Search results for "rete"

Variations of selective separability II: Discrete sets and the influence of convergence and maximality

2012

A space $X$ is called selectively separable(R-separable) if for every sequence of dense subspaces $(D_n : n\in\omega)$ one can pick finite (respectively, one-point) subsets $F_n\subset D_n$ such that $\bigcup_{n\in\omega}F_n$ is dense in $X$. These properties are much stronger than separability, but are equivalent to it in the presence of certain convergence properties. For example, we show that every Hausdorff separable radial space is R-separable and note that neither separable sequential nor separable Whyburn spaces have to be selectively separable. A space is called \emph{d-separable} if it has a dense $\sigma$-discrete subspace. We call a space $X$ D-separable if for every sequence of …

Quantization of Poisson Lie Groups and Applications

1996

LetG be a connected Poisson-Lie group. We discuss aspects of the question of Drinfel'd:can G be quantized? and give some answers. WhenG is semisimple (a case where the answer isyes), we introduce quantizable Poisson subalgebras ofC ∞(G), related to harmonic analysis onG; they are a generalization of F.R.T. models of quantum groups, and provide new examples of quantized Poisson algebras.

Análisis oclusal y estabilidad a largo plazo en pacientes tratados ortodoncicamente en la población valenciana

2015

Estudio retrospectivo, descriptivo y analítico que valora la estabilidad entre los cuatro y diez años de finalizado el tratamiento ortodóncico, cuando ya los cambios precoces de retirada del trtamiento se han manifestado. Se valora la estabilidad mediante los valores oclusales medidos sobre modelos de estudio realizados en escayola al inicio del tratamiento (T1), a la finalización del mismo(T2) y entre los cuatro y diez años de finalizado el tratamiento(T3). Se utilizó como método de medición el índice Peer Assessment Rating (PAR). Se analizan doce variables que pueden influir en la estabilidad a largo plazo: sexo del paciente, tipo de maloclusión según la clasificación de Angle, presencia …

La carretera de Cerdà a Enguera (1856-1868) : Un proyecto fallido de obra civil

2014

Patients' and physicians' preferences for type 2 diabetes mellitus treatments in Spain and Portugal: a discrete choice experiment.

2015

Objective: To assess Spanish and Portuguese patients' and physicians' preferences regarding type 2 diabetes mellitus (T2DM) treatments and the monthly willingness to pay (WTP) to gain benefits or avoid side effects. Methods: An observational, multicenter, exploratory study focused on routine clinical practice in Spain and Portugal. Physicians were recruited from multiple hospitals and outpatient clinics, while patients were recruited from eleven centers operating in the public health care system in different autonomous communities in Spain and Portugal. Preferences were measured via a discrete choice experiment by rating multiple T2DM medication attributes. Data were analyzed using the cond…

Adaptive synchronization of master-slave systems with mixed neutral and discrete time-delays and nonlinear perturbations

2011

This paper investigates the delay-dependent adaptive synchronization problem of the master and slave structure of linear systems with both constant neutral and time-varying discrete time-delays and nonlinear perturbations based on the Barbalat lemma and matching conditions. An adaption law which includes the master-slave parameters is obtained by using the Lyapunov functional method and inequality techniques to synchronize the master-slave systems without the knowledge of upper bounds of perturbation terms. Particularly, it is shown that the synchronization speed can be controlled by adjusting the update gain of the synchronization signal. A numerical example has been given to show the effe…

Measurement of the Lund jet plane using charged particles in 13 TeV proton-proton collisions with the ATLAS detector

2020

The prevalence of hadronic jets at the LHC requires that a deep understanding of jet formation and structure is achieved in order to reach the highest levels of experimental and theoretical precision. There have been many measurements of jet substructure at the LHC and previous colliders, but the targeted observables mix physical effects from various origins. Based on a recent proposal to factorize physical effects, this Letter presents a double-differential cross-section measurement of the Lund jet plane using 139  fb−1 of √s=13  TeV proton-proton collision data collected with the ATLAS detector using jets with transverse momentum above 675 GeV. The measurement uses charged particles to ac…

Desarrollo conjunto de competencias mediante la colaboración interdisciplinar. Algunas experiencias en la licenciatura de Traducción e Interpretación

2009

Presentamos una experiencia de innovación educativa llevada a cabo en la Facultad de Traducción e Interpretación de Soria entre los cursos académicos 2008/08 y 2008/09: Un proyecto de colaboración entre profesores y alumnos de diferentes asig-naturas con el apoyo de las TIC.
 Explicaremos el contexto en el que surge el proyecto, el marco teórico que da sentido a nuestro trabajo, las actividades formativas llevadas a cabo (con los alumnos y entre los propios profesores), el papel que juegan las nuevas tecnologías y algunos resulta-dos académicos conseguidos. En las consideraciones finales reflexionamos sobre los resultados metodológicos derivados de la experiencia.This paper presents an …

Retención a los 6 años en un programa de mantenimiento con metadona y variables relacionadas

2001

Objetivos: conocer la retención en un PMM a los 6 años de una población de heroinóma¬nos de larga evolución y las variables relacionadas con una mayor adherencia.Pacientes, material y métodos: se estudiaron 132 dependientes de opiáceos que comenza¬ron un PMM entre 1991-92. Se les administró un protocolo "ad hoc" recogiendo varia¬bles sociodemográficas y clínicas. Se calculó la retención en tratamiento mediante análisis de supervivencia de Kaplan-Mayer y se buscaron las variables relacionadas con ella.Resultados: el perfil de los estudiados era el de un heroinómano de larga evolución con severos problemas médicos y sociales. La retención ajustada fue del 70,1% a los seis años. Las pérdidas s…

On the arithmetic and geometry of binary Hamiltonian forms

2011

Given an indefinite binary quaternionic Hermitian form $f$ with coefficients in a maximal order of a definite quaternion algebra over $\mathbb Q$, we give a precise asymptotic equivalent to the number of nonequivalent representations, satisfying some congruence properties, of the rational integers with absolute value at most $s$ by $f$, as $s$ tends to $+\infty$. We compute the volumes of hyperbolic 5-manifolds constructed by quaternions using Eisenstein series. In the Appendix, V. Emery computes these volumes using Prasad's general formula. We use hyperbolic geometry in dimension 5 to describe the reduction theory of both definite and indefinite binary quaternionic Hermitian forms.