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Prete G, Laeng B, Fabri M, Foschi N, Tommasi L. Right hemisphere or valence hypothesis, or both? The processing of hybrid faces in the intact and callosotomized brain. Neuropsychologia 2015; 68:94-106. [PMID: 25575451 DOI: 10.1016/j.neuropsychologia.2015.01.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 12/20/2014] [Accepted: 01/03/2015] [Indexed: 11/19/2022]
Abstract
The valence hypothesis and the right hemisphere hypothesis in emotion processing have been alternatively supported. To better disentangle the two accounts, we carried out two studies, presenting healthy participants and an anterior callosotomized patient with 'hybrid faces', stimuli created by superimposing the low spatial frequencies of an emotional face to the high spatial frequencies of the same face in a neutral expression. In both studies we asked participants to judge the friendliness level of stimuli, which is an indirect measure of the processing of emotional information, despite this remaining "invisible". In Experiment 1 we presented hybrid faces in a divided visual field paradigm using different tachistoscopic presentation times; in Experiment 2 we presented hybrid chimeric faces in canonical view and upside-down. In Experiments 3 and 4 we tested a callosotomized patient, with spared splenium, in similar paradigms as those used in Experiments 1 and 2. Results from Experiments 1 and 3 were consistent with the valence hypothesis, whereas results of Experiments 2 and 4 were consistent with the right hemisphere hypothesis. This study confirms that the low spatial frequencies of emotional faces influence the social judgments of observers, even when seen for 28 ms (Experiment 1), possibly by means of configural analysis (Experiment 2). The possible roles of the cortical and subcortical emotional routes in these tasks are discussed in the light of the results obtained in the callosotomized patient. We propose that the right hemisphere and the valence accounts are not mutually exclusive, at least in the case of subliminal emotion processing.
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Schmidt K, Kim EJ, Wuenschel S, Barbui M, Natowitz JB, Hagel K, Wada R, Bottosso C, Giuliani G, Qin L, Kohley Z, Bonasera A, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Rodrigues MRD, Fabris D, Moretto S, Pesente S, Viesti G, Cinausero M, Prete G, Nebbia G, Keutgen T, El Masri Y, Majka Z, Ma YG. Clustering in alpha conjugate nuclei. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158800024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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53
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de Angelis G, Prete G, Andrighetto A, Manzolaro M, Corradetti S, Scarpa D, Rossignoli M, Monetti A, Lollo M, Calderolla M, Vasquez J, Zafiropoulos D, Sarchiapone L, Benini D, Favaron P, Rigato M, Pegoraro R, Maniero D, Calabretta L, Comunian M, Maggiore M, Lombardi A, Piazza L, Porcellato A, Roncolato C, Bisoffi G, Pisent A, Galatà A, Giacchini M, Bassato G, Canella S, Gramegna F, Valiente J, Bermudez J, Mastinu P, Esposito J, Wyss J, Russo A, Zanella S. The SPES project of INFN: Facility and detectors. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158800011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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54
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Prete G, Fabri M, Foschi N, Brancucci A, Tommasi L. The “consonance effect” and the hemispheres: A study on a split-brain patient. Laterality 2014; 20:257-69. [DOI: 10.1080/1357650x.2014.959525] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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55
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Prete G, Marzoli D, Brancucci A, Fabri M, Foschi N, Tommasi L. The processing of chimeric and dichotic emotional stimuli by connected and disconnected cerebral hemispheres. Behav Brain Res 2014; 271:354-64. [PMID: 24971689 DOI: 10.1016/j.bbr.2014.06.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 06/16/2014] [Accepted: 06/18/2014] [Indexed: 11/26/2022]
Abstract
Hemispheric asymmetries have been widely explored in both the visual and the auditory domain, but little is known about hemispheric asymmetries in audio-visual integration. We compared the performance of a partially callosotomized patient, a total split-brain patient and a control group during the evaluation of the emotional valence of chimeric faces and dichotic syllables (an emotional syllable in one ear and white noise in the other ear) presented unimodally (only faces or only syllables) or bimodally (faces and syllables presented simultaneously). Stimuli could convey happy and sad expressions and participants were asked to evaluate the emotional content of each presentation, using a 5-point Likert scale (from very sad to very happy). In unimodal presentations, the partially callosotomized patient's judgments depended on the emotional valence of the stimuli processed by the right hemisphere, whereas those of the total split-brain patient showed the opposite lateralization; in these conditions, the control group did not show asymmetries. Moreover, in bimodal presentations, results provided support for the valence hypothesis (i.e., left asymmetry for positive emotions and vice versa) in both the control group and the partially callosotomized patient, whereas the total split-brain patient showed a tendency to evaluate the emotional content of the right hemiface even when asked to focus on the acoustic modality. We conclude that partial and total hemispheric disconnections reveal opposite patterns of hemispheric asymmetry in auditory, visual and audio-visual emotion processing. These results are discussed in the light of the right-hemisphere hypothesis and the valence hypothesis.
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56
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Marzoli D, Prete G, Tommasi L. Perceptual asymmetries and handedness: a neglected link? Front Psychol 2014; 5:163. [PMID: 24592250 PMCID: PMC3938099 DOI: 10.3389/fpsyg.2014.00163] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 02/10/2014] [Indexed: 11/16/2022] Open
Abstract
Healthy individuals tend to weigh in more the left than the right side of visual space in a variety of contexts, ranging from pseudoneglect to perceptual asymmetries for faces. Among the common explanations proposed for the attentional and perceptual advantages of the left visual field, a link with the prevalence of right-handedness in humans has never been suggested, although some evidence seems to converge in favor of a bias of spatial attention toward the region most likely coincident with another person's right hand during a face-to-face interaction. Such a bias might imply an increased efficiency in monitoring both communicative and aggressive acts, the right limb being more used than the left in both types of behavior. Although attentional and perceptual asymmetries could be linked to right-handedness at the level of phylogeny because of the evolutionarily advantage of directing attention toward the region where others' dominant hand usually operates, it is also legitimate to question whether, at the ontogenetic level, frequent exposure to right-handed individuals may foster leftward biases. These views are discussed in the light of extant literature, and a number of tests are proposed in order to assess our hypotheses.
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Manzolaro M, Andrighetto A, Meneghetti G, Monetti A, Scarpa D, Rossignoli M, Vasquez J, Corradetti S, Calderolla M, Prete G. Ongoing characterization of the forced electron beam induced arc discharge ion source for the selective production of exotic species facility. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02B918. [PMID: 24593623 DOI: 10.1063/1.4857175] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An intense research and development activity to finalize the design of the target ion source system for the selective production of exotic species (SPES) facility (operating according to the isotope separation on line technique) is at present ongoing at Legnaro National Laboratories. In particular, the characterization of ion sources in terms of ionization efficiency and transversal emittance is currently in progress, and a preliminary set of data is already available. In this work, the off-line ionization efficiency and emittance measurements for the SPES forced electron beam induced arc discharge ion source in the case of a stable Ar beam are presented in detail.
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Scarpa D, Makhathini L, Tomaselli A, Grassi D, Corradetti S, Manzolaro M, Vasquez J, Calderolla M, Rossignoli M, Monetti A, Andrighetto A, Prete G. Photo-ionization of aluminum in a hot cavity for the selective production of exotic species project. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02B908. [PMID: 24593613 DOI: 10.1063/1.4828722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
SPES (Selective Production of Exotic Species) is an Isotope Separation On-Line (ISOL) based accelerator facility that will be built in the Legnaro-Istituto Nazionale di Fisica Nucleare (INFN) Laboratory (Italy), intended to provide intense neutron-rich radioactive ion beams obtained by proton-induced fission of a uranium carbide (UCx) target. Besides this main target material, silicon carbide (SiC) will be the first to be used to deliver p-rich beams. This target will also validate the functionality of the SPES facility with aluminum beam as result of impinging SiC target with proton beam. In the past, off line studies on laser photoionization of aluminum have been performed in Pavia Spectroscopy Laboratory and in Laboratori Nazionali di Legnaro; a XeCl excimer laser was installed in order to test the laser ionization in the SPES hot cavity. With the new Wien filter installed a better characterization of the ionization process in terms of efficiency was performed and results are discussed.
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Praena J, Pignatari M, Mastinu P, Martín-Hernández G, Prete G, Quesada J, Sabaté-Gilarte M. Current quests in nucleosynthesis: present and future neutron-induced reaction measurements. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146607022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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60
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Cinausero M, Kravchuk V, Marchi T, Gramegna F, Collazuol G, de Angelis G, Prete G, Wildner E, Palladino V, Mezzetto M. Angular Distribution and Cross Section Measurement of the 6Li( 3He,n) 8B Reaction at 5.8 MeV. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146603048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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61
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Depalo R, Caciolli A, Marchi T, Appannababu S, Blasi N, Broggini C, Camera F, Cinausero M, Collanzuol G, Fabris D, Gramegna F, Kravchuk VL, Leone M, Lombardi A, Mastinu P, Menegazzo R, Montagnoli G, Prete G, Rigato V, Rossi Alvarez C, Wieland O. Measurement of the 25Mg( α,n) 28Si reaction cross section at LNL. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146607002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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62
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Prete G, Laeng B, Tommasi L. Lateralized hybrid faces: evidence of a valence-specific bias in the processing of implicit emotions. Laterality 2013; 19:439-54. [PMID: 24345101 DOI: 10.1080/1357650x.2013.862255] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
It is well known that hemispheric asymmetries exist for both the analyses of low-level visual information (such as spatial frequency) and high-level visual information (such as emotional expressions). In this study, we assessed which of the above factors underlies perceptual laterality effects with "hybrid faces": a type of stimulus that allows testing for unaware processing of emotional expressions, when the emotion is displayed in the low-frequency information while an image of the same face with a neutral expression is superimposed to it. Despite hybrid faces being perceived as neutral, the emotional information modulates observers' social judgements. In the present study, participants were asked to assess friendliness of hybrid faces displayed tachistoscopically, either centrally or laterally to fixation. We found a clear influence of the hidden emotions also with lateral presentations. Happy faces were rated as more friendly and angry faces as less friendly with respect to neutral faces. In general, hybrid faces were evaluated as less friendly when they were presented in the left visual field/right hemisphere than in the right visual field/left hemisphere. The results extend the validity of the valence hypothesis in the specific domain of unaware (subcortical) emotion processing.
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63
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Vardaci E, Nitto AD, Nadtochy P, Brondi A, Rana GL, Moro R, Cinausero M, Prete G, Gelli N, Kozulin E, Knyazheva G. Fission dynamics: The quest of a temperature dependent nuclear viscosity. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136207004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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64
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Prete G, D'Ascenzo S, Laeng B, Fabri M, Foschi N, Tommasi L. Conscious and unconscious processing of facial expressions: evidence from two split-brain patients. J Neuropsychol 2013; 9:45-63. [PMID: 24325712 DOI: 10.1111/jnp.12034] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/15/2013] [Indexed: 02/06/2023]
Abstract
We investigated how the brain's hemispheres process explicit and implicit facial expressions in two 'split-brain' patients (one with a complete and one with a partial anterior resection). Photographs of faces expressing positive, negative or neutral emotions were shown either centrally or bilaterally. The task consisted in judging the friendliness of each person in the photographs. Half of the photograph stimuli were 'hybrid faces', that is an amalgamation of filtered images which contained emotional information only in the low range of spatial frequency, blended to a neutral expression of the same individual in the rest of the spatial frequencies. The other half of the images contained unfiltered faces. With the hybrid faces the patients and a matched control group were more influenced in their social judgements by the emotional expression of the face shown in the left visual field (LVF). When the expressions were shown explicitly, that is without filtering, the control group and the partially callosotomized patient based their judgement on the face shown in the LVF, whereas the complete split-brain patient based his ratings mainly on the face presented in the right visual field. We conclude that the processing of implicit emotions does not require the integrity of callosal fibres and can take place within subcortical routes lateralized in the right hemisphere.
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65
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Qin L, Hagel K, Wada R, Natowitz JB, Shlomo S, Bonasera A, Röpke G, Typel S, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Barbui M, Rodrigues MRD, Schmidt K, Fabris D, Lunardon M, Moretto S, Nebbia G, Pesente S, Rizzi V, Viesti G, Cinausero M, Prete G, Keutgen T, El Masri Y, Majka Z, Ma YG. Laboratory tests of low density astrophysical nuclear equations of state. PHYSICAL REVIEW LETTERS 2012; 108:172701. [PMID: 22680857 DOI: 10.1103/physrevlett.108.172701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Indexed: 06/01/2023]
Abstract
Clustering in low density nuclear matter has been investigated using the NIMROD multidetector at Texas A&M University. Thermal coalescence modes were employed to extract densities, ρ, and temperatures, T, for evolving systems formed in collisions of 47A MeV (40)Ar+(112)Sn, (124)Sn and (64)Zn+(112)Sn, (124)Sn. The yields of d, t, (3)He, and (4)He have been determined at ρ=0.002 to 0.03 nucleons/fm(3) and T=5 to 11 MeV. The experimentally derived equilibrium constants for α particle production are compared with those predicted by a number of astrophysical equations of state. The data provide important new constraints on the model calculations.
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66
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Hagel K, Wada R, Qin L, Natowitz JB, Shlomo S, Bonasera A, Röpke G, Typel S, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Bottosso C, Barbui M, Rodrigues MRD, Schmidt K, Fabris D, Lunardon M, Moretto S, Nebbia G, Pesente S, Rizzi V, Viesti G, Cinausero M, Prete G, Keutgen T, El Masri Y, Majka Z. Experimental determination of in-medium cluster binding energies and Mott points in nuclear matter. PHYSICAL REVIEW LETTERS 2012; 108:062702. [PMID: 22401061 DOI: 10.1103/physrevlett.108.062702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Indexed: 05/31/2023]
Abstract
In-medium binding energies and Mott points for d, t, 3He and α clusters in low-density nuclear matter have been determined at specific combinations of temperature and density in low-density nuclear matter produced in collisions of 47A MeV 40Ar and 64Zn projectiles with 112Sn and 124Sn target nuclei. The experimentally derived values of the in-medium modified binding energies are in good agreement with recent theoretical predictions based upon the implementation of Pauli blocking effects in a quantum statistical approach.
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67
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Scarpa D, Vasquez J, Tomaselli A, Grassi D, Biasetto L, Cavazza A, Corradetti S, Manzolaro M, Montano J, Andrighetto A, Prete G. Studies for aluminum photoionization in hot cavity for the selective production of exotic species project. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:02B317. [PMID: 22380296 DOI: 10.1063/1.3673628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Selective production of exotic species (SPES) is an ISOL-based accelerator facility that will be built in the Legnaro INFN Laboratory (Italy), intended to provide an intense neutron-rich radioactive ion beams obtained by proton induced fission of an uranium carbide target. Beside this main target, a silicon carbide (SiC) target will the first to be used to deliver some p-rich beams. This target will validate also the functionality of the SPES facility with aluminum beam as result of hitting SiC target with protons. In the past off-line studies on laser photoionization of aluminum have performed in Pavia Spectroscopy Laboratory and in Laboratori Nazionali di Legnaro where, recently, a XeCl excimer laser was installed in order to test the laser ionization in the SPES hot cavity. Results are promising to justify further studies with this technique, aiming a better characterization of the SPES ion extraction capability under laser photoionization.
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68
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Mastinu P, Praena J, Martìn-Hernàndez G, Dzysiuk N, Prete G, Capote R, Pignatari M, Ventura A. Status of the LEgnaro NeutrOn Source facility (LENOS). ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.phpro.2012.03.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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69
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Nitto AD, Brondi A, Rana GL, Moro R, Nadtochy P, Vardaci E, Vanzanella A, Cinausero M, Prete G, Gelli N. Clustering effects in 48Cr composite nuclei produced via 24Mg + 24Mg reaction. EPJ WEB OF CONFERENCES 2012. [DOI: 10.1051/epjconf/20122102002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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70
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Pomaro B, Salomoni VA, Gramegna F, Prete G, Majorana CE. Radiation damage evaluation on concrete within a facility for Selective Production of Exotic Species (SPES Project), Italy. JOURNAL OF HAZARDOUS MATERIALS 2011; 194:169-177. [PMID: 21868163 DOI: 10.1016/j.jhazmat.2011.07.079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 07/07/2011] [Accepted: 07/23/2011] [Indexed: 05/31/2023]
Abstract
Concrete is commonly used as a biological shield against nuclear radiation. As long as, in the design of nuclear facilities, its load carrying capacity is required together with its shielding properties, changes in the mechanical properties due to nuclear radiation are of particular significance and may have to be taken into account in such circumstances. The study presented here allows for reaching first evidences on the behavior of concrete when exposed to nuclear radiation in order to evaluate the consequent effect on the mechanical field, by means of a proper definition of the radiation damage, strictly connected with the strength properties of the building material. Experimental evidences on the decay of the mechanical modulus of concrete have allowed for implementing the required damage law within a 3D F.E. research code which accounts for the coupling among moisture, heat transfer and the mechanical field in concrete treated as a fully coupled porous medium. The development of the damage front in a concrete shielding wall is analyzed under neutron radiation and results within the wall thickness are reported for long-term radiation spans and several concrete mixtures in order to discuss the resulting shielding properties.
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71
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Nadotchy P, Brondi A, Di Nitto A, La Rana G, Moro R, Vardaci E, Ordine A, Boiano A, Cinausero M, Prete G, Rizzi V, Gelli N, Lucarelli F. Nuclear dissipation effects on fission and evaporation in systems of intermediate fissility. EPJ WEB OF CONFERENCES 2010. [DOI: 10.1051/epjconf/20100208003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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72
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Brondi A, Di Nitto A, La Rana G, Moro R, Nadotchy P, Vardaci E, Ordine A, Boiano A, Cinausero M, Prete G, Rizzi V, Gelli N, Lucarelli F. Search for isospin effects on nuclear level density. EPJ WEB OF CONFERENCES 2010. [DOI: 10.1051/epjconf/20100204002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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73
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Barbui M, Fabris D, Moretto S, Nebbia G, Nemeth P, Palfalvi J, Pesente S, Prete G, Sajo-Bohus L, Viesti G. Nuclear tracks in PADC induced by neutron, heavy ion and energetic fragments formed in the reaction 54Cr+208Pb, at 320MeV. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2009.10.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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74
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Tonev D, de Angelis G, Petkov P, Dewald A, Brant S, Frauendorf S, Balabanski DL, Pejovic P, Bazzacco D, Bednarczyk P, Camera F, Fitzler A, Gadea A, Lenzi S, Lunardi S, Marginean N, Möller O, Napoli DR, Paleni A, Petrache CM, Prete G, Zell KO, Zhang YH, Zhang JY, Zhong Q, Curien D. Transition probabilities in 134Pr: a test for chirality in nuclear systems. PHYSICAL REVIEW LETTERS 2006; 96:052501. [PMID: 16486924 DOI: 10.1103/physrevlett.96.052501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2005] [Indexed: 05/06/2023]
Abstract
Exited states in 134Pr were populated in the fusion-evaporation reaction 119Sn(19F,4n)134Pr. Recoil distance Doppler-shift and Doppler-shift attenuation measurements using the Euroball spectrometer, in conjunction with the inner Bismuth Germanate ball and the Cologne plunger, were performed at beam energies of 87 MeV and 83 MeV, respectively. Reduced transition probabilities in 134Pr are compared to the predictions of the two quasiparticle + triaxial rotor and interacting boson fermion-fermion models. The experimental results do not support the presence of static chirality in 134Pr underlying the importance of shape fluctuations. Only within a dynamical context the presence of intrinsic chirality in 134Pr can be supported.
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75
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Viesti G, Lunardon M, Bazzacco D, Burch R, Fabris D, Lunardi S, Medina NH, Nebbia G, Rossi-Alvarez C, Fioretto E, Prete G, Rico J, Spolaore P, Vedovato G, Brondi A, Moro R, Vardaci E. Population of hyperdeformed structures in 152Dy from proton-gamma coincidence experiments. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1995; 51:2385-2393. [PMID: 9970320 DOI: 10.1103/physrevc.51.2385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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76
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Kildir M, Moro R, Brondi A, Vardaci E, D'Onofrio A, Fessas D, Perillo E, Roca V, Romano M, Terrasi F, Nebbia G, Viesti G, Prete G. Ingoing-wave boundary condition versus optical model transmission coefficients: A systematic comparison with particle emission data. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1995; 51:1873-1881. [PMID: 9970258 DOI: 10.1103/physrevc.51.1873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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77
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Fabris D, Viesti G, Fioretto E, Cinausero M, Gelli N, Hagel K, Lucarelli F, Natowitz JB, Nebbia G, Prete G, Wada R. Excitation energy dependence of the fission probability in 200Pb compound nuclei. PHYSICAL REVIEW LETTERS 1994; 73:2676-2679. [PMID: 10057165 DOI: 10.1103/physrevlett.73.2676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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78
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Hagel K, Gonin M, Wada R, Natowitz JB, Haddad F, Lou Y, Gui M, Utley D, Xiao B, Li J, Nebbia G, Fabris D, Prete G, Ruiz J, Drain D, Chambon B, Cheynis B, Guinet D, Hu XC, Demeyer A, Pastor C, Giorni A, Lleres A, Stassi P, Viano JB, Gonthier P. Violent collisions and multifragment final states in the 40Ca+40Ca reaction at 35 MeV/nucleon. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1994; 50:2017-2034. [PMID: 9969879 DOI: 10.1103/physrevc.50.2017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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79
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Fabris D, Fioretto E, Viesti G, Cinausero M, Gelli N, Hagel K, Lucarelli F, Natowitz JB, Nebbia G, Prete G, Wada R. Alpha particle emission as a probe of the level density in highly excited A~200 nuclei. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1994; 50:R1261-R1264. [PMID: 9969842 DOI: 10.1103/physrevc.50.r1261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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80
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Fornal B, Gramegna F, Prete G, D'Erasmo G, Fiore EM, Fiore L, Pantaleo A, Paticchio V, Blasi P, Gelli N, Lucarelli F, Bizzeti-Sona AM, Bortignon PF, Fabris D, Nebbia G, Ruiz JA, Viesti G, Nardelli G. Neutron spectra from the 156Er compound nucleus populated by 12C- and 64Ni-induced reactions. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1993; 48:2072-2073. [PMID: 9969050 DOI: 10.1103/physrevc.48.2072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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81
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Fiore L, Viesti G, Bortignon PF, Blasi P, D'Erasmo G, Fabris D, Fiore EM, Gramegna F, Lucarelli F, Nebbia G, Pantaleo A, Paticchio V, Prete G, Ruiz JA. Prescission neutron emission from 104Pd. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1993; 47:R1835-R1837. [PMID: 9968714 DOI: 10.1103/physrevc.47.r1835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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82
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Kildir M, Moro R, Brondi A, D'Onofrio A, Perillo E, Roca V, Romano M, Terrasi F, Nebbia G, Viesti G, Prete G. 1,2,3H, 4He emission from 96Ru nuclei (E*. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1992; 46:2264-2272. [PMID: 9968354 DOI: 10.1103/physrevc.46.2264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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83
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Hagel K, Gonin M, Wada R, Natowitz JB, Sa BH, Lou Y, Gui M, Utley D, Nebbia G, Fabris D, Prete G, Ruiz J, Drain D, Chambon B, Cheynis B, Guinet D, Hu XC, Demeyer A, Pastor C, Giorni A, Lleres A, Stassi P, Viano JB, Gonthier P. Multifragmentation of 40Ca+40Ca. PHYSICAL REVIEW LETTERS 1992; 68:2141-2144. [PMID: 10045319 DOI: 10.1103/physrevlett.68.2141] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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84
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Nebbia G, Ruiz JA, Fabris D, Viesti G, Burch RH, Gramegna F, Prete G, Giorni A, Lleres A, Viano JB, Chambon B, Cheynis B, Demeyer A, Drain D, Guinet D, Hu XC, Gonin M, Hagel K, Natowitz JB, Wada R, Gonthier PL. Incomplete fusion and cluster production in heavy-ion collisions at 30 MeV/nucleon. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1992; 45:317-325. [PMID: 9967758 DOI: 10.1103/physrevc.45.317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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85
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Fornal B, Gramegna F, Prete G, Burch R, D'Erasmo G, Fiore EM, Fiore L, Pantaleo A, Paticchio V, Viesti G, Blasi P, Cinausero M, Lucarelli F, Anghinolfi M, Corvisiero P, Taiuti M, Zucchiatti A, Bortignon PF, Fabris D, Nebbia G, Ruiz JA. Level density of hot nuclei with A <= 40. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1991; 44:2588-2597. [PMID: 9967695 DOI: 10.1103/physrevc.44.2588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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86
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Gonin M, Cooke L, Hagel K, Lou Y, Natowitz JB, Schmitt RP, Shlomo S, Srivastava B, Turmel W, Utsunomiya H, Wada R, Nardelli G, Nebbia G, Viesti G, Zanon R, Fornal B, Prete G, Niita K, Hannuschke S, Gonthier P, Wilkins B. Dynamical effects on the de-excitation of hot nuclei with A. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1990; 42:2125-2142. [PMID: 9966960 DOI: 10.1103/physrevc.42.2125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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87
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Nardelli N, Prete G, Lupo O, Calvi O, Prete A. [Treatment of large laparoceles. A simplified radical method and the use of intra-abdominal synthetic prostheses]. MINERVA CHIR 1990; 45:1293-7. [PMID: 2082207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Having defined the terms of the problem of treating large incisional hernias with regard to the state of the patient and the anatomical conditions of the abdominal wall, the paper outlines the criteria for the execution of radical surgery which, while taking into account the numerous variables, simplify the overall surgical treatment. The efficacy of the prosthesis used, which ranges from a wide intra-abdominal polypropylene net, a well tolerated material, to the simplest plastic prosthesis for the muscle-aponeurotic wall, is confirmed by the excellent results achieved in the first difficult cases operated.
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88
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Fornal B, Gramegna F, Prete G, D'Erasmo G, Fiore EM, Fiore L, Pantaleo A, Paticchio V, Viesti G, Blasi P, Lucarelli F, Anghinolfi M, Corvisiero P, Taiuti M, Zucchiatti A, Bortignon PF, Ferrer C, Nardelli G, Nebbia G. Decay of 156Er compound nucleus. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1990; 42:1472-1479. [PMID: 9966882 DOI: 10.1103/physrevc.42.1472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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89
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Cavallaro S, Prete G, Viesti G. Angular correlations between heavy and light fragments in the reaction 32S+26Mg at Elab=163.5 MeV. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1990; 41:1606-1609. [PMID: 9966507 DOI: 10.1103/physrevc.41.1606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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90
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Fornal B, Gramegna F, Prete G, Nebbia G, Smith R, D'Erasmo G, Fiore L, Pantaleo A, Viesti G, Blasi P, Lucarelli F, Iori I, Moroni A. Test of statistical model predictions for alpha-particle decay of 90,92,94,96Ru compound nuclei. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1990; 41:127-138. [PMID: 9966323 DOI: 10.1103/physrevc.41.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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91
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Viesti G, Anghinolfi M, Bortignon PF, Corvisiero P, Djilavian L, Fornal B, Gramegna F, Natowitz JB, Nebbia G, Prete G, Taiuti M, Zucchiatti A. Shapes of 59Cu nuclei at moderate excitation energies and spin. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1989; 40:1570-1573. [PMID: 9966140 DOI: 10.1103/physrevc.40.r1570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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92
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Fornal B, Viesti G, Nebbia G, Prete G, Natowitz JB. Possible dynamic effects in the particle decay of 59Cu compound nuclei. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1989; 40:664-667. [PMID: 9966029 DOI: 10.1103/physrevc.40.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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93
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Cavallaro S, Zhi YS, Prete G, Viesti G. Fusion and binary reactions in the collision of 32S on 26Mg at Elab. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1989; 40:98-104. [PMID: 9965964 DOI: 10.1103/physrevc.40.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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94
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Viesti G, Fornal B, Fabris D, Hagel K, Natowitz JB, Nebbia G, Prete G, Trotti F. Decay of deformed 59Cu nuclei. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1988; 38:2640-2658. [PMID: 9955105 DOI: 10.1103/physrevc.38.2640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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95
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Fornal B, Prete G, Nebbia G, Trotti F, Viesti G, Fabris D, Hagel K, Natowitz JB. Level densities and barriers of deformed 59Cu nuclei with 28. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1988; 37:2624-2628. [PMID: 9954739 DOI: 10.1103/physrevc.37.2624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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96
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Majka Z, Brandan ME, Fabris D, Hagel K, Menchaca-Rocha A, Natowitz JB, Nebbia G, Prete G, Sterling B, Viesti G. Production and deexcitation of highly deformed 67Ga. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1987; 35:2125-2138. [PMID: 9954009 DOI: 10.1103/physrevc.35.2125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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97
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Fornal B, Gramegna F, Meczynski W, Prete G, Ricci RA, Viesti G, D'Erasmo G, Fiore L, Guarino G, Pantaleo A, Blasi P, Lucarelli F, Iori I, Moroni A. Observation of selective gamma decay of fission-like fragments in the 32S+58Ni reaction at 143 MeV. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1987; 35:338-340. [PMID: 9953769 DOI: 10.1103/physrevc.35.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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98
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Prete G, Signorini E, Cosmi F, Taramelli M, Bisacci R, Nenci GG. [Evaluation of the Doppler method of measuring blood flow velocity in carotid pathology: angiographic verification]. Minerva Cardioangiol 1982; 30:609-13. [PMID: 7155367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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