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36 results on '"Cerini, L."'

1. Input ear impedance and eardrum energy reflectance variations related to increase in intracochlear and intracranial pressure.

Author

Botti, T., Cerini, L., Sanjust, F., Sisto, R., Sharma, Y., and Moleti, A.

Subjects
*MIDDLE ear physiology, *COCHLEAR implants, *AUDITORY perception testing, *TYMPANIC membrane, *INTRACRANIAL pressure, *CONFERENCES & conventions, *IMPEDANCE audiometry
Abstract

Variations of the intracranial pressure (ICP) are expected in particular pathologies, in microgravity conditions, and associated with postural changes. Lumbar puncture is a direct but highly invasive ICP diagnostic method. Mechanical models of the inner and middle ear suggest an indirect non-invasive method based on acoustic measurements. Since the cerebro-spinal fluid is in contact with the intracochlear fluid, a change of the pressure in the lymphatic fluid of the peripheral hearing system gives information about variations of the ICP. In particular, the increase in the cochlear fluid pressure is measurable as increase of the middle ear reflectance and, consequently, the otoacoustic emission (OAE) phase (Buki et al., 1996; Avan et al., 2018; Voss et al., 2010). Avan et al. (2000) theoretically characterized the enhancement of the middle ear stiffness in terms of stapedius reflex activity as a reduction of the stapes compliance and observed the relative increase of the distortion product OAEs (DPOAEs) phase. As ICP changes can be induced by postural changes, we use theoretical models of middle ear transmission to discuss how and why the reactance of input ear impedance Z changes with the body posture, showing correlation with the increase and the frequency shift of the eardrum energy reflectance, and the DPOAE phase changes. Specifically, in the low-frequency range, the reactance of Z is stiffness-dominated, thus it is a negative function of (and inversely proportional to) frequency. When a tested subject changes position from orthostatism to clinostatism, the negative term of reactance decreases and the frequency of null reactance increases. This evidence is in accordance with the reduction of the stapes compliance which is most relevant at very low frequency. These results help providing a theoretical basis to (and a connection among) the empirical methods for the indirect estimate of ICP variations based on the monitor of different observable consequences of the variation of the middle ear transmission, which can be applied in microgravity conditions or also in cerebrospinal diseases. [ABSTRACT FROM AUTHOR]

Published
2024

2. Non-invasive monitoring of intracranial pressure changes: utilizing otoacoustic emissions.

Author

Sharma, Y., Botti, T., Cerini, L., Lucertini, M., Minniti, T., Moleti, A., Russo, A., Sanjust, F., and Sisto, R.

Subjects
MIDDLE ear physiology, INTRACRANIAL pressure, OTOACOUSTIC emissions, CONFERENCES & conventions, PATIENT monitoring
Abstract

Introduction: Invasive techniques for objectively measuring intracranial pressure (ICP) pose significant risks including infection, intracerebral hemorrhage, and brain injury (Maniker et al., 2006; Wolfe and Torbey, 2009; Scheithauer et al., 2009). Otoacoustic emissions (OAEs) provide non-invasive indicators of ICP changes, as the OAE phase reflects middle ear transmission, which is influenced by ICP via its connection to intracochlear pressure. A calibration of the technique is based on the ICP and OAE phase data collected by Buki et al. (1996) in patients undergoing controlled ICP changes during neurosurgery. Forward pressure level (FPL) calibration provides additional insight into middle ear transmission, complementing and validating OAE phase measurements. Material and methods: Five International Space Station (ISS) normal-hearing astronauts were tested for distortion product otoacoustic emissions (DPOAEs) pre-flight, in microgravi-ty in-flight conditions, and post-flight. Ground experiments were conducted involving 20 young volunteers, who were DPOAE tested in different body postures. The DPOAE response was time-frequency filtered (Moleti et al., 2012) to unmix the distortion and reflection components. The FPL calibration data provided, as a byproduct, a direct estimate of the load impedance measured in the ear canal, which is related to the middle ear reflectance. Results: Systematic changes associated with microgravity and postural changes were observed for all considered physical quantities, with the DPOAE phase generally yielding the best results. Although physical quantities such as reflectance and load impedance are more directly related to ICP changes than the OAE phase, their numerical evaluation may be more difficult, because it involves ratios between complex quantities that are very sensitive to phase uncertainties. Conclusions: DPOAE measurements with FPL calibration and component unmixing provide effective non-invasive indicators of ICP changes. Future research directions include applications in Glaucoma patients and absolute calibration in neural surgery environments for several types of clinical population such as hydrocephalus and intracranial tumor. [ABSTRACT FROM AUTHOR]

Published
2024

3. Mission Beyond: The Acoustic Diagnostics Experiment on Board the International Space Station

Author

Moleti, A., primary, D’Amico, A., additional, Orlando, M. P., additional, Pennazza, G., additional, Santonico, M., additional, Zompanti, A., additional, Pezzilli, R., additional, Zupo, G., additional, Sisto, R., additional, Cerini, L., additional, Sanjust, F., additional, Iarossi, S., additional, De Luca, M., additional, Castro, F. Lo, additional, Deffacis, M., additional, Trichilo, M., additional, Crisafi, A., additional, Di Tana, V., additional, Piacenza, C., additional, Lepore, P., additional, Castagnolo, D., additional, Piccirillo, S., additional, Valentini, G., additional, and Mascetti, G., additional

Published
2020
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4. The acoustic diagnostics experiment of the mission BEYOND: Advanced otoacoustic tests on the International Space Station

Author

Moleti, A., Orlando, M. P., Pennazza, G., Santonico, M., Zompanti, A., Sisto, R., Cerini, L., Sanjust, F., D Amico, A., Deffacis, M., Crisafi, A., Piacenza, C., Truscelli, G., Castagnolo, D., Giovanni VALENTINI, Mascetti, G., and Piccirillo, S.

Subjects
Settore FIS/07, Audiological tests, International Space Station, Micro-gravity, Otoacoustic emissions
Published
2019

9. Search for the $\phi1860$ Pentaquark at COMPASS

Author

Ageev, E. S., Alexakhin, V. Y. U., Alexandrov, Y. U., Alexeev, G. D., Amoroso, A., Badelek, B., Balestra, F., Ball, J., Baum, G., Bedfer, Y., Berglund, P., Bernet, C., Bertini, R., Birsa, R., Bisplinghoff, J., Bordalo, P., Bradamante, Franco, Bressan, Andrea, Brona, G., Burtin, E., Bussa, M. P., Bytchkov, V. N., Cerini, L., Chapiro, A., Cicuttin, A., Colantoni, M., Colavita, A. A., Costa, S., Crespo, M. L., D'Hose, N., DALLA TORRE, S., Dasgupta, S. S., DE MASI, R., Dedek, N., Denisov, O. Y. U., Dhara, L., DIAZ KAVKA, V., Dinkelbach, A. M., Dolgopolov, A. V., Donskov, S. V., Dorofeev, V. A., Doshita, N., Duic, V., Dunnweber, W., Ehlers, J., Eversheim, P. D., Eyrich, W., Faessler, M., Falaleev, V., Fauland, P., Ferrero, A., Ferrero, L., Finger, M., Fischer, H., Franz, J., Friedrich, J. M., Frolov, V., Fuchs, U., Garfagnini, R., Gautheron, F., Gavrichtchouk, O. P., Gerassimov, S., Geyer, R., Giorgi, Marcello, Gobbo, B., Goertz, S., Gorin, A. M., Grajek, O. A., Grasso, A., Grube, B., Grunemaier, A., Hannappel, J., VON HARRACH, D., Hasegawa, T., Hedicke, S., Heinsius, F. H., Hermann, R., Hess, C., Hinterberger, F., VON HODENBERG, M., Horikawa, N., Horikawa, S., Ilgner, C., Ioukaev, A. I., Ishimoto, S., Ivanov, O., Iwata, T., Jahn, R., Janata, A., Joosten, R., Jouravlev, N. I., Kabuss, E., Kalinnikov, V., Kang, D., Karstens, F., Kastaun, W., Ketzer, B., Khaustov, G. V., Khokhlov, Y. U. A., Khomutov, N. V., Kisselev, Y. U., Klein, F., Koivuniemi, J. H., Kolosov, V. N., Komissarov, E. V., Kondo, K., Konigsmann, K., Konoplyannikov, A. K., Konorov, I., Konstantinov, V. F., Korentchenko, A. S., Korzenev, A., Kotzinian, A. M., Koutchinski, N. A., Kowalik, K., Kravchuk, N. P., Krivokhizhin, G. V., Kroumchtein, Z. V., Kuhn, R., Kunne, F., Kurek, K., Ladygin, M. E., Lamanna, M., LE GOFF, J. M., Leberig, M., Lichtenstadt, J., Liska, T., Ludwig, I., Maggiora, A., Maggiora, M., Magnon, A., Mallot, G. K., Manuilov, I. V., Marchand, C., Marroncle, J., Martin, Anna, Marzec, J., Matsuda, T., Maximov, A. N., Medved, K. S., Meyer, W., Mielech, A., Mikhailov, Y. U. V., Moinester, M. A., Nahle, O., Nassalski, J., Neliba, S., Neyret, D. P., Nikolaenko, V. I., Nozdrin, A. A., Obraztsov, V. F., Olshevsky, A. G., Ostrick, M., Padee, A., Pagano, P., Panebianco, S., Panzieri, D., Paul, S., Pereira, H. D., Peshekhonov, D. V., Peshekhonov, V. D., Piragino, G., Platchkov, S., Platzer, K., Pochodzalla, J., Polyakov, V. A., Popov, A. A., Pretz, J., Procureur, S., Quintans, C., Ramos, S., Rebourgeard, P. C., Reicherz, G., Reymann, J., Rozhdestvensky, A. M., Rondio, E., Sadovski, A. B., Saller, E., Samoylenko, V. D., Sandacz, A., Sapozhnikov, M. G., Savin, IGOR A., Schiavon, Paolo, Schill, C., Schmidt, T., Schmitt, H., Schmitt, L., Shevchenko, O. Y. U., Shishkin, A. A., Siebert, H. W., Sinha, L., Sissakian, A. N., Skachkova, A., Slunecka, M., Smirnov, G. I., Sozzi, F., Sugonyaev, V. P., Srnka, A., Stinzing, F., Stolarski, M., Sulc, M., Sulej, R., Takabayashi, N., Tchalishev, V. V., Tessarotto, F., Teufel, A., Tkatchev, L. G., Toeda, T., Tretyak, V. I., Trousov, S., Varanda, M., Virius, M., Vlassov, N. V., Wagner, M., Webb, R., Weise, E., Weitzel, Q., Wiesmann, M., Windmolders, R., Wirth, S., Wislicki, W., Zanetti, A. M., Zaremba, K., Zhao, J., Ziegler, R., Zvyagin, A., E. S., Ageev, Alexakhin, V. Y. U., Alexandrov, Y. U., G. D., Alexeev, A., Amoroso, B., Badelek, F., Balestra, J., Ball, G., Baum, Y., Bedfer, P., Berglund, C., Bernet, R., Bertini, R., Birsa, J., Bisplinghoff, P., Bordalo, Bradamante, Franco, Bressan, Andrea, G., Brona, E., Burtin, M. P., Bussa, V. N., Bytchkov, L., Cerini, A., Chapiro, A., Cicuttin, M., Colantoni, A. A., Colavita, S., Costa, M. L., Crespo, N., D'Hose, S., DALLA TORRE, S. S., Dasgupta, R., DE MASI, N., Dedek, Denisov, O. Y. U., L., Dhara, V., DIAZ KAVKA, A. M., Dinkelbach, A. V., Dolgopolov, S. V., Donskov, V. A., Dorofeev, N., Doshita, V., Duic, W., Dunnweber, J., Ehler, P. D., Eversheim, W., Eyrich, M., Faessler, V., Falaleev, P., Fauland, A., Ferrero, L., Ferrero, M., Finger, Jr, H., Fischer, J., Franz, J. M., Friedrich, V., Frolov, U., Fuch, R., Garfagnini, F., Gautheron, O. P., Gavrichtchouk, S., Gerassimov, R., Geyer, Giorgi, Marcello, B., Gobbo, S., Goertz, A. M., Gorin, O. A., Grajek, A., Grasso, B., Grube, A., Grunemaier, J., Hannappel, D., VON HARRACH, T., Hasegawa, S., Hedicke, F. H., Heinsiu, R., Hermann, C., He, F., Hinterberger, M., VON HODENBERG, N., Horikawa, S., Horikawa, C., Ilgner, A. I., Ioukaev, S., Ishimoto, O., Ivanov, T., Iwata, R., Jahn, A., Janata, R., Joosten, N. I., Jouravlev, E., Kabu, V., Kalinnikov, D., Kang, F., Karsten, W., Kastaun, B., Ketzer, G. V., Khaustov, Khokhlov, Y. U. A., N. V., Khomutov, Kisselev, Y. U., F., Klein, J. H., Koivuniemi, V. N., Kolosov, E. V., Komissarov, K., Kondo, K., Konigsmann, A. K., Konoplyannikov, I., Konorov, V. F., Konstantinov, A. S., Korentchenko, A., Korzenev, A. M., Kotzinian, N. A., Koutchinski, K., Kowalik, N. P., Kravchuk, G. V., Krivokhizhin, Z. V., Kroumchtein, R., Kuhn, F., Kunne, K., Kurek, M. E., Ladygin, M., Lamanna, J. M., LE GOFF, M., Leberig, J., Lichtenstadt, T., Liska, I., Ludwig, A., Maggiora, M., Maggiora, A., Magnon, G. K., Mallot, I. V., Manuilov, C., Marchand, J., Marroncle, Martin, Anna, J., Marzec, T., Matsuda, A. N., Maximov, K. S., Medved, W., Meyer, A., Mielech, Mikhailov, Y. U. V., M. A., Moinester, O., Nahle, J., Nassalski, S., Neliba, D. P., Neyret, V. I., Nikolaenko, A. A., Nozdrin, V. F., Obraztsov, A. G., Olshevsky, M., Ostrick, A., Padee, P., Pagano, S., Panebianco, D., Panzieri, S., Paul, H. D., Pereira, D. V., Peshekhonov, V. D., Peshekhonov, G., Piragino, S., Platchkov, K., Platzer, J., Pochodzalla, V. A., Polyakov, A. A., Popov, J., Pretz, S., Procureur, C., Quintan, S., Ramo, P. C., Rebourgeard, G., Reicherz, J., Reymann, A. M., Rozhdestvensky, E., Rondio, A. B., Sadovski, E., Saller, V. D., Samoylenko, A., Sandacz, M. G., Sapozhnikov, IGOR A., Savin, Schiavon, Paolo, C., Schill, T., Schmidt, H., Schmitt, L., Schmitt, Shevchenko, O. Y. U., A. A., Shishkin, H. W., Siebert, L., Sinha, A. N., Sissakian, A., Skachkova, M., Slunecka, G. I., Smirnov, F., Sozzi, V. P., Sugonyaev, A., Srnka, F., Stinzing, M., Stolarski, M., Sulc, R., Sulej, N., Takabayashi, V. V., Tchalishev, F., Tessarotto, A., Teufel, L. G., Tkatchev, T., Toeda, V. I., Tretyak, S., Trousov, M., Varanda, M., Viriu, N. V., Vlassov, M., Wagner, R., Webb, E., Weise, Q., Weitzel, M., Wiesmann, R., Windmolder, S., Wirth, W., Wislicki, A. M., Zanetti, K., Zaremba, J., Zhao, R., Ziegler, and A., Zvyagin

Subjects
Physics, Particle physics, Large Hadron Collider, Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Nuclear Theory, High Energy Physics::Phenomenology, Hyperon, FOS: Physical sciences, 01 natural sciences, Pentaquark, High Energy Physics - Experiment, Baryon, High Energy Physics - Experiment (hep-ex), Exotic baryon, Compass, 0103 physical sciences, COMPASS experiment, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

Narrow Xi-pi+- and Xi-bar+pi+- resonances produced by quasi-real photons have been searched for by the COMPASS experiment at CERN. The study was stimulated by the recent observation of an exotic baryonic state decaying into Xi-pi-, at a mass of 1862 MeV, interpreted as a pentaquark. While the ordinary hyperon states Xi(1530)^0 and Xi-bar(1530)^0 are clearly seen, no exotic baryon is observed in the data taken in 2002 and 2003., Comment: 10 pages, 5 figures

Published
2005
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10. Gluon polarization in the nucleon from quasi-real photoproduction of high-p hadron pairs

Author

AGEEV E. S, ALEXAKHIN V. YU, ALEXANDROV YU, ALEXEEV G. D, AMOROSO A, BADELEK B, BALESTRA E. S, BALESTRA F, BALL J, BAUM G, BEDFER Y, BERGLUND P, BERNET C, BERTINI R, BIRSA R, BISPLINGHOFF J, BORDALO P, BRAVAR A, BRONA G, BURTIN E, BUSSA M. P, BYTCHKOV V. N, CERINI L, CHAPIRO A, CICUTTIN A, COLANTONI M, COLAVITA A. A, COSTA S, CRESPO M. L, DALLA TORRE S, DASGUPTA S. S, DEDEK N, DE MASI R, DENISOV O. YU, DHARA L, DIAZ V, DINKELBACH A. M, DOLGOPOLOV A. V, DONSKOV S. V, DOROFEEV V. A, DOSHITA N, DÜNNWEBER W, EHLERS J, EVERSHEIM P. D, EYRICH W, FABRO M, FAESSLER M, FALALEEV V, FAULAND P, FERRERO A, FERRERO L, FINGER M, FINGER M. JR, FISCHER H, FRANZ J, FRIEDRICH J. M, FROLOV V, GARFAGNINI R, GAUTHERON F, GAVRICHTCHOUK O. P, GERASSIMOV S, GEYER R, GOBBO B, GOERTZ S, GORIN A. M, GRAJEK O. A, GRASSO A, GRUBE B, GRÜNEMAIER A, HANNAPPEL J, VON HARRACH D, HASEGAWA T, HEDICKE S, HEINSIUS F. H, HERMANN R, HESS C, HINTERBERGER F, VON HODENBERG M, HORIKAWA N, HORIKAWA S, D'HOSE N, IJADUOLA R. B, ILGNER C, IOUKAEV A. I, ISHIMOTO S, IVANOV O, IWATA T, JAHN R, JANATA A, JOOSTEN R, JOURAVLEV N. I, KABUSS E, KALINNIKOV V, KANG D, KARSTENS F, KASTAUN W, KETZER B, KHAUSTOV G. V, KHOKHLOV Y.U. A, KHOMUTOV N. V, KISSELEV YU, KLEIN F, KOBLITZ S, KOIVUNIEMI J. H, KOLOSOV V. N, KOMISSAROV E. V, KONDO K, KÖNIGSMANN K, KONOPLYANNIKOV A. K, KONOROV I, KONSTANTINOV V. F, KORENTCHENKO A. S, KORZENEV A, KOTZINIAN A. M, KOUTCHINSKI N. A, KOWALIK K, KRAVCHUK N. P, KRIVOKHIZHIN G. V, KROUMCHTEIN Z. V, KUHN R, KUNNE F, KUREK K, LADYGIN M. E, LAMANNA M, LEBERIG M, LE GOFF J. M, LICHTENSTADT J, LISKA T, LUDWIG I, MAGGIORA A, MAGGIORA M, MAGNON A, MALLOT G. K, MANUILOV I. V, MARCHAND C, MARRONCLE J, MARZEC J, MATSUDA T, MAXIMOV A. N, MEDVED K. S, MEYER W, MIELECH A, MIKHAILOV Y.U. V, MOINESTER M. A, NÄHLE O, NASSALSKI J, NELIBA S, NEYRET D. P, NIKOLAENKO V. I, NOZDRIN A. A, OBRAZTSOV V. F, OLSHEVSKY A. G, OSTRICK M, PADEE A, PANEBIANCO S, PANZIERI D, PAUL S, PEREIRA H. D, PESHEKHONOV D. V, PESHEKHONOV V. D, PIRAGINO G, PLATCHKOV S, PLATZER K, POCHODZALLA J, POLYAKOV V. A, POPOV A. A, PRETZ J, PROCUREUR S, QUINTANS C, RAMOS S, REBOURGEARD P. C, REICHERZ G, REYMANN J, RITH K, RONDIO E, ROZHDESTVENSKY A. M, SADOVSKI A. B, SALLER E, SAMOYLENKO V. D, SANDACZ A, SANS M, SAPOZHNIKOV M. G, SAVIN I. A, SCHILL C, SCHMIDT T, SCHMITT H, SCHMITT L, SHEVCHENKO O. YU, SHISHKIN A. A, SIEBERT H. W, SINHA L, SISSAKIAN A. N, SKACHKOVA A, SLUNECKA M, SMIRNOV G. I, SRNKA A, STINZING F, STOLARSKI M, SUGONYAEV V. P, SULC M, SULEJ R, TAKABAYASHI N, TCHALISHEV V. V, TESSAROTTO F, TEUFEL A, THERS D, TKATCHEV L. G, TOEDA T, TRETYAK V. I, TROUSOV S, VARANDA M, VIRIUS M, VLASSOV N. V, WAGNER M, WEBB R, WEISE E, WEITZEL Q, WIEDNER U, WIESMANN M, WINDMOLDERS R, WIRTH S, WISBLICKI W, ZANETTI A. M, ZAREMBA K, ZHAO J, ZIEGLER R, ZVYAGIN A., BRADAMANTE, FRANCO, BRESSAN, Andrea, DUIC, VENICIO, GIORGI, MARCELLO, MARTIN, ANNA, PAGANO, PAOLO, SCHIAVON, PAOLO, SOZZI, FEDERICA, AGEEV E., S, ALEXAKHIN V., Yu, Alexandrov, Yu, ALEXEEV G., D, Amoroso, A, Badelek, B, BALESTRA E., S, Balestra, F, Ball, J, Baum, G, Bedfer, Y, Berglund, P, Bernet, C, Bertini, R, Birsa, R, Bisplinghoff, J, Bordalo, P, Bradamante, Franco, Bravar, A, Bressan, Andrea, Brona, G, Burtin, E, BUSSA M., P, BYTCHKOV V., N, Cerini, L, Chapiro, A, Cicuttin, A, Colantoni, M, COLAVITA A., A, Costa, S, CRESPO M., L, DALLA TORRE, S, DASGUPTA S., S, Dedek, N, DE MASI, R, DENISOV O., Yu, Dhara, L, Diaz, V, DINKELBACH A., M, DOLGOPOLOV A., V, DONSKOV S., V, DOROFEEV V., A, Doshita, N, Duic, Venicio, Dünnweber, W, Ehlers, J, EVERSHEIM P., D, Eyrich, W, Fabro, M, Faessler, M, Falaleev, V, Fauland, P, Ferrero, A, Ferrero, L, Finger, M, FINGER M., Jr, Fischer, H, Franz, J, FRIEDRICH J., M, Frolov, V, Garfagnini, R, Gautheron, F, GAVRICHTCHOUK O., P, Gerassimov, S, Geyer, R, Giorgi, Marcello, Gobbo, B, Goertz, S, GORIN A., M, GRAJEK O., A, Grasso, A, Grube, B, Grünemaier, A, Hannappel, J, VON HARRACH, D, Hasegawa, T, Hedicke, S, HEINSIUS F., H, Hermann, R, Hess, C, Hinterberger, F, VON HODENBERG, M, Horikawa, N, Horikawa, S, D'Hose, N, IJADUOLA R., B, Ilgner, C, IOUKAEV A., I, Ishimoto, S, Ivanov, O, Iwata, T, Jahn, R, Janata, A, Joosten, R, JOURAVLEV N., I, Kabuss, E, Kalinnikov, V, Kang, D, Karstens, F, Kastaun, W, Ketzer, B, KHAUSTOV G., V, KHOKHLOV Y. U., A, KHOMUTOV N., V, Kisselev, Yu, Klein, F, Koblitz, S, KOIVUNIEMI J., H, KOLOSOV V., N, KOMISSAROV E., V, Kondo, K, Königsmann, K, KONOPLYANNIKOV A., K, Konorov, I, KONSTANTINOV V., F, KORENTCHENKO A., S, Korzenev, A, KOTZINIAN A., M, KOUTCHINSKI N., A, Kowalik, K, KRAVCHUK N., P, KRIVOKHIZHIN G., V, KROUMCHTEIN Z., V, Kuhn, R, Kunne, F, Kurek, K, LADYGIN M., E, Lamanna, M, Leberig, M, LE GOFF J., M, Lichtenstadt, J, Liska, T, Ludwig, I, Maggiora, A, Maggiora, M, Magnon, A, MALLOT G., K, MANUILOV I., V, Marchand, C, Marroncle, J, Martin, Anna, Marzec, J, Matsuda, T, MAXIMOV A., N, MEDVED K., S, Meyer, W, Mielech, A, MIKHAILOV Y. U., V, MOINESTER M., A, Nähle, O, Nassalski, J, Neliba, S, NEYRET D., P, NIKOLAENKO V., I, NOZDRIN A., A, OBRAZTSOV V., F, OLSHEVSKY A., G, Ostrick, M, Padee, A, Pagano, Paolo, Panebianco, S, Panzieri, D, Paul, S, PEREIRA H., D, PESHEKHONOV D., V, PESHEKHONOV V., D, Piragino, G, Platchkov, S, Platzer, K, Pochodzalla, J, POLYAKOV V., A, POPOV A., A, Pretz, J, Procureur, S, Quintans, C, Ramos, S, REBOURGEARD P., C, Reicherz, G, Reymann, J, Rith, K, Rondio, E, ROZHDESTVENSKY A., M, SADOVSKI A., B, Saller, E, SAMOYLENKO V., D, Sandacz, A, Sans, M, SAPOZHNIKOV M., G, SAVIN I., A, Schiavon, Paolo, Schill, C, Schmidt, T, Schmitt, H, Schmitt, L, SHEVCHENKO O., Yu, SHISHKIN A., A, SIEBERT H., W, Sinha, L, SISSAKIAN A., N, Skachkova, A, Slunecka, M, SMIRNOV G., I, Sozzi, Federica, Srnka, A, Stinzing, F, Stolarski, M, SUGONYAEV V., P, Sulc, M, Sulej, R, Takabayashi, N, TCHALISHEV V., V, Tessarotto, F, Teufel, A, Thers, D, TKATCHEV L., G, Toeda, T, TRETYAK V., I, Trousov, S, Varanda, M, Virius, M, VLASSOV N., V, Wagner, M, Webb, R, Weise, E, Weitzel, Q, Wiedner, U, Wiesmann, M, Windmolders, R, Wirth, S, Wisblicki, W, ZANETTI A., M, Zaremba, K, Zhao, J, Ziegler, R, and Zvyagin, A.

Subjects
dis, high pt hadrons, Gluon polarisation, di, COMPASS
Abstract

We present a determination of the gluon polarization DeltaG/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q2 < 1 (GeV/c)2, with a pair of large transverse-momentum hadrons in the final state. The data were obtained by the COMPASS experiment at CERN using a 160 GeV polarized muon beam scattered on a polarized 6LiD target. The helicity asymmetry for the selected events is A/D = 0.002 ± 0.019(stat) ± 0.003(syst). From this value, we obtain in a leading-order QCD analysis DeltaG/G = 0.024 ± 0.089(stat) ± 0.057(syst) at xg = 0.095 and μ2 ~ 3 (GeV/c)2.

Published
2006

13. Spin asymmetry $A^d_1$ and the spin-dependent structure function $g^d_1$ of the deuteron at low values of $x$ and $Q^2$

Author

Ageev, E.S., Alexakhin, V.Yu., Alexandrov, Yu., Alexeev, G.D., Amoroso, A., Badelek, B., Balestra, F., Ball, J., Baum, G., Bedfer, Y., Berglund, P., Bernet, C., Bertini, R., Birsa, R., Bisplinghoff, J., Bordalo, P., Bradamante, F., Bravar, A., Bressan, A., Burtin, E., Bussa, M.P., Bytchkov, V.N., Cerini, L., Chapiro, A., Cicuttin, A., Colantoni, M., Colavita, A.A., Costa, S., Crespo, M.L., d'Hose, N., Dalla Torre, S., Dasgupta, S.S., De Masi, R., Dedek, N., Denisov, O.Yu., Dhara, L., Diaz Kavka, V., Dinkelbach, A.M., Dolgopolov, A.V., Donskov, S.V., Dorofeev, V.A., Doshita, N., Duic, V., Dunnweber, W., Ehlers, J., Eversheim, P.D., Eyrich, W., Fabro, M., Faessler, M., Falaleev, V., Fauland, P., Ferrero, A., Ferrero, L., Finger, M., Finger, M., Jr., Fischer, H., Franz, J., Friedrich, J.M., Frolov, V., Fuchs, U., Garfagnini, R., Gautheron, F., Gavrichtchouk, O.P., Gerassimov, S., Geyer, R., Giorgi, M., Gobbo, B., Goertz, S., Gorin, A.M., Grajek, O.A., Grasso, A., Grube, B., Grunemaier, A., Hannappel, J., von Harrach, D., Hasegawa, T., Hedicke, S., Heinsius, F.H., Hermann, R., He, C., Hinterberger, F., von Hodenberg, M., Horikawa, N., Horikawa, S., Ijaduola, R.B., Ilgner, C., Ioukaev, A.I., Ishimoto, S., Ivanov, O., Iwata, T., Jahn, R., Janata, A., Joosten, R., Jouravlev, N.I., Kabuss, E., Kalinnikov, V., Kang, D., Karstens, F., Kastaun, W., Ketzer, B., Khaustov, G.V., Khokhlov, Yu.A., Khomutov, N.V., Kisselev, Yu., Klein, F., Koblitz, S., Koivuniemi, J.H., Kolosov, V.N., Komissarov, E.V., Kondo, K., Konigsmann, Kay, Konoplyannikov, A.K., Konorov, I., Konstantinov, V.F., Korentchenko, A.S., Korzenev, A., Kotzinian, A.M., Koutchinski, N.A., Kowalik, K., Kravchuk, N.P., Krivokhizhin, G.V., Kroumchtein, Z.V., Kuhn, R., Kunne, F., Kurek, K., Ladygin, M.E., Lamanna, M., Le Goff, J.M., Leberig, M., Lichtenstadt, J., Liska, T., Ludwig, I., Maggiora, A., Maggiora, M., Magnon, A., Mallot, G.K., Manuilov, I.V., Marchand, C., Marroncle, J., Martin, A., Marzec, J., Matsuda, T., Maximov, A.N., Medved, K.S., Meyer, W., Mielech, A., Mikhailov, Yu.V., Moinester, M.A., Nahle, O., Nassalski, J., Neliba, S., Neyret, D.P., Nikolaenko, V.I., Nozdrin, A.A., Obraztsov, V.F., Olshevsky, A.G., Ostrick, M., Padee, A., Pagano, P., Panebianco, S., Panzieri, D., Paul, S., Pereira, H.D., Peshekhonov, D.V., Peshekhonov, V.D., Piragino, G., Platchkov, S., Platzer, K., Pochodzalla, J., Polyakov, V.A., Popov, A.A., Pretz, J., Quintans, C., Ramos, S., Rebourgeard, P.C., Reicherz, G., Reymann, J., Rith, K., Rozhdestvensky, A.M., Rondio, E., Sadovski, A.B., Saller, E., Samoylenko, V.D., Sandacz, A., Sans, M., Sapozhnikov, M.G., Savin, Igor A., Schiavon, P., Schill, C., Schmidt, T., Schmitt, H., Schmitt, L., Shevchenko, O.Yu., Shishkin, A.A., Siebert, H.-W., Sinha, L., Sissakian, A.N., Skachkova, A., Slunecka, M., Smirnov, G.I., Sozzi, F., Sugonyaev, V.P., Srnka, A., Stinzing, F., Stolarski, M., Sulc, M., Sulej, R., Takabayashi, N., Tchalishev, V.V., Tessarotto, F., Teufel, A., Thers, D., Tkatchev, L.G., Toeda, T., Tretyak, V.I., Trusov, Sergey V., Varanda, M., Virius, M., Vlassov, N.V., Wagner, M., Webb, R., Weise, E., Weitzel, Q., Wiedner, U., Wiesmann, M., Windmolders, R., Wirth, S., Wislicki, W., Zanetti, A.M., Zaremba, K., Zhao, J., Ziegler, R., and Zvyagin, A.

Subjects
Particle Physics - Experiment
Abstract

We present a precise measurement of the deuteron longitudinal spin asymmetry $A_1^d$ and of the deuteron spin-dependent structure function $g_1^d$ at $Q^2 < $ 1~(GeV/$c$)$^2$ and $4\cdot$10$^{-5} < x < $~2.5$\cdot$10$^{-2}$ based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured $A_1^d$ and $g_1^d$ are found to be consistent with zero in the whole range of $x$. We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x. We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x. We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x. We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x. We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x. We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x. We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. The measured A_1^d and g_1^d are found to be consistent with zero in the whole range of x. We present a precise measurement of the deuteron longitudinal spin asymmetry A1d and of the deuteron spin-dependent structure function g1d at Q2

Published
2006

14. Gluon polarization in the nucleon from quasi-real photoproduction of high-p(T) hadron pairs

Author

Ageev, E. S., Alexakhin, V. Y. U., Alexandrov, Y. U., Alexeev, G. D., Amoroso, Antonio, Badelek, B., Balestra, Ferruccio, Ball, J., Baum, G., Bedfer, Y., Berglund, P., Bertini, Raimondo Pietro, Birsa, R., Bisplinghoff, J., Bradamante, F., Bravar, A., Bressan, A., Brona, G., Burtin, E., Bussa, Maria Pia, Bytchkov, V. N., Cerini, L., Chapiro, A., Cicuttin, A., Colantoni, M., Colavita, A. A., Costa, Sergio, Crespo, M. L., DALLA TORRE, S., Dasgupta, S. S., Dedek, N., DE MASI, R., Denisov, O., Dhara, L., Diaz, V., Dinkelbach, A. M., Dolgopolov, A. V., Donskov, S. V., Dorofeev, V. A., Duic, V., Eversheim, P. D., Eyrich, W., Fabro, M., Faessler, M., Falaleev, V., Fauland, P., Ferrero, Andrea, Ferrero, Livio, Finger, M., Fischer, H., Franz, J., Friedrich, J. M., Frolov, Vladimir, Garfagnini, Raffaello, Gautheron, F., Gavrichtchouk, O. P., Geyer, R., Giorgi, M., Gobbo, B., Gorin, A. M., Grajek, O. A., Grasso, Antonino, Grube, B., Hannappel, J., VON HARRACH, D., Hasegawa, T., Hedicke, S., Hermann, R., Hinterberger, F., VON HODENBERG, M., Horikawa, N., D'Hose, N., Ijaduola, R. B., Ilgner, C., Ioukaev, A. I., Ishimoto, S., Ivanov, O., Iwata, T., Jahn, R., Janata, A., Joosten, R., Jouravlev, N. I., Kalinnikov, V., Kang, D., Karstens, F., Kastaun, W., Ketzer, B., Khaustov, G. V., Khokhlov, Y. U. A., Khomutov, N. V., Klein, F., Koblitz, S., Kolosov, V. N., Komissarov, E. V., Konoplyannikov, A. K., Konstantinov, V. F., Korentchenko, A. S., Kotzinian, Aram, Koutchinski, N. A., Kowalik, K., Kravchuk, N. P., Krivokhizhin, G. V., Kroumchtein, Z. V., Kuhn, R., Kunne, F., Kurek, K., Ladygin, M. E., LE GOFF, J. M., Lichtenstadt, J., Liska, T., Ludwig, I., Maggiora, A., Maggiora, Marco, Magnon, A., Mallot, G. K., Manuilov, I. V., Marchand, C., Marroncle, J., Martin, A., Marzec, J., Matsuda, T., Maximov, A. N., Medved, K. S., Meyer, W., Mikhailov, Y. U. V., Moinester, M. A., Nassalski, J., Neliba, S., Neyret, D. P., Nikolaenko, V. I., Nozdrin, A. A., Obraztsov, V. F., Olshevsky, A. G., Ostrick, M., Padee, A., Pagano, P., Panebianco, S., Panzieri, Daniele, Paul, S., Peshekhonov, D. V., Peshekhonov, V. D., Piragino, Guido, Platchkov, S., Platzer, K., Pochodzalla, J., Polyakov, V. A., Popov, A. A., Procureur, S., Quintans, C., Rebourgeard, P. C., Reicherz, G., Reymann, J., Rondio, E., Rozhdestvensky, A. M., Sadovski, A. B., Saller, E., Samoylenko, V. D., Sandacz, A., Sans, M., Sapozhnikov, M. G., Savin, I. A., Schiavon, P., Schill, C., Schmidt, T., Schmitt, H., Shevchenko, O. Y. U., Shishkin, A. A., Siebert, H. W., Sinha, L., Sissakian, A. N., Skachkova, A., Slunecka, M., Smirnov, G. I., Sozzi, F., Srnka, A., Stinzing, F., Stolarski, M., Sugonyaev, V. P., Sulc, M., Sulej, R., Takabayashi, N., Tchalishev, V. V., Tessarotto, F., Teufel, A., Thers, D., Tkatchev, L. G., Toeda, T., Tretyak, V. I., Trousov, S., Varanda, M., Virius, M., Vlassov, N. V., Wagner, M., Webb, R., Weise, E., Weitzel, Q., Wiedner, U., Wiesmann, M., Windmolders, R., Wirth, S., Wislicki, W., Zanetti, A. M., Zaremba, K., Zhao, J., Ziegler, R., and Zvyagin, A.

Published
2006

18. Gluon polarization in the nucleon from quasi-real photoproduction of high-pT hadron pairs

Author

Ageev, E.S., primary, Alexakhin, V.Yu., additional, Alexandrov, Yu., additional, Alexeev, G.D., additional, Amoroso, A., additional, Badelek, B., additional, Balestra, F., additional, Ball, J., additional, Baum, G., additional, Bedfer, Y., additional, Berglund, P., additional, Bernet, C., additional, Bertini, R., additional, Birsa, R., additional, Bisplinghoff, J., additional, Bordalo, P., additional, Bradamante, F., additional, Bravar, A., additional, Bressan, A., additional, Brona, G., additional, Burtin, E., additional, Bussa, M.P., additional, Bytchkov, V.N., additional, Cerini, L., additional, Chapiro, A., additional, Cicuttin, A., additional, Colantoni, M., additional, Colavita, A.A., additional, Costa, S., additional, Crespo, M.L., additional, Dalla Torre, S., additional, Dasgupta, S.S., additional, Dedek, N., additional, De Masi, R., additional, Denisov, O.Yu., additional, Dhara, L., additional, Diaz, V., additional, Dinkelbach, A.M., additional, Dolgopolov, A.V., additional, Donskov, S.V., additional, Dorofeev, V.A., additional, Doshita, N., additional, Duic, V., additional, Dünnweber, W., additional, Ehlers, J., additional, Eversheim, P.D., additional, Eyrich, W., additional, Fabro, M., additional, Faessler, M., additional, Falaleev, V., additional, Fauland, P., additional, Ferrero, A., additional, Ferrero, L., additional, Finger, M., additional, Fischer, H., additional, Franz, J., additional, Friedrich, J.M., additional, Frolov, V., additional, Garfagnini, R., additional, Gautheron, F., additional, Gavrichtchouk, O.P., additional, Gerassimov, S., additional, Geyer, R., additional, Giorgi, M., additional, Gobbo, B., additional, Goertz, S., additional, Gorin, A.M., additional, Grajek, O.A., additional, Grasso, A., additional, Grube, B., additional, Grünemaier, A., additional, Hannappel, J., additional, von Harrach, D., additional, Hasegawa, T., additional, Hedicke, S., additional, Heinsius, F.H., additional, Hermann, R., additional, Heß, C., additional, Hinterberger, F., additional, von Hodenberg, M., additional, Horikawa, N., additional, Horikawa, S., additional, d'Hose, N., additional, Ijaduola, R.B., additional, Ilgner, C., additional, Ioukaev, A.I., additional, Ishimoto, S., additional, Ivanov, O., additional, Iwata, T., additional, Jahn, R., additional, Janata, A., additional, Joosten, R., additional, Jouravlev, N.I., additional, Kabuß, E., additional, Kalinnikov, V., additional, Kang, D., additional, Karstens, F., additional, Kastaun, W., additional, Ketzer, B., additional, Khaustov, G.V., additional, Khokhlov, Yu.A., additional, Khomutov, N.V., additional, Kisselev, Yu., additional, Klein, F., additional, Koblitz, S., additional, Koivuniemi, J.H., additional, Kolosov, V.N., additional, Komissarov, E.V., additional, Kondo, K., additional, Königsmann, K., additional, Konoplyannikov, A.K., additional, Konorov, I., additional, Konstantinov, V.F., additional, Korentchenko, A.S., additional, Korzenev, A., additional, Kotzinian, A.M., additional, Koutchinski, N.A., additional, Kowalik, K., additional, Kravchuk, N.P., additional, Krivokhizhin, G.V., additional, Kroumchtein, Z.V., additional, Kuhn, R., additional, Kunne, F., additional, Kurek, K., additional, Ladygin, M.E., additional, Lamanna, M., additional, Leberig, M., additional, Le Goff, J.M., additional, Lichtenstadt, J., additional, Liska, T., additional, Ludwig, I., additional, Maggiora, A., additional, Maggiora, M., additional, Magnon, A., additional, Mallot, G.K., additional, Manuilov, I.V., additional, Marchand, C., additional, Marroncle, J., additional, Martin, A., additional, Marzec, J., additional, Matsuda, T., additional, Maximov, A.N., additional, Medved, K.S., additional, Meyer, W., additional, Mielech, A., additional, Mikhailov, Yu.V., additional, Moinester, M.A., additional, Nähle, O., additional, Nassalski, J., additional, Neliba, S., additional, Neyret, D.P., additional, Nikolaenko, V.I., additional, Nozdrin, A.A., additional, Obraztsov, V.F., additional, Olshevsky, A.G., additional, Ostrick, M., additional, Padee, A., additional, Pagano, P., additional, Panebianco, S., additional, Panzieri, D., additional, Paul, S., additional, Pereira, H.D., additional, Peshekhonov, D.V., additional, Peshekhonov, V.D., additional, Piragino, G., additional, Platchkov, S., additional, Platzer, K., additional, Pochodzalla, J., additional, Polyakov, V.A., additional, Popov, A.A., additional, Pretz, J., additional, Procureur, S., additional, Quintans, C., additional, Ramos, S., additional, Rebourgeard, P.C., additional, Reicherz, G., additional, Reymann, J., additional, Rith, K., additional, Rondio, E., additional, Rozhdestvensky, A.M., additional, Sadovski, A.B., additional, Saller, E., additional, Samoylenko, V.D., additional, Sandacz, A., additional, Sans, M., additional, Sapozhnikov, M.G., additional, Savin, I.A., additional, Schiavon, P., additional, Schill, C., additional, Schmidt, T., additional, Schmitt, H., additional, Schmitt, L., additional, Shevchenko, O.Yu., additional, Shishkin, A.A., additional, Siebert, H.-W., additional, Sinha, L., additional, Sissakian, A.N., additional, Skachkova, A., additional, Slunecka, M., additional, Smirnov, G.I., additional, Sozzi, F., additional, Srnka, A., additional, Stinzing, F., additional, Stolarski, M., additional, Sugonyaev, V.P., additional, Sulc, M., additional, Sulej, R., additional, Takabayashi, N., additional, Tchalishev, V.V., additional, Tessarotto, F., additional, Teufel, A., additional, Thers, D., additional, Tkatchev, L.G., additional, Toeda, T., additional, Tretyak, V.I., additional, Trousov, S., additional, Varanda, M., additional, Virius, M., additional, Vlassov, N.V., additional, Wagner, M., additional, Webb, R., additional, Weise, E., additional, Weitzel, Q., additional, Wiedner, U., additional, Wiesmann, M., additional, Windmolders, R., additional, Wirth, S., additional, Wiślicki, W., additional, Zanetti, A.M., additional, Zaremba, K., additional, Zhao, J., additional, Ziegler, R., additional, and Zvyagin, A., additional

Published
2006
Full Text
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19. First Measurement of the Transverse Spin Asymmetries of the Deuteron in Semi-inclusive Deep Inelastic Scattering

Author

Alexakhin, V. Yu., primary, Alexandrov, Yu., additional, Alexeev, G. D., additional, Amoroso, A., additional, Badełek, B., additional, Balestra, F., additional, Ball, J., additional, Baum, G., additional, Bedfer, Y., additional, Berglund, P., additional, Bernet, C., additional, Bertini, R., additional, Birsa, R., additional, Bisplinghoff, J., additional, Bradamante, F., additional, Bravar, A., additional, Bressan, A., additional, Burtin, E., additional, Bussa, M. P., additional, Cerini, L., additional, Chapiro, A., additional, Cicuttin, A., additional, Colantoni, M., additional, Colavita, A. A., additional, Costa, S., additional, Crespo, M. L., additional, d’Hose, N., additional, Dalla Torre, S., additional, Dasgupta, S. S., additional, De Masi, R., additional, Dedek, N., additional, Denisov, O. Yu., additional, Dhara, L., additional, Diaz Kavka, V., additional, Dolgopolov, A. V., additional, Donskov, S. V., additional, Dorofeev, V. A., additional, Doshita, N., additional, Duic, V., additional, Dünnweber, W., additional, Efremov, A., additional, Ehlers, J., additional, Eversheim, P. D., additional, Eyrich, W., additional, Fabro, M., additional, Faessler, M., additional, Fauland, P., additional, Ferrero, A., additional, Ferrero, L., additional, Finger, M., additional, Fischer, H., additional, Franz, J., additional, Friedrich, J. M., additional, Frolov, V., additional, Fuchs, U., additional, Garfagnini, R., additional, Gautheron, F., additional, Gavrichtchouk, O. P., additional, Gerassimov, S., additional, Geyer, R., additional, Giorgi, M., additional, Gobbo, B., additional, Goertz, S., additional, Grajek, O. A., additional, Grasso, A., additional, Grube, B., additional, Grünemaier, A., additional, Gustafsson, K., additional, Hannappel, J., additional, von Harrach, D., additional, Hasegawa, T., additional, Hedicke, S., additional, Heinsius, F. H., additional, Hinterberger, F., additional, von Hodenberg, M., additional, Horikawa, N., additional, Horikawa, S., additional, Ijaduola, R. B., additional, Ilgner, C., additional, Ishimoto, S., additional, Iwata, T., additional, Jahn, R., additional, Janata, A., additional, Joosten, R., additional, Jouravlev, N. I., additional, Kabuß, E., additional, Kalinnikov, V., additional, Kang, D., additional, Karstens, F., additional, Kastaun, W., additional, Ketzer, B., additional, Khaustov, G. V., additional, Khokhlov, Yu. A., additional, Kisselev, Yu., additional, Klein, F., additional, Koivuniemi, J. H., additional, Kolosov, V. N., additional, Komissarov, E. V., additional, Kondo, K., additional, Königsmann, K., additional, Konoplyannikov, A. K., additional, Konorov, I., additional, Konstantinov, V. F., additional, Korentchenko, A. S., additional, Korzenev, A., additional, Kotzinian, A. M., additional, Koutchinski, N. A., additional, Kowalik, K., additional, Kravchuk, N. P., additional, Krivokhizhin, G. V., additional, Kroumchtein, Z. V., additional, Kuhn, R., additional, Kunne, F., additional, Kurek, K., additional, Lamanna, M., additional, Le Goff, J. M., additional, Leberig, M., additional, Lichtenstadt, J., additional, Maggiora, A., additional, Maggiora, M., additional, Magnon, A., additional, Mallot, G. K., additional, Manuilov, I. V., additional, Marchand, C., additional, Marroncle, J., additional, Martin, A., additional, Marzec, J., additional, Matsuda, T., additional, Maximov, A. N., additional, Medved, K. S., additional, Meyer, W., additional, Mielech, A., additional, Mikhailov, Yu. V., additional, Moinester, M. A., additional, Nähle, O., additional, Nassalski, J., additional, Neyret, D. P., additional, Nikolaenko, V. I., additional, Nozdrin, A. A., additional, Obraztsov, V. F., additional, Olshevsky, A. G., additional, Ostrick, M., additional, Padee, A., additional, Pagano, P., additional, Panebianco, S., additional, Panzieri, D., additional, Paul, S., additional, Pereira, H. D., additional, Peshekhonov, D. V., additional, Peshekhonov, V. D., additional, Piragino, G., additional, Platchkov, S., additional, Platzer, K., additional, Pochodzalla, J., additional, Polyakov, V. A., additional, Popov, A. A., additional, Pretz, J., additional, Rebourgeard, P. C., additional, Reicherz, G., additional, Reymann, J., additional, Rozhdestvensky, A. M., additional, Rondio, E., additional, Sadovski, A. B., additional, Saller, E., additional, Samoylenko, V. D., additional, Sandacz, A., additional, Sans, M., additional, Sapozhnikov, M. G., additional, Savin, I. A., additional, Schiavon, P., additional, Schmidt, T., additional, Schmitt, H., additional, Schmitt, L., additional, Shishkin, A. A., additional, Siebert, H., additional, Sinha, L., additional, Sissakian, A. N., additional, Skachkova, A., additional, Slunecka, M., additional, Smirnov, G. I., additional, Sugonyaev, V. P., additional, Stinzing, F., additional, Sulej, R., additional, Takabayashi, N., additional, Tchalishev, V. V., additional, Tessarotto, F., additional, Teufel, A., additional, Thers, D., additional, Tkatchev, L. G., additional, Toeda, T., additional, Tretyak, V. I., additional, Trousov, S., additional, Vlassov, N. V., additional, Webb, R., additional, Weise, E., additional, Wiesmann, M., additional, Windmolders, R., additional, Wirth, S., additional, Wiślicki, W., additional, Zanetti, A. M., additional, Zaremba, K., additional, Zhao, J., additional, Ziegler, R., additional, and Zvyagin, A., additional

Published
2005
Full Text
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20. Measurement of the spin structure of the deuteron in the DIS region

Author

Ageev, E.S., primary, Alexakhin, V.Yu., additional, Alexandrov, Yu., additional, Alexeev, G.D., additional, Amoroso, A., additional, Badełek, B., additional, Balestra, F., additional, Ball, J., additional, Baum, G., additional, Bedfer, Y., additional, Berglund, P., additional, Bernet, C., additional, Bertini, R., additional, Birsa, R., additional, Bisplinghoff, J., additional, Bordalo, P., additional, Bradamante, F., additional, Bravar, A., additional, Bressan, A., additional, Burtin, E., additional, Bussa, M.P., additional, Bytchkov, V.N., additional, Cerini, L., additional, Chapiro, A., additional, Cicuttin, A., additional, Colantoni, M., additional, Colavita, A.A., additional, Costa, S., additional, Crespo, M.L., additional, d'Hose, N., additional, Dalla Torre, S., additional, Dasgupta, S.S., additional, De Masi, R., additional, Dedek, N., additional, Denisov, O.Yu., additional, Dhara, L., additional, Diaz Kavka, V., additional, Dinkelbach, A.M., additional, Dolgopolov, A.V., additional, Donskov, S.V., additional, Dorofeev, V.A., additional, Doshita, N., additional, Duic, V., additional, Dünnweber, W., additional, Ehlers, J., additional, Eversheim, P.D., additional, Eyrich, W., additional, Fabro, M., additional, Faessler, M., additional, Falaleev, V., additional, Fauland, P., additional, Ferrero, A., additional, Ferrero, L., additional, Finger, M., additional, Fischer, H., additional, Franz, J., additional, Friedrich, J.M., additional, Frolov, V., additional, Fuchs, U., additional, Garfagnini, R., additional, Gautheron, F., additional, Gavrichtchouk, O.P., additional, Gerassimov, S., additional, Geyer, R., additional, Giorgi, M., additional, Gobbo, B., additional, Goertz, S., additional, Gorin, A.M., additional, Grajek, O.A., additional, Grasso, A., additional, Grube, B., additional, Grünemaier, A., additional, Hannappel, J., additional, von Harrach, D., additional, Hasegawa, T., additional, Hedicke, S., additional, Heinsius, F.H., additional, Hermann, R., additional, Heß, C., additional, Hinterberger, F., additional, von Hodenberg, M., additional, Horikawa, N., additional, Horikawa, S., additional, Ijaduola, R.B., additional, Ilgner, C., additional, Ioukaev, A.I., additional, Ishimoto, S., additional, Ivanov, O., additional, Iwata, T., additional, Jahn, R., additional, Janata, A., additional, Joosten, R., additional, Jouravlev, N.I., additional, Kabuß, E., additional, Kalinnikov, V., additional, Kang, D., additional, Karstens, F., additional, Kastaun, W., additional, Ketzer, B., additional, Khaustov, G.V., additional, Khokhlov, Yu.A., additional, Khomutov, N.V., additional, Kisselev, Yu., additional, Klein, F., additional, Koblitz, S., additional, Koivuniemi, J.H., additional, Kolosov, V.N., additional, Komissarov, E.V., additional, Kondo, K., additional, Königsmann, K., additional, Konoplyannikov, A.K., additional, Konorov, I., additional, Konstantinov, V.F., additional, Korentchenko, A.S., additional, Korzenev, A., additional, Kotzinian, A.M., additional, Koutchinski, N.A., additional, Kowalik, K., additional, Kravchuk, N.P., additional, Krivokhizhin, G.V., additional, Kroumchtein, Z.V., additional, Kuhn, R., additional, Kunne, F., additional, Kurek, K., additional, Ladygin, M.E., additional, Lamanna, M., additional, Le Goff, J.M., additional, Leberig, M., additional, Lichtenstadt, J., additional, Liska, T., additional, Ludwig, I., additional, Maggiora, A., additional, Maggiora, M., additional, Magnon, A., additional, Mallot, G.K., additional, Manuilov, I.V., additional, Marchand, C., additional, Marroncle, J., additional, Martin, A., additional, Marzec, J., additional, Matsuda, T., additional, Maximov, A.N., additional, Medved, K.S., additional, Meyer, W., additional, Mielech, A., additional, Mikhailov, Yu.V., additional, Moinester, M.A., additional, Nähle, O., additional, Nassalski, J., additional, Neliba, S., additional, Neyret, D.P., additional, Nikolaenko, V.I., additional, Nozdrin, A.A., additional, Obraztsov, V.F., additional, Olshevsky, A.G., additional, Ostrick, M., additional, Padee, A., additional, Pagano, P., additional, Panebianco, S., additional, Panzieri, D., additional, Paul, S., additional, Pereira, H.D., additional, Peshekhonov, D.V., additional, Peshekhonov, V.D., additional, Piragino, G., additional, Platchkov, S., additional, Platzer, K., additional, Pochodzalla, J., additional, Polyakov, V.A., additional, Popov, A.A., additional, Pretz, J., additional, Quintans, C., additional, Ramos, S., additional, Rebourgeard, P.C., additional, Reicherz, G., additional, Reymann, J., additional, Rith, K., additional, Rozhdestvensky, A.M., additional, Rondio, E., additional, Sadovski, A.B., additional, Saller, E., additional, Samoylenko, V.D., additional, Sandacz, A., additional, Sans, M., additional, Sapozhnikov, M.G., additional, Savin, I.A., additional, Schiavon, P., additional, Schill, C., additional, Schmidt, T., additional, Schmitt, H., additional, Schmitt, L., additional, Shevchenko, O.Yu., additional, Shishkin, A.A., additional, Siebert, H.-W., additional, Sinha, L., additional, Sissakian, A.N., additional, Skachkova, A., additional, Slunecka, M., additional, Smirnov, G.I., additional, Sozzi, F., additional, Sugonyaev, V.P., additional, Srnka, A., additional, Stinzing, F., additional, Stolarski, M., additional, Sulc, M., additional, Sulej, R., additional, Takabayashi, N., additional, Tchalishev, V.V., additional, Tessarotto, F., additional, Teufel, A., additional, Thers, D., additional, Tkatchev, L.G., additional, Toeda, T., additional, Tretyak, V.I., additional, Trousov, S., additional, Varanda, M., additional, Virius, M., additional, Vlassov, N.V., additional, Wagner, M., additional, Webb, R., additional, Weise, E., additional, Weitzel, Q., additional, Wiedner, U., additional, Wiesmann, M., additional, Windmolders, R., additional, Wirth, S., additional, Wiślicki, W., additional, Zanetti, A.M., additional, Zaremba, K., additional, Zhao, J., additional, Ziegler, R., additional, and Zvyagin, A., additional

Published
2005
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21. Gluon polarization in the nucleon from quasi-real photoproduction of high-[formula omitted] hadron pairs

Author

Ageev, E.S., Alexakhin, V.Yu., Alexandrov, Yu., Alexeev, G.D., Amoroso, A., Badelek, B., Balestra, F., Ball, J., Baum, G., Bedfer, Y., Berglund, P., Bernet, C., Bertini, R., Birsa, R., Bisplinghoff, J., Bordalo, P., Bradamante, F., Bravar, A., Bressan, A., Brona, G., Burtin, E., Bussa, M.P., Bytchkov, V.N., Cerini, L., Chapiro, A., Cicuttin, A., Colantoni, M., Colavita, A.A., Costa, S., Crespo, M.L., Dalla Torre, S., Dasgupta, S.S., Dedek, N., De Masi, R., Denisov, O.Yu., Dhara, L., Diaz, V., Dinkelbach, A.M., Dolgopolov, A.V., Donskov, S.V., Dorofeev, V.A., Doshita, N., Duic, V., Dünnweber, W., Ehlers, J., Eversheim, P.D., Eyrich, W., Fabro, M., Faessler, M., Falaleev, V., Fauland, P., Ferrero, A., Ferrero, L., Finger, M., Finger, M., Jr., Fischer, H., Franz, J., Friedrich, J.M., Frolov, V., Garfagnini, R., Gautheron, F., Gavrichtchouk, O.P., Gerassimov, S., Geyer, R., Giorgi, M., Gobbo, B., Goertz, S., Gorin, A.M., Grajek, O.A., Grasso, A., Grube, B., Grünemaier, A., Hannappel, J., von Harrach, D., Hasegawa, T., Hedicke, S., Heinsius, F.H., Hermann, R., Heß, C., Hinterberger, F., von Hodenberg, M., Horikawa, N., Horikawa, S., d'Hose, N., Ijaduola, R.B., Ilgner, C., Ioukaev, A.I., Ishimoto, S., Ivanov, O., Iwata, T., Jahn, R., Janata, A., Joosten, R., Jouravlev, N.I., Kabuß, E., Kalinnikov, V., Kang, D., Karstens, F., Kastaun, W., Ketzer, B., Khaustov, G.V., Khokhlov, Yu.A., Khomutov, N.V., Kisselev, Yu., Klein, F., Koblitz, S., Koivuniemi, J.H., Kolosov, V.N., Komissarov, E.V., Kondo, K., Königsmann, K., Konoplyannikov, A.K., Konorov, I., Konstantinov, V.F., Korentchenko, A.S., Korzenev, A., Kotzinian, A.M., Koutchinski, N.A., Kowalik, K., Kravchuk, N.P., Krivokhizhin, G.V., Kroumchtein, Z.V., Kuhn, R., Kunne, F., Kurek, K., Ladygin, M.E., Lamanna, M., Leberig, M., Le Goff, J.M., Lichtenstadt, J., Liska, T., Ludwig, I., Maggiora, A., Maggiora, M., Magnon, A., Mallot, G.K., Manuilov, I.V., Marchand, C., Marroncle, J., Martin, A., Marzec, J., Matsuda, T., Maximov, A.N., Medved, K.S., Meyer, W., Mielech, A., Mikhailov, Yu.V., Moinester, M.A., Nähle, O., Nassalski, J., Neliba, S., Neyret, D.P., Nikolaenko, V.I., Nozdrin, A.A., Obraztsov, V.F., Olshevsky, A.G., Ostrick, M., Padee, A., Pagano, P., Panebianco, S., Panzieri, D., Paul, S., Pereira, H.D., Peshekhonov, D.V., Peshekhonov, V.D., Piragino, G., Platchkov, S., Platzer, K., Pochodzalla, J., Polyakov, V.A., Popov, A.A., Pretz, J., Procureur, S., Quintans, C., Ramos, S., Rebourgeard, P.C., Reicherz, G., Reymann, J., Rith, K., Rondio, E., Rozhdestvensky, A.M., Sadovski, A.B., Saller, E., Samoylenko, V.D., Sandacz, A., Sans, M., Sapozhnikov, M.G., Savin, I.A., Schiavon, P., Schill, C., Schmidt, T., Schmitt, H., Schmitt, L., Shevchenko, O.Yu., Shishkin, A.A., Siebert, H.-W., Sinha, L., Sissakian, A.N., Skachkova, A., Slunecka, M., Smirnov, G.I., Sozzi, F., Srnka, A., Stinzing, F., Stolarski, M., Sugonyaev, V.P., Sulc, M., Sulej, R., Takabayashi, N., Tchalishev, V.V., Tessarotto, F., Teufel, A., Thers, D., Tkatchev, L.G., Toeda, T., Tretyak, V.I., Trousov, S., Varanda, M., Virius, M., Vlassov, N.V., Wagner, M., Webb, R., Weise, E., Weitzel, Q., Wiedner, U., Wiesmann, M., Windmolders, R., Wirth, S., Wiślicki, W., Zanetti, A.M., Zaremba, K., Zhao, J., Ziegler, R., and Zvyagin, A.

Published
2006
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22. Gluon polarization in the nucleon from quasi-real photoproduction of high-pT hadron pairs

Author

Ageev, E.S., Alexakhin, V.Yu., Alexandrov, Yu., Alexeev, G.D., Amoroso, A., Badelek, B., Balestra, F., Ball, J., Baum, G., Bedfer, Y., Berglund, P., Bernet, C., Bertini, R., Birsa, R., Bisplinghoff, J., Bordalo, P., Bradamante, F., Bravar, A., Bressan, A., Brona, G., Burtin, E., Bussa, M.P., Bytchkov, V.N., Cerini, L., Chapiro, A., Cicuttin, A., Colantoni, M., Colavita, A.A., Costa, S., Crespo, M.L., Dalla Torre, S., Dasgupta, S.S., Dedek, N., De Masi, R., Denisov, O.Yu., Dhara, L., Diaz, V., Dinkelbach, A.M., Dolgopolov, A.V., Donskov, S.V., Dorofeev, V.A., Doshita, N., Duic, V., Dünnweber, W., Ehlers, J., Eversheim, P.D., Eyrich, W., Fabro, M., Faessler, M., Falaleev, V., Fauland, P., Ferrero, A., Ferrero, L., Finger, M., Fischer, H., Franz, J., Friedrich, J.M., Frolov, V., Garfagnini, R., Gautheron, F., Gavrichtchouk, O.P., Gerassimov, S., Geyer, R., Giorgi, M., Gobbo, B., Goertz, S., Gorin, A.M., Grajek, O.A., Grasso, A., Grube, B., Grünemaier, A., Hannappel, J., von Harrach, D., Hasegawa, T., Hedicke, S., Heinsius, F.H., Hermann, R., Heß, C., Hinterberger, F., von Hodenberg, M., Horikawa, N., Horikawa, S., d'Hose, N., Ijaduola, R.B., Ilgner, C., Ioukaev, A.I., Ishimoto, S., Ivanov, O., Iwata, T., Jahn, R., Janata, A., Joosten, R., Jouravlev, N.I., Kabuß, E., Kalinnikov, V., Kang, D., Karstens, F., Kastaun, W., Ketzer, B., Khaustov, G.V., Khokhlov, Yu.A., Khomutov, N.V., Kisselev, Yu., Klein, F., Koblitz, S., Koivuniemi, J.H., Kolosov, V.N., Komissarov, E.V., Kondo, K., Königsmann, K., Konoplyannikov, A.K., Konorov, I., Konstantinov, V.F., Korentchenko, A.S., Korzenev, A., Kotzinian, A.M., Koutchinski, N.A., Kowalik, K., Kravchuk, N.P., Krivokhizhin, G.V., Kroumchtein, Z.V., Kuhn, R., Kunne, F., Kurek, K., Ladygin, M.E., Lamanna, M., Leberig, M., Le Goff, J.M., Lichtenstadt, J., Liska, T., Ludwig, I., Maggiora, A., Maggiora, M., Magnon, A., Mallot, G.K., Manuilov, I.V., Marchand, C., Marroncle, J., Martin, A., Marzec, J., Matsuda, T., Maximov, A.N., Medved, K.S., Meyer, W., Mielech, A., Mikhailov, Yu.V., Moinester, M.A., Nähle, O., Nassalski, J., Neliba, S., Neyret, D.P., Nikolaenko, V.I., Nozdrin, A.A., Obraztsov, V.F., Olshevsky, A.G., Ostrick, M., Padee, A., Pagano, P., Panebianco, S., Panzieri, D., Paul, S., Pereira, H.D., Peshekhonov, D.V., Peshekhonov, V.D., Piragino, G., Platchkov, S., Platzer, K., Pochodzalla, J., Polyakov, V.A., Popov, A.A., Pretz, J., Procureur, S., Quintans, C., Ramos, S., Rebourgeard, P.C., Reicherz, G., Reymann, J., Rith, K., Rondio, E., Rozhdestvensky, A.M., Sadovski, A.B., Saller, E., Samoylenko, V.D., Sandacz, A., Sans, M., Sapozhnikov, M.G., Savin, I.A., Schiavon, P., Schill, C., Schmidt, T., Schmitt, H., Schmitt, L., Shevchenko, O.Yu., Shishkin, A.A., Siebert, H.-W., Sinha, L., Sissakian, A.N., Skachkova, A., Slunecka, M., Smirnov, G.I., Sozzi, F., Srnka, A., Stinzing, F., Stolarski, M., Sugonyaev, V.P., Sulc, M., Sulej, R., Takabayashi, N., Tchalishev, V.V., Tessarotto, F., Teufel, A., Thers, D., Tkatchev, L.G., Toeda, T., Tretyak, V.I., Trousov, S., Varanda, M., Virius, M., Vlassov, N.V., Wagner, M., Webb, R., Weise, E., Weitzel, Q., Wiedner, U., Wiesmann, M., Windmolders, R., Wirth, S., Wiślicki, W., Zanetti, A.M., Zaremba, K., Zhao, J., Ziegler, R., and Zvyagin, A.

Subjects
Spin, Polarization, Asymmetry, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, Deep inelastic scattering, Nucleon, Gluon
Abstract

We present a determination of the gluon polarization Delta G/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q^2 = 0.002 +- 0.019(stat.) +- 0.003(syst.). From this value, we obtain in a leading-order QCD analysis Delta G/G=0.024 +- 0.089(stat.) +- 0.057(syst.) at x_g = 0.095 and mu^2 =~ 3 (GeV}/c)^2. We present a determination of the gluon polarization Delta G/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q^2 = 0.002 +- 0.019(stat.) +- 0.003(syst.). From this value, we obtain in a leading-order QCD analysis Delta G/G=0.024 +- 0.089(stat.) +- 0.057(syst.) at x_g = 0.095 and mu^2 =~ 3 (GeV}/c)^2. We present a determination of the gluon polarization Delta G/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q^2 = 0.002 +- 0.019(stat.) +- 0.003(syst.). From this value, we obtain in a leading-order QCD analysis Delta G/G=0.024 +- 0.089(stat.) +- 0.057(syst.) at x_g = 0.095 and mu^2 =~ 3 (GeV}/c)^2. We present a determination of the gluon polarization Delta G/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q^2 = 0.002 +- 0.019(stat.) +- 0.003(syst.). From this value, we obtain in a leading-order QCD analysis Delta G/G=0.024 +- 0.089(stat.) +- 0.057(syst.) at x_g = 0.095 and mu^2 =~ 3 (GeV}/c)^2. We present a determination of the gluon polarization Delta G/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q^2 = 0.002 +- 0.019(stat.) +- 0.003(syst.). From this value, we obtain in a leading-order QCD analysis Delta G/G=0.024 +- 0.089(stat.) +- 0.057(syst.) at x_g = 0.095 and mu^2 =~ 3 (GeV}/c)^2. We present a determination of the gluon polarization Delta G/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q^2 = 0.002 +- 0.019(stat.) +- 0.003(syst.). From this value, we obtain in a leading-order QCD analysis Delta G/G=0.024 +- 0.089(stat.) +- 0.057(syst.) at x_g = 0.095 and mu^2 =~ 3 (GeV}/c)^2. We present a determination of the gluon polarization ΔG/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q2

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25. Extra-Auditory Effects from Noise Exposure in Schools: Results of Nine Italian Case Studies

Author

Franco Cotana, Francesco Asdrubali, Giulio Arcangeli, Sergio Luzzi, Giampietro Ricci, Lucia Busa, Michele Goretti, Alfonso Antonio Vincenzo Tortorella, Paola Pulella, Piergiovanni Domenighini, Valeria Gambacorta, Claudia Guattari, Federica Cirimbilli, Andrea Nicolini, Pietro Nataletti, Diego Annesi, Filippo Sanjust, Luigi Cerini, Cotana, F, Asdrubali, F, Arcangeli, G, Luzzi, S, Ricci, G, Busa, L, Goretti, M, Tortorella, Aav, Pulella, P, Domenighini, P, Gambacorta, V, Guattari, C, Cirimbilli, F, Nicolini, A, Nataletti, P, Annesi, D, Sanjust, F, and Cerini, L

Subjects
vocal effort, extra-auditory effect, noise exposure, noise exposure, extra-auditory effects, acoustic measurements, vocal effort, subjective investigation, schools, extra-auditory effects, subjective investigation, acoustic measurements, schools, General Medicine, acoustic measurement
Abstract

Noise exposure may cause auditory and extra-auditory effects. School teachers and students are exposed to high noise levels which have an impact on perceptual-cognitive and neurobehavioral aspects. The latter influence teaching conditions and student school performance. A Protocol was defined and parameters to be investigated were identified for acoustic characterization of unoccupied and occupied school environments, assessment of users by means of questionnaires completed by teachers and students, and vocal effort evaluation. Classrooms, laboratories, auditoriums, gymnasiums, common areas, canteens and outdoor areas were analysed in terms of acoustic features and identification of the origin of noise. The Protocol was tested in three kindergartens, three primary schools and three secondary schools placed in Rome, Florence and Perugia. Results of nine case studies are presented, including comparisons of objective and subjective investigations. Generally, the acoustic performances of the spaces under investigation do not meet the requirements of current Italian legislation. In particular, student activity determines high noise levels in laboratories, gymnasiums, and canteens. Students notice that noise mainly causes loss of concentration, fatigue, boredom, and headache. The outcomes of this research will be the starting point to define strategies and solutions for noise control and mitigation in schools and to draft guidelines for the acoustical school design.

Published
2023
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26. First measurement of the transverse spin asymmetries of the deuteron in semi-inclusive deep inelastic scattering

Author

V. Yu. Alexakhin, Yu. Alexandrov, G. D. Alexeev, A. Amoroso, B. Badełek, F. Balestra, J. Ball, G. Baum, Y. Bedfer, P. Berglund, C. Bernet, R. Bertini, R. Birsa, J. Bisplinghoff, F. Bradamante, A. Bravar, A. Bressan, E. Burtin, M. P. Bussa, L. Cerini, A. Chapiro, A. Cicuttin, M. Colantoni, A. A. Colavita, S. Costa, M. L. Crespo, N. d’Hose, S. Dalla Torre, S. S. Dasgupta, R. De Masi, N. Dedek, O. Yu. Denisov, L. Dhara, V. Diaz Kavka, A. V. Dolgopolov, S. V. Donskov, V. A. Dorofeev, N. Doshita, V. Duic, W. Dünnweber, A. Efremov, J. Ehlers, P. D. Eversheim, W. Eyrich, M. Fabro, M. Faessler, P. Fauland, A. Ferrero, L. Ferrero, M. Finger, H. Fischer, J. Franz, J. M. Friedrich, V. Frolov, U. Fuchs, R. Garfagnini, F. Gautheron, O. P. Gavrichtchouk, S. Gerassimov, R. Geyer, M. Giorgi, B. Gobbo, S. Goertz, O. A. Grajek, A. Grasso, B. Grube, A. Grünemaier, K. Gustafsson, J. Hannappel, D. von Harrach, T. Hasegawa, S. Hedicke, F. H. Heinsius, F. Hinterberger, M. von Hodenberg, N. Horikawa, S. Horikawa, R. B. Ijaduola, C. Ilgner, S. Ishimoto, T. Iwata, R. Jahn, A. Janata, R. Joosten, N. I. Jouravlev, E. Kabuß, V. Kalinnikov, D. Kang, F. Karstens, W. Kastaun, B. Ketzer, G. V. Khaustov, Yu. A. Khokhlov, Yu. Kisselev, F. Klein, J. H. Koivuniemi, V. N. Kolosov, E. V. Komissarov, K. Kondo, K. Königsmann, A. K. Konoplyannikov, I. Konorov, V. F. Konstantinov, A. S. Korentchenko, A. Korzenev, A. M. Kotzinian, N. A. Koutchinski, K. Kowalik, N. P. Kravchuk, G. V. Krivokhizhin, Z. V. Kroumchtein, R. Kuhn, F. Kunne, K. Kurek, M. Lamanna, J. M. Le Goff, M. Leberig, J. Lichtenstadt, A. Maggiora, M. Maggiora, A. Magnon, G. K. Mallot, I. V. Manuilov, C. Marchand, J. Marroncle, A. Martin, J. Marzec, T. Matsuda, A. N. Maximov, K. S. Medved, W. Meyer, A. Mielech, Yu. V. Mikhailov, M. A. Moinester, O. Nähle, J. Nassalski, D. P. Neyret, V. I. Nikolaenko, A. A. Nozdrin, V. F. Obraztsov, A. G. Olshevsky, M. Ostrick, A. Padee, P. Pagano, S. Panebianco, D. Panzieri, S. Paul, H. D. Pereira, D. V. Peshekhonov, V. D. Peshekhonov, G. Piragino, S. Platchkov, K. Platzer, J. Pochodzalla, V. A. Polyakov, A. A. Popov, J. Pretz, P. C. Rebourgeard, G. Reicherz, J. Reymann, A. M. Rozhdestvensky, E. Rondio, A. B. Sadovski, E. Saller, V. D. Samoylenko, A. Sandacz, M. Sans, M. G. Sapozhnikov, I. A. Savin, P. Schiavon, T. Schmidt, H. Schmitt, L. Schmitt, A. A. Shishkin, H. Siebert, L. Sinha, A. N. Sissakian, A. Skachkova, M. Slunecka, G. I. Smirnov, V. P. Sugonyaev, F. Stinzing, R. Sulej, N. Takabayashi, V. V. Tchalishev, F. Tessarotto, A. Teufel, D. Thers, L. G. Tkatchev, T. Toeda, V. I. Tretyak, S. Trousov, N. V. Vlassov, R. Webb, E. Weise, M. Wiesmann, R. Windmolders, S. Wirth, W. Wiślicki, A. M. Zanetti, K. Zaremba, J. Zhao, R. Ziegler, A. Zvyagin, ALEXAKHIN V., Yu, Alexandrov, Yu, ALEXEEV G., D, Amoroso, A, Badelek, B, Balestra, F, Ball, J, Baum, G, Bedfer, Y, Berglund, P, Bernet, C, Bertini, R, Birsa, R, Bisplinghoff, J, Bradamante, Franco, Bravar, A, Bressan, Andrea, Burtin, E, BUSSA M., P, Cerini, L, Chapiro, A, Cicuttin, A, Colantoni, M, COLAVITA A., A, Costa, S, CRESPO M., L, D'Hose, N, DALLA TORRE, S, DASGUPTA S., S, DE MASI, R, Dedek, N, DENISOV O., Yu, Dhara, L, DIAZ KAVKA, V, DOLGOPOLOV A., V, DONSKOV S., V, DOROFEEV V., A, Doshita, N, Duic, V, Dünnweber, W, Efremov, A, Ehlers, J, EVERSHEIM P., D, Eyrich, W, Fabro, M, Faessler, M, Fauland, P, Ferrero, A, Ferrero, L, Finger, M, FINGER M., Jr, Fischer, H, Franz, J, FRIEDRICH J., M, Frolov, V, Fuchs, U, Garfagnini, R, Gautheron, F, GAVRICHTCHOUK O., P, Gerassimov, S, Geyer, R, Giorgi, Marcello, Gobbo, B, Goertz, S, GRAJEK O., A, Grasso, A, Grube, B, Grünemaier, A, Gustafsson, K, Hannappel, J, VON HARRACH, D, Hasegawa, T, Hedicke, S, HEINSIUS F., H, Hinterberger, F, VON HODENBERG, M, Horikawa, N, Horikawa, S, IJADUOLA R., B, Ilgner, C, Ishimoto, S, Iwata, T, Jahn, R, Janata, A, Joosten, R, JOURAVLEV N., I, Kabuss, E, Kalinnikov, V, Kang, D, Karstens, F, Kastaun, W, Ketzer, B, KHAUSTOV G., V, KHOKHLOV Y. U., A, Kisselevu, Klein, F, KOIVUNIEMI J., H, KOLOSOV V., N, KOMISSAROV E., V, Kondo, K, Königsmann, K, KONOPLYANNIKOV A., K, Konorov, I, KONSTANTINOV V., F, KORENTCHENKO A., S, Korzenev, A, KOTZINIAN A., M, KOUTCHINSKI N., A, Kowalik, K, KRAVCHUK N., P, KRIVOKHIZHIN G., V, KROUMCHTEIN Z., V, Kuhn, R, Kunne, F, Kurek, K, Lamanna, M, LE GOFF J., M, Leberig, M, Lichtenstadt, J, Maggiora, A, Maggiora, M, Magnon, A, MALLOT G., K, MANUILOV I., V, Marchand, C, Marroncle, J, Martin, Anna, Marzec, J, Matsuda, T, MAXIMOV A., N, MEDVED K., S, Meyer, W, Mielech, A, MIKHAILOV Y. U., V, MOINESTER M., A, Nähle, O, Nassalski, J, NEYRET D., P, NIKOLAENKO V., I, NOZDRIN A., A, OBRAZTSOV V., F, OLSHEVSKY A., G, Ostrick, M, Padee, A, Pagano, P, Panebianco, S, Panzieri, D, Paul, S, PEREIRA H., D, PESHEKHONOV D., V, PESHEKHONOV V., D, Piragino, G, Platchkov, S, Platzer, K, Pochodzalla, J, POLYAKOV V., A, POPOV A., A, Pretz, J, REBOURGEARD P., C, Reicherz, G, Reymann, J, ROZHDESTVENSKY A., M, Rondio, E, SADOVSKI A., B, Saller, E, SAMOYLENKO V., D, Sandacz, A, Sans, M, SAPOZHNIKOV M., G, SAVIN I., A, Schiavon, Paolo, Schmidt, T, Schmitt, H, Schmitt, L, SHISHKIN A., A, Siebert, H, Sinha, L, SISSAKIAN A., N, Skachkova, A, Slunecka, M, SMIRNOV G., I, Sugonyaev, V. P, Stinzing, F, Sulej, R, Takabayashi, N, TCHALISHEV V., V, Tessarotto, F, Teufel, A, Thers, D, TKATCHEV L., G, Toeda, T, TRETYAK V., I, Trousov, S, VLASSOV N., V, Webb, R, Weise, E, Wiesmann, M, Windmolders, R, Wirth, S, Wisblicki, W, ZANETTI A., M, Zaremba, K, Zhao, J, Ziegler, R, and Zvyagin, A.

Subjects
Quark, Particle physics, Physics::Instrumentation and Detectors, media_common.quotation_subject, Hadron, FOS: Physical sciences, General Physics and Astronomy, Inelastic scattering, COMPASS, Asymmetry, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Nuclear Experiment, media_common, Physics, Quantum chromodynamics, Muon, Scattering, Deep inelastic scattering, QCD, nucleon structure, transverse spin and transverse momentum, Physics::Accelerator Physics, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

First measurements of the Collins and Sivers asymmetries of charged hadrons produced in deep-inelastic scattering of muons on a transversely polarized 6-LiD target are presented. The data were taken in 2002 with the COMPASS spectrometer using the muon beam of the CERN SPS at 160 GeV/c. The Collins asymmetry turns out to be compatible with zero, as does the measured Sivers asymmetry within the present statistical errors., Comment: 6 pages, 2 figures

Published
2005

27. Otoacoustic Estimate of Astronauts' Intracranial Pressure Changes During Spaceflight.

Author

Moleti A, Minniti T, Sharma Y, Russo A, Civiero A, Orlando MP, MacGregor R, Lucertini M, D'Amico A, Pennazza G, Santonico M, Zompanti A, Crisafi A, Deffacis M, Sapone R, Mascetti G, Vadrucci M, Valentini G, Castagnolo D, Botti T, Cerini L, Sanjust F, and Sisto R

Abstract

Purpose: To investigate the potential correlation between prolonged exposure to microgravity on the International Space Station and increased intracranial fluid pressure, which is considered a risk factor for the astronauts' vision, and to explore the feasibility of using distortion product otoacoustic emissions as a non-invasive in-flight monitor for intracranial pressure changes., Methods: Distortion product otoacoustic emission phase measurements were taken from both ears of five astronauts pre-flight, in-flight, and post-flight. These measurements served as indirect indicators of intracranial pressure changes, given their high sensitivity to middle ear transmission alterations. The baseline pre-flight ground measurements were taken in the seated upright position., Results: In-flight measurements revealed a significant systematic increase in otoacoustic phase, indicating elevated intracranial pressure during spaceflight compared to seated upright pre-flight ground baseline. Noteworthy, in two astronauts, strong agreement was also observed between the time course of the phase changes measured in the two ears during and after the mission. Reproducibility and stability of the probe placement in the ear canal were recognized as a critical issue., Conclusions: The study suggests that distortion product otoacoustic emissions hold promise as a non-invasive tool for monitoring intracranial pressure changes in astronauts during space missions. Pre-flight measurements in different body postures and probe fitting strategies based on the individual ear morphology are needed to validate and refine this approach., (© 2024. The Author(s).)

Published
2024
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28. MicroRNA expression is associated with auditory dysfunction in workers exposed to ototoxic solvents and noise.

Author

Sisto R, Moleti A, Capone P, Sanjust F, Cerini L, Tranfo G, Massini G, Buscema S, Buscema PM, and Chiarella P

Subjects
Auditory Threshold, Humans, Solvents toxicity, Hearing Loss, Noise-Induced diagnosis, Hearing Loss, Noise-Induced genetics, MicroRNAs genetics, Ototoxicity, Volatile Organic Compounds adverse effects
Abstract

This study is part of a project on early hearing dysfunction induced by combined exposure to volatile organic compounds (VOCs) and noise in occupational settings. In a previous study, 56 microRNAs were found differentially expressed in exposed workers compared to controls. Here, we analyze the statistical association of microRNA expression with audiometric hearing level (HL) and distortion product otoacoustic emission (DPOAE) level in that subset of differentially expressed microRNAs. The highest negative correlations were found; for HL, with miR-195-5p and miR-122-5p, and, for DPOAEs, with miR-92b-5p and miR-206. The homozygous ( mut ) and heterozygous ( het ) variants of the gene hOGG1 were found disadvantaged with respect to the wild-type ( wt ), as regards the risk of hearing impairment due to exposure to VOCs. An unsupervised artificial neural network (auto contractive map) was also used to detect and show, using graph analysis, the hidden connections between the explored variables. These findings may contribute to the formulation of mechanistic hypotheses about hearing damage due to co-exposure to noise and ototoxic solvents., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Sisto, Moleti, Capone, Sanjust, Cerini, Tranfo, Massini, Buscema, Buscema and Chiarella.)

Published
2022
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29. Hearing Aids Performance in Hypobaric Environments.

Author

Lucertini M, Sanjust F, Manca R, Cerini L, Lucertini L, and Sisto R

Subjects
Altitude, Humans, Hypoxia, Pressure, Aerospace Medicine, Hearing Aids
Abstract

OBJECTIVE: High altitudes imply exposure to a decreased ambient air pressure. Such a situation may also alter the performance of acoustic transducers using vibrating diaphragms due to air rarefaction. This study aimed at analyzing the performance at high altitude of hearing aids (HAs) where mechano-electric and electro-mechanic transducers are used. METHODS: A hypobaric chamber was used to perform two separated experimental sessions. In the first one two commercial models of HAs were exposed to a simulated altitude of 25,000 ft (7620 m) and to a subsequent rapid decompression profile, with a rapid climb (< 3 s) from 8000 (2438 m) to 25,000 ft. The second session separately analyzed the performance of microphone and receiver at an altitude of 9000 and 15,000 ft (2743 and 4572 m). Before and after the first session, the HAs were tested with an electronic ear while a dedicated recording system was used in the second session. RESULTS: No HA damage or dysfunction was detected during the first session. In the second one, the microphone showed a mild decrease of its output, while the receiver exhibited a much higher reduction of its output. CONCLUSION: Our findings highlight the safe use of HAs even under extreme environmental pressure changes. For altitudes exceeding 10,000 ft (3048 m), a recalibration of the HAs output via a dedicated program may be suggested. Lucertini M, Sanjust F, Manca R, Cerini L, Lucertini L, Sisto R. Hearing aids performance in hypobaric environments . Aerosp Med Hum Perform. 2021; 92(9):738743 .

Published
2021
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30. Occupational exposure to volatile organic compounds affects microRNA profiling: Towards the identification of novel biomarkers.

Author

Sisto R, Capone P, Cerini L, Paci E, Pigini D, Gherardi M, Gordiani A, L'Episcopo N, Tranfo G, and Chiarella P

Abstract

In the framework of a project aimed at finding novel predictive biomarkers of VOCs exposure-related diseases, the effect of exposure to ethylbenzene, toluene, and xylene has been analyzed in a group of painters (spray- and roller-painters) working in the shipyard industry. Airborne levels of solvents were higher in spray- than in roller-painters, and comparable to the Occupational Exposure Limits (OELs), particularly for toluene and xylene. The urinary concentration of each volatile organic compound (VOC) and of the corresponding metabolites were also concurrently measured. A set of oxidative stress biomarkers, i.e., the products of DNA and RNA oxidation, RNA methylation, and protein nitration, were measured, and found significantly higher at the end of the work shift. MicroRNA (MiRNA) expression was analyzed in the VOC-exposed workers and in a control group, finding 56 differentially expressed (DE) miRNAs at a statistically significant level (adjusted p ≤ 0.01). The Receiver-Operating Characteristic curves, computed for each identified miRNA, showed high sensitivity and specificity. A pathway analysis in the Kyoto Encyclopedia of Genes and Genomes (KEGG) showed that miRNA-1, which was found downregulated in exposed workers, is involved in the lung cancer oncogenesis. A subset of 10 miRNAs (out of the 56 DE) was selected, including those with the highest correlation to the urinary dose biomarkers measured at the end of work-shift. Multivariate ANOVA analysis showed a statistically significant correlation between the urinary dose biomarkers (both the VOCs urinary concentration and the VOCs' metabolite concentration), and the identified miRNA subset, indicating that the exposure to low VOC doses may be sufficient to activate the miRNA response. Four miRNAs belonging to the subset strongly related to the VOCs and VOCs' metabolites concentration were individuated, miR-589-5p, miR-941, miR-146b-3p and miR-27a-3p, with well-known implications in oxidative stress and inflammation processes., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2020 The Author(s).)

Published
2020
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31. Distortion product otoacoustic emission sensitivity to different solvents in a population of industrial painters.

Author

Sisto R, Cerini L, Sanjust F, Carbonari D, Gherardi M, Gordiani A, L'Episcopo N, Paci E, Pigini D, Tranfo G, and Moleti A

Subjects
Adult, Audiometry, Pure-Tone, Biomarkers urine, Humans, Linear Models, Middle Aged, Noise, Occupational adverse effects, Occupational Diseases chemically induced, Occupational Diseases urine, Occupational Exposure adverse effects, Ototoxicity etiology, Ototoxicity urine, Oxidative Stress drug effects, Young Adult, Occupational Diseases diagnosis, Otoacoustic Emissions, Spontaneous drug effects, Ototoxicity diagnosis, Paint, Solvents toxicity
Abstract

Objective: To evaluate the ototoxic effect of the exposure to different organic solvents and noise using distortion product otoacoustic emissions (DPOAEs). Design: The exposure to different solvents was evaluated by measuring, before and at the end of the work-shift, the urinary concentrations of solvent metabolites used as dose biomarkers. The urinary concentrations of DNA and RNA oxidation products were also measured as biomarkers of oxidative damage. The simultaneous exposure to noise was also evaluated. DPOAEs and pure tone audiometry (PTA) were used as outcome variables, and were correlated to the exposure variables using mixed effect linear regression models. Study sample: Seventeen industrial painters exposed to a solvent mixture in a naval industry. A sample size of 15 was estimated from previous studies as sufficient for discriminating small hearing level and DPOAE level differences (5 dB and 2 dB, respectively) at a 95% confidence level. Results: Statistically significant associations were found between the DPOAE level and the urinary dose biomarkers and the oxidative damage biomarkers. DPOAE level and the logarithm of the metabolite concentration showed a significant negative correlation. Conclusions: DPOAE are sensitive biomarkers of exposure to ototoxic substances and can be effectively used for the early detection of hearing dysfunction.

Published
2020
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32. High Altitude Performance of Loudspeakers and Potential Impact on Audiometric Findings.

Author

Lucertini M, Botti T, Sanjust F, Cerini L, Autore A, Lucertini L, and Sisto R

Subjects
Acoustic Stimulation, Aerospace Medicine instrumentation, Altitude, Audiometry instrumentation, Aviation, Humans, Humidity, Temperature, Aerospace Medicine methods, Audiometry methods, Auditory Threshold physiology, Hypoxia physiopathology, Pressure adverse effects
Abstract

BACKGROUND: The evaluation of how air rarefaction can affect a loudspeaker performance at altitude implies the need for characterization of earphones during hypobaric conditions. The aim of this study was phonometric analysis at different altitudes of the acoustic output of a widely used earphone model, along with its consequences on audiological investigations conducted under such environmental conditions. METHODS: The transfer function of a TDH-39P earphone was analyzed with an artificial ear under nine different altitude levels, from sea level up to 35,000 ft, inside a hypobaric chamber. A specific phonometric system not sensitive to environmental pressure changes was used. Other potentially confounding factors, such as environmental temperature and humidity, were continuously monitored. RESULTS: No relevant temperature or humidity changes were detected. The sound pressure level generated by the earphone under hypobaric conditions was found considerably affected by air density changes. These data produced a correction table aiming at recalibrating the earphone's output at each audiometric octave test frequency within the 250-8000 Hz range. Quite different characteristics of response were observed at different audiometric frequencies. Such findings were particularly evident for altitudes exceeding 12,000 ft. DISCUSSION: The development of a frequency-selective and altitude-related correction factor for acoustic stimuli is an essential aspect when hearing threshold measurements in hypobaric environments are performed. Lucertini M, Botti T, Sanjust F, Cerini L, Autore A, Lucertini L, Sisto R. High altitude performance of loudspeakers and potential impact on audiometric findings . Aerosp Med Hum Perform. 2019; 90(7):655-659.

Published
2019
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33. Circulating microRNAs as potential biomarkers of occupational exposure to low dose organic solvents.

Author

Sisto R, Capone P, Cerini L, Sanjust F, Paci E, Pigini D, Gatto MP, Gherardi M, Gordiani A, L'Episcopo N, Tranfo G, and Chiarella P

Abstract

Circulating microRNAs (miRNAs) have been recently acknowledged as novel and non-invasive biomarkers of exposure to environmental and occupational hazardous substances. This preliminary study investigates the potential role of blood miRNAs as molecular biomarkers of exposure to the most common organic solvents (ethylbenzene, toluene, xylene) used in the shipyard painting activity. Despite the low number of recruited workers, a two-tail standard Students' test with Holm-Bonferroni adjusted p-value shows a significant up-regulation of two miRNAs (miR&#95;6819&#95;5p and miR&#95;6778&#95;5p) in exposed workers with respect to controls. A correlation analysis between miRNA, differentially expressed in exposed workers and in controls and urinary dose biomarkers i.e. methylhyppuric acid (xylenes metabolite), phenylglyoxylic and mandelic acid (ethylbenzene metabolites) S-benzyl mercapturic acid (toluene metabolite) and S-phenylmercapturic acid (benzene metabolite) measured at the end of the work-shift, allowed the identification of high correlation (0.80-0.99) of specific miRNAs with their respective urinary metabolites. MiRNA&#95;671&#95;5p correlated with methylhippuric, S-phenylmercapturic and S-benzyl mercapturic acid while the miRNA best correlating with the phenylglioxylic acid was miRNA&#95;937&#95;5p. These findings suggest miRNA as sensitive biomarkers of low dose exposure to organic chemicals used at workplace. Urinary DNA and RNA repair biomarkers coming from the oxidation product of guanine have been also associated to the different miRNAs. A significant negative association was found between 8-oxo-7,8-dihydroguanine (8-oxoGua) urinary concentration and miR&#95;6778&#95;5p. The findings of the present pilot study deserve to be tested on a larger population with the perspective of designing a miRNA based test of low dose exposure to organic solvents.

Published
2019
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34. Intensimetric detection of distortion product otoacoustic emissions with ear canal calibration.

Author

Sisto R, Cerini L, Sanjust F, and Moleti A

Subjects
Acoustic Stimulation, Equipment Design, Fourier Analysis, Humans, Motion, Pressure, Sound, Sound Spectrography, Time Factors, Transducers, Acoustics instrumentation, Cochlea physiology, Ear Canal physiology, Otoacoustic Emissions, Spontaneous
Abstract

Distortion product otoacoustic emissions (DPOAEs) have been accurately measured with an intensimetric technique, involving simultaneous measure of pressure and velocity in the ear canal, which allows one to correctly calibrate both the input stimuli and the otoacoustic emission (OAE) level. Suitable combinations of standard intensimetric quantities, active intensity and power density [Stanzial, Shiffrer, and Sacchi, J. Acoust. Soc. Am. 131, 269-280 (2012)], are used to equalize the stimuli transmitted to the middle ear, and to estimate the DPOAE level emitted by the eardrum. The DPOAE intensimetric spectra are consistent with those recorded with a high-quality conventional otoacoustic probe with state-of-the-art calibration of both stimulus and OAE response [Charaziak and Shera, J. Acoust. Soc. Am. 141, 515-525 (2017)], demonstrating the applicability of the intensimetric method to OAE measurements.

Published
2017
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35. Attenuation of peak sound pressure levels of shooting noise by hearing protective earmuffs.

Author

Lenzuni P, Sangiorgi T, and Cerini L

Subjects
Algorithms, Bone Conduction, Computer Simulation, Humans, Italy, Manikins, Pressure adverse effects, Ear Protective Devices standards, Firearms, Hearing Loss, Noise-Induced prevention & control, Noise adverse effects
Abstract

Transmission losses (TL) to highly impulsive signals generated by three firearms have been measured for two ear muffs, using both a head and torso simulator and a miniature microphone located at the ear canal entrance (MIRE technique). Peak SPL TL have been found to be well approximated by 40 ms short-L eq TL. This has allowed the use of transmissibilities and correction factors for bone conduction and physiological masking appropriate for continuous noise, for the calculation of REAT-type peak insertion losses (IL). Results indicate that peak IL can be well predicted by estimates based on one-third octave band 40 ms short L eq and manufacturer-declared (nominal) IL measured for continuous noise according to test standards. Such predictions tend to be more accurate at the high end of the range, while they are less reliable when the attenuation is lower. A user-friendly simplified prediction algorithm has also been developed, which only requires nominal IL and one-third octave sound exposure level spectra. Separate predictions are possible for IL in direct and diffuse sound fields, albeit with higher uncertainties, due to the smaller number of experimental data comprising the two separate datasets on which such predictions are based.

Published
2012
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36. [Synergistic exposure to noise and styrene and cochlear functionality in a sample of exposed workers: preliminary results].

Author

Sisto R, Cerini L, Garofani P, Gatto MP, Gherardi M, Gordiani A, Paci E, Sanjust E, Papaleo B, and Tranfo G

Subjects
Adult, Female, Humans, Male, Middle Aged, Cochlea drug effects, Cochlea physiopathology, Noise, Occupational adverse effects, Occupational Exposure adverse effects, Styrene adverse effects
Abstract

This study is aimed at testing the cochlear functionality using otoacoustic emissions, analyzing the synergistic effects of simultaneous exposure to noise and organic solvents EBTx on workers of a glass-reinforced plastic products factory. Exposure to organic solvents was assessed using ambiental measurements and evaluation of the salivary concentration. Biological monitoring was performed evaluating the urinary concentration of the styrene metabolites. Statistical analysis shows that otoacoustic tests can discriminate between different exposure groups. Significant differences were found between controls and subjects exposed to high styrene and low noise levels, showing the ototoxic effect (at sub-clinical level) of the styrene exposure.

Published
2011

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