Search Results - "Merchan, Daniel"
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Designing multi-tier, multi-service-level, and multi-modal last-mile distribution networks for omni-channel operations
Published in European journal of operational research (01-11-2021)“…•We consider strategic design of last-mile distribution networks for e-commerce operations with multiple time-differentiated delivery services and multiple…”
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Integrating collection-and-delivery points in the strategic design of urban last-mile e-commerce distribution networks
Published in Transportation research. Part E, Logistics and transportation review (01-11-2019)“…•We consider multi-echelon distribution networks with the use of collection-and-delivery points.•We formulate a non-linear optimization model that includes CDP…”
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An empirical validation and data‐driven extension of continuum approximation approaches for urban route distances
Published in Networks (01-06-2019)“…We introduce a data‐driven extension to continuum approximation (CA)‐based methods used to predict urban route distances. This extension efficiently…”
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Quantifying the impact of urban road networks on the efficiency of local trips
Published in Transportation research. Part A, Policy and practice (01-05-2020)“…City-level circuity factors have been introduced to quantify and compare the directness of vehicular travel across different cities. While these city-level…”
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Feasibility of using rural waste products to increase the denitrification efficiency in a surface flow constructed wetland
Published in Journal of hydrology (Amsterdam) (01-11-2019)“…•Maize stubble, wheat hay and animal compost are able to induce denitrification.•Laboratory calculated ε15N and ε18O allowed to estimate field-scale…”
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Using GPS data to explore speed patterns and temporal fluctuations in urban logistics: The case of São Paulo, Brazil
Published in Journal of transport geography (01-04-2019)“…Large-scale urban sensing data, such as vehicle global positioning system (GPS) traces, are emerging as an important data source for urban planning. However,…”
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Impacts of agricultural irrigation on nearby freshwater ecosystems: The seasonal influence of triazine herbicides in benthic algal communities
Published in The Science of the total environment (15-01-2015)“…A small hydrological basin (Lerma, NE Spain), transformed from its natural state (steppe) to rain-fed agriculture and recently to irrigation agriculture, has…”
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Climate change and the water cycle in newly irrigated areas
Published in Environmental monitoring and assessment (01-02-2015)“…Climate change is affecting agriculture doubly: evapotranspiration is increasing due to increments in temperature while the availability of water resources is…”
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Shifts in crane migration phenology associated with climate change in southwestern Europe
Published in Avian conservation and ecology (01-06-2020)“…Gallocanta lagoon, NE Spain, is one of the main stopover and wintering areas of Common Cranes (Grus grus) migrating through Western Europe. We investigated how…”
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Irrigation agriculture affects organic matter decomposition in semi-arid terrestrial and aquatic ecosystems
Published in Journal of hazardous materials (15-12-2013)“…•Irrigation agriculture accelerated breakdown of organic matter.•Changes were higher in terrestrial than in aquatic ecosystems.•Our results have implications…”
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Using an integrated hydrological model to estimate the usefulness of meteorological drought indices in a changing climate
Published in Hydrology and earth system sciences (13-10-2016)“…Droughts are serious natural hazards, especially in semi-arid regions. They are also difficult to characterize. Various summary metrics representing the…”
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A pracademic framework to strengthen higher education engagement in Ecuador
Published in Development in practice (29-10-2024)Get full text
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Educando en crisis: estudio de las prácticas docentes para implementar los currículos para la emergencia
Published in Revista andina de educación (01-10-2021)“…Este artículo analiza cómo seis docentes fiscales ecuatorianas implementan los currículos para la emergencia. Se adopta una perspectiva teórica que…”
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Grey water footprint as an indicator for diffuse nitrogen pollution: The case of Navarra, Spain
Published in The Science of the total environment (01-01-2020)“…Nitrogen is an essential element for plant growth, while its application and associated pollution is a worldwide concern. Generally, diffuse source pollution…”
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Experiencias de escolarización como espacios de socialización y vínculos de estudiantes venezolanos de instituciones educativas de Guayaquil y Daule, Ecuador
Published in Cardo (07-05-2024)“…La investigación describe las experiencias de socialización y construcción de vínculos presentes en el proceso de escolarización de estudiantes migrantes…”
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NSGA-II simheuristic to solve a multi-objective flexible flow shop problem under stochastic machine breakdowns
Published in Journal of project management (Growing Science) (2024)“…This study proposes a simheuristic that hybridizes NSGA-II with Monte Carlo simulation to address a stochastic flexible flow shop problem featuring stochastic…”
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Comparison between allantochorion membrane and amniotic sac detection by per rectal palpation for pregnancy diagnosis on pregnancy loss, calving rates, and abnormalities in newborn calves
Published in Theriogenology (01-03-2017)“…The objectives of the present investigation were to evaluate the pregnancy diagnosis by detection of either the allantochorion membrane (FMS) or amniotic sac…”
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La influencia de la ética en los procesos de licenciamiento en Guayaquil
Published in Revista Científica Ciencia y Tecnología (30-04-2024)“…El problema principal que aborda este estudio es la mala percepción de ética, eficiencia y calidad de servicio que tiene el usuario sobre las instituciones…”
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Energy Estimation of Last Mile Electric Vehicle Routes
Published 21-08-2024“…Last-mile carriers increasingly incorporate electric vehicles (EVs) into their delivery fleet to achieve sustainability goals. This goal presents many…”
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