A blockmodel study of managerial hierarchies, verbal networks, and organizational culture in four hospitals

This study demonstrates and applies a social network methodology for studying the dynamics of hierarchies in organizations. Social network (blockmodel) analysis of verbal networks in four hospitals contrasted hierarchical and structurally equivalent partitions of the sociomatrices of frequent ties and perceptions of organizational culture. It was found that the verbal networks in these organizations follow a center periphery pattern rather than a hierarchical logic and that perceptions of culture vary more by verbal network than by formal hierarchy. The perceptions of culture of central groups in one organization are much like those of peripheral groups in another. In all four hospitals, structurally equivalent social networks are more important in predicting subcultures than are hierarchical groupings and hierarchy has a limited impact on the development of verbal networks. These findings suggest the value of an amoeba rather than a pyramid metaphor in interpreting the cultures and relational structures of organizations.

A gest��o do conhecimento na administra����o p��blica municipal em Curitiba com a aplica����o do m��todo OKA - Organizational Knowledge Assessment

O presente artigo objetiva analisar como a gest��o do conhecimento se manifesta na administra����o p��blica da Prefeitura Municipal de Curitiba; para tanto, buscou-se a aplica����o do m��todo Organizational Knowledge Assessment (OKA), criado pelo Banco Mundial e organizado pela Escola Nacional de Administra����o P��blica (Enap). No que tange aos procedimentos metodol��gicos, utilizou-se o estudo de caso como instrumento de pesquisa e coleta dos dados. Como resultado, identificaram-se o processo de avalia����o organizacional, indicando as similaridades e distin����es do desenvolvimento do m��todo de cada ��rea-fim, e a import��ncia de implantar sistematicamente um processo de avalia����o aliado ao planejamento da organiza����o p��blica com estrat��gias para disseminar, compartilhar e aplicar o conhecimento produzido.

A practical approach for profit-based unit commitment with emission limitations

This paper proposes a practical approach for profit-based unit commitment (PBUC) with emission limitations. Under deregulation, unit commitment has evolved from a minimum-cost optimisation problem to a profit-based optimisation problem. However, as a consequence of growing environmental concern, the impact of fossil-fuelled power plants must be considered, giving rise to emission limitations. The simultaneous address of the profit with the emission is taken into account in our practical approach by a multiobjective optimisation (MO) problem. Hence, trade-off Curves between profit and emission are obtained for different energy price profiles, in a way to aid decision-makers concerning emission allowance trading. Moreover, a new parameter is presented, ratio of change, and the corresponding gradient angle, enabling the proper selection of a compromise commitment for the units. A case study based on the standard IEEE 30-bus system is presented to illustrate the proficiency Of Our practical approach for the new competitive and environmentally constrained electricity supply industry.

Unit Commitment in a Competitive and Emission Constrained Environment

This paper is on the unit commitment problem, considering not only the economic perspective, but also the environmental perspective. We propose a bi-objective approach to handle the problem with conflicting profit and emission objectives. Numerical results based on the standard IEEE 30-bus test system illustrate the proficiency of the proposed approach.

Reabilita����o no internamento hospitalar: prospectiva na din��mica de actores - Implementa����o da governa����o cl��nica num hospital E.P.E.

Mestrado em Interven����o S��cio-Organizacional na Sa��de - ��rea de especializa����o: Pol��ticas de Administra����o e Gest��o de Servi��os de Sa��de.

O Contributo do sistema SAP R/3 no controlo interno na REFER

Disserta����o apresentada ao Instituto Superior de Contabilidade para a obten����o do Grau de Mestre em Auditoria Orientador: Mestre Agostinho Sousa Pinto

Optimization model for medium term natural gas commitment

In this paper we study the optimal natural gas commitment for a known demand scenario. This study implies the best location of GSUs to supply all demands and the optimal allocation from sources to gas loads, through an appropriate transportation mode, in order to minimize total system costs. Our emphasis is on the formulation and use of a suitable optimization model, reflecting real-world operations and the constraints of natural gas systems. The mathematical model is based on a Lagrangean heuristic, using the Lagrangean relaxation, an efficient approach to solve the problem. Computational results are presented for Iberian and American natural gas systems, geographically organized in 65 and 88 load nodes, respectively. The location model results, supported by the computational application GasView, show the optimal location and allocation solution, system total costs and suggest a suitable gas transportation mode, presented in both numerical and graphic supports.

Comunica����o interna e endomarketing: Grupo SATA

Disserta����o de Mestrado, Gest��o de Empresas/MBA, 27 de Janeiro de 2014, Universidade dos A��ores.

Resist��ncia �� mudan��a organizacional : um estudo de caso

Disserta����o de Mestrado em Gest��o de Empresas/MBA.

O endomarketing como factor de sucesso nas organiza����es: o impacto no empenhamento e na satisfa����o dos clientes internos da empresa PT PRO

A literatura descreve que as a����es de endomarketing contribuem para a aproxima����o, intera����o e o bom relacionamento entre a empresa e os colaboradores. Sendo caracterizada como uma rela����o de troca, na qual a empresa fornece instrumentos capazes de promover o interesse dos colaboradores a participarem mais ativamente em toda a envolvente organizacional - atrav��s de a����es que favore��am o di��logo, sugest��es, partilha de conhecimentos e informa����es, bem como relatos de situa����es corriqueiras ocorridas no dia-a-dia da empresa. Em contrapartida, �� medida que o colaborador se sente valorizado pela empresa e pelos colegas, passa a perceber a import��ncia do seu trabalho dentro da organiza����o, permitindo que identifique o trabalho como algo prazeroso. Esta troca contribui para a produtividade e desenvolvimento da empresa, bem como a satisfa����o e empenhamento dos colaboradores no trabalho. Neste sentido, visando averiguar como esta situa����o �� vivenciada na pr��tica decidiu-se pela realiza����o de um est��gio, tendo como quest��o de estudo qual o impacto das a����es de endomarketing no empenhamento e na satisfa����o dos clientes internos da PT PRO? Para responder a tal indaga����o foi realizado um est��gio na empresa PT PRO, nomeadamente na Dire����o de Desenvolvimento de Mercado, Marketing e Forma����o. Apresentam-se ao longo do presente relat��rio a descri����o das especificidades do est��gio, tal como as principais ila����es da�� retiradas tendo atrav��s de pesquisas documentais (arquivo e documentos internos e Intranet), reuni��es com a Dire����o de Marketing e com a tutora do est��gio, tal como pela aplica����o e an��lise de um inqu��rito por question��rio aplicado aos colaboradores, chegando-se �� conclus��o que, de facto, as a����es de endomarketing levadas a cabo pela empresa contribuem para o empenhamento e satisfa����o dos colaboradores.

A new MILP based approach for unit commitment in power production planning

This paper presents a complete, quadratic programming formulation of the standard thermal unit commitment problem in power generation planning, together with a novel iterative optimisation algorithm for its solution. The algorithm, based on a mixed-integer formulation of the problem, considers piecewise linear approximations of the quadratic fuel cost function that are dynamically updated in an iterative way, converging to the optimum; this avoids the requirement of resorting to quadratic programming, making the solution process much quicker. From extensive computational tests on a broad set of benchmark instances of this problem, the algorithm was found to be flexible and capable of easily incorporating different problem constraints. Indeed, it is able to tackle ramp constraints, which although very important in practice were rarely considered in previous publications. Most importantly, optimal solutions were obtained for several well-known benchmark instances, including instances of practical relevance, that are not yet known to have been solved to optimality. Computational experiments and their results showed that the method proposed is both simple and extremely effective.

The Dark Side of Organizational Change: The Moderating Role of Political Behavior and Organizational Cynicism

Workplace aggression is a factor that shapes the interaction between individuals and their work environment and produces many undesirable outcomes, sometimes introducing heavy costs for organizations. Only through a comprehensive understanding of the genesis of workplace aggression is possible to develop strategies and interventions to minimize its nefarious effects. The existent body of knowledge has already identified several individual, situational and contextual antecedents of workplace aggression, although this is a research area where significant gaps occur and many issues were still not addressed Dupr�� and Barling (2006). According to Baron and Neuman (1998) one of these predictors is organizational change, since certain changes in the work environment (e.g., changes in management) can lead to increased aggression. This paper intends to contribute to workplace aggression research by studying its relationship with organizational change, considering a moderating role of political behaviors and organizational cynicism (Ammeter et al., 2002, Ferris et al., 2002). The literature review suggests that mediators and moderators that intervene in the relationships between workplace aggression and its antecedents are understudied topics. James (2005) sustains that organizational politics is related to cynicism and the empirical research of Miranda (2008) has identified leadership political behavior as an antecedent of cynicism but these two variables were not yet investigated regarding their relationship with workplace aggression. This investigation was operationalized using several scales including the Organizational Change Questionnaire-climate of change, processes, and readiness (Bouckenooghe, Devos and Broeck, 2009), a Workplace Aggression Scale (Vicente and D���Oliveira, 2008, 2009, 2010), an Organizational Cynicism Scale (Wanous, Reichers and Austin, 1994) and a Political Behavior Questionnaire (Yukl and Falbe, 1990). Participants representing a wide variety of jobs across many organizations were surveyed. The results of the study and its implications will be presented and discussed. This study contribution is also discussed in what concerns organizational change practices in organizations.

Workplace aggression in organizational changing processes: The mediation role of leader political (soft and hard) behavior

One of the main trends in workplace aggression research is studying its antecedents. But the literature also reveals that some predictors remain understudied, like organizational change [1]. Additionally, possible mediators of this relationship were not investigated. The main objective of this research is studding the mediating effect of the leader political behavior (soft and hard version) on the relationship between organizational change and workplace aggression. Participants representing a wide variety of jobs across many organizations were surveyed. The measures used in this research are an Organizational Change Questionnaire climate of change, processes, and readiness [2], a Workplace Aggression Scale [e.g. 3, 4] and a Political Behavior Questionnaire [5]. The results of the study and its theoretical and practical implications will be presented and discussed.

Spinning reserve and emission unit commitment through stochastic optimization

This paper proposes a stochastic mixed-integer linear approach to deal with a short-term unit commitment problem with uncertainty on a deregulated electricity market that includes day-ahead bidding and bilateral contracts. The proposed approach considers the typically operation constraints on the thermal units and a spinning reserve. The uncertainty is due to the electricity prices, which are modeled by a scenario set, allowing an acceptable computation. Moreover, emission allowances are considered in a manner to allow for the consideration of environmental constraints. A case study to illustrate the usefulness of the proposed approach is presented and an assessment of the cost for the spinning reserve is obtained by a comparison between the situation with and without spinning reserve.

Spinning reserve and emission unit commitment through stochastic optimization

This paper proposes a stochastic mixed-integer linear approach to deal with a short-term unit commitment problem with uncertainty on a deregulated electricity market that includes day-ahead bidding and bilateral contracts. The proposed approach considers the typically operation constraints on the thermal units and a spinning reserve. The uncertainty is due to the electricity prices, which are modeled by a scenario set, allowing an acceptable computation. Moreover, emission allowances are considered in a manner to allow for the consideration of environmental constraints. A case study to illustrate the usefulness of the proposed approach is presented and an assessment of the cost for the spinning reserve is obtained by a comparison between the situation with and without spinning reserve.