245 research outputs found
Exhibition "Warps of rationality" at the Peruzzo Foundation and analysis on the artistic exposure
No full textopenLa Fondazione Alberto Peruzzo è un'istituzione no-profit istituita nel 2015, grazie alla volontà dell'imprenditore Alberto Peruzzo, con il fine di favorire la diffusione dell'arte contemporanea nel territorio di Padova e il recupero del patrimonio artistico della città. Infatti, grazie all’ideazione di un progetto di recupero architettonico, la chiesa di Sant’Agnese a Padova in disuso da tempo, ma con un valore fortemente simbolico per la città, è diventata sede della Fondazione e spazio espositivo. La Fondazione Peruzzo ospita spesso mostre e allestimenti d’arte, infatti, nel novembre dello scorso anno ha ospitato due mostre particolarmente interessanti che sono oggetto di questa tesi: una intitolata “Uno scenario mentale” di Ester Stocker, situata nello spazio che precedentemente era la navata della chiesa, e una seconda dal titolo “Orditi della razionalità”, che è stata allestita in quella che era la sacrestia. Le opere esposte di artisti italiani ed internazionali, brevemente presentati in questa tesi, provengono dal Museo Umbro Apollonio di San Martino di Lupari, che custodisce oltre un centinaio di opere di artisti di fama internazionale, dedicato al critico d’arte Umbro Apollonio e dal Fondo Verica 8+1 di Mestre, una raccolta di circa quattrocento opere di arti figurative, che comprendono oggettistica di arte contemporanea, pittura e scultura e che risultano estremamente importanti e rappresentative della sperimentazione artistica veneziana. Fattore comune a tutti gli artisti descritti nella tesi è l’adesione all’Optical Art, la corrente d’arte astratta nata intorno al 1960, che utilizza forme geometriche per creare illusioni ottiche e l’impressione plastica del movimento, grazie alle quali il coinvolgimento nell’opera d’arte da parte dell’osservatore è fortemente stimolata
Monitoring soil compaction during a controlled irrigation experiment using multiple hydrogeophysical data
No full textUncovering soil compaction: performance of electrical and electromagnetic geophysical methods
No full textERT and EMI Characterization of the Spatiotemporal Variability of Agricultural and Forest Soils: Some Common Methodological Issues
No full textThe interplay between water dynamics and soil characteristics underpins the functioning and resilience of the soil-plant-atmosphere continuum, but also leads to complex spatiotemporal variability. This variability challenges mapping and monitoring methodologies, ultimately hindering the definition of more effective management practices. Hence, informing the development of effective management practices has become a multidisciplinary and multi-methodological effort. Among geophysical methods, electrical resistivity tomography (ERT) and electromagnetic induction (EMI) have been increasingly used for their sensitivity to water and soil texture changes, as well as for their capability to provide spatially extensive information and noninvasive monitoring. We present some common ERT and EMI survey designs in hydrological and agricultural applications, reviewing their potential and highlighting some key limitations. We first consider the use of ERT time-lapse measurements during irrigation tests, which allows the decoupling of static soil properties and water dynamics, but also requires a careful survey design to achieve the right trade-off of spatial and temporal resolutions and guarantee reliable results. We then present the use of EMI to map the irrigation and evapotranspiration dynamics in orchards, where the strong spatial variability and anisotropy challenge EMI high-resolution surveys and quantitative interpretations. This study reviews how the characteristics of the methods are reflected in their common usage, but also possible pitfalls
Multimode quantum interference of photons in multiport integrated devices
No full textPhotonics is a leading approach in realizing future quantum technologies and recently, optical waveguide circuits on silicon chips have demonstrated high levels of miniaturization and performance. Multimode interference (MMI) devices promise a straightforward implementation of compact and robust multiport circuits. Here, we show quantum interference in a 2×2 MMI coupler with visibility of V=95.6±0.9%. We further demonstrate the operation of a 4×4 port MMI device with photon pairs, which exhibits complex quantum interference behaviour. We have developed a new technique to fully characterize such multiport devices, which removes the need for phase-sensitive measurements and may find applications for a wide range of photonic devices. Our results show that MMI devices can operate in the quantum regime with high fidelity and promise substantial simplification and concatenation of photonic quantum circuit
High-dimensional entanglement certification
No full textWe show how to certify that a bipartite system is entangled through
a simple procedure that works for arbitrary system dimension and
employs only two local measurements of complementary properties.
The procedure can also certify whether the system is maximally
entangled. We experimentally demonstrate it for families of
bipartite states of qudits with dimension up to composed of
entangled pairs of polarised photons. We also confirm a
surprising result that states with quantum discord but with no
entanglement have less correlation in the measurement outcomes than
classically correlated states
Cognitivismo moral pragmático e metaética nas investigações filosóficas de Wittgenstein
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Filosofia, Florianópolis, 2014.A presente tese defende a possibilidade do cognitivismo moral pragmático nas Investigações Filosóficas de Wittgenstein. Esta posição é sustentada a partir da reconstrução do debate metaético instaurado entre cognitivistas e não-cognitivistas, especialmente nas interpretações fornecidas pelo realismo moral de McDowell e pelo quase-realismo de Blackburn. Inicialmente, o trabalho mostra que no Tractatus o autor defende o não-cognitivismo como alternativa para demarcar o limite entre o conteúdo das proposições científicas e aquelas morais. Entretanto, a partir das Investigações, é possível sustentar que o debate metaético entre realistas e antirrealistas é equivocado, uma vez que Wittgenstein compreende os jogos de linguagem morais como expressão intersubjetiva compartilhada pela forma de vida humana. Neste sentido, a ideia pragmática, derivada da influência jamesiana, deve ser considerada em sentido instrumental, uma vez que juízos e conceitos morais são cognitivos, na medida em que são analisados os resultados produzidos na ação, na práxis. Para apoiar nossa posição, mostramos que Wittgenstein recusa, por um lado, a visão platônica sobre as regras, analisada também pelo realismo moral e, por outro, o argumento de que não há regras objetivas e, por isso, todo conteúdo moral seria redutível a uma certa comunidade. Dominar uma técnica, seguir uma ordem, compreender um sentimento moral, portanto, não é um processo automático, pois, como afirma Wittgenstein "[...] 'seguir a regra' é uma práxis" (IF, § 202). Assim, o pressuposto comum a essas duas teorias metaéticas [cognitivismo e não-cognitivismo] pretende ser superado pelo cognitivismo pragmático, uma vez que suas falsas dicotomias partem da tese de que todo conhecimento moral é proposicional. Para sanar esse paradoxo, evitamos uma dicotomia radical entre fatos e valores, isto é, não há ações que podem ser valoradas como, por exemplo, certas ou erradas, corretas ou incorretas, extrinsecamente ao contexto do seu uso. No cognitivismo moral pragmático compreendemos que os valores estão na forma de vida humana, pois o que os jogos de linguagem morais partilham em comum é dado intersubjetivamente. Portanto, as regras que orientam os jogos de linguagem morais, para Wittgenstein, não são trilhos extralinguísticos, mas estão estruturadas pelas nossas práticas humanas.Abstract : This thesis defends the possibility of pragmatic moral cognitivism in Wittgenstein s Philosophical Investigations. This position is sustained from the reconstruction of the meta-ethical debate triggered between cognitivists and non-cognitivists, especially in the interpretations provided by McDowell s moral realism and Blackburn s quasirealism. First, the work shows that in the Tractatus the author defends non-cognitivism as an alternative to demarcate the boundary between the content of scientific propositions and moral ones. However, from Investigations, it is possible to argue that the meta-ethical debate between realists and antirrealists is misleading, as Wittgenstein understands moral language games as intersubjective expression shared by the human form of life. In this sense, the pragmatic idea derived from the Jamesian influence, should be considered in the instrumental sense, as judgments and moral concepts are cognitive to the extent that the results produced in action are analyzed, in praxis. To support our position, we show that Wittgenstein's refuses, on the one hand the Platonic view of the rules, also analyzed by moral realism and on the other hand the argument that there are no objective rules and therefore all moral content would be reducible to a certain community. Master a technique, follow an order, comprise a moral feeling, therefore, is not an automatic process, because, as Wittgenstein says "[...] 'rule-following' is a praxis" (IF, § 202). Therefore, the common assumption between these two meta-ethical theories [cognitivism and non-cognitivism] intends to be defeated by the pragmatic cognitivism, as their false dichotomies run throughout the thesis that moral knowledge is propositional. To solve this paradox, we avoid a radical dichotomy between facts and values, that is, there are no actions that can be valued, for example, as right or wrong, correct or incorrect, extrinsically to the context of its use. In pragmatic moral cognitivism, we understand that the values are in the form of human life, because what the moral language games share in common is given intersubjectively. So the rules that are a guide to moral language game for Wittgenstein, are not extralinguistic rails, but are structured by our human practices
Brief communication: Use of lightweight and low-cost steel net electrodes for electrical resistivity tomography (ERT) surveys performed on coarse-blocky surface environments
No full textERT is a widely used geophysical technique for characterizing various mountainous environments where land surfaces consist of coarse blocks and debris, such as landslide deposits or rock glaciers. In this situation, installing the common steel spike electrodes is both challenging and time-consuming, and achieving galvanic contact between the electrodes and the surface is difficult. In this work, we have successfully tested an alternative electrode that is tougher, lighter and cheaper than the recently proposed conductive textile electrode. A thin stainless-steel net and sponges are used to create small bags that can be easily inserted between the blocks, and then removed
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