1,354,833 research outputs found
Scuola, memoria, storia. A proposito di un recente volume
No full textIl testo fa parte della nota critica scritta con i colleghi Carmela Covato e Alberto Barausse sul volume «Memorie di scuola. Contributo a una storia delle pratiche didattiche ed educative nelle scuole marchigiane attraverso le testimonianze di maestri e maestre (1945-1985)» di Lucia Paciaroni (EUM, 2020)
Medaglia d'onore d'argento per gli insegnanti elementari benemeriti della educazione popolare (1866)
No full textDiploma di benemerenza di I classe con medaglia ai benemeriti della scuola, della cultura e dell’arte (1950)
No full textLa parola ai bambini. A proposito di un recente studio sul «Giornalino della Domenica» di Vamba
No full textThis paper, which is based on the contributions of Roberto Sani, Lorenzo Cantatore, Michela D’Alessio and Alberto Barausse, has the objective of presenting and discussing the recent book by Rossella Andreassi, entitled «Caro Vamba». La Corrispondenza de Il Giornalino della Domenica (1906-1911). Il progetto di Luigi Bertelli per l’educazione civile dell’infanzia (Lecce, Pensa Multimedia, 2023). The work is notable for its methodology and the distinctive nature of the sources employed; it concentrates on the noteworthy publishing endeavor initiated by Bertelli in 1906 and his seminal project of promoting democratic and civil education. Of particular significance is the journal’s correspondence section, which afforded children a legitimate space in the democratic process, enabling their active participation, integration and, most crucially, their voices to be heard
La storia delle scuole rurali: un campo di ricerca ancora aperto tra dinamiche nazionalizzatrici e prospettive locali
No full textIntrodução: História da educação e migrações: olhares cruzados entre o local e o transnacional
No full textO livro Migrações e História da Educação: saberes, práticas e instituições, um olhar transnacional contribui para compreender as iniciativas de educação entre imigrantes e filhos de (e/i)migrantes italianos no Brasil, iniciadas por instituições religiosas, público-estatais e da sociedade civil, nos séculos XIX e XX. Os processos educativos e escolares, os modelos educacionais e as ferramentas para a circulação do conhecimento, as práticas de ensino e aprendizagem, em espaços e tempos culturalmente distintos; as práticas de promoção da identidade étnico-cultural, relacionada ao pertencimento à italianidade, constituem campo de pesquisa inédita, em torno do qual, numa perspectiva transnacional, os estudiosos aqui reunidos apre-sentam perspectivas de investigação, que se abrem para o campo da História da Educação e para sua relação com as migrações
Extending the effective-one-body Hamiltonian of black-hole binaries to include next-to-next-to-leading spin-orbit couplings
No full textIn the effective-one-body (EOB) approach, the dynamics of two compact objects of masses m1 and m2 and spins S1 and S2 is mapped into the dynamics of one test particle of mass μ=m1m2/(m1+m2) and spin S* moving in a deformed Kerr metric with mass M=m1+m2 and spin SKerr. In a previous paper, we computed an EOB Hamiltonian for spinning black-hole binaries that (i) when expanded in post-Newtonian orders, reproduces the leading-order spin-spin coupling and the leading and next-to-leading order spin-orbit couplings for any mass ratio, and (iii) reproduces all spin-orbit couplings in the test-particle limit. Here we extend this EOB Hamiltonian to include next-to-next-to-leading spin-orbit couplings for any mass ratio. We discuss two classes of EOB Hamiltonians that differ by the way the spin variables are mapped between the effective and real descriptions. We also investigate the main features of the dynamics when the motion is equatorial, such as the existence of the innermost stable circular orbit and of a peak in the orbital frequency during the plunge subsequent to the inspiral
Improved effective-one-body Hamiltonian for spinning black-hole binaries
No full textBuilding on a recent paper in which we computed the canonical Hamiltonian of a spinning test particle in curved spacetime, at linear order in the particle's spin, we work out an improved effective-one-body (EOB) Hamiltonian for spinning black-hole binaries. As in previous descriptions, we endow the effective particle not only with a mass m, but also with a spin S*. Thus, the effective particle interacts with the effective Kerr background (having spin S_Kerr) through a geodesic-type interaction and an additional spin-dependent interaction proportional to S*. When expanded in post-Newtonian (PN) orders, the EOB Hamiltonian reproduces the leading order spin-spin coupling and the spin-orbit coupling through 2.5PN order, for any mass-ratio. Also, it reproduces all spin-orbit couplings in the test-particle limit. Similarly to the test-particle limit case, when we restrict the EOB dynamics to spins aligned or antialigned with the orbital angular momentum, for which circular orbits exist, the EOB dynamics has several interesting features, such as the existence of an innermost stable circular orbit, a photon circular orbit, and a maximum in the orbital frequency during the plunge subsequent to the inspiral. These properties are crucial for reproducing the dynamics and gravitational-wave emission of spinning black-hole binaries, as calculated in numerical relativity simulations
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