Giuseppe Lo Giudice, Anke Hilbert, Roberto Bugarini, Ada Minutello, О. Н. Попова, Daniela Toneatto, Ines Schoendorf, Astrid Borkowski, Rino Rappuoli, Audino Podda,
To test whether inactivated influenza vaccines distributed during the 2003–2004 influenza season in the northern hemisphere were able to confer protection against the mismatched variant A/Fujian/411/2002 virus strain, we measured haemagglutination inhibiting (HI) antibodies in elderly subjects vaccinated with three inactivated vaccines against the homologous A/H3N2 vaccine strain (A/Panama) and against the mismatched A/Fujian strain. The results showed that, while 76 to 80% of elder people vaccinated ...
Tópico(s): Animal Disease Management and Epidemiology
2006 - Elsevier BV | Vaccine
Emeline Darçot, Jérôme Yerly, Tom Hilbert, Roberto Colotti, Elena Najdenovska, Tobias Kober, Matthias Stuber, Ruud B. van Heeswijk,
Fluorine-19 (19F) MRI of injected perfluorocarbon emulsions (PFCs) allows for the non-invasive quantification of inflammation and cell tracking, but suffers from a low signal-to-noise ratio and extended scan time. To address this limitation, we tested the hypothesis that a 19F MRI pulse sequence that combines a specific undersampling regime with signal averaging has increased sensitivity and robustness against motion artifacts compared to a non-averaged fully-sampled dataset, when both are reconstructed ...
Tópico(s): Medical Imaging Techniques and Applications
2020 - Wiley | NMR in Biomedicine
Matheus Hausen, Pedro Paulo da Silva Soares, Marcus Paulo Araújo, Débora Esteves, Hilbert Julio, Roberto Tauil, Marcus Junca, Flávia Porto, Émerson Franchini, Craig A. Bridge, Jonas Lírio Gurgel,
To propose and validate new taekwondo-specific cardiopulmonary exercise tests.Twelve male national-level taekwondo athletes (age 20 [2] y, body mass 67.5 [5.7] kg, height 175 [8] cm, and training experience 7 [3] y) performed 3 separate exercise tests in a randomized counterbalanced order: (1) a treadmill running cardiopulmonary exercise test (CPET) and (2) continuous and (3) interval taekwondo-specific cardiopulmonary exercise tests (cTKDet and iTKDet, respectively). The CPET was administered using an individualized ...
Tópico(s): Sports Performance and Training
2018 - Human Kinetics | International Journal of Sports Physiology and Performance
Produção Nacional
Revisado por pares
Paulo Roberto Oliveira, P. S. M. Santos, Anderson Nunes Silva,
In this paper we consider a general equilibrium problem in a Hilbert space defined on a closed and convex set. We show a Tikhonov-type regularization method that can be extended for the equilibrium problem. Under mild assumptions we establish the equivalence between the existence of solution of the original problem and the boundedness of the sequence generated by regularized problems.
Tópico(s): Advanced Optimization Algorithms Research
2012 - Elsevier BV | Journal of Mathematical Analysis and Applications
Roberto Giuntini, Antonio Ledda, Francesco Paoli,
Tópico(s): Rough Sets and Fuzzy Logic
2016 - Springer Science+Business Media | Studia Logica
Gianfranco Casnati, Roberto Notari,
Let k be an algebraically closed field and let HilbdG(PkN) be the open locus of the Hilbert scheme Hilbd(PkN) corresponding to Gorenstein subschemes. We prove that HilbdG(PkN) is irreducible for d≤9. Moreover we also give a complete picture of its singular locus in the same range d≤9. Such a description of the singularities gives some evidence to a conjecture on the nature of the singular points in HilbdG(PkN) that we state at the end of the paper.
Tópico(s): Algebraic structures and combinatorial models
2009 - Elsevier BV | Journal of Pure and Applied Algebra
Stephen Wilson, P. J. Grout, J. Maruani, G. Delgado–Barrio, Piotr Piecuch,
... E. Perez-Romero).- Molecular Energy Decompositions in the Hilbert-space of Atomic Orbitals at Correlated Level (Diego R. Alcoba, Roberto C. Bochicchio, Luis Lain and Alicia Torre).- Dirac- ...
Tópico(s): Quantum, superfluid, helium dynamics
2008 - Springer Nature (Netherlands) | Progress in theoretical chemistry and physics
Sergio Albeverio, Roberto Cianci, Andrei Yu. Khrennikov,
Tópico(s): Advanced Algebra and Geometry
1997 - Pleiades Publishing | Theoretical and Mathematical Physics
Roelof W. Bruggeman, Roberto J. Miatello, I. Pacharoni,
((no abstract))
Tópico(s): Analytic Number Theory Research
2003 - Birkhäuser | Geometric and Functional Analysis
In this paper we present a procedure for computing the rational sum of the Hilbert series of a finitely generated monomial right module N over the free associative algebra K〈x1,…,xn〉. We show that such procedure terminates, that is, the rational sum exists, when all the cyclic submodules decomposing N are annihilated by monomial right ideals whose monomials define regular formal languages. The method is based on the iterative application of the colon right ideal operation to monomial ideals which ...
Tópico(s): Synthesis and pharmacology of benzodiazepine derivatives
2016 - Elsevier BV | Journal of Symbolic Computation
Roberto Beneduci, J. A. Brooke, Ray Curran, Franklin E. Schroeck,
We continue from Part 1. We will illustrate the general theory of Hamiltonian mechanics in the Lie group formalism. We then obtain the Hamiltonian formalism in the Hilbert spaces of square integrable functions on the symplectic spaces. We illustrate this general theory with several concrete examples, two of which are the representations of the Lorentz group and the Poincaré group with interactions.
Tópico(s): Advanced Topics in Algebra
2011 - Springer Science+Business Media | International Journal of Theoretical Physics
Gianfranco Casnati, Roberto Notari,
Let k be an algebraically closed field of characteristic 0 and let HilbdG(PkN) be the open locus of the Hilbert scheme Hilbd(PkN) corresponding to Gorenstein subschemes. We proved in a previous paper that HilbdG(PkN) is irreducible for d≤9 and N≥1. In the present paper we prove that Hilb10G(PkN) is irreducible for each N≥1, giving also a complete description of its singular locus.
Tópico(s): Algebraic structures and combinatorial models
2010 - Elsevier BV | Journal of Pure and Applied Algebra
Roberto Beneduci, J. A. Brooke, Ray Curran, Franklin E. Schroeck,
Tópico(s): Quantum chaos and dynamical systems
2011 - Springer Science+Business Media | International Journal of Theoretical Physics
Roelof W. Bruggeman, Roberto J. Miatello,
Let F be a totally real field, let I be a nonzero ideal of the ring of integers O F of F , let Γ 0 (I) be the congruence subgroup of Hecke type of G = d j=1 SL 2 (R) embedded diagonally in G, and let χ be a character of Γ 0 (I) of the form χ a b c d = χ(d), where d → χ(d) is a character of O F modulo I.For a finite subset P of prime ideals p not dividing I, we consider the ring H I , generated by the Hecke operators T (p 2 ), p ∈ P (see §3.2) acting on (Γ, χ)-automorphic forms on G.Given the cuspidal space L 2,cusp ξ ...
Tópico(s): Finite Group Theory Research
2013 - | Asian Journal of Mathematics
Roberto Dvornicich, Umberto Zannier,
In the context that arose from an old problem of Lang regarding the torsion points on subvarieties of Gmd, we describe the points that lie in a given variety, are defined over the cyclotomic closure kc of a number field k, and map to a torsion point under a finite projection to Gmd. We apply this result to obtain a sharp and explicit version of Hilbert's irreducibility theorem over kc. Concerning the arithmetic of dynamics in one variable, we obtain by related methods a complete description of the ...
Tópico(s): Quantum chaos and dynamical systems
2007 - Duke University Press | Duke Mathematical Journal
Roberto Notari, Maria Luisa Spreafico,
Tópico(s): Polynomial and algebraic computation
2000 - Springer Science+Business Media | manuscripta mathematica
Gianfranco Casnati, Roberto Notari,
Let k be an algebraically closed field of characteristic 0 and let HilbdG(PkN) be the open locus of the Hilbert scheme Hilbd(PkN) corresponding to Gorenstein subschemes. We proved in several previous papers that HilbdG(PkN) is irreducible for d⩽10 and N⩾1, characterizing its singular locus. In the present paper we prove that also Hilb11G(PkN) is irreducible for each N⩾1. We also give some results about its singular locus.
Tópico(s): Algebraic structures and combinatorial models
2014 - Elsevier BV | Journal of Pure and Applied Algebra
Roberto Cavoretto, Gregory E. Fasshauer, Michael McCourt,
Kernel-based approximation methods—often in the form of radial basis functions—have been used for many years now and usually involve setting up a kernel matrix which may be ill-conditioned when the shape parameter of the kernel takes on extreme values, i.e., makes the kernel "flat". In this paper we present an algorithm we refer to as the Hilbert-Schmidt SVD and use it to emphasize two important points which—while not entirely new—present a paradigm shift under way in the practical application of ...
Tópico(s): Statistical and numerical algorithms
2014 - Springer Science+Business Media | Numerical Algorithms
Roberto La Scala, Dmitri Piontkovski, Sharwan K. Tiwari,
In this paper we introduce a class of noncommutative (finitely generated) monomial algebras whose Hilbert series are algebraic functions. We use the concept of graded homology and the theory of unambiguous context-free grammars for this purpose. We also provide examples of finitely presented graded algebras whose corresponding leading monomial algebras belong to the proposed class and hence possess algebraic Hilbert series.
Tópico(s): semigroups and automata theory
2019 - Elsevier BV | Journal of Symbolic Computation
Roberto La Scala, Sharwan K. Tiwari,
In this paper, we propose methods for computing the Hilbert series of multigraded right modules over the free associative algebra. In particular, we compute such series for noncommutative multigraded algebras. Using results from the theory of regular languages, we provide conditions when the methods are effective and hence the sum of the Hilbert series is a rational function. Moreover, a characterization of finite-dimensional algebras is obtained in terms of the nilpotency of a key matrix involved ...
Tópico(s): Commutative Algebra and Its Applications
2018 - Elsevier BV | Journal of Algebra
Enrico G. Beltrametti, María Luisa Dalla Chiara, Roberto Giuntini, Roberto Leporini, Giuseppe Sergioli,
Quantum computation and quantum computational logics are intrinsically connected with some puzzling epistemic problems.In the framework of a quantum computational approach to epistemic logic we investigate the following question: is it possible to interpret the basic epistemic operations (having information, knowing) as special kinds of Hilbert-space operations?We show that non-trivial knowledge operations cannot be represented by unitary operators.We introduce the notions of strong epistemic quantum ...
Tópico(s): Advanced Algebra and Logic
2012 - IOS Press | Fundamenta Informaticae
Gianfranco Casnati, Joachim Jelisiejew, Roberto Notari,
Casnati and Notari are supported by the framework of PRIN 2010/11 "Geometria delle varietà algebriche", cofinanced by MIUR, and are members of GNSAGA of INdAM
Tópico(s): Algebraic Geometry and Number Theory
2015 - Mathematical Sciences Publishers | Algebra & Number Theory
Tópico(s): Statistical Methods and Bayesian Inference
2006 - Elsevier BV | Handbooks in operations research and management science
Uwe Nagel, Roberto Notari, Maria Luisa Spreafico,
We study families of ropes of any codimension that are supported on lines. We construct suitable smooth parameter spaces and conclude that all ropes of fixed degree and genus lie in the same component of the corresponding Hilbert scheme. We show that this component is generically smooth if the genus is small enough unless the characteristic of the ground field is two and the curves under consideration have degree two. In this case the component is non-reduced.
Tópico(s): Homotopy and Cohomology in Algebraic Topology
2006 - World Scientific | International Journal of Mathematics
Produção Nacional
Philippe Wibart, Thomas Réginault, Margarita Garcia-Fontan, Bérangère Barbrel, Clément Bader, Antoine Bénard, Verônica Franco Parreira, Daniel Gonzalez-Antón, N. H. Bui, Didier Gruson, Gilles Hilbert, Roberto Martínez-Alejos, Frédéric Vargas,
We hypothesized that the use of mechanical insufflation-exsufflation can reduce the incidence of acute respiratory failure within the 48-hour post-extubation period in intensive care unit-acquired weakness patients.This was a prospective randomized controlled open-label trial. Patients diagnosed with intensive care unit-acquired weakness were consecutively enrolled based on a Medical Research Council score ≤ 48/60. The patients randomly received two daily sessions; in the control group, conventional ...
Tópico(s): Cardiac Arrest and Resuscitation
2023 - | Critical Care Science
Andrea Cavaglià, Martina Cornagliotto, Massimo Mattelliano, Roberto Tateo,
Inspired by recent results in the context of AdS/CFT integrability, we reconsider the Thermodynamic Bethe Ansatz equations describing the 1D fermionic Hubbard model at finite temperature. We prove that the infinite set of TBA equations are equivalent to a simple nonlinear Riemann-Hilbert problem for a finite number of unknown functions. The latter can be transformed into a set of three coupled nonlinear integral equations defined over a finite support, which can be easily solved numerically. We ...
Tópico(s): Physics of Superconductivity and Magnetism
2015 - Springer Nature | Journal of High Energy Physics
Agnieszka Szymczakiewicz‐Multanowska, Nicola Groth, Roberto Bugarini, Maria Lattanzi, D Casula, Anne Katrin Hilbert, Theodore F. Tsai, Audino Podda,
Immunization remains the best prevention strategy for influenza, but production constraints for egg-based influenza vaccines have prompted the development of innovative cell culture manufacturing processes. Here, we describe a novel cell culture-derived influenza vaccine (CCIV) produced in Madin-Darby canine kidney cells.This phase 3, observer-blind, randomized, multicenter study in Poland compared the immunogenicity of a CCIV and a conventional egg-based vaccine. Participants, stratified by age ( ...
Tópico(s): Respiratory viral infections research
2009 - Oxford University Press | The Journal of Infectious Diseases
Morio Castagnino, Roberto B. Diener, Luis Lara, Gabriel D. Puccini,
The upside-down simple harmonic oscillator system is studied in the contexts of quantum mechanics and classical statistical mechanics. It is shown that in order to study in a simple manner the creation and decay of a physical system by way of Gamow vectors we must formulate the theory in a time-asymmetric fashion, namely using two different rigged Hilbert spaces to describe states evolving toward the past and the future. The spaces defined in the contexts of quantum and classical statistical mechanics ...
Tópico(s): Advanced Thermodynamics and Statistical Mechanics
1997 - Springer Science+Business Media | International Journal of Theoretical Physics
Thach G. Nguyen, Mehrdad Shoeiby, Sai T. Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, David Moss,
We demonstrate a photonic RF Hilbert transformer for broadband microwave in-phase and quadrature-phase generation based on an integrated frequency optical comb, generated using a nonlinear microring resonator based on a CMOS compatible, high-index contrast, doped-silica glass platform.The high quality and large frequency spacing of the comb enables filters with up to 20 taps, allowing us to demonstrate a quadrature filter with more than a 5-octave (3 dB) bandwidth and an almost uniform phase response.
Tópico(s): Optical Network Technologies
2015 - Optica Publishing Group | Optics Express
Produção Nacional
Revisado por pares
J. P. V. Madeiro, Paulo César Cortez, João Alexandre Lôbo Marques, Carlos Román Vázquez Seisdedos, Carlos Roberto Martins Rodrigues Sobrinho,
Tópico(s): Cardiac electrophysiology and arrhythmias
2012 - Elsevier BV | Medical Engineering & Physics