206 research outputs found
A construção da imagem do “bom trabalhador” português em França
Nos anos 1960 e no início dos anos 1970, Portugal testemunhou um dos maiores movimentos populacionais de saída do país. Cerca de 700 000 portugueses chegaram a França nesses anos[1]. Nos anos onde esse fluxo foi mais intenso, mais de dois terços dessas pessoas saíram do país clandestinamente, cuja viagem ficou conhecida pelo nome o “Salto”, perigo do trajeto e pelas más condições de alojamento nos bidonvilles às portas de Paris. Ainda assim a inserção no mercado de trabalho francês nesse período foi facilitada pela conjuntura socioeconómica favorável da França, encontrávamo-nos então no auge dos chamados “Trinta Gloriosos”. Segundo alguns testemunhos de emigrantes chegados a França nesses anos [2], recrutadores com propostas de trabalho esperavam os portugueses na fronteira logo que estes pisavam território francês.info:eu-repo/semantics/publishedVersio
Le patronat dans la construction de l´image des immigrés portugais en France
Cet article se propose, à partir du dépouillement des archives du Conseil National du Patronat Français (CNPF), concernant la population immigrée du Portugal en France dans les années 1960/70, de comprendre quel discours cette organisation a tenu à propos des travailleurs portugais, avec quels objectifs et quel impact sur les représentations en France. L´article montrera que « l´intérêt » du CNPF par les immigrés portugais arrive en réponse à l´opinion publique qui appelait à la responsabilisation du patronat quant aux conditions de logement de ces personnes. Le terme « épargne » est devenu ainsi l´un des termes les plus employés lors du plaidoyer du CNPF : les immigrés portugais en raison de dispositions psychologiques préfèreraient des conditions médiocres de logement plutôt que débourser plus pour les améliorer. Selon les notes de l´organisation analysée, l’immigré portugais serait prêt à sacrifier son bien-être, en se soumettant infatigablement au travail, sans horaires.info:eu-repo/semantics/publishedVersio
Uncertainty on multi-objective optimization problems
In general, parameters in multi-objective optimization are assumed as deterministic with no uncertainty. However, uncertainty in the parameters can affect both variable and objective spaces. The corresponding Pareto optimal fronts, resulting from the disturbed problem, define a cloud of curves. In this work, the main objective is to study the resulting cloud of curves in order to identify regions of more robustness and, therefore, to assist the decision making process. Preliminary results, for a very limited set of problems, show that the resulting cloud of curves exhibits regions of less variation, which are, therefore, more robust to parameter uncertainty.The authors would like to thank FCT - Fundacao para a Ciencia e a Tecnologia (Portuguese Foundation for Science and Technology) that supported in part this work
Stochastic algorithms assessment using performance profiles
Optimization with stochastic algorithms has become a relevant
approach, specially, in problems with complex search
spaces. Due to the stochastic nature of these algorithms, the
assessment and comparison is not straightforward. Several
performance measures have been proposed to overcome this
difficulty. In this work, the use of performance profiles and
an analysis integrating a trade-off between accuracy and precision
are carried out for the comparison of two stochastic
algorithms. Traditionally, performance profiles are used to
compare deterministic algorithms. This methodology is applied
in the comparison of two stochastic algorithms - genetic
algorithms and simulated annealing. The results highlight
the advantages and drawbacks of the proposed assessment.The authors would like to thank FCT - Fundacao para a Ciencia e a Tecnologia (Portuguese Foundation for Science and Technology) that supported in part this wor
Electrochemical detection of biofilms
[Excerpt] Biofilms are the result of adhesion and growth of microorganisms, creating microenvironments - a polymeric matrix - where several microbial reactions take place [1]. Usually, biofilms are divided in two groups: the ones that are beneficial, as in wastewater treatment or production of specific products, and the detrimental biofilms such as the ones that appear in drinking water pipes and heat exchangers. In any case it is very important to detect the biofilm as soon as possible, to increase its growth or to avoid the risks associated with its presence. The ideal detector must allow the easy detection of biofilms in the early stages of formation and on line. Electrochemical techniques are well known for their role in analytical chemistry, allowing the determination and quantification of a large number of organic, inorganic and biological compounds. These techniques have largely proved to provide an efficient means for detection in situ and on line of a variety of compounds [2]. [...
Doação e transplantes de órgãos: Contribuições dos profissionais sobre o trabalho interprofissional nos programas
Objective: This study aimed to identify the contributions for improvement in the interprofessional working relationship pointed out by professionals involved in organ and tissue procurement and transplantation programs. Method: exploratory study with a quantiqualitative approach conducted over a period of 21 months, with the participation of health professionals invited to complete an online questionnaire on the Google form platform. After collection, the quantitative data were organized and analyzed descriptively, and the qualitative data were categorized and submitted to content analysis. Results: 130 health professionals participated in the
study, 84% were female, of which 64% said they were white, between 41-59 years old, and 31% had worked for more than 15 years in the programs. The categories identified were: working conditions; appreciation of non-medical professionals; psychological support to professionals and funding for training of professionals pointed out as improvements in the work relationship in the programs. Conclusion: the study identified that working conditions and greater valorization of the interprofessional team allied to offering psychological support to professionals are necessary and important strategies, and may bring impacts on the satisfaction of professionals, on mental health, in addition to improvements in work processes, impacting transplantation rates.Objetivo: Com este estudo, objetivou-se identificar as contribuições de melhoria na relação de trabalho interprofissional apontadas por profissionais envolvidos nos programas de procura e de transplantação de órgãos e tecidos. Método: estudo exploratório com abordagem quanti-qualitativo realizado no período de 21 meses, com a participação de profissionais da área da saúde convidados a preencher um questionário online da plataforma de formulários do Google. Após a coleta, organizaram-se os dados quantitativos, analisando-os de maneira descritiva e, em categorias, os dados qualitativos, submetendo-os à análise de conteúdo. Resultados:participaram do estudo 130 profissionais de saúde, sendo 84% do gênero feminino, dos quais 64% se declararam de cor de pele branca; de faixa etária entre 41–59 anos, sendo que (31%) trabalhavam há mais de quinze anos nos programas. As categorias identificadas foram: condições de trabalho; valorização dos profissionais não médicos; suporte psicológico e financiamento para capacitação dos profissionais apontadas como melhorias na relação de trabalho nos programas. Conclusão: o estudo possibilitou identificar que na relação de trabalho as condições laborais e maior valorização da equipe interprofissional aliadas ao oferecimento de suporte psicológico aos profissionais são estratégias necessárias, podendo trazer impactos na satisfação dos profissionais, na saúde mental, além de melhorias nos processos de trabalho, impactando as taxas de transplantes.info:eu-repo/semantics/publishedVersio
Heuristic pattern search for bound constrained minimax problems
This paper presents a pattern search algorithm and its hybridization
with a random descent search for solving bound constrained minimax problems.
The herein proposed heuristic pattern search method combines the Hooke and
Jeeves (HJ) pattern and exploratory moves with a randomly generated approxi-
mate descent direction. Two versions of the heuristic algorithm have been applied
to several benchmark minimax problems and compared with the original HJ pat-
tern search algorithm
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