cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Internet searches conducted by people who stutter: association with speech-language therapy and severity of stuttering
Creators: name: Krhen, Ana Leko
name: Šušak, Lucia
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Stuttering is a fluency disorder that is multidimensional because it involves more than speech difficulties. People who stutter can use the Internet to find out more about their condition and connect with other people in the same position, yet in Croatia, there are not nearly as many online sources on stuttering or as many possibilities to connect with other people who stutter as in the USA or Great Britain. If one does not speak English well, a lot of information about stuttering will simply be denied to them, especially to those who have never received speech therapy. The present study, the first of its kind in Croatia, was conducted in order to understand how often and for what reasons people who stutter search for Internet resources related to their condition. The study also assessed whether Internet use depended on age, experience with speech-language therapy, self-reported satisfaction with such therapy, and self-assessed severity of stuttering. An online questionnaire integrating the 9-Point Stuttering Severity Scale was developed for this study and administered to 51 individuals aged 18 years and older in Croatia. All collected data and findings on the internet searches come from the questionnaire. Age did not significantly affect the frequency or purpose of Internet searches. Individuals who were not attending speech therapy were more likely to search online sources about stuttering than those who received it before. People who rated their stuttering as severe were more likely to search online sources for stuttering than those who rated their condition as mild. These results suggest that there is a need for more useful, high-quality online content and materials in Croatian for people who stutter. Such resources would offer people who stutter a new world of support, mutual understanding, shared experiences and knowledge, and ways for them to help themselves.
The cross-correlation between 21cm intensity mapping maps and the Lyman-alpha forest in the post-reionization era
Creators: name: Carucci, Isabella P.
name: Villaescusa-Navarro, Francisco
name: Viel, Matteo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the cross-correlation signal between 21cm intensity mapping maps and the Lyman-alpha forest in the fully non-linear regime using state-of-the-art hydrodynamic simulations. The cross-correlation signal between these fields can provide a coherent and comprehensive picture of the neutral hydrogen (HI) content of our Universe in the post-reionization era, probing both its mass content and volume distribution. We compute the auto-power spectra of both fields together with their cross-power spectrum at z = 2.4 and find that on large scales the fields are completely anti-correlated. This anti-correlation arises because regions with high (low) 21cm emission, such as those with a large (low) concentration of damped Lyman-alpha systems, will show up as regions with low (high) transmitted flux. We find that on scales smaller than k = 0.2 h/Mpc the cross-correlation coefficient departs from -1, at a scale where non-linearities show up. We use the anisotropy of the power spectra in redshift-space to determine the values of the bias and of the redshift-space distortion parameters of both fields; we find that the errors on the value of these parameters could decrease by 30% when adding data from the cross-power spectrum in a conservative analysis. Our results point out that linear theory is capable of reproducing the shape and amplitude of the cross-power up to rather non-linear scales. Finally, we find that the 21cm-Lya cross-power spectrum can be detected by combining data from a BOSS-like survey together with 21cm intensity mapping observations by SKA1-MID with a S/N ratio higher than 3 in the range 0.06< k <1 h/Mpc. We emphasize that while the shape and amplitude of the 21cm auto-power spectrum can be severely affected by residual foreground contamination, cross-power spectra will be less sensitive to that and therefore can be used to identify systematics in the 21cm maps.
description: Accepted for publication in JCAP
En mayúsculas y al rojo vivo: Estética de la crónica roja en Cartagena
Creators: name: Martín Cabarcas, Yennifer María
name: Rendón Mercado, Sindy Daniela
Publisher: name: Universidad de Cartagena
Year: 2011
Subjects: Simbolos
Semiología ( Lingüística )
Semiótica; Análisis del discurso

description: Tesis (Profesional en Linguística y Literatura) -- Universidad de Cartagena. Facultad de ciencias humanas. Programa de linguística y literatura, 2011
description: La prensa tiene una importancia cada vez mayor a la hora de dar a conocer las distintas realidades que tienen lugar en las ciudades colombianas. Esta investigación ejecutó un análisis semiótico discursivo de la prensa sensacionalista en Cartagena, con el propósito de explicar cómo el creciente fenómeno de la violencia urbana se representa en ella y de comprender las implicaciones de este relato, en lo que tiene que ver con la manera como los habitantes conocen, perciben e imaginan a la ciudad. Q´Hubo, Al día y El teso son los periódicos que realizan el cubrimiento de los hechos de sangre, en momentos en que éstos han ganado espacio en el mundo cotidiano, en parte por el accionar de las bandas delincuenciales al servicio del narcotráfico. Los tres, nacidos en lapso de los últimos cinco años, Q’Hubo, primero como Nuestro Diario en el 2006, y El teso y Al día, a finales del 2010, compiten por su posicionamiento en el mercado, a partir del uso de una estética sensacionalista, en donde prima, además de una cuidadosa selección de acontecimiento que despiertan el morbo, constantes apelaciones al lenguaje popular y diversas estrategias tipográficas que, en aras de la espectacularización, explotan los significados del tamaño de la letra en los titulares, de los colores con los que ésta es rellenada o la distribución de las imágenes en la portada.
Three-loop vacuum integrals with arbitrary masses
Creators: name: Freitas, Ayres
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Three-loop vacuum integrals are an important building block for the calculation of a wide range of three-loop corrections. Until now, only results for integrals with one and two independent mass scales are known, but in the electroweak Standard Model and many extensions thereof, one often encounters more mass scales of comparable magnitude. For this reason, a numerical approach for the evaluation of three-loop vacuum integrals with arbitrary mass pattern is proposed here. Concretely, one can identify a basic set of three master integral topologies. With the help of dispersion relations, each of these can be transformed into one-dimensional or, for the most complicated case, two-dimensional integrals in terms of elementary functions, which are suitable for efficient numerical integration.
description: 17 pages; ancillary file with subtraction formulae for the U5 master integral in Mathematica format are supplied with this submission. v2: minor typos corrected and few references added, version to published in JHEP. v3: typos in eqs. (23), (31), (35) and (61) corrected
Visual Communication of Probabilistic Information To Enhance Decision Support
Creators: name: Anne Heggli
name: Benjamin Hatchett
name: Zach Tolby
name: Kathryn Lambrecht
name: Meghan Collins
name: Lynda Olman
name: Matthew Jeglum
Publisher: name: Zenodo
Year: 2023
Subjects: National Weather Service
Probabilistic Information

description: Template for PI Visualizations. Use Excel to generate PI graphics that can be copied and pasted into PowerPoint to then add the remaining information to complete the PI Visualization. 

Google Slides and Sheets templates here.
description: This project was funded by the National Oceanic and Atmospheric Association Weather Program Office Social Sciences Program under Grant #NA21OAR4590208.
Visual Communication of Probabilistic Information To Enhance Decision Support
Creators: name: Heggli, Anne
name: Hatchett, Benjamin
name: Tolby, Zach
name: Lambrecht, Kathryn
name: Collins, Meghan
name: Olman, Lynda
name: Jeglum, Matthew
Publisher: name: Zenodo
Year: 2023

description: Template for PI Visualizations. Use Excell for PI populate charts and PowerPoint to copy and paste and add additional information to complete the PI Visualization.
Algoritmos matemáticos eficientes
Creators: name: León Tellez, Julio Cesar
Publisher: name: Universidad de Cartagena
Year: 2000
Subjects: Algoritmos
Programa ( matemáticas )
Modelos ( matemáticas )

description: Tesis ( Matemático ) -- Universidad de Cartagena. Facultad de Ciencias Exactas y Naturales. Programa de Matemáticas, 2000
description: El presente estudio tiene por objeto es introducir a turbo C++ algoritmos matemáticos que no están en su librería, en forma de funciones,si no estarán en un include.
Visual Communication of Probabilistic Information To Enhance Decision Support
Creators: name: Heggli, Anne
name: Hatchett, Benjamin
name: Tolby, Zach
name: Lambrecht, Kathryn
name: Collins, Meghan
name: Olman, Lynda
name: Jeglum, Matthew
Publisher: name: Zenodo
Year: 2023
Subjects: National Weather Service
Probabilistic Information

description: Template for PI Visualizations. Use Excell for PI populate charts and PowerPoint to copy and paste and add additional information to complete the PI Visualization.
description: This project was funded by the National Oceanic and Atmospheric Association Weather Program Office Social Sciences Program under Grant #NA21OAR4590208.
Project Sustainability Beyond Donor Support: The Case Of University Hiv &Sti Prevention Project Implimented By Nastad Ethiopia
Creators: name: Habte, Girma
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Many decades have passed since developed countries have started to donate the third world developing countries and societies but poverty still continue to nag at the millions of the poor in these countries. Studies show that donor support for development, emergency rehabilitation, and humanitarian aid dies soon after the celebration of outcome achieved by these donor supports. The problem is sustainability problem. This research study was born from the heartfelt need to know the sustainability beyond donor support of the chosen case study project, at the project deliverable/outcomes level. The architecture of the study is a mixed method of enquiry. The enquiries were designed from the project predefined sustainability indicators; organized and contextualized in the sustainability frame work designed by USAID SF. A purposive sampling of key informants was chosen for interview, to explore the realities of the project sustainability issues. Further respondents with very close acquaintances were chosen for quantitative survey using Snowball sampling method using recommendations of purposively selected respondents. The inquiries were designed to ask the existence of structures, deliverables and outcomes brought by the project and then their effectiveness. Factors affecting or supporting sustainability were also inquired and summarized. The overall result is to show that the project deliverables and outcomes recommended at out set for sustainability were found to be virtually not sustained and requires the institutions and other stakeholders' effort to revitalize the situations. Finally, it is recommended that other beneficiary institutions should check their position in this regard. The academia is hereby also called for further research & inclusion of sustainability management in the study of project management
The Survey of Centaurus A's Baryonic Structures (SCABS). II. The Extended Globular Cluster System of NGC5128 and its Nearby Environment
Creators: name: Taylor, Matthew A.
name: Puzia, Thomas H.
name: Muñoz, Roberto P.
name: Mieske, Steffen
name: Lançon, Ariane
name: Zhang, Hongxin
name: Eigenthaler, Paul
name: Bovill, Mia Sauda
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Wide-field $u'g'r'i'z'$ Dark Energy Camera observations centred on the giant elliptical galaxy NGC5128 covering $\sim21deg^2$ are used to compile a new catalogue of $\sim3200$ globular clusters (GCs). We report 2404 new candidates, including the vast majority within $\sim140$kpc of NGC5128. We find evidence for a transition at a galactocentric radius of $R_{\rm gc}\approx55$kpc from GCs intrinsic to NGC5128 to those likely to have been accreted from dwarf galaxies or that may transition to the intra-group medium of the Centaurus A galaxy group. We fit power-law surface number density profiles of the form $Σ_{N, R_{\rm gc}}\propto R_{\rm gc}^Γ$ and find that inside the transition radius, the red GCs are more centrally concentrated than the blue, with $Γ_{\rm inner,red}\approx-1.78$ and $Γ_{\rm inner,blue}\approx-1.40$. Outside this region both profiles flatten, more dramatically for the red GCs ($Γ_{\rm outer,red}\approx-0.33$) compared to the blue ($Γ_{\rm outer,blue}\approx-0.61$), although the former is more likely to suffer contamination by background sources. The median $(g'\!-\!z')_0\!=\!1.27$mag colour of the inner red population is consistent with arising from the amalgamation of two giant galaxies each less luminous than present-day NGC5128. Both in- and out-ward of the transition radius, we find the fraction of blue GCs to dominate over the red GCs, indicating a lively history of minor-mergers. Assuming the blue GCs to originate primarily in dwarf galaxies, we model the population required to explain them, while remaining consistent with NGC5128's present-day spheroid luminosity. We find that several dozen dwarfs of luminosities $L_{dw,V}\simeq10^{6-9.3}L_{V,\odot}$, following a Schechter luminosity function with a faint-end slope of $-1.50\leqα\leq-1.25$ is favoured, many of which may have already been disrupted in NGC5128's tidal field.
description: 26 pages, 15 figures, 9 tables; revised version accepted to MNRAS
From Talking about Loot Boxes to Discussing Political Economy: Conceptualizing Critical Game Literacy
Creators: name: Prax, Patrick
Publisher: name: gamevironments
Year: 2022

description: This article follows the call for action from Kellner and Share (2007) to educate for critical media literacy by extending and concretizing a framework for critical media and game literacy from Buckingham (2015) based on contributions from critical media studies, game studies, and reflexive game design. The article discusses critical media literacy education as a part of critical citizen education and critical pedagogy (Johnson and Morris 2010), which takes their inspirations from the Pedagogy of the Oppressed (Freire 2018). After that, the article discusses two cases from university education in Game Design for what critical game and media education should contain. These cases showcase the approach and exemplify why it is important to take this approach to media literacy. The article concludes that critical game literacy requires learning about the properties of the medium through production: learning about games by making games and a contextualization of that kind of learning. This process can link game design to an understanding of the systemic and economic scaffolding of game production. Linking the political and the practical is necessary in order to be able to step beyond one’s individual perspective in a system and take collective decisions, as well as fighting against injustice and marginalization. The cases show that literacy education that does not take these systemic and political points into account may lead to inadequate conclusions about what to do in order to improve the situation in practice as well as in policy.
description: gamevironments, No. 17 (2022): Special Issue "Social Justice"
Factores asociados a la tuberculosis pulmonar en los pacientes atendidos en el puesto de salud Costa Hermosa adscrito al Hospital Materno Infantil de Soledad en el periodo comprendido de Enero del 2010 a Mayo del 2011
Creators: name: Cujía Mendoza, María
name: Castellanos Paternina, Loida
Publisher: name: Universidad de Cartagena
Year: 2012
Subjects: Tuberculosis pulmonar
Salud pública

description: Tesis (Especialista en Gerencia en Salud) – Universidad de Cartagena. Facultad de Ciencias Económicas. Especialización en Gerencia en Salud, 2012
description: El objetivo de esta investigación busca determinar los factores asociados a la Tuberculosis pulmonar en los pacientes atendidos en el puesto de salud de Costa Hermosa adscrito al Hospital Materno Infantil de Soledad en el periodo comprendido de enero del 2010 a mayo del 2011. Y a su vez caracterizar al paciente con tuberculosis pulmonar teniendo en cuenta factores endógenos: Edad, género, estado nutricional, vacunación con BCG y cumplimiento del tratamiento antituberculoso.
Workload management for safe reintegration of injured footballers into full training and game play
Creators: name: Boukarim, Elias
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Managing athlete workload is widely believed to be an important part of reducing injury risk and elite sports teams invest considerable time and resources into athlete workload monitoring systems. This has led to extensive research into the most effective approaches to workload monitoring in healthy athletes but there has been a notable lack of research exploring workload monitoring in injured athletes. Workload monitoring is likely to be important for injured athletes because their workload will typically undergo large changes from week-to-week, as they attempt to recover from their injury and then return-to-play (RTP) in the shortest time possible. The current thesis is divided into three parts. Part 1 provides an overview of existing cohort studies that have investigated the relationship between athlete workload and injury risk in healthy and injured athletes. This review demonstrates the positive association between high workloads and injury risk in healthy athletes, and highlights how the literature on the workload management of injured athletes is scarce. Part 2 describes an analysis of athlete workload data that was undertaken in 28 injured elite Australian football (soccer) athletes. The analysis explores the time course of athlete workload changes that occur in the 4 weeks before and after returning to play following injuries of different severity. All injuries resulted in a reduction in absolute workload during the pre-RTP period relative to the post-RTP period, however the magnitude and timing of this reduction varied across injury severity groups. Athletes with severe injuries presented with the highest average acute to chronic workload ratios during the pre-RTP period compared to athletes with mild and moderate injuries. Lastly, part 3 discusses the importance of athlete workload monitoring in injured athletes and provides recommendations for future research and clinical practice based on the findings from part 1 and part 2.
Impacto de caries dental sobre la calidad de vida en escolares de la Ciudad de Cartagena
Creators: name: Meza Jiménez, Adriana
name: Pérez Cassiani, Jorge
Publisher: name: Universidad de Cartagena
Year: 2018
Subjects: Odontología preventiva
Caries dental - Prevención y control
Caries dental - Niños
Medicina familiar

description: Tesis (Odontólogo). -- Universidad de Cartagena. Facultad de odontología. Departamento de Investigación, 2018
description: Dentro de esta investigación, se busca evaluar el impacto de la Caries dental sobre la calidad de vida en adolescentes escolares de 11 a 14 años de una institución de la ciudad de Cartagena.
Dynamic portfolio optimization with liquidity cost and market impact: a simulation-and-regression approach
Creators: name: Zhang, Rongju
name: Langrené, Nicolas
name: Tian, Yu
name: Zhu, Zili
name: Klebaner, Fima
name: Hamza, Kais
Publisher: name: arXiv
Year: 2016
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Computational Finance (q-fin.CP)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Economics and business
subject: G.3; I.2.8; G.1.6; I.6.8; H.4.2; G.1.2; J.1
subject: 91G10, 93E20, 91B24, 65C05, 91G60, 91B06, 90C39, 93E24

description: We present a simulation-and-regression method for solving dynamic portfolio allocation problems in the presence of general transaction costs, liquidity costs and market impacts. This method extends the classical least squares Monte Carlo algorithm to incorporate switching costs, corresponding to transaction costs and transient liquidity costs, as well as multiple endogenous state variables, namely the portfolio value and the asset prices subject to permanent market impacts. To do so, we improve the accuracy of the control randomization approach in the case of discrete controls, and propose a global iteration procedure to further improve the allocation estimates. We validate our numerical method by solving a realistic cash-and-stock portfolio with a power-law liquidity model. We quantify the certainty equivalent losses associated with ignoring liquidity effects, and illustrate how our dynamic allocation protects the investor's capital under illiquid market conditions. Lastly, we analyze, under different liquidity conditions, the sensitivities of certainty equivalent returns and optimal allocations with respect to trading volume, stock price volatility, initial investment amount, risk-aversion level and investment horizon.
description: 25 pages, 4 figures
Breve historia del asesinato
Creators: name: Correa Villalobos, Luis
Publisher: name: Universidad de Cartagena
Year: 1979
Subjects: Derecho penal
Asesinato - Historia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1979
description: Transformaciones que han surgido y variado el contenido del asesinato, como sucede, con los estupro, rapto, abortos, hurtos, daños, engaños, promesas, doncellez, virginidad, relaciones jerárquicas, que han configurado distintamente el contenido y fin de los artículos o tipos penales, dándoles una orientación diferente.
Confined Band Gap in an Air-Bridge Type of Two-Dimensional AlGaAs Photonic Crystal
Creators: name: Asakawa, K.
name: Carlsson, N.
name: Ikeda, N.
name: Inoue, K.
name: Kawai, N.
name: Sugimoto, Y.
name: Takemori, T.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Tilt-stability, vanishing theorems and Bogomolov-Gieseker type inequalities
Creators: name: Sun, Hao Max
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We investigate the tilt-stability of stable sheaves on projective varieties with respect to certain tilt-stability conditions depends on two parameters constructed by Bridgeland. For a stable sheaf, we give effective bounds of these parameters such that the stable sheaf is tilt-stable. These allow us to prove new vanishing theorems for stable sheaves and an effective Serre vanishing theorem for torsion free sheaves. Using these results, we also prove Bogomolov-Gieseker type inequalities for the third Chern character of a stable sheaf on $\mathbb{P}^3$.
description: published version
Evaluación estructural y funcional del pavimento existente comprendido entre el tramo glorieta Santander - Bocagrande y solución de diseño para el Sitm de la ciudad de Cartagena
Creators: name: Diaz Barros, Fernando Javier
name: Garcia Diaz, German Enrique
name: Garces, Patricia (Director)
Publisher: name: Universidad de Cartagena
Year: 2008
Subjects: Pavimentos
Proyecto sitm - Cartagena
Resistencia de materiales

description: Tesis (Ingeniero Civil).--Universidad de Cartagena. Facultad de Ciencias E Ingeniería. Programa de Ingeniería Civil, 2008.
description: El presente estudio tiene por objeto evaluar y analizar la estructura de pavimento existente y diseñar la estructura de pavimento requerida para el tramo glorieta santander- bocagrande del SITM de la ciudad de cartagena, de tal manera que cumpla con el comportamiento, nivel de servicio y periodo de diseño establecido por TRANSCARIBE S.A. caracterizando todos los materiales que se emplearan en su construcción.
Supplementary Material for "Coarse-Grained Modeling of EUV Patterning Process Reflecting Photochemical Reactions and Chain Conformations"
Creators: name: Kim, Tae-Yi
name: Kang, In-Hwa
name: Park, Juhae
name: Kim, Myungwoong
name: Oh, Hye-Keun
name: Hur, Su-Mi
Publisher: name: Zenodo
Year: 2023

description: The .zip file contains the supplementary material, i.e. Figure S1: Top view of residual patterns and chain conformations Figure S2: LER values as a function of chain lengths Figure S3: Variation in the distribution of acid and deprotection sites along the x-direction during the PEB process Figure S4: 3D mapping of photon distributions under 50 mJ/cm2 Figure S5: 2D colormaps of local density variation of dissolved polymers during the development process, Figure S6: Effect of initial chain immobility at Rg/Rg,0 = 2.0 on LER.
Accretion of a relativistic, collisionless kinetic gas into a Schwarzschild black hole
Creators: name: Rioseco, Paola
name: Sarbach, Olivier
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We provide a systematic study for the accretion of a collisionless, relativistic kinetic gas into a nonrotating black hole. To this end, we first solve the relativistic Liouville equation on a Schwarzschild background spacetime. The most general solution for the distribution function is given in terms of appropriate symplectic coordinates on the cotangent bundle, and the associated observables, including the particle current density and stress energy-momentum tensor, are determined. Next, we explore the case where the flow is steady-state and spherically symmetric. Assuming that in the asymptotic region the gas is described by an equilibrium distribution function, we determine the relevant parameters of the accretion flow as a function of the particle density and the temperature of the gas at infinity. In particular, we find that in the low temperature limit the tangential pressure at the horizon is about an order of magnitude larger than the radial one, showing explicitly that a collisionless gas, despite exerting kinetic pressure, behaves very differently than an isotropic perfect fluid, and providing a partial explanation for the known fact that the accretion rate is much lower than in the hydrodynamic case of Bondi-Michel accretion. Finally, we establish the asymptotic stability of the steady-state spherical flows by proving pointwise convergence results which show that a large class of (possibly nonstationary and nonspherical) initial conditions for the distribution function lead to solutions of the Liouville equation which relax in time to a steady-state, spherically symmetric configuration.
description: 38 pages, 6 figures. Updated version with typos corrected. To appear in Classical and Quantum Gravity
Assessment Of Human Resource Management Practices In Ethiopian Construction Works Corporation
Creators: name: Alemu, Samuel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The purpose of this research was to assess the human resource management practices in Ethiopian Construction Works Corporation. Data was gathered from employees of head office. Descriptive analysis method was used to analyze the data and both qualitative and quantitative approaches were employed. Primary data was collected using five Point Likert-Scale questionnaires; 80 responses were properly filled and returned. After the required data are collected descriptive (i.e. frequency, percentage and mean) analysis were used to analyze the data using SPSS version 20. The findings indicated that there was no proper planning for the recruitment and selection process, Majority of the employees was not treated fairly by the recruitment panels, the recruitment process focuses more internally, the employees were not satisfied by the benefit packages of the Corporation as compared to most other organizations offer. The Corporation should adjust the benefit packages so that it can retain employees who are dissatisfied by the benefit packages of the corporation.
Modelo de autoevaluación con miras a la acreditación de los programas educación superior a distancias de la Universidad de Cartagena
Creators: name: Lora Sfer, Amaury
Publisher: name: Universidad de Cartagena
Year: 1998
Subjects: subject: Universidad a distancia - Cartagena (Colombia)
subject: Evaluación
subject: Currículo - Educación superior

description: Los programas de educación a distancia poseen características muy particulares que deben tenerse en cuenta para iniciar el proceso de evaluación de sus programas, lo cual hace necesario adaptar y complementar el modelo propuesto con el CNA. El propósito es proponer un modelo ajustado a las características y necesidades particulares de los PESD, bajo las mismas condiciones de calidad y excelencia académica exigida por el Sistema Nacional de Acreditación para la autoevaluación de programas de pregrado.
How formation time-scales affect the period dependence of the transition between rocky super-Earths and gaseous sub-Neptunes and implications for $η_\oplus$
Creators: name: Lopez, Eric D.
name: Rice, Ken
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: One of the most significant advances by NASA's ${\mathit Kepler}$ Mission was the discovery of an abundant new population of highly irradiated planets with sizes between the Earth and Neptune. Subsequent analysis showed that at ~1.5 Earth radii there is a transition from a population of predominantly rocky super-Earths to non-rocky sub-Neptunes, which must have substantial volatile envelopes. Determining the origin of these highly irradiated rocky planets will be critical to our understanding of low-mass planet formation and the frequency of potentially habitable Earth-like planets. These short-period rocky super-Earths could simply be the stripped cores of sub-Neptunes, which have lost their envelopes due to atmospheric photo-evaporation or other processes, or they might instead be a separate population of inherently rocky planets, which never had significant envelopes. Using models of atmospheric photo-evaporation, we show that if most bare rocky planets are the evaporated cores of sub-Neptunes then the transition radius should decrease as surveys push to longer orbital periods, since on wider orbits only planets with smaller less massive cores can be stripped. On the other hand, if most rocky planets formed after their disks dissipate then these planets will have formed without initial gaseous envelopes. In this case, we use N-body simulations of planet formation to show that the transition radius should increase with orbital period, due to the increasing solid mass available in their disks. Moreover, we show that distinguishing between these two scenarios should be possible in coming years with radial velocity follow-up of planets found by TESS. Finally, we discuss the broader implications of this work for current efforts to measure $η_{\mathrm{\oplus}}$, which may yield significant overestimates if most rocky planets form as evaporated cores.
description: 8 pages, 4 figures, accepted for publication in the Monthly Notices of the Royal Astronomical Society
Estudio del comportamiento hidráulico de un sistema de drenaje pluvial en cubiertas y áreas privadas de edificaciones
Creators: name: Arroyo Quintero, Henry
name: García Díaz, Hernando José
name: Andrade, Ramón (Asesor)
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Drenaje pluviales - Cartagena
Drenajes urbanos

description: Tesis (Ingeniero Civil).-Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería Civil, 2016
description: El principal objetivo de este trabajo fue estudiar el comportamiento hidráulico de las aguas pluviales en los sistemas de evacuación en la edificaciones, en donde se pudo establecer cuál es la mejor combinación de los distintos tipos de rejillas y tragantes para garantizar que el sistema sea lo más eficiente posible, dependiendo del área en la que va a trabajar el sistema; esto comprende caudales máximos de desagüe por rejillas y tragantes.
A revisited Johnson-Mehl-Avrami-Kolmogorov model and the evolution of grain-size distributions in steel
Creators: name: Hömberg, D.
name: Patacchini, F. S.
name: Sakamoto, K.
name: Zimmer, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The classical Johnson-Mehl-Avrami-Kolmogorov approach for nucleation and growth models of diffusive phase transitions is revisited and applied to model the growth of ferrite in multiphase steels. For the prediction of mechanical properties of such steels, a deeper knowledge of the grain structure is essential. To this end, a Fokker-Planck evolution law for the volume distribution of ferrite grains is developed and shown to exhibit a log-normally distributed solution. Numerical parameter studies are given and confirm expected properties qualitatively. As a preparation for future work on parameter identification, a strategy is presented for the comparison of volume distributions with area distributions experimentally gained from polished micrograph sections.
description: 16 pages, 19 figures
Macroscopic Two-Dimensional Polariton Condensates
Creators: name: Ballarini, Dario
name: Caputo, Davide
name: Muñoz, Carlos Sánchez
name: De Giorgi, Milena
name: Dominici, Lorenzo
name: Szymańska, Marzena H.
name: West, Kenneth
name: Pfeiffer, Loren N.
name: Gigli, Giuseppe
name: Laussy, Fabrice P.
name: Sanvitto, Daniele
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report a record-size, two-dimensional polariton condensate of a fraction of a millimeter radius free from the presence of an exciton reservoir. This macroscopically occupied state is formed by the ballistically expanding polariton flow that relaxes and condenses over a large area outside of the excitation spot. The density of this trap-free condensate is < 1 polariton/μm^2, reducing the phase noise induced by the interaction energy. Moreover, the backflow effect, recently predicted for the nonparabolic polariton dispersion, is observed here for the first time in the fast-expanding wave packet.
Aspectos importantes del sector agropecuario del Departamento de Sucre y su incidencia en el desarrollo económico y social
Creators: name: Uribe Cotera, Alfonso
name: Jimenez Martinez, Amaury
Publisher: name: Universidad de Cartagena
Year: 1983
Subjects: Agricultura
Sector agropecuario - Sucre - Desarrollo económico

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1983.
description: El presente estudio tiene por objeto obtener un conocimiento amplio y concreto acerca del departamento de sucre y especialmente del sector agropecuario, que es la base de su economía para comprobar si se le ha dado el estimulo necesario a este renglón económico tanto del gobierno seccional como del gobierno central.
Project Management Practices In Development Bank Of Ethiopia; The Case Of Non-Performing Loan Mega Projects Under An Ongoing Concern Scheme
Creators: name: Mosa, Kefale
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The objective of the research was assessment on project management practices in DBE in case of projects under an ongoing concern scheme. The assessment was conducted using DBE PRLRD project team and project team at five mega projects site. The data was collected based on five point likert scale measurement and analyzed using descriptive statistic such as frequency, mean, and standard deviation; and presented using tables and textual constructs. The findings from the analysis shows that practice of project management in DBE based on selected project management practices project scope management, project human resource management, project communication management and project risk management practice were not properly and effectively applied while appraising, implementing, monitoring and controlling the mega projects. Finally, it was recommended that DBE have apply identified project management practices starting from early stage of projects properly and effectively to save upcoming projects from failure; further research also recommended for remaining project management practices, and the assessment also better if conducted for other sizes of projects in addition to mega projects.
Persistence Diagrams as Diagrams: A Categorification of the Stability Theorem
Creators: name: Bauer, Ulrich
name: Lesnick, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: Computational Geometry (cs.CG)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 13P20, 55U99

description: Persistent homology, a central tool of topological data analysis, provides invariants of data called barcodes (also known as persistence diagrams). A barcode is simply a multiset of real intervals. Recent work of Edelsbrunner, Jablonski, and Mrozek suggests an equivalent description of barcodes as functors R -> Mch, where R is the poset category of real numbers and Mch is the category whose objects are sets and whose morphisms are matchings (i.e., partial injective functions). Such functors form a category Mch^R whose morphisms are the natural transformations. Thus, this interpretation of barcodes gives us a hitherto unstudied categorical structure on barcodes. The aim of this note is to show that this categorical structure leads to surprisingly simple reformulations of both the well-known stability theorem for persistent homology and a recent generalization called the induced matching theorem.
description: 22 pages, 7 figures. Extended version, to appear in Proceedings of the 2018 Abel Symposium. Significant edits since last version to improve exposition. Added illustrations of algebraic stability and induced matchings
Diagnóstico y evaluación de la gestión financiera de la empresa Coomeva E.P.S. del año 2008 al 2010
Creators: name: Reyes Badillo, Luz Amparo
name: Arias Rey, Yenny Marcela
Publisher: name: Universidad de Cartagena
Year: 2012
Subjects: Análisis

description: Tesis (Especialista en Finanzas) – Universidad de Cartagena. Facultad de ciencias económicas. Especialización en finanzas, 2012
description: COOMEVA, Entidad Promotora de Salud (E.P.S.) es una cooperativa de profesionales y sus familias, asociadas para satisfacer las necesidades comunes mediante la producción de bienes y servicios en el campo de la salud. COOMEVA E.P.S. es una de las empresas más reconocidas del sector salud, teniendo como participación en la ciudad de Cartagena un 37.1%1 de la totalidad del mercado a Diciembre 31 de 2010. Actualmente, los continuos cambios en normatividades tales como el Acuerdo 008 de Diciembre de 2.009 de la Comisión de Regulación en Salud CRES, por el cual se aclaran y actualizan integralmente los Planes Obligatorios de Salud de los regímenes Contributivo y Subsidiado, han generado un ambiente de incertidumbre y tensión en el sector salud Colombiano. En este acuerdo se aprobó un nuevo plan de beneficios con aplicación a partir de Enero de 2010, en el que se incluyeron nuevas coberturas al POS. Así mismo, se aprobó el Acuerdo 009 de Diciembre de 2.009 de la Comisión de Regulación en Salud, Bogotá Colombia: por el cual se fijó el aumento en el valor de la Unidad de Pago por Capitación (U.P.C.) prima que se traslada a las EPS para pagar los costos del Plan de Beneficios para los regímenes Contributivo y Subsidiado para el año 2.010.
title: Zur Entwicklung flexibler Rechenkompetenzen bei Grundschulkindern
title: Ergebnisse einer empirischen Untersuchung
titleType: AlternativeTitle
Creators: name: Rathgeb-Schnierer, Elisabeth
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2007
Subjects: subject: 510

description: Wie entwickeln Grundschulkinder ihre Rechenwege auf der Basis offener Lernangebote von ersten individuellen Vorgehensweisen bis zu einem flexibleren Rechnen? Dieser Frage wurde im Rahmen einer Untersuchung nachgegangen, die sich über den Zeitraum eines Schuljahres in der Klassenstufe 2 erstreckte. Sie beinhaltete sowohl Unterrichtsaktivitäten zum gesamten Bereich des additiven Rechnens als auch Interviews, die sich auf Subtraktionsaufgaben im Zahlenraum bis 100 bezogen. Zur Datenanalyse wurden ausschließlich die Interviews herangezogen, deren qualitative Auswertung Einblicke in Lernbiographien, die Beschreibung verschiedener Varianten im Lösungsverhalten sowie die Generierung von Deutungshypothesen zur Rechenwegsentwicklung ermöglichten.
An Assessment Of Project Risk Management Practices Of Education Projects In Ethiopian Higher Educations
Creators: name: Geneti, Wondimalem
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The main purpose of the study was to explore challenges and opportunities in using continuous assessment in EFL classes at tertiary level. The participants of the study were 14 EFL instructors and 112 first year students in the College of Social Sciences and Humanities at Ambo University. Data were gathered through questionnaires, interview and document analysis. The data that were gathered through closed-ended questions were analyzed quantitatively while that of open-ended questions, interview and document analysis were analyzed qualitatively. The study revealed that the participants of the study, EFL instructors and students, believed that they have got benefits from the implementation of continuous assessment in EFL classes. It also showed that the EFL instructors have not been implementing continuous assessment in adequate way. They have used a limited number of continuous assessment devices and they have not provided appropriate feedback to students. Besides, the study revealed that the implementation of continuous assessment in EFL classes has helped the EFL instructors in identifying slow and fast learners. However, appropriate remedial works and additional stimulation activities have not been given for slow students and fast students. It was also found out in the study that when the EFL instructors score the assessment work of students, they depend on the pre-set criteria and they have a record book for students' assessment activities. However, the record book they use is the same with the traditional assessment record book. The study also indicated that EFL instructors and students face challenges that hinder them from implementing continuous assessment effectively. The challenges they face are basically moderate challenges. The measures that have been taken by EFL instructors and students to overcome the challenges are not satisfactory. Based on the findings recommendations have also been forwarded.
La idea de autonomia y de democracia en Cornelius Castoriadis
Creators: name: Pardo Rivera, Erika
Publisher: name: Universidad de Cartagena
Year: 2020
Subjects: Democracia - Filosofía
Política - Autonomía
Castoriadis, Cornelius, 1922 - 1997 - Crítica e interpretación

description: Tesis (Filósofo) -- Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Filosofía, 2020
description: En la presente reflexión vamos a desarrollar en primer lugar, las consideraciones sobre heteronomía y autonomía presentes en la obra de Castoriadis, en segundo lugar, nos ocuparemos de la política en relación con la antropología, la democracia, la autonomía, y en tercera instancia abordaremos el estudio del capitalismo contemporáneo en relación con la autonomía, la política y la democracia. Tendremos en cuenta el papel preponderante del capitalismo en su apogeo y desenvolvimiento, teniendo presente las consecuencias que este trae a nivel social, filosófico y ambiental, en este tercer aspecto estableceremos como propuesta el rescate del individuo mediante la política y la paideia.
Comparison of the Depth Accuracy of a Plenoptic Camera and a Stereo Camera System in Spatially Tracking Single Refuse-derived Fuel Particles in a Drop Shaft
Creators: name: Zhang, Miao
name: Streier, Robin
name: Vogelbacher, Markus
name: Wirtz, Siegmar
name: Scherer, Viktor
name: Matthes, Jörg
Publisher: name: IFSA Publishing, S.L.
Year: 2023
Subjects: 3D Measurement
Plenoptic camera
Stereo camera system
Particle tracking-by-detection
Comparison of 3Dsensors

description: With the development of depth cameras in the last decades, several cameras are able to acquire 3D information of the captured scenes, such as plenoptic camera and stereo camera system. Because of the differences in principle and construction of various depth cameras, different cameras own particular advantages and disadvantages. Therefore, a comprehensive and detailed comparison of different cameras is essential to select the right camera for the application. Our research compared the depth accuracy and stability of a stereo camera system and a plenoptic camera by monitoring the settling processes of various refuse-derived fuel particles in a drop shaft. The particles are detected at first using detection approaches, and the particle detections are subsequently associated in accordance with data association algorithms. The spatial particle trajectories are obtained by the tracking-by-detection approach, based on which the performances of the cameras are evaluated.
Evaluación de la calidad y rendimientos de la cera obtenida por extracción a partir de los residuos de molienda de la caña de azúcar
Creators: name: Martínez Barraza, Pablo
name: Kelsey Ortíz, Salomón
Publisher: name: Universidad de Cartagena
Year: 1975
Subjects: Azúcares - Extracción y purificación
Azúcares - Evaluación
Azúcares - Producción

description: Tesis (Químico Farmacéutico) -- Universidad de Cartagena. Facultad de Ciencias Farmacéutica, 1975
description: Dentro de esta investigación, se busca efectuar un estudio de la Cera como materia prima en muchos productos comerciales, para aprovechar los residuo de la molienda de caña de azúcar para la obtención de cera.