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24篇 您的检索式:作者名="Politis B"
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1Competition between fusion-evaporation and multifragmentation in central collisions in ^(58)Ni+^(48)Ca at 25A MeV显示文摘The experimental data concerning the58Ni+48Ca reaction at Elab(Ni)=25A MeV,collected by using the CHIMERA 4π device,have been analyzed in order to investigate the competition among different reaction mechanisms for central collisions in the Fermi energy domain.As a main criterion for centrality selection we have chosen the flow angle(flow) method,making an event-by-event analysis that considers the shape of events,as it is determined by the eigenvectors of the experimental kinetic-energy tensor.For the selected central events(flow >60°) some global variables,good to characterize the pattern of central collisions have been constructed.The main features of the reaction products were explored by using different constraints on some of the relevant observables,like mass and velocity distributions and their correlations.Much emphasis was devoted,for central collisions,to the competition between fusion-evaporation processes with subsequent identification of a heavy residue and a possible multifragmentation mechanism of a well defined(if any) transient nuclear system.Dynamical evolution of the system and pre-equilibrium emission were taken into account by simulating the reactions in the framework of transport theories.Different approaches have been envisaged(dynamical stochastic BNV calculations + sequential SIMON code,QMD,CoMD,etc.).Preliminary comparison of the experimental data with BNV calculations shows reasonable agreement with the assumption of sequential multifragmentation emission in the mass region of IMFs close to the heavy residues.Possible deviations from sequential processes were found for those IMFs in the region of masses intermediate between the mass of heavy residues and the mass of light IMFs.Further simulations are in progress.The experimental analysis will be enriched also by information obtained inspecting the IMF-IMF correlation function,in order to elucidated the nature of space-time decay property of the emitting source associated with events having the largest IMF multiplicity.FRANCALANZA L ABBONDANNO U AMORINI F BARLINI S BINI M BOUGAULT R BRUNO M CARDELLA G CASINI G AGOSTINO M D' De FILIPPO V De SANCTIS J GERACI E GIUSSANI A GRAMEGNA F GUIOT B KRAVCHUK V La GUIDARA E LANZALONE G Le NEINDRE N MAIOLINO C MARINI P MORELLI L OLMI A PAGANO A PAPA M PIANTELLI S PIRRONE S POLITI G POGGI G PORTO F RUSSOTTO P RIZZO F VANNINI G VANNUCCI L 2013Nuclear Science and Techniques2013,24,5:2
2Structural properties and bandgap bowing of ZnO S thin films deposited by reactive sputtering显示文摘Meyer B K Polity A Farangis B et aI 2004Applied Physics Letters2004,85,21:1
3Seizures in the critically ill:the role of imipenem显示文摘Koppel B S Hauser W A Politis C 2002Epilepsia2002,42,12:1
4Crystallization and X-ray diffraction measurements of a thermophilic archaeal recombinant amidase from Sulfolobus solfataricus MT4显示文摘Nastopoulos V Vallone B Politi L 2001Acta Crystallogr D Biol Crystallogr2001,57,7:1
5Sinus and venous thrombosis-differential diagnosis of acute stroke显示文摘Grunwald IQ Politi M Holst B 2005Radiologe2005,45,5:1
6Seizures in the critically ill:the role of imipenem显示文摘Koppel B S Hauser W A Politis C 2001Epilepsia2001,42,12:1
7Seizures in the critically ill: the role of imipenem 显示文摘KOPPEL B S HAUSER W A POLITIS C 2001Epilepsia2001,42,12:1
8Plant genotype affects total antioxidant capacity and phenolic content in fruit 显示文摘Scalzo J Politi A Pellegrini N Mezzetti B Battino M 2005Nutrition2005,21,:1
9Characterization of RF reactively sputtered Cu-ln-S thin films 显示文摘He Y B Polity A Gregor R 2001Physica B2001,,:1
10Bexarotene via CBP/p300 in- duces suppression of NF - KB - dependent cell growth and invasion in thyroid cancer显示文摘Cras A Politis B Balitrand N 2012Clin Cancer Rcs2012,18,2:1
11Preparation and characterization of highly ( 1 1 2)-oriented CuInS2 films deposited by a one-stage RF reactive sputtering process 显示文摘He Y B Kramer T Polity A Gregor R Kriegseis W Osterreieher I Hasselkamp D Meyer B K 2003Thin Solid Films2003,431,432:1
12Plant genotype affects total antioxidant capacity and phenolic contents in fruit显示文摘Scalzo J Politi A Pellegrini N Mezzetti B Battino M 2005Nutrition2005,21,2:1
13Subcloning the MAC-T bovine mammary epithelial cell line:morphology,growth properties,and cytogenetic analysis of clonal cells显示文摘Zavizion B Gorewit R C Politis I 1995Journal of Dairy Science1995,78,3:1
14Study on CuInS2 thin films deposited by RF reactive sputtering 显示文摘He Y B Polity A Alves H R 2002Thin Solid Films2002,,:1
15Retina stem cells,hopes and obstacles显示文摘Retinal degeneration is a major contributor to visual dysfunction worldwide.Although it comprises several eye diseases,loss of retinal pigment epithelial(RPE)and photoreceptor cells are the major contributors to their pathogenesis.Early therapies included diverse treatments,such as provision of anti-vascular endothelial growth factor and many survival and trophic factors that,in some cases,slow down the progression of the degeneration,but do not effectively prevent it.The finding of stem cells(SC)in the eye has led to the proposal of cell replacement strategies for retina degeneration.Therapies using different types of SC,such as retinal progenitor cells(RPCs),embryonic SC,pluripotent SCs(PSCs),induced PSCs(iPSCs),and mesenchymal stromal cells,capable of self-renewal and of differentiating into multiple cell types,have gained ample support.Numerous preclinical studies have assessed transplantation of SC in animal models,with encouraging results.The aim of this work is to revise the different preclinical and clinical approaches,analyzing the SC type used,their efficacy,safety,cell attachment and integration,absence of tumor formation and immunorejection,in order to establish which were the most relevant and successful.In addition,we examine the questions and concerns still open in the field.The data demonstrate the existence of two main approaches,aimed at replacing either RPE cells or photoreceptors.Emerging evidence suggests that RPCs and iPSC are the best candidates,presenting no ethical concerns and a low risk of immunorejection.Clinical trials have already supported the safety and efficacy of SC treatments.Serious concerns are pending,such as the risk of tumor formation,lack of attachment or integration of transplanted cells into host retinas,immunorejection,cell death,and also ethical.However,the amazing progress in the field in the last few years makes it possible to envisage safe and effective treatments to restore vision loss in a near future.Olga L German Harmonie Vallese-Maurizi Tamara B Soto Nora P Rotstein Luis Enrique Politi 2021World Journal of Stem Cells2021,13,10:1
16Biologically based complementary and alternative medicine use among breast cancer survivors:relationship to dietary fat consumption and exercise显示文摘Politi MC Rabin C Pinto B 2006Support Care Cancer2006,14,10:1
17Seizures in the critically in : the role of imipenem 显示文摘KOPPEL B S HAUSER W A POLITIS C 2001Epilepsia2001,42,12:1
18Subcloning the MAC-T bovine mammary epithelial cell line:morphology,growth properties,and Cytogenetic analysis of clonal cells显示文摘Zavizion B Gorewit R C Politis I 1995Journal of Dairy Science1995,78,3:1
19Facilitated regeneration in the rat peripheral nerve syetem using applied electric fields显示文摘Politis M J Zanakis MF Albala B J 1998J Trauma1998,28,:1
20Structural and optical characteriza of RF reactively sputtered CuInS2 thin films显示文摘He Y B Polity A Alves H R 0,,:1
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