cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of Scatterering on Coherent Anti-Stokes Raman Scattering (CARS) signals
Creators: name: Ranasinghesagara, Janaka C.
name: de Vito, Giuseppe
name: Piazza, Vincenzo
name: Potma, Eric O.
name: Venugopalan, Vasan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We develop a computational framework to examine the factors responsible for scattering-induced distortions of coherent anti-Stokes Raman scattering (CARS) signals in turbid samples. We apply the Huygens-Fresnel Wave-based Electric Field Superposition (HF-WEFS) method combined with the radiating dipole approximation to compute the effects of scattering-induced distortions of focal excitation fields on the far-field CARS signal. We analyze the effect of spherical scatterers, placed in the vicinity of the focal volume, on the CARS signal emitted by different objects (2μm diameter solid sphere, 2μm diameter myelin cylinder and 2μm diameter myelin tube). We find that distortions in the CARS signals arise not only from attenuation of the focal field but also from scattering-induced changes in the spatial phase that modifies the angular distribution of the CARS emission. Our simulations further show that CARS signal attenuation can be minimized by using a high numerical aperture condenser. Moreover, unlike the CARS intensity image, CARS images formed by taking the ratio of CARS signals obtained using x- and y-polarized input fields is relatively insensitive to the effects of spherical scatterers. Our computational framework provide a mechanistic approach to characterizing scattering-induced distortions in coherent imaging of turbid media and may inspire bottom-up approaches for adaptive optical methods for image correction.
description: 15 pages, 7 figures
ВЕСТНИК ОБРАЗОВАНИЯ И РАЗВИТИЯ НАУКИ РОССИЙСКОЙ АКАДЕМИИ ЕСТЕСТВЕННЫХ НАУК,Выпуск 1 2022
Creators: name: Государственный институт экономики, финансов
Publisher: name: Государственный институт экономики, финансов, права и технологий
Year: 2022

description: ВЕСТНИК ОБРАЗОВАНИЯ И РАЗВИТИЯ НАУКИ РОССИЙСКОЙ АКАДЕМИИ ЕСТЕСТВЕННЫХ НАУК,Выпуск 1 2022
Belastungserleben, Krankheitsbewältigung und Lebensqualität vor und nach stationärer Rehabilitation bei Eltern von neurodermitiskranken Kindern
Creators: name: Terpitz, Corinna
Publisher: name: Universität Dortmund
Year: 2004
Subjects: subject: Neurodermitis
subject: Endogenes Ekzem
subject: Atopische Dermatitis
subject: Kind
subject: Elternschulung
subject: Stationäre Therapie
subject: 370

description: Die atopische Dermatitis (AD) im Kindesalter wird biopsychosozial verursacht und aufrechterhalten. Sie stellt die Eltern und Kinder vor diverse Anforderungen bei der regelmäßigen Behandlung und erfordert einen adaptiven Umgang mit Juckreiz und Kratzen beim Kind. Neurodermitiskranke Kinder haben ein erhöhtes Risiko psychische Auffälligkeiten zu entwickeln, und viele Mütter fühlen sich durch die Erkrankung ihres Kindes belastet, hoffnungslos oder in ihrer Lebensqualität eingeschränkt. Offenbar hat das Coping der Mütter einen wichtigen Einfluss auf die Adaptation an die Erkrankung des Kindes. Neurodermitisschulungen für die Eltern, in denen medizinische, psychologische und ernährungsbezogene Inhalte kombiniert werden, haben das Ziel, das Selbstmanagement der Eltern zu fördern. Im ambulanten Bereich konnte die Wirksamkeit von Elternschulungen bereits gezeigt werden. In dieser Studie wurde die Elternschulung im Rahmen der stationären Rehabilitation an einer Stichprobe von 68 Kindern (im Alter von 0;6 bis 7;10 Jahren) und ihren Eltern untersucht. Therapieerfolgskriterien waren neben dem Schweregrad der AD des Kindes, das Belastungserleben, das Coping und die Lebensqualität der Eltern. Nach der Rehabilitation zeigten sich signifikante Verbesserungen im Schweregrad der AD des Kindes sowie im Coping und der Lebensqualität der Eltern. Determinanten des Therapieerfolgs waren maladaptives Coping und niedrige Lebensqualität zu Beginn der Behandlung. Die Zunahme an Lebensqualität nach der Rehabilitation hing mit der Verbesserung der dysfunktionalen Kognitionen zusammen, an denen während der Elternschulung gearbeitet wurde. Für die Rehabilitation neurodermitiskranker Kinder und ihrer Eltern bedeuten diese Ergebnisse, dass die Entscheidung, welchen Kindern eine stationäre Rehabilitation ermöglicht wird, nicht nur von dem Schweregrad der AD, sondern auch von dem Ausmaß der Einschränkungen im Coping und in der Lebensqualität der Eltern abhängig gemacht werden sollte.
title: Army permit No. SAJ-2017-03256 (201703256) - Mendelson Seawall
titleType: AlternativeTitle
title: Endangered Species Act - Section 7 Consultation Biological Opinion SAJ-2017-03256 (LP-NDF) Eric Mendelson Dock and Seawall Miami-Dade County, Florida SER-2018-19122
Creators: name: United States. National Marine Fisheries Service. Southeast Region
Publisher: name: United States. National Marine Fisheries Service. Southeast Region
Year: 2018

description: SERO-2018-02217
Asynchronous Stochastic Gradient Descent with Delay Compensation
Creators: name: Zheng, Shuxin
name: Meng, Qi
name: Wang, Taifeng
name: Chen, Wei
name: Yu, Nenghai
name: Ma, Zhi-Ming
name: Liu, Tie-Yan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: With the fast development of deep learning, it has become common to learn big neural networks using massive training data. Asynchronous Stochastic Gradient Descent (ASGD) is widely adopted to fulfill this task for its efficiency, which is, however, known to suffer from the problem of delayed gradients. That is, when a local worker adds its gradient to the global model, the global model may have been updated by other workers and this gradient becomes "delayed". We propose a novel technology to compensate this delay, so as to make the optimization behavior of ASGD closer to that of sequential SGD. This is achieved by leveraging Taylor expansion of the gradient function and efficient approximation to the Hessian matrix of the loss function. We call the new algorithm Delay Compensated ASGD (DC-ASGD). We evaluated the proposed algorithm on CIFAR-10 and ImageNet datasets, and the experimental results demonstrate that DC-ASGD outperforms both synchronous SGD and asynchronous SGD, and nearly approaches the performance of sequential SGD.
description: 20 pages, 5 figures
Diseño de una empresa comunitaria partiendo de las potencialidades de la comunidad caso Martínez Martelo
Creators: name: Arnedo Macia, Cristian
name: García, Fidian
Publisher: name: Universidad de Cartagena
Year: 2004
Subjects: Planificación estratégica en hospitales
Administración estratégica
Estrategia empresarial

description: Tesis ( Administrador de Empresas) -- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas,2004
description: El presente estudio tiene por objeto el estudio y diseño de una empresa comunitaria en el Barrio Martínez Martelo de la ciudad de Cartagena de Indias que conlleve a su creación y a la participación de la universidad en los espacios comunitarios.
A Permutation-based Model for Crowd Labeling: Optimal Estimation and Robustness
Creators: name: Shah, Nihar B.
name: Balakrishnan, Sivaraman
name: Wainwright, Martin J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Information Theory (cs.IT)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: The task of aggregating and denoising crowd-labeled data has gained increased significance with the advent of crowdsourcing platforms and massive datasets. We propose a permutation-based model for crowd labeled data that is a significant generalization of the classical Dawid-Skene model, and introduce a new error metric by which to compare different estimators. We derive global minimax rates for the permutation-based model that are sharp up to logarithmic factors, and match the minimax lower bounds derived under the simpler Dawid-Skene model. We then design two computationally-efficient estimators: the WAN estimator for the setting where the ordering of workers in terms of their abilities is approximately known, and the OBI-WAN estimator where that is not known. For each of these estimators, we provide non-asymptotic bounds on their performance. We conduct synthetic simulations and experiments on real-world crowdsourcing data, and the experimental results corroborate our theoretical findings.
description: in IEEE Transactions on Information Theory (online), 2020
ВЕСТНИК ОБРАЗОВАНИЯ И РАЗВИТИЯ НАУКИ РОССИЙСКОЙ АКАДЕМИИ ЕСТЕСТВЕННЫХ НАУК,Выпуск 2 2022
Creators: name: Государственный институт экономики, финансов
Publisher: name: Государственный институт экономики, финансов, права и технологий
Year: 2022

description: ВЕСТНИК ОБРАЗОВАНИЯ И РАЗВИТИЯ НАУКИ РОССИЙСКОЙ АКАДЕМИИ ЕСТЕСТВЕННЫХ НАУК,Выпуск 2 2022
A resurgence analysis for cubic and quartic anharmonic potentials
Creators: name: Gahramanov, Ilmar
name: Tezgin, Kemal
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we explicitly show resurgence relations between perturbative and one instanton sectors of the resonance energy levels for cubic and quartic anharmonic potentials in one-dimensional quantum mechanics. Both systems satisfy the Dunne-Unsal relation and hence we are able to derive one-instanton non-perturbative contributions with the fluctuation terms to the energy merely from the perturbative data. We confirm our results with previous results obtained by Zinn-Justin et al.
description: 9 pages
Factors Affecting the Success of Construction Projects in Petroleum Distributing Companies in Ethiopia: with a specific case of National Oil Ethiopia and Mulege Petroleum
Creators: name: Assefa, Maranatha
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Oil and Gas industry is an important industry that plays a vital role in socio-economic development of a country. A stable supply of oil and gas is needed to sustain continued development of our economies. However, Poor schedule and budget performance are major problems faced by today's petroleum industry. Hence, this study tried to identify the major inhibiting factors for the success of construction projects undertaken by the Oil and Gas distributing companies in Ethiopia with a specific case of NOC Ethiopia and Mulege Petroleum. The study used survey data obtained through questionnaires distributed to the different Office Engineers, Site Engineers Contractors and Project Supervisors working with the two companies were taken and descriptive analysis was used to analyze the data collected. Cronbach Alpha was used to determine the "reliability" of the questionnaire and the result was 0.869 which shows that the questionnaire is reliable. Hypothesis test based on independent t -test at 95% confidence level were also made. Results show that inflation and lack of foreign currency, design & scope changes, delay in commencement of projects and delay in provision of resources are the basic factors responsible for the cost overrun and schedule slippage of projects in the companies. Finally, a recommendation in which companies should have clear and detailed plan of project work, use efficient resource planning and avoid delay in commencement of projects and providing sufficient trainings can help to improve the performance of the projects was made based on the factors identified as affecting the success of projects in the industry
PROMETHEUS - Spezifikation eines rechnergestützten Behandlungsmanagementsystems im Krankenhaus
Creators: name: Franke, Wolfgang
name: Frenzel, Thorsten
name: Hilker, Jörg
name: Patoka, Matthias
name: Privighitorita, Ruxandra
name: Proske, Thorsten
name: Sobottka, Hans Gerald
name: Stroetmann, Christian
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 004

description: Internes Memorandum des Lehrstuhls für Software-Technologie / Fachbereich Informatik, Universität Dortmund ; 94
Análisis léxico-semántico del habla de la pandilla "los pelúos" del barrio Piedra Bolívar de la ciudad de Cartagena
Creators: name: Gómez Palomo, Maurio David
name: Montes Osorio, Karen Elizabeth
Publisher: name: Universidad de Cartagena
Year: 2017
Subjects: Lenguaje juvenil
Sociolinguistica
Léxico - Análisis
Análisis del discurso

description: Tesis (Profesional en Lingüística y Literatura) – Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Lingüística y Literatura, 2017
description: La constitución de grupos sociales conformados por jóvenes en la ciudad de Cartagena, han originado investigaciones desde los enfoques, el estudio del habla de un grupo pandilleros de la ciudad de Cartagena denominado los “pelúos” propuesto en esta investigación lo originó el interés por caracterizar sus formas de interacción como variación lingüística con carácter argótico, que se conoce desde la sociolingüística como un fenómeno de variación sociolectal, donde sus principales causas son las variables sociales (edad, nivel educativo, nivel socio-económico, etec.) que enmarcan esta investigación.
Finite atomic lattices and their monomial ideals
Creators: name: He, Peng
name: Wang, Xue-ping
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 06D05, 13D02

description: This paper primarily studies monomial ideals by their associated lcm-lattices. It first introduces notions of weak coordinatizations of finite atomic lattices which have weaker hypotheses than coordinatizations and shows the characterizations of all such weak coordinatizations. It then defines a finite super-atomic lattice in $\mathcal{L}(n)$, investigates the structures of $\mathcal{L}(n)$ by their super-atomic lattices and proposes an algorithm to calculate all the super-atomic lattices in $\mathcal{L}(n)$. It finally presents a specific labeling of finite atomic lattice and obtains the conditions that the specific labelings of finite atomic lattices are the weak coordinatizations or the coordinatizations by using the terminology of super-atomic lattices.
description: 27pages. arXiv admin note: text overlap with arXiv:1009.1430 by other authors
Estudio socio - económico del Municipio de San Fernando como base para un plan de desarrollo económico y social
Creators: name: Miranda Hernandez, Fernando
name: Reyes Castro, Juan Carlos
Publisher: name: Universidad de Cartagena
Year: 1993
Subjects: Municipio de San Fernando - Desarrollo socioeconómico

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1993.
description: El presente estudio tiene por objeto conocer las condiciones socio-económicas que se dan en el municipio de san fernando para detectar el nivel de vida de la población. ademas, señalar los aspectos positivos y negativos que afectan el desarrollo del municipio, de tal manera que facilite un conocimiento mas profundo de los problemas que obstaculizan la consecución de un adecuado bienestar y progreso de los habitantes.
title: Army permit No. SAJ-2017-03385 (SAJ-2017-03385) - Solveson Seawall
titleType: AlternativeTitle
title: Endangered Species Act - Section 7 Consultation Biological Opinion SAJ-2017-03385 (NW-EMC), Mr. Richard Salveson, Shoreline Stabilization, Fort Meyers, Lee County, Florida
Creators: name: United States. National Marine Fisheries Service. Southeast Region
Publisher: name: United States. National Marine Fisheries Service. Southeast Region
Year: 2018

description: SERO-2018-02216
Mechanisms for the Generation of Coherent Longitudinal-Optical Phonons in GaAs/AlGaAs Multiple Quantum Wells
Creators: name: Dekorsy, T.
name: Kim, D. S.
name: Lim, Y. S.
name: Yee, K. J.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Assessment Of Project Stakeholder Management Practice In The Case Of Ethio Telecom
Creators: name: Belete, Yodit
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Project stakeholder management is among the ten knowledge areas that a project manager must be familiar with for a successful implementation of a project work. Hence, this study is targeted to assess project stakeholder practice of Ethio Telecom by addressing the process undergone namely: Stakeholder Identification, Stakeholder Analysis, plan stakeholder management process, stakeholder Engagement and communication. This study has made use of descriptive method of research design. In the meanwhile, mixed research approach has been adopted to carry out the study. Because it was possible to obtain the information the researcher needed by using primary data and it was collected from 60 respondents which are selected using census and the collected data was analyzed using SPSS version 20.0. Then the data presented quantitatively using descriptive statistics with the help of table, frequency and percentage. Semi-structured interview was also conducted with the 5 project managers, and analyzed qualitatively by integrating secondary data obtained from TEP chart, reports, magazines and Ethio telecom booklet. Accordingly, the findings of the study reveals the company fails to organize separate functional unit for managing stakeholder relationship, conflict of interest, change of requirement, and there is lack of clear understanding on stakeholder management processes. Finally, it is recommended that all stakeholders should understand project goals and objectives, all relevant stakeholders should identify from the project planning, ensure there is a strong communication among all stakeholders and need to assign a separate organizational stakeholder management unit.
On the uniqueness of $L$-fuzzy sets in the representation of families of sets
Creators: name: He, Peng
name: Wang, Xue-ping
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: I.7.2
subject: 03E72

description: This paper deals with the uniqueness of $L$-fuzzy sets in the representation of a given family of subsets of nonempty set. It first shows a formula of the number of $L$-fuzzy sets whose collection of cuts coincides with a given family of subsets of a nonempty set, and then provides a necessary and sufficient condition under which such $L$-fuzzy sets are unique.
description: 8pages
Cohomological invariants of genus three hyperelliptic curves
Creators: name: Pirisi, Roberto
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We compute the cohomological invariants with coefficients in $\mathbb{Z}/p\mathbb{Z}$ of the stack $\mathscr{H}_3$ of hyperelliptic curves of genus $3$ over an algebraically closed field.
description: Changed title and indexing to match published version. arXiv admin note: text overlap with arXiv:1412.0555
Estudio socioeconomico del municipio de Mahates - Bolivar, bases para un plan de desarrollo integral
Creators: name: Del Real Hernandez, Ivan
name: Nieves Alvarez, Oscar
Publisher: name: Universidad de Cartagena
Year: 1991
Subjects: Mahates, (Bolívar - Departamento) - Condiciones socioeconómicas
Mahates, (Bolívar - Departamento) - Política y gobierno

description: Tesis (Economista). -- Universidad de Cartagena. Facultad de Ciencia Económicas. Programa de Economía 1991.
description: El presente trabajo tiene por objeto realizar un estudio socioeconomico de Mahates - Bolivar y determinar en que aspectos existen fallas despaces o déficit y recomendar la mejor forma de corregir esas fallas y satisfacer las necesidades existentes en aras de alcanzar el desarrollo del municipio en estudio.
Periodicity for space-inhomogeneous quantum walks on the cycle
Creators: name: Arai, Toshiyuki
name: Ho, Choon-Lin
name: Ide, Yusuke
name: Konno, Norio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81Q35, 05C50

description: In this paper, we consider periodicity for space-inhomogeneous quantum walks on the cycle. For isospectral coin cases, we propose a spectral analysis. Based on the analysis, we extend the result for periodicity for Hadamard walk to some isospectral coin cases. For non-isospectral coin cases, we consider the the system that uses only one general coin at the origin and the identity coin at the other sites. In this case, we show that the periodicity of the general coin at the origin determines the periodicity for the whole system.
description: 8 pages
Evaluación de la contaminación con mercurio en peces, sedimento superficial y macrófitas en ciénagas del bajo San Jorge - Caimito (Sucre)
Creators: name: Paz Martínez, Ramón
name: Johnson Restrepo, Boris
Publisher: name: Universidad de Cartagena
Year: 2000
Subjects: Mercurio - Contaminación
Sedimento superficial - Análisis químico
Peces - Análisis químico

description: Tesis (Químico Farmacéutico),--Universidad de Cartagena. Facultad Ciencias Farmacéuticas, 2000
description: Con el objeto de estudiar la dispersión del mercurio, fue determinado por absorción atómica de vapor frio el contenido de mercurio total en muestras ambientales de sedimento superficial total, macrófitas y peces colectadas en ciénagas del sur de Sucre, de donde se extrae un porcentaje considerable de los peces comercializados en el departamento de Sucre. Las especies de peces analizados fueron: Prochilodus magdalenae, Petenia Kraussi, Hoplias malabaricus, Ageneiosus Caucanus, Plasgioscium surinamensis y Pseudoplatystoma Fasciatum; especies seleccionadas por ser las de mayor comercio y que en su mayoría son carnívoras. Asi, como las raíces de las micrófitos Eichornia crassipes y Neptunia protata, donde se ha demostrado la bioacumulación de mercurio. Adicionalmente, fue realizada una encuesta sobre la frecuencia de consumo de pescado en habitantes del municipio de Caimito (Sucre). Las concentraciones medias de mercurio total en sedimento superficial oscilan entre 0.05 +_0.0016 y 0.21+_0.058ug/g . En macrófitas entre 0.076+_0.003 y 0.185+_0.00094ug/g. El contenido de mercurio total en musculo dorsal de peces fue variado según los hábitos alimenticios de las especias, con valores desde no detectables (<_0.0128ug/g) en prochilodus magdalenae hasta 0.561ug/g en petenia kraussi. La especie Ageneiosus caucanus presentó la concentración media de mercurio total más alta en ambas ciénagas de estudios. No hubo diferencia significativa al comparar las concentraciones media de mercurio total entre las ciénagas Aguas Claras y El Reposo; para las muestra de peces y sedimentos; mientras que para las macrófitas, la especie Neptunia próstata presento la más alta concentraciones medias de mercurio total.
Insertion and Abstraction Pathways in the Reaction O(1D2) + H2-->OH + H
Creators: name: Aoiz, F. Javier
name: Bañares, Luis
name: Brouard, Mark
name: Castillo, Jesús F.
name: Denzer, Wolfgang
name: Dobbyn, Abigail J.
name: Honvault, Pascal
name: Knowles, Peter J.
name: Launay, Jean-Michel
name: Vallance, Claire
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Evaluating Construction Project Performance: A Case Study on Pillars Engineering P.L.C.
Creators: name: Kibru, Israel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: This study was trying to assess Pillar Engineering P.L.C's construction project performance in terms of time, cost, quality, Clint satisfaction and safety. In this case the paper tries to scientifically evaluate the performance of construction project based on five project performance indicator. Accordingly, in order to answer questions pertaining construction project performance, the study employed a descriptive research design using both qualitative and quantitative research approach. Subsequently the questionnaire was also distributed to the clients, consultants and contractors. From all responses, the findings demonstrate that the projects are poorly estimated in terms of cost and time ; unorganized data recording and retrieval system; low extent of management's commitment on safety issues; difficulties in overall company's management structure and working manuals establishment ; and week communication and accomplishment capacity. The study also revealed that there is much more significant problem in managing safety related practices of the projects. From those findings the research concluded that the performance status of project A had been poor performance in terms of schedule, cost and safety. Then again project B had poor project performance in terms of safety but has an average performance status on the rest of performance indicators. In another breadth, the study concludes that company's projects are not considerably efficient in using cost effective mechanisms and schedule management. Finally the research give recommended suggestions and replied what mechanisms are suitable to solve the stated problems concerning clients, consultants and contractors and how the problems can be solved in company's existing situation
Incidencia de la inversión privada en el desplazamiento intraurbano de la ciudad de Cartagena De Indias 1915 - 2015: estudio de los casos Getsemani y la Boquilla
Creators: name: Carrillo Corrales, Luisa Fernanda
name: Silva González, María Paz
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Inversionistas privados - Análisis; Inversiones - Aspectos socioeconómicos
Desplazamiento urbano - Aspectos socioeconómicos

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía. 2016
description: El propósito de la investigación es analizar la incidencia que tiene la inversión privada, más específicamente, el sector de la construcción en los desplazamientos intraurbanos masivos de sectores populares en la ciudad de Cartagena; estos, retratados bajo la perspectiva del fenómeno de Gentrificación cuya teoría enmarca el estudio para el periodo 1915- 2015
Survey on AI-Driven Voice-Assisted Remote PC Automation
Creators: name: Vijay Sarathi, Thejesh Bhagavanth, Jeevanantham, Hemasundar, Anitha
Publisher: name: Zenodo
Year: 2025

description: This paper describes a detailed survey of recent advances in AI-controlled language-supportedtechnologies, with a special focus on remote PC automation. Reviews illuminate various aspects oflanguage-based virtual assistants, network control systems, AI automation, and communication protocols,all of which contribute to the development of remote PC automation systems. This paper is intended toprovide insight into the current situation of the field, technology implementation, and future directions.
Creating superfluid vortex rings in artificial magnetic fields
Creators: name: Sachdeva, Rashi
name: Busch, Thomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Artificial gauge fields are versatile tools that allow to influence the dynamics of ultracold atoms in Bose-Einstein condensates. Here we discuss a method of artificial gauge field generation stemming from the evanescent fields of the curved surface of an optical nanofibre. The exponential decay of the evanescent fields leads to large gradients in the generalized Rabi frequency and therefore to the presence of geometric vector and scalar potentials. By solving the Gross-Pitaevskii equation in the presence of the artificial gauge fields originating from the fundamental HE$_{11}$ mode of the fibre, we show that vortex rings can be created in a controlled manner. We also calculate the magnetic fields resulting from the higher order HE$_{21}$, TE$_{01}$, and TM$_{01}$ modes and compare them to the fundamental HE$_{11}$ mode.
description: 8 pages, 6 figures
A note on spherical functors
Creators: name: Meachan, Ciaran
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We provide a new and very short proof of the fact that a spherical functor between certain triangulated categories induces an autoequivalence.
description: Final version. Accepted for publication in Bull. Lond. Math. Soc
title: Army Permit No. SAJ-2018-01103 (201801103) - Lopez Seawall
titleType: AlternativeTitle
title: Endangered Species Act - Section 7 Consultation Biological Opinion SAJ-2018-01103 (NW-RMG), Joseph Lopez, Shoreline Stabilization, Cape Coral, Lee County, Florida
Creators: name: United States. National Marine Fisheries Service. Southeast Region
Publisher: name: United States. National Marine Fisheries Service. Southeast Region
Year: 2018

description: SERO-2018-02215
Erratum: Fine Structure in Magnetization of Individual Fluxoid States [Phys. Rev. Lett. 85, 1528 (2000)]
Creators: name: Dubonos, S. V.
name: Geim, A. K.
name: Grigorieva, I. V.
name: Henini, M.
name: Palacios, J. J.
name: Schermer, J. J.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Importance sampling type estimators based on approximate marginal MCMC
Creators: name: Vihola, Matti
name: Helske, Jouni
name: Franks, Jordan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computation (stat.CO)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider importance sampling (IS) type weighted estimators based on Markov chain Monte Carlo (MCMC) targeting an approximate marginal of the target distribution. In the context of Bayesian latent variable models, the MCMC typically operates on the hyperparameters, and the subsequent weighting may be based on IS or sequential Monte Carlo (SMC), but allows for multilevel techniques as well. The IS approach provides a natural alternative to delayed acceptance (DA) pseudo-marginal/particle MCMC, and has many advantages over DA, including a straightforward parallelisation and additional flexibility in MCMC implementation. We detail minimal conditions which ensure strong consistency of the suggested estimators, and provide central limit theorems with expressions for asymptotic variances. We demonstrate how our method can make use of SMC in the state space models context, using Laplace approximations and time-discretised diffusions. Our experimental results are promising and show that the IS type approach can provide substantial gains relative to an analogous DA scheme, and is often competitive even without parallelisation.
description: 34 pages, 1 figure
Comportamiento del subsector hotelero de la ciudad de Cartagena entre 1.985 -1.998
Creators: name: Alvarez Moraga, Yaneth
name: Ballesteros Torres, Maridygna
Publisher: name: Universidad de Cartagena
Year: 2000
Subjects: Subsector hotelero - Cartagena - Análisis
Industria hotelera

description: Tesis (Administrador de Empresas) -- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas. 2000
description: El presente estudio tiene por objeto analizar los factores que incidieron en el comportamiento del subsector hotelero de la ciudad de Cartagena entre 1995 - 1998, como base para la formulación de estrategias de desarrollo del subsector.
Factors Affecting project Cost And Time Overrun: In The Case Of Addis Ababa University Building Projects
Creators: name: Mulugeta, Tadele
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This study tried to assess the effect of some dominat time and cost overrun factors in Addis Ababa University building constrcuction Projects.The researcher used descriptive research method. A questionnaire with items of 24 was distributed and then collected with a response rate of 100% and the respondents were interviewed to to get further informationon on the specified factors.Moreover, The actual project document showed that there were average 46% of time overrun and 25% of cost overrun within the projects. The findings indicate that the major causes for project time overrun were improper planning and poor scope definition that had significant consequence of design change to implement the project. The other critical factor for the cause was poor communication in which the project stakeholders couldn't work harmonically to effectively achieve the projects goals. Factors such as wner's interference and slow decision were also played very significant role in wasting the project time. The contractors' and consultants' experiences as well as equipment availability and failure played moderately significant whereas factors like contract management and quality assurance or control had very significant contribution to the overall project time overrun. Similarly, the researcher reviewed the above mentioned six project documents to assess their cost and find if there were variations between the planned and actual costs. The average cost overrun of the total projects was found to be 25%. The planned cost of each project was in millions of birrs and an average of 25% increase from each project indicated so big monetary escalations. As the respondents' responses, the major causes for the project cost were the factors described in the above table. Change in foreign rate, contractual claims, additional work at owner's request, design change, quality of materials, cost under estimation and insufficient funds were very significant factors that increase the project cost. Factors like poor schedule management and cost infliation were extremely significant to cause the overrun. Whereas factors like delays between design and procurement phases, tendering maneuvers and decision delay by supervisors were moderately significant in causing project cost so that the sum of the factors contribute to the overall project cost overrun in the project. Future research may investigate in detail including out.
Arquitectura empresarial para alinear las Tic con los procesos de negocio de las pymes del sector hoteles y restaurantes de Cartagena
Creators: name: Colón Sáenz, Skarlys Jineth
name: Siple De La Espriella, Andrés Felipe
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Organizacion empresarial
Tecnología de la información y la comunicación (TIC´S)
Arquitectura Empresarial

description: Tesis (Ingeniero de Sistemas).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería de Sistemas, 2016
description: El objetivo general de este proyecto consistió en el diseño de arquitectura empresarial que permitiera alinear las TIC con los procesos del negocio de las pymes del sector hoteles y restaurantes de Cartagena, con el fin de que se considere la importancia de implementación de arquitectura empresarial en el sector Hoteles y Restaurante en el país.
Primary decomposition and normality of certain determinantal ideals
Creators: name: Saha, Joydip
name: Sengupta, Indranath
name: Tripathi, Gaurab
Publisher: name: arXiv
Year: 2016
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13C40, 13P10

description: In this paper we study primality and primary decomposition of certain ideals which are generated by homogeneous degree $2$ polynomials and occur naturally from determinantal conditions. Normality is derived from these results.
description: arXiv admin note: substantial text overlap with arXiv:1609.02765
Algorithmic complexity of quantum capacity
Creators: name: Oskouei, Samad Khabbazi
name: Mancini, Stefano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Recently the theory of communication developed by Shannon has been extended to the quantum realm by exploiting the rules of quantum theory. This latter stems on complex vector spaces. However complex (as well as real) numbers are just idealizations and they are not available in practice where we can only deal with rational numbers. This fact naturally leads to the question of whether the developed notions of capacities for quantum channels truly catch their ability to transmit information. Here we answer this question for the quantum capacity. To this end we resort to the notion of semi-computability in order to approximately (by rational numbers) describe quantum states and quantum channel maps. Then we introduce algorithmic entropies (like algorithmic quantum coherent information) and derive relevant properties for them. Finally we define algorithmic quantum capacity and prove that it equals the standard one.
Observational Constraints on $f(T)$ gravity from varying fundamental constants
Creators: name: Nunes, Rafael C.
name: Bonilla, Alexander
name: Pan, Supriya
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use observations related to the variation of fundamental constants, in order to impose constraints on the viable and most used $f(T)$ gravity models. In particular, for the fine-structure constant we use direct measurements obtained by different spectrographic methods, while for the effective Newton's constant we use a model-dependent reconstruction, using direct observational Hubble parameter data, in order to investigate its temporal evolution. We consider two $f(T)$ models and we quantify their deviation from $Λ$CDM cosmology through a sole parameter. Our analysis reveals that this parameter can be slightly different from its $Λ$CDM value, however the best-fit value is very close to the $Λ$CDM one. Hence, $f(T)$ gravity is consistent with observations, nevertheless, as every modified gravity, it may exhibit only small deviations from $Λ$CDM cosmology, a feature that must be taken into account in any $f(T)$ model-building.
description: 9 pages, 6 figures, 3 Tables, version published in Eur.Phys.J. C
Anomalous spectral lines and relic quantum nonequilibrium
Creators: name: Underwood, Nicolas G.
name: Valentini, Antony
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe features that could be observed in the line spectra of relic cosmological particles should quantum nonequilibrium be preserved in their statistics. According to our arguments, these features would represent a significant departure from those of a conventional origin. Among other features, we find a possible spectral broadening that is proportional to the energy resolution of the recording telescope (and so could be much larger than any conventional broadening). Notably, for a range of possible initial conditions we find the possibility of spectral line "narrowing", whereby a telescope could observe a line that is narrower than it is conventionally able to resolve. We discuss implications for the indirect search for dark matter, with particular reference to some recent controversial spectral lines.
description: 14 pages, 5 figures. Updated to match published version
Diagnóstico y alternativas de solución para el manejo de aguas subterráneas en tanques de almacenamiento de hidrocarburos
Creators: name: Barón Lacayo, Juan Carlos
name: Hoyos Cuadrado, Ana Karina
Publisher: name: Universidad de Cartagena
Year: 2002
Subjects: Aguas subterráneas
Abastecimiento de agua subterránea
Torres para tanques de aguas subterráneas

description: Tesis (Ingeniero Civil).-- Universidad de Cartagena. Facultad de Ciencias Económicas E Ingeniería. Programa de Ingeniería Civil, 2002.
description: El presente estudio tiene por objeto diagnosticar las características geotecnicas de los suelos que conforman la cimentación de los tanques de almacenamiento de hidrocarburos y según sea el caso plantear alternativas para garantizar su estabilidad.
title: Army permit No. SAJ-2007-04121 (200704121) - Haulover Marina Fuel Docks
titleType: AlternativeTitle
title: Endangered Species Act - Section 7 Consultation Biological Opinion SER-2018-19218, Haulover Park Marina fuel dock expansion, SAJ-2007-04121
Creators: name: United States. National Marine Fisheries Service. Southeast Region
Publisher: name: United States. National Marine Fisheries Service. Southeast Region
Year: 2018

description: SERO-2018-02214
Charge pumping driven by the laser-induced dynamics of the exchange splitting
Creators: name: Freimuth, Frank
name: Blügel, Stefan
name: Mokrousov, Yuriy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that electric currents are induced in inversion asymmetric ferromagnets if the exchange splitting varies in time after excitation by laser pulses. We interpret this phenomenon as the magnetic variant of the inverse Edelstein effect. Based on \textit{ab initio} calculations we determine the size of this effect in Co/Pt(111) and Mn/W(001) magnetic bilayer systems and investigate its dependence on the magnetization direction. The comparison of our theoretical results to experiments measuring the THz signal emitted after laser excitation suggests that ultrafast demagnetization in 3$d$ transition metal ferromagnets is dominated by transverse spin fluctuations rather than by a reduction of the exchange splitting.
Technological Innovation and New Product Introduction: The Case of Ethiopian Metal Development Institute
Creators: name: Lakew, Mesfin
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Organizations ability to continuously innovate its product is essential to its business success. Also, firms' survival and improved performance hinge on introduction of innovative new products. This study is a product-oriented project which is focused in technological innovation and/or new product development and introduction process for Metal Industry Development Institute, an institute which offers innovative new products to the Metal and Engineering Industries. The objective of the study is to find and develop a framework which would clarify the entire product development and introduction process and increase the success rate on the new product launches. This study proposes elaborated guidelines which the institute could follow in its product development and introduction process. The product introduction plan was developed based on the Booz, Allen and Hamilton (1982) model, which is a reliable and successful method, used in different successful new product development cases. The Booz, Allen and Hamilton (1982) model was adopted according to the institute´s strategy. The researcher hopes that the final results could help the institute to have a clear understanding of each stage in the product introduction process and implement each of these stages in accordance with the type of the project or new product development strategy. The study also suggests that a research opportunity exists in implementing or testing of the proposed framework. It also be useful to open the door for academic research so as to determine the impact of this study on both practice and research
A web-based platform for blind and visually impaired Russian-speaking children to learn English vocabulary and spelling
Creators: name: Kanatbek kyzy, Malika
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Blind and Visually Impaired Learners
subject: English language--Acquisition
subject: Kyrgyzstan
subject: Accessible educational technology

description: In developing countries, children with blindness and visual impairments (BVI) have limited access to education. They are placed under the “protection” of the Ministry of Health rather than the Ministry of education because disability is viewed as a disease that must be cured. Therefore, instead of creating an accessible environment for development, they try to rehabilitate or fix children to make them “normal.” I was born in Kyrgyz Republic, one of the developing countries where BVI children have limited educational opportunities. One of the commonly identified difficulties that children with BVI experience is learning foreign languages because adequate language learning materials are rare and inaccessible. Hence, I decided to develop an educational technology to support BVI children in improving their English vocabulary. BeeVoice represents an accessible audio interactive gamified web platform for BVI children. It will utilize Universal Design for Learning (UDL) principles for accessibility, gamification techniques for engagement, the explicit vocabulary learning approach and associative networks theory for vocabulary acquisition, and spelling mode for spelling acquisition.
Potential theory of subordinate killed Brownian motion
Creators: name: Kim, Panki
name: Song, Renming
name: Vondraček, Zoran
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J45, 60J50, 60J75

description: Let $W^D$ be a killed Brownian motion in a domain $D\subset {\mathbb R}^d$ and $S$ an independent subordinator with Laplace exponent $ϕ$. The process $Y^D$ defined by $Y^D_t=W^D_{S_t}$ is called a subordinate killed Brownian motion. It is a Hunt process with infinitesimal generator $-ϕ(-Δ|_D)$, where $Δ|_D$ is the Dirichlet Laplacian. In this paper we study the potential theory of $Y^D$ under a weak scaling condition on the derivative of $ϕ$. We first show that non-negative harmonic functions of $Y^D$ satisfy the scale invariant Harnack inequality. Subsequently we prove two types of scale invariant boundary Harnack principles with explicit decay rates for non-negative harmonic functions of $Y^D$. The first boundary Harnack principle deals with a $C^{1,1}$ domain $D$ and non-negative functions which are harmonic near the boundary of $D$, while the second one is for a more general domain $D$ and non-negative functions which are harmonic near the boundary of an interior open subset of $D$. The obtained decay rates are not the same, reflecting different boundary and interior behaviors of $Y^D$.
description: A few typos corrected
El taller didáctico en el proceso de comprensión lectora de los niños y niñas de cuarto grado del Instituto metropolitano de Cartagena
Creators: name: Fonseca Beltrán, Bleidys
name: Gómez Correa, Mayra
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Comprensión de lectura

description: Tesis (Licenciado en Educación Básica con Énfasis en Lengua Castellano) -- Universidad de Cartagena en Convenio con la Universidad del Tolima. Facultad de Ciencias Sociales y Educación, Licenciatura en Educación Básica con Énfasis en Lengua Castellano, 2016
description: Después de observar las dificultades y falencias presentes en la Institución Educativa Metropolitano de Cartagena, escogimos el grado cuarto de primaria para desarrollar nuestro proyecto enfatizado en la construcción y el fortalecimiento de la comprensión lectora, ya que en este grado encontramos grandes falencias referentes a la comprensión lectora, el cual es de vital importancia para lograr el propósito institucional y personal de cada uno de los estudiantes allí presentes. Con este proyecto pretendemos que tanto los docentes como los padres de familia tomen conciencia de la importancia de ayudar a los niños en el proceso de enseñanza-aprendizaje.