15 research outputs found

    Big data and official data: a cointegration analysis based on Google Trends and economic indicators

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    [EN] In this paper the relationship between the Industrial Production Index (IPI), the confidence index for the manufacturing sector and Google searches for several words linked to the economic situation is explored. In particular, time series referred to the period January 2004 - September 2016 on Italian data. An analysis of significant correlations between the selected indicators is achieved to explore the probable comovements of same. Adding one observation at a time since the first forewarning signs of the 2008 crisis, we find that a few Google searches and the IPI cointegrate, particularly during the strong downward trend leading to January 2009, while there is no cointegration between confidence indicators and the IPI. These results suggest that searches in google and the IPI or the confidence indexes are influenced by common circumstances. Finally forecasts of the IPI obtained through VECM models suggest that the evolution of the IPI can be well represented using the real time Gtrends selected variables.Crosato, L.; Mariani, P.; Marletta, A.; Zavanella, B. (2018). Big data and official data: a cointegration analysis based on Google Trends and economic indicators. En 2nd International Conference on Advanced Reserach Methods and Analytics (CARMA 2018). Editorial Universitat Politècnica de València. 229-235. https://doi.org/10.4995/CARMA2018.2018.8364OCS22923

    Integrated Robot Motion and Process control for manufacturing reshaping

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    The future of metal manufacturing processes like laser cutting, welding, and additive manufacturing shall rely on intelligent systems spearheaded by Industry 4.0. Such a digital innovation is indeed driving machinery builders to a profound transformation. From custom machines designed and optimized for a specific process, the ambition is to exploit the openness and the large availability of industrial robots to increase flexibility and reconfigurability of multi processes implementations. The challenge is that machinery builders transform themselves into high-knowledge specialized process-driven robot integrators, able to optimize the robot motion with the process controller leveraging on intelligent sensing and cognition. The work describes the multi-annual collaboration of the BLM group and Politecnico di Milano, with the support of CNR, focused on the deployment of a complete working robotic workstation characterized by the full integration of the robot control and motion planning with manufacturing processes

    L'altare del dio Bolgolivs dalla Pieve di Santa Maria del Bigolio a Orzivecchi (Bs)

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    The 2018 archeological survey, which was conducted at Pieve near Orzivecchi (Brescia), revealed a diverse array of archeological materials ranging from several historical periods. In particular, an altar dedicated to the indigenous god Bolgolius by Tertius Donnedo Tertulli f. was discovered. According to linguistic theory, the theonym Bolgolius probably has Celtic origins and perhaps has a connection with the god Mercurius

    Design and Pathway Programming of Freeform Thin-walled Geometries Produced by Laser Metal Deposition

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    Laser metal deposition (LMD) shows great promise for producing large components as well as thin-walled structures by additive manufacturing. Compared to the powder bed fusion (PBF) techniques, LMD can exploit further flexibility in terms of tool path programming. Layer-by-layer rastering commonly used in SLM is applicable also to the LMD process, where overhang structures remain a complex issue in the absence of support structures. Concerning thin-walled parts with a symmetry axis or those that evolve around an axis, more efficient strategies may be developed. Hence, this work discusses the use of different part programming strategies for thin-walled structures employing an LMD system based on a 6-axis anthropomorphic robot and a 2-axis rotary table. The work compares, layer-by-layer, continuous pathway, and oriented reference plane strategies, study of process parameters, build failure mechanisms, as well as geometric errors are discussed. Successful deposition of thin-walled organic and freeform tubular components in AISI 316L is demonstrated

    Áreas Residuais de Sistemas Viários: projeto e apropriação pública - Rua Agostinho Rodrigues Filho, bairro Vila Mariana, SP

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    As diversas formas que assumem as cidades brasileiras são, enquanto sistema, resultantes da somatória e inter-relação entre os espaços livres de edificação e edificados, entre as questões de propriedade da terra – pública e privada, entre a aplicação ou não da legislação urbana bem como da materialização de políticas públicas para o incentivo da economia (produção e consumo) além das ideologias vigentes para a produção do espaço urbano. As mudanças na forma de apropriação pública dos espaços destinados à caminhar urbano vem sofrendo alterações nas últimas décadas. Faz-se necessária, portanto, a atualização dos instrumentos de pesquisa associados ao conhecimento do espaço urbano. Esta pesquisa de iniciação científica surgiu a partir de trabalhos realizados pelo escritório modelo do curso de arquitetura e urbanismo do FIAM-FAAM Centro Universitário. Dando andamento aos estudos do Projeto de Pesquisa Sistema de Espaços Livres, parte integrante do programa de mestrado profissional Projeto, Produção e Gestão do Espaço Urbano da mesma instituição de ensino, o objetivo deste trabalho de pesquisa foi o de refletir sobre a forma e as condições físicas ofertadas pelos espaços livres destinados à fruição e apropriação das pessoas com foco em comunidades de bairro, ou ainda, numa escala de projeto local. A partir da aplicação do método de observação urbana de Jan Gehl associado aos instrumentos de análise do Active Design para a realização de diagnóstico e projeto de um sistema de espaços livres composto por áreas residuais urbanas (ruas e glebas) junto à Rua Agostinho Rodrigues Filho, SP. As pesquisas contaram com o suporte metodológico advindo do acordo de cooperação técnica entre a instituição e a organização social Cidade Ativa

    Overexpression of tumor necrosis factor (TNF) alpha and TNFalpha receptor I in human viral myocarditis: clinicopathologic correlations.

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    Proinflammatory cytokines, including tumor necrosis factor (TNF)alpha, have been recognized as important physiopathogenetic factors in the initiation and continuation of inflammatory cardiomyopathies. Experimental and preliminary human studies have demonstrated that TNFalpha plays a crucial role in enteroviral-induced myocarditis. In this study, we investigated the expression of TNFalpha and both its receptors (TNFRI and TNFRII) in both viral and nonviral myocarditis. Myocardial expression of TNFalpha was then correlated with different clinical and pathologic findings. TNFalpha expression was investigated in endomyocardial biopsies obtained from 38 patients with myocarditis and from eight control subjects by using reverse transcriptase-polymerase chain reaction (PCR) and immunohistochemistry. Viral etiology was diagnosed by PCR in 20 cases: enterovirus in seven, Epstein-Barr virus in four, hepatitis C virus in three, adenovirus in two, influenza virus in two, cytomegalovirus in one, and double infection adenovirus and enterovirus in one. Immunohistochemistry was also used to analyze both TNFalpha receptors (RI and RII). A semiquantitative analysis was employed (score 0-3) for necrosis, inflammation, fibrosis and immunohistochemical findings. TNFalpha mRNA and TNFalpha protein were significantly more present in viral myocarditis than in nonviral myocarditis (16/20 vs 3/18, P=0.001). Remarkable immunostaining was observed for both receptors, particularly TNFRI. Histological analysis revealed that myocardial necrosis (mean score 1.89 vs 1.15, P=0.01) and cellular infiltration (mean score 2.26 vs 1.78, P=0.05) were more prominent in TNFalpha-positive cases. Among TNFalpha-positive cases, the greater TNFalpha mRNAs, the more impaired was cardiac function. Our findings suggest that the expression of TNFalpha may play an important role in the pathogenesis of viral myocarditis of any etiology and may influence the severity of cardiac dysfunction. Cytokine effects are more strictly linked to overexpression of TNFRI

    Insights on the Extreme Storm Surge Event of the 22 November 2022 in the Venice Lagoon

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    The Italian Institute for Environmental Protection and Research (ISPRA) manages the national sea state real time monitoring system for Italy, which consists of the National Sea Level Network (RMN), the North Adriatic and Venice Lagoon Sea Level Network (RMLV), the National Wave Networks (RON), and a marine weather forecasting system. These systems are particularly deployed to monitor and predict storm surges that affect the northern part of the Adriatic Sea and the Venice Lagoon, usually causing damages and morphological impacts over the highly anthropized coastal areas. On 22 November 2022, an extreme storm surge event occurred in the northern Adriatic Sea, producing severe damages on its coastline. Venice and the surrounding urban settlements have been protected from flooding thanks to the operation of the Mo.S.E. (Modulo Sperimentale Elettromeccanico) system, a set of artificial barriers built to isolate the lagoon from the sea in case of extreme high tides. Coastal flooding prevention measures, such as storm-surge barriers, are indeed being widely adopted globally because of the accelerating rise in sea levels. An analysis of this extreme event is presented here to highlight the functionality and the usefulness of the ISPRA sea state monitoring system. In particular, the analysis of the as-if scenario reproducing the natural tide propagation within the lagoon, neglecting the operation of the Mo.S.E. system, can only be pursued by using hydrodynamic models forced using extensive observed data. Results highlight that the “not-regulated” sea level would have exceeded 200 cm above the reference datum at Chioggia, a threshold never recorded in the Venice Lagoon since sea level monitoring systems have been operational
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