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Lectinas : caracterização quimiotaxinomica de microalgas de água doce
(Universidade Federal de São Carlos, 2016-02-02) Archanjo, Naiara Carolina Pereira; Bagatini, Inessa Lacativa; https://lattes.cnpq.br/3904631503604006; Vieira, Armando Augusto Henriques; https://lattes.cnpq.br/4428377384377272; https://lattes.cnpq.br/3939717793858445
Freshwater green microalgae are a group which present great complexity for classical morphological taxonomy. For groups like Selenastraceae family, the morphological characteristics are ambiguous at genus level and do not reflect the phylogenetic relationships. Taxonomic polyphasic approaches have been emerged to assist the classical taxonomy in the classification of such groups. Taking into account the specific relation lectin-carbohydrate and the great diversity in monomer composition of extracellular polysaccharides from microalgae, we aim to understand if some microalgae taxa have specific terminal monosaccharides set, which could be used as chemotaxonomic feature within a polyphasic taxonomic approach. Thus, we performed an optimization of methods so far used in taxonomy, and analyzed the terminal monosaccharides and lectins behavior against ten species from different genera to the following families: Selenastraceae and Scenedesmaceae (Chlorophyceae), Botryococcaceae and Oocystaceae (Trebouphyceae), and Fragilariaceae, Stephanodiscaceae (Bacillariphyceae), all of them in crops. We noticed that is possible, using this technique, to separate strains from the same species isolated different from places. Furthermore, we found some indicator monosaccharides the microalgae of some taxa. In this work we use six types of lectins and eleven anti synthetic lectins to recognize the terminal monosaccharides and lectins.
Técnica de macacos planos na avaliação de estruturas de alvenaria com blocos vazados de concreto
(Universidade Federal de São Carlos, 2016-02-02) Soriani, Mateus de Oliveira; Parsekian, Guilherme Aris; https://lattes.cnpq.br/7798651726059215; https://lattes.cnpq.br/1265464055806437
The present study delas with nondestructive evaluation of modern masonry built with hollow concrete blocks, through the flatjack technique. The technique is already used to evaluate masonry structures with solid bricks and stones and it is considered as efficient to obtain in situ mechanical properties, without any permanent damages. The tests in solid unit masonry using flatjack is included in international standards and recommendations as: ASTM C 1196 e 1197-09 e RILEM MDT.D.4 e MDT.D.5-04. The current standards and the practical applications deal with masonry with brick or stones elements only. Nondestructive evaluation in modern hollow block masonry is demanded and the flatjack can be used in these cases. However, the current available jack can be used only on solid units, due to its geometrical limitations. Therefore, this research proposes to adapt the flatjack technique for nondestructive evaluation in modern masonry built with hollow concrete blocks. The analyzed test is the deformability one, which the modulus of elasticity and an estimative of the compressive strength is wanted. In this research, a new flatjack equipment was developed to allow its application on hollow blocks and it was tested in modern masonry samples. The new equipment was successfully developed and it was used in flatjack tests on hollow concrete block masonry. As main results, masonry properties obtained from the flatjack technique was close to the expected ones, indicating the great potentiality of the technique for hollow blocks also.