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Search Results: 1 - 10 of 3193 matches for " Francesca Bellucci "
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The effect of sand-blasting and hydrofluoric acid etching on Ti CP2 and Ti CP4 surface topography  [PDF]
Tullio Monetta, Francesco Bellucci
Open Journal of Regenerative Medicine (OJRM) , 2012, DOI: 10.4236/ojrm.2012.13007
Abstract: Titanium is widely used in biomedical applications from many years for its interesting properties, nevertheless there are a large number of researchers studying the way to improve the performances of biomedical devices. A large number of papers concern the study of “commercially pure titanium” (Ti CP) but, very often, no details are indicated regarding: 1) the type of Ti CP used; 2) the sandblasting process; and 3) the analytic evaluation of surface topography. In this paper, the effect of sandblasting duration (1, 2, 4, 8 min) and hydrofluoric acid (HF) etching, as well as their combined or synergic effect, on the surface topography of CP grade 2 and grade 4, have been investigated. Results obtained show that sandblasting treatment duration should be different for Ti CP grade 2 and Ti CP grade 4 to achieve similar topography. The shape of the surface is highly modified after acid etching. The latter produces “peaks” when applied to not sand- blasted coupons, whilst cuts the “top of the peaks” in the sandblasted samples. Further we confirm that, the roughness parameter Ra (or Sa), is not sufficient to describe “the surface status” and we propose to use additional para- meters like: Sq, Sku and Ssk, to unequivocally describe surface topography of implants as well as well defined test procedures.
Comparative efficacy of topical tetracaine solution versus lidocaine gel in cataract surgery
Bellucci R, Bellucci F
Open Access Surgery , 2012, DOI: http://dx.doi.org/10.2147/OAS.S14721
Abstract: mparative efficacy of topical tetracaine solution versus lidocaine gel in cataract surgery Review (2196) Total Article Views Authors: Bellucci R, Bellucci F Published Date February 2012 Volume 2012:5 Pages 1 - 8 DOI: http://dx.doi.org/10.2147/OAS.S14721 Received: 19 December 2011 Accepted: 10 January 2012 Published: 02 February 2012 Roberto Bellucci1, Francesco Bellucci2 1Ophthalmic Unit, Department of Neurosciences, Hospital and University of Verona, Verona, Italy; 2Faculty of Psychology, University of Parma, Parma, Italy Background: Cataract surgery is mainly performed under topical anesthesia achieved either by tetracaine solution (0.5%–1.0%) or gel (0.5%), or by 2% lidocaine gel. This paper reviews the current knowledge about these two drugs, with special emphasis on a published prospective comparison between them. Methods: The main pharmacological aspects of topical anesthetic agents are summarized, explaining the difference between the ester (tetracaine) and the amide (lidocaine) compounds. Tetracaine is available as single-use eye drops, or as a multidose gel containing benzalkonium chloride, a preservative not contained in the multidose lidocaine gel. A literature search was performed, using “tetracaine”, “tetracaine gel”, “lidocaine”, “lidocaine gel”, “lidocaine jelly”, and “cataract surgery” as keywords, and compiling cross-references. A total of 25 studies were identified and included in this review. Of them, seven were uncontrolled studies describing different experiences with the drugs of interest, and 18 were controlled studies. Six studies directly compared tetracaine eye drops or gel with lidocaine gel before cataract surgery. Results: Both tetracaine solution and gel and lidocaine gel proved to be effective in providing analgesia before cataract surgery. Both drugs were comparable with needle injection anesthesia when intracameral lidocaine was added to topical treatment. Direct comparisons indicate better activity for tetracaine when used at the 1% concentration in single-dose units, or in the gel form at a 0.5% concentration. Patients showed a slight preference for the agent that caused the least discomfort when administered (lidocaine), while the surgical complication rate and the surgeon satisfaction were the same with either drug. Conclusion: Tetracaine solution and lidocaine gel were equally effective in providing topical anesthesia for cataract surgery in the published studies. Tetracaine was found to be better than lidocaine only if augmented by either increasing the concentration to 1% (solution) or by increasing the penetration by adding benzalkonium chloride (gel).
Comparative efficacy of topical tetracaine solution versus lidocaine gel in cataract surgery
Bellucci R,Bellucci F
Open Access Surgery , 2012,
Abstract: Roberto Bellucci1, Francesco Bellucci21Ophthalmic Unit, Department of Neurosciences, Hospital and University of Verona, Verona, Italy; 2Faculty of Psychology, University of Parma, Parma, ItalyBackground: Cataract surgery is mainly performed under topical anesthesia achieved either by tetracaine solution (0.5%–1.0%) or gel (0.5%), or by 2% lidocaine gel. This paper reviews the current knowledge about these two drugs, with special emphasis on a published prospective comparison between them.Methods: The main pharmacological aspects of topical anesthetic agents are summarized, explaining the difference between the ester (tetracaine) and the amide (lidocaine) compounds. Tetracaine is available as single-use eye drops, or as a multidose gel containing benzalkonium chloride, a preservative not contained in the multidose lidocaine gel. A literature search was performed, using “tetracaine”, “tetracaine gel”, “lidocaine”, “lidocaine gel”, “lidocaine jelly”, and “cataract surgery” as keywords, and compiling cross-references. A total of 25 studies were identified and included in this review. Of them, seven were uncontrolled studies describing different experiences with the drugs of interest, and 18 were controlled studies. Six studies directly compared tetracaine eye drops or gel with lidocaine gel before cataract surgery.Results: Both tetracaine solution and gel and lidocaine gel proved to be effective in providing analgesia before cataract surgery. Both drugs were comparable with needle injection anesthesia when intracameral lidocaine was added to topical treatment. Direct comparisons indicate better activity for tetracaine when used at the 1% concentration in single-dose units, or in the gel form at a 0.5% concentration. Patients showed a slight preference for the agent that caused the least discomfort when administered (lidocaine), while the surgical complication rate and the surgeon satisfaction were the same with either drug.Conclusion: Tetracaine solution and lidocaine gel were equally effective in providing topical anesthesia for cataract surgery in the published studies. Tetracaine was found to be better than lidocaine only if augmented by either increasing the concentration to 1% (solution) or by increasing the penetration by adding benzalkonium chloride (gel).Keywords: tetracaine, tetracaine gel, lidocaine, lidocaine gel, cataract surgery
Celiac Disease and Overweight in Children: An Update
Antonella Diamanti,Teresa Capriati,Maria Sole Basso,Fabio Panetta,Vincenzo Maria Di Ciommo Laurora,Francesca Bellucci,Fernanda Cristofori,Ruggiero Francavilla
Nutrients , 2014, DOI: 10.3390/nu6010207
Abstract: The clinical presentation of celiac disease in children is very variable and differs with age. The prevalence of atypical presentations of celiac disease has increased over the past 2 decades. Several studies in adults and children with celiac disease indicate that obesity/overweight at disease onset is not unusual. In addition, there is a trend towards the development of overweight/obesity in celiac patients who strictly comply with a gluten-free diet. However, the pathogenesis and clinical implications of the coexistence of classic malabsorption (e.g., celiac disease) and overweight/obesity remain unclear. This review investigated the causes and main clinical factors associated with overweight/obesity at the diagnosis of celiac disease and clarified whether gluten withdrawal affects the current trends of the nutritional status of celiac disease patients.
INAVEM : un parcours professionnel d’écoute et d’aide aux victimes / INAVEM: a professional way of listening to and helping victims of crime
Bellucci Sabrina
Rivista di Criminologia, Vittimologia e Sicurezza , 2012,
Abstract: It is only in the last 20 years that support for victims of crime has received attention. The French history of associations dedicated to victims of crime is based on INAVEM (Institut National d’Aide aux Victimes et de Médiation – National Institute for Victims of Crime and Mediation): indeed, an associative network and its federation devoted to a mission of general interest and public service, constitute a French specificity. In France, the enforcement of the public policy to help and support victims of crime relies on associations, the most of which joined the INAVEM. L’aide aux victimes a longtemps été méconnue, elle s’est construite progressivement et a connu un essor considérable au cours de ces vingt dernières années. L’histoire associative fran aise au service de la cause des victimes se fonde sur l’INAVEM (Institut National d’Aide aux Victimes et de Médiation) : en effet, un réseau associatif et sa fédération en charge d’une mission d’intérêt général, de service public, constitue une spécificité fran aise. La mise en uvre de la politique publique d’aide aux victimes repose en France sur des structures associatives, la plupart adhérentes à l’INAVEM.
Margaret Mead: la costruzione culturale dell'identità di genere
Silvia Bellucci
Antrocom : Online Journal of Anthropology , 2009,
Abstract: Il lavoro che segue si propone di analizzare il concetto di differenza di genere così come è stato affrontato dall’antropologa statunitense Margaret Mead nel proprio saggio Sesso e temperamento in tre società primitive (1935), ripreso successivamente nelle analisi compiute dall’antropologa Mila Busoni in Genere, sesso, cultura (2000). In particolare, si analizza il rapporto tra il temperamento attribuito a ciascun sesso e i condizionamenti culturali e sociali che ne sono alla base. Il lavoro svolto costituisce l’elaborato finale prodotto per il corso in “Cultura di genere e delle pari opportunità”, svoltosi nel 2008 presso la Facoltà di Lettere e Filosofia dell’Università di Perugia.
Pion (Kaon) and Sigma polarizabilities
S. Bellucci
Physics , 1995,
Abstract: We report the results of the working group on ``Pion (Kaon) and Sigma Polarizabilities''. Interesting possibilities to measure these polarizabilities include the radiative pion photoproduction in the MAMI experiment at Mainz, as well as at the GRAAL facility (actually the latter is being considered for an experimental determination of the pion polarizabilities here for the first time), the experimental plans on Primakoff effect at FNAL, and the measurements at the Frascati $\Phi$-factory DA$\Phi$NE.
eta->pi0 pi0 gamma gamma to 1-Loop in ChPT
S. Bellucci
Physics , 1996,
Abstract: 1. Introduction: a) motivations, b) status, c) purpose, d) results 2. Kinematics and couplings 3. Decay amplitude (analytic expression): a) tree level, b) one loop 4. Decay width (numerical): a) diphoton energy spectrum [energy cut] 5. Discussion: detectability of chiral loop effects (background suppression)
Long-range interactions in a one-dimensional electron system
S. Bellucci
Physics , 1998,
Abstract: We study the unscreened Coulomb interaction in a one-dimensional electron system at low-energy. We use renormalization group methods and a GW approximation, in order to analyze the model. This yields both a strong wavefunction renormalization and a renormalization of the Fermi velocity. The significance of the effects depends on the filling level of the Fermi system. Despite the long-range character of the interaction, the system still falls into the Luttinger liquid universality class, since the effective couplings remain bounded at arbitrarily low energies.
Physics Cahiers No. 1
S. Bellucci
Physics , 1996,
Abstract: We begin herewith the editing of physics notes taken in the course of Journal Club seminars at INFN-LNF in 1996. The activity consists of informal talks about work in progress and/or review of (more or less) recent physics results of interest to our laboratory. In the section titles the name of the speakers appear, together with the topics discussed in the seminars. We plan to publish these notes twice a year.
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