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143 results on '"Magli R"'

1. Microscopic structure of liquid hydrogen: a neutron diffraction experiment

Author

Celli, M., Bafile, U., Cuello, G. J., Formisano, F., Guarini, E., Magli, R., Neumann, M., and Zoppi, M.

Subjects
Condensed Matter - Soft Condensed Matter
Abstract

We have measured the center-of-mass structure factor S(k) of liquid para-hydrogen by neutron diffraction, using the D4C diffractometer at the Institute Laue Langevin, Grenoble, France. The present determination is at variance with previous results obtained from inelastic neutron scattering data, but agrees with path integral Monte Carlo simulations., Comment: 4 pages, 2 figures

Published
2002

7. Fluid geochemistry and mineral chemistry of high PCO2 systems : a lesson from the PSS1 bore-well at Caprese Michelangelo (Eastern Tuscany)

Author

Bicocchi, G., Vaselli, O., Tassi, F., Ruggieri, G., Buccianti, A., Capecchiacci, F., Montegrossi, G., Nisi, B., Bonini, M., and Magli, R.

Subjects
Settore GEO/08 - Geochimica e Vulcanologia, Settore FIS/01 - Fisica Sperimentale, Carbon dioxide sequestration, small angle neutron scattering, geochemical modeling, Settore FIS/03 - Fisica della Materia
Published
2011

11. Sentinel node detection in breast cancer by high resolution portable camera

Author

Amanti, Claudio, Lombardi, Augusto, Maggi, Stefano, LO RUSSO, Marzia, Moscaroli, A., Magli, R., Pezzatini, M., Scopinaro, Francesco, Tofani, A., and Soluri, A.

Subjects
radio-guided surgery, hand held, imaging probe
Abstract

Introduction: Sentinel node (SN) biopsy isa widely used method for breast cancer staging by surgeons of several institutions. Lymphoscintigrafy (LS) is generally preferred but some surgeons suggest the use both radioactive colloids and blue vital dye Removal ofsentinel node with radio-guided surgery isalso arather easy and fast method. Some problems can probably be overcome by using a portable imaging device in the operation theatre High resolution (HR), small field of view (FOV) gamma cameras have been the object of our studies since early nineties, just after Hamamatsu developed the first position sensitive photomultiplier tube (PSPMT). The aim of the present study is to demonstrate that surgery removes the mammary SN quicker and with greater precision when using IP and con- ventional probe together, as opposed to conventional probe only. Patients and methods: We enrolled 100 consecutive patients (average age 50,3 ± 9) with T1 breast cancer and clinically negative nodes who had been scheduled for conservative surgery with SN biopsy. These patients were divided into 2 groups of 50 patients: group A in which the SN was detected only with a conventional probe (Neoprobe 2000, Ethicon US(, group B in which detection of SN was carried out with both conventional probe and IP. Though the patients were consecutive, the two groups were age matched and the percentage of obese patients was similar in the two groups: Sentinel node detection and biopsy: After induction of general anaesthesia in the operation room, in group Athe gamma-detecting probe protected by a sterile glove was passed over the axilla's starting from the skin mark drawn with LS, in order to locate SN. A small transverse axillary's incision was then made, and hot nodes were isolated under the guidance of the probe. Each radioactive lymph node was removed. In group B the IP was passed over the axilla's to locate SN. IP detection also started from the skin marks, however dependence on marks was less strict, because2 to 4 positions of IP are able to scan the entire field. High resolution camera: Present series was carried out with the one inch2 IP 824 (Li-Tech, Italy) which is an improved version of other IP we have already used. Results are sumarized in table 1

Published
2006

15. Neutron Diffraction Study of Quantum Effects on the Pair Correlation

Author

Guarini E., Barocchi F., Celli M., Fischer H. E., Magli R., and Zoppi M.

Abstract

An extensive neutron diffraction investigation on low-density (n < 4.35 nm-3) states of helium gas along the 6-K isotherm has been performed by means of both wide and small-angle experiments, allowing for the extraction of the zero- and first-order density coefficients of c(k), the Fourier transform of the direct correlation function, in a very wide wavevector region extending from k = 1 nm-1 to k = 160 nm-1. The two independent measurements provide quantitatively consistent results, and the experimental quantities show a good agreement with the thermodynamic (i.e. k = 0) data. The comparison of the experimental pure two-body correlation with the corresponding result of a classical calculation clearly indicates the need of a quantum-mechanical approach.

Published
2002

22. Long range potential effects in low density krypton gas

Author

Formisano, F. (author), Benmore, C.J. (author), Bafile, U. (author), Barocchi, F. (author), Egelstaff, P.A. (author), Magli, R. (author), Verkerk, P. (author), Formisano, F. (author), Benmore, C.J. (author), Bafile, U. (author), Barocchi, F. (author), Egelstaff, P.A. (author), Magli, R. (author), and Verkerk, P. (author)

Published
1997

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