284 research outputs found
Existence of anticorrelations for local field potentials recorded from mice reared in standard condition and environmental enrichment
No full textIn the present paper, we analyze local field potentials (LFPs) recorded from the secondary motor cortex (M2) and primary visual cortex (V1) of freely moving mice reared in environmental enrichment (EE) and standard condition (SC). We focus on the scaling properties of the signals by using an integrated approach combining three different techniques: the Higuchi method, detrended fluctuation analysis, and power spectrum. Each technique provides direct or indirect estimations of the Hurst exponent H and this prevents spurious identification of scaling properties in time-series analysis. It is well known that the power spectrum of an LFP signal scales as 1/f(β) with β>0. Our results indicate the existence of a particular power spectrum scaling law 1/f(β) with β<0 for low frequencies (f<4 Hz) for both SC and EE rearing conditions. This type of scaling behavior is associated to the presence of anticorrelation in the corresponding LFP signals. Moreover, since EE is an experimental protocol based on the enhancement of sensorimotor stimulation, we study the possible effects of EE on the scaling properties of secondary motor cortex (M2) and primary visual cortex (V1). Notably, the difference between Hurst's exponents in EE and SC for individual cortical regions (M2) and (V1) is not statistically significant. On the other hand, using the detrended cross-correlation coefficient, we find that EE significantly reduces the functional coupling between secondary motor cortex (M2) and visual cortex (V1)
Gunnar Garbo as journalist
No full textGunnar Garbo er mest kjent som stortingspolitiker og leder av partiet Venstre under splittelsen av partiet under EF-kampen i 1972. Han levde et liv i offentligheten helt til han døde 92 år gammel i 2016. Artikkelen er basert på nærlesning av avisene han arbeidet i hans 12 år som journalist og avisredaktør. Forfatteren har også hatt tilgang til private brev, dagbøker og notater som er i familiens eie. Forskningsspørsmålet som søkes besvart er: Hva kjennetegnet Garbo som journalist og pressemann? Han kom fra eksil i Stockholm i 1945 og fikk jobb Bergens Tidende (BT). Det var starten på tolv år i journalistikken. Først ni år som journalist i BT, deretter tre år som redaktør i Nidaros i Trondheim. Her ble han helt til han ble valgt inn som stortingsrepresentant for Venstre i 1957. Han hadde skrivegleden med seg fra barnsben av og var inspirert av faren Ingvald som ble skutt av de tyske okkupantene. En linje i hele hans virke som journalist og redaktør var motstand mot krig og opprustning og interesse for internasjonale forhold og utenrikspolitikk. Det er en grunnleggende tese i denne artikkelen at farens skjebne preget hele hans liv og ble et viktig premiss for hans karriere som journalist og politiker der det internasjonale engasjementet står helt sentralt.
Gunnar Garbo is best known as a Norwegian parliamentarian and leader of the Liberal Party during the party’s split during the EEC referendum campaign in 1972. He lived a life in the public eye until he died at the age of 92 in 2016. The article is based on close reading of the newspapers he worked for during his 12 years as a journalist and newspaper editor. The author has also had access to private letters, diaries and notes that are in his family’s possession. The research question that is sought to answer is: What characterised Garbo as a journalist and editor? Garbo returned from exile in Stockholm in 1945 and got a job at Bergens Tidende (BT) where he stayed for nine years, followed by three years as an editor of Nidaros in Trondheim. He remained in this position until he was elected as a parliamentary representative for the Liberal Party in 1957. From childhood he enjoyed writing and was inspired by his father, Ingvald, who was shot by the German occupiers during the Second World War. His career as a journalist and editor was marked by his opposition to war and armaments and his interest in international affairs and foreign policy.publishedVersio
Numerical Investigation of Laminar to Turbulent Boundary Layer Transition on a NACA 0012 Airfoil for Vertical-Axis Wind Turbine Applications
No full text
PLASMIX management : LCA of six possible scenarios
No full textOnly a small percentage of the separately collected plastic is recycled. The mechanical selection process of source segregated plastic materials generates considerable amounts of residues that are commonly named as Plasmix. By means of a life cycle assessment (LCA) modelling, the environmental performances of the main Plasmix management options (thermal treatment, energy recovery, and landfilling) were compared. Six treatment scenarios, with different pre-treatment alternatives, were evaluated. Landfilling after waste washing and Plasmix substitution of coke in a blast furnace represent the most favorable options, since the performances of thermal treatment and energy recovery are worsened by specific emissions of a variety of toxic compounds and heavy metals within plastic materials as additives
Greta Garbo e Ferragamo.Il Made in Italy tra Minimalismo e Gender Crossing
No full textL’incontro tra la divina Garbo e una delle bandiere più illustri del Made in Italy delle calzature, il designer Salvatore Ferragamo, ha segnato anche una delle sinergie più compiute tra i desideri della donna che Roland Barthes inserì nell’elenco dei “miti d’oggi” e un modello di stile che avrebbe rivoluzionato e influenzato la moda femminile del Novecento.
Capace di recitare da grandissima professionista quale era un ampio ventaglio di storie e ruoli femminili sulla scena, alla Garbo è riuscito di insinuarsi come poche altre attrici prima di lei tanto nell’immaginario del pubblico maschile che in quello femminile. Avvolta nei sontuosi ed eleganti abiti disegnati per lei dal costumista Clement Andreani, più noto come Adrian, l’ex-commessa svedese di un grande magazzino di Stoccolma s’impose come diva internazionale grazie all’immagine riflessa dalle tante pellicole di Hollywood che la consacrarono modello di seduzione dal 1926 al 1941 (anno del suo ritiro definitivo dal cinema): La carne e il diavolo, La divina, La donna del mistero, Orchidea Selvaggia fino a Anna Christie, Mata Hari, La regina Cristina, Maria Walwska e Ninotchka.
Eppure ciò che ha reso davvero irresistibile il fascino della Garbo, e che ancora oggi a distanza di tanti anni ce ne rende il ricordo così eccezionale, è stata la progressiva immissione nella dimensione fantastica della celebrità cui apparteneva, di uno stile lontanissimo da quello hollywoodiano e legato invece alla conduzione di una vita privata gelosamente custodita, lontano dalla mondanità e dai riflettori. Così la contraddizione tra la proiezione mitica dell’immagine della diva famosa, seducente e sofisticata come appariva sugli schermi cinematografici mondiali, con la sempre più evidente presenza di capi e accessori “quotidiani” provenienti dalla normalità della donna Garbo, diventa un veicolo fondamentale per alimentarne l’aura di personaggio intrigante e controcorrente anche fuori dal palcoscenico. La Garbo impone un’immagine di donna sportiva, minimalista, che preferisce elementi di vestiario androgino come pantaloni, giacche lunghe oversize, maglioni a collo alto, camicie di taglio maschile, trench, cravatte, cappelli a cloche, baschi, feltri, assieme agli inseparabili grandi occhiali da sole, anticipando così l’ambiguità visiva ed esistenziale che sarà distintiva di un’altra grande diva gender crossing come Marlene Dietrich. La Garbo acquista capi all’emporio militare di Los Angeles e si fa confezionare completi pantalone dal sarto maschile Watson su suggerimento di Mercedes de Acosta. Guarda al comfort, alla praticità e alla funzionalità e rifugge agli eccessi e all’ostentazion
Sistemi di trasmissione ibridi per applicazioni off-highway: le macchine elettriche, la loro alimentazione e il loro controllo. Analisi dei vantaggi competitivi ottenibili attraverso schemi e soluzioni innovative
No full textHybridization and electrification of mobile working machinery are becoming promising areas of research and development for the off-highway industry. In this context, numerical modeling plays a fundamental role in predicting the performance of the vehicle transmission system and in optimizing its operation. A good design of the mechanical and electrical components of a hybrid transmission can be achieved only through an integrated approach.
Regarding the hybrid electric traction, by means of the Ph.D. with high level training apprenticeship contract, I proceeded to the identification and analysis of some schemes in order to develop innovative solutions for the off-highway industry.
I dealt with innovative solutions focusing on the modeling of industrial hybrid electric transmissions and agricultural electric powersplit transmissions. I chose to use AMESim as 1D multi-domain dynamic simulation tool. The results showed that an industrial vehicle equipped with an electric-hydrodynamic hybrid transmission, demonstrates 8% lower fuel consumption than a conventional vehicle. A representative working cycle defined by the author on the basis of the company experience and the data collected in literature was proposed as basis for comparison. Within the agricultural transmissions the electric variator has proved to be more competitive even better than conventional hydrostatic variator for power-split applications.
I went into detail about the design of electrical machines and their related power and control technologies adopted for off-highway hybrid transmission considering also their integration into the mechanical system. This activity, aimed at the design of an electric drive for an industrial application, has allowed me to develop a model of electric motor, taking into account iron and copper losses, to be integrated in the simulation model of the complete vehicle. In this way, the electromagnetic and thermal design aspects were examined, identifying the parameters of optimization and the trade-offs that play a role in the design of a permanent magnet synchronous electric machine and in the development of the control algorithms.
Having identified and quantified the benefits of hybrid solutions compared to conventional designs, thanks to the skills that I have acquired during the training period inside the company, my research has focused on the development of a preliminary design for a hybrid transmission, addressing also constructive aspects: from mechanical design to manufacturing and assembly. This concept will be tested in the research and development department of the company upon completion of the detailed design
Greta Garbo como forma fílmica: cinesias de uma atriz-autora no cinema hollywoodiano
No full textGreta Garbo, considered as the symbol of the star system until the end of the 1940s, played as a professional film actress in over 30 movies, from the pre-sound synchronic cinema to the post-sound synchronic cinema, an integral part of the complex Fordist-Taylorist Hollywood model. Nevertheless, the Garbo myth became an operating model for acting – a class of actors and actresses. Thus, through the methodology of bibliographic review, we seek to identify the the actorial operative kinesias that led her to consolidate herself in the cinematographic canon, in two instances: acting and extrafilmic. To this end, we articulate the notion of kinesias – anthropological movements that are not always ascendant in liminal environments – to actor studies, especially to Patrick McGilligan’s theory of the actor-auteur. Through a critical analysis of bibliographic review, we found that Greta Garbo amalgamated all the notorious and current acting precepts in their temporary context (fascination, dramatic action, photogenic, movie diva, rosticity, embody film and embodiment in acting, verisimilitude, star system through the bias of the persona mister), becoming an actress-author: dictating the forms of films and interfering in the direction of Hollywood power. The industry bounced back, and Garbo never won an Oscar in her acting career.Greta Garbo, considered as the symbol of the star system until the end of the 1940s, played as a professional film actress in over 30 movies, from the pre-sound synchronic cinema to the post-sound synchronic cinema, an integral part of the complex Fordist-Taylorist Hollywood model. Nevertheless, the Garbo myth became an operating model for acting – a class of actors and actresses. Thus, through the methodology of bibliographic review, we seek to identify the the actorial operative kinesias that led her to consolidate herself in the cinematographic canon, in two instances: acting and extrafilmic. To this end, we articulate the notion of kinesias – anthropological movements that are not always ascendant in liminal environments – to actor studies, especially to Patrick McGilligan’s theory of the actor-auteur. Through a critical analysis of bibliographic review, we found that Greta Garbo amalgamated all the notorious and current acting precepts in their temporary context (fascination, dramatic action, photogenic, movie diva, rosticity, embody film and embodiment in acting, verisimilitude, star system through the bias of the persona mister), becoming an actress-author: dictating the forms of films and interfering in the direction of Hollywood power. The industry bounced back, and Garbo never won an Oscar in her acting career.Greta Garbo, considered as the symbol of the star system until the end of the 1940s, played as a professional film actress in over 30 movies, from the pre-sound synchronic cinema to the post-sound synchronic cinema, an integral part of the complex Fordist-Taylorist Hollywood model. Nevertheless, the Garbo myth became an operating model for acting – a class of actors and actresses. Thus, through the methodology of bibliographic review, we seek to identify the the actorial operative kinesias that led her to consolidate herself in the cinematographic canon, in two instances: acting and extrafilmic. To this end, we articulate the notion of kinesias – anthropological movements that are not always ascendant in liminal environments – to actor studies, especially to Patrick McGilligan’s theory of the actor-auteur. Through a critical analysis of bibliographic review, we found that Greta Garbo amalgamated all the notorious and current acting precepts in their temporary context (fascination, dramatic action, photogenic, movie diva, rosticity, embody film and embodiment in acting, verisimilitude, star system through the bias of the persona mister), becoming an actress-author: dictating the forms of films and interfering in the direction of Hollywood power. The industry bounced back, and Garbo never won an Oscar in her acting career.Greta Garbo, considerada como símbolo do sistema de estrelas até o final da década de 1940, atuou como atriz profissional em mais de 30 filmes, desde o cinema pré-sonoro até o cinema pós-sonoro, sendo parte integrante do complexo modelo hollywoodiano Fordista-Taylorista. No entanto, o mito de Garbo se tornou um modelo operacional para atuação entre a atorialidade – a classe de atores e atrizes. Assim, por meio da metodologia de revisão bibliográfica, buscamos identificar as cinesias operacionais da atuação que a levaram a se consolidar no cânone cinematográfico, em duas instâncias: a atuação em si e o contexto extracinematográfico. Para isso, articulamos a noção de cinesias –movimentos antropológicos que nem sempre são ascendentes em ambientes liminares – aos estudos de atores, especialmente à teoria de ator-autor de Patrick McGilligan. Por meio de uma análise crítica da revisão bibliográfica, descobrimos que Greta Garbo amalgamou todos os preceitos atuação em seu contexto temporário (fascinação, ação dramática, fotogenia, diva do cinema, rosticidade, encarnação do filme e incorporação na atuação, verossimilhança, star system por meio do viés da persona misteriosa), tornando-se uma atriz-autora: ditando as formas dos filmes e interferindo na direção do poder em Hollywood. A indústria revidou, e Garbo nunca ganhou um Oscar em sua carreira de atriz
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