667 results on '"Gabbrielli A"'
Search Results
2. Airborne Acoustic Chirp Spread Spectrum Communication System for User Identification in Indoor Localization
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Andrea Gabbrielli, Georg K. J. Fischer, Thomas Schaechtle, Wenxin Xiong, Dominik Jan Schott, Joan Bordoy, Johannes Wendeberg, Fabian Höflinger, Christian Schindelhauer, and Stefan J. Rupitsch
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Electrical and Electronic Engineering ,Instrumentation - Published
- 2023
3. Coding style dataset
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Gabbrielli Maurizio, Gurioli Andrea, and Zacchiroli Stefano
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Code ,Stylometry ,Deep learning - Abstract
In-distribution and out-distribution datasets Release encompassing both in-distribution and out-distribution datasets associated with the research paper titled "Stylometry for Real-World Expert Coders: a Zero-shot Approach." The in-distribution dataset follows the same experimental setup as the train, validation, and test sets, whereas the out-distribution dataset exclusively comprises snippets used for testing purposes.
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- 2023
- Full Text
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4. Checkpoints on code stylometry
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Gabbrielli Maurizio, Gurioli Andrea, and Zacchiroli Stefano
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Code stylometry ,Deep learning - Abstract
This releasecontains three trained models (checkpoints) related to the "Stylometry for Real-World Expert Coders: a Zero-shot Approach" paper, respectively: - MLAllVocaBSoftAtt referees to the soft attention model trained with infoNCE loss without B.P.E, with bounding. - SoftAtt64k104AuthClass referees to the soft-attention model trained in a classification setup with 64k B.P.E. token, with bounding. - SelfAtt64k104authClass referees to the self-attention model
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- 2023
- Full Text
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5. Multimodal Side-Tuning for Document Classification
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Maurizio Gabbrielli, Giuseppe Lisanti, Stefano Pio Zingaro, and Stefano Pio Zingaro, Giuseppe Lisanti, Maurizio Gabbrielli
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FOS: Computer and information sciences ,Computer Science - Machine Learning ,Exploit ,Computer science ,Computer Vision and Pattern Recognition (cs.CV) ,Computer Science - Computer Vision and Pattern Recognition ,02 engineering and technology ,010501 environmental sciences ,Machine learning ,computer.software_genre ,01 natural sciences ,Machine Learning (cs.LG) ,0202 electrical engineering, electronic engineering, information engineering ,Limit (mathematics) ,0105 earth and related environmental sciences ,Artificial Intelligence, Machine Learning, Deep Learning, Document Analysis ,Forgetting ,business.industry ,Document classification ,Deep learning ,Visualization ,Pattern recognition (psychology) ,020201 artificial intelligence & image processing ,Artificial intelligence ,Transfer of learning ,business ,computer - Abstract
In this paper, we propose to exploit the side-tuning framework for multimodal document classification. Side-tuning is a methodology for network adaptation recently introduced to solve some of the problems related to previous approaches. Thanks to this technique it is actually possible to overcome model rigidity and catastrophic forgetting of transfer learning by fine-tuning. The proposed solution uses off-the-shelf deep learning architectures leveraging the side-tuning framework to combine a base model with a tandem of two side networks. We show that side-tuning can be successfully employed also when different data sources are considered, e.g. text and images in document classification. The experimental results show that this approach pushes further the limit for document classification accuracy with respect to the state of the art., Comment: 2020 25th International Conference on Pattern Recognition (ICPR)
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- 2023
- Full Text
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6. The impact of mean body mass index on reported mortality from COVID-19 across 181 countries
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Ruggero Gabbrielli and Nicola Maria Pugno
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Public Health, Environmental and Occupational Health - Abstract
Accountability for global health issues such as a pandemic and its devastating consequences are usually ascribed to a virus, but a comprehensive view should also take into account the state of the host. Data suggests that excessive nutrition is to blame for a yet unknown but not negligible portion of deaths attributed to severe acute respiratory syndrome coronavirus 2. We analyzed the correlation between mean body mass index (BMI) and 2-year coronavirus disease 2019 (COVID-19) mortality rates reported by 181 countries worldwide. Almost two thirds of the countries included had a mean BMI greater or equal to 25, with death rates ranging from 3 to 6,280 per million. Death rates in countries with a mean BMI below 25 ranged from 3 to 1,533. When the analysis was restricted to countries where the extent of testing was deemed more representative of actual mortality, only 20.1% had a mean BMI
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- 2023
7. Endoscopic Ultrasound-guided Radiofrequency Ablation Versus Surgical Resection for Treatment of Pancreatic Insulinoma
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Stefano Francesco Crinò, Bertrand Napoleon, Antonio Facciorusso, Sundeep Lakhtakia, Ivan Borbath, Fabrice Caillol, Khanh Do-Cong Pham, Gianenrico Rizzatti, Edoardo Forti, Laurent Palazzo, Arthur Belle, Peter Vilmann, Jean-Luc van Laethem, Mehdi Mohamadnejad, Sebastien Godat, Pieter Hindryckx, Ariel Benson, Matteo Tacelli, Germana De Nucci, Cecilia Binda, Bojan Kovacevic, Harold Jacob, Stefano Partelli, Massimo Falconi, Roberto Salvia, Luca Landoni, Alberto Larghi, Sergio Alfieri, Paolo Giorgio Arcidiacono, Marianna Arvanitakis, Anna Battistella, Laura Bernadroni, Lene Brink, Marcello Cintolo, Maria Cristina Conti Bellocchi, Maria Vittoria Davì, Sophie Deguelte, Pierre Deprez, Jaques Deviere, Jacques Ewald, Carlo Fabbri, Giovanni Ferrari, Raluca Maria Furnica, Armando Gabbrielli, Rodrigo Garcés-Duran, Marc Giovannini, Tamas Gonda, Joan B. Gornals, Mariola Marx, Michele Mazzola, Massimiliano Mutignani, Andrew Ofosu, Stephan P. Pereira, Marine Perrier, Adam Przybylkowski, Alessandro Repici, Sridhar Sundaram, and Giulia Tripodi
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Hepatology ,Gastroenterology - Published
- 2023
8. Hybrid Models for Knowledge Tracing: a Systematic Literature Review
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Olivia Levrini, maurizio Gabbrielli, Daniele Di Mitri, and Andrea Zanellati
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Knowledge Tracing is a well-known problem often tackled through purely data-driven approaches. In recent years, many advances have been made in research with various machine learning and deep learning techniques. Despite their satisfactory performance, they have some pitfalls, e.g. modeling one skill at a time, ignoring the relationships between different skills, or inconsistency for the predictions, i.e. sudden spikes and falls across time steps. For this reason, hybrid machine-learning techniques have also been explored. With this systematic literature review, we aim to illustrate this field's state of the art. Specifically, we want to identify the potential and the frontiers in integrating prior knowledge sources in the traditional machine learning pipeline as a supplement to the normally considered data. We applied a qualitative analysis to distill a taxonomy with three dimensions: knowledge source, knowledge representation, and knowledge integration. Exploiting this taxonomy, we also conducted a quantitative analysis to detect the most common approaches.
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- 2023
9. Predictors of adverse events after endoscopic ultrasound-guided through-the-needle biopsy of pancreatic cysts: a recursive partitioning analysis
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Antonio Facciorusso, Bojan Kovacevic, Dennis Yang, Filipe Vilas-Boas, Belén Martínez-Moreno, Serena Stigliano, Gianenrico Rizzatti, Marco Sacco, Martha Arevalo-Mora, Leonardo Villarreal-Sanchez, Maria Cristina Conti Bellocchi, Laura Bernardoni, Armando Gabbrielli, Luca Barresi, Paraskevas Gkolfakis, Carlos Robles-Medranda, Claudio De Angelis, Alberto Larghi, Francesco Maria Di Matteo, José R. Aparicio, Guilherme Macedo, Peter V. Draganov, Peter Vilmann, Leandro Pecchia, Alessandro Repici, and Stefano Francesco Crinò
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Pancreatic Neoplasms ,Pancreatic Intraductal Neoplasms ,Gastroenterology ,Humans ,Pancreatic Cyst ,Endoscopic Ultrasound-Guided Fine Needle Aspiration ,Retrospective Studies ,Endosonography - Abstract
Background and study aims Endoscopic ultrasound-guided through-the-needle biopsy (TTNB) of pancreatic cystic lesions (PCLs) is associated with a non-negligible risk for adverse events (AEs). We aimed to identify the hierarchic interaction among independent predictors for TTNB-related AEs and to generate a prognostic model using recursive partitioning analysis (RPA). Patients and methods Multicenter retrospective analysis of 506 patients with PCLs who underwent TTNB. RPA of predictors for AEs was performed and the model was validated by means of bootstrap resampling. Results Mean cysts size was 36.7 mm. Most common diagnoses were intraductal papillary mucinous neoplasm (IPMN, 45 %), serous cystadenoma (18.8 %), and mucinous cystadenoma (12.8 %). Fifty-eight (11.5 %) AEs were observed. At multivariate analysis, age (odds ratio [OR] 1.32, 1.09–2.14; p = 0.05), number of TTNB passes (OR from 2.17, 1.32–4.34 to OR 3.16, 2.03–6.34 with the increase of the number of passes), complete aspiration of the cyst (OR 0.56, 0.31–0.95; p = 0.02), and diagnosis of IPMN (OR 4.16, 2.27–7.69; p Conclusion TTNB should be selectively used in the evaluation of patients with IPMN. The present model could be applied during patient selection as to optimize the benefit/risk of TTNB.
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- 2022
10. Development and validation of a risk score for prediction of clinical success after duodenal stenting for malignant gastric outlet obstruction
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Maria Cristina Conti Bellocchi, Stefano Francesco Crinò, Marzia Fioravante, Enrico Maria Gabrieletto, Serena Di Stefano, Laura Bernardoni, Paraskevas Gkolfakis, Andrew Ofosu, Antonio Facciorusso, and Armando Gabbrielli
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Treatment Outcome ,Hepatology ,Gastric Outlet Obstruction ,Risk Factors ,Stomach Neoplasms ,Palliative Care ,Gastroenterology ,Humans ,Stents ,Aged ,Retrospective Studies - Abstract
To develop and validate a risk score for predicting clinical success after duodenal stenting using self-expanding metallic stents (SEMS) for malignant gastric outlet obstruction (GOO).Consecutive patients who underwent duodenal stenting for malignant GOO were evaluated. Potential predictors of clinical success were determined by uni/multivariate logistic regression analysis.Multiplication of the regression coefficients of the logistic regression model by a factor of two and rounding to obtain easy-to-use point numbers enabling the calculation of the score. Using 10-fold cross-validation, the model was internally validated.One hundred twelve patients were included. Clinical success was achieved in 93 (83.0%) patients. On multivariate logistic regression, selected age ≤65 years (p = 0.05, 1.5 points), stenosis type I (p = 0.04, 3 points), and pancreatic cancer (p = 0.01, 3.5 points) were significant predictors of clinical success. On the Receiver Operating Characteristic (ROC) analysis, a score of 5 had higher specificity and sensitivity.Our score could be useful at identifying, among poor surgical candidates, patients more likely to benefit from SEMS.
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- 2022
11. Safety and efficacy of a novel electrocautery-enhanced lumen-apposing metal stent in interventional EUS procedures (with video)
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Maria Cristina Conti Bellocchi, Yun Nah Lee, Francesco Auriemma, Laura Lamonaca, Rita Conigliaro, Antonio Facciorusso, Stefano Francesco Crinò, D. Paduano, Hae Won Yoo, Gianenrico Rizzatti, Carlos Robles-Medranda, Alessandro Repici, Jong Ho Moon, Alberto Larghi, Roberto Oleas, Armando Gabbrielli, Benedetto Mangiavillano, Anthony Yuen Bun Teoh, F. Spatola, Il Sang Shin, and Khanh Pham
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Male ,medicine.medical_specialty ,Referral ,medicine.medical_treatment ,Lumen (anatomy) ,Endosonography ,Electrocoagulation ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Prospective Studies ,Prospective cohort study ,Adverse effect ,Ultrasonography, Interventional ,Aged ,Retrospective Studies ,Biliary drainage ,business.industry ,Gallbladder ,Gastroenterology ,Stent ,Gastric outlet obstruction ,Middle Aged ,medicine.disease ,Surgery ,medicine.anatomical_structure ,Drainage ,Female ,Stents ,business - Abstract
Background and Aims Electrocautery-tip lumen-apposing metal stents (EC-LAMSs) have extended the indications of therapeutic EUS. We aimed to retrospectively evaluate safety and technical and clinical success of a newly developed EC-LAMS, the Hot-Spaxus (Taewoong Medical Co, Gimpo, Korea), for various EUS-guided procedures. Methods We included and retrospectively analyzed consecutive patients at 8 tertiary care referral centers who had undergone EUS interventional procedures using the Hot-Spaxus between October 2018 and February 2021. Results Of 58 included patients (male-to-female, 36:22; mean age, 63.5 ± 14.9 years), 29 had undergone pancreatic fluid collection drainage (50%), 22 (37.9%) biliary drainage for malignant distal obstruction, 3 (5.1%) gallbladder drainage for acute cholecystitis, 3 gastroenteroanastomoses, and 1 (1.7%) pelvic collection drainage. Technical success was achieved in 54 of 58 patients (93.1%) and clinical success in all 58. Adverse events occurred in 6 patients (11.1%): 2 early (3.7%), 1 late (1.8%), and 3 long term (5.6%). The outcomes were similar to those observed in a control group of patients treated with the Hot-Axios (Boston Scientific, Marlborough, Mass, USA), the other available EC-LAMS. Conclusions Our study showed that the novel EC-LAMS has high technical and clinical success rates for various interventional EUS indications. Future multicenter prospective studies will better clarify the role of this new EC-LAMS for different indications.
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- 2022
12. Key Performance Indicators and Industry 4.0 – A structured approach for monitoring the implementation of digital technologies
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Braglia, Marcello, Gabbrielli, Roberto, Marrazzini, Leonardo, and Padellini, Luca
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power generation industry ,General Earth and Planetary Sciences ,Key Performance Indicators ,Industry 4.0 ,Industry 4.0, Key Performance Indicators, power generation industry ,General Environmental Science - Published
- 2022
13. Winterkilled Cover Crops: Growth, Nitrogen Uptake, Weed Control and Frost Damage in a 3-Year Field Experiment
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MARA GABBRIELLI, Anastasia Shchegolikhina, and Luca Bechini
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- 2023
14. Characterization of noise regimes in mid-IR free-space optical communication based on quantum cascade lasers
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Marco Seminara, Tecla Gabbrielli, Nicola Corrias, Simone Borri, Luigi Consolino, Marco Meucci, Paolo De Natale, Francesco Cappelli, and Jacopo Catani
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Signal Processing (eess.SP) ,FOS: Electrical engineering, electronic engineering, information engineering ,FOS: Physical sciences ,Physics - Applied Physics ,Systems and Control (eess.SY) ,Applied Physics (physics.app-ph) ,Electrical Engineering and Systems Science - Signal Processing ,Electrical Engineering and Systems Science - Systems and Control ,Atomic and Molecular Physics, and Optics ,Physics - Optics ,Optics (physics.optics) - Abstract
The recent development of Quantum Cascade Lasers (QCLs) represents one of the biggest opportunities for the deployment of a new class of Free Space Optical (FSO) communication systems working in the mid-infrared (mid-IR) wavelength range. As compared to more common FSO systems exploiting the telecom range, the larger wavelength employed in mid-IR systems delivers exceptional benefits in case of adverse atmospheric conditions, as the reduced scattering rate strongly suppresses detrimental effects on the FSO link length given by the presence of rain, dust, fog, and haze. In this work, we use a novel FSO testbed operating at 4.7 µm, to provide a detailed experimental analysis of noise regimes that could occur in realistic FSO mid-IR systems based on QCLs. Our analysis reveals the existence of two distinct noise regions, corresponding to different realistic channel attenuation conditions, which are precisely controlled in our setup. To relate our results with real outdoor configurations, we combine experimental data with predictions of an atmospheric channel loss model, finding that error-free communication could be attained for effective distances up to 8 km in low visibility conditions of 1 km. Our analysis of noise regimes may have a key relevance for the development of novel, long-range FSO communication systems based on mid-IR QCL sources.
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- 2022
15. A penetrating foreign body mimicking pancreatic cancer (with videos)
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MariaCristina Conti Bellocchi, Antonio Amodio, Laura Bernardoni, Armando Gabbrielli, and StefanoFrancesco Crinò
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Hepatology ,Gastroenterology ,Radiology, Nuclear Medicine and imaging - Published
- 2022
16. T.09.6 VALIDATION OF ENDOFASTER® AS A SUBSTITUTE OF HISTOLOGY IN HELICOBACTER PYLORI DETECTION
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M.C. Conti Bellocchi, E. Gasparini, V. Bobba, L. Bernardoni, S.F. Crino, V. Fino, S. Di Stefano, and A. Gabbrielli
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Hepatology ,Gastroenterology - Published
- 2023
17. T.12.7 IS ONE PASS ENOUGH FOR THE DIAGNOSIS OF THE PANCREATIC MASSES DURING EUS-FNB? A PROSPECTIVE STUDY
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F. Auriemma, A. Facciorusso, S.F. Crino, S. Carrara, D. Francesco, M. Spadaccini, L. De Luca, G. Franchellucci, A. De Marco, V. Poletti, D. Paduano, F. Calabrese, A. Gabbrielli, M. Di Leo, S. Stigliano, C. Barbera, G. Valerii, A. Lisotti, P. Fusaroli, E. Dabizzi, A. Repici, and B. Mangiavillano
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Hepatology ,Gastroenterology - Published
- 2023
18. Acoustically Coupled Passive Wireless Sensor System With Mechanical Resonant Sensor
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Thomas Schaechtle, Bibhu Kar, Georg K.J. Fischer, Andrea Gabbrielli, Fabian Hofiinger, Ulrike Wallrabe, and Stefan J. Rupitsch
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- 2022
19. The Meaning of the Italian Fight against COVID-19
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Francesco Gabbrielli and Luigi Bertinato
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- 2022
20. Standardized 3- and 12-months imaging and clinical-functional pulmonary follow-up in patients hospitalized for COVID-19
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D CHIMERA, F Pistelli, L Tavanti, G Manfredini, C Romei, A De Liperi, F Aquilini, M Micheli, A Celi, R Pancani, M Desideri, N Carpenè, L Gabbrielli, and L Carrozzi
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- 2022
21. Chylous effusions in advanced medullary thyroid cancer patients treated with selpercatinib
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Alessandro Prete, Carla Gambale, Virginia Cappagli, Valeria Bottici, Piercarlo Rossi, Marco Caciagli, Piermarco Papini, Donatella Taddei, Simona Ortori, Luciano Gabbrielli, Alessandro Celi, Gabriele Materazzi, Rossella Elisei, and Antonio Matrone
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Endocrinology ,Endocrinology, Diabetes and Metabolism ,Humans ,General Medicine ,Thyroid Neoplasms ,Carcinoma, Neuroendocrine ,Retrospective Studies - Abstract
Objective Selpercatinib is a highly selective RET-inhibitor drug, approved for the treatment of RET-altered lung and thyroid cancers. So far, RET-altered medullary thyroid cancer (MTC) patients treated with selpercatinib showed a remarkable objective response rate and safety profile. However, new treatment emerging adverse events (TEAEs) have been recently reported. The aim of this study was to evaluate the prevalence, features, and clinical management of effusions that are one of these TEAEs. Design Around 10 of 11 patients with advanced MTC enrolled in the LIBRETTO-201 clinical trial at Endocrinology Unit of the Pisa University Hospital were evaluated for the presence and management of effusions. Methods We retrospectively evaluated MTC patients treated with selpercatinib. The presence of pleural, pericardial, abdominal, and/or pelvic effusions was evaluated by reviewing the computerized tomography scan performed during the study protocol and up to 24 months of observation. Results All but one MTC patient experienced previous multikinase inhibitors treatment. Three patients already had effusions before starting selpercatinib treatment. New effusions appeared in eight of ten (80%) patients during the treatment. A chylous nature was documented in patients who underwent fluid aspiration. Whenever a dose reduction was performed, a significant positive effect was observed. Conclusions Chylous effusions are a new TEAE of selpercatinib treatment. They can appear or worsen at any time during the treatment. For cases with asymptomatic and mild effusions, active surveillance may be appropriate and safe. In symptomatic and/or moderate/severe cases, aspiration of the fluid and a dose reduction can improve this AE, strongly supporting a cause-effect correlation with selpercatinib. Significance statement Effusions, particularly of chylous nature, represent emergent and quite frequent adverse events in the management of patients affected by advanced MTC on treatment with the highly selective inhibitor selpercatinib. In this study, we evaluated, in a series of MTC patients treated with selpercatinib, the prevalence of pleural, pericardial, abdominal, and/or pelvic effusions. Insights into the diagnosis and treatment of the effusions are provided as well as suggestions for clinical management.
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- 2022
22. Guidelines on Pancreatic Cystic Neoplasms: Major Inconsistencies With Available Evidence and Clinical Practice— Results From an International Survey
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Giovanni Marchegiani, Roberto Salvia, Andrianello Stefano, Balduzzi Alberto, Pollini Tommaso, Caravati Andrea, Maggino Laura, Zingaretti Caterina Costanza, Bassi Claudio, Abu Hilal Mohammed, Adham Mustapha, Adsay Volkan, Allen Peter, Arcidiacono Paolo, Barbu Sorin Traian, Basturk Olca, Besselink Marc, Brugge William, Bruno Marco, Büchler Markus, Cahen Djuna, Capurso Gabriele, Centeno Barbara, Conlon Kevin, Crippa Stefano, D'Onofrio Mirko, Dal Molin Marco, Das Koushik, Del Chiaro Marco, Dervenis Christos, Domínguez-Muñoz Juan Enrique, Esposito Irene, Falconi Massimo, Fernandez-del Castillo Carlos, Friess Helmut, Frigerio Isabella, Frulloni Luca, Furukawa Toru, Gabbrielli Armando, Gaujoux Sebastien, Ghaneh Paula, Gho Brian K. P, Gulbinas Antanas, Hackert Thilo, Hruban Ralph, Jang Jin-Young, Kim Sun Whe, Kimura Wataru, Kloeppel Günther, Lee Jeong Min, Lennon Anne Marie, Maker Ajay, Manfredi Riccardo, Matthaei Hanno, Mino-Kenudson Mari, Montagnini Andre Luis, Ohtsuka Takao, Radenkovic Dejan, Sahani Dushyant, Sahora Klaus, Sauvanet Alain, Scarpa Aldo, Schmidt Christian Max, Schulick Richard, Shrikhande Shailesh, Siriwardena Ajith, Smith Martin, Tanaka Masao, Vege Santhi Swaroop, Verbeke Caroline, Vollmer Charles, Werner Jens, Wolfgang Christopher, Wood Laura, Zamboni Giuseppe, and Zyromski Nicholas
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medicine.medical_specialty ,Hepatology ,business.industry ,Patient Selection ,Gastroenterology ,International survey ,Pancreatic Neoplasms ,Clinical Practice ,Health Care Surveys ,Family medicine ,Practice Guidelines as Topic ,medicine ,Humans ,Pancreatic Cyst ,Practice Patterns, Physicians' ,business ,Societies, Medical - Published
- 2021
23. sunny-as2: Enhancing SUNNY for Algorithm Selection (Extended Abstract)
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Tong Liu, Roberto Amadini, Maurizio Gabbrielli, and Jacopo Mauro
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SUNNY is a k-nearest neighbors based Algorithm Selection (AS) approach that schedules and runs a number of solvers for a given unforeseen problem. In this work we present sunny-as2, an enhancement of SUNNY for generic AS scenarios that advances the original approach with wrapper-based feature selection, neighborhood-size configuration and a greedy approach to speed-up the training phase. Empirical evidence shows that sunny-as2 is competitive w.r.t. state-of-the-art AS approaches.
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- 2022
24. Long-term lung ultrasound follow-up in patients after COVID-19 pneumonia hospitalization: A prospective comparative study with chest computed tomography
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Greta Barbieri, Luna Gargani, Vittoria Lepri, Stefano Spinelli, Chiara Romei, Annalisa De Liperi, Davide Chimera, Francesco Pistelli, Laura Carrozzi, Francesco Corradi, Lorenzo Ghiadoni, Joanne Spataro, Margherita Malacarne, Elisabetta Addante, Sabrina Agostini o Degl'Innocenti, Paolo De Carlo, Alessio Gregori, Sara Manieri, Chiara Deri, Sara Perelli, Arianna Sabattini, Simonetta Salemi, Federica Volpi, Leonardo Colligiani, Salvatore Claudio Fanni, Laura Tavanti, Roberta Pancani, Massimiliano Desideri, Nicoletta Carpenè, Luciano Gabbrielli, Alessandro Celi, Antonio Fideli, Chiara Cappiello, Claudia Meschi, Luca Visconti, Giovanna Manfredini, and Ferruccio Aquilini
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Internal Medicine - Abstract
During COVID-19 pandemic, lung ultrasound (LUS) proved to be of great value in the diagnosis and monitoring of patients with pneumonia. However, limited data exist regarding its use to assess aeration changes during follow-up (FU). Our study aims to prospectively evaluate 232 subjects who underwent a 3-month-FU program after hospitalization for COVID-19 at the University Hospital of Pisa. The goals were to assess the usefulness of standardized LUS compared with the gold standard chest computed tomography (CT) to evaluate aeration changes and to verify LUS and CT agreement at FU. Patients underwent in the same day a standardized 16-areas LUS and high-resolution chest CT reported by expert radiologists, assigning interpretative codes. Based on observations distribution, LUS score cut-offs of 3 and 7 were selected, corresponding to the 50th and 75th percentile, respectively. Patients with LUS scores above both these thresholds were older and with longer hospital stay. Patients with a LUS score ≥3 had more comorbidities. LUS and chest CT showed a high agreement in identifying residual pathological findings, using both cut-off scores of 3 (OR 14,7; CL 3,6-64,5, Sensitivity 91%, Specificity 49%) and 7 (OR 5,8; CL 2,3-14,3, Sensitivity 65%, Specificity 79%). Our data suggest that LUS is very sensitive in identifying pathological findings at FU after a hospitalization for COVID-19 pneumonia, compared to CT. Given its low cost and safety, LUS could replace CT in selected cases, such as in contexts with limited resources or it could be used as a gate-keeper examination before more advanced techniques.
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- 2022
25. P410 ROLE OF TELEMEDICINE IN PRIMARY AND SECONDARY PREVENTION OF CARDIOVASCULAR DISEASES
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S Nodari, F Fioretti, G Bollani, F Glisenti, and F Gabbrielli
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Cardiology and Cardiovascular Medicine - Abstract
Cardiovascular diseases have a high prevalence and incidence and are associated with a high rate of mortality and hospitalization; this is reflected in a reduction in quality of life and a high health care expenditure. The aim of our study was to evaluate the effectiveness of telemedicine in primary and secondary prevention, through the use of ECG, ABPM and Holter monitoring. Health Telematic Network, in collaboration with the University of Brescia and Federfarma, has installed in 6527 territorial pharmacies distributed in the country, a telematic network interconnected to a single Telemedicine platform, where cardiologists are available for H24 reporting and teleconsultation. The pharmacies performed 12–lead ECG in healthy subjects, with cardiovascular risk factors or ongoing symptoms referable to the cardiovascular system, ABPM in accordance with the guidelines for hypertension and Holter ECG in symptomatic patients (heart palpitations, syncope, lipothymias) or positive history for brady and tachyarrhythmias. In the period between 2016 and October 2021, we analyzed 660508 exams: 411526 ECG, 143869 cardiac Holter and 105113 ABPM. Of the 411526 ECGs, 14.5% of tracings showed abnormalities not compatible with the reported anamnestic data, therefore 59671 users were sent to the caregiver for further evaluation or diagnostic investigation; in 1.5% of cases, major abnormalities were detected, necessitating immediate referral of the patient to the emergency department. Of the 105113 ABPM, 37.2% of the examinations revealed abnormal blood pressure trends according to the SIIA classification, 39102 users were sent to the physician for the appropriate diagnostic and therapeutic measures. Of the 143869 Holters, 26326 patients (18.3%) were referred to the attending physician for major arrhythmias, 3008 patients (2.1%) were referred to the emergency department for red code arrhythmias (VT, grade 3 BAV, long QTc, high or low ventricular response AF with critical pauses). Our data show the important role of a Telemedicine network in primary and secondary cardiovascular prevention, able to provide early diagnosis and treatment of major events; the use of a national telemedicine network has also proved effective in the appropriate referral of subjects to the Emergency Department, with a positive impact in terms of health care expenditure containment.
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- 2022
26. C20 IMPACT OF TELEMEDICINE SERVICES DURING THE COVID–19 PANDEMIC
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S Nodari, F Fioretti, F Glisenti, G Bollani, and F Gabbrielli
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Cardiology and Cardiovascular Medicine - Abstract
During the Italian national lockdown (11/3 to 4/5/2020), the COVID–19 epidemic caused a shift of hospital resources towards the management of the COVID+ patient; hospitals saw a progressive drop of admissions for acute myocardial infarction and arrhythmias. In order to verify the role of Telemedicine in this context, we compared 6104 ECGs recorded by 5000 pharmacies, with the 17280 ECGs of the same period of 2019, evaluated and stored in the telemedicine platform of Health Telematic Network (HTN), in collaboration with the Department of Cardiology of the University of Brescia, Federfarma and Istituto Superiore di Sanità. Chest pain was the reason for examination in 298 patients (4.88%) vs 402 (2.33%) in 2019 (+109.86%). Of these, 118 were in Lombardy, (39.50% of the total), 36 in the province of Brescia (30.50%) and 28 in the province of Bergamo (23.73%). 8 ECGs showed a STEMI picture, (2.68%), compared with 7 STEMIs (1.74%) detected in 2019 (+ 54.17%). All of these patients were referred urgently to the emergency department. We detected Atrial Fibrillation in 344 patients (5.64%), vs 393 (2.27%) in 2019, (+ 40.25%); 32 cases of Atrial Flutter (0.52%), vs 25 (0.14%) detected in 2019 (+ 26.92%). Finally, we found paroxysmal supraventricular tachycardia in 8 cases (0.13%), vs 6 cases (0.03%) detected in 2019(+ 23.07%). During the lockdown period, 384 patients (6.29%) were referred to the emergency department for symptomatic tachyarrhythmia, vs 424 patients (3.47%) in 2019(+ 55.16%). In Lombardy, 194 cases of tachyarrhythmia were reported in territorial pharmacies (about 50.52% of the total in Italy), 93 in the Brescia area (47.94%), 50 in the Bergamo area (25.77%). Conclusions: a high number of patients with cardiovascular symptoms preferred to refer to territorial pharmacies during the COVID–19 blast. Telemedicine allowed patients with STEMI to access hospitals quickly, avoiding a serious diagnostic delay; a significant proportion of accesses to local pharmacies for chest pain occurred in the region most affected by the COVID–19 outbreak; the service also allowed to refer to the hospital only patients with clinically relevant tachyarrhythmias, avoiding delay of care and inappropriate accesses. This underlines how the telemedicine network provided by pharmacies can become an important resoruce for the citizen, supporting the services of the Italian National Health System.
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- 2022
27. Comparison between EUS-guided fine-needle aspiration cytology and EUS-guided fine-needle biopsy histology for the evaluation of pancreatic neuroendocrine tumors
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Erminia Manfrin, Luca Frulloni, Anna Meneghetti, Federico Pin, Stefano Francesco Crinò, Maria Cristina Conti Bellocchi, Alberto Larghi, Antonio Amodio, Antonio Facciorusso, Laura Bernardoni, Serena Ammendola, Alice Parisi, Luca Landoni, Armando Gabbrielli, Maria Gaia Mastrosimini, and Salvatore Paiella
- Subjects
Adult ,Male ,medicine.medical_specialty ,Proliferative index ,Endocrinology, Diabetes and Metabolism ,Biopsy, Fine-Needle ,Pancreatic surgery ,Subgroup analysis ,Neuroendocrine tumors ,Small pNET ,Fine needle biopsy ,03 medical and health sciences ,0302 clinical medicine ,Cytology ,Biopsy ,medicine ,Humans ,Endoscopic Ultrasound-Guided Fine Needle Aspiration ,Grading (tumors) ,Endoscopic ultrasound tissue acquisition ,Ki-67 proliferative index ,Aged ,Retrospective Studies ,Hepatology ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,Histology ,Middle Aged ,medicine.disease ,digestive system diseases ,Pancreatic Neoplasms ,Neuroendocrine Tumors ,030220 oncology & carcinogenesis ,Female ,030211 gastroenterology & hepatology ,Radiology ,business - Abstract
Studies comparing EUS-guided fine-needle aspiration (EUS-FNA) with EUS-guided fine-needle biopsy (EUS-FNB) for the evaluation of pancreatic neuroendocrine tumors (pNETs) are lacking. We aimed at comparing EUS-FNA with EUS-FNB in terms of Ki-67 proliferative index (PI) estimation capability, cellularity of the samples, and reliability of Ki-67 PI/tumor grading compared with surgical specimens.Patients diagnosed with pNETs on EUS and/or surgical specimens were retrospectively identified. Specimens were re-evaluated to assess Ki-67 PI feasibility, sample cellularity by manual counting, and determination of Ki-67 PI value. Outcomes in the EUS-FNA and EUS-FNB groups were compared. Kendall rank test was used for Ki-67 PI correlation between EUS and surgical specimens. Subgroup analysis including small (≤20 mm), non-functioning pNETs was performed.Three-hundred samples from 292 lesions were evaluated: 69 EUS-FNA cytology and 231 EUS-FNB histology. Ki-67 PI feasibility was similar for EUS-FNA and EUS-FNB (91.3% vs. 95.7%, p = 0.15), while EUS-FNB performed significantly better in the subgroup of 179 small pNETs (88.2% vs. 96.1%, p = 0.04). Rate of poor cellulated (500 cells) specimens was equal between EUS-FNA and EUS-FNB. A significant correlation for Ki-67 PI values between EUS and 92 correspondent surgical specimens was found in both groups, but it was stronger with EUS-FNB (tau = 0.626, p 0.0001 vs. tau = 0.452, p = 0.031). Correct grading estimation was comparable between the two groups (p = 0.482).Our study showed stronger correlation for Ki-67 values between EUS-FNB and surgical specimens, and that EUS-FNB outperformed EUS-FNA in the evaluation of small pNETs. EUS-FNB should become standard of care for grading assessment of suspected pNETs.
- Published
- 2021
28. OC.01.2 UTILITY OF EUS-FNB WITH END-CUTTING NEEDLES IN SUSPECTED FOCAL/SEGMENTAL AUTOIMMUNE PANCREATITIS: RESULTS FROM A PROSPECTIVE STUDY
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Bellocchi M.C. Conti, S. Crino, L. Bernardoni, N. De Pretis, A. Gabbrielli, and L. Frulloni
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Hepatology ,Gastroenterology - Published
- 2023
29. OC.13.2 ENDOSCOPIC PAPILLECTOMY: A MULTICENTER, RETROSPECTIVE, NATIONWIDE STUDY AFTER THE STANDARDISATION OF THE TECHNIQUE
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C. Binda, S. Fabbri, A. Cucchetti, M. Mutignani, A. Tringali, R. Di Mitri, A. Fugazza, R. Sassatelli, A. Gabbrielli, P.G. Arcidiacono, F. Di Matteo, C. Coluccio, M. Di Marco, C. Spada, A. Fantin, C. De Angelis, R. Macchiarelli, F. Perri, M. Manno, L. Cugia, A. Mussetto, T. Schepis, D. Scimeca, L. Da Rio, P. Cecinato, S. Crino, A. Repici, I. Tarantino, A. Anderloni, C. Fabbri, and G. I-Eus
- Subjects
Hepatology ,Gastroenterology - Published
- 2023
30. OC.05.5 ENDOSCOPIC TISSUE ACQUISITION DURING ERCP IN BILIARY STENOSIS: RETROSPECTIVE ANALYSIS OF CASES FROM A TERTIARY REFERRAL HOSPITAL
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M. Budel, L. Bernardoni, S.F. Crino, Bellocchi M.C. Conti, Stefano S. Di, V. Fino, and A. Gabbrielli
- Subjects
Hepatology ,Gastroenterology - Published
- 2023
31. T.08.4 THE ACCURACY OF EUS-GUIDED THROUGH-THE-NEEDLE BIOPSY IN THE PREOPERATIVE DIAGNOSIS OF RARE PANCREATIC CYSTS
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M.C. Conti Bellocchi, A. Brillo, L. Bernardoni, A. Gabbrielli, E. Manfrin, and S. Crino
- Subjects
Hepatology ,Gastroenterology - Published
- 2023
32. An Echo Suppression Delay Estimator for Angle-of-Arrival Ultrasonic Indoor Localization
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Leonhard Reindl, Fabian Hoflinger, Wenxin Xiong, Dominik Jan Schott, Stefan J. Rupitsch, Johannes Wendeberg, Georg Fischer, Andrea Gabbrielli, Christian Schindelhauer, and Publica
- Subjects
microphone arrays ,Computer science ,Microphone ,echo suppression ,angle of arrival (AoA) ,time-delay estimation ,wireless sensor networks (WSNs) ,02 engineering and technology ,ultrasonic indoor localization ,Signal ,Location Awareness ,Angle of arrival ,0202 electrical engineering, electronic engineering, information engineering ,Oversampling ,Electrical and Electronic Engineering ,acoustics ,signal processing ,Instrumentation ,Digital signal processing ,estimation ,delays ,business.industry ,020208 electrical & electronic engineering ,Estimator ,Ultrasonic sensor ,business ,delay effects ,signal processing algorithms ,Algorithm ,Communication channel - Abstract
In this article, we propose a new robust, stable, accurate, and efficient time-delay estimation scheme for the angle-of-arrival (AoA) ultrasonic indoor single-source localization systems. The AoA technique employing microphone arrays and ultrasonic signal emitting sources has turned out to be a promising alternative to the conventional distance-based ultrawideband systems for indoor localization. The crux of AoA estimation lies in the derivation of time-delay estimates, which is typically handled by advanced digital signal processing approaches based on cross-correlation and matching algorithms. The calculation of the channel response for each received signal and the conversion from the time to the time-delay domain consent our echo suppression delay estimator (ESDE) to apply echo suppression, in order to overcome the typical challenges introduced by the channel in indoor environments. Moreover, the optimization of the cross-correlation algorithm through oversampling the cross power spectrum and the curve-fitting algorithm allows to ensure subsample precision results. The performances of our developed AoA estimation system are evaluated by carrying out real-world experiments and compared with the state-of-the-art generalized cross correlators. Our ESDE algorithm is shown to outperform several generalized solutions.
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- 2021
33. Analog FM free-space optical communication based on a mid-infrared quantum cascade laser frequency comb
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Francesco Cappelli, Nicola Corrias, Paolo De Natale, Luigi Consolino, and Tecla Gabbrielli
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Physics ,business.industry ,Optical communication ,FOS: Physical sciences ,Physics::Optics ,Applied Physics (physics.app-ph) ,Physics - Applied Physics ,Atomic and Molecular Physics, and Optics ,law.invention ,Amplitude modulation ,Frequency comb ,Analog signal ,Optics ,law ,Digital signal ,business ,Quantum cascade laser ,Frequency modulation ,Free-space optical communication ,Optics (physics.optics) ,Physics - Optics - Abstract
Quantum cascade laser frequency combs are nowadays well-appreciated sources for infrared spectroscopy. Here their applicability for free-space optical communication is demonstrated. The spontaneously-generated intermodal beat note of the frequency comb is used as carrier for transferring the analog signal via frequency modulation. Exploiting the atmospheric transparency window at 4 $\mu$m, an optical communication with a signal-to-noise ratio up to 65 dB is realized, with a modulation bandwidth of 300 kHz. The system tolerates a maximum optical attenuation exceeding 35 dB. The possibility of parallel transmission of an independent digital signal via amplitude modulation at 5 MS/s is also demonstrated., Comment: 17 pages, 13 figures
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- 2022
34. PREDICTORS OF SEVERE ADVERSE EVENTS AFTER ENDOSCOPIC ULTRASOUND THROUGH-THE-NEEDLE BIOPSY OF PANCREATIC CYSTS: A MACHINE LEARNING APPROACH
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A. Facciorusso, B. Kovacevic, D. Yang, F. Vilas-Boas, B. Martínez-Moreno, S. Stigliano, G. Rizzatti, M. Sacco, M. Arevalo-Mora, L. Villarreal-Sanchez, M.C. Conti Bellocchi, L. Bernardoni, A. Gabbrielli, L. Barresi, P. Gkolfakis, C. Robles-Medranda, C. De Angelis, A. Larghi, F.M. Di Matteo, J. Aparicio, G. Macedo, P. Draganov, P. Vilmann, A. Repici, and S.F. Crinò
- Published
- 2022
35. SEAWALL: Seamless Low Latency Cloud Platforms for the Industry 4.0
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Lorenzo Bacchiani, Giuseppe De Palma, Luca Sciullo, Mario Bravetti, Marco De Felice, Maurizio Gabbrielli, Gianluigi Zavattaro, Roberto Della Penna, Corrado Iorizzo, Andrea Livaldi, Luca Magnotta, Mirko Orsini, University of Bologna/Università di Bologna, Foundations of Component-based Ubiquitous Systems (FOCUS), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Dipartimento di Informatica - Scienza e Ingegneria [Bologna] (DISI), Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Bonfiglioli S.P.A., Italy, Philip Morris International, and DataRiver S.r.l.
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[INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC] - Abstract
International audience; The paper presents the SEAWALL platform enabling heterogeneous data acquisition and low-latency processing for the Industry 4.0, developed within the homonymous project founded by the Italian BIREX industrial consortium. The architecture features cutting-edge technologies (such as Kubernetes, ISTIO, KubeEdge, W3C WoT), in order to support the seamless orchestration of workloads among the nodes of a cloud-edge continuum in QoS-aware scenarios where the latency requirement of the anomaly detection must be continuously assessed. The paper presents the industrial use-case from the SEAWALL project and the components of the cloud/edge architecture.
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- 2022
36. Cannabis and Driving: Developing Guidelines for Safety Policies
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Federico Manetti, Silvio Chericoni, Anna Marrocco, Matteo Scopetti, Martina Padovano, Alessandro Santurro, Paola Frati, Mario Gabbrielli, and Vittorio Fineschi
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impairment assessment ,zero tolerance ,Cannabinoids ,driving skill ,per se limit ,safety policies ,Pharmaceutical Science ,Biotechnology - Abstract
Introduction: The dynamism in the regulatory frameworks concerning the consumption of cannabinoids has placed their effects on cognitive and psychomotor skills at the center of the scientific debate. In consideration of the potential repercussions on public safety, particular attention has been focused on the impairment of driving skills, opening up the need to specifically regulate driving under the effects of cannabinoids. Pharmacokinetics: Both native cannabinoids and metabolites show a long positivity at low concentrations in the biological fluids, especially in the case of chronic consumption. Qualitative positivity to cannabinoids does not itself prove the presence of detrimental effects, which require the presence of active substances at relevant concentrations. Driving Skill Impairment: Multiple studies highlight a tetrahydrocannabinol (THC) concentration- based alteration of driving skills mainly affecting automatisms, whereas skills subjected to cognitive control are preserved up to higher dosages. The evidence relating to associations with other substances, chronic consumption and other cannabinoids, on the other hand, is still burdened by a high degree of uncertainty. Regulation Policies: Different models can be adopted in the regulation of driving under the effects of cannabinoids: sanctions can be applied in case of qualitative positivity, cannabinoids concentration above a defined threshold, or in presence of a demonstrated state of cognitive alteration. Conclusion: "Per se limit" with a quantitative THC cut-off between 3.5 and 5 ng/ml can currently be considered the most balanced choice. Finally, the analysis carried out allowed to identify pitfalls in both scientific and legislative fields for the improvement of safety policies
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- 2022
37. Immunoglobulin G4-Related Disease Responder Index Correlates With the Risk of 1-Year Relapse in Type 1 Autoimmune Pancreatitis
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Stefano Francesco Crinò, Lorenzo Brozzi, Teresa Marzia Rogger, Antonio Amodio, Luca Frulloni, Giovanni Orsolini, Rachele Ciccocioppo, Maria Cristina Conti Bellocchi, Nicolò de Pretis, Armando Gabbrielli, and Giulia De Marchi
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Adult ,Male ,medicine.medical_specialty ,Prognostic factor ,Time Factors ,Autoimmune Pancreatitis ,Endocrinology, Diabetes and Metabolism ,Disease ,Severity of Illness Index ,Gastroenterology ,Disease activity ,Endocrinology ,Recurrence ,Risk Factors ,Internal medicine ,Immunoglobulin g4 ,Outcome Assessment, Health Care ,IgG4-related diseases ,Internal Medicine ,medicine ,Humans ,Pancreas ,Aged ,Retrospective Studies ,Autoimmune pancreatitis ,IgG4 ,Hepatology ,medicine.diagnostic_test ,biology ,business.industry ,Magnetic resonance imaging ,Middle Aged ,medicine.disease ,Immunoglobulin G ,biology.protein ,Female ,Steroids ,Immunoglobulin G4-Related Disease ,Antibody ,business ,DISEASE RELAPSE - Abstract
OBJECTIVES Type 1 autoimmune pancreatitis (AIP) is a manifestation of immunoglobulin G4-related diseases (IgG4-RD). To evaluate the activity of the disease, the IgG4-RD responder index (RI) has been created. This study evaluated the IgG4-RD RI as prognostic factor of 1-year disease relapse. METHODS Patients diagnosed with type 1 AIP between January 2012 and December 2016, with available magnetic resonance imaging and IgG4 dosage, were enrolled. Immunoglobulin G4-RD RI was calculated at baseline (time 0), and at 3 to 6 and 12 to 18 months after the end of steroid therapy (time 1 and time 2, respectively). RESULTS Thirty-three patients were included in the study. Immunoglobulin G4-RD RI was 8.9 (standard deviation [SD], 3.8) at time 0, 2.4 (SD, 3.1) at time 1 (P < 0.0001 vs time 0), and 4.2 (SD, 3.9) at time 2 (P = 0.02 vs time 1). Fourteen patients who relapsed within 1 year showed a higher mean value of IgG4-RD RI at time 0 (10.9; SD, 4.3) versus 19 who did not (7.4; SD, 2.6; P = 0.012). This difference was observed also at time 2 (6.8 vs 2.1; P = 0.002). CONCLUSIONS Immunoglobulin G4-RD RI correlates with type 1 AIP disease activity, and it predicts disease relapse within 1 year.
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- 2021
38. Spatial behaviour of the Apennine hare: Are females territorial?
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Giorgia Romeo, Sandro Lovari, Martina Calosi, Francesca Cozzi, Chiara Gabbrielli, Chiara Giari, Letizia Torniai, Emiliano Mori, and Niccolò Fattorini
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Zoology ,Animal Science and Zoology ,Biology ,Mating system ,Ecology, Evolution, Behavior and Systematics - Published
- 2020
39. Safety or satiety? Spatiotemporal behaviour of a threatened herbivore
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Sandro Lovari, Emiliano Mori, Francesco Ferretti, Chiara Giari, Letizia Torniai, Giorgia Romeo, Niccolò Fattorini, Chiara Gabbrielli, and Francesca Cozzi
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0106 biological sciences ,Herbivore ,Ecology ,Home range ,05 social sciences ,Nocturnal ,Biology ,Spatial behaviour ,Habitat selection ,010603 evolutionary biology ,01 natural sciences ,Predation ,Lepus corsicanus ,Habitat ,Animal ecology ,Locomotor activity patterns ,Threatened species ,0501 psychology and cognitive sciences ,Animal Science and Zoology ,Mammal ,050102 behavioral science & comparative psychology ,Ecology, Evolution, Behavior and Systematics - Abstract
Movements, habitat use, and activity of herbivorous species are mainly influenced by trade-offs between food availability and daily/seasonal variation in predation risk. Nevertheless, studies conducted across several seasons and evaluating both spatial and temporal responses of meso-small herbivores are still scanty. Additionally, information on spatiotemporal behaviour is often lacking for cryptic, localised species, which may limit conservation actions. We evaluated how sex, time of day, seasonality, and habitat type—reflecting trade-offs in predation risk and access to food resources—influenced the spatial behaviour and locomotor activity of an herbivorous mammal, the Apennine hare, a threatened species endemic to central-southern Italy. In a 4-year study, we intensively radio-tracked 12 individuals, providing the first insights on the spatiotemporal ecology of this lagomorph. Sex affected neither home range size nor habitat selection. Home range size was larger during the night and in warm months, when hares moved to the most energetically rewarding habitat type for feeding activities, i.e., cultivations. At both study area and home range spatial scales, habitat selection did not vary between the cold and the warm months. At the study area scale, hares avoided deciduous woodland and human settlements, whereas selected the Mediterranean scrubwood and cultivations. Within home ranges, at night, Apennine hares selected risky patches, i.e., cultivations as feeding grounds, whereas in daylight, the safer Mediterranean scrubwood was used for cover and resting. Throughout the year, Apennine hares were mostly nocturnal and were more active in open than in concealed habitats, with no differences between sexes. Bright nights, i.e., with full moon and clear sky, inhibited activity in open areas but not in cover, likely to reduce predation risk. Our findings emphasised the role of feeding/antipredatory requirements in shaping spatiotemporal behaviour of meso-small mammals, with potential consequences for the conservation of threatened species.
- Published
- 2020
40. Patterns of Long COVID Symptoms: A Multi-Center Cross Sectional Study
- Author
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Yelin, D, Margalit, I, Nehme, M, Bordas-Martínez, J, Pistelli, F, Yahav, D, Guessous, I, Durà-Miralles, X, Carrozzi, L, Shapira-Lichter, I, Vetter, P, Peleato-Catalan, D, Tiseo, G, Wirtheim, E, Kaiser, L, Gudiol, C, Falcone, M, Leibovici, L and on behalf of the LongCOV Research Group: Dorit Shitenberg, Tanya, Babich, Talya, Kalfon, Michal, Mor, Yair, Shafir, Hadar, Agmon, Ori, Tishler, Donna, Abecasis, Nitzan, Karny-Epstein, Alaa, Atamna, Vered, Daitch, Laura, Tavanti, Chimera, Davide, Fideli, Antonio, Margherita, Biagini, Alessandra, Pagano, Roberta, Pancani, Massimiliano, Desideri, Nicoletta, Carpenè, Luciano, Gabbrielli, Maurizio, Lucchesi, Celi, Alessandro, Micol, Micheli, Ghiadoni, Lorenzo, Barbieri, Greta, Chiara, Romei, Annalisa, Deliperi, Monzani, Fabio, Ferruccio, Aquilini, Michele, Cristofano, Valentina, Galfo, Menichetti, Francesco, Barbieri, Chiara, Alba, Bergas, Vanessa, Vicens-Zygmunt, Cristina, Orive-Lago, Meritxell, Regi-Bosque, Ana, Peñalver-Garcia, Antonia, Requesens-Catalan, Nuria, Perez-Gutiérrez, Giovanna, Miranda, Barbara, Navarro, Eva, Alonso-Bes, Olga, Bella, Enilda, Cordero, Elena, Carrera-Izquierdo, and Sonia, Martínez-Carmona
- Subjects
post-COVID ,Serveis de cures de llarga durada ,Long-term care facilities ,SARS-CoV-2 ,COVID-19 ,long lasting symptoms ,General Medicine - Abstract
Background: Long COVID has become a burden on healthcare systems worldwide. Research into the etiology and risk factors has been impeded by observing all diverse manifestations as part of a single entity. We aimed to determine patterns of symptoms in convalescing COVID-19 patients. Methods: Symptomatic patients were recruited from four countries. Data were collected regarding demographics, comorbidities, acute disease and persistent symptoms. Factor analysis was performed to elucidate symptom patterns. Associations of the patterns with patients’ characteristics, features of acute disease and effect on daily life were sought. Results: We included 1027 symptomatic post-COVID individuals in the analysis. The majority of participants were graded as having a non-severe acute COVID-19 (N = 763, 74.3%). We identified six patterns of symptoms: cognitive, pain-syndrome, pulmonary, cardiac, anosmia-dysgeusia and headache. The cognitive pattern was the major symptoms pattern, explaining 26.2% of the variance; the other patterns each explained 6.5–9.5% of the variance. The cognitive pattern was higher in patients who were outpatients during the acute disease. The pain-syndrome pattern was associated with acute disease severity, higher in women and increased with age. The pulmonary pattern was associated with prior lung disease and severe acute disease. Only two of the patterns (cognitive and cardiac) were associated with failure to return to pre-COVID occupational and physical activity status. Conclusion: Long COVID diverse symptoms can be grouped into six unique patterns. Using these patterns in future research may improve our understanding of pathophysiology and risk factors of persistent COVID, provide homogenous terminology for clinical research, and direct therapeutic interventions.
- Published
- 2022
41. On the evaluation of (meta-)solver approaches
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Roberto Amadini, Maurizio Gabbrielli, Tong Liu, and Jacopo Mauro
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Performance (cs.PF) ,FOS: Computer and information sciences ,Computer Science - Machine Learning ,Computer Science - Performance ,Artificial Intelligence (cs.AI) ,Artificial Intelligence ,Computer Science - Artificial Intelligence ,Computer Science::Mathematical Software ,Computer Science::Numerical Analysis ,Machine Learning (cs.LG) - Abstract
Meta-solver approaches exploit many individual solvers to potentially build a better solver. To assess the performance of meta-solvers, one can adopt the metrics typically used for individual solvers (e.g., runtime or solution quality) or employ more specific evaluation metrics (e.g., by measuring how close the meta-solver gets to its virtual best performance). In this paper, based on some recently published works, we provide an overview of different performance metrics for evaluating (meta-)solvers by exposing their strengths and weaknesses.
- Published
- 2022
- Full Text
- View/download PDF
42. PREDICTORS OF ADVERSE EVENTS AFTER ENDOSCOPIC ULTRASOUND THROUGH-THE-NEEDLE BIOPSY OF PANCREATIC CYSTS: A RECURSIVE PARTITIONING ANALYSIS
- Author
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Facciorusso A, Kovacevic B, Yang D, Vilas-Boas F, Martínez B, Stigliano S, Rizzatti G, Sacco M, Arevalo-Mora M, Villarreal-Sanchez L, Conti Bellocchi MC, Bernardoni L, Gabbrielli A, Barresi L, Gkolfakis P, Robles-Medranda C, De Angelis C, Larghi A, Di Matteo F, Aparicio JR, Macedo G, Draganov PV, Vilmann P, Pecchia L, Repici A, and Crinó SF
- Abstract
Background and study aims Endoscopic ultrasound-guided through-the-needle biopsy (TTNB) of pancreatic cystic lesions (PCLs) is associated with a non-negligible risk for adverse events (AEs). We aimed to identify the hierarchic interaction among independent predictors for TTNB-related AEs and to generate a prognostic model using recursive partitioning analysis (RPA). Patients and methods Multicenter retrospective analysis of 506 patients with PCLs who underwent TTNB. RPA of predictors for AEs was performed and the model was validated by means of bootstrap resampling. Results Mean cysts size was 36.7mm. Most common diagnoses were intraductal papillary mucinous neoplasm (IPMN, 45%), serous cystadenoma (18.8%), and mucinous cystadenoma (12.8%). Fifty-eight (11.5%) AEs were observed. At multivariate analysis, age (odds ratio [OR] 1.32, 1.09-2.14; p=0.05), number of TTNB passes (OR from 2.17, 1.32-4.34 to OR 3.16, 2.03-6.34 with the increase of the number of passes), complete aspiration of the cyst (OR 0.56, 0.31-0.95; p=0.02), and diagnosis of IPMN (OR 4.16, 2.27-7.69; p
- Published
- 2022
43. Intensity correlation in harmonic comb emitted by quantum cascade laser
- Author
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Tecla Gabbrielli, Natalia Bruno, Nicola Corrias, Simone Borri, Luigi Consolino, Mathieu Bertrand, Mehran Shahmohammadi, Martin Franckié, Mattias Beck, Jérôme Faist, Alessandro Zavatta, Paolo De Natale, and Francesco Cappelli
- Abstract
We demonstrate the presence of intensity correlation in the harmonic comb emitted by quantum cascade lasers, paving the way for a deeper understanding of the role of the four-wave-mixing process enabling this emission.
- Published
- 2022
44. Thermodynamic Performance Evaluation of an Innovative Steam Compressor Using Zeolite-Water Adsorption Reactor
- Author
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Fulvio Buzzi, Michelangelo Di Palo, and Roberto Gabbrielli
- Subjects
Energy Engineering and Power Technology ,Industrial and Manufacturing Engineering - Published
- 2022
45. Free-space optical communication with a quantum cascade laser frequency comb
- Author
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Nicola Corrias, Tecla Gabbrielli, Paolo De Natale, Luigi Consolino, and Francesco Cappelli
- Abstract
We demonstrate the potentiality of quantum-cascade-laser frequency combs for optical communication in the atmospheric transparency window around 4 µm. The intermodal beat note is used as carrier for transmitting the analog signal via frequency-modulation.
- Published
- 2022
46. Supplementary document for Analog FM free-space optical communication based on a mid-infrared quantum cascade laser frequency comb - 5535611.pdf
- Author
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Corrias, Nicola, Gabbrielli, Tecla, De Natale, Paolo, Consolino, Luigi, and Cappelli, Francesco
- Subjects
Physics::Optics ,Physics::Atomic Physics ,Astrophysics::Galaxy Astrophysics - Abstract
Analog FM free-space optical communication based on a mid-infrared quantum cascade laser frequency comb: supplemental document
- Published
- 2022
- Full Text
- View/download PDF
47. Content-Based Textual File Type Detection at Scale
- Author
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Stefano Zacchiroli, Francesca Del Bonifro, Maurizio Gabbrielli, Bonifro F.D., Gabbrielli M., and Zacchiroli S.
- Subjects
FOS: Computer and information sciences ,Computer Science - Machine Learning ,Source code ,Information retrieval ,Programming language detection ,Computer science ,media_common.quotation_subject ,Feature vector ,computer.file_format ,File format ,computer.software_genre ,Machine Learning (cs.LG) ,Software Engineering (cs.SE) ,Computer Science - Software Engineering ,Scripting language ,Data_FILES ,Code (cryptography) ,Executable ,computer ,Classifier (UML) ,Word (computer architecture) ,machine learning ,media_common - Abstract
Programming language detection is a common need in the analysis of large source code bases. It is supported by a number of existing tools that rely on several features, and most notably file extensions, to determine file types. We consider the problem of accurately detecting the type of files commonly found in software code bases, based solely on textual file content. Doing so is helpful to classify source code that lack file extensions (e.g., code snippets posted on the Web or executable scripts), to avoid misclassifying source code that has been recorded with wrong or uncommon file extensions, and also shed some light on the intrinsic recognizability of source code files. We propose a simple model that (a) use a language-agnostic word tokenizer for textual files, (b) group tokens in 1-/2-grams, (c) build feature vectors based on N-gram frequencies, and (d) use a simple fully connected neural network as classifier. As training set we use textual files extracted from GitHub repositories with at least 1000 stars, using existing file extensions as ground truth. Despite its simplicity the proposed model reaches ≈ 85% in our experiments for a relatively high number of recognized classes (more than 130 file types).
- Published
- 2021
48. Localization of Acoustic Gas Leakage Sources with a Circular Microphone Array
- Author
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Georg Fischer, Fisnik Zeqiri, Andrea Gabbrielli, Dominik Jan Schott, Joan Bordoy, Wenxin Xiong, Fabian Hoflinger, Johannes Wendeberg, Kai Fischer, Christian Schindelhauer, and Stefan Johann Rupitsch
- Published
- 2021
49. Two Efficient and Easy-to-Use NLOS Mitigation Solutions to Indoor 3-D AOA-Based Localization
- Author
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Xiong, Wenxin, Bordoy, Joan, Gabbrielli, Andrea, Fischer, Georg, Schott, Dominik Jan, Hoeflinger, Fabian, Wendeberg, Johannes, Schindelhauer, Christian, and Rupitsch, Stefan Johann
- Subjects
Signal Processing (eess.SP) ,FOS: Electrical engineering, electronic engineering, information engineering ,Electrical Engineering and Systems Science - Signal Processing - Abstract
This paper proposes two efficient and easy-to-use error mitigation solutions to the problem of three-dimensional (3-D) angle-of-arrival (AOA) source localization in the mixed line-of-sight (LOS) and non-line-of-sight (NLOS) indoor environments. A weighted linear least squares estimator is derived first for the LOS AOA components in terms of the direction vectors of arrival, albeit in a sub-optimal manner. Next, data selection exploiting the sum of squared residuals is carried out to discard the error-prone NLOS connections. In so doing, the first approach is constituted and more accurate closed-form location estimates can be obtained. The second method applies a simulated annealing stochastic framework to realize the robust $\ell_1$-minimization criterion, which therefore falls into the methodology of statistical robustification. Computer simulations and ultrasonic onsite experiments are conducted to evaluate the performance of the two proposed methods, demonstrating their outstanding positioning results in the respective scenarios., This paper has been accepted for oral presentation at 2021 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 29 Nov. -- 2 Dec. 2021, Lloret de Mar, Spain
- Published
- 2021
50. Biomass oxy-CO2 gasification process for bio-methane production: an experimental and numerical activity
- Author
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Roberto Gabbrielli, Federica Barontini, Stefano Frigo, Giacomo Flori, Nicola Fratianni, and Pietro Sica
- Subjects
History ,Computer Science Applications ,Education - Abstract
Biomass gasification is a thermochemical process in which the biomass is converted into a mixture of gases, called syngas, commonly utilised in thermal machines to produce electricity and heat. In the present research activity, the conventional air-gasification in downdraft gasifier is replaced by oxy-CO2 gasification technology. This strategy allows to obtain a nitrogen-free syngas, mainly composed by CO, H2, CO2 and CH4, which can be used into the synthesis of various bio-fuels like methanol or synthetic natural gas (SNG). Carbon dioxide is utilized as gasifying agent together with oxygen to mitigate the reactivity of the latter, which can lead to excessive reaction temperatures. In particular, the present work shows the preliminary results of an experimental campaign carried on utilizing a small scale downdraft gasifier (max thermal power of roughly 100 kW) fed with wood pellet and using a mixture of oxygen and CO2 as gasification agent. The experimental results have been utilized to calibrate a pseudo-kinetic model of the oxy-CO2 gasification process, implemented in Aspen Plus environment. To analyse the possibility to transform the produced syngas into methane, an additional numerical model of a methanation plant was then utilised. As a whole, the numerical analysis confirms its usefulness in predicting the performance of the gasifier, which can reach a cold gas efficiency of around 70%, while the methanation plant can achieve a production of roughly 20 kg of methane per 100 kg of gasified wood.
- Published
- 2022
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