relation, which reveals its two-fold simplex-like structures. First, the BCFW contour in terms of (reduced) Grassmannian geometry representatives is dissected into a triangle-shape sum, as only a small fraction of the sum needs to be explicitly identified. Second, this fraction can be further dissected, according to different growing modes and parameters. The growing modes possess the shapes of solid simplices of various dimensions, with which infinite number of BCFW cells can be entirely captured by the characteristic objects called fully-spanning cells. We find that for a given k, beyond n=4k+1 there is no more new fully-spanning cell, which signifies the essential termination of the recursive growth of BCFW cells. As n increases beyond the termination point, the BCFW contour simply replicates itself according to the simplex-like patterns, which enables us to master all BCFW cells once for all without actually identifying most of them.
description: 100 pages, 21 figures, 3 appendices. Subsection 5.1 streamlined for v2. Figures improved for v3
On uniform closeness of local times of Markov chains and i.i.d. sequences
Creators: name: de Bernardini, Diego F.
name: Gallesco, Christophe
name: Popov, Serguei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J05 (Primary) 60G09, 60J55 (Secondary)

description: In this paper we consider the field of local times of a discrete-time Markov chain on a general state space, and obtain uniform (in time) upper bounds on the total variation distance between this field and the one of a sequence of $n$ i.i.d. random variables with law given by the invariant measure of that Markov chain. The proof of this result uses a refinement of the soft local time method of [11].
description: 42 pages, 2 figures, coupling construction of Section 4 corrected, results unchanged
Cubic interactions of Maxwell-like higher spins
Creators: name: Francia, Dario
name: Monaco, Gabriele Lo
name: Mkrtchyan, Karapet
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the cubic vertices for Maxwell-like higher-spins in flat and (A)dS background spaces of any dimension. Reducibility of their free spectra implies that a single cubic vertex involving any three fields subsumes a number of couplings among different particles of various spins. The resulting vertices do not involve traces of the fields and in this sense are simpler than their Fronsdal counterparts. We propose an extension of both the free theory and of its cubic deformation to a more general class of partially reducible systems, that one can obtain from the original theory upon imposing trace constraints of various orders. The key to our results is a version of the Noether procedure allowing to systematically account for the deformations of the transversality conditions to be imposed on the gauge parameters at the free level.
description: 57 pages; added Section 7 including (A)dS off-shell cubic vertices and corresponding generating function. Outlook extended with comments on Maxwell-like spectra and higher-spin algebras
Space-time fluctuations and a stochastic Schrödinger-Newton equation
Creators: name: Bera, Sayantani
name: Giri, Priyanka
name: Singh, Tejinder P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a stochastic modification of the Schrödinger-Newton equation which takes into account the effect of extrinsic spacetime fluctuations. We use this equation to demonstrate gravitationally induced decoherence of two gaussian wave-packets, and obtain a decoherence criterion similar to those obtained in the earlier literature in the context of effects of gravity on the Schrödinger equation.
description: 16 pages; two clarifying lines added in 1st paragraph on page 11; results unchanged; accepted for publication in Foundations of Physics
On the central limit theorem for unsharp quantum random variables
Creators: name: Dimić, Aleksandra
name: Dakić, Borivoje
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this letter we study the weak-convergence properties of random variables generated by unsharp quantum measurements. More precisely, for a sequence of random variables generated by repeated unsharp quantum measurements, we study the limit distribution of relative frequency. We provide the de Finetti-type representation theorem for all separable states, showing that the distribution can be well approximated by mixture of normal distributions. No symmetry restrictions, such as the permutational invariance were needed. Furthermore, we investigate the convergence rates and show that the relative frequency can stabilize to some constant at best at the rate of order $1/\sqrt{N}$ for all separable inputs. On the other hand, we provide an example of a strictly unsharp quantum measurement where the better rates are achieved by using entangled inputs. This means that in certain cases the noise generated by the measurement process can be suppressed by using entanglement. We deliver our result in the form of quantum information task where the player achieves the goal with certainty in the limiting case by using entangled inputs or fails with certainty by using separable inputs.
description: published version
On Spaces Associated with Invariant Divisors on Galois Covers of Riemann Surfaces and Their Applications
Creators: name: Kopeliovich, Yaacov
name: Zemel, Shaul
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H30, 14H37, 30F30, 14H40

description: Let $f:X \to S$ be a Galois cover of Riemann surfaces, with Galois group $G$. In this paper we analyze the $G$-invariant divisors on $X$, and their associated spaces of meromorphic functions, differentials, and $q$-differentials. We generalize the trace formula for non-trivial elements of $G$ on $q$-differentials, as well as the Chevalley--Weil Formula. When $G$ is Abelian or when the genus of $S$ is 0 we prove additional results, and we also determine the non-special $G$-invariant divisors when both conditions are satisfied.
description: 44 pages, exposition improved, added list of notations
Magnetic noise spectroscopy as a probe of local electronic correlations in two-dimensional systems
Creators: name: Agarwal, Kartiek
name: Schmidt, Richard
name: Halperin, Bertrand
name: Oganesyan, Vadim
name: Zaránd, Gergely
name: Lukin, Mikhail D.
name: Demler, Eugene
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop the theoretical framework for calculating magnetic noise from conducting two-dimensional (2D) materials. We describe how local measurements of this noise can directly probe the wave-vector dependent transport properties of the material over a broad range of length scales, thus providing new insight into a range of correlated phenomena in 2D electronic systems. As an example, we demonstrate how transport in the hydrodynamic regime in an electronic system exhibits a unique signature in the magnetic noise profile that distinguishes it from diffusive and ballistic transport and how this can be used to measure the viscosity of the electronic fluid. We employ a Boltzmann approach in a two-time relaxation-time approximation to compute the conductivity of graphene and quantitatively illustrate these transport regimes and the experimental feasibility of observing them. Next, we discuss signatures of isolated impurities lodged inside the conducting 2D material. The noise near an impurity is found to be suppressed compared to the background by an amount that is directly proportional to the cross-section of electrons/holes scattering off of the impurity. We use these results to outline an experimental proposal to measure the temperature dependent level-shift and line-width of the resonance associated with an Anderson impurity.
description: 28 pages, 11 figures
Estudio de factibilidad para la ampliación de la litografía Cartagenera de Graficas Limitada
Creators: name: Quintana Espinosa, Franklin
name: Burgos Miranda, Jorge E.
Publisher: name: Universidad de Cartagena
Year: 1981
Subjects: Estudio de mercadeo
Estudio de factibilidad

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1981
description: El presente trabajo tiene como objetivo, conocer por medios de informes formales que se presentan en análisis cualitativos y cuantitativos de los diferentes aspectos técnicos y económicos, los resultados que permitan justificar la ampliación de la Litografía Cartagenera de Gráficas Ltda.