28 research outputs found
Promozione del sistema dei poli di innovazione nello spazio web: analisi dei contenuti e delle reti di relazioni virtuali
Nel progetto di analisi e modellizzazione del sistema regionale dei poli di innovazione in Toscana (www.poliinnovazione.unimore.it), abbiamo esaminato in modo sistematico le informazioni disponibili nei siti web dei poli con due obiettivi: (i) analizzare la varietà di linguaggio e di contenuti che caratterizzano i poli nella loro attività on line; (ii) verificare in che misura i poli facciano riferimento agli stessi enti, imprese, organizzazioni, progetti e, tra questi, alle organizzazioni/o attività direttamente collegate al polo (come ad esempio i soggetti gestori dei poli laboratori, gli incubatori, gli aderenti). Questo articolo presenta nella prima parte l'analisi linguistica dei siti web prodotti dai poli di innovazione ed ha lo scopo di fornire un insieme di variabili per la valutazione delle loro strategie di promozione. Il metro di valutazione principale è l'individuazione della fonte dei materiali pubblicati online dai singoli poli (materiali originali vs. materiali prodotti da terzi), che è stato usato come indicatore del livello di partecipazione di ogni singolo polo nelle strategie di promozione delle proprie attività . Si è quindi cercato di quantificare il livello di coinvolgimento che ogni polo ha espresso – nel proprio sito web – attraverso la pubblicazione di testi. L'analisi è stata condotta utilizzando la metodologia di linguistica dei corpora al fine di svolgere un'indagine sia quantitativa sia qualitativa (simile alla metodologia nota come CADS), ed è stata effettuata prendendo in esame 24 termini relativi ai concetti di innovazione e sviluppo, all'interno dei contenuti web pubblicati dai poli di innovazione (azienda, aziende, centri, collaborazione, conoscenze, finanziamenti, gestione, gestore, impresa, imprese, industriale, innovazione, poli, polo, processi, progetti, progetto, ricerca, servizi, servizio, sviluppo, tecnologia, tecnologie, territorio). Attraverso la valutazione dell'utilizzo dei 24 termini all'interno dei testi web, l'analisi ha evidenziato come le nozioni di innovazione e sviluppo vengano costruite dai singoli poli in termini sia di significato, sia di connotazione. Oltre all'analisi linguistica, l'analisi dei testi web ha consentito anche di individuare in maniera puntuale i domini principali e i link completi citati nei siti web dei poli. Adottando una prospettiva di analisi delle reti di relazioni, con queste informazioni sulle reti virtuali abbiamo analizzato due questioni rilevanti per la modellizzazione del sistema dei poli di innovazione: attraverso le citazioni dei domini principali mettiamo in evidenza in che misura i siti web i poli hanno comunicato le connessioni tra di loro e con i soggetti attivi nel trasferimento tecnologico; attraverso l'analisi dei link completi presenti nei siti web dei singoli poli possiamo individuare in che misura i poli fanno riferimento allo stesso spazio di informazioni. La presentazione è strutturata come segue: nella sezione 1 vengono presentati i dati, gli strumenti e la metodologia utilizzata nell'analisi linguistica; nella sezione 2 viene presentata l'analisi linguistica dei 24 termini selezionati ; nella sezione 3 sono analizzate le reti di relazioni virtuali, la sezione 4 conclude. L'appendice 1 presenta i dettagli tecnici sulla raccolta e successiva pulizia dei dati; l'appendice 2 contiene la lista dei principali link completi presenti all'interno dei siti dei poli presi in esame
Evaluating the performance of innovation intermediaries: insights from the experience of Tuscany’s innovation poles
With the growing importance of innovation intermediaries, particularly in the policy context, a need has emerged for appropriate instruments to evaluate their performance. The identification of appropriate performance indicators, however, has proved to be problematic. First, indicators are likely to influence the behavior of innovation intermediaries, not always in a desirable manner. Second, commonly used indicators focus on the immediate results achieved by the intermediaries, often disregarding the permanent behavioral changes that they can stimulate in their innovation system. Instead, we argue that the latter are particularly important for the evaluation of innovation intermediaries, whose success should be measured in terms of their ability to enable other organizations to improve their innovation capabilities. By focusing on an innovation policy intervention implemented by the Italian region of Tuscany in the period 2007-2013, we discuss the advantages and limitations of the indicators that have been set up by the regional government in order to evaluate the performance of innovation poles, a particular type of innovation intermediary, and discuss some feasible avenues for their improvement
3D Engineering Geological Modeling to Investigate a Liquefaction Site: An Example in Alluvial Holocene Sediments in the Po Plain, Italy
Liquefaction-induced surface manifestations are the result of a complex geological–geotechnical phenomenon, driven by several controlling factors. We propose a multidisciplinary methodological approach, involving engineering geologists, geomorphologists, sedimentologists, and geotechnical engineers, to build a 3D engineering geological model for liquefaction assessment studies. The study area is Cavezzo (Po Plain, Italy), which is a municipality hit by superficial liquefaction manifestations during the Emilia seismic crisis of May–June 2012. The site is characterized by a Holocene alluvial sequence of the floodplain, fluvial channel, and crevasse splay deposits prone to liquefaction. The integration of different geotechnical investigations, such as boreholes, CPTm, CPTu, and laboratory tests, allowed us to recognize potentially liquefiable lithological units, crucial for hazard assessment studies. The resulting 3D engineering geological model reveals a strict correlation of co-seismic surface manifestations with buried silty sands and sandy silts within the shallow 10 m in fluvial channel setting, which is capped and laterally confined by clayey and silty deposits
The diagnostic value of ultrasonography-derived edema of the temporal artery wall in giant cell arteritis: a second meta-analysis
<p>Abstract</p> <p>Background</p> <p>Ultrasonography of temporal arteries is not commonly used in the approach of patients with suspected giant cell arteritis (GCA) in clinical practice. A meta-analysis of primary studies available through April 2004 concluded that ultrasonography could indeed be helpful in diagnosing GCA. We specifically re-examined the diagnostic value of the ultrasonography-derived halo sign, a dark hypoechoic circumferential thickening around the artery lumen, indicating vasculitic wall edema, in GCA.</p> <p>Methods</p> <p>Original, prospective studies in patients with suspected GCA that examined ultrasonography findings of temporal arteries using the ACR 1990 classification criteria for GCA as reference standard, published through 2009, were identified. Only eight studies involving 575 patients, 204 of whom received the final diagnosis of GCA, fulfilled technical quality criteria for ultrasound. Weighted sensitivity and specificity estimates of the halo sign were assessed, their possible heterogeneity was investigated and pooled diagnostic odds ratio was determined.</p> <p>Results</p> <p>Unilateral halo sign achieved an overall sensitivity of 68% (95% CI, 0.61-0.74) and specificity of 91% (95% CI, 0.88-0.94) for GCA. The values of inconsistency coefficient (I<sup>2</sup>) of both sensitivity and specificity of the halo sign, showed significant heterogeneity concerning the results between studies. Pooled diagnostic odds ratio, expressing how much greater the odds of having GCA are for patients with halo sign than for those without, was 34 (95% CI, 8.21-138.23). Diagnostic odds ratio was further increased to 65 (95% CI, 17.86-236.82) when bilateral halo signs were present (sensitivity/specificity of 43% and 100%, respectively). In both cases, it was found that DOR was constant across studies.</p> <p>Conclusion</p> <p>Temporal artery edema demonstrated as halo sign should be always looked for in ultrasonography when GCA is suspected. Providing that currently accepted technical quality criteria are fulfilled, halo sign's sensitivity and specificity are comparable to those of autoantibodies used as diagnostic tests in rheumatology. Validation of revised GCA classification criteria which will include the halo sign may be warranted.</p
Municipal Waste Selection and Disposal: Evidences from Lombardy
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
Individuare e attivare risorse latenti in aree marginali: tra domanda istituzionale e istanze per un progetto di sviluppo rurale / Identify and activate latent resources in marginal areas: a balance between institutional demand and requests for a rural development project
Political debates and agricultural financing policies. Evaluating the crea-tion of Brazil s Pronaf through Discourse Network Analysis
The literature on rural development focuses on the socio-economic effects of agricultural financing, while the process of policy design is devoted less attention. Identifying policy coalitions may help understand the motivations behind a given financing system. Using Discourse Network Analysis, this paper studies the debates preceding the approval of the National Program for Strengthening Family Agriculture (Pronaf) in Brazil in the nineties. This represented a relevant overturn of the previous policy framework. Two coalitions were confronting each other: large farm business associations focused on productivity, and the movements of family farmers aimed at creating credit instruments for small producers. The strong pressure of social movements was paramount for promoting Pronaf. However, findings suggest that the Workers Party, which found itself in a less conflicting position, played a key role in negotiating the introduction of particular measures.
Acknowledgement
Managers' brokerage for business model innovation: A case study
Business model innovation is recognized as a key process for strengthening firms' performance in situations of strong competitive pressure and environmental changes. This process is driven by intra-organizational advice networks between managers, which exchange different types of advice based on organizational learning mechanisms such as cognitive search (how to conceptualize and create a novel business model) and experiential learning (how to adapt and experiment a novel business model. Investigating what are the key figures emerging from such network is essential for an in-depth understanding of the business model innovation process. By focusing on a multi-unit firm operating in the personal care service industry, we use Social Network Analysis (SNA) to examine the brokerage role of managers when sharing different types of advice towards a novel business model. Our results show that middle-level managers connect different managerial groups in different networks; however, differences exist between groups of middle managers, confirming their peculiar nature within organizations
Exploring Networking of Third Sector Organizations: A Case Study Based on the Quartieri Spagnoli Neighborhood in Naples (Italy)
Variation and links among food and energy international prices. An analysis through VAR models from 2000 to 2012.
An adequate understanding of the dynamics that characterize the agri-food market is fundamental for the development
of really efficient economic policies, especially after the two recent hikes in the prices of food commodities. The
econometric literature provides today advanced analysis tools such as VAR models: these models are based on a system
of equations in which each variable is regressed on a set of deterministic variables, on a number of l delays related to
each covariate in the model. To test the effectiveness of this analytical tool at dealing with the issues related to agrifood
economy we applied a VAR analysis on prices of major food and energy commodities (oil and biodiesel) referred
to the period January 2005-December 2012.
Our results identified statistically significant intertemporal relationships between the price of corn, soybeans, rapeseed
and oil, and suggested the direction of these relationships; we could conclude that the price of corn and soybeans are
generated in the energy market only. Moreover, we used as variables the share of commodities used for the production
of biofuels, and we could observe that important alterations on the food market are due to the convenience in producing
ethanol and biodiesel, since the portion of the crops used for energy is in direct competition with that devoted to the
feeding. This kind of models, therefore, deal adequately with datas and issues of the agri-food system and provide an
analytical basis to develop economic policies that take into account the complexity of the global food system