Key Comparison : SIM.L-K3.2008. Calibration of angle standards. Report – Final

In 2000, a key comparison, CCL-K3 (optical polygon and angle blocks) was started, piloted by NMISA. Based on it, in 2007, the SIM metrological region started a SIM.L-K3 key comparison piloted by INMETRO. The results of this regional comparison (RMO key comparison) contribute to the Mutual Recognition Arrangement (MRA) between the national metrology institutes of the Metre Convention. It is linked with the CCL-K3 key comparison via laboratories that participated in both the CIPM and the RMO comparisons. This common participation establishes the link between the comparisons and ensures equivalence of national metrology institutes, according to the MRA between NMIs. The SIM NMIs that took part in the CCL-K3 were NIST, NRC and CENAM. However, NRC withdrew from it. GUM from Poland (EURAMET) and NPLI from India (APMP) were invited to participate in the SIM.L-K3 key comparison. The circulation of artefacts (a 12 faces polygon and 4 angle blocks) started in 2008 and was completed in 2009.Fil: Brum Vieira, Luiz Henrique. Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMetro); BrasilFil: Stone, Jack. National Institute of Standards and Technology (NIST); Estados UnidosFil: Viliesid, Miguel. Centro Nacional de Metrología (CENAM); MéxicoFil: Gastaldi, Bruno R. Instituto Nacional de Tecnología Industrial (INTI); ArgentinaFil: Przybylska, Joanna. Główny Urząd Miar (GUM); PoloniaFil: Chaudhary, K. P. National Physical Laboratory (NPL); Indi

Long-term stability evaluation and the reliability of the optical polygons calibration system from Inmetro

4 f. : il.The Dimensional Metrology Laboratory (LAMED) from the National Institute of Metrology, Standardization and Industrial Quality (INMETRO), the brazilian National Metrology Institute (NMI), has, for many years, a system used for calibration of optical polygons and precision indexing tables. Its long-term stability is being evaluated since 1995 through periodic calibrations of a LEITZ 12-faces optical polygon. The metrological confidence of this system is shown by the comparison between the measurement results from INMETRO and from the Physikalisch-Technische Bundesanstalt (PTB), the german NMI, obtained with the calibration of the above mentioned optical polygon. The choise of this standard was due to its stable construction and the reflection quality of the measurement surfaces. The evidences of the calibration system stability and the results confidence of the INMETRO’s laboratory are shown in this paper

Traceability chain and dissemination of angle measurements in Brazil

4 f. : il.The paper describes the metrological hierarchy established for the dissemination of angle measurements from the “Dimensional Metrology Laboratory” (LAMIN) of the “National Institute of Metrology, Standardisation and Industrial Quality” (INMETRO). It shows the traceability chain from the national standard of length to the reference system, a small angle generator, and then to angle standards and measuring equipment. The practical benefit of the work described is the dissemination of angle measurements in Brazil, with adequate metrological confidence, from INMETRO to accredited laboratories of the Brazilian Calibration Service (RBC) and other users

Metrologia dimensional no Instituto Nacional de Metrologia, Normalização e Qualidade Industrial INMETRO

6 f.: il.O Laboratório de Metrologia Dimensional (LAMIN), da Diretoria de Metrologia Científica e Industrial (DIMCI) do INMETRO tem desempenhado uma série de atividades e vem desenvolvendo um projeto apoiado pelo PADCT com o objetivo de implantar novos serviços metrológicos, assim como reduzir incertezas de medição. São aqui apresentadas informações sobre algumas destas atividades, assim como são mostrados resultados de comparações realizadas com o Physikalisch Technische Bundesanstalt (PTB), instituto nacional de metrologia da Alemanha, objetivando a validação de metodologias implantadas. As incertezas de medição expandidas aqui mencionadas, são calculadas segundo critério do Guia ISO (1993), para um fator de abrangência k=2 (nível de confiança de aproximadamente 95%). Como consequência tem-se uma melhoria da confiabilidade metrológica nos serviços prestados, dando-se rastreabilidade , com a requerida exatidão, às medições realizadas por laboratórios metrológicos do País

Histórias de cinemas de rua de Minas Gerais

-A coletânea reúne artigos que colocam em perspectiva os espaços de exibição cinematográfica e as experiências de suas audiências nos mais diversos contextos sociais, econômicos e culturais no Estado de Minas Gerais. As cidades Juiz de Fora, Visconde do Rio Branco (ambos da Zona da Mata), Araxá (Triângulo Mineiro), Patos de Minas (Alto Paranaíba) e Varginha (Sul de Minas) são foco de análise. O livro apresenta ainda um texto que recupera a trajetória do projeto Minas é Cinema desde a sua gênese, no ano de 2013, e que aponta alguns desafios enfrentados durante a coleta de dados nos arquivos do estado. Por fim, traz uma entrevista com Waltencir Parizzi, que integrou, ao longo de anos, o quadro de funcionários da Companhia Central de Diversões, empresa que administrou uma grande quantidade de salas em Juiz de Fora. Dentre elas, o Central, o Excelsior, o Glória, o Palace e o São Luiz

Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition)

In 2008, we published the first set of guidelines for standardizing research in autophagy. Since then, this topic has received increasing attention, and many scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Thus, it is important to formulate on a regular basis updated guidelines for monitoring autophagy in different organisms. Despite numerous reviews, there continues to be confusion regarding acceptable methods to evaluate autophagy, especially in multicellular eukaryotes. Here, we present a set of guidelines for investigators to select and interpret methods to examine autophagy and related processes, and for reviewers to provide realistic and reasonable critiques of reports that are focused on these processes. These guidelines are not meant to be a dogmatic set of rules, because the appropriateness of any assay largely depends on the question being asked and the system being used. Moreover, no individual assay is perfect for every situation, calling for the use of multiple techniques to properly monitor autophagy in each experimental setting. Finally, several core components of the autophagy machinery have been implicated in distinct autophagic processes (canonical and noncanonical autophagy), implying that genetic approaches to block autophagy should rely on targeting two or more autophagy-related genes that ideally participate in distinct steps of the pathway. Along similar lines, because multiple proteins involved in autophagy also regulate other cellular pathways including apoptosis, not all of them can be used as a specific marker for bona fide autophagic responses. Here, we critically discuss current methods of assessing autophagy and the information they can, or cannot, provide. Our ultimate goal is to encourage intellectual and technical innovation in the field