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Your search keyword '"Elisabetta Tommasi"' showing total 12 results
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12 results on '"Elisabetta Tommasi"'

1. The detector control unit of the fine guidance sensor instrument on-board the ARIEL mission: design status

Author

Vladimiro Noce, Mauro Focardi, Marina Vela Nunez, Luca Naponiello, Andrea Lorenzani, Raoul Grimoldi, Elio Mangraviti, Luca Carli, Kamil Ber, Miroslaw Rataj, Konrad Rutkowski, Konrad R. Skup, Przemyslaw Nita, Giuseppina Micela, Giuseppe Malaguti, Natalia Auricchio, Emanuele Pace, Giampaolo Preti, Enzo Pascale, Giovanna Tinetti, Paul Eccleston, Elisabetta Tommasi, Mario Salatti, Raffaele Piazzolla, Pietro Bolli, Renzo Nesti, Marcella Iuzzolino, Luca Carbonaro, Ciro Del Vecchio, Debora Ferruzzi, Federico Miceli, Anna Brucalassi, Gilberto Falcini, Andrea Tozzi, and Daniele Gottini

Published
2022
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2. FEA testing the pre-flight Ariel primary mirror

Author

Daniele Gottini, Emanuele Pace, Andrea Tozzi, Giovanni Bianucci, Andrea Bocchieri, Daniele Brienza, Anna Brucalassi, Rodolfo Canestrari, Luca Carbonaro, Paolo Chioetto, Fausto Cortecchia, Ciro Del Vecchio, Emiliano Diolaiti, Paul Eccleston, Salma Fahmy, Debora Ferruzzi, Camille Galy, Gabriele Grisoni, Elisa Guerriero, Jean-Philippe Halain, Marie-Laure Hellin, Marcella Iuzzolino, Delphine Jollet, Matteo Lombini, Giuseppe Malaguti, Giuseppina Micela, Nadia Missaglia, Gianluca Morgante, Lorenzo Mugnai, Luca Naponiello, Enzo Pascale, Raffaele Piazzolla, Giampaolo Preti, Stephane Roose, Mario Salatti, Jean-Christophe Salvignol, Antonio Scippa, Luca Terenzi, Giovanna Tinetti, Elisabetta Tommasi Di Vigano, and Paola Zuppella

Published
2022
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3. Heat treatment procedure of the aluminium 6061-T651 for the Ariel telescope mirrors

Author

Elisa Guerriero, Paolo Chioetto, Andrea Tozzi, Paola Zuppella, Rodolfo Canestrari, Anna Brucalassi, Marcella Iuzzolino, Debora Ferruzzi, Antonio Scippa, Ciro Del Vecchio, Gilberto Falcini, Luca Carbonaro, Gianluca Morgante, Fausto Cortecchia, Emiliano Diolaiti, Paul Eccleston, Matteo Lombini, Giuseppe Malaguti, Giuseppina Micela, Emanuele Pace, Enzo Pascale, Raffaele Piazzolla, Giampaolo Preti, Mario Salatti, Giovanna Tinetti, and Elisabetta Tommasi

Published
2022
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4. The instrument control unit of the ARIEL payload: design evolution following the unit and payload subsystems SRR (system requirements review)

Author

Vladimiro Noce, Mauro Focardi, Anna Maria Di Giorgio, Emanuele Galli, Maria Farina, Giovanni Giusi, Marina Vela Nunez, Luca Naponiello, Andrea Lorenzani, Luca Serafini, Carlo Del Vecchio Blanco, Marco Verna, Cristophe Cara, Michel Berthé, Jerome Martignac, Roland Ottensamer, Giuseppina Micela, Giuseppe Malaguti, Emanuele Pace, Giampaolo Preti, Federico Miceli, Enzo Pascale, Giovanna Tinetti, Paul Eccleston, Elisabetta Tommasi, Fulvio De Persio, Pietro Bolli, Renzo Nesti, Marcella Iuzzolino, Luca Carbonaro, Ciro Del Vecchio, Debora Ferruzzi, Anna Brucalassi, Gilberto Falcini, Andrea Tozzi, and Daniele Gottini

Published
2022
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5. The telescope assembly of the Ariel space mission

Author

Emanuele Pace, Andrea Tozzi, Manuel Adler Abreu, Gustavo Alonso, Bruno Barroqueiro, Giovanni Bianucci, Andrea Bocchieri, Daniele Brienza, Anna Brucalassi, Matteo Burresi, Rodolfo Canestrari, Luca Carbonaro, João Castanheira, Paolo Chioetto, Josep Colomé Ferrer, Carlos Compostizo, Fausto Cortecchia, Fabio D'Anca, Ciro Del Vecchio, Emiliano Diolaiti, Paul Eccleston, Salma Fahmy, Alejandro Fernandez Soler, Debora Ferruzzi, Mauro Focardi, Sara Freitas, Camille Galy, Andres Garcia Perez, Daniele Gottini, Samuele Grella, Gabriele Grisoni, Elisa Guerriero, Jean-Philippe Halain, Marie-Laure Hellin, Lucia Ianni, Marcella Iuzzolino, Delphine Jollet, Matteo Lombini, Ricardo Machado, Giuseppe Malaguti, Alexandra Mazzoli, Giuseppina Micela, Federico Miceli, Giuseppe Mondello, Gianluca Morgante, Lorenzo Mugnai, Luca Naponiello, Vladmiro Noce, Enzo Pascale, Javier Perez Alvarez, Raffaele Piazzolla, Carlo Pompei, Giampaolo Preti, Stephane Roose, Mario Salatti, Jean-Christophe Salvignol, Antonio Scippa, Christophe Serre, Carlo Simoncelli, Frederico Teixeira, Luca Terenzi, Giovanna Tinetti, Leonardo Tommasi, Elisabetta Tommasi Di Vigano, Bart Vandenbussche, Dervis Vernani, and Paola Zuppella

Subjects
mirror, telescopes, optical benches, aluminum, manufacturing, off axis mirror, coating, interfaces, space operations, cryogenics
Published
2022

6. Type 1 diabetes is associated with significant changes of ACE and ACE2 expression in peripheral blood mononuclear cells

Author

Federica Tonon, Riccardo Candido, Barbara Toffoli, Elisabetta Tommasi, Thomas Cortello, Bruno Fabris, Stella Bernardi, Tonon, F., Candido, R., Toffoli, B., Tommasi, E., Cortello, T., Fabris, B., and Bernardi, S.

Subjects
Adult, Male, Type 1 diabete, Endocrinology, Diabetes and Metabolism, Mononuclear, Medicine (miscellaneous), ACE2, Peptidyl-Dipeptidase A, Diabete, Renin-Angiotensin System, Leukocytes, Diabetes Mellitus, Humans, Viral, COVID-19, Diabetes, Gender, Renin-angiotensin system, Type 1 diabetes, Angiotensin II, Case-Control Studies, Female, Leukocytes, Mononuclear, RNA, Viral, SARS-CoV-2, Angiotensin-Converting Enzyme 2, Diabetes Mellitus, Type 1, Nutrition and Dietetics, RNA, Case-Control Studie, Cardiology and Cardiovascular Medicine, Human, Type 1
Abstract

Background and aims: The renin-angiotensin system (RAS), which is a key mediator of cardiovascular homeostasis, has two main axes. The classic one, including angiotensin-converting enzyme (ACE) and Angiotensin (Ang) II, promoting vasoconstriction, and the “alternative” one, including ACE2 and Ang1-7, with opposed actions to AngII. ACE2 has been identified as the main receptor of SARS-CoV2, whereby it enters the cells, leading to the downregulation of surface ACE2 and RAS tissue unbalance. Given that diabetes is associated with an increase in COVID-19 severity and death, we aimed at evaluating RAS expression in patients with type 1 diabetes (T1D). Methods and results: This is a case–control study comparing 39 T1D patients to 33 controls, with a median age of 29 and 32 years, and no comorbidities. ACE and ACE2 gene expression was assessed in peripheral blood mononuclear cells. T1D patients had higher ACE expression and circulating AngII, which were related to glucose levels. T1D patients had lower ACE2 expression. However, ACE2 expression was also related to the sex of participants, being higher in the female group. T1D women did not show the same increase of ACE2 expression that was seen in control women. Conclusion: T1D promotes the increase of ACE, AngII, and ACE/ACE2, which might contribute to the higher cardiovascular risk, as well as to severe tissue injury induced by SARS-CoV2 in these patients. The ratio ACE/ACE2 does not differ between men and women with T1D, which might explain why CVD or COVID-19 do not show substantial gender differences in these patients.

Published
2022

7. Preliminary analysis of ground-to-flight mechanical tolerances of the Ariel mission telescope

Author

Paolo Chioetto, Andrea Tozzi, Anna Brucalassi, Debora Ferruzzi, Andrew Caldwell, Martin Caldwell, Fausto Cortecchia, Emiliano Diolaiti, Paul Eccleston, Elisa Guerriero, Matteo Lombini, Giuseppe Malaguti, Giuseppina Micela, Emanuele Pace, Enzo Pascale, Raffaele Piazzolla, Giampaolo Preti, Mario Salatti, Giovanna Tinetti, Elisabetta Tommasi, and Paola Zuppella

Published
2022

8. Optimization of the Ariel primary mirror

Author

Ciro Del Vecchio, Luca Carbonaro, Anna Brucalassi, Andrea Tozzi, Daniele Gottini, Antonio Scippa, Emanuele Pace, Giuseppe Malaguti, Giuseppina Micela, Giuanluca Morgante, Mauro Focardi, Enzo Pascale, Giampaolo Preti, Paola Zuppella, Mario Salatti, Raffaele Piazzolla, Elisabetta Tommasi, Luca Naponiello, and Paolo Chioetto

Published
2022

9. Toward ARIEL’s primary mirror

Author

Andrea Tozzi, Anna Brucalassi, Rodolfo Canestrari, Paolo Chioetto, Ciro Del Vecchio, Luca Carbonaro, Fausto Cortecchia, Emiliano Diolaiti, Paul Eccleston, Gilberto Falcini, Debora Ferruzzi, Daniele Gottini, Elisa Guerriero, Marcella Iuzzolino, Riccardo Lilli, Matteo Lombini, Giuseppe Malaguti, Giuseppina Micela, Federico Miceli, Gianluca Morgante, Emanuele Pace, Enzo Pascale, Raffaele Piazzolla, Giampaolo Preti, Mario Salatti, Antonio Scippa, Giovanna Tinetti, Elisabetta Tommasi, Dervis Vernani, and Paola Zuppella

Published
2022

10. In-orbit performance of the ISO long-wavelength spectrometer

Author

Tanya L. Lim, Matthew Joseph Griffin, Peter E. Clegg, Bruce Swinyard, Stefano Pezzuto, Elisabetta Tommasi, Cecile Gry, Gary R. Davis, Sarah J. Leeks, and Martin Burgdorf

Subjects
Physics, Wavelength, Optics, Spacecraft, Spectrometer, business.industry, Detector, Calibration, Astronomical interferometer, Spectral resolution, Orbital mechanics, business, Remote sensing
Abstract

The short wavelength spectrometer (SWS) is one of the four instruments on-board of ESA's IR SPace Observatory (ISO), launched on 15 November 1995. It covers the wavelength range of 2.38-45.2 microns with a spectral resolution ranging from 1000-2000. By inserting Fabry-Perot filters the resolution can be enhanced by a factor 20 for the wavelength range from 11.4-44.5 microns. After the successful launch the instrument was tested and calibrated during a period of spacecraft checkout and performance verification. The opto- mechanical construction of the instrument appears to behave extremely well. The instrument performance is on all aspects as expected, except for the detector sensitivity where the noise is dominated by effects of particle radiation. We given here an overview of the in-orbit performance, discuss the calibration and present some result from trend analysis of the most important instrument and detector parameters.

Published
1998
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11. Long-term performance of doped Ge:Ga photoconductors in the space environment

Author

Peter E. Clegg, Matthew Joseph Griffin, Elisabetta Tommasi, Tanya L. Lim, Bruce Swinyard, and Martin Burgdorf

Subjects
Physics, Spectrometer, Physics::Instrumentation and Detectors, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, chemistry.chemical_element, Germanium, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Semiconductor detector, Condensed Matter::Materials Science, Responsivity, Optics, chemistry, Optoelectronics, Beryllium, Nuclear Experiment, business, Dark current, Space environment
Abstract

The long wavelength spectrometer on board the ESA IR Space Observatory employs doped geranium photoconductors to perform spectroscopy in the 43 to 197 micrometers waveband. The instrument has been in continuous on orbit operation for over two years - longer than any other experiment in this waveband. Invaluable data have been gathered on the long term performance of a beryllium doped germanium detector and both stressed and unstressed gallium doped germanium detectors in the presence of ionizing radiation in the form of cosmic rays and charged particles trapped in the Earth's magnetic fields. In this paper we report on the in-orbit performance of the detectors and in particular on the long term behavior of the dark current and responsivity.

Published
1998
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12. Italian science in space: technical attempts at communicating

Author

Elisabetta Tommasi

Subjects
Communication, Political science, Engineering ethics, Space (commercial competition)
Abstract

This study analyses the image of Italian space activities given by national dailies in the period from February 2001 to July 2002, in order to understand Italians' view of "Italy in space". It also considers the role that space scientific research can play in the communication strategies of Italian space activities in the upcoming years and the possible ways to improve its image through mass media.

Published
2003
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