38 results on '"Pancheri P"'
Search Results
2. First results on monolithic CMOS detector with internal gain
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Follo, U., Gioachin, G., Ferrero, C., Mandurrino, M., Bregant, M., Bufalino, S., Carnesecchi, F., Cavazza, D., Colocci, M., Corradino, T., Rolo, M. Da Rocha, Di Nicolantonio, G., Durando, S., Margutti, G., Mignone, M., Nania, R., Pancheri, L., Rivetti, A., Sabiu, B., de Souza, G. G. A., Strazzi, S., and Wheadon, R.
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
In this paper we report on a set of characterisations carried out on the first monolithic LGAD prototype integrated in a customised 110 nm CMOS process having a depleted active volume thickness of 48 $\mu$m. This prototype is formed by a pixel array where each pixel has a total size of 100 $\mu$m $\times$ 250 $\mu$m and includes a high-speed front-end amplifier. After describing the sensor and the electronics architecture, both laboratory and in-beam measurements are reported and described. Optical characterisations performed with an IR pulsed laser setup have shown a sensor internal gain of about 2.5. With the same experimental setup, the electronic jitter was found to be between 50 ps and 150 ps, depending on the signal amplitude. Moreover, the analysis of a test beam performed at the Proton Synchrotron (PS) T10 facility of CERN with 10 GeV/c protons and pions indicated that the overall detector time resolution is in the range of 234 ps to 244 ps. Further TCAD investigations, based on the doping profile extracted from $C(V)$ measurements, confirmed the multiplication gain measured on the test devices. Finally, TCAD simulations were used to tune the future doping concentration of the gain layer implant, targeting sensors with a higher avalanche gain. This adjustment is expected to enhance the timing performance of the sensors of the future productions, in order to cope with the high event rate expected in most of the near future high-energy and high-luminosity physics experiments, where the time resolution will be essential to disentangle overlapping events and it will also be crucial for Particle IDentification (PID).
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- 2024
3. Raoul Gatto and Bruno Touschek's joint legacy in the rise of electron-positron physics
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Bonolis, Luisa, Buccella, Franco, and Pancheri, Giulia
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Physics - History and Philosophy of Physics ,High Energy Physics - Phenomenology - Abstract
Raoul Gatto and Bruno Touschek's collaboration in the establishment of electron positron colliders as a fundamental discovery tool in particle physics will be illustrated. In particular, we will tell the little-known story of how Gatto and Touschek's pioneering vision combined to provide the theoretical foundations for AdA, the first matter-antimatter collider, and how their friendship with Wolfgang Pauli and Gerhard L\"uders was crucial to their understanding of the CPT theorem, the basis for AdA's success. We will see how these two exceptional scientists shaped physics between Rome and Frascati, from the proposal to build AdA and, soon after in 1961, the larger machine ADONE, to the discovery of the $J/\Psi$ particle in 1974. We will also highlight Gatto and Touschek's contribution in mentoring an extraordinary cohort of students and collaborators whose work contributed to the renaissance of Italian theoretical physics after the Second World War and to the establishment of the Standard Model of particle physics., Comment: 69 pages, 29 figures, 3 appendices, doubling the previous version in number of pages, many more figures and added bibliography, enlarging version1 to incorporate Gatto and Touschek's legacy beyond AdA with extra sections about ADONE, the development of the Frascati Laboratory theory group, the appearance of multihadron production and the confirmation of the American discovery of the J/Psi
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- 2023
4. Coronary Sinus Thrombosis and Post-Myocardial Infarction Syndrome in Kawasaki Disease Rare Causes of Pericardial Effusion
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Wang, Hao, Pancheri, Joan M, Appleton, Robert S, Tremoulet, Adriana H, Burns, Jane C, and Dummer, Kirsten B
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Epidemiology ,Health Sciences ,Heart Disease ,Autoimmune Disease ,Cardiovascular ,Heart Disease - Coronary Heart Disease ,Hematology ,Rare Diseases ,Dressler syndrome ,Kawasaki disease ,coronary sinus thrombosis ,pericardial effusion ,post-myocardial infarction syndrome - Abstract
The hypercoagulable state in Kawasaki disease (KD) may lead to complex cardiovascular sequelae. We present the case of a 2-month-old infant with complete KD complicated by giant coronary artery aneurysms, coronary sinus thrombosis, and post-myocardial infarction syndrome (Dressler syndrome), resulting in 2 distinct episodes of pericardial effusion. (Level of Difficulty: Intermediate.).
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- 2023
5. Subgroups of children with Kawasaki disease: a data-driven cluster analysis.
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Wang, Hao, Shimizu, Chisato, Bainto, Emelia, Hamilton, Shea, Jackson, Heather, Estrada-Rivadeneyra, Diego, Kaforou, Myrsini, Levin, Michael, Pancheri, Joan, Dummer, Kirsten, Tremoulet, Adriana, and Burns, Jane
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United States ,Humans ,Child ,Mucocutaneous Lymph Node Syndrome ,Immunoglobulins ,Intravenous ,Proteomics ,Cluster Analysis ,Aneurysm - Abstract
BACKGROUND: Although Kawasaki disease is commonly regarded as a single disease entity, variability in clinical manifestations and disease outcome has been recognised. We aimed to use a data-driven approach to identify clinical subgroups. METHODS: We analysed clinical data from patients with Kawasaki disease diagnosed at Rady Childrens Hospital (San Diego, CA, USA) between Jan 1, 2002, and June 30, 2022. Patients were grouped by hierarchical clustering on principal components with k-means parcellation based on 14 variables, including age at onset, ten laboratory test results, day of illness at the first intravenous immunoglobulin infusion, and normalised echocardiographic measures of coronary artery diameters at diagnosis. We also analysed the seasonality and Kawasaki disease incidence from 2002 to 2019 by subgroup. To explore the biological underpinnings of identified subgroups, we did differential abundance analysis on proteomic data of 6481 proteins from 32 patients with Kawasaki disease and 24 healthy children, using linear regression models that controlled for age and sex. FINDINGS: Among 1016 patients with complete data in the final analysis, four subgroups were identified with distinct clinical features: (1) hepatobiliary involvement with elevated alanine transaminase, gamma-glutamyl transferase, and total bilirubin levels, lowest coronary artery aneurysm but highest intravenous immunoglobulin resistance rates (n=157); (2) highest band neutrophil count and Kawasaki disease shock rate (n=231); (3) cervical lymphadenopathy with high markers of inflammation (erythrocyte sedimentation rate, C-reactive protein, white blood cell, and platelet counts) and lowest age-adjusted haemoglobin Z scores (n=315); and (4) young age at onset with highest coronary artery aneurysm but lowest intravenous immunoglobulin resistance rates (n=313). The subgroups had distinct seasonal and incidence trajectories. In addition, the subgroups shared 211 differential abundance proteins while many proteins were unique to a subgroup. INTERPRETATION: Our data-driven analysis provides insight into the heterogeneity of Kawasaki disease, and supports the existence of distinct subgroups with important implications for clinical management and research design and interpretation. FUNDING: US National Institutes of Health and the Irving and Francine Suknow Foundation.
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- 2023
6. Design of a spider-inspired wheeled compliant leg for search mobile robots
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Yilin Wang, Felix Pancheri, Tim C. Lueth, and Yilun Sun
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Compliant leg ,Semi-tendon-driven mechanism ,Biomimetic design ,Search mobile robot ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
Earthquake and other disasters nowadays still threat people’s lives and property due to their destructiveness and unpredictability. The past decades have seen the booming development of search and rescue robots due to their potential for increasing rescue capacity as well as reducing personnel safety risk at disaster sites. In this work, we propose a spider-inspired wheeled compliant leg to further improve the environmental adaptability of search mobile robots. Different from the traditional fully-actuated method with independent motor joint control, this leg employs an under-actuated compliant mechanism design with overall semi-tendon-driven control, which enables the passive and active terrain adaptation, system simplification and lightweight of the realized search robot. We have generalized the theoretical model and design methodology for this type of compliant leg, and implement it in a parametric program to improve the design efficiency. In addition, preliminary load capacity and leg-lifting experiments are carried out on a one-leg prototype to evaluate its mechanical performance. A four-legged robot platform is also fabricated for the locomotion tests. The preliminary experimental results have verified the feasibility of the proposed design methodology, and also show possibilities for improvements. In future work, structural optimization and stronger actuation elements should be introduced to further improve the mechanical performance of the fabricated wheeled leg mechanism and robot platform.
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- 2024
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7. High-Precision 4D Tracking with Large Pixels using Thin Resistive Silicon Detectors
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Arcidiacono, R., Borghi, G., Boscardin, M., Cartiglia, N., Vignali, M. Centis, Costa, M., Betta, G-F. Dalla, Ferrero, M., Ficorella, F., Gioachin, G., Lanteri, L., Mandurrino, M., Menzio, L., Mulargia, R., Pancheri, L., Paternoster, G., Rojas, A., Sadrozinski, H-F W., Seiden, A., Siviero, F., Sola, V., and Tornago, M.
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
The basic principle of operation of silicon sensors with resistive read-out is built-in charge sharing. Resistive Silicon Detectors (RSD, also known as AC-LGAD), exploiting the signals seen on the electrodes surrounding the impact point, achieve excellent space and time resolutions even with very large pixels. In this paper, a TCT system using a 1064 nm picosecond laser is used to characterize sensors from the second RSD production at the Fondazione Bruno Kessler. The paper first introduces the parametrization of the errors in the determination of the position and time coordinates in RSD, then outlines the reconstruction method, and finally presents the results. Three different pixel sizes are used in the analysis: 200 x 340, 450 x 450, and 1300 x 1300 microns^2. At gain = 30, the 450 x 450 microns^2 pixel achieves a time jitter of 20 ps and a spatial resolution of 15 microns concurrently, while the 1300 x 1300 microns^2 pixel achieves 30 ps and 30 micron, respectively. The implementation of cross-shaped electrodes improves considerably the response uniformity over the pixel surface., Comment: 28 pages, 23 figures submitted to NIMA
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- 2022
8. Beam test results of 25 $\mu$m and 35 $\mu$m thick FBK UFSD]{Beam test results of 25 $\mu$m and 35 $\mu$m thick FBK ultra fast silicon detectors
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Carnesecchi, F., Strazzi, S., Alici, A., Arcidiacono, R., Borghi, G., Boscardin, M., Cartiglia, N., Vignali, M. Centis, Cavazza, D., Betta, G. -F. Dalla, Durando, S., Ferrero, M., Ficorella, F., Ali, O. Hammad, Mandurrino, M., Margotti, A., Menzio, L., Nania, R., Pancheri, L., Paternoster, G., Scioli, G., Siviero, F., Sola, V., Tornago, M., and Vignola, G.
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Physics - Instrumentation and Detectors - Abstract
This paper presents the measurements on first very thin Ultra Fast Silicon Detectors (UFSDs) produced by Fondazione Bruno Kessler; the data have been collected in a beam test setup at the CERN PS, using beam with a momentum of 12 GeV/c. UFSDs with a nominal thickness of 25 $\mu$m and 35 $\mu$m and an area of 1 $\times$ 1 $\text{mm}^2$ have been considered, together with an additional HPK 50-$\mu$m thick sensor, taken as reference. Their timing performances have been studied as a function of the applied voltage and gain. A time resolution of about 25 ps and of 22 ps at a voltage of 120 V and 240 V has been obtained for the 25 and 35 $\mu$m thick UFSDs, respectively.
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- 2022
9. DC-coupled resistive silicon detectors for 4-D tracking
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Menzio, L., Arcidiacono, R., Borghi, G., Boscardin, M., Cartiglia, N., Vignali, M. Centis, Costa, M., Betta, G-F. Dalla, Ferrero, M., Ficorella, F., Gioachin, G., Mandurrino, M., Pancheri, L., Paternoster, G., Siviero, F., Sola, V., and Tornago, M.
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment ,Physics - Computational Physics - Abstract
In this work, we introduce a new design concept: the DC-Coupled Resistive Silicon Detectors, based on the LGAD technology. This new approach intends to address a few known features of the first generation of AC-Coupled Resistive Silicon Detectors (RSD). Our simulation exploits a fast hybrid approach based on a combination of two packages, Weightfield2 and LTSpice. It demonstrates that the key features of the RSD design are maintained, yielding excellent timing and spatial resolutions: a few tens of ps and a few microns. In the presentation, we will outline the optimization methodology and the results of the simulation. We will present detailed studies on the effect of changing the ratio between the n+ layer resistivity and the low-resistivity ring and on the achievable temporal and spatial resolution.
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- 2022
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10. Tuning of gain layer doping concentration and Carbon implantation effect on deep gain layer
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Mazza, S. M., Gee, C., Zhao, Y., Padilla, R., Ryan, E., Tournebise, N., Darby, B., McKinney-Martinez, F., Sadrozinski, H. F. -W., Seiden, A., Schumm, B., Cindro, V., Kramberger, G., Mandić, I., Mikuž, M., Zavrtanik, M., Arcidiacono, R., Cartiglia, N., Ferrero, M., Mandurrino, M., Sola, V., Staiano, A., Boscardin, M., Della Betta, G. F., Ficorella, F., Pancheri, L., and Paternoster, G.
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
Next generation Low Gain Avalanche Diodes (LGAD) produced by Hamamatsu photonics (HPK) and Fondazione Bruno Kessler (FBK) were tested before and after irradiation with ~1MeV neutrons at the JSI facility in Ljubljana. Sensors were irradiated to a maximum 1-MeV equivalent fluence of 2.5E15 Neq/cm2. The sensors analysed in this paper are an improvement after the lessons learned from previous FBK and HPK productions that were already reported in precedent papers. The gain layer of HPK sensors was fine-tuned to optimize the performance before and after irradiation. FBK sensors instead combined the benefit of Carbon infusion and deep gain layer to further the radiation hardness of the sensors and reduced the bulk thickness to enhance the timing resolution. The sensor performance was measured in charge collection studies using \b{eta}-particles from a 90Sr source and in capacitance-voltage scans (C-V) to determine the bias to deplete the gain layer. The collected charge and the timing resolution were measured as a function of bias voltage at -30C. Finally a correlation is shown between the bias voltage to deplete the gain layer and the bias voltage needed to reach a certain amount of gain in the sensor. HPK sensors showed a better performance before irradiation while maintaining the radiation hardness of the previous production. FBK sensors showed exceptional radiation hardness allowing a collected charge up to 10 fC and a time resolution of 40 ps at the maximum fluence., Comment: arXiv admin note: text overlap with arXiv:2004.05260
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- 2022
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11. Optimization of the Gain Layer Design of Ultra-Fast Silicon Detectors
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Siviero, Federico, Arcidiacono, Roberta, Borghi, Giacomo, Boscardin, Maurizio, Cartiglia, Nicolo, Vignali, Matteo Centis, Costa, Marco, Betta, Gian Franco Dalla, Ferrero, Marco, Ficorella, Francesco, Gioachin, Giulia, Mandurrino, Marco, Mazza, Simone, Menzio, Luca, Pancheri, Lucio, Paternoster, Giovanni, Sadrozinski, Hartmut F. W., Seiden, Abraham, Sola, Valentina, and Tornago, Marta
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
In the past few years, the need of measuring accurately the spatial and temporal coordinates of the particles generated in high-energy physics experiments has spurred a strong R\&D in the field of silicon sensors. Within these research activities, the so-called Ultra-Fast Silicon Detectors (UFSDs), silicon sensors optimized for timing based on the Low-Gain Avalanche Diode (LGAD) design, have been proposed and adopted by the CMS and ATLAS collaborations for their respective timing layers. The defining feature of the Ultra-Fast Silicon Detectors (UFSDs) is the internal multiplication mechanism, determined by the gain layer design. In this paper, the performances of several types of gain layers, measured with a telescope instrumented with a $^{90}$Sr $\beta$-source, are reported and compared. The measured sensors are produced by Fondazione Bruno Kessler (FBK) and Hamamatsu Photonics (HPK). The sensor yielding the best performance, both when new and irradiated, is an FBK 45\mum-thick sensor with a carbonated deep gain implant, where the carbon and the boron implants are annealed concurrently with a low thermal load. This sensor is able to achieve a time resolution of 40~ps up to a radiation fluence of~\fluence{2.5}{15}, delivering at least 5~fC of charge., Comment: v3 revised version as requested by Editor
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- 2021
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12. Core competencies in palliative care among oncology nurses: An observational study
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Elisa Abbadini, Ilaria Basile, Francesco Abbadini, Maria Luisa Pancheri, and Letteria Consolo
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Palliative care ,Professional Competence ,Nursing Care ,Self-Assessment ,Nurses ,Nursing ,RT1-120 - Abstract
BACKGROUND: Palliative care requires a collaborative approach from a multidisciplinary team, incorporating nurses with ethical, clinical, communicative-relational, psychosocial, and teamwork skills. However, many professionals feel unprepared to face end-of-life challenges, highlighting a lack of skills, especially regarding psychosocial and spiritual aspects. AIM: The purpose of this study is to explore nurses' self-perception of competencies in palliative care. METHODS: A single-center descriptive observational study was conducted among palliative and non-palliative care nurses at the Fondazione IRCCS Istituto Nazionale dei Tumori in Milan (INT), using the short Italian version of the Professional Competence Scale (PCSQ). The Kruskal-Wallis test was used along with multivariate ANOVA for statistical analysis. RESULTS: 122 nurses participated (response rate: 52%), predominantly women (78%), aged 25-34 (50%), with a degree (46%) and over 10 years of experience (41%). The majority had no experience (71%) in palliative care, while 16% were currently working in this field. Statistical analysis revealed no significant correlations between educational level and responses. The Kruskal-Wallis test showed that experience in palliative care significantly influenced self-assessment scores, such as in activating non-pharmacological management strategies (p=0.004). CONCLUSIONS: Nurses perceive high competence in ethical and clinical decision-making in palliative care, influenced more by experience than by training. Addressing patients' subjective needs and using non-pharmacological interventions remain a challenge for nurses not working in palliative care settings.
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- 2024
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13. Tolerability of vortioxetine compared to selective serotonin reuptake inhibitors in older adults with major depressive disorder (VESPA): a randomised, assessor-blinded and statistician-blinded, multicentre, superiority trialResearch in context
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Giovanni Ostuzzi, Chiara Gastaldon, Mauro Tettamanti, Massimo Cartabia, Igor Monti, Andrea Aguglia, Eugenio Aguglia, Francesco Bartoli, Camilla Callegari, Andrea Canozzi, Elvira Anna Carbone, Giuseppe Carrà, Rosangela Caruso, Simone Cavallotti, Stefania Chiappini, Fabrizio Colasante, Beatrice Compri, Armando D'Agostino, Pasquale De Fazio, Renato de Filippis, Matteo Gari, Marta Ielmini, Gianmarco Ingrosso, Silvia Mammarella, Giovanni Martinotti, Alessandro Rodolico, Rita Roncone, Enrico Sterzi, Lorenzo Tarsitani, Elisa Tiberto, Liliana Todini, Francesco Amaddeo, Barbara D'Avanzo, Angelo Barbato, Corrado Barbui, Maria Chiara Alessi, Gabriele Avincola, Bianca Bachi, Gianna Bernasconi, Andrea Birgillito, Emanuele Bisso, Stefano Bonora, Angela Calabrese, Tommaso Callovini, Aurelia Canestro, Salvo Canonico, Chiara Alessandro Capogrosso, Elvira Carbone, Doriana Carosielli, Ivano Caselli, Daniele Cavaleri, Clara Cavallotto, Marco Cesca, Cecilia Chiarenza, Riccardo Matteo Cioni, Sara Coloccini, Marco Cruciata, Claudia Cumerlato, Renato De Filippis, Manuela De Palma, Sasha Del Vecchio, Bianca Della Rocca, Chiara Di Natale, Ettore D'Onofrio, Irene Espa, Giulia Fior, Marta Gancitano, Barbara Giordano, Laura Giusti, Luigi Grassi, Pierluca Guzzi, Celeste Isella, Annamaria Lax, Leonardo Marano, Federico Marconi, Marco Marella, Alessia Metelli, Giulia Michencig, Andrea Miuli, Alessandro Moncada, Pietro Morello, Federico Moretti, Marco Morreale, Alessio Mosca, Christian Nasti, Michela Nosé, Filippo Ogheri, Margherita Oresti, Alessandra Ornaghi, Dario Palpella, Corinna Pancheri, Davide Papola, Silvia Passeri, Mauro Pettorusso, Susanna Piacenti, Irene Pinucci, Valentina Pugliese, Marianna Purgato, Marianna Rania, Federica Robbi, Samantha Romito, Barbara Ronchi, Valentina Roselli, Cristina Segura-Garcia, Maria Salvina Signorelli, Gabriele Simonelli, Antonella Sociali, Serena Sturiale, Antonio Tambelli, Beatrice Todesco, Alice Trabucco, Giulia Turrini, Veronica Villa, Federico Wiedenmann, Luca Zambuto, Elisa Zanini, Chiara Zannini, and Luigi Zerbinati
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Older adults ,Major depressive disorder ,Vortioxetine ,Serotonin selective reuptake inhibitors ,Tolerability ,Adverse events ,Medicine (General) ,R5-920 - Abstract
Summary: Background: Major depressive disorder (MDD) is prevalent and disabling among older adults. Standing on its tolerability profile, vortioxetine might be a promising alternative to selective serotonin reuptake inhibitors (SSRIs) in such a vulnerable population. Methods: We conducted a randomised, assessor- and statistician-blinded, superiority trial including older adults with MDD. The study was conducted between 02/02/2019 and 02/22/2023 in 11 Italian Psychiatric Services. Participants were randomised to vortioxetine or one of the SSRIs, selected according to common practice. Treatment discontinuation due to adverse events after six months was the primary outcome, for which we aimed to detect a 12% difference in favour of vortioxetine. The study was registered in the online repository clinicaltrials.gov (NCT03779789). Findings: The intention-to-treat population included 179 individuals randomised to vortioxetine and 178 to SSRIs. Mean age was 73.7 years (standard deviation 6.1), and 264 participants (69%) were female. Of those on vortioxetine, 78 (44%) discontinued the treatment due to adverse events at six months, compared to 59 (33%) of those on SSRIs (odds ratio 1.56; 95% confidence interval 1.01–2.39). Adjusted and per-protocol analyses confirmed point estimates in favour of SSRIs, but without a significant difference. With the exception of the unadjusted survival analysis showing SSRIs to outperform vortioxetine, secondary outcomes provided results consistent with a lack of substantial safety and tolerability differences between the two arms. Overall, no significant differences emerged in terms of response rates, depressive symptoms and quality of life, while SSRIs outperformed vortioxetine in terms of cognitive performance. Interpretation: As opposed to what was previously hypothesised, vortioxetine did not show a better tolerability profile compared to SSRIs in older adults with MDD in this study. Additionally, hypothetical advantages of vortioxetine on depression-related cognitive symptoms might be questioned. The study's statistical power and highly pragmatic design allow for generalisability to real-world practice. Funding: The study was funded by the Italian Medicines Agency within the “2016 Call for Independent Drug Research”.
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- 2024
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14. Design of topology optimized compliant legs for bio-inspired quadruped robots
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Sun, Yilun, Zong, Chujun, Pancheri, Felix, Chen, Tong, and Lueth, Tim C.
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- 2023
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15. Innovative Detection of Biomarkers Based on Chemiluminescent Nanoparticles and a Lensless Optical Sensor
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Cristina Potrich, Gianluca Palmara, Francesca Frascella, Lucio Pancheri, and Lorenzo Lunelli
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chemiluminescent detection ,lensless biosensor ,lateral flow test ,antibody-functionalized nanoparticles ,Biotechnology ,TP248.13-248.65 - Abstract
The identification and quantification of biomarkers with innovative technologies is an urgent need for the precise diagnosis and follow up of human diseases. Body fluids offer a variety of informative biomarkers, which are traditionally measured with time-consuming and expensive methods. In this context, lateral flow tests (LFTs) represent a rapid and low-cost technology with a sensitivity that is potentially improvable by chemiluminescence biosensing. Here, an LFT based on gold nanoparticles functionalized with antibodies labeled with the enzyme horseradish peroxidase is combined with a lensless biosensor. This biosensor comprises four Silicon Photomultipliers (SiPM) coupled in close proximity to the LFT strip. Microfluidics for liquid handling complete the system. The development and the setup of the biosensor is carefully described and characterized. C-reactive protein was selected as a proof-of-concept biomarker to define the limit of detection, which resulted in about 0.8 pM when gold nanoparticles were used. The rapid readout (less than 5 min) and the absence of sample preparation make this biosensor promising for the direct and fast detection of human biomarkers.
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- 2024
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16. Coronary Sinus Thrombosis and Post-Myocardial Infarction Syndrome in Kawasaki Disease
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Hao Wang, MD, MS, Joan M. Pancheri, BSN, Robert S. Appleton, MD, Adriana H. Tremoulet, MD, MAS, Jane C. Burns, MD, and Kirsten B. Dummer, MD
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coronary sinus thrombosis ,Dressler syndrome ,Kawasaki disease ,pericardial effusion ,post-myocardial infarction syndrome ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
The hypercoagulable state in Kawasaki disease (KD) may lead to complex cardiovascular sequelae. We present the case of a 2-month-old infant with complete KD complicated by giant coronary artery aneurysms, coronary sinus thrombosis, and post-myocardial infarction syndrome (Dressler syndrome), resulting in 2 distinct episodes of pericardial effusion. (Level of Difficulty: Intermediate.)
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- 2023
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17. Design of topology optimized compliant legs for bio-inspired quadruped robots
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Yilun Sun, Chujun Zong, Felix Pancheri, Tong Chen, and Tim C. Lueth
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Medicine ,Science - Abstract
Abstract Robotic legs are an important component of the quadruped robot for achieving different motion gaits. Although the conventional rigid-link-based legs can generally perform robust motions, they still have the issues with poor sealing when operating in complex and liquid terrains. To cope with this problem, fully compliant legs with monolithic structure have been introduced in recent years to improve the system compactness and structural compliance of quadruped robots. In this article, we present a topology-optimization-based method to achieve efficient design of compliant robotic legs. In order to balance the structural stiffness and bending flexibility of the realized leg, a multi-objective optimization algorithm is utilized. A series of design cases are presented to illustrate the design principle and analytical procedure of the proposed method. In addition, experimental evaluation is also performed, and the results have demonstrated that, a quadruped robot with the optimized legs can successfully achieve stable and continuous straight-line walking motions.
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- 2023
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18. Demonstrating the high sensitivity of MoS2 monolayers in direct x-ray detectors
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Alberto Taffelli, Max Heyl, Matteo Favaro, Sandra Dirè, Lucio Pancheri, Emil J. W. List-Kratochvil, Alberto Quaranta, and Giovanni Ligorio
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Biotechnology ,TP248.13-248.65 ,Physics ,QC1-999 - Abstract
Two-dimensional transition metal dichalcogenides (TMDCs) are demonstrated to be appealing semiconductors for optoelectronic applications, thanks to their remarkable properties in the ultraviolet-visible spectral range. Interestingly, TMDCs have not yet been characterized when exposed to x rays, although they would be ideal candidates for optoelectronic applications in this spectral range. They benefit from the high cross section of the constituent heavy atoms, while keeping the absorption very low, due to the ultrathin structure of the film. This encourages the development of photodetectors based on TMDCs for several applications dealing with x rays, such as radioprotection, medical treatments, and diagnosis. Given the atomic thickness of TMDCs, they can be expected to perform well at low dose measurements with minimal perturbation of the radiation beam, which is required for in vivo applications. In this paper, the use of TMDCs as active materials for direct x-ray detection is demonstrated, using a photodetector based on a MoS2 monolayer (1L-MoS2). The detector shows a response to x rays in the range of 101–102 keV, at dose rates as low as fractions of mGy/s. The sensitivity of 1L-MoS2 reaches values in the range of 108–109 µC Gy−1 cm−3, overcoming the values reported for most of the organic and inorganic materials. To improve the x-ray photoresponse even further, the 1L-MoS2 was coupled with a polymeric film integrating a scintillator based on terbium-doped gadolinium oxysulfide (Gd2O2S:Tb). The resulting signal was three times larger, enabled by the indirect x ray to visible photoconversion mechanism. This paper might pave the way toward the production of ultrathin real-time dosimeters for in vivo applications.
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- 2023
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19. Preliminary Characterization of an Active CMOS Pad Detector for Tracking and Dosimetry in HDR Brachytherapy
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Thi Ngoc Hang Bui, Matthew Large, Joel Poder, Joseph Bucci, Edoardo Bianco, Raffaele Aaron Giampaolo, Angelo Rivetti, Manuel Da Rocha Rolo, Zeljko Pastuovic, Thomas Corradino, Lucio Pancheri, and Marco Petasecca
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brachytherapy ,CMOS ,source tracking ,active pixel ,dosimetry ,IBIC ,Chemical technology ,TP1-1185 - Abstract
We assessed the accuracy of a prototype radiation detector with a built in CMOS amplifier for use in dosimetry for high dose rate brachytherapy. The detectors were fabricated on two substrates of epitaxial high resistivity silicon. The radiation detection performance of prototypes has been tested by ion beam induced charge (IBIC) microscopy using a 5.5 MeV alpha particle microbeam. We also carried out the HDR Ir-192 radiation source tracking at different depths and angular dose dependence in a water equivalent phantom. The detectors show sensitivities spanning from (5.8 ± 0.021) × 10−8 to (3.6 ± 0.14) × 10−8 nC Gy−1 mCi−1 mm−2. The depth variation of the dose is within 5% with that calculated by TG-43. Higher discrepancies are recorded for 2 mm and 7 mm depths due to the scattering of secondary particles and the perturbation of the radiation field induced in the ceramic/golden package. Dwell positions and dwell time are reconstructed within ±1 mm and 20 ms, respectively. The prototype detectors provide an unprecedented sensitivity thanks to its monolithic amplification stage. Future investigation of this technology will include the optimisation of the packaging technique.
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- 2024
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20. Aberrant Cerebello-Cerebral Connectivity in Remitted Bipolar Patients 1 and 2: New Insight into Understanding the Cerebellar Role in Mania and Hypomania
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Olivito, Giusy, Lupo, Michela, Gragnani, Andrea, Saettoni, Marco, Siciliano, Libera, Pancheri, Corinna, Panfili, Matteo, Cercignani, Mara, Bozzali, Marco, Chiaie, Roberto Delle, and Leggio, Maria
- Published
- 2022
- Full Text
- View/download PDF
21. Selection of 8-channel silicon phototransistor arrays for space applications, based on wafer-level radiation and high-temperature storage tests
- Author
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Eshkevar Vakili, Aref, Bregoli, Matteo, Ceriani, Silvia, Bassetti, Daniel, Ficorella, Francesco, Pancheri, Lucio, and Bringer, Charlotte
- Published
- 2022
- Full Text
- View/download PDF
22. Beam test results of 25 and 35 μm thick FBK ultra-fast silicon detectors
- Author
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Carnesecchi, F., Strazzi, S., Alici, A., Arcidiacono, R., Borghi, G., Boscardin, M., Cartiglia, N., Centis Vignali, M., Cavazza, D., Dalla Betta, G. -F., Durando, S., Ferrero, M., Ficorella, F., Ali, O. Hammad, Mandurrino, M., Margotti, A., Menzio, L., Nania, R., Pancheri, L., Paternoster, G., Scioli, G., Siviero, F., Sola, V., Tornago, M., and Vignola, G.
- Published
- 2023
- Full Text
- View/download PDF
23. Regulators of collagen crosslinking in developing and adult tendons
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AJ Ellingson, NM Pancheri, and NR Schiele
- Subjects
tendon ,development ,collagen ,crosslinking ,advanced glycation end products (ages) ,lysyl oxidase (lox) ,Diseases of the musculoskeletal system ,RC925-935 ,Orthopedic surgery ,RD701-811 - Abstract
Tendons are collagen-rich musculoskeletal tissues that possess the mechanical strength needed to transfer forces between muscles and bones. The mechanical development and function of tendons are impacted by collagen crosslinks. However, there is a limited understanding of how collagen crosslinking is regulated in tendon during development and aging. Therefore, the objective of the present review was to highlight potential regulators of enzymatic and non-enzymatic collagen crosslinking and how they impact tendon function. The main collagen crosslinking enzymes include lysyl oxidase (LOX) and the lysyl oxidase-like isoforms (LOXL), whereas non-enzymatic crosslinking is mainly mediated by the formation of advanced glycation end products (AGEs). Regulators of the LOX and LOXL enzymes may include mechanical stimuli, mechanotransducive cell signaling pathways, sex hormones, transforming growth factor (TGF)β family, hypoxia, and interactions with intracellular or extracellular proteins. AGE accumulation in tendon is due to diabetic conditions and aging, and can be mediated by diet and mechanical stimuli. The formation of these enzymatic and non-enzymatic collagen crosslinks plays a major role in tendon biomechanics and in the mechanisms of force transfer. A more complete understanding of how enzymatic and non-enzymatic collagen crosslinking is regulated in tendon will better inform tissue engineering and regenerative therapies aimed at restoring the mechanical function of damaged tendons.
- Published
- 2022
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- View/download PDF
24. Time-Resolved Fluorescence Spectroscopy of Molecularly Imprinted Nanoprobes as an Ultralow Detection Nanosensing Tool for Protein Contaminants
- Author
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Alessandra Maria Bossi, Alice Marinangeli, Alberto Quaranta, Lucio Pancheri, and Devid Maniglio
- Subjects
lifetime decay ,molecularly imprinted polymers ,time resolved fluorescence spectroscopy ,nanosensor ,wine ,optical sensor ,Biotechnology ,TP248.13-248.65 - Abstract
Currently, optical sensors based on molecularly imprinted polymers (MIPs) have been attracting significant interest. MIP sensing relies on the combination of the MIP’s selective capability, which is conveyed to the polymeric material by a template-assisted synthesis, with optical techniques that offer exquisite sensitivity. In this work, we devised an MIP nanoparticle optical sensor for the ultralow detection of serum albumin through time-resolved fluorescence spectroscopy. The Fluo-nanoMIPs (∅~120 nm) were synthetized using fluorescein-O-methacrylate (0.1×, 1×, 10× mol:mol versus template) as an organic fluorescent reporter. The ability of 0.1× and 1×Fluo-nanoMIPs to bind albumin (15 fM–150 nM) was confirmed by fluorescence intensity analyses and isothermal titration calorimetry. The apparent dissociation constant (Kapp) was 30 pM. Conversely, the 10× fluorophore content did not enable monitoring binding. Then, the time-resolved fluorescence spectroscopy of the nanosensors was studied. The 1×Fluo-nanoMIPs showed a decrease in fluorescence lifetime upon binding to albumin (100 fM–150 nM), Kapp = 28 pM, linear dynamic range 3.0–83.5 pM, limit of detection (LOD) 1.26 pM. Selectivity was confirmed testing 1×Fluo-nanoMIPs against competitor proteins. Finally, as a proof of concept, the nanosensors demonstrated detection of the albumin (1.5 nM) spiked in wine samples, suggesting a possible scaling up of the method in monitoring allergens in wines.
- Published
- 2023
- Full Text
- View/download PDF
25. Electronic Patient Reported Outcomes Measures (e-PROMs) in Pediatric Palliative Oncology Care: A Scoping Review
- Author
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Rusconi, Daniele, Basile, Ilaria, Rampichini, Flavia, Colombo, Stella, Arba, Laura, Pancheri, Maria Luisa, Consolo, Letteria, and Lusignani, Maura
- Abstract
Objective:Research findings regarding child-centered care and electronic patient reported outcome measures (e-PROMs) within pediatric palliative oncology care reveal an intricate field of study. This study aimed to map innovations in e-PROMs for the pediatric cancer population in palliative care and their impact on symptom management, and communication with healthcare professionals. Methods:A scoping review was designed following the Arksey and O’Malley framework. Literature searches were conducted in CINAHL, Embase, MEDLINE, PsycINFO, SCOPUS, and Web of Science. Inclusion criteria targeted children aged 0–18 years with cancer, receiving palliative and/or end-of-life care, and using e-PROMs. Results:Twelve articles were included: 10 quantitative studies, one qualitative study, and one mixed-method study. A narrative synthesis approach was used to summarize the findings, categorized into three sections: (a) technological innovation of e-PROMs in pediatric palliative oncology care; (b) the impact of e-PROMs on symptom monitoring, management, and children's care; (c) the effects of e-PROMs on communication between children and healthcare professionals in pediatric palliative oncology care. Conclusion:e-PROMs have proven effective in empowering children to express their perspectives and actively engage in their end-of-life care. Due to flexible software and devices designed for various age groups, these tools fit seamlessly into children's daily routines and preferences, including the use of play-oriented applications. They facilitate a deeper understanding, and management of physical and emotional symptoms while ensuring care remains child-centered. This emphasizes the importance of preserving the essence of childhood and addressing the unique needs and experiences of young patients in pediatric palliative oncology care.
- Published
- 2024
- Full Text
- View/download PDF
26. Theory of mind profile and cerebellar alterations in remitted bipolar disorder 1 and 2: a comparison study
- Author
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Giusy Olivito, Michela Lupo, Libera Siciliano, Andrea Gragnani, Marco Saettoni, Corinna Pancheri, Matteo Panfili, Fabiana Pignatelli, Roberto Delle Chiaie, and Maria Leggio
- Subjects
social cognition ,mentalizing ,emotion ,voxel-based morphometry ,gray matter ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
The literature on social cognition abilities in bipolar disorder (BD) is controversial about the occurrence of theory of mind (ToM) alterations. In addition to other cerebral structures, such as the frontal and limbic areas, the processing of socially relevant stimuli has also been attributed to the cerebellum, which has been demonstrated to be involved in the above-mentioned disorder. Nevertheless, the cerebellar contribution to ToM deficits in bipolar patients needs to be elucidated further. To this aim, two tests assessing different components of ToM were used to evaluate the ability to appreciate affective and mental states of others in 17 individuals with a diagnosis of BD type 1 (BD1) and 13 with BD type 2 (BD2), both in the euthymic phase, compared to healthy matched controls. Cerebellar gray matter (GM) volumes were extracted and compared between BD1 and controls and BD2 and controls by using voxel-based morphometry. The results showed that BD1 patients were compromised in the cognitive and advanced components of ToM, while the BD2 ToM profile resulted in a more widespread compromise, also involving affective and automatic components. Both overlapping and differing areas of cerebellar GM reduction were found. The two groups of patients presented a pattern of GM reduction in cerebellar portions that are known to be involved in the affective and social domains, such as the vermis and Crus I and Crus II. Interestingly, in both BD1 and BD2, positive correlations were detected between lower ToM scores and decreased volumes in the cerebellum. Overall, BD2 patients showed a more compromised ToM profile and greater cerebellar impairment than BD1 patients. The different patterns of structural abnormalities may account for the different ToM performances evidenced, thus leading to divergent profiles between BD1 and BD2.
- Published
- 2022
- Full Text
- View/download PDF
27. Charge Collection Dynamics of the ARCADIA Passive Pixel Arrays: Laser Characterization and TCAD Modeling
- Author
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Thomas Corradino, G.-F. Dalla Betta, C. Neubüser, and L. Pancheri
- Subjects
MAPS ,CMOS ,silicon radiation detectors ,laser characterization ,TCAD simulation ,Physics ,QC1-999 - Abstract
Monolithic Active Pixel Sensors (MAPS) represent one of the most promising technologies for the next generation of radiation detectors. The ARCADIA project aims at the development of Fully Depleted (FD) MAPS employing a production process compatible with a 110 nm commercial CMOS technology. The first engineering run of the project included matrices of active pixels with embedded analog and digital frontend electronics and passive test structures such as passive pixel arrays, MOS capacitors and backside diodes. Although the produced samples were already characterized from the electrical point of view, a thorough study of the charge collection dynamics of the passive pixel arrays was still missing. In this paper we show the results of the dynamic characterization of a group of passive pixel arrays with different pixel pitches (50, 25 and 10 μm) and different pixel layouts. The tested samples have been illuminated from the backside with an infrared and a red laser with wavelengths equal to 1,060 nm and 660 nm, respectively. The pixel arrays have been mounted on a custom readout PCB connected to an external amplifier with 1 GHz bandwidth and the signals have been acquired through a fast digital oscilloscope. We employed both focused and unfocused laser spots to evaluate the change in the measured signal as a function of the laser spot position and the average response of the pixel arrays. An excellent agreement has been demonstrated by comparing the measured signals with the results of transient TCAD simulations and a time for 50% charge collection of 7.8, 4.2 and 2.6 ns has been predicted and experimentally validated in pixels with 50, 25 and 10 μm pitch, respectively.
- Published
- 2022
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- View/download PDF
28. Low-cost, open-source cell culture chamber for regulating physiologic oxygen levels
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Colin R.N. Marchus, Jacob A. Knudson, Alexandra E. Morrison, Isabell K. Strawn, Andrew J. Hartman, Dev Shrestha, Nicholas M. Pancheri, Ian Glasgow, and Nathan R. Schiele
- Subjects
Hypoxia ,Stem Cells ,3D printing ,Control System ,Science (General) ,Q1-390 - Abstract
The physiological oxygen levels for several mammalian cell types in vivo are considered to be hypoxic (low oxygen tension), but the vast majority of in vitro mammalian cell culture is conducted at atmospheric oxygen levels of around 21%. In order to understand the impact of low oxygen environments on cells, oxygen levels need to be regulated during in vitro culture. Two common methods for simulating a hypoxic environment are through the regulation of gas composition or chemical induction. Chemically mimicking hypoxia can have adverse effects such as reducing cell viability, making oxygen regulation in cell culture chambers crucial for long-term culture. However, oxygen-regulating cell culture incubators and commercial hypoxia chambers may not always be a viable option due to cost and limited customization. Other low-cost chambers have been developed, but they tend to lack control systems or are fairly small scale. Thus, the objective of this project was to design and develop a low-cost, open-source, controllable, and reproducible hypoxia chamber that can fit inside a standard cell culture incubator. This design allows for the control of O2 between 1 and 21%, while maintaining CO2 levels at 5%, as well as monitoring of temperature, pressure, and relative humidity. Testing showed our hypoxia chamber was able to maintain CO2 levels at 5% and hypoxic O2 levels at 1% and 5% for long-term cell culture. This simple and easy-to-manufacture design uses off the shelf components, and the total material cost was $832.47 (USD).
- Published
- 2022
- Full Text
- View/download PDF
29. Performance comparison of different SiPM arrays coupled to neutron-γ scintillators
- Author
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Delgado Jessica, Pino Felix, Moretto Sandra, Corti Daniele, Griggio Alessandro, Pancheri Lucio, and Fabris Daniela
- Subjects
sipm-arrays ,n/γ discrimination ,neutron detection ,scintillators ,Physics ,QC1-999 - Abstract
The market for SiPMs has grown rapidly in recent years, driven by their increasing use in applications such as medical imaging, nuclear and particle physics. Due to the growing demand, many manufacturers are now offering SiPMs, each of them with unique features and performance characteristics. As a result, it is essential to conduct comparative studies to evaluate and compare the performance of different SiPM arrays. Therefore, this work aims to compare the performance of assembled detectors based on two different SiPM arrays (AdvanSiD-NUV hybrid array ASD-NUV4S-P-4x4TD 17 mm x17 mm and the MPPC Hamamatsu S14161-6050HS-04 25 mm x 25 mm) coupled to two organic scintillators, a liquid scintillator EJ-309 (50 mm diameter x 50 mm thickness) and a plastic scintillator EJ-276G (25 mm diameter x 25 mm thickness). The assessment of the performance was made in terms of their energy resolution, time resolution, and capability to discriminate between γ-rays and fast neutrons. The outcomes show that the Hamamatsu SiPM array performs better for all of the characteristics studied, with the best configuration being when it was coupled to the EJ-309 liquid scintillator, obtaining the lowest energy and time resolutions, (0.108±0.004) and (0.599 ± 0.004) ns respectively, and the highest Figure of Merit (2.04 ± 0.01). A good Figure of Merit value that ensures an effective discrimination between fast neutrons and γ-rays.
- Published
- 2023
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- View/download PDF
30. Use of Heli-Fx guide steerable sheath for transfemoral mono-chimney endografting associated to endoanchors for type IA endoleak correction
- Author
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Stefano Bonvini, Sebastiano Tasselli, Nicola Spadoni, Igor Raunig, Valentina Wassermann, and Flavio Pancheri
- Subjects
Endovascular aneurysm repair ,Chimney endografting ,Transfemoral approach ,Steerable sheath ,Heli-FX guide sheath ,Technique ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 ,Surgery ,RD1-811 - Abstract
Chimney endovascular aneurysm repair (ChEVAR) is an accepted alternative for abdominal aortic aneurysm (AAA) treatment in patients with complex anatomy or urgent cases. In selected high-risk patients, the association with Endoanchors seems attractive and could potentially reduce type IA endoleak rate. Moreover, the transfemoral approach for ChEVAR is a validated option when the transbrachial access is not feasible or contraindicated and recent works have highlighted the use of steerable sheaths as a method to achieve total transfemoral ChEVAR. The study reports two successful secondary procedures for a type IA endoleak treated with a single renal chimney endografting plus Endoanchors. These procedures were performed from the femoral access using Heli-Fx Guide 22 mm steerable sheath (Medtronic, Santa Rosa, CA) associated with a coaxial Flexor Introducer (Cook Medical Inc., Bloomington, IN). Technical steps are accurately underlined to make the procedure reproducible. ChEVAR from femoral arteries with Heli-Fx Guide 22 mm steerable sheath associated with a telescopic 90 cm Flexor seems feasible and safe following some specific technical hints.
- Published
- 2021
- Full Text
- View/download PDF
31. Adhesion State Estimation for Electrostatic Gripper Based on Online Capacitance Measure
- Author
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Ion-Dan Sîrbu, Marco Bolignari, Salvatore D’Avella, Francesco Damiani, Lorenzo Agostini, Paolo Tripicchio, Rocco Vertechy, Lucio Pancheri, and Marco Fontana
- Subjects
capacitance measurement ,electroadhesive grippers ,self-sensing ,Materials of engineering and construction. Mechanics of materials ,TA401-492 ,Production of electric energy or power. Powerplants. Central stations ,TK1001-1841 - Abstract
Electroadhesion is a suitable technology for developing grippers for applications where fragile, compliant or variable shape objects need to be grabbed and where a retention action is typically preferred to a compression force. This article presents a self-sensing technique for electroadhesive devices (EAD) based on the capacitance measure. Specifically, we demonstrate that measuring the variation of the capacitance between electrodes of an EAD during the adhesion can provide useful information to automatically detect the successful grip of an object and the possible loss of adhesion during manipulation. To this aim, a dedicated electronic circuit is developed that is able to measure capacitance variations while the high voltage required for the adhesion is activated. A test bench characterization is presented to evaluate the self-sensing of capacitance during different states: (1) the EAD is far away from the object to be grasped; (2) the EAD is in contact with the object, but the voltage is not active (i.e., no adhesion); and (3) the EAD is activated and attached to the object. Correlation between the applied voltage, object material and shape and capacitance is made. The self-sensing EAD is then demonstrated in a closed-loop robotic application that employs a robot manipulator arm to pick and place objects of different kinds.
- Published
- 2022
- Full Text
- View/download PDF
32. TurBot: A Turtle-Inspired Quadruped Robot Using Topology Optimized Soft-Rigid Hybrid Legs
- Author
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Sun, Yilun, Pancheri, Felix, Rehekampff, Christoph, and Lueth, Tim C.
- Abstract
Quadruped robots are used for a wide variety of transportation and exploration tasks due to their high dexterity. Currently, many studies utilize soft robotic legs to replace rigid-link-based legs, with the aim to improve quadruped robots' adaptability to complex environments. However, the conventional soft legs still face the challenge of limited load-bearing capacity. To cope with this issue, we propose in this work a type of soft-rigid hybrid leg, which is synthesized by using a multistage topology optimization method. A simplified model is also created to describe the kinematics of the synthesized soft leg. Using the realized legs, we have developed a turtle-inspired quadruped robot called TurBot. By mimicking the walking pattern of a turtle, two motion gaits (straight-line walking and turning) are designed to realize the robotic locomotion. Experiments are also conducted to evaluate the walking performance of TurBot. Results show that the realized robot can achieve stable straight-line walking and turning motions. In addition, TurBot can carry up to 500 g extra weight while walking, which is 126% of its own body weight. Moreover, different locomotion tests have also successfully verified TurBot's ability to adapt to complex environments.
- Published
- 2024
- Full Text
- View/download PDF
33. A Community Study of SARS-CoV-2 Detection by RT-PCR in Saliva: A Reliable and Effective Method
- Author
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Filippo Fronza, Nelli Groff, Angela Martinelli, Beatrice Zita Passerini, Nicolò Rensi, Irene Cortelletti, Nicolò Vivori, Valentina Adami, Anna Helander, Simone Bridi, Michael Pancher, Valentina Greco, Sonia Iolanda Garritano, Elena Piffer, Lara Stefani, Veronica De Sanctis, Roberto Bertorelli, Serena Pancheri, Lucia Collini, Erik Dassi, Alessandro Quattrone, Maria Rosaria Capobianchi, Giancarlo Icardi, Guido Poli, Patrizio Caciagli, Antonio Ferro, and Massimo Pizzato
- Subjects
COVID-19 ,saliva testing ,molecular diagnosis ,SARS-CoV-2 detection ,Microbiology ,QR1-502 - Abstract
Efficient, wide-scale testing for SARS-CoV-2 is crucial for monitoring the incidence of the infection in the community. The gold standard for COVID-19 diagnosis is the molecular analysis of epithelial secretions from the upper respiratory system captured by nasopharyngeal (NP) or oropharyngeal swabs. Given the ease of collection, saliva has been proposed as a possible substitute to support testing at the population level. Here, we used a novel saliva collection device designed to favour the safe and correct acquisition of the sample, as well as the processivity of the downstream molecular analysis. We tested 1003 nasopharyngeal swabs and paired saliva samples self-collected by individuals recruited at a public drive-through testing facility. An overall moderate concordance (68%) between the two tests was found, with evidence that neither system can diagnose the infection in 100% of the cases. While the two methods performed equally well in symptomatic individuals, their discordance was mainly restricted to samples from convalescent subjects. The saliva test was at least as effective as NP swabs in asymptomatic individuals recruited for contact tracing. Our study describes a testing strategy of self-collected saliva samples, which is reliable for wide-scale COVID-19 screening in the community and is particularly effective for contact tracing.
- Published
- 2022
- Full Text
- View/download PDF
34. Online Dark Count Rate Measurements in 150 nm CMOS SPADs Exposed to Low Neutron Fluxes
- Author
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Ratti, L., Brogi, P., Collazuol, G., Betta, G. -F. Dalla, Delgado, J. C., Marrocchesi, P. S., MInga, J., Morsani, F., Pancheri, Lucio, Pino, F., Selva, A., Stolzi, F., Torilla, G., and Vacchi, C.
- Abstract
Arrays of single photon avalanche diodes (SPADs) fabricated in a 150 nm CMOS technology have been exposed to neutrons up to fluences of about
$4.3 \times 10^{10}~1$ $^{-2}$ $3 \times 10^{6}~1$ $^{-2}\text{s}^{-1}$ - Published
- 2024
- Full Text
- View/download PDF
35. A comprehensive assessment of the impact of a colorectal cancer screening program in a northern Italian area.
- Author
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Pancheri, Serena, Pertile, Riccardo, Armelao, Franco, Rizzello, Roberto Vito, Piffer, Silvano, Zorzi, Manuel, Guzzinati, Stefano, Ferro, Antonio, Mantovani, William, and de Pretis, Giovanni
- Abstract
The impact of a faecal immunochemical test-based colorectal cancer (CRC) screening program in terms of patient prognosis could be affected by lead-time bias, which artificially increases the survival of screen-detected patients due to the early diagnosis. To provide a description of the impact of the CRC screening program in the Trentino Region (Italy), including the Cure Fraction (CF), a prognostic indicator not affected by lead-time bias. The program started in 2008, inviting the resident population aged 50–69 years. In this retrospective cohort study, 1,697 CRC diagnosed between 2003 and 2014 in patients aged 50–69 years were classified as pre-screening (PS), screen-detected (SD), interval cancers (IC) and not-screen-detected (NSD). We compared groups by stage at diagnosis and CF. Trends in CRC mortality were reported. The proportion of stage I among SD cases was 51%, higher than PS (19%; OR 4.66, 95%CI 3.50–6.20), NSD (20.6%; OR 3.96, 95%CI 2.95–5.32) and IC (33.3%; OR 2.11, 95%CI 1.10–4.04). The CF of PS, NSD and SD cases was respectively 57% (95%CI 54–60%), 60% (95%CI 58–63%) and 93% (95%CI 89–96%). CRC mortality dropped from 40.7 to 25.6\100,000. The program significantly improved the prognosis of patients, decreasing CRC mortality and incidence of advanced CRCs. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
36. EP13.03-02 Improved Long-Term Survival and Less Chemotherapy in Extended-SCLC Patients: A Real-World Study in the Immunotherapy Era
- Author
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Calvetti, L., Sartori, G., Pancheri, F., Simionato, F., Cosci, M., Scarparo, S., Menin, A.G., Posenato, I., Reghellin, D., Tisato, A., Ave, S., and Aprile, G.
- Published
- 2023
- Full Text
- View/download PDF
37. Automated Digitization of Three-Dimensional Structures Using AprilTag and Solid Geometry-Library in matlab
- Author
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Zhang, Dingzhi, Pancheri, Felix, Rehekampff, Christoph, Sun, Yilun, and Lueth, Tim C.
- Abstract
The rapid development of digitization and 3D printing is creating an ever-increasing demand for methods for the automated generation of 3D models from real components. Thanks to the progress and widespread use of computer vision, it is now possible to merge classical engineering tasks with image processing techniques. Computer-aided design can therefore be automated using information from image data. In this study, we present a novel method for automated digitization of 3D structures using AprilTag fiducial system and Solid Geometry Library. The proposed design process is implemented in matlab. AprilTags are used to realize 3D coordinate measurements to digitally capture the 3D dimensions of real components. Based on these data, 3D replica models are generated with the Solid Geometry Library toolbox, which enables the automated design of 3D surface models in matlab. The mathematical background of this procedure is described. The capability of the proposed method is demonstrated on 3D structures composed of components with fixed cross sections and fundamental 3D structures such as prisms, cylinders, and spheres. Further improvements in the coordinate measurement process using AprilTag and further implementation in matlab can extend the functionality for the digitization of more complex 3D structures.
- Published
- 2023
- Full Text
- View/download PDF
38. Anakinra Treatment in Patients with Acute Kawasaki Disease with Coronary Artery Aneurysms: A Phase I/IIa Trial.
- Author
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Yang, Jincheng, Jain, Sonia, Capparelli, Edmund V., Best, Brookie M., Son, Mary Beth, Baker, Annette, Newburger, Jane W., Franco, Alessandra, Printz, Beth F., He, Feng, Shimizu, Chisato, Hoshino, Shinsuke, Bainto, Emelia, Moreno, Elizabeth, Pancheri, Joan, Burns, Jane C., and Tremoulet, Adriana H.
- Abstract
Objectives: To determine the safety, pharmacokinetics, and immunomodulatory effects of 2-6 weeks of anakinra therapy in patients with acute Kawasaki disease with a coronary artery aneurysm (CAA).Study Design: We performed a Phase I/IIa dose-escalation study of anakinra (2-11 mg/kg/day) in 22 patients with acute Kawasaki disease with CAA. We measured interleukin (IL)-1RA concentrations after the first dose and trough levels up to study week 6. Markers of inflammation and coronary artery z-scores were assessed pretreatment and at 48 hours, 2 weeks, and 6 weeks after initiation of therapy.Results: Up to 6 weeks of anakinra (up to 11 mg/kg/day) was safe and well tolerated by the 22 participants (median age, 1.1 years), with no serious adverse events attributable to the study drug. All participants were treated with intravenous immunoglobulin (IVIG), and 20 also received infliximab (10 mg/kg) before initiation of anakinra. Serum levels of IL-6, IL-8, and tumor necrosis factor α decreased similarly in patients with Kawasaki disease treated with IVIG, infliximab, and anakinra compared with age- and sex-matched patients with Kawasaki disease treated only with IVIG and infliximab. Anakinra clearance increased with illness day at diagnosis. Simulations demonstrated that more frequent intravenous (IV) dosing may result in more sustained concentrations without significantly increasing the peak concentration compared with subcutaneous (SC) dosing.Conclusions: Both IV and SC anakinra are safe in infants and children with acute Kawasaki disease and CAA. IV dosing every 8-12 hours during the acute hospitalization of patients with Kawasaki disease may result in a sustained concentration while avoiding frequent SC injections. The efficacy of a short course of IV therapy during hospitalization should be studied. TRIAL REGISTRATION CLINICALTRIALS.GOV: NCT02179853. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
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