cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Papillary tumor of the pineal region: A distinct molecular entity
Creators: name: Heim, Stephanie
name: Sill, Martin
name: Jones, David T.W.
name: Vasiljevic, Alexandre
name: Jouvet, Anne
name: Fèvre-Montange, Michelle
name: Wesseling, Pieter
name: Beschorner, Rudi
name: Mittelbronn, Michel
name: Kohlhof, Patricia
name: Hovestadt, Volker
name: Johann, Pascal
name: Kool, Marcel
name: Pajtler, Kristian W.
name: Korshunov, Andrey
name: Ruland, Vincent
name: Thomas, Christian
name: Witt, Hendrik
name: Von Deimling, Andreas
name: Paulus, Werner
name: Pfister, Stefan M.
name: Capper, David
name: Hasselblatt, Martin
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Question: Papillary tumor of the pineal region (PTPR) is a neuroepithelial brain tumor which might pose diagnostic difficulties and recurs often. Little is known about underlying molecular alterations. Methods: Chromosomal copy number alterations (Affymetrix Oncoscan MIP SNP Array), DNA methylation[for full text, please go to the a.m. URL]
description: 60th Annual Meeting of the German Society for Neuropathology and Neuroanatomy (DGNN)
Factors Affecting The Successful Implementation Of Enterprise Resource Planning (ERP) Project: The Case Of Ethiopian Postal Service Enterprise
Creators: name: Woldemariam, Elias
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The purpose of the study was to examine factors affecting successful implementation of ERP Project in Ethiopian postal service enterprise. The study was guided by the following specific objectives; Identification of common factors affecting successful implementation of ERP project in Ethiopian postal service, assessing collective effects of the factors on ERP project implementation, assessing the individual effect of each of factors on ERP project, and ranking the factors according to the weight of their effects on ERP project. Quantitative research approach was used in the study. Mixed research design was used to identify and examine factors that affect the successful implementation of ERP Project in the case company. The total numbers of purposively selected respondents were taken as the sample size of the study. The data was collected using a questionnaire comprised of 47 close-ended questions with Likert scale. Based on the findings, among the seven independent factors five of (Business Process Reengineering, Communication, Top Management Support, Team Competency, Project management) the independent factors were found to have positive and significant correlation with the dependent variable which is ERP implementation. The ANOVA test result showed that, the value of R and R2 obtained under the model summary was statistically significant. The multiple linear regression analysis revealed that, 4 of the 7 independent variables (Communication, Top Management Support, Team Competency, Project management) have a statistically significant positive relationship to predict ERP implementation successes whereas Business Process Reengineering has a statistically significant negative relationship to predict ERP implementation successes.
The Hörmander condition for delayed stochastic differential equations
Creators: name: Chhaibi, Reda
name: Ekren, Ibrahim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this paper, we are interested in path-dependent stochastic differential equations (SDEs) which are controlled by Brownian motion and its delays. Within this non-Markovian context, we give a H örmander-type criterion for the regularity of solutions. Indeed, our criterion is expressed as a spanning condition with brackets. A novelty in the case of delays is that noise can "flow from the past" and give additional smoothness thanks to semi-brackets. The proof follows the general lines of Malliavin's probabilistic proof, in the Markovian case. Nevertheless, in order to handle the non-Markovian aspects of this problem and to treat anticipative integrals in a path-wise fashion, we heavily invoke rough path integration.
description: 21 pages, v3: Minors corrections and reformulations
Plan integral de desarrollo del centro de desarrollo del Centro de Desarrollo Vecinal de la Esperanza
Creators: name: Cantillo F, Holberth
name: Urango Ruiz, Osiris
Publisher: name: Universidad de Cartagena
Year: 1990
Subjects: Plan de desarrollo - Centro de Desarrollo Vecinal de la Esperanza

description: Tesis (Economista).-- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1990
description: El presente estudio tiene por objeto presentar un plan integral de desarrollo que señale las directrices generales para el manejo administrativo financiero, de la comuna para lograr mejores niveles de desarrollo social y económico.
title: Pathological features of steroid mitigated CNS lymphoma mimicking inflammatory demyelination
Creators: name: Barrantes-Freer, Alonso
name: Engel, Aylin Sophie Handan
name: Rodríguez-Villagra, Odir Antonio
name: Bergmann, Markus
name: Mawrin, Christian
name: Kuempfel, Tania
name: Pellkofer, Hannah
name: Metz, Imke
name: Bleckmann, Annalen
name: Schippling, Sven
name: Rushing, Elisabeth Jane
name: Frank, Stephan
name: Glatzel, Markus
name: Matschke, Jakob
name: Hartmann, Christian
name: Reifenberger, Guido
name: Brueck, Wolfgang
name: Stadelmann, Chrsitine
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Histologically, the differential diagnosis of inflammatory demyelination encompasses a heterogeneous group of pathologies, of which multiple sclerosis (MS) represents the principal consideration. Nevertheless, the presence of inflammation and demyelination has also been described in patients with suspected[for full text, please go to the a.m. URL]
description: 60th Annual Meeting of the German Society for Neuropathology and Neuroanatomy (DGNN)
Islamophobes are not all the same! A study of far right actors on Twitter
Creators: name: Vidgen, Bertie
name: Yasseri, Taha
name: Margetts, Helen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: Physics and Society (physics.soc-ph)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Far-right actors are often purveyors of Islamophobic hate speech online, using social media to spread divisive and prejudiced messages which can stir up intergroup tensions and conflict. Hateful content can inflict harm on targeted victims, create a sense of fear amongst communities and stir up intergroup tensions and conflict. Accordingly, there is a pressing need to better understand at a granular level how Islamophobia manifests online and who produces it. We investigate the dynamics of Islamophobia amongst followers of a prominent UK far right political party on Twitter, the British National Party. Analysing a new data set of five million tweets, collected over a period of one year, using a machine learning classifier and latent Markov modelling, we identify seven types of Islamophobic far right actors, capturing qualitative, quantitative and temporal differences in their behaviour. Notably, we show that a small number of users are responsible for most of the Islamophobia that we observe. We then discuss the policy implications of this typology in the context of social media regulation.
title: Claudin-3 maintains blood-brain barrier and delays recovery from stroke
Creators: name: Blasig, Ingolf
name: Winkler, Lars
name: Breitkreuz-Korff, Olga
name: Berndt, Philipp
name: Kaya, Mehmet
name: Liebner, Stefan
name: Rex, Andre
name: Blasig, Rosel
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: In stroke, the role of the blood-brain barrier (BBB) is unknown. The barrier-forming endothelium paracellularly sealed by tight junctions (TJs) protects the homeostasis of the brain against peripheral disturbances and ensures appropriate metabolite exchange. Sealing of the barrier is caused by claudins[for full text, please go to the a.m. URL]
description: 60th Annual Meeting of the German Society for Neuropathology and Neuroanatomy (DGNN)
Lifting for Simplicity: Concise Descriptions of Convex Sets
Creators: name: Fawzi, Hamza
name: Gouveia, João
name: Parrilo, Pablo A.
name: Saunderson, James
name: Thomas, Rekha R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: This paper presents a selected tour through the theory and applications of lifts of convex sets. A lift of a convex set is a higher-dimensional convex set that projects onto the original set. Many convex sets have lifts that are dramatically simpler to describe than the original set. Finding such simple lifts has significant algorithmic implications, particularly for optimization problems. We consider both the classical case of polyhedral lifts, described by linear inequalities, as well as spectrahedral lifts, defined by linear matrix inequalities, with a focus on recent developments related to spectrahedral lifts. Given a convex set, ideally we would either like to find a (low-complexity) polyhedral or spectrahedral lift, or find an obstruction proving that no such lift is possible. To this end, we explain the connection between the existence of lifts of a convex set and certain structured factorizations of its associated slack operator. Based on this characterization, we describe a uniform approach, via sums of squares, to the construction of spectrahedral lifts of convex sets and illustrate the method on several families of examples. Finally, we discuss two flavors of obstruction to the existence of lifts: one related to facial structure, and the other related to algebraic properties of the set in question. Rather than being exhaustive, our aim is to illustrate the richness of the area. We touch on a range of different topics related to the existence of lifts, and present many examples of lifts from different areas of mathematics and its applications.
description: 47 pages, 27 figures
Modeling Heterogeneous Peer Assortment Effects using Finite Mixture Exponential Random Graph Models
Creators: name: Henry, Teague R
name: Gates, Kathleen M
name: Prinstein, Mitchell J
name: Steinley, Douglas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This article develops a class of models called Sender/Receiver Finite Mixture Exponential Random Graph Models (SRFM-ERGMs) that enables inference on networks. This class of models extends the existing Exponential Random Graph Modeling framework to allow analysts to model unobserved heterogeneity in the effects of nodal covariates and network features. An empirical example regarding substance use among adolescents is presented. Simulations across a variety of conditions are used to evaluate the performance of this technique. We conclude that that unobserved heterogeneity in effects of nodal covariates can be a major cause of mis-fit in network models, and the SRFM-ERGM approach can alleviate this misfit. Implications for the analysis of social networks in psychological science are discussed.
AMBRE: A Compact Instrument to Measure Thermal Ions, Electrons and Electrostatic Charging Onboard Spacecraft
Creators: name: Lavraud, B.
name: Cara, A.
name: Payan, D.
name: Ballot, Y.
name: Sauvaud, J. -A.
name: Mathon, R.
name: Camus, T.
name: Chassela, O.
name: Seran, H. -C.
name: Tap, H.
name: Bernal, O.
name: Berthomier, M.
name: Devoto, P.
name: Fedorov, A.
name: Rouzaud, J.
name: Rubiella-Romeo, J.
name: Techer, J. -D
name: Zely, D.
name: Galinier, S.
name: Bruno, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The Active Monitor Box of Electrostatic Risks (AMBER) is a double-head thermal electron and ion electrostatic analyzer (energy range 0-30 keV) that was launched onboard the Jason-3 spacecraft in 2016. The next generation AMBER instrument, for which a first prototype was developed and then calibrated at the end of 2017, constitutes a significant evolution that is based on a single head to measure both species alternatively. The instrument developments focused on several new subsystems (front-end electronics, high-voltage electronics, mechanical design) that permit to reduce instrument resources down to ~ 1 kg and 1.5 W. AMBER is designed as a generic radiation monitor with a twofold purpose: (1) measure magnetospheric thermal ion and electron populations in the range 0-35 keV, with significant scientific potential (e.g., plasmasphere, ring current, plasma sheet), and (2) monitor spacecraft electrostatic charging and the plasma populations responsible for it, for electromagnetic cleanliness and operational purposes.
Lineamientos para el plan de manejo Ambiental del Arroyo Caimital de Arjona - Bolívar
Creators: name: Perez Franco, Nestor Ruben
name: Reyes Pajaro, Luis Fernando
Publisher: name: Universidad de Cartagena
Year: 2006
Subjects: Gestión ambiental
Protección del medio ambiente - Caribe (Región, Colombia)
Hidráulica

description: Tesis (ingeniero Civil). -- Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería Civil, 2006.
description: El presente estudio tiene por objeto establecer lineamientos que sirvan de base para la formulación del plan de manejo ambiental del arroyo de Caimital ubicado en el Municipio de Arjona Bolivar.
Fooling with facts: Quantifying anchoring bias through a large-scale online experiment
Creators: name: Yasseri, Taha
name: Reher, Jannie
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Living in the 'Information Age' means that not only access to information has become easier but also that the distribution of information is more dynamic than ever. Through a large-scale online field experiment, we provide new empirical evidence for the presence of the anchoring bias in people's judgment due to irrational reliance on a piece of information that they are initially given. The comparison of the anchoring stimuli and respective responses across different tasks reveals a positive, yet complex relationship between the anchors and the bias in participants' predictions of the outcomes of events in the future. Participants in the treatment group were equally susceptible to the anchors regardless of their level of engagement, previous performance, or gender. Given the strong and ubiquitous influence of anchors quantified here, we should take great care to closely monitor and regulate the distribution of information online to facilitate less biased decision making.
description: Under Review, 15 pages + Supplementary Information
Localization of weakly interacting bosons in two dimensions: disorder vs lattice geometry effects
Creators: name: Gonzalez-Garcia, Luis A.
name: Caballero-Benitez, Santiago F.
name: Paredes, Rosario
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the effects of disorder and lattice geometry against localisation phenomena in a weakly interacting ultracold bosonic gas confined in a 2D optical lattice. The behaviour of the quantum fluid is studied at the mean-field level performing computational experiments, as a function of disorder strength for lattices of sizes similar to current experiments. Quantification of localisation, away from the Bose glass phase, was obtained directly from the stationary density profiles through a robust statistical analysis of the condensate component, as a function of the disorder amplitude. Our results show a smooth transition, or crossover, to localisation induced by disorder in square and triangular lattices. In contrast, associated to its larger tunneling amplitude, honeycomb lattices show absence of localisation for the same range of disorder strengths and same lattice amplitude, while also exhibiting partial localisation for large disorder amplitudes. We also conclude that the coordination number z have a partial influence on how fast this smooth transition occurs as the system size increases. Signatures of disorder are also found in the ground state energy spectrum, where a continuous distribution emerges instead of a distribution of sharp peaks proper to the system in the absence of disorder.
description: 13 pages, 6 Figures (Final Accepted version)
The multi-period $p$-center problem with time-dependent travel times
Creators: name: Calogiuri, Tobia
name: Ghiani, Gianpaolo
name: Guerriero, Emanuela
name: Manni, Emanuele
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: This paper deals with a multi-period extension of the p-center problem, in which arc traversal times vary over time, and facilities are mobile units that can be relocated multiple times during the planning horizon. The problem arises in several applications, such as emergency services, in which vehicles can be relocated in anticipation of traffic congestion. First, we analyze the problem structure and its relationship with its single-period counterpart, including a special case. Then, the insight gained with this analysis is used to devise a decomposition heuristic. Computational results on instances based on the Paris (France) road graph indicate that the algorithm is capable of determining good-quality solutions in a reasonable execution time.
Tied Monoids
Creators: name: Arcis, Diego
name: Juyumaya, Jesús
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 05A18, 20M32, 20F36

description: We construct certain monoids, called tied monoids. These monoids result to be semidirect products finitely presented and commonly built from braid groups and their relatives acting on monoids of set partitions. The nature of our monoids indicate that they should give origin to new knot algebras; indeed, our tied monoids include the tied braid monoid and the tied singular braid monoid, which were used, respectively, to construct new polynomial invariants for classical links and singular links. Consequently, we provide a mechanism to attach an algebra to each tied monoid. To build the tied monoids it is necessary to have presentations of set partition monoids of types A, B and D, among others. For type A we use a presentation due to FitzGerald and for the other type it was necessary to built them.
description: 47 pages
Supplementary document for Mid-infrared luminescence properties of erbium and dysprosium doped lanthanum titanate glasses - 6615015.pdf
Creators: name: Topper, Brian
name: Wilke, Stephen
name: Pettes, Michael
name: Alrubkhi, Abdulrahman
name: Menon, Vrishank
name: Neumann, Alexander
name: Möncke, Doris
name: Weber, Richard
name: Mafi, Arash
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Contains supplementary Figures S1 and S2 to aid the reader
Fragment-Based Drug Design of Novel HIV-1 Reverse Transcriptase Inhibitors
Creators: name: DAWSON, SHANE LILLIS
Publisher: name: Monash University
Year: 2021
Subjects: Pharmaceutical sciences

description: HIV-1 reverse transcriptase (RT) inhibitors are critical components of antiretroviral therapy (ART) regimens used to control viral load in HIV patients. Previous work identified multiple inhibitory fragments of HIV-RT that bind to a novel allosteric pocket and possess a mechanism of action distinct from that of currently available drugs. This thesis builds upon these studies and applies a fragment-based drug design approach to systematically develop hit compounds into potent inhibitors. Over 120 purified and 180 unpurified compounds were evaluated. Additionally, this thesis describes mutagenesis studies used to assess a possible binding site of these inhibitors.
The Hitchin connection in arbitrary characteristic
Creators: name: Baier, Thomas
name: Bolognesi, Michele
name: Martens, Johan
name: Pauly, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D20, 14H60, 14F05 (Primary), 58J52 (Secondary)

description: We give an algebro-geometric construction of the Hitchin connection, valid also in positive characteristic (with a few exceptions). A key ingredient is a substitute for the Narasimhan-Atiyah-Bott Kähler form that realizes the Chern class of the determinant-of-cohomology line bundle on the moduli space of bundles on a curve. As replacement we use an explicit realisation of the Atiyah class of this line bundle, based on the theory of the trace complex due to Beilinson-Schechtman and Bloch-Esnault.
description: 41 pages, final version; to appear in J. Inst. Math. Jussieu
Positive algorithmic bias cannot stop fragmentation in homophilic networks
Creators: name: Blex, Chris
name: Yasseri, Taha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Fragmentation, echo chambers, and their amelioration in social networks have been a growing concern in the academic and non-academic world. This paper shows how, under the assumption of homophily, echo chambers and fragmentation are system-immanent phenomena of highly flexible social networks, even under ideal conditions for heterogeneity. We achieve this by finding an analytical, network-based solution to the Schelling model and by proving that weak ties do not hinder the process. Furthermore, we derive that no level of positive algorithmic bias in the form of rewiring is capable of preventing fragmentation and its effect on reducing the fragmentation speed is negligible.
description: Cite as: Chris Blex & Taha Yasseri (2020) Positive algorithmic bias cannot stop fragmentation in homophilic networks, The Journal of Mathematical Sociology, DOI: 10.1080/0022250X.2020.1818078
Estimation of the magnetic flux emergence rate in the quiet Sun from Sunrise data
Creators: name: Smitha, H. N.
name: Anusha, L. S.
name: Solanki, S. K.
name: Riethmueller, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Small-scale internetwork (IN) features are thought to be the major source of fresh magnetic flux in the quiet Sun. During its first science flight in 2009, the balloon-borne observatory Sunrise captured images of the magnetic fields in the quiet Sun at a high spatial resolution. Using these data we measure the rate at which the IN features bring magnetic flux to the solar surface. In a previous paper it was found that the lowest magnetic flux in small-scale features detected using the Sunrise observations is 9 x 10^14 Mx. This is nearly an order of magnitude smaller than the smallest fluxes of features detected in observations from the Hinode satellite. In this paper, we compute the flux emergence rate (FER) by accounting for such small fluxes, which was not possible before Sunrise. By tracking the features with fluxes in the range 10^15-10^18 Mx, we measure an FER of 1100 Mx cm^-2 day^-1. The smaller features with fluxes less than or equal to 10^16 Mx are found to be the dominant contributors to the solar magnetic flux. The FER found here is an order of magnitude higher than the rate from Hinode, obtained with a similar feature tracking technique. A wider comparison with the literature shows, however, that the exact technique of determining the rate of the appearance of new flux can lead to results that differ by up to two orders of magnitude, even when applied to similar data. The causes of this discrepancy are discussed and first qualitative explanations proposed.
description: Published in The Astrophysical Journal Supplement Series
Arca: red de promotores sociales de la arquidiócesis de Cartagena para el fortalecimiento de la participación ciudadana y la exigibilidad de los derechos sociales, económicos, culturales y ambientales (DESCA). año 2010
Creators: name: López Loaiza, Diana Carolina
name: Pájaro Reyes, Yiseth Del Carmen
Publisher: name: Universidad de Cartagena
Year: 2010
Subjects: Trabajo social - Casos

description: Tesis(Trabajador Social).--Universidad de Cartagena. Programa de Trabajo Social. 2010
description: El presente proyecto es planteado desde el Secretariado de pastoral Social, como una estrategia para el fortalecimiento de la participación ciudadana y la exigibilidad de los derechos. Cabe señalar, que el diseño del mismo está pensado en dos fases, la primera desarrolla por las estudiantes en prácticas de último año de Trabajo Social, y la segunda presentada en su diseño para ser ejecuta por la entidad. Por lo tanto este documenta presenta aspectos correspondientes al Referente Institucional, Descripción del proyecto de intervención, Descripción de la ejecución del proyecto de intervención, Resultados, Evaluación del proyecto de la Red, Reflexiones sobre la intervención del trabajador social, Conclusiones y Recomendaciones.
The Kim-Pillay theorem for Abstract Elementary Categories
Creators: name: Kamsma, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 03C45 (Primary) 03C48, 03C52, 03C66, 18C35 (Secondary)

description: We introduce the framework of AECats (abstract elementary categories), generalising both the category of models of some first-order theory and the category of subsets of models. Any AEC and any compact abstract theory ("cat", as introduced by Ben-Yaacov) forms an AECat. In particular, we find applications in positive logic and continuous logic: the category of (subsets of) models of a positive or continuous theory is an AECat. The Kim-Pillay theorem for first-order logic characterises simple theories by the properties dividing independence has. We prove a version of the Kim-Pillay theorem for AECats with the amalgamation property, generalising the first-order version and existing versions for positive logic.
description: 22 pages
El estado de cosas inconstitucional en materia de desplazamiento forzado, en el marco del posconflicto.
Creators: name: Narvaez Martínez, Luis Fernando
Publisher: name: Universidad de Cartagena
Year: 2021
Subjects: Población desplazada
Conflicto armado
Derecho constitucional

description: Tesis (Abogado) -- Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 2021
description: La figura del estado de cosas inconstitucionales tuvo su origen y desarrollo en la corte constitucional y es considerada una herramienta jurisprudencial para garantizar el efectivo cumplimiento de los derechos fundamentales de la población en forma masiva, el primer pronunciamiento de la corte con relación a esta materia se dio en la sentencia T 205 de 2004, sin embargo aún no se han resuelto los problemas que llevaron a su declaratoria, motivo que ha suscitado la negativa de la corte frente a la solicitud del gobierno de levantar la medida del “Estado de cosas inconstitucionales”, ya que en consideración de la misma , el estado primero debe garantizar el mismo nivel de protección efectiva para los desplazados frente al resto de la población colombiana, lo cual se convierte en un verdadero desafío con miras a la reparación de víctimas, en el marco del posconflicto.
An ecological framework for the analysis of prebiotic chemical reaction networks and their dynamical behavior
Creators: name: Peng, Zhen
name: Plum, Alex
name: Gagrani, Praful
name: Baum, David A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: It is becoming widely accepted that very early in the origin of life, even before the emergence of genetic encoding, reaction networks of diverse small chemicals might have manifested key properties of life, namely self-propagation and adaptive evolution. To explore this possibility, we formalize the dynamics of chemical reaction networks within the framework of chemical ecosystem ecology. To capture the idea that life-like chemical systems are maintained out of equilibrium by fluxes of energy-rich food chemicals, we model chemical ecosystems in well-mixed containers that are subject to constant dilution by a solution with a fixed concentration of food chemicals. Modelling all chemical reactions as fully reversible, we show that seeding an autocatalytic cycle (AC) with tiny amounts of one or more of its member chemicals results in logistic growth of all member chemicals in the cycle. This finding justifies drawing an instructive analogy between an AC and the population of a biological species. We extend this finding to show that pairs of ACs can show competitive, predator-prey, or mutualistic associations just like biological species. Furthermore, when there is stochasticity in the environment, particularly in the seeding of ACs, chemical ecosystems can show complex dynamics that can resemble evolution. The evolutionary character is especially clear when the network architecture results in ecological precedence (survival of the first), which makes the path of succession historically contingent on the order in which cycles are seeded. For all its simplicity, the framework developed here is helpful for visualizing how autocatalysis in prebiotic chemical reaction networks can yield life-like properties. Furthermore, chemical ecosystem ecology could provide a useful foundation for exploring the emergence of adaptive dynamics and the origins of polymer-based genetic systems.
Exploiting Web Images for Dataset Construction: A Domain Robust Approach
Creators: name: Yao, Yazhou
name: Zhang, Jian
name: Shen, Fumin
name: Hua, Xiansheng
name: Xu, Jingsong
name: Tang, Zhenmin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Labelled image datasets have played a critical role in high-level image understanding. However, the process of manual labelling is both time-consuming and labor intensive. To reduce the cost of manual labelling, there has been increased research interest in automatically constructing image datasets by exploiting web images. Datasets constructed by existing methods tend to have a weak domain adaptation ability, which is known as the "dataset bias problem". To address this issue, we present a novel image dataset construction framework that can be generalized well to unseen target domains. Specifically, the given queries are first expanded by searching the Google Books Ngrams Corpus to obtain a rich semantic description, from which the visually non-salient and less relevant expansions are filtered out. By treating each selected expansion as a "bag" and the retrieved images as "instances", image selection can be formulated as a multi-instance learning problem with constrained positive bags. We propose to solve the employed problems by the cutting-plane and concave-convex procedure (CCCP) algorithm. By using this approach, images from different distributions can be kept while noisy images are filtered out. To verify the effectiveness of our proposed approach, we build an image dataset with 20 categories. Extensive experiments on image classification, cross-dataset generalization, diversity comparison and object detection demonstrate the domain robustness of our dataset.
description: Journal
Assessing Project Management Practices Of Ngo's Aid/Development Project: A Case Of Gudina Tumsa Foundation
Creators: name: Hezkias, Natnael
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: There have been different kinds of research carried out on project management (PM) practices addressing performance gaps in developmental projects. The Project Management Institute (PMI) has developed the Project Management Body of Knowledge (PMBOK) as the best practices in managing projects over the past decades. The main aim of this paper is to assess the project management practices of aid/development projects: A case of Gudina Tumsa foundation. Finding out which practices they are using, is these practices were based on the ten knowledge areas. The descriptive research design was used in the study and the census survey was used because the participants were few. Both the quantitative and qualitative research approach was used the study. The data obtained was analysed using mean and percentages the knowledge areas were further putted in SD. The research instrument used for this paper is both primary and secondary data, Primary data was collected using a questionnaire and a semi-structured interview secondary data was used from different documents from the organization and other book and journals. The questionnaire was distributed to all the members in the organization out of 27 individuals 23 (85 %) of them properly filled and return it. The researcher interviewed the program officer and top managers, and some board members of the organization. From the finding, it can be understood that some of the knowledge areas were properly managed and used but some have not been properly managed although they have managed some of them it was traditionally. This paper suggests that the organization should implement different projects based on project management knowledge areas and using each knowledge area processes to formally implement it.
Caracterización geotécnica del subsuelo y evaluación sísmica en el sector san Pedro del Centro Histórico de la ciudad de Cartagena de Indias D.T. Y C
Creators: name: Amador Cantillo, Iván Felix
name: Zuluaga González, José Blás
Publisher: name: Universidad de Cartagena
Year: 2017
Subjects: Mecánica de suelos
Geotecnia
Análisis de suelos
Vulnerabilidad sísmica

description: Tesis (Ingeniero Civil).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería Civil, 2017
description: El presente estudio tiene por objeto, caracterizar geotécnicamente el subsuelo del sector San Pedro del centro histórico de la ciudad de Cartagena de Indias, mediante el análisis de información obtenida de estudios de suelos registrados en la zona para determinar su comportamiento ante posibles eventos sísmicos y establecer recomendaciones que ayuden a preservar la arquitectura colonial en la ciudad amurallada patrimonio de la humanidad.
Estudio de factibilidad para el montaje de una fabrica elaboradora de fibra de vidrio en la ciudad de Cartagena
Creators: name: Hérnandez León, Lázaro
name: Garcia Álvarez, Gabriel
Publisher: name: Universidad de Cartagena
Year: 1975
Subjects: Estudio de mercadeo
Estudio de factibilidad

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía, 1975
description: El presente trabajo tiene como objetivo,mostrar la factibilidad del montaje de una pequeña fabrica elaboradora de fibra de vidrio en la Ciudad de Cartagena, en la que se producirán principalmente cuatro tipos de fibras de vidrios, velo ligero, velo pesado, velo más pesado y grueso(FLE).
Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet
Creators: name: Hong, Tao
name: Qiu, Y.
name: Matsumoto, M.
name: Tennant, D. A.
name: Coester, K.
name: Schmidt, K. P.
name: Awwadi, F. F.
name: Turnbull, M. M.
name: Agrawal, H.
name: Chernyshev, A. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The notion of a quasiparticle, such as a phonon, a roton, or a magnon, is used in modern condensed matter physics to describe an elementary collective excitation. The intrinsic zero-temperature magnon damping in quantum spin systems can be driven by the interaction of the one-magnon states and multi-magnon continuum. However, detailed experimental studies on this quantum many-body effect induced by an applied magnetic field are rare. Here we present a high-resolution neutron scattering study in high fields on an S=1/2 antiferromagnet C9H18N2CuBr4. Compared with the non-interacting linear spin-wave theory, our results demonstrate a variety of phenomena including field-induced renormalization of one-magnon dispersion, spontaneous magnon decay observed via intrinsic linewidth broadening, unusual non-Lorentzian two-peak structure in the excitation spectra, and a dramatic shift of spectral weight from one-magnon state to the two-magnon continuum.
description: 8 pages, 6 figures, some typos were corrected in the revised version
The Asymptotic Distribution of the MLE in High-dimensional Logistic Models: Arbitrary Covariance
Creators: name: Zhao, Qian
name: Sur, Pragya
name: Candès, Emmanuel J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We study the distribution of the maximum likelihood estimate (MLE) in high-dimensional logistic models, extending the recent results from Sur (2019) to the case where the Gaussian covariates may have an arbitrary covariance structure. We prove that in the limit of large problems holding the ratio between the number $p$ of covariates and the sample size $n$ constant, every finite list of MLE coordinates follows a multivariate normal distribution. Concretely, the $j$th coordinate $\hat β_j$ of the MLE is asymptotically normally distributed with mean $α_\star β_j$ and standard deviation $σ_\star/τ_j$; here, $β_j$ is the value of the true regression coefficient, and $τ_j$ the standard deviation of the $j$th predictor conditional on all the others. The numerical parameters $α_\star > 1$ and $σ_\star$ only depend upon the problem dimensionality $p/n$ and the overall signal strength, and can be accurately estimated. Our results imply that the MLE's magnitude is biased upwards and that the MLE's standard deviation is greater than that predicted by classical theory. We present a series of experiments on simulated and real data showing excellent agreement with the theory.
On weakly singular and fully nonlinear travelling shallow capillary-gravity waves in the critical regime
Creators: name: Mitsotakis, Dimitrios
name: Dutykh, Denys
name: Assylbekuly, Aydar
name: Zhakebayev, Dauren
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: Analysis of PDEs (math.AP)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this Letter we consider long capillary-gravity waves described by a fully nonlinear weakly dispersive model. First, using the phase space analysis methods we describe all possible types of localized travelling waves. Then, we especially focus on the critical regime, where the surface tension is exactly balanced by the gravity force. We show that our long wave model with a critical Bond number admits stable travelling wave solutions with a singular crest. These solutions are usually referred to in the literature as peakons or peaked solitary waves. They satisfy the usual speed-amplitude relation, which coincides with Scott-Russel's empirical formula for solitary waves, while their decay rate is the same regardless their amplitude. Moreover, they can be of depression or elevation type independent of their speed. The dynamics of these solutions are studied as well.
description: 16 pages, 9 figures, 18 references. Other author's papers can be downloaded at http://www.denys-dutykh.com/
An assessment of the project planning on project performance in SNNPR roads authority of Hossana district roads authority construction projects.
Creators: name: Ataro, Andineh
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Analysis of the completed projects illustrate that a significant number of projects exceed the planned time and costs and consequently reducing the benefits. Among many causes of project failure, it is clearly identified that poor planning has an impact on project performance. The main objective of the project work report presented in this paper was to assess the role of project planning on project performance in SNNPR of Hossana district roads authority roads and bridge construction projects. In order to achieve the objectives, information of past projects was collected from 20 employees from different departments the district. A questionnaire survey conducted to collect datd from the respondents that consisted of project manager, regional supervisors, and other related respondents. The study used SPSS version 16 for descriptive statistics and correlation analysis, and hypotheses to test and to know the relationship of among planning processes, factors and planning knowledge areas. The findings of this project work report indicate that the main planning input factors that affect the performance of planning processes are: - human, management, technical and organizational factors. And also the finding identifies the main problem areas in planning processes as risk, communication, and quality of human resource knowledge areas were inadequately performed in the studied project. The result of the finding also identifies 15 influential planning activities that affect the performance of project out come. This report recommends an organization that conducts any project should improve the poor planning performance of the identified planning knowledge areas. It should be also important for the organization to spend more efforts in the identified planning activities to improve the performance of their project outcome.
The nonlinear fractional relativistic Schrödinger equation: existence, multiplicity, decay and concentration results
Creators: name: Ambrosio, Vincenzo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we study the following class of fractional relativistic Schrödinger equations: \begin{equation*} \left\{ \begin{array}{ll} (-Δ+m^{2})^{s}u + V(\varepsilon x) u= f(u) &\mbox{ in } \mathbb{R}^{N}, \\ u\in H^{s}(\mathbb{R}^{N}), \quad u>0 &\mbox{ in } \mathbb{R}^{N}, \end{array} \right. \end{equation*} where $\varepsilon>0$ is a small parameter, $s\in (0, 1)$, $m>0$, $N> 2s$, $(-Δ+m^{2})^{s}$ is the fractional relativistic Schrödinger operator, $V:\mathbb{R}^{N}\rightarrow \mathbb{R}$ is a continuous potential satisfying a local condition, and $f:\mathbb{R}\rightarrow \mathbb{R}$ is a continuous subcritical nonlinearity. By using a variant of the extension method and a penalization technique, we first prove that, for $\varepsilon>0$ small enough, the above problem admits a weak solution $u_{\varepsilon}$ which concentrates around a local minimum point of $V$ as $\varepsilon\rightarrow 0$. We also show that $u_{\varepsilon}$ has an exponential decay at infinity by constructing a suitable comparison function and by performing some refined estimates. Secondly, by combining the generalized Nehari manifold method and Ljusternik-Schnirelman theory, we relate the number of positive solutions with the topology of the set where the potential $V$ attains its minimum value.
On droplets coalescence in a quasi-2D fluid
Creators: name: Klopp, Christoph
name: Eremin, Alexey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The coalescence of droplets plays a crucial role in nature and modern technology. Various experimental and theoretical studies explored droplet dynamics in 3D and on 2D solid or liquid substrates. In this paper, we demonstrate the coalescence of isotropic droplets confined in thin quasi-2D liquids -- overheated smectic films. We observe the merging of micrometer-sized flat droplets using high-speed-imaging and analyse the shape transformations of the droplets on the timescale of milliseconds. Our studies reveal the scaling laws of the coalescence time, which exhibits a different dependence on the droplet geometry than in case of droplets on a solid substrate. A theoretical model is proposed to explain the difference in behaviour.
Studieneingangstests und Studienerfolg. Mögliche Zusammenhänge am Beispiel zweier Hochschulen
Creators: name: Greefrath, Gilbert
name: Neugebauer, Christoph
name: Koepf, Wolfram
name: Hoever, Georg
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: Tests zu Studienbeginn werden an vielen Hochschulen durchgeführt, um die mathematischen Fähigkeiten der Studienanfänger zu ermitteln. Am Beispiel der Daten von der Universität Kassel und der Fachhochschule Aachen werden Einflüsse von Vorkursen und Zusammenhänge der Ergebnisse von Studieneingangstests und Mathematikklausuren der ersten Semester untersucht. Es zeigt sich ein durchaus unterschiedliches Bild – in Abhängigkeit der konkreten Rahmenbedingungen.
El verdadero origen de los partidos políticos tradicionales de Colombia
Creators: name: Romano Ascano, Luis A.
Publisher: name: Universidad de Cartagena
Year: 1979
Subjects: Partidos políticos - Colombia
Partidos políticos - Aspectos jurídicos - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1979
description: Situaciones y hechos confusos que manejan el periodo, hace más complejo y difícil establecer como punto de origen la tradición, división de los partidos políticos en el territorio patrio, viendo como se han desenvuelto y se desenvuelve la historia de la vida constitucional colombiana.
Coupled Mode Theory for Semiconductor Nanowires
Creators: name: Buschlinger, Robert
name: Lorke, Michael
name: Peschel, Ulf
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a model to describe the spatiotemporal evolution of guided modes in semiconductor nanowires based on a coupled mode formalism. Light-matter interaction is modelled based on semiconductor Bloch equations, including many-particle effects in the screened Hartree-Fock approximation. Appropriate boundary conditions are used to incorporate reflections at waveguide endfacets, thus allowing for the simulation of nanowire lasing. We compute the emission characteristics and temporal dynamics of CdS and ZnO nanowire lasers and compare our results both to Finite-Difference Time-Domain simulations and to experimental data. Finally, we explore the dependence of the lasing emission on the nanowire cavity and on the materials relaxation time.