cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplementary information for 'Forest health in the Anthropocene: the emergence of a novel tree disease is associated with poplar cultivation'
Creators: name: Feau, Nicolas
name: Dhillon, Braham D.
name: Sakalidis, Monique
name: Dale, Angela L.
name: Søndreli, Kelsey L.
name: Goodwin, Stephen B.
name: LeBoldus, Jared M.
name: Hamelin, Richard C.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Plant Biology
subject: 60408 Genomics

description: Plant domestication and movement are large contributors to the success of new diseases. The introduction of new host species can result in accelerated evolutionary changes in pathogens, affecting long-established coevolutionary dynamics. This has been observed in poplars where severe epidemics of pathogens that were innocuous in their natural pathosystems occurred following host domestication. The North American fungus Sphaerulina musiva is responsible for endemic leaf spots on Populus deltoides. We show that the expansion of poplar cultivation resulted in the emergence of a new lineage of this pathogen that causes stem infections on a new host, P. balsamifera. This suggests a host shift since this is not a known host. Genome analysis of this emerging lineage reveals a mosaic pattern with islands of diversity separated by fixed genome regions, which is consistent with a homoploid hybridization event between two individuals that produced a hybrid swarm. Genome regions of extreme divergence and low diversity are enriched in genes involved in host–pathogen interactions. The specialization of this emerging lineage to a new host and its clonal propagation represents a serious threat to poplars and could affect both natural and planted forests. This work provides a clear example of the changes created by the intensification of tree cultivation that facilitate the emergence of specialized pathogens, jeopardizing the natural equilibrium between hosts and pathogens.This article is part of the theme issue ‘Infectious disease ecology and evolution in a changing world’.
Oligothiophene-Based Phosphonates for Surface Modification of Ultraflat Transparent Conductive Oxides
Creators: name: Timpel, Melanie
name: Nardi, Marco Vittorio
name: Wegner, Berthold
name: Ligorio, Giovanni
name: Pasquali, Luca
name: Hildebrandt, Jana
name: Pätzel, Michael
name: Hecht, Stefan
name: Ohta, Hiromichi
name: Koch, Norbert
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Indium‐tin oxide
subject: phosphonic acid
subject: photoelectron spectroscopy
subject: self‐assembled monolayer
subject: zinc oxide
subject: 540 Chemie und zugeordnete Wissenschaften
subject: 600 Technik, Technologie

description: The self‐assembly of electroactive organic molecules on transparent conductive oxides is a versatile strategy to engineer the interfacial energy‐level alignment and to enhance charge carrier injection in optoelectronic devices. Via chemical grafting of an aromatic oligothiophene molecule by changing the position of the phosphonic acid anchoring group with respect to the organic moiety (terminal and internal), the direction of the main molecular dipole is changed, i.e., from parallel to perpendicular to the substrate, to study the molecular arrangement and electronic properties at the organic–inorganic interface. It is found that the observed work function increase cannot solely be predicted based on the calculated molecular dipole moment of the oligothiophene‐based phosphonates. In addition, charge transfer from the substrate to the molecule has to be taken into account. Molecular assembly and induced electronic changes are analogous for both indium‐tin oxide (ITO) and zinc oxide (ZnO), demonstrating the generality of the approach and highlighting the direct correlation between molecular coverage and electronic effects.
Analysis of the grainyhead-like genes in mammalian development and disease
Creators: name: Cangkrama, Michael
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: This thesis describes research undertaken by Mr Michael Cangkrama, a PhD student at Monash University (Central Clinical School, Department of Medicine), investigating the unique and cooperative roles of the Grainyhead-like (Grhl) transcription factor family in mammalian epidermal development. Previous studies have defined critical roles of the three family members, Grhl1, -2 and -3 in embryonic epidermal morphogenis, in the context of skin development, wound repair, barrier formation and epidermal morphogenesis. Each of these transcription factors has distinct functions, which are presumably mediated through activation (or repression) of specific target genes. In the studies reported here, we have employed a variety of experimental approaches, including genetics, phylogenetic conservation, gene expression profiling, DNA-protein complex binding assays and other biochemical studies to identify key GRHL target genes for epidermal development and homeostasis in the adult. These studies are anticipated to have impact on human conditions in which barrier function is compromised, such as infant prematurity and atopic dermatitis, and will provide a scaffold for the development of therapeutic interventions for these disorders.
Distributed Saddle-Point Problems Under Similarity
Creators: name: Beznosikov, Aleksandr
name: Scutari, Gesualdo
name: Rogozin, Alexander
name: Gasnikov, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We study solution methods for (strongly-)convex-(strongly)-concave Saddle-Point Problems (SPPs) over networks of two type - master/workers (thus centralized) architectures and meshed (thus decentralized) networks. The local functions at each node are assumed to be similar, due to statistical data similarity or otherwise. We establish lower complexity bounds for a fairly general class of algorithms solving the SPP. We show that a given suboptimality $ε>0$ is achieved over master/workers networks in $Ω\big(Δ\cdot δ/μ\cdot \log (1/\varepsilon)\big)$ rounds of communications, where $δ>0$ measures the degree of similarity of the local functions, $μ$ is their strong convexity constant, and $Δ$ is the diameter of the network. The lower communication complexity bound over meshed networks reads $Ω\big(1/{\sqrtρ} \cdot δ/μ\cdot\log (1/\varepsilon)\big)$, where $ρ$ is the (normalized) eigengap of the gossip matrix used for the communication between neighbouring nodes. We then propose algorithms matching the lower bounds over either types of networks (up to log-factors). We assess the effectiveness of the proposed algorithms on a robust logistic regression problem.
description: Appears in: Advances in Neural Information Processing Systems 34 (NeurIPS 2021). Minor modifications with respect to the NeurIPS version. 35 pages, 3 algorithms, 4 figures, 1 table
"La peritación como medio de prueba"
Creators: name: Betancourt Bustillo, Victor
Publisher: name: Universidad de Cartagena
Year: 1974
Subjects: Prueba (Derecho penal) - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1974
description: Por medio de la peritación se aportan, transmiten al proceso, nociones técnicas y objetivos de prueba que para su percepción y adquisición, se requieren conocimientos especiales y capacidades técnicas.
The Effect of Employee's Perception towards the Performance Appraisal on their Job Satisfaction: the Case of Ethiopian Electric Utility
Creators: name: Asfaw, Meaza
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The purpose of this research was to investigate the effect of employee's perception towards the Performance Appraisal on their job satisfaction in the Ethiopian Electric Utility. To achieve this target a quantitative research approach was adopted. Descriptive and explanatory research designs were employed to perform the analysis. To get the relevant data survey questionnaire was developed and distributed to 160 employees of EEU located at the head office. The data collected from the questionnaire were analyzed using statistical measures such as correlation and multiple regression analysis. The major findings of the study show that there are drawbacks in the performance appraisal practice of EEU. The appraisal results were not used to reward employees for their accomplishment; employees have also low job satisfaction level. There exist positive and significant relationship between job satisfaction and the communication, goal setting, feedback, evaluation process, performance based reward and recognition, and employee's performance improvement variable. The finding also revealed that there exist higher relationships between the performance based reward and recognition dimension and job satisfaction. Finally the study recommends EEU to improve its performance appraisal practice and to enhance employee's job satisfaction by rewarding their achievement. EEU should implement the performance appraisal properly by which employee's job satisfaction will be increased. Based on the performance result highly performing employees should be rewarded and recognized. It is also recommended that the communications, feedback, goal setting, evaluation process, and employee's performance improvement aspects of the performance appraisal has to be improved. This research can be used by HR managers to improve their performance appraisal; through it they can increase the satisfaction level of their employees
A Priori Estimation Of Memory Effects In Coarse-Grained Nonlinear Systems Using The Mori-Zwanzig Formalism
Creators: name: Gouasmi, Ayoub
name: Parish, Eric
name: Duraisamy, Karthik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Reduced Order Models (ROMs) of complex, nonlinear dynamical systems often require closure, which is the process of representing the contribution of the unresolved physics on the resolved physics. The Mori-Zwanzig (M-Z) procedure allows one to write down formally closed evolution equations for the resolved physics. In these equations, the unclosed terms are recast as a memory integral involving the past history of the resolved variables, and a "noise" term. While the M-Z procedure does not directly reduce the complexity of the original system, these equations can serve as a mathematically consistent starting point to develop closures based on approximations of the memory. In this scenario, a priori knowledge of the memory kernel, which is not explicitly known for nonlinear systems, is of paramount importance to assess the validity of a memory approximation. Unraveling the memory kernel requires the determination of the orthogonal dynamics which is a projected high-dimensional partial differential equation that is not tractable in general. A method to estimate the memory kernel a priori, using full-order solution snapshots, is proposed. The main idea is to solve a pseudo orthogonal dynamics equation, that has a convenient Liouville form, instead of the original one. This ersatz arises from the assumption that the semi-group of the orthogonal dynamics operator is a composition operator, akin to semi-groups of Liouville operators, for one observable. The method is exact in the linear case where the kernel is known explicitly. Results for under-resolved simulations of the Burgers and Kuramoto-Sivashinsky equations demonstrate that the proposed technique can accurately reconstruct the transfer of information between the resolved and unresolved dynamics through memory, and provide valuable information about the kernel.
description: Revised submission
title: In Patients with Rheumatoid Arthritis and an Inadequate Response to Methotrexate, Does Body Mass Index Influence the Efficacy of Abatacept on Inflammation When Measured by Power Doppler Ultrasonography? Results from the APPRAISE Study
Creators: name: D’Agostino, Maria Antonietta
name: Le Bars, Manuela
name: Taylor, M.
name: Chou, B.
name: Zhu, J.
name: Ranganath, V. K.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Introduction: BMI affects clinical outcomes in patients with RA treated with anti-TNFs [ref:1]. Efficacy of abatacept (ABA) does not seem to be impacted by weight; baseline weight was not identified as a predictive factor of efficacy (DAS28 [CRP] <2.6) in a post hoc analysis[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)
Functional analysis of the TRIM-NHL family protein, NHL-2, in the germline of Caenorhabditis elegans
Creators: name: Davis, Gregory Mark
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: TRIM-NHL family proteins are highly conserved and regulate various cellular processes by functioning as co-factors of the micro RNA pathway (miRNA), or as E3 ubiquitin ligases. A member of this family, NHL-2, has previously been shown to function as a miRNA co-factor in the somatic tissues of Caenorhabditis elegans. Additionally, NHL-2 is highly expressed in germ cells, although its function in this tissue is unknown. Therefore, this study used a combination of genome-wide RNAi screening, deep-sequencing and proteomics to explore the role of NHL-2 and its contribution to germline function. Genome-wide RNAi screening identified 42 genes that gave strong synthetic phenotypes when knocked down in nhl-2 null mutants. This included members of the WAGO and CSR-1 small 22G RNA pathways, including drh-3, ekl-1 and cde-1. Knockdown of these genes in nhl-2 null mutants leads to abnormal chromosomal morphology, reduced brood size and highly penetrant embryonic lethality. In addition to this, nhl-2 is required for the downregulation of WAGO-1 22G RNA targets and deep-sequencing of nhl-2 null mutants shows decreased levels of CSR-1 and WAGO-1 small 22G RNAs. Levels of miRNAs and 21U RNAs appear unchanged in nhl-2 null mutants, suggesting that nhl-2 is specifically required for 22G RNA biogenesis or stability. Furthermore, NHL-2 associates with CSR-1 as well as the ubiquitin machinery, but absence of nhl-2 does not alter CSR-1 levels, suggesting that this interaction is not associated with CSR-1 turnover. Collectively, this study suggests that NHL-2 maintains germline function by functioning as a co-factor of the WAGO and CSR-1 small RNA pathways.
The Effectiveness of Incarceration-Based Drug Treatment on Criminal Behavior: A Systematic Review
Creators: name: Mitchell, Ojmarrh
name: Wilson, David B.
name: MacKenzie, Doris L.
Publisher: name: Universität Tübingen
Year: 2012
Subjects: subject: Haft , Drogenabhängigkeit , Drogentherapie
subject: 360
subject: Incarceration
subject: Drug-Treatment
subject: Review

description: Many, if not most, incarcerated offenders have substance abuse problems. Without effective treatment, these substance-abusing offenders are likely to persist in non-drug offending. The period of incarceration offers an opportunity to intervene in the cycle of drug abuse and crime. Although many types of incarceration-based drug treatment programs are available (e.g., therapeutic communities and group counseling), the effectiveness of these programs is unclear. The objective of this research synthesis is to systematically review quasi-experimental and experimental (RCT) evaluations of the effectiveness of incarceration-based drug treatment programs in reducing post-release recidivism and drug relapse. A secondary objective of this synthesis is to examine variation in effectiveness by programmatic, sample, and methodological features. In this update of the original 2006 review (see Mitchell, Wilson, and MacKenzie, 2006), studies made available since the original review were included in an effort to keep current with emerging research. This synthesis of evaluations of incarceration-based drug treatment programs found that such programs are modestly effective in reducing recidivism. These findings most strongly support the effectiveness of therapeutic communities, as these programs produced relatively consistent reductions in recidivism and drug use. Both counseling and incarceration-based narcotic maintenance programs had mixed effects. Counseling programs were associated with reductions in recidivism but not drug use; whereas, incarceration-based narcotic maintenance programs were associated with reductions in drug use but not recidivism. Note that our findings regarding the effectiveness of incarceration-based narcotic maintenance programs differ from a larger review of community-based narcotic maintenance programs (see Egli, Pina, Christensen, Aebi, and Killias, 2009). Finally, boot camp programs for drug offenders had negligible effects on both recidivism and drug use.
Caracterización de los estándares contables para pymes colombianas en el ámbito internacional
Creators: name: Giraldo Montoya, Luz Mery
name: Rangel Puello, Laura Lucía
Publisher: name: Universidad de Cartagena
Year: 2011
Subjects: Estados financieros
Normas internacionales de contabilidad
Pequeñas empresas

description: Tesis(Contador Público).-Universidad de Cartagena. Facultad de Ciencias Económicas.Programa de Contaduría Publica,2011
description: Hoy, en una economía globalizada, se impone una cultura de estandarización, debido a múltiples variables que empujan a las empresas a la adopción de las Normas Internacionales de Contabilidad (NIC). La globalización, los movimientos de integración y la complejidad de las operaciones de las empresas, han incrementado la demanda de información y en consecuencia los requerimientos cada vez más universales. Las pequeñas y medianas empresas como motores del desarrollo económico de un país deben adoptar una estructura de normatividad contable internacional, que les permita un mantenimiento de capital operativo o físico y que además apunte a consolidar su estructura, crecimiento y expansión; sin embargo dentro de este proceso se debe tener en cuenta que éstas, presentan unas necesidades específicas en cuanto a información contable , debido a características propias que las identifican y diferencian de otro nivel empresarial, por esto se hace necesario que se desarrolle un modelo contable internacional, que se ajuste a las particularidades de la información que manejan.Este trabajo de grado es presentado para definir características de las normas contables internacionales aplicadas a pequeñas y medianas empresas del sector servicios de la ciudad de Cartagena , tomando como razón la adopción de normas internacionales de contabilidad como un proceso de aplicación mundial que lleva consigo la globalización de la profesión contable.
Nurturing collaborative relationships and attending to self-care: a study of strategies used by Victorian school principals
Creators: name: Lyngcoln, Jamie Adam
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in fulfilment of the requirements for the degree of Masters of Education to the School of Education, College of Arts, Social Sciences and Commerce, School of Education, La Trobe University, Bundoora, Victoria.
Practices and Challenges of Employee Relations in Commercial Bank of Ethiopia
Creators: name: Asha, Amanuel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This research work is designed to assess practices and challenges of employee relations of Commercial Bank of Ethiopia (CBE). It is assumed to provide the objectives of identifying the current practices and challenges of employee relations in order to create awareness among employees about employee relations as well as to look at gaps concerning communication gap, knowledge gap and fairness among employees in Commercial Bank of Ethiopia. The following questions were raised and addressed: what are the current practices and challenges of Commercial Bank of Ethiopia and major challenges that hinders effective relationship among employees, how much the management and employees understand the employee relations to the objectives of the bank. Descriptive research design was used to obtain precise and pertinent information based on current status. So, the researcher selected descriptive research design the most appropriate. Due to the nature of the research, it is useful to capture the best of both qualitative and quantitative approaches. Therefore, the mixed approach was used and the most appropriate for this study. In order to determine the sample size out of the total population of 1318 three of the sampling technics were used such as simple random sampling, stratified sampling and systematic random sampling technics in order to get the sample size of 172. To gather information for the study, both interviews and questionnaires with close ended as well as document analysis were used. On the basis of the data analysis, the majority of the respondents expressed their agreement on the practices of employee relations such as team work, trust and confidence, relationship between management and employees and communication between management and employees. Whereas, the majority of the respondents expressed their disagreement concerning fairness and adequate knowledge among employees as a major challenge in CBE
title: Differenzierte Analyse des Öffnungs- und Schließungsverhalten von Stimmlippenschwingungen
Creators: name: Lohscheller, Jörg
name: Schick, Bernhard
name: Unger, Jakob
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund Die Hochgeschwindigkeits-(HG)-Laryngoskopie erlaubt durch ihre hohe zeitliche Auflösung das präzise Erfassen des zeitabhängigen Schwingungsmusters der Stimmlippendynamik. In Studien konnte gezeigt werden, dass sich basierend auf Phonovibrogrammen (PVG) [ref:1][zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 32. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Phoniatrie und Pädaudiologie (DGPP)
Robust Macroscopic Matter-Wave Interferometry with Solids
Creators: name: Pedernales, Julen S.
name: Plenio, Martin B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Matter-wave interferometry with solids is highly susceptible to minute fluctuations of environmental fields, including gravitational effects from distant sources. Hence, experiments require a degree of shielding that is extraordinarily challenging to achieve in realistic terrestrial or even space-based set-ups. Here, we design protocols that exploit the spatial correlations that are inherent in perturbations due to distant sources to reduce significantly their impact on the visibility of interference patterns. We show that interference patterns that are robust to such type of noise can be encoded in the joint probability distribution of two or more interferometers, provided that these are initialized in suitable states. We develop a general framework that makes use of N+1 interferometers that may differ in their masses to correct for environmental potential fields up to order N in their multipole expansion. Remarkably, our approach works for fields that fluctuate stochastically in any time scale and does not require the presence of quantum correlations among the different interferometers. Finally, we also show that the same ideas can be extended to the protection of entanglement between pairs of interferometers.
description: 9 pages, 3 figures
title: Der internationale Status von Neugeborenen- und Säuglingshörscreening-Programmen und der Prävalenzen kindlicher Hörstörungen
Creators: name: Neumann, Katrin
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund Entsprechend Schätzungen der Weltgesundheitsorganisation (WHO) von 2011 hat sich die Zahl der Menschen, die an einer versorgungsbedürftigen Hörstörung leiden, von 42 Millionen im Jahr 1985 auf 360 Millionen im Jahr 2011 erhöht. Darunter befinden sich 7,5 Millionen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 32. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Phoniatrie und Pädaudiologie (DGPP)
Predicted Realization of Cubic Dirac Fermion in Quasi-One-Dimensional Transition-Metal MonoChalcogenides
Creators: name: Liu, Qihang
name: Zunger, Alex
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that the previously predicted Fermion particle that has no analogue in the standard model of particle theory - the cubically dispersed Dirac semimetal (CDSM) - is realized in a specific, stable solid state system that has been made years ago, but was not appreciated to host such a unique Fermion, composed of six Weyl Fermions, 3 with left-handed and 3 with right-handed chirality. We identified the crystal symmetry constraints and found the space group P63/m as one of the two that can support a CDSM, of which the characteristic band crossing has linear dispersion along the principle axis but cubic dispersion in the plane perpendicular to it. We then conducted a material search using density functional theory identifying a group of quasi-one-dimensional molybdenum mono-chalcogenide compounds A(MoX)3 (A = Na, K, Rb, In, Tl, X = S, Se, Te) as ideal CDSM candidates. Studying the stability of the A(MoX)3 family reveals a few candidates such as Rb(MoTe)3 and Tl(MoTe)3 that are predicted to be resilient to Peierls distortion, thus retaining the metallic character. The combination of one-dimensionality and metallic nature in this family provides a platform for unusual optical signature - polarization dependent metallic vs insulating response.
description: 33 pages, 7 figures
La empresa y la sustitución de patrones
Creators: name: Negrette Carrascal, Jesús María
Publisher: name: Universidad de Cartagena
Year: 1987
Subjects: Empresa - Recurso humano
Patrones y empleados

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1987
description: Causas de la sustitución de patrones, los efectos que genera para que los trabajadores conozcan sus verdaderos derechos, los cuales son infranqueables al momento en el que se produce el mencionado fenómeno jurídico.
title: Welche Patienten mit deutlicher Synovitis im Ultraschall-B-Mode haben Dopplersignale, und was sagt eine fehlende Doppleraktivität aus?
Creators: name: Albrecht, Katinka
name: Callhoff, Johanna
name: Ohrndorf, Sarah
name: Zink, Angela
name: Backhaus, Marina
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Es gibt immer wieder Patienten mit einer Früharthritis, die deutliche klinische und laborchemische Krankheitsaktivität und eine sonographisch nachweisbare Synovitis im B-Mode haben, aber keine Dopplersignale innerhalb der Synovia aufweisen. Fragestellung: Wie unterscheiden sich[zum vollständigen Text gelangen Sie über die oben angegebene 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)
Diseño de un modelo de control interno para la corporación de derecho privado Club Cartagena
Creators: name: Nieto Causil, Anderson
name: Bustillo Lamadrid, Ana Marcela
Publisher: name: Universidad de Cartagena
Year: 2012
Subjects: Control interno
Auditoría
Control interno - Club Cartagena - Diseño

description: Tesis (Contador Público).--Universidad de Cartagena. Facultad de Ciencias Económicas. programa de Contaduría Pública, 2012
description: Esta monografía tiene el objeto de diseñar una propuesta de control interno que permita evaluar y optimizar la gestión administrativa, brindando elementos o recursos importantes para hacer seguimiento a las operaciones y asegurando que se fortalezca la adherencia a las normas fijadas por la administración. Además, se busca minimizar los riesgos operacionales, contables y administrativos dentro de las competencias de autorregulación y autocontrol.
Asymptotic expansions for the truncation error in Ramanujan-type series
Creators: name: Milla, Lorenz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 26D15, 33C20

description: Many of the fastest known algorithms to compute $π$ involve generalized hypergeometric series, such as the Ramanujan-Sato series. In this paper, we investigate the rates of convergence for several such series and we give asymptotic expansions for the error of finite approximation. For example, when using the first $n$ terms of the Chudnovskys' series, we obtain the finite approximation $π_n\approx π$. It is known that the truncation error satisfies $|π_n-π|\approx 53360^{-3n}.$ In this paper, we prove that the asymptotic expansion for the truncation error in the Chudnovskys' series is $$\left|π_n-π\right|=53360^{-3n}\cdot\frac{{106720}\sqrt{{10005}π}}{{1672209}\sqrt{n}}\cdot\exp\left(\frac{A_1}{n}+\frac{A_2}{n^2}+\frac{δ_n}{n^3}\right),$$ with ${0.006907}<δ_n<{0.008429}$ and the exact rational values of $A_1$ and $A_2$: $$A_1= -\frac{1781843197433}{7456754505816},$$ $$A_2= -\frac{1080096011925710088395}{3475199235000451148614116}.$$ Thus we demonstrate how to establish precise error bounds for the approximations for $π$ obtained through Ramanujan-like series for $1/π$. We also give asymptotic expansions for all known rational hypergeometric series for $1/π$ in the appendix.
description: 12 pages, 2 figures (to appear in the Ramanujan Journal); this preprint contains additional 12 pages in the appendix
Uniqueness of the Fock quantization of Dirac fields in 2+1 dimensions
Creators: name: Cortez, Jerónimo
name: Navascués, Beatriz Elizaga
name: Martín-Benito, Mercedes
name: Marugán, Guillermo A. Mena
name: Velhinho, José M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the Fock quantization of a free Dirac field in 2+1-dimensional backgrounds which are conformally ultrastatic, with a time-dependent conformal factor. As it is typical for field theories, there is an infinite ambiguity in the Fock representation of the canonical anticommutation relations. Different choices may lead to unitarily inequivalent theories that describe different physics. To remove this ambiguity one usually requires that the vacuum be invariant under the unitary transformations that implement the symmetries of the equations of motion. However, in non-stationary backgrounds, where time translation is not a symmetry transformation, the requirement of vacuum invariance is in general not enough to fix completely the Fock representation. We show that this problem is overcome in the considered scenario by demanding, in addition, a unitarily implementable quantum dynamics. The combined imposition of these conditions selects a unique family of equivalent Fock representations. Moreover, one also obtains an essentially unique splitting of the time variation of the Dirac field into an explicit dependence on the background scale factor and a quantum evolution of the corresponding creation and annihilation operators.
description: 24 pages. Document replaced to match published version
The peeling theorem with arbitrary cosmological constant
Creators: name: Fernández-Álvarez, Francisco
name: Senovilla, José M. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A method for deriving the asymptotic behaviour of any physical field is presented. This leads to a geometrically meaningful derivation of the peeling properties for arbitrary values of the cosmological constant. Application to the outstanding case of the physical Weyl tensor provides the explicit form of all terms that determine its asymptotic behaviour along arbitrary lightlike geodesics. The results follow under the assumption of a conformal completion à la Penrose. The only freedom available is the choice of a null vector at the conformal boundary of the space-time (which determines the lightlike geodesic arriving there).
description: 10 pages, 1 figure
title: Krankheitsmerkmale und -verlauf der Enthesitis-assoziierten Arthritis im ersten Jahr kinderrheumatologischen Versorgung – Ergebnisse einer Kohortenstudie
Creators: name: Minden, Kirsten
name: Niewerth, Martina
name: Liedmann, Ina
name: Hospach, Anton
name: Foeldvari, Ivan
name: Weller-Heinemann, Frank
name: Klotsche, Jens
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Enthesitis-assoziierte Arthritis (EAA) ist die dritthäufigste Form der juvenilen idiopathischen Arthritis (JIA). Sie umfasst verschiedene Formen der Spondylarthritis und unterscheidet sich von anderen JIA-Kategorien im klinischen Phänotyp, genetischen Hintergrund und Krankheitsverlauf.[zum vollständigen Text gelangen Sie über die oben angegebene 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)
Estudio de factibilidad para el montaje de una clínica medica de servicios generales en el barrio Alto Bosque de la ciudad de Cartagena
Creators: name: Ocho Ochoa, Gustavo
name: Bertel Bertel, Humberto
Publisher: name: Universidad de Cartagena
Year: 1984
Subjects: Estudio de mercado
Localización
Clinica medica de servicios generales - Barrio Alto Bosque - Cartagena, Bolívar - Estudio de factibilidad

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1984
description: El objetivo de este estudio es recoger la información básica necesaria para evaluar la factibilidad económica y social del montaje de una clínica médica de servicios generales que permita tomar a futuros inversionistas una decisión clara con el menor riesgo posible.
Generalized Thom spectra and their topological Hochschild homology
Creators: name: Basu, Samik
name: Sagave, Steffen
name: Schlichtkrull, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55N20, 55P43

description: We develop a theory of R-module Thom spectra for a commutative symmetric ring spectrum R and we analyze their multiplicative properties. As an interesting source of examples, we show that R-algebra Thom spectra associated to the special unitary groups can be described in terms of quotient constructions on R. We apply the general theory to obtain a description of the R-based topological Hochschild homology associated to an R-algebra Thom spectrum.
description: v2: 38 pages, minor revision. Accepted for publication in J. Inst. Math. Jussieu
Effect of Performance Appraisal Quality on Employee Performance (The Case of Ethiopian Airlines)
Creators: name: Bekele, Tekeba
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The main purpose of this study was to evaluate the effect of performance appraisal quality on employee performance in case of Ethiopian airlines. Explanatory research design was used. As a result to analyze this relationship the researcher mainly deployed quantitative type of research design. 200 respondents were selected representing a population of 2180 using stratified random sampling in each stratum (Business units). Self-Administer Drop off survey data collection technique was used and Statistical Package for Social Science (SPSS) software version 20.0 was employed to analyze and present the data through the statistical tools, namely descriptive and inferential analysis. The study found that 88.1% of the changes in the employee performance variables could be attributed to the combined effect of performance appraisal quality predictor variables. In general this research revealed that high quality performance appraisal had likely to generate higher level of employee performance, as the individual staff will have trust on the system, clarity about the system, believe on its fairness and good communication in the process. On the contrary a low quality performance appraisal may result in a lower level of employee performance. Keywords: Performance Appraisal, Quality, Performance of Employee
Studies of phase transitions in mixed single bilayer phospholipid biomimetic membranes by nano-viscosimetry
Creators: name: Hasan, Imad Younus
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 School of Molecular Sciences, College of Science, Health and Engineering, La Trobe University, Bundoora.

Thesis with publications.
title: Trends in der medikamentösen Therapie und im gesundheitlichen Befinden von Patienten mit hereditären periodischen Fiebersyndromen (HPF) in den letzten 10 Jahren
Creators: name: Niewerth, Martina
name: Kallinich, Tilmann
name: Hospach, Anton
name: Thon, Angelika
name: Berendes, Rainer
name: Minden, Kirsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Patienten mit HPF leiden unter verschiedenen Beschwerden, u.a. Fieber, Schmerzen und chronische Müdigkeit. Über das Ausmaß krankheitsbedingter Belastungen im Alltag und deren Veränderungen in den vergangenen 10 Jahren ist bisher wenig bekannt. Methoden: Daten von Patienten[zum vollständigen Text gelangen Sie über die oben angegebene 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)
Concentraciones de cadmio y plomo en mango hilaza (Mangifera indica L) del municipio de San Marcos, Sucre
Creators: name: Castellar Torres, José Yessid
name: Contreras Torres, Brayan Eduardo
Publisher: name: Universidad de Cartagena
Year: 2015
Subjects: Mango hilaza (Mangifera indica L);
Frutas
Mango hilaza - Valor nutricional;

description: Tesis (Ingeniero de Alimentos).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería de Alimentos, 2015
description: El presente estudio tiene por objeto,evaluar las concentraciones de cadmio y plomo en Mango Hilaza (Mangifera indica L) del municipio de San Marcos, Sucre.
Comment on "Quasi-One-Dimensional Metal-Insulator Transitions in Compound Semiconductor Surfaces"
Creators: name: Kim, Sun-Woo
name: Kang, Yoon-Gu
name: Kim, Hyun-Jung
name: Cho, Jun-Hyung
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a recent Letter, Zhao et al. [1] reported the origin of quasi-one-dimensional metal-insulator (MI) transitions in compound semiconductor surfaces. Based on a density-functional theory (DFT) calculation within the generalized gradient approximation (GGA), they claimed that one-atom-wide metallic structures formed by a selective bonding of H or Li atoms to GaN(10-10) and ZnO(10-10) undergo the Peierls-type MI transitions, leading to a charge-density-wave (CDW) formation with periodic lattice distortion. However, we here demonstrate that such a CDW phase is due to the artifact of the GGA, while the antiferromagnetic (AFM) ground state is predicted by the hybrid DFT calculation and the exact-exchange plus correlation in the random-phase approximation (EX + cRPA). [1] J. Z. Zhao, W. Fan, M. J. Verstraete, Z. Zanolli, J. Fan, X. B. Yang, H. Xu, and S. Y. Tong, Phys. Rev. Lett. 117, 116101 (2016).
Estandarización de técnicas experimentales para la evaluación de la actividad eosinofílica en respuesta a Ascaris spp
Creators: name: Varela Coneo, Eskarly
Publisher: name: Universidad de Cartagena
Year: 2021
Subjects: Leucocitos - Hematología
Hematología
Parasitología humana
Áscaris lumbricoides - Parásito

description: Tesis (Magíster en Inmunología). -- Universidad de Cartagena, Instituto de Investigaciones Inmunológicas, 202
description: Las infecciones por helmintos se consideran un problema de salud pública a nivel mundial, dado que, aunque estos organismos casi nunca generan mortalidad, los índices de morbilidad son bastante elevados, generando grandes costos en los sistemas de salud, sobre todo en poblaciones endémicas, gracias a su capacidad para manipular y suprimir el sistema inmune del hospedero y generar infecciones crónicas. Durante varios años, el Instituto de Investigaciones Inmunológicas, ha venido estudiando la relación inmunológica entre las células del sistema inmune y los nematodos endémicos de la región caribe colombiana, dadas las bajas condiciones socioeconómicas y sanitarias en diversas poblaciones. Teniendo como base la hipótesis de que los eosinófilos son claves en la respuesta frente a la infección por helmintos y tomando como base de estudio los resultados encontrados en poblaciones rurales cercanas a Cartagena de indias, hemos querido identificar herramientas para estudiar si el eosinófilo es capaz de atacar directamente al nematodo Ascaris spp en estado larvario y los eventos de activación que ocurren en la célula al exponerse a ellas o a través del reconocimiento de sus productos secretados. Para esto, se estandarizó la técnica de incubación de huevos de Ascaris suum para obtener larvas en estadio L3. Se evaluó la técnica de purificación magnética de eosinófilos humanos a partir de sangre periférica (“Eosinophil Isolation Kit human” #130-092-010, Miltenyi Biotech, Alemania), obteniéndose eosinófilos purificados por citometría de flujo y microscopio óptico con un 60% de pureza. Se estudió la actividad larvicida in vitro de los eosinófilos purificados frente a Áscaris spp y sus antígenos representativos, encontrándose que los eosinófilos de sangre periférica humanos, en presencia de anticuerpos IgE, incubados con larvas L3 de Ascaris suum, fueron capaces de adherirse masivamente a las paredes de la larva, pero no se obtuvieron resultados concluyentes sobre la viabilidad de las larvas. Adicionalmente, se observó liberación de proteína citotóxica peroxidasa del eosinófilo (EPO) en presencia del recombinante rABA-1 y de suero de pacientes con IgE a este antígeno. Se evaluó una estrategia de medición de activación de eosinófilos basada en el anticuerpo monoclonal CD69, encontrándose una mayor expresión de CD69 en presencia de ABA-1 y con la adición de sueros positivos a ABA-1, pero no en sueros IgE negativa a ABA-1.
An approximate randomization test for high-dimensional two-sample Behrens-Fisher problem under arbitrary covariances
Creators: name: Wang, Rui
name: Xu, Wangli
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: This paper is concerned with the problem of comparing the population means of two groups of independent observations. An approximate randomization test procedure based on the test statistic of Chen and Qin (2010) is proposed. The asymptotic behavior of the test statistic as well as the randomized statistic is studied under weak conditions. In our theoretical framework, observations are not assumed to be identically distributed even within groups. No condition on the eigenstructure of the covariance matrices is imposed. And the sample sizes of the two groups are allowed to be unbalanced. Under general conditions, all possible asymptotic distributions of the test statistic are obtained. We derive the asymptotic level and local power of the approximate randomization test procedure. Our theoretical results show that the proposed test procedure can adapt to all possible asymptotic distributions of the test statistic and always has correct test level asymptotically. Also, the proposed test procedure has good power behavior. Our numerical experiments show that the proposed test procedure has favorable performance compared with several alternative test procedures.
description: 52 pages. To appear in Biometrika
Knowledge-Grounded Dialogue Flow Management for Social Robots and Conversational Agents
Creators: name: Grassi, Lucrezia
name: Recchiuto, Carmine Tommaso
name: Sgorbissa, Antonio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The article proposes a system for knowledge-based conversation designed for Social Robots and other conversational agents. The proposed system relies on an Ontology for the description of all concepts that may be relevant conversation topics, as well as their mutual relationships. The article focuses on the algorithm for Dialogue Management that selects the most appropriate conversation topic depending on the user's input. Moreover, it discusses strategies to ensure a conversation flow that captures, as more coherently as possible, the user's intention to drive the conversation in specific directions while avoiding purely reactive responses to what the user says. To measure the quality of the conversation, the article reports the tests performed with 100 recruited participants, comparing five conversational agents: (i) an agent addressing dialogue flow management based only on the detection of keywords in the speech, (ii) an agent based both on the detection of keywords and the Content Classification feature of Google Cloud Natural Language, (iii) an agent that picks conversation topics randomly, (iv) a human pretending to be a chatbot, and (v) one of the most famous chatbots worldwide: Replika. The subjective perception of the participants is measured both with the SASSI (Subjective Assessment of Speech System Interfaces) tool, as well as with a custom survey for measuring the subjective perception of coherence.
description: 21 pages, 20 figures
Frederikssted: archaeology of a former Danish plantation at Dodowa, Ghana
Creators: name: Mensah Abrampah, David Akwasi
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 Archaeology program, School of Humanities and Social Sciences, College of Arts, Social Sciences and Commerce, La Trobe University, Bundoora, Victoria.
title: Interventionelle Therapie einer symptomatischen Nierenarterienstenose im Rahmen einer Takayasu-Arteriitis bei einer 17-jährigen Patientin
Creators: name: Buchtala, Laura
name: Heckmann, Volker
name: Weller-Heinemann, Frank
name: Lê, Trong-Phi
name: Huppertz, Hans-Iko
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Takayasu-Arteriitis ist eine seltene, chronisch-rezidivierende Vaskulitis der Aorta und der großen Arterien, die typischerweise mit einer Stenosenbildung und daraus resultierender Perfusionsminderung einhergeht. Methoden: Wir berichten über eine 17-jährige Patientin,[zum vollständigen Text gelangen Sie über die oben angegebene 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)