cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fortalecimiento de las competencias ciudadanas a través de la implementación de una propuesta pedagógica centrada en el uso de un blog colaborativo en los estudiantes de sexto grado en la Institución Educativa Loperena en la ciudad de Valledupar, Cesar
Creators: name: David Bedoya, Sandra Milena
Publisher: name: Universidad de Cartagena
Year: 2021
Subjects: subject: Tecnología educativa
subject: Innovaciones educativas
subject: Educación cívica
subject: Valores sociales - Enseñanza

description: En los últimos años tanto a nivel nacional como internacional se ha evidenciado una creciente preocupación por los resultados sobre el desempeño de las competencias ciudadanas, lo cual ha permitido que se ahonden esfuerzos para lograr que cada gobierno desde sus respectivos ministerios de educación puedan tomar medidas que permitan el respeto de los derechos humanos y el responsable ejercicio de la ciudadanía, con todas las implicaciones que esto acarrea, conscientes de la importancia del desarrollo del der humano en sociedad y de la trascendencias de las decisiones individuales que repercuten en la sociedad en general. El ser humano, vive en sociedad y necesita de sus semejantes para su completo desarrollo, es aquí donde el fortalecimiento de las competencias ciudadanas cobra una gran importancia y se hace necesario trabajar mancomunadamente con la familia y con diferentes áreas académicas para lograr los resultados propuestos, pues la ausencia de las competencias ciudadanas o el desempeño insuficiente de éstas afecta todos los aspectos del hombre. Siendo conscientes de esta realidad, se diseñaron cuatro secuencias didácticas con actividades en inglés, aplicando diferentes herramientas tecnológicas y centradas en el blog educativo, para fortalecer las competencias ciudadanas en los estudiantes del grado sexto de la Institución Educativa Loperena, en la ciudad de Valledupar, Cesar. Los resultados obtenidos, fueron realmente satisfactorios, ya que se logró el alcance de los objetivos propuestos, además de mejorar habilidades tecnológicas, nivel de inglés, convivencia armónica y conciencia colectiva.
Defect resonances of truncated crystal structures
Creators: name: Lu, Jianfeng
name: Marzuola, Jeremy L.
name: Watson, Alexander B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Defects in the atomic structure of crystalline materials may spawn electronic bound states, known as \emph{defect states}, which decay rapidly away from the defect. Simplified models of defect states typically assume the defect is surrounded on all sides by an infinite perfectly crystalline material. In reality the surrounding structure must be finite, and in certain contexts the structure can be small enough that edge effects are significant. In this work we investigate these edge effects and prove the following result. Suppose that a one-dimensional infinite crystalline material hosting a positive energy defect state is truncated a distance $M$ from the defect. Then, for sufficiently large $M$, there exists a resonance \emph{exponentially close} (in $M$) to the bound state eigenvalue. It follows that the truncated structure hosts a metastable state with an exponentially long lifetime. Our methods allow both the resonance frequency and associated resonant state to be computed to all orders in $e^{-M}$. We expect this result to be of particular interest in the context of photonic crystals, where defect states are used for wave-guiding and structures are relatively small. Finally, under a mild additional assumption we prove that if the defect state has negative energy then the truncated structure hosts a bound state with exponentially-close energy.
description: 33 pages, a few small typos fixed
Physiological mechanisms underlying fish distributions along elevational gradients: estimating fundamental thermal niches
Creators: name: Allen-Ankins, Slade
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Ecology, Environment and Evolution, School of Life Sciences, College of Science, Health and Engineering, La Trobe University, Bundoora.

There is much concern about how climate change will affect the thermal regimes of freshwater ecosystems and, by extension, the performance of ectothermic animals within those systems. The aim of this PhD thesis was to improve our understanding of the thermal niches of two congeneric species of fish distributed along elevational gradients: the river blackfish (Gadopsis marmoratus), and two-spined blackfish (G. bispinosus). By studying the thermal niches of these two species, this thesis aimed to 1) determine whether the distributions of the blackfish are constrained by their thermal physiology, and 2) determine how changes in thermal regimes predicted by climate change will impact these two species. The distribution of the two species, and associated temperature regimes suggest they have different realized thermal niches, with G. bispinosus occupying cooler habitats than G. marmoratus. Despite this, there were only small differences in their thermal niche when defined by aerobic swimming performance, aerobic scope, growth rate and thermal tolerance. Predictions of how increasing temperatures due to climate change may impact these two species were made based on temperature-dependent growth models and upper thermal limits (UTL). The impact of increasing temperatures on growth rates were highly seasonally specific, with strong decreases predicted for summer. These reductions in growth will occur during the recruitment season, which may result in blackfish distribution contracting to higher elevations. Additionally, climate change is likely to cause maximum temperatures to frequently exceed blackfish UTLs across large parts of their distribution. This thesis demonstrates that modelling the thermal niches of ectotherms distributed along the river continuum is not straightforward. If we are to effectively and efficiently forecast impacts of different thermal futures, riverine ecologists must do more to experimentally decipher the relative influence of temperature and other abiotic drivers on the fitness of riverine ectotherms.

This thesis was a recipient of the Nancy Millis Award for theses of exceptional merit.
title: Pain and functional impairment in children with chronic regional pain syndrome compared to generalized chronic pain at presentation and 12-month-follow-up
Creators: name: Jäger, Nathalie
name: Hügle, Boris
name: Wollesen, Elisabeth
name: Schnöbel-Müller, Elisabeth
name: Offenbächer, Martin
name: Haas, Johannes Peter
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Introduction: Chronic regional pain syndromes (CRPS) are rare in childhood. Their impact on quality of life and physical functioning has been described, but not yet compared to generalized chronic pain syndromes. The objective of this study was to determine if pediatric patients with CRPS differ [for full text, please go to the a.m. URL]
description: 43. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh); 29. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh); 25. wissenschaftliche Jahrestagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Forces and torques on rigid inclusions in an elastic environment: resulting matrix-mediated interactions, displacements, and rotations
Creators: name: Puljiz, Mate
name: Menzel, Andreas M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Embedding rigid inclusions into elastic matrix materials is a procedure of high practical relevance, for instance for the fabrication of elastic composite materials. We theoretically analyze the following situation. Rigid spherical inclusions are enclosed by a homogeneous elastic medium under stick boundary conditions. Forces and torques are directly imposed from outside onto the inclusions, or are externally induced between them. The inclusions respond to these forces and torques by translations and rotations against the surrounding elastic matrix. This leads to elastic matrix deformations, and in turn results in mutual long-ranged matrix-mediated interactions between the inclusions. Adapting a well-known approach from low-Reynolds-number hydrodynamics, we explicitly calculate the displacements and rotations of the inclusions from the externally imposed or induced forces and torques. Analytical expressions are presented as a function of the inclusion configuration in terms of displaceability and rotateability matrices. The role of the elastic environment is implicitly included in these relations. That is, the resulting expressions allow a calculation of the induced displacements and rotations directly from the inclusion configuration, without having to explicitly determine the deformations of the elastic environment. In contrast to the hydrodynamic case, compressibility of the surrounding medium is readily taken into account. We present the complete derivation based on the underlying equations of linear elasticity theory. In the future, the method will, for example, be helpful to characterize the behavior of externally tunable elastic composite materials, to accelerate numerical approaches, as well as to improve the quantitative interpretation of microrheological results.
description: 24 pages, 9 figures
Biologically Plausible Learning of Text Representation with Spiking Neural Networks
Creators: name: Białas, Marcin
name: Mirończuk, Marcin Michał
name: Mańdziuk, Jacek
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: This study proposes a novel biologically plausible mechanism for generating low-dimensional spike-based text representation. First, we demonstrate how to transform documents into series of spikes spike trains which are subsequently used as input in the training process of a spiking neural network (SNN). The network is composed of biologically plausible elements, and trained according to the unsupervised Hebbian learning rule, Spike-Timing-Dependent Plasticity (STDP). After training, the SNN can be used to generate low-dimensional spike-based text representation suitable for text/document classification. Empirical results demonstrate that the generated text representation may be effectively used in text classification leading to an accuracy of $80.19\%$ on the bydate version of the 20 newsgroups data set, which is a leading result amongst approaches that rely on low-dimensional text representations.
description: This article was originally submitted for Parallel Problem Solving from Nature conference and will be available in Springer Lecture Notes in Computer Science (LNCS)
Análisis del sentido de pertenencia de los estudiantes del Programa de Administración de Empresas (N) de la Universidad de Cartagena
Creators: name: Franco Simancas, Henry
name: Paternina Escalante, Linda Esperanza
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Clima organizacional
Sentido de pertenencia
Cultura Organizacional

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 2016
description: El presente trabajo tiene como objetivo analizar los factores que facilitan el desarrollo de la identidad del estudiante hacia la carrera de Administración de empresas (N) de la Universidad de Cartagena. Y describir como la oferta curricular y las estrategias de enseñanzas dinámicas y retadoras del programa, inciden sobre el desempeño del estudiantado y facilitan su identidad con la carrera y la institución.
Hybrid stars are compatible with recent astrophysical observations
Creators: name: Kumar, Anil
name: Thapa, Vivek Baruah
name: Sinha, Monika
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Compact stars (CS) are stellar remnants of massive stars. Inside CSs the density is so high that matter is in subatomic form composed of nucleons. With increase of density of matter towards the centre of the objects other degrees of freedom like hyperons, heavier non-strange baryons, meson condensates may appear. Not only that at higher densities, the nucleons may get decomposed into quarks and form deconfined strange quark matter (SQM). If it is so then CSs may contain SQM in the core surrounded by nucleonic matter forming hybrid stars (HSs). However, the nature and composition of matter inside CSs can only be inferred from the astrophysical observations of these CSs. Recent astrophysical observations in terms of CS mass-radius (M-R) relation and gravitational wave (GW) observation indicate that the matter should be soft in the intermediate density range and stiff enough at higher density range to attain the maximum possible mass above $2~M_\odot$ which is not compatible with pure hadronic equation of states (EOSs). Consequently, we study the HS properties with different models of SQM and find that within vector bag model considering density dependent bag parameter, the model goes well with the astrophysical observations so far.
description: 12 pages, 9 figures; Accepted for publication in Phys. Rev. D
On Certain Generalizations of $\mathcal{S}^*(ψ)$
Creators: name: Kumar, S. Sivaprasad
name: Gangania, Kamaljeet
Publisher: name: arXiv
Year: 2020
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We deal with different kinds of generalizations of $\mathcal{S}^*(ψ)$, the class of Ma-Minda starlike functions, in addition to a majorization result of $\mathcal{C}(ψ),$ the class of Ma-Minda convex functions, which are enlisted as follows: 1. Let $h$ be an analytic function, $f$ be in $\mathcal{C}(ψ)$ and $h$ be majorized by $f$ in the unit disk $\mathbb{D},$ then for a given $ψ,$ we derive a general equation, which yields the radius constant $r_ψ$ such that $|h'(z)|\leq |f'(z)|$ in $|z|\leq r_ψ$. Consequently, obtain results associating $\mathcal{S}^*(ψ)$ and others. 2. We find the largest radius $r_0$ so that the product function $g(z)h(z)/z$ belongs to a desired class for $|z|
description: All the results under the Majorization section have been proved to be sharp in this version
title: Auswirkungen einer musikpädagogischen Intervention auf das Singstimmprofil bei Kindern im Grundschulalter
Creators: name: Pieper, Lennart
name: Körner, Mike
name: Wiedemann, Matthias
name: Wagner, Franziska
name: Fuchs, Michael
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund Das Sprech- und Singstimmprofil ist auch bei Kindern essentieller Bestandteil einer multimodalen Stimmdiagnostik. Neben der Frage nach alters- und geschlechtsspezifischen Normwertbereichen, die bereits anhand der Ergebnisse des ersten Untersuchungsabschnitts dieser Studie im vergangenen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 32. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Phoniatrie und Pädaudiologie (DGPP)
Correlation of Fe-based Superconductivity and Electron-Phonon Coupling in an FeAs/Oxide Heterostructure
Creators: name: Choi, Seokhwan
name: Johnston, Steven
name: Jang, Won-Jun
name: Koepernik, Klaus
name: Nakatsukasa, Ken
name: Ok, Jong Mok
name: Lee, Hyun-Jung
name: Choi, Hyun Woo
name: Lee, Alex Taekyung
name: Akbari, Alireza
name: Semertzidis, Yannis K.
name: Bang, Yunkyu
name: Kim, Jun Sung
name: Lee, Jhinhwan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Interfacial phonons between iron-based superconductors (FeSCs) and perovskite substrates have received considerable attention due to the possibility of enhancing preexisting superconductivity. Using scanning tunneling spectroscopy, we studied the correlation between superconductivity and e-ph interaction with interfacial-phonons in an iron-based superconductor Sr$_2$VO$_3$FeAs ($T_c \approx$ 33 K) made of alternating FeSC and oxide layers. The quasiparticle interference measurement over regions with systematically different average superconducting gaps due to the e-ph coupling locally modulated by O vacancies in VO$_2$ layer, and supporting self-consistent momentum-dependent Eliashberg calculations provide a unique real-space evidence of the forward-scattering interfacial phonon contribution to the total superconducting pairing.
description: 46 pages, 22 figures
Paths counting on simple graphs: from escape to localization
Creators: name: Nechaev, S. K.
name: Tamm, M. V.
name: Valba, O. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the asymptotic behavior of the number of paths of length $N$ on several classes of infinite graphs with a single special vertex. This vertex can work as an entropic trap for the path, i.e. under certain conditions the dominant part of long paths become localized in the vicinity of the special point instead of spreading to infinity. We study the conditions for such localization on decorated star graphs, regular trees and regular hyperbolic graphs as a function of the functionality of the special vertex. In all cases the localization occurs for large enough functionality. The particular value of transition point depends on the large-scale topology of the graph. The emergence of localization is supported by the analysis of the spectra of the adjacency matrices of corresponding finite graphs.
description: 13 pages, 6 figures
Imputation procedures in surveys using nonparametric and machine learning methods: an empirical comparison
Creators: name: Dagdoug, Mehdi
name: Goga, Camelia
name: Haziza, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: Nonparametric and machine learning methods are flexible methods for obtaining accurate predictions. Nowadays, data sets with a large number of predictors and complex structures are fairly common. In the presence of item nonresponse, nonparametric and machine learning procedures may thus provide a useful alternative to traditional imputation procedures for deriving a set of imputed values. In this paper, we conduct an extensive empirical investigation that compares a number of imputation procedures in terms of bias and efficiency in a wide variety of settings, including high-dimensional data sets. The results suggest that a number of machine learning procedures perform very well in terms of bias and efficiency.
A survey of dual active galactic nuclei in simulations of galaxy mergers: frequency and properties
Creators: name: Capelo, Pedro R.
name: Dotti, Massimo
name: Volonteri, Marta
name: Mayer, Lucio
name: Bellovary, Jillian M.
name: Shen, Sijing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the simultaneous triggering of active galactic nuclei (AGN) in merging galaxies, using a large suite of high-resolution hydrodynamical simulations. We compute dual-AGN observability time-scales using bolometric, X-ray, and Eddington-ratio thresholds, confirming that dual activity from supermassive black holes (BHs) is generally higher at late pericentric passages, before a merger remnant has formed, especially at high luminosities. For typical minor and major mergers, dual activity lasts ~20-70 and ~100-160 Myr, respectively. We also explore the effects of X-ray obscuration from gas, finding that the dual-AGN time decreases at most by a factor of ~2, and of contamination from star formation. Using projected separations and velocity differences rather than three-dimensional quantities can decrease the dual-AGN time-scales by up to ~4, and we apply filters which mimic current observational-resolution limitations. In agreement with observations, we find that, for a sample of major and minor mergers hosting at least one AGN, the fraction harbouring dual AGN is ~20-30 and ~1-10 per cent, respectively. We quantify the effects of merger mass ratio (0.1 to 1), geometry (coplanar, prograde, retrograde, and inclined), disc gas fraction, and BH properties, finding that the mass ratio is the most important factor, with the difference between minor and major mergers varying between factors of a few to orders of magnitude, depending on the luminosity and filter used. We also find that a shallow imaging survey will require very high angular resolution, whereas a deep imaging survey will be less resolution-dependent.
description: Accepted for publication in MNRAS; added online-only material
Delta de co2: marcador de hipoperfusión tisular en el paciente crítico
Creators: name: Luna Martínez, Darwin Rafael
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: subject: Cuidados intensivos cardíacos
subject: Anestesiología
subject: Cuidados intensivos
subject: Hipoxia cerebral

description: La hipoperfusión es una entidad común en los pacientes en estado crítico, que suele preceder al choque clínico, con una alta tasa de morbimortalidad. Los marcadores de hipoperfusión más utilizado en la práctica clínica son el lactato sérico (LS), la saturación venosa de oxígeno (SvO2) y el déficit de base (DB). Sin embargo, algunos estudios sugieren que el uso de la Diferencia Veno-arterial de pCo2 o delta de CO2 (DCO2) puede ser un buen indicador para determinar el estado de hipoperfusión tisular. Objetivos: Determinar la correlación entre el DCO2 y el LS, la SvO2 y el DB y su utilidad como marcador de hipoperfusión tisular. Métodos: Estudio observacional analítico prospectivo donde se evaluaron los pacientes hospitalizados en la Unidad de Cuidados Intensivos de la Clínica Gestión Salud en Cartagena de Indias, entre junio de 2015 y Mayo de 2016. A los pacientes que cumplieron con los criterios de inclusión se le tomaron muestras de gases arteriales y venosos seriadas en tres ocasiones(T0: basal; T1: 6 horas; T2: 12 horas), determinándose los valores de lactato sérico, SvO2, el DB y DCO2. Resultados: En el periodo de estudio ingresaron 352 pacientes a la UCI de Gestión Salud, de estos solo 70 pacientes cumplieron los criterios de selección. Los diagnósticos de ingreso fueron sepsis, falla cardiaca y ACV. La mediana de LS fue 1,70 mmol/L, 1,85mmol/L y 1,70 mmol/L en T0, T1 y T2, respectivamente. La prevalencia de hipoperfusión tisular por criterio de LS fue de 42,2%, 46,5% y 31,0% en cada tiempo. El DB mostró una mediana basal de -3,80 mEq/L, -2,0 mEq/L y -2 mEq/ y la prevalencia de hipoperfusión de 46%, 34% y 32% en T0, T1 y T2 respectivamente. La mediana de SvO2 fue de 74,7% en T0, 75% y 78,0% en T1 y T2, con una frecuencia de hipoperfusión de 32,4% y 22,5% respectivamente; las medianas de DCO2 en los tiempos de medición fueron 6 mmHg, 5 mmHg y 5 mmHg. El análisis de correlación por Rho de Spearman entre los niveles de DCO2 y lactato mostró una relación lineal positiva en T0 (Rho=0,482 IC 95% 0,280 a 0,643; p≤ 0,0001) y T2 (Rho=0,505 IC 95% 0,308 a 0,660; p≤ 0,0001). Hubo una asociación lineal negativa entre el DCO2 comparado con DB y SvO2. El análisis por curva ROC de DCO2 para diagnóstico de hipoperfusión tisular tomando como patron de oro los niveles de lactato mostró una sensibilidad entre 72,7% y 93,3%, una especificidad entre 68,3% y 83,3% para un punto de corte de > 5 mmHg, con áreas bajo la curva que oscilan de 0,766 a 0,847, (p=0,0001). Conclusiones: Este estudio demostró una asociación lineal positiva entre el DCO2 y el LS. Sin embargo, son necesarios estudios que evalúen la relación entre el DCO2 y eventos clínicos relevantes dentro de la evolución de los pacientes en estado crítico antes de recomendar su uso como un marcador pronóstico confiable dentro de este grupo de pacientes.
Climate Adaptation in Rain-fed Agriculture: Analyzing the Determinants of Supplemental Irrigation Practices in Nepal
Creators: name: Joshi, Ganesh Raj
name: Bhandari, Ramchandra
name: Joshi, Ganesh Raj
name: Bhandari, Ramchandra
Publisher: name: Unknown
Year: 2022
Subjects: subject: Environmental Economics and Policy
subject: Agriculture
subject: Adaptation
subject: Climate
subject: Supplemental irrigation
subject: Perceptions
subject: Nepal

description: Climate change has severely impacted the rain-fed agricultural production system which is dominant in Nepal. This situation demands implementable strategies like supplemental irrigation for mitigating adverse impacts. In spite of the importance of supplemental irrigation, it is not adopted on a wider scale. Hence, this paper aims to assess perceptions of climate change and identify factors that influence the adoption of supplemental irrigation practices. Climate change impact survey data for Province No. 1 (one of the seven provinces in Nepal) with a sample of 800 households were analyzed by using the probit regression model. The results showed that the majority of the farmers perceived increasing temperature and decreasing precipitation, resulting in climate-induced disasters such as drought. Similarly, only about 27% of the households have adopted supplemental irrigation practices. The significant factors influencing the adoption of supplemental irrigation practices were the household head’s number of years of farming experience and education level, distance to motorable roads, operational size of landholding, membership in community-based organizations, and the perception of changes in summer temperature. Considering the empirical results, it is necessary to undertake research on sustainable practices and develop support measures for scaling up this practice as the adoption of this practice is very low in Province No. 1. The policy and strategy should also emphasize enhancing the capacity of farmers in technical and managerial aspects of supplemental irrigation practices, raising awareness about climate change and its impact, and strengthening community-based organizations for sharing and exchanging knowledge and skills. In addition, creating additional employment opportunities to enhance the income of the farmers for mitigating the capital constraint and increasing investment in infrastructures like roads for improving physical access thereby promoting adoption.
title: Test/Retest-Reliabilität bei der Untersuchung der Epitheldicke der Stimmlippen mittels optischer Kohärenztomografie (OCT)
Creators: name: Jungheim, Michael
name: Donner, Sabine
name: Bleeker, Sebastian
name: Ripken, Tammo
name: Krüger, Alexander
name: Ptok, Martin
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund Die Inhalation von Kochsalzlösung wird bei Erkrankungen der Atemwege häufig zu therapeutischen Zwecken angewendet, allerdings ist wenig über die Effekte und Wirkungsweise dieser Therapieform bekannt. Insbesondere wurden die Einflüsse auf das Stimmlippenepithel bisher[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 32. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Phoniatrie und Pädaudiologie (DGPP)
Conformal dimension of hyperbolic groups that split over elementary subgroups
Creators: name: Carrasco, Matias
name: Mackay, John M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Metric Geometry (math.MG)
subject: Classical Analysis and ODEs (math.CA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F67, 30L10, 51F99

description: We study the (Ahlfors regular) conformal dimension of the boundary at infinity of Gromov hyperbolic groups which split over elementary subgroups. If such a group is not virtually free, we show that the conformal dimension is equal to the maximal value of the conformal dimension of the vertex groups, or 1, whichever is greater, and we characterise when the conformal dimension is attained. As a consequence, we are able to characterise which Gromov hyperbolic groups (without $2$-torsion) have conformal dimension 1, answering a question of Bonk and Kleiner.
description: v1: 47 pages, 6 figures; v2: 48 pages, 6 figures, minor changes to introduction
Chemical Pulping of Oxytenanthera abyssinica Bamboo
Creators: name: Tolessa, Amsalu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Bamboo is a fast growing non-wood plant with long and thin fibers. Therefore, it has potential as a raw material for pulping and papermaking. Oxytenanthera abyssinica bamboo samples were harvested, sorted, dried and milled using Wiley Mill and sieved with 250μm mesh for chemical analysis. In this work, the chemical composition of Oxytenanthera abyssinica bam-boo, the effect of soda-AQ pulping conditions on pulp yield and kappa number and also the mechanical properties of paper made from lowland bamboo (Oxytenanthera abyssinica) was evaluated. Oxytenanthera abyssinica bamboo chemical composition contains higher cellulose content (52.06%) and pulp yield which make bamboo a preferred raw material for pulping. The bamboo chips were pulped using digester pulping unit with 15, 20 and 25% varying alkali charge; 60, 120 and 180 min cooking times and 150, 175 and 200oC cooking temperature. The maximum pulp yield and minimum kappa number obtained was 52.24% and 12.16 respectively were achieved under the optimum conditions; at the active alkali of (20%), cooking temperature of 150oC and the cooking time of 180 min with high value of combined desirability, i.e. 0.98. The bamboo pulp was then made into 60 g/m2 laboratory scale papers and their mechanical properties were assessed. The results revealed that tensile index, bursting index, and tearing index were 33.58 Nm/g, 1.303kPa.m2/g, and 11.5mN.m2 /g respectively. This study indicates that comparable moderate strength mechanical properties of paper can be produced from Oxytenanthera abyssinica bamboo pulp with more environmentally friendly pulping process. Finally, it can be concluded that Oxytenanthera abyssinica bamboo has a great potential for substitution of imported pulp in paper and paper products processing industry.
The role of glucose transporter 12 in glucose homeostasis and insulin sensitivity
Creators: name: Hoang, Vy Tuong
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Biochemistry and Genetics, College of Science, Health and Engineering, La Trobe University, Bundoora.
title: Auswirkungen einer Hörbehinderung auf die psychische Verfassung Betroffener
Creators: name: Tretbar, Kathleen
name: Fuchs, Michael
name: Meuret, Sylvia
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund Eine Hör- und folglich auch Kommunikationsbehinderung wirkt sich auf alle Lebensbereiche und somit auch auf die psychische Gesundheit des Betroffenen aus. Bei Menschen zwischen 20 und 64 Jahren hat ein Hörverlust besonders negative Auswirkungen auf die Ausprägung von Depressionen,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 32. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Phoniatrie und Pädaudiologie (DGPP)
Proceso de evaluación participativa, del programa de mejoramiento de vivienda de la fundación granitos de paz, desde la perspectiva de sus actores y actoras, sector Rafael Núñez, barrio Olaya Herrera, Cartagena de indias 2010- 2011
Creators: name: Cárdenas Alvear, Yohana Margarita
name: Quitian Vela, Olga Yaneth
Publisher: name: Universidad de Cartagena
Year: 2011
Subjects: Trabajo social de grupo

description: Tesis (Trabajador Social) -- Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Programa de Trabajo Social, 2011
description: Las estrategias del mejoramiento de vivienda atienden precisamente esa carencia cualitativa. La vivienda es reconocida como el entorno mas inmediato de desenvolvimiento del individuo, la familia y el grupo social, el que más decisivamente contribuye a formar al ciudadano, física, social y psíquicamente, el espacio habitable que más directamente permite el libre juego de las acciones humanas y en el que puede construir una equilibrada convivencia con la naturaleza. Desde trabajo social surgió la necesidad de realizar un proceso de evaluación participativa del proyecto de vivienda de la Fundación Granitos de Paz, donde se tuvo como actores principales sus beneficiarios, pero también a los administrativos y colaboradores y de esta manera se hizo un análisis de la situación actual de las familias que participan del proyecto, se tomaron medidas para continuar con un proyecto que ha sido piloto en esta comunidad.
Caracterización del empresario profesional de la ciudad de Cartagena D.T.C.
Creators: name: Guzmán Medina, Esnaire
name: Pizarro Escobar, Mayra
Publisher: name: Universidad de Cartagena
Year: 1998
Subjects: Empresarios
Liderazgo
Emprendedores

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 1998
description: El presente estudio tiene por objeto identificar las características que definen a los empresarios profesionales de la ciudad de Cartagena, para establecer el perfil empresarial de los mismos.
The role of global economic policy uncertainty in predicting crude oil futures volatility: Evidence from a two-factor GARCH-MIDAS model
Creators: name: Dai, Peng-Fei
name: Xiong, Xiong
name: Zhou, Wei-Xing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: This paper aims to examine whether the global economic policy uncertainty (GEPU) and uncertainty changes have different impacts on crude oil futures volatility. We establish single-factor and two-factor models under the GARCH-MIDAS framework to investigate the predictive power of GEPU and GEPU changes excluding and including realized volatility. The findings show that the models with rolling-window specification perform better than those with fixed-span specification. For single-factor models, the GEPU index and its changes, as well as realized volatility, are consistent effective factors in predicting the volatility of crude oil futures. Specially, GEPU changes have stronger predictive power than the GEPU index. For two-factor models, GEPU is not an effective forecast factor for the volatility of WTI crude oil futures or Brent crude oil futures. The two-factor model with GEPU changes contains more information and exhibits stronger forecasting ability for crude oil futures market volatility than the single-factor models. The GEPU changes are indeed the main source of long-term volatility of the crude oil futures.
description: 19 pages, 16 figures
Curving Flat Space-Time by Deformation Quantization?
Creators: name: Much, Albert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a deformed differential structure to obtain a curved metric by a deformation quantization of the flat space-time. In particular, by setting the deformation parameters to be equal to physical constants we obtain the Friedmann-Robertson-Walker (FRW) model for inflation and a deformed version of the FRW space-time. By calculating classical Einstein-equations for the extended space-time we obtain non-trivial solutions. Moreover, in this framework we obtain the Moyal-Weyl, i.e. a constant non-commutative space-time, by a consistency condition.
A Cardioid Domain and Starlike Functions
Creators: name: Kumar, S. Sivaprasad
name: Gangania, Kamaljeet
Publisher: name: arXiv
Year: 2020
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We introduce and study a class of starlike functions defined by \begin{equation*} \mathscr{S}^*_\wp:=\left\{f\in\mathcal{A}: \frac{zf'(z)}{f(z)}\prec 1+ze^z=:\wp(z)\right\}, \end{equation*} where $\wp$ maps the unit disk onto a cardioid domain. We find the radius of convexity of $\wp(z)$ and establish the inclusion relations between the class $ \mathscr{S}^*_\wp$ and some well-known classes. Further we derive sharp radius constants and coefficient related results for the class $ \mathscr{S}^*_\wp$.
Selection of Clay Adsorbents and Determination of The Optimum Condition for Defluoridation of Ground Water in Rift Valley Region
Creators: name: Hassen, Ahmedin
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2007

description: People in several regions of the Rift Valley of Ethiopia are suffering from skeletal and non-skeletal fluorosis as result of consuming water containing excessive fluoride. Defluoridation of drinking water using variety of material has been suggested by different researchers. This study assesses the fluoride adsorption characteristics of clays collected from different areas in Ethiopia. Bombawoha clay, Combolcha clay and Muger clay 2 were found to have the better potential as fluoride adsorbents. The effect of contact time, amount of adsorbent dose, pH, particle size, heat treatment of adsorbent and initial concentration of fluoride was investigated. The adsorption was rapid during the first one hour. The adsorption efficiency of fluoride was increased with adsorbent dosage. The defluoridation capacity was appreciable with in acidic pH range. Clay adsorbents treated in the range between 400 to 600oC gave better fluoride removal. The fluoride adsorption efficiency depends directly with initial fluoride concentration. The adsorption data were well fitted to the Langmuir isotherm model with adsorption capacity of 0.136, 0.168, and 0.191 for Bombawoha clay, Combolcha clay and Muger clay 2 respectively. Laboratory scale column were conducted and showed good removal of fluoride. At breakthrough the three clay samples Bombawoha clay, Combolcha clay and Muger clay 2 showed 0.1248, 0.235, 0.239 mg/g of adsorption capacity, 1.64, 1.1, 1.02 mg/L of residual fluoride and 300, 500, 500 mL of breakthrough volume respectively.
title: Zusammenhang zwischen Sprechstimmumfangsprofil und soziodemographischen Faktoren und Rauchen
Creators: name: Berg, Martin
name: Engel, Christoph
name: Berger, Thomas
name: Fuchs, Michael
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund Der Zusammenhang zwischen soziodemographischen und Lebensstil-Faktoren und der Sprechstimme ist bislang kaum in größeren populationsbasierten Studien untersucht worden. In der bisherigen Literatur wird davon ausgegangen, dass die weibliche Stimme ca. eine Oktave über der[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 32. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Phoniatrie und Pädaudiologie (DGPP)
Extinction by the long dielectric needles
Creators: name: Cherkas, Sergey L.
name: Cherkas, Nadejda L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Electromagnetic wave extinction by the very long but finite dielectric needle is compared with that by the infinite dielectric cylinder for an oblique incidence of the electromagnetic wave. It is shown that the renormalized Hankel functions without the logarithmic terms should be used for the calculation of the extinction per unit length of the infinite dielectric cylinder to apply it for extinction calculations by the finite dielectric cylinder.
description: 12 pages, Mathematica notbooks associated with this article can be found, at http://dx.doi.org/10.1016/j.ijleo.2017.04.040
Cattle Marketing System in Bena-Tsemay District of South Omo, South-Western Ethiopia
Creators: name: Adane, Zelalem
name: Hidosa, Denbela
name: Adane, Zelalem
name: Hidosa, Denbela
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agricultural Finance
subject: Cattle
subject: Cattle marketing
subject: Production systems
subject: Market channel
subject: Marketing prices

description: The absence of information on cattle marketing systems is a major challenge for cattle producers and policymakers in Ethiopia. Therefore, this study was conducted in the Bena-Tsemay district with the aim of assessing the cattle marketing system. The household survey involved the interviewing of 150 households of eight Kebeles, which were purposefully selected from the three cattle production systems. The qualitative parameters, such as cattle market infrastructures, cattle transportation facilities, cattle market information, cattle marketing channels, cattle market actors, and the extent of extension service in the cattle marketing system, were analyzed using non-parametric methods, while the means of the quantitative parameters, such as cattle price and a number of cattle supplies, were analyzed using a one-way ANOVA of SPSS, version 20. The results revealed that the majority (73.2%) of the cattle keepers in three production systems sold their cattle; while very few (24.8%) did not. Approximately 58.33% of respondents said they bought and sold cattle at the local market using eyeball estimation, while only 12.2% used a bartering system. The majority of cattle keepers (69.30%) have access to cattle market information, while a few of them (30.7%) do not have access to cattle market information. The prices of selling and purchasing cattle were determined via peaceful negotiations between cattle sellers and traders (66.7%), while a small percentage (33.3%) was determined only by the cattle seller’s decision. The lack of cattle market and transportation facilities, the lack of cattle market price promotion centers, the lack of credit services, and the lack of capacity buildings were the major cattle marketing constraints. Thus, based on the results, the authors concluded that capacity-building and development efforts should be designed for cattle market transport facilities, legal cattle market promotion centers, credit services, and cattle feeding and health improvement strategies.
Biophysical characterization of histidine-rich glycoprotein
Creators: name: Priebatsch, Kristin Mark
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Biochemistry and Genetics, School of Molecular Sciences, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria.

Thesis with publications.
Factores asociados a Diabetes Mellitus Gestacional en población gestante de la ciudad de Cartagena en el periodo 2013-2016
Creators: name: Pinto Espinosa, Andy David
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Complicaciones del embarazo
Diabetes Mellitus Gestacional
Enfermedades cardiovasculares

description: Tesis (Especialista en Ginecología y Obstetricia). -- Universidad de Cartagena. Facultad de Medicina. Departamento de Ginecología y Obstetricia, 2016
description: El presente trabajo de investigación se fundamenta en identificar factores asociado a DMG en una población obstétrica de Cartagena de Indias. La Diabetes Mellitus Gestacional (DGM) es una de las complicaciones más frecuentes durante el embarazo y representa un problema de salud pública.
Radial profile of heavy quarks in jets in high-energy nuclear collisions
Creators: name: Wang, Sa
name: Dai, Wei
name: Zhang, Ben-Wei
name: Wang, Enke
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In high energy nuclear collisions, heavy flavor tagged jets are useful hard probes to study the properties of the quark-gluon plasma (QGP). In this talk, we present the first theoretical prediction of the $D^0$ meson radial distributions in jets relative to the jet axis both in p+p and Pb+Pb collisions at $5.02$ TeV, it shows a nice agreement with the available experimental data. The in-medium jet evolution in the study is described by a Monte Carlo transport model which has been incorporated with the initial events as input provided by the next-to-leading order (NLO) plus parton shower (PS) event generator SHERPA. In such evolution process, both elastic and inelastic parton energy loss in the hot and dense medium are taken into account. Within this same simulation framework, we predict different modification patterns of the radial profile of charm and bottom quarks in jets in Pb+Pb collisions: jet quenching effect will lead the charm quarks diffuse to lager radius while lead the bottom quarks distributed closer to jet axis.
description: 4 pages, 4 figures, Parallel talk presented at Hard Probes 2020
Simple weak modules for the fixed point subalgebra of the Heisenberg vertex operator algebra of rank $1$ by an automorphism of order $2$ and Whittaker vectors
Creators: name: Tanabe, Kenichiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B69

description: Let $M(1)$ be the vertex operator algebra with the Virasoro element $ω$ associated to the Heisenberg algebra of rank $1$ and let $M(1)^{+}$ be the subalgebra of $M(1)$ consisting of the fixed points of an automorphism of $M(1)$ of order $2$. We classify the simple weak $M(1)^{+}$-modules with a non-zero element $w$ such that for some integer $s\geq 2$, $ω_i w\in{\mathbb C}w$ ($i=\lfloor s/2\rfloor+1,\lfloor s/2\rfloor+2,\ldots,s-1$), $ω_{s}w\in{\mathbb C}^{\times}w$, and $ω_i w=0$ for all $i>s$. The result says that any such simple weak $M(1)^{+}$-module is isomorphic to some simple weak $M(1)$-module or to some $θ$-twisted simple weak $M(1)$-module.
description: 20 pages; typos corrected
Evaluación del aprendizaje en entornos virtuales y remotos
Creators: name: García-Peñalvo, F. J.
Publisher: name: Zenodo
Year: 2020
Subjects: Evaluación online; Docencia online; Transformación digital; COVID-19

description: El webinar “Evaluación del aprendizaje en entornos virtuales y remotos” se impartió el día 23 de junio de 2020 de forma online en el II Ciclo de Capacitaciones por una calidad educativa de nuestro país, organizado por la Dirección distrital de educación de Warnes (Bolivia). Sesión del webinar accesible en: https://bit.ly/2YV8XPu