Search

Your search keyword '"Oliveri, F"' showing total 825 results
Start Over Author "Oliveri, F"
825 results on '"Oliveri, F"'

352. Bone (the B-1 Lancer)

Author

Oliveri, Frank

Subjects
AIRPLANE TYPE - B- 1
Abstract

illus

Published
1992

355. Warthog round at Gunsmoke ('91)

Author

Oliveri, Frank

Subjects
AIRPLANE TYPE - A-10, FIGHTER WEAPONS AND GUNNERY MEETS - Air Force
Abstract

tab illus

Published
1992

356. Swing-role fighter search begins

Author

Oliveri, Frank

Subjects
AIRPLANES, FIGHTER - United States, AIRCRAFT, EXPERIMENTAL - United States
Abstract

illus

Published
1992

357. Long reach of Wright Lab

Author

Oliveri, Frank

Subjects
AERONAUTICAL LABORATORIES, AERONAUTICAL RESEARCH - United States, RESEARCH AND DEVELOPMENT - Air Force - United States
Abstract

illus

Published
1992

358. Aerospace world

Author

Oliveri, Frank

Subjects
AVIATION, AIRCRAFT INDUSTRY AND TRADE, AEROSPACE INDUSTRY AND TRADE, SPACE PROGRAMS
Abstract

illus

Published
1991

370. Replacement for the F-16

Author

Oliveri, Frank

Subjects
AIRPLANES, FIGHTER - United States
Abstract

illus

Published
1992

371. Changes in hepatocellular carcinoma aggressiveness characteristics with an increase in tumor diameter

Author

Giovanni Raimondo, Alberto Masotto, Edoardo G. Giannini, Filippo Oliveri, Fabio Piscaglia, Francesco Giuseppe Foschi, Giuseppe Cabibbo, Gianpaolo Vidili, Francesco Azzaroli, Gian Ludovico Rapaccini, Antonio Gasbarrini, Rodolfo Sacco, Franco Trevisani, Gerardo Nardone, Maria Di Marco, Fabio Marra, Brian I. Carr, Eugenio Caturelli, Andrea Mega, Marco Zoli, Filomena Morisco, Vito Guerra, Gianluca Svegliati-Baroni, Fabio Farinati, Gabriele Missale, Rossella Donghia, Carr B.I., Guerra V., Donghia R., Farinati F., Giannini E.G., Piscaglia F., Rapaccini G.L., Di Marco M., Caturelli E., Zoli M., Sacco R., Cabibbo G., Marra F., Mega A., Morisco F., Gasbarrini A., Svegliati-Baroni G., Foschi F.G., Missale G., Masotto A., Nardone G., Raimondo G., Azzaroli F., Vidili G., Oliveri F., Trevisani F., Carr, B. I., Guerra, V., Donghia, R., Farinati, F., Giannini, E. G., Piscaglia, F., Rapaccini, G. L., Di Marco, M., Caturelli, E., Zoli, M., Sacco, R., Cabibbo, G., Marra, F., Mega, A., Morisco, F., Gasbarrini, A., Svegliati-Baroni, G., Foschi, F. G., Missale, G., Masotto, A., Nardone, G., Raimondo, G., Azzaroli, F., Vidili, G., Oliveri, F., and Trevisani, F.

Subjects
Male, Cancer Research, Pathology, medicine.medical_specialty, Carcinoma, Hepatocellular, Prognosi, Settore MED/12 - GASTROENTEROLOGIA, Clinical Biochemistry, size, Pathology and Forensic Medicine, evolution, medicine, Humans, Prospective Studies, HCC, Tumor size, business.industry, Liver Neoplasms, Carcinoma, Settore MED/09 - MEDICINA INTERNA, Hepatocellular, Middle Aged, Prognosis, medicine.disease, Portal vein thrombosis, trend, Oncology, Liver Neoplasm, Hepatocellular carcinoma, Female, business, Human
Abstract

Background: Hepatocellular carcinoma prognosis depends on both liver and tumor determinants, especially on maximum tumor diameter, multifocality, and presence of portal vein thrombosis, despite apparently complete tumor removal by resection or liver transplantation. Aims: To examine parameters of hepatocellular carcinoma aggressiveness as tumor size increases. Methods: A large hepatocellular carcinoma database was examined for trends in serum alpha-fetoprotein and the percentage of patients with macroscopic portal vein thrombosis or tumor multifocality. Results: A total of 13,016 hepatocellular carcinoma patients were identified having full tumor and survival data. Of these, 76.56% were male and 23.44% were female, with a median age of 64.4 years. We found that as the maximum tumor diameter increased, there was a significant trend for increased alpha-fetoprotein levels ( PConclusions: The greater fold-increases in alpha-fetoprotein and portal vein thrombosis compared with increases in maximum tumor diameter imply that hepatocellular carcinoma characteristics may change with increasing size to a more aggressive phenotype, suggesting that follow-up tumor sampling might be useful, in addition to baseline tumor sampling, for optimal therapeutic choices to be made.

Published
2021

375. Potential feasibility of atezolizumab-bevacizumab therapy in patients with hepatocellular carcinoma treated with tyrosine-kinase inhibitors

Author

Benedetta Stefanini, Laura Bucci, Valentina Santi, Nicola Reggidori, Davide Rampoldi, Lorenzo Lani, Alessandro Granito, Angelo Sangiovanni, Giuseppe Cabibbo, Fabio Farinati, Claudia Campani, Francesco Giuseppe Foschi, Gianluca Svegliati-Baroni, Giovanni Raimondo, Antonio Gasbarrini, Andrea Mega, Elisabetta Biasini, Rodolfo Sacco, Filomena Morisco, Eugenio Caturelli, Gianpaolo Vidili, Francesco Azzaroli, Edoardo G. Giannini, Gian Ludovico Rapaccini, Maurizia Rossana Brunetto, Alberto Masotto, Gerardo Nardone, Mariella Di Marco, Donatella Magalotti, Franco Trevisani, Maurizio Biselli, Paolo Caraceni, Annagiulia Gramenzi, Francesco Tovoli, Luca Muratori, Francesca Benevento, Gloria Allegrini, Calogero Cammà, Ciro Celsa, Paolo Giuffrida, Caterina Stornello, Mauro Grova, Carmelo Marco Giacchetto, Gabriele Rancatore, Maria Vittoria Grassini, Valentina Adotti, Stefano Gitto, Fabio Marra, Martina Rosi, Vittoria Bevilacqua, Alberto Borghi, Andrea Casadei Gardini, Fabio Conti, Anna Chiara Dall'Aglio, Giorgio Ercolani, Federica Mirici, Nicoletta de Matthaeis, Francesca Romana Ponziani, Gabriele Missale, Andrea Olivani, Maria Guarino, Valentina Cossiga, Mario Capasso, Ester Marina Cela, Antonio Facciorusso, Valentina Lauria, Giorgia Ghittoni, Giorgio Pelecca, Fabrizio Chegai, Fabio Coratella, Mariano Ortenzi, Serena Dell'Isola, Maria Stella Franzè, Carlo Saitta, Assunta Sauchella, Elton Dajti, Federico Ravaioli, Giulia Pieri, Maria Corina Plaz Torres, Filippo Oliveri, Gabriele Ricco, Veronica Romagnoli, Alessandro Inno, Fabiana Marchetti, Pietro Coccoli, Antonio Malerba, Alberta Cappelli, Rita Golfieri, Cristina Mosconi, null Matteo Renzulli, Stefanini, B., Bucci, L., Santi, V., Reggidori, N., Rampoldi, D., Lani, L., Granito, A., Sangiovanni, A., Cabibbo, G., Farinati, F., Campani, C., Foschi, F. G., Svegliati-Baroni, G., Raimondo, G., Gasbarrini, A., Mega, A., Biasini, E., Sacco, R., Morisco, F., Caturelli, E., Vidili, G., Azzaroli, F., Giannini, E. G., Rapaccini, G. L., Brunetto, M. R., Masotto, A., Nardone, G., Di Marco, M., Magalotti, D., Trevisani, F., Biselli, M., Caraceni, P., Gramenzi, A., Tovoli, F., Muratori, L., Benevento, F., Allegrini, G., Camma, C., Celsa, C., Giuffrida, P., Stornello, C., Grova, M., Giacchetto, C. M., Rancatore, G., Grassini, M. V., Adotti, V., Gitto, S., Marra, F., Rosi, M., Bevilacqua, V., Borghi, A., Gardini, A. C., Conti, F., Dall'Aglio, A. C., Ercolani, G., Mirici, F., de Matthaeis, N., Ponziani, F. R., Missale, G., Olivani, A., Guarino, M., Cossiga, V., Capasso, M., Cela, E. M., Facciorusso, A., Lauria, V., Ghittoni, G., Pelecca, G., Chegai, F., Coratella, F., Ortenzi, M., Dell'Isola, S., Franze, M. S., Saitta, C., Sauchella, A., Dajti, E., Ravaioli, F., Pieri, G., Torres, M. C. P., Oliveri, F., Ricco, G., Romagnoli, V., Inno, A., Marchetti, F., Coccoli, P., Malerba, A., Cappelli, A., Golfieri, R., Mosconi, C., Matteo, Renzulli, Stefanini, Benedetta, Bucci, Laura, Santi, Valentina, Reggidori, Nicola, Rampoldi, Davide, Lani, Lorenzo, Granito, Alessandro, Sangiovanni, Angelo, Cabibbo, Giuseppe, Farinati, Fabio, Campani, Claudia, Foschi, Francesco Giuseppe, Svegliati-Baroni, Gianluca, Raimondo, Giovanni, Gasbarrini, Antonio, Mega, Andrea, Biasini, Elisabetta, Sacco, Rodolfo, Morisco, Filomena, Caturelli, Eugenio, Vidili, Gianpaolo, Azzaroli, Francesco, Giannini, Edoardo G, Rapaccini, Gian Ludovico, Brunetto, Maurizia Rossana, Masotto, Alberto, Nardone, Gerardo, Di Marco, Mariella, Magalotti, Donatella, and Trevisani, Franco

Subjects
Atezolizumab-bevacizumab, Clinical Trials as Topic, Antineoplastic Combined Chemotherapy Protocol, Carcinoma, Hepatocellular, Systemic therapy, Hepatology, Hepatocellular carcinoma, Tirosin-kinase inhibitor, Liver Neoplasms, Gastroenterology, Bevacizumab, Feasibility Studie, Tyrosine, Human
Abstract

Background: The combination of atezolizumab-bevacizumab has been proven to be superior to sorafenib for the treatment of unresectable hepatocellular carcinoma not amenable to locoregional treatments, be-coming the standard of care of systemic therapy.Aim: This study aimed at assessing real-world feasibility of atezolizumab-bevacizumab in patients treated with tyrosine-kinase inhibitors.Methods: Among 1447 patients treated with tyrosine-kinase inhibitors from January 2010 to December 2020, we assessed the percentage of those potentially eligible to atezolizumab-bevacizumab (according to IMbrave-150 trial criteria), and the overall survival of eligible and non-eligible patients.Results: 422 (29%) patients were qualified for atezolizumab-bevacizumab therapy. The main exclusion causes were Child-Pugh class and Performance Status. Adopting the more permissive inclusion criteria of SHARP trial, 535 patients became eligible. The median overall survival of tyrosine-kinase inhibitors patients was 14.9 months, longer in eligible patients than in their counterpart due to better baseline liver function and oncological features.Conclusion: Real-world data indicate that less than one-third of hepatocellular carcinoma patients treated with tyrosine-kinase inhibitors are potentially eligible to atezolizumab-bevacizumab according to the reg-istration trial criteria. These patients have a longer survival than the non-eligible ones. If the selection criteria of atezolizumab-bevacizumab trial are maintained in clinical practice, tyrosine-kinase inhibitors will remain the most used systemic therapy for hepatocellular carcinoma patients.(c) 2022 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.

Published
2022
Full Text
View/download PDF

376. [formula omitted]-induced dynamics and large time behaviors.

Author

Bagarello, F., Di Salvo, R., Gargano, F., and Oliveri, F.

Subjects
*HAMILTONIAN systems, *QUANTUM mechanics, *DEGREES of freedom, *HEISENBERG model, *BIOLOGICAL systems
Abstract

In some recent papers, the so called ( H , ρ ) -induced dynamics of a system S whose time evolution is deduced adopting an operatorial approach, borrowed in part from quantum mechanics, has been introduced. Here, H is the Hamiltonian for S , while ρ is a certain rule applied periodically (or not) on S . The analysis carried on throughout this paper shows that, replacing the Heisenberg dynamics with the ( H , ρ ) -induced one, we obtain a simple, and somehow natural, way to prove that some relevant dynamical variables of S may converge, for large t , to certain asymptotic values. This cannot be so, for finite dimensional systems, if no rule is considered. In this case, in fact, any Heisenberg dynamics implemented by a suitable hermitian operator H can only give an oscillating behavior. We prove our claims both analytically and numerically for a simple system with two degrees of freedom, and then we apply our general scheme to a model describing a biological system of bacteria living in a two-dimensional lattice, where two different choices of the rule are considered. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

377. Quantification of serum markers of hepatitis B (HBV) and Delta virus (HDV) infections in patients with chronic HDV infection.

Author

Ricco, G., Popa, D. C., Cavallone, D., Iacob, S., Salvati, A., Tabacelia, D., Oliveri, F., Mascolo, G., Bonino, F., Yuan, Q., Xia, N.‐S., Gheorghe, L., and Brunetto, M. R.

Subjects
*HEPATITIS B, *HEPATITIS B treatment, *ANTIVIRAL agents, *BLOOD serum analysis, *CLINICAL trials, *DIAGNOSIS
Abstract

Summary: The interplay between hepatitis B (HBV) and delta (HDV) viruses is complex and not always characterized during chronic HDV infection. We assessed the clinical usefulness of new quantitative assays for HBV and HDV serum markers in a retrospective cross‐sectional study. Sera obtained from 122 HDV genotype 1 and HBV genotype D coinfected, anti‐HIV‐negative patients (71 males; median age 49.8 [21.7‐66.9] years), recruited consecutively in two geographical areas (Italy 69 patients, Romania 53 patients) with different HBV and HDV epidemiology, were tested for HBsAg, HBV‐DNA, HBcrAg, total anti‐HBc, HDV‐RNA, IgM and total anti‐HDV using quantitative assays. Cirrhosis, which showed comparable prevalence in the two cohorts, was diagnosed in 97 of 122 (79.5%) patients. At multivariate analysis, cirrhosis was associated with lower total anti‐HBc/IgM anti‐HDV ratio (OR 0.990, 95% CI 0.981‐0.999, P = .038), whereas disease activity was associated with higher total anti‐HDV (OR 10.105, 95% CI 1.671‐61.107, P = .012) and HDV‐RNA levels (OR 2.366, 95% CI 1.456‐3.844, P = .001). HDV‐RNA serum levels showed a positive correlation with HBV‐DNA (ρ = 0.276, P = .005), HBsAg (ρ = 0.404, P < .001) and HBcrAg (ρ = 0.332, P < .001). The combined quantitative profiling of HBV and HDV serum markers identifies specific patterns associated with activity and stage of chronic hepatitis D (CHD). HDV pathogenicity depends on the underlying active HBV infection in spite of the inhibition of its replication. HDV‐RNA, IgM anti‐HDV, total anti‐HDV, total anti‐HBc, HBsAg and HBcrAg serum levels qualify for prospective studies to predict progressive CHD and identify candidates to antiviral therapy. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

378. 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
Full Text
View/download PDF

379. Practicality and potential restrictions of unresectable hepatocellular carcinoma prognostic index

Author

Coskun Ozer Demirtas, Gabrielle Ricco, Osman Cavit Ozdogan, Feyyaz Baltacioglu, Tunc Ones, Perran Fulden Yumuk, Ender Dulundu, Sinan Uzun, Pierro Colombatto, Filippo Oliveri, Maurizia Rosanna Brunetto, Feyza Gunduz, and DEMİRTAŞ C. Ö. , Ricco G., ÖZDOĞAN O. C. , BALTACIOĞLU F., ÖNEŞ T., YUMUK P. F. , DULUNDU E., Uzun S., Colombatto P., Oliveri F., et al.

Subjects
Internal Diseases, Internal Medicine Sciences, Carcinoma, Hepatocellular, Klinik Tıp, Hepatology, GASTROENTEROLOGY & HEPATOLOGY, Liver Neoplasms, Gastroenterology, Dahili Tıp Bilimleri, Gastroenterology and Hepatology, CLINICAL MEDICINE, Sağlık Bilimleri, Prognosis, İç Hastalıkları, GASTROENTEROLOJİ VE HEPATOLOJİ, Clinical Medicine (MED), Tıp, Hepatoloji, Gastroenteroloji, Gastroenteroloji-(Hepatoloji), Health Sciences, Medicine, Humans, Klinik Tıp (MED), Chemoembolization, Therapeutic
Published
2022
Full Text
View/download PDF

380. New antenna design approach – 3D polymer printing and metallization. experimental test at 14–18 GHz.

Author

Kyovtorov, V., Georgiev, I., Margenov, S., Stoychev, D., Oliveri, F., and Tarchi, D.

Subjects
*ANTENNA design, *THREE-dimensional printing, *POLYMERS, *ELECTROCHEMISTRY, *METAL coating
Abstract

This paper proves a new approach for rapid prototyping of radio antennas through 3D printing and chemical metallization. For this purpose, a standard metal pyramidal horn prototype is compared with its 3D printed replica. Three different 3D polymer printers are tested. The printed samples are assessed nondestructively by an X-ray Industrial Computed Tomography (CT) scanner, and then metalized via chemical deposition and chemical-electrochemical deposition. Copper with two different layer thicknesses and nickel materials are deployed and verified as a metallization opportunity. Again the CT scanner, X-ray fluorescent analysis and nanoindentation technique were used to perform the metallization quality estimation. As a result, a qualitative polymer prototype was produced having weight of 13 g – ten times lighter than the original. The prototype was successfully metalized and was able to be soldered. The radio-measurement comparison with the metal original for frequencies 14–18 GHz showed no significant differences. Finally, a simple dynamometric test confirmed the bonding between the metal and the polymer. To the best of our knowledge this is the first known comprehensive analysis of the possibility to print 3D lightweight wideband polymer antenna prototypes with a stable chemical metallization and radio properties very close to the original at 14–18 GHz. [ABSTRACT FROM AUTHOR]

Published
2017
Full Text
View/download PDF

381. (H, ρ)-induced dynamics and the quantum game of life.

Author

Bagarello, F., Di Salvo, R., Gargano, F., and Oliveri, F.

Subjects
*VIDEO games, *QUANTUM mechanics, *QUANTUM theory, *HEISENBERG model, *CELLULAR automata, *OPERATOR equations (Quantum mechanics)
Abstract

We propose an extended version of quantum dynamics for a certain system S , whose evolution is ruled by a Hamiltonian H , its initial conditions, and a suitable set ρ of rules , acting repeatedly on S . The resulting dynamics is not necessarily periodic or quasi-periodic, as one could imagine for conservative systems with a finite number of degrees of freedom. In fact, it may have quite different behaviors depending on the explicit forms of H, ρ as well as on the initial conditions. After a general discussion on this ( H, ρ )- induced dynamics , we apply our general ideas to extend the classical game of life, and we analyze several aspects of this extension. [ABSTRACT FROM AUTHOR]

Published
2017
Full Text
View/download PDF

382. Characteristics and survival of patients with primary biliary cholangitis and hepatocellular carcinoma

Author

Edoardo G. Giannini, Giulia Pieri, Sara Labanca, Maria Corina Plaz Torres, Antonio Gasbarrini, Elisabetta Biasini, Claudia Campani, Nora Cazzagon, Francesco Giuseppe Foschi, Andrea Mega, Alberto Masotto, Giovanni Raimondo, Gian Ludovico Rapaccini, Rodolfo Sacco, Eugenio Caturelli, Maria Guarino, Francesco Tovoli, Gianpaolo Vidili, Maurizia Rossana Brunetto, Gerardo Nardone, Gianluca Svegliati-Baroni, Donatella Magalotti, Francesco Azzaroli, Giuseppe Cabibbo, Maria Di Marco, Angelo Sangiovanni, Franco Trevisani, Maurizio Biselli, Paolo Caraceni, Annagiulia Gramenzi, Francesca Benevento, Alessandro Granito, Luca Muratori, Fabio Piscaglia, Federica Bertellini, Fabio Farinati, Giorgio Palano, Filippo Pelizzaro, Barbara Penzo, Elisa Pinto, Gloria Allegrini, Calogero Cammà, Ciro Celsa, Paolo Giuffrida, Caterina Stornello, Mauro Grova, Carmelo Marco Giacchetto, Gabriele Rancatore, Maria Vittoria Grassini, Valentina Adotti, Stefano Gitto, Fabio Marra, Martina Rosi, Vittoria Bevilacqua, Alberto Borghi, Andrea Casadei Gardini, Fabio Conti, Lucia Napoli, Marco Domenicali, Maria Teresa Migliano, Nicoletta de Matthaeis, Francesca Romana Ponziani, Andrea Olivani, Gabriele Missale, Valentina Cossiga, Mario Capasso, Filomena Morisco, Ester Marina Cela, Antonio Facciorusso, Valentina Lauria, Giorgia Ghittoni, Giorgio Pelecca, Fabrizio Chegai, Fabio Coratella, Mariano Ortenzi, Serena Dell'Isola, Maria Stella Franzè, Carlo Saitta, Assunta Sauchella, Elton Dajti, Federico Ravaioli, Filippo Oliveri, Gabriele Ricco, Veronica Romagnoli, Alessandro Inno, Fabiana Marchetti, Pietro Coccoli, Antonio Malerba, Alberta Cappelli, Rita Golfieri, Cristina Mosconi, Matteo Renzulli, Giannini, Edoardo G, Pieri, Giulia, Labanca, Sara, Plaz Torres, Maria Corina, Gasbarrini, Antonio, Biasini, Elisabetta, Campani, Claudia, Cazzagon, Nora, Foschi, Francesco Giuseppe, Mega, Andrea, Masotto, Alberto, Raimondo, Giovanni, Rapaccini, Gian Ludovico, Sacco, Rodolfo, Caturelli, Eugenio, Guarino, Maria, Tovoli, Francesco, Vidili, Gianpaolo, Brunetto, Maurizia Rossana, Nardone, Gerardo, Svegliati-Baroni, Gianluca, Magalotti, Donatella, Azzaroli, Francesco, Cabibbo, Giuseppe, Di Marco, Maria, Sangiovanni, Angelo, Trevisani, Franco, Giannini, E. G., Pieri, G., Labanca, S., Plaz Torres, M. C., Gasbarrini, A., Biasini, E., Campani, C., Cazzagon, N., Foschi, F. G., Mega, A., Masotto, A., Raimondo, G., Rapaccini, G. L., Sacco, R., Caturelli, E., Guarino, M., Tovoli, F., Vidili, G., Brunetto, M. R., Nardone, G., Svegliati-Baroni, G., Magalotti, D., Azzaroli, F., Cabibbo, G., Di Marco, M., Sangiovanni, A., Trevisani, F., Biselli, M., Caraceni, P., Gramenzi, A., Benevento, F., Granito, A., Muratori, L., Piscaglia, F., Bertellini, F., Farinati, F., Palano, G., Pelizzaro, F., Penzo, B., Pinto, E., Allegrini, G., Camma, C., Celsa, C., Giuffrida, P., Stornello, C., Grova, M., Giacchetto, C. M., Rancatore, G., Grassini, M. V., Adotti, V., Gitto, S., Marra, F., Rosi, M., Bevilacqua, V., Borghi, A., Gardini, A. C., Conti, F., Napoli, L., Domenicali, M., Migliano, M. T., de Matthaeis, N., Ponziani, F. R., Olivani, A., Missale, G., Cossiga, V., Capasso, M., Morisco, F., Cela, E. M., Facciorusso, A., Lauria, V., Ghittoni, G., Pelecca, G., Chegai, F., Coratella, F., Ortenzi, M., Dell'Isola, S., Franze, M. S., Saitta, C., Sauchella, A., Dajti, E., Ravaioli, F., Oliveri, F., Ricco, G., Romagnoli, V., Inno, A., Marchetti, F., Coccoli, P., Malerba, A., Cappelli, A., Golfieri, R., Mosconi, C., and Renzulli, M.

Subjects
Male, Carcinoma, Hepatocellular, Cholestatic liver disease, Outcome, Surveillance, Survival, Treatment, Hepatology, Prognosi, Liver Cirrhosis, Biliary, Risk Factor, Settore MED/12 - GASTROENTEROLOGIA, Liver Neoplasms, Gastroenterology, Prognosis, Risk Factors, Humans, Female, Human, Aged
Abstract

Background: Comprehensive and contemporary data pertaining large populations of patients with Primary Biliary Cholangitis (PBC) and hepatocellular carcinoma (HCC) are missing. Aim: To describe main characteristics and outcome of PBC patients with HCC diagnosed in the new millennium. Methods: Analysing the Italian Liver Cancer registry we identified 80 PBC patients with HCC diagnosed after the year 2000, and described their clinical characteristics, access to treatment and survival. Results: Median age of patients was 71 years and 50.0% were males. Cirrhosis was present in 86.3% of patients, being well-compensated in 58.0%. Median HCC diameter was smaller in patients under surveillance (2.6vs 4.0cm, P=0.007). Curative treatment, feasible in 50.0% of patients, was associated with improved survival compared to palliative and supportive care (42vs 33vs 6 months, P

Published
2022

383. Surveillance for hepatocellular carcinoma with a 3-months interval in 'extremely high-risk' patients does not further improve survival

Author

Filippo Pelizzaro, Giulia Peserico, Marco D'Elia, Nora Cazzagon, Francesco Paolo Russo, Alessandro Vitale, Edoardo G. Giannini, Manuela Piccinnu, Gian Ludovico Rapaccini, Maria Di Marco, Eugenio Caturelli, Marco Zoli, Rodolfo Sacco, Giuseppe Cabibbo, Fabio Marra, Andrea Mega, Filomena Morisco, Antonio Gasbarrini, Gianluca Svegliati-Baroni, Francesco Giuseppe Foschi, Andrea Olivani, Alberto Masotto, Gerardo Nardone, Giovanni Raimondo, Francesco Azzaroli, Gianpaolo Vidili, Filippo Oliveri, Franco Trevisani, Fabio Farinati, Maurizio Biselli, Paolo Caraceni, Francesca Garuti, Annagiulia Gramenzi, Andrea Neri, Valentina Santi, Fabio Piscaglia, Francesco Tovoli, Alessandro Granito, Luca Muratori, Francesca Benevento, Elton Dajti, Giovanni Marasco, Federico Ravaioli, Alberta Cappelli, Rita Golfieri, Cristina Mosconi, Matteo Renzulli, Angela Imondi, Anna Sartori, Barbara Penzo, Elisa Pinto, Ester Marina Cela, Antonio Facciorusso, Valentina Cacciato, Edoardo Casagrande, Alessandro Moscatelli, Gaia Pellegatta, Nicoletta De Matthaeis, Gloria Allegrini, Valentina Lauria, Giorgia Ghittoni, Giorgio Pelecca, Fabrizio Chegai, Fabio Coratella, Mariano Ortenzi, Gabriele Missale, Alessandro Inno, Fabiana Marchetti, Anita Busacca, Calogero Cammà, Vincenzo Di Martino, Giacomo Emanuele Maria Rizzo, Maria Stella Franzè, Carlo Saitta, Assunta Sauchella, Vittoria Bevilacqua, Alberto Borghi, Andrea Casadei Gardini, Fabio Conti, Anna Chiara Dall'aglio, Giorgio Ercolani, Federica Mirici, Claudia Campani, Chiara Di Bonaventura, Stefano Gitto, Pietro Coccoli, Antonio Malerba, Maria Guarino, Maurizia Brunetto, Veronica Romagnoli, Pelizzaro, F., Peserico, G., D'Elia, M., Cazzagon, N., Russo, F. P., Vitale, A., Giannini, E. G., Piccinnu, M., Rapaccini, G. L., Di Marco, M., Caturelli, E., Zoli, M., Sacco, R., Cabibbo, G., Marra, F., Mega, A., Morisco, F., Gasbarrini, A., Svegliati-Baroni, G., Foschi, F. G., Olivani, A., Masotto, A., Nardone, G., Raimondo, G., Azzaroli, F., Vidili, G., Oliveri, F., Trevisani, F., Farinati, F., Biselli, M., Caraceni, P., Garuti, F., Gramenzi, A., Neri, A., Santi, V., Piscaglia, F., Tovoli, F., Granito, A., Muratori, L., Benevento, F., Dajti, E., Marasco, G., Ravaioli, F., Cappelli, A., Golfieri, R., Mosconi, C., Renzulli, M., Imondi, A., Sartori, A., Penzo, B., Pinto, E., Cela, E. M., Facciorusso, A., Cacciato, V., Casagrande, E., Moscatelli, A., Pellegatta, G., De Matthaeis, N., Allegrini, G., Lauria, V., Ghittoni, G., Pelecca, G., Chegai, F., Coratella, F., Ortenzi, M., Missale, G., Inno, A., Marchetti, F., Busacca, A., Camma, C., Di Martino, V., Rizzo, G. E. M., Franze, M. S., Saitta, C., Sauchella, A., Bevilacqua, V., Borghi, A., Casadei Gardini, A., Conti, F., Dall'Aglio, A. C., Ercolani, G., Mirici, F., Campani, C., Di Bonaventura, C., Gitto, S., Coccoli, P., Malerba, A., Guarino, M., Brunetto, M., Romagnoli, V., Pelizzaro, Filippo, Peserico, Giulia, D'Elia, Marco, Cazzagon, Nora, Russo, Francesco Paolo, Vitale, Alessandro, Giannini, Edoardo G., Piccinnu, Manuela, Rapaccini, Gian Ludovico, Di Marco, Maria, Caturelli, Eugenio, Zoli, Marco, Sacco, Rodolfo, Cabibbo, Giuseppe, Marra, Fabio, Mega, Andrea, Morisco, Filomena, Gasbarrini, Antonio, Svegliati-Baroni, Gianluca, Foschi, Francesco Giuseppe, Olivani, Andrea, Masotto, Alberto, Nardone, Gerardo, Raimondo, Giovanni, Azzaroli, Francesco, Vidili, Gianpaolo, Oliveri, Filippo, Trevisani, Franco, Farinati, Fabio, Biselli, Maurizio, Caraceni, Paolo, Garuti, Francesca, Gramenzi, Annagiulia, Neri, Andrea, Santi, Valentina, Piscaglia, Fabio, Tovoli, Francesco, Granito, Alessandro, Muratori, Luca, Benevento, Francesca, Dajti, Elton, Marasco, Giovanni, Ravaioli, Federico, Cappelli, Alberta, Golfieri, Rita, Mosconi, Cristina, Renzulli, Matteo, Imondi, Angela, Sartori, Anna, Penzo, Barbara, Pinto, Elisa, Cela, Ester Marina, Facciorusso, Antonio, Cacciato, Valentina, Casagrande, Edoardo, Moscatelli, Alessandro, Pellegatta, Gaia, De Matthaeis, Nicoletta, Allegrini, Gloria, Lauria, Valentina, Ghittoni, Giorgia, Pelecca, Giorgio, Chegai, Fabrizio, Coratella, Fabio, Ortenzi, Mariano, Missale, Gabriele, Inno, Alessandro, Marchetti, Fabiana, Busacca, Anita, Cammà, Calogero, Di Martino, Vincenzo, Rizzo, Giacomo Emanuele Maria, Franzè, Maria Stella, Saitta, Carlo, Sauchella, Assunta, Bevilacqua, Vittoria, Borghi, Alberto, Casadei Gardini, Andrea, Conti, Fabio, Dall'aglio, Anna Chiara, Ercolani, Giorgio, Mirici, Federica, Campani, Claudia, Di Bonaventura, Chiara, Gitto, Stefano, Coccoli, Pietro, Malerba, Antonio, Guarino, Maria, Brunetto, Maurizia, and Romagnoli, Veronica

Subjects
medicine.medical_specialty, Carcinoma, Hepatocellular, Survival, Hepatocellular carcinoma, Cancer stage, Surveillance interval, Internal medicine, medicine, Humans, Propensity Score, Survival analysis, High risk patients, Hepatology, business.industry, Liver Neoplasms, Settore MED/09 - MEDICINA INTERNA, Gastroenterology, Patient survival, medicine.disease, Survival Analysis, Propensity score matching, Survival Analysi, Liver cancer, business, Median survival, Human
Abstract

Background An enhanced surveillance schedule has been proposed for cirrhotics with viral etiology, who are considered at extremely high-risk of hepatocellular carcinoma (HCC). Aims We compared the 3- and 6-months surveillance interval, evaluating cancer stage at diagnosis and patient survival. Methods Data of 777 HBV and HCV cirrhotic patients with HCC diagnosed under a 3-months (n = 109, 3MS group) or a 6-months (n = 668, 6MS group) surveillance were retrieved from the Italian Liver Cancer database. Survival in the 3MS group was considered as observed and adjusted for lead-time bias, and survival analysis was repeated after a propensity score matching. Results The 3-months surveillance interval neither reduced the share of patients diagnosed outside the Milano criteria, nor increased their probability to receive curative treatments. The median survival of 6MS patients (55.0 months [45.9–64.0]) was not significantly different from the observed (47.0 months [35.0–58.9]; p = 0.43) and adjusted (44.9 months [33.4–56.4]; p = 0.30) survival of 3MS patients. A propensity score analysis confirmed the absence of a survival advantage for 3MS patients. Conclusions A tightening of surveillance schedule does not increase the diagnosis of early-stage tumors, the feasibility of curative treatments and the survival. Therefore, we should maintain the 6-months interval in the surveillance of viral cirrhotics.

Published
2022

384. Nonlinear convective motion of the asthenosphere and the lithosphere melting: a model for the birth of a volcano

Author

C. Godano, S. De Nicola, R. Fedele, S. Carlino, F. Oliveri, Godano, C, De Nicola, S, Fedele, R, Carlino, S, and Oliveri, F

Subjects
Fluid Flow and Transfer Processes, General Physics and Astronomy
Abstract

The processes of heat transfer occurring between the Earth’s asthenosphere and lithosphere are responsible for partial melting of rocks, leading to the magma generation and its migration and segregation in the crust and, possibly, to volcanoes generation at the surface. Convection is the dominant mechanism regulating the heat transfer from the asthenosphere to the lithosphere, although many aspects of the whole process are not yet clear. Therefore, the knowledge of the physical processes leading to the melting of the lithospheric rocks has important consequences in understanding the interior Earth dynamics, the surface volcanic dynamics, and its related hazards. Rock melting occurs when the temperature gradient meets the rock solidus. Here, we propose a nonlinear convective 1D analytical model (representing an approximation of more 3D complex models). The steady-state solution of our equation is in good agreement with the estimated geotherms of the asthenosphere. A perturbative approach leads to a heat swelling at the boundary between asthenosphere and lithosphere able to determine its melting and the birth of a volcano.

Published
2022

386. Epidemiological trends and trajectories of MAFLD-associated hepatocellular carcinoma 2002-2033: The ITA.LI.CA database

Author

Alessandro, Vitale, Gianluca, Svegliati-Baroni, Alessio, Ortolani, Monica, Cucco, Giulio V, Dalla Riva, Edoardo G, Giannini, Fabio, Piscaglia, Gianludovico, Rapaccini, Mariella, Di Marco, Eugenio, Caturelli, Marco, Zoli, Rodolfo, Sacco, Giuseppe, Cabibbo, Fabio, Marra, Andrea, Mega, Filomena, Morisco, Antonio, Gasbarrini, Francesco Giuseppe, Foschi, Gabriele, Missale, Alberto, Masotto, Gerardo, Nardone, Giovanni, Raimondo, Francesco, Azzaroli, Gianpaolo, Vidili, Filippo, Oliveri, Filippo, Pelizzaro, Rafael, Ramirez Morales, Umberto, Cillo, Franco, Trevisani, Luca, Miele, Giulio, Marchesini, Fabio, Farinati, Alessandro, Di Bucchianico, Vitale, A., Svegliati-Baroni, G., Ortolani, A., Cucco, M., Dalla Riva, G. V., Giannini, E. G., Piscaglia, F., Rapaccini, G., Di Marco, M., Caturelli, E., Zoli, M., Sacco, R., Cabibbo, G., Marra, F., Mega, A., Morisco, F., Gasbarrini, A., Foschi, F. G., Missale, G., Masotto, A., Nardone, G., Raimondo, G., Azzaroli, F., Vidili, G., Oliveri, F., Pelizzaro, F., Ramirez Morales, R., Cillo, U., Trevisani, F., Miele, L., Marchesini, G., Farinati, F., Alessandro Vitale, Gianluca Svegliati-Baroni, Alessio Ortolani, Monica Cucco, Giulio V Dalla Riva, Edoardo G Giannini, Fabio Piscaglia, Gianludovico Rapaccini, Mariella Di Marco, Eugenio Caturelli, Marco Zoli, Rodolfo Sacco, Giuseppe Cabibbo, Fabio Marra, Andrea Mega, Filomena Morisco, Antonio Gasbarrini, Francesco Giuseppe Foschi, Gabriele Missale, Alberto Masotto, Gerardo Nardone, Giovanni Raimondo, Francesco Azzaroli, Gianpaolo Vidili, Filippo Oliveri, Filippo Pelizzaro, Rafael Ramirez Morales, Umberto Cillo, Franco Trevisani, Luca Miele, Giulio Marchesini, Fabio Farinati, Vitale, Alessandro, Svegliati-Baroni, Gianluca, Ortolani, Alessio, Cucco, Monica, Dalla Riva, Giulio V, Giannini, Edoardo G, Piscaglia, Fabio, Rapaccini, Gianludovico, Di Marco, Mariella, Caturelli, Eugenio, Zoli, Marco, Sacco, Rodolfo, Cabibbo, Giuseppe, Marra, Fabio, Mega, Andrea, Morisco, Filomena, Gasbarrini, Antonio, Foschi, Francesco Giuseppe, Missale, Gabriele, Masotto, Alberto, Nardone, Gerardo, Raimondo, Giovanni, Azzaroli, Francesco, Vidili, Gianpaolo, Oliveri, Filippo, Pelizzaro, Filippo, Ramirez Morales, Rafael, Cillo, Umberto, Trevisani, Franco, Miele, Luca, Marchesini, Giulio, and Farinati, Fabio

Subjects
Male, Settore MED/12 - Gastroenterologia, Carcinoma, Hepatocellular, Liver Neoplasms, nonalcoholic steatohepatitis, Gastroenterology, hepatocellular carcinoma, digestive system diseases, Non-alcoholic Fatty Liver Disease, Risk Factors, Humans, neoplasms
Abstract

BackgroundMetabolic dysfunction-associated fatty liver disease (MAFLD) represents a new inclusive definition of the whole spectrum of liver diseases associated to metabolic disorders. The main objective of this study was to compare patients with MAFLD and non-MAFLD with hepatocellular carcinoma (HCC) included in a nationally representative cohort.MethodsWe analysed 6882 consecutive patients with HCC enrolled from 2002 to 2019 by 23 Italian Liver Cancer centres to compare epidemiological and future trends in three subgroups: pure, single aetiology MAFLD (S-MAFLD); mixed aetiology MAFLD (metabolic and others, M-MAFLD); and non-MAFLD HCC.ResultsMAFLD was diagnosed in the majority of patients with HCC (68.4%). The proportion of both total MAFLD and S-MAFLD HCC significantly increased over time (from 50.4% and 3.6% in 2002–2003, to 77.3% and 28.9% in 2018–2019, respectively, pConclusionsThe prevalence of MAFLD HCC in Italy is rapidly increasing to cover the majority of patients with HCC. Despite a less favourable cancer stage at diagnosis, patients with MAFLD HCC have a lower risk of HCC-related death, suggesting reduced cancer aggressiveness.

Published
2021

387. Monofocal hepatocellular carcinoma: How much does size matter?

Author

Pelizzaro, Filippo, Penzo, Barbara, Peserico, Giulia, Imondi, Angela, Sartori, Anna, Vitale, Alessandro, Cillo, Umberto, Giannini, Edoardo G., Forgione, Antonella, Ludovico Rapaccini, Gian, Di Marco, Maria, Caturelli, Eugenio, Zoli, Marco, Sacco, Rodolfo, Cabibbo, Giuseppe, Marra, Fabio, Mega, Andrea, Morisco, Filomena, Gasbarrini, Antonio, Svegliati‐Baroni, Gianluca, Giuseppe Foschi, Francesco, Olivani, Andrea, Masotto, Alberto, Nardone, Gerardo, Raimondo, Giovanni, Azzaroli, Francesco, Vidili, Gianpaolo, Oliveri, Filippo, Trevisani, Franco, Farinati, Fabio, Biselli, Maurizio, Caraceni, Paolo, Garuti, Francesca, Gramenzi, Annagiulia, Neri, Andrea, Santi, Valentina, Granito, Alessandro, Muratori, Luca, Piscaglia, Fabio, Sansone, Vito, Tovoli, Francesco, Dajti, Elton, Marasco, Giovanni, Ravaioli, Federico, Cappelli, Alberta, Golfieri, Rita, Mosconi, Cristina, Renzulli, Matteo, Sammarco, Ambra, Cela, Ester Marina, Facciorusso, Antonio, Cacciato, Valentina, Casagrande, Edoardo, Moscatelli, Alessandro, Pellegatta, Gaia, de Matthaeis, Nicoletta, Allegrini, Gloria, Lauria, Valentina, Ghittoni, Giorgia, Pelecca, Giorgio, Chegai, Fabrizio, Coratella, Fabio, Ortenzi, Mariano, Missale, Gabriele, Inno, Alessandro, Marchetti, Fabiana, Busacca, Anita, Cammà, Calogero, Martino, Vincenzo Di, Emanuele Maria Rizzo, Giacomo, Franzè, Maria Stella, Saitta, Carlo, Sauchella, Assunta, Bevilacqua, Vittoria, Borghi, Alberto, Casadei Gardini, Andrea, Conti, Fabio, Dall'Aglio, Anna Chiara, Ercolani, Giorgio, Mirici, Federica, Campani, Claudia, Bonaventura, Chiara Di, Gitto, Stefano, Coccoli, Pietro, Malerba, Antonio, Guarino, Maria, Brunetto, Maurizia, Romagnoli, Veronica, Pelizzaro, Filippo, Penzo, Barbara, Peserico, Giulia, Imondi, Angela, Sartori, Anna, Vitale, Alessandro, Cillo, Umberto, Giannini, Edoardo G., Forgione, Antonella, Ludovico Rapaccini, Gian, Di Marco, Maria, Caturelli, Eugenio, Zoli, Marco, Sacco, Rodolfo, Cabibbo, Giuseppe, Marra, Fabio, Mega, Andrea, Morisco, Filomena, Gasbarrini, Antonio, Svegliati‐Baroni, Gianluca, Giuseppe Foschi, Francesco, Olivani, Andrea, Masotto, Alberto, Nardone, Gerardo, Raimondo, Giovanni, Azzaroli, Francesco, Vidili, Gianpaolo, Oliveri, Filippo, Trevisani, Franco, Farinati, Fabio, Biselli, Maurizio, Caraceni, Paolo, Garuti, Francesca, Gramenzi, Annagiulia, Neri, Andrea, Santi, Valentina, Granito, Alessandro, Muratori, Luca, Piscaglia, Fabio, Sansone, Vito, Tovoli, Francesco, Dajti, Elton, Marasco, Giovanni, Ravaioli, Federico, Cappelli, Alberta, Golfieri, Rita, Mosconi, Cristina, Renzulli, Matteo, Sammarco, Ambra, Cela, Ester Marina, Facciorusso, Antonio, Cacciato, Valentina, Casagrande, Edoardo, Moscatelli, Alessandro, Pellegatta, Gaia, de Matthaeis, Nicoletta, Allegrini, Gloria, Lauria, Valentina, Ghittoni, Giorgia, Pelecca, Giorgio, Chegai, Fabrizio, Coratella, Fabio, Ortenzi, Mariano, Missale, Gabriele, Inno, Alessandro, Marchetti, Fabiana, Busacca, Anita, Cammà, Calogero, Martino, Vincenzo Di, Emanuele Maria Rizzo, Giacomo, Franzè, Maria Stella, Saitta, Carlo, Sauchella, Assunta, Bevilacqua, Vittoria, Borghi, Alberto, Casadei Gardini, Andrea, Conti, Fabio, Dall'Aglio, Anna Chiara, Ercolani, Giorgio, Mirici, Federica, Campani, Claudia, Bonaventura, Chiara Di, Gitto, Stefano, Coccoli, Pietro, Malerba, Antonio, Guarino, Maria, Brunetto, Maurizia, Romagnoli, Veronica, Giannini, Edoardo G, Svegliati-Baroni, Gianluca, for the Italica, Group, Pelizzaro F., Penzo B., Peserico G., Imondi A., Sartori A., Vitale A., Cillo U., Giannini E.G., Forgione A., Ludovico Rapaccini G., Di Marco M., Caturelli E., Zoli M., Sacco R., Cabibbo G., Marra F., Mega A., Morisco F., Gasbarrini A., Svegliati-Baroni G., Giuseppe Foschi F., Olivani A., Masotto A., Nardone G., Raimondo G., Azzaroli F., Vidili G., Oliveri F., Trevisani F., Farinati F., Biselli M., Caraceni P., Garuti F., Gramenzi A., Neri A., Santi V., Granito A., Muratori L., Piscaglia F., Sansone V., Tovoli F., Dajti E., Marasco G., Ravaioli F., Cappelli A., Golfieri R., Mosconi C., Renzulli M., Sammarco A., Cela E.M., Facciorusso A., Cacciato V., Casagrande E., Moscatelli A., Pellegatta G., de Matthaeis N., Allegrini G., Lauria V., Ghittoni G., Pelecca G., Chegai F., Coratella F., Ortenzi M., Missale G., Inno A., Marchetti F., Busacca A., Qabibboz G., Camma C., Martino V.D., Emanuele Maria Rizzo G., Franze M.S., Saitta C., Sauchella A., Bevilacqua V., Borghi A., Casadei Gardini A., Conti F., Dall'Aglio A.C., Ercolani G., Mirici F., Campani C., Bonaventura C.D., Gitto S., Coccoli P., Malerba A., Guarino M., Brunetto M., Romagnoli V., Rapaccini, Gian Ludovico, and Foschi, Francesco Giuseppe

Subjects
medicine.medical_specialty, Multivariate analysis, Carcinoma, Hepatocellular, Independent predictor, Gastroenterology, Resection, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, medicine, Overall survival, Hepatectomy, Humans, Staging system, Neoplasm Staging, Retrospective Studies, Settore MED/12 - Gastroenterologia, Hepatology, treatment, business.industry, Settore MED/09 - MEDICINA INTERNA, Liver Neoplasms, bclc staging system, monofocal hepatocellular carcinoma, medicine.disease, digestive system diseases, Survival benefit, Italy, 030220 oncology & carcinogenesis, Hepatocellular carcinoma, liver resection, prognosis, 030211 gastroenterology & hepatology, business, Liver cancer, prognosi
Abstract

Background & Aims: According to the Barcelona Clinic Liver Cancer (BCLC) staging system, monofocal hepatocellular carcinoma (HCC) is classified as early (BCLC A) irrespective of its size, even though controversies still exist regarding staging and treatment of large tumours. We aimed at evaluating the appropriate staging and treatment for large (>5cm) monofocal (HCC). Methods: From the Italian Liver Cancer database, we selected 924 patients with small early monofocal HCC (2-5cm; SEM-HCC), 163 patients with larger tumours (>5cm; LEM-HCC) and 1048 intermediate stage patients (BCLC B). Results: LEM-HCC patients had a worse overall survival (OS) than SEM-HCC (31.0 vs 49.0months; P&nbsp

Published
2021

388. Spreading of Competing Information in a Network

Author

Fabio Bagarello, Francesco Oliveri, Francesco Gargano, Bagarello F., Gargano F., and Oliveri F.

Subjects
Computer science, General Physics and Astronomy, lcsh:Astrophysics, 01 natural sciences, Article, 010305 fluids & plasmas, 37M05, Simple (abstract algebra), 0103 physical sciences, lcsh:QB460-466, operatorial models, Statistical dispersion, Statistical physics, 010306 general physics, lcsh:Science, Settore MAT/07 - Fisica Matematica, (H,ρ)-induced dynamics, Single type, 37N20, lcsh:QC1-999, 47L90, spreading of news, lcsh:Q, Fake news, (H, ρ)-induced dynamics, lcsh:Physics
Abstract

We propose a simple approach to investigate the spreading of news in a network. In more detail, we consider two different versions of a single type of information, one of which is close to the essence of the information (and we call it good news), and another of which is somehow modified from some biased agent of the system (fake news, in our language). Good and fake news move around some agents, getting the original information and returning their own version of it to other agents of the network. Our main interest is to deduce the dynamics for such spreading, and to analyze if and under which conditions good news wins against fake news. The methodology is based on the use of ladder fermionic operators, which are quite efficient in modeling dispersion effects and interactions between the agents of the system.

Published
2020
Full Text
View/download PDF

389. Miti mediterranei: un viaggio millenario

Author

Buttitta, I, Scaduto, GB, Anzidei, M, Mastronuzzi, G., Antonioli, F, Aucelli, P, Di Stefano, P, Buttitta, I, Fozzati, L, Sirago, M, Fucarino, C, Purpura, G, Marazzi, M, Greco, C, Spatafora, F, Gandolfo, L, Carrera, F, La Rocca, R, Bechtold, B, Aleo Nero, C, Oliveri, F, Sarà, G, Leidwanger, J, Repola, L, Greene, ES, Tusa, S, Li VIgni, V, Medas, S, Boetto, G, Chiovaro, M, Maffei, MM, Lentini, R, Antico, C, and Vulpio, C

Subjects
Miti, Mediterraneo, Eolo, Colapesce, Sirene, Scilla, Cariddi, Settore M-DEA/01 - Discipline Demoetnoantropologiche, Mediterranean Sea, Myths, Aeolus, Colapesce, Mermaids, Scilla, Cariddi
Abstract

Ha osservato Sebastiano Tusa: «Al di là delle immense e svariate risorse materiali che il mare ha offerto ed offre all’uomo, ve ne sono altre che attengono alla sfera sovrastrutturale che hanno nei millenni rifornito ed animato l’immensa enciclopedia dei miti, delle leggende e dei culti ad esso ispirati o, comunque, connessi». Distesa senza confini e abisso insondabile, il mare, con le sue repentine mutazioni di stato, le sue furiose tempeste e le sue mortifere bonacce, si è sempre imposto a chi lo solcava per raggiungere altri luoghi o per ricavarne da vivere come spazio del pericolo e del mistero, generando e sostenendo un ampio e polimorfo immaginario e divenendo attore e scenario al contempo di avventure, di storie e di miti molteplici: ecco Gilgamesh sfidare l’abisso infinito per raccogliere la pianta di vita; ecco Osiride, rinchiuso in una bara dal malvagio fratello Seth, vagare sulle onde fino a giungere esanime a Biblo; ecco Marduk gettarsi tra i flutti per uccidere la mostruosa Tiamat, smembrarla e così dar forma al mondo; ecco Ercole solcare superfici schiumose alla volta dell’isola di Creta; ecco Teseo sfidare Minosse e immergersi nelle profondità marine per raccogliere un anello prezioso; ecco Arianna piangere disperata sulla deserta Nasso; ecco Eolo amministrare i venti dalla sua reggia alle Lipari; ecco ancora Odisseo scortato dai Feaci, Enea che approda a Cartagine, Palinuro inghiottito dalle onde… Ecco il mare, il nostro Mare di mezzo, il mare “colore del vino”, teatro unico di storie mitiche e miti storici, di mille Argonautiche e di mille Odissee; spazio in cui dimorano – in piccole e grandi isole, sulle spiagge, nelle grotte, tra le onde, nel profondo abissi – infinite potenze e divinità: Yam, Iside, Poseidone, Forchis, Tritone, Teti, Anfitrite e le Nereidi, Calipso e le Oceanine; deserto d’acqua e di sale popolato da entità e da mostri d’ogni sorta: le Sirene ammaliatrici, Scilla e Cariddi che strappano e inghiottono naviganti e imbarcazioni, l’orribile Ketos sconfitto da Perseo, Glauco e altri ibridi uomini ittioformi, streghe dai lunghi capelli e draconiche trombe marine…. Questi e tanti altri i mostri, le divinità, gli eroi e le loro avventure, che di porto in porto, di barca in barca, sin dalla preistoria hanno attraversato lo spazio mediterraneo fino ad approdare nel folklore contemporaneo Sebastiano Tusa observed: "Beyond the immense and varied material resources that the sea has offered and offers to man, there are others that pertain to the superstructural sphere that over the millennia have supplied and animated the immense encyclopedia of myths, legends and cults inspired by it or, in any case, connected to it ». Expanse without borders and unfathomable abyss, the sea, with its sudden changes of state, its furious storms and its deadly calm, has always imposed itself on those who sailed it to reach other places or to make a living from it as a space of danger and of the mystery, generating and sustaining a large and polymorphous imaginary and becoming an actor and scenario at the same time of adventures, stories and multiple myths: here is Gilgamesh challenging the infinite abyss to collect the plant of life; here is Osiris, locked up in a coffin by his evil brother Seth, wandering on the waves until he reaches Byblos lifeless; here is Marduk throwing himself into the waves to kill the monstrous Tiamat, dismember her and thus shape the world; here is Hercules furrowing foamy surfaces towards the island of Crete; here is Teseo challenging Minos and plunging into the depths of the sea to collect a precious ring; here is Arianna crying desperately on the deserted Naxos; here is Aeolus administering the winds from his palace to Lipari; here again Odysseus escorted by the Phaeacians, Aeneas arriving in Carthage, Palinuro swallowed up by the waves ... Here is the sea, our Middle Sea, the "wine color" sea, unique theater of mythical stories and historical myths, of a thousand Argonautics and a thousand Odyssey; space where they live - in small and large islands, on beaches, in caves, among the waves, in the deep abysses - infinite powers and divinities: Yam, Isis, Poseidon, Forchis, Triton, Teti, Amphitrite and the Nereids, Calypso and the Oceanine; desert of water and salt populated by entities and monsters of all sorts: the enchanting Sirens, Scylla and Charybdis who tear and swallow sailors and boats, the horrible Ketos defeated by Perseus, Glaucus and other hybrid ichthyoform men, witches from long hair and draconic sea trumpets…. These and many other monsters, gods, heroes and their adventures, which from port to port, from boat to boat, have crossed the Mediterranean space since prehistoric times to land in contemporary folklore

Published
2020

390. Modeling the time-related fluctuations of AFP and PIVKA-II serum levels in patients with cirrhosis undergoing surveillance for hepatocellular carcinoma

Author

G. Ricco, Patrizia Pontisso, Mario Plebani, Chiara Cosma, Maurizia Rossana Brunetto, Alessandra Biasiolo, Ferruccio Bonino, Giorgio Bedogni, Filippo Oliveri, Filomena Morisco, Daniela Cavallone, Maria Guarino, Ricco, G., Cosma, C., Bedogni, G., Biasiolo, A., Guarino, M., Pontisso, P., Morisco, F., Oliveri, F., Cavallone, D., Bonino, F., Plebani, M., and Brunetto, M. R.

Subjects
Liver Cirrhosis, Male, Cancer Research, Cirrhosis, Chronic liver disease, Severity of Illness Index, Gastroenterology, 0302 clinical medicine, Reference Values, Liver Neoplasms, AFP, biomarkers, cirrhosis, hepatocellular carcinoma, PIVKA-II, surveillance, General Medicine, Middle Aged, Prognosis, Oncology, 030220 oncology & carcinogenesis, Hepatocellular carcinoma, Disease Progression, biomarker, Female, Prothrombin, 030211 gastroenterology & hepatology, alpha-Fetoproteins, medicine.medical_specialty, Carcinoma, Hepatocellular, 03 medical and health sciences, Predictive Value of Tests, Internal medicine, Biomarkers, Tumor, Genetics, medicine, Humans, In patient, Protein Precursors, neoplasms, Aged, Retrospective Studies, business.industry, Retrospective cohort study, medicine.disease, digestive system diseases, Biological Variation, Population, ROC Curve, Etiology, business, Biological variability, cirrhosi
Abstract

BACKGROUND: The time-related variability of HCC biomarkers has not been investigated so far. OBJECTIVE: To assess the changes of alpha-fetoprotein (AFP) and protein induced by vitamin-K absence/antagonist-II (PIVKA-II) in patients with HCC (HCC+) as compared to patients without HCC (HCC-). METHODS: AFP and PIVKA-II were measured by a single laboratory using an automated chemiluminescent-enzyme-immunoassay (Fujirebio Inc., Tokyo, Japan) in 1163 sera of 418 cirrhotics (31.1% HBV, 58.6% HCV, 10.3% non-viral etiology) undergoing ultrasound HCC surveillance. The mean (range) number of effective time-points available for analysis was 2.8 (2.0 to 3.0); 124 patients with HCC were matched with 294 who remained HCC free for at least 12 months after the last specimen. AFP and PIVKA-II changes were estimated over time by means of a random-effect generalized least squares (RE-GLS) regression model under the missingness at random assumption. RESULTS: Patients with and without HCC had comparable chronic liver disease etiology and staging. AFP/PIVKA-II median (25th; 75th percentile) values at the latest time-point were 4.2 (2.6; 8.6) ng/mL/32 (25; 42) mAU/mL in HCC- and 8.4 (4.4; 32.1) ng/mL/66 (32; 192) mAU/mL in HCC+ (p< 0.001). Log10AFP and log10PIVKA-II time-changes differed in HCC+ and HCC- patients. In HCC+ patients, both log10AFP and log10PIVKA-II showed an increasing trend over time. In HCC- patients, log10PIVKA-II variations were minimal as compared to log10AFP variations. The percent increase of log10AFP at 6 months vs. baseline was 11% (95%CI 5 to 17%) and 5% (95%CI 1 to 8%) for log10PIVKA-II in HCC+vs. HCC- patients. CONCLUSIONS: The present retrospective study of the biological variability of AFP and PIVKA-II suggests that their time-related changes may serve as potential predictors of HCC. This topic needs to be addressed by longitudinal studies.

Published
2020

391. Mare nostrum: questioni di aggettivo?

Author

bianco maurizio massimo, Bianco, MM, Brescia, M, Cardini, F, Marzatico, F, Montesano, M, Oliveri, F, Ruta, R, and bianco maurizio massimo

Subjects
Mare nostrum, Mediterraneo, Roma antica, Settore L-FIL-LET/04 - Lingua E Letteratura Latina
Abstract

Riflessione sull'espressione 'mare nostrum', sulle sue connotazioni geografiche e politiche, sul peso ideologico che il possessivo 'nostrum' ha esercitato sulla tradizione successiva fino ai nostri giorni.

Published
2020

394. (H, ρ)-induced dynamics and the quantum game of life

Author

Francesco Oliveri, Francesco Gargano, R. Di Salvo, Fabio Bagarello, Bagarello, F., Di Salvo, R., Gargano, F., and Oliveri, F.

Subjects
Cellular automata, Pure mathematics, Quantum dynamics, Fermionic operator, 01 natural sciences, 010305 fluids & plasmas, Modeling and simulation, Spectral analysi, symbols.namesake, Quantum games, 0103 physical sciences, Spectral analysis, 010306 general physics, Settore MAT/07 - Fisica Matematica, Finite set, Game of life, Mathematics, Mathematical physics, Applied Mathematics, Cellular automata, Fermionic operators, Game of life, Heisenberg-like dynamics, Spectral analysis, Modeling and Simulation, Applied Mathematics, Heisenberg-like dynamic, Cellular automaton, Modeling and Simulation, symbols, Hamiltonian (quantum mechanics)
Abstract

We propose an extended version of quantum dynamics for a certain system S , whose evolution is ruled by a Hamiltonian H, its initial conditions, and a suitable set ρ of rules, acting repeatedly on S . The resulting dynamics is not necessarily periodic or quasi-periodic, as one could imagine for conservative systems with a finite number of degrees of freedom. In fact, it may have quite different behaviors depending on the explicit forms of H, ρ as well as on the initial conditions. After a general discussion on this (H, ρ)-induced dynamics, we apply our general ideas to extend the classical game of life, and we analyze several aspects of this extension.

Published
2017
Full Text
View/download PDF

395. Teorie, pratiche e competenze interculturali per una scuola di tutte e tutti

Author

Giusti, M., Enza Pellecchia, Federico Gelli, Riccardo Andreini, Federico Oliveri, Fabio Bracci, Massimo Colombo, Chiara Stoppioni, Mariangela Giusti, Oliveri, F, and Giusti, M

Subjects
competenza interculturale, M-PED/01 - PEDAGOGIA GENERALE E SOCIALE, formazione docenti, Educazione interculturale
Abstract

Tematiche dell'intercultura a scuola e nei contesti formativi dell'extrascuola

Published
2019

397. Application of Gas Chromatography coupled with Mass Spectroscopy (GC/MS) to the analysis of archaeological ceramic amphorae belonging to the Carthaginian fleet that was defeated in the Egadi battle (241 B.C.)

Author

Sebastiano Tusa, Maria Luisa Saladino, Francesco Armetta, Rosa Pitonzo, Francesca Oliveri, Eugenio Caponetti, Pitonzo, R., Armetta, F., Saladino, M., Caponetti, E., Oliveri, F., and Tusa, S.

Subjects
Engineering, Battle, GS-MS, business.industry, media_common.quotation_subject, Mechanical Engineering, Underwater ceramic amphorae, Egadi Battle, Mass spectrometry, Archaeology, visual_art, Pine resin, visual_art.visual_art_medium, Gas chromatography, Ceramic, Gas chromatography–mass spectrometry, Electrical and Electronic Engineering, business, Instrumentation, media_common
Abstract

The aim of this preliminary work was to identify characteristic compounds in 7 underwater marine ceramic amphorae sherds dating from the period of the battle of the Egadi Islands that decided the end of the First Punic War (241 B.C.) by Gas Chromatography coupled with Mass Spectroscopy (GC/MS).

Published
2017

398. A PHENOMENOLOGICAL OPERATOR DESCRIPTION OF INTERACTIONS BETWEEN POPULATIONS WITH APPLICATIONS TO MIGRATION

Author

Francesco Oliveri, Fabio Bagarello, Bagarello, F, and Oliveri, F

Subjects
Heisenberg-like dynamics, Computer science, Applied Mathematics, Populations and Evolution (q-bio.PE), FOS: Physical sciences, Dynamics of competing populations with diffusion, Fermionic operators, Upper and lower bounds, symbols.namesake, Quadratic equation, Operator (computer programming), Biological Physics (physics.bio-ph), Particle number operator, FOS: Biological sciences, Modeling and Simulation, symbols, Physics - Biological Physics, Statistical physics, Quantitative Biology - Populations and Evolution, Hamiltonian (quantum mechanics), Settore MAT/07 - Fisica Matematica, quantum tools for classical systems
Abstract

We adopt an operatorial method based on the so-called creation, annihilation and number operators in the description of different systems in which two populations interact and move in a two-dimensional region. In particular, we discuss diffusion processes modeled by a quadratic hamiltonian. This general procedure will be adopted, in particular, in the description of migration phenomena. With respect to our previous analogous results, we use here fermionic operators since they automatically implement an upper bound for the population densities., Comment: M3AS, in press

Published
2013
Full Text
View/download PDF

399. 3.9.1. Villagrazia di Carini (PA), [Sito 86]

Author

Vitale, E, Malfitana D, Bonifay M, Amico, A, Anastasi, M, Arcifa, L, Ardizzone, F, Bellavia, M, Belvedere, O, Bonacasa Carra, R M, Bonanno, C, Bonifay, M, Borrello, L, Burgio, A, Cacciaguerra, G, Calì, D, Caminneci, V, Capelli, C, Cavalier, M, Cipriano, G, Cirelli, C, Congiu, M, D’Angelo, F, De Miro, A, Di Stefano, G, Facella, A, Falzone, G, Fragalà, G, Franco, C, Gagliardi, V, Gasparini, E, Grasso, A M, Guzzardi, L, Huguet, C, La Rocca, R, Lanteri, R, Leitch, V, Lionetti, A L, Malfitana, D, Maniscalco, L, Mazzaglia, A, Mukai, T, Oliveri, F, Ollà, A, Pantellaro, C, Panvini, R, Paparoni, S, Parello, M C, Patanè, A, Pensabene, P, Perna, M, Pisciotta, F, Polito, A, Puppo, P, Rivoli, A, Rizzo, M S, Sammito, A M, Scarponi, G, Scerra, G, Scrofani, M L, Sole, L, Testa, A, Tigano, G, Tisseyre, Ph, Vaggioli, M A, Valbruzzi, F, Valentino, M, Vassallo, S, Vitale, E, Zambito, L, and Zirone, D

Subjects
coarse ware, Early Christian cemetery, African red slip ware, Late Antiquity in Sicily, North Africa atelier, funerary ritual, African oil lamp, Settore L-ANT/08 - Archeologia Cristiana E Medievale
Abstract

The materials found in the catacomb of Villagrazia di Carini consist essentially of African Red Slip Ware, coarse ware of probable African production and oil lamps, both Tripolitan and types Atlante VIII and X. Almost all the materials have been regularly published in the reports of the excavations carried out by the Pontificia Commissione di Archeologia Sacra and the Department of Cultural Heritage of the University of Palermo, from 2000 to date: a first catalogue have been published in the Proceedings of the IX National Congress of Christian Archeology (2007), followed by updates in Rivista di Archeologia Cristiana (2009) and in a recent study by E. Vitale about the territory of the Early Christian diocese of Carines (Studi di Archeologia II, 2011). Interpreted as the elements of the funerary (pottery) and functional (oil lamps) ritual , the finds fit well within the framework of the productions circulating in the Mediterranean basin between the mid-4th and the 6th-7th centuries AD. Most of the finds come from alluvial layers or from the abandonment levels, or (in the case of objects found inside the burials) from layers tampered with by acts of violation; all this, obviously, does not diminish the documentary value of these products, which circulated in North-western Sicily while the catacomb was in use for funerary purposes.

Published
2016

400. An operatorial description of desertification

Author

Anna Maria Cherubini, Fabio Bagarello, Francesco Oliveri, Bagarello, F., Cherubini, A., Oliveri, F., Bagarello, Fabio, Cherubini, Anna Maria, and Oliveri, Francesco

Subjects
Mathematical optimization, Desertification, Fermionic operators, Heisenberg-like dynamics, Heisenberg-like dynamics, Computer science, media_common.quotation_subject, Applied Mathematics, Fermionic operator, Heisenberg-like dynamic, 01 natural sciences, 010305 fluids & plasmas, 010101 applied mathematics, Desertification, 0103 physical sciences, Full model, Reversing, 0101 mathematics, Settore MAT/07 - Fisica Matematica, Fermionic operators, media_common
Abstract

We propose a simple theoretical model for desertification processes based on three actors (soil, seeds, and plants) on a two-dimensional lattice. Each actor is described by a time dependent fermionic operator, and the dynamics is ruled by a self-adjoint Hamilton-like operator. We show that even taking into account only a few parameters, accounting for external actions on the ecosystem or the response to positive feedbacks, the model provides a plausible description of the desertification process, and can be adapted to different ecological landscapes. We first describe the simplified model in one cell. Then, we define the full model on a two-dimensional region, taking into account additional factors such as nonhomogeneities, the competition for resources between plants, and the spread of seeds due to the action of wind or animals. This allows us to explore the effects of positive feedback on slowing down, stopping, or reversing the desertification process.

Published
2016

Catalog

Books, media, physical & digital resources
See catalog results