4,487 research outputs found
Futuros designers como agentes de mudança : exploração do ensino do design focado em inovação social e sustentabilidade
ABSTRACT : This paper, part of a Ph.D. in Design research, focused on
discussing the role of Design Education on training future designers to be
actors of change. It describes the methodology of a workshop for design
students during the Design Week of Mérida, at Universidad de
Extremadura – Spain. The workshop discussed the point of view of
students in problem-solving, and what they believe to be the skills,
methods, and partnerships for design to achieve such a change in its
approach and how Design Education plays a part in preparing the future
genera_on of designers to tackle social innovation and sustainability
problems. The results showed how these particular group of future
designers see as crucial in the given context and the possibilities for
improvement on a system that struggles to be resilient and respond at a
faster pace.O presente trabalho é parte do projeto de investigação para o
programa de Doutoramento em Design e foca em discutir o papel do
Ensino do Design na educação de futuros designers como agentes de
mudança. O artigo descreve a metodologia aplicada a um workshop
facilitado para alunos de design durante a Semana de Design de Mérida,
na Universidad de Extremadura, em Espanha. A atividade discutiu os
pontos de vista dos estudantes no tocante à resolução de problemas
complexos e suas crenças sobre as habilidades, métodos e parcerias
necessárias ao Design para que alcance as mudanças necessárias, para
além de discutir o papel do Ensino do Design na preparação da futura
geração de profissionais focados na resolução de problemas de
sustentabilidade e inovação social. O resultado demonstra o que este
particular grupo de futuros designers entendem como sendo crucial neste
contexto e as possibilidades para melhorias em um sistema que sofre para
se tornar resiliente e responder às questões sociais de maneira mais ágil.info:eu-repo/semantics/publishedVersio
Ground state for a massive scalar field in BTZ spacetime with Robin boundary conditions
We consider a real, massive scalar field in BTZ spacetime, a 2+1-dimensional
black hole solution of the Einstein's field equations with a negative
cosmological constant. First, we analyze the space of classical solutions in a
mode decomposition and we characterize the collection of all admissible
boundary conditions of Robin type which can be imposed at infinity. Secondly,
we investigate whether, for a given boundary condition, there exists a ground
state by constructing explicitly its two-point function. We demonstrate that
for a subclass of the boundary conditions it is possible to construct a ground
state that locally satisfies the Hadamard property. In all other cases, we show
that bound state mode solutions exist and, therefore, such construction is not
possible.Comment: 17 pages, 3 figure
Mode solutions for a Klein-Gordon field in anti-de Sitter spacetime with dynamical boundary conditions of Wentzell type
We study a real, massive Klein-Gordon field in the Poincar\'e fundamental
domain of the -dimensional anti-de Sitter (AdS) spacetime, subject to a
particular choice of dynamical boundary conditions of generalized Wentzell
type, whereby the boundary data solves a non-homogeneous, boundary Klein-Gordon
equation, with the source term fixed by the normal derivative of the scalar
field at the boundary. This naturally defines a field in the conformal boundary
of the Poincar\'e fundamental domain of AdS. We completely solve the equations
for the bulk and boundary fields and investigate the existence of bound state
solutions, motivated by the analogous problem with Robin boundary conditions,
which are recovered as a limiting case. Finally, we argue that both Robin and
generalized Wentzell boundary conditions are distinguished in the sense that
they are invariant under the action of the isometry group of the AdS conformal
boundary, a condition which ensures in addition that the total flux of energy
across the boundary vanishes.Comment: 12 pages, 1 figure. In V3: refs. added, introduction and conclusions
expande
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