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Fonti alternative di approvvigionamento idrico: la desalinizzazione. La legge “SalvaMare” e il passo indietro del decreto “Siccità”. Innovazioni sostenibili
No full textWater is an essential resource for life and a fundamental human right. Drought and global warming are increasingly affecting larger geographical areas. Desalination helps increase water supplies but has significant impacts on ecosystems and health. Article 12
of Legislative Decree No. 60 of 2022 – the “SaveSea” law – addressed a genuine legislative gap by subjecting the construction of such plants to environmental impact assessment procedures, marking a step forward in environmental protection, shortly followed
by a regulatory setback. Legislative Decree No. 39 of 2023, converted into Law No. 68
of 2023 – the “Drought” decree – significantly scaled back the scope of Article 12, subjecting desalination plants with a capacity equal to or greater than 200 l/s to a verification
of the need for an environmental impact assessment, leaving out larger plants that could
significantly affect the environment. An innovative and more sustainable alternative to
land-based plants is represented by mobile desalination
Effect of Water Sorption on the Mechanical Properties of a CNT-Based Epoxy Resin
No full textThis study aims to assess the impact of water absorption on the mechanical properties of CNTs-composite using dynamic mechanical analysis (DMA). Water absorption results in a decrease in mechanical properties, such as storage modulus and Tan δ, due to swelling and plasticization effects. Specifically, the presence of water in the matrix causes the Tan δ peak to broaden. Following an approach that considers the Tan δ peak as comprising multiple relaxation mechanisms activated at different temperatures, an average glass transition temperature reduction of 20 °C was observed, along with a decrease in “network homogeneity” from 0.95 to 0.62 as water absorption increased
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Electrical Behavior of Nanocomposites Exposed to Water Sorption
No full textThe present study examines the electrical response of nanocomposites to water uptake. Specifically, an electrical signal was employed to detect the amount of water absorbed in a carbon nanotube-based epoxy composite. The investigation focused on changes in the electrical resistance of the composite with a filler content (0.1% by weight) near the electrical percolation threshold. Water penetration results in “non-Fickian” diffusion behavior due to the composite's viscoelastic nature and plasticization effects. The variation in time of the resistance change ratio, similar to that of water absorption, allows associating the electrical resistance measurement for the amount of the absorbed water by the use of a sensitivity factor
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
monitoraggio di impianti di depurazione della regione Campania mediante l'utilizzo di una batteria di test ecotossicologici
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