231 research outputs found
Recensione a B. Levack, La caccia alle streghe, Bari, Laterza, 1988 in "Ricerche Storiche", 3, (1989)
No full textGravitational Waves from Neutron Stars’ merger and the living Relation between Man and God: An Analogy between Science and Faith
No full text‘Gloria Dei vivens homo, vita autem hominis visio Dei!’ (Irenaeus 1965: 248. 20, 7). This famous and magnificent synthesis is the core of the present paper which aims to
examine a fascinating analogy between the recent astronomical discovery concerning Gravitational Waves produced by the merger of two neutron stars (the event could be observed on August the 17th 2017 in the LIGO and Virgo Gravitational Interferometers and it was identified as GW170817), and the relation between God and Man in the Christian faith. The analogy is audacious but it seems to be extremely interesting. Is nature itself pointing beyond nature? We’ll try to walk inside a possible reading of nature as a continuous Creation/calling in which the Creator and Father Himself invites His children to search and dialogue with Him according to God’s dimension of Logos in Jesus Christ. The truth can never contradict the Truth, because everything around us, that is the whole Creation, speaks the same language of an incredible history of Love
Human skin odor analysis by means of an electronic nose
No full textElectronic noses have been applied to several disciplines such as food analysis, environmental control and industrial processes. In this paper the use of electronic noses in medicine is introduced and discussed. In this paper a review about the main features of human body odor is given. First experiments concerned with the measurement of the sensitivity of sensors towards a particular constituent of the skin odor, and preliminary results of a survey of skin-odor analysis in a population of individuals are reported. Findings encourage pursuing this research direction that can give rise to a better comprehension of the role of smell and odor in humans and, in the next future, to a novel diagnostic tool
Qualitative structure–sensitivity relationship in porphyrins based QMB chemical sensors
No full textThe specificity of chemical sensors ceased in the last years to be a fundamental feature due to the uprising of many applications, such as electronic noses, which require the presence of broad selectivity sensors. For these applications, the attention is paid to the development of sensors whose broad selectivity can be enhanced towards some classes of compounds. Among the materials used for the scope, porphyrins have shown a good versatility to be modified in order to cope with different applications. In this paper, an extensive study of the sensitivity variations induced by modifications of the basic porphyrins, used as coating of QMB sensors, is presented and discussed
Metalloporphyrins as basic material for volatile sensitive sensors
No full textThis paper reviews the satisfactory performances of metallopoprhyrins and related compounds when they are utilised as chemically sensitive materials for application in chemical sensors and sensor systems, such as electronic nose. Possible transduction mechanisms are reviewed and some results are presented and discussed
Assessment of aortic valve area (AVA) by cardiac magnetic resonance (CMR) imaging in comparison with transthoracic (TTE) and transesophageal echocardiography (TEE)
No full textApplication of a combined artificial olfaction and taste system to the quantification of relevant compounds in red wine
No full textThe combined application of an electronic nose and an electronic tongue to a number of samples of red wine having the same denomination, produced in the same year but from different vineyards, is illustrated and discussed. Artificial sense data have been compared with the analytical chemistry analysis performed with ordinary methods. The data reveal, first of all, a net distinction between electronic nose and electronic tongue, confirming the hypotheses that both the systems offer independent information on the samples. A certain correlation with some of the analytical indicators has also been found and a neural network regression model has been assessed for the qualitative determination of some of them
Characterization and design of porphyrins-based broad selectivity chemical sensors for electronic nose applications
No full textThe absolute selectivity of chemical sensors ceased in the last years to be a fundamental feature due to the uprising of many applications, such as electronic noses, which require the presence of broad selectivity sensors. On the other hand for these applications the attention is paid to the development of sensors whose broad selectivity can be oriented towards different classes of molecules representing a given environment in order to optimize the interface between the sensitive layers deposited on transducers and the chemical complexity of the environment itself. In this paper the main problems in the design and characterization of such sensors are presented and discussed in the case of a class of molecules, such as metallo-porphyrins, which have been recently exploited as sensitive layers in electronic nose applications. (C) 1998 Elsevier Science S.A. All rights reserved
Kelvin prove investigation of self-assembled-monolayers of thiol derivatized porphyrins interacting with volatile compounds
No full textThis paper describes preliminary results obtained by the Kelvin probe system utilized for the investigation of the sensing behavior of self-assembled-monolayers of thiol functionalized porphyrins. Dynamic aspects related to volatile compounds adsorption have indicated fast responses and a remarkable sensitivity. (C) 1998 Elsevier Science S.A. All rights reserved
Assessment of aortic valve area (AVA) by cardiac magnetic resonance (CMR) imaging in comparison with transthoracic (TTE) and transesophageal echocardiography (TEE)
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