1,356,754 research outputs found
Electrophysiological Correlates of Stimulus-driven Reorienting Deficits after Interference with Right Parietal Cortex during a Spatial Attention Task: A TMS-EEG Study
Full text linkTMS interference over right intraparietal sulcus (IPS) causally disrupts behaviorally and EEG rhythmic correlates of endogenous spatial orienting before visual target presentation [Capotosto, P., Babiloni, C., Romani, G. L., & Corbetta, M. Differential contribution of right and left parietal cortex to the control of spatial attention: A simultaneous EEG-rTMS study. Cerebral Cortex, 22, 446-454, 2012; Capotosto, P., Babiloni, C., Romani, G. L., & Corbetta, M. Fronto-parietal cortex controls spatial attention through modulation of anticipatory alpha rhythms. Journal of Neuroscience, 29, 5863-5872, 2009]. Here we combine data from our previous studies to examine whether right parietal TMS during spatial orienting also impairs stimulus-driven reorienting or the ability to efficiently process unattended stimuli, that is, stimuli outside the current focus of attention. Healthy volunteers (n = 24) performed a Posner spatial cueing task while their EEG activity was being monitored. Repetitive TMS (rTMS) was applied for 150 msec simultaneously to the presentation of a central arrow directing spatial attention to the location of an upcoming visual target. Right IPS-rTMS impaired target detection, especially for stimuli presented at unattended locations; it also caused a modulation of the amplitude of parieto-occipital positive ERPs peaking at about 480 msec (P3) post-target. The P3 significantly decreased for unattended targets and significantly increased for attended targets after right IPS-rTMS as compared with sham stimulation. Similar effects were obtained for left IPS stimulation albeit in a smaller group of volunteers. We conclude that disruption of anticipatory processes in right IPS has prolonged effects that persist during target processing. The P3 decrement may reflect interference with postdecision processes that are part of stimulus-driven reorienting. Right IPS is a node of functional interaction between endogenous spatial orienting and stimulus-driven reorienting processes in human vision
Plano de ação para melhoria do clima organizacional de uma empresa do ramo da construção civil
Full text linkTCC (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
Emozioni. Il cuore a sinistra
No full textIl ruolo delle emozioni nell'identificazione politica e nelle scelte elettoral
Governance structures in Italian family SMEs
No full textQuesto capitolo offre un'analisi comparativa tra imprese familiari e non di piccola e media dimensione in termini di proprietà e strutture di governance.This chapter offers a comparative study of family versus non-family small and mediumsized
enterprises (SMEs) in terms of ownership and governance issues, and is based on a
survey on 620 incorporated companies of small and medium size.
The survey was started in 2000 and was aimed at making an in-depth exploration of
Italian small and medium-sized enterprises, with a special focus on family firms. Previous
surveys had already analysed family small and medium-sized enterprises in Italy
(Corbetta and Montemerlo, 1999); this survey intended to update some information and
to go deeper into some issues, particularly into ownership and governance in terms of
both structure and evolution. Another goal of the survey was to make some preliminary
tests of different theoretical perspectives. On one side, we wanted to verify whether agency
theory assumptions may apply to small and medium-sized enterprises and not only to
large corporations; on the other side, we maintain that agency is a relevant perspective by
to interpret family small and medium-sized enterprises, but that it is not sufficient and
should be integrated with a relational perspective.
The main findings we obtained confirmed, even at an exploratory level, that both perspectives
are relevant. Family small and medium-sized enterprises are becoming more
complex, especially in terms of ownership,which is increasingly fragmented. Fragmentation
typically brings about differentiation between managing and non-managing owners, which
raises a number of critical topics to be coped with to prevent agency problems, such as
shares’ transfers, dividends, appointment criteria for future leaders, company control
through governance bodies. Family small and medium-sized enterprises do appear to cope
with such topics by sharing rules for ownership and leadership, and by articulating governance
systems. But this is not enough to retain ownership unity, which explains why, in a relational
perspective, unofficial governance bodies such as family councils are used to nurture
trust and shared vision.
First, we present the main theoretical references and the propositions that have been
derived fromboth the agency and the relational perspectives. Then,we illustrate the methods,
sample and data collection. The next section reports main findings. Finally, we discuss such
findings, offering some concluding remarks to researchers and owning families
Sistema penale e "sicurezza pubblica" : le riforme del 2009
No full textIl volume, curato da Stefano Corbetta (magistrato del Tribunale di Milano), Angela Della Bella e Gian Luigi Gatta (ricercatori di Diritto penale nell’Università degli Studi di Milano), si pone l’obiettivo di fornire una guida nella lettura delle novità in materia di diritto penale, processuale penale e penitenziario, apportate da due provvedimenti in materia di sicurezza pubblica: la legge 15 luglio 2009 n. 94 e il d.l. 23 febbraio 2009 n. 11 (conv., con modif., nella l. 23 aprile 2009 n. 38). Come evidenziato nell’ampia introduzione dei proff. Emilio Dolcini e Giorgio Marinucci (ordinari di Diritto penale nell’Università degli Studi di Milano), tali nuovi provvedimenti, sotto l’etichetta della ‘sicurezza pubblica’, disciplinano i fenomeni più eterogenei (l’immigrazione clandestina, la criminalità da strada, la criminalità organizzata, la circolazione stradale, etc.), nel dichiarato intento di placare il sentimento di insicurezza collettiva, diffuso specialmente tra gli strati più deboli della collettività. Il volume, redatto in sinergia da magistrati, avvocati e ricercatori universitari, è suddiviso in tre parti: diritto penale sostanziale, diritto penale processuale e diritto penitenziario.
Quanto alla parte del diritto penale sostanziale, quella interessata dal maggior numero di modifiche, i curatori - per agevolare una lettura altrimenti non facile dei nuovi provvedimenti – hanno scelto di illustrare le numerosissime novità seguendo l’ordine in cui compaiono nel codice penale e, poi, nella legislazione speciale. Nella parte generale del codice, le novità riguardano, tra l’altro, l’introduzione di nuove circostanze aggravanti comuni, la previsione di nuovi limiti delle pene pecuniarie ed un nuovo criterio di ragguaglio tra pena detentiva e pena pecuniaria. Quanto alla parte speciale del codice, oltre all’introduzione di un cospicuo numero di circostanze aggravanti speciali per i delitti contro la persona e il patrimonio, assume particolare rilievo la reintroduzione del delitto di oltraggio a pubblico ufficiale e la previsione di nuove figure di reato, tra cui ad esempio l’art. 612 bis c.p. in materia di atti persecutori (il c.d. stalking).
Nella legislazione complementare, le novità di maggior rilievo riguardano la disciplina penale dell’immigrazione: si pensi all’introduzione del reato di ingresso e soggiorno illegale nel territorio dello Stato (c.d. reato di immigrazione clandestina), nonché alle significative modifiche delle norme relative all’inosservanza dell’ordine di espulsione, al favoreggiamento dell’immigrazione clandestina, alla cessione di immobili allo straniero clandestino. Altre novità, oggetto di puntuale commento, riguardano poi le disposizioni penali del codice della strada e le disposizioni penali in materia di armi, nonché la disciplina delle misura di prevenzione.
Nella seconda parte, dedicata al diritto processuale penale, si segnala il nuovo procedimento speciale avanti al giudice di pace, finalizzato precipuamente ad assicurare un rapido accertamento del nuovo reato di ingresso e soggiorno illegale nel territorio dello Stato, attribuito appunto alla competenza di questo giudice. Tra le altre novità, vengono poi in rilievo l’introduzione di nuove ipotesi di arresto obbligatorio e facoltativo in flagranza di reato; l’ampliamento dei poteri del Procuratore nazionale antimafia.
Quanto al diritto penitenziario, le modifiche oggetto di commento hanno riguardato innanzitutto l’art. 4 bis o.p., disposizione che limita l’accesso alle misure alternative per gli autori dei reati della criminalità organizzata e di altri reati di grave allarme sociale: la disposizione è stata completamente ‘ristrutturata’ e prevede ora, relativamente all’accesso alle misure alternative per gli autori dei reati sessuali, che questo sia subordinato all’osservazione della personalità condotto in istituto per almeno un anno. Rilevanti poi le modifiche in materia di regime detentivo speciale ex art. 41 bis o.p.: oltre ad un deciso allungamento dei termini di durata del regime e all’ulteriore inasprimento delle restrizioni imposte sui detenuti, la novella ha modificato la competenza sui reclami avverso i provvedimenti ministeriali di applicazione e proroga del regime speciale, ora assegnata al Tribunale di sorveglianza di Roma.
Il volume è completato da un’appendice che contiene i testi dei provvedimenti commentati, la lettera del Presidente della Repubblica in occasione della promulgazione della l. n. 94/2009, nonché i pareri del CSM.
I contributi sono di Marco Alma – magistrato del Tribunale di Milano –, Aurelio Barazzetta – magistrato del Tribunale di Milano – , Giorgio Barbuto – magistrato del Tribunale di Milano – , Angelo Caputo – magistrato Ufficio del Massimario presso la Corte di cassazione – , Stefano Corbetta – magistrato del Tribunale di Milano – , Maria Francesca Cortesi – ricercatore di procedura penale presso l’Università degli Studi di Cagliari - , Angela Della Bella – avvocato e ricercatore di diritto penitenziario presso l’Università degli Studi di Milano - , Tommaso Epidendio – magistrato del Tribunale di Milano – , Gian Luigi Gatta – avvocato e ricercatore di diritto penale presso l’Università degli Studi di Milano - , Simone Luerti – magistrato del Tribunale di Milano –, Ilio Mannucci Pacini – magistrato del Tribunale di Milano –, Roberto Pasella – avvocato e ricercatore di diritto penale presso l’Università degli Studi di Milano - , Guido Piffer – magistrato del Tribunale di Milano –, Luca Pistorelli – magistrato Ufficio del Massimario presso la Corte di cassazione – , Marco Scoletta – avvocato e ricercatore di diritto penale presso l’Università degli Studi di Milano -, Sara Turchetti – avvocato e dottoranda di ricerca in diritto penale presso l’Università di Torino
Electrophysiological correlates of stimulus-driven reorienting deficits after interference with right parietal cortex during a spatial attention task: a TMS-EEG study
No full textTMS interference over right intraparietal sulcus (IPS) causally disrupts behaviorally and EEG rhythmic correlates of endogenous spatial orienting before visual target presentation [Capotosto, P., Babiloni, C., Romani, G. L., & Corbetta, M. Differential contribution of right and left parietal cortex to the control of spatial attention: A simultaneous EEG-rTMS study. Cerebral Cortex, 22, 446-454, 2012; Capotosto, P., Babiloni, C., Romani, G. L., & Corbetta, M. Fronto-parietal cortex controls spatial attention through modulation of anticipatory alpha rhythms. Journal of Neuroscience, 29, 5863-5872, 2009]. Here we combine data from our previous studies to examine whether right parietal TMS during spatial orienting also impairs stimulus-driven reorienting or the ability to efficiently process unattended stimuli, that is, stimuli outside the current focus of attention. Healthy volunteers (n = 24) performed a Posner spatial cueing task while their EEG activity was being monitored. Repetitive TMS (rTMS) was applied for 150 msec simultaneously to the presentation of a central arrow directing spatial attention to the location of an upcoming visual target. Right IPS-rTMS impaired target detection, especially for stimuli presented at unattended locations; it also caused a modulation of the amplitude of parieto-occipital positive ERPs peaking at about 480 msec (P3) post-target. The P3 significantly decreased for unattended targets and significantly increased for attended targets after right IPS-rTMS as compared with sham stimulation. Similar effects were obtained for left IPS stimulation albeit in a smaller group of volunteers. We conclude that disruption of anticipatory processes in right IPS has prolonged effects that persist during target processing. The P3 decrement may reflect interference with postdecision processes that are part of stimulus-driven reorienting. Right IPS is a node of functional interaction between endogenous spatial orienting and stimulusdriven reorienting processes in human vision
European way to sovereign funds: a aomparison among CDP, KfW and CDC
No full textEven if founded in different historical periods, Cassa Depositi e Prestiti (hereinafter “CDP”), the German Kreditanstalt fuer Wiederaufbau (hereinafter “KfW”) and the French Caisse del Dépôts et Consignations (hereinafter “CDC”) share their prime mission to serve the national “general interest” supporting and promoting the economic development of their respective countries. All three institutions, in fact, have been established following periods of war and crises with an overall public interest mission. This chapter will have a look at all the angles deemed relevant in order to contextualize the three financial institutions within the current market trends. In particular, a broad analysis of their institutional objectives is provided in the second part, followed by an in-depth description of their ownership and governance structure. Each institution’s functioning model represents the core of the chapter, delving into their portfolio of activities and sources of funding. Part five provides the reader with an examination of CDP, KfW and CDC’s performance related to earnings, capital, asset quality, leverage and cost-efficiency using a vast array of accounting ratios compared over time. Part six is a precise strength and weakness analysis. Part seven concludes
What can we learn from late-onset and occupational asthma?
No full textLate-onset asthma and occupational asthma may provide interesting models of human asthma to compare with the most frequent type of atopic early-onset asthma. The discovery of similarities and discrepancies in the aetiology and pathogenesis of these different diseases might provide new insights on different mechanisms producing the same phenotype and, thus, by recognizing the different underlying mechanisms of the different forms of asthma, may allow better targeting of prevention and treatment. Occupational asthma, in addition to being a late-onset asthma, provides the unique opportunity to study the development of asthma under measurable exposure conditions, and consequently to examine the effect of cessation of exposure which, at variance with allergen avoidance, is possible in most of the cases
\u3ci\u3eFrancesco Corbetta: La Guitarre Royalle\u3c/i\u3e (Carter)
Full text linkA review of Francesco Corbetta: La Guitarre Royalle, album by Carter, William
Physics-based modeling and data representation of pairwise interactions among pedestrians
Full text linkIn 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
- …
