177,992 research outputs found

    Be stupid for successful living

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    Il libro presenta lo sviluppo della storia imprenditoriale di Renzo Rosso, il fondatore del gruppo Diesel e gli insegnamenti che possono essere tratti da tale storia. In particolare il libro si concentra sulla innovazione imprenditoriale e sulla diversificazione geografica e settoriale

    Plano de ação para melhoria do clima organizacional de uma empresa do ramo da construção civil

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    TCC (graduação) - Universidade Federal de Santa Catarina, Centro Sócio Econômico, Curso de Administração.0 presente trabalho acadêmico tem como propósito elaborar um Plano de Ação, baseado na Pesquisa de Clima Organizacional realizada em 2002, para ser adotado na Construtora Corbetta com intuito de alcançar os objetivos traçados. Para tanto, foi realizado um diagnóstico situacional onde entre outras coisas foram apresentados seus pontos fortes e fracos, focando especificamente os canteiros de obras da construtora estudada. De acordo com as fraquezas apresentadas foi definida a missão da empresa, formulado novos objetivos, estabelecidas as estratégias e elaborado o plano de ação propriamente dito. Devido a este procedimento, as Wes elaboradas conseguiram uma convergência plena com os objetivos da empresa. As constatações a que se chega o trabalho é a necessidade de uma análise financeira para conhecer a real possibilidade de algumas ações propostas, visto que a maioria delas não implica em gasto algum à empresa

    L'osservatorio AUB

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    Il saggio presenta sinteticamente le principali risultanze dell'osservatorio AUB che monitora annualmente circa tremila imprese familiari italiane

    Direct Democracy and Scapegoats: The Five Star Movement and Europe

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    Italy is one the most europhile countries in the European Union. Nevertheless, as surveys show, over the last few years anti-European sentiments have increasingly surfaced among Italian citizens. Furthermore, there is now an important novelty regarding the relation between Italy and Europe: the Movimento 5 Stelle (The Five Star Movement), a new party that expresses a peculiar and contradictory position towards Europe. Its leader, Beppe Grillo, sometimes advocates more, not less, unification, but he also proposes a referendum on Italian membership of the euro. Moreover, Grillo’s blog frequently lends its voice to the choir of openly anti-European sentiment. Indeed, Grillo’s call for direct democracy is plebiscitarian and his positions contribute to the weakening of a European project that is already facing grave difficulties of its own

    Left or right? The complex nature and uncertain future of the 5 Stars Movement

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    L'articolo analizza punti di forza e di debolezza del Movimento 5 stelle. In particolare, si sofferma sulla fusione presente al suo interno tra elementi provenienti dalle culture di sinistra ed elementi provenienti dalle culture di destra. La previsione dell'articolo è che nel lungo periodo la sovrapposizione di elementi ideologici così diversi impedirà al partito di sviluppare una coerente azione politica e porterà all'emergere delle sue contraddizioni organizzative

    The primaries of the center-left. Only a temporary success?

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    "The article describes the primaries held by the Italian centre left in 2012 to choose its candidate for the premiership. After a short history of previous primaries and ‘pseudo’-primaries (national contests to choose the party secretary) held by the centre left (or by its main party), the article deals with the internal debate about whether or not to hold primaries and about the rules that would govern them. The article proposes looking at this debate in a ‘realistic’ way, as a struggle between political actors fighting to conquer or maintain power. The third section analyses the results. The data presented show a large increase in turnout in the North and in the ‘Red Belt’ and a decrease in the South. The article sketches some hypotheses to explain these variations, discussing in particular the relevance of social capital. The conclusions consider the contest as a temporary success for the centre left: it attracted great media attention and had a conditioning effect on voter intentions, but did not lead to the definitive institutionalisation of primaries"

    Physics-based modeling and data representation of pairwise interactions among pedestrians

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    In this work we study pedestrian-pedestrian interactions from observational experimental data in diluted pedestrian crowds. While in motion, pedestrians continuously adapt their walking paths trying to preserve mutual comfort distances and to avoid collisions. Leveraging on a high-quality, high-statistics data set, composed of several few millions real-life trajectories acquired from state-of-the-art observational experiments (about 6 months of high-resolution pedestrian tracks acquired in a train station), we develop a quantitative model capable of addressing interactions in the case of binary collision avoidance. We model interactions in terms of both long-range (sight based) and short-range (hard-contact avoidance) forces, which we superimpose on our Langevin model for noninteracting pedestrian motion [Corbetta, Phys. Rev. E 95, 032316 (2017)2470-004510.1103/PhysRevE.95.032316] (here further tested and extended). The model that we propose here features a Langevin dynamics with fast random velocity fluctuations that are superimposed on the slow dynamics of a hidden model variable: the intended walking path. In the case of interactions, social forces may act both on the intended path and on the actual walked path. The model is capable of reproducing quantitatively relevant statistics of the collision avoidance motion, such as the statistics of the side displacement and of the passing speed. Rare occurrences of actual bumping events are also recovered. Furthermore, comparing with large data sets of real-life tracks involves an additional computational challenge so far neglected: identifying automatically, within a database containing very heterogeneous conditions, only the relevant events corresponding to binary avoidance interactions. In order to tackle this challenge, we propose a general approach based on a graph representation of pedestrian trajectories, which allows us to effectively operate complexity reduction for efficient data classification and selection

    Il voto delle donne dalla Prima alla Seconda repubblica

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    Analisi del comportamento elettorale delle donne in Italia nelle elezioni politiche dal 1968 al 2006. Si dimostra la trasformazione del voto femminile, e la progressiva scomparsa della sua differenziazione da quello maschile. Fino alle elezioni degli anni '90 il voto femminile era spostato nettamente più verso il centro-destra di quello maschile; questa diversità è oggi quasi totalmente azzerata; accade anzi che nelle giovani generazioni le donne risultino più a sinistra dei coetanei maschi

    Role of homeostatic plasticity in critical brain dynamics following focal stroke lesions

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    Can focal brain lesions, such as those caused by stroke, disrupt critical brain dynamics? What biological mechanisms drive its recovery? In a recent study, we showed that focal lesions generate a sub-critical state that recovers over time in parallel with behavior (Rocha et al., Nat. Commun. 13, 2022). The loss of criticality in a cohort of stroke patients was associated with structural brain disconnections, while its recovery was accompanied by the re-modeling of specific white-matter tracts. These results were challenged by Janarek et al. (Sci. Rep. 13, 2023), who proposed an alternative interpretation for the anomalous monotonic decaying of the second cluster size, which is the neural signature originally used to infer loss of criticality. The present study tackles this controversy and provides evidence that the theoretical framework proposed by Janarek et al. cannot explain the anomalous cluster dynamics observed in our patients. Notably, this invalidates the claim that the brain maintains its critical dynamics regardless of the lesion severity. In addition, we explore biological mechanisms beyond white-matter remodeling that may facilitate the recovery of criticality over time. We considered two distinct scenarios: one where we suppress homeostatic plasticity, and another where we increase the excitability of brain regions. We find that suppressing homeostatic plasticity - specifically, the inhibition-excitation balance - disfavors the emergence of criticality. Conversely, increasing brain excitability can help to restore criticality when the latter is disrupted. Our results suggest that normalizing the excitation-inhibition balance is crucial for supporting recovery of critical brain dynamics
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