Search results for "Cena"

showing 10 items of 362 documents

Stochastic debt sustainability analysis for sovereigns and the scope for optimization modeling

2017

We argue that sovereign debt sustainability analysis must be augmented by stochastic correlated risk factors and a risk measure to capture tail effects. Crisis situations can thus be adequately specified and analyzed with sufficient accuracy to warrant the relevance of policy decisions. In this context there is significant scope for optimization modeling for both strategic planning and operational management. We discuss diverse aspects of the problem of debt sustainability and highlight modeling approaches that can be brought to bear on the problem. Results with the fictitious, but nor unrealistic, Kingdom of Atlantis, which is sinking under excessive debt, illustrate the proposed models.

WarrantStrategic planningControl and OptimizationActuarial scienceScope (project management)050204 development studiesMechanical Engineeringmedia_common.quotation_subjectRisk measure05 social sciencesAerospace EngineeringContext (language use)Financial engineeringRisk analysis (engineering)Settore SECS-S/06 -Metodi Mat. dell'Economia e d. Scienze Attuariali e Finanz.Sovereign debtDebt restructuringRestructuringSustainabilityScenariosPortfolio optimizationCVaRDebt0502 economics and businessSustainabilityEconomics050207 economicsElectrical and Electronic EngineeringSoftwareCivil and Structural Engineeringmedia_commonOptimization and Engineering
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Energy, water and environmental balance of a complex water supply system

2015

The present paper describes the analysis of water and energy balance in a complex urban water supply system. The analysis was carried out employing Life Cycle Analysis (LCA) methodologies. The LCA approach was integrated with the analysis of the system energy and water balance. For a real size water supply system, based on the results of the individual LCAs, the current baseline was constructed highlighting the water, energy and environmental (in terms of CO2eq emissions in the atmosphere) costs of supplied water. Then, three different mitigation measures have been evaluated: the first is based on energy production by installation of photovoltaic systems; the second is based on energy recov…

Water resourcesEnergy recoveryWater conservationWater balancelife cycle assessment scenario analysis potable water supply sanitation urban water systemsbusiness.industryPhotovoltaic systemEnergy balanceEnvironmental engineeringWater supplyEnvironmental sciencebusinessLife-cycle assessmentWIT Transactions on Ecology and the Environment
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La cultura ci salverà? Processi di touristification a base culturale nel centro storico di Palermo

2023

Negli ultimi tre decenni la cultura ha avuto un ruolo chiave nella costruzione delle politiche urbane, divenendo uno strumento decisivo nella definizione delle strategie di sviluppo economico e nell’accesso alla competizione globale che caratterizzano l’attuale regime di neoliberismo urbano (Miles e Paddison 2005). Anche nel sud Europa la cosiddetta rigenerazione a base culturale ha rappresentato e continua ancora oggi a rappresentare una vera e propria ortodossia urbana, che trova nel turismo tanto una ragione di esistenza quanto un campo di attuazione. In particolare, negli ultimi anni i centri storici di molte città sudeuropee sono stati oggetto di trasformazioni profonde in cui pratiche…

Within this framework Palermo and its historic center are no exception. The epicenter of these processes is represented here by the Kalsa district which since the early 2000s has been placed at the center of a precise strategy of culturally-based renewal called to drive the city's tourist renaissance (Vinci 2008). The culmination of this path came in 2018 when Palermo was named the Italian capital of culture and chosen as the venue for Manifesta one of the most prestigious traveling biennales of contemporary art. However the exponential increase in tourist arrivals in the last three years came to a halt with the outbreak of the pandemic which showed with unprecedented evidence the contradictions of the development strategies pursued in the historic center and the marks they leave on the territories. While this sudden interruption seems to offer an opportunity to radically rethink urban and cultural policies and find new curbs to the conditions of overtourism in which the historic centers of South European cities and beyond find themselves it could also prove to be an accelerator of the dynamics of commodification of these spaces representing the revival of tourism an easy escape route in times of crisis. The objective of this contribution is to critically explore the urban and social transformations that have crossed the Kalsa district of Palermo from the 2000s to the present using qualitative and quantitative techniques (analysis of statistical data in-depth interviews critical discourse analysis ...) with particular reference to the role that culture has played in these processes. While it is impossible to prefigure post-pandemic scenarios we will examine documents and discourses that trace possible development directions for South European cities and their historic centers.Settore ICAR/21 - UrbanisticaSettore M-GGR/01 - Geografia
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How could hydro-climatic conditions evolve in the long term in West Africa? The case study of the Bani River catchment

2011

International audience; This paper assesses the future variability of water resources in the long term over a large Sudano- Sahelian catchment in West Africa. Flow simulations were performed with a daily conceptual model. The climate models HadCM3 and MPI-M (based on SRES-A2) were used to provide future climate scenarios over the catchment. Outputs from these models were used to generate daily rainfall and temperature series for the 21st century according to: (i) application of the unbias and delta methods, and (ii) spatial and temporal downscaling. A temperature-based formula was used to calculate present and future potential evapotranspiration (PE). The daily rainfall and PE series were i…

[SDE.MCG] Environmental Sciences/Global Changes[ SDE.MCG ] Environmental Sciences/Global Changes[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology[SDE.MCG]Environmental Sciences/Global ChangesWest Africahydro-climatic variabilityRiver Baniclimatic scenarios[ SDU.STU.CL ] Sciences of the Universe [physics]/Earth Sciences/Climatologyhydrological modelling
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Ex Ante evaluation of gene flow in oilseed rape with cropping system models

2013

Chapitre 4; Oilseed rape (OSR) genes can escape fields in space via pollen and seeds, and in time via volunteers resulting from seeds lost before or during oilseed rape harvest. When varieties co-exist, e.g. genetically-modified (GM) and non-GM varieties, this spatio-temporal gene flow can lead to the adventitious presence of GM seeds in non-GM harvests and thus cause financial losses for farmers and cooperatives. Gene flow depends on crop locations, succession, and management, as well as the location and management of semi-natural areas such as roadverges. The objective of this investigation was to present a simulation methodology using the spatially-explicit cropping system model GENESYS …

[SDE] Environmental Sciencesmodelcropping system modeloilseed rapegenesysrisk analysis[SDV]Life Sciences [q-bio]interactionlandscapecropping systemlabelling threshold[SDV] Life Sciences [q-bio]prospective scenariosvolunteers[SDE]Environmental Sciencesex ante evaluation[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologygene flow
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Les enjeux et les caractéristiques de l’autobiographie féminine au XXe siècle

2020

Quelle est la valeur du choix de l’écriture autobiographique dans le parcours littéraire des trois écrivains : Simone de Beauvoir, Nathalie Sarraute et Marguerite Yourcenar ? L’étude des enjeux et des caractéristiques de l’autobiographie féminine au XXe siècle permet de mettre en valeur les ambivalences de l’écriture de soi en tenant compte de l’impact des composantes psychologiques, historiques et sociales dans la détermination de l’écriture autobiographique de la « génération Beauvoir ».

[SHS.LITT] Humanities and Social Sciences/LiteratureBeauvoir (Simone de)Yourcenar (Marguerite)Sarraute (Nathalie)autobiographie féminine
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El convento de carmelitas descalzos de San José de Uclés (1594-1611). Una obra inédita de Fray Alberto de la Madre de Dios

2022

El convento de carmelitas descalzos de Uclés (Cuenca) ha pasado hasta ahora prácticamente inadvertido por la historiografía artística. El estado ruinoso que presenta desde el siglo XIX y la falta de documentación sobre el mismo ha impedido un análisis en profundidad sobre este interesante ejemplo conventual, cuyas obras se llevaron a cabo durante la llamada etapa de homogenización de los modos arquitectónicos carmelitanos. El presente artículo expone el proceso de fundación y patrocinio del convento por parte de la familia de los Velázquez desde Uclés y desde Nueva España. Además, aporta documentación inédita que constata la participación como trazadores del mismo de los monjes carmelitas f…

abadía del sacro monteVisual Arts and Performing Artsmecenazgo“UNESCO:HISTORIA”pedro de ávilagranadaArs Longa. Cuadernos de arte
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Akciju tirgus cenu prognozēšana, izmantojot slēptos Markova modeļus

2017

Bakalaura darba pētāmā problēma ir slēpto Markova modeļu pielietojums akciju tirgus cenu prognozēšanai. Darbs ir veltīts slēpto Markova modeļu un to galveno pamatproblēmu izpētei un risināšanai, kā arī akciju tirgus cenu prognozēšanai trīs uzņēmumu akcijām, izmantojot gan slēptos Markova modeļus ar diviem slēptajiem stāvokļiem, gan ar trīs slēptajiem stāvokļiem. Katra uzņēmuma prognožu precizitātes ir salīdzinātas, izmantojot vidējo absolūto procentuālo kļūdu un izveidojot grafisku attēlojumu, salīdzinot reālās akciju cenas ar iegūtajām prognozētajām akciju cenām. Datu analizēšanai un aprēķiniem izmantota programma Microsoft Excel, kā arī statistisko aprēķinu programma R.

akciju cenasMatemātikaprognozesakciju tirgusslēptie Markova modeļi (SMM)
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Estabilidad de antocianinas durante el almacenamiento de jugos de arándanos

2016

Resumen: Antecedentes: Los arándanos y productos de arándano tienen alto valor nutricional, especialmente por su alto contenido de antocianinas. Estas son potentes antioxidantes y poseen alta capacidad de secuestrar radicales libres. Así, los arándanos y productos de arándanos han resultado atractivos para los consumidores interesados en alimentos funcionales. Sin embargo, los tratamientos térmicos y posterior almacenamiento de productos alimenticios influyen en el contenido de antocianinas. La cinética de degradación de las antocianinas puede ser evaluada desde una perspectiva termodinámica, basada en funciones como energía libre, entalpía, entropía y energía de activación. Objetivos: Se e…

almacenamiento de jugos de arándanos04 agricultural and veterinary sciencesTP368-456040401 food scienceApplied Microbiology and BiotechnologyFood processing and manufacture0404 agricultural biotechnologyEstabilidad de antocianinasEstabildad de antocianinascinética de degradaciónAlimentsHD9665-9675Pharmacology Toxicology and Pharmaceutics (miscellaneous)Pharmaceutical industryFood Science
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Ocena ścieków browarnianych w wybranych punktach linii technologicznej

2016

Źródłem ścieków browarnianych są: warzelnia, fermentownia, leżakownia, rozlewnia oraz miejsce mycia opakowań. W zależności od etapu produkcyjnego ścieki te cechują zróżnicowane parametry mikrobiologiczne i fizykochemiczne. Ze względu na dużą zawartość substancji organicznych mogą one stanowić pożywkę dla różnych grup mikroorganizmów. Celem badań była ocena mikrobiologiczna ścieków browarnianych w trzech różnych punktach linii technologicznej ze szczególnym uwzględnieniem obecności mikroorganizmów potencjalnie chorobotwórczych. Materiał badawczy stanowiły ścieki pobrane z komór zbierających ścieki 1 i 2 oraz kolektora przy wylocie do rzeki. Badania mikrobiologiczne obejmowały oznaczenia ogól…

analiza fizykochemicznabrewery wastewatermicrobiological assessmentocena mikrobiologicznaścieki browarnianephysicochemical analysisProceedings of ECOpole
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