Search results for " Experiment"
showing 10 items of 13414 documents
Supernova-neutrino induced reactions on molybdenum via neutral-currents
2012
In this thesis which consists of an introductory part and six publications the neutralcurrent neutrino-nucleus scatterings o the stable molybdenum nuclei are studied using microscopic nuclear models. The main focus is on supernova neutrinos and the nuclear responses to them for the aforementioned nuclei are computed by folding the computed cross sections with realistic neutrino-energy spectra. In this work both the coherent and incoherent contributions to the cross sections are considered. The contributions from the prominent multipole channels to the incoherent cross sections are also discussed in great detail.
Shell-model study on event rates of lightest supersymmetric particles scattering off 83Kr and 125Te
2016
We investigate the elastic and inelastic scattering of lightest supersymmetric particle (LSP) dark matter off two possible target nuclei, 83Kr and 125Te. For the nuclear-structure calculations, we employ the nuclear shell model using recently generated realistic interactions. We have condensed the nuclear-physics contribution to a set of nuclear-structure factors that are independent of the adopted supersymmetric (SUSY) model. Total event rates are then easily calculated by combining the nuclear-structure factors with SUSY parameters of choice. In particular, 125Te shows promise as a detector material with both the elastic and inelastic channels yielding an appreciable nuclear response. pee…
Global analysis of the pMSSM in light of the Fermi GeV excess: prospects for the LHC Run-II and astroparticle experiments
2016
We present a new global fit of the 19-dimensional phenomenological Minimal Supersymmetric Standard Model (pMSSM-19) that comply with all the latest experimental results from dark matter indirect, direct and accelerator dark matter searches. We show that the model provides a satisfactory explanation of the excess of gamma-rays from the Galactic centre observed by the Fermi~Large Area Telescope, assuming that it is produced by the annihilation of neutralinos in the Milky Way halo. We identify two regions that pass all the constraints: the first corresponds to neutralinos with a mass ~80-100 GeV annihilating into WW with a branching ratio of 95% ; the second to heavier neutralinos, with mass ~…
Size-related mortality during overwintering in cavity-nesting ant colonies (Hymenoptera: Formicidae)
2016
The ongoing process of climate change will result in higher temperatures during winter and therefore might increase the survival of overwintering invertebrates. However, the process may also lead to a reduction in snow cover and expose overwintering invertebrates to lower temperatures, which could result in higher mortality. During a field experiment, I investigated the effects of a reduction in snow cover on the survival of the ant Temnothorax crassispinus, which overwinters in nests located on the ground. Ant colonies differed in the survival rate of the workers in the experimental (from which snow cover was removed) and control group. In the control group, the survival rate was unrelated…
Requalification of the Tobacco Factory in Palermo with destination to social finalities
2016
From the Sixties and for many years later the construction of new buildings, both public and residential, has made our cities more and more large, with a great squandering of ground, pollution and reduction of the green areas. A necessary trend reversal has implied a growing interest towards the rehabilitation and requalification of the brownfields. These, both inside the urban fabric and in suburban areas, offer complexes of buildings with great potentiality for a sustainable reuse both from the social point of view and from the environmental one. The large dimensions, the great spans and the materials usually used make these buildings suitable to a recovery which makes possible a rehabili…
Behavioral Inhibition Underlies the Link Between Interoceptive Sensitivity and Anxiety-Related Temperamental Traits
2017
Interoceptive sensitivity is a biologically determined, constitutional trait of an individual. High interoceptive sensitivity has been often associated with proneness to anxiety. This association has been explained by elevated autonomic responsiveness in anxious individuals. However, in a heartbeat discrimination task (discrimination of heartbeats’ simultaneity to an external stimulus) low cardiac responsiveness has accompanied enhanced performance. The relation between these factors seems task dependent, and cannot comprehensively explain the link between interoceptive sensitivity and anxiety. We explored for additional explanatory factors for this link. More specifically, we studied which…
Etude de l'impact du contrôle postural associé au port de verres prismatiques dans la réduction des troubles cognitifs chez le dyslexique de développ…
2007
But de l’etude L’objectif de ce travail est d’evaluer l’impact des modifications proprioceptives induites par un traitement postural sur les troubles cognitifs d’une population d’enfants souffrant de dyslexie de developpement. Patients et methodes Il a ete constitue un groupe de 20 enfants dyslexiques traites par prismes posturaux, semelles « de posture » et reeducation posturale, et un groupe temoin de 13 enfants dyslexiques portant uniquement des lunettes sans prismes. Tous les enfants etaient de sexe masculin. Lors de leur inclusion dans l’etude (M0) et 6 mois plus tard (M6), tous les participants ont ete evalues par un bilan ophtalmologique et postural et ont recu un examen neuropsychol…
'REOFUT' as an Observation Tool for Tactical Analysis on Offensive Performance in Soccer: Mixed Method Perspective
2019
Performance analysis in complex sports like soccer requires the study of the influence of the interaction between both teams during the game on final performance. The mixed methods approach involves the collection, analysis, and interpretation of qualitative and quantitative data for the same purpose and within the framework of the same study. To build certain observation tools, mixed methods are necessary in order to take advantage of integration between qualitative and quantitative elements. The aim of this study was to develop a new no standard observation tool to analyze soccer offensive performance considering not only the observed team but also some aspects of the opponent behavior, a…
Context–content systems of random variables : The Contextuality-by-Default theory
2016
Abstract This paper provides a systematic yet accessible presentation of the Contextuality-by-Default theory. The consideration is confined to finite systems of categorical random variables, which allows us to focus on the basics of the theory without using full-scale measure-theoretic language. Contextuality-by-Default is a theory of random variables identified by their contents and their contexts, so that two variables have a joint distribution if and only if they share a context. Intuitively, the content of a random variable is the entity the random variable measures or responds to, while the context is formed by the conditions under which these measurements or responses are obtained. A …
High yield neutron generator based on a high-current gasdynamic electron cyclotron resonance ion source
2015
In present paper, an approach for high yield compact D-D neutron generator based on a high current gasdynamic electron cyclotron resonance ion source is suggested. Results on dense pulsed deuteron beam production with current up to 500 mA and current density up to 750 mA/cm2 are demonstrated. Neutron yield from D2O and TiD2 targets was measured in case of its bombardment by pulsed 300 mA Dþ beam with 45 keV energy. Neutron yield density at target surface of 109 s 1 cm2 was detected with a system of two 3 He proportional counters. Estimations based on obtained experimental results show that neutron yield from a high quality TiD2 target bombarded by Dþ beam demonstrated in present work accele…