Zobrazeno 1 - 10
of 1 203
pro vyhledávání: '"Bizzocchi, A."'
Autor:
Bellotti, Renato, Bizzocchi, Nicola, Lomax, Antony J., Adelmann, Andreas, Weber, Damien C., Hrbacek, Jan
Purpose: Beam angle selection is critical in proton therapy treatment planning, yet automated approaches remain underexplored. This study presents and evaluates GAMBAS, a novel, fast machine learning model for automatic beam angle selection. Methods:
Externí odkaz:
http://arxiv.org/abs/2408.01206
We report the derivation of rate coefficients for the rotational (de-)excitation of PO$^+$ induced by collisions with H$_2$. The calculations were performed on a four-dimensional potential energy surface, obtained on top of highly accurate $ab$ $init
Externí odkaz:
http://arxiv.org/abs/2310.08052
Publikováno v:
A&A 674, L8 (2023)
Context. Observations of $\rm ^{14}N/^{15}N$ in the interstellar medium are becoming more frequent thanks to the increased telescope capabilities. However, interpreting these data is still puzzling. In particular, measurements of $\rm ^{14}N/^{15}N$
Externí odkaz:
http://arxiv.org/abs/2305.18289
Autor:
Arturs Meijers, Juliane Daartz, Antje-Christin Knopf, Michelle van Heerden, Nicola Bizzocchi, Miriam Varela Vazquez, Barbara Bachtiary, Alessia Pica, Helen A Shih, Damien Charles Weber
Publikováno v:
Radiation Oncology, Vol 19, Iss 1, Pp 1-9 (2024)
Abstract Background and purpose Rare but severe toxicities of the optic apparatus have been observed after treatment of intracranial tumours with proton therapy. Some adverse events have occurred at unusually low dose levels and are thus difficult to
Externí odkaz:
https://doaj.org/article/2b79895c03bf4b5d859941f1892a5b74
Autor:
Colzi, L., Romano, D., Fontani, F., Rivilla, V. M., Bizzocchi, L., Beltrán, M. T., Caselli, P., Elia, D., Magrini, L.
Publikováno v:
A&A 667, A151 (2022)
Nitrogen isotopic ratios are a key tool for tracing Galactic stellar nucleosynthesis. We present the first study of the $^{14}$N/$^{15}$N abundance ratio in the outer regions of the Milky Way (namely, for galactocentric distances, $R_{\rm GC}$, from
Externí odkaz:
http://arxiv.org/abs/2209.10620
Autor:
Asensio, J. Ferrer, Spezzano, S., Caselli, P., Alves, F. O., Sipilä, O., Redaelli, E., Bizzocchi, L., Lique, F., Mullins, A.
Spectral line profiles of several molecules observed towards the pre-stellar core L1544 appear double-peaked. For abundant molecular species this line morphology has been linked to self-absorption. However, the physical process behind the double-peak
Externí odkaz:
http://arxiv.org/abs/2209.02489
The formyl cation (HCO+) is one of the most abundant ions in molecular clouds and plays a major role in the interstellar chemistry. For this reason, accurate collisional rate coefficients for the rotational excitation of HCO+ and its isotopes due to
Externí odkaz:
http://arxiv.org/abs/2208.09850
Publikováno v:
A&A 664, L2 (2022)
Isotopologue abundance ratios are important to understand the evolution of astrophysical objects and ultimately the origins of a planetary system like our own. Being nitrogen a fundamental ingredient of pre-biotic material, understanding its chemistr
Externí odkaz:
http://arxiv.org/abs/2207.06121
Autor:
Rivilla, Víctor M., Jiménez-Serra, Izaskun, Martín-Pintado, Jesus, Colzi, Laura, Tercero, Belén, de Vicente, Pablo, Zeng, Shaoshan, Martín, Sergio, de la Concepción, Juan García, Bizzocchi, Luca, Melosso, Mattia, Rico-Villas, Fernando, Requena-Torres, Miguel A.
Nitriles play a key role as molecular precursors in prebiotic experiments based on the RNA-world scenario for the origin of life. These chemical compounds could have been partially delivered to the young Earth from extraterrestrial objects, stressing
Externí odkaz:
http://arxiv.org/abs/2206.01053
Autor:
Giers, K., Spezzano, S., Alves, F., Caselli, P., Redaelli, E., Sipilä, O., Khalifa, M. Ben, Wiesenfeld, L., Brünken, S., Bizzocchi, L.
Publikováno v:
A&A 664, A119 (2022)
Context: In the centre of pre-stellar cores, the deuterium fractionation is enhanced due to the cold temperatures and high densities. Therefore, the chemistry of deuterated molecules can be used to probe the evolution and the kinematics in the earlie
Externí odkaz:
http://arxiv.org/abs/2205.14963