1,721,564 research outputs found

    Il valore inclusivo dell’orientamento nella Scuola secondaria di secondo grado: la parola ai/alle docenti orientatori/orientatrici.

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    The educational guidance activities aimed at the secondary School, which started in the 2023/24 school year, represent a means of accompanying each pupil towards global growth and the construction of his or her own future, in full recognition of his or her own limits and capabilities. The innovative interventions, pro-moted by Ministerial Decree no. 328/2022 and by the subsequent new Guidelines for school orientation for the first and second cycle of education, envisage the institution of the new figures of the tutor teacher and the guid-ance teacher to support the choices of all students in the continuation of their course of study or in entering the world of work. This contribution proposes a case study conducted at two upper secondary schools in Rome from which positions, reflections, considerations and evaluations by the guidance teachers emerge regarding the de-gree of incisiveness and/or criticality of the educational practices of guidance

    Exploring the influence of friction in the puncture mechanics of soft solids

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    Friction is an ever-present force in our lives, affecting the interaction between objects in numerous ways. The common hypothesis of frictionless contact between a foreign rigid object (needle) and a target material during puncturing leads to a constant penetration force. However, experimental observations reveal a linear increase in penetration force as the needle tip delves deeper. This force increment arises from the interplay of friction and adhesion at needle-solid interface. The present work provides an insight into the measure of friction and adhesion quasi-static characteristics at the needle-solid interface through puncture experiments. To this end, an axisymmetric hyperelastic model is presented to describe the expansion of a cavity under the contact pressure of the penetrating needle. In addition, the competing mechanisms of cavity expansion and mode I cracking during needle penetration in a soft solid are discussed
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