584 research outputs found

    A parallel coupled algorithm for the solution of deformable two-body contact problem

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    This work presents a parallel iterative method for numerical solving frictionless contact problem for two elastic bodies. Each iterative step consists of a Dirichlet problem for the one body and a Neumann problem for the other in order to enforce the contact boundary conditions.Peer Reviewe

    Ordocoordinación: cómo organizar 700 estudiantes en un nuevo campus (y no morir en el intento)

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    Since Autumn Term 2017 the Department of Computer Science of the Universitat Politecnica de Catalunya UPC-BarcelonaTech is in charge of teaching ”Fundamentals of Programming” in the new DiagonalBeso ´s Campus, at EEBE School. This new endeavour had to face two particular challenges: First, due to organizing constraints, it had to be organized at the same time it was being first taught. Second, all the numbers involved were large. In effect, in Autumn Term 2017, 686 students enroled, with a teaching staff of 18 instructors, and 108 laboratory tests being prepared. To deal with these challenges, we agreed to coordinate ourselves in a particular way which we name ordocoordination. We define ordocoordation as a flexible and quick particular way of coordination in which teachers generate and agree on a minimum set of rules. It is a bottom-up procedure, requiring taking quick decisions. As a consequence of applying this particular coordination, the number of sent emails has been a large one: in Autumn Term 2017: 350 ×18 = 6300 emails were interchanged. We believe that this approach deserves to be reported, and also that it is relevant to other subjects.A partir del Q1 de 2017 el Departamento de CS de la UPC se ocupa de la docencia de Informática I en el nuevo campus de la EEBE. Dicha docencia ha sido singular en dos aspectos. Primero, hubo que organizarla al mismo tiempo que se impartía. Segundo, todos los números son grandes. En el Q1 de 2017, hubo 686 estudiantes matriculados, 18 docentes y se prepararon 108 exámenes de laboratorio. Para tratar con estas singularidades hemos adoptado una forma de coordinación a la que hemos llamado ordocoordinación. Es una coordinación flexible y rápida en la que los docentes generan y consensúan un conjunto mínimo de reglas. Es de abajo a arriba y requiere una toma de decisiones ágil, por lo que el número de emails ha sido importante. En Q1 de 2017: 350 x 18 = 6300 emails. Creemos que esta aproximación merece ser explicada y que puede ser aplicada a otras asignaturas.Peer ReviewedPostprint (published version

    El trabajo por venir : autogestión y emancipación social

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    Prólogo 11. Capítulo 1. Trabajo y energía. El fin del capitalismo tal como lo conocemos 17. Elmar Altvater. Capítulo 2. La producción para el valor de uso. Los mercados para la sustentación de la vida. Autogestión y mercados 33. Luciana García Guerreiro. Producción y mercados para la vida: una posibilidad emancipadora para el siglo XXI 36. Norma Giarracca. Ejes de la economía indígena: La experiencia de Bolivia 42. Pilar Lizárraga. Producción y mercados desde la comunidad Kolla Tinkunaku 46. Abel Palacios. Los campos de experimentación: la Red de Comercio Justo del Movimiento de Campesinos de Córdoba 48. Natalia Aimar y Pamela Mackey. La globalización y el comercio justo 50. Juan Silva. Comercio Justo desde la Red Tacurú 54. Tamara Perelmuter. Comentarios 55. Capítulo 3. División del trabajo, jerarquía y tecnología. La ciencia como fraude del progreso 59. Andrés Carrasco. £Venimos del pasado o del futuro? 67. Toti Flores. Agronegocios y campesinado: dos sistemas en conflicto 72. Bernardo Mançano Fernandes. Desarrollo campesino y contrato social 76. Carlos Vacaflores. Agricultura, biodiversidad y conocimiento 80. Carlos Vicente. Capítulo 4. Organización laboral: £Qué eficiencia y para qué? Empresas recuperadas: algunos interrogantes Julián Rebón. Criterios de eficiencia y criterios de equidad 90. Miguel Teubal. Empresas recuperadas y políticas públicas 94. Héctor Palomino. Construir trabajo desde la carencia: El Frente Popular Darío Santillán 100. Nahuel Levalli. Gestión obrera y eficiencia. La experiencia de Fasinpat (ex Zanón) 105. Jorge Esparza. La eficiencia como cuestión política. La Asociación Nacional de Trabajadores. Autogestionados 111. Rufino Almeida. Los límites de la autonomía. El Hotel Bauen 114. Fabio Resino Capitulo 5. Ruinas emergentes. Solidaridad y Cooperación en la organización del trabajo. Las diferentes economías de Bolivia 119. Shirley Orozco Ramírez. Resistirse a la desaparición. La experiencia del pueblo mapuche 124. Chacho Liempe. Experiencias cooperativas en Europa y Argentina 136. Gurli Jacobsen. Cuando una cooperativa funciona. El caso CORPICO 142. José Brinati. Comentarios 144. Capítulo 6. Autogestión como desafío. Las Organizaciones autónomas Autonomía no es aislamiento. Reflexiones acerca de la situación actual de los movimientos sociales 151. Ana Esther Ceceña. Recuperar la autonomía es recuperar el Estado 157. Juan Carlos Gipi Fernández. La autogestión como éxodo. El MTD de Solano 169. Neka Jara. El trabajo libre contra la economía política 173. Raúl Zibechi. Bibliografía 180

    Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

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    One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

    Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

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    Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

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    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

    Search for stop and higgsino production using diphoton Higgs boson decays

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    Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass

    Severe early onset preeclampsia: short and long term clinical, psychosocial and biochemical aspects

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    Preeclampsia is a pregnancy specific disorder commonly defined as de novo hypertension and proteinuria after 20 weeks gestational age. It occurs in approximately 3-5% of pregnancies and it is still a major cause of both foetal and maternal morbidity and mortality worldwide1. As extensive research has not yet elucidated the aetiology of preeclampsia, there are no rational preventive or therapeutic interventions available. The only rational treatment is delivery, which benefits the mother but is not in the interest of the foetus, if remote from term. Early onset preeclampsia (<32 weeks’ gestational age) occurs in less than 1% of pregnancies. It is, however often associated with maternal morbidity as the risk of progression to severe maternal disease is inversely related with gestational age at onset2. Resulting prematurity is therefore the main cause of neonatal mortality and morbidity in patients with severe preeclampsia3. Although the discussion is ongoing, perinatal survival is suggested to be increased in patients with preterm preeclampsia by expectant, non-interventional management. This temporising treatment option to lengthen pregnancy includes the use of antihypertensive medication to control hypertension, magnesium sulphate to prevent eclampsia and corticosteroids to enhance foetal lung maturity4. With optimal maternal haemodynamic status and reassuring foetal condition this results on average in an extension of 2 weeks. Prolongation of these pregnancies is a great challenge for clinicians to balance between potential maternal risks on one the eve hand and possible foetal benefits on the other. Clinical controversies regarding prolongation of preterm preeclamptic pregnancies still exist – also taking into account that preeclampsia is the leading cause of maternal mortality in the Netherlands5 - a debate which is even more pronounced in very preterm pregnancies with questionable foetal viability6-9. Do maternal risks of prolongation of these very early pregnancies outweigh the chances of neonatal survival? Counselling of women with very early onset preeclampsia not only comprises of knowledge of the outcome of those particular pregnancies, but also knowledge of outcomes of future pregnancies of these women is of major clinical importance. This thesis opens with a review of the literature on identifiable risk factors of preeclampsia

    Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

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    Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| &lt; 0.03 at 95% confidence level. [Figure not available: see fulltext.

    Search for Physics beyond the Standard Model in Events with Overlapping Photons and Jets

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    Results are reported from a search for new particles that decay into a photon and two gluons, in events with jets. Novel jet substructure techniques are developed that allow photons to be identified in an environment densely populated with hadrons. The analyzed proton-proton collision data were collected by the CMS experiment at the LHC, in 2016 at root s = 13 TeV, and correspond to an integrated luminosity of 35.9 fb(-1). The spectra of total transverse hadronic energy of candidate events are examined for deviations from the standard model predictions. No statistically significant excess is observed over the expected background. The first cross section limits on new physics processes resulting in such events are set. The results are interpreted as upper limits on the rate of gluino pair production, utilizing a simplified stealth supersymmetry model. The excluded gluino masses extend up to 1.7 TeV, for a neutralino mass of 200 GeV and exceed previous mass constraints set by analyses targeting events with isolated photons.Peer reviewe
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