2,839 research outputs found
Claudio Costantini, Baliani e i Gesuiti giunti
No full textMoscovici Serge. Claudio Costantini, Baliani e i Gesuiti giunti. In: Annales. Économies, Sociétés, Civilisations. 28ᵉ année, N. 6, 1973. p. 1527
Costantini, Enos / Mattaloni, Claudio / Petrussi, Carlo. 2007. La vite nella storia e nella cultura del Friuli
No full textBilly Pierre-Henri. Costantini, Enos / Mattaloni, Claudio / Petrussi, Carlo. 2007. La vite nella storia e nella cultura del Friuli. In: Nouvelle revue d'onomastique, n°51, 2009. pp. 395-397
Studies on Conformal and Superconformal Extensions of the Standard Model with an Application to Gravity
No full textIn this thesis we study some theoretical and phenomenological aspects of
classical conformal symmetry in specific extensions of the SM. We consider both
supersymmetric and non supersymmetric cases. We discuss the perturbative
structure of the superconformal anomaly effective action. We show that the
manifestation of the anomaly is in the presence of massless intermediate states
in correlators involving the Ferrara-Zumino supercurrent with two vector
supercurrents. This universal feature is typical both of chiral and conformal
anomalies. These results are used in a study of a possible extension of the SM
with a dilaton, deriving some bounds on a possible conformal scale. Then we
turn to investigate a specific superconformal theory, the TNMSSM, which extends
the MSSM with one extra triplet and a scalar singlet superfield. The
manifestation of the classical conformal symmetry in this model is in the
existence of a very light pseudoscalar in the physical spectrum. We study the
main proprieties of this state and its potential discovery at the LHC. In the
last part of this work we discuss an application of the graviton-photon-photon
vertex to gravitational lensing for a Schwarzschild background. In particular,
we introduce the notion of a semiclassical lens equation for the deflection of
a photon nearing the horizon of a black hole
A comparative study on p value combination tests for unit roots in multiple time series
No full textThis note offers a Monte Carlo investigation of the performance of nine p value combination methods for unit root testing in multiple time series using a novel approach to simulation. Rather than on time series, simulations are based on random draws of Dickey-Fuller p values under the null and under local alternatives. This makes it possible to investigate the properties of the different combiners under ideal conditions in which small sample effects and possible model misspecification issues have no role. The results show that no combination approach delivers a uniformly best test in the presence of independent p values. However, the probit combination method and the sum method on average outperform the other combiners within the unit root setting. The performance of the combination tests is generally unsatisfactory in the presence of cross-correlated p values
The defensive alliance between neutrophils and NK cells as a novel arm of innate immunity.
No full textThe immune system is equipped with a plethora of mechanisms that protect the host from the harmful effects of environmental insults. However, the traditional "hierarchical" view of the immune response, in which innate, "nonspecific" cells are first recruited to the site of damage, before the highly "specific", adaptive immune response develops, has been questioned recently. First, the innate response is much more specific than recognized previously: indeed, each cell of the innate system is not only endowed with an ever-expanding array of germ-line-encoded receptors, which differentiate between distinct insults, but also is modulated continuously by other leukocytes that concomitantly interact with and respond to that particular insult. The other reason is that the cells of the innate system are instrumental for the adaptive system to accomplish its function, as they can also modulate the activity of lymphocytes reciprocally during the entire course of the immune response. This complex pattern of interactions is illustrated by recent advances on the functions of PMNs, clearly showing that unexpectedly, these cells also contribute to the regulation of the host immune response by crosstalk with innate and adaptive leukocytes, including NK cells. Herein, given the peculiar role of neutrophils and NK cells in inflammation, clearance of pathogens/viral-infected cells, and cancer immunosurveillance, we summarize the current knowledge about the mechanisms whereby neutrophils and NK cells interact and regulate the activities of one another, as well as discuss their potential implications involved in the pathogenesis of chronic, inflammatory pathologies, infections, and tumors
A copula-based analysis of false discovery rate control under dependence assumptions
No full textThe false discovery rate (FDR) first introduced in Benjamini and Hochberg (1995) is a powerful approach to multiple testing. Benjamini and Yekutieli (2001) proved that the original procedure developed for independent test statistics controls the FDR also for positively dependent test statistics. Furthermore, Yekutieli (2008) showed that a modification of the original procedure can be used even in the presence of non-positively regression dependent test statistics. In this paper we elaborate on Yekutieli (2008) and introduce suitable classes of copulas to identify the conditions under which the dependence properties needed to control the FDR are satisfied.Autore: Cerqueti, Roy; email: [email protected]: Costantini, Mauro; email: [email protected]: Lupi, Claudio; email: [email protected]
Soils as part of our cultural heritage and past environment records.
No full textPubblicazione su CD-Ro
Postal de Claudio Vivas a Maruja Vieira, junio 23 de 1955
No full textPostal de Claudio Vivas a Maruja Vieira, felicitándola por el reconocimiento que le fue otorgado a la autora de poemasPostcard from Claudio Vivas to Maruja Vieira, congratulating her for the recognition given to the author of poems.Publicación, fondo Maruja Vieira, carpeta 1, folio
M. d'Ischia, C. Costantini, G. Prota. Reaction of dopamine with malondialdehyde: a possible underlying event in Parkinson's disease.
No full textUnder physiologically relevant conditions, malondialdehyde reacts with the neurotransmitter dopamine to give three major adducts that were identified as the enaminal 1, the dihydropyridine 2 and the novel oxaazabicyclo[3.3.1]nonadiene 3
Higgs bosons: discovered and hidden, in extended Supersymmetric Standard Models at the LHC
No full textWe investigate an extension of the Minimal Supersymmetric Standard Model (MSSM) containing a SU(2) Higgs triplet of zero hypercharge and a gauge singlet. We focus on a scenario of this model which allows a light pseudoscalar and/or a scalar below 100 GeV in the spectrum, consistent with the most recent data from the LHC and the earlier data from the LEP experiments. We analyze the exotic decay of the discovered Higgs (h125) into two light (hidden) Higgs bosons present in the extension. The latter are allowed by the uncertainties in the Higgs decay h125→WW∗, h125→ZZ∗ and h125→γγ. We have searched for such light Higgs bosons in the 2b+2τ, ≥3τ, 2b+2μ and 2τ+2μ final states at the LHC with 13 and 14 TeV. A region of such parameter space can be explored with an integrated luminosity of 25 fb−1 at the LHC
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