Relação entre o score de adesão à dieta mediterrânica e a hemoglobina glicosilada em pessoas com diabetes mellitus tipo 2

Poster apresentado no XIV Congresso de Nutrição e Alimentação. Centro de Congressos de Lisboa, 21-22 Maio de 201

SlutWalk goes glocal: estratégias de difusão online no caso português

A SlutWalk consiste num movimento transnacional que surgiu no Canadá, em 2011, com o objetivo de combater a culpabilização das vítimas de violência sexual, de afirmar a auto-determinação das mulheres sobre os seus corpos e de reivindicar que a sexualidade é política. Este artigo analisa os canais e os suportes de comunicação que foram utilizados na veiculação de informação sobre a SlutWalk Portugal, através da análise de redes sociais (online), incidindo numa abordagem qualitativa da teoria de difusão de inovações. Este modelo permitiu analisar sistemas de transferência de informação, que ligam organizações, atores sociais, eventos e os modos como a SlutWalk Portugal foi construída nas redes sociais online.info:eu-repo/semantics/publishedVersio

Utilidade dos estudos de condução nervosa e respostas-F do nervo peronial na radiculopatia de L5 e a sua correlação com o grau de gravidade avaliada eletromiograficamente

As radiculopatias lombares referem-se a um processo patológico envolvendo as raízes nervosas espinais, causando sintomas radiculares ao nível dos membros inferiores. As respostas-F são ondas tardias que advêm de descargas recorrentes de neurónios motores despolarizados antidromicamente, que podem ser úteis na avaliação de lesões radiculares. Com o objetivo de avaliar a utilidade dos estudos de condução nervosa e respostas- F do nervo peronial no diagnóstico de radiculopatia de L5 e a sua correlação com o seu grau de gravidade, foram estudados 47 sujeitos que padeciam de radiculopatia de L5 e foram comparados com um grupo de controlo, constituído por 28 sujeitos saudáveis. Foram estudadas as amplitudes do PAMC do nervo peronial profundo, do PANS do peronial superficial, bem como as latências mínima, média e máxima, cronodispersão e persistência das Respostas-F. Foi realizada ainda uma avaliação eletromiográfica, com o intuito de classificar o acometimento da raiz em termos de gravidade. Registaram-se diferenças significativas entre os dois grupos na amplitude do PAMC do peronial profundo (p<0,0001), na F-mínima, F-média, F-máxima e cronodispersão (p<0,0001), e ainda na persistência (p 0,014). Todos estes parâmetros também se correlacionaram significativamente com o grau de gravidade da radiculopatia, sendo as latências das ondas-F e a cronodispersão progressivamente maiores nos sujeitos com um grau de afeção mais grave, e a persistência e a amplitude dos estudos de condução motora mais baixas. O fator que se evidenciou mais sensível no diagnóstico desta patologia foi a latência-máxima das ondas-F, 31,25%, e o menos sensível a persistência, apenas alterada em 9,34% dos indivíduos. Tendo em consideração todos os parâmetros avaliados nas respostas-F atingiu-se uma sensibilidade global desta técnica de 42,19%. Com esta investigação concluímos que os estudos de condução nervosa e as respostas-F poderão ser úteis como complemento na avaliação das radiculopatias lombares, apresentando uma sensibilidade considerável para esta patologia. Não se deve limitar o estudo desta técnica à avaliação das latências mínima das ondas-F, mas incluir sempre todos os outros parâmetros, aumentando assim a sua sensibilidade. Estas técnicas deverão ser incluídas no estudo das radiculopatias de L5.The lumbar radiculopathy refers to a pathological process involving spinal nerve roots, causing radicular symptoms in the lower limbs. F-responses are late waves that come from recurrent discharges of motor neurons depolarized antidromically, which may be useful in evaluating root lesions. The goal of this study is to evaluate the use of nerve conduction studies and Fresponses of the Peronial nerve in the diagnosis of L5 radiculopathy and its correlation with the degree of severity. We studied 47 subjects suffering from L5 radiculopathy, compared with a control group consisting of 28 healthy individuals. We evaluate the amplitudes of the deep Peroneal nerve CMAP, the superficial Peroneal SNAP, F-responses in terms of minimal, mean, maximum latencies, chronodispersion and persistence. In order to classify the severity of lesion of the root we also performed an electromyographic evaluation. Were noticed significant differences between both groups in the amplitude of the deep Peroneal CMAP (p<0.0001), the minimum, mean and maximum F-waves latencies (p<0.0001), and persistence (p≃0.014). All these parameters were significantly correlated with severity of radiculopathy. We found that the F-wave latencies and chronodispersion were progressively larger and persistent and the amplitude of motor conduction studies was lower. The factor that showed higher sensitivity in the diagnosis of this condition was the F-wave maximum latency, 31.25%, and the less sensitive was the persistence, changed only in 9.34% of individuals. Taking into account all the parameters evaluated in the Fresponses we achieved a global sensitivity of this technique to 42.19%. With this research we concluded that the nerve conduction studies and F-responses may be useful as a supplement in the evaluation of lumbar radiculopathy, presenting a considerable sensitivity to this pathology. One should not limit the study of this technique for the evaluation of minimal F-wave latencies, but always include all other parameters, thereby increasing its sensitivity. These techniques should be included in the L5 radiculopathies studies

Unions, Increasing Returns and Endogenous Fluctuations

We analyse the implications of unions (efficient bargaining) for multiplicity of stationary states and welfare, local indeterminacy, bifurcations and endogenous fluctuations (deterministic and stochastic). We use an overlapping generations model with external increasing returns to scale, where capital is the unique asset. We find that a slight increase in unions power may increase the levels of capital, employment and the welfare of all agents at the steady state. However multiple steady states may exist. Moreover, our results show that increasing returns to scale are a necessary condition for the emergence of deterministic endogenous fluctuations. However, we find that union's bargaining power can dramatically influence the local stability of the system. In fact, while an increase in the bargaining power of unions reduces the scope for local indeterminacy, the emergence of endogenous fluctuations, through Hopf bifurcations may become more likely when unions are present. Therefore, if the relevant trajectory exhibits endogenous fluctuations, steady state welfare is no longer the unique important element from a social point of view. In this case, whether unions are 'good' institutions or not may well depend on the trade off between efficiency and intergenerational equity that society is willing to take

Psychopathy and intimate partner violence

"First published online: January 24, 2018"Several studies found that psychopathy is an important predictor of criminal behavior in general and of intimate partner violence in particular. However, these conclusions are often based on scales with less well-established validity, and some inconsistent results have emerged with regard to the contribution of specific psychopathic facets to intimate partner violence. In a sample of 152 batterers from Portugal aged between 22 and 70 years old, we examined whether Psychopathy Checklist–Revised (PCL-R) total scores and the four facets (scored based on a semistructured interview and on file information) predicted the frequency of intimate partner violence. Two separate linear regression analyses were conducted controlling for criminal variables. PCL-R total scores positively predicted intimate partner violence frequency, above and beyond the criminal variables. As for the four facets, only the PCL-R affective facet held a significant effect in predicting intimate partner violence frequency after controlling for criminal variables. These results support the inclusion of psychopathy in risk assessments and treatment of perpetrators of intimate partner violence, particularly with regard to the affective deficits of the construct.The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was conducted at Psychology Research Center (UID/PSI/01662/2013), University of Minho, and supported by the Portuguese Foundation for Science and Technology and the Portuguese Ministry of Science, Technology and Higher Education through national funds and cofinanced by European Regional Development Fund (FEDER) through COMPETE2020 under the PT2020 partnership agreement (POCI-01-0145-FEDER-007653). The study was also supported by Grant SFRH/BD/66110/2009 from the Portuguese Foundation for Science and Technology awarded to the first author

An application of the SMED methodology in an electric power controls company

Lean production is a strategy for high competiveness in manufacturing. The capability for economical manufacture in small batch sizes is an essential requirement for achieving lean production. This facilitates mixed production of several kinds of products to match varying product demand and can have a major impact in reducing inventories. An obvious requirement for this is the high frequency of equipment setups or product changeovers. This will not be attractive unless set-up times and costs can be reduced to competitive levels. The application of SMED can achieve this. SMED is a well-established methodology involving a set of techniques, methods and guidelines to achieve fast product changeovers at machines. This paper describes the application of SMED in the production process of plastic and metal components required for the assembly of several types of circuit breakers. The work was carried out during a short period of a few months under a master thesis project. Several important SMED strategies and solutions were implemented and evaluated in terms of their impact on productivity and on other manufacturing performance measures. Three specific machines were involved: a punch-bending machine, a punch press and an injection moulding machine. An important contribution was made by introducing innovative and simple solutions such as adapting tools and normalizing changeover operations. Most of the achieved results exceeded the initial expectations. Beyond the purely technical and economic benefits of SMED, better workstations’ ergonomic conditions were also attained. Besides the usual quantification of setup time reduction, other indicators were calculated, namely: work-in- process (WIP), annual setup cost and distance travelled by operators during the changeover process. Reductions of setup time varying from 59% to 90% were achieved. WIP of metal components was reduced from 17.05 to 7.74 days reducing more than 50% on the corresponding costs. A more impressive reduction on WIP was obtained for plastic parts, actually from 5 to 1.09 days of work corresponding to a WIP cost reduction of over 80%. The distance travelled by operators during the changeover process was dramatically reduced too: typically a reduction from 300 m to 10 m and less. The total annual cost savings projection, in this small area of parts production, is near 20,000 €. Although large benefits were obtained from the study, scope for further improvement still exists. In fact the objective of product changeover times below 10 minutes aimed by SMED was not achieved in one case.Universidade do MinhoFundação para a Ciência e a Tecnologia (FCT

Abriendo la Caja de Pandora: la participación política de las mujeres, las desigualdades de género y la acción positiva

Uma década após a aprovação da Lei da Paridade em Portugal, tornou-se imperativo explorar os efeitos simbólicos da representação descritiva das mulheres políticas (i.e., em termos numéricos) sobre as atitudes políticas das/os cidadãs/os portuguesas/es. Com este objetivo, realizámos um estudo que envolveu um questionário online dirigido à população portuguesa com mais de 18 anos. São apresentados os resultados de uma análise realizada com 291 participantes (83% do sexo feminino e 17% do sexo masculino), com idades entre 18 e 70 anos, dividida em três partes centradas na participação política das mulheres; nos estereótipos de género e na cobertura noticiosa de políticas/os; na Lei da Paridade e noutras medidas promotoras da igualdade. Os resultados indicam mudanças e continuidades, estando as/os portuguesas/es mais conscientes das desigualdades de género no contexto político e da importância de medidas para além da Lei da Paridade, face à qual continuam, apesar de tudo a perceber-se algumas resistênciasA decade after the adoption of the Parity Law in Portugal, it became imperative to explore the symbolic effects of the descriptive representation of female politicians (i.e. in numerical terms) on the political attitudes of Portuguese citizens. With this aim, we carried out a study that involved an online questionnaire addressed to the Portuguese population over 18 years old. The results of an analysis performed with 291 participants (83% female and 17% male), aged between 18 and 70 years old are presented in three parts, focused on women's political participation; gender stereotypes and news coverage of male and female politicians; and in the Parity Law and other measures promoting equality. The results indicate changes and continuities, with the Portuguese being more aware of gender inequalities in the political field and of the importance of measures beyond the Parity Law, in spite of which, despite everything, there is still some resistance.Una década después de la aprobación de la Ley de la Paridad en Portugal, se hizo imperativo explotar los efectos simbólicos de la representación descriptiva de las mujeres políticas (y, en términos numéricos) sobre las actitudes políticas de las ciudadanas e ciudadanos portugueses. Con este objetivo, realizamos un estudio que involucró un cuestionario online dirigido a la población portuguesa con más de 18 años. Se presentan los resultados de un análisis realizado con 291 participantes (83% del sexo femenino y 17% del sexo masculino), con edades entre 18 y 70 años, dividida en tres partes centradas en la participación política de las mujeres; en los estereotipos de género y en la cobertura periodística de políticas/os; en la Ley de la Paridad y en otras medidas promotoras de la igualdad. Los resultados indican cambios y continuidades, siendo las/os portuguesas/es más conscientes de las desigualdades de género en el contexto político, y de la importancia de medidas más allá de la Ley de la Paridad, frente a la cual continúan, a pesar de todo a percibirse algunas resistencias.info:eu-repo/semantics/publishedVersio

De uma teia a uma rede: SlutWalk Portugal nas redes sociais online

A agregação de indivíduos em torno de movimentos visa gerar um grupo capaz de influenciar atitudes e comportamentos, modelando assim os sistemas sociais (Tonnies, 2002). Esta ação de engenharia social consiste em i) criar uma ideia, ii) proceder à sua disseminação e iii) fazer com que outros indivíduos a adotem. Diferentes formas de engenharia social criam uma finalidade assente numa ideia (engenharia social utópica) ou em combater um pressuposto que visa alternar no sistema social (engenharia social fragmentada) (Popper, 1966). Os movimentos sociais unem estas duas formas de engenharia social ao conferir i) uma identidade ao protesto, ii) um princípio de oposição (a mensagem) e um iii) princípio antagónico contra o qual se manifestam, enquadrando um elemento de totalidade pelo qual tentam controlar a narrativa histórica, suscitando o interesse dos restantes elementos (Touraine, 1977, 2007). As ações de mobilização pretendem angariar membros, aceder às suas redes (pessoais e sociais), e utilizá-los como elementos que catalisem e despertem o interesse de outros indivíduos.info:eu-repo/semantics/publishedVersio