Turning Models Inside Out

We present an approach for change-based (as opposed to state-based) model persistence that can facilitate highperformance incremental model processing (e.g. validation, transformation) by minimising the cost of change identification when models evolve. We illustrate a prototype that implements the proposed approach on top of the Eclipse Modelling Framework and we present a roadmap for further work in this direction

Distribution of putative male sex pheromones among Lutzomyia sandflies (Diptera: Psychodidae).

Male Lutzomyia longipalpis produce terpene sex pheromones in glandular tissue underlying the cuticle. The pheromones are transmitted to the surface via cuticle-lined ducts (measuring 0.25 microm in diameter), each of which reaches the surface in the centre of a papule (measuring 3-3.5 microm in diameter). Similar papules, in a range of shapes but all characterized by the presence of a central pore and absence of macroserae, occur in some other species of sandfly. The aim of the present study was to determine the distribution of sex pheromones in sandflies of the genus Lutzomyia that do and do not have the papules. The results indicate that sex pheromones are not widely distributed amongst male Lutzomyia spp. Male members of the genus can be subdivided into three groups: those that produce terpenes and have cuticular papules; those that do not produce terpenes but still have the associated papules; and those that have neither terpenes nor papules. The papules seen in the species that do not synthesise sex pheromones are presumably vestigial, non-functional structures. Such species may have stopped producing pheromone as the result of changes in the way in which the females found and selected mates or changing feeding preferences. A similar event has occurred in the Lepidoptera, where vestigial pheromone-secreting structures remain in some species which no longer produce pheromone. Lutzomyia lenti collected in southern Brazil produced a novel diterpene whereas male L. lenti from north-eastern Brazil did not, supporting suggestions by others that L. lenti is, like L. longipalpis, a species complex

Manifestações clínicas do diabetes: poliúria

Fisiopatologia Poliúria1.

QR Factorization of Tall and Skinny Matrices in a Grid Computing Environment

Previous studies have reported that common dense linear algebra operations do not achieve speed up by using multiple geographical sites of a computational grid. Because such operations are the building blocks of most scientific applications, conventional supercomputers are still strongly predominant in high-performance computing and the use of grids for speeding up large-scale scientific problems is limited to applications exhibiting parallelism at a higher level. We have identified two performance bottlenecks in the distributed memory algorithms implemented in ScaLAPACK, a state-of-the-art dense linear algebra library. First, because ScaLAPACK assumes a homogeneous communication network, the implementations of ScaLAPACK algorithms lack locality in their communication pattern. Second, the number of messages sent in the ScaLAPACK algorithms is significantly greater than other algorithms that trade flops for communication. In this paper, we present a new approach for computing a QR factorization -- one of the main dense linear algebra kernels -- of tall and skinny matrices in a grid computing environment that overcomes these two bottlenecks. Our contribution is to articulate a recently proposed algorithm (Communication Avoiding QR) with a topology-aware middleware (QCG-OMPI) in order to confine intensive communications (ScaLAPACK calls) within the different geographical sites. An experimental study conducted on the Grid'5000 platform shows that the resulting performance increases linearly with the number of geographical sites on large-scale problems (and is in particular consistently higher than ScaLAPACK's).Comment: Accepted at IPDPS10. (IEEE International Parallel & Distributed Processing Symposium 2010 in Atlanta, GA, USA.

Controle da Pressão Arterial, Débito Cardíaco e RVP (resistência vascular periférica)

Vídeo demonstrativo de esquema fisiopatológico do controle da pressão arterial, débito cardíaco e RVP1.

Abordagem da crise asmática

Aula 5 do Curso Capacitação a Distância em Asma na Infância e Adolescência. Abordagem da crise, classificação do quadro, identificação dos fatores desencadeantes e do paciente que apresente situações de risco para óbito.1.

Espirometria

Vídeo demonstrativo de método de escolha para avaliação da função pulmonar com utilização de espirômetro com manobra de expiração forçada1.

Webpalestra - Eletrocardiograma Normal

1-Revisar Eletrofisiologia Cardíaca Compreender o ECG - Quanto aos valores - Quanto à técnica - Quanto às derivações 2-Aprender: - Frequência - Ritmo - Eixo1.

Asma: diagnóstico e classificação

Aula 2 do Curso Capacitação a Distância em Asma na Infância e Adolescência. Diagnóstico e classificação da Asma. Aspectos da fisiopatologia dos determinantes da doença e história natural da Asma. Avaliação geral e particularidade de cada faixa etária. A classificação da Asma como doença crônica, acompanhamento e escolha do melhor tratamento1.

Medida do pico de fluxo expiratório

Vídeo demonstrativo da técnica de Medida do Fluxo Expiratório para avaliação da função respiratória através da medida do pico de fluxo respiratório1.