São Paulo Federal Institute of Education, Science and Technology

About: São Paulo Federal Institute of Education, Science and Technology is a education organization based out in São Paulo, Brazil. It is known for research contribution in the topics: Context (language use) & Computer science. The organization has 1707 authors who have published 2374 publications receiving 11333 citations.

Closed structure soft robotic gripper

Abstract: This work describes a new kind of soft gripper. Inspiration on nature is usual in Soft Robotics device creation. In this case, the inspiration came from a sea lamprey in order to create a closed structure soft robotic gripper. Usually the grippers have one or more soft actuators that act like fingers. Since it is difficult to know whether the fingers are really grasping an object, it is being proposed a closed structure to deal with this problem. While the proposed gripper involves the object as whole, a homogeneous force is applied on it. In addition to the details of the closed structure actuator manufacture description, two procedure tests are presented: an analysis of load versus pressure function and of the force versus pressure characteristics. At the end, some new research topics to the proposed soft gripper are discussed.

The effects of relative importance of user constraints in cloud of things resource discovery: a case study

Abstract: Over the last few years, the number of smart objects connected to the Internet has grown exponentially in comparison to the number of services and applications. The integration between Cloud Computing and Internet of Things, named as Cloud of Things, plays a key role in managing the connected things, their data and services. One of the main challenges in Cloud of Things is the resource discovery of the smart objects and their reuse in different contexts. Most of the existent work uses some kind of multi-criteria decision analysis algorithm to perform the resource discovery, but do not evaluate the impact that the user constraints has in the final solution. In this paper, we analyse the behaviour of the SAW, TOPSIS and VIKOR multi-objective decision analyses algorithms and the impact of user constraints on them. We evaluated the quality of the proposed solutions using the Pareto-optimality concept.

Validation of single measurement of 12-hour urine excretion for estimation of sodium and potassium intake. A longitudinal study

Abstract: BACKGROUND: Evaluation of sodium and potassium intake can be carried out using different methods. Biological markers are able to capture intra and inter-individual variability and are used as separate measurements of consumption. The aim of this study was to test the validity of a single measurement of urinary sodium and potassium excretion as representative of habitual intake. DESIGN AND SETTING: Longitudinal study, federal university. METHODS: Food consumption data from a sample of adult university students and public servants (25 to 74 years old) were collected through 24-hour records and 12-hour urinary sodium and potassium excretion at five different times over a one-year period. The dietary data were entered into a nutritional research data software system and the sodium and potassium intakes were estimated. The variables were tested for normal distribution using the Kolmogorov-Smirnov test. One-way analysis of variance or the Kruskal-Wallis test was used to evaluate means. Correlations between measurements using Pearson or Spearman coefficients were calculated. The degree of agreement between the five measurements was given by the intraclass correlation coefficient. RESULTS: Satisfactory agreement was found between the five measurements of urinary sodium and potassium excretion over a year, with little variability in consumption. CONCLUSION: A single measurement of urinary sodium and potassium accurately estimated the usual average consumption of these electrolytes. This can be used in population-based studies.

Quintais produtivos como espaços da agroecologia desenvolvidos por mulheres rurais

Abstract: Neste trabalho pretendeu-se investigar a relacao entre os conhecimentos tradicionais das mulheres rurais com as praticas agroecologicas realizadas nos quintais produtivos. Foram identificadas mulheres envolvidas com a producao agroecologica na regiao de Araraquara e, a partir disso, foram analisadas as questoes de genero existentes no meio rural e as relacoes entre o papel das mulheres com a agroecologia, buscando identificar especialmente a importância dessas mulheres para a manutencao da cultura e dos costumes a partir de seu trabalho no espaco produtivo. Foram entrevistadas mulheres inseridas na transicao agroecologica e mulheres consideradas pioneiras da luta pela terra nos assentamentos. A pesquisa de campo foi realizada por meio de entrevistas em uma amostra qualitativa, utilizando-se a tecnica de amostragem “Bola de Neve”, atraves do qual os primeiros entrevistados indicam os novos participantes significativos para o trabalho. Os principais resultados indicam que os quintais sao lugares da agroecologia e do trabalho feminino, onde as mulheres aplicam conhecimentos tradicionais de manejo agricola. Com seu trabalho, as agricultoras contribuem de maneira significativa para a economia das familias com a producao de alimentos que garantem a qualidade e a regularidade das refeicoes cotidianas. As mulheres agricultoras detem grande parte dos conhecimentos tradicionais no que se refere a plantas, sementes e tecnicas de plantio, sendo responsaveis pela reproducao de tais praticas e saberes nos quintais produtivos, contribuindo para a manutencao da cultura local e para o fortalecimento da agroecologia.