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Article ; Online: LEADER local action groups and inner areas. An Italian case study.

Barone, Vincenzo / Gaeta, Giuseppe Lucio / Ghinoi, Stefano / Silvestri, Francesco

2023 Volume 101, Page(s) 102357

Abstract: In this study we investigate marginality in European rural areas to understand how EU policies for local development can stimulate novel approaches to social innovation and economic growth. The method applied is a Social Network Analysis (SNA) on the ... ...

Abstract	In this study we investigate marginality in European rural areas to understand how EU policies for local development can stimulate novel approaches to social innovation and economic growth. The method applied is a Social Network Analysis (SNA) on the call tenders of an Italian Local Action Group managing the LEADER programme in the Piacentino and Parmense Apennine (Emilia-Romagna). The implementation of the Inner Area Strategy in a part of the LEADER territory (11 out of the 59 municipalities of the LEADER area) allows to verify complementarities, interrelations and overlays between the two development policies.
MeSH term(s)	Humans ; Program Evaluation ; Economic Development ; Policy
Language	English
Publishing date	2023-08-14
Publishing country	England
Document type	Journal Article
ZDB-ID	2013444-7
ISSN	1873-7870 ; 0149-7189
ISSN (online)	1873-7870
ISSN	0149-7189
DOI	10.1016/j.evalprogplan.2023.102357
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Competition and environmental quality as conflicting objectives

Silvestri, Francesco

Economia politica : journal of analytical and institutional economics Vol. 34, No. 3 , p. 491-513

the case of the European municipal waste industry

2017 Volume 34, Issue 3, Page(s) 491–513

Author's details	Francesco Silvestri
Keywords	Competition policy ; Externality ; EU regulation ; Solid waste ; Environmental taxation
Language	English
Publisher	il Mulino
Publishing place	[Bologna]
Document type	Article
ZDB-ID	852322-8 ; 2509755-6
ISSN	1973-820X ; 1120-2890
ISSN (online)	1973-820X
ISSN	1120-2890
Database	ECONomics Information System

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Book ; Online: On the Bike Spreading Problem

Costa, Elia / Silvestri, Francesco

2021

Abstract: A free-floating bike-sharing system (FFBSS) is a dockless rental system where an individual can borrow a bike and returns it anywhere, within the service area. To improve the rental service, available bikes should be distributed over the entire service ... ...

Abstract	A free-floating bike-sharing system (FFBSS) is a dockless rental system where an individual can borrow a bike and returns it anywhere, within the service area. To improve the rental service, available bikes should be distributed over the entire service area: a customer leaving from any position is then more likely to find a near bike and then to use the service. Moreover, spreading bikes among the entire service area increases urban spatial equity since the benefits of FFBSS are not a prerogative of just a few zones. For guaranteeing such distribution, the FFBSS operator can use vans to manually relocate bikes, but it incurs high economic and environmental costs. We propose a novel approach that exploits the existing bike flows generated by customers to distribute bikes. More specifically, by envisioning the problem as an Influence Maximization problem, we show that it is possible to position batches of bikes on a small number of zones, and then the daily use of FFBSS will efficiently spread these bikes on a large area. We show that detecting these zones is NP-complete, but there exists a simple and efficient $1-1/e$ approximation algorithm; our approach is then evaluated on a dataset of rides from the free-floating bike-sharing system of the city of Padova. Comment: Proc. 21st Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2021)
Keywords	Computer Science - Data Structures and Algorithms ; Computer Science - Computational Engineering ; Finance ; and Science ; Computer Science - Machine Learning ; Computer Science - Social and Information Networks ; Mathematics - Optimization and Control
Publishing date	2021-07-01
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Planning sustainable development of local productive systems: A methodological approach for the analytical identification of Ecoregions

Assiri, Marco / Barone, Vincenzo / Silvestri, Francesco / Tassinari, Mattia

Journal of cleaner production. 2021 Mar. 10, v. 287

2021

Abstract: At the local and regional levels, planning for sustainable development rests on the structural peculiarities of territories following a development model that lays its foundations on the notion of the Marshallian industrial district. Recently, this form ... ...

Abstract	At the local and regional levels, planning for sustainable development rests on the structural peculiarities of territories following a development model that lays its foundations on the notion of the Marshallian industrial district. Recently, this form of production organization has been recognized as also featuring an organic agricultural sector, where the creation of ecoregions (or bio-districts) emphasizes the territorial dimension of sustainable development. Nevertheless, whilst ecoregions are acquiring substantial relevance at the international level, a comprehensive methodological approach for their analytical identification is still missing, thereby affecting the ability of policymakers to effectively identify territories suitable to enter an ecoregion. The few studies available on this topic adopt a narrow perspective when identifying ecoregions, considering only the dimensions that are strictly related to organic production and ignoring substantial variables that are able to capture the activities and elements that generate positive externalities and feed the economic, social and environmental life of a potential ecoregion. To fill this gap in the literature, this paper makes two innovative contributions. First, the paper discusses the notion of an ecoregion by stressing its relationship with other territorial features (i.e., environmental, social, and economic) that complement the agricultural dimensions. Second, the paper proposes a comprehensive methodological approach for the analytical identification of ecoregions considering not only the biological and agricultural features of territories but also crucial aspects related to their environmental, social and economic contexts. In this regard, the paper develops a new composite indicator – the Ecoregional Vocation Index (EVI) – to assess the vocation of territories to enter an ecoregion. As an illustrative example, the EVI is employed to analyse 29 municipalities belonging to the area of the Bologna Apennines (Emilia-Romagna region, Italy). The results of the analysis provide a ranking that classifies these municipalities from best to the worst in terms of their suitability to belong to an ecoregion. The results are presented and discussed to show how this methodological approach can be generally employed in sustainable territorial planning to support policymakers and other relevant stakeholders in the participatory processes concerning the creation of ecoregions.
Keywords	agricultural industry ; area ; bologna ; chemical elements ; complement ; dimensions ; ecoregions ; literature ; models ; organic production ; paper ; planning ; stakeholders ; sustainable development ; Italy
Language	English
Dates of publication	2021-0310
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-light
ISSN	0959-6526
DOI	10.1016/j.jclepro.2020.125006
Database	NAL-Catalogue (AGRICOLA)

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Book ; Online: Dimensionality reduction on complex vector spaces for Euclidean distance with dynamic weights

Pellizzoni, Paolo / Moretti, Simone / Silvestri, Francesco

2022

Abstract: The weighted Euclidean norm $\|x\|_w$ of a vector $x\in \mathbb{R}^d$ with weights $w\in \mathbb{R}^d$ is the Euclidean norm where the contribution of each dimension is scaled by a given weight. Approaches to dimensionality reduction that satisfy the ... ...

Abstract	The weighted Euclidean norm $\\|x\\|_w$ of a vector $x\in \mathbb{R}^d$ with weights $w\in \mathbb{R}^d$ is the Euclidean norm where the contribution of each dimension is scaled by a given weight. Approaches to dimensionality reduction that satisfy the Johnson-Lindenstrauss (JL) lemma can be easily adapted to the weighted Euclidean distance if weights are fixed: it suffices to scale each dimension of the input vectors according to the weights, and then apply any standard approach. However, this is not the case when weights are unknown during the dimensionality reduction or might dynamically change. We address this issue by providing an approach that maps vectors into a smaller complex vector space, but still allows to satisfy a JL-like property for the weighted Euclidean distance when weights are revealed. Specifically, let $\Delta\geq 1, \epsilon \in (0,1)$ be arbitrary values, and let $S\subset \mathbb{R}^d$ be a set of $n$ vectors. We provide a weight-oblivious linear map $g:\mathbb{R}^d \rightarrow \mathbb{C}^k$, with $k=\Theta(\epsilon^{-2}\Delta^4 \ln{n})$, to reduce vectors in $S$, and an estimator $\rho: \mathbb{C}^k \times \mathbb{R}^d \rightarrow \mathbb R$ with the following property. For any $x\in S$, the value $\rho(g(x), w)$ is an unbiased estimate of $\\|x\\|^2_w$, and $\rho$ is computed from the reduced vector $g(x)$ and the weights $w$. Moreover, the error of the estimate $\rho((g(x), w)$ depends on the norm distortion due to weights and parameter $\Delta$: for any $x\in S$, the estimate has a multiplicative error $\epsilon$ if $\\|x\\|_2\\|w\\|_2/\\|x\\|_w\leq \Delta$, otherwise the estimate has an additive $\epsilon \\|x\\|^2_2\\|w\\|^2_2/\Delta^2$ error. Finally, we consider the estimation of weighted Euclidean norms in streaming settings: we show how to estimate the weighted norm when the weights are provided either after or concurrently with the input vector.
Keywords	Computer Science - Data Structures and Algorithms
Subject code	519
Publishing date	2022-12-13
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Toward the creation of novel food waste management systems: A network approach

Ghinoi, Stefano / Silvestri, Francesco / Steiner, Bodo

Journal of cleaner production. 2020 Feb. 10, v. 246

2020

Abstract: In light of the global significance of food waste, a greater focus on improving food waste management strategies is called for. Implementing such management strategies requires a better understanding of stakeholder relations. This paper analyses the ... ...

Abstract	In light of the global significance of food waste, a greater focus on improving food waste management strategies is called for. Implementing such management strategies requires a better understanding of stakeholder relations. This paper analyses the structure of multiplex relations among stakeholders involved in the creation of a novel food waste management system, investigating the drivers of network formation when multiple collaborations are observed between pairs of stakeholders. We apply Social Network Analysis to study food waste reduction strategies in the City of Ferrara (Italy). Our results provide support for the practical relevance of multiple interactions across dyadic relationships in stakeholder networks. They also suggest that ‘third parties’ are not necessary for an effective networking strategy, and that relationships between stakeholders of similar levels of expertise are not required for establishing multiple relationships, suggesting that functionally diverse coalitions are of greater practical relevance for food waste management strategies.
Keywords	food waste ; management systems ; novel foods ; social networks ; stakeholders ; waste reduction ; Italy
Language	English
Dates of publication	2020-0210
Publishing place	Elsevier Ltd
Document type	Article
ISSN	0959-6526
DOI	10.1016/j.jclepro.2019.118987
Database	NAL-Catalogue (AGRICOLA)

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Article: Regional development of Circular Economy in the European Union: A multidimensional analysis

Silvestri, Francesco / Spigarelli, Francesca / Tassinari, Mattia

Journal of cleaner production. 2020 May 10, v. 255

2020

Abstract: Within the framework of EU policies and measures to develop the Circular Economy (CE) model, the paper sheds light on a relevant and important topic not so well debated in the literature, i.e. the adoption of CE at the regional level. Our key research ... ...

Abstract	Within the framework of EU policies and measures to develop the Circular Economy (CE) model, the paper sheds light on a relevant and important topic not so well debated in the literature, i.e. the adoption of CE at the regional level. Our key research question is: how do European Regions differ in terms of implementation of the CE? In order to address this question, we build two composite indicators - the Circular Economy Static Index (CESI) and the Circular Economy Dynamic Index (CEDI) - that permitted both a static and a dynamic evaluation of the CE performance of European regions (NUTS 2). This double reading of CE performances has allowed us to classify the European regions into four groups, on the basis of the results of our analysis. The “Never give up” group (1) is characterized by above-median performance for both the composite indicators; this group includes some of the most developed and innovative regions in Europe (including France: Île de France, Belgium: Brabant Wallon, Antwerpen and Région de Bruxelles, Germany: Berlin and Hamburg, and Spain: Catalunya). The group “Satiated and sleepy regions” (2), namely those regions where CESI is performing well, but the CEDI shows low values, incorporates many of the richest regions in Europe, for example, Freiburg, Germany and the Comunidad de Madrid, Spain and includes some of the more developed regions in Italy. The “The best is yet to come” group (3), is characterized by low values for CESI and high performance in CEDI, most of those falling into these groups are regions from Eastern Europe. The “We don’t mind” group (4), is composed of the regions with modest values on both Indexes, and is characterized by the presence of very low performing regions, including the majority of Italian regions. The novelty of this approach with respect to literature and the policy implications of our findings are then discussed.
Keywords	European Union ; circular economy ; issues and policy ; Belgium ; Eastern European region ; France ; Germany ; Italy ; Spain
Language	English
Dates of publication	2020-0510
Publishing place	Elsevier Ltd
Document type	Article
ISSN	0959-6526
DOI	10.1016/j.jclepro.2020.120218
Database	NAL-Catalogue (AGRICOLA)

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Article: Design Dependence of the Interface Structure and Crystalline Order of Organic Semiconductor/Dopant Heterojunctions: Pentacene/C₆₀F₄₈

Silvestri, Francesco / Pithan, Linus / Babuji, Adara / Ocal, Carmen / Barrena, Esther

Journal of physical chemistry. 2021 Feb. 23, v. 125, no. 9

2021

Abstract: Planar and mixed heterojunctions are the common architectures respectively used for contact and bulk doping in organic electronics. Beyond the success of empirical methods, knowing how the incorporation of dopant molecules affects the structural ... ...

Abstract	Planar and mixed heterojunctions are the common architectures respectively used for contact and bulk doping in organic electronics. Beyond the success of empirical methods, knowing how the incorporation of dopant molecules affects the structural properties of the organic semiconductor film is essential for the design optimization of devices with efficient electrical properties. With this aim, we exploit out-of-plane and grazing incidence X-ray diffraction (GIXD) to characterize engineered heterojunctions fabricated on native SiO₂ substrates with pentacene as an organic semiconductor and C₆₀F₄₈ as a dopant. A strong interaction between the two species is inferred, which dramatically influences the crystalline order in the different architectures. While C₆₀F₄₈ crystalline domains orient randomly on the SiO₂ surface, the ulterior deposition of pentacene is demonstrated to induce the orientational order and reorganization of the underlying C₆₀F₄₈. In the inverse architecture, the highly [001]-oriented pentacene film on SiO₂ has a template effect on C₆₀F₄₈, inducing the formation of a face-centered cubic [111]-oriented film and leading to an ordered planar heterostructure. Real-time GIXD reveals the presence of a strained C₆₀F₄₈ layer at the interface with a gradual relaxation and transition to 3D crystallite formation with increasing coverage. When mixed in the bulk by co-evaporation, the dopant adopts an amorphous state, embedded in a polycrystalline pentacene matrix. The interfacial effects reported here would have relevant repercussion on the efficiency of molecular doping, which makes it possible to foresee the establishment of guidelines for device performance improvement through interface engineering.
Keywords	X-ray diffraction ; crystallites ; electronics ; physical chemistry ; semiconductors
Language	English
Dates of publication	2021-0223
Size	p. 5363-5371.
Publishing place	American Chemical Society
Document type	Article
Note	NAL-AP-2-clean
ISSN	1932-7455
DOI	10.1021/acs.jpcc.0c11439
Database	NAL-Catalogue (AGRICOLA)

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Article: A liquid-crystalline non-fullerene acceptor enabling high-performance organic solar cells

Mondelli, Pierluigi / Silvestri, Francesco / Ciammaruchi, Laura / Solano, Eduardo / Beltrán-Gracia, Eduardo / Barrena, Esther / Riede, Moritz / Morse, Graham

Journal of materials chemistry A. 2021 Dec. 7, v. 9, no. 47

2021

Abstract: The use of liquid crystalline (LC) compounds in organic photovoltaics has revealed to be an effective strategy to optimise the bulk heterojunction morphology, repairing structural defects through their self-assembling properties. Nonetheless, the design ... ...

Abstract	The use of liquid crystalline (LC) compounds in organic photovoltaics has revealed to be an effective strategy to optimise the bulk heterojunction morphology, repairing structural defects through their self-assembling properties. Nonetheless, the design of LC materials has mostly been limited to donor molecules in previous reports. Here we introduce a Non-Fullerene Acceptor (NFA), 4TICO, characterised by an improved structural flexibility, which is imparted by the alkoxy sidechain and favours the formation of LC phases at high temperature. This structural polymorphism also occurs in films where the 4TICO is blended with the PBTZT-stat-BDTT-8 polymer. The high-temperature LC polymorph leads to the formation of a smooth surface morphology with fewer structural defects, providing solar cells with an improved short-circuit current (Jₛc) and fill factor (FF), by 14% and 20% respectively. An in-depth investigation of the NFA structural properties in relation to the solar cell performance and charge transport is carried out in comparison to the 4TIC crystalline isomer.
Keywords	isomers ; liquids ; polymers ; solar cells ; solar energy ; temperature
Language	English
Dates of publication	2021-1207
Size	p. 26917-26928.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/d1ta07822d
Database	NAL-Catalogue (AGRICOLA)

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Book ; Online: Municipal waste selection and disposal

Silvestri, Francesco / Ghinoi, Stefano

evidences from Lombardy

(Nota di lavoro / Fondazione Eni Enrico Mattei : Climate Change and Sustainable Development ; 14.2015)

2015

Abstract: This article exploit a data base of 1.522 observations related to Lombardy's municipalities to run a cross sectional estimation of the drivers of MW selection. We find no evidence of a significant correlation between the percentage of selected MW ... ...

Author's details	Francesco Silvestri; Stefano Ghinoi
Series title	Nota di lavoro / Fondazione Eni Enrico Mattei : Climate Change and Sustainable Development ; 14.2015
Abstract	This article exploit a data base of 1.522 observations related to Lombardy's municipalities to run a cross sectional estimation of the drivers of MW selection. We find no evidence of a significant correlation between the percentage of selected MW selection and market variables such as the unit charge for waste management, a result probably affected by the high degree of integration existing in Lombardy among collectors and disposal operators. On the contrary, we discover robust and significant correlation with a set of geographical, socio-economic, and political variables. Among the latter ones, we have a confirmations on the influence of party competition on the percentage of household recycling, with the left wing ruling parties more addressed to it than the rivals, and on the high correlation existing between MW selection and the implementation of a unit pricing scheme. Other positive correlations with the independent variable are shown by per-capita income, while quite surprisingly the education level of citizens seems to play no role.
Keywords	Solid Waste ; Waste Management ; Fractional Logit Estimation ; Regional Economics
Language	Undetermined
Size	Online-Ressource (17 S.), graph. Darst.
Publisher	Fondazione Eni Enrico Mattei
Publishing place	Milano
Document type	Book ; Online
Database	ECONomics Information System

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