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A common risk factor in global credit and equity markets: An exploratory analysis of the subprime and the Sovereign-Debt crises
Corzo Santamaría, María Teresa; Lazcano Benito, Laura; Márquez Vigil, Javier; Gismera Tierno, Laura; Lumbreras Sancho, Sara (2020-06-01)This paper investigates the existence of a common risk factor across asset classes and geographical areas, focusing on the crises and post-crisis periods. This factor has important implications for diversification in ... -
A complex-network approach to the generation of synthetic power transmission networks
Espejo González, Rafael; Lumbreras Sancho, Sara; Ramos Galán, Andrés (2019-09-01)The application of complex-network techniques to the analysis of power grids can provide interesting complementary insights into power studies such as the generation of synthetic power grids. Synthetic power grids are ... -
A decentralized solution for transmission expansion planning: getting inspiration from nature
Lumbreras Sancho, Sara; Wogrin, Sonja; Navarro Llevat, Guillermo; Bertazzi, Ilaria; Pereda García, Maria (2019-12-01)Transmission expansion planning is a problem of considerable complexity where classical optimization techniques are unable to handle large case studies. Decomposition and divide-and-conquer strategies have been applied to ... -
A parabolic predictor for more efficient calculation of total transfer capability
Echavarren Cerezo, Francisco; Rouco Rodríguez, Luis; Urretavizcaya Tato, Marta; Lumbreras Sancho, SaraTotal Transfer Capability (TTC) is defined as the amount of electric power that can be transferred between two interconnected transmission networks under some established security system conditions such as maximum power ... -
A parabolic predictor for more efficient calculation of total transfer capability
Echavarren Cerezo, Francisco; Rouco Rodríguez, Luis; Urretavizcaya Tato, Marta; Lumbreras Sancho, Sara (Institute of Electrical and Electronics Engineers Power and Energy Society; Universidad Pontificia C (Madrid, España), 2021-07-29)Total Transfer Capability (TTC) is defined as the amount of electric power that can be transferred between two interconnected transmission networks under some established security system conditions such as maximum power ... -
A progressive contingency incorporation approach for stochastic optimization problems
Lumbreras Sancho, Sara; Ramos Galán, Andrés; Cerisola Lopez De Haro, Santiago (2013-05-01)Reliability is a key objective in many optimal design problems. Very often this criterion is incorporated into stochastic optimization problems by introducing contingency evaluation scenarios. This results in a special ... -
Alpha-1 antitrypsin gene variants in patients without severe deficiency diagnosed with pulmonary emphysema on chest CT
Laviña Soriano, Eduardo; Lumbreras Sancho, Sara; Bravo Quiroga, Lara; Soriano Ortiz, Joan B.; Izquierdo Alonso, José L; Rodriguez Gonzalez-Moro, José Miguel (2024-12-31)Introduction: Although pulmonary involvement due to alpha-1 antitrypsin (AAT) deficiency has been widely described, most studies focus on the genotypes causing severe deficiency (< 60 mgdL).Objective: The aim of this study ... -
An extended metric for the analysis of power-network vulnerability: the line electrical centrality
Espejo González, Rafael; Lumbreras Sancho, Sara; Ramos Galán, Andrés; Huang, Tao; Bompard, EttorePower networks are highly vulnerable to deliberate attacks. Whilst power-network design usually considers the protection of the system against networkcomponent failure, it does not consider the protection against deliberated ... -
An extended metric for the analysis of power-network vulnerability: the line electrical centrality
Espejo González, Rafael; Lumbreras Sancho, Sara; Ramos Galán, Andrés; Huang, Tao; Bompard, Ettore (Institute of Electrical and Electronics Engineers Power and Energy Society; Politecnico di Milano (Milán, Italia), 2019-06-23)Power networks are highly vulnerable to deliberate attacks. Whilst power-network design usually considers the protection of the system against networkcomponent failure, it does not consider the protection against deliberated ... -
Analysis of transmission-power-grid topology and scalability, the European case study
Espejo González, Rafael; Lumbreras Sancho, Sara; Ramos Galán, Andrés (2018-11-01)Topological analyses are crucial when assessing network robustness or generating synthetic power grids. In the case of synthetic power grids, topological considerations may be included during the generation process or they ... -
As a leader, you need to set your value agenda. Here’s why.
Lumbreras Sancho, Sara -
Automatic selection of candidate investments for transmission expansion planning
Lumbreras Sancho, Sara; Ramos Galán, Andrés; Sánchez Martín, Pedro (2014-07-01)This paper deals explicitly with the problem of proposing candidate lines (sometimes referred to as technical alternatives) for Transmission Expansion Planning (TEP). Candidate lines have been traditionally regarded as ... -
Better transmission networks for a smarter global system
Lumbreras Sancho, Sara; Ramos Galán, Andrés (Elsevier Ltd. (Londres, Reino Unido), 2019-04-24) -
Can AI help us to understand belief? Sources, advances, limits, and future directions
Vestrucci, Andrea; Lumbreras Sancho, Sara; Oviedo, Lluis (2021-09-01)The study of belief is expanding and involves a growing set of disciplines and research areas. These research programs attempt to shed light on the process of believing, understood as a central human cognitive function. ... -
Can computational intelligence model phenomenal consciousness?
Garrido Merchán, Eduardo César; Lumbreras Sancho, Sara (2023-08-01)Consciousness and intelligence are properties that can be misunderstood as necessarily dependent. The term artificial intelligence and the kind of problems it managed to solve in recent years has been shown as an argument ... -
Characteristics and prognosis of COVID-19 in patients with COPD
Graziani Noriega, Desirée; Soriano Ortiz, Joan B.; del Río Bermúdez, Carlos; Morena Valles, Diego Diego; Díaz Perdigón, Teresa; Castillo García, María; Alonso Rodriguez, Miguel; Ancochea Bermúdez, Julio; Lumbreras Sancho, Sara; Izquierdo Alonso, José L (2020-10-01)Patients with COPD have a higher prevalence of coronary ischemia and other factors that put them at risk for COVID-19-related complications. We aimed to explore the impact of COVID-19 in a large population-based sample of ... -
Chronic respiratory diseases as a risk factor for Herpes Zoster infection
Morena Valles, Diego Diego; Lumbreras Sancho, Sara; Rodriguez Gonzalez-Moro, José Miguel; Campos Pérez, Carolina; Castillo García, María; Benavent Núñez, María; Izquierdo Alonso, José L (2023-12-01)Introduction Herpes zoster (HZ) is a condition that results from the reactivation of the varicella zoster virus (VZV). Several diseases have been reported to increase the risk of developing HZ and postherpetic neuralgia ... -
Clinical characteristics and prognostic factors for Crohn’s disease relapses using natural language processing and machine learning – a pilot study
Gomollón García, Fernando; Pérez Gisbert, Javier; Guerra Marina, Iván; Plaza Santos, Rocío; Pajares Villarroya, Ramón; Moreno Almazán, Luis; López Martín, Mª Carmen; Domínguez Antonaya, Mercedes; Vera Mendoza, María Isabel; Aparicio, Jesús; Martínez, Vicente; Tagarro García, Ignacio; Fernández Nistal, Alonso; Lumbreras Sancho, Sara; Maté Ruiz, Claudia; Montoto, Carmen (2022-04-01)Background The impact of relapses on disease burden in Crohn’s disease (CD) warrants searching for predictive factors to anticipate relapses. This requires analysis of large datasets, including elusive free-text annotations ... -
Closed-loop two-stage stochastic optimization of offshore wind farm collection system
Pérez Rúa, Juan Andrés; Lumbreras Sancho, Sara; Ramos Galán, Andrés; Cutululis, Nicolaos AntonioA two-stage stochastic optimization model for the design of the closed-loop cable layout of an Offshore Wind Farm (OWF) is presented. The model consists on a Mixed Integer Linear Program (MILP) with scenario numeration ... -
Commodification separated us from nature, from each other and from ourselves. Can technology bring us back together?
Lumbreras Sancho, Sara (2019-04-03)Commodification is «the transformation of goods, services, ideas and people into standardized objects of trade». The establishment of an unsustainable economic system has long been linked to the commodification of nature. ...