This book overcomes the separation existing in literature between the static and the dynamic bifurcation worlds. It brings together buckling and post-buckling problems with nonlinear dynamics, the bridge being represented by the perturbation method, i.e., a mathematical tool that allows for solving static and dynamic problems virtually in the same way. The book is organized as follows: Chapter one gives an overview; Chapter two illustrates phenomenological aspect of static and dynamic bifurcations; Chapter three deals with linear stability analysis of dynamical systems; Chapter four and five discuss the general theory and present examples of buckling and post-buckling of elastic structures; Chapter six describes a linearized approach to buckling, usually adopted in the technical literature, in which pre-critical deformations are neglected; Chapters seven to ten, analyze elastic and elasto-plastic buckling of planar systems of beams, thin-walled beams and plate assemblies, respectively; Chapters eleven to thirteen, illustrate dynamic instability phenomena, such as flutter induced by follower forces, aeroelastic bifurcations caused by wind flow, and parametric excitation triggered by pulsating loads. Finally, Chapter fourteen discusses a large gallery of solved problems, concerning topics covered in the book. An Appendix presents the Vlasov theory of open thin-walled beams. The book is devoted to advanced undergraduate and graduate students, as well as engineers and practitioners. The methods illustrated here are immediately applicable to model real problems. The Book Introduces, in a simple way, complex concepts of bifurcation theory, by making use of elementary mathematics Gives a comprehensive overview of bifurcation of linear and nonlinear structures, in static and dynamic fields Contains a chapter in which many problems are solved, either analytically or numerically, and results commented
Simona Bianconi explores the creative process of writing, its communicative aspects and the traces of the writer himself in his creations, as well as the effect writing has on the personality of the author.Through the analysis of texts by six outstanding protagonists of the Italian novel in the first half of the 20th century, Bianconi gives answers to fascinating questions that arise about its creators and encourages the reader to experience and understand writing as a revelation of creativity and life.L'invenzione letteraria può dare vita a un secondo scrittore, a sua volta all'opera. A sua volta colui che comunica al di là della parola, che si assume l'importante responsabilità della creazione, che intende lasciare traccia di sé. Da lui nasce il libro, sua sfida, sostegno, tormento; prova unica o reiterata. Come prende forma nel romanzo di primo grado la figura centrale dell'autore? Come si mostra l'immagine ammaliante del suo lavoro nelle storie di lotta e rinuncia, successo e mediocrità presentate? E qual è l'effetto della scrittura sul personaggio - anche nella sua interazione sociale - che, pure tra gravi ostacoli, la elegge tra le vie da percorrere e ne fa il proprio destino?Attraverso la lettura di testi di sei straordinari protagonisti del romanzo italiano nella prima metà del Novecento, ideatori di altrettanti artisti, donne e uomini, si è tentato di dare una risposta ad interrogativi seducenti che il lettore si pone.. In tal modo, penetrando il motivo dell'esperienza della letteratura, si giunge a toccare la scrittura come rivelazione e sigillo di vita.
Seeking the Mothers in Ovid's "Heroides" explores Ovid's reconceptualization of the heroines' maternal experience. Rather than aligning them with the stereotypical roles of Roman women, motherhood enables the Ovidian heroines to challenge traditional norms with irreverent perspectives on gender categories and familial relationships. To confront these perspectives and overcome the dialectic between the (male) voice of the poet and the (female) voice of the heroines, Seeking the Mothers in Ovid's "Heroides" argues for a form of polyphonic "cooperation" between the two voices, thus providing new angles on ironical discourse and gender fluidity within the Heroides. By reading the Heroides both through feminist theory and against Ovid's poetic production, Simona Martorana provides a novel approach to describe how motherhood enhances the heroines' agency, drawing on works of Kristeva, Irigaray, Butler, Mulvey, Cavarero, Braidotti, and Ettinger. The application of theory is flexible throughout Seeking the Mothers in Ovid's "Heroides" and tailored to the nuances of specific passages rather than being uniformly imposed on the ancient text. Seeking the Mothers in Ovid's "Heroides" reveals how the irony, ambiguity, and polyphony intrinsic to Ovid's poetry are amplified by the heroines' poetic voices. Martorana breaks new ground by incorporating contemporary feminist theories within the analysis of the Heroides and provides an original comprehensive analysis of motherhood that encompasses other Ovidian works, Latin poetry, and classical literature more broadly.
This book reviews the period from the unification of Italy to the fascist era through significant Neapolitan performers such as Gilda Mignonette and Enrico Caruso. It traces the transformation of a popular tradition written in dialect into a popular tradition, written in Italian, that contributed to the production of "American" identity.
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