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29 results on '"Benna, C"'

1. Review of the classification and properties of 62 variable stars in Cygnus

Author

La Rocca, P., Bonasia, M., Moreo, P., Zamariola, C., Benna, C., Gardiol, D., and Pettiti, G.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

This study aims to assess the properties and classification of 62 variable stars in Cygnus, little studied since their discovery and originally reported in the Information Bulletin on Variable Stars (IBVS) 1302. Using data from previous studies and several astronomical databases, we performed our analysis mainly utilizing a period analysis software and comparing the photometric characteristics of the variables in a Colour-Absolute Magnitude Diagram. For all stars, the variability is confirmed. We discovered new significant results for the period and/or type of 17 variables and highlighted incorrect cross-reference names on astronomical databases for 23 stars. For 3 stars, whose original type was unknown, we propose a new type. We calculated an epoch of a minimum or a maximum for 24 stars; for 3 of them, the epoch has been defined for the first time. This assessment also identifies some cases for which results from the ASAS-SN Catalog of Variable Stars are not consistent with results from Gaia DR2 and/or our analysis., Comment: 59 Pages, 47 Figures, 9 Tables

Published
2021
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2. SWELTO -- Space WEather Laboratory in Turin Observatory

Author

Bemporad, A., Abbo, L., Barghini, D., Benna, C., Biondo, R., Bonino, D., Capobianco, G., Carella, F., Cora, A., Fineschi, S., Frassati, F., Gardiol, D., Giordano, S., Liberatore, A., Mancuso, S., Mignone, A., Rasetti, S., Reale, F., Riva, A., Salvati, F., Susino, R., Volpicelli, A., and Zangrilli, L.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Physics - Space Physics, Physics::Space Physics, Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Solar and Stellar Astrophysics (astro-ph.SR), Space Physics (physics.space-ph)
Abstract

SWELTO -- Space WEather Laboratory in Turin Observatory is a conceptual framework where new ideas for the analysis of space-based and ground-based data are developed and tested. The input data are (but not limited to) remote sensing observations (EUV images of the solar disk, Visible Light coronagraphic images, radio dynamic spectra, etc...), in situ plasma measurements (interplanetary plasma density, velocity, magnetic field, etc...), as well as measurements acquired by local sensors and detectors (radio antenna, fluxgate magnetometer, full-sky cameras, located in OATo). The output products are automatic identification, tracking, and monitoring of solar stationary and dynamic features near the Sun (coronal holes, active regions, coronal mass ejections, etc...), and in the interplanetary medium (shocks, plasmoids, corotating interaction regions, etc...), as well as reconstructions of the interplanetary medium where solar disturbances may propagate from the Sun to the Earth and beyond. These are based both on empirical models and numerical MHD simulations. The aim of SWELTO is not only to test new data analysis methods for future application for Space Weather monitoring and prediction purposes, but also to procure, test and deploy new ground-based instrumentation to monitor the ionospheric and geomagnetic responses to solar activity. Moreover, people involved in SWELTO are active in outreach to disseminate the topics related with Space Weather to students and the general public.

Published
2021
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3. Investigation on the star NSVS 1925037

Author

Amico, G., Amico, M., Benna, C., Gardiol, D., and Pettiti, G.

Subjects
Astrophysics - Solar and Stellar Astrophysics, FOS: Physical sciences, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

An analysis of available photometric data of NSVS 1925037 and a search of a variable counterpart has been performed using astrometric and photometric data from Gaia DR2 and ASAS-SN databases., Comment: 11 pages, 10 Figures, 4 Tables

Published
2019
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4. Proper identification of variable star V683 Cas

Author

Corsato, S., Di Lauro, C., Gasperi, G., Grasso, S., Innocente, I., Possemato, R., Benna, C., Gardiol, D., Pettiti, G., and Nesci, R.

Subjects
Astrophysics - Solar and Stellar Astrophysics, FOS: Physical sciences, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

Investigation on the object reported by SIMBAD database as V683 Cas shows that this variable star corresponds to the eclipsing binary system GSC 03699-00091 (also identified as NSVS 1850718). The results of the photometric observations of the stars nearby to the position indicated for V683 Cas are reported., Comment: 20 Pages, 8 Figures, 6 Tables. Appendix 1: M303 photometric data. Appendix 2: BVRI photometric data of star Gaia DR1 464387841323087232. Appendix 3: BVRI photometric data of star Gaia DR1 464387841322326272

Published
2018
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5. The Ultraviolet Coronagraph Spectrometer for the solar and heliospheric observatory

Author

Kohl, Jl, Esser, R, Gardner, Ld, Habbal, S, Daigneau, Ps, Dennis, Ef, Nystrom, Gu, Panasyuk, A, Raymond, Jc, Smith, Pl, Strachan, L, Vanballegooijen, Aa, Noci, G, Fineschi, S, Romoli, M, Ciaravella, A, Modigliani, A, Huber, Mce, Antonucci, E, Benna, C, Giordano, S, Tondello, G, Nicolosi, Piergiorgio, Naletto, Giampiero, Pernechele, C, Spadaro, D, Poletto, G, Livi, S, Vonderluhe, O, Geiss, J, Timothy, Jg, Gloeckler, G, Allegra, A, Basile, G, Brusa, R, Wood, B, Siegmund, Ohw, Fowler, W, Fisher, R, and Jhabvala, M.

Subjects
Space and Planetary Science, Astronomy and Astrophysics
Published
1995

11. The Ultraviolet Coronagraph Spectrometer for the Solar and Hellospheric Observatory

Author

Raymond, J. C., Kohl, J. L., Esser, R., Gardner, L. D., Habbal, S., Strachan, L., Ballegooijen, A. A., Noci, G., Fineschi, S., Romoli, M., Huber, M. C. E., Antonucci, E., Benna, C., Luhe, O., Naletto, G., Nicolosi, P., Pernechele, C., Tondello, G., Geiss, J., Gloeckler, G., Daniele Spadaro, Daigneau, P. S., Nystrom, G. U., Allegra, A., Basile, G., Brusa, R., Wood, B., and Siegmund, O. H. W.

12. The quiescent corona and slow solar wind

Author

Noci, G., Kohl, J. L., Antonucci, E., Tondello, G., Huber, M. C. E., Fineschi, S., Gardner, L. D., Korendyke, C. M., Nicolosi, P., Romoli, M., Spadaro, D., Maccari, L., Raymond, J. C., Siegmund, O. H. W., Benna, C., Ciaravella, A., Silvio Giordano, Michels, J., Modigliani, A., Naletto, G., Panasyuk, A., Pernechele, C., Poletto, G., Smith, P. L., and Strachan, L.

13. First Results from the SOHO Ultraviolet Coronagraph Spectrometer

Author

Kohl, J. L., Noci, G., Antonucci, E., Tondello, G., Huber, M. C. E., Benna, C., Ciaravella, A., Fineschi, S., Gardner, L. D., Giordano, S., Karovska, M., Michels, J., Naletto, G., Nicolosi, P., Poletto, G., claudio pernechele, Raymond, J. C., Romoli, M., Siegmund, O. H. W., Spadaro, D., Smith, P. L., and Strachan, L.

14. First results from the SOHO ultraviolet coronagraph spectrometer

Author

Kohl, J. L., Noci, G., Antonucci, E., Tondello, G., Huber, M. C. E., Gardner, L. D., Nicolosi, P., Strachan, L., Fineschi, S., Raymond, J. C., Romoli, M., Spadaro, D., Panasyuk, A., Siegmund, O. H. W., Benna, C., Ciaravella, A., Cranmer, S. R., Silvio Giordano, Karovska, M., Martin, R., Michels, J., Modigliani, A., Naletto, G., Pernechele, C., Poletto, G., and Smith, P. L.

15. First Results from UVCS: Dynamics of the Extended Corona

Author

Antonucci, E., Noci, G., Kohl, J. L., Tondello, G., Huber, M. C. E., Giordano, S., Benna, C., Ciaravella, A., Fineschi, S., Gardner, L. D., Martin, R., Michels, J., Naletto, G., Nicolosi, P., Panasyuk, A., Raymond, C. J., Romoli, M., Daniele Spadaro, Strachan, L., and Ballegooijen, A.

16. Intercalibration and Co-Registration of the LASCO, UVCS and SUMER instruments on SOHO

Author

Michels, J., Kohl, J. L., Noci, G., Antonucci, E., Tondello, G., Huber, M. C. E., Curdt, W., Hollandt, J., Lemaire, P., Schuhle, U., Wilhelm, K., Korendyke, C., Moran, T., Raymond, J. C., Romoli, M., Benna, C., Angela Ciaravella, Fineschi, S., Gardner, L. D., Giordano, S., Naletto, G., Nicolosi, P., Siegmund, O. H. W., Spadaro, D., Smith, P. L., and Strachan, L.

20. Absolute Elemental Abundances in Streamers

Author

Raymond, J. C., Kohl, J., Suleiman, R., Angela Ciaravella, Fineschi, S., Gardner, L., Panasyuk, A., Strachan, L., Noci, G., Antonucci, E., Nicolosi, P., Naletto, G., Giordano, S., and Benna, C.

22. In-Flight Performance of the SOHO Ultraviolet Coronagraph Spectrometer

Author

Gardner, L. D., Kohl, J. L., Noci, G., Antonucci, E., Tondello, G., Huber, M. C. E., Ciaravella, A., Fineschi, S., Giordano, S., Moran, T., Naletto, G., Nicolosi, P., Romoli, M., Strachan, L., Benna, C., Pernechele, C., Raymond, J. C., Siegmund, O. H. W., Daniele Spadaro, and Smith, P. L.

27. Coronal Emission Lines with UVCS

Author

Raymond, J. C., Noci, G., Kohl, J. L., Antonucci, E., Tondello, G., Huber, M. C. E., Benna, C., Ciaravella, A., Fineschi, S., Gardner, L. D., Giordano, S., Naletto, G., Nicolosi, P., Romoli, M., Siegmund, O. H. W., Daniele Spadaro, Smith, P. L., Strachan, L., and Martin, R.

29. Basal and Calcium-Stimulated Procalcitonin for the Diagnosis of Medullary Thyroid Cancers: Lights and Shadows

Author

Simona Censi, Marta Di Stefano, Andrea Repaci, Teresa Benvenuti, Jacopo Manso, Uberto Pagotto, Maurizio Iacobone, Susi Barollo, Loris Bertazza, Francesca Galuppini, Clara Benna, Gianmaria Pennelli, Mario Plebani, Diego Faggian, Carla Colombo, Laura Fugazzola, Caterina Mian, Censi S., Di Stefano M., Repaci A., Benvenuti T., Manso J., Pagotto U., Iacobone M., Barollo S., Bertazza L., Galuppini F., Benna C., Pennelli G., Plebani M., Faggian D., Colombo C., Fugazzola L., and Mian C.

Subjects
Adult, calcitonin, diagnosis, markers, medullary thyroid carcinoma, procalcitonin, Medullary cavity, endocrine system diseases, Endocrinology, Diabetes and Metabolism, Calcium stimulation test, chemistry.chemical_element, Calcium, Diseases of the endocrine glands. Clinical endocrinology, Procalcitonin, Basal (phylogenetics), Endocrinology, Retrospective Studie, hemic and lymphatic diseases, medicine, Biomarkers, Tumor, Humans, Thyroid Neoplasms, Aged, Retrospective Studies, Original Research, marker, Aged, 80 and over, business.industry, Thyroid, Medullary thyroid cancer, Middle Aged, RC648-665, medicine.disease, Carcinoma, Neuroendocrine, diagnosi, medicine.anatomical_structure, chemistry, Calcitonin, business, Nuclear medicine, Human
Abstract

BackgroundProcalcitonin (proCt) was recently proposed as an alternative or in addition to calcitonin (Ct) in medullary thyroid cancer (MTC) diagnostics.MethodsSerum basal Ct (bCt) and proCt (bproCt) levels were measured before surgery from a consecutive series of patients with (n=43) and without (n=75) MTC, retrospectively collected in Padua. Serum bproCt, bCt and stimulated proCt and Ct (sproCt and sCt) were measured in another consecutive series of 33 patients seen at three tertiary-level institutions undergoing a calcium stimulation test prior to surgery, 20 of them with a final diagnosis of MTC, and 13 with non-MTC nodular disease.ResultsMedian bproCt levels were higher in MTC than in non-MTC. A positive correlation was found for bproCt with bCt (P2 = 0.75), and with tumor size (P2 = 0.39). The cut-off for bproCt differentiating between MTC and non-MTC patients was >0.07 ng/ml (sensitivity: 85.7%, specificity: 98.9%, positive predictive value [PPV]: 98.2%, negative predictive value [NPV]: 90.6%, P0.07 ng/ml in 38/39 (97.4%) patients with MTC >10 mm, it was above said cut-off only in 15/23 (65.2%) patients with tumors ≤10 mm. A sproCt >0.19 ng/ml was able to identify MTC [sensitivity: 90.0%, specificity:100.0%, PPV: 100.0%, NPV: 86.7% (PConclusionsOur data suggest that bproCt can be a good adjunct to Ct for MTC diagnostic purposes. In consideration of its high specificity, it can be used in combination with Ct in MTC diagnostics, particularly in the case of mildly elevated basal Ct levels.

Published
2021

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