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178 results on '"De Luca, Alessandra"'

1. A note on geometric assumptions for unique continuation from the edge of a crack

Author

De Luca, Alessandra

Subjects
Mathematics - Analysis of PDEs
Abstract

The present paper aims at representing an improvement of the result in [2], where a strong unique continuation property and a description of the local behaviour around the edge of a crack for solutions to an elliptic problem are established, by relaxing the star-shapedness condition on the complement of the crack. More specifically, this assumption will be dropped off by applying a suitable diffeomorphism which straightens the boundary of the crack, before performing the approximation procedure developed in [2] in order to derive a suitable monotonicity formula. This will yield the appearence of a matrix in the equation, which shall be handled appropriately: for this we will take a hint from [4].

Published
2024

2. Unique continuation from conical boundary points for fractional equations

Author

De Luca, Alessandra, Felli, Veronica, and Vita, Stefano

Subjects
Mathematics - Analysis of PDEs, 31B25, 35R11, 35C20, 35J75, 35A16
Abstract

We provide fine asymptotics of solutions of fractional elliptic equations at boundary points where the domain is locally conical; that is, corner type singularities appear. Our method relies on a suitable smoothing of the corner singularity and an approximation scheme, which allow us to provide a Pohozaev type inequality. Then, the asymptotics of solutions at the conical point follow by an Almgren type monotonicity formula, blow-up analysis and Fourier decomposition on eigenspaces of a spherical eigenvalue problem. A strong unique continuation principle follows as a corollary., Comment: 33 pages, 3 figures

Published
2024

6. Layered patterns in reaction-diffusion models with Perona-Malik diffusions

Author

De Luca, Alessandra, Folino, Raffaele, and Strani, Marta

Subjects
Mathematics - Analysis of PDEs
Abstract

In this paper we deal with a reaction-diffusion equation in a bounded interval of the real line with a nonlinear diffusion of Perona-Malik's type and a balanced bistable reaction term. Under very general assumptions, we study the persistence of layered solutions, showing that it strongly depends on the behavior of the reaction term close to the stable equilibria $\pm1$, described by a parameter $\theta>1$. If $\theta\in(1,2)$, we prove existence of steady states oscillating (and touching) $\pm1$, called $compactons$, while in the case $\theta=2$ we prove the presence of $metastable$ $solutions$, namely solutions with a transition layer structure which is maintained for an exponentially long time. Finally, for $\theta>2$, solutions with an unstable transition layer structure persist only for an algebraically long time., Comment: 41 pages,7 figures

Published
2023
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7. Strong unique continuation from the boundary for the spectral fractional Laplacian

Author

De Luca, Alessandra, Felli, Veronica, and Siclari, Giovanni

Subjects
Mathematics - Analysis of PDEs, 35R11, 35B40, 31B25
Abstract

We investigate unique continuation properties and asymptotic behaviour at boundary points for solutions to a class of elliptic equations involving the spectral fractional Laplacian. An extension procedure leads us to study a degenerate or singular equation on a cylinder, with a homogeneous Dirichlet boundary condition on the lateral surface and a non homogeneous Neumann condition on the basis. For the extended problem, by an Almgren-type monotonicity formula and a blow-up analysis, we classify the local asymptotic profiles at the edge where the transition between boundary conditions occurs. Passing to traces, an analogous blow-up result and its consequent strong unique continuation property is deduced for the nonlocal fractional equation.

Published
2023

10. Nonlocal capillarity for anisotropic kernels

Author

De Luca, Alessandra, Dipierro, Serena, and Valdinoci, Enrico

Subjects
Mathematics - Analysis of PDEs
Abstract

We study a nonlocal capillarity problem with interaction kernels that are possibly anisotropic and not necessarily invariant under scaling. In particular, the lack of scale invariance will be modeled via two different fractional exponents $s_1, s_2\in (0,1)$ which take into account the possibility that the container and the environment present different features with respect to particle interactions. We determine a nonlocal Young's law for the contact angle and discuss the unique solvability of the corresponding equation in terms of the interaction kernels and of the relative adhesion coefficient.

Published
2022

11. Strong unique continuation and local asymptotics at the boundary for fractional elliptic equations

Author

De Luca, Alessandra, Felli, Veronica, and Vita, Stefano

Subjects
Mathematics - Analysis of PDEs, 31B25, 35R11, 35C20
Abstract

We study local asymptotics of solutions to fractional elliptic equations at boundary points, under some outer homogeneous Dirichlet boundary condition. Our analysis is based on a blow-up procedure which involves some Almgren type monotonicity formulae and provides a classification of all possible homogeneity degrees of limiting entire profiles. As a consequence, we establish a strong unique continuation principle from boundary points., Comment: 41 pages, 2 figures

Published
2021
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13. Unique continuation from the edge of a crack

Author

De Luca, Alessandra and Felli, Veronica

Subjects
Mathematics - Analysis of PDEs, 35J15, 35C20, 74A45
Abstract

In this work we develop an Almgren type monotonicity formula for a class of elliptic equations in a domain with a crack, in the presence of potentials satisfying either a negligibility condition with respect to the inverse-square weight or some suitable integrability properties. The study of the Almgren frequency function around a point on the edge of the crack, where the domain is highly non-smooth, requires the use of an approximation argument, based on the construction of a sequence of regular sets which approximate the cracked domain. Once a finite limit of the Almgren frequency is shown to exist, a blow-up analysis for scaled solutions allows us to prove asymptotic expansions and strong unique continuation from the edge of the crack., Comment: 32 pages, 2 figures

Published
2020

14. Terrorism and realism in contemporary Italian literature : the victim as a literary character and a cultural paradigm

Author

Pellegrini De Luca, Alessandra, Messina, Davide, and Pedriali, Federica

Subjects
terrorism, contemporary Italian culture, victimhood
Abstract

This thesis explores the idea of victimhood in Italian literary representations of terrorism, looking at its relationship with realism. More specifically, I focus on the period of Italian political terrorism in the 1970s, the so-called Years of Lead, through a corpus of novels and short stories written by authors who did not have direct experience of those events. By examining how these writers reworked the memory of 1970s terrorism in the 2000s, I look at the victim as a literary character and as a cultural paradigm for this generation. I argue that a fundamental narrative of impotence lies beneath the political commitment of these authors, and that their realism expresses a concern about the practical usefulness of their writing. The portrayal of victims is underdeveloped and ideologically polarized, and more similar to representation in political and media discourse than in literature. Moreover, a mythologization of leftist revolutionary violence informs many of the works. This thesis presents the first extensive and comparative analysis of the imagery of political terrorism of the 1970s in the work of a generation of writers who were born after those years. By exploring the relationship between generations and memory in the context of the crisis of the nation-state and the growth of a globalized environment, as well as the relationship between political commitment and literary imagination, this study may also offer some new insights on the question of ethics and intellectual engagement in contemporary Italian literature. This thesis is divided into three main parts. In Part I, I develop a close textual analysis of the representation of victims as literary characters: I show how this representation interacts with the political and social background of Italy in the 2000s, and how it casts light on the authors' urge to demonstrate the authority and public importance of their role as writers and intellectuals. In Part II, I explore victimhood as a cultural paradigm of the so-called 'transition' generation, who saw the decline of the idea of the nation-state in a globalized world, namely the generation born between 1966 and 1980, entering their twenties between 1986 and 2000 and their thirties between 1996 and 2010. By reworking the memory of 1970s terrorism, these authors approached and tried to interpret the globalized present through political and historical paradigms typical of modern national narratives. In Part III, I discuss how their work relates to realism. In fact, the corpus of this thesis is part of the so-called 'return to reality' after postmodernism. With this formula, some critics identify an increasing interest, in contemporary Italian literature, in subjects taken from contemporary history and politics - such as the Years of Lead - and characterized by a mix of fictional and non-fictional features. By engaging with the critical debate on the 'return to reality' and the literary trends that this debate identifies, I argue that the 'return to reality' identifies a preoccupation with the political engagement of intellectuals in a moment of deep and significant social and political transformation. Analysis shows how this preoccupation reproduces the pragmatic narratives of violence in the representation of victimhood. Finally, I focus on two works that stand out for their original and unconventional depiction of victims. Showing how the authors make use of two radically different modes of representation, I highlight the political dimension of these works, and I argue that an attention to history and politics in literature does not necessarily imply the use of a realist mode of representation.

Published
2021
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16. Multi Sensorial Stimulation Lab: A New Approach for Severe Dementia

Author

Boccadamo, Alberto, De Luca, Alessandra, Palamà, Luca, Sancarlo, Daniele, Leone, Alessandro, Diraco, Giovanni, Siciliano, Pietro, Toma, Antonio, Maffia, Michele, De Riccardis, Lidia, D’Alessandro, Leonardo, Borrelli, Gianfranco, Pistoia, Massimo, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Monteriù, Andrea, editor, Freddi, Alessandro, editor, and Longhi, Sauro, editor

Published
2021
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17. The Judge, the Legislator and … the Mediator. The Long Journey of Medical Malpractice in Italy

Author

De Luca, Alessandra, Boele-Woelki, Katharina, Series Editor, Blom, Joost, Editorial Board Member, Basedow, Jürgen, Founding Editor, Fernández Arroyo, Diego P., Series Editor, Bermann, George A., Founding Editor, Curran, Vivian, Editorial Board Member, Ferrari, Giuseppe Franco, Editorial Board Member, Mbengue, Makane Moïse, Editorial Board Member, de Sá Ribeiro, Marilda Rosado, Editorial Board Member, Sieber, Ulrich, Editorial Board Member, Wei, Dan, Editorial Board Member, and Bach-Golecka, Dobrochna, editor

Published
2021
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18. Long Time Decay Estimates in Real Hardy Spaces for the Double Dispersion Equation

Author

D’Abbicco, Marcello, De Luca, Alessandra, Benedetto, John J., Series Editor, Aldroubi, Akram, Advisory Editor, Cochran, Douglas, Advisory Editor, Feichtinger, Hans G., Advisory Editor, Heil, Christopher, Advisory Editor, Jaffard, Stéphane, Advisory Editor, Kovačević, Jelena, Advisory Editor, Kutyniok, Gitta, Advisory Editor, Maggioni, Mauro, Advisory Editor, Shen, Zuowei, Advisory Editor, Strohmer, Thomas, Advisory Editor, Wang, Yang, Advisory Editor, Boggiatto, Paolo, editor, Cappiello, Marco, editor, Cordero, Elena, editor, Coriasco, Sandro, editor, Garello, Gianluca, editor, Oliaro, Alessandro, editor, and Seiler, Jörg, editor

Published
2020
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19. Hospitals with and without neurosurgery: a comparative study evaluating the outcome of patients with traumatic brain injury

Author

Giugni, Aimone, Gamberini, Lorenzo, Carrara, Greta, Antiga, Luca, Brissy, Obou, Buldini, Virginia, Calamai, Italo, Csomos, Akos, De Luca, Alessandra, Ferri, Enrico, Fleming, Joanne M., Gradisek, Primoz, Kaps, Rafael, Kyprianou, Theodoros, Lagomarsino, Silvia, Lazar, Isaac, Martino, Costanza, Mikaszewska-Sokolewicz, Malgorzata, Montis, Andrea, Nardai, Gabor, Nattino, Giovanni, Nattino, Giuseppe, Paci, Giulia, Portolani, Laila, Xirouchaki, Nektaria, Chieregato, Arturo, and Bertolini, Guido

Published
2021
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21. Scrivere per curare. Un'esperienza di adozione del Diario del Paziente in Terapia Intensiva

Author

De Luca, Alessandra and Mascagni, Giulia

Subjects
Health (social science), terapia intensiva, communication, diario del paziente, Health Policy, narrative medicine, coinvolgimento del caregiver, Memory disorders, patient diary, intensive care, communication, narrative medicine, caregiver engagement, disturbi della memoria, diario del paziente, terapia intensiva, comunicazione, medicina narrativa, coinvolgimento del caregiver, medicina narrativa, Memory disorders, disturbi della memoria, patient diary, caregiver engagement, comunicazione, intensive care
Published
2023

24. Strong Unique Continuation from the Boundary for the Spectral Fractional Laplacian

Author

De Luca, A, Felli, V, Siclari, G, De Luca, Alessandra, Felli, Veronica, Siclari, Giovanni, De Luca, A, Felli, V, Siclari, G, De Luca, Alessandra, Felli, Veronica, and Siclari, Giovanni

Abstract

We investigate unique continuation properties and asymptotic behaviour at boundary points for solutions to a class of elliptic equations involving the spectral fractional Laplacian. An extension procedure leads us to study a degenerate or singular equation on a cylinder, with a homogeneous Dirichlet boundary condition on the lateral surface and a non-homogeneous Neumann condition on the basis. For the extended problem, by an Almgren-type monotonicity formula and a blow-up analysis, we classify the local asymptotic profiles at the edge where the transition between boundary conditions occurs. Passing to traces, an analogous blow-up result and its consequent strong unique continuation property is deduced for the nonlocal fractional equation.

Published
2023

25. From Farm to Clothes. Design for New Bio-Based Textiles Productions from Local Feedstocks

Author

Sbordone Maria Antonietta, Amato Carmela Ilenia, De Luca Alessandra, Merola Venere, D. Raposo, J. Neves, R. Silva, L. Correira Castilho, R. Dias, Sbordone, Maria Antonietta, Amato, CARMELA ILENIA, De Luca, Alessandra, and Merola, Venere

Subjects
Open-loop co-benefits, Farm-manufacture, New bio-based yarns
Abstract

The research of the Textile Design laboratory, TexLab, of the Department of Architecture and Industrial Design (Unicampania) is aimed at the integration of local production chains for the valorisation of vegetable biomass for the development of innovative bio-based yarns. The project From Farm to Clothes aims to focus attention on new forms of production and consumption by interpreting the recommendations of the United Nations SDG’s goal number 12 “Responsible consumption and Production”. The project, therefore, defines a proposal for the development of bio-based textiles from agricultural and forest biomass, by creating a territorial network based on the building capacity of innovative processes and projects for local development. The TexLAB is part of the Textile & Clothing Business Labs (TCBL) community, a partner of the European project Herewear within the Work package 7 (Stakeholder community building & servicing); it interacts with the dissemination of results and exchange of models among which, the Lifecycle map for bio-based materials developed by UAL’s Centre for Circular Design, fits the project From Farm to Clothes.

Published
2022

28. Communication and visiting policies in Italian intensive care units during the first COVID-19 pandemic wave and lockdown: a nationwide survey

Author

Langer, Thomas, Depalo, Francesca Carmela, Forlini, Clarissa, Landini, Silvia, Mezzetti, Andrea, Previtali, Paola, Monti, Gianpaola, de Toma, Carolina, Biscardi, Davide, Giannini, Alberto, Fumagalli, Roberto, Mistraletti, Giovanni, Lissoni, Barbara, De Martini, Andrea, Mareto, Nadia, Rossitto, Concetta, Zummo, Ugo, Taverna, Martina, Machieraldo, Patrizia, Navarra, Mauro, Parlanti Garbero, Massimiliano, Scaletti, Chiara, Perno, Silvia, Amendolia, Luca, Montrucchio, Giuseppe, Veliaj, Deliana, Barbarello, Giuseppe, Alesci, Maria, Bolgiaghi, Luca, Vailati, Davide, Pezzi, Angelo, Boselli, Enrico, Piccoli, Francesca, Greco, Massimiliano, Gemma, Marco, Resta, Marco, Crotti, Stefania, Bottino, Nicola, Abruzzese, Chiara, Savioli, Monica, Migliorino, Giuseppina, Muttini, Stefano, Umbrello, Michele, Borghi, Beatrice, Greco, Stefano, Dizeo, Micaela, Bottiroli, Maurizio, Mondino, Michele Giovanni, Prosepri, Manlio, Casella, Giampaolo, Curto, Francesco, Zaniboni, Matteo, Giudici, Riccardo, Gentile, Carlo, Bombino, Michela, Rona, Roberto, Cortinovis, Barbara, Benini, Annalisa, Avalli, Leonello, Tavola, Mario, Ferrario, Matteo, Preda, Roberta, Primerano, Enzo, Russo, Gianluca, Porta, Virginia, Valdambrini, Federico, Fassini, Paola, Orando, Serena, Beck, Eduardo, Pedeferri, Matteo, Cogliati, Giacomina, Testini, Denise, Moroni, Benedetta, Codeluppi, Vito, Ruggeri, Patrizia, Milanesi, Elisa, Belliato, Mirko, Besozzi, Alessandra, Riccio, Mario, Zerbi, Silvia, Corbella, Davide, Ferri, Francesco, Grazioli, Lorenzo, Bonanomi, Ezio, Giacomini, Matteo, Sacchi, Noemi, Codognola, Cristian, Ambrosini, Alessandra, Guatteri, Luca, Subert, Matteo, Castelli, Gian Paolo, Borelli, Massimo, Venier, Erica, Dittura, Loredana, Buttera, Stefania, Bigai, Roberto, Magnoni, Sandra, Rauch, Simon, Colombo, Angelo, Fullin, Giorgio, Donolato, Caterina, Cattin, Silvia, State, Veronica, Redeghieri, Enrico, Russo, Alessandro, Pastorini, Simonetta, Allena, Sandra, Munari, Marina, Turchet, Federica, Peta, Mario, De Santis, Vincenzo, Scala, Cristina, Facondini, Francesca, Marangoni, Elisabetta, Tassinati, Tania, Zanzani, Chiara, Russo, Emanuele, Marchio, Annamaria, Barbagallo, Maria, Girardis, Massimo, Taffache, Paolo, Mordacci, Marco, Vincenzi, Matteo, Pennica, Michele, Bracciotti, Giovanna, Iori, Paola, Gambi, Davide, Cappellini, Iacopo, Vegnuti, Lara, De Luca, Alessandra, Romagnoli, Stefano, Mosti, Giamila, Carla, Rossella, Roticiani, Valeria, Pelagalli, Lorella, Fuselli, Ennio, D’Avino, Emilio, De Bellis, Massimo, Gianni, Giulia, Leonardis, Francesca, Rossi, Marzia, Lorusso, Rossana, Magnanimi, Eugenia, Martelli, Sabrina, Baisi, Floriana, Balsamo, Davide, Cotticelli, Virginia, Mattei, Alessia, Farinelli, Ivano, Riccini, Teresa, Cola, Luisanna, Jorio, Antonella, Iacobone, Emanuele, Domizi, Roberta, Pizzi, Simone, Nasso, Armando, Graziani, Romano, Monaco, Anna, Manno, Manuela, Ottelio, Carla Maria, Del Rio, Michela, Serra, Antonio, Enna, Barbara, Loddo, Francesco Marco, Galbiati, Rita, Mellea, Serena, Kimberly, Michelle Brozzi, Vissani, Matteo, Romito, Francesco Massimo, Baccari, Laura, Zarrillo, Nadia, Esposito, Clelia, Murino, Patrizia, Notaro, Salvatore, Ausiello, Carmine, Marra, Annachiara, Policastro, Carmela, Cafora, Chiara, De Benedectis, Giuseppe, Di Falco, Vincenzo, Sciddurlo, Maria, Negro, Giancarlo, Vetuschi, Paolo, Recchia, Andrea, Pasquariello, Rita, Squillace, Rosalba, Ciambrone, Antonio, Bencivenga, Carmela, Camiolo, Melania, Agozzino, Cristina, Oliveri, Francesco, Notarrigo, Tiziana, Castiglione, Giacomo, Mo, Antonella, Condorelli, Laura, Favarato, Martina, Langer, T, Depalo, F, Forlini, C, Landini, S, Mezzetti, A, Previtali, P, Monti, G, de Toma, C, Biscardi, D, Giannini, A, Fumagalli, R, Mistraletti, G, Lissoni, B, De Martini, A, Mareto, N, Rossitto, C, Zummo, U, Taverna, M, Machieraldo, P, Navarra, M, Parlanti Garbero, M, Scaletti, C, Perno, S, Amendolia, L, Montrucchio, G, Veliaj, D, Barbarello, G, Alesci, M, Bolgiaghi, L, Vailati, D, Pezzi, A, Boselli, E, Piccoli, F, Greco, M, Gemma, M, Resta, M, Crotti, S, Bottino, N, Abruzzese, C, Savioli, M, Migliorino, G, Muttini, S, Umbrello, M, Borghi, B, Greco, S, Dizeo, M, Bottiroli, M, Mondino, M, Prosepri, M, Casella, G, Curto, F, Zaniboni, M, Giudici, R, Gentile, C, Bombino, M, Rona, R, Cortinovis, B, Benini, A, Avalli, L, Tavola, M, Ferrario, M, Preda, R, Primerano, E, Russo, G, Porta, V, Valdambrini, F, Fassini, P, Orando, S, Beck, E, Pedeferri, M, Cogliati, G, Testini, D, Moroni, B, Codeluppi, V, Ruggeri, P, Milanesi, E, Belliato, M, Besozzi, A, Riccio, M, Zerbi, S, Corbella, D, Ferri, F, Grazioli, L, Bonanomi, E, Giacomini, M, Sacchi, N, Codognola, C, Ambrosini, A, Guatteri, L, Subert, M, Castelli, G, Borelli, M, Venier, E, Dittura, L, Buttera, S, Bigai, R, Magnoni, S, Rauch, S, Colombo, A, Fullin, G, Donolato, C, Cattin, S, State, V, Redeghieri, E, Russo, A, Pastorini, S, Allena, S, Munari, M, Turchet, F, Peta, M, De Santis, V, Scala, C, Facondini, F, Marangoni, E, Tassinati, T, Zanzani, C, Russo, E, Marchio, A, Barbagallo, M, Girardis, M, Taffache, P, Mordacci, M, Vincenzi, M, Pennica, M, Bracciotti, G, Iori, P, Gambi, D, Cappellini, I, Vegnuti, L, De Luca, A, Romagnoli, S, Mosti, G, Carla, R, Roticiani, V, Pelagalli, L, Fuselli, E, D’Avino, E, De Bellis, M, Gianni, G, Leonardis, F, Rossi, M, Lorusso, R, Magnanimi, E, Martelli, S, Baisi, F, Balsamo, D, Cotticelli, V, Mattei, A, Farinelli, I, Riccini, T, Cola, L, Jorio, A, Iacobone, E, Domizi, R, Pizzi, S, Nasso, A, Graziani, R, Monaco, A, Manno, M, Ottelio, C, Del Rio, M, Serra, A, Enna, B, Loddo, F, Galbiati, R, Mellea, S, Kimberly, M, Vissani, M, Romito, F, Baccari, L, Zarrillo, N, Esposito, C, Murino, P, Notaro, S, Ausiello, C, Marra, A, Policastro, C, Cafora, C, De Benedectis, G, Di Falco, V, Sciddurlo, M, Negro, G, Vetuschi, P, Recchia, A, Pasquariello, R, Squillace, R, Ciambrone, A, Bencivenga, C, Camiolo, M, Agozzino, C, Oliveri, F, Notarrigo, T, Castiglione, G, Mo, A, Condorelli, L, and Favarato, M

Subjects
Adult, Pandemic, Patient-centered care, Communication, COVID-19, Professional-family relations, Intensive Care Units, Policy, Anesthesiology and Pain Medicine, Health communication, Professional-family relation, Surveys and Questionnaires, Communicable Disease Control, Intensive care units, Pandemics, Humans, Intensive care unit, Child
Abstract

Background During the first coronavirus disease 2019 (COVID-19) pandemic wave, an unprecedented number of patients with respiratory failure due to a new, highly contagious virus needed hospitalization and intensive care unit (ICU) admission. The aim of the present study was to describe the communication and visiting policies of Italian intensive care units (ICUs) during the first COVID-19 pandemic wave and national lockdown and compare these data with prepandemic conditions. Methods A national web-based survey was conducted among 290 Italian hospitals. Each ICU (active between February 24 and May 31, 2020) was encouraged to complete an individual questionnaire inquiring the hospital/ICU structure/organization, communication/visiting habits and the role of clinical psychology prior to, and during the first COVID-19 pandemic wave. Results Two hundred and nine ICUs from 154 hospitals (53% of the contacted hospitals) completed the survey (202 adult and 7 pediatric ICUs). Among adult ICUs, 60% were dedicated to COVID-19 patients, 21% were dedicated to patients without COVID-19 and 19% were dedicated to both categories (Mixed). A total of 11,102 adult patients were admitted to the participating ICUs during the study period and only approximately 6% of patients received at least one visit. Communication with family members was guaranteed daily through an increased use of electronic devices and was preferentially addressed to the same family member. Compared to the prepandemic period, clinical psychologists supported physicians more often regarding communication with family members. Fewer patients received at least one visit from family members in COVID and mixed-ICUs than in non-COVID ICUs, l (0 [0–6]%, 0 [0–4]% and 11 [2–25]%, respectively, p Conclusions Visiting policies of Italian ICUs dedicated to adult patients were markedly altered during the first COVID-19 wave. Remote communication was widely adopted as a surrogate for family meetings. New strategies to favor a family-centered approach during the current and future pandemics are warranted.

Published
2022

29. On some nonlocal issues: unique continuation from the boundary and capillarity problems for anisotropic kernels

Author

DE LUCA, ALESSANDRA, DE LUCA, A, and FELLI, VERONICA

Subjects
local expansion, espansioni locali, capillarity, elliptic equation, capillarità, equazioni ellittiche, nuclei anisotropici, unique continuation, MAT/05 - ANALISI MATEMATICA, continuazione unica
Abstract

Lo scopo della presente tesi è quello di discutere i risultati ottenuti durante i miei studi di dottorato, principalmente rivolti a problemi non locali. Per prima cosa ci occupiamo di principi di continuazione unica forte ed espansioni asintotiche locali in determinati punti del bordo per soluzioni di due diverse classi di equazioni ellittiche. In particolare, partiamo con lo studio di una classe di equazioni ellittiche frazionarie in un dominio limitato sotto una condizione al contorno di Dirichlet omogenea esterna. Per fare ciò, sfruttiamo la procedura di estensione di Caffarelli-Silvestre, grazie alla quale il problema non locale può essere riformulato in modo equivalente come problema locale in una dimensione in più, generando un problema con condizioni miste. Dopodichè, utilizziamo un'idea classica di Garofalo e Lin per ottenere una condizione di raddoppio tramite una formula di monotonia per la funzione di Almgren. Per superare le difficoltà legate alla perdita di regolarità in corrispondenza della transizione tra le regioni di Dirichlet e di Neumann, introduciamo una nuova tecnica basata su un argomento di approssimazione, che ci permette di derivare una cosiddetta identità di tipo Pohozaev necessaria per stimare la derivata della funzione di Almgren . Otteniamo così un risultato di continuazione unica forte nel contesto locale, che viene a sua volta combinato con l’analisi di blow-up per dedurre espansioni asintotiche locali e, di conseguenza, una continuazione unica forte anche nel contesto non locale. Inoltre forniamo anche un risultato di continuazione unica forte dal bordo di una fessura per le soluzioni di una classe specifica di equazioni ellittiche del secondo ordine in un dominio limitato aperto con una frattura, su cui è assegnata una condizione al contorno di Dirichlet omogenea. Questo problema locale è correlato a un caso particolare dello studio descritto sopra, in virtù di una forte connessione tra questo tipo di problemi e i problemi al contorno con condizioni miste. Nella presente dissertazione, trattiamo anche una teoria della capillarità non locale. In particolare, consideriamo nuclei di interazione più generali che sono possibilmente anisotropici e non necessariamente invarianti rispetto allo stesso riscalamento. In particolare, la perdita di invarianza è modellata utilizzando due diversi esponenti frazionari per tenere conto della possibilità che il contenitore e l'ambiente presentino caratteristiche diverse rispetto alle interazioni delle particelle. Determiniamo inoltre una legge di Young non locale per l'angolo di contatto tra la gocciolina e la superficie del contenitore e discutiamo la solvibilità e l’unicità della soluzione dell'equazione corrispondente in termini di nuclei di interazione e del relativo coefficiente di adesione. The aim of the present thesis is to discuss the results obtained during my PhD studies, mainly devoted to nonlocal issues. We first deal with strong unique continuation principles and local asymptotic expansions at certain boundary points for solutions of two different classes of elliptic equations. We start the investigation by a class of fractional elliptic equations in a bounded domain under some outer homogeneous Dirichlet boundary condition. To do this, we exploit the Caffarelli-Silvestre extension procedure, which allows us to get an equivalent formulation of the nonlocal problem as a local problem in one dimension more, consisting in a mixed Dirichlet-Neumann boundary value problem. Then, we use a classical idea by Garofalo and Lin to obtain a doubling-type condition via a monotonicity formula for a suitable Almgren-type frequency function. To overcome the difficulties related to the lack of regularity at the Dirichlet-Neumann junction, we introduce a new technique based on an approximation argument, which leads us to derive a so-called Pohozaev-type identity needed to estimate the derivative of the Almgren function. Thus we gain a strong unique continuation result in the local context, which is in turn combined with blow-up arguments to deduce local asymptotics and, consequently, a strong unique continuation result in the nonlocal setting as well. We also provide a strong unique continuation result from the edge of a crack for the solutions to a specific class of second order elliptic equations in an open bounded domain with a fracture, on which a homogeneous Dirichlet boundary condition is prescribed, in the presence of potentials satisfying either a negligibility condition with respect to the inverse-square weight or some suitable integrability properties. This local problem is related to a particular case of the setting described above, by virtue of a strong connection between this type of problems and the mixed Dirichlet-Neumann boundary value problems. We also treat a capillarity theory of nonlocal type. In our setting, we consider more general interaction kernels that are possibly anisotropic and not necessarily invariant under scaling. In particular, the lack of scale invariance is modeled via two different fractional exponents in order to take into account the possibility that the container and the environment present different features with respect to particle interactions. We determine a nonlocal Young's law for the contact angle between the droplet and the surface of the container and discuss the unique solvability of the corresponding equation in terms of the interaction kernels and of the relative adhesion coefficient.

Published
2022

30. Communication and visiting policies in Italian intensive care units during the first COVID-19 pandemic wave and lockdown: a nationwide survey

Author

Langer, T, Depalo, F, Forlini, C, Landini, S, Mezzetti, A, Previtali, P, Monti, G, de Toma, C, Biscardi, D, Giannini, A, Fumagalli, R, Mistraletti, G, Lissoni, B, De Martini, A, Mareto, N, Rossitto, C, Zummo, U, Taverna, M, Machieraldo, P, Navarra, M, Parlanti Garbero, M, Scaletti, C, Perno, S, Amendolia, L, Montrucchio, G, Veliaj, D, Barbarello, G, Alesci, M, Bolgiaghi, L, Vailati, D, Pezzi, A, Boselli, E, Piccoli, F, Greco, M, Gemma, M, Resta, M, Crotti, S, Bottino, N, Abruzzese, C, Savioli, M, Migliorino, G, Muttini, S, Umbrello, M, Borghi, B, Greco, S, Dizeo, M, Bottiroli, M, Mondino, M, Prosepri, M, Casella, G, Curto, F, Zaniboni, M, Giudici, R, Gentile, C, Bombino, M, Rona, R, Cortinovis, B, Benini, A, Avalli, L, Tavola, M, Ferrario, M, Preda, R, Primerano, E, Russo, G, Porta, V, Valdambrini, F, Fassini, P, Orando, S, Beck, E, Pedeferri, M, Cogliati, G, Testini, D, Moroni, B, Codeluppi, V, Ruggeri, P, Milanesi, E, Belliato, M, Besozzi, A, Riccio, M, Zerbi, S, Corbella, D, Ferri, F, Grazioli, L, Bonanomi, E, Giacomini, M, Sacchi, N, Codognola, C, Ambrosini, A, Guatteri, L, Subert, M, Castelli, G, Borelli, M, Venier, E, Dittura, L, Buttera, S, Bigai, R, Magnoni, S, Rauch, S, Colombo, A, Fullin, G, Donolato, C, Cattin, S, State, V, Redeghieri, E, Russo, A, Pastorini, S, Allena, S, Munari, M, Turchet, F, Peta, M, De Santis, V, Scala, C, Facondini, F, Marangoni, E, Tassinati, T, Zanzani, C, Russo, E, Marchio, A, Barbagallo, M, Girardis, M, Taffache, P, Mordacci, M, Vincenzi, M, Pennica, M, Bracciotti, G, Iori, P, Gambi, D, Cappellini, I, Vegnuti, L, De Luca, A, Romagnoli, S, Mosti, G, Carla, R, Roticiani, V, Pelagalli, L, Fuselli, E, D’Avino, E, De Bellis, M, Gianni, G, Leonardis, F, Rossi, M, Lorusso, R, Magnanimi, E, Martelli, S, Baisi, F, Balsamo, D, Cotticelli, V, Mattei, A, Farinelli, I, Riccini, T, Cola, L, Jorio, A, Iacobone, E, Domizi, R, Pizzi, S, Nasso, A, Graziani, R, Monaco, A, Manno, M, Ottelio, C, Del Rio, M, Serra, A, Enna, B, Loddo, F, Galbiati, R, Mellea, S, Kimberly, M, Vissani, M, Romito, F, Baccari, L, Zarrillo, N, Esposito, C, Murino, P, Notaro, S, Ausiello, C, Marra, A, Policastro, C, Cafora, C, De Benedectis, G, Di Falco, V, Sciddurlo, M, Negro, G, Vetuschi, P, Recchia, A, Pasquariello, R, Squillace, R, Ciambrone, A, Bencivenga, C, Camiolo, M, Agozzino, C, Oliveri, F, Notarrigo, T, Castiglione, G, Mo, A, Condorelli, L, Favarato, M, Langer, Thomas, Depalo, Francesca Carmela, Forlini, Clarissa, Landini, Silvia, Mezzetti, Andrea, Previtali, Paola, Monti, Gianpaola, de Toma, Carolina, Biscardi, Davide, Giannini, Alberto, Fumagalli, Roberto, Mistraletti, Giovanni, Lissoni, Barbara, De Martini, Andrea, Mareto, Nadia, Rossitto, Concetta, Zummo, Ugo, Taverna, Martina, Machieraldo, Patrizia, Navarra, Mauro, Parlanti Garbero, Massimiliano, Scaletti, Chiara, Perno, Silvia, Amendolia, Luca, Montrucchio, Giuseppe, Veliaj, Deliana, Barbarello, Giuseppe, Alesci, Maria, Bolgiaghi, Luca, Vailati, Davide, Pezzi, Angelo, Boselli, Enrico, Piccoli, Francesca, Greco, Massimiliano, Gemma, Marco, Resta, Marco, Crotti, Stefania, Bottino, Nicola, Abruzzese, Chiara, Savioli, Monica, Migliorino, Giuseppina, Muttini, Stefano, Umbrello, Michele, Borghi, Beatrice, Greco, Stefano, Dizeo, Micaela, Bottiroli, Maurizio, Mondino, Michele Giovanni, Prosepri, Manlio, Casella, Giampaolo, Curto, Francesco, Zaniboni, Matteo, Giudici, Riccardo, Gentile, Carlo, Bombino, Michela, Rona, Roberto, Cortinovis, Barbara, Benini, Annalisa, Avalli, Leonello, Tavola, Mario, Ferrario, Matteo, Preda, Roberta, Primerano, Enzo, Russo, Gianluca, Porta, Virginia, Valdambrini, Federico, Fassini, Paola, Orando, Serena, Beck, Eduardo, Pedeferri, Matteo, Cogliati, Giacomina, Testini, Denise, Moroni, Benedetta, Codeluppi, Vito, Ruggeri, Patrizia, Milanesi, Elisa, Belliato, Mirko, Besozzi, Alessandra, Riccio, Mario, Zerbi, Silvia, Corbella, Davide, Ferri, Francesco, Grazioli, Lorenzo, Bonanomi, Ezio, Giacomini, Matteo, Sacchi, Noemi, Codognola, Cristian, Ambrosini, Alessandra, Guatteri, Luca, Subert, Matteo, Castelli, Gian Paolo, Borelli, Massimo, Venier, Erica, Dittura, Loredana, Buttera, Stefania, Bigai, Roberto, Magnoni, Sandra, Rauch, Simon, Colombo, Angelo, Fullin, Giorgio, Donolato, Caterina, Cattin, Silvia, State, Veronica, Redeghieri, Enrico, Russo, Alessandro, Pastorini, Simonetta, Allena, Sandra, Munari, Marina, Turchet, Federica, Peta, Mario, De Santis, Vincenzo, Scala, Cristina, Facondini, Francesca, Marangoni, Elisabetta, Tassinati, Tania, Zanzani, Chiara, Russo, Emanuele, Marchio, Annamaria, Barbagallo, Maria, Girardis, Massimo, Taffache, Paolo, Mordacci, Marco, Vincenzi, Matteo, Pennica, Michele, Bracciotti, Giovanna, Iori, Paola, Gambi, Davide, Cappellini, Iacopo, Vegnuti, Lara, De Luca, Alessandra, Romagnoli, Stefano, Mosti, Giamila, Carla, Rossella, Roticiani, Valeria, Pelagalli, Lorella, Fuselli, Ennio, D’Avino, Emilio, De Bellis, Massimo, Gianni, Giulia, Leonardis, Francesca, Rossi, Marzia, Lorusso, Rossana, Magnanimi, Eugenia, Martelli, Sabrina, Baisi, Floriana, Balsamo, Davide, Cotticelli, Virginia, Mattei, Alessia, Farinelli, Ivano, Riccini, Teresa, Cola, Luisanna, Jorio, Antonella, Iacobone, Emanuele, Domizi, Roberta, Pizzi, Simone, Nasso, Armando, Graziani, Romano, Monaco, Anna, Manno, Manuela, Ottelio, Carla Maria, Del Rio, Michela, Serra, Antonio, Enna, Barbara, Loddo, Francesco Marco, Galbiati, Rita, Mellea, Serena, Kimberly, Michelle Brozzi, Vissani, Matteo, Romito, Francesco Massimo, Baccari, Laura, Zarrillo, Nadia, Esposito, Clelia, Murino, Patrizia, Notaro, Salvatore, Ausiello, Carmine, Marra, Annachiara, Policastro, Carmela, Cafora, Chiara, De Benedectis, Giuseppe, Di Falco, Vincenzo, Sciddurlo, Maria, Negro, Giancarlo, Vetuschi, Paolo, Recchia, Andrea, Pasquariello, Rita, Squillace, Rosalba, Ciambrone, Antonio, Bencivenga, Carmela, Camiolo, Melania, Agozzino, Cristina, Oliveri, Francesco, Notarrigo, Tiziana, Castiglione, Giacomo, Mo, Antonella, Condorelli, Laura, Favarato, Martina, Langer, T, Depalo, F, Forlini, C, Landini, S, Mezzetti, A, Previtali, P, Monti, G, de Toma, C, Biscardi, D, Giannini, A, Fumagalli, R, Mistraletti, G, Lissoni, B, De Martini, A, Mareto, N, Rossitto, C, Zummo, U, Taverna, M, Machieraldo, P, Navarra, M, Parlanti Garbero, M, Scaletti, C, Perno, S, Amendolia, L, Montrucchio, G, Veliaj, D, Barbarello, G, Alesci, M, Bolgiaghi, L, Vailati, D, Pezzi, A, Boselli, E, Piccoli, F, Greco, M, Gemma, M, Resta, M, Crotti, S, Bottino, N, Abruzzese, C, Savioli, M, Migliorino, G, Muttini, S, Umbrello, M, Borghi, B, Greco, S, Dizeo, M, Bottiroli, M, Mondino, M, Prosepri, M, Casella, G, Curto, F, Zaniboni, M, Giudici, R, Gentile, C, Bombino, M, Rona, R, Cortinovis, B, Benini, A, Avalli, L, Tavola, M, Ferrario, M, Preda, R, Primerano, E, Russo, G, Porta, V, Valdambrini, F, Fassini, P, Orando, S, Beck, E, Pedeferri, M, Cogliati, G, Testini, D, Moroni, B, Codeluppi, V, Ruggeri, P, Milanesi, E, Belliato, M, Besozzi, A, Riccio, M, Zerbi, S, Corbella, D, Ferri, F, Grazioli, L, Bonanomi, E, Giacomini, M, Sacchi, N, Codognola, C, Ambrosini, A, Guatteri, L, Subert, M, Castelli, G, Borelli, M, Venier, E, Dittura, L, Buttera, S, Bigai, R, Magnoni, S, Rauch, S, Colombo, A, Fullin, G, Donolato, C, Cattin, S, State, V, Redeghieri, E, Russo, A, Pastorini, S, Allena, S, Munari, M, Turchet, F, Peta, M, De Santis, V, Scala, C, Facondini, F, Marangoni, E, Tassinati, T, Zanzani, C, Russo, E, Marchio, A, Barbagallo, M, Girardis, M, Taffache, P, Mordacci, M, Vincenzi, M, Pennica, M, Bracciotti, G, Iori, P, Gambi, D, Cappellini, I, Vegnuti, L, De Luca, A, Romagnoli, S, Mosti, G, Carla, R, Roticiani, V, Pelagalli, L, Fuselli, E, D’Avino, E, De Bellis, M, Gianni, G, Leonardis, F, Rossi, M, Lorusso, R, Magnanimi, E, Martelli, S, Baisi, F, Balsamo, D, Cotticelli, V, Mattei, A, Farinelli, I, Riccini, T, Cola, L, Jorio, A, Iacobone, E, Domizi, R, Pizzi, S, Nasso, A, Graziani, R, Monaco, A, Manno, M, Ottelio, C, Del Rio, M, Serra, A, Enna, B, Loddo, F, Galbiati, R, Mellea, S, Kimberly, M, Vissani, M, Romito, F, Baccari, L, Zarrillo, N, Esposito, C, Murino, P, Notaro, S, Ausiello, C, Marra, A, Policastro, C, Cafora, C, De Benedectis, G, Di Falco, V, Sciddurlo, M, Negro, G, Vetuschi, P, Recchia, A, Pasquariello, R, Squillace, R, Ciambrone, A, Bencivenga, C, Camiolo, M, Agozzino, C, Oliveri, F, Notarrigo, T, Castiglione, G, Mo, A, Condorelli, L, Favarato, M, Langer, Thomas, Depalo, Francesca Carmela, Forlini, Clarissa, Landini, Silvia, Mezzetti, Andrea, Previtali, Paola, Monti, Gianpaola, de Toma, Carolina, Biscardi, Davide, Giannini, Alberto, Fumagalli, Roberto, Mistraletti, Giovanni, Lissoni, Barbara, De Martini, Andrea, Mareto, Nadia, Rossitto, Concetta, Zummo, Ugo, Taverna, Martina, Machieraldo, Patrizia, Navarra, Mauro, Parlanti Garbero, Massimiliano, Scaletti, Chiara, Perno, Silvia, Amendolia, Luca, Montrucchio, Giuseppe, Veliaj, Deliana, Barbarello, Giuseppe, Alesci, Maria, Bolgiaghi, Luca, Vailati, Davide, Pezzi, Angelo, Boselli, Enrico, Piccoli, Francesca, Greco, Massimiliano, Gemma, Marco, Resta, Marco, Crotti, Stefania, Bottino, Nicola, Abruzzese, Chiara, Savioli, Monica, Migliorino, Giuseppina, Muttini, Stefano, Umbrello, Michele, Borghi, Beatrice, Greco, Stefano, Dizeo, Micaela, Bottiroli, Maurizio, Mondino, Michele Giovanni, Prosepri, Manlio, Casella, Giampaolo, Curto, Francesco, Zaniboni, Matteo, Giudici, Riccardo, Gentile, Carlo, Bombino, Michela, Rona, Roberto, Cortinovis, Barbara, Benini, Annalisa, Avalli, Leonello, Tavola, Mario, Ferrario, Matteo, Preda, Roberta, Primerano, Enzo, Russo, Gianluca, Porta, Virginia, Valdambrini, Federico, Fassini, Paola, Orando, Serena, Beck, Eduardo, Pedeferri, Matteo, Cogliati, Giacomina, Testini, Denise, Moroni, Benedetta, Codeluppi, Vito, Ruggeri, Patrizia, Milanesi, Elisa, Belliato, Mirko, Besozzi, Alessandra, Riccio, Mario, Zerbi, Silvia, Corbella, Davide, Ferri, Francesco, Grazioli, Lorenzo, Bonanomi, Ezio, Giacomini, Matteo, Sacchi, Noemi, Codognola, Cristian, Ambrosini, Alessandra, Guatteri, Luca, Subert, Matteo, Castelli, Gian Paolo, Borelli, Massimo, Venier, Erica, Dittura, Loredana, Buttera, Stefania, Bigai, Roberto, Magnoni, Sandra, Rauch, Simon, Colombo, Angelo, Fullin, Giorgio, Donolato, Caterina, Cattin, Silvia, State, Veronica, Redeghieri, Enrico, Russo, Alessandro, Pastorini, Simonetta, Allena, Sandra, Munari, Marina, Turchet, Federica, Peta, Mario, De Santis, Vincenzo, Scala, Cristina, Facondini, Francesca, Marangoni, Elisabetta, Tassinati, Tania, Zanzani, Chiara, Russo, Emanuele, Marchio, Annamaria, Barbagallo, Maria, Girardis, Massimo, Taffache, Paolo, Mordacci, Marco, Vincenzi, Matteo, Pennica, Michele, Bracciotti, Giovanna, Iori, Paola, Gambi, Davide, Cappellini, Iacopo, Vegnuti, Lara, De Luca, Alessandra, Romagnoli, Stefano, Mosti, Giamila, Carla, Rossella, Roticiani, Valeria, Pelagalli, Lorella, Fuselli, Ennio, D’Avino, Emilio, De Bellis, Massimo, Gianni, Giulia, Leonardis, Francesca, Rossi, Marzia, Lorusso, Rossana, Magnanimi, Eugenia, Martelli, Sabrina, Baisi, Floriana, Balsamo, Davide, Cotticelli, Virginia, Mattei, Alessia, Farinelli, Ivano, Riccini, Teresa, Cola, Luisanna, Jorio, Antonella, Iacobone, Emanuele, Domizi, Roberta, Pizzi, Simone, Nasso, Armando, Graziani, Romano, Monaco, Anna, Manno, Manuela, Ottelio, Carla Maria, Del Rio, Michela, Serra, Antonio, Enna, Barbara, Loddo, Francesco Marco, Galbiati, Rita, Mellea, Serena, Kimberly, Michelle Brozzi, Vissani, Matteo, Romito, Francesco Massimo, Baccari, Laura, Zarrillo, Nadia, Esposito, Clelia, Murino, Patrizia, Notaro, Salvatore, Ausiello, Carmine, Marra, Annachiara, Policastro, Carmela, Cafora, Chiara, De Benedectis, Giuseppe, Di Falco, Vincenzo, Sciddurlo, Maria, Negro, Giancarlo, Vetuschi, Paolo, Recchia, Andrea, Pasquariello, Rita, Squillace, Rosalba, Ciambrone, Antonio, Bencivenga, Carmela, Camiolo, Melania, Agozzino, Cristina, Oliveri, Francesco, Notarrigo, Tiziana, Castiglione, Giacomo, Mo, Antonella, Condorelli, Laura, and Favarato, Martina

Abstract

Background: During the first coronavirus disease 2019 (COVID-19) pandemic wave, an unprecedented number of patients with respiratory failure due to a new, highly contagious virus needed hospitalization and intensive care unit (ICU) admission. The aim of the present study was to describe the communication and visiting policies of Italian intensive care units (ICUs) during the first COVID-19 pandemic wave and national lockdown and compare these data with prepandemic conditions. Methods: A national web-based survey was conducted among 290 Italian hospitals. Each ICU (active between February 24 and May 31, 2020) was encouraged to complete an individual questionnaire inquiring the hospital/ICU structure/organization, communication/visiting habits and the role of clinical psychology prior to, and during the first COVID-19 pandemic wave. Results: Two hundred and nine ICUs from 154 hospitals (53% of the contacted hospitals) completed the survey (202 adult and 7 pediatric ICUs). Among adult ICUs, 60% were dedicated to COVID-19 patients, 21% were dedicated to patients without COVID-19 and 19% were dedicated to both categories (Mixed). A total of 11,102 adult patients were admitted to the participating ICUs during the study period and only approximately 6% of patients received at least one visit. Communication with family members was guaranteed daily through an increased use of electronic devices and was preferentially addressed to the same family member. Compared to the prepandemic period, clinical psychologists supported physicians more often regarding communication with family members. Fewer patients received at least one visit from family members in COVID and mixed-ICUs than in non-COVID ICUs, l (0 [0-6]%, 0 [0-4]% and 11 [2-25]%, respectively, p < 0.001). Habits of pediatric ICUs were less affected by the pandemic. Conclusions: Visiting policies of Italian ICUs dedicated to adult patients were markedly altered during the first COVID-19 wave. Remote communication was wi

Published
2022

31. Strong unique continuation and local asymptotics at the boundary for fractional elliptic equations

Author

De Luca, A, Felli, V, Vita, S, De Luca, Alessandra, Felli, Veronica, Vita, Stefano, De Luca, A, Felli, V, Vita, S, De Luca, Alessandra, Felli, Veronica, and Vita, Stefano

Abstract

We study local asymptotics of solutions to fractional elliptic equations at boundary points, under some outer homogeneous Dirichlet boundary condition. Our analysis is based on a blow-up procedure which involves some Almgren type monotonicity formulæ and provides a classification of all possible homogeneity degrees of limiting entire profiles. As a consequence, we establish a strong unique continuation principle from boundary points.

Published
2022

32. On some nonlocal issues: unique continuation from the boundary and capillarity problems for anisotropic kernels

Author

DE LUCA, A, FELLI, VERONICA, DE LUCA, ALESSANDRA, DE LUCA, A, FELLI, VERONICA, and DE LUCA, ALESSANDRA

Abstract

Lo scopo della presente tesi è quello di discutere i risultati ottenuti durante i miei studi di dottorato, principalmente rivolti a problemi non locali. Per prima cosa ci occupiamo di principi di continuazione unica forte ed espansioni asintotiche locali in determinati punti del bordo per soluzioni di due diverse classi di equazioni ellittiche. In particolare, partiamo con lo studio di una classe di equazioni ellittiche frazionarie in un dominio limitato sotto una condizione al contorno di Dirichlet omogenea esterna. Per fare ciò, sfruttiamo la procedura di estensione di Caffarelli-Silvestre, grazie alla quale il problema non locale può essere riformulato in modo equivalente come problema locale in una dimensione in più, generando un problema con condizioni miste. Dopodichè, utilizziamo un'idea classica di Garofalo e Lin per ottenere una condizione di raddoppio tramite una formula di monotonia per la funzione di Almgren. Per superare le difficoltà legate alla perdita di regolarità in corrispondenza della transizione tra le regioni di Dirichlet e di Neumann, introduciamo una nuova tecnica basata su un argomento di approssimazione, che ci permette di derivare una cosiddetta identità di tipo Pohozaev necessaria per stimare la derivata della funzione di Almgren . Otteniamo così un risultato di continuazione unica forte nel contesto locale, che viene a sua volta combinato con l’analisi di blow-up per dedurre espansioni asintotiche locali e, di conseguenza, una continuazione unica forte anche nel contesto non locale. Inoltre forniamo anche un risultato di continuazione unica forte dal bordo di una fessura per le soluzioni di una classe specifica di equazioni ellittiche del secondo ordine in un dominio limitato aperto con una frattura, su cui è assegnata una condizione al contorno di Dirichlet omogenea. Questo problema locale è correlato a un caso particolare dello studio descritto sopra, in virtù di una forte connessione tra questo tipo di problemi e i problem, The aim of the present thesis is to discuss the results obtained during my PhD studies, mainly devoted to nonlocal issues. We first deal with strong unique continuation principles and local asymptotic expansions at certain boundary points for solutions of two different classes of elliptic equations. We start the investigation by a class of fractional elliptic equations in a bounded domain under some outer homogeneous Dirichlet boundary condition. To do this, we exploit the Caffarelli-Silvestre extension procedure, which allows us to get an equivalent formulation of the nonlocal problem as a local problem in one dimension more, consisting in a mixed Dirichlet-Neumann boundary value problem. Then, we use a classical idea by Garofalo and Lin to obtain a doubling-type condition via a monotonicity formula for a suitable Almgren-type frequency function. To overcome the difficulties related to the lack of regularity at the Dirichlet-Neumann junction, we introduce a new technique based on an approximation argument, which leads us to derive a so-called Pohozaev-type identity needed to estimate the derivative of the Almgren function. Thus we gain a strong unique continuation result in the local context, which is in turn combined with blow-up arguments to deduce local asymptotics and, consequently, a strong unique continuation result in the nonlocal setting as well. We also provide a strong unique continuation result from the edge of a crack for the solutions to a specific class of second order elliptic equations in an open bounded domain with a fracture, on which a homogeneous Dirichlet boundary condition is prescribed, in the presence of potentials satisfying either a negligibility condition with respect to the inverse-square weight or some suitable integrability properties. This local problem is related to a particular case of the setting described above, by virtue of a strong connection between this type of problems and the mixed Dirichlet-Neumann boundary value problems.

Published
2022

35. 288 The effects of cardiovascular diseases and treatment on clinical course of hospitalized COVID-19 patients

Author

Prosperi, Silvia, primary, Birtolo, Lucia Ilaria, additional, Revivo, Mia Yarden, additional, Monosilio, Sara, additional, Cimino, Sara, additional, Filomena, Domenico, additional, Alfarano, Maria, additional, Manzi, Giovanna, additional, Neccia, Matteo, additional, Papa, Silvia, additional, Passarelli, Ilaria, additional, De Persis, Francesca, additional, De Luca, Alessandra, additional, Tanzilli, Alessandra, additional, Di Pietro, Gianluca, additional, Francavilla, Santi, additional, Improta, Riccardo, additional, Agnes, Gianluca, additional, Marcon, Serena, additional, Mariani, Marco Valerio, additional, Piro, Agostino, additional, Rizzo, Massimiliano, additional, Rachele, Edoardo Sebastian, additional, Straito, Martina, additional, Tocci, Marco, additional, Severino, Paolo, additional, Lavalle, Carlo, additional, Maestrini, Viviana, additional, Mancone, Massimo, additional, and Fedele, Francesco, additional

Published
2021
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38. Appropriation and Displacement: Postmemorial Articulations of the Italian Antifascist Resistance

Author

Pellegrini De Luca, Alessandra

Abstract

Building on Marianne Hirsch’s notion of “Postmemory” (1992), this article addresses the memory of the Italian Resistance, the 1943-45 partisan struggle against Nazi-Fascism. Although the Resistance was made up of people of varied political beliefs sharing an antifascist view and aiming at freeing their country from Nazi-Fascism, its memory remains divisive within the Republic. This article examines this controversial memory and offers a discussion of its ramifications in Italy today, arguing that the postmemory of the Resistance was informed by mechanisms of appropriation and displacement. The generations coming after 1945 were often overwhelmed by the stories of their predecessors: this undermined the political potential of the re-signification of the past in their time. The article contextualizes such displacement within the crisis of nation-states and discusses how, in a globalized context, historical memory can be instead a paradigm to connect to unfamiliar others in the name of common values., Status Quaestionis, N. 18 (2020): Narrating World War II: Transcultural Articulations of Postmemory in Literature and Other Media

Published
2020
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39. 342 Impact of temporary traffic bans on the risk of acute coronary syndromes in a large metropolitan area

Author

De Luca, Alessandra, primary, Proietti, Igino, additional, Trani, Carlo, additional, Berni, Andrea, additional, Sergi, Sonia Cristina, additional, Speciale, Giulio, additional, Tanzilli, Gaetano, additional, Tomai, Fabrizio, additional, Di Giosa, Alessandro, additional, Marchegiani, Giada, additional, Zoccai, Giuseppe Biondi, additional, and Versaci, Francesco, additional

Published
2020
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42. Cost and fee allocation in Italian civil procedure.

Author

De Luca, Alessandra

Subjects
Costs (Law) -- Laws, regulations and rules, Civil procedure -- Laws, regulations and rules, Legal aid -- Laws, regulations and rules, Government regulation
Published
2010

43. Abordagem baseada em capacidade: reinventar relacionamentos viáveis com pessoas e materiais.

Author

Sbordone, Maria Antonietta, Aparecida Sanches, Regina, De Luca, Alessandra, and Ilenia Amato, Carmela

Subjects
FASHION design, TEXTILE design, LOCAL culture, CLOTHING & dress, CONSUMERS
Abstract

Copyright of ModaPalavra e-periódico is the property of Universidade do Estado de Santa Catarina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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46. Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI): A Prospective Longitudinal Observational Study

Author

Maas, Andrew I. R., Menon, David K., Andelic, Nada, Kolibay, Felix, Kondziella, Daniel, Koskinen, Lars-Owe, Lagares, Alfonso, Lanyon, Linda, Laureys, Steven, Lecky, Fiona, Lefering, Rolf, Levi, Leon, Lightfoot, Roger, Andreassen, Lasse, Lingsma, Hester F., Loeckx, Dirk, Lohkamp, Laura-Nanna, Lötjönen, Jyrki, Lumenta, Christiano, Lyttle, Mark, Maas, Andrew, Maegele, Marc, Majdan, Marek, Manara, Alex, Andrews, Peter, Manley, Geoffrey T., Maréchal, Hugues, Martino, Costanza, Mascia, Luciana, Mauritz, Walter, McMahon, Catherine, Menovsky, Tomas, Mitchell, Patrick, Mladenov, Nikolay, Audibert, Gérard, Morganti-Kossmann, Cristina, Nelson, David, Neugebauer, Eddy, Newcombe, Virginia F., Oddo, Mauro, Oresic, Matej, Orzalesi, Vanni, Outtrim, Joanne G., Palotie, Aarno, Parizel, Paul, Audny, Anke, Payen, Jean-François, Perlbarg, Vincent, Peul, Wilco, Pichon, Nicolas, Piippo, Anna, Floury, Sébastien Pili, Ples, Horia, Polinder, Suzanne, Preiksaitis, Aidanas, Psota, Marek, Azouv, Philippe, Pullens, Pim, Puybasset, Louis, Ragauskas, Arminas, Raj, Rahul, Reiner, Michael, Rhodes, Jonathan K. J., Richardson, Sylvia, Ripatti, Samuli, Rocka, Saulius, Roosenfeld, Jeffrey, Barzó, Pál, Rosand, Jonathan, Rosenlund, Christina, Rosenthal, Guy, Rossaint, Rolf, Rossi, Sandra, Rueckert, Daniel, Rusnák, Martin, Rynkowski, Michal A., Sahuquillo, Juan, Sakowitz, Oliver, Beer, Ronny, Sandor, Janos, Schmidt, Silke, Schoechl, Herbert, Schou, Rico, Skandsen, Toril, Sonne, Morten, Schwendenwein, Elisabeth, Smeets, Dirk, Smieleweski, Peter, Söderberg, Jeannette, Bellander, Bo-Michael, Stamatakis, Emmanuel, Stanworth, Simon, Stefini, Roberto, Stevens, Robert, Stewart, William, Steyerberg, Ewout W., Stocchetti, Nino, Stummer, Walter, Szabó, József, Tascu, Alexandru, Belli, Antonio, Tenovuo, Olli, Theadom, Alice, Tibboel, Dick, Tolias, Christos M., Unterberg, Andreas, Vajkoczy, Peter, Vargiolu, Alessia, van der Naalt, Joukje, van Essen, Thomas, Van Hecke, Wim, Benali, Habib, Van Praag, Dominique, Van Roost, Dirk, Vandenbulcke, Tim, vande Hauwe, Luc, Van der Jagt, Mathieu, Vega, Emmanuel, Verheyden, Jan, Verma, Vishwajit, Vespa, Paul M., Vik, Anne, Berardino, Maurizio, Vilcinis, Rimantas, von Steinbüchel, Nicole, Vulekovic, Peter, Wang, Kevin K. W., Wildschut, Eno, Williams, Guy, Wilson, Mark, Wilson, Lindsay, Wolf, Stefan, Ylén, Peter, Beretta, Luigi, Zaaroor, Menashe, Zolfaghari, Parjam, Martin, Didier, D'Orio, Vincenzo, Damas, Pierre, Tshibanda, Jean-Flory Luaba, Brazinová, Alexandra, Binder, Harald, Brehar, Felix, Buki, Andras, Bullinger, Monika, Cakmak, Ela, Callebaut, Ina, Citerio, Giuseppe, Cameron, Peter, Lozano, Guillermo Carbayo, Carpenter, Keri L. H., Chieregato, Arturo, Coburn, Mark, Coles, Jonathan P., Cooper, Jamie, Cnossen, Maryse, Curry, Nicola, Czeiter, Endre, Czosnyka, Marek, Dahyot-Fitzelier, Claire, Damas, Francois, Dawes, Helen, De Keyser, Véronique, De Luca, Alessandra, de Ruiter, Godard C. W, De Witte, Olivier, Della Corte, Francesco, Demeter, Béla, Depreitere, Bart, Dippel, Diederik W. J., Dizdarevic, Kemal, Dreier, Jens P., Eapen, George, Ercole, Ari, Esser, Patrick, Fabricius, Martin, Feremans, Len, Hill, Sean, Feigin, Valery L., Fossi, Francesca, Forsyth, Faye, Florian, Stefan, Frisvold, Shirin Kordasti, Frosini, Caterina, Furmanov, Alex, Frantzén, Janek, Gadda, Davide, Gagliardo, Pablo, Legrand, Valerie, Galanaud, Damien, Gao, Guoyi, Ghuysen, Alexandre, Godbolt, Alison, Gonsorová, Veronika, Grigore, Zapulih, Gruen, Russel, Haagsma, Juanita A., Hallaert, Giorgio, Hadzic, Ermin, Sorgner, Annina, Haitsma, Ian, Hartings, Jed A., Helbok, Raimund, Helseth, Eirik, Hoefer, Stefan, Holling, Markus, Hunfeld, Maaike, Hutchinson, Peter J., Illés, Robert, CENTER-TBI Participants and Investigators, Janssens, Koen, Bovend'Eerdt, Thamar J. H., Jiang, Ji-yao, Jones, Kelly M., Kalala, Jean-Pierre, Kalovits, Ferenc, Kasprian, Gregor, Katila, Ari, Ketharanathan, Naomi, Kolias, Angelos G., Maas, A, Menon, D, Steyerberg, E, Citerio, G, Lecky, F, Manley, G, Hill, S, Legrand, V, Sorgner, A, CENTER-TBI Participants, Public Health, Maas, Ai, Menon, Dk, Steyerberg, Ew, Manley, Gt, Sorgner, A (CENTER-TBI Participants), Beretta, L., and Molecular Neuroscience and Ageing Research (MOLAR)

Subjects
Research design, Adult, Male, medicine.medical_specialty, Pathology, Comparative Effectiveness Research, Neurologi, Comparative effectiveness research, ta3112, Clinical study, Quality of life (healthcare), Traumatic brain injury, Health care, Outcome Assessment, Health Care, Medicine and Health Sciences, Protocol, Medicine, Humans, ddc:610, Longitudinal Studies, Prospective Studies, Israel, Intensive care medicine, Child, OUTCOMES, business.industry, Orvostudományok, Precision medicine, TRENDS, Clinical trial, Europe, Systematic review, Neurology, Research Design, Brain Injuries, Surgery, Observational study, Female, Neurology (clinical), Human medicine, Egészségtudományok, business, Tomography, X-Ray Computed
Abstract

Neurosurgery : official journal of the Congress of Neurological Surgeons 76(1), 67-80 (2015). doi:10.1227/NEU.0000000000000575, Published by Lippincott Williams & Wilkins, Baltimore, Md.

Published
2015

48. Decay estimates for the double dispersion equation with initial data in real Hardy spaces.

Author

D'Abbicco, Marcello and De Luca, Alessandra

Abstract

We study the Cauchy problem for the linear double dispersion equation u tt - Δ u tt + Δ 2 u - Δ u - Δ u t = 0 , t ≥ 0 , x ∈ R n and we derive long time decay estimates for the solution in L p spaces and in real Hardy spaces. We employ the obtained results to study the equation with nonlinearity Δ f (u) and nonsmooth f. [ABSTRACT FROM AUTHOR]

Published
2020
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49. Una rivoluzione all'inglese : La giustizia a dieci anni dal Constitutional Reform Act. Presentazione di Vincenzo Varano

Author

De Luca, Alessandra and De Luca, Alessandra

Subjects
Constitutional law
Abstract

A partire dal 1997 l'ordinamento inglese è stato interessato da una serie di leggi di rilevanza costituzionale, tra cui il Constitutional Reform Act, approvato nel 2005 per realizzare una piena separazione dei poteri in chiave di garanzia dell'indipendenza dei giudici. Dopo aver delineato un quadro complessivo dell'amministrazione della giustizia in Inghilterra, Una rivoluzione all'inglese. La giustizia a dieci anni dal Constitutional Reform Act si concentra sui tre profili toccati dalla legge: il Lord Chancellor, figura che, pur non essendo stata abolita, ha perso molte delle sue peculiarità e dei suoi poteri; la nomina dei giudici, adesso incentrata su una commissione ad hoc, e la UK Supreme Court, che ha sostituto la House of Lords come corte di vertice del Regno Unito. Il volume Una rivoluzione all'inglese. La giustizia a dieci anni dal Constitutional Reform Act è destinato a tutti gli studiosi interessati a conoscere questi sviluppi e il modo in cui stanno vivendo nella pratica.Alessandra De Luca(Firenze, 1972) è ricercatrice di diritto comparato presso il Dipartimento di Scienze Giuridiche dell'Università degli Studi di Firenze. Tra le sue pubblicazioni, L'accesso alla giustizia in Inghilterra fra stato e mercato (Torino 2007).

Published
2016

50. Access to justice in Italy.

Author

Varano, Vincenzo and De Luca, Alessandra

Subjects
Legal aid -- Laws, regulations and rules, Attorneys -- Fees, Government regulation, Italy. Constitution (Italy Const. art. 24) (Italy Const. art. 111)
Abstract

Abstract This article examines the present situation of access to justice in Italy, trying to highlight the most important trends concerning lawyer fees and legal aid, as well as the [...]

Published
2007

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