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A influência da satisfa??o profissional no absentismo laboral
Agapito,Sandra Marreiros; Sousa,Fernando Cardoso de;
Revista Portuguesa de Saúde Pública , 2010,
Abstract: introduction: this study aims at providing evidence that the job satisfaction of a sample of administrative personnel and medical assistants, in a public health institution, differs according with the degree of perceived job absenteeism. material and methods: a questionnaire adapted from the professional satisfaction scale (lima, vala & monteiro, 1994), was administered to a sample of opportunity of 200 subjects (77 administrative personnel and 123 medical assistants). results: the analyses of the answers allowed to conclude that job satisfaction influenced absenteeism, and this influence was not detected in every aspect of professional satisfaction but only in those related with the factor fundamental satisfaction (only in relationships with colleagues), in the category of medical assistants; and in the factor material conditions, especially in promotion perspectives, in the category of administrative personnel. conclusions: the analyses revealed two different populations as to the factors which affected their feelings of satisfaction, in its relationship with absenteeism, suggesting, as recommendations, a particular attention to procedural and distributive justice to the job shift system in use, with the former, as well as to the connection between absenteeism and the degree of satisfaction with material aspects, in the later.
Confabulando valores: La cigarra y la hormiga
Marreiros Monteiro, S.,Bal?a, ?.,Acevedo, F.
Ocnos , 2010,
Abstract: En una época en la que tanto se oye hablar de “crisisde valores”, “sociedad sin valores”, “inversión devalores”, sentimos la necesidad de percibir en quémedida el texto literario infantil, en general, y lafábula, en particular, asumen una función modelizadoradel mundo, proporcionando una contribuciónválida, no solo para su descodificación, sino tambiénpara la formación de los individuos y para la transmisióndel capital cultural de cada sociedad.Del amplio universo fabulístico centramos nuestraatención en la fábula La cigarra y la hormiga, dadoque es uno de los textos que ilustra, en el imaginariopopular, situaciones menos felices de la vidade los individuos, que presentan las consecuenciasnefastas que acarrearía el hecho de que éstas noperpetúen las ense anzas que vehicula.
Mapping of Secondary Virtual Networks onto Wireless Substrate based on Cognitive Radio: multi-objective formulation and analysis
Andson Marreiros Balieiro,Kelvin Lopes Dias
Computer Science , 2014,
Abstract: There is a growing demand for wireless services with different requirements in a dense and heterogeneous wireless environment. Handling this complex ecosystem is becoming a challenging issue, and wireless virtualization emerges as an efficient solution. Although the inclusion of virtualization in wireless networks ensures a better use of resources, current approaches adopted for wireless virtualization can cause an underutilization of resources, since the resource allocated to a virtual wireless network is not shared with other one. This problem can be overcome by combining wireless virtualization with the cognitive radio (CR) technology and dynamic access spectrum (DSA) techniques. Thus, virtual wireless networks with different access priorities to resources (e.g., primary and secondary) can be deployed in an overlay form and share the same substrate wireless network, where the secondary networks use the resources opportunistically. However, challenges emerge in this new scenario, ranging from the mapping to the operation of these networks. This paper is the first to propose the cognitive radio virtual network environment and to formulate the problem of mapping the secondary virtual networks (SVNs) onto the wireless substrate network based on CR. To this end, a multi-objective formulation is designed. Moreover, an analysis of the metrics defined in the problem is performed in order to give the reader useful assistance in designing schemes to solve the problem of mapping SVNs onto substrate networks.
Variation in quartzite exploitation during the Upper Palaeolithic of Southwest Iberian Peninsula
Pereira, Telmo,Cascalheira, Jo?o,Marreiros, Jo?o,Almeida, Francisco
Trabajos de Prehistoria , 2012, DOI: 10.3989/tp.2012.12090
Abstract: The Upper Paleolithic of SW Iberia is marked by the presence of chopper and flake assemblages in quartzite. Detailed characterization at regional and chronological levels of these assemblages is of the utmost importance because, in the most Paleolithic recent phases, they can be found without type-fossils associated or in non-datable deposits. In this study, we used 24 quartzite assemblages from SW Iberia, to test the diagnostic character of this raw material through attribute analysis and refitting. Results indicate that Gravettian, Solutrean and Magdalenian can be distinguished on their quartzite assemblages, enabling, by itself, the differentiation of the Upper Paleolithic key-sequence. They also indicate that Gravettian and Magdalenian assemblages are technologically closer to each other than to Solutrean, a pattern possibly related with the adaptation to the Last Glacial Maximum. El Paleolítico Superior del Suroeste de la Península Ibérica está marcado por la presencia de conjuntos de cantos tallados y lascas en cuarcita. La caracterización detallada a nivel regional y cronológico de estos conjuntos es de la mayor importancia, ya que, en las fases más recientes del Paleolítico, se pueden encontrar sin asociación a fósiles-guía o depósitos datables. En este estudio, hemos utilizado 36 conjuntos de cuarcita de esa región para poner a prueba el carácter diagnóstico de esta materia prima a través de análisis de tributos y remontajes. Los resultados indican que Gravetiense, Solutrense y Magdaleniense se pueden distinguir en sus conjuntos de cuarcita, lo que permite, por sí mismo, la diferenciación de la secuencia clave del Paleolítico Superior. También indican que los conjuntos Gravetiense y Magdaleniense están tecnológicamente más próximos entre sí que respecto al Solutrense, un patrón posiblemente relacionado con la adaptación al último Máximo Glaciar.
Context-Enriched and Location-Aware Services
MoonBae Song,Goreti Marreiros,Hoon Ko,Jae-Ho Choi
Journal of Computer Networks and Communications , 2012, DOI: 10.1155/2012/649584
Context-Enriched and Location-Aware Services
MoonBae Song,Goreti Marreiros,Hoon Ko,Jae-Ho Choi
Journal of Computer Networks and Communications , 2012, DOI: 10.1155/2012/649584
Brassica carinata for control of Phytophthora spp. in strawberry field crops
Barrau,Carmen; Porras,Maria; Romero,Eva; Zurera,Carlos; Ramos,Nídia; Soares,Celestino; Neto,Eugénia; Marreiros,António; Entrudo,José; Romero,Fernando;
Revista de Ciências Agrárias , 2009,
Abstract: soil biofumigation (sb) and soil solarization (ss) are nonchemical methods for the control of soilborne pathogens. ss uses solar radiation to heat soil and sb is based on the action of volatile compounds produced by the decomposition of cruciferae, essentially glucosinolates (gs) and isothiocyanates (itcs). brassica spp. are used as biofumigant because of their different concentrations and types of itcs that are different in their toxicity against pathogenic fungi. suppressiveness of the brassica varies between species. biofumigant effect depends on plant age and environmental growth conditions. brassica carinata, the most effective species on the in vitro control of phytophthora spp., was selected as biofumigant to evaluate and compare the ability of sb and ss to control phytophthora spp. in soil and to enhance field production of strawberry. sb with b. carinata + ss reduce p. cactorum in soil and increases strawberry yield and fruit weigh.
Altera??es morfométricas em músculo respiratório de ratos submetidos à imobiliza??o de pata
Santos-Júnior, Francisco Fleury Uch?a;Alves, Jamille Soares Moreira;Machado, André Accioly Nogueira;Carlos, Patrick Sim?o;Ferraz, Alex Soares Marreiros;Barbosa, Roseli;Leal-Cardoso, José Henrique;Ceccatto, Vania Marilande;
Revista Brasileira de Medicina do Esporte , 2010, DOI: 10.1590/S1517-86922010000300012
Abstract: immobilization is a frequently used procedure in clinical practice and common in pain diseases and fractures. this study examined the influence of immobilization in a muscle-related respiratory system, the diaphragm. this experiment was conducted with twelve male rats divided into two groups, control and immobilized with an alternative method of restraining by tape, kept for two weeks. we analyzed the morphometry of the diaphragm muscle fibers with hematoxylin/eosin staining. statistical difference was found (p < 0.0001) when the average diameter of the diaphragm muscle fibers of immobilized animals (47.15μm ± 0.329μm) was compared to the ones in the control group (54.67μm ± 0.396μm). considering the results, it can be concluded that the immobilization of the animal paw in the used model was able to produce hypotrophy of respiratory musculature, as well as a general framework for reducing the mass of the animal.
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