Search results for "CITIES"

Molte Palermo. Temi

2019

Nel tema delle incompiute idee di città possibili si riconoscerà il paradigma connotativo dello stesso divenire di Palermo, lungo un percorso millenario di processi di trasformazione nessuno dei quali portato a compimento, in virtù di quel valore distintivo di exemplum che non necessita di ulteriori e conclusive dimostrazioni. Il corso della storia, del resto, ha imposto a Palermo il ciclico riproporsi di destini interrotti. Tale si rilevò l’invenzione della città capitale, quella della “quadratura geometrica e della croce di strade” sovrimpressa a quella archetipica e fondativa della Pan-ormos scambiatrice. E l’incompiutezza sarà il tratto distintivo della città dei rettifili stradali otto…

Urban sprawl and health outcome associations in sicily

2019

Urban sprawl has several negative impacts on the environment, the economy, and human health. The main objective of this work was to formulate and validate a sprawl/compactness index for Sicilian municipalities and evaluate its association with health outcomes. An ecological study was conducted with 110 municipalities in Sicily, Italy. Principal component analysis was adopted to create the sprawl/compactness Sicilian index, and linear regression analysis was used to evaluate the association between the sprawl index and health outcomes. More variance of the new sprawl index was explained by the working factor, followed by density, surface extension, and land use mix. When validating the index…

An Efficient and Secure Multidimensional Data Aggregation for Fog-Computing-Based Smart Grid

2021

International audience; The secure multidimensional data aggregation (MDA) has been widely investigated in smart grid for smart cities. However, previous proposals use heavy computation operations either to encrypt or to decrypt the multidimensional data. Moreover, previous fault-tolerant mechanisms lead to an important computation cost, and also a high communication cost when considering a separate identification phase. In this article, we propose an efficient and secure MDA scheme, named ESMA. Unlike existing schemes, the multidimensional data in ESMA are structured and encrypted into a single Paillier ciphertext and thereafter, the data are efficiently decrypted. For privacy preserving, …

The Gaia-ESO Survey: membership and initial mass function of the. Velorum cluster

2016

Understanding the properties of young open clusters, such as the Initial Mass Function (IMF), star formation history and dynamic evolution, is crucial to obtain reliable theoretical predictions of the mechanisms involved in the star formation process. We want to obtain a list, as complete as possible, of confirmed members of the young open cluster Gamma Velorum, with the aim of deriving general cluster properties such as the IMF. We used all available spectroscopic membership indicators within the Gaia-ESO public archive together with literature photometry and X-ray data and, for each method, we derived the most complete list of candidate cluster members. Then, we considered photometry, gra…

Assessment of Organochlorine Pesticide Residues in West African City Farms: Banjul and Dakar Case Study

2003

Validated analytical procedures for the determination of 21 organochlorine pesticides have been applied to 74 water samples, 76 soil samples, and 160 vegetable samples from nine Sene-Gambian farms. Mean pesticide residue levels found were compared to the results of other studies. The main contaminants were DDTs in water (231.9 ng/L), in soil (71.4 ng/g), and in vegetables (5.03 ng/g). The distribution of pesticide residues in water and neighboring soils and the soil-plant transfer of these pesticides is briefly discussed. Different bioconcentration factors for sum HCHs, sum DDTs, and sum endosulfans obtained in this study allow us to confirm the complex processes already reported in the lit…

Intangibles - enhancing access to cities cultural heritage through interpretation

2013

PurposeThe purpose of this paper is to utilise commodification for the conservation and promotion of cultural heritage in cities by developing interpretative strategies, specifically enabling access to intangible cultural heritage through its tangible parts.Design/methodology/approachIn total, three case studies were conducted in the cities of Amsterdam, Genoa and Leipzig, through a workshop cycle with destination and local tourism stakeholders and citizen representatives, to develop interpretative strategies for the cities.FindingsThe paper identifies tangible and intangible cultural heritage of the three cities, and integrates them into stories and outlines the development of an interpret…

Urban Governance in Latvia: Feeling Urban and Thinking Rural

2019

Urbanisation is affecting not only countries with high number of residents but also with small number. The aim of the research is to explore urbanisation and shrinking city tendencies in a country with small number of residents in the context of globalization and urbanisation. The “donut effect” will be explored in the capital city Riga and ten municipalities nearby. The main research question is to what extent can the classical understanding and perception of urbanisation be applied to small societies and countries, and what kind of effects does the urbanisation create in such dynamically developing countries. There are several interdependent problems, such as the new patterns of urban–rur…

The United Citizens Organization: Public-private partnerships in global governance

2020

Abstract Can Public-Private Partnerships be applied to global affairs and governance? This paper reviews the existing relations between public and private global actors. I argue that current international politics is largely an outcome of these relations. Although for the foreseeable future the role of traditional nation-states on the global scene should not be dismissed, they come under the constant pressure of different private actors, particularly of MNCs and NGOs. If this is the case, the question of global responsibility must be raised. It has been the traditional role of governments to stand for such societal values as security and prosperity, and be responsible for their citizens. Wi…

GIS BASED WEB APPLICATIONS FOR TERRITORIAL ANALYSIS AND VIRTUAL ONLINE FRUITION OF COMPLEX DATASETS

2022

An environmental forensic procedure to analyse anthropogenic pressures of urban origin on surface water of protected coastal agro-environmental wetla…

2013

Detection and spatial distribution of 14 drugs of abuse and 17 pharmaceuticals in surface waters was investigated to determine transport hydrological connectivity between urban, agriculture and natural environments. Solid-phase extraction and liquid chromatography tandem mass spectrometry was applied to all samples. To determine spatial incidence of contaminants, analytical results of target compounds were georeferenced and integrated into a geographical information systems structure together with layers of municipal population, location of sewage water treatment plants and irrigation channels and sectors. The methodology was applied to L'Albufera Natural Park in Valencia (Spain). A total o…