L'expressió escrita i els continguts de l'humor a la literatura infantil i juvenil catalana de 1904 a 2004: educació en els valors

L'humor permet entendre i organitzar el món. És un aspecte en l'educació de la identitat cultural que comença tan aviat com la canalla pot seguir una narració oral, i que s'intensifica a mesura que la lectura esdevé un hàbit. L'humor escrit ofereix recursos expressius i camps semàntics determinats per la llengua, i continguts i referents culturals determinats pels valors socials; el seu codi inclou convencions amb el lector sobre la presentació i l'argument. Com a estratègia d'adaptació, l'humor es va modificant segons les circumstàncies socials al llarg del temps. El present treball es centra en la literatura per a infants i joves escrita en català com a idioma original i editada entre el 1904 i el 2004.

Exploration of geological variability and possible processes through the use of compositional data analysis: an example using scottish metamorphosed

Developments in the statistical analysis of compositional data over the last two decades have made possible a much deeper exploration of the nature of variability, and the possible processes associated with compositional data sets from many disciplines. In this paper we concentrate on geochemical data sets. First we explain how hypotheses of compositional variability may be formulated within the natural sample space, the unit simplex, including useful hypotheses of subcompositional discrimination and specific perturbational change. Then we develop through standard methodology, such as generalised likelihood ratio tests, statistical tools to allow the systematic investigation of a complete lattice of such hypotheses. Some of these tests are simple adaptations of existing multivariate tests but others require special construction. We comment on the use of graphical methods in compositional data analysis and on the ordination of specimens. The recent development of the concept of compositional processes is then explained together with the necessary tools for a staying- in-the-simplex approach, namely compositional singular value decompositions. All these statistical techniques are illustrated for a substantial compositional data set, consisting of 209 major-oxide and rare-element compositions of metamorphosed limestones from the Northeast and Central Highlands of Scotland. Finally we point out a number of unresolved problems in the statistical analysis of compositional processes