ANALYSIS OF MORPHOLOGICAL AND HYDROLOGICAL CHANGES IN THE CORRENTES RIVER

Meandering rivers have a number of features that differentiate them from rectilinear and anastomosing channels, such as the rapid change of course, which is the result of continuous adjustments of hydro-sedimentary factors. Studying these changes helps to inform on the potential future changes, and generates valuable data for landuse planning. This study aims to identify the morphological changes in the lower Correntes River between 1984 and 2016, and generate information that is currently scarce about the watershed. A temporal analysis of migrating meanders using remote sensing, literature search, and field work was conducted. This river is highly mobile with lateral and downstream migration, exhibiting a rectilinear channel tendency as shown by the decreased sinuosity between 1984 and 2016. This trend reflects channel adjustment in relation to hydro-sedimentary factors. Because the upstream hydroelectric dam retained sediment and enhanced flow velocity, erosion and meander migration increased. In addition to the channel modification, the dam caused observable changes to the river stage and discharg

Modelling 5-km running performance on level and hilly terrains in recreational runners

Incline and level running on treadmills have been extensively studied due to their different cardiorespiratory and biomechanical acute responses. However, there are no studies examining the performance determinants of outdoor running on hilly terrains. We aimed to investigate the influence of anthropometrics, muscle strength, and cardiorespiratory and gait spatiotemporal parameters during level (0%) and inclined (+7%) running on performance in level and hilly 5-km races. Twenty male recreational runners completed two 5-km outdoor running tests (0% vs. +7% and −7%), and two submaximal (10 km·h −1 ) and incremental treadmill tests at 0 and 7% slopes, after complete laboratory evaluations. The velocity at maximal oxygen consumption (VO2max) evaluated at 7% incline and level treadmill running were the best performance predictors under both hilly (R2 = 0.72; p < 0.05) and level (R2 = 0.85; p < 0.01) conditions, respectively. Inclusion of ventilatory and submaximal heart rate data improved the predictive models up to 100%. Conversely, none of the parameters evaluated in one condition contributed to the other condition. The spatiotemporal parameters and the runners’ strength levels were not associated to outdoor performances. These results indicate that the vVO2max evaluated at similar slopes in the lab can be used to predict 5-km running performances on both level and hilly terrains

APLICATIVO DE GONIOMETRIA PARA DISPOSITIVO MÓVEL (ANDROID®)

Introdução: A goniometria é um método de avaliação utilizado para medir os ângulos articulares do corpo. É um método amplamente utilizado na prática clínica quanto em pesquisas científicas, com a finalidade de aferir a amplitude de movimento (ADM) das articulações. Objetivo: Desenvolver um aplicativo de goniometria para dispositivo móvel que auxiliasse fisioterapeutas e profissionais na área afins a obter dados quanto à amplitude de movimento articular (ADM). Métodos: O projeto foi desenvolvido em três fases (Desenvolvimento; Depuração; Validação). Resultados: Entre os sensores existentes, o acelerômetro, se mostrou o mais adequado para a criação desse aplicativo. Conclusão: Os resultados apresentados confirmam que o dispositivo móvel para goniometria pode ser uma ferramenta útil para fisioterapeutas e profissionais da área afins

Definição e instanciação de um processo híbrido SCRUM e RUP aderente ao ciclo PDCA

Uma das principais maneiras de lidar com problemas recorrentes em projetos de software consiste na adoção de frameworks de gestão de processo. No entanto, há projetos que são mais adequados às metodologias tradicionais e outros às metodologias ágeis. Algumas empresas têm combinado práticas tradicionais e ágeis em modelos híbridos de gestão de projetos. Neste contexto, este artigo apresenta uma pesquisa-ação que resultou na definição e instanciação de um processo híbrido constituído de práticas provenientes dos frameworks SCRUM e RUP em um projeto real de desenvolvimento de software. Esse processo foi avaliado através da técnica de revisão por pares, demonstrando-se satisfatório no seguimento das premissas de ambos os frameworks, na gestão do projeto e no atendimento do ciclo Plan, Do, Check e Act (PDCA). Por fim, foi feita a análise SWOT do processo pela equipe que seguiu suas atividades no projeto-alvo da pesquisa

Até onde posso arrastar? – Construindo acordos sobre os limites da pesca artesanal de arrasto na Baía Norte de Florianópolis frente à legislação ambiental.

A região marinha entre o norte da Ilha de Santa Catarina e o continente, em Santa Catarina, tem sido considerada pelos órgãos de fiscalização ambiental como uma baía e, portanto, como área de restrição à pesca de arrasto de camarões, de acordo com a Portaria n° 51/83, da extinta Superintendência do Desenvolvimento da Pesca (SUDEPE). Essa Portaria, que permanece válida, proíbe essa modalidade de pesca em baías do Estado, mas não define o limite geográfico dessas baías, tornando legalmente insegura a atividade de centenas de pescadores artesanais da região. O debate sobre a determinação dos limites da chamada “Baía Norte” de Florianópolis foi incrementado a partir da construção participativa do Plano de Manejo da Área de Proteção Ambiental do Anhatomirim (APAA), publicado em 2013. Em setembro de 2014, pescadores artesanais de arrasto de camarões foram autuados pelo Instituto Brasileiro de Meio Ambiente e Recursos Naturais Renováveis (IBAMA), por estarem pescando dentro dos limites da “Baía Norte”, muito embora os pescadores estivessem fora destes limites, considerando tanto os limites usualmente praticados pela Polícia Ambiental de Santa Catarina quanto a proposição deste limite pelo Plano de Manejo da APAA. O episódio deflagrou a mobilização dos pescadores para a institucionalização da definição deste limite, durante a qual foram realizadas reuniões em diferentes fóruns e elaborados vários documentos técnicos, subsidiando um acordo sobre o limite em questão, envolvendo pescadores e órgãos ambientais, dentre outras agências governamentais, em novembro de 2014. Neste artigo, apresentamos os resultados do acompanhamento das reuniões realizadas neste período e da análise dos documentos técnicos produzidos, bem como uma discussão em torno dos aspectos sociais, ambientais e institucionais relativos à aplicabilidade da legislação ambiental

SPATIOTEMPORAL EVOLUTION OF THE MARGINS OF LAKE UBERABA, PANTANAL FLOODPLAIN (BRAZIL)

Aquatic macrophytes are important components of wetland ecosystems, and studying them contributes to a better understanding of ecological succession in the Pantanal. The function and history of floating macrophytes on the shores of Lake Uberaba, located on the Paraguay River floodplain, were examined. A multitemporal analysis of Landsat satellite images in the years 1984-2015 was conducted. For the analysis, a land cover map was generated with three classes: water, aquatic macrophytes, and surroundings (undefined vegetation). The results revealed ~21.4% decrease in open water area of the lake over a period of 26 years (-4.7 km2/yr.). The expansion of vegetation helps explain the loss of open water and the recent shrinkage of Lake Uberaba. Macrophyte surface area along the lake margins grew by 1.4 km2/yr. Through ecological succession, the growth and decay of aquatic plants (r-strategists) along the lake shore likely provided the soil substrate needed for colonization by terrestrial plant assemblages (k-strategists). This hypothesis that we propose to describe the evolution of dynamic geomorphological processes in Lake Uberaba should be tested in other areas to verify its applicability to similar system

Mutation of the surface layer protein SlpB has pleiotropic effects in the probiotic propionibacterium freudenreichii CIRM-BIA 129

Propionibacterium freudenreichii is a beneficial Gram-positive bacterium, traditionally used as a cheese-ripening starter, and currently considered as an emerging probiotic. As an example, the P. freudenreichii CIRM-BIA 129 strain recently revealed promising immunomodulatory properties. Its consumption accordingly exerts healing effects in different animal models of colitis, suggesting a potent role in the context of inflammatory bowel diseases. This anti-inflammatory effect depends on surface layer proteins (SLPs). SLPs may be involved in key functions in probiotics, such as persistence within the gut, adhesion to host cells and mucus, or immunomodulation. Several SLPs coexist in P. freudenreichii CIRM-BIA 129 and mediate immunomodulation and adhesion. A mutant P. freudenreichii CIRM-BIA 129ΔslpB (CB129ΔslpB) strain was shown to exhibit decreased adhesion to intestinal epithelial cells. In the present study, we thoroughly analyzed the impact of this mutation on cellular properties. Firstly, we investigated alterations of surface properties in CB129ΔslpB. Surface extractable proteins, surface charges (ζ-potential) and surface hydrophobicity were affected by the mutation. Whole-cell proteomics, using high definition mass spectrometry, identified 1,288 quantifiable proteins in the wild-type strain, i.e., 53% of the theoretical proteome predicted according to P. freudenreichii CIRM-BIA 129 genome sequence. In the mutant strain, we detected 1,252 proteins, including 1,227 proteins in common with the wild-type strain. Comparative quantitative analysis revealed 97 proteins with significant differences between wild-type and mutant strains. These proteins are involved in various cellular process like signaling, metabolism, and DNA repair and replication. Finally, in silico analysis predicted that slpB gene is not part of an operon, thus not affecting the downstream genes after gene knockout. This study, in accordance with the various roles attributed in the literature to SLPs, revealed a pleiotropic effect of a single slpB mutation, in the probiotic P. freudenreichii. This suggests that SlpB may be at a central node of cellular processes and confirms that both nature and amount of SLPs, which are highly variable within the P. freudenreichii species, determine the probiotic abilities of strains.Fil: do Carmo, Fillipe L. R.. Institut National de la Recherche Agronomique; Francia. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Marques Da Silva, Wanderson. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Tavares, Guilherme C.. Universidade Federal de Minas Gerais; BrasilFil: Ibraim, Izabela C.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Cordeiro, Barbara F.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Oliveira, Emiliano R.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Rabah, Houem. Institut National de la Recherche Agronomique; FranciaFil: Cauty, Chantal. Institut National de la Recherche Agronomique; FranciaFil: da Silva, Sara H.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Canário Viana, Marcus V.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Caetano, Ana C. B.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: dos Santos, Roselane G.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: de Oliveira Carvalho, Rodrigo D.. Instituto de Ciencias Da Saúde; BrasilFil: Jardin, Julien. Institut National de la Recherche Agronomique; FranciaFil: Pereira, Felipe L.. Universidade Federal de Minas Gerais; BrasilFil: Folador, Edson L.. Universidade Estadual da Paraiba; BrasilFil: Le Loir, Yves. Institut National de la Recherche Agronomique; FranciaFil: Figueiredo, Henrique C. P.. Universidade Federal de Minas Gerais; BrasilFil: Jan, Gwénaël. Institut National de la Recherche Agronomique; FranciaFil: Azevedo, Vasco. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; Brasi

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio