Computer Vision and Graphics for Heritage Preservation and Digital Archaeology

The goal of this work is to provide attendees with a survey of topics related to Heritage Preservation and Digital Archeology, which are challenging and motivating subjects to both computer vision and graphics community. These issues have been gaining increasing attention and priority within the scientific scenario and among funding agencies and development organizations over the last years. Motivations to this work are the recent efforts in the digital preservation of cultural heritage objects and sites before degradation or damage caused by environmental factors or human development. One of the main focuses of these researches is the development of new techniques for realistic 3D model building from images, preserving as much information as possible. We intend to introduce and discuss several emerging topics in computer vision and graphics related to the proposed theme while highlighting the major contributions and advances in these fields

Campos Organizacionais: Seis Diferentes Leituras e a Perspectiva de Estruturação

The concept of the organizational field has been greatly dealt with in the literature on institutional theory in recent years. As the concept of field involves a relational and symbolic dimension, we propose that the theory of structuration, based on the logic of recursiveness between agency and structure should be adapted to the understanding of the field dynamically. In this way, the objective of this theoretical essay is to deal with the dynamic of the organizational field using structurationist logic, allowing that from this logic we recall both the importance of the practice in the structuration process of the organizational field and the historical and recursive character which may constrain or enable the actions of social actors. To this end, we revise the concept of field in different perspectives of analysis, reflecting on the implication of the theoretical presuppositions of each approach and then discuss in a critical manner the theoretical foundation of the structuration process of organizational fields based on the structurationist approach. We conclude the paper with propositions pertaining to the revision of the concept of field from a multiparadigmatic viewpoint in which structure and agency are recursively implied

Organizational Fields and the Structuration Perspective: Analytical Possibilities

The concept of the organizational field has been greatly dealt with in the literature on institutional theory in recent years. As the concept of field involves a relational and symbolic dimension, we propose that the theory of structuration, based on the logic of recursiveness between agency and structure should be adapted to theunderstanding of the field dynamically. In this way, the objective of this theoretical essay is to deal with the dynamic of the organizational field using structurationist logic, allowing that from this logic we recall both the importance of the practice in the structuration process of the organizational field and the historical and recursive character which may constrain or enable the actions of social actors. To this end, we revise the concept of field in different perspectives of analysis, reflecting on the implication of the theoretical presuppositions of each approach and then discuss in a critical manner the theoretical foundation of the structuration process of organizational fields based on the structurationist approach. We conclude the paper with propositions pertaining to the revision of the concept of field from a multiparadigmatic viewpoint in which structure and agency are recursively implied

A Questão da Agência em Redes Acadêmicas de Pesquisa : Centralidade, Produtividade e Escolha

No presente artigo, investigamos o papel da agência na construção do conhecimento científico com base em pressupostos do estruturacionismo. Para tanto, a noção de agência foi empiricamente tratada a partir da análise de redes sociais, tendo como indicadores a centralidade, produtividade e escolha preferencial de pesquisadores do campo da pesquisa na área dos estudos organizacionais e da estratégia em organizações no Brasil. Foram considerados 2.332 artigos entre os anos de 1997 e 2005, por meio dos quais analisamos 2.072 pesquisadores. Destacamos o papel de alguns deles, classificados como continuantes, para avaliar mais detalhadamente indicadores estruturais, além da trajetória de sua produção acadêmica. Nossos achados permitem afirmar que não somente a estrutura social apresenta dualidade, condicionando e habilitando a ação, mas também a própria capacidade de agência. Vista correntemente na literatura como potencialmente transformadora, ela também condiciona a ação dos agentes, pois suas capacidades projetivas tendem a ser guiadas por condutas do passado, no sentido de vincular suas ações à trajetória social e intelectual vivida no campo, podendo acarretar maior conformidade e habitualidade na pesquisa. Denominamos esse fenômeno como paradoxo da capacidade de agência, pois a mesma via que habilita a ação também a limita cognitivamente.In this article, we examine the role of the agency in the construction of scientific knowledge under the assumptions of structurationism. For this purpose, the notion of agency has been empirically treated from the social network analysis, with the indicators being the centrality, productivity and preferential attachment of researchers in the field of organizational studies and strategy in Brazil. We analyzed 2,072 researchers, in that we highlight the role of some of them, classified as continuants, in order to evaluate structural indicators in more detail, in addition to the trajectory of their academic production. Our findings allow us to affirm that it is not only the social structure that shows duality, conditioning and enabling the action, but also the capacity of agency itself. Currently viewed in the literature as a transforming capacity, it also conditions the action of agents because their projective capacities tend to be guided by past conduct in that they link their actions to the social and intellectual trajectory they have experienced in the field, bringing greater conformity and habitualness to research. We have addressed this phenomenon into a cognitive realm and have called it as paradox of agency capability

Institucionalismo Organizacional e Práticas de Governança Corporativa

In this essay, we outline an institutional approach concerning corporate governance, highlighting its dimensions, institutions, and institutionalization. Special attention is paid to the legitimizing quality of governance, since legitimacy is the central point in organizational institutionalism. The literature claims that the legitimacy of governance practices is based not only on rational-utilitarian questions but also on matters of social and symbolic order, e.g., the ideal of distributive justice, in which minority shareholders seek to justify greater control over controlling shareholders and managers guiding organizations on the morality of such requirements. We delineate some elements of the process of institutionalization of corporate governance practices around the world, noting that the emergence of the phenomenon and its spread is the result of several factors that end up pushing the product and capital markets to conform their practices to internationally prevailing standards. We conclude this theoretical essay by highlighting the implications for understanding the governance practices from the standpoint of organizational institutionalism, unfolding possibilities for future studies

ANÁLISE INSTITUCIONAL DA CONSTRUÇÃO DO CONHECIMENTO CIENTÍFICO EM MUNDOS PEQUENOS

O objetivo do presente artigo foi verificar como a estrutura de relacionamento no campo da pesquisa em organizações e estratégia no Brasil condiciona a construção do conhecimento científico nesse campo social. Por meio da análise de redes e com o apoio da análise de conteúdo, foram avaliados 2.332 artigos publicados entre os anos de 1997 e 2005. Com base na vertente estruturacionista da perspectiva institucional de análise examinamos a influência das relações entre autores na persistência e mudança de temáticas no decorrer do tempo. Verificamos que o campo apresenta uma configuração do tipo mundos pequenos (small worlds), o que lhe garante capacidade de persistência institucional em momentos de grande crescimento. Apesar da rede não ser completamente conectada, observamos alto grau de homogeneidade dentro dos agrupamentos mesmo em face da ocorrência de heterogeneidade de temas de pesquisa no campo como um todo. Tal constatação indica que a imersão em grupos sociais condiciona o que é legitimamente aceito no campo científico. A configuração estrutural nos moldes de mundos pequenos possibilita que o campo mantenha significados compartilhados, garantindo durabilidade dinâmica às instituições

Differential Evolution Algorithm for Identification of Structural Damage in Steel Beams

Problems involving errors and uncertainties from the use of numerical and experimental responses of beams using optimization processes have been studied by many researchers. In this field, to simulate the real behavior of structures, especially in problems involving damage, it is required to have reliable experimental results in order to adjust a numerical model. These difficulties may be associated for example to modeling the connection stiffness, support conditions, or relevant parameters in structures involving damages among others. This paper proposes a new methodology to detect damage in steel beams using the Differential Evolution Technique based on experimental and numerical data. The results show a great potential of the methodology to solve damage detection problems

KINEMATICAL ANALYSIS OF BANDAL AND DOLYO TAEKWONDO KICKS OF A HIGH LEVEL FEMALE ATHLETE

The purpose of this study was to analyze the kinematics of two Taekwondo kicks performed by a high level female athlete. The kicks were compared according to three main factors: a) type of kick (Bandal or Dolyo), b) foot of kick (right or left foot); c) kick starting with the kicking foot in front of the support limb or behind (front or back foot).The DVideo kinematical analysis system was used to reconstruct the 3D coordinates of twelve landmarks. The study was able to identify the main differences between the two most frequently used Taekwondo kicks, showed that the initial condition should be considered when comparing kicks and revealed differences between kicks accomplished with right or left foot of this high level athlete