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12 results on '"Barsotti S"'

3. Results of the eruptive column model inter-comparison study

Author

Costa, A., Suzuki, Y.J., Cerminara, M., Devenish, B.J., Ongaro, T. Esposti, Herzog, M., Van Eaton, A.R., Denby, L.C., Bursik, M., de' Michieli Vitturi, M., Engwell, S., Neri, A., Barsotti, S., Folch, A., Macedonio, G., Girault, F., Carazzo, G., Tait, S., Kaminski, E., Mastin, L.G., Woodhouse, M.J., Phillips, J.C., Hogg, A.J., Degruyter, W., and Bonadonna, C.

Published
2016
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5. Geographical heterogeneity of clinical and serological phenotypes of systemic sclerosis observed at tertiary referral centres. The experience of the Italian SIR-SPRING registry and review of the world literature

Author

Ferri, C., De Angelis, R., Giuggioli, D., Bajocchi, G., Dagna, L., Zanframundo, G., Foti, R., Cacciapaglia, F., Cuomo, G., Ariani, A., Rosato, E., Guiducci, S., Girelli, F., Riccieri, V., Zanatta, E., Bosello, Silvia Laura, Cavazzana, I., Ingegnoli, F., De Santis, M., Murdaca, G., Abignano, G., Romeo, N., Della Rossa, A., Caminiti, M., Iuliano, A., Ciano, G., Beretta, L., Bagnato, G., Lubrano, E., De Andres, I., Giollo, A., Saracco, M., Agnes, C., Lumetti, F., Spinella, A., Magnani, L., Campochiaro, C., De Luca, G., Codullo, V., Visalli, E., Masini, F., Gigante, A., Bellando-Randone, S., Pellegrino, G., Pigatto, E., Lazzaroni, M. G., Franceschini, F., Generali, E., Mennillo, G., Barsotti, S., Mariano, G. P., Calabrese, F., Furini, F., Vultaggio, L., Parisi, S., Peroni, C. L., Rozza, D., Zanetti, A., Carrara, G., Landolfi, G., Scire, C. A., Bianchi, G., Fusaro, E., Sebastiani, Gian Domenico, Govoni, M., D'Angelo, S., Cozzi, F., Doria, A., Iannone, F., Salvarani, C., Matucci-Cerinic, M., Bosello S. (ORCID:0000-0002-4837-447X), Sebastiani G. D., Ferri, C., De Angelis, R., Giuggioli, D., Bajocchi, G., Dagna, L., Zanframundo, G., Foti, R., Cacciapaglia, F., Cuomo, G., Ariani, A., Rosato, E., Guiducci, S., Girelli, F., Riccieri, V., Zanatta, E., Bosello, Silvia Laura, Cavazzana, I., Ingegnoli, F., De Santis, M., Murdaca, G., Abignano, G., Romeo, N., Della Rossa, A., Caminiti, M., Iuliano, A., Ciano, G., Beretta, L., Bagnato, G., Lubrano, E., De Andres, I., Giollo, A., Saracco, M., Agnes, C., Lumetti, F., Spinella, A., Magnani, L., Campochiaro, C., De Luca, G., Codullo, V., Visalli, E., Masini, F., Gigante, A., Bellando-Randone, S., Pellegrino, G., Pigatto, E., Lazzaroni, M. G., Franceschini, F., Generali, E., Mennillo, G., Barsotti, S., Mariano, G. P., Calabrese, F., Furini, F., Vultaggio, L., Parisi, S., Peroni, C. L., Rozza, D., Zanetti, A., Carrara, G., Landolfi, G., Scire, C. A., Bianchi, G., Fusaro, E., Sebastiani, Gian Domenico, Govoni, M., D'Angelo, S., Cozzi, F., Doria, A., Iannone, F., Salvarani, C., Matucci-Cerinic, M., Bosello S. (ORCID:0000-0002-4837-447X), and Sebastiani G. D.

Abstract

Introduction: Systemic sclerosis (SSc) is characterized by a complex etiopathogenesis encompassing both host genetic and environmental -infectious/toxic- factors responsible for altered fibrogenesis and diffuse microangiopathy. A wide spectrum of clinical phenotypes may be observed in patients' populations from different geographical areas. We investigated the prevalence of specific clinical and serological phenotypes in patients with definite SSc enrolled at tertiary referral centres in different Italian geographical macro-areas. The observed findings were compared with those reported in the world literature. Materials and methods: The clinical features of 1538 patients (161 M, 10.5%; mean age 59.8 ± 26.9 yrs.; mean disease duration 8.9 ± 7.7 yrs) with definite SSc recruited in 38 tertiary referral centres of the SPRING (Systemic sclerosis Progression INvestiGation Group) registry promoted by Italian Society of Rheumatology (SIR) were obtained and clustered according to Italian geographical macroareas. Results: Patients living in Southern Italy were characterized by more severe clinical and/or serological SSc phenotypes compared to those in Northern and Central Italy; namely, they show increased percentages of diffuse cutaneous SSc, digital ulcers, sicca syndrome, muscle involvement, arthritis, cardiopulmonary symptoms, interstitial lung involvement at HRCT, as well increased prevalence of serum anti-Scl70 autoantibodies. In the same SSc population immunusppressive drugs were frequently employed. The review of the literature underlined the geographical heterogeneity of SSc phenotypes, even if the observed findings are scarcely comparable due to the variability of methodological approaches. Conclusion: The phenotypical differences among SSc patients' subgroups from Italian macro-areas might be correlated to genetic/environmental co-factors, and possibly to a not equally distributed national network of information and healthcare facilities.

Published
2022

11. High resolution study of cluster anion formation in low-energy electron collisions with molecular clusters of CO2, CS2, and O2

Author

Barsotti, S., Leber, E., Ruf, M.-W., and Hotop, H.

Subjects
*ANIONS, *PHOTOELECTRON spectroscopy
Abstract

Using a high resolution (ΔE=1–2 meV) laser photoelectron attachment (LPA) method, we have studied the formation of (CO2)q− (q=4–32), (CS2)q− (q=1, 2, 3, 5), and (O2)q− (q=5–14) cluster anions in collisions of low-energy electrons (0–200 meV) with molecular clusters of CO2, CS2, and O2 molecules in a skimmed supersonic beam. For CO2 clusters, the attachment spectrum is dominated by rather narrow vibrational Feshbach resonances (VFRs) of the type [(CO2)N−1CO2(νi)]− which involve a vibrationally excited molecular constituent (νi≥1 denotes excited vibrational mode). The size-dependent values of the observed redshifts of the VFRs (about 12 meV per added CO2 unit for small q) in conjunction with their narrow widths and with simple model calculations of the electron binding energies suggest that the size q of the observed (CO2)q− anions is essentially the same (q=N or N−1) as the size N of the neutral precursor (CO2)N which captures the electron. For cluster sizes q above 24, a doubling of the VFR peak structure is observed which we tentatively attribute to the transition from icosahedral (low N) to bulk cubic (high N) cluster structure, previously predicted to occur for N around 30. The size distribution in the (CO2)q− anion mass spectrum, due to attachment of electrons with well-defined energies, shows undulatory structure which reflects the presence or absence of VFRs at that particular energy. In contrast, the energy-integrated cluster anion mass spectrum shows a rather smooth dependence on cluster size q. The yield spectra for (CS2)q− cluster anions exhibit an s-wave attachment peak near 0 eV and a smoothly falling cross section towards higher energies without significant structure. In the yield for (O2)q− anions we observe a rise towards 0 eV, indicative of s-wave electron capture, and a slowly varying and essentially structureless attachment continuum between 10 and 200 meV. The attachment characteristics of the different clusters systems are discussed in the light of the basic properties of the monomers. [Copyright &y& Elsevier]

Published
2002
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12. Erratum to ‘A multidisciplinary effort to assign realistic source parameters to models of volcanic ash-cloud transport and dispersion during eruptions’ by Mastin et al. [J. Volcanol. Geotherm. Res. 188(2009)1–21]

Author

Mastin, L.G., Guffanti, M., Servranckx, R., Webley, P., Barsotti, S., Dean, K., Durant, A., Ewert, J.W., Neri, A., Rose, W.I., Schneider, D., Siebert, L., Stunder, B., Swanson, G., Tupper, A., Volentik, A., and Waythomas, C.F.

Published
2010
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