Search results for "Opera"
showing 10 items of 8665 documents
(Re) Politizando la Solidariedad Internacional: Pensando la Cooperación como Educación para una Ciudadanía Global Radical
2017
[EN] The present moment of crisis regarding the identity and the resources of development aid calls for a deep reflection in order to recover the sense and the transformative aim of international development. In this work, we consider that we can recover a transformative agenda if we consider development aid as an space in which transformative learning processes take place. These learning processes lead to the construction of what can be called a ¿radical global citizenship¿. In development aid, individuals and organizations work together in social change processes. In these processes, people and organizations change through process of emergent and informal learning. Instead of considering …
Local State-Society Relations in Romania
2020
The chapter on Romania illustrates the working of networks of local state-society relations in a top-down context where the central government mandates the creation of networks and local governments are supposed to initiate and operationalize them. The chapter discusses two collaborative networks—local action groups and community consultative structures for child protection—and two self-reflective networks—local working groups on Roma issues and consultative committees on youth issues. The networks analyzed vary in terms of policy field coverage (broader vs. narrower field of activity), territorial coverage (single vs. multiple municipalities), and perceived stability in time. The analysis …
Global trends in a fragile context : public–nonpublic collaboration, service delivery and social innovation
2020
PurposeThis study aims to enhance the understanding of the nature of collaboration between public and nonpublic actors in delivering social services and achieving social innovation in a fragile context, with an emphasis on the role of civil society organisations (CSOs). The paper focuses on Bosnia and Herzegovina, a Southeastern European country which has faced a turbulent post-conflict transition and experienced challenges in its social welfare policy and practice.Design/methodology/approachThis study uses institutional theory, particularly new institutionalism and institutional networking, as a lens through which to understand public and nonpublic collaboration and social innovation withi…
Alvis Hermanis: “To Be Everything and Nothing at All”
2021
This chapter is about the oeuvre of Alvis Hermanis, a Latvian stage and opera director and artistic leader of New Riga Theatre. It focuses on the road Hermanis took from the 1990s, as a young and rebellious postmodern director, into the second decade of the twenty-first century. In such productions as Long Life (2003), Inspector General (2006), The Sound of Silence (2007) and Brodsky/Barishnikov (2015), he approaches psychological theatre on a new, innovative level, exploring it as a kind of time machine in order to study people and history. In 2013, Hermanis entered the world of opera. In his productions including Alois Zimmerman’s Die Soldaten (2013), Leos Janacek’s Jenufa (2014) and so o…
Combining workload balance and patient priority maximisation in operating room planning through hierarchical multi-objective optimisation
2022
Abstract Previous analysis suggested the opportunity to consider the preferences of different stakeholders (hospital, patients, doctors and nurses) through the adoption of both patient priority maximisation and workload balance as performance criteria. The aim of this paper is to develop an effective and efficient solution approach for the operating room planning and scheduling capable to take into account the patient priority maximisation and workload balance criteria at the same time. This work is inspired by the need of a deeper understanding of the quality of the solutions obtained when a combination of the two criteria leads the OR planning decisions. Starting from a hierarchical multi…
Complex powers and non-compact manifolds
2002
We study the complex powers $A^{z}$ of an elliptic, strictly positive pseudodifferential operator $A$ using an axiomatic method that combines the approaches of Guillemin and Seeley. In particular, we introduce a class of algebras, ``extended Weyl algebras,'' whose definition was inspired by Guillemin's paper on the subject. An extended Weyl algebra can be thought of as an algebra of ``abstract pseudodifferential operators.'' Many algebras of pseudodifferential operators are extended Weyl algebras. Several results typical for algebras of pseudodifferential operators (asymptotic completeness, construction of Sobolev spaces, boundedness between apropriate Sobolev spaces, >...) generalize to…
The expressive power of the shuffle product
2010
International audience; There is an increasing interest in the shuffle product on formal languages, mainly because it is a standard tool for modeling process algebras. It still remains a mysterious operation on regular languages.Antonio Restivo proposed as a challenge to characterize the smallest class of languages containing the singletons and closed under Boolean operations, product and shuffle. This problem is still widely open, but we present some partial results on it. We also study some other smaller classes, including the smallest class containing the languages composed of a single word of length 2 which is closed under Boolean operations and shuffle by a letter (resp. shuffle by a l…
Positive solutions for singular double phase problems
2021
Abstract We study the existence of positive solutions for a class of double phase Dirichlet equations which have the combined effects of a singular term and of a parametric superlinear term. The differential operator of the equation is the sum of a p-Laplacian and of a weighted q-Laplacian ( q p ) with discontinuous weight. Using the Nehari method, we show that for all small values of the parameter λ > 0 , the equation has at least two positive solutions.
Impact of chaotic dynamics on the performance of metaheuristic optimization algorithms : An experimental analysis
2022
Random mechanisms including mutations are an internal part of evolutionary algorithms, which are based on the fundamental ideas of Darwin's theory of evolution as well as Mendel's theory of genetic heritage. In this paper, we debate whether pseudo-random processes are needed for evolutionary algorithms or whether deterministic chaos, which is not a random process, can be suitably used instead. Specifically, we compare the performance of 10 evolutionary algorithms driven by chaotic dynamics and pseudo-random number generators using chaotic processes as a comparative study. In this study, the logistic equation is employed for generating periodical sequences of different lengths, which are use…
Integrability of the one dimensional Schrödinger equation
2018
We present a definition of integrability for the one dimensional Schroedinger equation, which encompasses all known integrable systems, i.e. systems for which the spectrum can be explicitly computed. For this, we introduce the class of rigid functions, built as Liouvillian functions, but containing all solutions of rigid differential operators in the sense of Katz, and a notion of natural boundary conditions. We then make a complete classification of rational integrable potentials. Many new integrable cases are found, some of them physically interesting.