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The paper examines gender and relational issues in the amorous and family context in Tre donne. Una storia d’amore e disamore of Dacia Maraini. Through mythological and literary antecedents, the author analyzes with a lively irony the male / female relationship, the mother-daughter bond, the generational conflict, the female genealogy, the sentimental ambivalence and she interprets the archetypes of the Feminine and the Great Mother, the antithesis life / death, the double, the birth, the female identity. The critical analysis, which also recognizes autobiographical motifs, makes use of psychoanalytic, psychological, theoretical and literary references.

1. “L’infinito sai cos’è?” http://www.matematicando.supsi.ch/index.php/2020/02/20/linfinito-sai-cose/ 2. Lolli, G. (2019). I teoremi di incompletezza. Bologna: il Mulino. 3. Sabena, C., Ferri, F., Martignone, F., & Robotti, E. (2019). Insegnare e apprendere matematica nella scuola dell’infanzia e primaria. Firenze: Mondadori Università. 4. Nicosia, G. G. (2019). Contare per ventine – Un'analisi etnomatematica di numerali del mondo. 5. D’Amore, B., Fandiño Pinilla, M. I., Marazzani, I., & Sbaragli, S. (2019). Le difficoltà di apprendimento in matematica. Il punto di vista della didattica. Bologna: Pitagora. 6. D’Amore, B., & Fandiño Pinilla, M. I. (2019). Zero. Bologna: Pitagora.

Tensile integrity across the scales of the living matter: a structural picture of the human cell Tensile integrity principle governs the existence of stable constructs in which sets of pre-tensed cables and pre-compressed struts mutually interconnect according to specific topological rules and exchange forces in a way to guarantee the structure’s overall self-equilibrium. Starting from the simplest form of 2-element bow-like system, several structural components can be arranged together to assemble increasingly intricate tensegrity architectures where bars levitate sustained by a precise interplay with tensed cables, whose peculiar organization balances the vector field of axial forces. Modulation of the internal pre-stress tunes tensegrity systems towards disparate forms with different rigidities and stored elastic energies, while the floating arrangement of the compressed elements and the possible chirality confer to the whole structure pronounced deployability. This makes tensile integrity a persuasive structural paradigm for explaining and reproducing some underlying mechanisms at the basis of several dynamics experimentally observed in single cells as well as at different scales of biological architectures. In particular, by deeply exploring the intra-cellular environment, one discovers that the cytoskeleton mechanically sustains the cell’s membrane, structurally integrates cellular sub-constituents and steers migration, adhesion and division activities by behaving as a dynamic tensegrity lattice, hierarchically assembled by protein filaments, in turn made of continuously reacting polymeric tensegrity-chains at the lower nano-scale.

Viene presentata un’esperienza didattica in cui è stato adottato l’approccio fipped classroom, integrato con una progettazione a ritroso, della quale si riportano i risultati di ricerca sulla percezione degli studenti. Il contesto di sperimentazione è stato un corso di geometria e didattica della geometria, rientrante nella formazione iniziale di futuri insegnanti di scuola elementare oferta dal Dipartimento formazione e apprendimento della Scuola universitaria professionale della Svizzera italiana (SUPSI), che ha sede a Locarno. Dai risultati emergono percezioni positive da parte degli studenti dell’approccio fipped classroom, rispetto alla sua efcacia, al confronto con la metodologia usuale e agli aspetti apprezzati o considerati da migliorare dell’intero corso. Da tali risultati sono state inoltre ricavate considerazioni operative sull’implementazione dell’approccio fipped classroom in ambito terziario. La ricerca si inserisce in un più ampio progetto di ricerca dal titolo Flipped classroom come approccio per lo sviluppo di competenze, che ha coinvolto diversi dipartimenti della SUPSI, in collaborazione con la Fernfachhochschule Schweiz di Briga e l’Università di Torino.

This paper presents the proposed corrections to the vulgato text of Leonardo Pisano's Liber Abaci. These corrections are based on the collation of some witnesses of the Teatry accomplished in view of his fist critical edition. We analyze, sometimes refuting their conclusions, previous philological studies on Teatry. We underline the difficulties experienced by philology in dealing with this matter. Accoedingly the initial state of the studies, the conclusions are provisional.

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