Search results for "RICE"

La competenza digitale all’università per la progettazione di percorsi di Media Education Digital literacy at university to design Media Education

2015

La crescente digitalizzazione e globalizzazione dei media, l’ampia diversificazione dell’offerta mediale, con i problemi valoriali ed etici che essa pone, ripresentano e confermano le ragioni che fanno dell’educazione ai media un compito imprescindibile di chi si occupa di educazione. Con interventi educativi specifici e fornendo loro adeguati strumenti di valutazione e di autovalutazione, i futuri educatori vanno aiutati ad acquisire le adeguate competenze digitali necessarie per l’acquisizione della capacità di scelta autonoma e responsabile dei media che permetta loro di progettare percorsi di media education in ambito educativo. La competenza mediale sollecita la capacità di insegnanti …

Caracterización de las áreas urbanas gallegas en función de los flujos de movilidad obligada

2010

La realidad territorial en los municipios gallegos evolucionó a ritmos dispares, afectados por dinámicas muy diferentes en cada uno de los casos. Los problemas en la aplicación de la normativa urbanística y de los instrumentos técnicos para la gestión del suelo gestaron unos ámbitos urbanos desconectados de su realidad metropolitana. Las áreas de influencia en las ciudades de Galicia presentan modelos complejos, adaptados a las dificultades que les privaron de una gestión prudente y coherente de los nuevos territorios urbanos. En la evaluación de la nueva realidad urbana, de sus condiciones y características, la movilidad residencial y la recurrente diaria es un elemento de primer rango de …

Disabilità complessa: quali risposte alle domande terapeutiche riabilitative, educative e formative nei contesti del territorio e dei centri speciali…

2008

Defining relations of minimal degree of the trace algebra of 3×3 matrices

2008

Abstract The trace algebra C n d over a field of characteristic 0 is generated by all traces of products of d generic n × n matrices, n , d ⩾ 2 . Minimal sets of generators of C n d are known for n = 2 and n = 3 for any d as well as for n = 4 and n = 5 and d = 2 . The defining relations between the generators are found for n = 2 and any d and for n = 3 , d = 2 only. Starting with the generating set of C 3 d given by Abeasis and Pittaluga in 1989, we have shown that the minimal degree of the set of defining relations of C 3 d is equal to 7 for any d ⩾ 3 . We have determined all relations of minimal degree. For d = 3 we have also found the defining relations of degree 8. The proofs are based …

On the computational power of affine automata

2017

We investigate the computational power of affine automata (AfAs) introduced in [4]. In particular, we present a simpler proof for how to change the cutpoint for any affine language and a method how to reduce error in bounded error case. Moreover, we address to the question of [4] by showing that any affine language can be recognized by an AfA with certain limitation on the entries of affine states and transition matrices. Lastly, we present the first languages shown to be not recognized by AfAs with bounded-error.

On the ∗-cocharacter sequence of 3×3 matrices

2000

Abstract Let M 3 (F) be the algebra of 3×3 matrices with involution * over a field F of characteristic zero. We study the ∗ -polynomial identities of M 3 (F) , where ∗=t is the transpose involution, through the representation theory of the hyperoctahedral group B n . After decomposing the space of multilinear ∗ -polynomial identities of degree n under the B n -action, we determine which irreducible B n -modules appear with non-zero multiplicity. In symbols, we write the nth ∗ -cocharacter χ n (M 3 (F),*)=∑ r=0 n ∑ λ⊢r,h(λ)⩽6 μ⊢n−r,h(μ)⩽3 m λ,μ χ λ,μ , where λ and μ are partitions of r and n−r , respectively, χ λ,μ is the irreducible B n -character associated to the pair (λ,μ) and m λ,μ ⩾0 i…

Weibull Model for Dynamic Pricing in e-Business

2011

As is the case with traditional markets, the sellers on the Internet do not usually know the demand functions of their customers. However, in such a digital environment, a seller can experiment different prices in order to maximize his profits. In this paper, we develop a dynamic pricing model to solve the pricing problem of a Web-store, where seller sets a fixed price and buyer either accepts or doesn’t buy. Frequent price changes occur due to current market conditions. The model is based on the two-parameter Weibull distribution (indexed by scale and shape parameters), which is used as the underlying distribution of a random variable X representing the amount of revenue received in the sp…

Divari territoriali nelle diseguaglianze di genere in Italia

2009

La volontà e il corpo - Seconda edizione riveduta e aggiornata

2022

Il volume affronta il tema del ruolo della volontà individuale nelle decisioni che riguardano, in senso ampio, il corpo umano. In particolare il principio di autodeterminazione, quale epifania del più ampio concetto di dignità personale, è posto a raffronto con le disposizioni in tema di trattamento sanitario - anche in riferimento alle prescrizioni anticipate di cura di cui alla l. n. 219/2017 - e con le scelte, assai complesse e dense di implicazioni sociali, sul termine della vita. La trattazione prosegue con l’esame della natura e della latitudine del consenso al prelievo di organi e tessuti da cadavere, per concludersi con l’analisi del ruolo della volontà nella procreazione, in quelle…

Control of Production-Distribution Systems under Discrete Disturbances and Control Actions

2011

This paper deals with the robust control and optimization of production-distribution systems. The model used in our problem formulation is a general network flow model that describes production, logistics, and transportation applications. The novelty in our formulation is in the discrete nature of the control and disturbance inputs. We highlight three main contributions: First, we derive a necessary and sufficient condition for the existence of robustly control invariant hyperboxes. Second, we show that a stricter version of the same condition is sufficient for global convergence to an invariant set. Third, for the scalar case, we show that these results parallel existing results in the set…