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32 results on '"Bergonzoni, C."'

1. Advanced Transport Modelling in a Microelectronics Company: Status and Perspectives

Author

Bergonzoni, C., Benvenuti, A., Marmiroli, A., Bock, Hans-Georg, editor, Dehoog, Frank, editor, Friedman, Avner, editor, Langford, William, editor, Neunzert, Helmut, editor, Pulleyblank, William R., editor, Rusten, Torgeir, editor, Tornberg, Anna-Karin, editor, Capasso, Vincenzo, editor, Mattheij, Robert, editor, Anile, Angelo Marcello, editor, and Greco, Antonio, editor

Published
2002
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6. Comments on 'The generation and characterization of electron and hole traps created by hole injection during low gate voltage hot-carrier stressing of n-MOS transistors' [with reply]

Author

Doyle, B.S., Mistry, K.R., Bourcerie, M., Bergonzoni, C., Benecchi, R., BRAVAIX, Alain, Boudou, A., ISEN Toulon, and Institut supérieur de l'électronique et du numérique (ISEN)

Subjects
010302 applied physics, [SPI]Engineering Sciences [physics], MESH: electron traps , hole traps , hot carriers , insulated gate field effect transistors , semiconductor device models, 0103 physical sciences, 02 engineering and technology, Electrical and Electronic Engineering, 021001 nanoscience & nanotechnology, 0210 nano-technology, 01 natural sciences, Electronic, Optical and Magnetic Materials
Abstract

International audience; For original article by B.S. Doyle et al. see ibid., vol.37, p.1869-76, (Aug. 1990). In the above-titled paper the principal damage caused to n-MOSFETs during stress at low gate biases is claimed to be neutral electron trap generation in the gate oxide. These traps can supposedly be filled by injected electrons, when the transistor is biased at large drain and gate biases. When the generated electron traps are filled with electrons, a large degradation of current characteristics is observed. The commenters argue that no experimental evidence can be found to confirm this hypothesis. Using the data presented by Doyle et al. and in other studies the commenters show that the generation of neutral traps by injected holes is negligible. Neutral electron trap generation can, however, occur in MOSFETs when large oxide fields occur during operation. In reply, Doyle et al. argue that their normalization technique is correct, while that of the commenters leads to inconsistent results. After discussing several other points, they conclude that electron traps are created during channel hot-hole injection and must be taken into consideration in hot carrier lifetime estimates under AC conditions.

Published
1992

27. Hearing loss in Turner syndrome: Results of a multicentric study

Author

C Bergonzoni, Francesca Mencarelli, M Rosano, R. Bergamaschi, Laura Mazzanti, F Messina, Alessandro Cicognani, Emanuela Scarano, Lorenzo Iughetti, Bergamaschi R, Bergonzoni C, Mazzanti L, Scarano E, Mencarelli F, Messina F, Rosano M, Iughetti L, and Cicognani A.

Subjects
medicine.medical_specialty, Adolescent, multicentric study, Hearing loss, Turner syndrome, otological diseases, Endocrinology, Diabetes and Metabolism, Turner syndrome, hearing loss, Gastroenterology, Otological Diseases, Young Adult, Endocrinology, Audiometry, Internal medicine, Prevalence, otorhinolaryngologic diseases, medicine, Humans, Child, hearing loss, Cholesteatoma, conductive hearing loss, quality of life, sensorineural hearing loss, Turner syndrome, business.industry, Cholesteatoma, medicine.disease, Surgery, Conductive hearing loss, medicine.anatomical_structure, Otitis, Italy, Child, Preschool, Karyotyping, Middle ear, Female, Sensorineural hearing loss, medicine.symptom, business
Abstract

The purpose of this article was to evaluate otological diseases in 173 patients (pts) with Turner syndrome (TS). STUDY DESIGN: One hundred and seventy-three pts, mean chronological age (CA) 12+/-6.2 yr. Patients were submitted to different therapies: GH, estrogen therapy (EE), no therapy (no tx). Seventy-nine pts (CA 11 yr) had no otological diseases. Conductive hearing loss (CHL) occurred in 38.7% (CA 11 yr) and otoscopy was: persistent secretory otitis media in 55.2%, chronic otitis media in 10.4%, pars flaccida retraction pocket in 19.4%, mostly bilateral. Cholesteatoma was present in 15%. Sensorineurinal hearing loss (SNHL) occurred in 15.6% (CA 16 yr), 11 of whom were affected by high tone loss, and 15 by loss in midfrequencies (dip between 0.5-3 kHz), bilateral in 93%. Degree of hearing loss (HL) was mild [20-40 decibel hearing level (dBHL)] in 15%, moderate (45-60 dBHL) in 31%, severe (65-80 dBHL) in 8%, profound (dBHL>85) in 2%. We found a significant association between CHL and karyotype 45, X (p

Published
2008

28. Comparative evaluation of ABR abnormalities in patients with and without neurinoma of VIII cranial nerve.

Author

Montaguti M, Bergonzoni C, Zanetti MA, and Rinaldi Ceroni A

Subjects
Adult, Female, Humans, Male, Retrospective Studies, Evoked Potentials, Auditory, Brain Stem physiology, Neuroma, Acoustic diagnosis, Neuroma, Acoustic physiopathology
Abstract

Although the diagnostic reliability of auditory brainstem responses (ABR) in acoustic neuromas has been revised due to its poor sensitivity (demonstrated above all in smaller tumours), and its limited specificity, this method is still used as the initial otoneurological approach. To contribute to the clinical use of this method, in particular with the aim of reducing the number of false positives, a retrospective study was carried out in two groups of patients affected by unilateral sensorineural hearing loss with auditory brainstem response abnormalities: in the first group (50 cases: true positives) hearing loss was the expression of an acoustic neuroma shown by magnetic resonance imaging, in the second group (130: false positives) magnetic resonance imaging was negative. In both groups, auditory brainstem response recordings showed abnormalities suggesting retro-cochlear disorders such as: (1) complete absence of response not justified by the extent of the hearing loss, (2) presence of only wave I, (3) increase in wave V absolute latency with normal I-V interpeak latency, (4) increase in wave V absolute latency, the sole component, 5) increase in wave V absolute latency and I-V interpeak latency. A comparison between the two groups made it possible to show that the finding of "major" auditory brainstem response alterations (complete absence of response not justified by the extent of the hearing loss or presence of only wave I) is correlated with a high probability of the presence of a neuroma, while other abnormalities (wave V latency and I-V interpeak latency increase) have no particular predictive value since percentages are almost identical in the two groups. Wave V latency increase with normal I-V interpeak latency was observed in only one case of acoustic neuroma and this clinical finding is not easy to interpret. It would not appear possible, based on current knowledge, to further improve the reliability of this test, and, therefore, its use in oto-neurological diagnostics remains limited.

Published
2007

29. [Computerized stabilometry in the monitoring of antiepileptic therapy in children].

Author

Franzoni E, Crisanti AF, Arcuri S, Buccolieri M, and Bergonzoni C

Subjects
Anticonvulsants adverse effects, Carbamazepine adverse effects, Carbamazepine therapeutic use, Child, Diagnosis, Computer-Assisted, Drug Monitoring, Epilepsies, Partial drug therapy, Epilepsy, Generalized drug therapy, Humans, Phenobarbital adverse effects, Phenobarbital therapeutic use, Phenytoin adverse effects, Phenytoin therapeutic use, Posture, Valproic Acid adverse effects, Valproic Acid therapeutic use, Anticonvulsants therapeutic use, Epilepsy drug therapy, Postural Balance drug effects
Abstract

Computerized stabilometry is an useful test to monitor postural effects of anticonvulsant therapy in adults. Our study was carried out on 65 epileptic children: 51 were treated with CBZ or PHT or VPA or PB in monotherapy, and 14 were not on therapy, in the aim to observe abnormalities of postural control in pediatric population. Computerized stabilometry has to be considered auxiliary monitoring to evaluate toxic effect of anticonvulsant therapy in children.

Published
1995

30. [Metastatic localizations in the parotid glands of primary tumors in other areas].

Author

Casolino D, Vitelli N, and Bergonzoni C

Subjects
Adenocarcinoma pathology, Adult, Aged, Aged, 80 and over, Breast Neoplasms, Carcinoma, Intraductal, Noninfiltrating pathology, Colonic Neoplasms, Female, Humans, Male, Parotid Gland pathology, Parotid Neoplasms pathology, Adenocarcinoma secondary, Carcinoma, Intraductal, Noninfiltrating secondary, Parotid Neoplasms secondary
Published
1988

31. [Otoneurological findings in sleep apnea syndrome].

Author

Bergonzoni C, Tartari F, Cirignotta F, and Rinaldi Ceroni A

Subjects
Adult, Evoked Potentials, Auditory, Humans, Male, Middle Aged, Saccades, Audiometry, Evoked Response, Electronystagmography, Sleep Apnea Syndromes physiopathology
Published
1988

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