Understanding pro-environmental travel behaviours in Western Europe

This study aims at understanding, from a gender perspective, the reasons behind citizens’ choice of using public transport, and whether this choice is driven by pro-environmental behaviour. Using Eurobarometer data (2013), we perform ordered logistic regressions comparatively for Germany, Italy and the Netherlands. Financial, political and environmental factors are shown to have significant roles in shaping travel behaviours, with interesting gender and cross-country differences

Convergence of the iterated Aluthge transform sequence for diagonalizable matrices

AbstractGiven an r×r complex matrix T, if T=U|T| is the polar decomposition of T, then, the Aluthge transform is defined byΔ(T)=|T|1/2U|T|1/2. Let Δn(T) denote the n-times iterated Aluthge transform of T, i.e. Δ0(T)=T and Δn(T)=Δ(Δn−1(T)), n∈N. We prove that the sequence {Δn(T)}n∈N converges for every r×rdiagonalizable matrix T. We show that the limit Δ∞(⋅) is a map of class C∞ on the similarity orbit of a diagonalizable matrix, and on the (open and dense) set of r×r matrices with r different eigenvalues

Convergence of the iterated Aluthge transform sequence for diagonalizable matrices

Given an r × r complex matrix T ,ifT = U|T | is the polar decomposition of T , then, the Aluthge transform is defined by Δ(T)=|T |1/2U|T |1/2. Let Δn(T ) denote the n-times iterated Aluthge transform of T ,i.e.Δ0 (T ) = T and Δn(T ) = Δ(Δn-1(T )), n ∈ N. We prove that the sequence {Δn(T )}n∈N converges for every r × r diagonalizable matrix T .We show that the limit Δ∞(·) is a map of class C ∞ on the similarity orbit of a diagonalizable matrix, and on the (open and dense) set of r × r matrices with r different eigenvalues.Facultad de Ciencias Exacta

The iterated Aluthge transforms of a matrix converge

Given an r×r complex matrix T, if T=U|T| is the polar decomposition of T, then, the Aluthge transform is defined by Δ(T)=|T|1/2U|T|1/2. Let Δn(T) denote the n-times iterated Aluthge transform of T, i.e., Δ0(T)=T and Δn(T)=Δ(Δn-1(T)), nεN. We prove that the sequence {Δn(T)}nεN converges for every r×r matrix T. This result was conjectured by Jung, Ko and Pearcy in 2003. We also analyze the regularity of the limit function.Facultad de Ciencias Exacta

Optimal restoration of noisy 3D X-ray data via shearlet

decomposition

NUOVI DERIVATI 2-ACETAMMIDOBENZAMMIDICI: ATTIVITÀ ANTIPROLIFERATIVA E POSSIBILE MECCANISMO DI AZIONE

Le cinnammido benzammidi rappresentano una classe di sostanze biologicamente attive di grande interesse farmaceutico. Nonostante siano state descritte per svariate attività biologiche, nessun dato è stato riportato sulla loro attivita antitumorale. Inizialmente una serie di 2-cinammidobenzammidi variamente sostituite sono state sintetizzate e valutate per la loro attività antiproliferativa. Partendo dal derivato risultato più attivo, il 2-cinnammido-5-iodobenzammide, che ha mostrato una percentuale di inibizione della crescita sulle K562 del 74% a 10μM, sono stati sintetizzati una serie di derivati al fine di approfondirne la SAR.I composti così ottenuti sono risultati attivi nei confronti di numerose linee cellulari tumorali a concentrazioni micromolari e submicromololari inducendo un blocco del ciclo cellulare delle K562 in fase G2M. Inoltre i derivati sintetizzati sono in grado di indurre apoptosi nelle cellule HEP G2

Convergence of the iterated Aluthge transform sequence for diagonalizable matrices

Given an r × r complex matrix T ,ifT = U|T | is the polar decomposition of T , then, the Aluthge transform is defined by Δ(T)=|T |1/2U|T |1/2. Let Δn(T ) denote the n-times iterated Aluthge transform of T ,i.e.Δ0 (T ) = T and Δn(T ) = Δ(Δn-1(T )), n ∈ N. We prove that the sequence {Δn(T )}n∈N converges for every r × r diagonalizable matrix T .We show that the limit Δ∞(·) is a map of class C ∞ on the similarity orbit of a diagonalizable matrix, and on the (open and dense) set of r × r matrices with r different eigenvalues.Facultad de Ciencias Exacta

The iterated Aluthge transforms of a matrix converge

Given an r×r complex matrix T, if T=U|T| is the polar decomposition of T, then, the Aluthge transform is defined by Δ(T)=|T|1/2U|T|1/2. Let Δn(T) denote the n-times iterated Aluthge transform of T, i.e., Δ0(T)=T and Δn(T)=Δ(Δn-1(T)), nεN. We prove that the sequence {Δn(T)}nεN converges for every r×r matrix T. This result was conjectured by Jung, Ko and Pearcy in 2003. We also analyze the regularity of the limit function.Facultad de Ciencias Exacta

Iterated Aluthge transforms: a brief survey

Given an r × r complex matrix T, if T = U|T| is the polar de- composition of T, then the Aluthge transform is defined by ∆(T) = |T|1/2U|T|1/2. Let ∆n(T) denote the n-times iterated Aluthge transform of T, i.e. ∆0(T) = T and ∆n(T) = ∆(∆n−1(T)), n 2 N. In this paper we make a brief survey on the known properties and applications of the Aluthge trasnsorm, particularly the recent proof of the fact that the sequence {∆n(T)}n ∊ N converges for every r ×r matrix T. This result was conjectured by Jung, Ko and Pearcy in 2003.Facultad de Ciencias Exacta