Search results for "network"

Political community resilience in declining rural areas in Finland

2021

Abstract In this article, we study how declining rural communities build political resilience in Finland. Community resilience is an adaptive process through which rural communities try to maintain their viability in changed circumstances. This process does not entail a submissive attitude, but rather active agency and an effort to influence matters concerning the community’s well-being. We focus on the political dimension of resilience by identifying different local tactics that rural communities adopt to promote their own development following municipal mergers. We classify these tactics into three categories: cooperation, conflict and community-led development. The significant difference…

Electrical Safety Analysis in the Presence of Resonant Grounding Neutral

2019

The resonant grounding is one of the possible methods of the system neutral grounding for the medium voltage distribution. IEEE standards do define this grounding configuration, but important advantages and drawbacks of the resonant grounding might not be fully known, due to its rather uncommon application in North America. On the other hand, resonant grounding in Europe is imposed by the increased requirements for power quality, especially for medium-voltage (MV) industrial users, imposed to electric utilities by regulatory authorities, with the purpose to protect the interests of users and consumers. Level of the continuity of the service, magnitude and phase of ground-fault currents, mag…

Optimal Resource Allocation in Multi-Hop Networks: Contention vs. Scheduling

2014

CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) is actually the most used method in ad-hoc networks for transmitting on a contending medium, even if it shows poor performance in presence of hidden nodes. To increase performance, we propose an algorithm that combines CSMA and TDMA (Time Division Multiple Access) approaches. The adopted solution consists of grouping contending nodes in non-interfering subsets and granting a different numbers of time slots to different groups, while using the CSMA to manage medium access among nodes belonging to the same subset. An optimization procedure to assign the time slots to each subset of nodes and to find an equilibrium between contention …

Spatial source phase : A new feature for identifying spatial differences based on complex-valued resting-state fMRI data

2019

Spatial source phase, the phase information of spatial maps extracted from functional magnetic resonance imaging (fMRI) data by data‐driven methods such as independent component analysis (ICA), has rarely been studied. While the observed phase has been shown to convey unique brain information, the role of spatial source phase in representing the intrinsic activity of the brain is yet not clear. This study explores the spatial source phase for identifying spatial differences between patients with schizophrenia (SZs) and healthy controls (HCs) using complex‐valued resting‐state fMRI data from 82 individuals. ICA is first applied to preprocess fMRI data, and post‐ICA phase de‐ambiguity and den…

Online grocery shopping before and during the COVID-19 pandemic: A meta-analytical review.

2021

The COVID-19 pandemic has forced people to limit their physical interactions, which has led to explosive growth in online grocery shopping. However, there is no clear consensus in the retailing literature on whether consumers prefer to buy groceries online. The objective of this current study is to synthesize research about online grocery shopping published before and during the COVID-19 pandemic and to develop a conceptual framework about online grocery purchase intentions and their determinants, the mediation effects of consumers’ attitudes, the moderating effects of COVID-19, and control variables. The meta-analysis presents data derived from 50 independent samples with a sample size of …

Reti, nuovi settori, sostenibilità: prossime sfide per lo sviluppo regionale

2014

La crisi ha stimolato, in molti ambiti, la scoperta di nuovi paradigmi o la rivalutazione di schemi concettuali che stentavano ad affermarsi. Il volume vuole riflettere su come alcuni di questi nuovi paradigmi (in tema di reti, nuovi settori, sostenibilità) abbiano orientato l’indagine empirica territoriale e raccogliere ed evidenziare le sfide che essi presentano per l’analisi e le politiche regionali.

Retoriche social. Nuove politiche della vita quotidiana

2018

Viviamo immersi in fiumi di parole. La nostra vita quotidiana si è velocemente trasformata nel suo riflesso comunicativo, costituita com’è dalla necessità di dire, dichiarare, raccontare ogni suo anfratto, testualizzandolo sui social network. Questa ansia (ma sarebbe più corretto chiamarla ingiunzione) di essere connessi ha come conseguenza non secondaria quella di allargare lo spettro del politico. Ogni giorno, distribuendo i nostri like in giro per la rete, non facciamo altro che circostanziare, puntualizzare, dire e ridire la nostra identità in relazione a quella degli altri, affiliandola, più o meno consapevolmente, a collettivi eterogenei, che si formano e si riconoscono, funzionano su…

La ricerca Europea sull’OSAS: il network B26.

2007

Measuring the morphology of road networks and built-up surfaces: a mesoscale fractal approach

2012

International audience

Road network characterization to understand city evolution

2021

International audience; Cities combine different kind of processes that drive their evolution. It is of a great interest to understand the effects of different kinds of spatial patterns on those processes, to be able to minimize space consumption and optimize mobility and transportation.In this research, we aim to contribute to the understanding of city evolution by a focus on the road network of the Eastern French city of Dijon’s. Firstly, we select three network indicators that can be used to characterize the city structure as it grows. We apply these indicators to Dijon’s historical road networks from 1650 until 2019. Finally, we discuss how we can use computational simulations of city g…