The "R" Approach for Modeling a Reconfiguration Problem in Smart Grid Networks

Ensure higher levels of continuity and reliability for the electricity supply service are some of the requirements of consumers and electric power providers in the Smart Grid (SG) context. Reconfiguration of distribution networks aims to support the decision support, planning and/or real-time control of the operation of the electricity network. The goal of this paper is to propose a modelling approach for the reconfiguration problem based on R in order to better support the decision making process. Beyond that, R modelling of electricity networks may additionally support scalability evaluation, allows flexible reconfiguration analysis and potentially improves the response time when handling issues of network reconfiguration using graph theory

Hybrid Algorithm based on Genetic Algorithm and Tabu Search for Reconfiguration Problem in Smart Grid Networks Using "R"

Reconfiguration of distribution networks aims to support the decision support, planning and/or real-time control of the operation of the electricity network. It is accomplished modifying the network structure of distribution feeders by changing the sectionalizing switches. Ensure higher levels of continuity and reliability to the electricity supply service are some of the requirements of consumers and electric power providers in the Smart Grid (SG) context. The goal of this paper is to propose a hybrid algorithm (Genetic and Tabu) for the reconfiguration problem based on " R " in order to better support the decision making process. Beyond that, " R " modeling of electricity networks improves the response time when handling issues of network reconfiguration using graph theory. The status of switches is decided according to graph theory subject to the radiality constraint of the distribution networks. The algorithm is presented and simulation results of IEEE 16-bus system, showing good results and computational efficiency

Isolamento e seleção de bactérias ácido-láticas com potencial probiótico para pirarucu.

A demanda crescente do mercado mundial por proteínas de alta qualidade tem estimulado o crescimento da aquicultura. Esse crescimento ocorre pelo aumento das áreas de produção e a intensificação no sistema de criação e expõe os peixes à diversas variações ambientais provocando desequilíbrio na tríade hospedeiro-patógeno-ambiente que pode favorecer a invasão de patógenos (vírus, bactéria e parasitas) e o desenvolvimento de enfermidades resultando em perdas na produção (TORANZO et al., 2004)bitstream/item/118392/1/Isolamento-e-selecao-Cot-148.pd

Anacardium plants: Chemical,nutritional composition and biotechnological applications

Anacardium plants are native to the American tropical regions, and Anacardium occidentale L. (cashew tree) is the most recognized species of the genus. These species contain rich secondary metabolites in their leaf and shoot powder, fruits and other parts that have shown diverse applications. This review describes the habitat and cultivation of Anacardium species, phytochemical and nutritional composition, and their industrial food applications. Besides, we also discuss the secondary metabolites present in Anacardium plants which display great antioxidant and antimicrobial effects. These make the use of Anacardium species in the food industry an interesting approach to the development of green foods.AK. Jugran acknowledges the partial funding from Uttarakhand council for Biotechnology, Pantnagar, Uttarakhand, India (File No. UCB/R&D Project/2018-311) for this work. M. Martorell would like to thank the support offered by CONICYT PIA/APOYO CCTE AFB170007. N. Martins would like to thank the Portuguese Foundation for Science and Technology (FCT-Portugal) for the Strategic project ref. UID/BIM/04293/2013 and ?NORTE2020 - Northern Regional Operational Program? (NORTE-01-0145-FEDER- 000012)

Preliminary molecular studies of the first report of Burkholderia pseudomallei isolation from soil collected in the Amapá State, in Northern Brazil.

The wide spectra of colonizing microorganism, likewise Burkholderia pseudomallei, has been found in different habitats, and presenting distinct activity, as exerting physiological functions among plants, or as a pathogen for man, animals and also as a phytopathogen. A common disease of men and animals caused by B. pseudomallei, melioidosis, is a severe morbidity that usually culminates in the host death. Soil samples from different areas in the Amapá state, in northern Brazil, were screened for environmental microorganisms to assess potential antimicrobial activity aiming at biotechnological applications. Among the prospected microorganisms, B. pseudomallei was isolated from high humidity soils, mangrove, which is rich in organic materials, produced by the diversified local flora and fauna. The isolated B. pseudomallei was identified by its biochemical profile and growth characteristics. Molecular confirmation of B. pseudomallei phenotypic identification was achieved by PCR amplification of the 16 S ribosomal DNA. The sequencing of amplified products confirmed that the Amapá sample, and two other isolates from human infections in Ceará state, northeast Brazil, were B. pseudomallei, and sequence alignement to the same specie, MSHR146 strain from Australia, and clone YN01 from uncultured Burkholderia sp., deposited in the GenBank, exhibited close phylogenetic relationship among them. Until now, there is no report of B. pseudomallei related disease among human and animal populations in the Amapá state, despite the finding of B. pseudomallei in it, in an area of water buffalo ranching and flowing small rivers utilized by human populations

Short report: Spatial distribution and growth of sheep farming in Brazilian Amazon.

Sheep farming has grown substantially in the Brazilian Amazon over the previous three decades. This article analyzes the spatial distribution and the dynamics of sheep herd growth using data from the Brazilian Institute of Geography and Statistics-IBGE from 1990 to 2020. The sheep herd growth rates and densities were estimated to assess its dynamics. Maps were then drawn up to show the spatial dynamics of these variables. The highest concentration of herds in the last decade (2010) occurred in Pará, Mato Grosso, and Maranhão states. For each decade there were different growth patterns, but for the entire period (1990 to 2020), there was growth in Mato Grosso, Pará, Maranhão, Tocantins, and Amazonas micro-regions states. The highest density of herd (animals per area) was observed in Maranhão. The potential points for development identified in this study may support strategic planning aimed at strengthening the activity in the region

Pediatric tuberculosis in the metropolitan area of Rio de Janeiro

Aim: To evaluate the clinical characteristics, diagnostic approach, and treatment outcomes of tuberculosis (TB) in children living in a high-burden metropolitan area. Methods: This was a retrospective study, based on a medical chart review, involving children under 15 years old treated for TB between 2007 and 2016, in four primary health units (PHU) and three reference centers (RC) in five cities of Rio de Janeiro metropolitan area. Factors associated with TB treatment setting, microbiological diagnosis, and treatment outcomes were evaluated. Results: A total of 544 children were enrolled; 71% were treated in PHU, 36% were under 5 years old, and 72% had pulmonary TB (PTB). The HIV prevalence was 10% (31/322). Fifty-three percent had at least one microbiological test for TB, 68% of them (196/287) had TB confirmed. Among 222 children with previous TB contact, information on LTBI was available for 78 (35%), and only 17% (13/78) were treated. Extrapulmonary TB (56% vs 32%), microbiologically confirmed TB (77% vs 60%), and HIV positivity (18.5% vs 4.0%) were significantly more frequent in RC. Treatment in RC (odds ratio (OR) 3.08, 95% confidence interval (CI) 1.74–5.44) and PTB (OR 2.47, 95% CI 1.34–4.56) were independently associated with a microbiological diagnosis of TB. The treatment success rate was 85%. In the logistic regression analysis, HIV-infected children had a 2.5-fold higher risk of an unfavorable outcome (OR 2.53, 95% CI 1.0–6.38; p = 0.05). Conclusions: Opportunities for TB prevention and early TB treatment are missed due to suboptimal close contact screening. Microbiological diagnosis of TB and drug susceptibility testing in children should be made available through more sensitive and accessible tests