Layered smart grid architecture approach and field tests by ZigBee technology

This paper presents a layered Smart Grid architecture enhancing security and reliability, having the ability to act in order to maintain and correct infrastructure components without affecting the client service. The architecture presented is based in the core of well design software engineering, standing upon standards developed over the years. The layered Smart Grid offers a base tool to ease new standards and energy policies implementation. The ZigBee technology implementation test methodology for the Smart Grid is presented, and provides field tests using ZigBee technology to control the new Smart Grid architecture approach. (C) 2014 Elsevier Ltd. All rights reserved.

Comparison of body fat content and distribution of familial amyloidotic polyneuropathy patients versus healthy subjects

The deposition of amyloid fibers at the peripheral nervous system can induce motor neuropathy in Familial Amiloidotic Polyneuropethy (FAP) patients. This produces progressive reductions in functional capacity. The only treatment for FAP is a liver transplant, followed by aggressive medication that can affect patients' metabolism. To our knowledge, there are no data on body fat distribution or comparison between healthy and FAP subjects, which may be important for clinical assessment and management of this disease. PURPOSE: To analyze body fat content and distribution between FAP patients and healthy subjects. METHODS: Body fat content and distribution were measured through Double Energy X-ray Densitometry (DXA) in two groups. Group 1 consisted of 43 Familial Amyloidotic Polyneuropathy patients (19 males, 32 + 8 Yrs, and 24 females, 37 + 5 yrs), who had liver transplant less than 2 months before. Group 2 consisted of 18 healthy subjects of similar age (8 males, 36 + 7 yrs, and 10 females, 39 + 5 yrs). RESULTS: Healthy subjects showed higher values than FAP patients for: BMI (24,2+2,3kg/m2 vs 22,3+3,8 kg/m2 respectively, p<0,05), % trunk BF (26,21+8,34kg vs 20,78+9,05kg respectively, p<0,05), % visceral BF (24,43+7,97% vs 19,21+9,30% respectively, p<0,05), % abdominal BF (26,63+8,51% vs 20,63+10,35% respectively, p<0,05) abdominal subcutaneous BF (0,533+0,421kg vs 0,353+0,257kg respectively, p=0,05), abdominal BF/BF ratio (0,09+0,02 vs 0,08+0,02 respectively, p<0,05) and abdominal BF/trunk BF ratio (0,19+0,03 vs 0,17+0,03 respectively, p<0,05). CONCLUSIONS: These results showed that FAP patients soon after liver transplantation exhibited a healthier body fat profile compared to controls. However, fat content and distribution varied widely in FAP subjects, suggesting an individualized approach for assessment and intervention rather than general guidelines. Future research is needed to investigate the long term consequences on body fat following liver transplant in this population.

Comparison of body fat content and distribution of familial amyloidotic polyneuropathy patients versus healthy subjects

The deposition of amyloid fibers at the peripheral nervous system can induce motor neuropathy in Familial Amiloidotic Polyneuropethy (FAP) patients. This produces progressive reductions in functional capacity. The only treatment for FAP is a liver transplant, followed by aggressive medication that can affect patients' metabolism. To our knowledge, there are no data on body fat distribution or comparison between healthy and FAP subjects, which may be important for clinical assessment and management of this disease.

Moradia no centro hist��rico do Montijo: reabilita����o vs constru����o nova

Disserta����o para obten����o do grau de Mestre em Engenharia Civil na ��rea de Especializa����o de Edifica����es

Projecto de entreposto frigor��fico a R-744/R-717 para produtos congelados

Pretende-se com este trabalho de Projecto de Mestrado conceber uma c��mara frigor��fica de 20000 m3 para armazenar produtos congelados e estudar um sistema frigor��fico com dois fluidos frigorig��nios que ser��o o CO2 (R-744) e o NH3 (R-717) O trabalho inicia-se com a defini����o dos objectivos principais para o projecto de um sistema frigor��fico deste tipo. Ap��s a defini����o dos objectivos, o projecto prop��e um estudo termodin��mico do CO2 (R-744) como fluido frigorig��nio, definindo se o seu historial de utiliza����o, caracter��sticas principais, diagrama press��o-entalpia com a distin����o das diversas fases do flu��do, compara����o em diversos par��metros com outros fluidos, o porqu�� da utiliza����o deste flu��do, problemas comuns em sistemas com a presen��a deste flu��do, entre outros par��metros de estudo. De seguida ser�� feito o dimensionamento de uma c��mara frigor��fica de 20000 m3 para armazenar produtos congelados paletizados atrav��s de um balan��o t��rmico manual e um balan��o t��rmico inform��tico atrav��s do programa da Centauro comparando no final o resultado dos dois m��todos. Ser�� feito uma descri����o das caracter��sticas b��sicas da c��mara frigor��fica com um esquema simples do edif��cio. Ser�� abordado de seguida o sistema frigor��fico a CO2 (R-744) e a NH3 (R-717) nas suas diversas caracter��sticas, nomeadamente no c��lculo de caudais, diagrama press��o-entalpia, dimensionamento de tubagens e finalmente selec����o de equipamento. Procede-se assim tamb��m ao estudo um sistema apenas a NH3 (R-717) com as suas diversas caracter��sticas nomeadamente no c��lculo de caudais, diagrama press��o-entalpia, dimensionamento de tubagens e finalmente selec����o dos equipamentos mais importantes, para que desta forma se proceda �� compara����o dos dois sistemas a n��vel energ��tico, consumo el��ctrico e manuten����o de equipamentos. Finalmente proceder-se-�� interpreta����o de resultados com o objectivo final de escolher a melhor solu����o nos v��rios par��metros de compara����o, para o esquema em quest��o.

Avalia����o de dados funcionais em repouso do c��rebro normal: causalidade de Granger

Mestrado em Radia����es Aplicadas ��s Tecnologias da Sa��de. ��rea de especializa����o: Resson��ncia Magn��tica

Lar militar: projecto de execu����o

Trabalho Final de Mestrado para obten����o do grau de mestre em Engenharia Civil na ��rea de Especializa����o em Estruturas

A arte contempor��nea enquanto elemento facilitador da auto valoriza����o dos jovens perante as suas cria����es art��sticas

Disserta����o apresentada �� Escola Superior de Educa����o de Lisboa para obten����o de grau de mestre em Educa����o Art��stica, na Especializa����o de Artes Pl��sticas na Educa����o

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.

Agress��o no trabalho em processos de mudan��a organizacional: O papel mediador do cinismo organizacional e do comportamento pol��tico

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 o f 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 aggr ession, although this is a research area where significant gaps occur and many issues were still not addressed (Dupr�� & Barling, 2006). According to Neuman and Baron (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 the mediation role of political behaviors an d organizational cynicism (Ammeter, Douglas, Gardner, Hochwarter, & Ferris, 2002). The literature review suggests that mediators and moderators that intervene in the relationships between workplace aggression and its antecedents are understudied topics. Ja mes (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, & Broeck, 2009), a Workplace Aggressio n Scale (Vicente, 2008, 2009), an Organizational Cynicism Scale (Wanous, Reichers, & Austin, 1994) and a Political Behavior Questionnaire (Yukl & Falbe, 1990). Participants representing a wide variety of jobs across many organizations were surveyed. The r esults 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.

Optimiza����o da gest��o de energia e da seguran��a de um edif��cio baseada num sistema t��cnico centralizado

Trabalho Final de Mestrado para obten����o do grau de Mestre em Engenharia Mec��nica Perfil Energia, Refrigera����o e Climatiza����o

Compara����o t��cnica da conce����o/solu����o de projetos de climatiza����o para um hotel rural

Trabalho Final de Mestrado para obten����o do grau de Mestre em Engenharia com a Especialidade em Energia, Climatiza����o e Refrigera����o

Reabilita����o de um im��vel industrial em Marvila: projeto de investimento

Trabalho de Projeto para obten����o do grau de Mestre em Engenharia Civil

An��lise est��tica n��o linear de um edif��cio em bet��o armado

Trabalho Final de Mestrado para obten����o do grau de Mestre em Engenharia Civil

Avoiding healthy cells extinction in a cancer model

We consider a dynamical model of cancer growth including three interacting cell populations of tumor cells, healthy host cells and immune effector cells. For certain parameter choice, the dynamical system displays chaotic motion and by decreasing the response of the immune system to the tumor cells, a boundary crisis leading to transient chaotic dynamics is observed. This means that the system behaves chaotically for a finite amount of time until the unavoidable extinction of the healthy and immune cell populations occurs. Our main goal here is to apply a control method to avoid extinction. For that purpose, we apply the partial control method, which aims to control transient chaotic dynamics in the presence of external disturbances. As a result, we have succeeded to avoid the uncontrolled growth of tumor cells and the extinction of healthy tissue. The possibility of using this method compared to the frequently used therapies is discussed. (C) 2014 Elsevier Ltd. All rights reserved.