934 resultados para upscale extensions
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
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Thesis submitted in partial fulfillment of the requirements for the Degree of Doctor of Statistics and Information Management
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Dissertação apresentada para obtenção do Grau de Mestre em Engenharia Electrotécnica e de Computadores, pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia
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This report is the outcome of an internship that took place in Centro de Arbitragem Comercial da Câmara de Comércio e Indústria Portuguesa and its completion is an essential part of the path towards obtaining the Master’s Degree in Faculdade de Direito da Universidade Nova de Lisboa. This report has been structured in two stages – firstly, the presentation of the Centro de Arbitragem Comercial, focusing on its field of expertise, organic structure, principles and advantages. Then, the description of the activities developed within the Secretariat over the several stages of the arbitration procedure – since the reception of the arbitration requirement in institutional proceedings, terms of reference in ad hoc procedures, through the monitoring of the arbitral tribunal sessions (preliminary hearings, submission of evidence and final allegations) and the notification of the arbitration award. The second stage of this report is related to the description of the functions and powers of the President of Centro de Arbitragem Comercial. Firstly, it defines those powers by analyzing the statutes and rules of proceedings of the Centro de Arbitragem, drawing comparisons between the above mention and the rules of proceedings of others arbitral institutional centres, some of them are international references. The report assesses and describes the presidential powers, such as: configuration and composition of the arbitral tribunal (including arbitrator’s replacements, excuses and refusals); deadline extensions; determination of procedural rules and decision-making on any procedural incidents which arise before the constitution of the arbitral tribunal; definition of arbitration costs and fees; joinder of parties and consolidation of proceedings admission; and appointment of an emergency arbitrator. Lastly, this report analyzes some decisions delivered by the President in the respective institutional procedures which took place in the Centre.
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This paper extends the model of Spolaore (2004) about adjustments in di erent government systems for the context of scal adjustments and sovereign default. We introduce asymmetry between groups in income and preferences towards scal reforms. Default a ects di erently each group and becomes a possibility if reforms are not enacted after public nance solvency shocks, in uencing the political game according to its likelihood. With the extensions, new situations which were not possible with the previous framework arise. After the exposition of the model, the Argentine default in 2001 provides an example of the political con icts addressed by the model.
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In this work project we study the tail properties of currency returns and analyze whether changes in the tail indices of these series have occurred over time as a consequence of turbulent periods. Our analysis is based on the methods introduced by Quintos, Fan and Phillips (2001), Candelon and Straetmans (2006, 2013), and their extensions. Specifically, considering a sample of daily data from December 31, 1993 to February 13, 2015 we apply the recursive test in calendar time (forward test) and in reverse calendar time (backward test) and indeed detect falls and rises in the tail indices, signifying increases and decreases in the probability of extreme events.
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A review of the history and results of the first eight years of fieldwork of Projeto Flora Amazônica is given. This binational plant collecting program, sponsored by the Conselho Nacional de Desenvolvimento Científico e Tecnológico and the National Science Foundation, has mounted 25 expeditions to many parts of Brazilian Amazonia. Expeditions have visited both areas threatened with destruction of the forest and remote areas previously unknown botanically. The results have included the collection of 32,976 members of vascular plants, 16, 482 of cryptogams, as well as quantitative inventory of 18.67 hectares of forest with the collection of 7,294*** numbers of sterile vouncher collections. The non-inventory collections have been made in replicate sets of 10-13 where possible and divided equally between Brazilian and U.S. institutions. To date, 55 botanists from many different institutions and with many different specialities have taken part with 36 different Brazilian botanists. The resulting herbarioum material is just beginning to be worked up and many nem species have been collected as well as many interesting range extensions and extra material of many rare species.
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This report is the outcome of an internship that took place in Centro de Arbitragem Comercial da Câmara de Comércio e Indústria Portuguesa and its completion is an essential part of the path towards obtaining the Master’s Degree in Faculdade de Direito da Universidade Nova de Lisboa. This report has been structured in two stages – firstly, the presentation of the Centro de Arbitragem Comercial, focusing on its field of expertise, organic structure, principles and advantages. Then, the description of the activities developed within the Secretariat over the several stages of the arbitration procedure – since the reception of the arbitration requirement in institutional proceedings, terms of reference in ad hoc procedures, through the monitoring of the arbitral tribunal sessions (preliminary hearings, submission of evidence and final allegations) and the notification of the arbitration award. The second stage of this report is related to the description of the functions and powers of the President of Centro de Arbitragem Comercial. Firstly, it defines those powers by analyzing the statutes and rules of proceedings of the Centro de Arbitragem, drawing comparisons between the above mention and the rules of proceedings of others arbitral institutional centres, some of them are international references. The report assesses and describes the presidential powers, such as: configuration and composition of the arbitral tribunal (including arbitrator’s replacements, excuses and refusals); deadline extensions; determination of procedural rules and decision-making on any procedural incidents which arise before the constitution of the arbitral tribunal; definition of arbitration costs and fees; joinder of parties and consolidation of proceedings admission; and appointment of an emergency arbitrator. Lastly, this report analyzes some decisions delivered by the President in the respective institutional procedures which took place in the Centre.
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Both culture coverage and digital journalism are contemporary phenomena that have undergone several transformations within a short period of time. Whenever the media enters a period of uncertainty such as the present one, there is an attempt to innovate in order to seek sustainability, skip the crisis or find a new public. This indicates that there are new trends to be understood and explored, i.e., how are media innovating in a digital environment? Not only does the professional debate about the future of journalism justify the need to explore the issue, but so do the academic approaches to cultural journalism. However, none of the studies so far have considered innovation as a motto or driver and tried to explain how the media are covering culture, achieving sustainability and engaging with the readers in a digital environment. This research examines how European media which specialize in culture or have an important cultural section are innovating in a digital environment. Specifically, we see how these innovation strategies are being taken in relation to the approach to culture and dominant cultural areas, editorial models, the use of digital tools for telling stories, overall brand positioning and extensions, engagement with the public and business models. We conducted a mixed methods study combining case studies of four media projects, which integrates qualitative web features and content analysis, with quantitative web content analysis. Two major general-interest journalistic brands which started as physical newspapers – The Guardian (London, UK) and Público (Lisbon, Portugal) – a magazine specialized in international affairs, culture and design – Monocle (London, UK) – and a native digital media project that was launched by a cultural organization – Notodo, by La Fábrica – were the four case studies chosen. Findings suggest, on one hand, that we are witnessing a paradigm shift in culture coverage in a digital environment, challenging traditional boundaries related to cultural themes and scope, angles, genres, content format and delivery, engagement and business models. Innovation in the four case studies lies especially along the product dimensions (format and content), brand positioning and process (business model and ways to engage with users). On the other hand, there are still perennial values that are crucial to innovation and sustainability, such as commitment to journalism, consistency (to the reader, to brand extensions and to the advertiser), intelligent differentiation and the capability of knowing what innovation means and how it can be applied, since this thesis also confirms that one formula doesn´t suit all. Changing minds, exceeding cultural inertia and optimizing the memory of the websites, looking at them as living, organic bodies, which continuously interact with the readers in many different ways, and not as a closed collection of articles, are still the main challenges for some media.
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Miracetyma etimaruyagen. et sp. n. is proposed from the gills filaments of Curimata cyprinoides(Linnaeus, 1758), Potamorhina latior(Spix, 1829) and Psectrogaster essequibensis(Gunther, 1864). The species of the new genus is characterized by having a more complex latching antenna. The claw is greatly reduced and has a groove; the third segment has one or two grooves; the first, second and third segments have one or two cuticular extensions. The legs have pectinate setae and the first endopod is greatly modified, very long, and without setae. The first segment of the first endopod is large, strong and elongate and the second segment is subcylindrical, slender and elongate. These modifications imply in a loss of swimming capacity which is linked to secure fixation on the gill filament. As a result, the leg morphology has evolved other functions.
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The receiver-operating characteristic (ROC) curve is the most widely used measure for evaluating the performance of a diagnostic biomarker when predicting a binary disease outcome. The ROC curve displays the true positive rate (or sensitivity) and the false positive rate (or 1-specificity) for different cut-off values used to classify an individual as healthy or diseased. In time-to-event studies, however, the disease status (e.g. death or alive) of an individual is not a fixed characteristic, and it varies along the study. In such cases, when evaluating the performance of the biomarker, several issues should be taken into account: first, the time-dependent nature of the disease status; and second, the presence of incomplete data (e.g. censored data typically present in survival studies). Accordingly, to assess the discrimination power of continuous biomarkers for time-dependent disease outcomes, time-dependent extensions of true positive rate, false positive rate, and ROC curve have been recently proposed. In this work, we present new nonparametric estimators of the cumulative/dynamic time-dependent ROC curve that allow accounting for the possible modifying effect of current or past covariate measures on the discriminatory power of the biomarker. The proposed estimators can accommodate right-censored data, as well as covariate-dependent censoring. The behavior of the estimators proposed in this study will be explored through simulations and illustrated using data from a cohort of patients who suffered from acute coronary syndrome.
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Dissertação de mestrado em Economia Industrial e da Empresa
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The ATLAS experiment at the LHC has measured the Higgs boson couplings and mass, and searched for invisible Higgs boson decays, using multiple production and decay channels with up to 4.7 fb−1 of pp collision data at √s=7 TeV and 20.3 fb−1 at √s=8 TeV. In the current study, the measured production and decay rates of the observed Higgs boson in the γγ, ZZ, W W , Zγ, bb, τ τ , and μμ decay channels, along with results from the associated production of a Higgs boson with a top-quark pair, are used to probe the scaling of the couplings with mass. Limits are set on parameters in extensions of the Standard Model including a composite Higgs boson, an additional electroweak singlet, and two-Higgs-doublet models. Together with the measured mass of the scalar Higgs boson in the γγ and ZZ decay modes, a lower limit is set on the pseudoscalar Higgs boson mass of m A > 370 GeV in the “hMSSM” simplified Minimal Supersymmetric Standard Model. Results from direct searches for heavy Higgs bosons are also interpreted in the hMSSM. Direct searches for invisible Higgs boson decays in the vector-boson fusion and associated production of a Higgs boson with W/Z (Z → ℓℓ, W/Z → jj) modes are statistically combined to set an upper limit on the Higgs boson invisible branching ratio of 0.25. The use of the measured visible decay rates in a more general coupling fit improves the upper limit to 0.23, constraining a Higgs portal model of dark matter.
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Many extensions of the Standard Model predict the existence of charged heavy long-lived particles, such as R-hadrons or charginos. These particles, if produced at the Large Hadron Collider, should be moving non-relativistically and are therefore identifiable through the measurement of an anomalously large specific energy loss in the ATLAS pixel detector. Measuring heavy long-lived particles through their track parameters in the vicinity of the interaction vertex provides sensitivity to metastable particles with lifetimes from 0.6 ns to 30 ns. A search for such particles with the ATLAS detector at the Large Hadron Collider is presented, based on a data sample corresponding to an integrated luminosity of 18.4 fb−1 of pp collisions at s√ = 8 TeV. No significant deviation from the Standard Model background expectation is observed, and lifetime-dependent upper limits on R-hadrons and chargino production are set. Gluino R-hadrons with 10 ns lifetime and masses up to 1185 GeV are excluded at 95% confidence level, and so are charginos with 15 ns lifetime and masses up to 482 GeV.