39,246 research outputs found
Patient accepted to ER with diagnosis of first seizure: predictive variables of convulsive syncope.
6openopenC.L. SMERALDA, F. BEVILACQUA, G. PAULETTO, M. FANZUTTI, F. PALESE, G. GIGLISmeralda, C. L.; Bevilacqua, F.; Pauletto, G.; Fanzutti, M.; Palese, F.; Gigli, G
A process plant retrofitting framework in industry 4.0 perspective
none8noRetrofitting old plants is an excellent alternative to their replacement to prepare them for industry 4.0. Many papers are related to retrofitting, but few studies concerned the process industries. A framework to retrofit a process plant is presented and applied to a two-phase mixing plant providing a guide starting from the plant study and ending with the I4.0 paradigm implementation. The approach allowed to improve plant safety and maintainability conditions. The several issues arising during the retrofitting can be related to its multidisciplinarity aspects, the recursion in the definition of new variables to be monitored, and the information flow management.openDi Carlo F.; Mazzuto G.; Bevilacqua M.; Ciarapica F.E.; Ortenzi M.; Di Donato L.; Ferraro A.; Pirozzi M.Di Carlo, F.; Mazzuto, G.; Bevilacqua, M.; Ciarapica, F. E.; Ortenzi, M.; Di Donato, L.; Ferraro, A.; Pirozzi, M
Polymorphism of α<sub>S1</sub>-casein in goat milk: identification of A, B, E and F variants by biochemical and genetic analysis
Many researches, related to genetic polymorphism of αS1-casein in goat milk, showed a marked variability and implications in milk and dairy product traits. The genetic variants (from A to G) were associated with four levels of expression: 3,6 g/L per A, B and C (âstrongâ alleles); 1,6 g/L per E (âmediumâ allele); 0,6 g/L per F (âweakâ allele) and 0 g/L per O (ânullâ allele). Differences existing among the A, B, C, D, E, F, G and O have been described (Grosclaude et al., 1994). To analyze genetic polymorphism of caseins from goat milk, distinct electrophoretic (Russo et al., 1986; Addeo et al., 1988) and chromatographic techniques (Jaubert and Martin, 1992; Iametti et al., 1999) were applied. In last years, the advancement in technological field is allowing the research of primary structure of protein variants (Ferranti et al., 1997; Trujillo et al., 2000) and basic sequence of new alleles (Martin et al., 1999; Bevilacqua et al., 2002; Ramunno et al., 2002). In this work, we employed electrophoretic protein separation (IEF and SDS-PAGE), chromatographic analysis (RP-HPLC) and molecular biology techniques based on polymerase chain reaction (real-time PCR) to detect αS1-CN genetic variants from goat milk.
The utility of protein and DNA analysis combination was discussed
On the ratio of ttbb and ttjj cross sections at the CERN Large Hadron Collider
Triggered by ongoing experimental analyses, we report on a study of the cross
section ratio sigma(pp -> ttbb)/sigma(pp -> ttjj) at the next-to-leading order
in QCD, focusing on both present and future collider energies: sqrt{s}= 7, 8,
13 TeV. In particular, we provide a comparison between our predictions and the
currently available CMS data for the 8 TeV run. We further analyse the
kinematics and scale uncertainties of the two processes for a single set of
parton distribution functions, with the goal of assessing possible correlations
that might help to reduce the theoretical error of the ratio and thus enhance
the predictive power of this observable. We argue that the different jet
kinematics makes the ttbb and ttjj processes uncorrelated in several
observables, and show that the scale uncertainty is not significantly reduced
when taking the ratio of the cross sections.Comment: 23 pages, 10 figures, 3 tables, some issues clarified,
acknowledgement and references added, version to appear in JHE
Complete off-shell effects for top-antitop + jet production with leptonic decays at the LHC
A brief summary of the calculation of the NLO QCD corrections to the process
pp -> e+ ve mu- v_mu bb~ j + X is reported. This provides a complete
description of the process of t-tbar + jet production with leptonic decays
beyond the narrow-width approximation. Off-shell effects for top quarks and W
boson decays are fully taken into account, namely all resonant and non-resonant
contributions are included in the fixed-order calculation. Selected results for
total and differential cross sections are shown for the case of the LHC Run I
at the energy of 8 TeV.Comment: 8 pages, 4 figures. To appear in the Proceedings of the 24th
International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS
2016), 11-15 April 2016, DESY Hamburg, German
hadroproduction with massive bottom quarks with PowHel
The associated production of top-antitop-bottom-antibottom quarks is a
relevant irreducible background for Higgs boson analyses in the
top-antitop-Higgs production channel, with Higgs decaying into a
bottom-antibottom quark pair. We implement this process in the PowHel event
generator, considering the bottom quarks as massive in all steps of the
computation which involves hard-scattering matrix-elements in the 4-flavour
number scheme combined with 4-flavour Parton Distribution Functions.
Predictions with NLO QCD + Parton Shower accuracy, as obtained by PowHel +
PYTHIA, are compared to those which resulted from a previous PowHel
implementation with hard-scattering matrix-elements in the 5-flavour number
scheme, considering as a baseline the example of a realistic analysis of
top-antitop hadroproduction with additional -jet activity, performed by the
CMS collaboration at the Large Hadron Collider.Comment: 9 pages, 6 figure
Non-Gaussian Geostatistical Modeling using (skew) t Processes
We propose a new model for regression and dependence analysis when addressing
spatial data with possibly heavy tails and an asymmetric marginal distribution.
We first propose a stationary process with marginals obtained through scale
mixing of a Gaussian process with an inverse square root process with Gamma
marginals. We then generalize this construction by considering a skew-Gaussian
process, thus obtaining a process with skew-t marginal distributions. For the
proposed (skew) process we study the second-order and geometrical
properties and in the case, we provide analytic expressions for the
bivariate distribution. In an extensive simulation study, we investigate the
use of the weighted pairwise likelihood as a method of estimation for the
process. Moreover we compare the performance of the optimal linear predictor of
the process versus the optimal Gaussian predictor. Finally, the
effectiveness of our methodology is illustrated by analyzing a georeferenced
dataset on maximum temperatures in Australi
- âŠ