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1,109 results on '"Zucchi, P"'

10. Consensus-driven protocol for transanal irrigation in patients with low anterior resection syndrome and functional constipation

Author

Martellucci, J., Falletto, E., Ascanelli, S., Bondurri, A., Borin, S., Bottini, C., Caproli, E., Carrera, M., Cestaro, G., Chimisso, L., Clarizia, G., Clementi, I., Cornaglia, S., Costa, S., Gallo, G., Guerci, C., Lambiase, C., Lauretta, A., Luffarelli, P., Neri, M. C., Piccolo, D., Rosati, E., Rossitti, P., Spolini, A., Torchia, G., Valloncini, E., Zattoni, D., Zucchi, E., Biotti, P., Cambareri, A., Coniglio, G., Coppola, A., Nepote Fus, K., Graziani, S., Grilli, M., Grego, A., Guerra, E., Livio, E., Manganini, L., Mazzeo, P., Minonne, A., Mirafiori, M., Negri, G., Palazzolo, V., Di Pasquale, C., and Tantolo, V.

Published
2024
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18. SNP-based analysis reveals high genetic structure and diversity in umbu tree (Spondias tuberosa Arruda), a native and endemic species of the Caatinga biome

Author

do Nascimento, Wellington Ferreira, Costa, Flaviane Malaquias, Alves-Pereira, Alessandro, de Araújo Batista, Carlos Eduardo, de Carvalho, Igor Araújo Santos, Garcia, Caroline Bertocco, da Silva, Allison Vieira, da Silva, Edson Ferreira, de Souza Gondim Dias, Márcia Maria, Pereira, Fábio Rodrigo Araújo, Zucchi, Maria Imaculada, and Veasey, Elizabeth Ann

Published
2024
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21. Towards 20 T Hybrid Accelerator Dipole Magnets

Author

Ferracin, P., Ambrosio, G., Arbelaez, D., Brouwer, L., Barzi, E., Cooley, L., Fajardo, L. Garcia, Gupta, R., Juchno, M., Kashikhin, V., Marinozzi, V., Novitski, I., Rochepault, E., Stern, J., Zlobin, A., and Zucchi, N.

Subjects
Physics - Accelerator Physics
Abstract

The most effective way to achieve very high collision energies in a circular particle accelerator is to maximize the field strength of the main bending dipoles. In dipole magnets using Nb-Ti superconductor the practical field limit is considered to be 8-9 T. When Nb3Sn superconductor material is utilized, a field level of 15-16 T can be achieved. To further push the magnetic field beyond the Nb3Sn limits, High Temperature Superconductors (HTS) need to be considered in the magnet design. The most promising HTS materials for particle accelerator magnets are Bi2212 and REBCO. However, their outstanding performance comes with a significantly higher cost. Therefore, an economically viable option towards 20 T dipole magnets could consist in an hybrid solution, where both HTS and Nb3Sn materials are used. We discuss in this paper preliminary conceptual designs of various 20 T hybrid magnet concepts. After the definition of the overall design criteria, the coil dimensions and parameters are investigated with finite element models based on simple sector coils. Preliminary 2D cross-section computation results are then presented and three main layouts compared: cos-theta, block, and common-coil. Both traditional designs and more advanced stress-management options are considered., Comment: arXiv admin note: substantial text overlap with arXiv:2203.13985

Published
2022
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25. Predictors for progression in amyotrophic lateral sclerosis associated to SOD1 mutation: insight from two population-based registries

Author

Martinelli, Ilaria, Ghezzi, Andrea, Zucchi, Elisabetta, Gianferrari, Giulia, Ferri, Laura, Moglia, Cristina, Manera, Umberto, Solero, Luca, Vasta, Rosario, Canosa, Antonio, Grassano, Maurizio, Brunetti, Maura, Mazzini, Letizia, De Marchi, Fabiola, Simonini, Cecilia, Fini, Nicola, Vinceti, Marco, Pinti, Marcello, Chiò, Adriano, Calvo, Andrea, and Mandrioli, Jessica

Published
2023
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27. School-Based Sexual and Reproductive Health Education for Young People from Low-Income Neighbourhoods in Northeastern Brazil: The Role of Communities, Teachers, Health Providers, Religious Conservatism, and Racial Discrimination

Author

Magno, Laio, Marinho, Lilian Fátima Barbosa, Zucchi, Eliana Miura, Amaral, Alice Mayra Santiago, Lobo, Tatiane Cristina Bacelar, Paes, Helen Cristina da S., Lima, Gisele Maria de Brito, Nunes, Cinara Cícera Salgado, Pereira, Marcos, and Dourado, Inês

Abstract

Sexual and reproductive health (SRH) education for young people is a challenge for national health systems in low-and middle-income countries. This study analysed SRH education among adolescents in a low-income neighbourhood of Brazil from the perspectives of young people themselves, primary healthcare providers, and school teachers. Using semi-structured interviews, data were collected from twelve informants aged 15-20 years, eight health professionals, and nine teachers. Interviews were analysed using the ecological framework (i.e. with a focus on individual, structural and programmatic levels). At the individual level, there was a marked lack of discussion about SRH in the family, especially with parents. As a result, young people sought information from relatives of a similar age, the Internet and social media. Racism on the part of some teachers was identified as a structural-level constraint, and lack of dialogue between the health and education sectors was a programmatic barrier. Schools were seen as propitious settings for SRH education, and joint action by health providers and teachers could be beneficial for the promotion of SRH among young people in schools.

Published
2023
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29. Towards 20 T Hybrid Accelerator Dipole Magnets

Author

Ferracin, P, Ambrosio, G, Arbelaez, D, Brouwer, L, Barzi, E, Cooley, L, Fajardo, L Garcia, Gupta, R, Juchno, M, Kashikhin, V, Marinozzi, V, Novitski, I, Rochepault, E, Stern, J, Zlobin, A, and Zucchi, N

Subjects
Engineering, Electrical Engineering, Physical Sciences, Dipole magnets, hybrid magnets, HTS, Nb3Sn magnets, superconducting, Condensed Matter Physics, Electrical and Electronic Engineering, Materials Engineering, General Physics, Electrical engineering, Condensed matter physics
Abstract

The most effective way to achieve very high collision energies in a circular particle accelerator is to maximize the field strength of the main bending dipoles. In dipole magnets using Nb-Ti superconductor the practical field limit is considered to be 8-9 T. When Nb3Sn superconductor material is utilized, a field level of 15-16 T can be achieved. To further push the magnetic field beyond the Nb3Sn limits, High Temperature Superconductors (HTS) need to be considered in the magnet design. The most promising HTS materials for particle accelerator magnets are Bi2212 and REBCO. However, their outstanding performance comes with a significantly higher cost. Therefore, an economically viable option towards 20 T dipole magnets could consist in an 'hybrid' solution, where both HTS and Nb3Sn materials are used. We discuss in this paper preliminary conceptual designs of various 20 T hybrid magnet concepts. After the definition of the overall design criteria, the coil dimensions and parameters are investigated with finite element models based on simple sector coils. Preliminary 2D cross-section computation results are then presented and three main layouts compared: cos-theta, block, and common-coil. Both traditional designs and more advanced stress-management options are considered.

Published
2022

34. Fast Optimization of Temperature Focusing in Hyperthermia Treatment of Sub-Superficial Tumors

Author

Gaffoglio, Rossella, Righero, Marco, Giordanengo, Giorgio, Zucchi, Marcello, and Vecchi, Giuseppe

Subjects
Computer Science - Computational Engineering, Finance, and Science
Abstract

Microwave hyperthermia aims at selectively heating cancer cells to a supra-physiological temperature. For non-superficial tumors, this can be achieved by means of an antenna array equipped with a proper cooling system (the water bolus) to avoid overheating of the skin. In patient-specific treatment planning, antenna feedings are optimized to maximize the specific absorption rate (SAR) inside the tumor, or to directly maximize the temperature there, involving a higher numerical cost. We present here a method to effect a low-complexity temperature-based planning. It arises from recognizing that SAR and temperature have shifted peaks due to thermal boundary conditions at the water bolus and for physiological effects like air flow in respiratory ducts. In our method, temperature focusing on the tumor is achieved via a SAR-based optimization of the antenna excitations, but optimizing its target to account for the cooling effects. The temperature optimization process is turned into finding a SAR peak position that maximizes the chosen temperature objective function. Application of this method to the 3D head and neck region provides a temperature coverage that is consistently better than that obtained with SAR-optimization alone, also considering uncertainties in thermal parameters. This improvement is obtained by solving the bioheat equation a reduced number of times, avoiding its inclusion in a global optimization process., Comment: 7 pages, 6 figure, accepted for publication in IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology

Published
2020
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36. Complete chloroplast genomes of six neotropical palm species, structural comparison, and evolutionary dynamic patterns

Author

Francisconi, Ana Flávia, Marroquín, Jonathan Andre Morales, Cauz-Santos, Luiz Augusto, van den Berg, Cássio, Martins, Kauanne Karolline Moreno, Costa, Marcones Ferreira, Picanço-Rodrigues, Doriane, de Alencar, Luciano Delmodes, Zanello, Cesar Augusto, Colombo, Carlos Augusto, Hernández, Brenda Gabriela Díaz, Amaral, Danilo Trabuco, Lopes, Maria Teresa Gomes, Veasey, Elizabeth Ann, and Zucchi, Maria Imaculada

Published
2023
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37. Randomized, double-blind, placebo-controlled trial of rapamycin in amyotrophic lateral sclerosis

Author

Mandrioli, Jessica, D’Amico, Roberto, Zucchi, Elisabetta, De Biasi, Sara, Banchelli, Federico, Martinelli, Ilaria, Simonini, Cecilia, Lo Tartaro, Domenico, Vicini, Roberto, Fini, Nicola, Gianferrari, Giulia, Pinti, Marcello, Lunetta, Christian, Gerardi, Francesca, Tarlarini, Claudia, Mazzini, Letizia, De Marchi, Fabiola, Scognamiglio, Ada, Sorarù, Gianni, Fortuna, Andrea, Lauria, Giuseppe, Bella, Eleonora Dalla, Caponnetto, Claudia, Meo, Giuseppe, Chio, Adriano, Calvo, Andrea, and Cossarizza, Andrea

Published
2023
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43. Factors predicting disease progression in C9ORF72 ALS patients

Author

Mandrioli, Jessica, Zucchi, Elisabetta, Martinelli, Ilaria, Van der Most, Laura, Gianferrari, Giulia, Moglia, Cristina, Manera, Umberto, Solero, Luca, Vasta, Rosario, Canosa, Antonio, Grassano, Maurizio, Brunetti, Maura, Mazzini, Letizia, De Marchi, Fabiola, Simonini, Cecilia, Fini, Nicola, Tupler, Rossella, Vinceti, Marco, Chiò, Adriano, and Calvo, Andrea

Published
2023
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