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author = "Landi, A."
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Found 7 documents, displaying page 1 of 1

Value of the Tinel sign in brachial plexus lesions.

Author(s) : Landi, A. , Copeland, S.
Description :
Repository : Europe PubMed Central
Language(s) : English

Spin-lattice relaxation of Fe3+ in ZnS ; experimental evidence for optical phonons

Author(s) : Deville, A. , Gaillard, B. , Blanchard, C. , Landi, A.
Description : The spin-lattice relaxation of the Fe3+ ion in cubic ZnS has been studied between 1.3 and 300 K by pulse saturation, progressive saturation and broadening of the E.P.R. line. In ZnS, the Fe3+ ion is more strongly coupled to the lattice than the isoelectronic ion Mn2+. For T > 50 K, the optical phono...
Repository : HAL - Hyper Article on Line
Language(s) : English

Influence of the Jahn-Teller effect on the Zeeman splittings of the 4T2 level of Mn2+ in ZnS

Author(s) : Landi, A. , Deville, A. , Ranvaud, R.
Description : The Zeeman effect has been used to analyse the fine structure of the lowest 4T2 level of Mn2+ in ZnS. We have measured the Zeeman splittings and the relative intensities for different polarizations in a 100 kG superconducting magnet. In order to interpret the experimental spectra, a cluster model is...
Repository : HAL - Hyper Article on Line
Language(s) : English

Transient E.S.R. absorption in Eu0.4Sr0.6S, in the paramagnetic phase, near the spin-glass temperature : the exchange reservoir

Author(s) : Deville, A. , Blanchard, C. , Landi, A.
Description : In the insulating spin-glass material EU0.4Sr0.6S, the transient E.S.R. absorption following a strong r.f. pulse has been studied at X band for T ≳ Tg. The signal was found to depend strongly upon the experimental conditions (energy of the r.f. pulse, value of the driving magnetic field). At 4.2 K a...
Repository : HAL - Hyper Article on Line
Language(s) : English

Spinal schwannomatosis in the absence of neurofibromatosis: A very rare condition

Author(s) : Landi, A. , Dugoni, D.E. , Marotta, N. , Mancarella, C. , Delfini, R.
Description : Schwannomatosis is defined as an extremely rare tumors syndrome characterized by the presence of multiple schwannomas in the absence of typical signs of NF1 and NF2 syndromes. The genetic and molecular analysis performed on these tumors makes it possible to name schwannomatosis as distinct clinical ...
Repository : Europe PubMed Central
Language(s) : English

Five-year outcome of stand-alone fusion using carbon cages in cervical disc arthrosis

Author(s) : Marotta, N. , Landi, A. , Tarantino, R. , Mancarella, C. , Ruggeri, A. , Delfini, R.
Description : From January 1, 2001 to December 31, 2003, in the Neurosurgery Department of Rome University o “Sapienza,” 167 patients underwent anterior surgery for cervical spondylodiscoarthrosis. The levels treated by the anterior stand-alone technique were: C3–C4 (11%), C4–C5 (19%), C5–C6 (40%), and C6–C7 (30%...
Repository : Europe PubMed Central
Language(s) : English

The use of platelet gel in postero-lateral fusion: preliminary results in a series of 14 cases

Author(s) : Landi, A. , Tarantino, R. , Marotta, N. , Ruggeri, A. G. , Domenicucci, M. , Giudice, L. , Martini, S. , Rastelli, M. , Ferrazza, G.
Description : Over the last few years, some hemocomponents have been used advantageously in clinical neurosurgical practice, not systemically via transfusion but topically as a sealant (fibrin glue). This has diverted the attention of many authors to the role of platelets in the healing process. The combination o...
Repository : Europe PubMed Central
Language(s) : English
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Found 7 documents, displaying page 1 of 1