Comparison Between Three Methods to Monitor Reservoir Extension in the Brazilian Semi-Arid Region

The State of Pernambuco covers an extensive semi-arid area where the Caatinga biome dominates. This region is characterized by long periods of drought, highlighting the need for water resource optimization. This paper aimed to compare three methods to assess reservoir changes: MapBiomas' products, the Normalized Difference Water Index (NDWI), and a support vector machine (SVM) algorithm. Initially, we obtained the monthly precipitation from 1987 to 2019 and calculated the yearly accumulation. Mapbiomas, Landsat 7 ETM, and Landsat 8 OLI data from 2012-2018 were accessed and processed using the Google Earth Engine platform. We obtained the annual image with the median pixel criterion to determine the NDWI and quantify the annual reservoir area. For the supervised classification with SVM, samples from different land-use types of the study area were used to train the algorithm. From 2012 to 2018, a reservoir reduction of 63.42% was observed with MapBiomas images, 69.49% with NDWI images, and 67.69% using the SVM algorithm. The results obtained using NDWI were the most similar to those from the artificial intelligence classification, indicating that NDWI can be used to monitor the reservoir conditions

Vinho merlot e as alterações metabólicas e cardiovasculares em camundongos LDLR -/-

Dyslipidemia is a risk factor for the insulin resistance and cardiovascular diseases, such as left ventricular hypertrophy and remodeling of the arterial. Resveratrol, present in grapes, is a possible mediator of cardiovascular protection. The study aimed to evaluate the effect of red wine from the Merlot grape (Vitis vinifera L.) on dyslipidemia and its involvement in male mice, knockout for the LDL receptor gene (LDLR-/-). The mice were divided into 4 experimental groups: Group S received standard rodent food; Group SV received standard feed for rodents and wine; Group HL received high fat diet; Group HLV received hyperlipidic food and wine orally for 60 days. All animals received water and food ad libitum during this period. After this period, they remained fasting and were then anesthetized. Blood was collected for serum analysis of triglycerides, total cholesterol, and its fractions (HDL and VLDL), C-reactive protein, glucose, and insulin to compare the data. Morphometric and histological analyzes of the left ventricle and abdominal aorta were also performed. It was found that Merlot red wine has antidyslipidemic effects on genetic dyslipidemia, associated with food, partially preventing insulin resistance, hyperinsulinemia and increased CRP; as well as cardiovascular effect, partially preventing LVH and arterial remodeling.A dislipidemia é considerada um fator de risco para o desenvolvimento de resistência insulínica e de doenças cardiovasculares, como a hipertrofia ventricular esquerda e o remodelamento da parede arterial. O resveratrol, presente nas uvas, tem sido estudado como um possível mediador de proteção cardiovascular. O presente estudo teve como objetivo avaliar o efeito do vinho tinto da uva Merlot (Vitis vinifera L.) na dislipidemia e seus acometimentos em camundongos machos, knockout para o gene do receptor de LDL (LDLR-/-). Os camundongos foram divididos em 4 grupos experimentais: Grupo S recebeu ração padrão para roedores; Grupo SV recebeu ração padrão para roedores e vinho; Grupo HL recebeu ração hiperlipídica; Grupo HLV recebeu ração hiperlipídica e vinho, via oral, durante 60 dias. Todos os animais receberam água e ração ad libitum nesse período. Após este, permaneceram em jejum e, em seguida, foram anestesiados. O sangue foi coletado para análise sérica dos triglicérides, do colesterol total e suas frações (HDL e VLDL), da proteína C-reativa, glicose e insulina para comparação dos dados. Também foram realizadas análises morfométricas e histológicas do ventrículo esquerdo e da aorta abdominal. Constatou-se que o vinho tinto Merlot apresenta efeitos antidislipidêmicos na dislipidemia genética, associada a alimentar, prevenindo, parcialmente, a resistência insulínica, hiperinsulinemia e o aumento da PCR, assim como efeito cardiovascular, prevenindo, parcialmente, a HVE e o remodelamento arterial

Third Brazilian consensus for autoantibodies screening in HEp-2 cells (ANA) : recommendations for standardization of autoantibodies screening trial in HEp-2 cells, quality control and clinical associations

Objetivo: O 3º Consenso Brasileiro para pesquisa de autoanticorpos em Células HEp-2 (FAN) teve como propósito avaliar as dificuldades de implantação do 2º Consenso ocorrido no ano de 2002, discutir estratégias para controlar a qualidade do ensaio e promover a atualização das associações clínicas dos diversos padrões. Métodos: Participaram do encontro em Goiânia nos dias 13 e 14 de abril de 2008 pesquisadores e especialistas de diversos centros universitários e laboratórios clínicos de diferentes regiões do Brasil, com o propósito de discutir e aprovar as recomendações que visam à melhor padronização, interpretação e utilização do ensaio pelos clínicos. Representantes comerciais de diferentes empresas produtoras de insumos para realização do teste de FAN foram convidados como ouvintes. Resultados e Conclusões: O 3º Consenso enfatizou a necessidade do controle de qualidade em imunofluorescência dada a heterogeneidade de microscópios e reagentes disponíveis no mercado, promoveu adequações na terminologia utilizada para classificar os diferentes padrões e, finalmente, atualizou as associações clínicas com finalidade de facilitar cada vez mais o melhor uso do ensaio pelos clínicos. ________________________________________________________________________________ ABSTRACTObjective: The Third Brazilian Consensus for autoantibodies Screening in HEp-2 cells had as purpose the evaluation of difficulties in the accomplishment of the 2nd Consensus recommendations that took place in the year of 2002, the discussion of strategies for quality control of the assay and the promotion of an update of the clinical associations of the several immunofluorescent patterns. Methods: Several ANA experts from university centers and private laboratories in different areas in Brazil joined the workshop in Goiânia on 2008 April 13 and 14 with the purpose of discussing and approving the recommendations for standardization, interpretation and use of the test by physicians. Commercial representatives of different ANA slide brands were also invited as listeners to the workshop. Results and Conclusions: The 3rd Consensus emphasized the need for quality control in indirect immunofluorescent since there is a considerable heterogeneity of available microscopes and reagents. It also promoted adaptations in the previously approved terminology used to classify the different patterns and finally updated the clinical associations of the several patterns with the purpose of providing guidance for interpretation of the assay by clinical pathologists and assistant physicians

Third brazilian consensus for autoantIbodies screening in HEp-2 Cells : historical perspectve, quality control and clinical associatons

O III Consenso Brasileiro para Pesquisa de Autoanticorpos em Células HEp-2 (FAN) objetivou discutir estratégias para controlar a qualidade do ensaio, promover a atualização das associações clínicas dos diversos padrões e avaliar as difculdades de implantação do II Consenso ocorrido no ano de 2002. Métodos: Nos dias 13 e 14 de abril de 2007 participaram do encontro em Goiânia pesquisadores e especialistas de diversos centros universitários e laboratórios clínicos de diferentes regiões do Brasil, com o propósito de discutir e aprovar as recomendações que visam a melhores padronização, interpretação e utilização do ensaio pelos clínicos. Foram convidados como ouvintes representantes comerciais de diferentes empresas produtoras de insumos para realização do teste de FAN. Resultados e conclusão: Dada a heterogeneidade de microscópios e reagentes disponíveis no mercado, o III Consenso enfatizou a necessidade do controle de qualidade em ensaios de imunofuorescência indireta. Foram também feitas algumas adequações na terminologia utilizada para classifcar os diferentes padrões. Finalmente, foi realizada uma atualização das associações clínicas com fnalidade de facilitar cada vez mais o melhor uso do ensaio pelos clínicos. _________________________________________________________________________________ ABSTRACTThe Third Brazilian Consensus for Autoantibodies Screening in HEp-2 Cells (ANA) had as purpose the evaluation of diffculties in the accomplishment of the 2nd Consensus recommendations that took place in the year of 2002, the discussion of strategies for quality control of the assay and the discussion of an update of the clinical associations of the several immunofuorescent patterns. Methods: Several ANA experts from university centers and private laboratories in different areas in Brazil joined the workshop in Goiânia on 2007 April 13 and 14 with the purpose of discussing and approving the recommendations for standardization, interpretation and use of the test by physicians. Commercial representatives of different ANA slide brands were also invited as listeners to the workshop. Results and conclusion: The 3rd ANA Consensus emphasized the need for quality control in indirect immunofuorescent assays since there is a considerable heterogeneity of available microscopes and reagents. It also promoted adaptations in the previously approved terminology used to classify the different patterns and fnally updated the clinical associations of the several patterns with the purpose of providing guidance for interpretation of the assay by clinical pathologists and assistant physicians

Definições para a padronização da pesquisa de auto-anticorpos contra constituintes do núcleo (FAN HEp-2), nucléolo, citoplasma e aparelho mitótico e suas associações clínicas

OBJECTIVE: The Second Brazilian Consensus on Antinuclear Antibodies (ANA) in HEp-2 Cells approved and extended the decision trees developed during the First Brazilian Consensus in order to also offer information about mixed patterns of fluorescence. METHODS: Since this test elicits reactions not only to nuclear autoimmune antigens but also to different cell compartments, new denominations for the test were approved. Results and CONCLUSIONS: These new denominations encompass variations on the autoantibody testing against the nucleus (ANA HEp-2), nucleolus, cytoplasm, and mitotic apparatus issue. Furthermore, major clinical associations were described for each immunofluorescent pattern, facilitating the interpretation of laboratory results in the clinical practice.OBJETIVO: O Segundo Consenso Brasileiro de Fator Antinuclear (FAN) em Células HEp-2 ratificou os algoritmos de decisão para leitura dos padrões do FAN na imunofluorescência indireta vistos na primeira edição do Consenso Brasileiro, adicionando ainda um novo algoritmo relacionado com os padrões mistos. MÉTODOS: Tendo em vista a habilidade do teste em detectar autoantígenos nos distintos compartimentos celulares, e não apenas no núcleo, propõe-se novas denominações para este exame laboratorial. RESULTADOS E CONCLUSÕES: Como novas denominações algumas sugestões foram igualmente aceitas, dentro do tema pesquisa de auto-anticorpos contra constituintes do núcleo (FAN HEp-2), nucléolo, citoplasma e aparelho mitótico. Foram abordadas as principais relevâncias clínicas com os padrões de FAN descritos, facilitando o melhor uso do ensaio pelo médico.FMUSPUNIFESPBio-Rad Laboratório BrasilHospital Geral de GoiâniaBiomédicaUniversidade Federal de UberlândiaUFMG HCPUCRS HCNew Life Produtos HospitalaresUniversidade Católica de GoiásFMUSP HC Laboratório CentralPatologista ClínicaFMUSP HCFrischmann Aisengart Unidad InmunologíaUniversidade Católica de Goiás Laboratório de Auto-ImunidadeExame Medicina LaboratorialFMUFG HC Laboratório de Imuno-Reumatologia e HLALab. Santa LuziaMedivax/BionHSPE/SPUniversidade Católica de Goiás Laboratório da Área de SaúdeFarmacêutica-BioquímicaUniv. Fed. Mato GrossoFMUFG Serviço de ReumatologiaHospital Durand Unidad InmunologíaLaboratório ClínicoUFRGS HCPA Serviço de ReumatologiaUERJ FCMUFMG FMHospital Universitário de Brasília Laboratório de ReumatologiaUNIFESPSciEL

IV Brazilian Guidelines for autoantibodies on HEp-2 cells

Objective: the Fourth Brazilian Consensus for Autoantibodies Screening in HEp-2 Cells (ANA) was held in Vitoria, Espirito Santo, and aimed to discuss strategies and recommendations about the technique, standardization, interpretation and quality control of the indirect immunofluorescence reaction on HEp-2 cells.Methods: Twenty three ANA experts from university centers and private laboratories in different areas from Brazil discussed and agreed upon recommendations for the fourth edition of the Brazilian Consensus for Autoantibodies Screening in HEp-2 Cells.Results and conclusion: the 4th ANA Consensus included three novel patterns into the existing algorithm (cytoplasmic Rods and Rings, nuclear Quasi-homogeneous, and CENP-F). Emphasis was given to the need of attention in describing the peculiar mixed pattern elicited by anti-DNA topoisomerase I (Scl-70) autoantibodies, comprising nuclear fine specked, nucleolar homogeneous pattern, NOR staining in metaphase plates, and cytoplasmic fine speckled patterns. the group also emphasized the need for continuous quality control in indirect immunofluorescence assays, the establishment of screening dilutions, as well as conjugate titration. An alert was made regarding the heterogeneity of commercial kits in defining patterns and the use of solid phase methodologies to determine the presence of autoantibodies. (C) 2014 Elsevier Editora Ltda. All rights reserved.Objetivo: O IV Consenso Brasileiro para Pesquisa de Autoanticorpos em Células HEp-2 (FAN) realizado em Vitória (ES), no dia 18 de setembro de 2012, objetivou discutir estratégias e recomendações relacionadas ao procedimento técnico, à padronização e à interpretação dos resultados da pesquisa de autoanticorpos em células HEp-2. Métodos: Participaram do evento 23 pesquisadores e especialistas de Universidades e laboratórios brasileiros. Foram abordados diferentes tópicos, discutidos amplamente a fim de se estabelecer recomendações específicas. Resultados e conclusão: O IV Consenso integrou à árvore de decisão o padrão citoplasmático em Anéis e Bastões, o padrão nuclear pontilhado Quasi-homogêneo (QH) e o padrão misto CENP-F. Discutiu-se ainda a necessidade de atenção para a classificação do padrão misto relacionado à presença de anticorpos anti-DNA topoisomerase I (Scl-70), compreendendo os componentes nuclear pontilhado fino, nucleolar homogêneo, NOR na placa metafásica e citoplasmático pontilhado fino. Foram sugeridas diretrizes para o controle de qualidade do teste, diluição de triagem e diluição de esgotamento, e foi emitido alerta quanto à necessidade de atenção em relação à heterogeneidade de substratos disponíveis no mercado e a utilização de metodologias automatizadas para detecção de autoanticorpos.Albert Einstein Medicina DiagnosticaAlka TecnologiaAmaral Costa LaboratorioConselho Federal de BiomedicinaDASAEuroimmun BrasilGrupo FleuryHemagenMedivaxOlimpusPadrao Laboratorio ClinicPontificia Universidade Catolica de Goias - PUC-GoiasSociedade Brasileira de Patologia Clinica e Medicina LaboratorialSociedade Brasileira de ReumatologiaThermo ScientificWama DiagnosticaWerfen Group - Werfen MedicalHermes PardiniConselho Regional de Biomedicina - 3a RegiaoPUC Goias, Goiania, Go, BrazilFleury Med & Saude, São Paulo, BrazilUniversidade Federal de São Paulo UNIFESP, Discipline Rheumatol, São Paulo, BrazilUniv Fed Uberlandia, Hosp Clin, Serv Rheumatol, BR-38400 Uberlandia, MG, BrazilClin Doencas Reumat Porto Alegre, Ctr Diagnost Med & Rheuma, Porto Alegre, RS, BrazilAmaral Costa Med Diagnost, Belem, PA, BrazilUniv São Paulo, Fac Med, Hosp Clin, Lab Invest Med, São Paulo, BrazilUniv São Paulo, Fac Med, Hosp Clin, Lab Cent, São Paulo, BrazilHosp Israelita Albert Einstein, Dept Clin Pathol, São Paulo, BrazilInst Hermes Pardini, Belo Horizonte, MG, BrazilUniv São Paulo, Fac Med, São Paulo, BrazilUniv Fed Minas Gerais, Fac Med, Belo Horizonte, MG, BrazilUniv Catolica Brasilia, Brasilia, DF, BrazilUniv Fed Goias, Fac Med, Goiania, Go, BrazilUniv Sul Santa Catarina UNISUL, Florianopolis, SC, BrazilUniv Vale do Itajai UNIVALE, Florianopolis, SC, BrazilUniv Fed Espirito Santo, Vitoria, ES, BrazilEBMSP, Salvador, BA, BrazilGrp DASA, São Paulo, BrazilEscola Super Ciencias Saude Dist Fed, Brasilia, DF, BrazilLab Sabin, Brasilia, DF, BrazilUniversidade Federal de São Paulo UNIFESP, Discipline Rheumatol, São Paulo, BrazilWeb of Scienc

Hunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 4.7 fb−1 of s√=7TeV proton-proton collisions

Results are presented of a search for new particles decaying to large numbers of jets in association with missing transverse momentum, using 4.7 fb−1 of pp collision data at s√=7TeV collected by the ATLAS experiment at the Large Hadron Collider in 2011. The event selection requires missing transverse momentum, no isolated electrons or muons, and from ≥6 to ≥9 jets. No evidence is found for physics beyond the Standard Model. The results are interpreted in the context of a MSUGRA/CMSSM supersymmetric model, where, for large universal scalar mass m 0, gluino masses smaller than 840 GeV are excluded at the 95% confidence level, extending previously published limits. Within a simplified model containing only a gluino octet and a neutralino, gluino masses smaller than 870 GeV are similarly excluded for neutralino masses below 100 GeV

Observation of associated near-side and away-side long-range correlations in √sNN=5.02 TeV proton-lead collisions with the ATLAS detector

Two-particle correlations in relative azimuthal angle (Δϕ) and pseudorapidity (Δη) are measured in √sNN=5.02  TeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1  μb-1 of data as a function of transverse momentum (pT) and the transverse energy (ΣETPb) summed over 3.1<η<4.9 in the direction of the Pb beam. The correlation function, constructed from charged particles, exhibits a long-range (2<|Δη|<5) “near-side” (Δϕ∼0) correlation that grows rapidly with increasing ΣETPb. A long-range “away-side” (Δϕ∼π) correlation, obtained by subtracting the expected contributions from recoiling dijets and other sources estimated using events with small ΣETPb, is found to match the near-side correlation in magnitude, shape (in Δη and Δϕ) and ΣETPb dependence. The resultant Δϕ correlation is approximately symmetric about π/2, and is consistent with a dominant cos⁡2Δϕ modulation for all ΣETPb ranges and particle pT

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results